WO2001002899A2 - Electrophoretic medium provided with spacers - Google Patents
Electrophoretic medium provided with spacers Download PDFInfo
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- WO2001002899A2 WO2001002899A2 PCT/US2000/017944 US0017944W WO0102899A2 WO 2001002899 A2 WO2001002899 A2 WO 2001002899A2 US 0017944 W US0017944 W US 0017944W WO 0102899 A2 WO0102899 A2 WO 0102899A2
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- WIPO (PCT)
- Prior art keywords
- capsules
- spacers
- medium
- display
- electrophoretic
- Prior art date
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field
- G02F1/166—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
- G02F1/167—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—Constructional details
- G02F1/16757—Microcapsules
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—Constructional details
- G02F1/1679—Gaskets; Spacers; Sealing of cells; Filling or closing of cells
Definitions
- the present invention relates to an electrophoretic medium provided with spacers, and to an electrophoretic display incorporating such a medium.
- Electrophoretic displays have been the subject of intense research and development for a number of years. Such displays can have attributes of good brightness and contrast, wide viewing angles, state bistability, and low power consumption when compared with liquid crystal displays.
- bistability are used herein in their conventional meaning in the art to refer to displays comprising display elements having first and second display states differing in at least one optical property, and such that after any given element has been driven, by means of an addressing pulse of finite duration, to assume either its first or second display state, after the addressing pulse has terminated, that state will persist for at least several times, for example at least four times, the minimum duration of the addressing pulse required to change the state of the display element.
- problems with the long-term image quality of these displays have prevented their widespread usage. For example, particles that make up electrophoretic displays tend to cluster and settle, resulting in inadequate service-life for these displays.
- An encapsulated, electrophoretic display typically does not suffer from the clustering and settling failure mode of traditional electrophoretic devices and provides further advantages, such as the ability to print or coat the display on a wide variety of flexible and rigid substrates.
- printing is intended to include all forms of printing and coating, including, but without limitation: pre-metered coatings such as patch die coating, slot or extrusion coating, slide or cascade coating, curtain coating; roll coating such as knife over roll coating, forward and reverse roll coating; gravure coating; dip coating; spray coating; meniscus coating; spin coating; brush coating; air knife coating; silk screen printing processes; electrostatic printing processes; thermal printing processes; ink jet printing processes; and other similar techniques.
- pre-metered coatings such as patch die coating, slot or extrusion coating, slide or cascade coating, curtain coating
- roll coating such as knife over roll coating, forward and reverse roll coating
- gravure coating dip coating
- spray coating meniscus coating
- spin coating spin coating
- brush coating air knife coating
- silk screen printing processes electrostatic printing processes
- an electrode may be formed by printing a conductive material directly on to the electrophoretic medium; alternatively, an electrode pre-formed on a substrate can be laminated on to the electrophoretic medium, which is able to withstand the heat and pressure required for such lamination without damage.
- the mechanical strength and cohesion of the electrophoretic medium maintain the requisite spacing between the electrodes disposed on either side of the medium without any need for mechanical spacers or similar devices to control this spacing. Accordingly, if the electrodes (and any substrates attached thereto) are flexible, the encapsulated electrophoretic display can be curved or rolled without affecting the display qualities of the device; see, for example, Drzaic et al., "A Printed and Rollable Bistable Electronic Display SID
- encapsulated electrophoretic media possess considerable mechanical strength and cohesion, it is of course important that none of the capsules in such displays be ruptured, since rupture of even a small number of capsules allows the internal phase of the capsules (this internal phase comprising the electrophoretic particles themselves and the liquid medium in which they are suspended) to leak through the medium, thus adversely affecting the appearance of the display. It has now been found that, by providing spacers within such an encapsulated electrophoretic medium, the resistance of the medium to mechanical stresses can be increased, thereby enabling the medium to be used in applications, and under processing conditions, which would otherwise result in unacceptable capsule rupture.
- this invention provides an encapsulated electrophoretic medium comprising a layer of capsules, each of these capsules comprising a liquid and at least one particle disposed within the liquid and capable of moving therethrough on application of an electric field to the medium.
- the medium is characterized by a plurality of spacers dispersed among the capsules.
- this invention provides a method of forming an electrophoretic display; this method comprises (a) providing a substrate; and (b) providing, adjacent the substrate, an encapsulated electrophoretic medium comprising a layer of capsules, each of these capsules comprising a liquid and at least one particle disposed within the liquid and capable of moving therethrough on application of an electric field to the medium.
- the method is characterized by providing a plurality of spacers dispersed among the capsules.
- FIGS. 1, 2 and 3 of the accompanying drawings are schematic cross- sections, taken perpendicular to the plane of the electrodes of the displays, through three different preferred encapsulated electrophoretic displays of the present invention. These drawings are not to scale, emphasis instead generally being placed upon illustrating the principles of the invention.
- a plurality of spacers are dispersed among the capsules. These spacers serve to relieve some of the pressure which would otherwise be applied to the capsules when substantial pressures are placed upon the electrophoretic medium, thus enabling the medium to withstand, without capsule rupture, higher pressures than it would be able to withstand in the absence of the spacers.
- the spacers used in the present medium serve an entirely different function than the spacers used in conventional liquid crystal displays.
- an encapsulated electrophoretic medium possesses considerable mechanical strength and cohesion, and hence is well able to accurately control the spacing between its associated electrodes without the need for spacers.
- a liquid crystal display In contrast, in a conventional liquid crystal display the electro-optically active layer of liquid crystal is a true liquid and is incapable of itself maintaining any specific spacing between the layers of the display disposed on opposed sides of the liquid crystal layer. Furthermore, such a liquid crystal display requires the maintenance of a very small gap, typically about 2 to 7 ⁇ m, over the entire width of the display, which may be 12 inches
- liquid crystal display (304 mm) or more. Since the operation of the liquid crystal display depends upon the liquid crystal rotating the plane of polarization of light, and this rotation is proportional to the thickness of the liquid crystal layer, the gap has to maintained with great accuracy. Even though liquid crystal displays are typically constructed using rigid glass plates, it is wholly impracticable to maintain the necessary spacing with sufficient accuracy over the whole width of the display without resorting to the use of spacers within the liquid crystal layer, since otherwise even modest pressure upon the surface of the display would be sufficient to cause enough change in the gap to produce substantial changes in the appearance of the display.
- the thickness of the spacers used in the present invention may be exactly the same as the thickness of the electrophoretic medium when no pressure is applied thereto.
- the thickness of the spacers may be slightly less than the thickness of the medium so that, when the medium is not under pressure, its thickness is determined by the capsules, but as the pressure thereon is increased and the capsules deform slightly, the layers on either side of the medium come into contact with the spacers, the spacers relieve the stress on the capsules, thereby preventing this stress building up to a level at which capsule rupture may occur.
- the dimension of the spacers parallel to the thickness of the lamina may be from about 0.9 to about 1.0 times this thickness, although a spacer dimension close to 1.0 times this thickness is preferred.
- the spacers may have the form of glass spheres 100 ⁇ m or slightly less in diameter.
- the spacers used in the present invention may be formed from any material capable of providing the necessary stress relief to the capsules when pressure is applied to the electrophoretic medium; it will be appreciated that the choice of spacer material may vary depending upon the application in which the medium is to be employed and thus the type and magnitude of pressures to which the capsules will be exposed.
- the spacers may be formed from a rigid material, for example glass, or from a flexible material, for example a flexible polymer such as polyethylene, provided that the material is not so flexible that it fails to provide the necessary stress relief.
- the spacers may have a variety of shapes; for example, each of the spacers may have substantially the form of a sphere, rod, cone, pyramid, cone or a frustum of a cone or pyramid. Mixtures of spacers of differing shapes may also be used.
- the ratio of spacers to capsules in the present electrophoretic medium may vary widely, depending upon the intended application of the medium. This ratio is, at least in part, a compromise between two competing considerations. If too few spacers are used, certain capsules not close to a spacer may be exposed to undesirable stress levels.
- the spacers since the spacers cannot undergo the changes in optical characteristics which the capsules undergo, the spacers may tend to introduce artifacts into the image produced by the display, and the risk of such artifacts becoming noticeable increases with the number of spacers used.
- the ratio of spacers to capsules will be in the range of from 1 :100 to 1:1,000,000, and preferably in the range of 1 :1, 000 to 1 :100,000.
- the encapsulated electrophoretic medium of the present invention will typically be provided with first and second electrodes disposed on opposed sides of the medium, at least one of the first and second electrodes being light transmissive.
- the electrophoretic display may also comprise first and second substrates disposed on opposed sides of the electrophoretic medium, these first and second substrates being secured to the first and second electrodes respectively; typically, the first and second electrodes are formed on their respective substrates by any convenient type of printing or coating process.
- the first and second electrodes and the first and second substrates are all flexible, so that the entire display is flexible.
- Such a display can be made paper-thin so as to resemble a conventional poster or leaf of a book. The provision of spacers in such a display may be useful to prevent damage to the display if a portion of the display is curved very sharply, as may happen, for example, if the display is being manually manipulated to fit it into a frame or similar structure.
- a touch sensing means disposed on the opposed side of one of the first and second electrodes from the electrophoretic medium, so that the display functions as a touch screen.
- the touch sensing means of a touch screen typically comprises two continuous orthogonal electrodes on two separate transparent substrates, these continuous electrodes acting as an analog voltage divider.
- such a touch sensing means may comprise two arrays of transparent electrodes on separate transparent substrates, for example, a series of parallel row electrodes on one substrate and a series of parallel column electrodes on the other, or a matrix array of electrodes on one substrate and a single continuous electrode on the other.
- the two electrodes or arrays of electrodes lie parallel to one another but are spaced a short distance apart by mechanical spacers, a liquid film or pressurized gas.
- At least the front substrate (that adjacent the user) is made flexible so that application of modest pressure, as from a user's finger on the front substrate, will cause contact between the electrodes (or between at least one electrode in each array), thus enabling associated electronics to generate a signal indicating where on the sensing means the pressure was applied.
- the touch sensing means is affixed to a screen (typically the screen of a cathode ray tube, or much less commonly that of a liquid crystal display) on which images are formed, so that the user appears to be touching the image on the screen.
- Encapsulated electrophoretic displays have substantial advantages over both cathode ray tubes and liquid crystal displays in touch screens. Both cathode ray tubes and conventional liquid crystal displays operate in emission (the liquid crystal displays being back-lit) so that their images become difficult to read in strong sunlight, for example when a drive-up automatic teller machine (ATM) is placed outside a bank. In contrast, electrophoretic displays operate by reflection, so they are readily readable even under the strongest light. Also, electrophoretic displays are much less bulky than cathode ray tubes, an important consideration in ATM's.
- electrophoretic displays used in touch screens may advantageously incorporate spacers in accordance with the present invention to prevent damage to the display when substantial pressure is exerted thereon.
- a touch screen itself requires two electrodes and the electrophoretic display also requires two electrodes, in some cases (depending upon the type of touch sensing means used) it may be possible to reduce the complexity and expense of a touch screen with an electrophoretic display by using only three electrodes.
- the rear electrode of the touch screen is fabricated upon a very thin substrate, it may be possible to use this electrode as both the rear electrode of the touch screen and the front electrode of the electrophoretic display; such a dual-function electrode may conveniently be of the continuous electrode type (i.e., in the form of a single electrode extending across the entire area of the touch screen display).
- a single substrate preferably a flexible plastic film, could be coated on both sides with a continuous layer of conductive material so that this coated substrate serves as both the rear electrode of the touch screen and the front electrode of the electrophoretic display.
- Another application of the present invention may be providing encapsulated electrophoretic media which can be laminated under a wider range of conditions than similar prior art media.
- encapsulated electrophoretic media which can be laminated under a wider range of conditions than similar prior art media.
- This lamination is normally conducted using both heat and pressure, and this combination of heat and pressure can impose substantial stress on the capsules, because in addition to the external pressure imposed by the laminator, the capsules are subject to an internal pressure caused by the thermal expansion of the electrophoretic fluid within the capsules.
- the stresses imposed upon the capsules during the lamination can be reduced, thus widening the range of pressure and/or temperature which can be used. Since the choice of lamination adhesives is limited largely by the temperatures and pressures which can be employed in the lamination, widening the allowable pressure and temperature ranges broadens the range of useable lamination adhesives, and may thus permit the use of adhesives having certain desirable properties (for example, increased durability) which would not otherwise be useable with the electrophoretic medium.
- the spacers will be discrete entities which are mixed among the capsules either before or after the capsules are formed into the capsule layer, as described in more detail below.
- the spacers may also be secured to, or integral with, one of the electrodes or the substrates of the electrophoretic display.
- one or both of the substrates has the form of a flexible plastic film, such a film could bear projection or ridges which could act as spacers.
- projections or ridges could useful taper towards the viewing surface of the display; for example projections on a rear substrate could be frusto- conical or frusto-pyramidal in shape so that when the substrate is printed or coated with the layer of capsules, the capsules will overlay the outer parts of the broad base of the projections or ridges, leaving only the relatively narrow tops of the projections exposed in the final display, thus reducing the possibility of the projections introducing visible artifacts into the image provided by the display.
- the exact method used to incorporate the spacers into the capsule layer may vary, and the optimum method may vary depending upon the number and type of spacers employed.
- the capsule layer is rendered coherent by the provision of a binder, which lies between the capsules and binds them together.
- the capsule layer is formed by printing or coating a mixture of the capsules in the binder on to the surface of a substrate; conveniently, a conductive coating is provided on the substrate prior to the printing or coating so that this conductive coating can act as one of the electrodes of the final display.
- the spacers are admixed with the capsules and the binder, and the resultant mixture is printed or coated on to the surface of the substrate.
- This method is especially suitable for spacers (for example, polymeric spacers) which have a density similar to that of the capsule/binder mixture.
- spacers for example, polymeric spacers
- the usual mixture of capsules and binder is first coated on to the surface of the substrate and thereafter the spacers are dispersed among the capsules.
- a second substrate is laminated to the layer of capsules so that the two substrates lie on opposed sides of this layer.
- This second substrate may bear a conductive layer which acts as the second electrode of the final electrophoretic display.
- a PDED is a two-phase system having a discontinuous phase, which comprises a plurality of discrete droplets of an electrophoretic fluid (as usual, comprising a liquid and at least one particle disposed within the liquid and capable of moving therethrough on application of an electric field to the liquid), and a continuous phase of a polymeric material.
- capsules discrete droplets of electrophoretic fluid within a PDED may be referred to as capsules or microcapsules even though no discrete capsule membrane is associated with each individual droplet. Accordingly, references to "capsules" herein are to be construed as extending to PDED's, which are considered to be subsets of encapsulated electrophoretic displays. Embodiments of the invention will now be described, though by way of illustration only, with reference to the accompanying drawings which, as already stated, show schematic cross-sections through three different encapsulated electrophoretic displays of the present invention, these cross-sections being taken perpendicular to the plane of the electrodes of the displays.
- FIG. 1 of the accompanying drawings shows an encapsulated electrophoretic display (generally designated 100) of the present invention.
- This display comprises a transparent front substrate 102 coated with a continuous transparent front electrode 104 which may, for example, be formed from indium tin oxide (ITO).
- ITO indium tin oxide
- the exposed (outer) surface 106 (the top surface as illustrated in Figure 1) of the front substrate 102 acts as a viewing surface through which an observer views the display 100; if, for example, the display 100 is to be used as part of a touch screen display, the touch sensing means of the display would be mounted on the surface 106.
- the display 100 further comprises a rear substrate 108 coated with a plurality of discrete rear electrodes 110, which define individual pixels of the display 100; only two of the rear electrodes 110 are shown in Figure 1. Between the electrodes 104 and 110 are disposed a plurality of microcapsules (generally designated 112); each of these microcapsules comprises a capsule wall enclosing a colored liquid 114 in which are suspended charged colored particles 116 of a color different from the that of the liquid 114.
- the microcapsules 112 are shown as spherical in the Figures, although in practice it is preferred that they be of the non-spherical shapes described in commonly- owned U.S. Patent No. 6,067,185.
- microcapsules 112 are sufficient, by themselves, to maintain the spacing between the electrodes 104 and 110. However, for reasons already explained above, there are dispersed among the microcapsules 112 a plurality of spacers 118 (only one of which is shown in Figure 1) having the form of glass spheres of a diameter essentially the same as that of the microcapsules 112.
- the individual microcapsules 112 are normally bound to each other and to the electrodes 104 and 110 by a polymeric binder.
- This binder is omitted from Figures 1, 2 and 3 for ease of illustration and comprehension.
- FIG 2 illustrates a second encapsulated electrophoretic display (generally designated 200) of the present invention; this display 200 closely resembles the display 100 shown in Figure 1 , except that the spherical spacers 118 are replaced by cylindrical rod spacers 218, only one of which is shown in Figure 2.
- the spacers 218 may be formed of glass, polymer or other materials.
- FIG 3 illustrates a third encapsulated electrophoretic display (generally designated 300) of the present invention; this display 300 closely resembles the displays 100 and 200 shown in Figures 1 and 2 respectively, except that the spacers 118 and 218 are replaced by frusto-conical spacers 318 (only one of which is shown in Figure 3), which are integral with the rear substrate 108. It should be noted that the microcapsules 112 on either side of the spacer 318 overlap part of the base of the spacer, thus reducing the risk that the spacer 318 will introduce any visible artifact into the display 300.
- the upper end (in Figure 3) of the spacer 318 is spaced slightly from the front electrode 104, thus allowing the front substrate 102, the front electrode 104 and the microcapsules 112 to deform slightly before the front electrode 104 contacts the spacer 318.
- the encapsulated electrophoretic displays of the present invention resemble prior art encapsulated electrophoretic displays, and hence the present displays can make use of any known materials and processes for the production of such displays, as described, for example, in U.S. Patents Nos. 6,017,584 and 6,067,185, and in copending commonly-assigned Application Serial No. 09/413,444, filed October 6, 1999, and the corresponding International Application PCT/US99/23313 (Publication No. WO 00/20922); the entire disclosures of all these patents and applications are herein incorporated by reference. Accordingly, the reader is referred to these patents and applications for details of such materials and processes.
- acacia (Aldrich) is dissolved in 100.0 g of water with stirring at room temperature for 30 minutes. The resulting mixture is decanted into two 50 mL polypropylene centrifuge tubes and centrifuged at about 2000 rpm for 10 minutes to remove insoluble material. 66 g of the purified solution is then decanted into a 500 mL non-baffled jacketed reactor, and the solution is then heated to 40°C. A six-blade (vertical geometry) paddle agitator is then placed just beneath the surface of the liquid. While agitating the solution at 200 rpm, 6 g of gelatin (300 bloom, type A, Aldrich) is carefully added over about 20 seconds in order to avoid lumps. Agitation is then reduced to 50 rpm to reduce foaming. The resulting solution is then stirred for 30 minutes. c. Encapsulation
- the oil phase prepared as described above, is slowly poured over about 15 seconds into the aqueous phase, also prepared as described above.
- the resulting oil/water emulsion is allowed to emulsify for 20 minutes.
- To this emulsion is slowly added over about 20 seconds 200 g of water that has been preheated to 40°C.
- the pH is then reduced to 4.4 over five minutes with a 10% acetic acid solution (acetic acid from Aldrich).
- the pH is monitored using a pH meter that was previously calibrated with pH 7.0 and pH 4.0 buffer solutions.
- the resultant mixture is stirred for 40 minutes.
- 150 g of water that has been preheated to 40°C are then added, and the contents of the reactor are then cooled to 10°C.
- the resulting capsule slurry from above is mixed with the aqueous urethane binder NeoRez R-9320 (Zeneca Resins, Wilmington, MA) at a ratio of one part binder to 10 parts capsules.
- NeoRez R-9320 Zeneca Resins, Wilmington, MA
- 100 ⁇ m glass spheres are also mixed into the slurry binder mixture at a ratio of one spacer to 10,000 capsules.
- the resulting mixture is then coated using a doctor blade in an approximately 100-125 ⁇ m thick sheet of indium-tin oxide sputtered polyester film. The blade gap of the doctor blade is controlled at 0.18 mm so as to lay down a single layer of capsules.
- the coated film is then dried in hot air (60°C) for 30 minutes.
- the dried film is hot laminated at 60°C to a backplane comprising an approximately 100-25 ⁇ m thick sheet of polyester screen printed with thick film silver and dielectric inks with a pressure of 15 psi in a hot roll laminate from Cheminstruments, Fairfield, OH.
- the backplane is connected to the film using an anisotropic tape.
- the conductive areas form addressable areas of the resulting display. ii.
- aqueous binder comprising a mixture of NeoRez R-966 (Zeneca Resins) and a 20% solution of Airvol 203 (a poly(vinyl alcohol), Airvol Industries, Allentown, PA) at a ratio of one part Airvol 203 solution to one part NeoRez R-966 to five parts capsules.
- Airvol 203 a poly(vinyl alcohol), Airvol Industries, Allentown, PA
- 100 ⁇ m glass spheres are also mixed into the slurry binder mixture at a ratio of one spacer to 10,000 capsules.
- the resulting mixture is then coated using a doctor blade in an approximately 100-125 ⁇ m thick sheet of indium-tin oxide sputtered polyester film. The blade gap of the doctor blade is controlled at 0.18 mm so as to lay down a single layer of capsules.
- the coated film is then dried in hot air (60°C) for 30 minutes.
- a thick film silver ink is then printed directly onto the back of the dried film and allowed to cure at 60°C.
- the conductive areas form the addressable areas of the display.
- Example 2 The following is an example of the preparation of microcapsules by in situ polymerization.
- the encapsulated electrophoretic displays of the present invention provide flexible, reflective displays that can be manufactured easily and consume little power (or no power in the case of bistable displays in certain states). Such displays, therefore, can be incorporated into a variety of applications and can take on many forms.
- the electrophoretic particles can be generally stable. Additionally, providing a subsequent electric charge can alter a prior configuration of particles.
- Such displays may include, for example, a plurality of anisotropic particles and a plurality of second particles in a suspending fluid. Application of a first electric field may cause the anisotropic particles to assume a specific orientation and present an optical property.
- an encapsulated electrophoretic display can be constructed so that the optical state of the display is stable for some length of time. When the display has two states that are stable in this manner, the display is bistable, within the meaning of that term as previously defined; if more than two states of the display are stable, then the display is multistable. However, whether a display is effectively bistable state depends upon the display's application.
- a slowly decaying optical state can be effectively bistable if the optical state is substantially unchanged over the required viewing time. For example, in a display that is updated every few minutes, a display image that is stable for hours or days is effectively bistable for a particular application.
- an encapsulated electrophoretic display is bistable, and its degree of bistability, can be controlled through appropriate chemical modification of the electrophoretic particles, the suspending fluid, the capsule, and binder materials.
- An encapsulated electrophoretic display may take many forms.
- the capsules of such a display may be of any size or shape.
- the capsules may, for example, be spherical and may have diameters in the millimeter range or the micron range, but are preferably from about ten to about a few hundred microns.
- the particles within the capsules of such a display may be colored, luminescent, light-absorbing or transparent, for example.
- the encapsulated electrophoretic media and displays of the present invention preserve all the advantages of prior art encapsulated electrophoretic media and displays, while rendering the encapsulated electrophoretic medium less susceptible to damage from pressure exerted upon the medium.
- the media and displays of the present invention may be useful in applications where prior art encapsulated electrophoretic media and displays cannot be used because of their susceptibility to pressure damage.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT00943302T ATE502320T1 (en) | 1999-07-01 | 2000-06-29 | ELECTROPHORETIC MEDIUM PROVIDED WITH SPACERS |
AU57792/00A AU5779200A (en) | 1999-07-01 | 2000-06-29 | Electrophoretic medium provided with spacers |
DE60045738T DE60045738D1 (en) | 1999-07-01 | 2000-06-29 | ELECTROPHORETIC MEDIA PROVIDE SPACING ELEMENTS |
JP2001508641A JP5394601B2 (en) | 1999-07-01 | 2000-06-29 | Electrophoretic medium provided with spacer |
EP00943302A EP1192504B1 (en) | 1999-07-01 | 2000-06-29 | Electrophoretic medium provided with spacers |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14200399P | 1999-07-01 | 1999-07-01 | |
US60/142,003 | 1999-07-01 |
Publications (2)
Publication Number | Publication Date |
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WO2001002899A2 true WO2001002899A2 (en) | 2001-01-11 |
WO2001002899A3 WO2001002899A3 (en) | 2001-05-25 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/US2000/017944 WO2001002899A2 (en) | 1999-07-01 | 2000-06-29 | Electrophoretic medium provided with spacers |
Country Status (7)
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US (1) | US6392786B1 (en) |
EP (1) | EP1192504B1 (en) |
JP (2) | JP5394601B2 (en) |
AT (1) | ATE502320T1 (en) |
AU (1) | AU5779200A (en) |
DE (1) | DE60045738D1 (en) |
WO (1) | WO2001002899A2 (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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Families Citing this family (283)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7999787B2 (en) | 1995-07-20 | 2011-08-16 | E Ink Corporation | Methods for driving electrophoretic displays using dielectrophoretic forces |
US8139050B2 (en) | 1995-07-20 | 2012-03-20 | E Ink Corporation | Addressing schemes for electronic displays |
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US7848006B2 (en) | 1995-07-20 | 2010-12-07 | E Ink Corporation | Electrophoretic displays with controlled amounts of pigment |
US8040594B2 (en) | 1997-08-28 | 2011-10-18 | E Ink Corporation | Multi-color electrophoretic displays |
US20030102858A1 (en) * | 1998-07-08 | 2003-06-05 | E Ink Corporation | Method and apparatus for determining properties of an electrophoretic display |
US20020113770A1 (en) | 1998-07-08 | 2002-08-22 | Joseph M. Jacobson | Methods for achieving improved color in microencapsulated electrophoretic devices |
US7126569B2 (en) * | 1999-03-23 | 2006-10-24 | Minolta Co., Ltd. | Liquid crystal display device |
US7119772B2 (en) * | 1999-04-30 | 2006-10-10 | E Ink Corporation | Methods for driving bistable electro-optic displays, and apparatus for use therein |
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US8115729B2 (en) | 1999-05-03 | 2012-02-14 | E Ink Corporation | Electrophoretic display element with filler particles |
US8009348B2 (en) | 1999-05-03 | 2011-08-30 | E Ink Corporation | Machine-readable displays |
US7038655B2 (en) * | 1999-05-03 | 2006-05-02 | E Ink Corporation | Electrophoretic ink composed of particles with field dependent mobilities |
US6524153B1 (en) * | 1999-05-14 | 2003-02-25 | Canon Kabushiki Kaisha | Process for producing display device |
EP1196814A1 (en) | 1999-07-21 | 2002-04-17 | E Ink Corporation | Use of a storage capacitor to enhance the performance of an active matrix driven electronic display |
JP2001092388A (en) * | 1999-07-21 | 2001-04-06 | Fuji Xerox Co Ltd | Method of manufacturing image display medium |
US6879314B1 (en) * | 1999-09-28 | 2005-04-12 | Brother International Corporation | Methods and apparatus for subjecting an element to an electrical field |
US6933098B2 (en) | 2000-01-11 | 2005-08-23 | Sipix Imaging Inc. | Process for roll-to-roll manufacture of a display by synchronized photolithographic exposure on a substrate web |
US6672921B1 (en) | 2000-03-03 | 2004-01-06 | Sipix Imaging, Inc. | Manufacturing process for electrophoretic display |
US6930818B1 (en) | 2000-03-03 | 2005-08-16 | Sipix Imaging, Inc. | Electrophoretic display and novel process for its manufacture |
US6865012B2 (en) | 2000-03-03 | 2005-03-08 | Sipix Imaging, Inc. | Electrophoretic display and novel process for its manufacture |
US6833943B2 (en) | 2000-03-03 | 2004-12-21 | Sipix Imaging, Inc. | Electrophoretic display and novel process for its manufacture |
US6788449B2 (en) | 2000-03-03 | 2004-09-07 | Sipix Imaging, Inc. | Electrophoretic display and novel process for its manufacture |
US7715088B2 (en) | 2000-03-03 | 2010-05-11 | Sipix Imaging, Inc. | Electrophoretic display |
US7052571B2 (en) * | 2000-03-03 | 2006-05-30 | Sipix Imaging, Inc. | Electrophoretic display and process for its manufacture |
US6885495B2 (en) * | 2000-03-03 | 2005-04-26 | Sipix Imaging Inc. | Electrophoretic display with in-plane switching |
US20070237962A1 (en) * | 2000-03-03 | 2007-10-11 | Rong-Chang Liang | Semi-finished display panels |
US7233429B2 (en) * | 2000-03-03 | 2007-06-19 | Sipix Imaging, Inc. | Electrophoretic display |
US6831770B2 (en) | 2000-03-03 | 2004-12-14 | Sipix Imaging, Inc. | Electrophoretic display and novel process for its manufacture |
US7557981B2 (en) * | 2000-03-03 | 2009-07-07 | Sipix Imaging, Inc. | Electrophoretic display and process for its manufacture |
US6829078B2 (en) * | 2000-03-03 | 2004-12-07 | Sipix Imaging Inc. | Electrophoretic display and novel process for its manufacture |
US7158282B2 (en) * | 2000-03-03 | 2007-01-02 | Sipix Imaging, Inc. | Electrophoretic display and novel process for its manufacture |
US7408696B2 (en) | 2000-03-03 | 2008-08-05 | Sipix Imaging, Inc. | Three-dimensional electrophoretic displays |
US7893435B2 (en) | 2000-04-18 | 2011-02-22 | E Ink Corporation | Flexible electronic circuits and displays including a backplane comprising a patterned metal foil having a plurality of apertures extending therethrough |
TWI224722B (en) * | 2000-05-19 | 2004-12-01 | Asulab Sa | Electronic device for generating and displaying an item of information |
US20020021911A1 (en) * | 2000-06-09 | 2002-02-21 | Masahiko Matsuura | Image forming apparatus |
JP2001356650A (en) * | 2000-06-12 | 2001-12-26 | Minolta Co Ltd | Display method for information on image forming device, and image forming device |
US6816147B2 (en) * | 2000-08-17 | 2004-11-09 | E Ink Corporation | Bistable electro-optic display, and method for addressing same |
US7289083B1 (en) * | 2000-11-30 | 2007-10-30 | Palm, Inc. | Multi-sided display for portable computer |
US7688315B1 (en) | 2000-11-30 | 2010-03-30 | Palm, Inc. | Proximity input detection system for an electronic device |
AU2002230610A1 (en) * | 2000-12-05 | 2002-06-18 | E-Ink Corporation | Portable eclectronic apparatus with additional electro-optical display |
US8282762B2 (en) * | 2001-01-11 | 2012-10-09 | Sipix Imaging, Inc. | Transmissive or reflective liquid crystal display and process for its manufacture |
US6795138B2 (en) | 2001-01-11 | 2004-09-21 | Sipix Imaging, Inc. | Transmissive or reflective liquid crystal display and novel process for its manufacture |
US7466961B1 (en) * | 2004-12-13 | 2008-12-16 | Palm, Inc. | Compact palmtop computer system and wireless telephone with foldable dual-sided display |
US7348964B1 (en) * | 2001-05-22 | 2008-03-25 | Palm, Inc. | Single-piece top surface display layer and integrated front cover for an electronic device |
US8384674B1 (en) | 2001-01-30 | 2013-02-26 | Hewlett-Packard Development Company, L.P. | Integrated enclosure/touch screen assembly |
US6717716B2 (en) * | 2001-02-15 | 2004-04-06 | Seiko Epson Corporation | Method of manufacturing electrophoretic device and method of manufacturing electronic apparatus |
JP4051956B2 (en) * | 2001-02-22 | 2008-02-27 | セイコーエプソン株式会社 | Method for manufacturing electrophoresis apparatus and method for manufacturing electronic apparatus |
US6650463B2 (en) * | 2001-03-13 | 2003-11-18 | Seiko Epson Corporation | Electrophoretic display device |
JP4198999B2 (en) | 2001-03-13 | 2008-12-17 | イー インク コーポレイション | Equipment for displaying drawings |
US6570700B2 (en) | 2001-03-14 | 2003-05-27 | 3M Innovative Properties Company | Microstructures with assisting optical elements to enhance an optical effect |
US6700695B2 (en) | 2001-03-14 | 2004-03-02 | 3M Innovative Properties Company | Microstructured segmented electrode film for electronic displays |
US7057599B2 (en) * | 2001-03-14 | 2006-06-06 | 3M Innovative Properties Company | Microstructures with assisting optical lenses |
US6577432B2 (en) * | 2001-03-14 | 2003-06-10 | 3M Innovative Properties Company | Post and pocket microstructures containing moveable particles having optical effects |
JP3819721B2 (en) * | 2001-03-21 | 2006-09-13 | 株式会社東芝 | Electrophoretic display device |
US20050156340A1 (en) | 2004-01-20 | 2005-07-21 | E Ink Corporation | Preparation of capsules |
US8390918B2 (en) | 2001-04-02 | 2013-03-05 | E Ink Corporation | Electrophoretic displays with controlled amounts of pigment |
US7679814B2 (en) | 2001-04-02 | 2010-03-16 | E Ink Corporation | Materials for use in electrophoretic displays |
US6580545B2 (en) * | 2001-04-19 | 2003-06-17 | E Ink Corporation | Electrochromic-nanoparticle displays |
US6753067B2 (en) | 2001-04-23 | 2004-06-22 | Sipix Imaging, Inc. | Microcup compositions having improved flexure resistance and release properties |
AU2002259077A1 (en) * | 2001-04-30 | 2002-11-11 | Lumimove, Inc. | Electroluminescent devices fabricated with encapsulated light emitting polymer particles |
US6870661B2 (en) * | 2001-05-15 | 2005-03-22 | E Ink Corporation | Electrophoretic displays containing magnetic particles |
US6992659B2 (en) | 2001-05-22 | 2006-01-31 | Palmone, Inc. | High transparency integrated enclosure touch screen assembly for a portable hand held device |
US7142195B2 (en) | 2001-06-04 | 2006-11-28 | Palm, Inc. | Interface for interaction with display visible from both sides |
US7205355B2 (en) * | 2001-06-04 | 2007-04-17 | Sipix Imaging, Inc. | Composition and process for the manufacture of an improved electrophoretic display |
US20020188053A1 (en) * | 2001-06-04 | 2002-12-12 | Sipix Imaging, Inc. | Composition and process for the sealing of microcups in roll-to-roll display manufacturing |
US8361356B2 (en) * | 2001-06-04 | 2013-01-29 | Sipix Imaging, Inc. | Composition and process for the sealing of microcups in roll-to-roll display manufacturing |
US6677926B2 (en) * | 2001-06-11 | 2004-01-13 | Xerox Corporation | Electrophoretic display device |
US6982178B2 (en) | 2002-06-10 | 2006-01-03 | E Ink Corporation | Components and methods for use in electro-optic displays |
AU2002354672A1 (en) * | 2001-07-09 | 2003-01-29 | E Ink Corporation | Electro-optical display having a lamination adhesive layer |
US7110163B2 (en) * | 2001-07-09 | 2006-09-19 | E Ink Corporation | Electro-optic display and lamination adhesive for use therein |
ATE349028T1 (en) * | 2001-07-09 | 2007-01-15 | E Ink Corp | ELECTRO-OPTICAL DISPLAY AND ADHESIVE COMPOSITION |
US7535624B2 (en) | 2001-07-09 | 2009-05-19 | E Ink Corporation | Electro-optic display and materials for use therein |
TW527529B (en) * | 2001-07-27 | 2003-04-11 | Sipix Imaging Inc | An improved electrophoretic display with color filters |
US6819471B2 (en) * | 2001-08-16 | 2004-11-16 | E Ink Corporation | Light modulation by frustration of total internal reflection |
US7492505B2 (en) | 2001-08-17 | 2009-02-17 | Sipix Imaging, Inc. | Electrophoretic display with dual mode switching |
US7038670B2 (en) * | 2002-08-16 | 2006-05-02 | Sipix Imaging, Inc. | Electrophoretic display with dual mode switching |
TW550529B (en) * | 2001-08-17 | 2003-09-01 | Sipix Imaging Inc | An improved electrophoretic display with dual-mode switching |
TW539928B (en) * | 2001-08-20 | 2003-07-01 | Sipix Imaging Inc | An improved transflective electrophoretic display |
JP4007119B2 (en) * | 2001-08-23 | 2007-11-14 | セイコーエプソン株式会社 | Method for manufacturing electrophoresis apparatus |
TWI308231B (en) * | 2001-08-28 | 2009-04-01 | Sipix Imaging Inc | Electrophoretic display |
TW573204B (en) * | 2001-09-12 | 2004-01-21 | Sipix Imaging Inc | An improved electrophoretic display with gating electrodes |
CN1198174C (en) * | 2001-09-13 | 2005-04-20 | 希毕克斯影像有限公司 | 3-D electrophoresis display |
US6825970B2 (en) * | 2001-09-14 | 2004-11-30 | E Ink Corporation | Methods for addressing electro-optic materials |
US7335419B2 (en) * | 2001-09-24 | 2008-02-26 | Shaun Azari | System and method for energy-conserving roofing |
US6778165B2 (en) * | 2001-10-15 | 2004-08-17 | Hewlett-Packard Development Company, L.P. | Particle display device using bistable molecular monolayers |
TWI229763B (en) | 2001-10-29 | 2005-03-21 | Sipix Imaging Inc | An improved electrophoretic display with holding electrodes |
JP4092903B2 (en) * | 2001-11-05 | 2008-05-28 | セイコーエプソン株式会社 | Electrophoresis device, method of manufacturing electrophoresis device, electronic device |
US8125501B2 (en) | 2001-11-20 | 2012-02-28 | E Ink Corporation | Voltage modulated driver circuits for electro-optic displays |
US8558783B2 (en) | 2001-11-20 | 2013-10-15 | E Ink Corporation | Electro-optic displays with reduced remnant voltage |
US9412314B2 (en) | 2001-11-20 | 2016-08-09 | E Ink Corporation | Methods for driving electro-optic displays |
US9530363B2 (en) | 2001-11-20 | 2016-12-27 | E Ink Corporation | Methods and apparatus for driving electro-optic displays |
US7528822B2 (en) * | 2001-11-20 | 2009-05-05 | E Ink Corporation | Methods for driving electro-optic displays |
US8593396B2 (en) | 2001-11-20 | 2013-11-26 | E Ink Corporation | Methods and apparatus for driving electro-optic displays |
US7952557B2 (en) | 2001-11-20 | 2011-05-31 | E Ink Corporation | Methods and apparatus for driving electro-optic displays |
US7852430B1 (en) | 2001-11-29 | 2010-12-14 | Palm, Inc. | Light guide spacers for backlighting a reflective display |
US6529313B1 (en) * | 2002-01-16 | 2003-03-04 | Xerox Corporation | Electrophoretic displays, display fluids for use therein, and methods of displaying images |
US6574034B1 (en) * | 2002-01-16 | 2003-06-03 | Xerox Corporation | Electrophoretic displays, display fluids for use therein, and methods of displaying images |
US6525866B1 (en) * | 2002-01-16 | 2003-02-25 | Xerox Corporation | Electrophoretic displays, display fluids for use therein, and methods of displaying images |
US6950220B2 (en) * | 2002-03-18 | 2005-09-27 | E Ink Corporation | Electro-optic displays, and methods for driving same |
JP2005524110A (en) * | 2002-04-24 | 2005-08-11 | イー−インク コーポレイション | Electronic display device |
US8002948B2 (en) * | 2002-04-24 | 2011-08-23 | Sipix Imaging, Inc. | Process for forming a patterned thin film structure on a substrate |
TWI240842B (en) * | 2002-04-24 | 2005-10-01 | Sipix Imaging Inc | Matrix driven electrophoretic display with multilayer back plane |
US7223672B2 (en) | 2002-04-24 | 2007-05-29 | E Ink Corporation | Processes for forming backplanes for electro-optic displays |
US7972472B2 (en) * | 2002-04-24 | 2011-07-05 | Sipix Imaging, Inc. | Process for forming a patterned thin film structure for in-mold decoration |
TWI268813B (en) * | 2002-04-24 | 2006-12-21 | Sipix Imaging Inc | Process for forming a patterned thin film conductive structure on a substrate |
US7190008B2 (en) | 2002-04-24 | 2007-03-13 | E Ink Corporation | Electro-optic displays, and components for use therein |
US7156945B2 (en) * | 2002-04-24 | 2007-01-02 | Sipix Imaging, Inc. | Process for forming a patterned thin film structure for in-mold decoration |
US7261920B2 (en) * | 2002-04-24 | 2007-08-28 | Sipix Imaging, Inc. | Process for forming a patterned thin film structure on a substrate |
US6958848B2 (en) * | 2002-05-23 | 2005-10-25 | E Ink Corporation | Capsules, materials for use therein and electrophoretic media and displays containing such capsules |
TW583497B (en) * | 2002-05-29 | 2004-04-11 | Sipix Imaging Inc | Electrode and connecting designs for roll-to-roll format flexible display manufacturing |
US8049947B2 (en) | 2002-06-10 | 2011-11-01 | E Ink Corporation | Components and methods for use in electro-optic displays |
US9470950B2 (en) | 2002-06-10 | 2016-10-18 | E Ink Corporation | Electro-optic displays, and processes for the production thereof |
US7843621B2 (en) | 2002-06-10 | 2010-11-30 | E Ink Corporation | Components and testing methods for use in the production of electro-optic displays |
US7110164B2 (en) * | 2002-06-10 | 2006-09-19 | E Ink Corporation | Electro-optic displays, and processes for the production thereof |
US7583427B2 (en) | 2002-06-10 | 2009-09-01 | E Ink Corporation | Components and methods for use in electro-optic displays |
US8363299B2 (en) | 2002-06-10 | 2013-01-29 | E Ink Corporation | Electro-optic displays, and processes for the production thereof |
US7554712B2 (en) | 2005-06-23 | 2009-06-30 | E Ink Corporation | Edge seals for, and processes for assembly of, electro-optic displays |
US7649674B2 (en) | 2002-06-10 | 2010-01-19 | E Ink Corporation | Electro-optic display with edge seal |
US20080024482A1 (en) | 2002-06-13 | 2008-01-31 | E Ink Corporation | Methods for driving electro-optic displays |
US20040031167A1 (en) * | 2002-06-13 | 2004-02-19 | Stein Nathan D. | Single wafer method and apparatus for drying semiconductor substrates using an inert gas air-knife |
CN101373581B (en) | 2002-06-13 | 2014-07-16 | 伊英克公司 | Methods for driving electro-optic displays |
US7361413B2 (en) * | 2002-07-29 | 2008-04-22 | Lumimove, Inc. | Electroluminescent device and methods for its production and use |
US7029763B2 (en) * | 2002-07-29 | 2006-04-18 | Lumimove, Inc. | Light-emitting phosphor particles and electroluminescent devices employing same |
TWI315439B (en) * | 2002-07-30 | 2009-10-01 | Sipix Imaging Inc | Novel microencapsulation processes and composition for electrophoretic displays |
US7271947B2 (en) | 2002-08-16 | 2007-09-18 | Sipix Imaging, Inc. | Electrophoretic display with dual-mode switching |
US7038656B2 (en) * | 2002-08-16 | 2006-05-02 | Sipix Imaging, Inc. | Electrophoretic display with dual-mode switching |
US7839564B2 (en) | 2002-09-03 | 2010-11-23 | E Ink Corporation | Components and methods for use in electro-optic displays |
WO2004023202A1 (en) * | 2002-09-03 | 2004-03-18 | E Ink Corporation | Electrophoretic medium with gaseous suspending fluid |
JP2005537519A (en) | 2002-09-03 | 2005-12-08 | イー−インク コーポレイション | Electro-optic display |
FI113501B (en) * | 2002-09-03 | 2004-04-30 | Techsign Oy | Variable content traffic sign |
JP4366059B2 (en) * | 2002-09-10 | 2009-11-18 | キヤノン株式会社 | Electrophoretic display device |
CN100517449C (en) * | 2002-10-16 | 2009-07-22 | 皇家飞利浦电子股份有限公司 | A display apparatus with a display device and method of driving the display device |
US20130063333A1 (en) | 2002-10-16 | 2013-03-14 | E Ink Corporation | Electrophoretic displays |
TW200428082A (en) * | 2002-11-15 | 2004-12-16 | Matsushita Electric Ind Co Ltd | Display device and method for driving same |
TWI297089B (en) * | 2002-11-25 | 2008-05-21 | Sipix Imaging Inc | A composition for the preparation of microcups used in a liquid crystal display, a liquid crystal display comprising two or more layers of microcup array and process for its manufacture |
US8023071B2 (en) * | 2002-11-25 | 2011-09-20 | Sipix Imaging, Inc. | Transmissive or reflective liquid crystal display |
US20170052422A1 (en) * | 2002-11-26 | 2017-02-23 | E Ink Corporation | Flexible electronic circuits and displays |
CN101118362A (en) * | 2002-12-16 | 2008-02-06 | 伊英克公司 | Backplanes for electro-optic displays |
US6922276B2 (en) * | 2002-12-23 | 2005-07-26 | E Ink Corporation | Flexible electro-optic displays |
US7015893B2 (en) * | 2003-01-31 | 2006-03-21 | Motorola, Inc. | Photoluminescent electrophoretic display |
US6987603B2 (en) * | 2003-01-31 | 2006-01-17 | E Ink Corporation | Construction of electrophoretic displays |
US7339715B2 (en) * | 2003-03-25 | 2008-03-04 | E Ink Corporation | Processes for the production of electrophoretic displays |
US7910175B2 (en) | 2003-03-25 | 2011-03-22 | E Ink Corporation | Processes for the production of electrophoretic displays |
ATE485535T1 (en) * | 2003-03-27 | 2010-11-15 | E Ink Corp | ELECTRO-OPTICAL ASSEMBLY |
US10726798B2 (en) | 2003-03-31 | 2020-07-28 | E Ink Corporation | Methods for operating electro-optic displays |
EP1623405B1 (en) * | 2003-05-02 | 2015-07-29 | E Ink Corporation | Electrophoretic displays |
US8174490B2 (en) | 2003-06-30 | 2012-05-08 | E Ink Corporation | Methods for driving electrophoretic displays |
EP1639574B1 (en) | 2003-06-30 | 2015-04-22 | E Ink Corporation | Methods for driving electro-optic displays |
WO2005010598A2 (en) | 2003-07-24 | 2005-02-03 | E Ink Corporation | Electro-optic displays |
WO2005020199A2 (en) * | 2003-08-19 | 2005-03-03 | E Ink Corporation | Methods for controlling electro-optic displays |
JP4506131B2 (en) * | 2003-09-05 | 2010-07-21 | セイコーエプソン株式会社 | Electrophoretic display device manufacturing method, electrophoretic display device, and electronic apparatus |
EP1665214A4 (en) * | 2003-09-19 | 2008-03-19 | E Ink Corp | Methods for reducing edge effects in electro-optic displays |
ATE405916T1 (en) * | 2003-10-08 | 2008-09-15 | E Ink Corp | ELECTRICAL WETTING DISPLAYS |
US8319759B2 (en) | 2003-10-08 | 2012-11-27 | E Ink Corporation | Electrowetting displays |
US8177942B2 (en) | 2003-11-05 | 2012-05-15 | E Ink Corporation | Electro-optic displays, and materials for use therein |
US20110164301A1 (en) | 2003-11-05 | 2011-07-07 | E Ink Corporation | Electro-optic displays, and materials for use therein |
EP1680774B9 (en) | 2003-11-05 | 2018-05-16 | E Ink Corporation | Electrophoretic medium for electro-optic displays |
US7672040B2 (en) | 2003-11-05 | 2010-03-02 | E Ink Corporation | Electro-optic displays, and materials for use therein |
US7551346B2 (en) | 2003-11-05 | 2009-06-23 | E Ink Corporation | Electro-optic displays, and materials for use therein |
US8928562B2 (en) * | 2003-11-25 | 2015-01-06 | E Ink Corporation | Electro-optic displays, and methods for driving same |
JP4790622B2 (en) | 2003-11-26 | 2011-10-12 | イー インク コーポレイション | Low residual voltage electro-optic display |
US7206119B2 (en) * | 2003-12-31 | 2007-04-17 | E Ink Corporation | Electro-optic displays, and method for driving same |
US7075703B2 (en) * | 2004-01-16 | 2006-07-11 | E Ink Corporation | Process for sealing electro-optic displays |
US7388572B2 (en) * | 2004-02-27 | 2008-06-17 | E Ink Corporation | Backplanes for electro-optic displays |
US7492339B2 (en) | 2004-03-26 | 2009-02-17 | E Ink Corporation | Methods for driving bistable electro-optic displays |
US8289250B2 (en) * | 2004-03-31 | 2012-10-16 | E Ink Corporation | Methods for driving electro-optic displays |
US20050253777A1 (en) * | 2004-05-12 | 2005-11-17 | E Ink Corporation | Tiled displays and methods for driving same |
JP4613517B2 (en) * | 2004-05-26 | 2011-01-19 | ブラザー工業株式会社 | Electrophoretic display device |
JP4764069B2 (en) * | 2004-06-04 | 2011-08-31 | キヤノン株式会社 | Particle movement type display device |
US20080136774A1 (en) | 2004-07-27 | 2008-06-12 | E Ink Corporation | Methods for driving electrophoretic displays using dielectrophoretic forces |
US11250794B2 (en) | 2004-07-27 | 2022-02-15 | E Ink Corporation | Methods for driving electrophoretic displays using dielectrophoretic forces |
WO2006015044A1 (en) * | 2004-07-27 | 2006-02-09 | E Ink Corporation | Electro-optic displays |
US7453445B2 (en) | 2004-08-13 | 2008-11-18 | E Ink Corproation | Methods for driving electro-optic displays |
JP2008521065A (en) * | 2005-01-26 | 2008-06-19 | イー インク コーポレイション | Electrophoretic display using gaseous fluid |
US7692635B2 (en) * | 2005-02-28 | 2010-04-06 | Sony Corporation | User interface with thin display device |
US7352501B2 (en) * | 2005-03-31 | 2008-04-01 | Xerox Corporation | Electrophoretic caps prepared from encapsulated electrophoretic particles |
US20070085837A1 (en) * | 2005-10-17 | 2007-04-19 | Eastman Kodak Company | Touch input device with display front |
KR101269304B1 (en) | 2005-10-18 | 2013-05-29 | 이 잉크 코포레이션 | Components for electro-optic displays |
US20080043318A1 (en) | 2005-10-18 | 2008-02-21 | E Ink Corporation | Color electro-optic displays, and processes for the production thereof |
US20070091417A1 (en) * | 2005-10-25 | 2007-04-26 | E Ink Corporation | Electrophoretic media and displays with improved binder |
JP2007147829A (en) * | 2005-11-25 | 2007-06-14 | Brother Ind Ltd | Method for manufacturing partition wall and substrate in electrophoretic display medium, and electrophoretic display medium |
US8390301B2 (en) | 2006-03-08 | 2013-03-05 | E Ink Corporation | Electro-optic displays, and materials and methods for production thereof |
US7843624B2 (en) | 2006-03-08 | 2010-11-30 | E Ink Corporation | Electro-optic displays, and materials and methods for production thereof |
TWI350793B (en) | 2006-03-08 | 2011-10-21 | E Ink Corp | Methods for production of electro-optic displays |
US8610988B2 (en) | 2006-03-09 | 2013-12-17 | E Ink Corporation | Electro-optic display with edge seal |
US7952790B2 (en) * | 2006-03-22 | 2011-05-31 | E Ink Corporation | Electro-optic media produced using ink jet printing |
US8585816B2 (en) * | 2006-05-16 | 2013-11-19 | Cabot Corporation | Low viscosity, high particulate loading dispersions |
US8728223B2 (en) | 2006-05-16 | 2014-05-20 | Cabot Corporation | Low viscosity, high particulate loading dispersions |
US7903319B2 (en) * | 2006-07-11 | 2011-03-08 | E Ink Corporation | Electrophoretic medium and display with improved image stability |
US8018640B2 (en) * | 2006-07-13 | 2011-09-13 | E Ink Corporation | Particles for use in electrophoretic displays |
US7492497B2 (en) | 2006-08-02 | 2009-02-17 | E Ink Corporation | Multi-layer light modulator |
US7890337B2 (en) * | 2006-08-25 | 2011-02-15 | Jermyn & Associates, Llc | Anonymity-ensured system for providing affinity-based deliverables to library patrons |
US7986450B2 (en) | 2006-09-22 | 2011-07-26 | E Ink Corporation | Electro-optic display and materials for use therein |
US7477444B2 (en) * | 2006-09-22 | 2009-01-13 | E Ink Corporation & Air Products And Chemical, Inc. | Electro-optic display and materials for use therein |
US7649666B2 (en) | 2006-12-07 | 2010-01-19 | E Ink Corporation | Components and methods for use in electro-optic displays |
US7688497B2 (en) * | 2007-01-22 | 2010-03-30 | E Ink Corporation | Multi-layer sheet for use in electro-optic displays |
TWI386313B (en) | 2007-01-22 | 2013-02-21 | E Ink Corp | Multi-layer sheet for use in electro-optic displays |
US7826129B2 (en) | 2007-03-06 | 2010-11-02 | E Ink Corporation | Materials for use in electrophoretic displays |
US10319313B2 (en) | 2007-05-21 | 2019-06-11 | E Ink Corporation | Methods for driving video electro-optic displays |
US9199441B2 (en) | 2007-06-28 | 2015-12-01 | E Ink Corporation | Processes for the production of electro-optic displays, and color filters for use therein |
WO2009006248A1 (en) | 2007-06-29 | 2009-01-08 | E Ink Corporation | Electro-optic displays, and materials and methods for production thereof |
US8902153B2 (en) | 2007-08-03 | 2014-12-02 | E Ink Corporation | Electro-optic displays, and processes for their production |
JP4489799B2 (en) * | 2007-08-27 | 2010-06-23 | セイコーエプソン株式会社 | Sheet for electrophoretic display device, production method thereof and use thereof |
JP4410815B2 (en) | 2007-09-04 | 2010-02-03 | セイコーエプソン株式会社 | Coating liquid composition for electrophoretic display device, sheet for electrophoretic display device, production method thereof and use thereof |
US20090122389A1 (en) | 2007-11-14 | 2009-05-14 | E Ink Corporation | Electro-optic assemblies, and adhesives and binders for use therein |
WO2009117730A1 (en) | 2008-03-21 | 2009-09-24 | E Ink Corporation | Electro-optic displays and color filters |
ES2823736T3 (en) | 2008-04-11 | 2021-05-10 | E Ink Corp | Procedures for exciting electro-optical display devices |
TWI418911B (en) * | 2008-12-01 | 2013-12-11 | Prime View Int Co Ltd | Electro-phoretic display and fabricating method thereof |
US8457013B2 (en) | 2009-01-13 | 2013-06-04 | Metrologic Instruments, Inc. | Wireless dual-function network device dynamically switching and reconfiguring from a wireless network router state of operation into a wireless network coordinator state of operation in a wireless communication network |
US8234507B2 (en) | 2009-01-13 | 2012-07-31 | Metrologic Instruments, Inc. | Electronic-ink display device employing a power switching mechanism automatically responsive to predefined states of device configuration |
TWI484273B (en) | 2009-02-09 | 2015-05-11 | E Ink Corp | Electrophoretic particles |
US8098418B2 (en) | 2009-03-03 | 2012-01-17 | E. Ink Corporation | Electro-optic displays, and color filters for use therein |
JP2010256695A (en) * | 2009-04-27 | 2010-11-11 | Seiko Epson Corp | Display sheet, display device and electronic equipment |
CN104656977B (en) | 2009-10-28 | 2018-01-26 | 伊英克公司 | Electro-optic displays with touch sensor |
US8654436B1 (en) | 2009-10-30 | 2014-02-18 | E Ink Corporation | Particles for use in electrophoretic displays |
KR101278349B1 (en) * | 2009-11-12 | 2013-06-25 | 삼성전기주식회사 | Inspection apparatus and method for circuit of substrate |
US8446664B2 (en) | 2010-04-02 | 2013-05-21 | E Ink Corporation | Electrophoretic media, and materials for use therein |
KR101793352B1 (en) | 2010-04-09 | 2017-11-02 | 이 잉크 코포레이션 | Methods for driving electro-optic displays |
TWI484275B (en) | 2010-05-21 | 2015-05-11 | E Ink Corp | Electro-optic display, method for driving the same and microcavity electrophoretic display |
US20130125910A1 (en) | 2011-11-18 | 2013-05-23 | Avon Products, Inc. | Use of Electrophoretic Microcapsules in a Cosmetic Composition |
CN104136992B (en) * | 2012-02-27 | 2016-04-20 | 三菱电机株式会社 | display screen, optical element and display device |
WO2013133851A1 (en) * | 2012-03-09 | 2013-09-12 | Hewlett-Packard Development Company, L.P. | Multi-stable electronic inks |
WO2013159093A1 (en) | 2012-04-20 | 2013-10-24 | E Ink Corporation | Illumination systems for reflective displays |
US11467466B2 (en) | 2012-04-20 | 2022-10-11 | E Ink Corporation | Illumination systems for reflective displays |
US10282033B2 (en) | 2012-06-01 | 2019-05-07 | E Ink Corporation | Methods for updating electro-optic displays when drawing or writing on the display |
US9513743B2 (en) | 2012-06-01 | 2016-12-06 | E Ink Corporation | Methods for driving electro-optic displays |
KR102114212B1 (en) * | 2012-08-10 | 2020-05-22 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | Display device |
US9715155B1 (en) | 2013-01-10 | 2017-07-25 | E Ink Corporation | Electrode structures for electro-optic displays |
WO2014110394A1 (en) | 2013-01-10 | 2014-07-17 | E Ink Corporation | Electro-optic display with controlled electrochemical reactions |
JP6396451B2 (en) | 2013-10-22 | 2018-09-26 | ヴライト イノヴェーションズ リミテッド | Wide operating temperature range electrophoresis device |
CN105917265B (en) | 2014-01-17 | 2019-01-15 | 伊英克公司 | Electro-optic displays with two-phase electrode layer |
US10317767B2 (en) | 2014-02-07 | 2019-06-11 | E Ink Corporation | Electro-optic display backplane structure with drive components and pixel electrodes on opposed surfaces |
KR20160119195A (en) | 2014-02-07 | 2016-10-12 | 이 잉크 코포레이션 | Electro-optic display backplane structures |
US10446585B2 (en) | 2014-03-17 | 2019-10-15 | E Ink Corporation | Multi-layer expanding electrode structures for backplane assemblies |
US9506243B1 (en) | 2014-03-20 | 2016-11-29 | E Ink Corporation | Thermally-responsive film |
ES2959493T3 (en) | 2014-11-07 | 2024-02-26 | E Ink Corp | Electro-optic tile |
US9835925B1 (en) | 2015-01-08 | 2017-12-05 | E Ink Corporation | Electro-optic displays, and processes for the production thereof |
US10475396B2 (en) | 2015-02-04 | 2019-11-12 | E Ink Corporation | Electro-optic displays with reduced remnant voltage, and related apparatus and methods |
US10997930B2 (en) | 2015-05-27 | 2021-05-04 | E Ink Corporation | Methods and circuitry for driving display devices |
EP3314328B1 (en) | 2015-06-29 | 2021-03-03 | E Ink Corporation | Electro-optic display device and method of manufacturing thereof |
US10527899B2 (en) | 2016-05-31 | 2020-01-07 | E Ink Corporation | Backplanes for electro-optic displays |
WO2018160546A1 (en) | 2017-02-28 | 2018-09-07 | E Ink Corporation | Writeable electrophoretic displays including sensing circuits and styli configured to interact with sensing circuits |
WO2018183240A1 (en) | 2017-03-28 | 2018-10-04 | E Ink Corporation | Porous backplane for electro-optic display |
TWI682261B (en) | 2017-05-19 | 2020-01-11 | 美商電子墨水股份有限公司 | Foldable electro-optic display including digitization and touch sensing |
US11404013B2 (en) | 2017-05-30 | 2022-08-02 | E Ink Corporation | Electro-optic displays with resistors for discharging remnant charges |
EP3631575A4 (en) | 2017-05-30 | 2021-01-13 | E Ink Corporation | Electro-optic displays |
EP3639087B1 (en) | 2017-06-16 | 2022-11-02 | E Ink Corporation | Variable transmission electrophoretic devices |
ES2963164T3 (en) | 2017-06-16 | 2024-03-25 | E Ink Corp | Electro-optical media including pigments encapsulated in gelatin binder |
US10882042B2 (en) | 2017-10-18 | 2021-01-05 | E Ink Corporation | Digital microfluidic devices including dual substrates with thin-film transistors and capacitive sensing |
US10824042B1 (en) | 2017-10-27 | 2020-11-03 | E Ink Corporation | Electro-optic display and composite materials having low thermal sensitivity for use therein |
CN111226163B (en) | 2017-11-03 | 2021-10-22 | 伊英克公司 | Process for producing electro-optic displays |
US11079651B2 (en) | 2017-12-15 | 2021-08-03 | E Ink Corporation | Multi-color electro-optic media |
US11430626B2 (en) * | 2018-01-19 | 2022-08-30 | Wuxi Vision Peak Technology Co., Ltd | High-resolution display plasma module and manufacturing method thereof |
CN108227333A (en) * | 2018-01-19 | 2018-06-29 | 无锡威峰科技股份有限公司 | A kind of display plasma-based module and its manufacturing method |
US11081066B2 (en) | 2018-02-15 | 2021-08-03 | E Ink Corporation | Via placement for slim border electro-optic display backplanes with decreased capacitive coupling between t-wires and pixel electrodes |
US11175561B1 (en) | 2018-04-12 | 2021-11-16 | E Ink Corporation | Electrophoretic display media with network electrodes and methods of making and using the same |
US11353759B2 (en) | 2018-09-17 | 2022-06-07 | Nuclera Nucleics Ltd. | Backplanes with hexagonal and triangular electrodes |
KR102577837B1 (en) | 2018-10-15 | 2023-09-12 | 이 잉크 코포레이션 | Digital microfluidic delivery device |
US11145262B2 (en) | 2018-11-09 | 2021-10-12 | E Ink Corporation | Electro-optic displays |
US11754903B1 (en) | 2018-11-16 | 2023-09-12 | E Ink Corporation | Electro-optic assemblies and materials for use therein |
EP3894934A4 (en) | 2018-12-13 | 2022-07-20 | E Ink Corporation | Illumination systems for reflective displays |
TWI728631B (en) | 2018-12-28 | 2021-05-21 | 美商電子墨水股份有限公司 | Electro-optic displays |
EP3903303A4 (en) | 2018-12-30 | 2022-09-07 | E Ink California, LLC | Electro-optic displays |
US11567388B2 (en) | 2019-02-25 | 2023-01-31 | E Ink Corporation | Composite electrophoretic particles and variable transmission films containing the same |
US11456397B2 (en) | 2019-03-12 | 2022-09-27 | E Ink Corporation | Energy harvesting electro-optic displays |
US11761123B2 (en) | 2019-08-07 | 2023-09-19 | E Ink Corporation | Switching ribbons for textiles |
GB201914105D0 (en) | 2019-09-30 | 2019-11-13 | Vlyte Innovations Ltd | A see-through electrophoretic device having a visible grid |
WO2021133794A1 (en) | 2019-12-23 | 2021-07-01 | E Ink Corporation | Color electrophoretic layer including microcapsules with nonionic polymeric walls |
JP7407293B2 (en) | 2020-02-07 | 2023-12-28 | イー インク コーポレイション | Electrophoretic display layer with thin film top electrode |
JP2023529136A (en) | 2020-06-03 | 2023-07-07 | イー インク コーポレイション | A foldable electrophoretic display module including a non-conductive support plate |
TW202314665A (en) | 2021-08-18 | 2023-04-01 | 美商電子墨水股份有限公司 | Methods for driving electro-optic displays |
CN113741113A (en) * | 2021-09-23 | 2021-12-03 | 广东志慧芯屏科技有限公司 | Pressure-bearing electronic paper film and manufacturing process thereof |
CN113625501A (en) * | 2021-09-23 | 2021-11-09 | 广东志慧芯屏科技有限公司 | Electronic paper membrane assembly capable of bearing pressure and manufacturing process thereof |
WO2023164078A1 (en) | 2022-02-25 | 2023-08-31 | E Ink Corporation | Electro-optic displays with edge seal components and methods of making the same |
US11830449B2 (en) | 2022-03-01 | 2023-11-28 | E Ink Corporation | Electro-optic displays |
US20230350263A1 (en) | 2022-04-27 | 2023-11-02 | E Ink Corporation | Electro-optic display stacks with segmented electrodes and methods of making the same |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0632312A2 (en) * | 1993-06-29 | 1995-01-04 | Casio Computer Company Limited | Polymer dispersed liquid crystal display device and method of manufacturing the same |
EP0659866A2 (en) * | 1993-12-27 | 1995-06-28 | Matsushita Electric Industrial Co., Ltd. | Liquid-crytal panel, method of manufacturing the same, and liquid-crystal display apparatus |
WO1998019208A2 (en) * | 1996-10-25 | 1998-05-07 | Massachusetts Institute Of Technology | Nonemissive displays and piezoelectric power supplies therefor |
US5835577A (en) * | 1996-04-25 | 1998-11-10 | Copytele, Inc. | Multi-functional personal telecommunications apparatus |
JP2000035598A (en) * | 1998-07-17 | 2000-02-02 | Nok Corp | Display panel |
Family Cites Families (92)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2800457A (en) | 1953-06-30 | 1957-07-23 | Ncr Co | Oil-containing microscopic capsules and method of making them |
JPS4915377B1 (en) | 1968-10-04 | 1974-04-15 | ||
US3585381A (en) | 1969-04-14 | 1971-06-15 | Ncr Co | Encapsulated cholesteric liquid crystal display device |
US3612758A (en) | 1969-10-03 | 1971-10-12 | Xerox Corp | Color display device |
US3870517A (en) | 1969-10-18 | 1975-03-11 | Matsushita Electric Ind Co Ltd | Color image reproduction sheet employed in photoelectrophoretic imaging |
US3668106A (en) | 1970-04-09 | 1972-06-06 | Matsushita Electric Ind Co Ltd | Electrophoretic display device |
JPS4917079B1 (en) | 1970-12-21 | 1974-04-26 | ||
US3772013A (en) | 1971-01-06 | 1973-11-13 | Xerox Corp | Photoelectrophoretic imaging process employing electrically photosensitive particles and inert particles |
US3912365A (en) | 1971-07-26 | 1975-10-14 | Research Frontiers Inc | Method and apparatus for maintaining the separation of plates |
US4273672A (en) | 1971-08-23 | 1981-06-16 | Champion International Corporation | Microencapsulation process |
US3852092A (en) * | 1972-06-05 | 1974-12-03 | J Patterson | Thermally responsive elastic membrane |
CA1013843A (en) | 1972-09-11 | 1977-07-12 | Tadao Kohashi | Light modulating device |
US3990783A (en) | 1972-09-11 | 1976-11-09 | Matsushita Electric Industrial Co., Ltd. | Light modulating device |
IT1031474B (en) | 1974-02-12 | 1979-04-30 | Plessey Handel Investment Ag | WORKING FLUID FOR ELECTROPHORETIC DEVICES FOR VISUAL IMAGE TAKING |
US4001140A (en) | 1974-07-10 | 1977-01-04 | Ncr Corporation | Capsule manufacture |
FR2318474A1 (en) | 1975-07-17 | 1977-02-11 | Thomson Csf | ELECTROPHORESIS DISPLAY DEVICE |
US4078856A (en) | 1976-03-17 | 1978-03-14 | Research Frontiers Incorporated | Light valve |
US4126854A (en) | 1976-05-05 | 1978-11-21 | Xerox Corporation | Twisting ball panel display |
US4143103A (en) | 1976-05-04 | 1979-03-06 | Xerox Corporation | Method of making a twisting ball panel display |
US4071430A (en) | 1976-12-06 | 1978-01-31 | North American Philips Corporation | Electrophoretic image display having an improved switching time |
JPS5596922A (en) * | 1979-01-19 | 1980-07-23 | Sharp Corp | Liquid crystal display element |
GB2043542B (en) | 1979-03-05 | 1982-12-08 | Philips Nv | Printing device for electrophoretic recording |
US4285801A (en) | 1979-09-20 | 1981-08-25 | Xerox Corporation | Electrophoretic display composition |
US4336536A (en) | 1979-12-17 | 1982-06-22 | Kalt Charles G | Reflective display and method of making same |
US4390403A (en) | 1981-07-24 | 1983-06-28 | Batchelder J Samuel | Method and apparatus for dielectrophoretic manipulation of chemical species |
US4435047A (en) | 1981-09-16 | 1984-03-06 | Manchester R & D Partnership | Encapsulated liquid crystal and method |
US4606611A (en) | 1981-09-16 | 1986-08-19 | Manchester R & D Partnership | Enhanced scattering in voltage sensitive encapsulated liquid crystal |
JPS60189731A (en) | 1984-03-09 | 1985-09-27 | Nippon Paint Co Ltd | Dispersion composition for electrophoresis display device |
CH661373A5 (en) | 1984-09-11 | 1987-07-15 | Autophon Ag | ALPHANUMERIC DISPLAY SYSTEM WITH SEGMENTS CONTROLABLE IN EVERY VISIBLE AND INVISIBLE CONDITION. |
US4655897A (en) | 1984-11-13 | 1987-04-07 | Copytele, Inc. | Electrophoretic display panels and associated methods |
US4732830A (en) | 1984-11-13 | 1988-03-22 | Copytele, Inc. | Electrophoretic display panels and associated methods |
US4643528A (en) | 1985-03-18 | 1987-02-17 | Manchester R & D Partnership | Encapsulated liquid crystal and filler material |
US4742345A (en) | 1985-11-19 | 1988-05-03 | Copytele, Inc. | Electrophoretic display panel apparatus and methods therefor |
US4690749A (en) | 1985-12-16 | 1987-09-01 | Universities Space Research Association | Polymer-coated surfaces to control surface zeta potential |
JPS62299824A (en) | 1986-06-19 | 1987-12-26 | Ricoh Co Ltd | Electrophoresis display element |
US4746917A (en) | 1986-07-14 | 1988-05-24 | Copytele, Inc. | Method and apparatus for operating an electrophoretic display between a display and a non-display mode |
US5279773A (en) | 1986-12-05 | 1994-01-18 | Research Frontiers Incorporated | Light valve incorporating a suspension stabilized with a block polymer |
US4919521A (en) | 1987-06-03 | 1990-04-24 | Nippon Sheet Glass Co., Ltd. | Electromagnetic device |
US4870677A (en) | 1987-09-04 | 1989-09-26 | Copytele, Inc. | Data/facsimile telephone subset apparatus incorporating electrophoretic displays |
JP2551783B2 (en) * | 1987-09-29 | 1996-11-06 | エヌオーケー株式会社 | Electrophoretic display device |
JPH01114829A (en) | 1987-10-28 | 1989-05-08 | Nippon Mektron Ltd | Electrophoretic display device |
US4947159A (en) | 1988-04-18 | 1990-08-07 | 501 Copytele, Inc. | Power supply apparatus capable of multi-mode operation for an electrophoretic display panel |
US4947157A (en) | 1988-10-03 | 1990-08-07 | 501 Copytele, Inc. | Apparatus and methods for pulsing the electrodes of an electrophoretic display for achieving faster display operation |
US4889603A (en) | 1988-12-09 | 1989-12-26 | Copytele, Inc. | Method of eliminating gas bubbles in an electrophoretic display |
JP2733676B2 (en) | 1989-02-25 | 1998-03-30 | エヌオーケー株式会社 | Electrophoretic display device, display dispersion system, and method for producing the dispersion system |
US5041824A (en) | 1989-03-02 | 1991-08-20 | Copytele, Inc. | Semitransparent electrophoretic information displays (EPID) employing mesh like electrodes |
US5053763A (en) | 1989-05-01 | 1991-10-01 | Copytele, Inc. | Dual anode flat panel electrophoretic display apparatus |
US5302235A (en) | 1989-05-01 | 1994-04-12 | Copytele, Inc. | Dual anode flat panel electrophoretic display apparatus |
US5066946A (en) | 1989-07-03 | 1991-11-19 | Copytele, Inc. | Electrophoretic display panel with selective line erasure |
US5254981A (en) | 1989-09-15 | 1993-10-19 | Copytele, Inc. | Electrophoretic display employing gray scale capability utilizing area modulation |
US5077157A (en) | 1989-11-24 | 1991-12-31 | Copytele, Inc. | Methods of fabricating dual anode, flat panel electrophoretic displays |
US5497171A (en) | 1989-11-27 | 1996-03-05 | Asulab S.A. | Electronic display arrangement |
US5250938A (en) | 1990-12-19 | 1993-10-05 | Copytele, Inc. | Electrophoretic display panel having enhanced operation |
US5223823A (en) | 1991-03-11 | 1993-06-29 | Copytele, Inc. | Electrophoretic display panel with plural electrically independent anode elements |
US5187609A (en) | 1991-03-27 | 1993-02-16 | Disanto Frank J | Electrophoretic display panel with semiconductor coated elements |
US5315312A (en) | 1991-05-06 | 1994-05-24 | Copytele, Inc. | Electrophoretic display panel with tapered grid insulators and associated methods |
US5223115A (en) | 1991-05-13 | 1993-06-29 | Copytele, Inc. | Electrophoretic display with single character erasure |
US5216416A (en) | 1991-08-19 | 1993-06-01 | Copytele, Inc. | Electrophoretic display panel with interleaved local anode |
WO1993005425A1 (en) | 1991-08-29 | 1993-03-18 | Copytele, Inc. | Electrophoretic display panel with internal mesh background screen |
JPH05108016A (en) | 1991-10-14 | 1993-04-30 | Nok Corp | Visible display device |
US5463491A (en) | 1991-11-01 | 1995-10-31 | Research Frontiers Incorporated | Light valve employing a film comprising an encapsulated liquid suspension, and method of making such film |
US5463492A (en) | 1991-11-01 | 1995-10-31 | Research Frontiers Incorporated | Light modulating film of improved clarity for a light valve |
US5247290A (en) | 1991-11-21 | 1993-09-21 | Copytele, Inc. | Method of operation for reducing power, increasing life and improving performance of epids |
US5266937A (en) | 1991-11-25 | 1993-11-30 | Copytele, Inc. | Method for writing data to an electrophoretic display panel |
US5174882A (en) | 1991-11-25 | 1992-12-29 | Copytele, Inc. | Electrode structure for an electrophoretic display apparatus |
US5293528A (en) | 1992-02-25 | 1994-03-08 | Copytele, Inc. | Electrophoretic display panel and associated methods providing single pixel erase capability |
CA2133453C (en) | 1992-02-25 | 1999-07-06 | Frank J. Disanto | Electrophoretic display panel and associated methods for blinking displayed characters |
JPH0748149B2 (en) | 1992-03-19 | 1995-05-24 | テクトロニクス・インコーポレイテッド | LCD flat panel display |
JP3200957B2 (en) | 1992-04-30 | 2001-08-20 | セイコーエプソン株式会社 | Manufacturing method of electrophoretic display |
US5279511A (en) | 1992-10-21 | 1994-01-18 | Copytele, Inc. | Method of filling an electrophoretic display |
US5345251A (en) | 1993-01-11 | 1994-09-06 | Copytele, Inc. | Electrophoretic display panel with interleaved cathode and anode |
US5402145A (en) | 1993-02-17 | 1995-03-28 | Copytele, Inc. | Electrophoretic display panel with arc driven individual pixels |
EP0703996A4 (en) | 1993-05-21 | 1996-07-10 | Copytele Inc | Methods of preparing electrophoretic dispersions containing two types of particles with different colors and opposite charges |
JPH09502540A (en) | 1993-09-09 | 1997-03-11 | コピイテル,インコーポレイテッド | Selective character addressable electrophoretic display panel |
JPH09505900A (en) | 1993-10-01 | 1997-06-10 | コピイテル,インコーポレイテッド | Electrophoretic display panel with selective character address controllability |
EP0684468A3 (en) | 1994-05-27 | 1997-03-26 | Eastman Kodak Co | Fog-free electrophoresis device. |
US5650872A (en) | 1994-12-08 | 1997-07-22 | Research Frontiers Incorporated | Light valve containing ultrafine particles |
US6124851A (en) | 1995-07-20 | 2000-09-26 | E Ink Corporation | Electronic book with multiple page displays |
US6118426A (en) | 1995-07-20 | 2000-09-12 | E Ink Corporation | Transducers and indicators having printed displays |
US6120588A (en) | 1996-07-19 | 2000-09-19 | E Ink Corporation | Electronically addressable microencapsulated ink and display thereof |
US6017584A (en) | 1995-07-20 | 2000-01-25 | E Ink Corporation | Multi-color electrophoretic displays and materials for making the same |
US6120839A (en) | 1995-07-20 | 2000-09-19 | E Ink Corporation | Electro-osmotic displays and materials for making the same |
US5754332A (en) | 1996-06-27 | 1998-05-19 | Xerox Corporation | Monolayer gyricon display |
JP3700272B2 (en) | 1996-08-06 | 2005-09-28 | 富士ゼロックス株式会社 | Electrophoretic recording material and electrophoretic display device |
US5815306A (en) | 1996-12-24 | 1998-09-29 | Xerox Corporation | "Eggcrate" substrate for a twisting ball display |
US5961804A (en) * | 1997-03-18 | 1999-10-05 | Massachusetts Institute Of Technology | Microencapsulated electrophoretic display |
US5866284A (en) * | 1997-05-28 | 1999-02-02 | Hewlett-Packard Company | Print method and apparatus for re-writable medium |
US6177921B1 (en) | 1997-08-28 | 2001-01-23 | E Ink Corporation | Printable electrode structures for displays |
US6067185A (en) | 1997-08-28 | 2000-05-23 | E Ink Corporation | Process for creating an encapsulated electrophoretic display |
US6130774A (en) | 1998-04-27 | 2000-10-10 | E Ink Corporation | Shutter mode microencapsulated electrophoretic display |
JP4085449B2 (en) * | 1997-10-09 | 2008-05-14 | ブラザー工業株式会社 | Electrophoretic display device, microcapsule and medium |
US6014247A (en) | 1998-06-05 | 2000-01-11 | Lear Automotive Dearborn, Inc. | Electronic ink dimming mirror |
-
2000
- 2000-06-29 WO PCT/US2000/017944 patent/WO2001002899A2/en active Application Filing
- 2000-06-29 AU AU57792/00A patent/AU5779200A/en not_active Abandoned
- 2000-06-29 AT AT00943302T patent/ATE502320T1/en not_active IP Right Cessation
- 2000-06-29 US US09/606,070 patent/US6392786B1/en not_active Expired - Lifetime
- 2000-06-29 EP EP00943302A patent/EP1192504B1/en not_active Expired - Lifetime
- 2000-06-29 JP JP2001508641A patent/JP5394601B2/en not_active Expired - Fee Related
- 2000-06-29 DE DE60045738T patent/DE60045738D1/en not_active Expired - Lifetime
-
2012
- 2012-12-06 JP JP2012266929A patent/JP2013054387A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0632312A2 (en) * | 1993-06-29 | 1995-01-04 | Casio Computer Company Limited | Polymer dispersed liquid crystal display device and method of manufacturing the same |
EP0659866A2 (en) * | 1993-12-27 | 1995-06-28 | Matsushita Electric Industrial Co., Ltd. | Liquid-crytal panel, method of manufacturing the same, and liquid-crystal display apparatus |
US5835577A (en) * | 1996-04-25 | 1998-11-10 | Copytele, Inc. | Multi-functional personal telecommunications apparatus |
WO1998019208A2 (en) * | 1996-10-25 | 1998-05-07 | Massachusetts Institute Of Technology | Nonemissive displays and piezoelectric power supplies therefor |
JP2000035598A (en) * | 1998-07-17 | 2000-02-02 | Nok Corp | Display panel |
Non-Patent Citations (3)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 004, no. 149 (P-032), 21 October 1980 (1980-10-21) & JP 55 096922 A (SHARP CORP), 23 July 1980 (1980-07-23) * |
PATENT ABSTRACTS OF JAPAN vol. 013, no. 316 (P-900), 18 July 1989 (1989-07-18) & JP 01 086116 A (NIPPON MEKTRON LTD), 30 March 1989 (1989-03-30) -& JP 01 086116 A 30 March 1989 (1989-03-30) * |
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 05, 14 September 2000 (2000-09-14) & JP 2000 035598 A (NOK CORP), 2 February 2000 (2000-02-02) -& JP 2000 035598 A 2 February 2000 (2000-02-02) * |
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US8400291B2 (en) | 2009-02-12 | 2013-03-19 | Brother Kogyo Kabushiki Kaisha | Information display apparatus and computer readable medium having information display program |
WO2012050445A1 (en) | 2010-10-13 | 2012-04-19 | Polymer Vision B.V. | Common driving of displays |
US8514213B2 (en) | 2010-10-13 | 2013-08-20 | Creator Technology B.V. | Common driving of displays |
US8717280B2 (en) | 2010-12-08 | 2014-05-06 | Creator Technology B.V. | Consecutive driving of displays |
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WO2012099468A1 (en) | 2011-01-19 | 2012-07-26 | Polymer Vision B.V. | Super low voltage driving of displays |
Also Published As
Publication number | Publication date |
---|---|
JP5394601B2 (en) | 2014-01-22 |
US6392786B1 (en) | 2002-05-21 |
JP2003504666A (en) | 2003-02-04 |
DE60045738D1 (en) | 2011-04-28 |
WO2001002899A3 (en) | 2001-05-25 |
AU5779200A (en) | 2001-01-22 |
EP1192504B1 (en) | 2011-03-16 |
ATE502320T1 (en) | 2011-04-15 |
JP2013054387A (en) | 2013-03-21 |
EP1192504A2 (en) | 2002-04-03 |
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