US20120075252A1 - Ruggedized display device - Google Patents
Ruggedized display device Download PDFInfo
- Publication number
- US20120075252A1 US20120075252A1 US12/889,212 US88921210A US2012075252A1 US 20120075252 A1 US20120075252 A1 US 20120075252A1 US 88921210 A US88921210 A US 88921210A US 2012075252 A1 US2012075252 A1 US 2012075252A1
- Authority
- US
- United States
- Prior art keywords
- display device
- protective component
- ruggedized
- display
- electronic display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1601—Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F23/00—Advertising on or in specific articles, e.g. ashtrays, letter-boxes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F23/00—Advertising on or in specific articles, e.g. ashtrays, letter-boxes
- G09F23/06—Advertising on or in specific articles, e.g. ashtrays, letter-boxes the advertising matter being combined with articles for restaurants, shops or offices
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133331—Cover glasses
-
- 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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/50—Protective arrangements
- G02F2201/503—Arrangements improving the resistance to shock
Abstract
A ruggedized display device is disclosed. The ruggedized display device may include an optical stack configured to resist a load up to a load threshold. The optical stack may include an electronic display including a top surface and a bottom surface, and a top protective component coupled to the top surface of the electronic display via a bonding material layer, to shield the electronic display. The top protective component and the bonding material layer may collectively have a first thickness of less than 1.0 millimeters. The optical stack may further include a bottom protective component, coupled to the bottom surface via a resiliently deformable adhesive layer, to support the electronic display from below. The bottom protective component and the adhesive layer may collectively have a second thickness less than 10.0 millimeters.
Description
- Flat screen displays have become both thinner and available in larger screen sizes in recent years. Some of these flat screen displays also include touch and multi-touch sensing capabilities. These thinner, wider, and touch-sensitive displays have been employed in various operating environments, such as horizontally oriented multi-touch tabletop displays, or inclined kiosk displays, etc., in which the displays experience forces on their display surface during use. Unfortunately, conventional flat screen displays can be easily damaged by such forces resulting in high replacement costs and frustrating downtime during repair. Additionally, forces on such thin displays may cause deflection that results in flashing, pooling, or an uneven surface on the display, resulting in an unsatisfactory user experience.
- A ruggedized display device is disclosed. The ruggedized display device may include an optical stack configured to resist a load up to a load threshold. The optical stack may include an electronic display including a top surface and a bottom surface, and a top protective component coupled to the top surface of the electronic display via a bonding material layer, to shield the electronic display from above. The top protective component and the bonding material layer may collectively have a first thickness of less than 1.0 millimeters. The optical stack may further include a bottom protective component, positioned below the bottom surface via a resiliently deformable adhesive layer, to support the electronic display from below. The bottom protective component and the adhesive layer may collectively have a second thickness less than 10.0 millimeters.
- This Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter. Furthermore, the claimed subject matter is not limited to implementations that solve any or all disadvantages noted in any part of this disclosure.
-
FIG. 1A is a perspective view of an embodiment of a ruggedized display device in a horizontal orientation. -
FIG. 1B is a perspective view of the ruggedized display device ofFIG. 1A , in a tilt orientation. -
FIG. 2 is a schematic cross sectional view of the ruggedized display device ofFIG. 1A . -
FIG. 3 is a schematic cross sectional view of the ruggedized display device ofFIG. 1A , showing sag in an optical stack. - A ruggedized display device is disclosed that incorporates a plurality of layers of protective materials in order to enable the device to withstand a load up to a load threshold. The ruggedized display device is configured to mount in a variety of orientations, such as a horizontal or tilt orientation, and may experience loading that includes a loading force with a component that is normal to the display surface. The ruggedized display device includes an optical stack having an electronic display sandwiched between impact resistant top and bottom protective components on a top side and a bottom side. These top and bottom protective components are layers that respectively shield the electronic display from above and support the electronic display device from below, thereby protecting it from damage due to loading.
-
FIG. 1A shows a schematic representation of one embodiment of aruggedized display device 10 mounted in a horizontal orientation, for example as a tabletop display device. Aload 12, illustrated as a coffee mug, placed on the ruggedizeddisplay device 10 exerts aforce 13 on atop surface 15 of the ruggedizeddisplay device 10. The force may be an impact force as theload 12 is placed on thetop surface 15, and may be a static force while theload 12 is at rest thereafter. Other examples of loads on horizontal configurations include people standing on a floor mounted display, leaning on a table top display, etc. A substantial component of theforce 13 may be normal to the surface of theruggedized display device 10. As discussed above, such forces may cause the ruggedizeddisplay device 10 mounted in the horizontal orientation to be vulnerable to damage from excessive impact and static forces, and also due to repeated loading over time. -
FIG. 1B shows a schematic representation of theruggedized display device 10 mounted in a tilt orientation, such as may be used in an information kiosk, for example. It will be appreciated that as with the horizontal orientation illustrated inFIG. 1A , mounting the ruggedizeddisplay device 10 in a tilt orientation also tends to subject atop surface 15 of the device to forces from aload 12 such as the user's hands or arms, or from objects bumping against it. At least a component of these forces may be normal to thetop surface 15. Further, it will be appreciated that even in a vertical mounting orientation, the ruggedized display device may be subject to similar loading normal to thetop surface 15. Excessive loading in these orientations, particularly excessive impact loading, may damage the ruggedized display device, as described above. - As illustrated in
FIG. 2 , to protect theruggedized display device 10 from damage caused by the excessive forces described above, theruggedized display device 10 includes anoptical stack 20 housed within aframe 21, with protective layers on a top side and bottom side. Theoptical stack 20 includes, in order from top to bottom, a topprotective component 22,bonding material layer 24, one ormore accessory films 26,electronic display 28,adhesive layer 30, bottomprotective component 32 and an antireflective coating 34.Backlight 42 emits light throughoptical stack 20 which forms an image on thetop surface 15 of the display. With this configuration, including the protective layers of the topprotective component 22 and the bottomprotective component 22, theoptical stack 20 can resist aforce 13 from aload 12, up to the thresholds specified below. -
Optical stack 20 is configured in such a way as to reduce deflection in one or more layers of the optical stack, which may occur for example, when ruggedizeddisplay device 10 is in a horizontal or tilt orientation due to the weight of the layers of the ruggedized display device and also due to loads applied to thetop surface 15 of theruggedized display device 10. - The various layers of
optical stack 20 described above, may be formed of optically clear materials configured to transmit visible light, and in some embodiments infrared light as well. Thus, the optical stack is comprised of materials that permit visible light and infrared light transmission through the optical stack. For example, materials may be chosen that transmit infrared wavelengths of up to about 2800 nm and up to about 92% of visible light wavelengths, as one non-limiting example. These figures are merely illustrative, and it will be appreciated that alternative materials may be chosen that transmit more or less of the infrared and visible light spectrum, as appropriate for the specific application. - Top
protective component 22 is coupled toelectronic display 28 viabonding material layer 24. In some examples, the topprotective component 22 may mount directly to theelectronic display 28 via the bonding material layer, and in other examples, one ormore accessory films 26 may be sandwiched between theelectronic display 28 and the topprotective component 22. - The top
protective component 22 is comprised of an optically clear material with high impact durability and high impact resistance, such as chemically strengthened glass, and may range from 0.1 millimeters to 1.0 millimeters in thickness. Alternatively, the topprotective component 22 may range from 0.3 millimeters to 0.8 millimeters in thickness, and in some examples, may be 0.45 millimeters. These dimensions have been found to provide strength yet reduce parallax. Further, these dimensions have been found to reduce parallax to a level that enables sensors embedded in the electronic display, such as in-pixel optical sensors, to function for touch and object recognition. Further, a relatively thin top protective layer such as this has been found to provide a better user experience for applications involving a stylus. Chemically strengthened glass is provided as one example due to its material properties such as high impact durability (high retained strength after use). Further, the chemically strengthened glass may have a high impact resistance (flexural strength), which in one example is designed to resist up to a 4 kg load, for example. In addition to chemically strengthened glass, it will be appreciated that topprotective component 22 may be comprised of additional or alternative optically clear materials. - Bonding
material layer 24 is comprised of an optically clear material and may range in thickness from about 0.1 millimeters to 1.0 millimeters.Bonding material layer 24 may be applied to a surface of theaccessory film 26 of theelectronic display 28.Bonding material layer 24 may be a DUPONT® VERTAK® material or a SONY® optically clear adhesive, which are provided as non-limiting examples. In another example,bonding material layer 24 may be bonded directly toelectronic display 28, and theaccessory film 26 may be omitted. To reduce the effect of parallax, enable the use of sensing elements within theelectronic display 28, and improve visibility to the user, the topprotective component 22 andbonding material layer 24 may collectively have afirst thickness 46 that is less than 1.0 millimeters, in one embodiment. In another embodiment, the first thickness may be less than 0.8 millimeters, and more specifically, less than 0.6 millimeters. - One or more
accessory films 26 may be employed to condition the light emitted from theelectronic display 28.Accessory films 26 may include an antireflective film, an antiglare film, a conductive film and/or a privacy film, as non-limiting examples. These one or moreaccessory films 26 may be applied to the top surface of theelectronic display 28, between theelectronic display 28 and thebonding material layer 24. It will be appreciated that the top surface of theelectronic display 28 is often a polarizing layer. While oneaccessory film 26 is depicted in the illustrated embodiment, it will be appreciated that a plurality of films may be used in combination in other embodiments. Further, in another embodiment,accessory film 26 may be omitted, andelectronic display 28 may be bonded directly to topprotective component 22 viabonding material layer 24. In yet another embodiment, anaccessory film 26, such as an antireflective film, may be applied to atop surface 15 of the topprotective component 22. -
Electronic display 28 may be a liquid crystal display (LCD) or an organic light emitting diode (OLED) display comprised of a plurality of light emitting pixels, as one example.Electronic display 28 may also be touch sensitive or multi-touch sensitive. Various touch sensitive technologies may be employed. For example, theelectronic display 28 may include optical sensors, which may be positioned in each pixel of the display, to sense light, and output from these optical sensors may be processed to detect multiple touches on the top surface of the display. These optical sensors may be configured to sense visible light and infrared light, in one example. For instance, the optical sensor may be an active pixel sensor (APS), such as a complementary metal-oxide semiconductor (CMOS) or any other APS configured to sense visible light and infrared light. - As an alternative to in-pixel optical sensors, a capacitive layer may be provided, which is configured to detect touch on the top surface of the display through changes in detected capacitance caused by the touch.
- The bottom
protective component 32 is positioned below the bottom surface of theelectronic display 28, and may be coupled to theelectronic display 28 via anadhesive layer 30. Bottomprotective component 32 is comprised of an optically clear material such as a plastic, for example poly methyl methacrylate (PMMA); although it will be appreciated that bottomprotective component 32 may be comprised of additional or alternative optically clear materials. As another example, bottomprotective component 32 may be comprised of tempered glass. In one embodiment, the thickness of the bottom protective component may range from about 3 millimeters to about 10 millimeters. In other embodiments, the thickness of the bottom protective component may range from about 4 millimeters to 8 millimeters, and in some embodiments, more specifically, is about 4.7 millimeters. Thicknesses in these ranges provide suitable support on the underside of theoptical stack 20 to resist normal loading on the top surface of the stack. -
Adhesive layer 30 is comprised of an optically clear material that is resiliently deformable and has a coefficient of thermal expansion that is compatible with the bottomprotective component 32. Since it is resiliently deformable, theadhesive layer 30 is configured to resiliently accommodate deflection in theelectronic display 28 due to gravity or loading. This concept is discussed further below in reference toFIG. 3 . In addition, theadhesive layer 30 is configured to resiliently accommodate different thermal expansion in the bottom surface of theelectronic display 28 and the top surface of the bottomprotective component 32, which occurs as theelectronic display 28 heats up. Additionally,adhesive layer 30 together with bottomprotective component 32 serve as a support for theelectronic display 28, and thus substantially inhibitelectronic display 28 from deflecting excessively when a load is applied to a top surface of theruggedized display device 10. It will be appreciated that the thickness of theadhesive layer 30 may range from about 0.2 millimeters to about 1.0 millimeters. In other embodiments the thickness may range from about 0.4 millimeters to about 0.8 millimeters and, more specifically, may be about 0.5 millimeters. These thicknesses have been found suitable to accommodate sag and relative lateral movement due to differences in thermal expansion, discussed above. These thicknesses have also been found to provide sufficient support to reduce pooling and flashing in theelectronic display 28. In addition, these thicknesses have been found to reduce both upward and downward deflection oftop surface 15, which reduces the tendency of theoptical stack 20 to break prematurely by reducing tensile stress on the upper layers of the optical stack, including topprotective component 22,bonding material layer 24,accessory films 26,electronic display 28 andadhesive layer 30. - In one embodiment, the bottom
protective component 32 andadhesive layer 30 collectively have asecond thickness 62 that is greater thanfirst thickness 46. In one embodiment, thesecond thickness 62 may be less than 10 millimeters. In other embodiments, thesecond thickness 62 may be less than 8 millimeters, and more specifically may be about 5.2 millimeters. These thicknesses have the above benefits of support, accommodation of sag, and accommodation of differences in thermal expansion of the adjacent layers, as well as the benefit of keeping theoptical stack 20 compact in size. - An anti
reflective coating 34 is positioned on a bottom surface of the bottomprotective component 32 and serves as to allowbacklight 42 to transmit light throughoptical stack 20 without reflection of infrared wavelengths or visible light wavelengths. - With the above construction,
optical stack 20 is configured to resist a load up to a load threshold of 1000 N for a static load and 10 J for a dynamic load. In other embodiments, the optical stack may be configured to resist a load of up to a load threshold of 800 N for a static load and 8 J for a dynamic load, or more specifically up to about 800 N for a static load and 7 J for a dynamic load. -
FIG. 3 illustrates deflection in the various layers of theoptical stack 20, which may be caused by sag under the influence of gravity, or loading from aforce 13 on atop surface 15 of theoptical stack 20. Generally, the deflection will be more pronounced in larger sized displays. Typically, theruggedized display device 10 has a large format screen; for example, in one embodiment, theruggedized display device 10 has a viewable area that diagonally measures 20 inches or greater. In other embodiments, the screen size is 27 inches or greater, and more specifically may be 40 inches. As a result of the sag, acurvature 52 may develop on the top and bottom surfaces of the bottomprotective component 32. In one example, for a 40 inch display size thecurvature 52 may result in a center of screen deflection of about 1.5 millimeters in a ruggedized display device mounted in a horizontal orientation. - The
electronic display 28 and topprotective component 22 are relatively thin and subject to deflection due to loading and sag due to gravity; however, the bottom protective component is positioned below theelectronic display 28 and supports it in a manner that reduces the deflection in theelectronic display 28 and layers above it. To maintain the bond between the bottomprotective component 32 and theadhesive layer 30 even in the presence of sag of the bottomprotective component 32,adhesive layer 30 is configured to resiliently accommodate thecurvature 52 of the bottom protective component. - In addition to sag, the
adhesive layer 30 is configured to absorb relative lateral movement caused by differences in thermal expansion of the electronic display and the bottom protective component. In one particular example, the coefficient of thermal expansion for the electronic display may differ by a factor of 10 from that of the bottom protective layer. As the electronic display heats up, theelectronic display 28 and the bottomprotective component 32 expand at different rates, creating the lateral movement and the conditions for shear forces on theadhesive layer 30. However, with the construction and material properties described above, theadhesive layer 30 is configured to accommodate such relative lateral movement due to differences in thermal expansion, while still keeping the integrity of its bonds to each of the layers above and below it. - As discussed above,
ruggedized display device 10 allows theelectronic display 28 to tolerate loads with force components that are normal to the top surface of the display, as are often experienced in a horizontal or tilt orientation due to theoptical stack 20 arrangement. The optical stack includes a top and bottom protective component and several internal layers that are laminated layers which are adhered to each other, and mechanically joined around a perimeter by a frame. Such a construction has been found useful to resist deflection normal to the top surface, thereby inhibiting cracking, and also to resist damage from impact loads. This construction also helps to reduce pooling, flashing and early breakage due to deflection of the optical stack, as discussed above. By use of such the embodiments described herein, the functional lifespan of display devices subject to loading in the manner described herein may be extended, reducing replacement costs and repair downtime. - This
ruggedized display device 10 has a further advantage in that it is configured to guide light from thebacklight 42 to atop surface 15 of the optical stack, and evenly distribute heat transfer from thebacklight 42 to thetop surface 15. Theoptical stack 20 and its internal components, including the topprotective component 22,bonding material layer 24,accessory films 26,electronic display 28,adhesive layer 30, bottomprotective component 32 and antireflective coating 34, act as thermal insulation between thebacklight 42 andtop surface 15. It will be appreciated that heat frombacklight 42 is unevenly generated. The thermal insulation of theoptical stack 20 helps evenly distribute the heat to avoid hot spots on thetop surface 15 that exceed a predetermined threshold, which could adversely affect performance. This is advantageous in particular because some touch applications have difficulty operating correctly when the temperature of thetop surface 15 exceeds a predetermined threshold, such as 42 C. - It should be understood that the embodiments herein are illustrative and not restrictive, since the scope of the invention is defined by the appended claims rather than by the description preceding them, and all changes that fall within metes and bounds of the claims, or equivalence of such metes and bounds thereof are therefore intended to be embraced by the claims.
Claims (20)
1. A ruggedized display device, comprising an optical stack configured to resist a load up to a load threshold, the optical stack including:
an electronic display including a top surface and a bottom surface;
a top protective component coupled to the top surface of the electronic display via a bonding material layer, to shield the electronic display, the top protective component and the bonding material layer collectively having a first thickness of less than 1.0 millimeters; and
a bottom protective component, coupled to the bottom surface via a resiliently deformable adhesive layer, to support the electronic display from below, the bottom protective component and the adhesive layer collectively having a second thickness less than 10.0 millimeters.
2. The ruggedized display device of claim 1 , wherein the adhesive layer is resiliently deformable to accommodate deflection of and relative lateral movement between the electronic display and the bottom protective component.
3. The ruggedized display device of claim 1 , wherein the adhesive layer is configured to resiliently accommodate different thermal expansion in the bottom surface of the electronic display and the top surface of the bottom protective component, which occurs as the electronic display heats up.
4. The ruggedized display device of claim 1 ,
wherein the electronic display is a liquid crystal display or an organic light emitting diode display;
wherein the liquid crystal display or organic light emitting diode display includes a plurality of pixels, each pixel including an optical sensor, the optical sensors being configured to detect multi-touch input on a top surface of the ruggedized display device.
5. The ruggedized display device of claim 1 , where the top protective component has a thickness that ranges from about 0.1 millimeters to 1.0 millimeters.
6. The ruggedized display device of claim 1 , where the bonding material layer has a thickness that ranges from about 0.1 millimeters to 1.0 millimeters.
7. The ruggedized display device of claim 1 , where the bottom protective component has a thickness that ranges from about 3.0 millimeters to 10.0 millimeters.
8. The ruggedized display device of claim 1 , where the adhesive layer has a thickness that ranges from about 0.2 millimeters to 1.0 millimeters.
9. The ruggedized display device of claim 1 , where the optical stack is comprised of materials that permit visible light and infrared light transmission through the optical stack.
10. The ruggedized display device of claim 1 , where the top protective component has a high impact durability and a high impact resistance.
11. The ruggedized display device of claim 1 , where the bottom protective component is plastic or glass, and the top protective component is plastic or glass.
12. The ruggedized display device of claim 1 , where the top protective component is chemically strengthened glass.
13. The ruggedized display device of claim 1 , where the bottom protective component is poly methyl methacrylate.
14. The ruggedized display device of claim 1 , where the load threshold is selected from the group consisting of a static load threshold of 800 N and a dynamic load threshold of 10 J.
15. The ruggedized display device of claim 1 , further comprising an accessory film positioned intermediate the top protective component and the electronic light emitting device.
16. The ruggedized display device of claim 1 , wherein the optical stack is configured to guide light from a backlight to a top surface of the optical stack, and is further configured to act as thermal insulation and evenly distribute heat transfer from the backlight to the top surface of the optical stack.
17. The ruggedized display device of claim 1 , wherein the electronic display has a viewable area of that diagonally measures 20 inches or more.
18. A ruggedized display device, comprising an optical stack configured to resist a load up to a load threshold, the optical stack including:
an electronic display including a top surface and a bottom surface;
a top protective component coupled to the top surface of the electronic display via a bonding material layer, to shield the electronic display from above, the top protective component and the bonding material layer collectively having a first thickness of less than 1.0 millimeters; and
a bottom protective component, positioned below the bottom surface, to support the electronic display from below;
wherein the electronic display has a viewable area of that diagonally measures 20 inches or more;
where the load threshold is selected from the group consisting of a static load threshold of 800 N and a dynamic load threshold of 10 J.
19. The ruggedized display device of claim 18 , wherein the electronic display is a liquid crystal display or organic light emitting diode display;
wherein the liquid crystal display or organic light emitting diode display includes a plurality of pixels, each pixel including an optical sensor, the optical sensors being configured to detect multi-touch input on a top surface of the ruggedized display device.
20. A ruggedized display device comprising an optical stack configured to resist a load up to a load threshold, the optical stack including:
an electronic light emitting display including a top surface and a bottom surface;
a top protective component comprised of a chemically strengthened glass, coupled to the top surface of the electronic light emitting display via a bonding material layer, to shield the electronic light emitting display, the chemically strengthened glass and the bonding material layer collectively having a first thickness of less than 1.0 millimeters; and
a bottom protective component comprised of plastic or glass, coupled to the bottom surface via an adhesive layer, to support the electronic display from below;
wherein the adhesive layer is configured to resiliently accommodate deflection in the electronic display;
wherein the adhesive layer is configured to resiliently accommodate different thermal expansion in the bottom surface of the electronic display and the top surface of the bottom protective component, which occurs as the electronic display heats up; and
wherein the electronic display is a liquid crystal display or an organic light emitting diode display.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/889,212 US20120075252A1 (en) | 2010-09-23 | 2010-09-23 | Ruggedized display device |
CN201110285450.6A CN102332228B (en) | 2010-09-23 | 2011-09-23 | Reinforced display device |
US14/257,287 US9041877B2 (en) | 2010-09-23 | 2014-04-21 | Ruggedized display device |
US14/719,741 US9383769B2 (en) | 2010-09-23 | 2015-05-22 | Display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/889,212 US20120075252A1 (en) | 2010-09-23 | 2010-09-23 | Ruggedized display device |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/257,287 Continuation US9041877B2 (en) | 2010-09-23 | 2014-04-21 | Ruggedized display device |
Publications (1)
Publication Number | Publication Date |
---|---|
US20120075252A1 true US20120075252A1 (en) | 2012-03-29 |
Family
ID=45483988
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/889,212 Abandoned US20120075252A1 (en) | 2010-09-23 | 2010-09-23 | Ruggedized display device |
US14/257,287 Active US9041877B2 (en) | 2010-09-23 | 2014-04-21 | Ruggedized display device |
US14/719,741 Active US9383769B2 (en) | 2010-09-23 | 2015-05-22 | Display device |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/257,287 Active US9041877B2 (en) | 2010-09-23 | 2014-04-21 | Ruggedized display device |
US14/719,741 Active US9383769B2 (en) | 2010-09-23 | 2015-05-22 | Display device |
Country Status (2)
Country | Link |
---|---|
US (3) | US20120075252A1 (en) |
CN (1) | CN102332228B (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130120686A1 (en) * | 2011-11-11 | 2013-05-16 | Japan Display West, Inc. | Display device |
US20130279769A1 (en) * | 2012-04-10 | 2013-10-24 | Picofield Technologies Inc. | Biometric Sensing |
WO2014074363A1 (en) * | 2012-11-07 | 2014-05-15 | Corning Incorporated | Lcd assemblies and methods for making the same |
US20160120023A1 (en) * | 2014-10-22 | 2016-04-28 | Samsung Display Co., Ltd. | Rollable display device, method of manufacturing the same, and flexible display device |
US20160154501A1 (en) * | 2014-11-27 | 2016-06-02 | Japan Display Inc. | Display device |
US9767446B2 (en) | 2012-07-19 | 2017-09-19 | Mastercard International Incorporated | Touch screen system and methods for multiple contactless payments |
WO2017160479A1 (en) * | 2016-03-17 | 2017-09-21 | Racing Optics, Inc. | Rigid display shield |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016027812A1 (en) * | 2014-08-22 | 2016-02-25 | 旭硝子株式会社 | On-board display apparatus |
US9964793B2 (en) | 2016-02-23 | 2018-05-08 | Microsoft Technology Licensing, Llc | Dissipation layer in a display device |
KR102539196B1 (en) * | 2016-08-18 | 2023-06-02 | 삼성디스플레이 주식회사 | Flexible display device |
US11092324B2 (en) * | 2019-03-28 | 2021-08-17 | GM Global Technology Operations LLC | Semi-transparent sign temperature protection |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5808707A (en) * | 1995-03-01 | 1998-09-15 | Canon Kabushiki Kaisha | Display apparatus |
US5818559A (en) * | 1995-09-26 | 1998-10-06 | Fuji Photo Film Co., Ltd. | Liquid crystal display having different linear expansion coefficients among the materials of the display |
US20020131141A1 (en) * | 1999-03-30 | 2002-09-19 | Seiko Epson Corporation | Electro-optical device and projection display device including the same |
US6654083B1 (en) * | 1997-09-11 | 2003-11-25 | Seiko Epson Corporation | Electronic optical device and method for producing the same, and projection type display device |
US20040085492A1 (en) * | 1998-12-04 | 2004-05-06 | Seiko Epson Corporation | Electro-optical panel, electro-optical panel module, and projection display device |
US20100245706A1 (en) * | 2009-03-24 | 2010-09-30 | Hitachi Displays, Ltd. | Liquid crystal display device |
US20110019363A1 (en) * | 2009-07-23 | 2011-01-27 | Scott Vahlsing | Field serviceable display device |
US20120020056A1 (en) * | 2009-04-30 | 2012-01-26 | Mitsubishi Electric Corporation | Display device and method for manufacturing same |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0482485A (en) | 1990-07-25 | 1992-03-16 | Sony Corp | Back light for liquid crystal |
GB2290405B (en) | 1994-06-11 | 1998-09-16 | Motorola Israel Ltd | Rugged liquid crystal display and method of manufacture |
US6327011B2 (en) | 1997-10-20 | 2001-12-04 | Lg Electronics, Inc. | Liquid crystal display device having thin glass substrate on which protective layer formed and method of making the same |
JP4192369B2 (en) * | 1998-12-04 | 2008-12-10 | セイコーエプソン株式会社 | Electro-optical panel, electro-optical panel module, and projection display device |
JP3697134B2 (en) * | 1999-03-30 | 2005-09-21 | セイコーエプソン株式会社 | Electro-optical device and projection display device including the same |
JP4593721B2 (en) * | 1999-05-19 | 2010-12-08 | グンゼ株式会社 | Touch panel |
JP2002347168A (en) | 2001-03-23 | 2002-12-04 | Toyo Seikan Kaisha Ltd | Laminated sheet and coated seamless can using the sheet |
KR100692695B1 (en) * | 2004-11-30 | 2007-03-14 | 비오이 하이디스 테크놀로지 주식회사 | Liquid crystal display device |
US20060152648A1 (en) * | 2005-01-12 | 2006-07-13 | Samsung Electronics Co., Ltd. | Display device and portable display apparatus including the same |
JP4483833B2 (en) * | 2005-09-22 | 2010-06-16 | エプソンイメージングデバイス株式会社 | Electro-optical device, electronic apparatus, protective member, and manufacturing method of protective member |
GB0607573D0 (en) | 2006-04-13 | 2006-05-24 | Crysoptix Ltd | Backlight module and liquid crystal display incorporating the same |
JP5413937B2 (en) * | 2006-09-28 | 2014-02-12 | 株式会社ジャパンディスプレイ | Electro-optical device and electronic apparatus |
KR101414396B1 (en) * | 2007-01-31 | 2014-07-01 | 세이코 인스트루 가부시키가이샤 | Display |
US8760431B2 (en) * | 2008-07-17 | 2014-06-24 | Samsung Display Co., Ltd. | Display apparatus |
-
2010
- 2010-09-23 US US12/889,212 patent/US20120075252A1/en not_active Abandoned
-
2011
- 2011-09-23 CN CN201110285450.6A patent/CN102332228B/en active Active
-
2014
- 2014-04-21 US US14/257,287 patent/US9041877B2/en active Active
-
2015
- 2015-05-22 US US14/719,741 patent/US9383769B2/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5808707A (en) * | 1995-03-01 | 1998-09-15 | Canon Kabushiki Kaisha | Display apparatus |
US5818559A (en) * | 1995-09-26 | 1998-10-06 | Fuji Photo Film Co., Ltd. | Liquid crystal display having different linear expansion coefficients among the materials of the display |
US6654083B1 (en) * | 1997-09-11 | 2003-11-25 | Seiko Epson Corporation | Electronic optical device and method for producing the same, and projection type display device |
US20040085492A1 (en) * | 1998-12-04 | 2004-05-06 | Seiko Epson Corporation | Electro-optical panel, electro-optical panel module, and projection display device |
US20020131141A1 (en) * | 1999-03-30 | 2002-09-19 | Seiko Epson Corporation | Electro-optical device and projection display device including the same |
US20100245706A1 (en) * | 2009-03-24 | 2010-09-30 | Hitachi Displays, Ltd. | Liquid crystal display device |
US20120020056A1 (en) * | 2009-04-30 | 2012-01-26 | Mitsubishi Electric Corporation | Display device and method for manufacturing same |
US20110019363A1 (en) * | 2009-07-23 | 2011-01-27 | Scott Vahlsing | Field serviceable display device |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130120686A1 (en) * | 2011-11-11 | 2013-05-16 | Japan Display West, Inc. | Display device |
US20130279769A1 (en) * | 2012-04-10 | 2013-10-24 | Picofield Technologies Inc. | Biometric Sensing |
US10114497B2 (en) * | 2012-04-10 | 2018-10-30 | Idex Asa | Biometric sensing |
US20140300574A1 (en) * | 2012-04-10 | 2014-10-09 | Idex Asa | Biometric sensing |
US10101851B2 (en) | 2012-04-10 | 2018-10-16 | Idex Asa | Display with integrated touch screen and fingerprint sensor |
US10088939B2 (en) | 2012-04-10 | 2018-10-02 | Idex Asa | Biometric sensing |
US9798917B2 (en) | 2012-04-10 | 2017-10-24 | Idex Asa | Biometric sensing |
US9767446B2 (en) | 2012-07-19 | 2017-09-19 | Mastercard International Incorporated | Touch screen system and methods for multiple contactless payments |
WO2014074363A1 (en) * | 2012-11-07 | 2014-05-15 | Corning Incorporated | Lcd assemblies and methods for making the same |
US9730318B2 (en) * | 2014-10-22 | 2017-08-08 | Samsung Display Co., Ltd. | Rollable display device, method of manufacturing the same, and flexible display device |
US20160120023A1 (en) * | 2014-10-22 | 2016-04-28 | Samsung Display Co., Ltd. | Rollable display device, method of manufacturing the same, and flexible display device |
TWI689901B (en) * | 2014-10-22 | 2020-04-01 | 南韓商三星顯示器有限公司 | Rollable display device, method of manufacturing the same, and flexible display device |
JP2016102868A (en) * | 2014-11-27 | 2016-06-02 | 株式会社ジャパンディスプレイ | Display device |
US20160154501A1 (en) * | 2014-11-27 | 2016-06-02 | Japan Display Inc. | Display device |
WO2017160479A1 (en) * | 2016-03-17 | 2017-09-21 | Racing Optics, Inc. | Rigid display shield |
US11059266B2 (en) | 2016-03-17 | 2021-07-13 | Racing Optics, Inc. | Rigid display shield |
Also Published As
Publication number | Publication date |
---|---|
US20140226091A1 (en) | 2014-08-14 |
CN102332228A (en) | 2012-01-25 |
US9383769B2 (en) | 2016-07-05 |
CN102332228B (en) | 2014-07-30 |
US20150253811A1 (en) | 2015-09-10 |
US9041877B2 (en) | 2015-05-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9383769B2 (en) | Display device | |
KR102378856B1 (en) | Foldable display design with generalized layer mechanical compatibility | |
KR102482409B1 (en) | Display device | |
US11235554B2 (en) | Window member and display device including the same | |
JP6181391B2 (en) | Touch screen, method of manufacturing the same, and portable terminal including the same | |
US20110037726A1 (en) | Display device and input device | |
KR102563749B1 (en) | Window for display device and display device comprising thereof | |
KR20150023035A (en) | Cover plate in a display, which has a protective supporting bracket at its edge | |
US11147169B2 (en) | Impact absorbing element for display device | |
KR20160116122A (en) | Display device | |
JP2012133428A (en) | Display device | |
KR102408410B1 (en) | Fordable display device | |
US8124890B2 (en) | Electronic device, method for holding electronic component, and method for manufacturing electronic device | |
TWI554405B (en) | Display protection window and display device using the same | |
US20140295157A1 (en) | Window for display device and display device including the window | |
KR102527666B1 (en) | Protection film, electronic divece having the same, and attaching method of the protection film | |
KR102098385B1 (en) | Touch panel | |
US20150022979A1 (en) | Display device | |
JP4413935B2 (en) | Liquid crystal display | |
KR102442043B1 (en) | Foldable display device | |
KR102654660B1 (en) | Fodable display apparatus | |
JP7271114B2 (en) | Display device | |
KR101958556B1 (en) | A Touch Screen Panel Having an Improved Touch Property | |
KR20210026578A (en) | Display device | |
KR20230134652A (en) | Display device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MICROSOFT CORPORATION, WASHINGTON Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DIGHDE, RAJESH MANOHAR;SCHULTZ, BERNIE;KEAM, NIGEL;REEL/FRAME:025035/0580 Effective date: 20100920 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE |
|
AS | Assignment |
Owner name: MICROSOFT TECHNOLOGY LICENSING, LLC, WASHINGTON Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MICROSOFT CORPORATION;REEL/FRAME:034544/0001 Effective date: 20141014 |