WO1990015359A1 - Liquid crystal display mounting structure - Google Patents
Liquid crystal display mounting structure Download PDFInfo
- Publication number
- WO1990015359A1 WO1990015359A1 PCT/US1990/003106 US9003106W WO9015359A1 WO 1990015359 A1 WO1990015359 A1 WO 1990015359A1 US 9003106 W US9003106 W US 9003106W WO 9015359 A1 WO9015359 A1 WO 9015359A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lcd
- mounting structure
- liquid crystal
- crystal display
- structure according
- Prior art date
Links
Classifications
-
- 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
- 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
-
- 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
- G02F1/133311—Environmental protection, e.g. against dust or humidity
-
- 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
- G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
-
- 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
Definitions
- This invention relates to a structure for mounting a liquid crystal display (LCD) in a portable computer housing and a method for making the mounting structure.
- LCD liquid crystal display
- computers do not have impact absorption features to protect fragile components, such as LCDs, from damage due to dropping or other day-to-day handling of the computer.
- the conventional computer LCDs are mounted in a metal frame or hard plastic two-piece shell which structurally supports the LCD, but offers little protection against damage.
- Conventional lap-top computers are more prone to damage because they are trans ⁇ ported more frequently.
- the conventional lap-top computer offers no more protection against damage to its fragile components, such as its LCD, than desk-top computers. Only the size of the computer and the location of the fragile structures within are factors which might reduce the potential for damage should the lap-top computer be dropped.
- a mounting structure for an LCD which absorbs the shock from dropping and bending a portable computer, and thereby prevents damage to the LCD.
- the mounting structure and a method for making this mounting structure employ resilient shock absorbers, made from SorbothaneTM or low durometer silicone rubber for example, dimensionally sized and mounted along the edges of the LCD.
- the resilient material has elastic properties which give it compressibility as well as the ability to recover its original shape.
- the resilient shock absorbers are placed under a pre-load during assembly, wherein the pre-load is determined by factors such as the mass and the gravity- loading needed to support the LCD.
- the shock absorbers are typically compressed within a three-dimensional frame which provides a stiff structure so that the combined effect of the shock absorbers and the frame offer maximum protection to the LCD.
- the resilient shock absorbers will absorb energy from deflecting, bending and dropping.
- the LCD and the shock absorbers are installed into a computer housing. After assembly into a computer housing, the mounting structure acts as a suspension system which supports the glass LCD and allows the glass to remain planar with bending of the housing.
- the housing is preferably made of plastic and is therefore more flexible than the glass LCD.
- the LCD assembly is hermetically sealed within the computer housing. Moreover, the LCD assembly can be evacuated before sealing the structure in order to protect the LCD from potentially trapped moisture, dust and other contaminants from the surrounding environment.
- Figure 1 is a cross-sectional view illustrating the housing assembly and the associated mounting structure of this invention according to a first embodiment
- Figure 2 is a front view illustrating the resilient shock mounts at the corners of the LCD assembly according to the first embodiment;
- Figure 3 is a perspective view of the shock mounts in the first embodiment;
- Figure 4 is a perspective exploded view illustrating the LCD mounting structure of a second embodiment.
- Figures 5A and 5B are cross-sectional views of the shock mounts according to second and third embodiments.
- Figure 5C is a perspective view of the LCD in combination with a printed circuit board, both with and without shock absorbing resilient material.
- Figure 5D is a cross-sectional view illustrating the housing assembly and associated mounting structure according to a second embodiment.
- Figure 6A is a perspective exploded view illustrating the LCD mounting structure of a third embodiment.
- Figures 6B-6E are front views of the layers shown in Figure 6A.
- Figure 7 is a perspective view illustrating in more detail the upper housing of the second embodiment.
- Figure 8 is a perspective view of an LCD electronics support bracket, as used in the second and third embodiments.
- FIG. 1 illustrates the first embodiment of LCD mounting structure 100.
- a housing 1 houses mounting structure 100.
- Mounting structure 100 holds an LCD assembly 10 and associated circuitry (not shown) within housing 1.
- LCD assembly 10 comprises a top glass 7 and a bottom glass 8, each glass preferably including a polarizer between which is located the liquid crystal material.
- Polarizer 6 is located on the LCD assembly top glass 7 and polarizer with reflector 5 is located on the LCD assembly bottom glass 8.
- the polarizers control the ambient light into and the reflected light out of the LCD, in particular controlling the polarization of light transmitted through LCD assembly 10.
- LCD assembly 10 has associated circuitry such as row driver circuitry and column driver circuitry on a printed circuit board, and flexible circuitry (all not shown) associated with LCD assembly 10.
- shock mounts 2 are mounted.
- the shock mounts 2 are made from a rubber material having resiliency, so that they are compressible but recover their original shape after the load is removed.
- the resilient material used for shock mounts 2 is preferably SorbothaneTM or a silicon rubber with a low durometer in the range of 15-20, for example.
- Shock mounts 2 are molded to conform to the corners of the joined pair of glasses 7 and 8.
- Shock mount 2 is preferably shaped, as shown in Figure 3 for the first embodiment, to include a pocket having the dimensions of a corner portion of LCD assembly 10. Since one shock mount is required for each of the four corners of the LCD in this embodiment, the preferred design allows the same shock mount to be used at each corner, regardless of orientation.
- the LCD assembly 10 the associated printed/flexible circuitry, and shock mounts 2 are placed into the housing 1.
- a three-dimensional frame 3 is placed over the LCD assembly 10 and shock mounts 2 to enclose the LCD and its circuitry.
- Three-dimensional frame 3 is constructed with sides 12 each attached along one edge thereof to a horizontal plate 4 having an opening for viewing the display.
- Horizontal plate 4 has an inside perimeter which defines an opening and an outside perimeter where sides 12 are attached.
- Sides 12 are securely attached or preferably integrally connected to horizontal plate 4 in the first embodiment. Sides 12 extend downward from horizontal plate 4.
- Adjacent sides 12 are securely joined together, or preferably integrally connected so that horizontal plate 4 and sides 12 form a rigid 3-dimensional frame 3. Sides 12 are preferably perpendicular to horizontal plate 4 and adjacent ones of sides 12 are preferably perpendicular to each other in the first embodiment.
- the horizontal plate 4 is preferably of a single-piece construction, but can be formed in parts which are securely joined together.
- the first embodiment further comprises a transparent sheet 15 which is securely attached along the inside perimeter of horizontal plate 4 to fit within the opening. Transparent sheet 15 can be ultrasonically welded to horizontal plate 4, or preferably is integrally connected. Transparent sheet 15 is attached to horizontal plate 4 prior to installation of the three- dimensional frame 3 into housing 1. When molded as one part, this attachment step is not necessary before installation.
- the three-dimensional frame 3 can be made from polycarbonate plastic, such as Lexan or the like.
- Transparent sheet 15 can be made from transparent Lexan.
- Sides 12 of the three-dimensional frame 3 slide into housing 1 around the outer periphery of the LCD assembly 10, associated circuitry, and shock mounts 2.
- Horizontal plate 3 rests on shock mounts 2 and transparent sheet 4 covers top glass plate 7 of LCD assembly 10 when installed into housing 1.
- pressure is applied to the horizontal plate 4 to compress shock mounts 2 preferably to 75 percent of their original volume.
- shock mounts 2 are under compression
- three-dimensional frame 3 is ultrasonically welded or chemically bonded to housing 1 to seal the structure. This bonding step allows horizontal plate 4, transparent sheet 15 and sides 12 to form a 3-dimensional mounting structure 100 with housing 1, thereby producing a structure 100 according to the first embodiment with much greater stiffness than the individual components 1, 3, 4, 12 and 15.
- the assembly is evacuated by pulling a vacuum during the assembly process just prior to hermetic sealing.
- three- dimensional frame 3 is hermetically sealed along line 14 of the outer perimeter of horizontal plate 4.
- the LCD assembly 10 is protected from the atmosphere and contamination, namely from humidity, dust, and dirt.
- Figure 2 illustrates a front view of the LCD mounting structure of the first embodiment. Four shock mounts 2 are shown in the four corners of LCD assembly 10.
- the transparent overlay 15 is placed directly over LCD assembly 10.
- the horizontal plate 4 can be a bezel which outlines and frames LCD assembly 10.
- the transparent overlay 15 is joined with horizontal plate 4 at line 13 and horizontal plate 4 is joined to the housing 1 at line 14.
- Horizontal plate 4 and transparent overlay 15 of the first embodiment form a stiff and rigid three-dimensional structure with housing 1 when horizontal plate 4 is formed of polycarbonate, and housing 1 is formed of ABS/polycarbonate alloy. Moreover, a rigid three- dimensional structure is created when horizontal plate 3 and transparent overlay 4 are .04" thick, housing 1 is .100" thick, and horizontal plate 4 is securely joined to housing 1. Other thicknesses may provide sufficient rigidity for most day-to-day handling, but the above thicknesses are optimum and preferable.
- FIG. 4 and 5A-5D A second embodiment of the present invention is illustrated in Figures 4 and 5A-5D.
- Mounting structure 400 of the second embodiment comprises horizontal plate 46.
- Horizontal plate 46 includes frame 43 surrounding a transparent sheet 44.
- Transparent sheet 44 may be a separate piece securely joined at its outside perimeter to the inside perimeter of frame 43.
- frame 43 and transparent sheet 44 may be simply parts of a single horizontal plate 46.
- Frame 43 is preferably opaque to hide electronic components below and preferably includes markings related to information to be displayed by an LCD
- Mounting structure 400 further comprises resilient shock mounts 42a, 42b which are preferably placed along the two shorter edges of LCD 40 according to the second embodiment.
- Resilient shock mounts 42a, 42b are made from a low durometer material, preferably silicone rubber having from 30 to 40 durometer, and are illustrated in Figures 5A-5D.
- resilient shock mounts have first shock mount shape 42a and second shock mount shape 42b.
- the shape of shock mounts 42a and 42b differ because shock mount 42b must accommodate printed and flexible circuitry 49 which is attached to edge 40-3 of LCD 40, as illustrated in Figure 5C.
- shock mounts 42a and 42b must conform to the shape of housing
- housing 41 comprises sides 41d-g, wherein side 4Id is opposite to 41e and side 4If is opposite to 41g.
- Sides 41d-f have two thicknesses, wherein a thicker tier 41d-f(-1) is adjacent to back wall 41a, while a thinner tier 41d-f(-2) extends from and is adjacent to only thicker tier 41d-f(-l).
- Housing 41 further comprises recesses 41h in back wall 41a.
- Recesses 41h have various shapes or configurations and are located in back wall 41a to accommodate protruding electronic circuitry (not shown) on LCD 40.
- Recesses 41h may be machined in back wall 41a after housing 41 is molded.
- Recesses 41h can be incorporated into the molding process to eliminate this machining step.
- Housing 41 still further comprises protrusions 41j located at the corners of housing 41. In the second embodiment, two protrusions 41j-l protrude internally from side 41f adjacent to corner 41-3 and three protrusions 41j-2 protrude internally from side 41e adjacent to corner 41-3 also. Adjacent to corner 41-4, three protrusions
- protrusion 41j-3 extend from side 41e internally and two protrusions 41j-4 extend from side 41g internally. All protrusions are integrally connected to back wall 41a and the thicker tier 41e-l, 41f-l of sides 41e and f, respectively.
- the protrusions serve as pressure points which deform the shock mount locally under load. They also serve to locate the shock mount without adding undesirable thickness to the housing walls.
- the height of each group of protrusions is dictated by a sealing ledge 41k. Sealing ledge 41k extends along the inner perimeter of housing 41 on all four sides 41d-g. Sealing ledge 41k receives horizontal plate 46. Sealing ledge 41k is further away from back wall 41a on side 4If than on side 41g which is opposite to side 41f. Therefore, sealing ledge 41k is slanted at an angle on opposite sides 41e and 4Id defined by the height of sealing ledge 41k on sides 41f and 41g.
- shock mount 42a is applied to edge 40-4 (see Figure 4) of LCD 40.
- a bottom membrane 42a-3 made of the same resilient material extends from end 42a-l to end 42a-2 of shock mount 42a.
- Bottom membrane 42a-3 is thicker at end 42a-l than at end 42a-2, thereby leaving clearance for electronic components under LCD 40 and allowing the front surface of LCD 40 to be at an angle with respect to housing 41.
- Both ends 42a-l and 42a-2 have a wrap around configuration 42a-4 and 42a-5 and a thin sheet of resilient material forming top membrane 42a- 6 which extends from oppositely extending wrap arounds 42a-4 and 42a-5.
- Shock mount 42a has a rear wall 42a-7 extending from end-to-end (42a-l and 42a-2) adjacent to top membrane 42a-6 and bottom membrane 42a-3. Opposite to rear wall 42a-7 is an opening 42a-8 which exposes the cavity or receptacle for edge 40-4 of LCD 40. Wrap around configurations 42a-4 and 42a-5 are sized to receive corner portions of edge 40-4 of LCD 40. Located on the top of wrap arounds 42a-4 and 42a-5 are ribs 42a-9. Ribs 42a-9 protrude out from shock mount 42a. Ribs 42a-9 function as pressure points when shock mounts 42a are compressed during assembly.
- shock mount 42b is similar to shock mount 42a except that bottom membrane 42b-3 has been cut away so that it no longer extends from end-to-end (42b-l, 2) .
- Bottom portions 42b-31 and 42b-32 are located only at ends 42b-l, 2 and form part of wrap around configurations 42b-4 and 42b-5.
- rear wall 42b-7 is adjacent to top membrane 42b-6 and extends from end-to-end, but is adjacent to respective bottom portions 42b-31, 32 only at ends 42b-l, 2.
- Shock mount 42b is shaped as described above to accommodate the associated circuitry 49 at edge 40-3 of LCD 40, as illustrated in Figure 5C.
- shock mount 42a is installed on LCD 40 so that bottom membrane 42a-3 contacts the back wall 41a of housing 41.
- the thicker end of shock mount 42a (end 42a-l, see Figure 5A) is placed against a thicker edge 41-2 of housing 41 so that LCD 40 is raised up from back wall 41a and is essentially at an angle to the back wall 41a of housing 41, as illustrated in Figure 5D.
- Membranes 42a-6 and 42b-6 serve to maintain an air gap between the LCD and transparent sheet 44, to avoid optical interference in the LCD viewing area.
- shock mounts 42a and 42b are mounted onto edges 40-4 and 40-3 of LCD 40, respectively.
- the associated electronics are already assembled to LCD 40, as illustrated in Figure 4.
- Edge 40-4, having shock mount 42a attached thereto, is placed within housing 41 so that rear wall 42a-7 and ends 42a-l,2 of shock mount 42a are received by protrusions 41j located at the corners of housing 41.
- Edge 40-3 and the associated electronics 49 are placed into housing 41, and a bracket 41r (see Figure 8) is placed over the associated electronics to hold the electronics and edge 40-3 in place.
- Bracket 41r has four sides preferably designed to outline the edges of the associated electronics 49 on edge 40-3 of LCD 40.
- one side 41r-l of bracket 41r has extension 41r-5 comprising end piece 41r-6 for cooperating with receptacle 41m in back wall 41a of housing 41.
- Extension 41r-5 also comprises a portion of sealing edge 41k from side 4If of housing 41.
- Another side 41r-3, opposite to side 41r-l, has an extension 41r-7 comprising end piece 41r-8.
- Hexagonal hole 41r-8a in end piece 41r-8 provides a locking interference fit when pressed onto cylindrical post 41n in back wall 41a.
- Tab 41r-4-a fits into an undercut (not shown) in housing side wall 41-d, which combines with post 41n to positively lock bracket 41r over LCD electronics 49 and into housing 41.
- Side 41r-4 has hook 41r-9 extending internally away from side 41r-4 and downward. Hook 41r-9 is received by printed circuitry 49 in hole 49-1.
- side 41r-4 comprises additional portions of sealing edge 41k from side 41d of housing 41.
- Side 41r-2 which is opposite to side 41r-4, has semi-circle-shaped cylindrical bosses 41r-10 which protrude internally from side 41r-2. Bosses 41r-10 function to allow easier removal of part 41r from the mold used during injection molding of part 41r.
- Side 41r-2 bridges over flexible circuitry 49-2 to hold shock mount 42b and LCD edge 40-3 in place.
- Bracket 41r locks with housing 41 at at least points 41r-6, 41m and 41r-8a, 4In to hold edge 40-3 of LCD 40 within housing 41.
- Horizontal plate 46 ( Figure 4) is placed over LCD 40 in housing 41. The outer perimeter of horizontal plate 46 rests on sealing edge 41k of housing 41 and bracket 41r. Horizontal plate 46 is attached, preferably ultrasonically welded to housing 41 at sealing edge 41k and to bracket 41r at four sealing edges 41k-l, 41k-2, 41k-3, 41k-4.
- the second embodiment can be hermetically sealed and evacuated prior to hermetic sealing as described above for the first embodiment also.
- a three-dimensional rigid box is created by the combination of horizontal plate 46, housing 41 and sides 41d-g of housing 41 after plate 46 is welded onto housing 41.
- LCD mounting structure 600 comprises housing 61 which has upwardly extending sides 61d-g and screw receiving holes 61a-l integrally associated with back wall 61a of housing 61.
- Figure 6B illustrates the inside of housing 61.
- Sides 61f and 61g are opposite to each other and side 61f is adapted to receive latch 61c while side 61g is adapted to form hinge 61b which will receive a hinge pin.
- Resilient shock mounts 62a,b are mounted on the edges 60-4,3 of an LCD 60, respectively, as illustrated in Figure 6C. Shock mounts 62a,b are similar to the shock mounts 42a,b of the second embodiment. Also shown in Figure 6C is row driver printed circuitry 69 and flexible cable 69a associated with edge 60-3 of LCD 60.
- LCD frame 63 is a horizontal plate having an inside perimeter and an outside perimeter. The inside perimeter defines a display window 63a and is shaped with a flange. Frame portion 63b is wider than portions 63c-e so that row driver printed circuitry 69 is hidden from view when LCD frame 63 is mounted over LCD 60 in housing 61.
- LCD frame 63 also comprises through-holes 63f near the four corners of LCD frame 63. Through-holes 63f receive screws 64. Screws 64 connect LCD frame 63 to housing 61 after LCD 60 is placed in housing 61.
- FIG. 6E illustrates overlay 65 which preferably provides the logo information and display symbols for LCD 60.
- Overlay 65 can be made of plastic, preferably polycarbonate, and has an inner perimeter defining a window 65a.
- One side of overlay 65 has an adhesive applied. The adhesive side of overlay 65 adheres to LCD frame 63 after assembly. After assembly, overlay 65 covers screws 64.
- Mounting structure 600 is assembled by aligning LCD 60, having resilient shock mounts 62a,b mounted on the edges thereof, inside housing 61 as illustrated in Figure 6A.
- LCD 60, associated circuitry, and shock mounts 62a,b fit within an area defined by screw receiving holes 61a-l.
- a bracket similar to bracket 41r may be placed over circuitry 69 and its associated flexible circuitry (not shown) to hold circuitry 69 in place in housing 61.
- bracket 41r may be incorporated in the rear surface shape of LCD frame 63.
- LCD frame 63 is placed over LCD 60 and the associated parts and screws 64 are inserted to attach LCD frame 63 to housing 61, thereby enclosing LCD 60 and the associated parts within. After screws 64 are inserted, overlay 65 is adhered to LCD frame 63.
- a rigid three-dimensional box is created according to the third embodiment by the cooperative effects of housing 61, LCD frame 63 and screws 64.
- the third embodiment has the advantages of allowing disassembly and repair of the LCD and associated electronics, or replacement of plastic parts. This will improve production yield and reduce unit cost.
- a non-glare film 60c applied to LCD 60 functions as the transparent sheet 44 of Figure 4 so that the display can be viewed and the LCD simultaneously protected. Installing the LCD with no cover sheet increases display contrast and readability, eliminates optical interference problems, and prevents accidental trapping of moisture or foreign material in the viewing area.
- LCD frame 63 having window 63a frames LCD assembly 60 to create a display window.
- Mounting structures 100 allow the LCD glass plates to float with respect to the housing.
- the housing may be deformed or otherwise stressed by dropping or compressing its associated portable computer, but the LCD glasses remain relatively flat and cushioned from the shock and load. Effectively, the mounting structures suspend the LCD glasses, and leave the glass more nearly planar when the housing is deformed.
- the effectiveness of mounting structure 400 was tested by dropping two prototype portable computers having the second embodiment of the present invention incorporated therein from a height of ten feet onto concrete several times. The LCD assemblies survived the drops without damage. It was found that while the LCD assemblies of the first embodiment survived the impact of this test also, the shock mounts 2 of the first embodiment did not remain in place after repeated testing.
- the second and third embodiments were designed to overcome this problem.
- Shock mounts 42a,b and 62a,b extend from one corner to another corner along respective edges 40-4,3 and 60-4,3.
- the portable computer containing the invention was compressed by having a user sit on chairs of various types while the computer was in the user's back pocket (a potential mishap likely to occur with pocket sized portable computers), thus applying stress to the computer housing.
- An inspection of the portable computer after the compression test revealed no damage to the LCD assembly.
- the LCD mounting structures are designed to absorb the shock associated with dropping or other day-to-day handling of a portable computer and thereby protects the LCD (glass and circuitry) from damage.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1990909263 DE474766T1 (en) | 1989-05-31 | 1990-05-31 | MOUNTING STRUCTURE FOR A LIQUID CRYSTAL DISPLAY DEVICE. |
KR1019910701741A KR920701856A (en) | 1989-05-31 | 1990-05-31 | Liquid Crystal Display Support Structure |
US07/809,536 US5363227A (en) | 1989-05-31 | 1990-05-31 | Liquid crystal display mounting structure |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US359,191 | 1989-05-31 | ||
US07/359,191 US5002368A (en) | 1989-05-31 | 1989-05-31 | Liquid crystal display mounting structure |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1990015359A1 true WO1990015359A1 (en) | 1990-12-13 |
Family
ID=23412719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1990/003106 WO1990015359A1 (en) | 1989-05-31 | 1990-05-31 | Liquid crystal display mounting structure |
Country Status (7)
Country | Link |
---|---|
US (3) | US5002368A (en) |
EP (1) | EP0474766A4 (en) |
JP (1) | JP3012320B2 (en) |
KR (1) | KR920701856A (en) |
AU (1) | AU5818190A (en) |
CA (1) | CA2055474A1 (en) |
WO (1) | WO1990015359A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2264583A (en) * | 1992-02-28 | 1993-09-01 | Nec Corp | Data display radio pager |
EP0600279A2 (en) * | 1992-11-12 | 1994-06-08 | Canon Kabushiki Kaisha | Liquid crystal display device |
EP0642087A1 (en) * | 1993-09-01 | 1995-03-08 | NCR International, Inc. | Computer housing seal |
EP0642088A1 (en) * | 1993-09-01 | 1995-03-08 | NCR International, Inc. | Apparatus for containing and supporting electronic components |
FR2756126A1 (en) * | 1996-11-20 | 1998-05-22 | Harris Corp | LIQUID CRYSTAL DISPLAY PANEL SUPPORT FOR TEST TELEPHONE COMBINATION |
US5936600A (en) * | 1993-11-04 | 1999-08-10 | Citizen Watch Co., Ltd. | Liquid crystal display device |
DE20110595U1 (en) * | 2001-06-28 | 2002-08-08 | Siemens Ag | Holding device for floating storage of a flat screen and electronic display device with flat screen and holding device |
US7170741B2 (en) | 1998-11-11 | 2007-01-30 | Lg. Philips Lcd Co., Ltd. | Portable computer and method for mounting a flat panel display device module |
KR100846978B1 (en) | 2007-01-09 | 2008-07-17 | 삼성에스디아이 주식회사 | Liquid crystal display |
Families Citing this family (80)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5002368A (en) * | 1989-05-31 | 1991-03-26 | Poqet Computer Corporation | Liquid crystal display mounting structure |
US5146390A (en) * | 1991-03-08 | 1992-09-08 | John Fluke Mfg. Co., Inc. | Lcd support bracket |
CA2071381C (en) * | 1991-07-19 | 1998-12-15 | Youji Satou | Electronic apparatus, card-type electronic component used with the electronic apparatus, and electronic system with expanding apparatus for expanding function of electronic apparatus |
US5166814A (en) * | 1991-08-30 | 1992-11-24 | Motorola, Inc. | Liquid crystal display including a liquid filled membrane cushion and magnifier |
JP3205373B2 (en) * | 1992-03-12 | 2001-09-04 | 株式会社日立製作所 | Liquid crystal display |
US5796575A (en) * | 1992-12-21 | 1998-08-18 | Hewlett-Packard Company | Portable computer with hinged cover having a window |
US5479285A (en) * | 1993-09-01 | 1995-12-26 | Ncr Corporation | Liquid crystal device with an isotropic shock mounting and gasket |
US5992812A (en) * | 1994-01-06 | 1999-11-30 | Bose Corporation | Shock absorbing corner impact |
US5488496A (en) * | 1994-03-07 | 1996-01-30 | Pine; Jerrold S. | Partitionable display system |
US5568357A (en) * | 1994-06-15 | 1996-10-22 | Metanetics Corporation | Display support having cradled damping caps for floating core shock absorption |
US5666171A (en) * | 1994-08-02 | 1997-09-09 | Casio Computer Co., Ltd. | Liquid crystal image projector |
US5594574A (en) * | 1994-11-30 | 1997-01-14 | Rockwell International Corp. | LCD multi-axis floating mount |
US6151012A (en) * | 1995-11-16 | 2000-11-21 | Bullister; Edward | Multifunctional portable computing device with special housing |
US6697055B1 (en) | 1995-11-16 | 2004-02-24 | Edward Bullister | Multifunctional portable computing device with special housing |
JP2885693B2 (en) * | 1996-04-23 | 1999-04-26 | 静岡日本電気株式会社 | LCD holding structure for small electronic devices |
JP2839085B2 (en) * | 1996-07-25 | 1998-12-16 | 日本電気株式会社 | Liquid crystal display |
JP3889090B2 (en) * | 1996-08-28 | 2007-03-07 | 株式会社東芝 | Sheet holding device |
KR200168703Y1 (en) * | 1996-12-04 | 2000-02-01 | 윤종용 | Main pcb combining structure for monitor of lcd |
US6838810B1 (en) * | 1997-03-21 | 2005-01-04 | Chunghwa Picture Tubes, Ltd. | Flat-panel display mounting system for portable computer |
KR100218581B1 (en) | 1997-04-08 | 1999-09-01 | 구자홍 | Portable computer having liquid crystal display |
KR100224306B1 (en) * | 1997-05-27 | 1999-10-15 | 윤종용 | Liquid crystal panel combining method of liquid crystal display device and the device |
US7492421B1 (en) | 1997-07-03 | 2009-02-17 | Lg Display Co., Ltd. | Case for liquid crystal display |
GB2327288A (en) * | 1997-07-12 | 1999-01-20 | Motorola Israel Ltd | Liquid crystal display assembly |
KR100441842B1 (en) * | 1997-07-30 | 2004-12-17 | 삼성전자주식회사 | Lcd module assembling structure of an lcd device, particularly concerned with improving an assembling stability of the lcd module |
JPH11102160A (en) * | 1997-09-29 | 1999-04-13 | Mitsubishi Electric Corp | Liquid crystal panel module and liquid crystal display device using the same |
KR100296829B1 (en) * | 1997-11-28 | 2001-10-24 | 윤종용 | Impact preventing structure of electronic system and portable computer to which the same is applied |
US5963421A (en) * | 1997-12-09 | 1999-10-05 | Dell Usa, L.P. | Display assembly stiffening apparatus |
US6002582A (en) * | 1998-01-05 | 1999-12-14 | Dell U.S.A., L.P. | Adapter for various LCD sizes in a computer |
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TW445386B (en) * | 1998-03-16 | 2001-07-11 | Hitachi Ltd | Thin-type display |
JP3678918B2 (en) * | 1998-06-18 | 2005-08-03 | 株式会社リコー | Liquid crystal display device, holding member for liquid crystal display device, and assembly structure of liquid crystal display device |
KR100299531B1 (en) * | 1998-08-10 | 2001-10-27 | 구본준, 론 위라하디락사 | Slim Liquid Crystal Display |
US6501641B1 (en) * | 1998-10-23 | 2002-12-31 | Lg. Philips Lcd Co. Ltd. | Portable computer having a flat panel display device |
US6532152B1 (en) * | 1998-11-16 | 2003-03-11 | Intermec Ip Corp. | Ruggedized hand held computer |
JP3538046B2 (en) * | 1998-12-11 | 2004-06-14 | Nec液晶テクノロジー株式会社 | Portable terminal device |
JP3271600B2 (en) * | 1999-02-16 | 2002-04-02 | 日本電気株式会社 | Liquid crystal display device and its heat control method |
US6144552A (en) * | 1999-04-26 | 2000-11-07 | Emc Corporation | Handheld computer system |
JP4288774B2 (en) * | 1999-07-23 | 2009-07-01 | セイコーエプソン株式会社 | Projection display |
US6428176B1 (en) | 1999-10-27 | 2002-08-06 | Gateway, Inc. | Backlit liquid crystal display structure for a laptop computer |
US6307603B1 (en) * | 2000-01-18 | 2001-10-23 | Aurora Systems, Inc. | Low stress packaging for a display device |
US6624979B1 (en) | 2000-06-09 | 2003-09-23 | Iomega Corporation | Method and apparatus for parking and releasing a magnetic head |
US6628474B1 (en) | 2000-06-09 | 2003-09-30 | Iomega Corporation | Method and apparatus for electrostatic discharge protection in a removable cartridge |
US6717762B1 (en) | 2000-06-09 | 2004-04-06 | Iomega Corporation | Method and apparatus for making a drive compatible with a removable cartridge |
US6633445B1 (en) | 2000-06-09 | 2003-10-14 | Iomega Corporation | Method and apparatus for electrically coupling components in a removable cartridge |
US6781782B2 (en) | 2000-12-21 | 2004-08-24 | Iomega Corporation | Method and apparatus for saving calibration parameters for a removable cartridge |
US6731354B2 (en) | 2001-03-22 | 2004-05-04 | Aurora Systems, Inc. | Liquid crystal display mount including a frame having stress relief recess |
US6900984B2 (en) | 2001-04-24 | 2005-05-31 | Apple Computer, Inc. | Computer component protection |
KR100394151B1 (en) | 2001-04-25 | 2003-08-09 | 주성숙 | Conductive cushion for the liquid crystal displayer of movable wireless telecommunication terminal |
US6779067B2 (en) | 2001-05-14 | 2004-08-17 | Iomega Corporation | Method and apparatus for providing extended functionality for a bus |
US6496362B2 (en) * | 2001-05-14 | 2002-12-17 | Iomega Corporation | Method and apparatus for protecting a hard disk drive from shock |
US6901525B2 (en) | 2001-05-25 | 2005-05-31 | Iomega Corporation | Method and apparatus for managing power consumption on a bus |
JP4217394B2 (en) * | 2001-08-22 | 2009-01-28 | シャープ株式会社 | Liquid crystal display |
KR100490156B1 (en) * | 2002-10-25 | 2005-05-16 | 엘지전자 주식회사 | Device for fixing to module of LCD monitor |
KR100839163B1 (en) * | 2002-12-04 | 2008-06-17 | 삼성전자주식회사 | Plat panel display device |
US6982866B2 (en) * | 2003-02-14 | 2006-01-03 | Intel Corporation | Lightweight robust enclosure design for a mobile computing system |
TW587723U (en) * | 2003-03-28 | 2004-05-11 | Abocom Sys Inc | Structure for absorbing the shock |
GB2404090B (en) * | 2003-07-14 | 2006-04-19 | Research In Motion Ltd | Component assembly cushioning device for mobile telecommunications devices |
US20050067106A1 (en) * | 2003-09-25 | 2005-03-31 | Melges Suzanne K. | Food labeling device for printing time and date information on adhesive labels to track freshness |
JP4461778B2 (en) * | 2003-11-19 | 2010-05-12 | 日本電気株式会社 | Mobile terminal device |
US7130185B2 (en) | 2004-06-02 | 2006-10-31 | Research In Motion Limited | Handheld computing device having drop-resistant LCD display |
US20060023139A1 (en) * | 2004-07-27 | 2006-02-02 | Twinwill Optronics Inc. | Liquid crystal display panel |
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US7940518B2 (en) * | 2007-04-03 | 2011-05-10 | Pandigital, Inc. | Dual frame electronic display |
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TWI397798B (en) * | 2007-06-04 | 2013-06-01 | Asustek Comp Inc | Portable electronic apparatus |
JP2009014782A (en) * | 2007-06-29 | 2009-01-22 | Fujitsu Ltd | Display device and electronic apparatus |
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US8260377B2 (en) * | 2009-05-07 | 2012-09-04 | Research In Motion Limited | Gasket for a mobile device having a touch sensitive display |
US20100319683A1 (en) * | 2009-06-19 | 2010-12-23 | Solfocus, Inc. | Molded Securing Device for an Optical Element |
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US8358395B1 (en) | 2010-03-09 | 2013-01-22 | Western Digital Technologies, Inc. | Electronic display assembly comprising a display mount and a flex circuit wrapped around and adhered to the display mount |
WO2012037094A2 (en) | 2010-09-14 | 2012-03-22 | Corning Incorporated | Appliance fascia and mounting therefore |
US8508927B2 (en) | 2010-09-24 | 2013-08-13 | Research In Motion Limited | Gasket and display assembly for an electronic mobile device |
US8823898B2 (en) | 2011-04-22 | 2014-09-02 | Blackberry Limited | Suspension and tolerance absorption subassembly for a display screen |
US9158340B2 (en) | 2011-06-27 | 2015-10-13 | Hand Held Products, Inc. | Apparatus and method for assembling display of indicia reading terminal |
JP2013092655A (en) * | 2011-10-26 | 2013-05-16 | Funai Electric Co Ltd | Display device and television device |
KR101289287B1 (en) * | 2012-01-09 | 2013-07-24 | 에버브라이튼주식회사 | Angle adjustment apparatus of image display module |
CN103791467A (en) * | 2014-01-24 | 2014-05-14 | 成都京东方光电科技有限公司 | Rubber frame, backlight module and display device |
US10025549B1 (en) * | 2015-07-22 | 2018-07-17 | Steve Welck | Immersive digital display systems |
JP7399591B2 (en) * | 2021-10-11 | 2023-12-18 | 矢崎総業株式会社 | display device |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3689131A (en) * | 1970-06-29 | 1972-09-05 | Rca Corp | Liquid crystal display device |
US4012117A (en) * | 1974-07-29 | 1977-03-15 | Rca Corporation | Liquid crystal module |
US4025162A (en) * | 1974-08-09 | 1977-05-24 | Kabushiki Kaisha Daini Seikosha | Liquid crystal display device |
US4234947A (en) * | 1977-12-20 | 1980-11-18 | Citizen Watch Co., Ltd. | Solar battery powered timepiece |
US4260224A (en) * | 1977-08-02 | 1981-04-07 | Kabushiki Kaisha Suwa Seikosha | Multi-layer liquid crystal panel |
US4514042A (en) * | 1981-09-30 | 1985-04-30 | Sharp Kabushiki Kaisha | Thin structure of display panel |
US4514920A (en) * | 1982-11-16 | 1985-05-07 | Doron Shafrir | Display module |
US4515440A (en) * | 1983-04-28 | 1985-05-07 | Rockwell International Corporation | Mounting structure for multiple liquid crystal displays |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5140095A (en) * | 1974-09-30 | 1976-04-03 | Sharp Kk | |
JPS58209777A (en) * | 1982-05-31 | 1983-12-06 | 日本精機株式会社 | Liquid crystal display |
JPS59138086A (en) * | 1983-01-25 | 1984-08-08 | シャープ株式会社 | Substrate connecting method |
JPS60101521A (en) * | 1983-11-07 | 1985-06-05 | Nec Corp | Liquid crystal display device |
JPS60162228A (en) * | 1984-02-01 | 1985-08-24 | Hitachi Ltd | Liquid-crystal display device |
US4742478A (en) * | 1984-09-19 | 1988-05-03 | Data General Corporation | Housing for a portable computer |
JPS61160725A (en) * | 1985-01-09 | 1986-07-21 | Sharp Corp | Liquid crystal display unit |
US4799771A (en) * | 1985-01-22 | 1989-01-24 | Sharp Kabushiki Kaisha | Liquid crystal display with stopper pins in guide means |
GB8611998D0 (en) * | 1986-05-16 | 1986-06-25 | Husky Computers Ltd | Liquid crystal displays |
JPS62269930A (en) * | 1986-05-19 | 1987-11-24 | Hitachi Ltd | Liquid crystal display device |
JPS6337317A (en) * | 1986-08-01 | 1988-02-18 | Hitachi Ltd | Liquid crystal display device |
US4796977A (en) * | 1987-03-17 | 1989-01-10 | Drake George M | Unitary LCD display holder |
JPS63267913A (en) * | 1987-04-27 | 1988-11-04 | Seiko Instr & Electronics Ltd | Electrooptic device |
US5196993A (en) * | 1989-03-06 | 1993-03-23 | Unisys Corp. | Removable stand alone display for laptop computer |
US5002368A (en) * | 1989-05-31 | 1991-03-26 | Poqet Computer Corporation | Liquid crystal display mounting structure |
-
1989
- 1989-05-31 US US07/359,191 patent/US5002368A/en not_active Expired - Lifetime
-
1990
- 1990-05-31 CA CA002055474A patent/CA2055474A1/en not_active Abandoned
- 1990-05-31 US US07/809,536 patent/US5363227A/en not_active Expired - Fee Related
- 1990-05-31 WO PCT/US1990/003106 patent/WO1990015359A1/en not_active Application Discontinuation
- 1990-05-31 KR KR1019910701741A patent/KR920701856A/en not_active Application Discontinuation
- 1990-05-31 AU AU58181/90A patent/AU5818190A/en not_active Abandoned
- 1990-05-31 EP EP19900909263 patent/EP0474766A4/en not_active Ceased
- 1990-05-31 JP JP2508842A patent/JP3012320B2/en not_active Expired - Fee Related
-
1994
- 1994-07-28 US US08/283,112 patent/US5486942A/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3689131A (en) * | 1970-06-29 | 1972-09-05 | Rca Corp | Liquid crystal display device |
US4012117A (en) * | 1974-07-29 | 1977-03-15 | Rca Corporation | Liquid crystal module |
US4025162A (en) * | 1974-08-09 | 1977-05-24 | Kabushiki Kaisha Daini Seikosha | Liquid crystal display device |
US4260224A (en) * | 1977-08-02 | 1981-04-07 | Kabushiki Kaisha Suwa Seikosha | Multi-layer liquid crystal panel |
US4234947A (en) * | 1977-12-20 | 1980-11-18 | Citizen Watch Co., Ltd. | Solar battery powered timepiece |
US4514042A (en) * | 1981-09-30 | 1985-04-30 | Sharp Kabushiki Kaisha | Thin structure of display panel |
US4514920A (en) * | 1982-11-16 | 1985-05-07 | Doron Shafrir | Display module |
US4515440A (en) * | 1983-04-28 | 1985-05-07 | Rockwell International Corporation | Mounting structure for multiple liquid crystal displays |
Non-Patent Citations (1)
Title |
---|
See also references of EP0474766A4 * |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2264583B (en) * | 1992-02-28 | 1996-01-31 | Nec Corp | Data display radio pager |
GB2264583A (en) * | 1992-02-28 | 1993-09-01 | Nec Corp | Data display radio pager |
EP0600279A2 (en) * | 1992-11-12 | 1994-06-08 | Canon Kabushiki Kaisha | Liquid crystal display device |
EP0600279A3 (en) * | 1992-11-12 | 1994-12-07 | Canon Kk | Liquid crystal display device. |
US5583681A (en) * | 1992-11-12 | 1996-12-10 | Canon Kabushiki Kaisha | Liquid crystal apparatus and information transmission apparatus |
US5550712A (en) * | 1993-09-01 | 1996-08-27 | Ncr Corporation | Apparatus for containing and supporting electronic components |
EP0642088A1 (en) * | 1993-09-01 | 1995-03-08 | NCR International, Inc. | Apparatus for containing and supporting electronic components |
EP0642087A1 (en) * | 1993-09-01 | 1995-03-08 | NCR International, Inc. | Computer housing seal |
US5936600A (en) * | 1993-11-04 | 1999-08-10 | Citizen Watch Co., Ltd. | Liquid crystal display device |
FR2756126A1 (en) * | 1996-11-20 | 1998-05-22 | Harris Corp | LIQUID CRYSTAL DISPLAY PANEL SUPPORT FOR TEST TELEPHONE COMBINATION |
US7170741B2 (en) | 1998-11-11 | 2007-01-30 | Lg. Philips Lcd Co., Ltd. | Portable computer and method for mounting a flat panel display device module |
DE20110595U1 (en) * | 2001-06-28 | 2002-08-08 | Siemens Ag | Holding device for floating storage of a flat screen and electronic display device with flat screen and holding device |
US7267313B2 (en) | 2001-06-28 | 2007-09-11 | Siemens Aktiengesellschaft | Retaining device for the floating mounting of a flat screen and electronic display device comprising a flat screen and a retaining device |
KR100846978B1 (en) | 2007-01-09 | 2008-07-17 | 삼성에스디아이 주식회사 | Liquid crystal display |
US7710508B2 (en) | 2007-01-09 | 2010-05-04 | Samsung Mobile Display Co., Ltd. | Liquid crystal display including a bezel having sidewalls and sub-sidewalls |
Also Published As
Publication number | Publication date |
---|---|
EP0474766A4 (en) | 1992-08-26 |
AU5818190A (en) | 1991-01-07 |
US5002368A (en) | 1991-03-26 |
US5363227A (en) | 1994-11-08 |
JP3012320B2 (en) | 2000-02-21 |
US5486942A (en) | 1996-01-23 |
KR920701856A (en) | 1992-08-12 |
CA2055474A1 (en) | 1990-12-01 |
JPH05501456A (en) | 1993-03-18 |
EP0474766A1 (en) | 1992-03-18 |
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