WO1994018694B1 - Flat panel device with internal support structure and/or raised black matrix - Google Patents
Flat panel device with internal support structure and/or raised black matrixInfo
- Publication number
- WO1994018694B1 WO1994018694B1 PCT/US1994/000602 US9400602W WO9418694B1 WO 1994018694 B1 WO1994018694 B1 WO 1994018694B1 US 9400602 W US9400602 W US 9400602W WO 9418694 B1 WO9418694 B1 WO 9418694B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spacer
- faceplate
- backplate
- flat panel
- ceramic
- Prior art date
Links
- 239000011159 matrix material Substances 0.000 title abstract 3
- 125000006850 spacer group Chemical group 0.000 claims abstract 29
- 238000000034 method Methods 0.000 claims abstract 10
- 239000000919 ceramic Substances 0.000 claims abstract 8
- 239000002241 glass-ceramic Substances 0.000 claims abstract 3
- 238000001465 metallisation Methods 0.000 claims 6
- 239000011248 coating agent Substances 0.000 claims 4
- 238000000576 coating method Methods 0.000 claims 4
- 238000007789 sealing Methods 0.000 claims 4
- 239000011521 glass Substances 0.000 claims 2
- 239000006112 glass ceramic composition Substances 0.000 claims 2
- 239000002184 metal Substances 0.000 claims 2
- 238000005553 drilling Methods 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 230000003287 optical effect Effects 0.000 abstract 1
Abstract
A flat panel device (300) includes a spacer (308) for providing internal support. The spacer can be made of ceramic or glass-ceramic. Spacer surfaces exposed within the flat panel device are treated to reduce secondary emissions and prevent charging of the spacer surfaces. A light-emitting structure contains a main section (302), a pattern of dark ridges (314) situated along the main section, and a plurality of electron-activated light-emissive regions (313) situated in spaces between the ridges. The dark ridges extend further away from the main section than the light-emissive regions to form a raised black matrix. When the light-emitting structure is used in an optical display, the raised black matrix contacts spacers (308) and, in so doing, protects the light-emissive regions from being damaged. The light-emitting structure can be formed according to various techniques of the invention.
Claims
- 67 -
AMENDED CLAIMS
[received by the International Bureau on 24 August 1994 (24.08.94); original claims 27, 28, 31, 33 and 37 amended; remaining claims unchanged (4 pages)]
23. A device as in Claim 19, further comprising an electrically conductive trace extending from each electrode to a location outside an active region of the device, wherein material is selectively removed from at least one of the traces to establish the desired voltages on the electrodes.
24. A device as in Claim 1, further comprising second edge metallization situated between a second edge surface of the spacer and the faceplate such that the edge metallization forms an electrical connection between the spacer and faceplate.
25. A device as in Claim 24, wherein a resistive coating is formed on the spacer surfaces, the edge metallization being electrically connected to the resistive coating.
26. A device as in Claim 25, wherein the interface between the edge metallization and the resistive coating is at a constant distance from an interior surface of the backplate.
27. A flat panel device comprising: a faceplate; a backplate connected to the faceplate to form a sealed enclosure; means for emitting light from the flat panel device; and a spacer wall situated within the enclosure and supporting the backplate and the faceplate against forces acting in a direction toward the enclosure, wherein the spacer wall is made of ceramic, ceramic reinforced glass, or metal coated with an insulating layer.
28. A flat panel device comprising:
- 68 -
a faceplate a backplate connected to the faceplate to form a sealed enclosure; means for emitting light from the flat panel device; and a spacer situated within the enclosure and supporting the backplate and the faceplate against forces acting in a direction toward the enclosure, wherein the spacer is made of ceramic reinforced glass or metal coated with an insulating layer.
29. A flat panel device comprising: a faceplate; a backplate connected to the faceplate to form a sealed enclosure; means for emitting light from the flat panel device; and a spacer structure situated within the enclosure and supporting the backplate and the faceplate against forces acting in a direction toward the enclosure, a plurality of spacer structure holes being formed through the spacer structure.
30. A device as in any of Claims 1 through 29, wherein the means for emitting light further comprises: a field emitter cathode; and a light emissive structure formed over the faceplate.
31. A method for assembling a flat panel device, comprising the steps of: mounting a ceramic or glass-ceramic spacer wall between a backplate and faceplate; and sealing the backplate and faceplate together to encase the spacer wall in an enclosure.
- 69 -
32. A method as in Claim 31, further comprising the step of mounting an addressing grid within the enclosure, a plurality of addressing grid holes being formed in the addressing grid.
33. A method as in Claim 31 or 32, wherein the sealing step further comprises the step of attaching a top wall, a bottom wall, and two side walls between the face¬ plate and backplate.
34. A method as in Claim 33, further comprising the step of aligning the spacer wall.
35. A method as in Claim 34, wherein the aligning step further comprises the steps of: forming a notch in the addressing grid; and placing the spacer wall in the notch.
36. A method as in Claim 34, wherein: the sealing step further comprises the step of attaching a top wall, bottom wall and two side walls between the faceplate and backplate; and the aligning step further comprises the steps of: forming a notch in the top wall or the bottom wall, and placing the spacer wall in the notch.
37. A method for assembling a flat panel device, comprising the steps of: mounting a ceramic or glass-ceramic spacer structure between a backplate and faceplate, a plurality of spacer structure holes being formed through the spacer structure; and sealing the backplate and faceplate together to encase the spacer structure in an enclosure.
- 70 -
38. A method as in Claim 37, further comprising the steps of: drilling holes in sheets of ceramic or glass- ceramic material; and attaching the sheets of ceramic or glass-ceramic material together to form the spacer structure.
39. A method for assembling a flat panel device, comprising the steps of: mounting a spacer between a backplate and faceplate; treating surfaces of the spacer to prevent or minimize charge buildup on the spacer surfaces; coating an edge surface of the spacer with edge metallization such that the edge metallization forms
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51805294A JP3595336B2 (en) | 1993-02-01 | 1994-02-01 | Flat panel device with spacer |
| DE69430568T DE69430568T3 (en) | 1993-02-01 | 1994-02-01 | FLAT SCREEN WITH INTERNAL STRUCTURE |
| AU61634/94A AU6163494A (en) | 1993-02-01 | 1994-02-01 | Flat panel device with internal support structure and/or raised black matrix |
| EP94908603A EP0683920B2 (en) | 1993-02-01 | 1994-02-01 | Flat panel device with internal support structure |
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US012,542 | 1993-02-01 | ||
| US08/012,542 US5589731A (en) | 1992-04-10 | 1993-02-01 | Internal support structure for flat panel device |
| US18885794A | 1994-01-31 | 1994-01-31 | |
| US08/188,856 US5477105A (en) | 1992-04-10 | 1994-01-31 | Structure of light-emitting device with raised black matrix for use in optical devices such as flat-panel cathode-ray tubes |
| US188,857 | 1994-01-31 | ||
| US188,856 | 1994-01-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1994018694A1 WO1994018694A1 (en) | 1994-08-18 |
| WO1994018694B1 true WO1994018694B1 (en) | 1994-09-29 |
Family
ID=27359648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1994/000602 WO1994018694A1 (en) | 1993-02-01 | 1994-02-01 | Flat panel device with internal support structure and/or raised black matrix |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0683920B2 (en) |
| JP (1) | JP3595336B2 (en) |
| AU (1) | AU6163494A (en) |
| DE (1) | DE69430568T3 (en) |
| WO (1) | WO1994018694A1 (en) |
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-
1994
- 1994-02-01 JP JP51805294A patent/JP3595336B2/en not_active Expired - Fee Related
- 1994-02-01 WO PCT/US1994/000602 patent/WO1994018694A1/en active IP Right Grant
- 1994-02-01 AU AU61634/94A patent/AU6163494A/en not_active Abandoned
- 1994-02-01 DE DE69430568T patent/DE69430568T3/en not_active Expired - Lifetime
- 1994-02-01 EP EP94908603A patent/EP0683920B2/en not_active Expired - Lifetime
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