Claims
- 1. A method for manufacturing a faceplate for a field emission display, comprising depositing on at least a portion of the faceplate a black matrix material selected from boron carbide, silicon carbide, titanium carbide, vanadium carbide and mixtures thereof.
- 2. The method of claim 1 wherein the black matrix material is deposited electrophoretically.
- 3. The method of claim 1 wherein the faceplate is patterned with a photoresist and the black matrix material is deposited within an exposed area of the photoresist.
- 4. The method of claim 1, further comprising the step of depositing phosphor on at least a portion of the faceplate not deposited with the black matrix material.
- 5. The method of claim 4 wherein the faceplate is patterned with a photoresist and the phosphor is deposited within an exposed area of the photoresist.
- 6. The method of claim 4, further comprising the step applying to the black matrix material and the phosphor a binding agent.
- 7. The method of claim 6, further comprising the step of baking the faceplate.
- 8. The method of claim 7 wherein the faceplate is baked at a temperature ranging from 650° C. to 700° C. at atmosphere for a period of time ranging from 10 minutes to 3 hours.
- 9. The method of claim 7 wherein the faceplate is baked at a temperature of about 500° C. under vacuum for a period of time ranging from 1-12 hours.
- 10. The method of claim 7, further comprising the step of assembling a field emission display incorporating the faceplate.
- 11. A faceplate made according to the method of claim 1.
- 12. A field emission display comprising the faceplate of claim 11.
- 13. A method for depositing a black grille on a faceplate of a field emission display, comprising:
contacting the faceplate with an electrophoresis solution, wherein the electrophoresis solution comprises a black matrix material selected from boron carbide, silicon carbide, titanium carbide, vanadium carbide and mixtures thereof, and electrophoretically depositing the black matrix material on at least a portion of the faceplate.
- 14. The method of claim 13 wherein the faceplate is patterned with a photoresist such that the black matrix material is deposited on the faceplate within an exposed area of the photoresist.
- 15. The method of claim 13 wherein phosphor is subsequently deposited on at least a portion of the faceplate not deposited with the black matrix material.
- 16. The method of claim 15 wherein the black matrix material and phosphor are coated with a binder.
- 17. The method of claim 16 wherein the faceplate is baked.
- 18. The method of claim 17, further comprising the step of assembling a field emission display incorporating the faceplate.
- 19. A faceplate made according to the method of claim 13.
- 20. A field emission display comprising the faceplate of claim 19.
- 21. A composition for electrophoretically depositing a black grille on a faceplate of a field emission display, comprising a black matrix material selected from boron carbide, silicon carbide, titanium carbide, vanadium carbide and mixtures thereof.
- 22. The composition of claim 21 wherein the black matrix material is present in the composition in an amount ranging from about 0.03 to 1.0 wt %.
- 23. The composition of claim 21, further comprising an electrolyte in an amount of about 0.001-0.2 wt %.
- 24. The composition of claim 21, further comprising an anti-agglomerating agent in an amount ranging from about 0.03 to 1.0 wt %.
- 25. The composition of claim 21, further comprising water.
- 26. The composition of claim 25 wherein water is present in the composition in an amount up to about 2 wt %.
- 27. A faceplate for a field emission display, comprising a black matrix material deposited on at least a portion of the faceplate, wherein the black matrix material is selected from boron carbide, silicon carbide, titanium carbide, vanadium carbide and mixtures thereof.
- 28. A field emission display comprising the faceplate of claim 27.
- 29. A screen comprising:
a substrate; a conductive layer carried by said substrate and covering a portion of said substrate; and a cathodoluminescent layer carried by said substrate and overlaying a region of said conductive layer; said cathodoluminescent layer including: a first region defining a plurality of non-contiguous sub-regions, and a second region interstitial said sub-regions; said first region comprising light emissive substance and said second region comprising black matrix material.
- 30. The screen of claim 29 wherein said black matric matrix material comprises at least one of boron carbide, titanium carbide, silicon carbide and vanadium carbide.
- 31. The screen of claim 29 wherein said black matrix material is vanadium carbide.
- 32. A field emission display comprising:
an extraction grid having a plurality of openings; an emitter substrate including a plurality of emitters aligned with said plurality of openings; a screen adjacent said extraction grid, said screen comprising:
a substrate; a conductive layer carried by said substrate and covering a portion of said substrate; and a cathodoluminescent layer carried by said substrate and overlaying a region of said conductive layer; said cathodoluminescent layer comprising: a first region defining a plurality of non-contiguous sub-regions, and a second region interstitial said subregions; said first region comprising light emissive material and said second region comprising black matrix material; said sub-regions aligned to respective emitters.
- 33. The field emission display of claim 32 wherein said black matrix material comprises at least one of boron carbide, titanium carbide, silicon carbide and vanadium carbide.
- 34. The screen of claim 32 wherein said black matrix material is vanadium carbide.
- 35. The screen of claim 32 wherein said emitters are arranged in a matrix of rows and columns.
- 36. A display device comprising:
a video signal generator capable of generating an image signal; an electronic controller driven by an image signal from said video signal generator, said electronic controller controlling an array of emitter control circuits; an emitter substrate including an array of emitters, said emitter control circuits individually coupled to individual emitters; an extraction grid having a plurality of openings, said openings aligned with said array of emitters; a screen adjacent said extraction grid, said screen comprising:
a substrate; a conductive layer carried by said substrate and covering a portion of said substrate; and a cathodoluminescent layer carried by said substrate and overlaying a region of said conductive layer; said cathodoluminescent layer including: a first region defining a plurality of non-contiguous sub-regions, and a second region interstitial said sub-regions; said first region comprising phosphor pixels and said second region comprising black matrix material.
- 37. The display device of claim 36 wherein said black matric matrix material comprises at least one of boron carbide, titanium carbide, silicon carbide and vanadium carbide.
- 38. The display device of claim 36 wherein said black matrix material is vanadium carbide.
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application is a continuation-in-part of U.S. application Ser. No. 08/589,039, filed Jan. 19, 1996.
STATEMENT OF GOVERNMENT INTEREST
[0002] This invention was made with Government support under Contract No. DABT63-93-C-0025 awarded by the Advanced Research Projects Agency (ARPA). The Government has certain rights in this invention.
Divisions (2)
|
Number |
Date |
Country |
Parent |
09234087 |
Jan 1999 |
US |
Child |
09541352 |
Mar 2000 |
US |
Parent |
08835295 |
Apr 1997 |
US |
Child |
09234087 |
Jan 1999 |
US |
Continuations (1)
|
Number |
Date |
Country |
Parent |
09541352 |
Mar 2000 |
US |
Child |
09847073 |
May 2001 |
US |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
08589039 |
Jan 1996 |
US |
Child |
08835295 |
Apr 1997 |
US |