IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0107006
(2005-04-15)
|
등록번호 |
US-7276844
(2007-10-02)
|
발명자
/ 주소 |
- Bouchard,Robert Joseph
- Cheng,Lap Tak Andrew
- Lavin,John Gerald
- Roach,David Herbert
|
출원인 / 주소 |
- E. I. du Pont de Nemours and Company
|
인용정보 |
피인용 횟수 :
6 인용 특허 :
18 |
초록
▼
This invention provides a process for improving the field emission of an electron field emitter comprised of an acicular emitting substance such as acicular carbon, an acicular semiconductor, an acicular metal or a mixture thereof, comprising applying a force to the surface of the electron field emi
This invention provides a process for improving the field emission of an electron field emitter comprised of an acicular emitting substance such as acicular carbon, an acicular semiconductor, an acicular metal or a mixture thereof, comprising applying a force to the surface of the electron field emitter wherein the force results in the removal of a portion of the electron field emitter thereby forming a new surface of the electron field emitter.
대표청구항
▼
What is claimed is: 1. A field emitter cathode comprising (a) a substrate, and (b) a field emitter cathode paste composition comprising a composition of carbon nanotubes, particles and one or more members of the group consisting of a photoinitiator, a developable binder and a photohardenable monome
What is claimed is: 1. A field emitter cathode comprising (a) a substrate, and (b) a field emitter cathode paste composition comprising a composition of carbon nanotubes, particles and one or more members of the group consisting of a photoinitiator, a developable binder and a photohardenable monomer. 2. The cathode of claim 1 wherein the carbon nanotubes are single wall carbon nanotubes. 3. The cathode of claim 1 wherein the cathode composition resides on a surface of the substrate as a layer. 4. A field emitter cathode comprising (a) a substrate, and (b) a field emitter cathode paste composition comprising a composition of carbon nanotubes and particles, wherein nanotubes are present in the cathode composition in an amount of less than 9 weight percent. 5. A field emission display device comprising (a) an anode; and (b) a cathode wherein the cathode comprises (i) a substrate, (ii) an electrically conducting film deposited on the substrate, and (iii) a field emission cathode paste composition that is overprinted on the electrically conducting film, wherein the cathode paste composition comprises carbon nanotubes, particles and one or more members of the group consisting of a photoinitiator, a developable binder and a photohardenable monomer. 6. The display device of claim 5 wherein the carbon nanotubes are single wall carbon nanotubes. 7. The display device of claim 5 wherein the cathode composition resides on a surface of the substrate as a layer. 8. A field emission display device comprising (a) an anode; and (b) a cathode wherein the cathode comprises (i) a substrate, (ii) an electrically conducting film deposited on the substrate, and (iii) a field emission cathode paste composition comprising carbon nanotubes and particles that is overprinted on the electrically conducting film, wherein nanotubes are present in the cathode composition in an amount of less than 9 weight percent. 9. The cathode of claim 1 wherein the carbon nanotubes are aligned. 10. The cathode of claim 1 wherein the carbon nanotubes are multi-wall carbon nanotubes. 11. The cathode of claim 1 wherein nanotubes are present in the cathode composition in an amount of less than about 5 weight percent. 12. The cathode of claim 1 wherein nanotubes are present in the cathode composition in an amount of from about 0.01 weight percent to about 2 weight percent. 13. The cathode of claim 1 which is fabricated into in a flat panel computer, a television, a display, a vacuum electronic device, an emission gate amplifier, a klystron or a lighting device. 14. The cathode of claim 1 wherein the particles are metal particles. 15. The cathode of claim 1 wherein the particles are silver particles. 16. The cathode of claim 1 wherein the carbon nanotubes protrude from the surface. 17. The display device of claim 5 wherein the carbon nanotubes are aligned. 18. The display device of claim 5 wherein the carbon nanotubes are multi-wall carbon nanotubes. 19. The display device of claim 5 wherein nanotubes are present in the cathode composition in an amount of less than about 5 weight percent. 20. The display device of claim 5 wherein nanotubes are present in the cathode composition in an amount of from about 0.01 weight percent to about 2 weight percent. 21. The display device of claim 5 which is fabricated into in a flat panel computer, a television, a display, a vacuum electronic device, an emission gate amplifier, a klystron or a lighting device. 22. The display device of claim 5 wherein the particles are metal particles. 23. The display device of claim 5 wherein the particles are silver particles. 24. The display device of claim 5 wherein the carbon nanotubes protrude from the surface. 25. The cathode of claim 4 wherein the particles are metal particles. 26. The cathode of claim 4 wherein the particles are silver particles. 27. The cathode of claim 4 wherein the carbon nanotubes protrude from the surface. 28. The cathode of claim 4 which is fabricated into in a flat panel computer, a television, a display, a vacuum electronic device, an emission gate amplifier, a klystron or a lighting device. 29. The cathode of claim 4 wherein nanotubes are present in the cathode composition in an amount of less than about 5 weight percent. 30. The cathode of claim 4 wherein nanotubes are present in the cathode composition in an amount of from about 0.01 weight percent to about 2 weight percent. 31. The display device of claim 8 wherein nanotubes are present in the cathode composition in an amount of less than about 5 weight percent. 32. The display device of claim 8 wherein nanotubes are present in the cathode composition in an amount of from about 0.01 weight percent to about 2 weight percent. 33. The display device of claim 8 which is fabricated into in a flat panel computer, a television, a display, a vacuum electronic device, an emission gate amplifier, a klystron or a lighting device. 34. The display device of claim 8 wherein the particles are metal particles. 35. The display device of claim 8 wherein the particles are silver particles. 36. The display device of claim 8 wherein the carbon nanotubes protrude from the surface. 37. The cathode of claim 1 wherein the carbon nanotubes are laser ablation grown single wall carbon nanotubes. 38. The cathode of claim 4 wherein the carbon nanotubes are laser ablation grown single wall carbon nanotubes. 39. The display device of claim 5 wherein the carbon nanotubes are laser ablation grown single wall carbon nanotubes. 40. The display device of claim 8 wherein the carbon nanotubes are laser ablation grown single wall carbon nanotubes.
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