IP Library Granted Patent US 7,723,908
Granted Patent B2
US 7,723,908 · App. 11/484,889 · Granted May 25, 2010

Flat panel display incorporating a control frame

Assignee: Copytele, Inc.
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Quick Facts
Patent No.
US 7,723,908
App. No.
11/484,889
Granted
May 25, 2010
Kind
B2
Abstract

A flat panel display including: a plurality of electrically addressable pixels; a plurality of thin-film transistor driver circuits each being electrically coupled to an associated at least one of the pixels, respectively; a passivating layer on the thin-film transistor driver circuits and at least partially around the pixels; a conductive frame on the passivating layer; and, a plurality of nanostructures on the conductive frame; wherein, exciting the conductive frame and addressing one of the pixels using the associated driver circuit causes the nanostructures to emit electrons that induce the one of the pixels to emit light.

Claims (36)

1. A flat panel display comprising:

an anode comprising:

a plurality of electrically addressable pixels;

a plurality of addressing conductors;

a plurality of thin-film transistor (TFT) driver circuits each being electrically coupled to an associated at least one of said pixels and at least one of said addressing conductors, respectively;

a passivating layer on said thin-film transistor driver circuits and at least partially around said pixels and said addressing conductors; and

a conductive frame on said passivating layer; and

a cathode comprising:

an edge emitter material operable to emit electrons, said edge emitter material having a low work function for emitting electrons, wherein, exciting said conductive frame and addressing one of said pixels using said associated driver circuit causes said cathode to emit electrons that are directed toward a corresponding one of said pixels to induce said pixel to emit light.

2. The display of claim 1 , wherein said electrically addressable pixels are coated with phosphor.

3. The display of claim 1 , further comprising a substrate supporting said pixels, TFT driver circuits, passivating layer and frame.

4. The display of claim 3 , wherein said substrate is transparent.

5. The display of claim 1 , wherein said anode further comprises a transparent substrate supporting said pixels, TFT driver circuits, passivating layer and frame.

6. The display of claim 1 , wherein said conductive frame comprises a plurality of parallel rows of conductors.

7. The display of claim 1 , wherein said conductive frame comprises a plurality of parallel columns of conductors.

8. The display of claim 1 , wherein said conductive frame comprises a matrix of row and column conductors defining a plurality of areas each associated with one of said pixels.

9. The display of claim 1 , further comprising at least one contact pad electrically coupled to said conductive frame.

10. The display of claim 1 , wherein said cathode comprises carbon nanotubes.

11. The display of claim 1 , wherein

each said pixel comprises a conductive pad; and

said driver circuit comprises at least one transistor coupled to said conductive pad.

12. The display of claim 1 , wherein:

each said pixel comprises a conductive pad; and

said driver circuit comprises a first transistor coupled to said conductive pad and a second transistor and capacitor coupled to a gate of said first transistor.

13. A display comprising:

an anode comprising:

a substrate, a plurality of electrically addressable pixels supported on said substrate, a conductive addressing matrix on said substrate and electrically coupled to said pixels, and a conductive frame supported on said substrate; and,

a cathode comprising:

an edge emitter material operable to emit electrons, said edge emitter material having a low work function for emitting electrons, wherein, exciting said conductive frame and addressing one of said pixels causes said cathode to emit electrons toward said addressed pixel to induce said pixel to emit light.

14. The display of claim 13 , wherein said substrate is transparent.

15. The display of claim 13 , further comprising a second substrate oppositely disposed from said substrate, wherein said second substrate is transparent and said light is emitted through said second substrate.

16. The display of claim 13 , wherein said conductive frame comprises a matrix of row and column conductors defining a plurality of areas each associated with one of said pixels.

17. The display of claim 13 , further comprising at least one contact pad electrically coupled to said conductive frame.

18. The display of claim 13 , wherein said cathode comprises carbon nanotubes.

19. The display of claim 13 , wherein each said pixel comprises a conductive pad and at least one transistor coupled to said conductive pad.

20. The display of claim 13 , wherein each said pixel comprises a conductive pad, a first transistor coupled to said conductive pad, and a second transistor and capacitor coupled to a gate of said first transistor.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 17, 2015
From: ITUS CORPORATION
To: ITUS CORPORATION
Reel/Frame 035849/0190 →
CHANGE OF NAME Recorded Oct 29, 2014
From: COPYTELE, INC.
To: ITUS CORPORATION
Reel/Frame 034095/0469 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 6, 2006
From: KRUSOS, DENIS A.; DISANTO, FRANK J.
To: COPYTELE, INC.
Reel/Frame 018278/0829 →
Continuity (7)
Continuation In Part 1097431100 · Oct 27, 2004
Continuation In Part 1078258000 · Feb 19, 2004
Continuation In Part 1076303000 · Jan 22, 2004
Continuation In Part 1010247200 · Mar 20, 2002
Provisional Application 6069804700 · Jul 11, 2005
Provisional Application 6071519100 · Sep 8, 2005
Related Publication 20060290262A1 · Dec 28, 2006