IP Library Granted Patent US 8,008,849
Granted Patent B1
US 8,008,849 · App. 12/806,441 · Granted Aug 30, 2011

Flat panel display incorporating control frame

Assignee: Copytele, Inc.
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Quick Facts
Patent No.
US 8,008,849
App. No.
12/806,441
Granted
Aug 30, 2011
Kind
B1
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 (37)

1. A flat panel display comprising:

a plurality of electrically addressable pixels, each of said pixels being electrically addressable by including a conductive pad that is coated with a phosphor;

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

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

a conductive frame on said passivating layer, wherein conductor elements of said frame are positioned between said pixels to substantially surround each of said pixels, and edges of said conductive frame include an insulating layer; and

a plurality of nanostructures on said conductive frame;

a substrate supporting said pixels including said phosphor coated conductive pad, said TFT driver circuits, said passivating layer and said conductive frame,

means for applying a known voltage to said conductive frame, said known voltage being less than an electron emission threshold voltage of said nanostructures; and

means for addressing one of said pixels using said associated driver circuit, wherein said addressing causes application of a voltage to said pixel to create a potential different greater than said emission threshold voltage.

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 3 , further comprising a second substrate oppositely disposed from said substrate supporting said pixels, driver circuits, passivating layer and frame, wherein said second substrate is transparent and said light is emitted through said second substrate.

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 cells 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 nanostructures comprises carbon nanotubes.

11. The display of claim 1 , wherein:

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

12. The display of claim 1 , wherein:

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:

a substrate;

a plurality of electrically addressable pixels supported on said substrate, said electrically addressable pixels being coated with a phosphor,

a passivating layer covering said substrate;

a conductive frame supported on said passivating layer, wherein elements of said conductive frame are positioned between said pixels to substantially surround each of said pixels and edges of said conductive frame include an insulating layer; and,

a plurality of nanostructures on said conductive frame;

means for applying a predetermined voltage to said conductive frame, said predetermined voltage being less than an electronic emission threshold voltage of said nanostructures;

means for addressing one of said pixels to apply a voltage to selected ones of said addressable pixels to create a voltage difference greater than said electronic emission threshold voltage.

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 cells 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 nanostructures 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 10, 2010
From: DISANTO, FRANK J.; KRUSOS, DENIS A.
To: COPYTELE, INC.
Reel/Frame 024972/0521 →
Continuity (7)
Continuation 11378105 · Mar 17, 2006
Continuation In Part 10974311 · Oct 27, 2004
Continuation In Part 10782580 · Feb 19, 2004
Continuation In Part 10763030 · Jan 22, 2004
Continuation In Part 10102472 · Mar 20, 2002
Provisional Application 60698047 · Jul 11, 2005
Provisional Application 60715191 · Sep 8, 2005