US5453659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anode plate for flat panel display having integrated getter
Assignee: Texas Instruments Inc
•
Filing: 1994-06-10
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Granted: 1995-09-26
•
Expires: 2014-06-10
Abstract
Abstract An anode plate 40 for use in a field emission flat panel display device comprises a transparent planar substrate 42 having a plurality of electrically conductive, parallel stripes 46 comprising the anode electrode of the device, which are covered by phosphors 48 R , 48 G and 48 B , and a gettering material 52 in the interstices of the stripes 46. The gettering material 52 is preferably selected from among zirconium-vanadium-iron and barium. The getter 52 may be thermally reactivated by passing a current through it at selected times, or by electron bombardment from microtips on the emitter substrate. The getter 52 may be formed on a substantially opaque, electrically insulating material 50 affixed to substrate 42 in the spaces formed between conductors 46, which acts as a barrier to the passage of ambient light into and out of the device. Methods of fabricating the getter stripes 52 on the anode plate 40 are disclosed.
Inventors
- 👤 Robert M. Wallace
- 👤 Bruce E. Gnade
- 👤 Chi-Cheong Shen
- 👤 Jules D. Levine
- 👤 Robert H. Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:20
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/94; H01J29/02; H01J29/08; H01J29/085; H01J2329/00
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
43 words
An anode plate for use in a field emission device, said anode plate comprising: a substantially transparent substrate having spaced-apart, electrically conductive regions on said substrate and luminescent material overlaying said conductors; and gettering material between said conductive regions and electrically isolated therefrom.
Claim 2
Dependent Claim
43 words
An anode plate for use in a field emission device, said anode plate comprising: a substantially transparent substrate having spaced-apart, electrically conductive regions on said substrate and luminescent material overlaying said conductors; and gettering material between said conductive regions and electrically isolated therefrom.
Claim 3
Dependent Claim
31 words
The anode plate in accordance with claim 1 wherein said spaced-apart, electrically conductive regions comprise stripes, and further wherein said gettering material is in the interstices of said electrically conductive stripes.
Claim 4
Dependent Claim
31 words
The anode plate in accordance with claim 1 further including electrically insulating material on said substrate in the spaces between said conductors, said gettering material being affixed to said insulating material.
Claim 5
Dependent Claim
14 words
The anode plate in accordance with claim 3 wherein said insulating material comprises glass.
Claim 6
Dependent Claim
21 words
The anode plate in accordance with claim 1 wherein said gettering material is selected from the group comprising zirconium-vanadium-iron and barium.
Claim 7
Dependent Claim
17 words
The anode plate in accordance with claim 1 wherein said luminescent material comprises a particulate phosphorescent material.
Claim 8
Dependent Claim
17 words
The anode plate in accordance with claim 1 wherein said luminescent material comprises a thin-film phosphorescent material.
Claim 9
Dependent Claim
52 words
An anode plate tier use in a field emission device, said anode plate comprising: a substantially transparent substrate having spaced-apart, electrically conductive stripes on said substrate and luminescent material overlaying said conductors; an electrically insulating material on said substrate in the interstices of said stripes; and gettering material on said insulating material.
Claim 10
Dependent Claim
52 words
An anode plate tier use in a field emission device, said anode plate comprising: a substantially transparent substrate having spaced-apart, electrically conductive stripes on said substrate and luminescent material overlaying said conductors; an electrically insulating material on said substrate in the interstices of said stripes; and gettering material on said insulating material.
Claim 11
Dependent Claim
21 words
The anode plate in accordance with claim 8 wherein said gettering material is selected from the group comprising zirconium-vanadium-iron and barium.
Claim 12
Dependent Claim
17 words
The anode plate in accordance with claim 8 wherein said luminescent material comprises a particulate phosphorescent material.
Claim 13
Dependent Claim
17 words
The anode plate in accordance with claim 8 wherein said luminescent material comprises a thin-film phosphorescent material.
Claim 14
Dependent Claim
58 words
An electron emission display apparatus comprising: an emitter structure including means for emitting electrons; and a display panel having a substantially planar face opposing said emitter structure, said display panel comprising a substantially transparent substrate; spaced-apart, electrically conductive stripes on said substrate; luminescent material overlaying said conductive stripes; and gettering material in the interstices of said conductive stripes.
Claim 15
Dependent Claim
58 words
An electron emission display apparatus comprising: an emitter structure including means for emitting electrons; and a display panel having a substantially planar face opposing said emitter structure, said display panel comprising a substantially transparent substrate; spaced-apart, electrically conductive stripes on said substrate; luminescent material overlaying said conductive stripes; and gettering material in the interstices of said conductive stripes.
Claim 16
Dependent Claim
35 words
The electron emission display apparatus plate in accordance with claim 12 further including electrically insulating material on said substrate in the spaces between said conductive stripes, said gettering material being affixed to said insulating material.
Claim 17
Dependent Claim
17 words
The electron emission display apparatus plate in accordance with claim 13 wherein said insulating material comprises glass.
Claim 18
Dependent Claim
19 words
The electron emission display apparatus plate in accordance with claim 12 further including means for activating said gettering material.
Claim 19
Dependent Claim
25 words
The electron emission display apparatus plate in accordance with claim 15 wherein said activating means comprises means for coupling thermal energy to said gettering material.
Claim 20
Dependent Claim
30 words
The electron emission display apparatus plate in accordance with claim 16 wherein said coupling means comprises terminals of said gettering material adapted for coupling a source of electrical current thereto.
Claim 21
Dependent Claim
32 words
The electron emission display apparatus plate in accordance with claim 16 wherein said means for coupling thermal energy comprises means for accelerating electrons emitted by said emitting means onto said gettering material.
Claim 22
Dependent Claim
28 words
The electron emission display apparatus plate in accordance with claim 18 wherein said accelerating means comprises a voltage source coupled between said emitting means and said gettering material.
Claim 23
Dependent Claim
24 words
The electron emission display apparatus plate in accordance with claim 12 wherein said gettering material is selected from the group comprising zirconium-vanadium-iron and barium.
Claim 24
Dependent Claim
32 words
The electron emission display apparatus plate in accordance with claim 12 wherein the space between said emitter structure and said display panel is evacuated to a pressure of approximately 10 -7 torr.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-09-25 | 1999-03-27 | 1999-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-09-25 | 2003-03-27 | 2003-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-09-25 | 2007-03-27 | 2007-09-26 | $7700.00 | Window Closed / Lapsed |