Patent US4977350A successfully refreshed from Google Patents.
US4977350A
Expired / Lapsed
US
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Color electroluminescence display panel having alternately-extending electrode groups
Assignee: Sharp Corp
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Filing: 1989-05-11
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Granted: 1990-12-11
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Expires: 2009-05-11
Abstract
Abstract A color electroluminescence display panel includes a substrate, a plurality of first and second electrodes disposed orthogonal to each other on the substrate, a luminescence layer interposed between the first and second electrodes, and insulating layers interposed between the electrodes and the luminescence layer, the luminescence layer having a plurality of luminescence layer groups each including a plurality of layer portions of different color luminescence, the first electrodes having a plurality of electrode groups corresponding in number to the luminescence layer groups, each first electrode group including a plurality of electrodes corresponding to the plural layer portions, the electrode groups alternately extending to opposite end portions of the substrate, and the extending end portions of the first electrode and the second electrode being supplied with a luminescence signal therebetween.
Inventors
- 👤 Koichi Tanaka
- 👤 Takuo Yamashita
- 👤 Satoshi Yamaue
- 👤 Hiroaki Nakaya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:00
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; G; G09; G09F; G09F13/00; G09F13/20; G09F13/22; H05B33/02; H05B33/06; H05B33/26; Y; Y10; Y10S; Y10S428/00; Y10S428/917
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
170 words
A color electroluminescence display panel, comprising: a substrate; a plurality of first and second electrodes on said substrate; a luminescence layer interposed between said first and second electrodes; and an insulating layer interposed between each of said first and second electrodes and said luminescence layer; said first and second electrodes extending substantially orthogonal to each other and being maintained in noncontact relation with each other by said interposed luminescence and insulating layers; said luminescence layer comprising a plurality of luminescence layer groups, each including a plurality of layer portions of different color luminescence; and said first electrodes comprising a plurality of electrode groups corresponding to said luminescence layer groups, each including a plurality of electrodes corresponding to said luminescence layer portions of a respective luminescence layer group, all of the plural electrodes of each electrode group extending to the same end portion of said substrate and said electrode groups extending alternately to opposite end portions of said substrate, said first and second electrodes being supplied with a luminescence signal therebetween.
Claim 2
Dependent Claim
170 words
A color electroluminescence display panel, comprising: a substrate; a plurality of first and second electrodes on said substrate; a luminescence layer interposed between said first and second electrodes; and an insulating layer interposed between each of said first and second electrodes and said luminescence layer; said first and second electrodes extending substantially orthogonal to each other and being maintained in noncontact relation with each other by said interposed luminescence and insulating layers; said luminescence layer comprising a plurality of luminescence layer groups, each including a plurality of layer portions of different color luminescence; and said first electrodes comprising a plurality of electrode groups corresponding to said luminescence layer groups, each including a plurality of electrodes corresponding to said luminescence layer portions of a respective luminescence layer group, all of the plural electrodes of each electrode group extending to the same end portion of said substrate and said electrode groups extending alternately to opposite end portions of said substrate, said first and second electrodes being supplied with a luminescence signal therebetween.
Claim 3
Dependent Claim
20 words
A panel according to claim 1 wherein each of said luminescence layer groups emits light in a plurality of colors.
Claim 4
Dependent Claim
25 words
A panel according to claim 1 wherein each of said luminescence layer groups has three layer portions for emitting red, green and blue light, respectively.
Claim 5
Dependent Claim
28 words
A panel according to claim 1 wherein each electrode group of said first electrodes and each of said second electrodes cross in noncontact relation to define one pixel.
Claim 6
Dependent Claim
20 words
A panel according to claim 1 wherein all of said second electrodes extend to an end portion of said substrate.
Claim 7
Dependent Claim
19 words
A panel according to claim 1 wherein said second electrodes extend alternately to opposite end portions of said substrate.
References Cited (Backward Citations)
US4743801A
Cited
US4855641A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-12-10 | 1994-06-11 | 1994-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-10 | 1998-06-11 | 1998-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-10 | 2002-06-11 | 2002-12-11 | $7700.00 | Window Closed / Lapsed |