Patent US5299041A successfully refreshed from Google Patents.
US5299041A
Expired / Lapsed
US
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Active matrix, high definition, liquid crystal display structure
Assignee: Zarbana Digital Fund LLC
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Filing: 1992-07-09
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Granted: 1994-03-29
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Expires: 2012-07-09
Abstract
Abstract This color display structure for color display purposes has a first and second spaced, transparent substrates, between which is interposed a liquid crystal film (6), the first substrate (2) essentially supporting color filters (124) resistant to high temperatures and separated by black matrixes (126), a first transparent, passivating layer (128) deposited on the entire surface occupied by the filters and the black matrixes, thin film transistors (8, 9), formed on the first passivating layer facing the black matrixes so as to be protected from the ambient light, first transparent capacitor plates (10) formed on the first passivating layer facing the color filters and connected to the transistors, electrode rows (14) and columns (12) for controlling these transistors and a second transparent passivating layer (20) covering the transistors, the first plates, the rows and the columns, the second substrate (4) essentially having the second transparent capacitor plate.
Inventors
- 👤 Francois Morin
- 👤 Yannick Chouan
- 👤 Bruno Vinouze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:02
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133512; G02F1/136; G02F1/1362; G02F1/136213; G02F1/1368
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
165 words
Active matrix, liquid crystal screen structure having a first and a second transparent substrates (2, 4) spaced from one another and between which is interposed a liquid crystal film (6), the first substrate (2) essentially supporting colour filters (124) resistant to high temperatures and separated by black matrixes (126), a first transparent, passivating layer (128) deposited on the entire surface occupied by the filters and the black matrixes, thin film transistors (8, 9) formed on the first passivating layer facing the black matrixes so as to be protected from the ambient light, first, transparent, capacitor plates (10), formed on the first passivating layer facing the colour filters, each first plate being connected to a thin film transistor, electrode rows (14) and columns (12) for controlling said transistors and a second transparent, passivating layer (20) covering the transistors, the first plates, the rows and the columns, the second substrate (4) essentially having the second transparent capacitor plate (28), said second plates facing the first capacitor plates.
Claim 2
Dependent Claim
165 words
Active matrix, liquid crystal screen structure having a first and a second transparent substrates (2, 4) spaced from one another and between which is interposed a liquid crystal film (6), the first substrate (2) essentially supporting colour filters (124) resistant to high temperatures and separated by black matrixes (126), a first transparent, passivating layer (128) deposited on the entire surface occupied by the filters and the black matrixes, thin film transistors (8, 9) formed on the first passivating layer facing the black matrixes so as to be protected from the ambient light, first, transparent, capacitor plates (10), formed on the first passivating layer facing the colour filters, each first plate being connected to a thin film transistor, electrode rows (14) and columns (12) for controlling said transistors and a second transparent, passivating layer (20) covering the transistors, the first plates, the rows and the columns, the second substrate (4) essentially having the second transparent capacitor plate (28), said second plates facing the first capacitor plates.
Claim 3
Dependent Claim
24 words
Structure according to claim 1, characterized in that the second substrate (4) has a continuous conductive plate (28) serving as a second capacitor plate.
Claim 4
Dependent Claim
17 words
Structure according to claim 1, characterized in that the transistors are of the "gate on top" type.
Claim 5
Dependent Claim
24 words
Structure according to claim 1, characterized in that the colour filters and black matrixes are able to resist temperatures of at least 180° C.
Claim 6
Dependent Claim
22 words
Structure according to claim 1, characterized in that the colour filters and black matrixes are formed in a pigment-containing, cross-linked polyimide layer.
Claim 7
Dependent Claim
21 words
Structure according to claim 1, characterized in that the first passivating layer is a chemical vapour deposited, amorphous hydrogenated carbon layer.
Claim 8
Dependent Claim
31 words
Structure according to claim 1, characterized in that the filters are in the form of blocks, each filter having a surface at the most equal to that of each capacitor plate.
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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) | 1997-03-28 | 1997-09-27 | 1998-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-03-28 | 2001-09-27 | 2002-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-03-28 | 2005-09-27 | 2006-03-29 | $7700.00 | Window Closed / Lapsed |