Patent US5600460A successfully refreshed from Google Patents.
US5600460A
Expired / Lapsed
US
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Method of repairing a signal line open circuit by connecting each side of the signal line to an adjacent pixel electrode
Assignee: Hitachi Ltd
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Filing: 1994-11-08
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Granted: 1997-02-04
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Expires: 2014-11-08
Abstract
Abstract A method of manufacturing a liquid crystal display substrate, comprising the step of checking the disconnection of a wiring layer formed on a liquid crystal side face of at least one of the transparent substrates which are arranged to confront each other through a liquid crystal. There is added the step of repairing the disconnection by attaching a conductive material to the disconnected portion of the wiring layer. Thus, the disconnection can be repaired remarkably easily and reliably.
Inventors
- 👤 Hideaki Yamamoto
- 👤 Mitsuo Nakatani
- 👤 Haruo Matsumaru
- 👤 Susumu Niwa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:06
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/1306; G02F1/1309; G02F1/133; G02F1/136; G02F1/1362; G02F1/136259; G02F1/136263
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
98 words
A method of manufacture of a transparent substrate for use in a liquid crystal display device, said transparent substrate including a plurality of pixel electrodes and a plurality of wiring strips disposed between said plurality of pixel electrodes on a surface thereof, said method of manufacture including a step of electrically connecting respective sides of an undesired open circuit in said plurality of wiring strips caused during substrate fabrication, said step of electrically connecting including forming an electro-conductive path between said respective sides of the undesired open circuit and one of said plurality of pixel electrodes adjacent thereto.
Claim 2
Independent Claim
98 words
A method of manufacture of a transparent substrate for use in a liquid crystal display device, said transparent substrate including a plurality of pixel electrodes and a plurality of wiring strips disposed between said plurality of pixel electrodes on a surface thereof, said method of manufacture including a step of electrically connecting respective sides of an undesired open circuit in said plurality of wiring strips caused during substrate fabrication, said step of electrically connecting including forming an electro-conductive path between said respective sides of the undesired open circuit and one of said plurality of pixel electrodes adjacent thereto.
Claim 3
Dependent Claim
47 words
A method of manufacture according to claim 1, wherein said electro-conductive path is formed by placing electro-conductive material adjacent to said undesired open circuit and projecting a laser beam onto said electro-conductive material so that said electro-conductive material forms said electro-conductive path in a resultant chemical reaction.
Claim 4
Dependent Claim
16 words
A method of manufacture according to claim 2, wherein said electro-conductive material is in gas phase.
Claim 5
Dependent Claim
16 words
A method of manufacture according to claim 2, wherein said electro-conductive path is made of chromium.
Claim 6
Dependent Claim
16 words
A method of manufacture according to claim 2, wherein said electro-conductive path is made of molybdenum.
Claim 7
Dependent Claim
16 words
A method of manufacture according to claim 2, wherein said electro-conductive path is made of tungsten.
Claim 8
Dependent Claim
16 words
A method of manufacture according to claim 1, wherein said electro-conductive path is made of platinum.
References Cited (Backward Citations)
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US4711790A
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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) | 2000-02-04 | 2000-08-05 | 2001-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-02-04 | 2004-08-05 | 2005-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-02-04 | 2008-08-05 | 2009-02-04 | $7700.00 | Window Closed / Lapsed |