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US5739878A
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US
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Liquid crystal display having common electrode with portions removed at thin film transistors
Assignee: Samsung Display Co Ltd
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Filing: 1996-03-08
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Granted: 1998-04-14
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Expires: 2016-03-08
Abstract
Abstract An LCD device with reduced off-current comprising one glass substrate on which a TFT array, a first ITO common electrode and data gate line are formed, a confronting glass substrate joined to the other glass substrate and on which a color filter array and a second ITO common electrode are formed, and a liquid crystal poured between the joined glass substrates. Part of the second ITO common electrode positionally corresponding to a respective TFT is eliminated, thereby preventing electrons from gathering on the upper surface of the thin film transistor (TFT).
Inventors
- 👤 Byung-seong Bae
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:47
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1343; G02F1/134309; G02F1/134336; G02F1/136; G02F1/1362; G02F1/1368; G02F2201/00; G02F2201/12; G02F2201/121
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
100 words
A liquid crystal display device, comprising: a first substrate on which an array of thin film transistors, a first ITO electrode, and a gate line are formed; a second substrate on which an array of color filters and a second ITO electrode are formed, wherein said first and second substrates are joined so as to define a space therebetween; and a liquid crystal provided in said space between said joined first and second substrates, wherein at least one portion of said second ITO electrode, positionally corresponding to a thin film transistor of said array of thin film transistors, is removed.
Claim 2
Dependent Claim
100 words
A liquid crystal display device, comprising: a first substrate on which an array of thin film transistors, a first ITO electrode, and a gate line are formed; a second substrate on which an array of color filters and a second ITO electrode are formed, wherein said first and second substrates are joined so as to define a space therebetween; and a liquid crystal provided in said space between said joined first and second substrates, wherein at least one portion of said second ITO electrode, positionally corresponding to a thin film transistor of said array of thin film transistors, is removed.
Claim 3
Independent Claim
100 words
A method for manufacturing a liquid crystal display device, comprising the steps of: providing a first substrate having an array of thin film transistors, a first ITO electrode, and a gate line formed thereon; providing a second substrate having an array of color filters and a second ITO electrode formed thereon; removing at least one portion of the second electrode positionally corresponding to a thin film transistor on the first substrate; joining the first and second substrates such that a space is defined therebetween; and depositing a liquid crystal in the space defined between the joined first and second substrates.
Claim 4
Independent Claim
100 words
A method for manufacturing a liquid crystal display device, comprising the steps of: providing a first substrate having an array of thin film transistors, a first ITO electrode, and a gate line formed thereon; providing a second substrate having an array of color filters and a second ITO electrode formed thereon; removing at least one portion of the second electrode positionally corresponding to a thin film transistor on the first substrate; joining the first and second substrates such that a space is defined therebetween; and depositing a liquid crystal in the space defined between the joined first and second substrates.
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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) | 2001-04-13 | 2001-10-13 | 2002-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-04-13 | 2005-10-13 | 2006-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-04-13 | 2009-10-13 | 2010-04-14 | $7700.00 | Window Closed / Lapsed |