Active matrix liquid crystal display device with divisional common electrodes aligned with divisional regions of TFTs
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United States of America Patent
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May 21, 1996
Grant Date -
N/A
app pub date -
May 17, 1993
filing date -
May 19, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A liquid crystal display device comprises a first substrate on which a plurality of thin-film transistors, a plurality of pixel electrodes respectively connected to the thin-film transistors, a plurality of gate lines for connecting gate electrodes of the thin-film transistors, and a plurality of drain lines for connecting drain electrodes of the thin-film transistors are arranged in a matrix pattern, a second substrate on which a plurality of divisional common electrodes which face the plurality of pixel electrodes are formed, and a liquid crystal material encapsulated by the first and second substrates and a sealing member, and interposed between the plurality of pixel electrodes and the plurality of divisional common electrodes. The matrix pattern on the first substrate is formed by a photolithograpy process comprising a step of divisionally exposing photoresist in a plurality of divisional regions by using a stepper. The plurality of divisional common electrodes have sizes corresponding to the divisional regions divisionally exposed by the stepper and are separated from one another.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- CASIO COMPUTER CO., LTD.
International Classification(s)
Inventor(s)
| Inventor Name | Address | # of filed Patents | Total Citations |
|---|---|---|---|
| Okimoto, Hiroyuki | Hino, JP | 6 | 355 |
| Sato, Syunichi | Kawagoe, JP | 13 | 1806 |
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| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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