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

PATENT NO 5519521
SERIAL NO

08063007

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Abstract

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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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Patent Owner(s)

  • CASIO COMPUTER CO., LTD.

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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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