Active matrix liquid crystal display device with divisional comm

Details Active matrix liquid crystal display device with divisional comm Active matrix liquid crystal display device with divisional comm

1993-05-17

1996-05-21

Cross, Anita Pellman

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 57, G02F 1136

Patent

active

055195210

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.

REFERENCES:
patent: 4697887 (1987-10-01), Okada et al.
Patent Abstracts of Japan, vol. 15, No. 433 (P-1271), Nov. 5, 1991, Abstract of JP 3-180 817 (Toshiba) Aug. 6, 1991.
Patent Abstracts of Japan, vol. 14, No. 332 (P-1077), Jul. 17, 1990, Abstract of JP 2-111 920 (Toppan) Apr. 24, 1990.
Patent Abstracts of Japan, vol. 16, No. 60 (P-1312), Feb. 14, 1992, Abstract of JP 3-259 123 (Hitachi) Nov. 19, 1991.

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