Active matrix LCD device with image signal lines having a multil

Details Active matrix LCD device with image signal lines having a multil Active matrix LCD device with image signal lines having a multil

1994-12-21

1998-05-12

Sikes, William L.

Liquid crystal cells, elements and systems

Particular excitation of liquid crystal

Electrical excitation of liquid crystal

349139, 257 59, 257 72, G02F 1136, G02F 11343, H01L 2904, H01L 31036

Patent

active

057513813

ABSTRACT:
A liquid crystal display device and a manufacturing method therefor are provided where the number of processes for manufacturing TFT substrates can be decreased and a high production yield can be attained. To attain these objects, an image signal bus-line includes at least a transparent conductive film and a semiconductor layer. A pattern of the transparent conductive film extends up to a thin film transistor to form its drain electrode, and a pattern of a semiconductor layer extends up to the transistor to form its source electrode. By virtue of these arrangements, the thin film transistor substrate can be manufactured using as little as three or four photolithography processes.

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