Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electrical excitation of liquid crystal
Patent
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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Anno Kouichi
Kawachi Genshiro
Kitajima Masaaki
Ogawa Kazuhiro
Ono Kikuo
Hitachi , Ltd.
Sikes William L.
Ton Toan
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