Liquid crystal display device

Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electrical excitation of liquid crystal

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Details

349138, 257 59, 257347, G02F 1136, G02F 1333, H01L 2904, H01L 2701

Patent

active

057215960

ABSTRACT:
An active matrix liquid crystal display device has a semiconductor substrate on which a plurality of pixel (including a plurality of pixel transistors and a plurality of pixel electrodes) arranged at positions determined by a plurality of data bus lines and a plurality of scanning bus lines, a counter substrate provided opposite the pixel electrodes, and a liquid crystal material provided between the semiconductor substrate and the counter substrate. Semiconductor regions having a conductivity opposite that of the semiconductor substrate are formed under the pixel transistors with an insulating film provided therebetween, such that a potential of the semiconductor regions, varies, e.g., is time dependant.

REFERENCES:
patent: 4907053 (1990-03-01), Ohmi
patent: 4936930 (1990-06-01), Mizutani
patent: 5079607 (1992-01-01), Sakurai
patent: 5135300 (1992-08-01), Toide et al.
patent: 5359219 (1994-10-01), Hwang
patent: 5426526 (1995-06-01), Yamamoto et al.

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