Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electrical excitation of liquid crystal
Patent
1996-09-11
1998-02-24
Sikes, William L.
Liquid crystal cells, elements and systems
Particular excitation of liquid crystal
Electrical excitation of liquid crystal
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.
Canon Kabushiki Kaisha
Sikes William L.
Ton Toan
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