Driving circuit for driving liquid crystal display device

Details Driving circuit for driving liquid crystal display device Driving circuit for driving liquid crystal display device

1994-12-21

1996-10-29

Hjerpe, Richard

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 92, 345100, 345147, G09G 336

Patent

active

055701051

ABSTRACT:
In a sampling circuit for a driving circuit for driving an active matrix circuit having signal lines in an active matrix type liquid crystal display device, two switches are connected with each other in series. Further a connection point between two switches is connected with a constant voltage input terminal through another switch or a resistor, to reduce a voltage applied to the TFTs constructing two switches and to perform at high speed operation in the TFTs. When sampling is not performed, the two switches are turned off and a constant voltage is applied from the constant voltage input terminal to the connection point.

REFERENCES:
patent: 5477234 (1995-12-01), Suzuki et al.

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