Driving circuit of a liquid crystal display device for...

Details Driving circuit of a liquid crystal display device for... Driving circuit of a liquid crystal display device for...

2007-04-17

2007-04-17

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S087000, C345S088000, C345S029000, C345S213000, C345S214000

Reexamination Certificate

active

10160037

ABSTRACT:
A driving circuit of a liquid crystal display device includes gate and data lines, a thin film transistor connected to the gate and data lines, and a liquid crystal capacitor connected to the thin film transistor. The driving circuit includes a gate driving unit for generating a gate signal applied to the gate line, a source driving unit for generating a data signal applied to the data line, a gamma power source unit for applying a gamma reference voltage to the source driving unit, a common voltage unit for applying a common voltage to the liquid crystal capacitor, a discharging signal unit for generating a discharging enable signal when a power of the liquid crystal display device is off, and a multiplexer, connected to the common voltage unit and the gamma power source unit, for selectively applying a voltage to the source driving unit according to the discharging enable signal.

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patent: 2002/0041279 (2002-04-01), Chou
patent: 2003/0038768 (2003-02-01), Sakashita

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