Common voltage compensating circuit and method of...

Details Common voltage compensating circuit and method of... Common voltage compensating circuit and method of...

2005-06-30

2009-06-02

Awad, Amr (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

Reexamination Certificate

active

07542021

ABSTRACT:
A common voltage compensating circuit for a liquid crystal display device includes: a voltage distributing unit outputting a reference voltage; a deviation sensing unit detecting a deviation of a common voltage in a liquid crystal panel and outputting a deviation signal corresponding to the deviation of the common voltage; and a first compensating unit compensating the common voltage and outputting a first compensated common voltage by using the reference voltage, the deviation signal and an output thereof.

REFERENCES:
patent: 5760757 (1998-06-01), Tanaka et al.
patent: 5818402 (1998-10-01), Park et al.
patent: 6317109 (2001-11-01), Lee
patent: 6756958 (2004-06-01), Furuhashi et al.

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