Driving apparatus for liquid crystal display

Details Driving apparatus for liquid crystal display Driving apparatus for liquid crystal display

2004-06-29

2008-10-07

Awad, Amr (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S209000, C345S698000

Reexamination Certificate

active

07432901

ABSTRACT:
A driving apparatus for a liquid crystal display that reduces a residual direct current component from flowing in a liquid crystal is disclosed. In the apparatus, a liquid crystal display panel has liquid crystal cells at crossing of gate lines and data lines. An image signal processor separates a television image signal from a complex image signal and converts a polarity of the television image signal in response to a polarity inversion signal. A timing controller generates the gate control signal for time-dividing the plurality of gate lines to sequentially drive them during one horizontal period and driving the gate lines during one horizontal period and then applying it to the gate driver, and that generates the polarity inversion signal inverted for each one horizontal period and then applying it to the image signal processor.

REFERENCES:
patent: 5365284 (1994-11-01), Matsumoto et al.
patent: 7068249 (2006-06-01), Kwon
patent: 1276590 (2000-12-01), None
patent: 2000267618 (2000-09-01), None
patent: 10020010001483 (2001-01-01), None

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