Gate driving method and apparatus for liquid crystal display...

Details Gate driving method and apparatus for liquid crystal display... Gate driving method and apparatus for liquid crystal display...

2004-06-23

2008-05-20

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S084000, C345S087000, C345S102000

Reexamination Certificate

active

07375718

ABSTRACT:
A gate driving method and apparatus for a liquid crystal display panel is disclosed that minimizes deterioration of picture quality caused by a variation in a gate low voltage. A liquid crystal cell matrix is defined by intersections between gate lines and data lines having corresponding thin film transistors. A gate driver applies a gate high voltage, which is at least equal to the turn-on voltages of the thin film transistors, to the gate lines in a corresponding period, and applies an independent gate low voltage to the gate lines divided into a plurality of blocks as turn-off voltages of the thin film transistors in each block.

REFERENCES:
patent: 6621547 (2003-09-01), Kang
patent: 6639589 (2003-10-01), Kim et al.

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