Liquid crystal display device

Details Liquid crystal display device Liquid crystal display device

2005-08-16

2005-08-16

Nguyen, Jimmy H. (Department: 2673)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S098000, C345S099000

Reexamination Certificate

active

06930663

ABSTRACT:
An overdrive controller for driving a liquid crystal display includes a change rate Rst calculating section for comprehending a transition state from a present brightness to a targeted brightness for each of R, G and B sub-pixels, a select section for selecting the sub-pixel with the slowest transition and the other sub-pixels from the comprehended transition states, and an overdrive voltage calculating section for calculating a voltage to accelerate a transition of brightness for the sub-pixel with the slowest transition. The overdrive controller further includes, an effective brightness Yst′ calculating section and Yst′ overdrive voltage calculating section for calculating a voltage to accelerate or to decelerate a transition of brightness for the other sub-pixels in order to coordination with each other, wherein the voltage is switched by a switch23to be supplied.

REFERENCES:
patent: 6304254 (2001-10-01), Johnson et al.
patent: 07-121138 (1995-05-01), None

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