Method and apparatus for dynamic gray level switching

Details Method and apparatus for dynamic gray level switching Method and apparatus for dynamic gray level switching

2007-07-24

2007-07-24

Shankar, Vijay (Department: 2673)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

Reexamination Certificate

active

10618820

ABSTRACT:
A method and apparatus for gray level dynamic switching. The method is applied to driving a display with at least one pixel. In the method of the present invention, a gray level sequence SGis provided. SGsequentially represents two or more desired gray levels Go(1), . . . , Go(T) of the pixel at consecutive time frames 1, . . . , T and comprises a current gray level Go(t) and a previous gray level Go(t−1) corresponding to time frames t and t−1, respectively. Then, the pixel is driven with an optimized driving force Vd(t) to change the pixel forward to a state corresponding to Go(t) according to Go(t) and Go(t−1). In the present invention, the optimized driving voltage Vd(t) is determined by equations of Vd(t)=Vo(t−1)+ODV and Vd(t)=a×Gd(m)3+b×Gd(m)2+c×Gd(m)+d, wherein the voltage ODV is a minimum voltage capable of obtaining one gray level transition in a determined response time.

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