Computer graphics processing and selective visual display system – Display driving control circuitry – Intensity or color driving control
Reexamination Certificate
2006-01-20
2010-06-01
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Intensity or color driving control
Reexamination Certificate
active
07728854
ABSTRACT:
A gamma correction device and method thereof is described herein, in which gray-scale voltages may be generated that correspond with a plurality of gamma values. The gray-scale voltages may be generated by adjusting output ranges of the gray-scale voltages while fixing a gamma correction voltage on a constant level. The gamma correction device may include a gamma correction voltage generator generating a plurality of gamma correction voltages corresponding to a reference gamma value; a gray-scale voltage generation circuit dividing the gamma correction voltages to generate a plurality of sub gray-scale voltage sets each of which includes a sub gray-scale voltage corresponding to each gamma value; and a gray-scale voltage selection circuit outputting one of the sub gray-scale voltages of each sub gray-scale voltage set as a gray-scale voltage.
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Korean Office Action dated Aug. 31, 2006 and English Translation.
Kim Hyoung-Rae
Kim Jong-Seon
Abdin Shaheda A
Harness & Dickey & Pierce P.L.C.
Hjerpe Richard
Samsung Electronics Co,. Ltd.
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