Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-02-27
2008-08-26
Awad, Amr (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
Reexamination Certificate
active
07417612
ABSTRACT:
A gamma voltage generator for a liquid crystal display (LCD) capable of removing residual images by compensating a gamma voltage is presented. The gamma voltage generation apparatus adjusts the common voltage by the kickback voltage for the intermediate gray level, and tunes the gamma voltages other than the intermediate gray level gamma voltage. The adjustment of the gamma voltages other than the intermediate gray level gamma voltage is achieved in such a manner that the difference between the intermediate gray level kickback voltage and the kickback voltage at one of the gray levels other than the intermediate gray level is equal to half of the difference between the sum of the two inverted gamma voltages representing the intermediate gray level gamma voltages and the sum of the two inverted gamma voltages corresponding to the selected gray level.
REFERENCES:
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patent: 6714182 (2004-03-01), Hong
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patent: 2000-134507 (2000-05-01), None
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English Language Abstract, JP Patent First Publication No. 2000-134507, May 12, 2000, 1 page.
Kim Young-Gil
Lee Byoung-Jun
Lee Hyun-Su
Lee Jun-Pyo
Moon Hoi-Sik
Awad Amr
MacPherson Kwok & Chen & Heid LLP
Samsung Electronics Co,. Ltd.
Sherman Stephen G
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