Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2004-06-28
2008-12-16
Nguyen, Chanh (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S084000
Reexamination Certificate
active
07466301
ABSTRACT:
A driving method and apparatus for a liquid crystal display stabilizing variations in the brightness of a back light dependent upon brightness components extracted from data to be displayed are disclosed. In the method, the brightness components of each frame are arranged into a histogram, which is divided into a plurality of brightness areas. The most-frequent value of the brightness components or the average value of the brightness components is extracted. The brightness of a back light is controlled to correspond to the brightness areas to which the extracted most-frequent value or the average value belongs. One or more particular areas within the brightness areas are selected such that if the extracted most-frequent value or the average value belongs to the particular areas, the brightness of the back light may not be changed in successive frames.
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Preliminary Notice of Reasons for Rejection for corresponding Japanese Patent Application Serial No. 2004-192074, dated Nov. 27, 2007.
Baik Seong Ho
Sohn Min Ho
Brinks Hofer Gilson & Lione
Karimi Pegeman
LG Display Co. Ltd.
Nguyen Chanh
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