Computer graphics processing and selective visual display system – Display driving control circuitry
Reexamination Certificate
2005-07-28
2010-02-02
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
C345S098000, C345S099000, C345S100000, C345S102000
Reexamination Certificate
active
07656398
ABSTRACT:
A surface light source device includes light source driving means for driving light sources on a light emission block basis, a light exit area being sectioned into two or more light emission blocks, light quantity detecting means for detecting light quantities on the basis of output light beams that are led out from the two or more light emission blocks, and drive control means for adjusting emission light quantities of the light sources corresponding to the respective light emission blocks on the basis of light quantities that are detected during lighting periods when only one of the light emission blocks is lit up that are subjected to light quantity detection by the light quantity detecting means.
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Sakai Seiji
Sakamoto Takuya
Yoneda Toshiyuki
Buchanan & Ingersoll & Rooney PC
Hjerpe Richard
Mitsubishi Denki & Kabushiki Kaisha
Shapiro Leonid
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