Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2003-12-12
2010-12-07
Sherman, Stephen G (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C315S169400, C345S690000
Reexamination Certificate
active
07847757
ABSTRACT:
Prepared is brightness frequency data that indicates the number of pixels, having the same brightnesses in a brightness distribution for each of the fields represented by an input image signal. Based on the brightness frequency data, the number of subfields for emission at each brightness in a brightness region is adjusted for each of at least two brightness regions. As a result, the greater the frequency indicating the total number of pixels at each of the same brightnesses in a brightness region, the larger the number of subfields allocated to that brightness region. Therefore, satisfactory grayscale representation suitable to human visual characteristics is achieved.
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Honda Hirofumi
Nagakubo Tetsuro
Okushima Takashi
Shigeta Tetsuya
Urakami Hiroyuki
Drinker Biddle & Reath LLP
Panasonic Corporation
Sherman Stephen G
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