Computer graphics processing and selective visual display system – Display driving control circuitry – Intensity or color driving control
Reexamination Certificate
2006-06-07
2010-02-16
Tran, My-Chau T (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Intensity or color driving control
C345S060000, C345S063000, C345S077000, C345S204000, C345S697000
Reexamination Certificate
active
07663650
ABSTRACT:
A brightness level frequency indicated on a frame basis by an input video signal is accumulated in decreasing order or increasing order of the brightness level so that an accumulated brightness level frequency is calculated for every brightness level. The brightness level corresponding to the accumulated brightness level frequency smaller by a predetermined value than any one of the accumulated brightness level frequencies indicated as maximum is regarded as an effective maximum brightness level. Based on this effective maximum brightness level, the number of sub-fields is determined for assignment to each different brightness segment region. With such a configuration, the resulting display device can lead to favorable halftone representation without causing viewers to feel something is wrong no matter what type of display images.
REFERENCES:
patent: 6747616 (2004-06-01), Honda et al.
patent: 6762567 (2004-07-01), Ide
patent: 6812932 (2004-11-01), Kasahara et al.
patent: 2002/0005842 (2002-01-01), Honda et al.
patent: 2003/0151565 (2003-08-01), Kim et al.
patent: 2004/0135748 (2004-07-01), Yoon et al.
patent: 2004/0150586 (2004-08-01), Urakami et al.
patent: 2004/0155891 (2004-08-01), Kang
patent: 2005/0024354 (2005-02-01), Hosoi et al.
patent: 2005/0243028 (2005-11-01), Usui et al.
patent: 2008/0211741 (2008-09-01), Itakura et al.
patent: 102 03 157 (2003-08-01), None
patent: 11-272228 (1999-10-01), None
patent: 2004-240103 (2004-08-01), None
European Search Report.
Higuchi Yasunori
Hosoi Kenichiro
Shizume Dai
Suzuki Masahiro
Panasonic Corporation
Sughrue & Mion, PLLC
Tran My-Chau T
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