Computer graphics processing and selective visual display system – Display driving control circuitry
Reexamination Certificate
2006-05-10
2011-11-15
Mengistu, Amare (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
C345S207000
Reexamination Certificate
active
08059109
ABSTRACT:
To provide a display device whose display can be recognized even in dark places or under the strong outside light. The display device performs display by controlling the number of gray scales in accordance with the intensity of outside light, which means a display mode can be switched in accordance with the data to be displayed on the display screen. A video signal generation circuit is controlled in each display mode in such a manner that it directly outputs an input video signal with an analog value, outputs a signal with a binary digital value, or outputs a signal with a multivalued digital value. As a result, gray scales displayed in pixels are timely changed. Accordingly, clear images can be displayed while maintaining high visibility in various environments, in the wide range from, for example, dark places or indoors (e.g., under a fluorescent lighting) to outdoors (e.g., under the sunlight).
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Fukumoto Ryota
Kimura Hajime
Koyama Jun
Osame Mitsuaki
Tanada Yoshifumi
Fish & Richardson P.C.
Mengistu Amare
Semiconductor Energy Laboratory Co,. Ltd.
Xavier Antonio
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