Computer graphics processing and selective visual display system – Display driving control circuitry
Reexamination Certificate
2011-08-16
2011-08-16
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Reexamination Certificate
active
07999800
ABSTRACT:
In order to achieve lower power consumption, a technique of performing display (partial display) by utilizing only a part of a display area is used. For example, a display area is divided, a plurality of driver circuits for driving the divided display areas independently are provided, and only a region where a fixed pattern is displayed is driven in a power saving mode, thereby partial display is performed; however, display cannot be performed at an arbitrary position. Alternatively, partial display can be performed by inputting a video signal to a pixel in an arbitrary display area; however, a structure of a driver circuit is complicated. The object of the invention is to provide a display device which can perform partial display at an arbitrary position and reduce power consumption. In partial display, operation of a signal line driver circuit is set so as to be stopped and a non-display signal is set so as to be outputted from the signal line driver circuit when a pixel in a non-display area is selected.
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Arasawa Ryo
Iwabuchi Tomoyuki
Hjerpe Richard
Husch & Blackwell LLP
Schnirel Andrew
Semiconductor Energy Laboratory Co,. Ltd.
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