Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-07-31
2007-07-31
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S098000, C315S169300
Reexamination Certificate
active
09919832
ABSTRACT:
There is provided a portable information apparatus including an EL display device which can reduce consumed electric power at the time when a still picture is displayed. In the EL display device included in the portable information apparatus, a plurality of memory circuits and a D/A converter are arranged in a pixel. When the EL display device displays the still picture, picture display functions other than the EL display device and control circuits for controlling the EL display device are stopped, so that the portable information apparatus capable of reducing the consumed electric power can be obtained.
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Koyama Jun
Yamazaki Shunpei
Fatahi-yar M.
Hjerpe Richard
Semiconductor Energy Laboratory Co,. Ltd.
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