Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-05-22
2007-05-22
Osorio, Ricardo (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S045000
Reexamination Certificate
active
09833673
ABSTRACT:
The present invention is intended to suppress power consumption of an EL display. In accordance with the brightness of an image to be displayed in a pixel portion, the contrast of the image is determined whether to be inverted or not, and the number of bits of the digital video signal to be input into the pixel portion is reduced, and the magnitude of a current to flow through the EL element is allowed to be maintained at a constant level even when a temperature of an EL layer changes by providing the EL display with another EL element to be used for monitoring a temperature.
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Koyama Jun
Osada Mai
Osame Mitsuaki
Yamazaki Shunpei
Fish & Richardson P.C.
Osorio Ricardo
Semiconductor Energy Laboratory Co,. Ltd.
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