Electro-optical device and driving method of the same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7151511
APP PUB NO 20020018029A1
SERIAL NO

09912596

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In the electro-optical device for carrying out an image display by using n-bit (n is a natural number) digital image signals, one pixel incorporates n.times.m (m is a natural number) memory circuits, and has a function to store the digital image signals for m frames in the pixel (in examples shown in the drawings, n=3, m=2, and memory circuits A1 to A3 and B1 to B3 store signals for 3 bits.times.2 frames). Thus, in the display of a still picture, the digital image signals once stored in the memory circuits are repeatedly read out and a display is carried out for each frame, so that driving of a source signal line driver circuit is stopped during the display. Thus, the electric power consumption of the electro-optical device is reduced.

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Patent Owner(s)

Patent OwnerAddress
SEMICONDUCTOR ENERGY LABORATORY CO LTDATSUGI

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Koyama, Jun Kanagawa, JP 1634 57063

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