Electronic device and method of driving the same
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United States of America Patent
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Jan 17, 2006
Grant Date -
Feb 28, 2002
app pub date -
Aug 17, 2001
filing date -
Aug 18, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In an electro-optical device for performing image display using an n-bit (where n is a natural number, n≧2) digital image signal, n×m (where m is a natural number) volatile memory circuits, and n×k (where k is a natural number) non-volatile memory circuits are contained in every one pixel. The electro-optical device has a function for storing m frame portions of the digital image signal in the volatile memory circuits, and k frame portions of the digital image signal in the non-volatile memory circuits. By performing display of a static image in accordance with repeatedly reading out, for each frame, the digital image signal stored once in the memory circuits and performing display, drive of a source signal line driver circuit can be stopped during that period. Further, a digital image signal stored in the non-volatile memory circuits is stored even after a power source is cut off, and therefore display is possible immediately when the power source is next turned on.
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