Electronic device and method of driving the same

Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix

Reexamination Certificate

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C345S090000, C345S204000

Reexamination Certificate

active

06987496

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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