Method for driving electrooptical device, driving circuit,...

Details Method for driving electrooptical device, driving circuit,... Method for driving electrooptical device, driving circuit,...

2005-03-29

2005-03-29

Shalwala, Bipin (Department: 2673)

Computer graphics processing and selective visual display system

Display driving control circuitry

C345S098000

Reexamination Certificate

active

06873319

ABSTRACT:
The invention provides an electro-optical device capable of a high-quality and high-definition tone display, a driving method thereof, a driving circuit thereof, and electronic equipment using the same. With the invention, one field is divided into a plurality of sub-fields, such that each pixel is turned on or off in each of the sub-fields so that the proportion of the period during which each pixel is turned on to the period during which the associated pixel is turned off within the one field corresponds to the proportion according to the tone data. Further, when each pixel is turned on, either a first voltage which is higher than a constant reference voltage applied to a counter electrode or a second voltage which is lower than the reference voltage is applied to a pixel electrode of the associated pixel, and when the pixel is turned off, a voltage equal to the reference voltage is applied to the pixel electrode of the pixel.

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