Driving method for electro-optical device, electro-optical device, and electronic apparatus
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United States of America Patent
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Jan 1, 2008
Grant Date -
Apr 18, 2002
app pub date -
Sep 21, 2001
filing date -
Sep 29, 2000
priority date (Note) -
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Abstract
The invention provides a method for implementing a multi-level display of an electro-optical device according to a time ratio gray-scale method without providing reset lines. In an electro-optical device that includes, at an intersection of a scanning line and a data line, an electro-optical element, a driving transistor that drives the electro-optical element, and a switching transistor that controls the driving transistor, a gray-scale is obtained by performing a plurality of set-reset operations. Each set-reset operation includes: a setting step of supplying an on-signal to the switching transistor via the scanning line, and of supplying a set signal to select a conducting state or a non-conducting state of the driving transistor to the driving transistor via the data line and the switching transistor in accordance with the one signal; and a resetting step of supplying an on-signal to the switching transistor via the scanning line, and of supplying a reset signal to select the non-conducting state of the driving transistor to the driving transistor via the data line and the switching transistor in accordance with the one signal.
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