Computer graphics processing and selective visual display system – Display driving control circuitry
Reexamination Certificate
2006-03-31
2009-08-04
Shalwala, Bipin (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
C345S051000, C345S052000, C345S063000, C345S077000, C345S205000, C345S211000, C345S214000, C345S690000, C315S169300
Reexamination Certificate
active
07570257
ABSTRACT:
An element driving transistor controls an amount of power supplied from a power supply PVDD to an element to be driven (display element) provided in a pixel of each row. A storage capacitor has a first electrode connected to a gate electrode of an element driving transistor and a second electrode connected to a capacitor line. A voltage level of a capacitor control signal SCn to be output to the capacitor line is set to a voltage level which controls the element driving transistor via the storage capacitor Cs to be periodically switched off. A V driver formed at a periphery of a display portion of a panel has a generator which generates a capacitor control signal SCn using outputs of registers which sequentially transfer and output a signal according to a V start signal STV so that the off-control period of the element driving transistor is determined according to the H level period of the V start signal STV. The voltage level of the capacitor control signal allows, for each row, the element driving transistor to be controlled to be switched off for a period according to the signal STV and persistent images can be improved.
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Cantor & Colburn LLP
Kovalick Vince E
Sanyo Electric Co,. Ltd.
Shalwala Bipin
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