Electro-optical device, driving circuit of electro-optical device, and electronic apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7633480
APP PUB NO 20060158395A1
SERIAL NO

11322219

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A driving circuit drives an electro-optical device in which a gray-scale level of each of a plurality of electro-optical elements provided so as to correspond to a plurality of data lines is controlled on the basis of a voltage of a corresponding data line. The driving circuit includes a pulse output circuit that outputs a plurality of sampling pulses, each of the plurality of sampling pulses becoming an active level sequentially; a plurality of unit circuits each of which is supplied with a sampling pulse from the pulse output circuit; and a signal line that is supplied with a gray-scale signal to sequentially designate a gray-scale level of each of the electro-optical elements. Each of the plurality of unit circuits has a first switching element that samples the gray-scale signal supplied to the signal line in accordance with a sampling pulse output from the pulse output circuit; a second switching element that is inserted between the first switching element and the data line and enters an off state until a predetermined period passes from a time when sampling operation is started by the first switching element; and a storage capacitor that holds a voltage of an output terminal of the second switching element.

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Patent Owner(s)

  • SEIKO EPSON CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujikawa, Shinsuke Chino , JP 78 280
Kubota, Takehiko Suwa , JP 64 684

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