Light-emitting device and method of driving the same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20030234755A1
SERIAL NO

10454829

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A light-emitting device which consumes a decreased amount of electric power without continuously and repetitively processing the same digital signals by the external circuit and by the drive circuit, and a method of driving the same. A plurality of storage circuits are arranged in each pixel in the light-emitting device. The plurality of pixels are divided into blocks. A D/A converter circuit is provided for each of the blocks. The digital signals stored in the storage circuits in each pixel are successively converted into analog signals through the D/A converter, and are input to a capacitor and to a gate electrode of a current-controlling TFT in the corresponding pixel. This constitution makes it possible to lower the consumption of electric power and to increase the numerical aperture.

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Patent Owner(s)

Patent OwnerAddress
SEMICONDUCTOR ENERGY LABORATORY CO LTD398 HASE ATSUGI-SHI KANAGAWA 2430036 ?2430036

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Koyama, Jun Sagamihara, JP 1634 57063

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