Pulse output circuit, shift register, and display device

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United States of America Patent

PATENT NO 11942058
APP PUB NO 20230107990A1
SERIAL NO

17961778

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In a pulse output circuit in a shift register, a power source line which is connected to a transistor in an output portion connected to a pulse output circuit at the next stage is set to a low-potential drive voltage, and a power source line which is connected to a transistor in an output portion connected to a scan signal line is set to a variable potential drive voltage. The variable potential drive voltage is the low-potential drive voltage in a normal mode, and can be either a high-potential drive voltage or the low-potential drive voltage in a batch mode. In the batch mode, display scan signals can be output to a plurality of scan signal lines at the same timing in a batch.

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Patent Owner(s)

  • SEMICONDUCTOR ENERGY LABORATORY CO. LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Amano, Seiko Kanagawa, JP 24 234
Miyake, Hiroyuki Kanagawa, JP 598 11494

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