Driver circuit, method of manufacturing the driver circuit, and display device including the driver circuit

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United States of America Patent

PATENT NO 9515065
APP PUB NO 20150243647A1
SERIAL NO

14636264

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Abstract

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Provided are a driver circuit which suppresses damage of a semiconductor element due to ESD in a manufacturing process, a method of manufacturing the driver circuit. Further provided are a driver circuit provided with a protection circuit with low leakage current, and a method of manufacturing the driver circuit. By providing a protection circuit in a driver circuit to be electrically connected to a semiconductor element in the driver circuit, and by forming, at the same time, a transistor which serves as the semiconductor element in the driver circuit and a transistor included in the protection circuit in the driver circuit, damage of the semiconductor element due to ESD is suppressed in the process of manufacturing the driver circuit. Further, by using an oxide semiconductor film for the transistor included in the protection circuit in the driver circuit, leakage current in the protection circuit is reduced.

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Patent Owner(s)

Patent OwnerAddress
SEMICONDUCTOR ENERGY LABORATORY CO LTDATSUGI-SHI KANAGAWA 243-0036

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Koyama, Jun Sagamihara, JP 1634 57063
Yamazaki, Shunpei Setagaya, JP 7534 239327

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