Display apparatus

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United States of America Patent

PATENT NO 11696470
APP PUB NO 20220149132A1
SERIAL NO

17246989

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A display apparatus includes a substrate including a display area and a peripheral area outside the display area, a pixel circuit disposed on the substrate in the display area, where the pixel circuit includes a driving thin film transistor and a switching thin film transistor, and a display element connected to the pixel circuit. The driving thin film transistor includes a driving semiconductor layer having a single layer structure, the switching thin film transistor includes a switching semiconductor layer in which a first layer, a second layer, and a third layer, which are oxide semiconductors, are sequentially stacked one on another, and a conductivity of the second layer of the switching semiconductor layer is greater than respective conductivities of the first layer and the third layer of the switching semiconductor layer.

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Patent Owner(s)

  • SAMSUNG DISPLAY CO., LTD.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kim, Taesang Yongin-si, KR 33 174
Koo, Soyoung Yongin-si, KR 12 3
Moon, Yeonkeon Yongin-si, KR 10 5
Park, Joonseok Yongin-si, KR 13 17
Sohn, Sangwoo Yongin-si, KR 23 25

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