Thin film transistor substrate and display device using the same
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United States of America Patent
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Oct 10, 2017
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Jun 14, 2016
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Jun 19, 2015
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Abstract
A thin film transistor (TFT) substrate and a display device using the same are disclosed. The TFT substrate includes a first TFT including a polycrystalline semiconductor layer, a first gate electrode, a first source electrode, and a first drain electrode deposited on a substrate, a second TFT separated from the first TFT, the second TFT including a second gate electrode, an oxide semiconductor layer, a second source electrode, and a second drain electrode deposited on the first gate electrode, and a plurality of storage capacitors separated from the first and second TFTs, each storage capacitor including a first dummy semiconductor layer, a first gate insulating layer on the first dummy semiconductor layer, a first dummy gate electrode on the first gate insulating layer, and an intermediate insulating layer on the first dummy gate electrode.
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