Display apparatus
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United States of America Patent
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Jul 13, 2021
Grant Date -
May 7, 2020
app pub date -
Sep 19, 2019
filing date -
Nov 7, 2018
priority date (Note) -
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Abstract
A display apparatus includes a substrate having a first substrate, a second substrate, and an inorganic insulating layer between the first substrate and the second substrate. A first buffer layer is on the substrate, wherein the first buffer layer includes n+1 layers, and ‘n’ is 0 or an even number. A first thin film transistor, a second thin film transistor, and a storage capacitor are each on the first buffer layer. The first thin film transistor includes a first active layer formed of a low temperature poly silicon material. The second thin film transistor includes a second active layer formed of an oxide semiconductor material. The storage capacitor includes a first capacitor electrode and a second capacitor electrode.
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