公开(公告)号：US11063068B2

公开(公告)日：2021-07-13

申请号：US16575917

申请日：2019-09-19

Applicant: LG Display Co., Ltd.

Inventor： JinChae Jeon ,  SoYoung Noh ,  UiJin Chung ,  Eunsung Kim ,  HyunSoo Shin ,  Wonkyung Kim ,  Jeihyun Lee

IPC: H01L27/12

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.