公开(公告)号：US20220208911A1

公开(公告)日：2022-06-30

申请号：US17538465

申请日：2021-11-30

申请人： LG Display Co., Ltd.

发明人： SeongPil Cho ,  JunSeuk Lee ,  YongBin Kang ,  HeeJin Jung ,  Jangdae Kim ,  Dongyup Kim ,  WonHo Son ,  Chanho Kim

IPC分类号： H01L27/32

摘要： A display device includes a substrate including a plurality of sub-pixels, a first buffer layer on the substrate, an etch stopper on the first buffer layer, a second buffer layer covering the first buffer layer, and a first transistor on the second buffer layer. The first transistor includes a source electrode and a drain electrode overlapping the etch stopper. The etch stopper includes a hole in which at least one of the source electrode and the drain electrode is disposed. The etch stopper is spaced apart from the source electrode and the drain electrode. Therefore, it is possible to prevent moisture and impurities from penetrating into a display device by protecting a buffer layer.

公开(公告)号：US20220208868A1

公开(公告)日：2022-06-30

申请号：US17538496

申请日：2021-11-30

申请人： LG Display Co., Ltd.

发明人： JunSeuk Lee ,  SeongPil Cho ,  YongBin Kang ,  HeeJin Jung ,  Jangdae Kim ,  Dongyup Kim ,  WonHo Son ,  Chanho Kim

IPC分类号： H01L27/32 ,  H01L51/52

摘要： A display device according to the present disclosure includes a substrate including a display area, and at least one non-display area; a light emitting element disposed on the substrate; a first thin film transistor including a first semiconductor layer, a first gate electrode, and a first source electrode and a first drain electrode; a second thin film transistor including a second semiconductor layer, a second gate electrode, and a second source electrode and a second drain electrode; a separation structure located in the non-display area and provided to disconnect an organic light emitting layer of the light emitting element; and a first upper interlayer insulating layer, a second upper interlayer insulating layer, and a third upper interlayer insulating layer interposed between the second gate electrode and the second source electrode and the second drain electrode of the second thin film transistor, and sequentially disposed.

公开(公告)号：US12127446B2

公开(公告)日：2024-10-22

申请号：US17538465

申请日：2021-11-30

申请人： LG Display Co., Ltd.

发明人： SeongPil Cho ,  JunSeuk Lee ,  YongBin Kang ,  HeeJin Jung ,  Jangdae Kim ,  Dongyup Kim ,  WonHo Son ,  Chanho Kim

IPC分类号： H10K59/123 ,  H01L27/12 ,  H01L29/417 ,  H01L29/786 ,  H10K59/121 ,  H10K59/124

CPC分类号： H10K59/123 ,  H10K59/1213 ,  H10K59/124 ,  H01L27/1225 ,  H01L29/41733 ,  H01L29/78675 ,  H01L29/7869

摘要： A display device includes a substrate including a plurality of sub-pixels, a first buffer layer on the substrate, an etch stopper on the first buffer layer, a second buffer layer covering the first buffer layer, and a first transistor on the second buffer layer. The first transistor includes a source electrode and a drain electrode overlapping the etch stopper. The etch stopper includes a hole in which at least one of the source electrode and the drain electrode is disposed. The etch stopper is spaced apart from the source electrode and the drain electrode. Therefore, it is possible to prevent moisture and impurities from penetrating into a display device by protecting a buffer layer.