公开(公告)号：US11716886B2

公开(公告)日：2023-08-01

申请号：US17410274

申请日：2021-08-24

Applicant: Samsung Display Co., Ltd.

Inventor： Hui-Won Yang ,  Kyumin Kim ,  Jaeseol Cho ,  Jongmoo Huh

IPC: H10K59/131 ,  H10K59/121 ,  H01L27/12

CPC classification number: H10K59/131 ,  H10K59/1213 ,  H01L27/1225

Abstract: A display device includes a lower electrode extending in a first direction and a first active layer disposed on the lower electrode and extending in a second direction perpendicular to the first direction. The first active layer includes a first area having a first width in the first direction, a second area having a second width wider than the first width in the first direction, and overlapping the lower electrode and a third area between the first area and the second area and connecting the first area to the second area.

公开(公告)号：US11716869B2

公开(公告)日：2023-08-01

申请号：US17315137

申请日：2021-05-07

Applicant: Samsung Display Co., Ltd.

Inventor： Jaeseol Cho ,  Chungi You

IPC: H10K50/818 ,  H10K59/124 ,  H10K59/131 ,  H10K71/00 ,  H10K59/126 ,  H10K59/12 ,  H10K102/00

CPC classification number: H10K50/818 ,  H10K59/124 ,  H10K59/131 ,  H10K71/00 ,  H10K71/621 ,  H10K59/1201 ,  H10K59/126 ,  H10K2102/3026

Abstract: A display device includes a substrate including a display area and a pad area, a lower electrode, a light emitting layer, an upper electrode on the light emitting layer, and a pad electrode in the pad area. The lower electrode is in the display area, the lower electrode including a first electrode, a second electrode, and a third electrode. The first electrode has a first etching rate with respect to an etching process. The second electrode is on the first electrode. The second electrode has a second etching rate with respect to the etching process that is higher than the first etching rate. The third electrode is on the second electrode. The third electrode has a third etching rate with respect to the etching process that is lower than the second etching rate and higher than the first etching rate. The light emitting layer is over the first electrode.

公开(公告)号：US12082435B2

公开(公告)日：2024-09-03

申请号：US18362935

申请日：2023-07-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jaeseol Cho ,  Chungi You

IPC: H10K50/818 ,  H10K59/124 ,  H10K59/131 ,  H10K71/00 ,  H10K59/12 ,  H10K59/126 ,  H10K102/00

CPC classification number: H10K50/818 ,  H10K59/124 ,  H10K59/131 ,  H10K71/00 ,  H10K71/621 ,  H10K59/1201 ,  H10K59/126 ,  H10K2102/3026

Abstract: A display device includes a substrate including a display area and a pad area, a lower electrode, a light emitting layer, an upper electrode on the light emitting layer, and a pad electrode in the pad area. The lower electrode is in the display area, the lower electrode including a first electrode, a second electrode, and a third electrode. The first electrode has a first etching rate with respect to an etching process. The second electrode is on the first electrode. The second electrode has a second etching rate with respect to the etching process that is higher than the first etching rate. The third electrode is on the second electrode. The third electrode has a third etching rate with respect to the etching process that is lower than the second etching rate and higher than the first etching rate. The light emitting layer is over the first electrode.