公开(公告)号：US20240251638A1

公开(公告)日：2024-07-25

申请号：US18538365

申请日：2023-12-13

Applicant: Samsung Display Co., LTD.

Inventor： Chul Won PARK ,  So Young KOO ,  Myoung Hwa KIM ,  Geun Chul PARK ,  Joon Seok PARK ,  Hye Lim CHOI

IPC: H10K59/80 ,  H10K59/12 ,  H10K59/122

CPC classification number: H10K59/80522 ,  H10K59/1201 ,  H10K59/122 ,  H10K59/873

Abstract: A display device includes: a substrate; a plurality of pixel electrodes that are disposed above the substrate; a first insulating layer that has a first opening and is disposed on a pixel electrode of the plurality of pixel electrodes; an auxiliary electrode that is disposed on the first insulating layer; an intermediate layer that is disposed on the pixel electrode and includes a light-emitting layer disposed within the first opening; a common electrode that is disposed on the intermediate layer; and a first encapsulating layer that is disposed above the common electrode. An end portion of the common electrode contacts a side surface of the auxiliary electrode and is electrically connected to the side surface of the auxiliary electrode, and an end portion of the first encapsulating layer is disposed at the side surface of the auxiliary electrode and is disposed lower than an upper surface of the auxiliary electrode.

公开(公告)号：US20240049510A1

公开(公告)日：2024-02-08

申请号：US18312637

申请日：2023-05-05

Applicant: Samsung Display Co., LTD. ,  Industry-University Cooperation Foundation Hanyang University ERICA Campus

Inventor： Joon Seok PARK ,  Saeroonter OH ,  Su Hyun KIM ,  Taeho LEE ,  Hye Lim CHOI ,  Jun Hyung LIM

IPC: H10K59/121 ,  H10K59/124

CPC classification number: H10K59/1216 ,  H10K59/124

Abstract: According to an embodiment, a display device includes: a first capacitor electrode disposed on a substrate to include a first conductive layer and a second conductive layer disposed on the first conductive layer; a buffer layer disposed on the first capacitor electrode; a second capacitor electrode disposed on the buffer layer; a driving transistor disposed on the substrate; and a storage capacitor disposed on the substrate and electrically connected to the driving transistor, wherein the first capacitor electrode includes a concave portion and a convex portion depending on a pattern of the second conductive layer disposed on the first conductive layer, the buffer layer and the second capacitor electrode each include protrusions and depressions corresponding to the concave portion and the convex portion of the first capacitor electrode, and the first capacitor electrode and the second capacitor electrode form two electrodes of the storage capacitor.

公开(公告)号：US20210098561A1

公开(公告)日：2021-04-01

申请号：US16885598

申请日：2020-05-28

Applicant: Samsung Display Co., Ltd.

Inventor： Joon Seok PARK ,  Myounghwa KIM ,  Tae Sang KIM ,  Hyungjun KIM ,  Yeon Keon MOON ,  Geunchul PARK ,  Sangwoo SOHN ,  Jun Hyung LIM ,  Kyung Jin JEON ,  Hye Lim CHOI

IPC: H01L27/32

Abstract: A display device includes a first pixel, a second pixel, a first data line connected to the first pixel, and a second data line connected to the second pixel. Each of the first pixel and the second pixel includes a transistor including a conductive layer, a semiconductor layer on the conductive layer, a gate electrode on the semiconductor layer, and a source/drain electrode connected to the semiconductor layer, a capacitor including a first capacitor electrode in a same layer as the gate electrode and a second capacitor electrode on the first capacitor electrode, and a light emitting device on the transistor and the capacitor. The first data line is in a same layer as the source/drain electrode, and the second data line is in a same layer as one of the conductive layer and the second capacitor electrode.

公开(公告)号：US20210056898A1

公开(公告)日：2021-02-25

申请号：US16850775

申请日：2020-04-16

Applicant: Samsung Display Co., LTD.

Inventor： Joon Seok PARK ,  Yeon Keon MOON ,  Myoung Hwa KIM ,  Tae Sang KIM ,  Hyung Jun KIM ,  Geun Chul PARK ,  Sang Woo SOHN ,  Jun Hyung LIM ,  Kyung Jin JEON ,  Hye Lim CHOI

IPC: G09G3/3225 ,  G09G3/3266 ,  G09G3/3275 ,  H01L27/32

Abstract: A display device includes a pixel including a light emitting element connected to a scan line and a data line; a driving transistor that controls a driving current supplied to the light emitting element according to a data voltage applied from the data line. The driving transistor includes a first semiconductor layer, and a first gate electrode disposed on the first semiconductor layer. The display device includes a switching transistor that applies the data voltage to the driving transistor according to a scan signal applied to the scan line. The switching transistor includes a second semiconductor layer, and a second gate electrode disposed on the second semiconductor layer. The display device includes a light blocking layer and a first buffer layer disposed at a lower portion of the driving transistor. The light blocking layer and the first buffer layer do not overlap the switching transistor.