公开(公告)号：US11915640B1

公开(公告)日：2024-02-27

申请号：US18119498

申请日：2023-03-09

Applicant: Samsung Display Co., Ltd.

Inventor： Donghwan Shim ,  Kwangwoo Park ,  Eonjoo Lee ,  Jin-Yong Lee ,  Cheol Jang ,  Yongseon Jo

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/0278 ,  G09G2310/08

Abstract: A pixel circuit includes a light-emitting element, a write transistor writing a data voltage, a driving transistor generating a driving current based on the data voltage and applying the driving current to the light-emitting element, a first initialization transistor applying a first initialization voltage to a control electrode of the driving transistor, a blocking transistor disposed between the light-emitting element and the driving transistor, a first blocking control transistor including a control electrode connected to the control electrode of the driving transistor, a first electrode receiving a first signal, and a second electrode connected to a control electrode of the blocking transistor, and a second blocking control transistor including a control electrode connected to the control electrode of the driving transistor, a first electrode receiving a second signal, and a second electrode connected to the control electrode of the blocking transistor.

公开(公告)号：US11758773B2

公开(公告)日：2023-09-12

申请号：US17319263

申请日：2021-05-13

Applicant: Samsung Display Co., LTD.

Inventor： Jin-Yong Lee ,  Jinho Ju ,  Kwangwoo Park ,  Minjung Ann

IPC: H10K59/124 ,  H10K50/844 ,  H10K71/00

CPC classification number: H10K59/124 ,  H10K50/844 ,  H10K71/00

Abstract: A display device includes a substrate including a first pixel area, a second pixel area spaced apart from the first pixel area, and a valley area between the first pixel area and the second pixel area, a first insulating layer on the substrate and in both the first pixel area and the second pixel area, a penetration hole through the first insulating layer and corresponding to the valley area, the penetration hole exposing a side surface of the first insulating layer and an upper surface of the substrate to outside the first insulating layer, a crack prevention pattern which is in the penetration hole and covers the side surface of the first insulating layer, and a second insulating layer facing the first insulating layer with the crack prevention pattern therebetween, the second insulating layer in contact with the upper surface of the substrate at the penetration hole.