公开(公告)号：US20220406877A1

公开(公告)日：2022-12-22

申请号：US17825724

申请日：2022-05-26

Applicant: Samsung Display Co., Ltd.

Inventor： MYOUNGGEUN CHA ,  SOYOUNG KOO ,  DONGHWAN SHIM ,  SANGGUN CHOI

IPC: H01L27/32 ,  H01L51/56

Abstract: A display device includes a first pixel and a second pixel. A light emitting element and a pixel circuit of the second pixel are in a second area. The first pixel includes a silicon transistor and an oxide transistor in the second area. The first pixel includes a connection line that electrically connects one of the silicon transistor and the oxide transistor to a light emitting element in a first area. The connection line is on the same layer as the oxide semiconductor pattern and includes a transparent conductive oxide.

公开(公告)号：US20240266354A1

公开(公告)日：2024-08-08

申请号：US18424907

申请日：2024-01-29

Applicant: Samsung Display Co., Ltd.

Inventor： KEUNWOO KIM ,  DOO-NA KIM ,  SANGSUB KIM ,  BUMMO SUNG ,  SANGGUN CHOI

IPC: H01L27/12

CPC classification number: H01L27/1222 ,  H01L27/124 ,  H01L27/1255

Abstract: A display device includes: a substrate, a first active pattern disposed on the substrate and including a first channel region, a second channel region spaced apart from each other, and a first common conductive region positioned between the first channel region and the second channel region, a second active pattern disposed on the substrate, spaced apart from the first active pattern, and including a third channel region, a fourth channel region spaced apart from each other, and a second common conductive region positioned between the third channel region and the fourth channel region, a first gate layer disposed on the first and second active patterns and including a first electrode overlapping the first active pattern, and a second gate layer disposed on the first gate layer and including a second electrode overlapping the second active pattern.

公开(公告)号：US20230026562A1

公开(公告)日：2023-01-26

申请号：US17739501

申请日：2022-05-09

Applicant: Samsung Display Co., Ltd.

Inventor： KEUNWOO KIM ,  TAEWOOK KANG ,  JANG-HYUN KIM ,  JOON WOO BAE ,  JAESEOB LEE ,  DONGGYU JIN ,  SANGGUN CHOI

IPC: H01L27/32

Abstract: A display device includes a first transistor, a second transistor electrically connected thereto, n third transistors electrically connected to a gate of the first transistor and connected to each other in series, a capacitor to be charged with a voltage corresponding to a data signal, and a light emitting element, wherein the third transistors include a semiconductor area including a channel area, a source area, a drain area, and a gate overlapping the channel area, wherein the source area or the drain area that is closer to the gate of the first transistor, and that is of the third transistor closest to the gate of the first transistor, includes a first area, and a second area between the first area and the channel area, having a doping concentration that is lower than that of the first area, and having a width that is less than that of the first area.

公开(公告)号：US20230075763A1

公开(公告)日：2023-03-09

申请号：US17900625

申请日：2022-08-31

Applicant: Samsung Display Co., LTD.

Inventor： KEUNWOO KIM ,  TAEWOOK KANG ,  JOON WOO BAE ,  YU-GWANG JEONG ,  SUNGWON CHO ,  JAEHWAN CHU ,  SANGGUN CHOI

IPC: H01L27/32 ,  G09G3/3233 ,  G09G3/20 ,  H01L51/56

Abstract: A display device includes: a substrate; and a plurality of pixel circuits on the substrate comprising: an active layer including a first region and a second region; a gate insulating layer on the active layer, the gate insulating layer including a first insulating layer overlapping the first region and the second region, a second insulating layer on the first insulating layer and overlapping the first region, and a third insulating layer on the second insulating layer and overlapping the first region and the second region; and a first conductive layer on the gate insulating layer, the first conductive layer including a first gate electrode overlapping the first region to form a driving transistor, and a second gate electrode overlapping the second region to form a switching transistor.

公开(公告)号：US20220392986A1

公开(公告)日：2022-12-08

申请号：US17750565

申请日：2022-05-23

Applicant: Samsung Display Co., LTD.

Inventor： KEUNWOO KIM ,  TAEWOOK KANG ,  SANGGUN CHOI ,  SHIN IL CHOI

IPC: H01L27/32

Abstract: A display device includes in order along a thickness direction of the display device an active pattern including a first region, a second region spaced apart from the first region in a first direction, and a third region between the first region and the second region, a first capacitor electrode which overlaps the third region of the active pattern to define portions of a driving transistor, and a second capacitor electrode which overlaps the first capacitor electrode and defines a groove corresponding to a portion of the first capacitor electrode.