公开(公告)号：US10909923B2

公开(公告)日：2021-02-02

申请号：US16812979

申请日：2020-03-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong Hwi Kim ,  Na Young Kim ,  Chul Ho Kim ,  Wang Jo Lee ,  Jin Jeon

IPC: G09G3/3233 ,  H01L27/32 ,  G09G3/3275 ,  G09G3/3266 ,  H01L27/12

Abstract: A pixel circuit includes first to fifth transistors, a capacitor, and a light emitting element. The first transistor is coupled between first and second power lines, and includes a gate electrode coupled to a first node and a back-gate electrode coupled to a second node. The second transistor is coupled between a data line and the first node, and includes a gate electrode coupled to a first scan line. The third transistor is coupled between a third power line and the first node, and includes a gate electrode coupled to a reference scan line. The fourth transistor is coupled between a second node and a fourth power line, and includes a gate electrode coupled to a second scan line. The fifth transistor is coupled between a first power line and the one electrode of the first transistor, and includes a gate electrode coupled to a light-emitting control line.

公开(公告)号：US11568809B2

公开(公告)日：2023-01-31

申请号：US17137794

申请日：2020-12-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong Hwi Kim ,  Na Young Kim ,  Chul Ho Kim ,  Wang Jo Lee ,  Jin Jeon

IPC: G09G3/3233 ,  G09G3/3275 ,  G09G3/3266 ,  H01L27/32 ,  H01L27/12

Abstract: A pixel circuit includes first to fifth transistors, a capacitor, and a light emitting element. The first transistor is coupled between first and second power lines, and includes a gate electrode coupled to a first node and a back-gate electrode coupled to a second node. The second transistor is coupled between a data line and the first node, and includes a gate electrode coupled to a first scan line. The third transistor is coupled between a third power line and the first node, and includes a gate electrode coupled to a reference scan line. The fourth transistor is coupled between a second node and a fourth power line, and includes a gate electrode coupled to a second scan line. The fifth transistor is coupled between a first power line and the one electrode of the first transistor, and includes a gate electrode coupled to a light-emitting control line.

公开(公告)号：US11615745B2

公开(公告)日：2023-03-28

申请号：US17700863

申请日：2022-03-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seung Chan Lee ,  Beom Soo Park ,  Wang Jo Lee ,  Seong Jun Lee ,  Yoon Ah Choi

IPC: G09G3/20 ,  G09G3/3233 ,  H01L27/32 ,  H01L29/786

Abstract: A pixel includes: a driving transistor including a gate electrode coupled to a first node, a first electrode coupled to a second node, and a second electrode coupled to a third node; a first initialization transistor coupled between the first node and a first initialization voltage line, and including a gate electrode coupled to a scan line, where the first initialization voltage line is configured to supply a first initialization voltage; a first emission control transistor coupled between a fourth node and a fifth node and including a gate electrode coupled to the first node; a second emission control transistor coupled between the third node and the fifth node and including a gate electrode coupled to an emission control line; and a light-emitting element coupled between the fourth node and a driving low voltage line. The driving transistor and the first emission control transistor are different types of transistors.

公开(公告)号：US11177338B2

公开(公告)日：2021-11-16

申请号：US16780665

申请日：2020-02-03

Applicant: Samsung Display Co., Ltd.

Inventor： Dong-Hwi Kim ,  Na-Young Kim ,  Chul Ho Kim ,  Wang Jo Lee ,  Jin Jeon

IPC: H01L27/32

Abstract: A display device includes: a substrate including a display area at which a pixel including a light emitting element is located and a peripheral area surrounding the display area; and a common voltage line on the substrate, the common voltage line configured to provide a common voltage to the pixel, the common voltage line including: a peripheral common voltage line on the peripheral area of the substrate to surround the display area and connected to a common electrode of the light emitting element; and a plurality of display common voltage lines crossing the display area and each contacting different portions of the peripheral common voltage line, the display common voltage lines being spaced apart from the common electrode of the light emitting element.

公开(公告)号：US11683958B2

公开(公告)日：2023-06-20

申请号：US17340236

申请日：2021-06-07

Applicant: Samsung Display Co., LTD.

Inventor： Seung Chan Lee ,  Beom Soo Park ,  Wang Jo Lee ,  Jae Bum Cho ,  Jae Ik Lim

IPC: H01L27/14 ,  H10K59/121 ,  H10K59/131 ,  H01L27/12 ,  H01L29/786

CPC classification number: H10K59/1213 ,  H10K59/1216 ,  H10K59/131 ,  H01L27/124 ,  H01L27/1225 ,  H01L27/1251 ,  H01L27/1255 ,  H01L29/7869 ,  H01L29/78675

Abstract: A display device includes: a substrate; a polycrystalline semiconductor layer which includes a first electrode, a channel, and a second electrode of a driving transistor disposed on the substrate; a first gate insulating layer disposed on the polycrystalline semiconductor layer; a gate electrode of the driving transistor which is disposed on the first gate insulating layer and overlaps the channel; a lower first scan line disposed on the first gate insulating layer; a second gate insulating layer disposed on the gate electrode and on the lower first scan line; a first lower boost electrode disposed on the second gate insulating layer; a first interlayer-insulating layer disposed on the first lower boost electrode; an oxide semiconductor layer disposed on the first interlayer-insulating layer and including a first upper boost electrode overlapping the first lower boost electrode; and a first connection electrode connecting the gate electrode and the first upper boost electrode.

公开(公告)号：US11881172B2

公开(公告)日：2024-01-23

申请号：US18155233

申请日：2023-01-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong Hwi Kim ,  Na Young Kim ,  Chul Ho Kim ,  Wang Jo Lee ,  Jin Jeon

IPC: G09G3/3233 ,  G09G3/3275 ,  G09G3/3266 ,  H10K59/124 ,  H10K59/131 ,  H10K59/121 ,  H01L27/12

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  H10K59/124 ,  H10K59/1213 ,  H10K59/1216 ,  H10K59/131 ,  G09G2300/0426 ,  H01L27/124 ,  H01L27/1225 ,  H01L27/1248 ,  H01L27/1251 ,  H01L27/1255

Abstract: A pixel circuit includes first to fifth transistors, a capacitor, and a light emitting element. The first transistor is coupled between first and second power lines, and includes a gate electrode coupled to a first node and a back-gate electrode coupled to a second node. The second transistor is coupled between a data line and the first node, and includes a gate electrode coupled to a first scan line. The third transistor is coupled between a third power line and the first node, and includes a gate electrode coupled to a reference scan line. The fourth transistor is coupled between a second node and a fourth power line, and includes a gate electrode coupled to a second scan line. The fifth transistor is coupled between a first power line and the one electrode of the first transistor, and includes a gate electrode coupled to a light-emitting control line.

公开(公告)号：US20220190061A1

公开(公告)日：2022-06-16

申请号：US17491918

申请日：2021-10-01

Applicant: Samsung Display Co., Ltd.

Inventor： Jong In Baek ,  Seong Jun Lee ,  Ja Seung Ku ,  Wang Jo Lee

IPC: H01L27/32

Abstract: A display panel includes: a base layer including an emission area and a sensor area; a pixel circuit disposed on the emission area of the base layer; illuminance sensors disposed on the sensor area of the base layer, each of the illuminance sensors including a light receiving element overlapping the sensor area, the light receiving element disposed to be adjacent to the pixel circuit; light emitting elements disposed on the pixel circuit, each of the light emitting elements including a light emitting layer overlapping the emission area; a black matrix including openings overlapping the light emitting layer; and a color filter disposed on the light emitting elements and the black matrix.

公开(公告)号：US20210118365A1

公开(公告)日：2021-04-22

申请号：US17137794

申请日：2020-12-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong Hwi Kim ,  Na Young Kim ,  Chul Ho Kim ,  Wang Jo Lee ,  Jin Jeon

IPC: G09G3/3233 ,  G09G3/3275 ,  G09G3/3266 ,  H01L27/32

Abstract: A pixel circuit includes first to fifth transistors, a capacitor, and a light emitting element. The first transistor is coupled between first and second power lines, and includes a gate electrode coupled to a first node and a back-gate electrode coupled to a second node. The second transistor is coupled between a data line and the first node, and includes a gate electrode coupled to a first scan line. The third transistor is coupled between a third power line and the first node, and includes a gate electrode coupled to a reference scan line. The fourth transistor is coupled between a second node and a fourth power line, and includes a gate electrode coupled to a second scan line. The fifth transistor is coupled between a first power line and the one electrode of the first transistor, and includes a gate electrode coupled to a light-emitting control line.