公开(公告)号：US20230197016A1

公开(公告)日：2023-06-22

申请号：US18111197

申请日：2023-02-17

Applicant: Samsung Display Co., Ltd.

Inventor： HAI-JUNG IN ,  KIMYEONG EOM ,  JI-HYUN KA

IPC: G09G3/3291

CPC classification number: G09G3/3291 ,  G09G2310/08 ,  G09G2330/04

Abstract: An emission driver includes a plurality of stages. A stage of the plurality of stages receives a start signal, a first clock signal, a second clock signal, a protection signal, a first gate power voltage and a second gate power voltage and outputs an emission signal. The stage of the plurality of stages includes a pull-up switching element connected between a first gate power voltage terminal which receives the first gate power voltage and an emission signal output terminal which outputs the emission signal, a pull-down switching element connected between a second gate power voltage terminal which receives the second gate power voltage and the emission signal output terminal and a protection switching element which applies the first gate power voltage to a control electrode of the pull-down switching element in response to the protection signal.

公开(公告)号：US20230186856A1

公开(公告)日：2023-06-15

申请号：US18106431

申请日：2023-02-06

Applicant: Samsung Display Co., Ltd.

Inventor： JI-HYUN KA ,  NACKHYEON KEUM ,  KIMYEONG EOM

IPC: G09G3/3258 ,  G09G3/3291

CPC classification number: G09G3/3258 ,  G09G3/3291 ,  G09G3/3266

Abstract: A display panel of an OLED display device includes a first pixel configured to emit first color light, a second pixel configured to emit second color light, and a third pixel configured to emit third color light. Each of the first, second and third pixels includes at least two transistors, at least one capacitor and an organic light emitting diode. At least one of at least two transistors or at least one capacitor included in the third pixel has a size different from a size of a corresponding one at least two transistors or at least one capacitor included in the first pixel or the second pixel.

公开(公告)号：US20240062702A1

公开(公告)日：2024-02-22

申请号：US18125135

申请日：2023-03-23

Applicant: Samsung Display Co., Ltd.

Inventor： SUNGMIN SON ,  JAE-JIN SONG ,  KIMYEONG EOM ,  Jungwoo Lee

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2300/0842 ,  G09G2310/0275 ,  G09G2310/08 ,  G09G2300/0426

Abstract: Provided is a gate driver comprising an inverter inverting a start signal to generate an inverted start signal, a first driver including a first stage generating a bias gate signal to initialize a light emitting element of each of pixels in response to the inverted start signal, and a second driver including a second stage generating a write gate signal to apply data voltages to the pixels in response to the start signal. Accordingly, the gate driver may generate a plurality of gate signals using one start signal. In addition, since the gate driver generates a write gate signal and a bias gate signal using one start signal, a bias operation and a light emitting element initialization operation may be performed in a self-scan period without adding the start signal. Further, a size of the gate driver may be reduced, and accordingly, the gate driver may be efficiently disposed.

公开(公告)号：US20220157241A1

公开(公告)日：2022-05-19

申请号：US17588520

申请日：2022-01-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JI-HYUN KA ,  TAEHOON KWON ,  KIMYEONG EOM

IPC: G09G3/3233 ,  G09G3/36 ,  H01L27/32 ,  G02F1/1345

Abstract: A display apparatus includes a substrate which includes a first pixel area and a second pixel area. A third pixel area is spaced apart from the second pixel area. A notch peripheral area is adjacent to the first, second and third pixel areas. A plurality of pixels are provided in the first, second and third pixel areas. A first scan line is disposed on the substrate. The first scan line includes a first portion disposed in the second pixel area, a second portion disposed in the third pixel area, and a third portion which connects the first portion to the second portion. The third portion is disposed in the notch peripheral area. A second scan line is disposed on the substrate in the first pixel area. A surface area of the first scan line is from about 90% to about 110% of a surface area of the second scan line.

公开(公告)号：US20210366408A1

公开(公告)日：2021-11-25

申请号：US17321825

申请日：2021-05-17

Applicant: Samsung Display Co., Ltd.

Inventor： HAI-JUNG IN ,  KIMYEONG EOM ,  JI-HYUN KA

IPC: G09G3/3291

Abstract: An emission driver includes a plurality of stages. A stage of the plurality of stages receives a start signal, a first clock signal, a second clock signal, a protection signal, a first gate power voltage and a second gate power voltage and outputs an emission signal. The stage of the plurality of stages includes a pull-up switching element connected between a first gate power voltage terminal which receives the first gate power voltage and an emission signal output terminal which outputs the emission signal, a pull-down switching element connected between a second gate power voltage terminal which receives the second gate power voltage and the emission signal output terminal and a protection switching element which applies the first gate power voltage to a control electrode of the pull-down switching element in response to the protection signal.

公开(公告)号：US20240312418A1

公开(公告)日：2024-09-19

申请号：US18675067

申请日：2024-05-27

Applicant: Samsung Display Co., Ltd.

Inventor： JI-HYUN KA ,  NACKHYEON KEUM ,  KIMYEONG EOM

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3291

CPC classification number: G09G3/3258 ,  G09G3/3291 ,  G09G3/3266 ,  G09G2300/0876

Abstract: A display panel of an OLED display device includes a first pixel configured to emit first color light, a second pixel configured to emit second color light, and a third pixel configured to emit third color light. Each of the first, second and third pixels includes at least two transistors, at least one capacitor and an organic light emitting diode. At least one of at least two transistors or at least one capacitor included in the third pixel has a size different from a size of a corresponding one at least two transistors or at least one capacitor included in the first pixel or the second pixel.

公开(公告)号：US20210286002A1

公开(公告)日：2021-09-16

申请号：US17191581

申请日：2021-03-03

Applicant: Samsung Display Co., Ltd.

Inventor： HWAYOUNG SONG ,  SEUNGWOO SUNG ,  DONG EUP LEE ,  SEUNGJI CHA ,  KIMYEONG EOM ,  KWANGSAE LEE

IPC: G01R31/317 ,  G09G3/20

Abstract: A display panel test circuit includes a first transistor connected to a first data line and receiving a red lighting test signal, a second transistor connected to the first data line and receiving a blue lighting test signal, a third transistor connected to a second data line and receiving a first green lighting test signal, a fourth transistor connected to a third data line and receiving the red lighting test signal, a fifth transistor connected to the third data line and receiving the blue lighting test signal, a sixth transistor connected to a fourth data line and receiving a second green lighting test signal, a seventh transistor connected to the second data line and receiving a crack test signal, and an eighth transistor connected to the fourth data line and receiving the crack test signal. The display panel test circuit performs one or more tests on a display panel.

公开(公告)号：US20190304366A1

公开(公告)日：2019-10-03

申请号：US16260775

申请日：2019-01-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JI-HYUN KA ,  TAEHOON KWON ,  KIMYEONG EOM

IPC: G09G3/3233 ,  G09G3/36 ,  H01L27/32 ,  G02F1/1345

Abstract: A display apparatus includes a substrate which includes a first pixel area and a second pixel area. A third pixel area is spaced apart from the second pixel area. A notch peripheral area is adjacent to the first, second and third pixel areas. A plurality of pixels are provided in the first, second and third pixel areas. A first scan line is disposed on the substrate. The first scan line includes a first portion disposed in the second pixel area, a second portion disposed in the third pixel area, and a third portion which connects the first portion to the second portion. The third portion is disposed in the notch peripheral area. A second scan line is disposed on the substrate in the first pixel area. A surface area of the first scan line is from about 90% to about 110% of a surface area of the second scan line.