公开(公告)号：US20180336808A1

公开(公告)日：2018-11-22

申请号：US15979786

申请日：2018-05-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： KWANG SAE LEE ,  JUNG HOON SHIM ,  WON KYU KWAK ,  Kl MYEONG EOM

IPC: G09G3/00 ,  G01R31/02

Abstract: A display device includes a display panel having a display area and a peripheral area. The display device includes a circuit having a comparator, and first and second sense wires disposed in the peripheral area and connected to the circuit. The comparator compares a first output signal output from the first sense wire and a second output signal output from the second sense wire to generate a comparison result. The circuit determines whether a defect is present in the display device based on the comparison result.

公开(公告)号：US20250078706A1

公开(公告)日：2025-03-06

申请号：US18953531

申请日：2024-11-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： KWANG SAE LEE ,  JUNG HOON SHIM ,  WON KYU KWAK ,  KI MYEONG EOM

IPC: G09G3/00 ,  G09G3/20

Abstract: A display device includes a display panel having a display area and a peripheral area. The display device includes a circuit having a comparator, and first and second sense wires disposed in the peripheral area and connected to the circuit. The comparator compares a first output signal output from the first sense wire and a second output signal output from the second sense wire to generate a comparison result. The circuit determines whether a defect is present in the display device based on the comparison result.

公开(公告)号：US20240274076A1

公开(公告)日：2024-08-15

申请号：US18376645

申请日：2023-10-04

Applicant: Samsung Display Co., LTD.

Inventor： SUNGHWAN KIM ,  WONKYU KWAK ,  JUNG HOON SHIM

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2320/0271

Abstract: A pixel circuit includes a driving transistor which generates a driving current and including a first electrode connected to a first node, a gate electrode connected to a gate node, and a second electrode connected to a second node, a writing transistor connected to the driving transistor through the first node and including a first electrode which receives a data voltage, a gate electrode which receives a write gate signal, and a second electrode connected to the first node, a compensation transistor including a gate electrode, a first electrode connected to the gate node, and a second electrode connected to the second node, a gate-drain capacitor connected in parallel with the compensation transistor and including a first electrode connected to the gate node and a second electrode connected to the second node, and a light emitting element that emits light based on the driving current.

公开(公告)号：US20240274058A1

公开(公告)日：2024-08-15

申请号：US18433449

申请日：2024-02-06

Applicant: Samsung Display Co., Ltd.

Inventor： Daehyun Kim ,  SUNGHWAN KIM ,  JUNG HOON SHIM

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2300/0452 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2320/0242 ,  G09G2330/021

Abstract: A display device includes a display panel including pixel driving circuits and light emitting elements, a data driver that outputs data voltages to the pixel driving circuits, and a timing controller that controls the data driver. The data driver includes a first amplifier and second amplifiers. The first amplifier outputs first data voltages to a first data line connected to first pixel driving circuits arranged in a first column and output second data voltages to a second data line connected to second pixel driving circuits arranged in a second column. The second amplifiers output third data voltages to third data lines connected to third pixel driving circuits arranged in third columns which are disposed between the first column and the second column. Thus, the display device reduces the number of amplifiers included in the data driver.

公开(公告)号：US20230343259A1

公开(公告)日：2023-10-26

申请号：US18342329

申请日：2023-06-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： KWANG SAE LEE ,  JUNG HOON SHIM ,  WON KYU KWAK ,  KI MYEONG EOM

IPC: G09G3/00 ,  G09G3/20

CPC classification number: G09G3/006 ,  G09G3/20 ,  G09G2330/12 ,  G09G2300/0426

Abstract: A display device includes a display panel having a display area and a peripheral area. The display device includes a circuit having a comparator, and first and second sense wires disposed in the peripheral area and connected to the circuit. The comparator compares a first output signal output from the first sense wire and a second output signal output from the second sense wire to generate a comparison result. The circuit determines whether a defect is present in the display device based on the comparison result.