公开(公告)号：US20230005429A1

公开(公告)日：2023-01-05

申请号：US17740633

申请日：2022-05-10

Applicant: Samsung Display Co., LTD.

Inventor： Jin Won JANG ,  Seung Won KUK ,  Myung Chul KIM

IPC: G09G3/3266

Abstract: A display device includes pixels electrically connected to a plurality of scan lines and a plurality of data lines, respectively, a scan driver that provides a scan signal to each of the plurality of scan lines, a voltage supply that supplies a first gate voltage to the scan driver through a first gate power line, and a voltage compensator. The voltage compensator senses a partial voltage of the first gate voltage applied to the scan driver through a feedback line. The voltage compensator compensates the first gate voltage with a second gate voltage in case that the sensed first gate voltage is greater than a first reference voltage.

公开(公告)号：US20240257746A1

公开(公告)日：2024-08-01

申请号：US18509177

申请日：2023-11-14

Applicant: Samsung Display Co., Ltd.

Inventor： Jin Won JANG ,  Seung Won KUK ,  Myung Chul KIM

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2320/045

Abstract: A display device includes a pixel circuit configured to generate a driving current based on a data signal supplied to a data line, a first light-emitting stage configured to emit light based on the driving current, and including first light-emitting elements connected in parallel, a detector configured to detect voltages of respective ends of the first light-emitting stage, and a current compensator configured to compensate for a current flowing through the first light-emitting stage based on a first voltage difference between the voltages of the respective ends of the first light-emitting stage.

公开(公告)号：US20230274685A1

公开(公告)日：2023-08-31

申请号：US17965534

申请日：2022-10-13

Applicant: Samsung Display Co., LTD.

Inventor： Jin Won JANG ,  Seung Won KUK

IPC: G09G3/20 ,  G09G3/3233

CPC classification number: G09G3/2096 ,  G09G3/3233 ,  H01L25/167

Abstract: A display device comprises pixels arranged along rows and columns, and including light-emitting elements, a first transistor for supplying a driving current to the light-emitting elements, a second transistor for supplying a data voltage to a first node at a gate electrode of the first transistor, a third transistor for electrically connecting a second node, which is at a first electrode of the light-emitting elements, and a sensing line, and a fourth transistor for electrically connecting a third node, which is at a second electrode of the light-emitting elements, and the sensing line, and a display driver for driving the pixels, for sensing voltages of the second node and the third node to calculate a driving voltage across the light-emitting elements, and for compensating for the data voltage in case that the driving voltage exceeds a reference voltage.