公开(公告)号：US11978403B2

公开(公告)日：2024-05-07

申请号：US18113602

申请日：2023-02-23

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun Pyun ,  Jin Won Lee

IPC: G09G3/3266 ,  G09G3/3291

CPC classification number: G09G3/3266 ,  G09G3/3291 ,  G09G2300/0842 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2360/14

Abstract: A display device for performing a sensing operation according to an embodiment of the present inventive concept includes a pixel unit including pixel circuits each including a light emitting element, a driving transistor, a switching transistor, and a sensing control transistor connected between an anode electrode and an initialization power source; a scan driver connected to the pixel circuits through horizontal lines and sequentially outputting scan signals and sensing control signals; and a sensing unit configured to sense voltages or current of first nodes each disposed between an anode electrode and a driving transistor. The scan driver simultaneously outputs the sensing control signals to the horizontal lines at every predetermined discharge cycle.

公开(公告)号：US20220157915A1

公开(公告)日：2022-05-19

申请号：US17465795

申请日：2021-09-02

Applicant: Samsung Display Co., Ltd.

Inventor： Woo Geun LEE ,  Young Jae Jeon ,  Woo Bin Lee ,  Jin Won Lee

IPC: H01L27/32

Abstract: A display device including a substrate; a signal line disposed on the substrate and to which a predetermined voltage signal is applied; a power auxiliary line to which a first source voltage is applied; a first driving voltage line to which a first driving voltage higher than the first source voltage is applied; and a first transistor disposed between the signal line and the first driving voltage line. The first transistor includes a first lower gate electrode connected to the power auxiliary line and a first upper gate electrode connected to the signal line.