公开(公告)号：US12236853B2

公开(公告)日：2025-02-25

申请号：US18457897

申请日：2023-08-29

Applicant: Samsung Display Co., LTD.

Inventor： Won Jun Lee ,  Yong Bin Kim ,  Chol Ho Kim

IPC: G09G5/10 ,  G09G3/20 ,  G09G3/32 ,  H01L25/16

Abstract: A pixel includes a first transistor generating current from a first power source line to a second power source line through a light-emitting element, a second transistor between a third power source line and a gate electrode of the first transistor, a third transistor between a data line and a gate electrode of the second transistor and controlled by a first signal, a fourth transistor between a fourth power source line and a first node and controlled by a second signal, a first capacitor between the gate electrode of the first transistor and the first node, and a second capacitor between the gate electrode of the second transistor and a sweep voltage line providing a sweep voltage that linearly changes from a first voltage level to a second voltage level, and nonlinearly changes from the second voltage level to a third voltage level when the third transistor is on.

公开(公告)号：US11380233B2

公开(公告)日：2022-07-05

申请号：US17197963

申请日：2021-03-10

Applicant: Samsung Display Co., Ltd.

Inventor： Ji Young Lee ,  Yong Bin Kim ,  Gun Woo Yang ,  Hyun Young Choi

IPC: G09G3/00 ,  G09G3/3266 ,  G09G3/3233 ,  G09G3/3275

Abstract: A display device includes: a plurality of pixels connected to scan lines, emission control lines, data lines, and a power line; a scan driver configured to supply a scan signal to the scan lines; and an emission driver configured to supply an emission control signal to the emission control lines, wherein a voltage of a first power supplied to the power line during an inspection period has a pulse form alternating between a first level and a second level that is lower than the first level, and the display device is configured to maintain the voltage of the first power at a third level.