公开(公告)号：US11741890B2

公开(公告)日：2023-08-29

申请号：US17952013

申请日：2022-09-23

Applicant: LG DISPLAY CO., LTD.

Inventor： SeungSeok Ryoo ,  Byeong-Seong So

IPC: G09G3/3266 ,  G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0426 ,  G09G2300/0876 ,  G09G2310/08 ,  G09G2330/028

Abstract: The present disclosure relates to a power supply device including a gate driving circuit configured to supply gate signals to a plurality of gate lines, a first power supply circuit configured to supply a first initialization voltage having a voltage level between a first voltage level and a second voltage level to a plurality of first initialization power lines, the first initialization voltage having the first voltage level in a first period, a third voltage level between the first and second voltage levels in a second period, and the second voltage level in a third period, and a second power supply circuit configured to supply a driving voltage to a plurality of driving power lines among the plurality of power lines, and a display device including the power supply device.