公开(公告)号：US20210090506A1

公开(公告)日：2021-03-25

申请号：US16886566

申请日：2020-05-28

Applicant: LG Display Co., Ltd.

Inventor： Nak-Yoon KIM ,  Ji-Su KIM ,  Hong-Soon KIM

IPC: G09G3/3275

Abstract: A power supply includes a boost circuit having a first boost circuit configured to output a first driving voltage to be supplied to the display panel by stepping unit an input voltage and a second boost circuit configured to output a second driving voltage to be supplied to the display panel by stepping down the input voltage, and a correction circuit configured to output a correction signal based on a result obtained by sensing the input voltage, and controls output efficiency of the boost circuit based on the input voltage and current sensed from the display panel.