公开(公告)号：US11830453B2

公开(公告)日：2023-11-28

申请号：US17742992

申请日：2022-05-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jonghoon Jung ,  Sungyeol Kim ,  Seungyong Shin ,  Junsung Choi

IPC: G09G3/36 ,  G09G3/34

CPC classification number: G09G3/3648 ,  G09G3/3426 ,  G09G2320/0233 ,  G09G2330/021

Abstract: A display apparatus includes a liquid crystal panel, a power supply, a backlight unit including a plurality of sub-blocks configured to radiate light to the liquid crystal panel, and a controller configured to determine a peak voltage and a source voltage supplied to each of the plurality of sub-blocks. Each of the plurality of sub-blocks includes a first switching element configured to receive the peak voltage as a gate voltage, and a second switching element including a drain terminal connected to a source terminal of the first switching element, the second switching element configured to receive an amount of charges corresponding to the source voltage through a gate terminal.