公开(公告)号：US20230326425A1

公开(公告)日：2023-10-12

申请号：US18097948

申请日：2023-01-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyounghwan KWON ,  Wonseok KIM ,  Wangsuk SUNG ,  Sangmin LEE ,  Seonmee LEE ,  Woonyoung LEE

IPC: G09G5/00

CPC classification number: G09G5/003 ,  G09G2310/0243

Abstract: An operating method of a display driver integrated circuit (DDI) includes determining whether a change to a level of a first logic voltage supplied to a logic circuit of the DDI is required, based on determining that a change to the level of the first logic voltage is required, transmitting a logic voltage setting command to a power management integrated circuit (PMIC), and receiving, from the PMIC, a second logic voltage having a level different from the first logic voltage and corresponding to the logic voltage setting command.