公开(公告)号：US20210358394A1

公开(公告)日：2021-11-18

申请号：US17278440

申请日：2019-10-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Junichi YAMASHITA ,  Daisuke KAWAE ,  Shinji YAMASHITA

IPC: G09G3/32

Abstract: A display device includes a plurality of pixel circuits each including: a light-emitting element; a pulse width modulation (PWM) controller configured to control whether to supply current to the light-emitting element; and a constant current controller configured to supply the current to the light-emitting element, wherein the constant current controller, the PWM controller, and the light-emitting element are connected in series between a first power line and a second power line to supply the current to the light-emitting element; and a transistor configured to turn off the light-emitting element during a constant current setting period is provided between the first power line and the constant current controller.