公开(公告)号：US20220199006A1

公开(公告)日：2022-06-23

申请号：US17594153

申请日：2019-05-31

Applicant: LG ELECTRONICS INC.

Inventor： Youngho CHUN ,  Byungwoo RYU ,  Hyungil LEE ,  Joonduck JANG

IPC: G09G3/3208

Abstract: The present specification discloses a display device which, upon consecutive viewing of images of different frequencies, may improve abnormalities on a screen according to frequency change, and a method for controlling same. A digital device, according to one embodiment of the present invention, comprises: a processor; a display unit comprising a plurality of pixels; and a timing controller for temporally controlling a driving frequency such that the display device is driven, wherein the timing controller controls a light-emitting signal at a preset duty ratio in one frame interval, and when the display unit displays an image of a first input frequency and thereafter displays an image of a second input frequency, a value of a vertical blanking interval for each frame interval gradually changes.

公开(公告)号：US20220321973A1

公开(公告)日：2022-10-06

申请号：US17597237

申请日：2019-07-02

Applicant: LG ELECTRONICS INC.

Inventor： Youngho CHUN ,  Hyungil LEE

IPC: H04N21/485 ,  G09G5/10

Abstract: The present invention relates to a display device and a control method therefor, and involves the concept of controlling a display to reduce luminance from a default luminance to a first luminance for a first reduction time when brightness of a fixed area is maintained for a first predetermined time or more, and controlling the display to increase the luminance from the first luminance to the default luminance, when a set-top box receives, from an external device within a second predetermined time, a first signal for changing a screen from a first screen to a second screen.