公开(公告)号：US20210065621A1

公开(公告)日：2021-03-04

申请号：US17005902

申请日：2020-08-28

Applicant: LG ELECTRONICS INC.

Inventor： Jongmin LEE ,  Myongyoung LEE ,  Kyuyong CHUNG ,  Sangchul NAM ,  Seokpan KANG

IPC: G09G3/3208 ,  G09G5/10

Abstract: An image display apparatus is disclosed. The image display apparatus includes a panel configured to display an image, a backlight including a plurality of light sources configured to output light to the panel, a light source driver configured to drive the plurality of light sources, and a processor configured to control the light source driver, wherein the processor changes the turn on duty of a light source corresponding to a moving object area in an input image and changes the level of current flowing in the light source. Consequently, the definition and luminance of an image including a moving object may be improved.

公开(公告)号：US20250069567A1

公开(公告)日：2025-02-27

申请号：US18718217

申请日：2021-12-15

Applicant: LG ELECTRONICS INC.

Inventor： Sungon JUNG ,  Sunwoo JUNG ,  Myongyoung LEE ,  Kyuyong CHUNG ,  Wonki LEE ,  Jongmin LEE

IPC: G09G5/02 ,  G06F1/16 ,  G09G3/00 ,  G09G3/32

Abstract: In one embodiment of the present invention, a display device is provided, the display device comprising: a body including a display module that outputs images; one or more lights positioned behind the body; and a control unit, wherein the control unit determines whether the display module is in operation and identifies the shape of the display module.

公开(公告)号：US20240038184A1

公开(公告)日：2024-02-01

申请号：US18254784

申请日：2020-11-27

Applicant: LG ELECTRONICS INC.

Inventor： Jongmin LEE ,  Sunwoo JUNG ,  Myongyoung LEE ,  Kyuyong CHUNG ,  Wonki LEE ,  Seokpan KANG

IPC: G09G3/34

CPC classification number: G09G3/3426 ,  G09G2320/0252

Abstract: The present disclosure relates to an image display apparatus. The image display apparatus according to an embodiment of the present disclosure includes a display panel; a plurality of light sources configured to output light to the display panel; a plurality of switching elements configured to switch the light sources, respectively; and a processor configured to output a switching control signal having variable amplitude to the switching element, wherein the processor controls a driving frequency of the light source to be a second frequency higher than a first frequency corresponding to a vertical synchronization signal of the panel. Thus, the sharpness of the image can be improved.

公开(公告)号：US20210304689A1

公开(公告)日：2021-09-30

申请号：US16918846

申请日：2020-07-01

Applicant: LG ELECTRONICS INC.

Inventor： Yeonoh NAM ,  Kyuyong CHUNG ,  Jongmin LEE

IPC: G09G3/34

Abstract: Provided are a display device and an operating method thereof. The display device includes a liquid crystal display panel, a backlight unit including a plurality of light sources for supplying light to the liquid crystal display panel and driven in a state of being divided into a plurality of blocks corresponding to the number of the light sources, and a backlight dimming controller configured to calculate dimming values of the plurality of blocks. The backlight dimming controller is configured to divide each of the plurality of blocks into a plurality of unit blocks and control brightness of an output image differently for each of the unit blocks.