公开(公告)号：US12154499B2

公开(公告)日：2024-11-26

申请号：US17773358

申请日：2019-10-31

Applicant: LG ELECTRONICS INC.

Inventor： Yunjun Choi ,  Jongchan Kim ,  Kyeongryeol Park ,  Jeonghyu Yang ,  Seungjong Choi

IPC: G09G3/3233

Abstract: A signal processing device and an image display apparatus including the same are disclosed. A signal processing device and an image display apparatus including the same according to an embodiment of the present disclosure includes: an afterimage analyzer to calculate image accumulation information based on an input image, an afterimage learning processor to perform learning based on the image accumulation information and adjust an afterimage reducing strength based on the learning, and an afterimage reducing processor to perform an afterimage reducing process based on the afterimage reducing strength from the afterimage learning processor. Accordingly, an afterimage of the image display apparatus including the organic light emitting diode panel may be reduced.

公开(公告)号：US11900005B2

公开(公告)日：2024-02-13

申请号：US17438219

申请日：2020-03-13

Applicant: LG ELECTRONICS INC.

Inventor： Hyunchul Noh ,  Jeonghyu Yang ,  Yunjun Choi

IPC: G06F3/14 ,  G09G3/3208

CPC classification number: G06F3/1446 ,  G09G3/3208 ,  G09G2300/026 ,  G09G2320/0257 ,  G09G2320/045 ,  G09G2320/046 ,  G09G2320/103 ,  G09G2360/145 ,  G09G2360/16

Abstract: The present disclosure relates to a video wall. The video wall according to an embodiment of the present disclosure comprises: a plurality of displays; an image divider configured to divide an input image into a plurality of images; and at least one controller, wherein in response to a video being repeatedly played back, the at least one controller is configured to calculate an accumulated luminance value for each block on the plurality of displays during a first period when the video is repeatedly played back and calculate a luminance compensation value for each block based on the calculated accumulated luminance, and the plurality of displays display the video based on the luminance compensation value during a second period following the first period. Accordingly, an afterimage occurring due to the repeatedly played video may be reduced.