公开(公告)号：US20210201815A1

公开(公告)日：2021-07-01

申请号：US17123477

申请日：2020-12-16

Applicant: LG Display Co., Ltd.

Inventor： Seungjong BONG ,  Junghoon SEO

IPC: G09G3/3266

Abstract: Disclosed herein are a display device and a method for controlling the same, and more particularly, to a display device and a method for controlling the same that may compensate degradation of a display panel and may improve image quality. According to the method for controlling the display device of an embodiment, a pattern image is displayed respectively on a plurality of scan blocks set on the display panel. When the pattern image is displayed respectively on the plurality of scan blocks set on the display panel, a current value of each scan block is measured. Then a representative current value is compared with a predetermined reference value, and it is determined whether compensation data of each pixel included in each of the scan blocks is updated.

公开(公告)号：US20230252946A1

公开(公告)日：2023-08-10

申请号：US18012550

申请日：2021-06-21

Applicant: LG DISPLAY CO., LTD. ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY

Inventor： Joon-Hyuk CHANG ,  Kwanghwan JI ,  Kwan-Ho PARK ,  Kiseok CHANG ,  Junghoon SEO ,  Kipyo HONG ,  Hyojung PARK ,  Seunghyuck LEE

IPC: G09G3/3291 ,  G09G3/3266 ,  G06N3/08

CPC classification number: G09G3/3291 ,  G09G3/3266 ,  G06N3/08 ,  G09G2310/08 ,  G09G2320/046 ,  G09G2360/16 ,  G09G2310/0289

Abstract: The present invention relates to a display apparatus that allows a compensated data voltage to be supplied to each pixel by compensating for the data voltage so as to prevent burn-in from occurring in a display panel, a method for compensating a data signal thereof, and a method for generating a deep learning-based compensation model. To implement same, the present invention provides the display apparatus comprising a timing controller having mounted therein the compensation model generated by learning, in a deep learning method, the temperature, time, average brightness, and data voltage for each pixel. Accordingly, the present invention has an effect of preventing burn-in from occurring in each pixel by supplying each pixel with the compensated data voltage generated via the compensation model.

公开(公告)号：US20190066555A1

公开(公告)日：2019-02-28

申请号：US16052202

申请日：2018-08-01

Applicant: LG Display Co., Ltd.

Inventor： Heon GU ,  Hyojung PARK ,  Junghoon SEO

IPC: G09G3/00 ,  G09G3/3225

CPC classification number: G09G3/006 ,  G09G3/3225 ,  G09G2300/043 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0271 ,  G09G2320/0285 ,  G09G2320/045 ,  G09G2360/145 ,  G09G2360/16

Abstract: A luminance compensation system of a display device and a luminance compensation method thereof are disclosed. The luminance compensation system includes a display panel including a plurality of pixels, a TFT and an OLED, a luminance meter configured to measure luminance at a plurality of positions and obtain a plurality of measure values for each of the plurality of positions in a state where modeling voltage patterns are applied to the plurality of positions, a first modeling unit configured to model the plurality of measure values to derive a first luminance characteristic approximate equation, and a second modeling unit configured to obtain a luminance error between the measure value and a luminance value in accordance with the first luminance characteristic approximate equation, after calculating an offset correction parameter, and apply the offset correction parameter to the first luminance characteristic approximate equation to derive a second luminance characteristic approximate equation.