公开(公告)号：US12073756B2

公开(公告)日：2024-08-27

申请号：US18102803

申请日：2023-01-30

Applicant: Samsung Display Co., Ltd.

Inventor： Sungjae Park ,  Seunghwan Park ,  Jinho Lee ,  Namjae Lim ,  Kyung-Sik Joo

IPC: G09G3/20

CPC classification number: G09G3/2007 ,  G09G2320/0233 ,  G09G2320/0673 ,  G09G2320/0686 ,  G09G2340/0435 ,  G09G2360/145

Abstract: A method of compensating for luminance of a display device includes determining position compensation values of each of panel blocks for measurement grayscale values based on a difference between luminance of a reference panel block and luminance of the each of the panel blocks for the measurement grayscale values, generating a first gamma curve for a first driving frequency and the position compensation values of the each of the panel blocks for the measurement grayscale values, generating a second gamma curve for a second driving frequency and the luminance of the panel blocks for the measurement grayscale values at the first driving frequency, and compensating for input image data based on the first gamma curve and the second gamma curve.

公开(公告)号：US12051346B2

公开(公告)日：2024-07-30

申请号：US17882663

申请日：2022-08-08

Applicant: Samsung Display Co., Ltd.

Inventor： Hyungwoo Yim ,  Seyun Kim ,  Huisu Kim ,  Hakmo Choi ,  Seungho Park ,  Kyung-Sik Joo

IPC: G09G3/00 ,  G09G3/20

CPC classification number: G09G3/006 ,  G09G3/2096 ,  G09G2320/0233 ,  G09G2330/10 ,  G09G2360/16

Abstract: A test method includes generating first image data by imaging a display panel including pixels, generating boundary data by detecting a spot area in the display panel based on the first image data, generating second image data by deblurring the first image data with respect to a boundary area disposed at a boundary of the spot area based on the boundary data and generating correction data by setting a correction area including the boundary area based on the second image data.