公开(公告)号：US11741865B2

公开(公告)日：2023-08-29

申请号：US17191600

申请日：2021-03-03

Applicant: Samsung Display Co., Ltd.

Inventor： Sihun Jang ,  Seyun Kim ,  Sangcheol Park ,  Mingyu Kim

IPC: G09G3/00 ,  G09G3/34

CPC classification number: G09G3/006 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2320/0233 ,  G09G2340/04

Abstract: A test apparatus includes a mura detection filter for detecting a mura area based on a detected image signal and outputting position information of the mura area and a filtered image signal, an image enhancement processor for performing deblurring on the filtered image signal based on the position information and outputting a deblurred image signal, a mura corrector for generating first compensation data for the mura area based on the deblurred image signal, a sampling corrector for generating second compensation data for a non-mura area based on the detected image signal, and a compensator for outputting compensation data based on the first compensation data and the second compensation data.