公开(公告)号：US20210398462A1

公开(公告)日：2021-12-23

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

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.