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.

公开(公告)号：US11538149B2

公开(公告)日：2022-12-27

申请号：US16894660

申请日：2020-06-05

Applicant: Samsung Display Co., Ltd.

Inventor： Seyun Kim ,  Hoisik Moon ,  Mingyu Kim ,  Sangcheol Park ,  Jae-Seok Choi

IPC: G06T7/00

Abstract: Provided is a spot detection device including an imager configured to capture a display panel displaying a first image of a first grayscale and a second image of a second grayscale different from the first grayscale and generate image data, and a spot detector configured to receive the image data from the imager in order to detect a spot. The image data includes first image data obtained by capturing the first image, second image data obtained by capturing the second image, and a plurality of third image data obtained by capturing portions of the first image.