公开(公告)号：US12236572B2

公开(公告)日：2025-02-25

申请号：US18596017

申请日：2024-03-05

Applicant: Samsung Display Co., Ltd.

Inventor： Mingyu Kim ,  Seyun Kim ,  Seungho Park ,  Hyungwoo Yim

IPC: G06T7/00 ,  G09G3/20

Abstract: An inspection system for inspecting a display device including pixels includes a camera for capturing the display device and providing a sensing image signal and an inspection device for receiving the sensing image signal and outputting a compensation signal for compensating for luminance of a defective pixel. The inspection device includes an image detector outputting a sensing input signal corresponding to the sensing image signal, a defect coordinate detector detecting the defective pixel based on the sensing input signal and outputting defect coordinates indicating a position of the defective pixel, an image analyzer analyzing consistency of the defect coordinates based on the sensing image signal and the sensing input signal and outputting final coordinates, and a defect compensation calculator outputting a compensation signal for adjusting luminance of compensation pixels adjacent to the defective pixel from among the pixels based on the final coordinates.

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.

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.