Samsung Display Co., Ltd.

Hakmo Choi

Seungho Park

Hyungwoo Yim

Seyun Kim

Kyung-sik Joo

Huisu Kim

A method of detecting a stain of a display panel is disclosed that includes capturing a first color image of the display panel, capturing a second color image of the display panel, generating a merged image by merging a color coordinate map of the first color image and a color coordinate map of the second color image, generating a background image of the merged image by a morphology filtering, generating a flattened image by operating the merged image and the background image and detecting an area of the flattened image in which a color coordinate value exceeds a threshold value as a stain area.

Method of detecting stain of display panel, method of compensating stain of display panel including the same and display apparatus configured to perform the same

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.

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Seoul, South Korea

Hakmo Choi