US 12,217,415 B2
Method of manufacturing a display device
Tae-Jin Hwang, Gwacheon-si (KR); and Hyeongmin Ahn, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Jul. 7, 2022, as Appl. No. 17/859,358.
Claims priority of application No. 10-2021-0129255 (KR), filed on Sep. 29, 2021.
Prior Publication US 2023/0101745 A1, Mar. 30, 2023
Int. Cl. G06T 7/00 (2017.01); G06T 5/50 (2006.01); G06T 5/70 (2024.01); G06T 5/80 (2024.01); G06F 3/041 (2006.01)
CPC G06T 7/001 (2013.01) [G06T 5/50 (2013.01); G06T 5/70 (2024.01); G06T 5/80 (2024.01); G06F 3/041 (2013.01); G06F 2203/04103 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of manufacturing a display device, the method comprising:
preparing a cover substrate assembly including a cover substrate, a protective film attached to a lower surface of the cover substrate, and an inspection pattern disposed between the cover substrate and the protective film;
obtaining a first image by imaging the inspection pattern through an upper surface of the cover substrate;
obtaining noise data by comparing a reference image of the inspection pattern with the first image;
obtaining a second image by imaging the cover substrate assembly;
obtaining a corrected image of the second image by reflecting the noise data in the second image; and
detecting a defect of the cover substrate based on the corrected image of the second image.