US 12,456,652 B2
Method and system of manufacturing display device
Tae Hee Lee, Yongin-si (KR); Sung Kook Park, Yongin-si (KR); Joo Woan Cho, Yongin-si (KR); Jin Woo Choi, Yongin-si (KR); and Hae Yun Choi, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Mar. 30, 2022, as Appl. No. 17/708,693.
Claims priority of application No. 10-2021-0056007 (KR), filed on Apr. 29, 2021.
Prior Publication US 2022/0352042 A1, Nov. 3, 2022
Int. Cl. H01L 21/66 (2006.01); H01L 33/00 (2010.01); H10H 20/01 (2025.01); H01L 25/075 (2006.01)
CPC H01L 22/12 (2013.01) [H01L 22/14 (2013.01); H01L 22/32 (2013.01); H10H 20/01 (2025.01); H01L 25/0753 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method of manufacturing a display device, the method comprising:
aligning a first panel and a second panel by using an alignment apparatus, wherein
the first panel includes pixel driving circuits arranged on a first substrate,
each of the pixel driving circuits includes a transistor and a pixel electrode connected to the transistor, and
the second panel includes light emitting elements arranged on a second substrate;
bonding an end portion of at least one of the light emitting elements to the pixel electrode by using a bonding apparatus;
performing a lighting test on a mother panel by using a test apparatus, wherein the mother panel includes the first panel and the second panel, and is divided into a plurality of display panels in plan view; and
generating a defect management map for the plurality of display panels, based on a result of the lighting test.