	US 11,928,995 B2
	Display test apparatus and method of fabricating display device(s)
Joo Hyuk Yum, Yongin-si (KR); Deok Soo Park, Hwaseong-si (KR); and Byoung-Ju Song, Gwangju (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jan. 21, 2022, as Appl. No. 17/581,234.
Claims priority of application No. 10-2021-0076660 (KR), filed on Jun. 14, 2021.
Prior Publication US 2022/0398955 A1, Dec. 15, 2022
Int. Cl. G09G 3/00 (2006.01); H01L 51/56 (2006.01); H10K 71/00 (2023.01)

CPC G09G 3/006 (2013.01) [H10K 71/00 (2023.02); G09G 2320/0242 (2013.01)]

20 Claims

1. A display test apparatus, comprising:

a measuring apparatus configured to accommodate a first display device including a first display panel and a second display device including a second display panel; and

a calculating device connected to the measuring apparatus,

wherein the measuring apparatus is further configured to provide a sample pixel value to the first display device and the second display device, measure a first color coordinate value associated with a first display image of the first display panel in response to the sample pixel value, and measure a second color coordinate value associated with a second display image of the second display panel in response to the sample pixel value, and

the calculating device is further configured to generate a first parameter of the first display panel in response to the first color coordinate value, generate a second parameter, different from the first parameter, of the second display panel in response to the second color coordinate value, generate a target color coordinate value in response to the sample pixel value, generate a first mapping table in response to the first color coordinate value, the first parameter and the target color coordinate value, and generate a second mapping table, different from the first mapping table, in response to the second color coordinate value, the second parameter, and the target color coordinate value.