US 12,352,702 B2
Method and system for evaluating lifespan of organic light emitting display panel
Si Jin Sung, Yongin-si (KR); Jae Hong Kim, Yongin-si (KR); Hyo Min Kim, Yongin-si (KR); Ill Soo Park, Yongin-si (KR); and Jong Seok Han, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Jul. 8, 2022, as Appl. No. 17/860,714.
Claims priority of application No. 10-2021-0136097 (KR), filed on Oct. 13, 2021.
Prior Publication US 2023/0116648 A1, Apr. 13, 2023
Int. Cl. G09G 3/32 (2016.01); G01N 21/95 (2006.01); G09G 3/3225 (2016.01)
CPC G01N 21/95 (2013.01) [G09G 3/3225 (2013.01); G09G 2320/048 (2013.01); G09G 2360/147 (2013.01); G09G 2360/16 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for evaluating a lifespan of an organic light emitting display panel, the method comprising:
aging an organic light emitting display panel, including first light emitting elements for emitting a first color, second light emitting elements for emitting a second color, and third light emitting elements for emitting a third color, during a preset aging period by displaying the first color in a first pattern area of the organic light emitting display panel and displaying a fourth color in a second pattern area of the organic light emitting display panel;
measuring luminances of the first pattern area and the second pattern area by displaying the first color in the first pattern area and the first color in the second pattern area during a measurement period, while displaying the fourth color, which is different from the first color, in the second pattern area during the preset aging period; and
calculating a lifespan of the first light emitting elements based on the measured luminance of the first pattern area and the measured luminance of the second pattern area.