US 12,436,499 B2
Display device
Ji Won Jung, Yongin-si (KR); and Guanghai Jin, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on May 9, 2024, as Appl. No. 18/659,340.
Claims priority of application No. 10-2023-0107396 (KR), filed on Aug. 17, 2023.
Prior Publication US 2025/0060701 A1, Feb. 20, 2025
Int. Cl. G03H 1/02 (2006.01); G09G 3/3233 (2016.01); H10K 59/121 (2023.01); G03H 1/00 (2006.01)
CPC G03H 1/02 (2013.01) [G09G 3/3233 (2013.01); H10K 59/121 (2023.02); G03H 2001/0088 (2013.01); G03H 2001/0224 (2013.01); G09G 2320/0233 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A display device comprising:
at least one spatial light modulator displaying an image;
a surface light source device providing an image display light from a rear direction of the at least one spatial light modulator to the at least one spatial light modulator as a background light; and
at least one image transmission member forming a display path of an image displayed through at least one spatial light modulator,
wherein the surface light source device comprises:
an organic light emitting display surface in which a plurality of light emitting pixels are disposed; and
an emission driving circuit setting a light emission compensation value for each of block areas of the organic light emitting display surface according to an average value of light emission grayscale deviation for each of the block areas of the organic light emitting display surface and compensating light emission grayscale in respect to the plurality of light emitting pixels by using the light emission compensation value for each of the block areas for driving.