US 12,317,730 B2
Display device
Yong Seok Kim, Yongin-si (KR); Sikwang Kim, Yongin-si (KR); Youngchan Kim, Yongin-si (KR); Minhee Son, Yongin-si (KR); Saet Byeol Shin, Yongin-si (KR); and Junhyuk Woo, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Dec. 30, 2022, as Appl. No. 18/091,972.
Claims priority of application No. 10-2021-0192243 (KR), filed on Dec. 30, 2021; and application No. 10-2022-0109329 (KR), filed on Aug. 30, 2022.
Prior Publication US 2023/0217794 A1, Jul. 6, 2023
Int. Cl. H10K 59/80 (2023.01); G02F 1/1333 (2006.01); G02F 1/1335 (2006.01); G02F 1/13357 (2006.01); G02F 1/1343 (2006.01); G02F 1/137 (2006.01); H10K 59/12 (2023.01); H10K 59/50 (2023.01); H10K 59/40 (2023.01)
CPC H10K 59/8792 (2023.02) [G02F 1/13338 (2013.01); G02F 1/133512 (2013.01); G02F 1/133621 (2013.01); G02F 1/134309 (2013.01); G02F 1/137 (2013.01); H10K 59/12 (2023.02); H10K 59/50 (2023.02); H10K 59/873 (2023.02); H10K 59/40 (2023.02)] 16 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate;
a light emitting element which is on the substrate and emits light in a thickness direction of the display device;
a side wall layer including a plurality of light control patterns arranged along a direction parallel to a major surface of the substrate, wherein the side wall layer is adjacent to the light emitting element in the thickness direction;
a transmission pattern disposed between the plurality of light control patterns;
a black matrix disposed between the plurality of light control patterns and which does not overlap the light emitting element in the thickness direction; and
a touch sensing layer configured to sense an external input from outside, wherein the touch sensing layer includes a touch electrode overlapping the black matrix in the thickness direction and not overlapping the light control patterns in the thickness direction, and a planarization layer disposed between the touch electrode and the black matrix,
wherein bottom surfaces of the plurality of light control patterns, the black matrix, and the transmission pattern are disposed on a top surface of the planarization layer,
wherein a width of each of the plurality of light control patterns in the direction parallel to the major surface of the substrate is different from a width of the black matrix in the direction parallel to the major surface of the substrate,
wherein within the side wall layer:
each of the plurality of light control patterns has a certain height,
the plurality of light control patterns are spaced apart from each other by a certain distance between two adjacent light control patterns of the light control patterns, and
a ratio of the height to the distance is greater than about 1.4.