US 11,844,240 B2
Display device and method of manufacturing the same
Jin-Su Byun, Seoul (KR); Sang Hyun Lee, Hwaseong-si (KR); Sae Hee Han, Seoul (KR); and Ji-Hyun Kim, Hwaseong-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Oct. 19, 2020, as Appl. No. 17/073,874.
Claims priority of application No. 10-2019-0144264 (KR), filed on Nov. 12, 2019.
Prior Publication US 2021/0143235 A1, May 13, 2021
Int. Cl. H01L 27/32 (2006.01); H10K 59/122 (2023.01); H10K 50/844 (2023.01); H10K 59/40 (2023.01); H10K 59/35 (2023.01); H10K 71/00 (2023.01); H10K 59/12 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 50/844 (2023.02); H10K 59/353 (2023.02); H10K 59/40 (2023.02); H10K 71/00 (2023.02); H10K 59/1201 (2023.02)] 15 Claims
OG exemplary drawing
 
1. A display device comprising:
a base substrate;
a pixel defining layer disposed on the base substrate and including a first opening;
a light emitting structure disposed in the first opening of the pixel defining layer;
a thin film encapsulation layer disposed on the light emitting structure;
a touch electrode disposed on the thin film encapsulation layer;
an insulating pattern disposed on the touch electrode and including a second opening which overlaps the first opening; and
a high refractive layer disposed on the insulating pattern, the high refractive layer including:
a plurality of grid patterns disposed on a top surface of the high refractive layer, wherein the grid pattern is arranged such as to reduce deviation in white angular difference (WAD) in the display device; and
a refractive index higher than a refractive index of the insulating pattern.