US 12,245,453 B2
Display device
Jungi Kim, Hwaseong-si (KR); Jeong Won Kim, Hwaseong-si (KR); Woongsik Kim, Hwaseong-si (KR); Donghwan Bae, Seoul (KR); and Jin-Su Byun, Seoul (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on May 17, 2022, as Appl. No. 17/746,289.
Claims priority of application No. 10-2021-0120285 (KR), filed on Sep. 9, 2021.
Prior Publication US 2023/0074647 A1, Mar. 9, 2023
Int. Cl. H10K 50/844 (2023.01); H10K 50/858 (2023.01)
CPC H10K 50/844 (2023.02) [H10K 50/858 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate including a display area and a non-display area surrounding the display area;
a light emitting structure disposed on the substrate in the display area;
a thin film encapsulation layer disposed on the light emitting structure;
an optical structure disposed on the thin film encapsulation layer, wherein the optical structure includes:
a first refractive pattern disposed on the thin film encapsulation layer and overlapping the light emitting structure; and
a second refractive pattern covering the first refractive pattern, having a refractive index smaller than a refractive index of the first refractive pattern, and including an organic material; and
a partition wall disposed on the substrate in the non-display area and surrounding the second refractive pattern.