US 12,127,428 B2
Display device
Kyung Seon Tak, Hwaseong-si (KR); Young Gu Kim, Yongin-si (KR); Ji Yun Park, Hwaseong-si (KR); Bong Sung Seo, Suwon-si (KR); Jong Ho Son, Seoul (KR); Yeon Hee Lee, Asan-si (KR); and Baek Kyun Jeon, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Aug. 16, 2021, as Appl. No. 17/445,114.
Claims priority of application No. 10-2020-0145178 (KR), filed on Nov. 3, 2020.
Prior Publication US 2022/0140289 A1, May 5, 2022
Int. Cl. H10K 50/858 (2023.01); H10K 59/122 (2023.01)
CPC H10K 50/858 (2023.02) [H10K 59/122 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel; and
an optical path adjustment film on the display panel,
wherein the display panel comprises:
a substrate;
a first electrode on the substrate;
a bank layer on the first electrode and partially exposing an upper surface of the first electrode;
light-emitting layer on the upper surface of the first electrode exposed by the bank layer;
a second electrode on the light-emitting layer and the bank layer;
a high-refractive lens on the second electrode and having a refractive index higher than a refractive index of a material that overlaps the first electrode in a thickness direction of the display device and contacts a side surface of the high-refractive lens; and
an encapsulation member that faces the substrate, is on the high-refractive lens, and seals the light-emitting layer;
wherein the optical path adjustment film comprises;
a plurality of protruding patterns on the encapsulation member; and
a cover layer in spaces between adjacent protruding patterns from among the plurality of protruding patterns, and
wherein a refractive index of each of the protruding patterns is smaller than a refractive index of the cover layer.