US 12,356,769 B2
Display device
Hae Yun Choi, Hwaseong-si (KR); Jin Taek Park, Seoul (KR); Ki Seong Seo, Seoul (KR); Dae Ho Song, Hwaseong-si (KR); So Young Yeo, Suwon-si (KR); So Yeon Yoon, Uijeongbu-si (KR); and Byeong Hwa Choi, Seoul (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Apr. 25, 2022, as Appl. No. 17/660,591.
Claims priority of application No. 10-2021-0056711 (KR), filed on Apr. 30, 2021.
Prior Publication US 2022/0352428 A1, Nov. 3, 2022
Int. Cl. H01L 33/50 (2010.01); H01L 33/60 (2010.01); H10H 20/851 (2025.01); H10H 20/856 (2025.01)
CPC H10H 20/8512 (2025.01) [H10H 20/856 (2025.01)] 19 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate;
a partition wall on the substrate;
a light-emitting element in an emission area partitioned by the partition wall on the substrate, and extending in a thickness direction of the substrate;
a wavelength conversion layer over the light-emitting element in the emission area, and comprising a base resin, and a scatterer dispersed in the base resin and that converts a wavelength of light emitted from the light-emitting element;
a light-blocking member on the partition wall; and
at least one optical pattern on the wavelength conversion layer in the emission area, and having an upwardly protruding shape,
wherein the partition wall comprises a first partition wall comprising a same material as the light-emitting element,
wherein the light-emitting element comprises a first semiconductor layer, an active layer on the first semiconductor layer, and a second semiconductor layer on the active layer, and
wherein the first partition wall comprises a first subsidiary partition wall comprising a same material as the first semiconductor layer, a second subsidiary partition wall comprising a same material as the active layer, and a third subsidiary partition wall comprising a same material as the second semiconductor layer.