US 12,268,041 B2
Display module and manufacturing method thereof
Jenghun Suh, Suwon-si (KR); Jihoon Kang, Suwon-si (KR); and Myunghee Kim, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Nov. 3, 2021, as Appl. No. 17/518,092.
Application 17/518,092 is a continuation of application No. PCT/KR2021/013792, filed on Oct. 7, 2021.
Claims priority of application No. 10-2021-0014839 (KR), filed on Feb. 2, 2021.
Prior Publication US 2022/0246672 A1, Aug. 4, 2022
Int. Cl. H01L 27/15 (2006.01); H01L 33/00 (2010.01); H01L 33/10 (2010.01); H01L 33/50 (2010.01); H01L 33/56 (2010.01); H10H 20/01 (2025.01); H10H 20/814 (2025.01); H10H 20/851 (2025.01); H10H 20/854 (2025.01); H10H 29/14 (2025.01)
CPC H10H 29/142 (2025.01) [H10H 20/01 (2025.01); H10H 20/814 (2025.01); H10H 20/8512 (2025.01); H10H 20/854 (2025.01); H10H 20/0361 (2025.01)] 15 Claims
OG exemplary drawing
 
1. A display module comprising:
a substrate; and
a plurality of pixels provided on the substrate,
wherein a first pixel of the plurality of pixels comprises:
a first inorganic light emitting element, a second inorganic light emitting element and a third inorganic light emitting element, each of the first inorganic light emitting element, the second inorganic light emitting element and the third inorganic light emitting element being configured to emit light of a same color;
a first light dispersing layer provided on a light emitting surface of the first inorganic light emitting element, a second light dispersing layer provided on a light emitting surface of the second inorganic light emitting element and a third light dispersing layer provided on a light emitting surface of the third inorganic light emitting element;
a first color conversion layer provided on the first light dispersing layer and a second color conversion layer provided on the second light dispersing layer; and
a first color filter provided on the first color conversion layer and a second color filter provided on the second color conversion layer,
a partition wall between the first inorganic light emitting element, the second inorganic light emitting element and the third inorganic light emitting element; and
an optical adhesive provided between a side surface of the first inorganic light emitting element and the partition wall, between a side surface of the second inorganic light emitting element and the partition wall, and between the third inorganic light emitting element and the partition wall,
wherein the optical adhesive is in direct contact with each of a part of a side surface of the first inorganic light emitting element, a part of a lower side surface of the partition wall, and a part of a bottom surface of the first light dispersing layer,
wherein the optical adhesive is further in direct contact with each of a part of a side surface of the second inorganic light emitting element, a part of a lower side surface of the partition wall, and a part of a bottom surface of the second light dispersing layer, and
wherein optical adhesive is further in direct contact with each of a part of a side surface of the third inorganic light emitting element, a part of a lower side surface of the partition wall, and a part of a bottom surface of the third light dispersing layer.
 
12. A display device comprising:
a substrate; and
a plurality of pixels provided on an upper surface of the substrate,
wherein a first pixel of the plurality of pixels comprise:
a first light emitting element configured to emit light of a first color;
a first light dispersing layer provided on the first light emitting element;
a first color conversion layer provided on the first light dispersing layer;
a second light emitting element configured to emit light of the first color;
a second light dispersing layer provided on the second light emitting element;
a second color conversion layer provided on the second light dispersing layer;
a partition wall between the first light emitting element and the second light emitting element; and
an optical adhesive provided between a side surface of the first light emitting element and the partition wall, between a side surface of the second light emitting element and the partition wall, and between the first light dispersing layer and the substrate,
wherein a sidewall of the first light dispersing layer and a sidewall of the first color conversion layer are coplanar,
wherein a sidewall of the second light dispersing layer and a sidewall of the second color conversion layer are coplanar,
wherein the optical adhesive is in direct contact with each of a part of a side surface of the first light emitting element, a part of a lower side surface of the partition wall, and a part of a bottom surface of the first light dispersing layer, and
wherein the optical adhesive is further in direct contact with each of a part of a side surface of the second light emitting element, a part of a lower side surface of the partition wall, and a part of a bottom surface of the second light dispersing layer.