US 12,456,713 B2
Display apparatus using semiconductor light-emitting device
Soohyun Kim, Seoul (KR); Sungyun Park, Seoul (KR); Indo Chung, Seoul (KR); and Jeonghyo Kwon, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/794,395
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Feb. 12, 2020, PCT No. PCT/KR2020/001937
§ 371(c)(1), (2) Date Jul. 21, 2022,
PCT Pub. No. WO2021/149861, PCT Pub. Date Jul. 29, 2021.
Claims priority of application No. 10-2020-0008867 (KR), filed on Jan. 22, 2020.
Prior Publication US 2023/0049446 A1, Feb. 16, 2023
Int. Cl. H01L 25/075 (2006.01); H10H 20/01 (2025.01); H10H 20/857 (2025.01)
CPC H01L 25/0753 (2013.01) [H10H 20/857 (2025.01); H10H 20/018 (2025.01)] 10 Claims
OG exemplary drawing
 
1. A display device comprising:
a base;
partition walls defining a plurality of grooves;
a plurality of semiconductor light emitting devices disposed on the base part and seated in the plurality of grooves;
wherein for each of the plurality of grooves, the display device comprises:
first and second wiring electrodes respectively disposed at opposite ends of each of the semiconductor light emitting devices;
an assembly electrode disposed on the base along a first direction adjacent to the semiconductor light emitting devices;
a dielectric layer disposed on the base and disposed between the assembly electrode and the corresponding first wiring electrode; and
at least one recess portion formed in the groove, wherein the at least one recess portion comprises a first recess portion and a second recess portion extended from both sides of each of the plurality of grooves along a second direction perpendicular to the first direction,
wherein a diameter of each of the plurality of grooves is greater than that of each of the plurality of semiconductor light emitting devices, and a width of each of the first recess portion and the second recess portion is less than the diameter of the plurality of semiconductor light emitting devices.