US 12,243,964 B2
Display device using micro LED having outward protrusion for assembly and manufacturing method therefor
Wonjae Chang, Seoul (KR); Jisoo Ko, Seoul (KR); Hyeyoung Yang, Seoul (KR); and Hyunwoo Cho, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/633,520
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Aug. 21, 2019, PCT No. PCT/KR2019/010638
§ 371(c)(1), (2) Date Feb. 7, 2022,
PCT Pub. No. WO2021/033801, PCT Pub. Date Feb. 25, 2021.
Claims priority of application No. 10-2019-0101594 (KR), filed on Aug. 20, 2019.
Prior Publication US 2022/0293823 A1, Sep. 15, 2022
Int. Cl. H01L 33/38 (2010.01); H01L 27/15 (2006.01); H01L 33/00 (2010.01); H01L 33/62 (2010.01)
CPC H01L 33/382 (2013.01) [H01L 27/156 (2013.01); H01L 33/005 (2013.01); H01L 33/62 (2013.01); H01L 2933/0016 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A display device using semiconductor light emitting elements, the display device comprising:
a substrate;
assembly electrodes located on the substrate;
an insulating layer located on the assembly electrodes;
a partition located on the insulating layer;
a first assembly recess defined by the partition; and
a first semiconductor light emitting element disposed in the first assembly recess and comprising at least one outward protrusion protruding laterally outward from a side surface thereof,
wherein the first assembly recess is formed to include at least one inward protrusion protruding laterally inward from a side surface of the partition defining the first assembly recess,
wherein the first assembly recess is symmetrical along a first axis bisecting the at least one inward protrusion and the first semiconductor light emitting element is symmetrical along a second axis bisecting the at least one outward protrusion wherein positioning of the first semiconductor light emitting element in the first assembly recess requires the first axis and the second axis being misaligned.