US 12,074,267 B2
Display apparatus using semiconductor light-emitting device
Hooyoung Song, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/291,145
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Nov. 5, 2019, PCT No. PCT/KR2019/014878
§ 371(c)(1), (2) Date May 4, 2021,
PCT Pub. No. WO2020/096314, PCT Pub. Date May 14, 2020.
Claims priority of application No. 10-2018-0137659 (KR), filed on Nov. 9, 2018.
Prior Publication US 2021/0376211 A1, Dec. 2, 2021
Int. Cl. H01L 33/62 (2010.01); H01L 25/075 (2006.01)
CPC H01L 33/62 (2013.01) [H01L 25/0753 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A display apparatus, comprising:
at least one horizontal semiconductor light emitting device having a first conductive electrode and a second conductive electrode;
a first wiring and a second wiring spaced apart from each other on a substrate, and electrically connected to the first and second conductive electrodes, respectively;
a first bump disposed between the first wiring and the first conductive electrode; and
a second bump disposed between the second wiring and the second conductive electrode,
wherein, in a state in which the first conductive electrode and the second conductive electrode are not electrically connected to the first and second wirings through the first bump and the second bump, respectively, at least one of the first and second bumps further comprises:
a first portion overlapping a portion of an upper surface of one of the first and second wirings to form a fixed end; and
a second portion protruding from the first portion toward another wiring and forming a free end that does not overlap with either of the first and second wirings, and
wherein:
a gap providing a bendable space for the free end is formed between a lower surface of the free end and an upper surface of the substrate,
the second portion of the first bump has a first inclined portion that is inclined upward to increase the gap toward the second wiring, and
the second portion of the second bump has a second inclined portion that is inclined upward to increase the gap toward the first wiring.