US 12,336,330 B2
Ultra-thin LED element and inkjet ink and light source including the same
Young Rag Do, Seoul (KR)
Assigned to KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION, Seoul (KR)
Filed by KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION, Seoul (KR)
Filed on Dec. 28, 2021, as Appl. No. 17/563,333.
Claims priority of application No. 10-2020-0189203 (KR), filed on Dec. 31, 2020.
Prior Publication US 2022/0209063 A1, Jun. 30, 2022
Int. Cl. H10H 20/819 (2025.01); H10H 20/816 (2025.01); H10H 20/831 (2025.01)
CPC H10H 20/819 (2025.01) [H10H 20/816 (2025.01); H10H 20/831 (2025.01)] 15 Claims
OG exemplary drawing
 
1. An ultra-thin light-emitting diode (LED) element at least comprising:
a first conductive semiconductor layer;
a photoactive layer;
a second conductive semiconductor layer; and
a selective bonding layer configured to erect and assemble the ultra-thin LED element in a thickness direction thereof at a desired position of a driving electrode on an uppermost layer or a lowermost layer of the ultra-thin LED element, wherein the selective bonding layer is a magnetic layer or a chemical bond inducing layer,
wherein a ratio between a thickness in a stack direction of layers and a length of a major axis in a cross section perpendicular to the stack direction is in a range of 1:0.5 to 1:1.5.