US 12,324,294 B2
Light emitting diode display device
Kyu Oh Kwon, Paju-si (KR); Joon Yeong Park, Paju-si (KR); Seung Jun Lee, Paju-si (KR); and Jung Hun Choi, Paju-si (KR)
Assigned to LG Display Co., Ltd, Seoul (KR)
Appl. No. 17/787,177
Filed by LG DISPLAY CO., LTD., Seoul (KR)
PCT Filed Nov. 26, 2020, PCT No. PCT/KR2020/016889
§ 371(c)(1), (2) Date Jun. 17, 2022,
PCT Pub. No. WO2021/125606, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 10-2019-0171544 (KR), filed on Dec. 20, 2019.
Prior Publication US 2023/0023304 A1, Jan. 26, 2023
Int. Cl. H10H 29/32 (2025.01); H01L 25/075 (2006.01); H10H 20/814 (2025.01); H10H 20/831 (2025.01); H10H 20/857 (2025.01); H10H 29/30 (2025.01); H10H 29/34 (2025.01); H10H 29/49 (2025.01); H10H 29/80 (2025.01)
CPC H10H 29/32 (2025.01) [H01L 25/0753 (2013.01); H10H 20/814 (2025.01); H10H 20/8312 (2025.01); H10H 20/857 (2025.01); H10H 29/34 (2025.01); H10H 29/352 (2025.01); H10H 29/49 (2025.01); H10H 29/8421 (2025.01)] 16 Claims
OG exemplary drawing
 
1. An LED display device, comprising:
a substrate;
a second pixel driving circuit on the substrate;
an LED element attached to a region of the substrate not overlapping the second pixel driving circuit, the LED element including a first LED element, a second LED element and a growth substrate;
an element fixing layer surrounding the LED element;
a first pixel driving circuit on the element fixing layer; and
an element protecting layer on the first pixel driving circuit,
wherein the first LED element is configured to be controlled by the first pixel driving circuit, and the second LED element is configured to be controlled by the second pixel driving circuit.