US 12,414,460 B2
Organic light emitting diode and organic light emitting device including the same
In Bum Song, Paju-si (KR); Seung Hee Yoon, Paju-si (KR); Jin Ho Park, Paju-si (KR); and Dong Hyeok Lim, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Appl. No. 17/260,178
Filed by LG DISPLAY CO., LTD., Seoul (KR)
PCT Filed Dec. 21, 2019, PCT No. PCT/KR2019/018262
§ 371(c)(1), (2) Date Jan. 13, 2021,
PCT Pub. No. WO2020/138871, PCT Pub. Date Jul. 2, 2020.
Claims priority of application No. 10-2018-0172061 (KR), filed on Dec. 28, 2018.
Prior Publication US 2021/0320265 A1, Oct. 14, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H10K 85/60 (2023.01); H10K 50/13 (2023.01); H10K 50/18 (2023.01)
CPC H10K 85/615 (2023.02) [H10K 50/13 (2023.02); H10K 85/622 (2023.02); H10K 85/624 (2023.02); H10K 85/633 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 50/18 (2023.02); H10K 50/181 (2023.02); H10K 85/658 (2023.02)] 37 Claims
OG exemplary drawing
 
1. An organic light emitting diode (OLED), comprising:
a first electrode;
a second electrode facing the first electrode;
a first emitting material layer including a first host, a second host and a blue dopant and positioned between the first and second electrodes;
a first electron blocking layer including an electron blocking material of an amine derivative and positioned between the first electrode and the first emitting material layer; and
a first hole blocking layer including at least one of a first hole blocking material and a second hole blocking material and positioned between the second electrode and the first emitting material layer,
wherein the first host is a non-deuterated anthracene derivative, and the second host is a deuterated anthracene derivative,
wherein a weight % ratio of the first host to the second host is 3:7 to 9:1,
wherein the first hole blocking material is an azine derivative, and the second hole blocking material is a benzimidazole derivative, and
wherein the second host has only difference of substitution of deuterium atom from the first host.