	US 12,284,907 B2
	Organic light emitting diode and organic light emitting device having thereof
Seung Hee Yoon, Paju-si (KR); In Bum Song, Paju-si (KR); Gwi Jeong Cho, Paju-si (KR); So Yeon Ahn, Paju-si (KR); and Yoo Yi Son, Paju-si (KR)
Assigned to LG DISPLAY CO., LTD., Seoul (KR)
Appl. No. 17/283,791
Filed by LG DISPLAY CO., LTD., Seoul (KR)
PCT Filed Dec. 21, 2019, PCT No. PCT/KR2019/018267 § 371(c)(1), (2) Date Apr. 8, 2021, PCT Pub. No. WO2020/138876, PCT Pub. Date Jul. 2, 2020.
Claims priority of application No. 10-2018-0172056 (KR), filed on Dec. 28, 2018.
Prior Publication US 2021/0384436 A1, Dec. 9, 2021
Int. Cl. H10K 85/60 (2023.01); H10K 50/12 (2023.01); H10K 50/18 (2023.01)

CPC H10K 85/626 (2023.02) [H10K 85/622 (2023.02); H10K 85/624 (2023.02); H10K 85/633 (2023.02); H10K 85/636 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 50/12 (2023.02); H10K 50/18 (2023.02)]

17 Claims

1. An organic light emitting diode, comprising:

a first electrode;

a second electrode facing the first electrode; and

a first emitting unit including a first emitting material layer disposed between the first and second electrodes and a first electron blocking layer disposed between the first electrode and the first emitting material layer,

wherein the first emitting material layer includes a host having the following structure of Chemical Formula 1 and a dopant having the following structure of Chemical Formula 3, and the first electron blocking layer includes an amine-based compound having the following structure of Chemical Formula 5:

wherein each of R₁and R₂is independently a C₆˜C₃₀aryl group or a C₅˜C₃₀hetero aryl group; each of L₁and L₂is independently a C₆˜C₃₀arylene group; and each of a and b is an integer of 0 (zero) or 1;

wherein each of R₁₁and R₁₂is independently a C₁˜C₂₀alkyl group, a C₆˜C₃₀aryl group, a C₅˜C₃₀hetero aryl group or a C₆˜C₃₀aryl amino group, or two adjacent groups among R₁₁or two adjacent groups among R₁₂form a fused aromatic or hetero aromatic ring; each of c and d is independently an integer of 0 (zero) to 4; R₁₃is a C₁˜C₁₀alkyl group, a C₆˜C₃₀aryl group, a C₅˜C₃₀hetero aryl group or a C₅˜C₃₀aromatic amino group; e is an integer of 0 (zero) to 3; each of X₁and X₂is independently oxygen (O) or NR₁₄, wherein R₁₄is a C₆˜C₃₀aryl group;

wherein L₃is a C₆˜C₃₀arylene group; o is 0 (zero) or 1; and each of R₂₁to R₂₂is independently a C₆˜C₃₀aryl group or a C₅˜C₃₀hetero aryl group,

wherein the amine-based compound having the structure of Chemical Formula 5 is selected from the following compounds: