Patent number: 11731994
Abstract: An organometallic compound represented by Formula 1: M(L1)n1(L2)n2??Formula 1 wherein, in Formula 1, M is a transition metal, L1 is a ligand represented by Formula 2A, L2 is a ligand represented by Formula 2B, n1 is 1 or 2, wherein, when n1 is 2, two groups L1 are identical to or different from each other, n2 is 1 or 2, wherein, when n2 is 2, two group L2 are identical to or different from each other, the sum of n1 and n2 is 2 or 3, and L1 and L2 are different from each other wherein X1, ring CY1, ring CY2, ring CY14, R1 to R3, R11 to R14, Z1 to Z3, a1, a2, a3, b1, and c1 are the same as described in the description, and * and *? in Formulae 2A and 2B each indicate a binding site to M in Formula 1.
Type:
Grant
Filed:
November 26, 2019
Date of Patent:
August 22, 2023
Assignee:
SAMSUNG ELECTRONICS CO., LTD.
Inventors:
Kyuyoung Hwang, Seungyeon Kwak, Yoonhyun Kwak, Kum Hee Lee, Sunghun Lee, Whail Choi, Aram Jeon, Byoungki Choi, Hyeonho Choi