Patent ID: 11932660
Assignee: UNIVERSAL DISPLAY CORPORATION
Field: Organic fine chemistry (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 16:
17. An organic light emitting device (OLED) comprising:
an anode;
a cathode; and
an organic layer disposed between the anode and the cathode,, wherein the organic layer comprises a metal complex of, , wherein:
each X1-X10 is independently C or N;
the maximum number of the N atoms that can connect to each other within a ring is two;
K1, K2, and K3 are each independently a direct bond, O, or S, with at least two of K1, K2, and K3 being direct bonds;
Y is selected from the group consisting of B, CR, N, SR, SiR, GeR, P, P═O, and PRR′;
ring C and ring D are each independently a 5-membered or 6-membered carbocyclic or heterocyclic ring;
RA, Rb, RC, and RD each independently represent zero, mono, or up to the maximum allowed number of substitutions to its associated ring;
L is a direct bond or a linker, comprising one backbone atom, selected from the group consisting, L1 and L2 are each independently absent, a direct bond, or a linking group, comprising one backbone atom, selected from the group consisting of, R, R′, R″, RA, RB, RC, and RD are each independently a hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, boryl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
any two adjacent R, R′, R″, RA, RB, RC, or RD can be joined or fused together to form a ring; and
M is Pt or Pd,, with the proviso that at least one of L, L1, and L2 is a direct bond or both of L1 and L2 are present; and that Formula I does not include,