Patent ID: 11937494
Assignee: UNIVERSAL DISPLAY CORPORATION
Field: Basic materials chemistry (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 19:
20. A consumer product comprising 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 compound of Formula I, , wherein:
rings A and B are each independently a 5-membered or 6-membered heterocyclic ring;
rings C and D are each independently a 5-membered or 6-membered carbocyclic or heterocyclic ring;
L is N or CR;
X is O, S, NR, BR, BRR′, CRR′, or SiRR′;
RA, RB, RC, and RD each independently represents zero, mono, or up to a maximum allowed substitutions to its associated ring;
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;
two substituents can be joined or fused to form a ring;
when rings C and D are both benzene, rings A and B are both a 5-membered heterocyclic ring or both a 6-membered heterocyclic ring;
when rings A and B are 5-membered heterocyclic rings, at least one of the following is true:
1) Xis BR, BR′R″, NR, CRR′, or SiRR′; or
2) L is N;

when L is N, rings A and B both are 6-membered heterocyclic rings, and rings C and D are both benzene, then X is NR, BR, BRR′, CRR′, or SiRR′.