Patent ID: 11939293
Assignee: UNIVERSAL DISPLAY CORPORATION
Field: Organic fine chemistry (Chemistry)
Classification: CPC C  H  Y | IPC C  H

Claim 10:
11. A first compound having the structure:, wherein Ar1 is aryl comprising at least three phenyl rings joined to form a chain;
wherein N is attached to one of the phenyl rings at the end of the chain;
at least one of the following is true:
i) at least two three of the phenyl rings are fused to form a phenanthryl group, wherein said phenanthryl group is directly bonded to the phenyl directly bonded to N; or
ii) the phenyl directly bonded to N and a phenyl directly bonded to the phenyl directly bonded to N are substituted with hydrogen or a phenyl group that can be further substituted with additional phenyl groups,
wherein the phenyl directly bonded to N directly bonds to at least two additional phenyl groups, wherein the at least two additional phenyl groups are bonded to different carbon atoms of the phenyl directly bonded to N,
and/or
a phenyl directly bonded to the phenyl directly bonded to N bonds to at least three phenyl groups, wherein the at least three phenyl groups:
are bonded to different carbon atoms of the phenyl directly bonded to the phenyl directly bonded to N, and
include the phenyl directly bonded to N.