Patent ID: 11871651
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 0:
1. An organic electroluminescence device comprising:
a first electrode;
a hole transport region on the first electrode;
an emission layer on the hole transport region;
an electron transport region on the emission layer; and
a second electrode on the electron transport region,
wherein the first electrode and the second electrode each independently comprise at least one selected from Ag, Mg, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF/Ca, LiF/AI, Mo, Ti, In, Sn, and Zn, a compound of two or more thereof, a mixture of two or more thereof, or an oxide thereof, and
wherein the emission layer comprises a polycyclic compound represented by Formula 1:, wherein, in Formula 1,
Ar1 and Ar2 are each independently a substituted or unsubstituted aryl group having 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 ring-forming carbon atoms, and
Ar3 and Ar4 are each independently substituted or unsubstituted aryl group having 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 ring-forming carbon atoms, and/or are bonded to an adjacent group to form a ring,
R1 to R4 are each independently a hydrogen atom, a deuterium atom, a substituted or unsubstituted amine group, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 ring-forming carbon atoms,
a and b are each independently an integer of 0 to 3,
X1 and X2 are each independently a hydrogen atom, a deuterium atom, a cyano group, a carbonyl group, a substituted or unsubstituted amine group, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 ring-forming carbon atoms, and
at least one among X1 and X2 is a cyano group, a carbonyl group, a substituted amine group, a substituted or unsubstituted heteroaryl group including N having 2 to 30 ring-forming carbon atoms, or an aryl group having 6 to 30 ring-forming carbon atoms having a cyano group, a carbonyl group, or an amine group as a substituent, and
wherein the emission layer is to emit delayed fluorescence.