Patent ID: 11968892
Assignee: LG CHEM, LTD.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 9:
10. An organic light emitting device, comprising:
an anode;
a cathode;
a light emitting layer provided between the anode and the cathode; and
an electron injection layer, an electron transfer layer, an electron injection and transfer layer, or an electron control layer provided between the cathode and the light emitting layer, wherein the light emitting layer comprises a compound of the following Chemical Formula 1; and
the electron injection layer, the electron transfer layer, the electron injection and transfer layer, or the electron control layer provided between the cathode and the light emitting layer comprises a compound of the following Chemical Formula 2:, wherein in Chemical Formula 1:
L3 is a direct bond or a substituted or unsubstituted arylene group, or bonds to R1 to form a substituted or unsubstituted ring;
L4 is a direct bond or a substituted or unsubstituted arylene group;
Ar1 and Ar2 are the same as or different from each other, and each independently is hydrogen, deuterium, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group;
R1 is hydrogen, deuterium, a substituted or unsubstituted alkyl group, —OR, —SiRaRbRc, —OSiRaRbRc, a substituted or unsubstituted aryl group, or —NRmRn, or bonds to L3 to form a substituted or unsubstituted ring;
R2 to R8 are the same as or different from each other, and each independently is hydrogen, deuterium, a substituted or unsubstituted alkyl group, —OR, —SiRaRbRc, —OSiRaRbRc, a substituted or unsubstituted aryl group, or —NRmRn;
R, Ra, Rb, Rc, Rm and Rn are the same as or different from each other, and each independently is hydrogen, deuterium, an alkyl group, or an aryl group; and
the compound of Chemical Formula 1 comprises at least one deuterium;, HAr is a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted imidazolyl group, a substituted or unsubstituted benzimidazolyl group, a substituted or unsubstituted phenanthrolinyl group, a substituted or unsubstituted benzo[4,5]imidazo[1,2-c]quinazolinyl group, a substituted or unsubstituted benzo[4,5]imidazo[1,2-f]-phenanthridinyl group, or a substituted or unsubstituted spiro[fluorene-9,8′-indolo[3,2,1-di]acridinyl] group;
L is a direct bond, —O—, a substituted or unsubstituted divalent to tetravalent aryl group, or a substituted or unsubstituted divalent to tetravalent heteroaryl group;
L1 and L2 are the same as or different from each other, and each independently is a direct bond, a substituted or unsubstituted arylene group, or a substituted or unsubstituted heteroarylene group;
a1 is an integer of 0 to 3, and when a1 is 2 or greater, the L1s are the same as or different from each other;
b1 is an integer of 0 to 3, and when b1 is 2 or greater, the L2s are the same as or different from each other;
a is 1 or 2;
b is 1 or 2, and when b is 2, the HArs are the same as or different from each other;
a2 is 1 or 2, and b2 is 1 or 2;
when a2 is 2, the -[(L1)a1-(CN)a]s are the same as or different from each other; and
when b2 is 2, the -[(L2)b1-(HAr)b]s are the same as or different from each other.