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US 2023/0056059 A1Published application
Heterocyclic compound and organic light-emitting device comprising same
AssigneeLt Materials Co., Ltd.
InventorsGi-Back LEE, Hyun-Ju LA, Won-Jang JEONG, Dong-Jun KIM
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Abstract
The present application provides a heterocyclic compound capable of significantly enhancing lifetime, efficiency, electrochemical stability and thermal stability of an organic light emitting device, and an organic light emitting device comprising the heterocyclic compound in an organic material layer.
Claims10
A heterocyclic compound represented by the following Chemical Formula 1:
- wherein, in Chemical Formula 1,
- L1 is a direct bond;
- a substituted or unsubstituted arylene group having 6 to 60 carbon atoms;
- or a substituted or unsubstituted heteroarylene group having 2 to 60 carbon atoms;
- X1 to X4 are the same as or different from each other, and each independently a substituted or unsubstituted aryl group having 6 to 20 carbon atoms;
- Ar1 is a substituted or unsubstituted aryl group having 6 to 60 carbon atoms;
- a substituted or unsubstituted heteroaryl group having 2 to 60 carbon atoms comprising N as a heteroatom;
- or a substituted or unsubstituted phosphine oxide group;
- and
- m and n are each independently an integer of 0 to 2, and when m and n are each 2, substituents in the parentheses are the same as or different from each other.
7 more elements
Dependencies are inferred from the claim text.