Compound and organic light emitting device comprising same

Patent metadata

Field	Value
Publication number	US-2025318427-A1
Application number	US-202519091990-A
Country	US
Kind code	A1
Filing date	Mar 27, 2025
Priority date	Apr 4, 2024
Publication date	Oct 9, 2025
Grant date	—

Abstract

Disclosed are a compound represented by Chemical Formula 1-1 or 1-2 and an organic light emitting device including the same. When used in an organic light emitting device, the compound described in the present specification can lower the driving voltage of the device, improve the light emitting efficiency, and improve the service life characteristics of the device.

First claim

What is claimed is:

1 . A compound represented by the following Chemical Formula 1-1 or Chemical Formula 1-2:

wherein, in Chemical Formulae 1-1 and 1-2,
any one of A1 and A2 is -(L1)m-(R1)a, and the other one of A1 and A2 is -(L2)n-(R2)b,
L1 and L2 are the same as or different from each other, and are each independently a direct bond; a substituted or unsubstituted C6 to C60 arylene group; or a substituted or unsubstituted C2 to C60 heteroarylene group,
any one of R1 and R2 is the following Chemical Formula N, and the other one of R1 and R2 is a substituted or unsubstituted C6 to C60 aryl group; or a substituted or unsubstituted C2 to C60 heteroaryl group,
R3 to R5 are the same as or different from each other, and are each independently hydrogen; or deuterium,
each of a and b is an integer from 1 to 4,
c is an integer from 0 to 2,
each of d and e is an integer from 0 to 4,
each of m and n is an integer from 0 to 4, and
when each of a, b, c, d, e, m, and n is 2 or an integer higher than 2, substituents in the parenthesis are the same as or different from each other,

in Chemical Formula N,

is a position linked to L1 or L2,
L3 and L4 are the same as or different from each other, and are each independently a direct bond; a substituted or unsubstituted C6 to C60 arylene group; or a substituted or unsubstituted C2 to C60 heteroarylene group,
Ar1 and Ar2 are the same as or different from each other, and are each independently a substituted or unsubstituted C6 to C60 aryl group; or a substituted or unsubstituted C2 to C60 heteroaryl group,
each of o and p is an integer from 0 to 4,
each of q and r is an integer from 1 to 4,
when each of o, p, q, and r is an integer of 2 or higher, substituents in the parenthesis are the same as or different from each other, and
the “substituted or unsubstituted” means being unsubstituted or substituted with one or more substituents selected from the group consisting of deuterium; an alkyl group; and an aryl group.

2 . The compound of claim 1 , wherein L1 and L2 are the same as or different from each other, and are each independently a direct bond; a substituted or unsubstituted C6 to C30 arylene group; or a substituted or unsubstituted C2 to C30 heteroarylene group.

3 . The compound of claim 1 , wherein any one of R1 and R2 is Chemical Formula N above, and the other one of R1 and R2 is a substituted or unsubstituted C6 to C30 aryl group; or a substituted or unsubstituted C2 to C30 heteroaryl group.

4 . The compound of claim 1 , wherein Ar1 and Ar2 are the same as or different from each other, and are each independently a substituted or unsubstituted C6 to C30 aryl group; or a substituted or unsubstituted C2 to C30 heteroaryl group.

5 . The compound of claim 1 , wherein the “substituted or unsubstituted” means being unsubstituted or substituted with one or more substituents selected from the group consisting of deuterium; a C1 to C30 alkyl group; and a C6 to C30 aryl group.

6 . The compound of claim 1 , wherein a deuterium content of the compound represented by Chemical Formula 1-1 or Chemical Formula 1-2 is 0%, or 1% to 100%.

7 . The compound of claim 1 , wherein Chemical Formula 1-1 or Chemical Formula 1-2 is represented by any one of the following compounds:

Assignees

• Lt Materials Co Ltd

Inventors

• Jung Hae-Won
• Lee Nam-Jin
• Jeong Won-Jang
• Kim Dong-Jun
• Choi Dae-Hyuk

Classifications

• C07C2603/42

  containing only six-membered rings · CPC title

• C07C2603/18

  Fluorenes; Hydrogenated fluorenes · CPC title

• H10K85/636

  comprising heteroaromatic hydrocarbons as substituents on the nitrogen atom · CPC title

• H10K85/633 Primary

  comprising polycyclic condensed aromatic hydrocarbons as substituents on the nitrogen atom · CPC title

• H10K85/615

  Polycyclic condensed aromatic hydrocarbons, e.g. anthracene · CPC title