Organic light-emitting device including a heteroaryl compound

Patent metadata

Field	Value
Publication number	US-10093852-B2
Application number	US-201615559805-A
Country	US
Kind code	B2
Filing date	Mar 29, 2016
Priority date	Apr 24, 2015
Publication date	Oct 9, 2018
Grant date	Oct 9, 2018

Abstract

The present specification relates to an organic light emitting device.

First claim

The invention claimed is:

1. An organic light emitting device comprising:
a first electrode;
a second electrode provided to face the first electrode; and
one or two or more organic material layers provided between the first electrode and the second electrode,
wherein one or more layers of the organic material layers comprise a compound represented by the following Chemical Formula 1:
(HAr) a [L1-Ar1-L2-(CN) b ] c   [Chemical Formula 1]

in Chemical Formula 1,
a to c are each an integer of 1 to 3,
when a to c are each 2 or more, two or more structures in the parenthesis are the same as or different from each other,
L1 and L2 are the same as or different from each other, and are each independently a substituted or unsubstituted divalent to tetravalent aromatic ring group,
Ar1 is a direct bond; or a substituted or unsubstituted arylene group, and
HAr is a heteroaryl group represented by the following Chemical Formula A or B;

in Chemical Formulae A and B,
X1 to X3 are the same as or different from each other, and are each independently N, CH or CD,
at least two of X1 to X3 is N,
Ar2, Ar3, and R1 are the same as or different from each other, and are each independently hydrogen; or a substituted or unsubstituted aryl group, or combine with an adjacent group to form a substituted or unsubstituted ring,
n is an integer of 1 to 7,
when n is 2 or more, two or more R1's are the same as or different from each other, and
--- is a moiety linked to L1,
wherein in Chemical Formula 1, when HAr is Chemical Formula A, and b is 2, Ar1 is not a direct bond, and
when HAr is Chemical Formula B, c is 1.

2. The organic light emitting device of claim 1 , wherein Chemical Formula 1 is represented by the following Chemical Formula 2 or 3:

in Chemical Formulae 2 and 3,
the definitions of a, b, c, L1, L2, and Ar1 are the same as those in Chemical Formula 1,
the definitions of X1 to X3, Ar2, Ar3, R1 and n are the same as those in Chemical Formulae A and B.

3. The organic light emitting device of claim 1 , wherein Chemical Formula 1 is represented by any one of the following Chemical Formulae 2-1 to 2-3:

in Chemical Formulae 2-1 to 2-3,
the definitions of b, c, L1, L2, and Ar1 are the same as those in Chemical Formula 1,
the definitions of X1 to X3, Ar2, and Ar3 are the same as those in Chemical Formula A,
X4 to X9 are the same as or different from each other, and are each independently N, CH or CD,
at least two of X4 to X6 is N,
at least two of X7 to X9 is N, and
Ar4 to Ar7 are the same as or different from each other, and are each independently hydrogen; or a substituted or unsubstituted aryl group, or combine with an adjacent group to form a substituted or unsubstituted ring.

4. The organic light emitting device of claim 1 , wherein Chemical Formula 1 is represented by any one of the following Chemical Formulae 3-1 to 3-3:

in Chemical Formulae 3-1 to 3-3,
the definitions of b, c, L1, L2, and Ar1 are the same as those in Chemical Formula 1,
the definitions of R1 and n are the same as those in Chemical Formula B,
R2 and R3 are the same as or different from each other, and are each independently hydrogen; or a substituted or unsubstituted aryl group, or combine with an adjacent group to form a substituted or unsubstituted ring,
m and p are each an integer of 1 to 7, and
when m and p are each 2 or more, two or more structures in the parenthesis are the same as or different from each other.

5. The organic light emitting device of claim 1 , wherein Chemical Formula A is represented by any one of the following Chemical Formulae A-4 to A-7:

in Chemical Formulae A-4 to A-7,
the definitions of Ar2 and Ar3 are the same as those in Chemical Formula A, and
--- is a moiety linked to L1.

6. The organic light emitting device of claim 1 , wherein Chemical Formula B is represented by any one of the following Chemical Formulae B-1 to B-4:

in Chemical Formulae B-1 to B-4,
the definitions of R1 and n are the same as those in Chemical Formula B, and
--- is a moiety linked to L1.

7. The organic light emitting device of claim 1 , wherein L1 and L2 are the same as or different from each other, and are each independently a substituted or unsubstituted divalent to tetravalent phenyl group; a substituted or unsubstituted divalent to tetravalent biphenyl group; a substituted or unsubstituted divalent to tetravalent terphenyl group; or a substituted or unsubstituted divalent to tetravalent fluorenyl group.

8. The organic light emitting device of claim 1 , wherein Ar1 is a direct bond; a substituted or unsubstituted phenylene group; a substituted or unsubstituted biphenylylene group; or a substituted or unsubstituted naphthylene group.

9. The organic light emitting device of claim 1 , wherein Ar2 and Ar3 are the same as or different from each other, and are each independently a substituted or unsubstituted phenyl group; or a substituted or unsubstituted biphenyl group.

10. The organic light emitting device of claim 1 , wherein Ar2 and Ar3 are the same as or different from each other, and are each independently a phenyl group; or a biphenyl group.

11. The organic light emitting device of claim 1 , wherein Chemical Formula 1 is selected from any one of the following compounds

Assignees

• Lg Chemical Ltd

Inventors

• Huh Jungoh
• Jung Min Woo
• Lee Dong Hoon
• Jang Boonjae
• Kang Minyoung
• Heo Dong Uk
• Han Miyeon

Classifications

• C07D251/12

  having three double bonds between ring members or between ring members and non-ring members · CPC title

• C09K2211/1018

  Heterocyclic compounds · CPC title

• C09K11/06 Primary

  containing organic luminescent materials · CPC title

• C07D487/04

  Ortho-condensed systems · CPC title

• C09K2211/1059

  containing three nitrogen atoms as heteroatoms · CPC title