Organic light-emitting device and flat panel display including the same

Patent metadata

Field	Value
Publication number	US-9276227-B2
Application number	US-201313969237-A
Country	US
Kind code	B2
Filing date	Aug 16, 2013
Priority date	Dec 20, 2012
Publication date	Mar 1, 2016
Grant date	Mar 1, 2016

Abstract

An organic light-emitting device includes: a first electrode; a second electrode; and an organic layer interposed between the first electrode and the second electrode, wherein the organic layer includes a compound of Formula 1 and a compound of Formula 2; and a flat panel display device including the organic light-emitting device. Substituents in Formulae 1 and 2 are the same as described in the specification

First claim

What is claimed is:

1. An organic light-emitting device comprising:
a first electrode;
a second electrode; and
an organic layer interposed between the first electrode and the second electrode,
wherein the organic layer comprises a compound represented by Formula 1 and a compound represented by Formula 2 below:

wherein, in Formula 1, Ar 1 is a substituted or unsubstituted C 3 -C 60 heteroaryl group;
R 1 to R 4 , R 11 to R 18 , and R 21 to R 28 are each independently hydrogen, deuterium, a halogen atom, a cyano group, a substituted or unsubstituted C 1 -C 60 alkyl group, a substituted or unsubstituted C 2 -C 60 alkenyl group, a substituted or unsubstituted C 3 -C 60 cycloalkyl group, a substituted or unsubstituted C 3 -C 60 cycloalkenyl group, a substituted or unsubstituted C 6 -C 60 aryl group, a substituted or unsubstituted C 1 -C 60 trialkylsilyl group, a substituted or unsubstituted C 1 - C 60 dialkylarylsilyl group, a substituted or unsubstituted C 1 -C 60 triarylsilyl group, or a substituted or unsubstituted C 3 -C 60 heteroaryl group;
l and m are each independently an integer from 0 to 2; and
n, o, p, and q are each independently an integer from 0 to 4, and

wherein, in Formula 2, R 51 and R 52 are each independently hydrogen, deuterium, a substituted or unsubstituted C 1 -C 60 alkyl group, or a substituted or unsubstituted C 6 -C 12 aryl group;
R 53 to R 56 are each independently hydrogen, deuterium, a halogen atom, a cyano group, a nitro group, a hydroxyl group, a substituted or unsubstituted C 1 -C 60 alkyl group, a substituted or unsubstituted C 2 -C 60 alkenyl group, a substituted or unsubstituted C 3 -C 60 cycloalkyl group, a substituted or unsubstituted C 1 -C 60 cycloalkenyl group, a substituted or unsubstituted C 1 -C 60 trialkylsilyl group, a substituted or unsubstituted dialkylarylsilyl group, a substituted or unsubstituted C 1 -C 60 triarylsilyl group, a substituted or unsubstituted C 6 -C 60 aryl group, or a substituted or unsubstituted C 3 -C 60 heteroaryl group; and
r, s, t, and u are each independently an integer from 0 to 5.

2. The organic light-emitting device of claim 1 , wherein adjacent substituents of R 21 to R 28 in Formula are selectively linked together to form a ring.

3. The organic light-emitting device of claim 1 , wherein adjacent substituents of R 51 and R 52 in Formula 2 are selectively linked together to form a ring.

4. The organic light-emitting device of claim 1 , wherein adjacent substituents of R 53 to R 56 in Formula 2 are selectively linked together to form a ring.

5. The organic light-emitting device of claim 1 , wherein Ar 1 in Formula 1 is one of the groups represented by Formulae 2a to 2k below:

wherein, in Formulae 2a to 2k, * indicates a binding site.

6. The organic light-emitting device of claim 1 , wherein the compound of Formula 1 is one of Compounds 1 to 46 below:

7. The organic light-emitting device of claim 1 , wherein the compound of Formula 2 is one of Compounds 47 to 114 below:

8. The organic light-emitting device of claim 1 , wherein the organic layer is a blue emission layer.

9. The organic light-emitting device of claim 1 , wherein the organic layer comprises an emission layer, a hole injection layer, a hole transport, layer, or a functional layer having both hole injection and hole transport capabilities, and the emission layer comprises red, green, blue, and white emission layers and one of which comprises a phosphorescent compound.

10. The organic light-emitting device of claim 9 , wherein at least one of the hole injection layer, the hole transport layer, and the functional layer having both hole injection and hole transport capabilities comprises a charge-generating material.

11. The organic light-emitting device of claim 10 , wherein the charge-generating material is a p-type dopant.

12. The organic light-emitting device of claim 11 , wherein the p-type dopant is a quinine derivative.

13. The organic light-emitting device of claim 11 , wherein the p-type dopant is a metal oxide.

14. The organic light-emitting device of 13 , wherein the metal oxide is tungsten oxide or molybdenum oxide.

15. The organic light-emitting device of claim 11 , wherein the p-type dopant is a cyano group-containing compound.

16. The organic light-emitting device of claim 1 , wherein the organic layer further comprises an electron transport, layer, and the electron transport layer comprises an electron transporting organic compound and a metal complex.

17. The organic light-emitting device of claim 16 , wherein the metal complex is lithium quinolate (LiQ).

18. The organic light-emitting device of claim 16 , wherein the metal complex is Compound 203 below:

19. The organic light-emitting device of claim 1 , wherein the organic layer is formed from the compound of Formula 1 and the compound of Formula 2 using a wet process.

20. A flat panel display device comprising the organic light-emitting device of claim 1 , wherein the first electrode of the organic light-emitting device is electrically connected to a source electrode or a drain electrode of a

Assignees

• Samsung Display Co Ltd
• Univ Sungkyunkwan Found

Inventors

• Kim Se-Hun
• Kho Sam-Il
• Kim Mi-Kyung
• Lee Kwan-Hee
• Yoon Seung-Soo

Classifications

• H10K59/10

  OLED displays · CPC title

• H10K50/00

  Organic light-emitting devices (integrated devices or assemblies of multiple devices H10K59/00, H10K65/00; organic semiconductor lasers H01S5/36) · CPC title

• H10K85/626 Primary

  containing more than one polycyclic condensed aromatic rings, e.g. bis-anthracene · CPC title

• H01L51/006

  Electricity · mapped topic

• H01L51/0085

  Electricity · mapped topic