IP Library Granted Patent US 10,586,927
Granted Patent B2
US 10,586,927 · App. 14/857,706 · Granted Mar 10, 2020

Organic electroluminescent material and organic electroluminescent device including the same

Inventor: Hiroaki Itoi (Yokohama, JP)
Assignee: Samsung Display Co., Ltd.
H01L51/0061C07C211/60C07D307/91C07D333/76C07F7/0816H01L51/006H01L51/0067C07C2603/18H01L51/0058H01L51/0072H01L51/0073H01L51/0074H01L51/0081H01L51/0094H01L51/5056H01L2251/308
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Quick Facts
Patent No.
US 10,586,927
App. No.
14/857,706
Granted
Mar 10, 2020
Kind
B2
Abstract

A material for an organic electroluminescent device is represented by the following General Formula (1). The organic electroluminescent device may be driven at a low voltage and may have high emission efficiency and long life.

Claims (25)

1. An organic electroluminescent (EL) device, comprising:

an anode;

a cathode;

an emission layer between the anode and the cathode; and

a plurality of layers between the emission layer and the anode, at least one layer selected from the plurality of layers comprising a material for an organic EL device,

wherein the plurality of layers comprises a hole injection layer and one hole transport layer, and

wherein the material is represented by General Formula (1):

wherein in General Formula (1),

X is selected from CR 12 R 13 and SiR 14 R 15 ,

R 1 to R 16 are each independently selected from a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, a substituted or unsubstituted heteroaryl group having 1 to 30 carbon atoms for forming a ring, an alkyl group having 1 to 15 carbon atoms, a silyl group, a halogen atom, a hydrogen atom and a deuterium atom,

L is selected from a direct linkage, a substituted or unsubstituted arylene group having 6 to 30 carbon atoms for forming a ring, a substituted or unsubstituted heteroarylene group having 1 to 30 carbon atoms for forming a ring and a divalent silyl group, and

Ar is selected from an unsubstituted aryl group having 6 to 14 carbon atoms for forming a ring or an aryl group having 6 to 14 carbon atoms for forming a ring substituted with an aryl group having 6 to 14 carbon atoms for forming a ring.

2. The organic EL device of claim 1 , wherein in General Formula (1), R 2 is a phenyl group, and the material is represented by General Formula (2):

3. The organic EL device of claim 1 , wherein in General Formula (1), R 1 and R 3 are each independently selected from a hydrogen atom and a deuterium atom, R 2 is a phenyl group, and R 5 forms a direct linkage with N, and the material is represented by General Formula (3):

4. The organic EL device of claim 1 , wherein a plurality of adjacent groups selected from R 1 to R 16 are coupled to each other to form a saturated or unsaturated ring.

5. The organic EL device of claim 1 , wherein in General Formula (1), when X is selected from CR 12 R 13 and SiR 14 R 15 , R 5 is coupled at position 2 as shown in General Formula (5):

wherein in General Formula (5), H represents one or more substituents of X.

6. The organic EL device of claim 1 , wherein the material for an organic EL device comprises at least one selected from Compounds 13 to 18 and 21 to 24:

7. The organic EL device of claim 1 , wherein the emission layer comprises an anthracene derivative or a pyrene derivative.

8. The organic EL device of claim 1 , wherein the emission layer comprises a compound represented by General Formula (6):

wherein in General Formula (6), R 21 to R 30 are each independently selected from a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, a substituted or unsubstituted heteroaryl group having 1 to 30 carbon atoms for forming a ring, an alkyl group having 1 to 15 carbon atoms, a silyl group, a halogen atom, a hydrogen atom and a deuterium atom,

“a” and “b” are each independently an integer from 0 to 5, and

a plurality of adjacent groups selected from R 21 to R 30 are coupled to each other to form a saturated or unsaturated ring.

9. The organic EL device of claim 1 , wherein the emission layer comprises at least one compound selected from Compounds a-1 to a-12:

10. A material for an organic electroluminescent (EL) device is at least one selected from Compounds 13 to 24:

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 14, 2015
From: ITOI, HIROAKI
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 036795/0400 →
Priority Claims (1)
JP 2014-214447 · Oct 21, 2014 · national
Continuity (1)
Related Publication 20160111653A1 · Apr 21, 2016
Cited By (1)
US 12,721,037