Organic electroluminescent elements for stable electroluminescent

• US 5,935,721 A
• Filed: 03/20/1998
• Issued: 08/10/1999
• Est. Priority Date: 03/20/1998
• Status: Expired due to Term

• Current Assignee: Global OLED Technology LLC (LG Display Co., Ltd.)
• Original Assignee: Eastman Kodak Company
• Inventors: Shi, Jianmin, Tang, Ching W., Chen, Chin H.
• Primary Examiner(s): THOMAS, ALEXANDER S
• Application Number:
  US09/045,388
• Time in Patent Office: 508 Days
• Field of Search: 428/690, 428/917, 313/504
• US Class Current: 428/690
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• CPC Class Codes: H05B 33/14 characterised by the chemical or physical composition or the arrangement of the electroluminescent material , or by the simultaneous addition of the electroluminescent material in or onto the light source
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 85/626 containing more than one polycyclic condensed aromatic rings, e.g. bis-anthracene
• CPC Class Codes: Y10S 428/917 Electroluminescent

Abstract

An organic EL device comprising an anode, a cathode, and an organic electroluminescent element between the anode and the cathode; the organic electroluminescent element includes an organic material or a mixture thereof of 9,10-di-(2-naphthyl)anthracene derivatives.

Claims

1. An organic EL device comprising an anode, a cathode, and an organic electroluminescent element between the anode and the cathode;

the organic electroluminescent element includes an organic material or a mixture thereof of 9,10-di-(2-naphthyl)anthracene derivatives.

2. The organic EL device of claim 1 wherein the organic material is selected from the group consisting of:

##STR22##

3. An organic EL device comprising an anode, a cathode, and an organic electroluminescent element between the anode and the cathode;

the organic electroluminescent element includes an organic material or a mixture thereof having the structure;

wherein;

R¹, R², R³, and R⁴ are individual substituents or a group of substituents, each substituent is individually selected from hydrogen, or alkyl of from 1 to 24 carbon atoms.

4. An organic EL device comprising an anode, a cathode, and an organic electroluminescent element between the anode and the cathode;

the organic electroluminescent element includes an organic material or a mixture thereof having the structure;

##STR23## wherein;

R¹, R², R³, and R⁴ are individual substituents or a group of substituents, each substituent is individually selected from aryl or substituted aryl of from 5 to 20 carbon atoms.

5. An organic EL device comprising an anode, a cathode, and an organic electroluminescent element between the anode and the cathode;

the organic electroluminescent element includes an organic material or a mixture thereof having the structure;

##STR24## wherein;

R¹, R², R³, and R⁴ are individual substituents or a group of substituents, each substituent is individually selected from carbon atoms necessary to complete a fused aromatic ring of anthracenyl, pyrenyl, or perylenyl.

6. An organic EL device comprising an anode, a cathode, and an organic electroluminescent element between the anode and the cathode;

the organic electroluminescent element includes an organic material or a mixture thereof having the structure;

##STR25## wherein;

R¹, R², R³, and R⁴ are individual substituents or a group of substituents, each substituent is individually selected from heteroaryl or substituted heteroaryl of from 5 to 24 carbon atoms, carbon atoms necessary to complete a fused heteroaromatic ring of furyl, thienyl, pyridyl, quinolinyl and other heterocyclic systems.

7. An organic EL device comprising an anode, a cathode, and an organic electroluminescent element between the anode and the cathode;

the organic electroluminescent element includes an organic material or a mixture thereof having the structure;

##STR26## wherein;

R¹, R², R³, and R⁴ are individual substituents or a group of substituents, each substituent is individually selected from alkoxyl, amino, alkyl amino, or aryl amino of from 1 to 24 carbon atoms.

8. An organic EL device comprising an anode, a cathode, and an organic electroluminescent element between the anode and the cathode;

the organic electroluminescent element includes an organic material or a mixture thereof having the structure;

##STR27## wherein;

R¹, R², R³, and R⁴ are individual substituent or a group of substituents, each substituent is individually selected from fluorine, chlorine, bromine or cyano.

9. An organic EL device comprising an anode, a cathode, and an organic electroluminescent element between the anode and the cathode;

the organic electroluminescent element includes an organic material or a mixture thereof having the structure;

##STR28## wherein;

R¹, R², R³, and R⁴ are individual substituents or a group of substituents, each substituent is individually selected from the following groups consisting of;

Group 1

hydrogen, or alkyl of from 1 to 24 carbon atoms;

Group 2

aryl or substituted aryl of from 5 to 20 carbon atoms;

Group 3

carbon atoms necessary to complete a fused aromatic ring of naphthyl, anthracenyl, pyrenyl, or perylenyl;

Group 4

heteroaryl or substituted heteroaryl of from 5 to 24 carbon atoms, carbon atoms necessary to complete a fused heteroaromatic ring of furyl, thienyl, pyridyl, quinolinyl and other heterocyclic systems;

Group 5

alkoxyl, amino, alkyl amino, or aryl amino of from 1 to 24 carbon atoms; and

Group 6

fluorine, chlorine, bromine or cyano.