Charge-transporting material, organic electroluminescent element, and light-emitting device, display device and illumination device characterised by using said element

Patent metadata

Field	Value
Publication number	US-10388903-B2
Application number	US-201214351154-A
Country	US
Kind code	B2
Filing date	Nov 14, 2012
Priority date	Nov 15, 2011
Publication date	Aug 20, 2019
Grant date	Aug 20, 2019

Abstract

An organic electroluminescent element having high durability can be provided by using a compound represented by the following general formula (1), wherein: Z 1 to Z 4 each represent a carbon atom or a nitrogen atom; A 1 represents an atomic group which is combined with Z 1 and a nitrogen atom to form a 5- or 6-membered hetero ring; B 1 represents an atomic group which is combined with Z 2 and a carbon atom to form a 5- or 6-membered ring; C 1 represents an atomic group which is combined with Z 3 and a nitrogen atom to form a 5- or 6-membered hetero ring; D 1 represents an atomic group which is combined with Z 4 and a carbon atom to form a 5- or 6-membered ring; n represents 1 or 2; L represents a single bond or a linking group; and G represents a fused ring with 3 or more rings.

First claim

The invention claimed is:

1. A compound represented by the following formula (3):

wherein
n represents 1 or 2;
L represents a single bond or a linking group; and
wherein R 1 to R 15 each independently represent a hydrogen atom, an alkyl group, an aryl group, or a heteroaryl group, and R 1 to R 15 does not include a fused ring with 3 or more rings;
G represents a fused ring with 3 or more rings selected from the group consisting of:

wherein R 51 to R 55 each independently represent an alkyl group or an aryl group, and #represents a binding position with L; R 61 to R 66 each independently represent a hydrogen atom or a substituent, and n 61 to n 66 each independently represent an integer of 0 to 8.

2. The compound according to claim 1 , wherein L of the compound represented by the formula (3) is a single bond or a group selected from the following group L 1 of linking groups:
Group L 1 of Linking Groups

wherein * represents a binding position with a benzene ring of Formula (3) and # represents a binding position with G.

3. An organic electroluminescent element comprising:
a substrate;
a pair of electrodes including an anode and a cathode, disposed on the substrate; and
at least one organic layer including a light emitting layer, disposed between the electrodes,
wherein the at least one organic layer contains a compound represented by the following general formula (3):

wherein R 1 to R 15 each independently represent a hydrogen atom, an alkyl group, an aryl group, or a heteroaryl group, and R 1 to R 15 does not include a fused ring with 3 or more rings; n represents 1 or 2; L represents a single bond or a linking group;
G represents a fused ring with 3 or more rings selected from the group consisting of:

wherein R 51 to R 55 each independently represent an alkyl group or an aryl group, and #represents a binding position with L; R 61 to R 66 each independently represent a hydrogen atom or a substituent, and n 61 to n 66 each independently represent an integer of 0 to 8.

4. The organic electroluminescent element according to claim 3 , wherein L of the compound represented by the general formula (3) is a single bond or a group selected from the following group L 1 of linking groups:
Group L 1 of Linking Groups

wherein * represents a binding position with a benzene ring of Formula (3) and #represents a binding position with G.

5. The organic electroluminescent element according to claim 3 , wherein the compound represented by the general formula (3) is contained in the light emitting layer in the organic layer(s).

6. A light emitting device using the organic electroluminescent element according to claim 3 .

7. A display device using the organic electroluminescent element according to claim 3 .

8. An illumination device using the organic electroluminescent element according to claim 3 .

Assignees

• Udc Ireland Ltd

Inventors

• Yamamoto Yosuke
• Watanabe Kousuke
• Itai Yuichiro

Classifications

• C09K11/06

  containing organic luminescent materials · CPC title

• H05B33/14

  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 title

• C09K2211/185

  of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd · CPC title

• H01L51/0054

  Electricity · mapped topic

• H01L51/0074

  Electricity · mapped topic