Charge transporting material, organic electroluminescent element, light emitting device, display device and illumination device

Patent metadata

Field	Value
Publication number	US-10283718-B2
Application number	US-201313897760-A
Country	US
Kind code	B2
Filing date	May 20, 2013
Priority date	May 22, 2012
Publication date	May 7, 2019
Grant date	May 7, 2019

Abstract

A charge transporting material comprising a compound represented by any one of the following general formula (1-1) to general formula (1-3):

wherein R 111 to R 114 , R 121 to R 125 and R 131 to R 135 each independently represent a hydrogen atom or a substituent, and may be bound together to form a ring; L 111 to L 113 each independently represent O or S; L 121 to L 123 each independently represent a single bond or a divalent linking group; and Ar 111 to Ar 113 each independently represent an aryl group or a heteroaryl group.

First claim

What is claimed:

1. A charge transporting material comprising a compound represented by any one of the following general formula (1-1) to general formula (1-3):

wherein, in the general formulae (1-1) to (1-3), R 112 , R 113 , R 122 to R 124 , and R 132 to R 134 each independently represent a hydrogen atom or a substituent, and may be bound together to form a ring;
R 111 , R 114 , R 121 , R 125 , R 131 , and R 135 are each hydrogen;
L 111 to L 113 each independently represents O or S;
L 121 to L 123 each independently represent a single bond or an arylene group; and
Ar 111 to Ar 113 each independently represent a substituent represented by one of General Formula (2-1) to General Formula (2-10)

wherein, in the general formula (2-1) to the general formula (2-10), one of R A11 to R A15 represents a binding position to L 121 to L 123 in the general formulae (1-1) to (1-3) and the others of R A11 to R A15 each independently represent a hydrogen atom, an alkyl, an aryl, a cyano, an indolophenoxazine or an indolophenothiazine;
R A21 to R A25 , R A31 to R A35 , R A41 to R A44 and R A51 to R A55 each independently represent a hydrogen atom, an alkyl, an aryl, a cyano, an indolophenoxazine or an indolophenothiazine;
wherein in the compound, none or only one of R A11 to R A15 , R A11 to R A25 , R A31 to R A35 , R A41 to R A44 and R A51 to R A55 represents an indolophenoxazine or an indolophenothiazine, and wherein the indolophenoxazine or an indolophenothiazine is an indolophenoxazin-3-yl, an indolophenoxazin-7-yl, an indolophenoxazin-10-yl, an indolophenothiazin-3-yl, an indolophenothiazin-7-yl, or an indolophenothiazin-10-yl.

2. The charge transporting material according to claim 1 , which comprises a compound represented by the general formula (1-1) or the general formula (1-2).

3. The charge transporting material according to claim 1 , wherein at least one of L 121 to L 123 and Ar 111 to Ar 113 in the general formulae (1-1) to (1-3) contains an m-phenylene group.

4. An organic electroluminescent element comprising a substrate; a pair of electrodes including an anode and a cathode, disposed on the substrate; and an organic layer disposed between the electrodes, wherein the organic layer contains the charge transporting material of claim 1 .

5. The organic electroluminescent element according to claim 4 , wherein the organic layer includes a light emitting layer containing a phosphorescence emitting material.

6. The organic electroluminescent element according to claim 5 , wherein the light emitting layer contains the compound represented by any one of the general formula (1-1) to the general formula (1-3).

7. The organic electroluminescent element according to claim 5 , wherein an Ir complex represented by the following general formula (E-1) is used in the light emitting layer as the phosphorescence emitting material:

wherein, in the general formula (E-1), Z 1 and Z 2 each represent a carbon atom or a nitrogen atom; A 1 represents an atomic group which together with Z 1 and a nitrogen atom forms a 5- or 6-membered hetero ring; B 1 represents an atomic group which together with Z 2 and a carbon atom forms a 5- or 6-membered ring; (X—Y) represents a mono-anionic bidentate ligand; and n E1 represents an integer of 1 to 3.

8. The organic electroluminescent element according to claim 7 , wherein the Ir complex represented by the general formula (E-1) is represented by the following general formula (E-2):

wherein, in the general formula (E-2), A E1 to A E8 each independently represent a nitrogen atom or C—R E ; R E represents a hydrogen atom or a substituent; (X—Y) represents a mono-anionic bidentate ligand; and n E2 represents an integer of 1 to 3.

9. A light emitting device comprising the organic electroluminescent element of claim 4 .

10. A display device comprising the organic electroluminescent element of claim 4 .

11. An illumination device comprising the organic electroluminescent element of claim 4 .

12. The charge transporting material according to claim 1 , wherein in the general formulae (1-1) to (1-3), R 112 , R 113 , R 122 to R 124 , and R 132 to R 134 each independently represent a hydrogen atom, an alkyl, an aryl, a cyano, or may be bound together to form a ring.

13. The charge transporting material according to claim 1 , wherein when one of R A11 to R A15 , R A21 to R A25 , R A31 to R A35 , R A41 to R A44 , and R A51 to R A55 represents an indolophenoxazine or indolophenothiazine, the indolophenoxazine or indolophenothiazine is unsubstituted.

Assignees

• Udc Ireland Ltd

Inventors

• Watanabe Kousuke
• Yamamoto Yosuke
• Sotoyama Wataru

Classifications

• C07D471/06 Primary

  Peri-condensed systems · CPC title

• C07D513/06

  Peri-condensed systems · CPC title

• H01L51/5016

  Electricity · mapped topic

• H01L51/5056

  Electricity · mapped topic

• C07D498/06

  Peri-condensed systems · CPC title