IP Library Granted Patent US 11,665,959
Granted Patent B2
US 11,665,959 · App. 16/731,079 · Granted May 30, 2023

Compound, organic electroluminescent device and display equipment

Inventors: Lei Zhang (Shanghai, CN); Wei Gao (Shanghai, CN); Wenpeng Dai (Shanghai, CN); Jinghua Niu (Shanghai, CN)
Assignees: WUHAN TIANMA MICROELECTRONICS CO., LTD.; WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
H01L51/0071C07D403/14C07D405/14H01L51/0067H01L51/0073H01L51/5096
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Quick Facts
Patent No.
US 11,665,959
App. No.
16/731,079
Granted
May 30, 2023
Kind
B2
Abstract

The present disclosure relates to the field of organic electroluminescence technology, and in particular to a compound, an organic electroluminescent device, and a display equipment. The compound of the present disclosure has the structure shown in Formula (I).

Claims (32)

1. A compound, wherein the compound has a structure shown in Formula (I):

wherein X 1 -X 3 are all C—H groups; r, s, t are selected from 0, 1, wherein at least one of r, s, t is equal to 1, and L 1 -L 3 are each independently selected from any one or more of the following groups:

wherein Z 1 and Z 2 are each independently selected from any one or more of C 1 -C 10 alkyl, C 3 -C 10 cycloalkyl, C 2 -C 10 alkenyl, C 1 -C 6 alkoxyl, halogen, cyano, C 6 -C 30 monocyclic heteroaromatic hydrocarbon or fused ring heteroaromatic hydrocarbon group, and C 3 -C 30 monocyclic heteroaromatic hydrocarbon or fused ring heteroaromatic hydrocarbon group; m and n are each independently selected from 0, 1, or 2;

A is a structure shown in Formula (II), and B is a structure shown in Formula (III); in Formula (II), X 4 and X 5 are each independently selected from a C atom or an N atom, and at least one of them is an N atom; and a to f are each independently selected from 0, or 1, and g is 1;

in formula (III), Y is selected from an N atom, NPh, an O atom, or an S atom, when Y is an N atom, Formula (III) is joined to Formula (I) via the N atom; p and q are each independently selected from 1, 2, or 3;

R 1 -R 9 are each independently selected from C 1 -C 12 alkyl, substituted or unsubstituted C 5 -C 40 aryl, and substituted or unsubstituted C 3 -C 40 heteroaryl; and

#represents a connection location.

2. The compound according to claim 1 , wherein R 1 -R 9 are each independently selected from substituted or unsubstituted phenyl.

3. The compound according to claim 1 , wherein A is the structure shown in Formula (II-1) or Formula (II-2),

wherein R 9 is selected from C 1 -C 12 alkyl, substituted or unsubstituted C 5 -C 40 aryl, substituted or unsubstituted C 3 -C 40 heteroaryl; and g is 1; and

#represents the connection location.

4. The compound according to claim 3 , wherein R 9 is selected from substituted or unsubstituted phenyl.

5. The compound according to claim 1 , wherein L 2 is identical to L 3 , and s is identical to t.

6. The compound according to claim 1 , wherein one of a to f is 1, and others are 0.

7. The compound according to claim 1 , wherein Z 1 and Z 2 are each independently selected from C 6 -C 30 monocyclic heteroaromatic hydrocarbon or fused ring heteroaromatic hydrocarbon group.

8. The compound according to claim 1 , wherein the compound has the structure shown in Formula (I-1),

wherein X 1 -X 3 are all C—H groups; r, s, t are selected from 0, 1, wherein at least one of r, s, t is equal to 1, and L 1 -L 3 are each independently selected from any one or more of the following groups:

wherein Z 1 and Z 2 are each independently selected from any one or more of C 1 -C 10 alkyl, C 3 -C 10 cycloalkyl, C 2 -C 10 alkenyl, C 1 -C 6 alkoxyl, halogen, cyano, C 6 -C 30 monocyclic heteroaromatic hydrocarbon or fused ring heteroaromatic hydrocarbon group, and C 3 -C 30 monocyclic heteroaromatic hydrocarbon or fused ring heteroaromatic hydrocarbon group; m and n are each independently selected from 0, 1, or 2; and Y is selected from an N atom, NPh, an O atom, or an S atom, when Y is an N atom, Formula (III) is joined to Formula (I) via the N atom.

9. The compound according to claim 8 , wherein Z 1 and Z 2 are each independently selected from C 6 -C 30 monocyclic heteroaromatic hydrocarbon or fused ring heteroaromatic hydrocarbon group.

10. The compound according to claim 1 , wherein R 1 -R 9 are each independently selected from substituted or unsubstituted C 5 -C 40 aryl, substituted or unsubstituted C 3 -C 40 heteroaryl; and a substituent is selected from any one or more of C 1 -C 10 alkyl, C 3 -C 10 cycloalkyl, C 2 -C 10 alkenyl, C 1 -C 6 alkoxyl, halogen, cyano, C 6 -C 30 monocyclic aromatic hydrocarbon or fused ring aromatic hydrocarbon group, and C 3 -C 30 monocyclic heteroaromatic hydrocarbon or fused ring heteroaromatic hydrocarbon group.

11. An organic electroluminescent device, comprising a first electrode and a second electrode, and an organic functional layer located between the first electrode and the second electrode, wherein the organic functional layer comprises a hole-blocking layer, and a transport material of the hole-blocking layer comprises the compound according to claim 1 .

12. A display device, wherein the display device includes the organic electroluminescent device according to claim 11 .

13. A compound, wherein the compound has a structure shown in Formula (I):

wherein X 1 -X 3 are all C—H groups; r, s, t are selected from 0, 1, wherein at least one of r, s, t is equal to 1, and L 1 -L 3 are each independently selected from any one or more of the following groups:

wherein Z 1 and Z 2 are each independently selected from any one or more of C 1 -C 10 alkyl, C 3 -C 10 cycloalkyl, C 2 -C 10 alkenyl, C 1 -C 6 alkoxyl, halogen, cyano, C 6 -C 30 monocyclic heteroaromatic hydrocarbon or fused ring heteroaromatic hydrocarbon group, and C 3 -C 30 monocyclic heteroaromatic hydrocarbon or fused ring heteroaromatic hydrocarbon group; m and n are each independently selected from 0, 1, or 2;

A is a structure shown in Formula (II), and B is a structure shown in Formula (III); in Formula (II), X 4 and X 5 are each independently selected from a C atom or an N atom, and at least one of them is an N atom; and a to f are each independently selected from 0, or 1, and g is 1;

in formula (III), Y is selected from an N atom, NPh, an O atom, or an S atom, when Y is an N atom, Formula (III) is joined to Formula (I) via the N atom;

R 1 -R 9 are each independently selected from C 1 -C 12 alkyl, substituted or unsubstituted C 5 -C 40 aryl, and substituted or unsubstituted C 3 -C 40 heteroaryl; and

#represents a connection location;

wherein one of p and q is 1, and one of p and q is 0, or p and q are each selected from 0.

14. The compound according to claim 13 , wherein the compound is selected from any one of

15. A compound, wherein the compound is selected from any one of:

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 4, 2022
From: SHANGHAI TIANMA AM-OLED CO.,LTD.
To: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.; WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
Reel/Frame 059498/0307 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 31, 2019
From: ZHANG, LEI; GAO, WEI; DAI, WENPENG; NIU, JINGHUA
To: SHANGHAI TIANMA AM-OLED CO., LTD.
Reel/Frame 051390/0490 →
Priority Claims (1)
CN 201910936389.3 · Sep 29, 2019 · national
Continuity (1)
Related Publication 20210098710A1 · Apr 1, 2021