Compound, display panel and display apparatus

Patent metadata

Field	Value
Publication number	US-11780831-B2
Application number	US-202017035952-A
Country	US
Kind code	B2
Filing date	Sep 29, 2020
Priority date	Jul 31, 2020
Publication date	Oct 10, 2023
Grant date	Oct 10, 2023

Abstract

Provided is a compound represented by formula 1, and a display panel and a display apparatus including the compound. In formula 1, L 1 and L 2 are each independently selected from the group consisting of a single bond, C6-C30 aryl, and C4-C30 heteroaryl; a and b are each independently selected from 0, 1, 2, 3, or 4; D 1 and D 2 are each independently a nitrogen-containing electron donor unit selected from the group consisting of carbazolyl and derivative groups thereof, acridinyl and derivative groups thereof, diarylamino and derivative groups thereof, and triarylamino and derivative groups thereof; and c and d are each independently selected from 0, 1, 2, 3, or 4, and c+d≥1.

First claim

What is claimed is:

1. A compound, having a structure represented by formula 1:

wherein L 1 and L 2 are each independently selected from the group consisting of a single bond, a substituted or unsubstituted C6-C30 aryl, and a C4-C30 heteroaryl; a and b are each independently selected from 0, 1, 2, 3, or 4;
D 1 and D 2 are each independently a nitrogen-containing electron donor unit selected from the group consisting of carbazolyl and derivative groups thereof, acridinyl and derivative groups thereof, diarylamino and derivative groups thereof, and triarylamino and derivative groups thereof; and
c and d are each independently selected from 0, 1, 2, 3, or 4, and c+d≥1.

2. The compound according to claim 1 , wherein the compound has a structure represented by formula 1-1 or formula 1-2:

3. The compound according to claim 1 , wherein L 1 and L 2 are each independently selected from the group consisting of phenyl, biphenyl, naphthyl, anthracyl, phenanthryl, acenaphthylenyl, pyrenyl, perylenyl, fluorenyl, spirodifluorenyl, chrysenyl, benzophenanthryl, and benzanthracyl.

4. The compound according to claim 1 , wherein D 1 and D 2 are each independently selected from the group consisting of:

wherein Z is selected from the group consisting of a carbon atom, a nitrogen atom, an oxygen atom, and a sulfur atom;
q is 0, 1 or 2;
U 1 , U 2 , and U 3 are each independently selected from the group consisting of a hydrogen atom, C1-C6 alkyl, C1-C6 alkoxy, and C6-C12 aryl;
when Z is an oxygen atom or a sulfur atom, q is 0; and
# indicates a bonding position.

5. The compound according to claim 4 , wherein D 1 and D 2 are each independently selected from the group consisting of:

6. The compound according to claim 1 , wherein D 1 and D 2 are each independently selected from the group consisting of:

wherein Z is selected from the group consisting of a carbon atom, a nitrogen atom, an oxygen atom, a sulfur atom, and a silicon atom;
X is selected from the group consisting of a carbon atom, a nitrogen atom, an oxygen atom, a sulfur atom, and a silicon atom;
m, n, p and q are each independently selected from 0, 1 or 2;
U 1 , U 2 , U 3 and U 4 are each independently selected from the group consisting of a hydrogen atom, C1-C6 alkyl, C3-C6 cycloalkyl, C1-C6 alkoxy, C6-C12 aryl, and C12-C20 substituted or unsubstituted diphenylamino;
when Z is an oxygen atom or a sulfur atom, p is 0;
when X is an oxygen atom or a sulfur atom, q is 0; and
# indicates a bonding position.

7. The compound according to claim 6 , wherein D 1 and D 2 are each independently selected from the group consisting of:

wherein R and R′ are each independently selected from the group consisting of a hydrogen atom, C1-C6 alkyl, C1-C6 alkoxy, C1-C6 cycloalkyl, C6-C12 aryl, and C4-C12 heteroaryl.

8. The compound according to claim 1 , wherein D 1 and D 2 are each independently selected from the group consisting of:

wherein U 1 , U 2 and U 3 are each independently selected from the group consisting of a hydrogen atom, C1-C6 alkyl, and C1-C6 alkoxy;
m, n, and p are each independently selected from 0, 1 or 2; and
# indicates a bonding position.

9. The compound according to claim 8 , wherein D 1 and D 2 are each independently selected from the group consisting of:

wherein # indicates a bonding position.

10. The compound according to claim 1 , wherein D 1 and D 2 are each independently selected from the group consisting of:

wherein X is an oxygen atom or a sulfur atom;
m and n are each independently selected from 0, 1 or 2;
U 1 and U 2 are each independently selected from the group consisting of a hydrogen atom, C1-C6 alkyl, C3-C6 cycloalkyl, and C1-C6 alkoxy; and
# indicates a bonding position.

11. The compound according to claim 1 , wherein the compound is selected from the following compounds:

Assignees

• Wuhan Tianma Micro Electronics Co Ltd
• Wuhan Tianma Microelectronics Co Ltd Shanghai Branch
• Shanghai Tianma Am Oled Co Ltd

Inventors

• Gao Wei
• Zhang Lei
• Dai Wenpeng
• Ran Quan
• Zhai Lu
• Xiao Wenjing
• Niu Jinghua

Classifications

• H10K2101/20

  Delayed fluorescence emission · CPC title

• C07D409/14 Primary

  containing three or more hetero rings · CPC title

• C07D495/10 Primary

  Spiro-condensed systems · CPC title

• C07D519/00

  Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups C07D453/00 or C07D455/00 · CPC title

• H10K85/40

  Organosilicon compounds, e.g. TIPS pentacene · CPC title