Organic compound, polymer prepared by the organic compound, and display panel containing the polymer

Patent metadata

Field	Value
Publication number	US-12197084-B2
Application number	US-202318175554-A
Country	US
Kind code	B2
Filing date	Feb 28, 2023
Priority date	Dec 30, 2022
Publication date	Jan 14, 2025
Grant date	Jan 14, 2025

Abstract

The disclosure provides an organic compound, a polymer prepared by the organic compound, and a display panel containing the polymer. The organic compound is represented by formula (1) or formula (2). X1, X2, X3, and X4 are each independently selected from —CR2 and N, X1 and X2 are not CR2 at the same time, and X3 and X4 are not CR2 at the same time, R1 is independently selected from a single bond, a substituted or unsubstituted C6-C14 aromatic group, and a substituted or unsubstituted C5-C13 heteroaromatic group, and R2 is independently selected from —H or NH2.

First claim

What is claimed is:

1. A polymer, wherein the polymer is obtained by a reaction of a first type of raw material and a second type of raw material;
wherein the first type of raw material comprises an organic compound represented by formula (1) or formula (2):

wherein X 1 , X 2 , X 3 , and X 4 are each independently selected from CR 2 and N, X 1 and X 2 are not CR 2 at the same time, and X 3 and X 4 are not CR 2 at the same time;
R 1 is independently selected from a single bond, a substituted or unsubstituted C 6 -C 14 aromatic group, or a substituted C 5 -C 13 heteroaromatic group; and
R 2 is independently selected from —H or NH 2 ;
wherein the polymer is represented by formula (5):

wherein a ratio of n 2 to m 1 ranges from (2:8) to (5:5);
Y 1 is represented by

 and n 1 is an integer selected from 2, 3, and 4;
A is selected from the following compounds:

Y 2 is represented by formula (6) or formula (7);

wherein in the formula (6) and the formula (7):
X 1 , X 2 , X 3 , and X 4 are each independently selected from CR 2 and N, X 1 and X 2 are not CR 2 at the same time, and X 3 and X 4 are not CR 2 at the same time;
R 1 is independently selected from a single bond, a substituted or unsubstituted C 6 -C 14 aromatic group, or a substituted C 5 -C 13 heteroaromatic group; and
R 2 is independently selected from —H or NH 2 .

2. The polymer of claim 1 , wherein the second type of raw material is a polyacid or a polyacid anhydride.

3. The polymer of claim 1 , wherein the first type of raw material comprises a first monomer and a second monomer, the first monomer is the organic compound, the second monomer is a diamine, and the second monomer is the same as or different from the first monomer; and the second type of raw material comprises a third monomer and a fourth monomer, the third monomer and the fourth monomer are tetracarboxylic dianhydrides, and the fourth monomer is the same as or different from the third monomer.

4. The polymer of claim 3 , wherein the second monomer is represented by

wherein n 1 is an integer selected from 2, 3, and 4.

5. The polymer of claim 3 , wherein the third monomer and the fourth monomer are selected from the following compounds:

6. The polymer of claim 1 , wherein the organic compound is represented by formula (3) or formula (4):

7. The polymer of claim 1 , wherein the organic compound is selected from the following compounds:

8. The polymer of claim 1 , wherein the organic compound is selected from a following compound:

9. A display panel, wherein the display panel comprises a first substrate and a second substrate disposed opposite to each other, and a liquid crystal layer disposed between the first substrate and the second substrate;
the display panel further comprises a first alignment film disposed on a side of the first substrate facing the liquid crystal layer and/or a second alignment film disposed on a side of the second substrate facing the liquid crystal layer;
wherein at least one of the first alignment film and the second alignment film comprises a polymer obtained by a reaction of a first type of raw material and a second type of raw material;
wherein the first type of raw material comprises an organic compound represented by formula (1) or formula (2):

wherein X 1 , X 2 , X 3 , and X 4 are each independently selected from CR 2 and N, X 1 and X 2 are not CR 2 at the same time, and X 3 and X 4 are not CR 2 at the same time;
R 1 is independently selected from a single bond, a substituted or unsubstituted C 6 -C 14 aromatic group, or a substituted C 5 -C 13 heteroaromatic group; and
R 2 is independently selected from —H or NH 2 ;
wherein the polymer is represented by formula (5):

wherein a ratio of n 2 to m 1 ranges from (2:8) to (5:5);
Y 1 is represented by

 and n 1 is an integer selected from 2, 3, and 4;
A is selected from the following compounds:

Y 2 is represented by formula (6) or formula (7):

wherein in the formula (6) and the formula (7);
X 1 , X 2 , X 3 , and X 4 are each independently selected from CR 2 and N, X 1 and X 2 are not CR 2 at the same time, and X 3 and X 4 are not CR 2 at the same time;
R 1 is independently selected from a single bond, a substituted or unsubstituted C 6 -C 14 aromatic group, or a substituted C 5 -C 13 heteroaromatic group; and
R 2 is independently selected from —H or NH 2 .

10. The display panel of claim 9 , wherein the first type of raw material comprises a first monomer and a second monomer, the first monomer is the organic compound, the second monomer is a diamine, and the second monomer is the same as or different from the first monomer; and the second type of raw material comprises a third monomer and a fourth monomer, the third monomer and the fourth monomer are tetracarboxylic dianhydrides, and the fourth monomer is the same as or different from the third monomer.

11. The display panel of claim 10 , wherein the second monomer is represented by

wherein n 1 is an integer selected from 2, 3, and 4.

12. The display panel of claim 10 , wherein the third monomer and the fourth monomer are selected from the following compounds:

13. The polymer of claim 1 , wherein the polymer is selected from the following compounds:

Assignees

• Guangzhou China Star Optoelectronics Semiconductor Display Tech Co Ltd

Inventors

• Lan Song

Classifications

• C08G69/40

  Polyamides containing oxygen in the form of ether groups (C08G69/12, C08G69/32 take precedence) · CPC title

• C07D471/04

  Ortho-condensed systems · CPC title

• C07D213/73

  Unsubstituted amino or imino radicals · CPC title

• C08G73/1085

  Polyimides with diamino moieties or tetracarboxylic segments containing heterocyclic moieties · CPC title

• C08G73/105

  with oxygen only in the diamino moiety · CPC title