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Polymerisable monomer applied to display panel and liquid crystal material

A technology for polymerizing monomers and display panels, which is applied in liquid crystal materials, instruments, organic chemistry, etc., and can solve the problems that the orientation ability of polymer film liquid crystal molecules still needs to be improved.

Inactive Publication Date: 2010-03-17
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the PSA technology can conveniently form a polymer film for alignment, the alignment ability of the polymer film for liquid crystal molecules still needs to be improved.

Method used

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  • Polymerisable monomer applied to display panel and liquid crystal material
  • Polymerisable monomer applied to display panel and liquid crystal material
  • Polymerisable monomer applied to display panel and liquid crystal material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Each substituent in the chemical formula of the above-mentioned polymerizable monomer is replaced as follows: m=0, "Z" is a carboxyl group, "X 1 ","X 2 "," Sp 1 " and " Sp 2 "respectively a single key, "P 1 " and "P 2 "Respectively a group IV, that is, compound A. "Y" in the group IV (that is, "R" on the figure) is a hydrogen atom, a methyl group, a fluorine atom, a trifluoromethyl group and a phenyl group.

[0044]

[0045] From the structural point of view, the dihedral angle of the central hard core structure of compound A is very small, and its ultraviolet light absorption wavelength is substantially less than 300nm. On the other hand, the synthetic method of the polymerizable monomer of the present embodiment is represented as follows with chemical reaction formula:

[0046]

[0047] After about 4 mmol of hydroquinone, about 1 mmol of 4-hydroxybenzoic acid (4-hydroxybenzoic acid), about 0.1 mmol of dimethylaminopyridine (DMAP) and 50 ml of dehydrated Put ...

Embodiment 2

[0050] Each substituent in the chemical formula of the above-mentioned polymerizable monomer is replaced as follows: m=1, "Z" is a carboxyl group, "X 1 ","X 2 "," Sp 1 " and " Sp 2 "respectively a single key, "P 1 " and "P 2 "Respectively a group IV, that is, compound B. "Y" in the group IV (that is, "R" on the figure) is a hydrogen atom, a methyl group, a fluorine atom, a trifluoromethyl group and a phenyl group.

[0051]

[0052] From the structural point of view, the dihedral angle of the central hard core structure of compound B is very small, and its ultraviolet light absorption wavelength is substantially less than 300nm. On the other hand, the synthetic method of the polymerizable monomer of the present embodiment is represented as follows with chemical reaction formula:

[0053]

[0054] Add about 4 mmol of 4,4'-dihydroxybiphenyl (4,4'-Dihydroxybiphenyl), about 1 mmol of 4-hydroxybenzoic acid and about 0.1 mmol of DMAP and 50 ml of dehydrated tetrahydrofuran...

Embodiment 3

[0057] Each substituent in the chemical formula of the above-mentioned polymerizable monomer is replaced as follows: m=0, "Z", "X 1 ","X 2 "," Sp 1 " and " Sp 2 "respectively a single key, "P 1 " and "P 2 "Respectively a group IV, that is, compound C. "Y" in the group IV (that is, "R" on the figure) is a hydrogen atom, a methyl group, a fluorine atom, a trifluoromethyl group and a phenyl group.

[0058]

[0059] From the structural point of view, the dihedral angle of the central hard core structure of compound C is very small, and its ultraviolet light absorption wavelength is substantially less than 300nm. The synthetic method of the polymerizable monomer of the present embodiment is expressed as follows with chemical reaction formula:

[0060]

[0061] Put about 4.14 mmoles of 4,4'-dihydroxybiphenyl into a 250mL double-necked bottle, pump air with a vacuum deoxygenation and dewatering device, and fill nitrogen three times, then connect nitrogen to the dropping tu...

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Abstract

The invention relates to a polymerisable monomer applied to a display panel. The polymerisable monomer is expressed by a chemical formula above, wherein, m is not less than 0, 'Z' is selected from oxygen atom, sulfur atom, carbonyl, carboxyl, methoxyl, methylthio, sulfenyl, ethylene carbonyl, carboxyethenyl, difluoromethoxyl, difluoromethylthio, ethyleneyl, difluoroethyl, tetrafluoroethyl, ethenyl, difluoroethenyl and ethinyl or single bonds; 'X1' and 'X2' are independently selected from oxygen atom, sulfur atom, methoxyl, carbonyl, carboxyl, amine formacyl, methylthio, ethylene carbonyl and carboxyethenyl or single bond; 'Sp1' and 'Sp2' are independently spacer groups or single bonds; and 'P1' and 'P2' are independently polymerisable groups. The invention further relates to a liquid crystal material which contains liquid crystal molecules and the polymerisable monomer.

Description

technical field [0001] The present invention relates to a polymerizable monomer and a liquid crystal material, and in particular to a polymerizable monomer and a liquid crystal material used in a display panel. Background technique [0002] Liquid Crystal Display Panel (Liquid Crystal Display Panel) has the characteristics of thinness, power saving, and low radiation. It is widely used in commercial and consumer electronics products, and gradually replaces traditional cathode ray tube screens to become a popular optoelectronic product. Currently, liquid crystal display panels are superior to traditional CRT screens in terms of power consumption, overall luminance, and bright room contrast, but are still slightly inferior in response time. [0003] On the other hand, an alignment technology has been developed in recent years: Polymer-Stabilizing Alignment (PSA), which is to mix polymerizable monomers into the liquid crystal layer, and apply an energy source ( For example, by...

Claims

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Application Information

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IPC IPC(8): C07C69/86C07C69/94C07C69/54C07C69/653C07C69/618C09K19/56G02F1/1333G02F1/1337
Inventor 谢忠憬林洋巨林熙干郑德胜
Owner AU OPTRONICS CORP
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