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Preparing method of orientation layer, orientation layer compound and display panel

An alignment layer and composition technology, applied in the field of liquid crystal display, can solve the problems of poor anchoring effect of liquid crystal molecules and general alignment effect, etc., and achieve good induction effect

Inactive Publication Date: 2014-06-18
BEIJING BOE OPTOELECTRONCIS TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the photo-alignment method has poor anchoring effect on liquid crystal molecules, and the alignment effect is average.

Method used

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  • Preparing method of orientation layer, orientation layer compound and display panel
  • Preparing method of orientation layer, orientation layer compound and display panel
  • Preparing method of orientation layer, orientation layer compound and display panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0100] A vertical alignment agent with a mass fraction of 5%, a discotic liquid crystal with a mass fraction of 20%, dibenzoyl peroxide with a mass fraction of 0.06%, and dichloromethane with a mass fraction of 74.94% are mixed to form a mixed solution. The mixed solution was degassed for 3 hours, and then transferred to the surface of the substrate with a transfer plate to form a pre-alignment layer; after the vertical alignment agent in the mixed solution was modified on the surface of the substrate, it was left to stand in the dark, and then heated in the dark to remove the mixed solution. organic solvents in solution. Then irradiate with ultraviolet light with a wavelength of 365nm, the irradiation time is 30min, and the irradiation intensity is 10mW / cm 2 , so that the pre-alignment layer and the discotic liquid crystal are polymerized under the initiation of the photoinitiator, thereby forming the discotic liquid crystal wall.

[0101] Among them, the chemical formula of...

Embodiment 2

[0103] A vertical alignment agent with a mass fraction of 10%, a discotic liquid crystal with a mass fraction of 20%, lauryl peroxide with a mass fraction of 0.07%, and dichloromethane with a mass fraction of 69.93% are mixed to form a mixed solution. The mixed solution was degassed for 5 hours, and then transferred to the surface of the substrate with a transfer plate to form a pre-alignment layer; after the vertical alignment agent in the mixed solution was modified to the surface of the substrate, it was heated in the dark to remove the mixed solution in organic solvents. Then irradiate with ultraviolet light with a wavelength of 365nm, the irradiation time is 30min, and the irradiation intensity is 30mW / cm 2, so that the pre-alignment layer and the discotic liquid crystal are polymerized under the initiation of the photoinitiator, thereby forming the discotic liquid crystal wall.

[0104] Among them, the chemical formula of the vertical alignment agent is n=4; the chemi...

Embodiment 3

[0106] A vertical alignment agent with a mass fraction of 15%, a discotic liquid crystal with a mass fraction of 25%, azobisisobutyronitrile with a mass fraction of 0.08%, and chloroform with a mass fraction of 59.92% were mixed to form a mixed solution. The mixed solution was degassed for 7 hours, and then transferred to the surface of the substrate with a transfer plate to form a pre-alignment layer; after the vertical alignment agent in the mixed solution was modified to the surface of the substrate, it was heated in the dark to remove the pre-alignment layer. organic solvents in solution. Then irradiate with ultraviolet light with a wavelength of 365nm, the irradiation time is 40min, and the irradiation intensity is 30mW / cm 2 , so that the pre-alignment layer and the discotic liquid crystal are polymerized under the initiation of the photoinitiator, thereby forming the discotic liquid crystal wall.

[0107] Among them, the chemical formula of the vertical alignment agent ...

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Abstract

The invention discloses a preparing method of an orientation layer. According to the method, polymerizable pre-orientation layers arranged at intervals are formed on a base plate and then take polymerization reaction with polymerizable disc-shaped molecules for forming strip-shaped disc-shaped liquid crystal walls distributed at intervals, so the induction effect on the liquid crystal molecules is realized through the disc-shaped liquid crystal walls. The disc-shaped liquid crystal walls are generated through chemical reaction, the whole process is clean and impurity-free, meanwhile, the disc-shaped liquid crystals have the characteristic of disc-shaped structures, the structure per se can induce the liquid crystal molecules to be arranged in the direction of the disc-shaped liquid crystal walls, so the anchoring effect on the liquid crystal molecules is better, and the orientation effect is better. The invention also discloses an orientation layer compound and a display panel, and the orientation layer of the display panel is formed through adopting the preparing method of the orientation layer.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a preparation method of an alignment layer, an alignment layer composition and a display panel. Background technique [0002] Usually, in a liquid crystal display device, a liquid crystal panel is fabricated by combining an array substrate and a color filter substrate, and alignment treatment is performed on the inside of both substrates to induce the alignment of liquid crystal molecules. There are two commonly used liquid crystal alignment methods in the prior art, one is a rubbing alignment method, and the other is a photo alignment method. [0003] Among them, the rubbing alignment method is a method of forming an alignment layer by mechanical rubbing, that is, using materials such as nylon, fiber or cotton wool to rub the alignment film of the substrate in a certain direction, and after rubbing, grooves are formed on the alignment film to form an alignment lay...

Claims

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Application Information

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IPC IPC(8): G02F1/1337C09K19/56
Inventor 郭仁炜解会杰
Owner BEIJING BOE OPTOELECTRONCIS TECH CO LTD
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