Method for making liquid crystal display element, liquid crystal display element, and polymer composite

A technology for liquid crystal display elements and manufacturing methods, which are applied to the photoengraving process of the pattern surface, the photosensitive materials used for opto-mechanical equipment, optics, etc., can solve the problem of worrying about the display properties, voltage retention properties, and no reactive mesogens are recorded. , UV radiation and other problems, to achieve the effect of excellent display properties, sufficient light transmittance and contrast, and wide viewing angle

Active Publication Date: 2012-07-04
JSR CORPORATIOON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in Non-Patent Document 1, there is no description at all of what kind of reactive mesogen should be used in what amount, and the amount of ultraviolet irradiation required is still large, and the display properties, especially the voltage retention properties, continue to be concerned.

Method used

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  • Method for making liquid crystal display element, liquid crystal display element, and polymer composite
  • Method for making liquid crystal display element, liquid crystal display element, and polymer composite
  • Method for making liquid crystal display element, liquid crystal display element, and polymer composite

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example A-1

[0309] Synthesis Example A-1 (Synthesis Example according to Production Method 1)

[0310] In a reaction vessel equipped with a stirrer, a thermometer, a dropping funnel, and a reflux condenser, 11.3 g of oxalic acid and 24.2 g of ethanol were added and stirred to prepare an ethanol solution of oxalic acid. Next, after heating this solution to 70 degreeC in nitrogen atmosphere, the mixture which consists of 12.3 g of tetraethoxysilanes and 2.2 g of dodecyltriethoxysilanes was added dropwise thereto as a silane compound. After completion of the dropwise addition, the temperature of 70° C. was maintained for 6 hours, and then cooled to 25° C., and then 40.0 g of butyl cellosolve was added to prepare a solution containing polyorganosiloxane (A-1).

[0311] The weight average molecular weight Mw of the polyorganosiloxane (A-1) contained in this solution was 12,000.

Synthetic example A-2

[0312] Synthesis Example A-2 (Synthesis Example according to Production Method 2)

[0313] In the reaction solution with stirrer, thermometer, dropping funnel and reflux condenser, add 45.2g propylene glycol monomethyl ether and 18.8g tetraethoxysilane, 3.3g dodecyl triethoxysilane, will It is stirred to prepare a mixed solution of the silane compound. Next, after heating this solution to 60 degreeC, the oxalic-acid solution which consists of 8.8 g of water and 0.1 g of oxalic acid was dripped there. After completion of the dropwise addition, the solution was heated at a solution temperature of 90° C. for 3 hours, and then cooled to room temperature. Next, 76.2 g of butyl cellosolves were added thereto to prepare a solution containing polyorganosiloxane (A-2).

[0314] The weight average molecular weight Mw of the polyorganosiloxane (A-2) contained in this solution was 11,000.

Synthetic example A-3

[0315] Synthesis Example A-3 (Synthesis Example according to Production Method 4)

[0316] [Hydrolysis and condensation reactions of silane compounds]

[0317] In a reaction vessel with a stirrer, a thermometer, a dropping funnel and a reflux condenser, add 246.4 g of 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane (ECETS) as a silane compound, 1,000 g of methyl isobutyl ketone as a solvent and 10.0 g of triethylamine as a catalyst were mixed at room temperature. Next, after adding 200 g of deionized water dropwise thereto from the dropping funnel over 30 minutes, it was reacted at 80° C. for 6 hours while stirring under reflux. After the reaction was finished, the organic layer was taken out, washed with 0.2% by weight of ammonium nitrate aqueous solution until the water after washing was neutral, and the solvent and water were distilled off under reduced pressure to obtain polyorganosiloxane with epoxy groups. THICK TRANSPARENT LIQUID.

[0318] The polyorganosiloxane 1 In H...

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Abstract

The invention discloses a method for making a liquid crystal display element, a liquid crystal display element, and a polymer composite. The method is characterized by having wide viewing angle, rapid corresponding speed of the liquid crystal molecular, and excellent display quality and long-term reliability. The method comprises the following steps: respectively coating polymer composite of polymerism unsaturated compound containing polysiloxane (A) and represented by crylic acid 2-[4-(2-acrylyl oxygroup)- ethyoxyl-biphenyl-4- oxygroup] (B) to form a film; forming a liquid crystal box by oppositely arranging the film in a manner of clamping liquid crystal molecular layer; and lighting the liquid crystal box in the state of imposing voltage upon the substrate having conductive film.

Description

technical field [0001] The present invention relates to a manufacturing method of a liquid crystal display element, a liquid crystal display element and a polymer composition. More specifically, the present invention relates to a new method for manufacturing a liquid crystal display element having a wide viewing angle and a fast response speed. Background technique [0002] In the liquid crystal display element, as the vertical alignment mode, the so far known MVA (Multi-Domain Vertical Alignment, multi-domain vertical alignment) type panel controls the pouring direction of the liquid crystal molecules by forming protrusions on the liquid crystal panel. , thereby expanding the viewing angle. However, according to this method, it is unavoidable that the protrusions cause insufficient light transmittance and contrast, and further have a problem that the response speed of the liquid crystal molecules is slow. [0003] In recent years, in order to solve the above problems of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1334G02F1/1337G02F1/1333C09D4/02C09D4/06
CPCG02F1/1343G02F1/134309G03F7/004G03F7/0043G03F7/0045G03F7/075
Inventor 吉泽纯司片桐宽石川晓平野哲谏山纯田近光纮
Owner JSR CORPORATIOON
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