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Liquid crystal display element manufacturing method , polymer composition and liquid crystal display element

A technology for liquid crystal display elements and manufacturing methods, applied in liquid crystal materials, chemical instruments and methods, instruments, etc., which can solve the problems of high ultraviolet irradiation, failure to eliminate display properties, voltage retention properties, etc., and achieve non-destructive display properties and excellent display properties , the effect of wide viewing angle

Active Publication Date: 2014-12-17
JSR CORPORATIOON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 necessary amount of ultraviolet irradiation is still large, and the influence on display properties, especially voltage retention properties has not been eliminated. to worry about

Method used

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  • Liquid crystal display element manufacturing method , polymer composition and liquid crystal display element
  • Liquid crystal display element manufacturing method , polymer composition and liquid crystal display element
  • Liquid crystal display element manufacturing method , polymer composition and liquid crystal display element

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example S-1

[0305] [Hydrolysis and condensation reaction]

[0306] In a reaction vessel with a stirrer, a thermometer, a dropping funnel and a reflux condenser, 73.9 g of 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane (ECETS ) and 24.8g of γ-methacryloxypropyltrimethoxysilane (GMPTS) (ECETS:GMPTS=75:25 (molar ratio)) and 500g of methyl isobutyl ketone as a solvent and as a catalyst 10.0 g triethylamine, mixed at room temperature. Next, after adding 100 g of deionized water dropwise from the dropping funnel over 30 minutes, it was reacted at 80° C. for 6 hours while stirring under reflux. After the reaction, the organic layer was taken out, washed by 0.2% by weight of ammonium nitrate aqueous solution until the washed water was neutral, and the solvent and water were distilled off under reduced pressure to obtain a hydrolysis condensate with epoxy groups, which was viscous transparent liquid.

[0307] The hydrolyzed condensate 1 In H-NMR analysis, a peak due to the epoxy group of theoret...

Synthetic example S-2～S

[0310] Synthesis Examples S-2~S-6, S-10, S-11 and S-16

[0311] [Hydrolytic Condensation Reaction] and [Reaction of Hydrolytic Condensate with Epoxy Group and Carboxylic Acid]

[0312] In the above-mentioned Synthesis Example S-1, the hydrolyzable silane compound and carboxylic acid of the kind and amount described in Table 1 were respectively used, and the hydrolytic condensation reaction and the hydrolytic condensation product and carboxylic acid were carried out in the same manner as Synthesis Example S-1. After the reaction, polyorganosiloxanes (PS-2) to (PS-6), (PS-10), (PS-11) and (PS-16) as (A) the first polymer were obtained respectively. The yields and Mw of these polyorganosiloxanes are combined in Table 1 and shown. In addition, in Synthesis Examples S-3 to S-5 and S-16, two kinds of carboxylic acids were used for each. Synthesis Example S-6 is a comparative synthesis example.

Synthetic example S-7～S-9

[0314] [Hydrolysis and condensation reaction]

[0315] In the above-mentioned Synthesis Example S-1, except that the type and amount of hydrolyzable silane compounds described in Table 1 were used, the hydrolytic condensation reaction was carried out in the same manner as in Synthesis Example S-1, and the first polymers (A) were obtained, respectively. polyorganosiloxane (PS-7) ~ (PS-9). The yields and Mw of these polyorganosiloxanes are combined in Table 1 and shown.

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Abstract

The invention relates to a liquid crystal display element manufacturing method, a polymer composition and a liquid crystal display element. The invention provides a liquid crystal display element manufacturing method, which has a wide-viewing angle, a quick response speed of liquid crystal molecules, a good display property and a good long-term reliability. The method is characterized by comprising the following steps: The conductive films of a pair of substrates are respectively coated with a polymer composition to form coated films. The polymer composition comprises (A) a first polymer and (B) a second polymer. The first polymer is polyorganosiloxane having (methyl) acryl groups. The second polymer is selected from at least one of polyamic acid and polyimide. The coated films of the pair of substrates are placed opposed to each other by a liquid crystal layer to form a liquid crystal cell. When a voltage is applied between the conductive films of the pair of substrates, light irradiates on the liquid crystal cell.

Description

technical field [0001] The present invention relates to a method for producing a liquid crystal display element, a polymer composition and a liquid crystal display element. In more detail, it 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] Among liquid crystal display elements, MVA (Multi-Domain Vertical Alignment) panel, which is known so far as a vertical alignment mode, controls the pouring direction of liquid crystal molecules by forming protrusions in the liquid crystal panel, thereby expanding the viewing angle. However, according to this method, it is unavoidable that the protrusions cause insufficient transmittance and contrast, and further have a problem that the response speed of the liquid crystal molecules is slow. [0003] In recent years, a PSA (Polymer Sustained Alignment) method has been proposed in order to solve the above-mentioned problems of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1333C08L83/07G02F1/1337C08L79/08
CPCC08G73/10C09K19/56G02F1/133719G02F1/133723G02F1/134363
Inventor 吉泽纯司米仓勇秋池利之角谷宪一阿部翼谏山纯
Owner JSR CORPORATIOON
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