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Polymerizable compound, liquid crystal composition using same, and liquid crystal display element

A liquid crystal composition and compound technology, which is applied in the directions of liquid crystal materials, chemical instruments and methods, nonlinear optics, etc., can solve the problem of uneven orientation of the peripheral part of the panel, and achieve the effect of high compatibility and excellent vertical orientation.

Active Publication Date: 2020-05-29
DIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Generally, if the adsorption force to the substrate represented by hydroxyl group is too high, the following problems will arise: since the polymeric compound having a polar group does not Spreads evenly on the substrate, so orientation unevenness occurs at the periphery of the panel

Method used

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  • Polymerizable compound, liquid crystal composition using same, and liquid crystal display element
  • Polymerizable compound, liquid crystal composition using same, and liquid crystal display element
  • Polymerizable compound, liquid crystal composition using same, and liquid crystal display element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0842] (Example 1) Preparation of liquid crystal composition

[0843] When the composition constituted according to the compounds and mixing ratios shown in the following Table 3 was set to 100 parts by mass, 0.3 parts by mass of the following polymerizable compound (R-1-0) was added, heated and melted, and the resulting combination The material was set as LC-1.

[0844] [table 3]

[0845]

[0846] [chem 139]

[0847]

[0848] Furthermore, 0.5 mass parts of compound (P-J-1) corresponding to compound (i) was added with respect to 100 mass parts of LC-1, and it melt|dissolved by heating, and prepared the liquid crystal composition.

[0849] [chem 140]

[0850]

Embodiment 2～24

[0852] In the addition amount shown in Table 4, the following compound was added to LC-1 instead of the compound (P-J-1) in the addition amount of 0.5 parts by mass in Example 1, except that it was performed in the same manner as in Example 1, Prepare liquid crystal composition.

[0853] [chem 141]

[0854]

[0855] [chem 142]

[0856]

[0857] [Table 4]

[0858]

[0859] [table 5]

[0860]

Embodiment 25～54

[0862] Instead of the liquid crystal composition HLC-1 in Example 1, a composition composed of the compounds and mixing ratios shown in Table 6 below was prepared in the same manner as in Example 1, and the prepared liquid crystal composition was HLC-1. 2 to HLC-8.

[0863] [Table 6]

[0864]

[0865] Furthermore, for the base composition which added 0.3 mass parts of polymerizable compounds (R-1-0) when HLC-2 to HLC-8 were respectively made into 100 mass parts, it prepared by heat-melting, and was respectively set as LC-2 to LC-8.

[0866] In addition, the base composition obtained by adding 0.3 parts by mass of the following polymerizable compound (R-1-1) to each of HLC-1 to HLC-8 as 100 parts by mass was prepared by heating and melting. LC-9 to LC-16.

[0867] [chem 143]

[0868]

[0869] In each example, the additive compound shown in Table 7 was added in the amount shown in Table 7 instead of 0.5 parts by mass of (P-J-1) in Example 1, and LC-2 shown in Table 7 w...

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Abstract

The present invention addresses the problem of providing: a liquid crystal composition which has excellent vertical alignment properties and excellent compatibility; and a liquid crystal display element which uses this liquid crystal composition. The present invention also addresses the problem of providing: a liquid crystal composition which has excellent storage stability and contains the spontaneous aligning additive, and which is capable of vertically aligning liquid crystal molecules without requiring a PI layer and without having alignment unevenness; and a liquid crystal display elementwhich uses this liquid crystal composition. The present invention also addresses the problem of providing a liquid crystal display element wherein formed pretilt angles are stable for a long period of time. A liquid crystal composition according to the present invention contains a compound (i) which has a mesogenic group, a polar group Ki1, a polymerizable group, and Ri1. In cases where this liquid crystal composition is used, the liquid crystal composition (liquid crystal layer) is able to be adsorbed to substrates, by which the liquid crystal composition is sandwiched, and is able to be held in a state where the liquid crystal molecules are aligned in the vertical direction. Consequently, a liquid crystal composition which uses a compound according to the present invention is capable ofaligning liquid crystal molecules without having a PI layer.

Description

technical field [0001] The present invention relates to a polymerizable compound, a liquid crystal composition and a liquid crystal display device using the same. Background technique [0002] Conventionally, in a VA type liquid crystal display, a polyimide alignment film (PI) layer is provided on the electrodes in order to induce vertical alignment of liquid crystal molecules when no voltage is applied and to realize horizontal alignment of liquid crystal molecules when a voltage is applied. However, since the formation of the PI layer requires extremely high costs, research has been conducted in recent years on a method for realizing alignment of liquid crystal molecules while omitting the PI layer. [0003] For example, Patent Document 1 discloses a liquid crystal medium characterized in that it is based on a mixture of polar compounds having negative dielectric constant anisotropy and contains at least one spontaneous alignment additive, and describes the liquid crystal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/56C08F20/10C09K19/12C09K19/14C09K19/16C09K19/18C09K19/20C09K19/24C09K19/30C09K19/32C09K19/34C09K19/38C09K19/54G02F1/13
CPCC08F20/10C09K19/12C09K19/14C09K19/16C09K19/18C09K19/20C09K19/24C09K19/30C09K19/32C09K19/34C09K19/38C09K19/54C09K19/56G02F1/13C09K19/06
Inventor 木村正臣须藤豪井之上雄一间宫纯一山本淳子神田僚宫下幸祐
Owner DIC CORP
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