Liquid crystal composition and liquid crystal display element

A technology for liquid crystal display elements and liquid crystal compositions, applied in the directions of liquid crystal materials, chemical instruments and methods, can solve the problems of insufficient tilt angle formation, deterioration of response speed, poor display, etc., and achieve fast polymerization speed, high tilt angle stability, The effect of large inclination

Pending Publication Date: 2020-03-10
DIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the formation of the inclination angle becomes insufficient, and the following display defects are confirmed: deterioration of response speed, image sticking due to deterioration of orientation, and residual polymerizable compound slow polymerization during driving to change the inclination angle and cause burn-in (IS)

Method used

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  • Liquid crystal composition and liquid crystal display element
  • Liquid crystal composition and liquid crystal display element
  • Liquid crystal composition and liquid crystal display element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0234] The RMs of Example 1 (E-01) to Example 4 (E-04) were 0 or less than the detection limit, which was a sufficiently small value. In addition, it was confirmed that Tilt was a sufficiently large value, IS was a sufficiently small value, and VHR was a sufficiently high value. From the above, it was confirmed that these Examples solved the subject of the present invention. On the other hand, it was confirmed that IS of Comparative Example 1 (C-01) was very large at 120, RM of Comparative Example 2 (C-02) was as large as 21, and Tilt was a small value. From the above, it was confirmed that these comparative examples cannot solve the subject of the present invention.

[0235] [chem 30]

[0236]

[0237] Prepare to replace the polymeric compound represented by the formula (RM-22O2-MM) contained in Example 1 (E-01) to Example 4 (E-04) with the polymeric compound represented by the formula (RM-22O1-MM) It was confirmed that the subject of the present invention was solved by...

Embodiment 5

[0248] The RMs of Example 5 (E-05) to Example 10 (E-10) were 0 or less than the lower limit of detection, which was a sufficiently small value. In addition, it was confirmed that Tilt has a sufficiently large value, IS has a sufficiently small value, and VHR has a sufficiently high value. From the above, it was confirmed that these Examples solved the subject of the present invention.

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Abstract

The invention provides a liquid crystal composition and a liquid crystal display element. The problem to be solved by the present invention is to provide a polymerizable compound-containing liquid crystal composition capable of achieving fast polymerization speed, large tilt angle formation, high tilt angle stability, and high voltage retention rate (VHR), and a PSA or PSVA type liquid crystal display element using same. The method for solving the problem comprises the following steps: providing a liquid crystal composition containing a combination of a plurality of specific polymerizable compounds and a liquid crystal display element using the liquid crystal composition.

Description

technical field [0001] The present invention relates to a liquid crystal composition and a liquid crystal display element using the same. Background technique [0002] As a liquid crystal display element using a liquid crystal composition having a negative dielectric constant anisotropy Δε, PSA and PSVA-type liquid crystal TVs, liquid crystal displays, etc. have been widely used. As liquid crystal compositions suitable therefor, Patent Document 1, Patent Document 2. Patent Document 3, Patent Document 4, Patent Document 5 and the like disclose various polymerizable compounds and liquid crystal compositions containing them. In addition, Patent Document 6, Patent Document 7, and Patent Document 8 disclose a polymerizable compound of a biphenyl skeleton and a polymerizable compound of a terphenyl skeleton. [0003] However, the properties of liquid crystal compositions containing polymerizable compounds commonly used so far are not sufficient for high-definition liquid crystal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/46C09K19/12C09K19/54
CPCC09K19/46C09K19/126C09K19/54Y02P20/55
Inventor 须藤豪栗泽和树
Owner DIC CORP
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