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Liquid crystal composition and liquid crystal display element

A technology of liquid crystal display element and liquid crystal composition, which is applied in the direction of liquid crystal materials, chemical instruments and methods, instruments, etc., and can solve problems such as inability to balance response speed and reliability

Pending Publication Date: 2020-06-26
DIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, none of the liquid crystal compositions can balance the response speed and reliability required for particularly large liquid crystal display elements

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

[0157] The following examples are given to further describe the present invention in detail, but the present invention is not limited to these examples. In addition, "%" in the composition of a following Example and a comparative example means "mass %". The following abbreviations are used for descriptions of compounds in Examples.

[0158]Unless otherwise specified, each physical property value is measured based on the method described in the Electronic Information Technology Industry Association Standard (Electronic Information Technology Industry Association Standard) JEITA ED-2521B revised in March 2009 and issued by the Electronic Information Technology Industry Association.

[0159] (side chain)

[0160]

[0161] (Linker)

[0162]

[0163] (ring structure)

[0164] [chemical 16]

[0165]

[0166] The characteristics measured in the examples are as follows.

[0167] Tni: Nematic-isotropic liquid phase transition temperature (°C)

[0168] Δn: Refractive inde...

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PUM

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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 liquid crystal composition with negative dielectric anisotropy ([delta]epsilon), Tni and [delta]n appropriately adjusted, and a small [gamm]1, and also to provide a VA type, FFS type or IPS type of a liquid crystal display element using the liquid crystal composition; and the liquid crystal display element has fast response speed, high VHR, no display defect or very few display defects, and can be used in a wide temperature range from low temperature to high temperature. The liquid crystal composition of the present invention uses a liquid crystal composition containing a compound of the general formula (i) to solve the above-mentionedproblems.

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] Liquid crystal display devices are used in various home appliances including clocks and calculators, measuring equipment, automotive panels, word processors, electronic notebooks, printers, computers, televisions, etc. Representative examples of liquid crystal display methods include TN (twisted nematic) type, STN (super twisted nematic) type, DS (dynamic light scattering) type, GH (guest-host) type, IPS (in-plane switching) type, and OCB type. (Optically Compensated Birefringence) type, ECB (Voltage Controlled Birefringence) type, VA (Vertical Alignment) type, CSH (Color Super Vertical) type, or FLC (Ferroelectric Liquid Crystal) or the like. Further, examples of the driving method include static driving, multiplex driving, simple matrix method, and active matrix (AM) method driven by TFT (Thin Film Transist...

Claims

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Application Information

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IPC IPC(8): C09K19/44G02F1/1333
CPCC09K19/44G02F1/1333
Inventor 鹈泽惠美幡野直美间宫纯一
Owner DIC CORP
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