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Liquid crystal composition and liquid crystal display element using the liquid crystal composition

A technology of liquid crystal display element and liquid crystal composition, which is applied in liquid crystal materials, chemical instruments and methods, optics, etc., can solve the problems of liquid crystal display element refractive index driven electric field balance damage, poor contrast, spots, etc., to achieve high-speed response, Shows poor inhibition, low viscosity effects

Active Publication Date: 2016-07-13
DIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the deviation between the drop amount and the optimum value is large, the pre-designed refractive index of the liquid crystal display element and the balance of the driving electric field will be destroyed, and display defects such as spots and poor contrast will occur.

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0837] The compositions shown below were prepared. Table 1 shows the physical property values ​​of the composition of Example 1.

[0838]

[0839] [Table 1]

[0840] Tni(°C)

Embodiment 2

[0854] The compositions shown below were prepared. Table 4 shows the physical property values ​​of the composition of Example 2.

[0855]

[0856] [Table 4]

[0857] Tni(°C)

Embodiment 3

[0859] The compositions shown below were prepared. Table 5 shows the physical property values ​​of the composition of Example 3.

[0860]

[0861] [table 5]

[0862] Tni(°C)

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PUM

PropertyMeasurementUnit
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Abstract

This liquid crystal composition includes at least one compound represented by general formula (i), and at least one compound represented by general formula (ii), and does not include a compound having chlorine as a substituent.

Description

technical field [0001] The present invention relates to a nematic liquid crystal composition having a positive dielectric constant anisotropy (Δε) useful as a liquid crystal display material, and a liquid crystal display element using the liquid crystal composition. Background technique [0002] Liquid crystal display elements are used in various measurement equipment represented by clocks and calculators, automotive panels, word processors, electronic notebooks, printers, computers, televisions, clocks, advertising display boards, etc. Representative liquid crystal display methods include TN (twisted nematic) type, STN (super twisted nematic) type, vertical alignment type using TFT (thin film transistor), and IPS (in-plane switching) type. Liquid crystal compositions used in these liquid crystal display elements are required to be stable against external stimuli such as moisture, air, heat, and light, to exhibit a liquid crystal phase over as wide a temperature range as pos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K19/12C09K19/14C09K19/16C09K19/18C09K19/20C09K19/24C09K19/30C09K19/34G02F1/13
CPCC09K19/3066C09K19/44C09K2019/0466C09K2019/123C09K2019/3004C09K2019/301C09K2019/3016
Inventor 河村丞治丹羽雅裕根岸真岩下芳典
Owner DIC CORP
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