Positive dielectric anisotropic liquid crystal composition

A technology of dielectric anisotropy, liquid crystal composition, applied in liquid crystal materials, chemical instruments and methods, etc., can solve the problems of high voltage, low charge retention, slow response speed of TFT-LCD, etc., achieve low viscosity, low Effect of rotational viscosity, appropriate optical anisotropy

Active Publication Date: 2015-04-08
SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitations of the liquid crystal material itself, TFT-LCD still has many defects such as slow response speed, high voltage, and low charge retention rate.

Method used

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  • Positive dielectric anisotropic liquid crystal composition
  • Positive dielectric anisotropic liquid crystal composition
  • Positive dielectric anisotropic liquid crystal composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Table 1 Proportion and performance parameters of the liquid crystal composition of Example 1

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Embodiment 2

[0075] Table 2 Liquid crystal composition ratio and performance parameters of Example 2

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Embodiment 3

[0079] The liquid crystal composition ratio and performance parameters of Table 3 Example 3

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[0081]

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PUM

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Abstract

The invention discloses a positive dielectric anisotropic liquid crystal composition. The positive dielectric anisotropic liquid crystal composition comprises 1%-40% by weight of compound with a structural formula I, 1%-50% by weight of compound with a structural formula II, 1%-60% by weight of compound with a structural formula III and 1%-80% by weight of compound with a structural formula IV, and an optically active compound accounting for 0-0.5% of the total weight of the liquid crystal composition can be additionally added. The liquid crystal composition has the advantages of suitable positive dielectric anisotropy, lower rotary viscosity, very low total response time, lower voltage and higher resistivity and voltage holding ratio, and further has broad application prospects and application values in liquid crystal display.

Description

technical field [0001] The present invention relates to a liquid crystal composition, in particular to a fast-response positive dielectric anisotropic liquid crystal composition that can be used to manufacture TFT-LCD. Background technique [0002] Liquid Crystal Display Panels have the characteristics of lightness, thinness, power saving and low radiation, and have gradually replaced traditional cathode ray tube display devices and are widely used in commercial and consumer electronic products. Liquid crystal display panels can be classified into passive matrix (PM) and active matrix (AM) according to the driving method. PM is divided into static (static) and multiplex (multiplex), etc. AM is currently mainly based on thin film transistors (TFT). [0003] With the maturity of TFT technology in the early 1990s, color liquid crystal flat panel displays have developed rapidly. In less than 10 years, TFT-LCD has rapidly grown into a mainstream display, which is inseparable fro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K19/44C09K19/46
Inventor 温刚高红茹丰景义夏治国华瑞茂毛联波张翠英郑成武
Owner SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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