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Positive dielectric anisotropic liquid crystal composition

A liquid crystal composition, anisotropic technology, applied in liquid crystal materials, chemical instruments and methods, etc., can solve the problems of low charge retention rate, slow response speed of TFT-LCD, high voltage, etc., and achieve low viscosity and proper optical anisotropy The effect of opposite sex and low voltage

Active Publication Date: 2013-09-11
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] The proportioning and performance parameter of the liquid crystal composition of table 1 embodiment 1

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[0073]

Embodiment 2

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

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[0077]

Embodiment 3

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

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[0081]

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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 invention relates to a liquid crystal composition, in particular to a fast-response positive dielectric anisotropy liquid crystal composition which can be used for manufacturing TFT-LCD. Background technique [0002] Liquid Crystal Display Panel (Liquid Crystal Display Panel) has the characteristics of thinness, power saving and low radiation. It has gradually replaced traditional cathode ray tube display devices and is widely used in commercial and consumer electronics 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 developed rapidly. In less than 10 years, TFT-LCD has rapidly grown into a mainstream display, which is inseparab...

Claims

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Application Information

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Patent Type & Authority Applications(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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