A kind of positive dielectric liquid crystal composition

A technology of liquid crystal composition and liquid crystal compound, applied in liquid crystal materials, nonlinear optics, organic chemistry, etc.

Active Publication Date: 2021-03-05
SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far there is no single liquid crystal material used alone in liquid crystal displays that can meet the performance requirements without developing a composition with other performance characteristics

Method used

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  • A kind of positive dielectric liquid crystal composition
  • A kind of positive dielectric liquid crystal composition
  • A kind of positive dielectric liquid crystal composition

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Experimental program
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Embodiment 1

[0164]

Embodiment 2

[0166]

Embodiment 3

[0168]

[0169]

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Abstract

The invention discloses a positive dielectric liquid crystal composition. The liquid crystal composition contains component A composed of one or more liquid crystal compounds represented by general formula I, and contains one or more liquid crystal compounds represented by general formula II Component B composed of compounds, component C composed of one or more liquid crystal compounds represented by general formula III, and additive component D composed of one or more compounds represented by general formula S-1, The present invention does not change itself under the condition of high temperature and ultraviolet radiation, thereby improving the quality of liquid crystals, and is suitable for active matrix electro-optical elements and liquid crystal displays, and can be used as TFT-LCD for civil use and practical under special harsh conditions.

Description

technical field [0001] The invention relates to the field of liquid crystal materials, in particular to a positive dielectric liquid crystal composition. Background technique [0002] Liquid crystal display elements are divided into the following modes according to the display mode: twisted nematic (TN) mode, super twisted nematic (STN) mode, in-plane mode (IPS), and vertical alignment (VA) mode. Regardless of the display mode, the liquid crystal composition needs to have the following characteristics: [0003] (1) Stable chemical and physical properties; [0004] (2) Low viscosity; [0005] (3) have a suitable △ε; [0006] (4) Appropriate demolition rate △n; [0007] (5) Good compatibility with other liquid crystal compounds. [0008] 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 inseparable from its advantages. Its...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D211/46C09K19/44C09K19/46C09K19/52G02F1/137
CPCC09K19/44C09K19/46C09K19/52G02F1/137G02F1/13706C09K19/02C09K19/3028C09K19/3066C09K19/42C09K2019/3004C09K2019/3015C09K2019/3069
Inventor 刘欢景月月刘露露员国良王明霞
Owner SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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