Liquid crystal composition

A technology for liquid crystal compositions and compounds, applied in liquid crystal materials, chemical instruments and methods, etc., can solve the problems of low display contrast, weak electric field strength, and poor liquid crystal anchoring ability.

Inactive Publication Date: 2018-01-09
SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, many displays require higher resolution to meet people's requirements for high resolution. Based on this, panel manufacturers continue to improve their electrode design in order to increase the aperture ratio, but doing so will result in weak electric field strength and low display contrast. , the liquid crystal anchoring ability is poor, and the risk of afterimage is increased. In order to reduce the frequency of panel manufacturers to improve the electrode, and to meet the demand for high penetration rate, the present in

Method used

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  • Liquid crystal composition
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0117] Table 1 The liquid crystal composition formulation of Example 1 and its test performance parameters

[0118]

Embodiment 2

[0120] The liquid crystal composition of the present invention is prepared by each compound listed in Table 2 and the weight percentage, and it is filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:

[0121] The formula of liquid crystal composition of table 2 embodiment 2 and test performance parameter thereof

[0122]

Embodiment 3

[0124]The liquid crystal composition of the present invention is prepared by each compound listed in Table 3 and the weight percentage, and it is filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:

[0125] The formula of liquid crystal composition of table 3 embodiment 3 and test performance parameter thereof

[0126]

[0127]

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PUM

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Abstract

The invention discloses a liquid crystal composition. The liquid crystal composition contains one or more compounds represented by a formula I, one or more compounds represented by a formula II, and one or more compounds represented by a formula III. The formulas I, II and III are shown in the description. The composition has positive dielectric properties, through a specific monomer combination,transmittance is improved, a contrast ratio is improved, response time is accelerated, and meanwhile a whole reliability level is improved.

Description

technical field [0001] The invention relates to the field of liquid crystal materials, in particular to a 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) Chemical and physical properties are stable. [0004] (2) Low viscosity. [0005] (3) Have a suitable Δε. [0006] (4) Appropriate demolition rate Δn. [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 advantages are m...

Claims

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Application Information

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IPC IPC(8): C09K19/44
Inventor 徐凯乔云霞员国良李锐刘露露刘欢王跃华
Owner SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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