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Liquid crystal composition, liquid crystal display element, and liquid crystal display

A technology of liquid crystal composition and compound, applied in the direction of liquid crystal materials, instruments, chemical instruments and methods, etc., to achieve the effects of suitable pretilt angle, high charge retention rate, high polymerization rate and conversion rate

Pending Publication Date: 2021-07-16
SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The application of liquid crystal compounds in PSA mode displays after mixing with RM still has some disadvantages

Method used

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  • Liquid crystal composition, liquid crystal display element, and liquid crystal display
  • Liquid crystal composition, liquid crystal display element, and liquid crystal display
  • Liquid crystal composition, liquid crystal display element, and liquid crystal display

Examples

Experimental program
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Effect test

preparation example Construction

[0085] The preparation method of the liquid crystal display of the present invention, and those skilled in the art can prepare a suitable method according to common sense in the art. An example of a method of preparing a liquid crystal display of the present invention, for example, a method of preparation of the following steps:

[0086] The coordinate material is uniformly applied to the surface of the first substrate and the second substrate, and the alignment material can be used to heat curing, and the heating temperature is 210 to 250 ° C, form an alignment layer;

[0087] The spacer spacer is distributed in the second substrate surface, and the box gel is coated along the edge of the first substrate, and solidified at 100 ° C to 150 ° C;

[0088] The first substrate and the second substrate are disposed relatively, and the structure having a sandwich space is formed in combination;

[0089] The liquid crystal composition is injected into the interlayer space between the firs...

Embodiment

[0092] The present invention will be described in connection with the preferred embodiments in connection with the preferred embodiments. Warr arts in the art will appreciate that the described herein is illustrative and not limiting, and the scope of the invention should not be limited.

[0093]In the present invention, the preparation method is a conventional method, and the raw materials used may be obtained from the disclosed business pathway, and the percentage of the material is referred to as the mass percentage, the temperature is also known as the degree of degrees Celsius (° C). For the liquid crystal monomer, the specific significance and test conditions of other symbols are as follows:

[0094] CP represents a liquid crystal clear point (° C), DSC quantitative method test;

[0095] Δn represents optical anisotropy, n o Refractive index for ordinary light, N e In the refractive index of non-ordinary light, the test conditions are 25 ± 2 ° C, 589 nm, and Abeth Reflector ...

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PUM

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Abstract

The invention provides a liquid crystal composition, which comprises one or more polymerizable compounds as shown in a formula I and one or more compounds as shown in a formula II, and a liquid crystal display element or a liquid crystal display device containing the liquid crystal composition. The liquid crystal composition has high polymerization rate and conversion rate and good low-temperature reliability, can meet the requirements of LCD manufacturers for productivity and avoid generation of residual images to a certain extent, and meanwhile, when the liquid crystal composition is applied to display modes such as PSA (polymer-supported alignment) and PS (polymer-stabilized), and the liquid crystal composition has the advantages of low rotary viscosity, proper pretilt angle, high charge retention rate (VHR) and the like.

Description

Technical field [0001] The present invention relates to the field of liquid crystal display, and more particularly to a liquid crystal composition, and a display element or a liquid crystal display comprising the liquid crystal composition. Background technique [0002] As the leader of the flat panel display, TFT-LCD (Thin Film Transistor Liquid Crystaldisplay, "Thin Film Transistor LCD Display) has gradually occupied dominant position in the field of display. TFT-LCD is mostly used in high-end areas of visual angles and comparisons, such as aerospace, medical, graphic image processing, and more. However, when it is observed in the normal direction of the display, the contrast of the display screen is significantly decreased, and the grayscale reversal will occur at a large angle of view, which may seriously affect the application area of ​​TFT-LCD. Therefore, since the birth of the active matrix LCD, high-comparison and wide viewing technology have always been an important rese...

Claims

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Application Information

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IPC IPC(8): C09K19/46G02F1/1333
CPCC09K19/46G02F1/1333C09K2019/0448
Inventor 李元元梁瑞祥温刚徐凯李正强高红茹邢文晓
Owner SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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