Liquid crystal composition and liquid crystal display device

A technology of liquid crystal display device and liquid crystal composition, which is applied in the directions of liquid crystal materials, instruments, chemical instruments and methods, etc., can solve the problem that the reflective area and the penetrating area cannot be matched, the gray scale is uncoordinated, the reflectivity and transmittance of the liquid crystal display. Reduce and other problems, to achieve good picture display effect, high penetration rate, high contrast effect

Inactive Publication Date: 2018-07-06
CHUNGHWA PICTURE TUBES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, current reflective liquid crystal displays and transflective liquid crystal displays must be equipped with polarizers and alignment films, so that the polarizers are likely to reduce the reflectivity and transmittance of the liquid crystal displays; and for transflective For liquid crystal displays, the alignment angle is likely to cause a mismatch between the reflective area and the transmissive area, resulting in incongruous gray scales

Method used

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  • Liquid crystal composition and liquid crystal display device
  • Liquid crystal composition and liquid crystal display device
  • Liquid crystal composition and liquid crystal display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0108] According to the proportions and types shown in Table 1, the liquid crystal host, the first monomer, the oligomer, the polymer, and the initiator were mixed to prepare the liquid crystal composition of Example 1.

Embodiment 2

[0110] According to the proportions and types shown in Table 1, the liquid crystal host, the first monomer, the second monomer, the polymer, and the initiator were mixed to prepare the liquid crystal composition of Example 2.

[0111] Table 1

[0112]

[0113] Next, the relationship between the driving voltage and the transmittance was measured for the liquid crystal composition of Example 1-2, and the measurement results were as follows image 3 shown.

[0114] image 3 It is a relationship diagram between driving voltage and transmittance of a test cell (Test Cell) injected with the liquid crystal composition of Example 1 or Example 2. The measurement steps include: providing a test box, which includes two opposite substrates with conductive films; injecting the liquid crystal composition of Example 1 or Example 2 between the two substrates by ODF or vacuum injection process; and then performing Illumination process to irradiate the test box with ultraviolet light, whe...

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PUM

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Abstract

The invention provides a liquid crystal composition and a liquid crystal display device. The liquid crystal composition comprises a liquid crystal main body, a first monomer and an initiator. The first monomer is one selected from a monomer represented by formula 1, a monomer represented by formula 2 and a monomer represented by formula 3; and R1, R2, R3, R4, R5 and R6 are as described in the description. The liquid crystal composition comprises 50-90 wt% of the liquid crystal main body, 2-30 wt% of the first monomer and 0.5-3 wt% of the initiator. The liquid crystal composition can be used toproduce a liquid crystal layer suitable for being used in the liquid crystal display device, and makes the liquid crystal display device still have a display function and a good picture display effect without matching with a polarizing plate and an alignment film.

Description

technical field [0001] The invention relates to a composition and a display device, and in particular to a liquid crystal composition and a liquid crystal display device. Background technique [0002] Liquid crystal displays can generally be divided into three categories: transmissive, reflective, and transflective. Among them, reflective liquid crystal displays that can use front light and external ambient light at the same time and can use backlight and external environment at the same time Light transflective liquid crystal displays are suitable for use in products such as mobile devices or wearable devices, and thus have gradually attracted attention from all sides. However, current reflective liquid crystal displays and transflective liquid crystal displays must be equipped with polarizers and alignment films, so that the polarizers are likely to reduce the reflectivity and transmittance of the liquid crystal displays; and for transflective For liquid crystal displays,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/38G02F1/1333C08F265/04C08F220/18C08F283/10C08F220/30
CPCC08F265/04C08F283/105C09K19/3852G02F1/1333C08F220/18C08F220/301C09K19/54C09K2019/0448G02F2203/02G02F2203/09G02F1/133618C08F222/102C08F220/1809C08F222/1063C08F222/02
Inventor 郑昕宜陈建华连詹田
Owner CHUNGHWA PICTURE TUBES LTD
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