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Liquid crystal display device

A liquid crystal display and device technology, applied in liquid crystal materials, instruments, chemical instruments and methods, etc., can solve the problems of poor low-temperature storage, low voltage retention, and poor light distribution, and achieve high voltage retention, high contrast, and good The effect of orientation properties

Active Publication Date: 2022-06-17
JIANGSU HECHENG DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to improve the problems of poor orientation, poor light distribution, low voltage retention, and poor low-temperature storage in liquid crystal display devices, and how to enhance the contrast of liquid crystal display devices to achieve high-quality liquid crystal display devices

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 8

[0184] The liquid crystal composition HLC-1 of Example 8 is prepared according to the compounds and weight percentages listed in Table 6, and it is filled in the liquid crystal display device of the present invention for performance testing. The test data are shown in the following table:

[0185] Table 6 Liquid crystal composition formulation and its test performance

[0186]

[0187]

Embodiment 9

[0189] The liquid crystal composition HLC-2 of Example 9 is prepared according to the compounds and the weight percentages listed in Table 7, and it is filled in the liquid crystal display device of the present invention for performance testing. The test data are shown in the following table:

[0190] Table 7 Liquid crystal composition formulation and its test performance

[0191]

Embodiment 10

[0193] The liquid crystal composition HLC-3 of Example 10 was prepared according to the compounds and weight percentages listed in Table 8, and it was filled in the liquid crystal display device of the present invention for performance testing. The test data are shown in the following table:

[0194] Table 8 Liquid crystal composition formulation and its test performance

[0195]

[0196]

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Abstract

The present invention provides a liquid crystal display device, comprising: an upper substrate, a liquid crystal material layer, and a lower substrate, wherein the liquid crystal material layer is composed of a liquid crystal composition, and the liquid crystal composition contains one or more A compound of general formula I, and the liquid crystal display device comprising the liquid crystal composition has the advantages of low driving voltage, high voltage retention rate, fast response speed, high contrast ratio and good low-temperature storage characteristics.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a liquid crystal display device having the characteristics of good low temperature storage stability, high contrast ratio, fast response, low driving voltage and high voltage retention rate. Background technique [0002] In the liquid crystal display element, the classification based on the operation mode of liquid crystal molecules is: phase change (PC), twisted nematic (TN), super twisted nematic (STN), electronically controlled birefringence. (electrically controlled birefringence, ECB), optically compensated bend (optically compensated bend, OCB), in-plane switching (in-plane switching, IPS), vertical alignment (vertical alignment, VA), fringe field switching (fringe field switching, FFS), electric field Modes such as field-induced photo-reactive alignment (FPA). Component-based driving methods are classified into passive matrix (PM) and active matrix (AM). PM is class...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K19/44G02F1/137
CPCG02F1/137C09K19/44G02F1/13712
Inventor 王盼盼徐爽
Owner JIANGSU HECHENG DISPLAY TECH CO LTD
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