Liquid crystal composition and liquid crystal display device

A technology of liquid crystal compositions and compounds, applied in the directions of liquid crystal materials, instruments, chemical instruments and methods, to achieve the effects of high contrast, low threshold voltage, and high-definition bright spots

Pending Publication Date: 2021-11-19
JIANGSU HECHENG DISPLAY TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the preparation of liquid crystal materials with suitable properties in all aspects often requires creative labor.

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

[0266] The liquid crystal composition of Example 1 was formulated according to the compounds listed in Table 3 and their weight percentages, and filled between the two substrates of the liquid crystal display for performance testing.

[0267] Formulation and performance parameter test result of table 3 liquid crystal composition

[0268]

[0269]

Embodiment 2

[0271] The liquid crystal composition of Example 2 was prepared according to the compounds listed in Table 4 and their weight percentages, and filled between the two substrates of the liquid crystal display for performance testing.

[0272] Formulation and performance parameter test results of the liquid crystal composition of table 4

[0273]

Embodiment 3

[0275] The liquid crystal composition of Example 3 was prepared according to the compounds listed in Table 5 and their weight percentages, and filled between the two substrates of the liquid crystal display for performance testing.

[0276] Formulation and performance parameter test result of table 5 liquid crystal composition

[0277]

[0278]

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PUM

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Abstract

The invention provides a liquid crystal composition and a liquid crystal display device containing the liquid crystal composition. The liquid crystal composition comprises at least one compound as shown in a general formula I, at least one compound as shown in a general formula II and at least one compound as shown in a general formula III. Compared with the prior art, the liquid crystal composition disclosed by the invention has a relatively low low-temperature storage phase change point, a relatively high clearing point, relatively large optical anisotropy, a relatively large dielectric anisotropy absolute value and relatively low rotary viscosity; and the liquid crystal display device comprising the liquid crystal composition has a wide use temperature range, a high contrast ratio, a low threshold voltage and a fast response speed.

Description

technical field [0001] The invention relates to the field of liquid crystals, in particular to a liquid crystal composition and a liquid crystal display device containing the liquid crystal composition. Background technique [0002] At present, liquid crystals have been widely used in the field of information display, and at the same time, their application in optical communication has also made some progress. In recent years, the applications of liquid crystal compounds have been remarkably broadened to display devices, electro-optical devices, electronic components, sensors, and the like. [0003] Based on the operation mode of liquid crystal molecules, liquid crystal display elements can be classified into phase change (phase change, PC), twisted nematic (twisted nematic, TN), super twisted nematic (super twisted nematic, STN), electrically controlled birefringence (electrically controlled controlled briefringence (ECB), optically compensated bend (OCB), in-plane switchi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/44G02F1/137
CPCC09K19/44G02F1/137
Inventor 王盼盼姚利芳丁文全
Owner JIANGSU HECHENG DISPLAY TECHCO
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