Liquid crystal composition and its application

A technology of liquid crystal composition and compound, which is applied in the field of liquid crystal composition and application, and liquid crystal composition, which can solve the problems of mutual restriction of composition properties, low viscosity, and difficulty in composition modulation, and achieve good display effect, low viscosity, and improved LCD display effect
CN110564427AActive Publication Date: 2019-12-13XIAN CAIJING OPTO ELECTRICAL SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAN CAIJING OPTO ELECTRICAL SCI & TECH
Publication Date
2019-12-13

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Abstract

The invention provides a liquid crystal composition and its application, which is prepared from the following raw materials: A-type compound, B-type compound and C-type compound; or from the followingraw materials: A-type compound and C-type compound; the A-type compound comprises at least one of compound I, compound II and compound III; the B-type compound comprises more than one of compound IVand compound V; the C-type compound includes more than one of compound VI compound VII and compound VIII. The liquid crystal composition provided by the invention has a wide nematic phase temperaturerange, especially widens the temperature range applied in low temperature, and also has a low viscosity, which is beneficial to improving the liquid crystal display effect and accelerating the response time. The liquid crystal composition of the invention simultaneously has appropriate optical anisotropy, high VHR, good reliability and thermal stability.
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Description

technical field

[0001] The invention belongs to the field of liquid crystal materials and relates to a liquid crystal composition, in particular to a liquid crystal composition and its application. Background technique

[0002] Liquid crystal displays are widely used in many fields and play an important role in our daily life and national defense modernization. It utilizes the optoelectronic characteristics of liquid crystal materials, assists other materials, and completes the display under the action of an electric field. According to the different characteristics and working methods of liquid crystal materials, display elements can be divided into many types, among which TN (twisted nematic) mode, STN (super twisted nematic) mode, G-H (guest-host) mode, ECB mode, etc. are commonly used. (electrically controlled birefringence) mode, VA (vertical alignment) mode, IPS (in-plane switching) mode, etc. Generally speaking, the TN and STN mode display elements generally use pos...

Claims

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