Liquid crystal composition and liquid crystal optical element

A liquid crystal composition and compound technology, applied in optics, liquid crystal materials, nonlinear optics, etc., can solve the problems of low temperature stability, poor response speed, low birefringence, slow response speed, etc., to improve focal length and response Effects of speed, large birefringence, and short response time

Pending Publication Date: 2022-04-26
NANCHANG VIRTUAL REALITY RES INST CO LTD
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  • Claims
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Problems solved by technology

[0003] At present, the liquid crystal birefringence of liquid crystal materials used in display is generally between 0.08 and 0.25. When this type of liquid crystal material is used in liquid crystal lenses, the birefringence is low, which limits the development of liquid crystal lenses. Some liquid crystal materials can also reach Relatively high birefringence, but its low temperature stability, light and high temperature stability and response speed are relatively poor, and the effect is not good in practical applications
In addition, when liquid crystals with high birefringence are driven in liquid crystal lenses, there is still a problem of slow response speed.

Method used

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  • Liquid crystal composition and liquid crystal optical element
  • Liquid crystal composition and liquid crystal optical element
  • Liquid crystal composition and liquid crystal optical element

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Embodiment Construction

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0024] At present, the liquid crystal birefringence of liquid crystal materials used in display is generally between 0.08 and 0.25. When this type of liquid crystal material is used in liquid crystal lenses, the birefringence is low, which limits the development of liquid crystal lenses. Some liquid crystal materials can also reach Relatively high birefringence, but its low temperature stability, light and high temperature stability and response speed are relatively poor, and the effec...

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Abstract

The invention provides a liquid crystal composition which comprises at least one compound in a general formula (1), at least one compound in a general formula (2) and at least one compound in a general formula (3). The liquid crystal composition provided by the invention has larger birefringence and smaller gamma1 / K11 value, so that the response time is shorter, and the liquid crystal composition has good stability under the conditions of low temperature, high temperature, ultraviolet and the like, and has the same capacity as the existing liquid crystal material in the aspect of driving voltage. In addition, the invention further provides a liquid crystal optical element.

Description

technical field [0001] The application belongs to the field of liquid crystal technology, and in particular relates to a liquid crystal composition and a liquid crystal optical element. Background technique [0002] Liquid crystal optical elements such as liquid crystal lenses are used as electronically switchable lenses for 2D and 3D, electronic lenses for focus adjustment, and the like. Calculation formula f=r for liquid crystal lens 2 / (2Δn*d), calculate its focal length, where r represents the 1 / 2 grid distance, Δn represents the birefringence of the liquid crystal, and d represents the thickness of the liquid crystal cell. The birefringence Δn is an important physical property of the liquid crystal composition. According to the formula, it can be known that in order to obtain a small focal length, the liquid crystal composition needs to have a large Δn. In addition to needing a sufficiently small focal length, the liquid crystal lens also needs as fast a response spe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/44G02F1/1333
CPCC09K19/44G02F1/1333
Inventor 马锋谭志先李建军向贤明
Owner NANCHANG VIRTUAL REALITY RES INST CO LTD
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