Liquid crystal composition and liquid crystal lens

Abstract

The liquid crystal composition comprises the a first compound (a), a second compound (b) and a third compound (c), a molecular structural formula of the first compound is shown in a specification, the molecular structural formula of the second compound is shown in the specification, the molecular structural formula of the third compound is shown in the specification, and the liquid crystal composition has high birefringence, low rotation viscosity, and high splay elastic constant, and is helpful for increasing the response speed of the liquid crystal lens. The invention also relates to the liquid crystal lens of the liquid crystal composition.

Description

technical field [0001] The invention relates to the field of liquid crystal technology, and in particular to a liquid crystal composition and a liquid crystal lens. Background technique [0002] Stereoscopic display is the development direction of the display field. In particular, naked-eye 3D display does not require wearing glasses, which further improves viewing comfort. In naked-eye 3D display devices, light-splitting devices are needed to transmit the differentiated pixel information in the display to the left and right eyes of people. Commonly used light-splitting devices include lenses and slits. The lenses used in 3D display devices can be roughly divided into two types: one has the conventional physical shape of the lens, such as a curved surface structure, and is often prepared by UV polymerization or thermal polymerization using polymerizable anisotropic optical materials, but not Suitable for large-scale mass production, and the yield rate is low; the other is a...

AI Technical Summary

Problems solved by technology

The lenses used in 3D display devices can be roughly divided into two types: one has the conventional physical shape of the lens, such as a curved surface structure, and is often prepared by UV polymerization or thermal polymerization using polymerizable anisotropic optical materials, but not Suitable for large-scale mass production, and the yield rate is low; the other is a liquid crystal lens, which sandwiches a liquid crystal material between two electrode substrates. The effect of the lens can be realized through the electric field gradient, and the liquid crystal lens can be produced by using the existing production line of the liquid crystal display, which is conducive to large-scale mass production and promotion

[0005] At present, in the prior art, in order to obtain greater optical anisotropy, the traditional method of preparing liquid crystal materials with high birefringence index, for example, increases the length of the conjugated structure of molecules, however, the extension of the conjugated length will lead to The viscosity of the liquid crystal material increases, and generally the elastic coefficient of expansion is small, which will have a serious impact on the response speed of the liquid crystal.

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