Liquid crystal composition and liquid crystal lens

A technology of liquid crystal composition and liquid crystal lens, applied in the directions of liquid crystal materials, optics, instruments, etc., can solve the problems such as failure to realize the performance parameters of liquid crystal composition

Active Publication Date: 2012-02-15
SUPERD CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0011] The technical problem mainly solved by the present invention is to provide a liquid crystal composition and its liquid crystal lens to

Method used

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  • Liquid crystal composition and liquid crystal lens
  • Liquid crystal composition and liquid crystal lens
  • Liquid crystal composition and liquid crystal lens

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Experimental program
Comparison scheme
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Embodiment Construction

[0072] The present invention will be described in detail below in conjunction with examples.

[0073] For the convenience of expression, the group structures of liquid crystal compounds hereinafter are represented by the codes listed in Table 1:

[0074] Table 1: Group structure codes of liquid crystal compounds

[0075]

[0076]

[0077] Take the compound of the following structural formula as an example:

[0078] If the structural formula is represented by the code listed in Table 1, it can be expressed as: nCPTWS. Among them, n in the code represents the number of C atoms of the left-end alkyl group, for example, n is 3, which means that the alkyl group is -C 3 h 7 ; C in the code represents cyclohexyl; P in the code represents phenylene; W in the code represents 3,5-difluorophenylene; S in the code represents isothiocyanate.

[0079] Relevant physical performance parameter codes and detection conditions that need to be detected in the embodiments are listed as ...

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Abstract

The invention discloses a liquid crystal composition, comprising a first variety of compound shown as a general formula I, a second variety of compound shown as a general formula II, a third variety of compound shown as a general formula III and a fourth variety of compound shown as a general formula IV; the invention also provides a liquid crystal lens employing the liquid crystal composition. The liquid crystal composition of the present invention has characteristics of low nematic phase initial voltage, wide phase transition temperature scope, small viscoelastic coefficient ratio gamma 1/K11, large optical anisotropy and large dielectric anisotropy, etc., and can reduce a thickness value of a liquid crystal lens box and increase response speed of the liquid crystal lens box.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal composition and a liquid crystal lens thereof. Background technique [0002] Devices such as cameras, mobile phone cameras, 3D stereoscopic image displays, and phase modulators often use zoom lenses to enlarge or reduce images to form images. A conventional zoom lens is provided with multiple lens groups, and the distance between the lens groups is changed by moving along the optical axis direction, thereby changing the overall focal length without affecting the imaging distance. However, this type of lens requires a long moving distance of the lens group, resulting in a large mechanical device, slow adjustment, limited focusing range, high price, high energy consumption for device driving, and easy damage. [0003] In order to find a method to replace mechanical focusing and to change the focal length in a large range, the existing technology use...

Claims

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Application Information

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IPC IPC(8): C09K19/44G02F1/29
Inventor 吴坤吴光辉李建军
Owner SUPERD CO LTD
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