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A kind of electrochromic fiber and preparation method thereof

An electrochromic and fiber technology, applied in the direction of instruments, nonlinear optics, optics, etc., can solve the problems of adapting to the limitations of the scene, the difficulty of external control of photochromic fibers, etc., and achieve the effects of high sensitivity, bright colors and high production efficiency

Active Publication Date: 2021-01-26
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Solve the difficulties in external control of thermochromic and photochromic fibers based on liquid crystal materials, adapt to the limitations of the scene, and meet the rigid demand for flexible displays in the fields of flexible sensing and smart wearables in the current situation

Method used

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  • A kind of electrochromic fiber and preparation method thereof
  • A kind of electrochromic fiber and preparation method thereof
  • A kind of electrochromic fiber and preparation method thereof

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Embodiment Construction

[0043] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0044] figure 1 It is a schematic diagram of the device for preparing electrochromic fibers in the present invention. The method for preparing electrochromic fiber comprises the following steps:

[0045] S1: Preparing a porous micro-nano structured fiber preform, the pores include holes reserved for electrodes and holes filled with liquid crystal material.

[0046] S11: Prepare a solid structur...

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Abstract

The invention discloses an electrochromic fiber and a preparation method thereof. The electrochromic fiber includes an electrode and a base material, and the electrode includes at least a pair of electrode wires arranged in parallel, and the electrode wires are arranged on the base material. In addition, the electrochromic fiber also has a liquid crystal material, the substrate has at least one pore-like structure parallel to the electrode wire, and the liquid crystal material is filled in the pore-like structure of the substrate. The color-changing fiber based on the liquid crystal material excited by the electric field provided by the present invention is obviously superior to light and temperature in terms of regulation, and its good controllability and flexibility have great application advantages in flexible displays such as flexible sensing and smart wear. The electrochromic fiber based on the liquid crystal material is prepared by a thermal stretching process, which has high production efficiency and can be produced on a large scale.

Description

technical field [0001] The invention relates to the field of functional fibers, in particular to an electrochromic fiber and a preparation method thereof. Background technique [0002] The liquid crystal material has a one-dimensional or two-dimensional ordered structure. The orientation of this ordered structure can lead to a change in the refractive index of the liquid crystal material to light under the action of temperature, electric field or light (realize the Bragg reflection of incident light), resulting in It shows bright colors under the irradiation of visible light. At present, liquid crystal materials are mainly used in many aspects such as electronic labels, e-books, smart cards, flat-panel displays, large advertising billboards and handwriting computers. The main limitation is that the two-dimensional rigid plane is constructed. , unable to meet the needs of some fields (such as flexible sensing, smart wearable). [0003] There are many sources of color-changin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13G02F1/1333G02F1/1343G02F1/137
CPCG02F1/1313G02F1/1333G02F1/1343G02F1/13439G02F1/13718
Inventor 陶光明李攀汪相如向远卓郭臻王影丽
Owner HUAZHONG UNIV OF SCI & TECH
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