Photoresponsive smart window

A smart window and light response technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems of liquid crystal property damage, insufficient energy saving, environmental protection, and affecting the service life of PDLC smart windows

Active Publication Date: 2019-01-08
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, most of the current PDLC smart windows require a higher voltage to drive, which is not energy-saving and environmentally friendly. Moreover, long-term exposure to ultraviolet light has a great destructive effect on the properties of liquid crystals, which seriously affects the service life of PDLC-type smart windows.

Method used

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Embodiment Construction

[0038] The following describes the embodiments of the present invention in detail, and those skilled in the art will understand that the following embodiments are intended to explain the present invention, and should not be regarded as limiting the present invention. Unless otherwise specified, in the following examples that do not explicitly describe specific techniques or conditions, those skilled in the art can carry out according to commonly used techniques or conditions in this field or according to product instructions.

[0039] In one aspect of the present invention, the present invention proposes a light-responsive smart window.

[0040] According to an embodiment of the present invention, refer to figure 1 , the photoresponsive smart window includes a first substrate 100 , a liquid crystal layer 200 and a second substrate 300 arranged in layers, wherein the materials forming the liquid crystal layer 200 include cross-linked polymer A, small liquid crystal molecules B ...

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Abstract

The invention provides a photoresponsive smart window. The photoresponsive smart window comprises a first substrate, a liquid crystal layer and a second substrate, which are arranged in a lamination manner, wherein the material forming the liquid crystal layer comprises a cross-linked polymer, a liquid crystal and azobenzene. The smart window provided by the invention does not need to be providedwith electrode layers on both sides of the liquid crystal layer, a polymer network liquid crystal added with an azobenzene structure can enable the liquid crystal layer to have a photoresponsive function, the photoresponsive smart window transparent under the irradiation of polarized light and is opaque under the irradiation of natural light, and the smart window in which the orientation of the liquid crystal does not need to be controlled by voltage has better energy saving and environmental protection effect, and also has an anti-ultraviolet effect.

Description

technical field [0001] The invention relates to the technical field of smart building and home furnishing, in particular, the invention relates to a light-responsive smart window. Background technique [0002] In the past 20 years, the optoelectronic film of polymer dispersed liquid crystal is a new type of material based on the optoelectronic properties of liquid crystal. In the photoelectric thin film material, the liquid crystal and the polymer form two phases respectively, thus possessing unique properties other than the photoelectric characteristics of the liquid crystal. According to the specific dispersion method of liquid crystal in photoelectric film, it can be divided into two types: polymer dispersed liquid crystal (PDLC) and polymer network liquid crystal (PNLC). [0003] Among them, the light transmittance of the PDLC device mainly depends on the difference in refractive index between the liquid crystal droplet and its surrounding polymer. Usually, the light t...

Claims

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Application Information

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IPC IPC(8): G02F1/1334G02F1/1335C09K19/54
CPCC09K19/544C09K2019/546G02F1/1334G02F1/133528
Inventor 程张祥袁洪亮陈会顺郑琪马力毕谣赵志强钟璇王家星
Owner BOE TECH GRP CO LTD
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