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Filter film, preparation method of filter film and electronic control color-changing smart window

A filter film, transparent and conductive technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems of color types of discoloration and difficulty in response speed.

Inactive Publication Date: 2019-03-08
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, an embodiment of the present invention provides a filter film, a preparation method of a filter film, and an electronically controlled color-changing smart window to solve the problem of using electrochromic chemical materials to achieve its color-changing function in the prior art, but its color-changing The color types and response speed are difficult to meet people's technical problems in real life

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  • Filter film, preparation method of filter film and electronic control color-changing smart window
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  • Filter film, preparation method of filter film and electronic control color-changing smart window

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Embodiment 1

[0044] An embodiment of the present invention provides a filter film, figure 1 For a structural schematic diagram of a filter film provided in an embodiment of the present invention, see figure 1 , the filter film includes: a first conductive transparent substrate 10; a first alignment layer 11 formed on the first conductive transparent substrate 10; a solid polymer liquid crystal 12 formed on the first alignment layer 11, a solid polymer liquid crystal 12 Being a one-dimensional photonic crystal, solid polymer liquid crystal 12 is used to reflect light in a first preselected wavelength range.

[0045] A photonic crystal refers to an artificial periodic dielectric structure with a photonic band gap (Photonic Band-Gap, PBG for short), and is sometimes called a PBG photonic crystal structure.

[0046] An embodiment of the present invention provides a filter film, which includes a solid polymer liquid crystal. The solid polymer liquid crystal 12 is a one-dimensional photonic cry...

Embodiment 2

[0066] On the basis of the above-mentioned embodiments, the embodiments of the present invention provide a method for preparing a filter film, figure 2 It is a schematic flowchart of a method for preparing a filter film provided by an embodiment of the present invention. by figure 1 For example, see figure 2 , the method includes the following steps:

[0067] Step 110, providing a first transparent conductive substrate.

[0068] In this embodiment, the first transparent conductive substrate may be transparent indium tin oxide (ITO) glass or polyethylene terephthalate (PET).

[0069] see figure 1 , providing a first transparent conductive substrate 10 .

[0070] Step 120, forming a first alignment layer on the first transparent conductive substrate.

[0071] see figure 1 , forming a first alignment layer 11 on the first transparent conductive substrate 10 .

[0072] Specifically, an alignment agent is coated on the first transparent conductive substrate, followed by a...

Embodiment 3

[0086] On the basis of the above-mentioned embodiments, the embodiments of the present invention provide an electronically controlled color-changing smart window. Figure 4 For a schematic structural diagram of an electronically controlled color-changing smart window provided in an embodiment of the present invention, see Figure 4 , the electronically controlled color-changing smart window includes: a second transparent conductive substrate 20, the second transparent conductive substrate 20 includes the light filter film involved in the above embodiment; the second preset mass ratio formed on the second transparent conductive substrate 20 A mixture 30 of a dichroic dye, a dual-frequency liquid crystal, and a second chiral agent, the chiral direction of the second chiral agent is opposite to that of the first chiral agent; The insulating spacer 40 on the mixture 30 of the chromatic dye, the dual-frequency liquid crystal and the second chiral agent; the third transparent conduc...

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Abstract

The embodiment of the invention discloses a filter film, a preparation method of the filter film, an electric control color-changing smart window and the filter film. The filter film comprises a firstconductive transparent substrate, a first alignment layer formed on the first conductive transparent substrate, and a solid polymer liquid crystal formed on the first alignment layer. The solid polymer liquid crystal is a one-dimensional photonic crystal, used for reflecting light in the first preselected wavelength range. According to the technical scheme of the embodiment of the invention, thefilter film comprises a solid polymer liquid crystal, wherein the solid polymer liquid crystal is a one-dimensional photonic crystal, and the refractive index inside the solid polymer liquid crystal is periodically changed for reflecting light in the first preselected wavelength range.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of optical devices, in particular to a filter film, a method for preparing the filter film, and an electronically controlled color-changing smart window. Background technique [0002] Liquid crystal is a special form of matter whose state of matter is between solid crystal and traditional liquid. Today, liquid crystals have been widely used in displays and various optical photonic devices. [0003] In the current electrochromic devices, taking electrochromic smart windows as an example, most of them use electrochromic chemical materials to realize their color changing function, but the color types and response speed of the color change are difficult to meet people's needs for real life. . The development of fast-response electrochromic devices has become a hotspot in current applications and research, and its research is of great significance. Contents of the invention [0004]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/137G02F1/139
CPCG02F1/13718G02F1/13737G02F1/139G02F1/13775
Inventor 罗丹李勇
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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