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Electric response infrared reflection window and infrared reflection method

A technology of infrared reflection and electrical response, applied in optics, nonlinear optics, static indicators, etc., can solve the problem that reflective materials are easy to interfere with navigation and communication systems, coated glass windows are difficult to use in a large number of buildings, unfavorable for the popularization of coated glass windows and Wide application and other issues

Active Publication Date: 2015-07-22
SOUTH CHINA NORMAL UNIVERSITY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At the same time, most of the reflective materials used in coated glass are based on ion crystals doped with metals and metal oxides. The reflective materials that make up this kind of glass are easy to interfere with navigation and communication systems. This shortcoming is not conducive to the popularization and promotion of coated glass windows worldwide. widely used
[0006] Based on the above reasons, it is difficult for domestic and foreign coated glass windows to be widely used in a large number of buildings.

Method used

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  • Electric response infrared reflection window and infrared reflection method
  • Electric response infrared reflection window and infrared reflection method
  • Electric response infrared reflection window and infrared reflection method

Examples

Experimental program
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Effect test

preparation example Construction

[0072] The preparation of liquid crystal film can adopt following steps to realize:

[0073] 1) Configure mixed liquid crystals: under yellow light conditions, weigh nematic liquid crystals A, nematic liquid crystals B, nematic liquid crystals C, chiral liquid crystals and photoinitiators into UV-resistant reagent bottles in proportion, then press Prepare the polymerization inhibitor according to the ratio, and configure it as a polymerization inhibitor solution with a concentration of 100-300ppm; then add the polymerization inhibitor solution into the anti-ultraviolet reagent bottle and mix evenly, and dry the mixed solution naturally until the solvent is completely volatilized to obtain The liquid crystal is mixed; the solvent used for the polymerization inhibitor solution can be easily volatile as long as it is compatible with each component and does not react with each component; for example, tetrahydrofuran can be used as a solvent.

[0074] 2) Filling and orientation of ...

Embodiment 1

[0092] Liquid crystal cell preparation

[0093] a) Clean the glass substrates 7 and 8 .

[0094] Use acetone, deionized water, and isopropanol to clean in an ultrasonic cleaner for 10 minutes in sequence; finally, dry in an oven at 120°C for 30 minutes.

[0095] b) Preparation of polyimide alignment layer.

[0096] Use N-methylpyrrolidone (NMP) and ethylene glycol butyl ether (BCS) to dilute the DL-2590 polyimide solution at a ratio of 4:1 to a solid content of 2%. Then spin-coat the diluted polyimide solution onto the glass substrates 7 and 8 of 30mm*30mm, the spin-coating speed is 2500r / min, and the time is 1min, thereby forming a layer of polyimide on the glass substrates 7 and 8. Amine film; then pre-baking and curing the glass plates 7 and 8, the pre-baking temperature is 90°C, and the baking time is 90s; the curing is divided into two steps: first set the oven temperature to 105°C, and bake for 30min , then raise the temperature to 250°C and keep the temperature const...

Embodiment 2

[0105] Preparation of liquid crystal cell: same as Example 1.

[0106] Preparation of liquid crystal thin films

[0107] 1) Configure mixed liquid crystals: under yellow light conditions, mix nematic liquid crystals A, nematic liquid crystals B, nematic liquid crystals C, chiral liquid crystals and photoinitiators according to HCM-008: HCM-021: HCM-020: HCM-006: Photoinitiator-2959=25:35:37.09:1.9:1 ratio, weighed into a brown reagent bottle; then weigh an appropriate amount of p-benzoquinone inhibitor in proportion, and configure it to a concentration of 100ppm of benzoquinone polymerization inhibitor solution was added to the reagent bottle and mixed evenly; then the mixed solution was naturally dried until the solvent was completely volatilized to obtain a mixed liquid crystal;

[0108] 2) Filling and orientation of liquid crystals: under yellow light, heat the mixed liquid crystals to 90°C to transform each liquid crystal into an isotropic liquid state, then inject the mi...

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Abstract

The invention relates to an electric response infrared reflection window and infrared reflection method. The electric response infrared reflection window comprises two opposite light transmitting substrates which are electrically connected with two electrodes of a power source assembly respectively, a carrier liquid crystal filling the space between the two light transmitting substrates, and liquid crystal thin film fragments mixed in the carrier liquid crystal, wherein the liquid crystal thin film fragments are arranged parallel with the light transmitting substrates under action of the carrier liquid crystal in a directional mode. The liquid crystal thin film fragments and the carrier liquid crystal are mixed, a mixture is injected between the two light transmitting substrates capable of having access to voltage, the steering direction of the carrier liquid crystal is controlled by driving the voltage, and therefore the liquid crystal thin film fragments deviate to adjust the reflection and transmission of infrared light, and the purpose that the reflection window can freely adjust the reflecivity of the infrared light is achieved. The electric response infrared reflection window and infrared reflection method can be applied to the building home furnishing field.

Description

technical field [0001] The invention relates to the field of construction and home furnishing, in particular to an electric response infrared reflection window and an infrared light reflection method. Background technique [0002] In order to achieve the purpose of sunlight transmission and reflection, glass windows are generally coated so that light of a certain wavelength in the light can be reflected or transmitted by the glass windows. According to different reflective and light-transmitting requirements, films of different materials can be used. [0003] For example, low-emissivity (Low-E) glass has a coating layer on the glass surface. The coating layer has a high transmittance to visible light and a high reflectivity to far-infrared radiant heat, so it has a thermal insulation effect indoors. However, once the structure of Low-E coated glass is formed, its optical properties will not be reversibly adjusted in two directions according to environmental changes or perso...

Claims

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Application Information

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IPC IPC(8): G02F1/133G02F1/1343G02F1/1337
CPCG02F1/13306G02F1/134309G02F1/13718
Inventor 袁冬刘延国何瑛悠迪克·杨·波尔刘丹青周国富
Owner SOUTH CHINA NORMAL UNIVERSITY
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