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Switchable glass based on subtractive color mixing method

A technology of dimming glass and hybrid method, which is applied in the fields of optics, nonlinear optics, chemical instruments and methods, etc., can solve the problems that reflective materials are easy to interfere with navigation and communication systems, and are not conducive to the popularization and wide application of coated glass windows.

Active Publication Date: 2017-03-22
SOUTH CHINA NORMAL UNIVERSITY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 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

Method used

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  • Switchable glass based on subtractive color mixing method
  • Switchable glass based on subtractive color mixing method
  • Switchable glass based on subtractive color mixing method

Examples

Experimental program
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Effect test

Embodiment 1

[0026] The following steps are used to prepare the dimming glass based on the subtractive color mixing method: 1) Prepare two light-transmitting substrates, both of which include a substrate and a transparent electrode arranged on the surface of the substrate, and the two light-transmitting substrates are opposed to each other. A vertical alignment layer is coated on the surface, and a encapsulating plastic frame is used to encapsulate the two light-transmitting substrates to form a liquid crystal cell, and the adjustment area is provided with spacers for controlling the distance between the two light-transmitting substrates; 2) Preparation of mixed liquid crystal: under yellow light conditions, weigh 91-95.8 parts by mass of negative liquid crystal, 3-5 parts by mass of photopolymerizable liquid crystal monomer, 0.5-1 parts by mass of photoinitiator and 0.5 -1 parts by mass of the dichroic dye RL002, 0.1-1 parts by mass of the red common dye R20, and 0.1-1 parts by mass of the ...

Embodiment 2

[0032] This embodiment is basically the same as embodiment 1, but the difference is that the mixed liquid crystal is prepared under yellow light conditions by combining negative liquid crystal, photopolymerizable liquid crystal monomer, photoinitiator and dichroic dye RL013, blue The color common dye C1 and the yellow common dye Y9 are weighed into a brown reagent bottle according to the mass ratio of 94.05:3:0.5:1:0.65:0.8, and then mixed evenly to obtain a mixed liquid crystal. The liquid crystal cell prepared by the dichroic dye RL013 and the blue common dye C1 and the yellow common dye Y9 used in this example shows almost colorless and transparent state when no voltage is applied; when voltage is applied, it shows a light purple fuzzy state .

Embodiment 3

[0034] This embodiment is basically the same as embodiment 1, but the difference is that the mixed liquid crystal is prepared under the condition of yellow light by combining negative liquid crystal, photopolymerizable liquid crystal monomer, photoinitiator and dichroic dye RL014, red Common dye R20 and yellow common dye Y9 are weighed into a brown reagent bottle according to the mass ratio of 91:5:1:1:0.3:0.4, and then mixed uniformly to obtain a mixed liquid crystal. The liquid crystal cell prepared by the dichroic dye RL014, the red common dye R20, and the yellow common dye Y9 used in this embodiment shows almost a colorless and transparent state when no voltage is applied; when a voltage is applied, it shows a black fuzzy state.

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Abstract

The invention discloses switchable glass based on a subtractive color mixing method. The switchable glass comprises two opposite light transmission substrates, the space between the two light transmission substrates is packaged to form an adjustment region filled with liquid crystal mixtures, and the liquid crystal mixtures include photopolymerizable liquid crystal monomers, dichroic dyes, common dyes, photo-initiators and negative liquid crystals. When voltage is not applied, the negative liquid crystals are perpendicular to the light transmission substrates and arranged in a single-domain manner, and molecules of the dichroic dyes are similarly perpendicular to the light transmission substrates. As absorbed light of the dichroic dyes is the weakest and the dichroic dyes are colorless, light transmission rate is the highest at the moment. When the voltage is applied, the negative liquid crystals are turned to the direction parallel to the light transmission substrates, the dichroic dyes are driven to rotate in the turning process, the negative liquid crystals are parallel to the light transmission substrates and arranged in a multi-domain manner after turning as polymer networks are irregularly distributed, and the switchable glass is transformed from a light transmission state into a light scattering state and is in a colored fuzzy state according to the subtractive color mixing method.

Description

Technical field [0001] The invention relates to the field of architectural home life, in particular to a dimming glass based on a subtractive color mixing method. Background technique [0002] The light transmittance of the colored dimming glass made of colored glass or colored film in the past is greatly reduced after being energized, and the glass presents a strong color, which affects the use effect and beauty of the dimming glass. [0003] In order to achieve the purpose of sunlight transmission and reflection, the glass window is generally coated with a film so that a certain wavelength of light in the light can be reflected or transmitted by the glass window. According to different reflection and light transmission requirements, films of different materials can be used. [0004] For example, 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 the indoor has a ...

Claims

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Application Information

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IPC IPC(8): G02F1/1333G02F1/13G02F1/137C09K19/60
CPCC09K19/60G02F1/1313G02F1/1333G02F1/137G02F1/13712
Inventor 胡小文鞠纯孙海涛李楠周国富
Owner SOUTH CHINA NORMAL UNIVERSITY
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