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A dimming 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 of unfavorable popularization and wide application of coated glass windows, reflective materials easily interfering with navigation and communication systems, etc.

Active Publication Date: 2019-04-30
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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  • A dimming glass based on subtractive color mixing method
  • A dimming glass based on subtractive color mixing method
  • A dimming glass based on subtractive color mixing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The following steps are used to prepare the switchable glass based on the subtractive color mixing method: 1) Prepare two light-transmitting substrates, the two light-transmitting substrates both include a substrate and a transparent electrode arranged on the surface of the substrate, and the two light-transmitting substrates are opposite to each other A vertical alignment layer is coated on the surface of the substrate, and an encapsulating plastic frame is used to encapsulate the space between the two light-transmitting substrates to form a liquid crystal cell, and a spacer for controlling the distance between the two light-transmitting substrates is provided in the adjustment area; 2) Preparation of mixed liquid crystals: under yellow light conditions, 91-95.8 parts by mass of negative liquid crystals, 3-5 parts by mass of photopolymerizable liquid crystal monomers, 0.5-1 parts by mass of photoinitiators and 0.5 parts by mass of -1 mass part of dichroic dye RL002, 0.1...

Embodiment 2

[0032] This example is basically the same as Example 1, except that the mixed liquid crystal is prepared by mixing negative liquid crystal, photopolymerizable liquid crystal monomer, photoinitiator and dichroic dye RL013, blue Color common dye C1 and yellow common dye Y9 were 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 dichroic dye RL013, blue common dye C1, and yellow common dye Y9 used in this example is almost colorless and transparent when no voltage is applied; when voltage is applied, it shows a lavender blurred state .

Embodiment 3

[0034] This example is basically the same as Example 1, the difference is that the mixed liquid crystal is prepared by mixing negative liquid crystal, photopolymerizable liquid crystal monomer, photoinitiator and dichroic dye RL014, red Common dye R20 and yellow common dye Y9 were weighed into a brown reagent bottle according to the mass ratio of 91:5:1:1:0.3:0.4, and then mixed evenly 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 example is almost colorless and transparent when no voltage is applied; it is black and fuzzy when voltage is applied.

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Abstract

The invention discloses a dimming glass based on a subtractive color mixing method, which comprises two light-transmitting substrates arranged oppositely, and an adjustment area is formed between the two light-transmission substrates. The adjustment area is filled with a liquid crystal mixture, and the liquid crystal mixture includes a Photopolymerized liquid crystal monomers, dichroic dyes, ordinary dyes, photoinitiators and negative liquid crystals. When no voltage is applied, the negative liquid crystals are arranged in a single domain perpendicular to the light-transmitting substrate, and the dichroic dye molecules are also Perpendicular to the light-transmitting substrate, the dichroic dye absorbs the weakest light and presents a colorless state, at which time the light transmittance reaches the highest; when a voltage is applied, the negative liquid crystal turns to a direction parallel to the light-transmitting substrate, turning During the process, the dichroic dye is driven to rotate. Because of the irregular distribution of the polymer network, the negative liquid crystal turns into a multi-domain arrangement parallel to the light-transmitting substrate, which makes the switchable glass change from the light-transmitting state to the light-scattering state. According to the method of subtractive color mixing, the glass presents a colored fuzzy state.

Description

technical field [0001] The invention relates to the field of construction and household life, in particular to a dimming glass based on a subtractive color mixing method. Background technique [0002] In the past, the light transmittance of color dimming glass made of colored glass or color film is greatly reduced after electrification, and the glass presents a very strong color, which affects the use effect and appearance of dimming glass. [0003] 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. [0004] 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, s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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