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Absorption interference type all-dielectric structure color film

An all-media, structural color technology, applied in cellulose plastic material layered products, instruments, layered products, etc., can solve the problems of no human body safety characteristics, not very obvious color rendering effect, and insufficient saturation.

Active Publication Date: 2020-10-13
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The color shift of these all-dielectric optically variable pigments changes with the change of the amplitude of the reflection peak of the pigment and the shift of the wavelength. However, the color rendering effect is not very obvious, the saturation is not high enough, and the material presents a translucent effect.
[0008] 2. Disadvantages of F-P ultra-thin absorbing layer
In order to improve color saturation, these materials have introduced heavy metal layers such as chromium and nickel as absorbing layers, which do not have human safety characteristics.

Method used

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  • Absorption interference type all-dielectric structure color film
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  • Absorption interference type all-dielectric structure color film

Examples

Experimental program
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Embodiment 1

[0070]An absorption interference type all-dielectric structural color film from grass green to sky blue, comprising a base and an interference film laminated on the base, the interference film includes a low-refractive-index all-dielectric transparent material layer (low-refractive-index film layer) and a high Refractive index absorbing material layer (high refractive index film layer). The substrate was deposited on K9 glass with a diameter of 80 mm, a thickness of 2 mm, and a surface quality of 20 / 10. Based on the quarter-wavelength film stack structure, the designed film material layer structure and thickness parameters are shown in Table 1-1. The high-refractive-index absorbing material layer that is provided with on this K9 glass selects H to be the vanadium oxide (V2O5) layer, and this low-refractive-index all-dielectric transparent material layer selects L to be the silicon dioxide (SiO2) layer for use, so the high-low refractive index material film The layers are arra...

Embodiment 2

[0078] A red-to-gold absorption interference type high-saturation all-dielectric structural color film, including a substrate and an interference film laminated on the substrate, the interference film includes a low-refractive-index all-dielectric transparent material layer and an absorption-type high-refractive index material layer . The substrate was deposited on K9 glass with a diameter of 80 mm, a thickness of 2 mm, and a surface quality of 20 / 10. Based on the quarter-wavelength film stack structure, the film material layer structure and thickness parameters are designed as shown in Table 2-1. The high-refractive-index absorbing material H provided on the K9 glass is a vanadium oxide (V2O5) layer, and the low-refractive-index material L is a silicon dioxide (SiO2) layer, so that the high and low refractive index material film layers are alternately arranged, and the number of layers There are 11 floors in total. The observation angle changes from 0 degrees to 60 degrees,...

Embodiment 3

[0084] A pink-to-emerald-green absorbing interference high-saturation all-dielectric structural color film comprises a substrate and an interference film. The interference film includes a low-refractive-index all-dielectric transparent material layer and an absorbing medium high-refractive index material layer. The substrate was deposited on K9 glass with a diameter of 80 mm, a thickness of 2 mm, and a surface quality of 20 / 10.

[0085] The interference film structure is a nine-layer film stack of Air / MgF2 / Fe2O3 / MgF2 / Fe2O3 / MgF2 / Fe2O3 / MgF2 / Fe2O3 / MgF2 / Glass. The K9 glass is provided with a low-refractive index material MgF2 layer. The low-refractive index material The MgF2 layer is provided with a high-refractive-index absorbing material Fe2O3 layer, so that high and low-refractive index material film layers are alternately arranged, and there are 9 layers in total. The number of low-refractive index film layers and high-refractive index film layers can be added or subtracted acc...

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Abstract

The invention discloses an absorption interference type all-dielectric structure color film, which includes an interference film that comprises an absorption type dielectric material layer and a visible light band transparent dielectric material layer; the refractive index of the absorption type dielectric material layer in the visible spectrum 380-760 nm band is 1.8-4, the extinction coefficientis 0.01-2, and the refractive index of the visible light band transparent dielectric material layer is less than 1.7. The all-dielectric structure color film can form a reflective high-saturation thinfilm structure color, has the characteristics of excellent color saturation, different colors along with angles and environmental friendliness, and is free of a complex photoetching process.

Description

technical field [0001] The invention relates to the technical field of structural color thin films, in particular to an absorption interference type all-dielectric structural color thin film. Background technique [0002] Many organisms in nature produce colorful colors, such as butterfly wings, seven-spotted ladybugs, hummingbird feathers, colorful opals, shells, etc. From the perspective of color rendering principle, this type of color is called physical color, which is different from the chemical color of dyes (the color mainly caused by the absorption of light by pigments). Physical color refers to the reflection of light produced by light in the microstructure of organisms, The color formed by scattering, interference or diffraction is also called structural color. Due to the advantages of non-fading, environmental protection and color change with angle, structural color has broad application prospects in display, decoration, anti-counterfeiting and other fields. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06B32B9/04B32B9/00B32B17/06B32B15/18B32B15/04B32B23/04B32B33/00G02B5/22
CPCB32B9/00B32B9/04B32B15/04B32B15/18B32B17/06B32B23/04B32B27/06B32B33/00B32B2307/416G02B5/22
Inventor 卜轶坤王雨思陈楠刘晋彤李青原冯坤陈昊
Owner XIAMEN UNIV
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