Dimming function film, dimming function assembly and dimming function device

A technology of functional components and functional films, applied in optics, instruments, nonlinear optics, etc., can solve problems such as the inability to effectively control the passage of ultraviolet rays

Inactive Publication Date: 2016-11-23
ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims to provide a dimming functional film, a dimming functional component and a dimming functional device to solve the problem that the dimming functional film in the prior art cannot effectively control the passage of ultraviolet rays

Method used

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  • Dimming function film, dimming function assembly and dimming function device
  • Dimming function film, dimming function assembly and dimming function device
  • Dimming function film, dimming function assembly and dimming function device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] In this embodiment, a dimming functional film is prepared, and its preparation method is as follows:

[0054] Fix two rolls of ITO film on the coating machine; secondly, drop the pre-prepared polymer-dispersed liquid crystal substrate containing viologen compound to be cured slurry evenly between the two layers of ITO film, and adjust the roller pressure wheel Pressure value, at a speed of 1m / min, the coating is completed at a uniform speed, and finally passed through the UV curing machine, after the light intensity (100 ~ 500mj / cm 2 ) cured by ultraviolet radiation to form a dimming functional layer.

[0055] The raw material components and dosage of the dimming functional layer are as follows:

[0056]

[0057] The above-mentioned liquid crystal has a molecular weight of 280, a refractive index of 1.435, a dielectric coefficient of 10, a clearing point of 80°C, an optical anisotropy Δn of 0.261, and a viscosity of 53; the square resistance of the ITO film is 350Ω / ...

Embodiment 2

[0069] In this embodiment, a dimming functional film is prepared, and its preparation method is as follows:

[0070] Fix two rolls of ITO film on the coating machine; secondly, drop the pre-prepared polymer-dispersed liquid crystal substrate containing viologen compound to be cured slurry evenly between the two layers of ITO film, and adjust the roller pressure wheel Pressure value, at a speed of 1m / min, the coating is completed at a uniform speed, and finally passed through the UV curing machine, after the light intensity (100 ~ 500mj / cm 2 ) cured by ultraviolet radiation to form a dimming functional layer.

[0071] The raw material components and dosage of the dimming functional layer are as follows:

[0072]

[0073] The above-mentioned liquid crystal has a molecular weight of 280, a refractive index of 1.435, a dielectric coefficient of 10, a clearing point of 80°C, an optical anisotropy Δn of 0.261, and a viscosity of 53; the square resistance of the ITO film is 350Ω / ...

Embodiment 3

[0084] In this embodiment, a dimming functional film is prepared, and its preparation method is as follows:

[0085] Fix two rolls of ITO film on the coating machine; secondly, drop the pre-prepared polymer-dispersed liquid crystal substrate containing viologen compound to be cured slurry evenly between the two layers of ITO film, and adjust the roller pressure wheel Pressure value, at a speed of 1m / min, the coating is completed at a uniform speed, and finally passed through the UV curing machine, after the light intensity (100 ~ 500mj / cm 2 ) cured by ultraviolet radiation to form a dimming functional layer.

[0086] The raw material components and dosage of the dimming functional layer are as follows:

[0087]

[0088] The above-mentioned liquid crystal has a molecular weight of 280, a refractive index of 1.435, a dielectric coefficient of 10, a clearing point of 80°C, an optical anisotropy Δn of 0.261, and a viscosity of 53; the square resistance of the ITO film is 350Ω / ...

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Abstract

The invention discloses a dimming function film, a dimming function assembly and a dimming function device. The dimming function film comprises an upper electrode layer, a dimming function layer and a lower electrode layer from top to bottom. The dimming function layer comprises a polymer dispersion liquid crystal base material and a UV blocking function compound dispersed in the polymer dispersion liquid crystal base material. The UV blocking function compound is selected from one or more of a viologen compound, dipyridine and a derivative thereof, anthraquinone and a derivative thereof, tetrathifulvalene and a derivative thereof, and pyrazoline and a derivative thereof. In the dimming function film, the compounds are dispersed in the polymer dispersion liquid crystal base material to form the dimming function layer. In the actual operation process, the compounds can be promoted to react by contorlling a direct current power source, and therefore controllable passing of ultraviolet light is achieved. The turning direction of liquid crystal molecules in a PDLC base layer is controlled by controlling the alternating current voltage, and therefore conversion between brightness and darkness is achieved.

Description

technical field [0001] The invention relates to the field of light-adjusting functional film manufacturing, in particular to a light-adjusting functional film, a light-adjusting functional component, and a light-adjusting functional device. Background technique [0002] Polymer dispersed liquid crystal (PDLC for short) is made by mixing low-molecular liquid crystal with prepolymer and undergoing polymerization reaction under certain process conditions. Micron-scale liquid crystal particles are uniformly dispersed in the solid polymer matrix, and the liquid crystal particles have dielectric anisotropy. Under the condition of an external electric field, the polymer-dispersed liquid crystal can realize the transition between transparent and opaque, so that it has its own The light transmittance of the film is adjustable. Due to its unique adjustable light transmittance, it is widely used in light-adjustable functional films. [0003] At present, the structure of the dimming f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1334G02F1/133
CPCG02F1/1334G02F1/13306
Inventor 马文涛丁清华吴泓辉
Owner ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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