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Polymer-dispersed liquid crystal light dimming device

A technology for dispersing liquid crystals and polymers, applied in optics, instruments, nonlinear optics, etc., can solve problems such as complex tasks and poor effects, and achieve the effects of easy industrial production, simple structure, and good transformation effects

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

[0006] It can be seen from the above that in the prior art, regarding the switchable glass, the negative liquid crystal material is mostly used for surface orientation with PI solution, or the trans PDLC is obtained by directional polymerization during polymer growth by stretching external force, but most of the tasks are complicated. Ineffective

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Embodiment 1

[0039] Such as figure 1 As shown, the present invention provides a trans polymer dispersed liquid crystal dimming device, comprising an upper transparent substrate 10, a first functional layer 20, a polymer dispersed liquid crystal layer 30, a second functional layer 21, and a lower transparent substrate arranged in sequence. Substrate 11. The conductive layer 40 in the first functional layer 20 is arranged on the surface of the upper transparent substrate, and the microstructure layer 50 is arranged on the surface of the conductive layer; the conductive layer 40 in the second functional layer 21 is arranged on the surface of the lower transparent substrate, and the microstructure layer 50 is arranged on the surface of the transparent substrate. Layer 50 is sequentially disposed on the surface of the conductive layer.

[0040] Preferably, the conductive layer is a transparent ITO conductive layer with a thickness of 0.2 μm, a polymer dispersed liquid crystal layer with a thi...

Embodiment 2

[0042] Such as figure 1 As shown, the present invention provides a formal polymer-dispersed liquid crystal dimming device, comprising an upper transparent substrate 10, a first functional layer 20, a polymer-dispersed liquid crystal layer 30, a second functional layer 21, and a lower transparent substrate arranged in sequence. Material 11. The conductive layer 40 in the first functional layer 20 is arranged on the surface of the upper transparent substrate, and the microstructure layer 50 is arranged on the surface of the conductive layer; the conductive layer 40 in the second functional layer 21 is arranged on the surface of the lower transparent substrate, and the microstructure layer 50 is arranged on the surface of the transparent substrate. Layer 50 is sequentially disposed on the surface of the conductive layer.

[0043] Preferably, the conductive layer is a transparent ITO conductive layer with a thickness of 0.2 μm, a polymer-dispersed liquid crystal layer with a thi...

Embodiment 3

[0045] Such as figure 2 As shown, the present invention provides a trans polymer dispersed liquid crystal dimming device, comprising an upper transparent substrate 10, a first functional layer 20, a polymer dispersed liquid crystal layer 30, a second functional layer 21, and a lower transparent substrate arranged in sequence. Substrate 11. The microstructure layer 50 in the first functional layer 20 is arranged on the surface of the upper transparent substrate, and the conductive layer 40 is arranged on the surface of the microstructure layer; the microstructure layer 50 in the second functional layer 21 is arranged on the surface of the lower transparent substrate, The conductive layer 40 is sequentially disposed on the surface of the microstructure layer.

[0046] Preferably, the conductive layer is a transparent ITO conductive layer with a thickness of 1 μm, a polymer dispersed liquid crystal layer with a thickness of 50 μm, a particle size of liquid crystal particles of ...

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Abstract

The invention discloses a polymer-dispersed liquid crystal light dimming device. The polymer-dispersed liquid crystal light dimming device comprises an upper transparent base material, a first function layer, a polymer-dispersed liquid crystal layer, a second function layer and a lower transparent base material which are sequentially arranged. The first function layer and the second function layer comprise conducting layers, at least one function layer comprises a micro structure layer, the polymer-dispersed liquid crystal layer has capacity that the optical refractive ratio can be converted from n1 to n2 in voltage driving, the particle diameter of liquid crystal particles is smaller than 100nm, the refractive ratio of the micro structure layer is n, and the n is equal to n1 or n2. The refractive ratio of the polymer-dispersed liquid crystal layer can be changed by controlling a switch of a power supply. Due to refractive ratio difference between the micro structure layer and the polymer-dispersed liquid crystal layer, a transparent state can be achieved when the refractive ratios are the same, and a foggy state can be achieved when the refractive ratios are different; thus, the transparent state can be changed to a foggy state, and the purpose of dimming light is achieved. The polymer-dispersed liquid crystal light dimming device is simple in structure, easy for industrial production and good in converting effect, and the fog scale can be adjusted at will according to need.

Description

technical field [0001] The invention belongs to the technical field of electronically controlled dimming, and in particular relates to a polymer dispersed liquid crystal dimming device. Background technique [0002] Polymer dispersed liquid crystal (polymer dispersed liquid crystal) is to mix low-molecular liquid crystals with prepolymers, and undergo polymerization reaction under certain process conditions to form micron-sized liquid crystal particles uniformly dispersed in a solid polymer matrix. The obtained 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 the light transmittance of the film can be adjusted. [0003] Polymer dispersed liquid crystal technology has been widely used in electronically controlled dimming glass, holographic grating and many other technical fields. The product of polymer dispersed liquid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1334
CPCG02F1/1334G02F1/13347
Inventor 马文涛丁清华
Owner ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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