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Composition for forming polymer-dispersed liquid crystal, polymer dispersed liquid crystal coating, and self-luminescent light-adjusting film

A technology for dispersing liquid crystals and compositions, applied in coatings, liquid crystal materials, optics, etc., can solve problems such as the inability to truly realize color changes, and achieve the effects of high open-state transmittance, good separation formability, and reversible color changes

Active Publication Date: 2015-10-07
ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a composition for forming polymer-dispersed liquid crystals, a polymer-dispersed liquid crystal coating, and a self-illuminating dimming film, so as to solve the defect that the color change cannot be truly realized by using the existing technology

Method used

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  • Composition for forming polymer-dispersed liquid crystal, polymer dispersed liquid crystal coating, and self-luminescent light-adjusting film
  • Composition for forming polymer-dispersed liquid crystal, polymer dispersed liquid crystal coating, and self-luminescent light-adjusting film
  • Composition for forming polymer-dispersed liquid crystal, polymer dispersed liquid crystal coating, and self-luminescent light-adjusting film

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preparation example Construction

[0053] The preparation method of each layer of the dimming film provided by the present invention is as follows:

[0054] The transparent substrate layer and the transparent electrode layer adopt commercially available materials, and the transparent electrode layer is a well-known conductive layer for those skilled in the art, including but not limited to the nano-indium tin metal oxide conductive layer; the transparent substrate layer is a technology in the art The material of the transparent substrate known to personnel includes, but is not limited to, one of glass, polycarbonate, and polyethylene terephthalate.

[0055] The preparation method of the PDLC / electroluminescent color-changing layer is as follows: the PDLC / electroluminescent color-changing layer is prepared by the polymerization-induced phase separation method (PISP), which is to mix the prepolymer UV glue with the liquid crystal to form a homogeneous solution. Radiation polymerization or direct photoinitiated po...

Embodiment 1

[0060] Such as figure 1 , the structure of the self-luminous dimming film in this embodiment is as follows from top to bottom: the first transparent substrate 110; the first transparent electrode 210; the polymer dispersed liquid crystal coating 300; the second transparent electrode 220; Material 120.

[0061] The composition of the PDLC composition is shown in Table 1; the light transmittance, haze, luminous color, and brightness properties of the self-luminous dimming film are shown in Table 2.

Embodiment 2

[0063] Such as figure 1 , the structure of the self-luminous dimming film in this embodiment is as follows from top to bottom: the first transparent substrate 110; the first transparent electrode 210; the polymer dispersed liquid crystal coating 300; the second transparent electrode 220; Material 120.

[0064] The composition of the PDLC composition is shown in Table 1; the light transmittance, haze, luminous color, and brightness properties of the self-luminous dimming film are shown in Table 2.

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Abstract

The present invention provides a composition for forming a polymer dispersed liquid crystal, a polymer dispersed liquid crystal coating and a self-luminescent light-adjusting film. According to the present invention, the composition comprises a binder, an inorganic electroluminescence material, a liquid crystal material and a photo-initiator; the polymer dispersed liquid crystal coating formed from the composition can occur stable and reversible color change and the reversible change of the lights with different colors and the transparency are presented in appearance, such that the polymer dispersed liquid crystal coating formed from the composition achieves the color change in the true sense; and compared with the dye, the influence of the inorganic electroluminescence material on the curing rate and the curing degree on the binder polymer is low, and under the ultraviolet light irradiation, the formed liquid crystal droplet separated from the binder polymer and liquid crystal mixture has the good separation moldability and can form the droplet having the large pore size, such that the polymer dispersed liquid crystal coating formed from the composition has characteristics of low driving voltage and high on-state transmittance.

Description

technical field [0001] The invention relates to the field of electroluminescent components, in particular to a composition for forming polymer-dispersed liquid crystals, a polymer-dispersed liquid crystal coating and a self-illuminating dimming film. Background technique [0002] Polymer dispersed liquid crystal (polymer dispersed liquid crystal, hereinafter replaced by PDLC) is to mix low-molecular liquid crystal with prepolymer, and undergo polymerization reaction under certain process conditions to form micron-scale liquid crystal particles uniformly dispersed in solid polymer matrix middle. 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] The PDLC structure usually consists of upper and lower layers of transparent conductive films (or glass...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/02C09D4/00C09D7/12C09K19/52G02F1/1333
Inventor 丁清华吴泓辉马文涛
Owner ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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