Polymer dispersed liquid crystal type light control body using nickel-based electrode, and manufacturing method thereof

A technology for dispersing liquid crystals and polymers, which is used in optical elements, optics, nonlinear optics, etc. to change the spectral characteristics of emitted light, and can solve the problems of increasing energy consumption, unfavorable effects, blocking or absorbing heat rays, etc. problems, to achieve cost reduction, excellent blocking effect, and energy-saving effects

Inactive Publication Date: 2015-02-04
Q SYS
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the PDLC photocontrol body using the ITO electrode substrate can pass most infrared rays, so the effect of blocking or absorbing heat rays is not significant
Therefore, when a PDLC type photocontrol body is used in a building, it cannot control the selective blocking or transmission of heat rays of sunlight, making it difficult to reduce cooling costs in summer and heating costs in winter
In particular, when a PDLC-type photocontrol body is applied to a sunroof of a vehicle, it does not have a function of blocking heat rays of sunlight, and may disadvantageously increase energy consumption for cooling or heating a vehicle, and thus is not currently applicable to vehicle application

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Polymer dispersed liquid crystal type light control body using nickel-based electrode, and manufacturing method thereof
  • Polymer dispersed liquid crystal type light control body using nickel-based electrode, and manufacturing method thereof
  • Polymer dispersed liquid crystal type light control body using nickel-based electrode, and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment 1: the preparation of the photocontrol body comprising Ni deposition substrate (film base)-PDLC layer-Ni deposition substrate (film base)

[0051] (1) Formation of Ni-deposited PET film for PDLC type photocontrol body

[0052] For the thermal deposition of SiO on a 188 μm thick PET film 2 Buffer layer, using an evaporation system, coated containing 99.99% granular SiO 2 of evaporative substances. For thermal deposition, the internal vacuum of the evaporator chamber was set to 1.3x10 using a roughing rotary pump -3 Torr, then using a booster pump and a high vacuum oil diffusion pump, keep it at 3.0x10 -5 support. To remove organic matter from the test sample before deposition and to enhance the adhesion between the substance and the test sample during deposition, 15 sccm of Ar and 25 sccm of O were introduced 2 , so as to perform ion beam treatment on the substrate. In SiO 2 During thermal deposition, the SiO 2 The deposition rate is maintained at an...

Embodiment 2

[0058] Embodiment 2: the preparation of the photocontrol body comprising Ni deposition substrate (film base)-PDLC layer-ITO deposition substrate (film base)

[0059] Prepare the PDLC type photocontrol body in the same manner as in Example 1, the difference is that two electrode substrates are opposite to each other, one is the Ni electrode substrate of Example 1, and the other is an ITO deposited electrode film purchased from Japan Toray ( By depositing tin oxide (SnO) doped with 10wt% on the PET film substrate 2 ) of indium oxide (InO 3 ), and satisfy the visible light transmittance of 88% and the sheet resistance of 100Ω / □ at 550nm).

[0060] Specifically, the liquid crystal dispersion composition was coated to a thickness of 20 μm on one side of the Ni electrode substrate, and then an ITO-deposited electrode film of Toray was stacked thereon. Subsequently, using a 365nm metal halide lamp (UV intensity: 75mW / cm 2 , UV energy: 1050mJ / cm 2 ) light source, the light with a ...

Embodiment 3

[0061] Embodiment 3: the preparation of the photocontrol body comprising Ni deposition substrate (film base)-PDLC layer-Ni-Cr alloy deposition substrate (film base)

[0062] Prepare the PDLC type photocontrol body in the same manner as in Example 1, except that two electrode substrates are opposite to each other, one is the Ni electrode substrate of Example 1, and the other is a Ni-Cr alloy electrode substrate (at 550nm The visible light transmittance is 44%, the near-infrared transmittance at 2000nm is 37%, and the sheet resistance is 195Ω / □), the Ni-Cr alloy electrode substrate uses a content ratio (weight ratio) of Ni and Cr of 8 : 2 targets instead of Ni targets, obtained in the same way as in Example 1.

[0063] Specifically, the liquid crystal dispersion composition was applied to a thickness of 20 μm on one side of the Ni electrode substrate, and then the Ni—Cr alloy electrode substrate was stacked thereon. Subsequently, using a 365nm metal halide lamp (UV intensity: 7...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
transmittivityaaaaaaaaaa
transmittivityaaaaaaaaaa
transmittivityaaaaaaaaaa
Login to view more

Abstract

This invention relates to a polymer dispersed liquid crystal type light control body using a nickel deposited electrode or a nickel-chromium alloy deposited electrode instead of an existing indium tin oxide electrode, including: two electrode substrates having electrodes, and a light control layer formed between the two electrode substrates, wherein at least one of the two electrode substrates includes a nickel-based electrode. The light control body can exhibit superior near-infrared blocking effects in ON state, and can also manifest peel adhesion strength, pendulum hardness of a film, haze and contrast ratio adapted for commercial applications thereof, ultimately achieving energy saving performance due to heat ray blocking effects as well as cost reductions.

Description

technical field [0001] The invention relates to a polymer-dispersed liquid crystal photocontrol body that uses a nickel-based film electrode to replace the existing indium tin oxide electrode. Background technique [0002] A polymer-dispersed liquid crystal (PDLC) type photocontroller is responsive to an applied voltage and includes a polymer matrix and fine liquid crystal particles formed in the polymer matrix. Specifically, when a voltage is applied (on state), the liquid crystal is aligned in the direction of the applied electric field, and thus coincides with the passing direction of light passing through the photocontrol body, so the photocontrol body transmits light, while when no voltage is applied (OFF state), the liquid crystals are randomly oriented and thus not oriented in the direction of passage of light passing through the photocontrol body, so the photocontrol body scatters light. In short, PDLC-type photomanipulators can be driven to transmit or scatter ligh...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1334F21V9/40
CPCG02F1/1334G02F2201/083G02F1/13439
Inventor 金良培赵井大朴秀哲李相燮金权石洪镇厚
Owner Q SYS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap