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Magnetic response liquid crystal intelligent window

A technology of smart windows and magnetic response, applied in the field of smart windows, can solve the problems of AC power that cannot be directly applied to households, breakdown of conductive layers, etc.

Active Publication Date: 2020-03-24
SOUTH CHINA NORMAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional electrical response smart windows need to connect a voltage between the conductive layers of the upper and lower substrates. When the voltage is too high, the risk of breakdown of the conductive layer will easily occur. In addition, some electrical response smart windows can only be driven by DC power supply and cannot be directly applied. Disadvantages of Home AC

Method used

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  • Magnetic response liquid crystal intelligent window
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  • Magnetic response liquid crystal intelligent window

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] see figure 1 , this embodiment provides a magnetically responsive liquid crystal smart window, including a substrate one 1 and a substrate two 2 oppositely arranged, the substrate one 1 includes a light-transmitting substrate 11 and an alignment layer 12, and the substrate two 2 includes a light-transmitting Substrate two 21 and alignment layer two 22, the alignment layer 12 of the substrate one 1 is opposite to the alignment layer two 22 of the substrate two 2, between the light-transmitting substrate one 11 and the alignment layer one 12 of the substrate one 1 A patterned electrode 3 is arranged between them, and the patterned electrode 3 can generate a magnetic field when energized, and a liquid crystal mixture 4 is filled between the substrate one 1 and the substrate two 2, and the liquid crystal mixture 4 includes magnetic particles 41 and The main liquid crystal 42 . In the present embodiment, the orientation layer one 12 and the orientation layer two 22 are para...

Embodiment 2

[0041] This embodiment provides a magnetically responsive liquid crystal smart window, which is the same as that of Embodiment 1, except that the patterned electrode 3 disposed on the light-transmitting substrate 1 is a rectangular electrode. Such as Figure 6 As shown, the patterned electrode 3 is composed of a plurality of rectangular electrodes ( Figure 5 4 are shown in ) to form a rectangular electrode, which can generate a magnetic field when the patterned electrode 3 is powered on.

Embodiment 3

[0043] see Figure 7 , the present embodiment provides a magnetically responsive liquid crystal smart window, which is the same as Embodiment 1, except that the first alignment layer 12 and the second alignment layer 22 are both vertical alignment layers, and the main body liquid crystal 42 is a negative liquid crystal, and the negative liquid crystal It is HNG30400-200, purchased from Jiangsu Hecheng Display Technology Co., Ltd., HCCH. When the patterned electrode 3 is not powered on to generate a magnetic field, under the action of the vertical alignment layer, the main liquid crystal 42 in the liquid crystal mixture 4 is vertical to the substrate. direction, the magnetic particles 41 are dispersed in the main liquid crystal 42, and the liquid crystal smart window is in a transparent state at this time. When the patterned electrode 3 is connected to an AC power source, the patterned electrode 3 generates a magnetic field, and the magnetic particles 41 move under the action o...

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Abstract

The invention discloses a magnetic response liquid crystal intelligent window. The window comprises two base plates which are oppositely arranged, wherein each substrate comprises a light-transmittingsubstrate and an orientation layer; the alignment layers of the two substrates are oppositely arranged, the space between the two substrates is filled with a liquid crystal mixture, the liquid crystal mixture comprises magnetic particles and main body liquid crystals, a patterned electrode is arranged between the light-transmitting substrate and the alignment layer of at least one substrate, andthe patterned electrode can generate a magnetic field when being electrified. Compared with a traditional electrically-driven intelligent window, the magnetic response intelligent window can be used under both direct current and alternating current; in addition, due to the fact that the mode that a power source is connected between the upper conducting layer and the lower conducting layer is not adopted, the danger of breakdown of the conducting layers is avoided, high voltage does not need to be connected to the intelligent window, good economy and safety are achieved, application scenes arericher, and good application prospects are achieved in the fields of vehicle window glass, household glass windows, glass curtain walls and the like.

Description

technical field [0001] The invention relates to the technical field of smart windows, in particular to a magnetically responsive liquid crystal smart window. Background technique [0002] With the increasing emphasis on environmental protection and energy saving, the rational use of energy and the research and development of energy-saving products have made significant progress. In this context, in the early 1980s, it was first proposed to apply electrochromic materials to energy-saving lighting systems such as buildings, automobiles, and airplanes to form a "smart window" that can dynamically adjust the transmittance of solar radiation. Until now, the research and application of smart windows is still one of the research hotspots. As an integral part of smart home, smart windows have attracted widespread attention in recent years. Liquid crystal smart windows can switch between transparent and blurred states according to the needs of users, achieving a balance between priv...

Claims

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Application Information

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IPC IPC(8): G02F1/137G02F1/139
CPCG02F1/13768G02F1/139
Inventor 胡小文莫丽仪周国富
Owner SOUTH CHINA NORMAL UNIVERSITY
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