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White-light handwriting and reflectively-enhanced liquid crystal writing board and a preparation method thereof

A technology of reflection enhancement and writing board, which is applied in optics, nonlinear optics, instruments, etc., can solve the problem of narrow reflection wave width of liquid crystal thin layer, hindering the application field and application range of liquid crystal writing board, limiting the contrast of liquid crystal writing board and the brightness of writing Improvement and other issues to achieve the effect of broadening the reflected wave width, good bending resistance, and reducing the risk of contact conduction

Active Publication Date: 2018-12-18
苏州美嘉写智能显示科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reflected wave width of the liquid crystal thin layer of this type of liquid crystal writing board is narrow, which greatly limits the contrast of the liquid crystal writing board and the improvement of the brightness of writing, which also hinders the application field and application range of the liquid crystal writing board to a certain extent.

Method used

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  • White-light handwriting and reflectively-enhanced liquid crystal writing board and a preparation method thereof
  • White-light handwriting and reflectively-enhanced liquid crystal writing board and a preparation method thereof
  • White-light handwriting and reflectively-enhanced liquid crystal writing board and a preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045]The white light writing and reflection-enhanced liquid crystal writing board includes a PET transparent film coated with a silver metal grid on one side, a liquid crystal thin layer containing a chiral compound-loaded mesoporous material, and a silver metal plated on one side sequentially connected from top to bottom. Grid non-transparent black film of PET; one side of the conductive layer of the two layers of PET film is coated with insulating glue, and spacer particles are dispersed in one layer of insulating glue.

[0046] The thickness of the PET transparent film coated with silver metal grid on one side and the non-transparent black film of PET coated with silver metal grid on one side are both 180 microns; the conduction resistance value is: 10 ohms; the thickness of the insulating layer is The thickness of the liquid crystal thin layer is 5 microns; the spacer is a polymethylmethacrylate microsphere with a size of 5 microns.

[0047] The insulating adhesive materi...

Embodiment 2

[0072] The white light writing and reflection-enhanced liquid crystal writing board includes a PET transparent film coated with a copper metal grid on one side, a liquid crystal thin layer containing a chiral compound-loaded mesoporous material, and a copper metal plated on one side connected sequentially from top to bottom. Grid non-transparent black film of PET; one side of the conductive layer of the two layers of PET film is coated with insulating glue, and spacer particles are dispersed in one layer of insulating glue.

[0073] The PET transparent film coated with copper metal grid on one side and the PET non-transparent black film coated with copper metal grid on one side have a thickness of 180 microns; the conduction resistance value is: 10 ohms; the thickness of the insulating layer is The thickness of the liquid crystal thin layer is 5 microns; the spacer is a polymethylmethacrylate microsphere with a size of 5 microns.

[0074] The insulating adhesive material on on...

Embodiment 3

[0098] The white light writing and reflection-enhanced liquid crystal writing board includes a PET transparent film coated with a silver metal grid on one side, a liquid crystal thin layer containing a chiral compound-loaded mesoporous material, and a copper metal plated on one side connected sequentially from top to bottom. Grid non-transparent black film of PET; one side of the conductive layer of the two layers of PET film is coated with insulating glue, and spacer particles are dispersed in one layer of insulating glue.

[0099] The thickness of the PET transparent film coated with silver metal grid on one side and the non-transparent black film of PET coated with silver metal grid on one side are both 180 microns; the conduction resistance value is: 10 ohms; the thickness of the insulating layer is The thickness of the liquid crystal thin layer is 5 microns; the spacer is a polymethylmethacrylate microsphere with a size of 5 microns.

[0100] The insulating adhesive mater...

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Abstract

The invention discloses a white-light handwriting and reflectively-enhanced liquid crystal writing board and a preparation method thereof. The white-light handwriting and reflectively-enhanced liquidcrystal writing board comprises a polyethylene terephthalate (PET) transparent film with a silver or copper metal grid plated on one side, a liquid crystal thin layer containing a chiral compound-supported mesoporous material, and a PET non-transparent black film with a silver or copper metal grid plated on one side. According to the white-light enhanced liquid crystal writing board and the preparation method thereof, the chiral compound-supported mesoporous material is introduced into a liquid crystal system, and the diffusion of a chiral compound in mesopores is controlled, thereby making the chiral compound present gradient or uneven distribution in the liquid crystal system, resulting in the gradient or uneven distribution of the pitches of the liquid crystal system. Then, the reflective wave width of the liquid crystal system is greatly improved through ultraviolet polymerization anchoring pitches to cover the whole visible light area, thereby making the handwriting of the writingboard white, and greatly improving the brightness, contrast and other key technical indexes.

Description

technical field [0001] The invention belongs to the field of liquid crystal display, and in particular relates to a white light handwriting, reflection enhanced liquid crystal writing board and a preparation method thereof. Background technique [0002] In recent years, liquid crystal writing boards have begun to gradually replace traditional writing boards due to their advantages such as high reflective brightness, high contrast, low power consumption, and environmental protection. [0003] At present, the liquid crystal writing boards produced by most manufacturers are mostly of the reflective green light type, that is, the writing is green. The reflection wave width of the thin liquid crystal layer of this type of liquid crystal writing board is narrow, which greatly limits the contrast of the liquid crystal writing board and the improvement of the brightness of writing, which also hinders the application field and application range of the liquid crystal writing board to ...

Claims

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Application Information

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IPC IPC(8): G02F1/1334C08F220/20C08F220/28C08F220/34C08F222/14C08F2/48
CPCG02F1/1334C08F2/48C08F220/20G02F1/13345C08F220/34C08F220/281C08F222/102
Inventor 王冬赵玉真张元王玉铎
Owner 苏州美嘉写智能显示科技有限公司
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