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Easy thermal erasing type liquid crystal film writing board and preparation method

A technology of liquid crystal film and writing board, which is applied in the field of easy-to-heat erasable liquid crystal film writing board and its preparation, can solve the problems such as partial erasing cannot be realized, reduce the risk of contact conduction, facilitate transportation, and broaden the reflection wave width Effect

Active Publication Date: 2021-02-19
山东蓝贝易书信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently commercially available LCD writing boards mainly use one-key erasing, the main reason is that partial erasing cannot be realized

Method used

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  • Easy thermal erasing type liquid crystal film writing board and preparation method
  • Easy thermal erasing type liquid crystal film writing board and preparation method
  • Easy thermal erasing type liquid crystal film writing board and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The easy-to-heat-erasable liquid crystal film writing board includes a PET (polyethylene terephthalate) transparent film, a liquid crystal thin layer, PET non-transparent black film coated with ITO on one side; insulating layer is coated on the conductive layer side of PET transparent film coated with ITO on one side and PET non-transparent black film coated with ITO on one side.

[0041] The thickness of the PET transparent film coated with ITO on one side and the non-transparent black film of PET coated with ITO on one side are both 188 microns; the thickness of the insulating layer is 2 microns; the thickness of the liquid crystal thin layer is 5 microns. Microns.

[0042] The insulating layer on one side of the conductive layer of the PET transparent film coated with ITO on one side is polyvinyl alcohol acrylate conformal paint.

[0043] The insulating layer on the conductive layer side of the non-transparent black film of PET coated with ITO on one side is polyvin...

Embodiment 2

[0070] The easy-to-heat-erasable liquid crystal film writing board includes a PET transparent film coated with ITO on one side, a liquid crystal thin layer, and a PET non-transparent black film coated with ITO on one side; The conductive layer of the PET transparent film and the PET non-transparent black film coated with ITO on one side are both coated with an insulating layer.

[0071] The thickness of the PET transparent film coated with ITO on one side and the non-transparent black film of PET coated with ITO on one side are both 188 microns; the thickness of the insulating layer is 2 microns; the thickness of the liquid crystal thin layer is 5 microns. Microns.

[0072] The insulating layer on one side of the conductive layer of the PET transparent film coated with ITO on one side is polyvinyl acetate.

[0073] The insulating layer on the conductive layer side of the non-transparent black film of PET coated with ITO on one side is polyvinyl acetate and spacers.

[0074] ...

Embodiment 3

[0099] The easy-to-heat-erasable liquid crystal film writing board includes a PET transparent film coated with ITO on one side, a liquid crystal thin layer, and a PET non-transparent black film coated with ITO on one side; The conductive layer of the PET transparent film and the PET non-transparent black film coated with ITO on one side are both coated with an insulating layer.

[0100] The thickness of the PET transparent film coated with ITO on one side and the non-transparent black film of PET coated with ITO on one side are both 188 microns; the thickness of the insulating layer is 2 microns; the thickness of the liquid crystal thin layer is 5 microns. Microns.

[0101] The insulating layer on one side of the conductive layer of the PET transparent film coated with ITO on one side is epoxy resin conformal paint.

[0102] The insulating layer on one side of the conductive layer of the non-transparent black film of PET coated with ITO is epoxy resin conformal paint and spac...

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Abstract

The invention relates to the technical field of liquid crystal displaying, in particular to an easy thermal erasing type liquid crystal membrane writing board and a preparation method. The easy thermal erasing type liquid crystal membrane writing board comprises a PET transparent thin membrane with the single side coated with ITO, a liquid crystal thin membrane and a PET non-transparent black thinmembrane with the single side coated with ITO from top to bottom; the sides of conducting layers of the PET transparent thin membrane with the single side coated with the ITO and the PET non-transparent black thin membrane with the single side coated with the ITO are coated with insulating layers. Words written on the easy thermal erasing type liquid crystal membrane writing board can be completely removed under the lower voltage condition; the easy thermal erasing type liquid crystal membrane writing board can be packaged in rolling, and conveniently transported; the erasing and writing temperatures are low, the words can be reserved clearly at 0-4 DEG C, and the words written on the liquid crystal membrane writing board can be completely erased at the temperature between 45-60 DEG C.

Description

Technical field: [0001] The invention relates to the technical field of liquid crystal display, in particular to an easy-to-heat-erasable liquid crystal film writing board and a preparation method thereof. Background technique: [0002] Existing writing boards include blackboards, whiteboards, magnetic writing boards and the like. The traditional blackboard uses chalk to write, and when the blackboard is wiped, it is easy to generate dust, which makes teachers and students suffer greatly; the whiteboard is written with ink, and the ink will volatilize toxic and harmful gases, which will affect the health of the body; and the magnetic writing board, the handwriting is not clear enough, which affects the visual effect . [0003] After years of development, liquid crystal display devices have formed a huge industry and are widely used in various fields. The heat-erasable liquid crystal film writing board can be realized by a polymer-stabilized cholesteric liquid crystal displ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1333G02F1/137C09K19/46C08F220/18C08F222/20C08F222/14
CPCC08F220/18C09K19/46C08F220/1809C08F220/1811G02F1/13338G02F1/137C08F222/20C08F222/102C08F220/1804
Inventor 李清波王冬李辉李鹏郑磊
Owner 山东蓝贝易书信息科技有限公司
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