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Liquid crystal handwriting diaphragm, preparation method thereof and liquid crystal handwriting board

A liquid crystal handwriting and membrane technology, applied in optics, instruments, electrical digital data processing, etc., can solve the problems of the thickness and uniformity of the liquid crystal layer, and the abnormal writing performance of the liquid crystal tablet.

Inactive Publication Date: 2020-06-09
东莞市宝立创电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the deformation is restored, the spacer cannot return to its original position, resulting in no spacer in the position, so that the thickness and uniformity of the liquid crystal layer are affected; or for large-size liquid crystal tablet, most of them are hung on the wall On the above, due to the gravity of the liquid crystal itself, it will flow downward, causing the spacers to reunite, which will affect the thickness and uniformity of the liquid crystal layer, and eventually cause abnormal writing performance of the liquid crystal tablet.

Method used

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Examples

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Effect test

preparation example Construction

[0037] In the present invention, the preparation method of the first conductive layer and / or the second conductive layer preferably independently comprises the following steps:

[0038] mixing the dispersion liquid of the conductive material and the spacer to obtain a coating liquid;

[0039] Applying the coating liquid to the surface of the substrate and curing it to obtain the first conductive layer and / or the second conductive layer;

[0040] The substrate is a first substrate and / or a second substrate.

[0041] In the present invention, a dispersion liquid of a conductive material is mixed with a spacer to obtain a coating liquid. In the present invention, the dispersion solvent in the dispersion liquid of the conductive material is preferably absolute ethanol, isopropanol or deionized water. In the present invention, the mass concentration of the conductive material in the dispersion of the conductive material is preferably 1‰-50%, more preferably 5‰-10%, most preferabl...

Embodiment 1

[0060] Use Mitsubishi Chemical polyester SM07-X12 as the first substrate and the second substrate with a black base material model AG-LWB-B01 (thicknesses are 125 μm and 188 μm respectively);

[0061] Mix 500g of Clevios PH 1000 (pedot:pss solution) and 4g of spacer (5μm, TN-500 microspheres from Zhenjiang Aitiao Company) for 24 hours under stirring at a mass ratio of 500:4 to obtain a coating solution ;

[0062] Using dimple coating, apply the coating solution (coating speed: 20m / min) to the surface of the first substrate (the thickness of the obtained wet film is 15μm), and cure (140°C, 2min) , obtaining the first substrate with the first conductive layer (the area ratio of the spacer to the first conductive layer is 0.0013:1);

[0063] Using the mode of dimple coating, Clevios PH 1000 (pedot: pss solution) is coated (coating speed is 20m / min) to the surface of the second substrate (the thickness of the obtained wet film is 15 μm), and curing (140 °C, 2min), to obtain the ...

Embodiment 2

[0067] Use Mitsubishi Chemical polyester SM07-X12 as the first substrate and the second substrate with a black base material model AG-LWB-B01 (thicknesses are 125 μm and 188 μm respectively);

[0068] With a mass ratio of 500:4, under stirring conditions, 500g CST-SP-P2002 nano-silver solution and 4g spacer (4μm, GS-400 microspheres) were mixed for 24h to obtain a coating solution;

[0069] Using dimple coating, apply the coating solution (coating speed: 15m / min) to the surface of the first substrate (the thickness of the obtained wet film is 18μm), and cure (150°C, 1min) , obtaining the first substrate with the first conductive layer (the area ratio of the spacer to the first conductive layer is 0.002:1);

[0070] Using the method of dimple coating, apply CST-SP-P2002 nano-silver solution (coating speed is 15m / min) to the surface of the second substrate (the thickness of the obtained wet film is 18μm), and cure (150°C , 1min), to obtain the second substrate with the second c...

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Abstract

The invention relates to the technical field of liquid crystal handwriting boards, in particular to a liquid crystal handwriting diaphragm, a preparation method thereof and a liquid crystal handwriting board. The liquid crystal handwriting diaphragm comprises a first substrate, a first conductive layer, a liquid crystal layer, a second conductive layer and a second substrate, the first conductivelayer or the second conductive layer comprises a conductive material layer and spacers uniformly fixed in the conductive material layer. According to the invention, the spacers are uniformly fixed onthe conductive layer through the conductive material layer, so that the problem of abnormal function of the handwriting board caused by non-uniform dispersion of the spacers in the handwriting diaphragm due to spacer movement of the spacers caused by writing, thermal contraction and the like is avoided while the spacers are ensured to play a supporting role.

Description

technical field [0001] The invention relates to the technical field of liquid crystal handwriting boards, in particular to a liquid crystal handwriting film, a preparation method thereof, and a liquid crystal handwriting board. Background technique [0002] At present, in the production and preparation process of the existing liquid crystal tablet, the cholesteric liquid crystal, the spacer and the prepolymer material are generally mixed evenly, and then sandwiched between two plastic substrates with conductive materials by coating. . Due to the thermal shrinkage of the plastic substrate, the upper and lower plastic substrates will cause the spacers to flow due to short-term deformation. However, after the deformation is restored, the spacer cannot return to its original position, resulting in no spacer in the position, so that the thickness and uniformity of the liquid crystal layer are affected; or for large-size liquid crystal tablet, most of them are hung on the wall O...

Claims

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Application Information

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IPC IPC(8): G02F1/1333G02F1/1343G02F1/1339G06F3/041
CPCG02F1/13338G02F1/13392G02F1/13439G06F3/041
Inventor 夏亮吴飞袁玲玉沈隆军
Owner 东莞市宝立创电子科技有限公司
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