Liquid crystal composite film, preparation method thereof and liquid crystal writing board

A composite film and liquid crystal technology, applied in instruments, optics, nonlinear optics, etc., can solve the problems of single color, poor contrast, slow response speed, etc. Effect

Pending Publication Date: 2021-07-16
XIJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the writing board films on the market still have some shortcomings such as slow response speed, single color, and poor contrast. Therefore, how to improve the performance of the liquid crystal writing board film is an urgent scientific problem to be solved in the combination of industry, education and research.

Method used

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  • Liquid crystal composite film, preparation method thereof and liquid crystal writing board
  • Liquid crystal composite film, preparation method thereof and liquid crystal writing board
  • Liquid crystal composite film, preparation method thereof and liquid crystal writing board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] as attached figure 1 As shown, this embodiment provides a kind of two-color / double-layer liquid crystal composite film, comprises the first layer PET film 12 that is plated with ITO conductive layer on one side connected successively from top to bottom, the first layer of polymer liquid crystal composite layer 11. The second layer of PET film 10 coated with ITO conductive layer on both sides, the second layer of polymer liquid crystal composite layer 7, and the third layer of thin glass layer 5 with insulating layer and TFT layer on one side.

[0064] Specifically, the thickness of the first layer of PET film is 25 μm, the light transmittance is 96%, the transverse heat shrinkage rate is 0.05%, the longitudinal heat shrinkage rate is 0.05%, the resistance value of the ITO conductive layer is 15Ω, and the light transmittance 96%.

[0065] The upper surface of the first layer of PET film (that is, the first base layer) has a hardened layer with anti-ultraviolet function....

Embodiment 2

[0098] This embodiment provides a kind of two-color / double-layer liquid crystal composite film, comprising the first layer of PET film with one side coated with ITO conductive layer connected successively from top to bottom, the first layer of polymer liquid crystal composite layer, double-sided coated The second layer of PET film with ITO conductive layer, the second layer of polymer liquid crystal composite layer, the third layer of thin glass layer with insulating layer and TFT layer on one side.

[0099] The thickness of the first layer of PET film is 180 μm, the light transmittance is 86%, the transverse heat shrinkage rate is 3%, the longitudinal heat shrinkage rate is 3%, the resistance value of the ITO conductive layer is 100Ω, and the light transmittance is 89%. .

[0100] The upper surface of the first layer of PET film has a hardened layer with anti-ultraviolet function. The hardness of the hardened layer is 10H, and the ultraviolet absorber UV-405 is added, and th...

Embodiment 3

[0133] This embodiment provides a kind of two-color / double-layer liquid crystal composite film, comprising the first layer of PET film with one side coated with ITO conductive layer connected successively from top to bottom, the first layer of polymer liquid crystal composite layer, double-sided coated The second layer of PET film with ITO conductive layer, the second layer of polymer liquid crystal composite layer, the third layer of thin glass layer with insulating layer and TFT layer on one side.

[0134] The thickness of the first layer of PET film is 102.5 μm, the light transmittance is 91%, the transverse heat shrinkage rate is 1.5%, the longitudinal heat shrinkage rate is 1.5%, the resistance value of the ITO conductive layer is 57.5Ω, and the light transmittance rate is 1.5%. 92%.

[0135] The upper surface of the first layer of PET film has a hardened layer with anti-ultraviolet function. The hardness of the hardened layer is 6.5H, and the ultraviolet absorber UV-928...

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Abstract

The invention is applicable to the technical field of liquid crystal materials and display, and provides a liquid crystal composite film, a preparation method thereof and a liquid crystal writing board. The liquid crystal composite film comprises a first base layer with a conductive layer arranged on a single side; a second base layer with conductive layers are arranged on the two sides; a first polymer liquid crystal composite layer arranged between the first base layer and the second base layer; a third base layer with an insulating layer and a transistor layer arranged on one side, close to the second base layer; and a second polymer liquid crystal composite layer arranged between the second base layer and the third base layer; wherein the first polymer liquid crystal composite layer and the second polymer liquid crystal composite layer respectively comprise two chiral compounds with different chirality. According to the technical scheme, the liquid crystal composite film can reflect light of different colors, the reflection wave width of the film is increased, the rapid and sufficient polymerization can be achieved, the polymerization time is greatly shortened, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of liquid crystal materials and displays, and in particular relates to a liquid crystal composite film, a preparation method thereof, and a liquid crystal writing board. Background technique [0002] In recent years, liquid crystal display technology has been developed rapidly. Due to its dust-free writing, environmental protection and health, clear handwriting, smooth writing and many other advantages, the liquid crystal writing board has received widespread attention from people, and has been widely used in teaching, painting, conferences and other fields. . Liquid crystal tablet film is the core component of liquid crystal tablet, and its performance directly affects the experience of using the tablet. [0003] However, writing board films on the market still have some shortcomings such as slow response speed, single color, and poor contrast. Therefore, how to improve the performance of liquid crystal wr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1337G02F1/137C08J7/046C08L67/02
CPCG02F1/133711G02F1/133723G02F1/133788G02F1/137C08J7/046C08J2367/02
Inventor 王冬陈先亮赵玉真苗宗成贺泽民赵阳张永明
Owner XIJING UNIV
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