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Filter film and display screen including same

A filter film and fluorescence technology, applied in the field of optical film materials, can solve the problems of discoloration, reduce the reliability of the filter film, etc., and achieve the effect of improving color

Inactive Publication Date: 2013-09-11
SICHUAN COC DISPLAY DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to provide a PET base material for a filter film, a preparation method and a filter film and a plasma display screen including the same, so as to solve the pressure of various chemical substances existing in the filter film in the prior art. Discoloration in the sensitive adhesive layer, reducing the resistance of the filter film and other technical problems

Method used

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  • Filter film and display screen including same
  • Filter film and display screen including same
  • Filter film and display screen including same

Examples

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preparation example Construction

[0026] According to another aspect of the present invention, there is provided a method for preparing any one of the above PET substrates, comprising the following steps: 1) heating the transparent PET material to obtain a molten PET material; 2) mixing inorganic pigments, organic pigments and One or more dyes are added to the melted PET obtained in step 1); 3) dispersant and stabilizer are added to the product in step 2), and mixed evenly to obtain a colored PET substrate. The transparent PET substrate used in the preparation method is a commercially available PET substrate, and its preparation method is well known to those skilled in the art. Heat the commercially available transparent PET material, and when it becomes molten, add one or more of inorganic pigments, organic pigments and dyes, and also need to add some dispersants, such as white oil, DOP, turpentine , phosphates, glyceryl palmitate, glyceryl stearate and dibutyl ester, in addition, it is necessary to add a sta...

Embodiment 1

[0034] Heat 99% transparent PET material (the PET material is a commercially available transparent material) to a molten state, add 0.1% carbon black to it, stir well and add 0.7% glycerol palmitate as a dispersant, 0.2% CaSt is used as a stabilizer, the above-mentioned substances are fully mixed, and the colored PET film is pulled out. An AR layer is deposited on the obtained colored PET film, and a pressure-sensitive adhesive PSA layer is deposited on the lower surface to obtain a final product filter film.

Embodiment 2

[0036] Heat 87% of the transparent PET material (the PET material is a commercially available transparent material) to a molten state, add 8% of quinophthalone and 2% of oxinone, stir well and add 2.0% of turpentine As a dispersant, 1.0% MgSt as a stabilizer, mix the above substances well, and pull out the colored PET film. A layer of EMI function layer is deposited on the obtained colored PET film, and a pressure-sensitive adhesive PSA layer is deposited on the lower surface to obtain the final product filter film.

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Abstract

The invention discloses a filter film and a plasma display screen including the same. The filer film comprises one or more polyethylene terephthalate (PET) structural units. Each PET structural unit comprises a PET base material, a functional layer arranged on the upper surface of the PET base material and a pressure-sensitive adhesive layer arranged on the lower surface of the PET base material, wherein the pressure-sensitive adhesive layer contains a near infrared ray blocking function material and / or a neon yellow light blocking function material. The PET base material contains inorganic pigment, organic pigment or dyestuff, wherein the inorganic pigment is a metallic oxide, sulfide, sulfate, chromate or carbon black, the organic pigment is azo pigment, phthalocyanine pigment, heterocyclic pigment or fluorescent pigment, and the dyestuff is a pyrazolone derivative, fluorescent polycyclic dyestuff, azo fluorescent reduced dyestuff, an anthraquinone reduction derivative or fluorescent polycyclic dyestuff. A color modulation function material is added into the PET base material rather than the pressure-sensitive adhesive layer, so that a color change phenomenon caused by chemical reaction of chemical substance in the pressure-sensitive adhesive layer and the color modulation function material is avoided.

Description

[0001] This application is based on the parent case of "the application date is December 31, 2011, the application number is 201110457636.5, and the invention name is PET substrate for filter film, preparation method, filter film and display screen including it" divisional application. technical field [0002] The invention belongs to the field of optical film materials, and in particular relates to a PET base material used for a light filter film, a preparation method, a light filter film and a plasma display screen comprising the same. Background technique [0003] Generally speaking, filter devices are divided into filter glass, filter plate, or filter film. Among them, the filter film has the characteristics of lightness, thinness and low cost, and is more and more widely used. Especially in the production of plasma display equipment and other display equipment, the filter film device is indispensable. [0004] Filter films generally have the functions of shielding elec...

Claims

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Application Information

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IPC IPC(8): G02B5/22G02B1/04B32B27/36H01J11/44C08L67/02
Inventor 王冲张小芳
Owner SICHUAN COC DISPLAY DEVICES
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