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
CN103293580AInactive Publication Date: 2013-09-11SICHUAN COC DISPLAY DEVICES
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SICHUAN COC DISPLAY DEVICES
Publication Date
2013-09-11
Estimated Expiration
Not applicable · inactive patent

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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.
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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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