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LCD hard type protection film

A technology of liquid crystal display and protective film, which is applied in the field of composite film, which can solve the problems of small surface friction coefficient, lack of support force, long transportation time, etc., and achieve the effect of preventing scratches, strong support force and soft surface

Active Publication Date: 2008-10-08
SUZHOU JINFU TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In terms of material, the protective film can be simply divided into hard and soft. The typical representative of hard protective film is SKC SH94 produced in Korea. The surface friction coefficient of this product is small. Therefore, during transportation, if there is a small The particles are sandwiched between the protective film and the liquid crystal display. Under bumpy conditions, the small particles will move relative to the liquid crystal display, thus scratching the liquid crystal display. The typical representative of the soft protective film is the PC produced by Mitsubishi, Japan. This product is relatively Soft, but lacks some support
[0004] Moreover, the transportation process usually takes a long time, generally takes 72 to 96 hours, the temperature is high, about 60°C, and the humidity is high, about 70%. If the design of the protective film is not conducive to the ventilation of the LCD surface, it will cause water vapor to accumulate on the The surface of the liquid crystal display, thus affecting the display effect of the display

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. If figure 1 As shown, a PET film with a thickness of 0.125 cm is selected to construct a PET layer 1, and a layer of glue with a thickness of 0.01 cm is coated on the PET film to form an adhesive layer 2;

[0025] 2. If figure 2 , 3 As shown in and 4, the PE textured film with antistatic function is selected, the thickness of the PE layer 3 of the PE textured film is 0.03cm, the thickness of the adhesive layer 4 of the PE textured film is 0.02cm, and the convexity of the PE textured film is 0.03cm. The vertical distance between the top of the 6 and the bottom of the hole is 0.02cm;

[0026] 3. Composite coating of PET film with glue layer and PE textured film with roller machine, the composite pressure is 7kg / m 2 , constituting the hard protective film of the liquid crystal display, after rolling and laminating, the surface of the PE layer of the hard protective film has a raised structure 7, such as Figure 5 shown;

[0027] 4. Face the PE film of the hard pro...

Embodiment 2

[0029] 1. If figure 1 As shown, choose 0.075cm thick PET film;

[0030] 2. If figure 2 , 3 As shown in and 4, select the PE textured film, the thickness of the PE layer is 0.04cm, the thickness of the adhesive layer is 0.025cm, and the depth of the cavity is 0.025cm;

[0031] 3. Use a coating machine to coat a layer of glue with a thickness of 0.008cm on the PET film, and then use a compound roller to compound the glue-coated PET film and PE textured film, and the compound pressure is 6kg / m 2 , constituting the hard protective film of the liquid crystal display, after rolling and laminating, the surface of the PE layer of the hard protective film has a raised structure, such as Figure 5 shown;

[0032] 4. Face the PE film of the hard protective film to the liquid crystal display and cover the display surface of the liquid crystal module, and use adhesive tape to fix the periphery of the hard protective film to protect the liquid crystal display and prevent the display su...

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Abstract

The present invention relates to a hard protective film applied in the protection of the liquid crystal display, including a layer of polyethylene glycol terephthalate layer, and one layer of polyethylene cob-webbing film, wherein, the liquid crystal display hard protective film is formed by mounting an adhesive layer on the surface of the polyethylene glycol terephthalate layer, and then cementing and compounding with the cob-webbing surface of the polyethylene cob-webbing film. The hard protection film has strong anchorage force and large friction coefficient, when the liquid crystal display hard protective film is used to protect the liquid crystal display, the PE film surface of the hard protective film faces to the liquid crystal display and overlays the display surface of the liquid crystal module, the perimeter of the hard protection film is fixed by the adhesive tape, which can prevent the liquid crystal display from being scratched and meanwhile has strong ventilation property, high temperature and high humidity resistance, and electrostatic resistance.

Description

technical field [0001] The invention relates to a composite film, in particular to a hard protective film applied to protect liquid crystal displays. Background technique [0002] Liquid crystal displays are produced by laminating various optical components such as glass substrates, liquid crystals, polarizers (films), phase plates (films), anti-reflection films, and the like, with stainless steel metal plates and other similar metals. The formed fixed frame fixes the peripheral periphery, which is called "groove", thereby constituting the liquid crystal module, which is installed together with other components and the resulting structure is put into the casing. In order to prevent the liquid crystal module from being attached and polluted by dust or other dirt during assembly and product delivery, a surface protective film (sheet) is generally covered on the display part of the liquid crystal display. The display surface is covered with a surface protective adhesive film (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13G12B17/08B32B7/12B32B27/36B32B27/32B32B3/30
Inventor 马慧军
Owner SUZHOU JINFU TECH
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