CN211570522U

CN211570522U - Process protection film for LCD module backboard

Info

Publication number: CN211570522U
Application number: CN201922387242.1U
Authority: CN
Inventors: 徐凌; 华小龙; 郑子能
Original assignee: Weisi New Material Taizhou Co ltd
Current assignee: Weisi New Material Taizhou Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-09-25
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a processing procedure protection film for LCD module backplate relates to protection film technical field, including multilayer printing substrate layer, glue film and from the type layer, the glue film is the sub-sensitive glue film of the type polyacrylate that glues a little. The application provides a protection film adopts transparent ultra-thin PET substrate, the single face corona, the surface reaches the value and reaches more than 70mN/m, and there is the printing ink in corona face printing, and at the solvent-resistant insulating ink of printing ink surface printing, this printing substrate, adopt extremely thin PET substrate, and colored printing has been carried out, make this substrate remain the pliability, colored processing has been carried out again, can effectively prevent to lead to leaking card and material difference because of the colour problem, and replaced traditional colored membrane completely and added the scheme of differentiation double sticky tape laminating, when guaranteeing not damaged and polluting in the whole processing procedure of LCD module, the cross cutting factory processing degree of difficulty has also been reduced, thereby very big reduction the cost of LCD module backplate protection scheme.

Description

Process protection film for LCD module backboard

Technical Field

The utility model relates to a protection film technical field, in particular to processing procedure protection film for LCD module backplate.

Background

In the process of turnover or transportation of the LCD module, in order to prevent the surface of the back plate of the LCD module from being polluted or damaged, the protective film is required to be attached to the back surface of the LCD module for protection, and after the next manufacturing procedure is carried out, the protective film is stripped from the back plate of the LCD module and removed. Because the LCD module backplate is the metal material, when the LCD module is transporting and the turnover in-process, need guarantee that this process is accomplished smoothly and LCD module metal surface is not damaged and is polluted, so the contamination resistance, the structure and the colour of the key design protection film of demand to this promotes the yield. Because LCD module backplate is the metal material, very easily appear polluting, the bonding scheduling problem, so the traditional way is colored PET film, then laminates a width for the two-sided sticky tape of 1mm adhesive force differentiation on the both sides of film to reduce the area that probably pollutes, but this two-sided sticky tape of adhesive force differentiation of both sides is monopolized for the tape producer abroad at present, and domestic has not had the scheme of complete replacement temporarily. The adhesive force differentiation double-sided tape that uses in the current scheme of LCD module backplate protection film needs the precision to cut and the laminating, because the width 1 mm's double-sided tape cuts the degree of difficulty very big to it is lower and the cost is high to lead to this product yield.

SUMMERY OF THE UTILITY MODEL

For the LCD module backplate protection scheme technology that overcomes existence among the prior art is complicated, the processing degree of difficulty is big, and the problem of pollution, bonding failure very easily appears in 1mm cross cutting double-sided tape of broad width, the utility model provides a processing procedure protection film for LCD module backplate.

The specific technical scheme is as follows:

the utility model provides a processing procedure protection film for LCD module backplate, includes from last multilayer printing substrate layer, glue film and the type layer that sets gradually extremely down, multilayer printing substrate layer includes from last transparent PET membrane, colored printing ink layer and the insulating printing ink layer that sets gradually extremely down, the glue film is the sub-sensitive glue film of the type polyacrylate that glues a little.

Preferably, the surface of the transparent PET film is provided with a corona surface.

Preferably, the surface dyne value of the transparent PET film exceeds 70 mN/m.

Preferably, the thickness of the transparent PET film is 2-12 μm.

Preferably, the release layer is a single-silicon PET release film.

Compared with the prior art, the utility model following beneficial effect has:

(1) the application provides a processing procedure protection film for LCD module backplate adopts very thin PET substrate to colored printing has been carried out, makes this substrate remain the pliability, has carried out colored processing again, can effectively prevent to lead to leaking card and material difference because of the colour problem.

(2) This application adopts the direct laminating of one deck protection film on LCD module metal back plate, has replaced traditional coloured membrane completely and has added the scheme of differentiation double-sided tape laminating, when not damaged and polluting in guaranteeing the whole processing procedure of LCD module, has also reduced the cross cutting factory and has processed the degree of difficulty to very big reduction the cost of this LCD module backplate protection scheme.

Drawings

Fig. 1 is a schematic structural view of the process protection film for the LCD module backplane of the present invention.

In the figure, 1-transparent PET film, 2-colored ink layer, 3-insulating ink layer, 4-adhesive layer and 5-release layer.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The utility model discloses a processing procedure protection film for LCD module backplate, as shown in figure 1, include from last multilayer printing substrate layer, glue film 4 and from type layer 5 that sets gradually extremely down, multilayer printing substrate layer includes from last transparent PET membrane 1, colored printing ink layer 2 and the insulating printing ink layer 3 that sets gradually extremely down, and 1 surface of transparent PET membrane is provided with the corona face. The surface dyne value of the transparent PET film 1 was more than 70 mN/m. The thickness of the transparent PET film 1 is 2-12 μm. The printing substrate is characterized in that the transparent ultrathin polyethylene terephthalate (PET) substrate is corona-coated on a single surface, the surface dyne value reaches more than 70mN/m, colored ink is printed on the corona surface, and solvent-resistant insulating ink is printed on the surface of the ink. The printing ink of the substrate can be one of various colors such as blue, red, yellow, orange, pink and the like for convenience of identification. The insulating solvent-resistant ink printing layer has the ethyl acetate and toluene resistance, and can effectively reduce the influence of color ink on the slightly-adhered polyacrylate pressure-sensitive adhesive layer 4. The adhesive layer 4 in this application is a slightly adhesive polyacrylate pressure-sensitive adhesive layer 4. The release layer 5 is a single-silicon PET release film, is specially selected from the release force, has stable structure and good weather resistance, and ensures the process feasibility of the product.

The process protective film for the LCD module can be manufactured by a conventional method. There may be a doctor blade coating, roll coating, gravure coating, slot extrusion coating, spray coating, die coating, etc. The utility model discloses in, preferred slit formula extrusion coating or slightly concave coating, further preferred slightly concave coating, slightly concave coating process possesses splendid thickness stability, outstanding outward appearance.

The technical problem solved by the utility model is to provide a protective film, which has stable viscosity (low climbing), low pollution, can be made into various colors and effectively reduces the product cost. The protective film is simple in structure, only one-time die cutting is needed in a die cutting factory, and the special structural design has excellent fitness. This application adopts the direct laminating of one deck protection film on LCD module metal back plate, has replaced traditional coloured membrane completely and has added the scheme of differentiation double-sided tape laminating, when not damaged and polluting in guaranteeing the whole processing procedure of LCD module, has also reduced the cross cutting factory and has processed the degree of difficulty to very big reduction the cost of this LCD module backplate protection scheme.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. The utility model provides a processing procedure protection film for LCD module backplate which characterized in that: include from last multilayer printing substrate layer, glue film (4) and the release layer (5) that sets gradually extremely down, multilayer printing substrate layer includes from last transparent PET membrane (1), colored printing ink layer (2) and the insulating printing ink layer (3) that sets gradually extremely down, glue film (4) are sub-sensitive glue layer (4) of the type of gluing a little polyacrylate.

2. The process protection film for the LCD module back plate of claim 1, wherein: the surface of the transparent PET film (1) is provided with a corona surface.

3. The process protection film for the LCD module back plate as claimed in claim 2, wherein: the surface dyne value of the transparent PET film (1) exceeds 70 mN/m.

4. The process protection film for the LCD module back plate as claimed in claim 3, wherein: the thickness of the transparent PET film (1) is 2-12 mu m.

5. The process protection film for the LCD module back plate as claimed in claim 4, wherein: the release layer (5) is a single-silicon PET release film.