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Hot bending film, hot-bending-film fully laminated radian display screen and preparation methods thereof

A display and full lamination technology, applied in the direction of film/flake adhesives, coatings, paints containing biocides, etc., which can solve the problem of all-round protection of OLED screens and can not truly achieve full lamination of OLED screens , can not really achieve full fit and other problems to achieve the effect of improving the display effect

Inactive Publication Date: 2017-09-05
江苏旭泽技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Since all mobile phone cover glass manufacturers in the current market cannot make the size of each glass exactly the same in the manufacture of cover glass, each cover glass must have a certain processing tolerance, so the current market is currently produced and processed with the existing technology. All hot bending films for 2.5D, 3.0D, and 4.0D curved screens cannot be fully bonded, because the current hot bending film processing technology on the market is based on the average size of the mobile phone cover glass and the arc edge The edge shrinking process is carried out to process the mold in advance, and then use the "mold" with congenital defects to punch the protective film to the same size according to the size, and then perform the subsequent hot bending process on the punched protective film, so The size of the protective film produced by this process is the same. The protective film must be shrunk around in advance to meet the final use of the screen. To the all-round protection of the OLED screen

Method used

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  • Hot bending film, hot-bending-film fully laminated radian display screen and preparation methods thereof
  • Hot bending film, hot-bending-film fully laminated radian display screen and preparation methods thereof
  • Hot bending film, hot-bending-film fully laminated radian display screen and preparation methods thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0075] In this embodiment, the structure of the hot bending film is as figure 1 As shown, it includes a pressure-sensitive adhesive layer (1), a first PET resin film (2), a composite OCA adhesive layer (3), a second PET resin film (4) and a hardened layer (5) from bottom to top. The shrinkage rate of the PET resin film in the PET resin film layer is 0.5%.

[0076] Among them, the thickness of the pressure-sensitive adhesive layer is 20 μm, the thickness of the first PET resin film is 30 μm, the thickness of the composite OCA adhesive layer is -20 μm, the thickness of the second PET resin film is 20 μm, and the thickness of the hardened layer is 5 μm.

[0077] The pressure-sensitive adhesive layer is an organic silicon pressure-sensitive adhesive layer, and the raw materials of the composite OCA adhesive layer are silicone resin, a flexibilizer, a hardness regulator, a tackifier and an antistatic agent, a PET resin film and a pressure-sensitive adhesive layer, and The hardened...

Embodiment 2

[0080] In this embodiment, the structure of the hot bending film is as figure 1 As shown, it includes a pressure-sensitive adhesive layer (1), a first PET resin film (2), a composite OCA adhesive layer (3), a second PET resin film (4) and a hardened layer (5) from bottom to top. The shrinkage rate of the PET resin film in the PET resin film layer is 0.4%.

[0081] Among them, the thickness of the pressure-sensitive adhesive layer is 10 μm, the thickness of the first PET resin film is 50 μm, the thickness of the composite OCA adhesive layer is 15 μm, the thickness of the second PET resin film is 40 μm, and the thickness of the hardened layer is 10 μm.

[0082] The pressure-sensitive adhesive layer is an organic silicon pressure-sensitive adhesive layer, and the raw materials of the composite OCA adhesive layer are silicone resin, a flexibilizer, a hardness regulator, a tackifier and an antistatic agent, a PET resin film and a pressure-sensitive adhesive layer, and The hardened l...

Embodiment 3

[0085] In this embodiment, the structure of the hot bending film is as figure 1 As shown, it includes a pressure-sensitive adhesive layer (1), a first PET resin film (2), a composite OCA adhesive layer (3), a second PET resin film (4) and a hardened layer (5) from bottom to top. The shrinkage rate of the PET resin film in the PET resin film layer is 0.5%.

[0086] Among them, the thickness of the pressure-sensitive adhesive layer is 40 μm, the thickness of the first PET resin film is 20 μm, the thickness of the composite OCA adhesive layer is 10 μm, the thickness of the second PET resin film is 20 μm, and the thickness of the hardened layer is 3 μm.

[0087] The pressure-sensitive adhesive layer is an organic silicon pressure-sensitive adhesive layer, and the raw materials of the composite OCA adhesive layer are silicone resin, a flexibilizer, a hardness regulator, a tackifier and an antistatic agent, a PET resin film and a pressure-sensitive adhesive layer, and The hardened ...

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Abstract

The invention provides a hot bending film, a hot-bending-film fully laminated radian display screen and preparation methods thereof. The hot bending film successively comprises a pressure-sensitive glue layer, a PET resin film layer and a hardening layer from bottom to top, wherein the shrinkage rate of the PET resin film layer is 0.5% or less. The hot-bending-film fully laminated radian display screen is prepared from the hot bending film. The hot bending film prepared by using the preparation method of the invention is consistent in integral hot bending shrinkage rate, accordingly avoids phenomena such as film warping after hot bending, shaping failure and rebounding, is easy to process, can be fully laminated on the radian display screen, truly realizes full lamination on the radian display screen and all-directional protection, and well guarantees the radian display screen exerts performance and has improved display effects.

Description

technical field [0001] The invention belongs to the technical field of protective films, and relates to a hot bending film and a fully laminated curved display screen with the hot bending film and a preparation method thereof. Background technique [0002] Since all mobile phone cover glass manufacturers in the current market cannot make the size of each glass exactly the same in the manufacture of cover glass, each cover glass must have a certain processing tolerance, so the current market is currently produced and processed with the existing technology. All hot bending films for 2.5D, 3.0D, and 4.0D curved screens cannot be fully bonded, because the current hot bending film processing technology on the market is based on the average size of the mobile phone cover glass and the arc edge The edge shrinking process is carried out to process the mold in advance, and then use the "mold" with congenital defects to punch the protective film to the same size according to the size,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09D175/14C09D5/16C08J7/04C08L67/02
CPCC09D175/14C09D5/1662C08J2367/02C08J2475/14C09J2467/006C09J2483/00C08J7/0427C09J2301/162C09J2301/122C09J2301/302
Inventor 金国华
Owner 江苏旭泽技术有限公司
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