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Barrier film and preparation method thereof

A technology of barrier film and film layer, applied in the field of barrier film and its preparation, can solve the problems of inability to meet the requirements of rapid development of OLED, general water vapor and oxygen isolation, and achieve excellent water vapor barrier, excellent oxygen and water vapor barrier, excellent barrier properties. The effect of the blocking effect

Pending Publication Date: 2021-02-05
ZHONGSHAN DONGYI HIGH TECH MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the existing barrier films have relatively general barrier properties to water vapor and oxygen, which cannot meet the requirements of the rapid development of OLEDs.

Method used

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  • Barrier film and preparation method thereof
  • Barrier film and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0031] Such as figure 1 As shown, a barrier film sequentially includes a PEN film layer 100, a SPA resin layer 200, a PC film layer 300, an adhesive layer 400, and a protective film layer 500, wherein the SPA resin layer 200 is made by using OCA optical glue to bond the SPA resin It is cured between the PEN film layer and the PC film layer. The average particle size of the SPA resin is 0.5μm and the specific surface area is 5m 2 / g, the glue in the SPA resin layer 200 and the adhesive layer 400 is OCA optical glue, the protective film layer 500 is a PET release film, wherein the thickness of the PEN film layer 100 is 10 μm, and the thickness of the SPA resin layer 200 is 10 μm , the thickness of the PC film layer 300 is 15 μm, the thickness of the adhesive layer 400 is 5 μm, and the thickness of the protective film layer 500 is 15 μm.

[0032] The preparation method of above-mentioned barrier film, comprises the following steps:

[0033] (1) Apply OCA optical glue mixed with...

Embodiment 2

[0038] Compared with Example 1, the difference is that the average particle diameter of the SPA resin is 20 μm, and the specific surface area is 25 μm 2 / g, the thickness of the PEN film layer is 25 μm, the thickness of the SPA resin layer is 15 μm, the thickness of the PC film layer is 35 μm, the thickness of the adhesive layer is 10 μm, and the thickness of the protective film layer is 20 μm.

Embodiment 3

[0040] Compared with Example 1, the difference is that the average particle diameter of the SPA resin is 12 μm, and the specific surface area is 16 μm 2 / g, the thickness of the PEN film layer is 20 μm, the thickness of the SPA resin layer is 12 μm, the thickness of the PC film layer is 25 μm, the thickness of the adhesive layer is 6 μm, and the thickness of the protective film layer is 16 μm.

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Abstract

The invention discloses a barrier film, which sequentially comprises a PEN film layer, an SPA resin layer, a PC film layer, an adhesive layer and a protective film layer. The barrier film has excellent water vapor and oxygen barrier performance, so that the service life of the OLED can be effectively prolonged.

Description

technical field [0001] The invention belongs to the field of film technology, in particular to a barrier film and a preparation method thereof. Background technique [0002] With the rapid development of the mobile phone industry and display technology, traditional LCD technology is slowly being replaced by OLED technology. Compared with LCD, OLED has better display effect and lower power consumption, and at the same time makes the screen flexible and foldable. became possible. However, compared with LCD, OLED is extremely sensitive to water vapor. In order to ensure the luminous efficiency and service life of OLED, OLED must pay great attention to the isolation of water vapor and oxygen during the packaging process. The isolation performance of barrier film against water vapor and oxygen is directly related to the performance of OLED. service life. [0003] At present, the existing barrier films have relatively general barrier properties to water vapor and oxygen, which c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/29C09J7/30
CPCC09J2203/318C09J7/29C09J7/30
Inventor 陈建平徐海斌
Owner ZHONGSHAN DONGYI HIGH TECH MATERIAL
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