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OLED packaging structure, protective film thereof and preparation methods of two

A technology of packaging structure and protective film, applied in chemical instruments and methods, semiconductor/solid-state device manufacturing, electronic equipment, etc., can solve the problems of affecting the packaging effect, contamination, and the release force of the protective film cannot be too high, so as to improve the yield. and production efficiency, the effect of avoiding dust contamination

Active Publication Date: 2019-02-01
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Problems solved by technology

[0003] However, because OLED is very sensitive to oxygen, water, etc., the penetration of oxygen, water, etc. into the OLED device will affect the lifespan. Therefore, the OLED device is usually packaged with a packaging structure to isolate water vapor and oxygen.
In order to carry out thin film encapsulation of OLED in the production process and meet the requirements of flexibility and thinness, it is necessary to laminate the protective film to OLED semi-finished products. For the subsequent process of tearing the film, it is required that the release force of the protective film should not be too high, otherwise the film encapsulation will be damaged. The quality of the layer affects the packaging effect, but the edge of the OLED is prone to be contaminated by dust or particles, which affects the yield of the product

Method used

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  • OLED packaging structure, protective film thereof and preparation methods of two
  • OLED packaging structure, protective film thereof and preparation methods of two
  • OLED packaging structure, protective film thereof and preparation methods of two

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Embodiment Construction

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of this application.

[0042] In the description of this application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise" and other directions or The positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of des...

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Abstract

The invention discloses an OLED packaging structure, a protective film thereof and preparation methods of the two. The protective film comprises a basal film and auxiliary films arranged in at least two opposite sides of the basal film and connected to the basal film, the auxiliary films are softer than the basal film, and when the protective film covers the OLED packaging structure, the basal film covers the top of the OLED packaging structure, and the auxiliary films covers at least the two opposite sides of the OLED packaging structure. The protective film can protect the OLED packaging structure effectively, the OLED packaging structure can be protected effectively, and avoid from dust pollution in the edge portion, and the yield rate and production efficiency are improved.

Description

Technical field [0001] This application relates to the field of display technology, in particular to a protective film of an OLED packaging structure, an OLED packaging structure and a preparation method. Background technique [0002] At present, OLED (Organic Light-Emitting Diode, organic light-emitting diode) is a new type of lighting and display technology with many excellent characteristics. Compared with traditional liquid crystal displays, OLED has self-luminous, wide viewing angle, high contrast, super With many advantages such as fast response rate and thinness and flexibility, OLED has broad application prospects in the display field. [0003] However, since OLEDs are very sensitive to oxygen, water, etc., the penetration of oxygen, water, etc. into the OLED device will affect its life. Therefore, OLED devices are usually packaged with a packaging structure to isolate water vapor and oxygen. In order to encapsulate the OLED in the production process and meet the needs of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/52H01L51/56
CPCH10K50/84H10K50/8445H10K71/00B32B7/12B32B27/08B32B2307/536B32B2457/206
Inventor 程家有吴建霖
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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