Thin-film packaging structure and display device

Abstract

The invention discloses a thin-film packaging structure and a display device, and belongs to the technical field of packaging of display devices. The thin-film packaging structure comprises a plurality of film layers, wherein the plurality of film layers coat the outer side of a to-be-packaged device and include alternately stacked inorganic layers and organic layers; in the plurality of film layers, the film layers at the inner sides and the outer sides of the plurality of film layers all are inorganic layers; in the plurality of film layers, an auxiliary spreading layer is formed between the first inorganic layer and the first organic layer; the hydrophilic-hydrophobic property of the auxiliary spreading layer is the same as that of the first organic layer; the first inorganic layer is the film layer, in contact with the to-be-packaged device, in the plurality of film layers; and the first organic layer is the organic layer in contact with the first inorganic layer. According to the thin-film packaging structure, the problem of relatively poor filling effects of the organic layers on cracks and defects in the inorganic layers is solved; improvement of the filling effects of the organic layers on the cracks and defects in the inorganic layers is achieved; and the thin-film packaging structure is suitable for packaging of the display device.

Description

technical field [0001] The invention relates to the technical field of display device packaging, in particular to a thin film packaging structure and a display device. Background technique [0002] Organic Light-Emitting Diode (English: Organic Light-Emitting Diode; abbreviation: OLED) devices have the advantages of active light emission, high brightness, full viewing angle, fast response speed, and flexible display, and are widely used in the display industry. However, water, oxygen and other components in the air have a great impact on the service life of OLED devices. Therefore, OLED devices can usually be packaged with a thin-film packaging structure to isolate OLED devices from water, oxygen and other components in the air, thereby prolonging the life of OLED devices. The service life of the OLED device, wherein, when the OLED device is packaged, the OLED device may be referred to as a device to be packaged. [0003] In the prior art, the thin film encapsulation struct...

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Problems solved by technology

[0005] SiNx materials are hydrophilic materials, and organic materials such as acrylates and epoxy resins are hydrophobic materials. Therefore, the hydrophilicity and hydrophobicity of organic layers formed of organic materials such as acrylates and epoxy resins are different from those of inorganic layers formed of SiNx materials. Due to the different hydrophilicity and hydrophobicity, IJPInk cannot be effectively spread on the inorganic layer. Therefore, the spreadability of IJPInk on the inorganic layer is poor, and the filling effect of the organic layer on the cracks and defects on the inorganic layer is poor.

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