Display panel, display device and manufacturing method of display panel

Abstract

The invention provides a display panel, a display device and a manufacturing method of the display panel. The display panel comprises a flexible substrate, a light-emitting device and a protective film layer, wherein the light-emitting device is positioned on one side of the flexible substrate; the protective film layer is positioned on the side, deviating from the light-emitting device, of the flexible substrate; the protective film layer is in direct contact with the flexible substrate; a plurality of bulges are arranged on the side, deviating from the flexible substrate, of the protective film layer. The invention provides a technical scheme that a lower protective film in the prior art is substituted, and the protective film layer is directly formed on the flexible substrate and is in direct contact with the flexible substrate, so that the display panel is thinned while the flexible substrate is protected from scratches; the plurality of bulges are arranged on one side of the protective film layer, so that the bending resistance of the display panel is stronger; on the other hand, the protective film layer adopts a single-layer structure directly formed on the flexible substrate in a printing manner, so that an adhesive material is omitted, the problem of matching between a film material and the adhesive material is not involved, and the restorability of the display panel after the display panel is bent is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display panel, a display device and a manufacturing method of the display panel that enhance the bending resistance of the display panel. Background technique [0002] A flexible display device is a deformable and bendable device made of soft materials. Flexible display devices in the prior art generally adopt OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) technology. This technology has the advantages of low power consumption, small size, light weight, and various display methods, so it is widely used in various electronic product. [0003] like figure 1 Shown is a schematic top view of the protective film layer of the display panel in the flexible display device, as shown in figure 2 for figure 1 A cross-sectional view in the direction A1'-A2', wherein the display panel includes a flexible substrate 3', a light emitting device 2' and an encapsulation ...

AI Technical Summary

Problems solved by technology

[0006] The film material of the protective film layer used today is generally polyethylene terephthalate (PET) base material, which is solid. In order to consider the problem of matching with the adhesive material and cost issues, such as image 3 As shown, the total thickness B' of the protective film layer 5' and the adhesive material 4' is generally set thicker, which cannot meet the requirement of a total thickness of 20um. The difficulty of the large lamination process; a thicker protective film layer will also make the protective film layer overall harder and difficult to bend, which will greatly reduce the bendability of the flexible display device; at the same time, the adhesive material is generally a viscoelastic body, which has Very strong recovery hysteresis, after being bent to a certain extent, it cannot return to its original shape, which will lead to the overall bending deformation of the flexible display device

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