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, a packaging layer and a protection film layer, and is characterized in that the light-emitting device is located at one side of the flexible substrate; the packaging layer is located at the side, which is opposite to the flexible substrate, of the light-emitting device; and the protection film layer is formed on at least one of the side, which is opposite to the light-emitting device, of the flexible substrate and the side, which is opposite to the light-emitting device, of the packaging layer, and the protection film layer is directly contacted with the flexible substrate and / or the packaging layer. According to the invention, the protection film layer is printed on the packaging layer and / or the flexible substrate, and the protection film layer is directly contacted with the packaging layer and / or the flexible substrate, so that a glue material is saved, the display panel is enabled to be thinner while the packaging layer and / or the flexible substrate are / is protected from being scratched, the bending resistance of the display panel is enabled to be higher, and the restoration performance of the display panel after bending is improved at the same time.

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] Such as figure 1 Shown is a schematic top view of a typical display panel protective film in the prior art, figure 2 for figure 1 The cross-sectional view in the A1'-A2' direction in the figure shows the cross-sectional structure of the display panel, including the flexible substrate 3', light-emitting device 2' and...

AI Technical Summary

Problems solved by technology

[0006] The film material of the protective film 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 first protective film 5' and the first adhesive material 7' is generally set thicker, which cannot meet the requirement of a total thickness of 20 μm. Even if the thickness of the protective film is forcibly reduced, the price will be high , increasing the difficulty of the bonding process; a thicker protective film will also make the protective film 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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