Manufacturing method of flexible display device and flexible display device

Abstract

The invention provides a manufacturing method of a flexible display device and the flexible display device. In the manufacturing method of the flexible display device of the present invention, the bending area of ​​the flexible display panel is first bound to the flexible circuit board, then the bending area of ​​the flexible display panel is bent toward the back of the flexible display panel, and then the flexible display panel Making the first protective adhesive layer on the front side of the flexible display panel corresponding to the bending area. The first protective adhesive layer is used to protect the wiring in the bending area, and at the same time, since the first protective layer is formed after the bending area is bent, compared with the prior art, the bending area of ​​the flexible display panel is reduced. Difficulty, reduce the stress on the bending area of ​​the flexible display panel during bending, and improve product quality.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method for manufacturing a flexible display device and the flexible display device. Background technique [0002] Organic Light Emitting Display (OLED) has self-illumination, low driving voltage, high luminous efficiency, short response time, high definition and contrast, nearly 180° viewing angle, wide operating temperature range, and can realize flexible display and With many advantages such as large-area full-color display, it is recognized by the industry as a display device with the most potential for development. [0003] OLED devices generally include: a substrate, an anode disposed on the substrate, a hole injection layer disposed on the anode, a hole transport layer disposed on the hole injection layer, a light emitting layer disposed on the hole transport layer, a An electron transport layer on the light emitting layer, an electron injection layer on the electron tr...

AI Technical Summary

Problems solved by technology

see figure 1 , is an existing flexible display device, including a flexible display panel 100' and a flexible printed circuit (Flexible Printed Circuit, FPC) 200' bound to the flexible display panel 100', and one end of the flexible display panel 100' is set There is a bending area 110', the flexible circuit board 200' is bound to the bending area 110' of the flexible display panel 100', and the bending area 110' of the flexible display panel 100' faces the flexible display panel 100'. The back is bent to reduce the width of the border of the display device and increase the screen-to-body ratio. In the prior art, before the bending region 110' of the flexible display panel 100' is bent, the front of the flexible display panel 100' is bent correspondingly. The folding area 110' is coated with a layer of protective adhesive layer 500' (such as UV-curable adhesive) and cured, and then the bending area 110' of the flexible display panel 100' and the protective adhesive layer 500' on it are placed on the flexible display panel. The back side of 100' is curved, and the protective adhesive layer 500' is provided to protect the bending area 110' of the flexible display panel 100'. However, the thickness of the protective adhesive layer 500' is smaller than that of the flexible substrate in the flexible display panel 100'. thicker, and it has a higher hardness after being cured, which greatly increases the difficulty of bending the bending region 110' of the flexible display panel 100', and increases the stress on the bending region 110' during bending. Damage to the wires within the bend region 110'

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