Flexible display panel and manufacturing method thereof, and display device

Abstract

The invention discloses a flexible display panel and a manufacturing method thereof, and a display device. A groove is formed in a non-display region of a flexible substrate; the bottom of a first barrier dam is embedded into the first groove; and a packaging membrane layer covering a plurality of organic electroluminescent structures and a second barrier dam is arranged in a region limited by the first barrier dam. Therefore, interfaces in different directions are increased by using the first barrier dam so as to block an extension direction of a crack, so that extension of the crack caused at the edge of the flexible display panel to the display region can be prevented. Moreover, the bottom of the first barrier dam is embedded into the first groove of the flexible substrate and the first barrier dam in the first groove and the flexible substrate form interfaces in different directions, so that the extending direction of the crack can be blocked based on the interfaces; and thus extending of the crack to the display region can be prevented, so that an objective of reducing the opportunity of entrance of water and oxygen into the display region can be achieved and thus the influence on the organic electroluminescent structure by water and oxygen can be reduced. Therefore, the service life of the flexible display panel can be prolonged.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a flexible display panel, a manufacturing method thereof and a display device. Background technique [0002] Currently, OLED (Organic Light-Emitting Diode, organic electroluminescence) devices are considered to be the flat panel display devices with the most development potential, and at the same time considered to be the display technology most likely to be made into flexible display devices. [0003] Existing flexible display panels generally include: a flexible substrate, a barrier dam is provided in a non-display area of ​​the flexible substrate, an organic electroluminescent structure located in the display area of ​​the flexible substrate, and a dam covering the organic electroluminescent structure and the barrier dam. Encapsulation film layer, the encapsulation film layer is generally composed of organic and inorganic multi-layer stacks; the inorganic layer realizes the f...

AI Technical Summary

Problems solved by technology

[0004] However, when the existing flexible display panel is cut or bent or curled during subsequent use, due to stress, cracks are prone to occur on the edge of the flexible display panel, that is, near the cutting surface. When the crack extends to the display area, water and oxygen will pass through. Cracks enter the display area and affect the service life of the flexible display panel

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