Display panel and preparation method thereof, and display device with same

Abstract

The invention relates to a display panel and a preparation method thereof, and a display device. A barrier in the related display panel comprises an upper section and a lower section extending reversely with respect to the upper section; a cambered surface is formed at the end part, extending to the bottom of the groove, of the lower section; the display panel also comprises an opening area; the barrier dam is arranged around the opening area, and an included angle of more than 90 DEG is formed between the side wall and the bottom of the opening area. According to the display panel provided bythe embodiment of the invention, the moisture collection and diffusion area is significantly enlarged via the structure that the end part of the lower section is the cambered surface; meanwhile the barrier dam deeply stretches into a barrier layer, so that the invalid packaging caused by laser drilling is avoided through improving the forming mode of the opening area, and the water oxygen entrance path is further prolonged; the technology is simple, the cost is low, the water oxygen is effectively isolated, and the packaging effect is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display panel, a manufacturing method thereof, and a display device having the same. Background technique [0002] The currently widely used OLED display device is a display device that uses the self-luminescence principle of organic electroluminescent materials to realize display. It does not require a backlight source, has the characteristics of fast response speed and good display effect, and has attracted the attention of users. [0003] The display panel generally includes a substrate and a barrier dam in the non-display area of ​​the substrate, an organic electroluminescent structure located in the display area of ​​the substrate, and an encapsulation film layer covering the organic electroluminescence structure and the barrier dam. The encapsulation film layer is generally composed of The organic and inorganic layers are stacked; the inorganic layer functions to block w...

AI Technical Summary

Problems solved by technology

However, when the existing display panel is cut or bent or curled during subsequent use, due to stress, cracks are likely to occur near the edge of the display panel, that is, near the cut surface. When the crack extends to the display area, water and oxygen will enter through the crack. to the display area and thus affect the service life of the display panel

[0004] At the same time, in order to increase the screen-to-body ratio of the display, a perforated area is usually set on the display panel to install functional components such as a camera or an earpiece. When forming the perforated area, laser perforation technology is often used. Laser perforation will Lead to the shedding of particles, which in turn leads to the failure of the package, so that water and oxygen will enter the display area through cracks and affect the service life of the display panel

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