Display panel, display device, and method for manufacturing display panel

Abstract

The invention relates to a display panel, a display device and a preparation method of the display panel. At first, a display panel is provided, which includes an array substrate and a pixel defininglay, wherein the pixel defining layer is arranged on the array substrate and defines a plurality of pixel regions, a plurality of groove structures are arranged on the pixel defining layer, and the groove structures do not overlap with the pixel regions. As that groove structure is arrange at the peripheral position of the pixel area, the display panel can disperse and release the stress inductivity increased instantaneously in the groove structure when the display panel is subject to external impact, thereby improving the impact resistance of the display panel and achieving the purpose of protecting the pixel area unde the impact of external force. In addition, the display panel needs no additional cushioning material, the thickness of the display panel is reduced, and the bending performance of the display panel is improved.

Description

technical field [0001] The invention relates to the field of display devices, in particular to a display panel, a display device and a preparation method of the display panel. Background technique [0002] Organic light-emitting diode (Organic Light-Emitting Diode, OLED) display, also known as organic electroluminescent display, is a new type of flat panel display device; due to its simple preparation process, low cost, low power consumption, high luminance, It has the advantages of light and thin volume, fast response speed, and easy realization of color display, large-screen display, and flexible display, etc., and has broad application prospects. [0003] After the organic light-emitting diode display is manufactured, it is usually necessary to conduct a series of reliability tests on the display screen. Usually, the ball drop test is used to test the impact resistance of the screen. The phenomenon of stress surge may cause display abnormalities, especially for flexible ...

AI Technical Summary

Problems solved by technology

[0003] After the organic light-emitting diode display is manufactured, it is usually necessary to conduct a series of reliability tests on the display screen. Usually, the ball drop test is used to test the impact resistance of the screen. The phenomenon of stress surge may cause display abnormalities, especially for flexible screens. When it is subjected to an instantaneous impact, due to the absence of a hard protective layer, the stress increases sharply, which is more likely to cause black spots, bright spots, and colorful spots in the display area. defect

[0004] In the prior art, it is common to add extra cushioning material to improve the display abnormality, but this method will increase the thickness of the display screen and reduce the bending performance

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