A display panel and manufacturing method thereof

Abstract

The invention provides a display panel and a preparation method thereof, which are used to disperse the stress on the stress-bearing surface of the water-blocking layer during the bending process through the droplet microstructure in the organic buffer layer, thereby improving the stress-bearing surface of the water-blocking layer The stress is relatively concentrated, and the water-blocking layer is broken due to the poor flexibility of the water-blocking layer, and a new water molecule erosion channel is formed at the fracture; and the path of water molecule penetration is extended through the droplet microstructure in the organic buffer layer , so that the time for the water molecules to reach the light-emitting layer in the display panel is prolonged, and the device life of the light-emitting layer is improved. The display panel includes: a first inorganic water blocking layer, a second inorganic water blocking layer, and an organic buffer layer between the first inorganic water blocking layer and the second inorganic water blocking layer, wherein the The organic buffer layer includes: a droplet microstructure for dispersing the stress of the organic buffer layer.

Description

technical field [0001] The present invention relates to the field of display technology, and in particular, to a display panel and a preparation method thereof. Background technique [0002] Organic Light-Emitting Diode (OLED) has the characteristics of self-luminescence, high brightness, high contrast, low operating voltage, flexible display, etc., and is known as the most promising display device. [0003] see figure 1 The existing display panel includes: a flexible substrate 101 , a thin film transistor 102 , a light emitting layer 103 , a first inorganic water blocking layer 104 , an organic buffer layer 105 , a second inorganic water blocking layer 106 , a barrier layer 107 , and a glass cover 108 . In order to prevent the light-emitting layer 103 from being eroded by water and oxygen in the OLED device, a method usually adopted is to use a hard substrate with high water resistance (such as glass) for encapsulation. But this solution is not suitable for flexible OLED ...

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a display panel and a preparation method thereof, which are used to disperse the force on the stress-bearing surface of the water-blocking layer during the bending process through the droplet microstructure in the organic buffer layer, thereby improving the stress-bearing surface of the water-blocking layer. The stress on the force surface is relatively concentrated, and the water-blocking layer is broken due to the poor flexibility of the water-blocking layer, and a new water molecule erosion channel is formed at the fracture; and the water molecule penetration is prolonged through the micro-droplet microstructure in the organic buffer layer The path prolongs the time for water molecules to reach the light-emitting layer in the display panel, improving the device life of the light-emitting layer

Images