A kind of flexible oled display panel and preparation method thereof

Abstract

Embodiments of the present invention provide a flexible OLED display panel and a preparation method thereof, which can improve the ability to block water and oxygen, have a thin thickness, and have strong scratch resistance. The flexible OLED display panel includes an array substrate and an encapsulation substrate; the array substrate includes: a substrate, an OLED element disposed on the substrate at each sub-pixel, and an encapsulation film covering the OLED element; the encapsulation The substrate is a tempered glass substrate; wherein, the substrate material includes an inorganic material and / or a metal material with the ability to block water and oxygen, and the etching rate of the inorganic material or the metal material to the glass etching solution is lower than that of the glass rate. For bendable, foldable and rollable flexible display devices.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a flexible OLED display panel and a preparation method thereof. Background technique [0002] Organic light-emitting diode (Organic Light-Emitting Diode, referred to as OLED) display is flexible because of its material and structure, which provides the possibility for the diversity of product forms, such as non-planar special-shaped displays, non-fixed shape folding, curling monitor. However, in order to realize the bendable characteristics of OLED displays, the substrate substrate and packaging form of OLED displays are the biggest technical obstacles. [0003] At present, the substrate of the flexible OLED display panel uses a barrier layer and a plastic substrate together as the substrate; wherein, the material of the barrier layer is an inorganic material, the plastic substrate is an organic material (such as polyimide), and the barrier layer is on the plastic substrate. G...

AI Technical Summary

Problems solved by technology

[0004] However, the thermal ductility and film layer defects (pinholes, bubbles) of the plastic substrate in the flexible OLED display panel are a major problem affecting product quality, especially the film layer defects in the process of making the plastic substrate, resulting in the growth of its surface. The barrier layer also inherits its shortcomings and defects, which may cause the substrate to lose water and oxygen barrier capabilities, resulting in product failure

Moreover, the surface of the existing flexible OLED display panel has poor scratch resistance

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