An organic light-emitting display panel, its preparation method, and display device

Abstract

Embodiments of the present invention provide an organic light-emitting display panel, a preparation method thereof, and a display device, which relate to the technical field of electroluminescence display, and can solve the problem that the liquid organic light-emitting material at the edge of the pixel defining layer in the organic light-emitting display panel is easy to flow outward. The problem that causes the overall performance of the device to degrade. The organic light emitting display panel includes: a pixel defining layer located in the display area of ​​the organic light emitting display panel, the pixel defining layer has a plurality of openings, and the openings are used for setting an organic light emitting functional layer; the organic light emitting display panel also It includes a blocking layer surrounding the pixel defining layer; wherein, the pixel defining layer has the same hydrophilicity and hydrophobicity as the organic light-emitting functional layer, and the blocking layer has opposite hydrophilicity and hydrophobicity to the organic light-emitting functional layer. Used in the preparation of organic light-emitting display panels.

Description

technical field [0001] The invention relates to the technical field of electroluminescence display, in particular to an organic light-emitting display panel, a preparation method thereof, and a display device. Background technique [0002] Compared with Liquid Crystal Display (LCD), Organic Light-Emitting Device (OLED) has the advantages of self-illumination, fast response, wide viewing angle, high brightness, bright color, and thinness. It is considered to be the next generation of mainstream display technology. [0003] Such as figure 1 As shown, the main structure of the OLED display device is an OLED device, including a substrate 10 , an anode electrode layer 11 , an organic light-emitting functional layer 30 , and a cathode electrode layer 12 . Among them, the organic light-emitting functional layer 30 is the core structure of the OLED device, mainly composed of a hole injection layer 31, a hole transport layer 32, a light-emitting layer 33, an electron transport laye...

AI Technical Summary

Problems solved by technology

[0007] In view of this, in order to solve the problems in the prior art, the embodiments of the present invention provide an organic light-emitting display panel, its manufacturing method, and a display device, which can solve the problem of the pixel-defining layer when the organic light-emitting material is coated on the entire surface by the solution method. At the edge, the liquid organic light-emitting material is easy to flow out freely, causing the performance degradation of the OLED display panel and the increase of the non-display area area.

Images