Organic light-emitting display panel, fabrication method thereof and organic light-emitting display device

Abstract

The embodiment of the invention provides an organic light-emitting display panel, a fabrication method thereof and an organic light-emitting display device, and relates to the technical field of display. The organic light-emitting display panel provided by the embodiment comprises an array substrate, a planarization layer, a pixel defining layer and a plurality of organic light-emitting devices, wherein a plurality of pixel openings are formed in the pixel defining layer, at least two organic light-emitting devices for emitting the same color are arranged in each pixel opening, positive electrodes of the organic light-emitting devices are electrically connected with pixel driving circuits on the array substrate in one-to-one correspondence, a plurality of grooves are further formed in theplanarization layer, the grooves are arranged between two arbitrary organic light-emitting devices in each pixel opening, the grooves are filled with hydrophobic layers, trenches are formed in the hydrophobic layers, extension directions of the trenches are same as extension directions of the grooves, and organic light-emitting function layers arranged at two sides of each trench are discrete to each other. With the organic light-emitting display panel provided by the technical scheme, the display effect of the organic light-emitting display panel can be effectively improved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to an organic light emitting display panel, a manufacturing method thereof, and an organic light emitting display device. Background technique [0002] With the rapid development of flat panel display technology, organic light emitting display panels (Organic Light Emitting Display, OLED for short) are more and more widely used due to their excellent characteristics such as self-illumination, high brightness, wide viewing angle, and fast response. [0003] Such as figure 1 as shown, figure 1 A schematic cross-sectional view of an organic light-emitting display panel provided in the prior art. The organic light-emitting display panel includes an array substrate 1', a pixel definition layer 2' on the array substrate 1', and a plurality of organic light-emitting devices 3', wherein the pixel definition layer 2' has a plurality of pixel openings, and the organic light emittin...

AI Technical Summary

Problems solved by technology

[0004] The inventors of the present application found that when using the inkjet printing technology to prepare the organic light-emitting functional layers of organic light-emitting devices, within a pixel opening, the organic light-emitting functional layers of adjacent organic light-emitting devices 3' are inevitably connected to each other, As an integral structure, it cannot be completely independent, so that the organic light-emitting devices 3' will affect each other, which will greatly weaken the display effect of the organic light-emitting display panel and affect people's perception

Images