Array substrate of organic electroluminescent display panel, manufacturing method and display device

Abstract

The invention discloses an array substrate, a manufacturing method and a display device of an organic electroluminescent display panel. According to the manufacturing method of the array substrate, after a first photosensitive organic layer is formed, prebaking treatment is carried out on the first photosensitive organic layer, a solvent in the first photosensitive organic layer is removed, and therefore adhesion between the first photosensitive organic layer and a film layer where a pixel electrode is located is enhanced, and photonasty of the first photosensitive organic layer is reduced; then, a second photosensitive organic layer is formed on the first photosensitive organic layer, and the composition technology is carried out on the second photosensitive organic layer to form a spacer graph, and the first photosensitive organic layer cannot be affected; the composition technology is carried out on the first photosensitive organic layer to form a pixel limit layer graph, and primary curing treatment is carried out on the spacer graph and the pixel limit layer graph. Therefore primary curing treatment can be omitted, so that the manufacturing technology of a spacer and the pixel limit layer is simplified. The problem that organic material residues cannot exist is solved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an array substrate of an organic electroluminescence display panel, a manufacturing method and a display device. Background technique [0002] Among existing display panels, organic electroluminescent display panels (Organic Electroluminescent Display, OLED) have gradually become the mainstream in the display field due to their characteristics of low power consumption, high color saturation, and wide viewing angle. [0003] In the manufacturing process of the array substrate in the existing organic electroluminescent display panel, after forming the pixel electrodes, polyimide material is generally used to sequentially form the pixel definition layer for defining each pixel area of ​​the organic electroluminescent display panel And spacers for buffering external force to protect each film layer in the organic electroluminescence display panel. Specifically, the manufacturing pr...

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Problems solved by technology

It can be seen from this that the manufacturing process of the pixel defining layer and the spacer is relatively complicated.

[0004] In order to simplify the manufacturing process of the pixel defining layer and the spacer, the pattern of the pixel defining layer and the spacer can be formed by a patterning process using a gray tone mask first, and then the pattern of the pixel defining layer and the spacer is cured, However, the graphics of the pixel definition layer and the spacer produced by this manufacturing process will have the problem of polyimide material residue

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