Substrate having pixel structure, photoelectric device including same, and printing method

Abstract

A substrate having a pixel structure, a photoelectric device including the same, and a printing method are provided. The pixel structure in the substrate with the pixel structure comprises a pixel unit with sub-pixels, and each sub-pixel includes a pixel isolation region and an illumination region, and the illumination region is located on a recess which is enclosed by a pixel isolation structure of the pixel isolation region and the substrate, the recess can hold a liquid material ejected by an inkjet printing device, and the bottom of the recess is in a shape of a first plane figure S1, the area of S2 is divided by the area of the S1, and the result is greater than or equal to 1, and smaller than or equal to 1.5, and the S2 and the S1 have intersection which is the S1, and the S1 is a second planar graph formed after the liquid material ejected by the inkjet printing device in one-time printing is dried on a flat surface of the test substrate, and a specific distance exists between the inkjet printing device and the test substrate, and the test substrate is conductive substrate not provided with a pixel partition structure. The application realizes the effect of improving the uniformity of the film layer of the light emitting region and the light emitting uniformity of the light emitting device.

Description

technical field [0001] The present application relates to the technical field of pixel design, in particular, to a substrate with a pixel structure, an optoelectronic device containing it, and a printing method. Background technique [0002] In recent years, the solution method has gradually replaced the traditional evaporation method and has become a research hotspot in the manufacture of electroluminescent devices. The process of manufacturing electroluminescent devices mainly includes setting corresponding functional inks into corresponding pixels. Generally, pixels include pixel defining layers and The light-emitting area, the light-emitting area is a pit surrounded by the pixel defining layer and the substrate. The pit is used to hold ink. After the ink is dried, each film layer (each functional layer and light-emitting layer) is formed. Each film layer and the upper and lower electrodes form a light-emitting area. device. [0003] Among the solution methods, inkjet pr...

AI Technical Summary

Problems solved by technology

[0006] The main purpose of this application is to provide a substrate with a pixel structure, an optoelectronic device containing it, and a printing method to solve the problem that the light-emitting device prepared by the existing inkjet printing method is prone to uneven film layers

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