Organic light-emitting display device and manufacturing method thereof

Abstract

The present invention relates to an organic light-emitting display device and a manufacturing method thereof. The method includes: providing an array substrate; forming an anode layer on the array substrate; forming an organic layer on a predetermined area on the anode, wherein the organic The layer is prepared and formed at least partly by an inkjet printing process; a cathode layer is formed on the organic layer; and a protective layer is formed on the cathode layer. The organic layer can be accurately formed in the preset area through the inkjet printing process, effectively avoiding the deposition of organic materials in the non-preset area, so that when the organic light-emitting display device is drilled and packaged, the organic material can be effectively avoided. Vaporization of the preset area leads to encapsulation failure, so that the encapsulation effect is better, and the organic light-emitting display device with drilled holes is manufactured more conveniently and quickly, and the manufacturing cost is lower.

Description

technical field [0001] The invention relates to the technical field of organic light-emitting display manufacturing, in particular to an organic light-emitting display device and a preparation method thereof. Background technique [0002] OLED (Organic Light-Emitting Diode, organic light-emitting diode) display has the advantages of self-illumination, ultra-thin, fast response, wide viewing angle, low power consumption, etc., and is considered to be the most potential display device. [0003] With the wide application of OLED, OLED screen needs to meet the screen design requirements of different shapes. For example, holes are drilled in the middle or part of the screen to meet the needs of display devices of various shapes. Drilling generally adopts laser cutting or drilling to drill holes in the drilling area of ​​the OLED. [0004] At present, the drilling technology of the OLED drilling area is still in its infancy, and its technology is not fully mature. The main probl...

AI Technical Summary

Problems solved by technology

[0004] At present, the drilling technology of the OLED drilling area is still in its infancy, and its technology is not fully mature. The main problem is how to avoid the packaging failure caused by the residue of organic materials in the part that needs to be drilled in the screen.

At present, the main means to solve this problem is to realize the problem of organic material residue through fine mask control, but the fine mask required for this process not only makes the manufacturing process complicated, but also makes the manufacturing cost relatively high due to the high cost of materials. High; Another common technique is to vaporize the organic material in the drilling area. This process requires a high degree of precise control, otherwise the residual organic material will easily lead to OLED packaging failure.

Images