Organic light emitting diode display device and method of manufacturing thereof
AssigneeShenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorShipan Wang
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Abstract
An organic light emitting diode display device and a method of manufacturing thereof are provided. An electron transport layer ink droplet is formed on a surface of the first solvent ink droplet by forming a first solvent ink droplet on a surface of the organic light emitting layer. Thus, the first solvent constituting the first solvent ink droplet and the second solvent of the electron transport layer ink droplet are evaporated to form the electron transport layer.
Claims18
A method of manufacturing an organic light emitting diode display device, comprising following steps of:
- providing a substrate, wherein the substrate comprises a plurality of pixel regions;
- forming an organic light emitting layer on the pixel region of the substrate, wherein the organic light emitting layer comprises an organic light emitting material;
- forming a first solvent ink droplet on the organic light emitting layer, wherein the first solvent ink droplet comprises a first solvent, and the organic light emitting material is insoluble or slightly soluble in the first solvent;
- forming an electron transport layer ink droplet on the first solvent ink droplet, wherein the electron transport layer ink droplet comprises an electron transport layer material and a second solvent;
- and
- vacuum drying and heating to volatilize the first solvent and the second solvent sequentially, and forming an electron transport layer on the organic light emitting layer.
An organic light emitting diode display device, comprising:
- a substrate, wherein the substrate comprises a plurality of pixel regions;
- an organic light emitting layer formed on a pixel region of the substrate, wherein the organic light emitting layer comprises an organic light emitting material;
- and
- an electron transport layer formed on the organic light emitting layer, wherein the electron transport layer forms a first solvent ink droplet through the organic light emitting layer, and an electron transport layer ink droplet is formed on the first solvent ink droplet by vacuum drying and heating the first solvent ink droplet and the electron transport layer ink droplet in sequentially to volatilize the first solvent of the first solvent ink droplet and the second solvent of the electron transport layer ink droplet;
- and wherein the organic light emitting is insoluble or slightly soluble in the first solvent, and the electron transport layer ink droplet comprises an electron transport layer material.
Dependencies are inferred from the claim text.