METHODS OF MANUFACTURING OLED PIXEL AND DISPLAY DEVICE

摘要

A method of manufacturing an Organic Light Emitting Diode (OLED) pixel is disclosed. The method includes forming an anode and forming a pixel definition layer. The pixel definition layer includes a first sub-pixel area, a second sub-pixel area, a third sub-pixel area corresponding to the third sub-pixel, and a pixel spacing area. The first sub-pixel, the second sub-pixel and the third sub-pixel are separated from each other by the pixel spacing area. The method also includes coating a long-chain fatty acid ester layers on the pixel spacing area, the second sub-pixel area, and the third sub-pixel area, coating light emitting layers on the sub-pixel areas and on the long-chain fatty acid ester layers, and ashing the substrate and removing the long-chain fatty acid ester layers to form light emitting patterns. The method also includes forming a cathode.

主权项

1. A method of manufacturing an Organic Light Emitting Diode (OLED) pixel, wherein the OLED pixel at least comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, wherein the method of manufacturing the OLED pixel comprises:
forming an anode on a substrate; forming a pixel definition layer on the substrate, wherein the pixel definition layer comprises:
a first sub-pixel area corresponding to the first sub-pixel,a second sub-pixel area corresponding to the second sub-pixel,a third sub-pixel area corresponding to the third sub-pixel, anda pixel spacing area,wherein the first sub-pixel, the second sub-pixel and the third sub-pixel are separated from each other by the pixel spacing area; coating a first long-chain fatty acid ester layer on the pixel spacing area, the second sub-pixel area, and the third sub-pixel area; coating a first light emitting layer on the first sub-pixel area and on the first long-chain fatty acid ester layer; ashing the substrate, and removing the first long-chain fatty acid ester layer to form a first light emitting pattern; coating a second long-chain fatty acid ester layer on the pixel spacing area, the first light emitting pattern, and the third sub-pixel area; coating a second light emitting layer on the second sub-pixel area and the second long-chain fatty acid ester layer; ashing the substrate, and removing the second long-chain fatty acid ester layer to form a second light emitting pattern; coating a third long-chain fatty acid ester layer on the pixel spacing area, the first light emitting pattern, and the second light emitting pattern; coating a third light emitting layer on the third sub-pixel area and the third long-chain fatty acid ester layer; ashing the substrate, and removing the third long-chain fatty acid ester layer to form a third light emitting pattern; and forming a cathode.