OLED DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF, AND DISPLAY APPARATUS

摘要

An OLED display device and manufacturing method thereof are provided. The method comprises: forming an array comprising first electrodes on a base substrate, with an area to which the first electrodes correspond being a display area; forming pixel defining layers respectively between the first electrodes so that a width of a cross section of each pixel defining layer is relatively larger at a middle portion and reduced gradually towards an upper portion and a lower portion; forming organic light-emitting layers respectively on the first electrodes between the pixel defining layers; and at least forming a second electrode which is at least provided on the organic light-emitting layers. The OLED display device made in this method can minimize the coffee ring effect of the organic light-emitting layers, avoid the layer-broken phenomenon occurring to the second electrode, and thus improve the display quality and save the material for the second electrode.

主权项

1. A method for manufacturing an organic light-emitting diode (OLED) display device comprising:
forming an array comprising first electrodes on a base substrate, wherein an area to which the first electrodes correspond is a display area; forming pixel defining layers respectively between the first electrodes so that a width of a cross section of each pixel defining layer is relatively larger at a middle portion and reduced gradually towards an upper portion and towards a lower portion; forming organic light-emitting layers respectively on the first electrodes between the pixel defining layers; andforming a second electrode which is at least provided on the organic light-emitting layers.