Organic light-emitting diode display panel and manufacturing method thereof

A manufacturing method of an organic light-emitting diode (OLED) display panel, comprising steps of:

• forming a pixel defining layer;
• performing a patterning process on the pixel defining layer to form a plurality of recessed regions and a plurality of grooves, wherein the recessed regions communicate with each other through the grooves, the recessed regions and the grooves form a mesh structure, and the mesh structure defines a plurality of the pixel regions, a depth of the grooves from the substrate is lower than a depth of the recessed regions from the substrate, such that a height difference between a bottom of the recessed regions and a bottom of the grooves is formed;
• evaporating an organic light-emitting layer on the pixel defining layer, wherein the organic light-emitting layer defines the grooves;
• and
• adding a plurality of organic encapsulation droplets on the organic light-emitting layer, wherein the organic encapsulation droplets are spread via capillary force to form an organic encapsulation layer.

An organic light-emitting diode (OLED) display panel, comprising:

• a substrate;
• a pixel defining layer disposed on the substrate, wherein the pixel defining layer comprises a plurality of recessed regions and a plurality of grooves, the recessed regions communicate with each other through the grooves, the recessed regions and the grooves form a mesh structure, and the mesh structure defines the pixel regions, a depth of the grooves from the substrate is lower than a depth of the recessed regions from the substrate, such that a height difference between a bottom of the recessed regions and a bottom of the grooves is formed;
• an organic light-emitting layer disposed on the pixel defining layer an organic light-emitting layer disposed on the pixel defining layer, wherein the organic light-emitting layer defines the grooves;
• and
• an organic encapsulation layer disposed on the organic light-emitting layer.