Oled display panel and manufacturing method thereof

A manufacturing method of an OLED display panel, comprising:

• providing a first substrate;
• forming a planarization layer on the first substrate;
• forming an auxiliary electrode on the first substrate;
• forming an anode on the planarization layer;
• forming a pixel definition layer on the anode and the planarization layer, the pixel definition layer defining a plurality of pixel regions;
• forming a cathode isolation column on the auxiliary electrode;
• forming an organic light-emitting layer on the pixel definition layer, the anode, the auxiliary electrode, and the cathode isolation column;
• forming a cathode on the organic light-emitting layer, the cathode comprising a light-emitting cathode and an isolation cathode, the light-emitting cathode being disposed on the pixel definition layer and the pixel region, the isolation cathode being disposed on the cathode isolation column, the light-emitting cathode and the isolation cathode being isolated from each other by the cathode isolation column;
• wherein the manufacturing method of an OLED display panel further comprises:
• forming an electrode stage electrically connected to the auxiliary electrode,
• wherein the cathode isolation column is formed on the electrode stage electrically connected to the light-emitting cathode for the light-emitting cathode to receive a voltage on the auxiliary electrode.