OLED display panel and manufacturing method thereof

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

• Step S1:
• providing a substrate, forming an OLED device on the substrate, forming a thin film encapsulation layer covering the OLED device on the substrate;
• Step S2:
• forming a first scattering layer on the thin film encapsulation layer;
• Step S3:
• forming a quantum dot layer on the first scattering layer;
• Step S4:
• forming a second scattering layer on the quantum dot layer,
• wherein the first scattering layer that is located on a first surface of the quantum dot layer adjacent to the OLED device has a first light scattering mechanism and the second scattering layer that is located on a second surface of the quantum dot layer distant from the OLED device has a second light scattering mechanism, and the second light scattering mechanism of the second scattering layer that is distant from the OLED device comprises a net-like structure and is different from the first light scattering mechanism of the first scattering layer that is of a non-net-like structure located adjacent to the OLED device, wherein the quantum dot layer is sandwiched between the non-net-like structure of the first scattering layer and the net-like structure of the second scattering layer so that different scattering mechanisms in the form of the net-like structure and non-net-like structure are respectively provided on two opposite surfaces of the quantum dot layer.