Display device and organic light-emitting diode panel thereof, and method for manufacturing organic light-emitting diode panel

A display device, comprising an organic light-emitting diode (OLED) panel comprising:

• a substrate, and a light-emitting structure disposed on the substrate;
• wherein
• at least one film layer and a planarization layer disposed on the at least one film layer are disposed between the substrate and the light-emitting structure, the at least one film layer comprising a transistor;
• the OLED panel comprises a first region and a second region, wherein a source and a drain of the transistor are disposed in the first region;
• and
• wherein the at least one film layer comprises an insulating layer, wherein a thickness of the insulating layer in the first region is less than a thickness of the insulating layer in the second region.

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

• providing a substrate;
• forming at least one film layer on the substrate, wherein the at least one film layer comprises a transistor, the OLED panel comprises a first region and a second region, a source and a drain of the transistor being disposed in the first region, and the at least one film layer comprises an insulating layer, wherein a thickness of the insulating layer in the first region is less than a thickness of the insulating layer in the second region;
• forming a planarization layer on the at least one film layer;
• and
• forming a light-emitting structure on the planarization layer.