The present disclosure relates to an organic light emitting diode (OLED) display panel, an OLED display and an OLED unit. The OLED display panel includes: a scan line, extending along a first direction; a data line, extending along a second direction perpendicular to the first direction; an OLED unit, including a first electrode, a second electrode, and an organic light emitting layer formed between the first electrode and the second electrode; and a heat conducting layer, formed of an insulating heat conduction material and connected to the scan line, the data line, and the first electrode in the OLED unit.