There are provided an OLED display and a method of manufacturing the same, in order to improved resolution of the OLED display. The OLED display comprises a substrate and a plurality of light emitting array units provided and periodically arranged on the substrate, each light emitting array unit comprising first, second and third light emitting units arranged in this order. Each light emitting unit comprises an anode, a cathode and an organic material functional layer located therebetween, the organic material functional layer comprising a light emitting layer. For each light emitting array unit, the first light emitting layer is formed within the first and second light emitting units, the second light emitting layer is formed within the second and third light emitting units, and the first and second light emitting layers are configured to emit light of different colors; in the second light emitting unit, the first and second light emitting layers overlap with each other and are configured so that only one of them is capable of emitting light. In each light emitting array unit, one of two light emitting units which have the same light emitting layer for emitting light further comprises a light color conversion layer arranged on a light exiting side of the one light emitting unit, the light color conversion layer being configured to convert light from its corresponding light emitting layer to light having a color different from those of light emitted by other light emitting units of the light emitting array unit.