An organic light emitting diode display includes a substrate; a buffer layer on the substrate; a scan line running to a horizontal direction on the buffer layer; an intermediate insulating layer covering the scan line; a first trench having a segment shape apart from the scan line with a predetermined distance and exposing some of the substrate by patterning the intermediate insulating layer and the buffer layer; a data line running to a vertical direction on the substrate exposed by the first trench and on the intermediate insulating layer; a passivation layer covering the data line and the scan line; and a color filter filling into the trench and depositing on the passivation layer.