An organic light emitting diode display including a pixel that includes a light-emitting device and a first thin film transistor connected to the light-emitting device; and a sensor that includes a light sensing element, wherein the light sensing element includes a gate electrode; an active layer on the gate electrode; a filter layer on the active layer; and source and drain electrodes on the active layer, the source and drain electrodes being connected to the active layer, the light sensing element and the first thin film transistor are formed on a same substrate, and one of the gate electrode and the active layer of the light sensing element and a gate electrode of the first thin film transistor are aligned on a same layer.