Provided is an organic pixel, which includes a semiconductor substrate including a pixel circuit, an interconnection layer having a first contact and a first electrode formed on a semiconductor substrate, and an organic photo-diode formed on the interconnection layer. For example, the organic photo-diode includes an insulation layer formed on the first electrode, a second electrode and a photo-electric conversion region formed between the first contact, the insulation layer and the second electrode. The photo-electric conversion region includes an electron donating organic material and an electron accepting organic material. The organic photo-diode may further include a second contact electrically connected to the first contact. The horizontal distance between the second contacts and the insulation layer may be less than or equal to a few micrometers, for example, 10 micrometers.