The invention provides a photosensitive resin composition having excellent sensitivity and capable of preventing developed patterns from suffering undercuts even if the photosensitive resin composition has opcifiers or does not have enough exposure, a color filter using the same and a display device. The photosensitive resin composition provided in the invention is characterized by comprising (A) a photo-polymerization compound and (B) an oxime type photo-polymerization initiator represented in formula (1). In formula (1), n is the natural number 2.
