A color filter includes a substrate including a first surface having a first pixel area and a second pixel area spaced apart from each other and a light blocking area positioned between the first pixel area and the second pixel area. The light blocking area includes a trench. The color filter further includes a first color converter disposed on the first pixel area and configured to convert incident light to light of a first color, a second color converter disposed on the second pixel area and configured to convert the incident light to light of a second color, and a light blocker disposed in the trench.