a pixel part having sub-pixels disposed therein, and

at least one transparent part disposed in an area adjacent to the pixel part, wherein the at least one transparent part is configured to pass external light therethrough,

wherein the pixel part includes:

first, second, third and fourth extension parts extending in directions different from each other, the first, second, third and fourth extension parts each including wires, and

first, second, third and fourth circuit parts, each of the first, second, third and fourth circuit parts being disposed between a respective adjacent pair of the first, second, third and fourth extension parts and including circuit elements of a respective sub-pixel of the sub-pixels, and

wherein each of the first, second, third and fourth circuit parts has a three sided shape, the three sided shape including:

a first side in contact with one of the first, second, third and fourth extension parts adjacent thereto;

a second side in contact with another of the first, second, third and fourth extension parts adjacent thereto; and

a third side in contact with the transparent part.