A display panel includes a transmit-control portion and a light blocking portion. The pixel-transmit portion may include a pair of first sides and a pair of second sides and transmitting light, the pair of the first sides being inclined with respect to a horizontal-axis direction and substantially parallel with each other, the pair of the second sides being inclined with respect to a vertical-axis direction and substantially parallel with each other. The blocking portion may surround the pixel-transmit portion and block the light.