An exemplary video wall includes two display panels and a mullion elimination structure. The display panels each include a main body and a bezel. The mullion elimination structure includes a triangular prism and two transparent quadrangular prisms. The triangular prism includes a first bottom and two opposite first sides. The first bottom is attached to and covers two adjacent bezels of the display panels. The transparent quadrangular prisms each include a second bottom attached to the main body of one display panel, a second side, and an opposite third side . The third side is attached to the corresponding first side of the triangular prism. The second side is coated with a transflective film for partially transmitting and partially reflecting light incident thereon. A reflective surface is formed between the first sides of the triangular prism and the second sides of the quadrangular prisms for reflecting light incident thereon.