A direct-viewing type display device includes a display panel including a display region which has a plurality of pixel lines extending in a first direction and a frame region, the display region and the frame region having a border extending in the first direction therebetween; and a light-transmitting cover. The plurality of pixel lines include a first pixel line adjoining the border, a second pixel line, and a third pixel line. The first pixel line, the second pixel line and the third pixel line are of different colors from each other. The light-transmitting cover includes a lens portion located over the border, the lens portion refracting a part of light going toward the frame region. A light diffusion structure is provided between the lens portion and a part of the display panel including the first pixel line, the second pixel line and the third pixel line.