A dual light emission panel (panel capable of displaying images on both screens) is mounted in a display device or a portable information terminal to achieve a module with a small volume. The display device of the invention comprises a display screen, a first housing and a second housing that are connected to each other, and a dual light emission panel including display screens each on the front side and the back side. The dual light emission panel is connected to the first housing, disposed between the first housing and the second housing when overlapping the first housing, and rotated around a connecting point of the dual light emission panel and the first housing.