A display device includes a display module, an assembly holder and a front case. The display module has a front surface, a rear surface, a side surface, and a display area. The front surface and the rear surface are located at two opposite sides of the display module. The side surface connects between the front surface and the rear surface. The display area is located at the front surface. The assembly holder includes a joint portion and a first withstanding portion. The joint portion is arranged on the side surface. The first withstanding portion is connected to the joint portion. The front case includes a first plate member, a second plate member, and a second withstanding portion. The first plate member is connected to the second plate member. The second withstanding portion is located on the first plate member and has a groove.