Abstract: A display device includes a back cover, a front frame, a backlight module, and a display panel. The back cover has at least one supporting structure and at least one position-limiting structure. The front frame is assembled to the back cover. The backlight module is disposed between the back cover and the front frame and includes a light guide plate (LGP), and the supporting structure supports a bottom surface of the LGP. The display panel is disposed between the backlight module and the front frame, the position-limiting structure is aligned to a side surface of the display panel, and a position of the display panel is limited by the position-limiting structure.

Abstract: An assembly structure for assembling a first casing and a second casing is disclosed. The first casing covers a panel module cooperatively with the second casing. The assembly structure includes a wedging portion, a fixing structure and an engaging structure. The wedging portion has a first plate and a second plate. The fixing structure is disposed on the first plate for fixing the second casing in a position corresponding to an edge of a bottom surface of the panel module. The engaging structure protrudes from the second plate for engaging with an engaging portion of the first casing, so as to fix the first casing in a position corresponding to a side of the panel module.