A display device comprising: a transparent plate; and a first display panel disposed at a first surface of the transparent plate, the transparent plate positioned on a back side of the first display panel, a first transparent frame disposed at the first surface of the transparent plate and adjacent to the first display panel; a first receiving portion (122a, 123a) formed at the transparent plate; a slot formed at at least the transparent plate or the first transparent frame; a first member layer connected to a first side of the first display panel; a first PCB connected to the first member layer and positioned at the first receiving portion (122a, 123a); a first cable extending from the first PCB and inserted into the slot; and a controller that does not overlap the first display panel in a front-back direction, wherein the display device further comprises: a second display panel at a second surface of the transparent plate; a second transparent frame disposed at the second surface of the transparent plate and adjacent to the second display panel; a second receiving portion (122b, 123b) formed at the transparent plate; a second member layer connected to a first side of the second display panel; a second PCB connected to the second member layer and positioned at the second receiving portion (122b, 123b); and a second cable extending from the second PCB and inserted into the slot, wherein the slot includes an opening to an outer surface of at least the transparent plate or the first transparent frame, wherein the first cable is bent, passes through the slot and is connected to the controller. a transparent plate; and a first display panel disposed at a first surface of the transparent plate, the transparent plate positioned on a back side of the first display panel, a first transparent frame disposed at the first surface of the transparent plate and adjacent to the first display panel; a first receiving portion (122a, 123a) formed at the transparent plate; a slot formed at at least the transparent plate or the first transparent frame; a first member layer connected to a first side of the first display panel; a first PCB connected to the first member layer and positioned at the first receiving portion (122a, 123a); a first cable extending from the first PCB and inserted into the slot; and a controller that does not overlap the first display panel in a front-back direction, wherein the display device further comprises: a second display panel at a second surface of the transparent plate; a second transparent frame disposed at the second surface of the transparent plate and adjacent to the second display panel; a second receiving portion (122b, 123b) formed at the transparent plate; a second member layer connected to a first side of the second display panel; a second PCB connected to the second member layer and positioned at the second receiving portion (122b, 123b); and a second cable extending from the second PCB and inserted into the slot, a second display panel at a second surface of the transparent plate; a second transparent frame disposed at the second surface of the transparent plate and adjacent to the second display panel; a second receiving portion (122b, 123b) formed at the transparent plate; a second member layer connected to a first side of the second display panel; a second PCB connected to the second member layer and positioned at the second receiving portion (122b, 123b); and a second cable extending from the second PCB and inserted into the slot, wherein the slot includes an opening to an outer surface of at least the transparent plate or the first transparent frame, wherein the first cable is bent, passes through the slot and is connected to the controller.