A display device comprising: a display panel including: a front surface; a first edge positioned at an end of the front surface; and a second edge positioned at another end of the front surface; and a rear plate positioned at a rear of the display panel, the rear plate including: a flat plate portion facing the display panel; a first wing bent and extended toward a front of the display panel from the flat plate portion, the first wing covering the first edge; a second wing bent and extended toward the front of the display panel from the flat plate portion, the second wing covering the second edge; a middle plate placed between the display panel and the rear plate, wherein the middle plate is attached to the display panel; a coupling protrusion projecting toward a rear of the middle plate from a rear surface of the middle plate, wherein the rear plate includes a fastening hole corresponding to the coupling protrusion, and wherein the coupling protrusion is fitted into the fastening hole of the rear plate; wherein the coupling protrusion includes a hollow portion opened toward the rear of the middle plate, wherein the display device further comprises: a PCB plate positioned behind the rear plate, the PCB plate including a fastening hole into which the coupling protrusion is fitted; and a screw configured to be fitted in the hollow portion formed in the coupling protrusion and inserted therein. a display panel including: a front surface; a first edge positioned at an end of the front surface; and a second edge positioned at another end of the front surface; and a front surface; a first edge positioned at an end of the front surface; and a second edge positioned at another end of the front surface; and a rear plate positioned at a rear of the display panel, the rear plate including: a flat plate portion facing the display panel; a first wing bent and extended toward a front of the display panel from the flat plate portion, the first wing covering the first edge; a second wing bent and extended toward the front of the display panel from the flat plate portion, the second wing covering the second edge; a middle plate placed between the display panel and the rear plate, wherein the middle plate is attached to the display panel; a coupling protrusion projecting toward a rear of the middle plate from a rear surface of the middle plate, wherein the rear plate includes a fastening hole corresponding to the coupling protrusion, and wherein the coupling protrusion is fitted into the fastening hole of the rear plate; a flat plate portion facing the display panel; a first wing bent and extended toward a front of the display panel from the flat plate portion, the first wing covering the first edge; a second wing bent and extended toward the front of the display panel from the flat plate portion, the second wing covering the second edge; a middle plate placed between the display panel and the rear plate, wherein the middle plate is attached to the display panel; a coupling protrusion projecting toward a rear of the middle plate from a rear surface of the middle plate, wherein the rear plate includes a fastening hole corresponding to the coupling protrusion, and wherein the coupling protrusion is fitted into the fastening hole of the rear plate; wherein the coupling protrusion includes a hollow portion opened toward the rear of the middle plate, wherein the display device further comprises: a PCB plate positioned behind the rear plate, the PCB plate including a fastening hole into which the coupling protrusion is fitted; and a screw configured to be fitted in the hollow portion formed in the coupling protrusion and inserted therein. a PCB plate positioned behind the rear plate, the PCB plate including a fastening hole into which the coupling protrusion is fitted; and a screw configured to be fitted in the hollow portion formed in the coupling protrusion and inserted therein.