A display device including a back cover; a plurality of light sources coupled to the back cover; a guide panel positioned at the back cover, the guide panel including a seating portion, and a guide wall portion; a display panel supported on the seating portion of the guide panel; a top case including a front part covering an edge portion of a front surface of the display panel and a lateral part covering the guide wall portion of the guide panel, wherein the lateral part of the top case comprises a first part and a second part, the first part being further recessed than the second part; a fastener that couples the top case, the guide panel, and the back cover by penetrating the first part of the top case, the guide wall portion of the guide panel and an edge of the back cover, a first end of the fastener is placed at the first part of the top case; and a rear cabinet that covers the first end of the fastener and the first part of the top case. Further, an inner surface of the first part of the top case contacts with the guide wall portion of the guide panel, and a second end of the fastener protrudes through the edge of the back cover.