A display device comprising: a display panel , provided with a through hole extending through the display panel in a thickness direction thereof, and the display panel comprising: a frame area surrounding the through hole ; and an active area surrounding the frame area ; and a cover plate covering the display panel , the cover plate comprising: a first region covering the active area ; a second region covering the frame area ; and a third region covering the through hole ; characterized in that: a surface of the second region adjacent to the display panel is provided with a light-shielding portion thereon, and the light-shielding portion comprises the surface of the second region adjacent to the display panel ; and a roughness of a surface of the light-shielding portion adjacent to the display panel is larger than a roughness of a surface of the first region adjacent to the display panel and larger than a roughness of a surface of the third region adjacent to the display panel . a display panel , provided with a through hole extending through the display panel in a thickness direction thereof, and the display panel comprising: a frame area surrounding the through hole ; and an active area surrounding the frame area ; and a frame area surrounding the through hole ; and an active area surrounding the frame area ; and a cover plate covering the display panel , the cover plate comprising: a first region covering the active area ; a second region covering the frame area ; and a third region covering the through hole ; characterized in that: a surface of the second region adjacent to the display panel is provided with a light-shielding portion thereon, and the light-shielding portion comprises the surface of the second region adjacent to the display panel ; and a roughness of a surface of the light-shielding portion adjacent to the display panel is larger than a roughness of a surface of the first region adjacent to the display panel and larger than a roughness of a surface of the third region adjacent to the display panel . a first region covering the active area ; a second region covering the frame area ; and a third region covering the through hole ; characterized in that: a surface of the second region adjacent to the display panel is provided with a light-shielding portion thereon, and the light-shielding portion comprises the surface of the second region adjacent to the display panel ; and a roughness of a surface of the light-shielding portion adjacent to the display panel is larger than a roughness of a surface of the first region adjacent to the display panel and larger than a roughness of a surface of the third region adjacent to the display panel . a surface of the second region adjacent to the display panel is provided with a light-shielding portion thereon, and the light-shielding portion comprises the surface of the second region adjacent to the display panel ; and a roughness of a surface of the light-shielding portion adjacent to the display panel is larger than a roughness of a surface of the first region adjacent to the display panel and larger than a roughness of a surface of the third region adjacent to the display panel . <EOS>