A mobile terminal, comprising: a main body defining an outer surface of the mobile terminal and being further shaped to define an aperture; a cover portion (200, 300, 400) sized to be received within the aperture of the main body, wherein an outer surface of the cover portion lies generally parallel and proximate to the outer surface of the main body; and a light emitting device (250, 350, 450) positioned in the main body and configured to direct light toward at least one edge of the cover portion, wherein the cover portion comprises: a first plate member (210, 310, 410) comprising a transparent or translucent material and positioned away from the outer surface of the main body toward an interior portion of the main body; a second plate member (220. 320, 420) comprising a transparent or translucent material, a surface of the second plate member forming the outer surface of the cover portion, wherein the second plate member is arranged in a stacked configuration with the first plate member; a lens array layer (230, 330, 430) positioned between the first plate member and the second plate member, the lens array layer comprising a plurality of convex lenses or concave lenses arrayed on at least one surface of the lens array layer; a first pattern layer (213, 313, 413) positioned on a surface of the first plate member; and a light shielding wall (240, 340, 440) positioned along an edge of the lens array layer between the light emitting device and the lens array layer and configured to decrease a transmittance of light irradiated to the lens array layer from the light emitting device characterized in that the first pattern layer is positioned proximate to focal distances of the plurality of convex lenses or concave lenses. a main body defining an outer surface of the mobile terminal and being further shaped to define an aperture; a cover portion (200, 300, 400) sized to be received within the aperture of the main body, wherein an outer surface of the cover portion lies generally parallel and proximate to the outer surface of the main body; and a light emitting device (250, 350, 450) positioned in the main body and configured to direct light toward at least one edge of the cover portion, wherein the cover portion comprises: a first plate member (210, 310, 410) comprising a transparent or translucent material and positioned away from the outer surface of the main body toward an interior portion of the main body; a second plate member (220. 320, 420) comprising a transparent or translucent material, a surface of the second plate member forming the outer surface of the cover portion, wherein the second plate member is arranged in a stacked configuration with the first plate member; a lens array layer (230, 330, 430) positioned between the first plate member and the second plate member, the lens array layer comprising a plurality of convex lenses or concave lenses arrayed on at least one surface of the lens array layer; a first pattern layer (213, 313, 413) positioned on a surface of the first plate member; and a light shielding wall (240, 340, 440) positioned along an edge of the lens array layer between the light emitting device and the lens array layer and configured to decrease a transmittance of light irradiated to the lens array layer from the light emitting device a first plate member (210, 310, 410) comprising a transparent or translucent material and positioned away from the outer surface of the main body toward an interior portion of the main body; a second plate member (220. 320, 420) comprising a transparent or translucent material, a surface of the second plate member forming the outer surface of the cover portion, wherein the second plate member is arranged in a stacked configuration with the first plate member; a lens array layer (230, 330, 430) positioned between the first plate member and the second plate member, the lens array layer comprising a plurality of convex lenses or concave lenses arrayed on at least one surface of the lens array layer; a first pattern layer (213, 313, 413) positioned on a surface of the first plate member; and a light shielding wall (240, 340, 440) positioned along an edge of the lens array layer between the light emitting device and the lens array layer and configured to decrease a transmittance of light irradiated to the lens array layer from the light emitting device characterized in that the first pattern layer is positioned proximate to focal distances of the plurality of convex lenses or concave lenses.