A mobile terminal comprising: a display; a light guide plate configured to diffuse light, the display being positioned on a front surface of the light guide plate, the light guide plate including a first side and a second side opposite the first side; and a plurality of light sources facing the first side of the light guide plate, wherein: the light guide plate includes a plurality of radiation portions (A1, A2, A3) extending in a direction perpendicular to the direction from the first side to the second side, and being respectively disposed from the first side to the second side; and the light guide plate is formed by a plurality of light guide areas (430a, 430b, 430c), each of the plurality of light guide areas (430a, 430b, 430c) comprising a corresponding radiation portion of the plurality of radiation portions (A1, A2, A3) and corresponding to a different light source, each of the plurality of light guide areas (430a, 430b, 430c) being extended from its corresponding radiation portion to the first side, each of the light guide areas (430a, 430b, 430c) being provided with light from its corresponding light source of the plurality of light sources and wherein the mobile terminal further comprises a controller configured to: control the display to operate in one of operation states including a first state, in which all of the plurality of light sources are activated such that the entire display is illuminated, and a second state, in which at least one light source corresponding to a radiation portion is selectively activated such that a portion of the display is illuminated. a display; a light guide plate configured to diffuse light, the display being positioned on a front surface of the light guide plate, the light guide plate including a first side and a second side opposite the first side; and a plurality of light sources facing the first side of the light guide plate, wherein: the light guide plate includes a plurality of radiation portions (A1, A2, A3) extending in a direction perpendicular to the direction from the first side to the second side, and being respectively disposed from the first side to the second side; and the light guide plate is formed by a plurality of light guide areas (430a, 430b, 430c), each of the plurality of light guide areas (430a, 430b, 430c) comprising a corresponding radiation portion of the plurality of radiation portions (A1, A2, A3) and corresponding to a different light source, each of the plurality of light guide areas (430a, 430b, 430c) being extended from its corresponding radiation portion to the first side, each of the light guide areas (430a, 430b, 430c) being provided with light from its corresponding light source of the plurality of light sources and wherein the mobile terminal further comprises a controller configured to: control the display to operate in one of operation states including a first state, in which all of the plurality of light sources are activated such that the entire display is illuminated, and a second state, in which at least one light source corresponding to a radiation portion is selectively activated such that a portion of the display is illuminated. the light guide plate includes a plurality of radiation portions (A1, A2, A3) extending in a direction perpendicular to the direction from the first side to the second side, and being respectively disposed from the first side to the second side; and the light guide plate is formed by a plurality of light guide areas (430a, 430b, 430c), each of the plurality of light guide areas (430a, 430b, 430c) comprising a corresponding radiation portion of the plurality of radiation portions (A1, A2, A3) and corresponding to a different light source, each of the plurality of light guide areas (430a, 430b, 430c) being extended from its corresponding radiation portion to the first side, each of the light guide areas (430a, 430b, 430c) being provided with light from its corresponding light source of the plurality of light sources and wherein the mobile terminal further comprises a controller configured to: control the display to operate in one of operation states including a first state, in which all of the plurality of light sources are activated such that the entire display is illuminated, and a second state, in which at least one light source corresponding to a radiation portion is selectively activated such that a portion of the display is illuminated.