A video display device comprising: a display panel that displays an image based on an image signal; a plurality of light source substrates disposed on a rear side of the display panel and arranged in a first direction, and in a second direction perpendicular to the first direction, each of the plurality of light source substrates including a plurality of light emitting elements and a plurality of driver elements for driving each of the plurality of light emitting elements ; a reflection sheet , made of one piece and made of polypropylene, in which hollow partitioning wall portions are formed, each of partitioning wall portions separates adjacent ones of the light emitting elements , and expands toward the display panel , the reflection sheet covering the plurality of light source substrates on the side toward the display panel except for portions provided with the light emitting elements ; wherein, for each of the plurality of light source substrates : the plurality of light emitting elements of said light source substrate is attached to a surface of said light source substrate on a side toward the display panel to emit light to the display panel ; and the plurality of driver elements of said light source substrate is attached to said surface of said light source substrate on the side toward the display panel in a portion surrounded by the corresponding partitioning wall portions ; and wherein the partitioning wall portions function as ribs, thereby increasing rigidity of the reflection sheet . a display panel that displays an image based on an image signal; a plurality of light source substrates disposed on a rear side of the display panel and arranged in a first direction, and in a second direction perpendicular to the first direction, each of the plurality of light source substrates including a plurality of light emitting elements and a plurality of driver elements for driving each of the plurality of light emitting elements ; a reflection sheet , made of one piece and made of polypropylene, in which hollow partitioning wall portions are formed, each of partitioning wall portions separates adjacent ones of the light emitting elements , and expands toward the display panel , the reflection sheet covering the plurality of light source substrates on the side toward the display panel except for portions provided with the light emitting elements ; wherein, for each of the plurality of light source substrates : the plurality of light emitting elements of said light source substrate is attached to a surface of said light source substrate on a side toward the display panel to emit light to the display panel ; and the plurality of driver elements of said light source substrate is attached to said surface of said light source substrate on the side toward the display panel in a portion surrounded by the corresponding partitioning wall portions ; and wherein the partitioning wall portions function as ribs, thereby increasing rigidity of the reflection sheet . the plurality of light emitting elements of said light source substrate is attached to a surface of said light source substrate on a side toward the display panel to emit light to the display panel ; and the plurality of driver elements of said light source substrate is attached to said surface of said light source substrate on the side toward the display panel in a portion surrounded by the corresponding partitioning wall portions ; and wherein the partitioning wall portions function as ribs, thereby increasing rigidity of the reflection sheet . <EOS>