A display device according to the present disclosure comprises: a display panel; and a backlight for supplying light to the display panel, wherein the display panel includes: a base substrate having a plurality of thin film transistors; a color filter layer which includes a plurality of color filters arranged in a matrix shape and black matrices disposed between the plurality of the color filters, and is disposed on the base substrate; and a light-collecting layer disposed above or below the color filter layer and including a plurality of partition walls extending toward the black matrices.