A display apparatus (1, 301) comprising: a liquid crystal panel (10, 310) configured to display an image; a light guide plate (60, 160, 260, 360) configured to guide light toward the liquid crystal panel; and a light source (91, 191, 291, 381) positioned adjacent to a side of the light guide plate, wherein the light guide plate comprises a plurality of quantum dot capsules (72, 366) dispersed inside the light guide plate, the plurality of quantum dot capsules configured to change a color of light emitted from the light source; wherein each of the plurality of quantum dot capsules (72, 366) comprises: a quantum dot resin comprising a plurality of quantum dots (74, 75); and a protection layer coated on a surface of the quantum dot resin characterized in that the light source (91, 191, 291, 381) includes a first light source positioned adjacent to a first side of the light guide plate and a second light source positioned adjacent to a second side of the light guide plate, the second side being opposite to the first side, wherein the light guide plate (60, 160, 260, 360) comprises a first incident surface, which faces the first light source and to which light emitted from the first light source is incident, and a second incident surface which faces the second light source and to which light emitted from the second light source is incident, wherein the light guide plate (60, 160, 260, 360) further comprises an exit surface which faces the liquid crystal panel (10, 310) and through which light, which is incident from the light source, exits from the light guide plate, and a reflection surface being flat and opposite to the exit surface, and wherein a number of the plurality of quantum dot capsules (72, 366) per a unit volume is greater at a position toward a center portion of the light guide plate than at a position toward the first incident surface or the second incident surface. a liquid crystal panel (10, 310) configured to display an image; a light guide plate (60, 160, 260, 360) configured to guide light toward the liquid crystal panel; and a light source (91, 191, 291, 381) positioned adjacent to a side of the light guide plate, wherein the light guide plate comprises a plurality of quantum dot capsules (72, 366) dispersed inside the light guide plate, the plurality of quantum dot capsules configured to change a color of light emitted from the light source; wherein each of the plurality of quantum dot capsules (72, 366) comprises: a quantum dot resin comprising a plurality of quantum dots (74, 75); and a protection layer coated on a surface of the quantum dot resin characterized in that the light source (91, 191, 291, 381) includes a first light source positioned adjacent to a first side of the light guide plate and a second light source positioned adjacent to a second side of the light guide plate, the second side being opposite to the first side, wherein the light guide plate (60, 160, 260, 360) comprises a first incident surface, which faces the first light source and to which light emitted from the first light source is incident, and a second incident surface which faces the second light source and to which light emitted from the second light source is incident, wherein the light guide plate (60, 160, 260, 360) further comprises an exit surface which faces the liquid crystal panel (10, 310) and through which light, which is incident from the light source, exits from the light guide plate, and a reflection surface being flat and opposite to the exit surface, and wherein a number of the plurality of quantum dot capsules (72, 366) per a unit volume is greater at a position toward a center portion of the light guide plate than at a position toward the first incident surface or the second incident surface. a quantum dot resin comprising a plurality of quantum dots (74, 75); and a protection layer coated on a surface of the quantum dot resin characterized in that the light source (91, 191, 291, 381) includes a first light source positioned adjacent to a first side of the light guide plate and a second light source positioned adjacent to a second side of the light guide plate, the second side being opposite to the first side, wherein the light guide plate (60, 160, 260, 360) comprises a first incident surface, which faces the first light source and to which light emitted from the first light source is incident, and a second incident surface which faces the second light source and to which light emitted from the second light source is incident, wherein the light guide plate (60, 160, 260, 360) further comprises an exit surface which faces the liquid crystal panel (10, 310) and through which light, which is incident from the light source, exits from the light guide plate, and a reflection surface being flat and opposite to the exit surface, and wherein a number of the plurality of quantum dot capsules (72, 366) per a unit volume is greater at a position toward a center portion of the light guide plate than at a position toward the first incident surface or the second incident surface.