A display apparatus (1, 500, 600), comprising: a top chassis (70, 570); a bottom chassis; a liquid crystal panel configured to display images; a light source (31, 331), disposed at a side of the liquid crystal panel, configured to generate light; a light guide plate configured to guide the light radiated from the light source to the liquid crystal panel, the light guide plate comprising a front surface facing the liquid crystal panel; a supporting member having an outer frame unit (81, 572) and a middle supporting unit (85, 576, 86) to support a front edge unit of the light guide plate while extended toward an inner side from the outer frame unit (81, 572); at least one optical sheet (61, 62) is disposed at a front of the light guide plate; a supplement member coupled to the middle supporting unit (85, 576, 86) and configured to reflect the light radiated from the light source (31, 331), wherein: the supplement member is formed by elastic material; the supplement member is closely attached to an edge of the light guide plate, and is elastically deformed by the pressure of the light guide plate to wrap around an edge of the light guide plate; and the supplement member contacts the light guide plate through a protective coating layer, the protective coating layer protecting the light guide plate from friction between the light guide plate and the supplement member. a top chassis (70, 570); a bottom chassis; a liquid crystal panel configured to display images; a light source (31, 331), disposed at a side of the liquid crystal panel, configured to generate light; a light guide plate configured to guide the light radiated from the light source to the liquid crystal panel, the light guide plate comprising a front surface facing the liquid crystal panel; a supporting member having an outer frame unit (81, 572) and a middle supporting unit (85, 576, 86) to support a front edge unit of the light guide plate while extended toward an inner side from the outer frame unit (81, 572); at least one optical sheet (61, 62) is disposed at a front of the light guide plate; a supplement member coupled to the middle supporting unit (85, 576, 86) and configured to reflect the light radiated from the light source (31, 331), wherein: the supplement member is formed by elastic material; the supplement member is closely attached to an edge of the light guide plate, and is elastically deformed by the pressure of the light guide plate to wrap around an edge of the light guide plate; and the supplement member contacts the light guide plate through a protective coating layer, the protective coating layer protecting the light guide plate from friction between the light guide plate and the supplement member. the supplement member is formed by elastic material; the supplement member is closely attached to an edge of the light guide plate, and is elastically deformed by the pressure of the light guide plate to wrap around an edge of the light guide plate; and the supplement member contacts the light guide plate through a protective coating layer, the protective coating layer protecting the light guide plate from friction between the light guide plate and the supplement member.