A display apparatus comprising: a back-light unit including: a light-source module configured to emit light and comprising: a driving voltage line on a light-source substrate; a lower insulating layer on the driving voltage line; a plurality of light-emitting chips on the lower insulating layer; a driving chip spaced apart from the plurality of light-emitting chips; a plurality of emission connecting lines electrically connecting respective light-emitting chips of the plurality of light-emitting chips to the driving voltage line and the driving chip; and a driving dummy pattern between light-emitting chips of the plurality of light-emitting chips and between emission connecting lines of the plurality of emission connecting lines, wherein the plurality of light-emitting chips are non-overlapping with the driving voltage line, and the driving voltage line is electrically connected to the driving dummy pattern; and an optical sheet on the light-source module; and a liquid crystal panel on the optical sheet of the back-light unit, wherein the light-source module further includes: an upper insulating layer on the plurality of emission connecting lines and the driving dummy pattern, the upper insulating layer surrounding the plurality of light-emitting chips, wherein the optical sheet includes a reflective plate on the upper insulating layer, the reflective plate comprising a reflecting pattern having a conductive material and electrically connected to the driving dummy pattern, and a scattering layer that covers the reflecting pattern. a back-light unit including: a light-source module configured to emit light and comprising: a driving voltage line on a light-source substrate; a lower insulating layer on the driving voltage line; a plurality of light-emitting chips on the lower insulating layer; a driving chip spaced apart from the plurality of light-emitting chips; a plurality of emission connecting lines electrically connecting respective light-emitting chips of the plurality of light-emitting chips to the driving voltage line and the driving chip; and a driving dummy pattern between light-emitting chips of the plurality of light-emitting chips and between emission connecting lines of the plurality of emission connecting lines, wherein the plurality of light-emitting chips are non-overlapping with the driving voltage line, and the driving voltage line is electrically connected to the driving dummy pattern; and an optical sheet on the light-source module; and a light-source module configured to emit light and comprising: a driving voltage line on a light-source substrate; a lower insulating layer on the driving voltage line; a plurality of light-emitting chips on the lower insulating layer; a driving chip spaced apart from the plurality of light-emitting chips; a plurality of emission connecting lines electrically connecting respective light-emitting chips of the plurality of light-emitting chips to the driving voltage line and the driving chip; and a driving dummy pattern between light-emitting chips of the plurality of light-emitting chips and between emission connecting lines of the plurality of emission connecting lines, wherein the plurality of light-emitting chips are non-overlapping with the driving voltage line, and the driving voltage line is electrically connected to the driving dummy pattern; and a driving voltage line on a light-source substrate; a lower insulating layer on the driving voltage line; a plurality of light-emitting chips on the lower insulating layer; a driving chip spaced apart from the plurality of light-emitting chips; a plurality of emission connecting lines electrically connecting respective light-emitting chips of the plurality of light-emitting chips to the driving voltage line and the driving chip; and a driving dummy pattern between light-emitting chips of the plurality of light-emitting chips and between emission connecting lines of the plurality of emission connecting lines, wherein the plurality of light-emitting chips are non-overlapping with the driving voltage line, and the driving voltage line is electrically connected to the driving dummy pattern; and an optical sheet on the light-source module; and a liquid crystal panel on the optical sheet of the back-light unit, wherein the light-source module further includes: an upper insulating layer on the plurality of emission connecting lines and the driving dummy pattern, the upper insulating layer surrounding the plurality of light-emitting chips, wherein the optical sheet includes a reflective plate on the upper insulating layer, the reflective plate comprising a reflecting pattern having a conductive material and electrically connected to the driving dummy pattern, and a scattering layer that covers the reflecting pattern. an upper insulating layer on the plurality of emission connecting lines and the driving dummy pattern, the upper insulating layer surrounding the plurality of light-emitting chips, wherein the optical sheet includes a reflective plate on the upper insulating layer, the reflective plate comprising a reflecting pattern having a conductive material and electrically connected to the driving dummy pattern, and a scattering layer that covers the reflecting pattern.