An organic lighting apparatus comprising: a substrate; a lattice-shaped supply line arranged on the substrate and defining a plurality of light-emitting portions (120a, 120b, 120c, 120d); and a pad portion arranged on one edge of the substrate, wherein each of the light-emitting portions (120a, 120b, 120c, 120d) has a light-emitting area and a non-light-emitting area outside the light-emitting area, the light-emitting area having a structure in which a first electrode, an organic light-emitting layer and a second electrode are stacked on the substrate, the non-light-emitting area having a structure in which the supply line, the first electrode, an insulation layer, the organic light-emitting layer and the second electrode are stacked in this order on the substrate or the first electrode, the supply line, an insulation layer, the organic light-emitting layer and the second electrode are stacked in this order on the substrate; wherein the first electrode of each light-emitting portion (120a; 120b; 120c; 120d) includes an electric current injection line (140a; 140b; 140c; 140d) in the non-light-emitting area, wherein the electric current injection lines of at least two of the plurality of light emitting portions have different resistance values, wherein, when the electric current injection line (140a; 140b; 140c; 140d) is farther away from the side which the pad portion is arranged on, the electric current injection line becomes shorter, wherein a first insulator line is arranged on one side of the respective electric current injection line (140a; 140b; 140c; 140d), and the first insulator line fills a first etched line defined through the first electrode to separate parts of the first electrode belonging to the same light emitting portion, the first etched line surrounds the light-emitting area but has an open structure rather than a closed structure such that electric current is injected into the light-emitting area, wherein a second insulator line is arranged on the other side of the electric current injection line (140a; 140b; 140c; 140d), and the second insulator line fills a second etched line defined through the first electrode, the second etched line extends from an end of the first etched line and is arranged in parallel with at least part of the first etched line, and wherein a length and a resistance of the electric current injection line (140a; 140b; 140c; 140d) is determined by a length of the second insulator line. a substrate; a lattice-shaped supply line arranged on the substrate and defining a plurality of light-emitting portions (120a, 120b, 120c, 120d); and a pad portion arranged on one edge of the substrate, wherein each of the light-emitting portions (120a, 120b, 120c, 120d) has a light-emitting area and a non-light-emitting area outside the light-emitting area, the light-emitting area having a structure in which a first electrode, an organic light-emitting layer and a second electrode are stacked on the substrate, the non-light-emitting area having a structure in which the supply line, the first electrode, an insulation layer, the organic light-emitting layer and the second electrode are stacked in this order on the substrate or the first electrode, the supply line, an insulation layer, the organic light-emitting layer and the second electrode are stacked in this order on the substrate; wherein the first electrode of each light-emitting portion (120a; 120b; 120c; 120d) includes an electric current injection line (140a; 140b; 140c; 140d) in the non-light-emitting area, wherein the electric current injection lines of at least two of the plurality of light emitting portions have different resistance values, wherein, when the electric current injection line (140a; 140b; 140c; 140d) is farther away from the side which the pad portion is arranged on, the electric current injection line becomes shorter, wherein a first insulator line is arranged on one side of the respective electric current injection line (140a; 140b; 140c; 140d), and the first insulator line fills a first etched line defined through the first electrode to separate parts of the first electrode belonging to the same light emitting portion, the first etched line surrounds the light-emitting area but has an open structure rather than a closed structure such that electric current is injected into the light-emitting area, wherein a second insulator line is arranged on the other side of the electric current injection line (140a; 140b; 140c; 140d), and the second insulator line fills a second etched line defined through the first electrode, the second etched line extends from an end of the first etched line and is arranged in parallel with at least part of the first etched line, and wherein a length and a resistance of the electric current injection line (140a; 140b; 140c; 140d) is determined by a length of the second insulator line.