An organic light emitting device comprising: a substrate; a first electrode (201, 501) provided on the substrate, and including two or more conductive units provided to be separated from each other and a conductive connection connected to the conductive units; an auxiliary electrode provided on the substrate, and disposed to be separated from the conductive units; an insulation layer provided on the conductive connection or the auxiliary electrode, and including one or more contact holes exposing one region of the conductive connection or the auxiliary electrode; a second electrode provided opposite to the first electrode (201, 205); and one or more organic material layers provided between the first electrode (201, 501) and the second electrode, wherein the conductive connection is electrically connected to the auxiliary electrode through the contact holes; characterized in that the conductive connection includes two or more high resistance regions in which a length of a current flowing direction is longer than a width of a direction vertical thereto, such that when any one high resistance region of the conductive connection connected to a conductive unit is disconnected, the conductive unit normally operates by the remaining high resistance regions, wherein each of the conductive units is electrically connected to an auxiliary electrode by a high resistance region having the lowest resistance value among the two or more high resistance regions, wherein the two or more high resistance regions of the conductive connection follow a contour of the auxiliary electrode, and wherein the high resistance region includes a region in which a ratio of the length and the width is 10:1 or greater. a substrate; a first electrode (201, 501) provided on the substrate, and including two or more conductive units provided to be separated from each other and a conductive connection connected to the conductive units; an auxiliary electrode provided on the substrate, and disposed to be separated from the conductive units; an insulation layer provided on the conductive connection or the auxiliary electrode, and including one or more contact holes exposing one region of the conductive connection or the auxiliary electrode; a second electrode provided opposite to the first electrode (201, 205); and one or more organic material layers provided between the first electrode (201, 501) and the second electrode, wherein the conductive connection is electrically connected to the auxiliary electrode through the contact holes; characterized in that the conductive connection includes two or more high resistance regions in which a length of a current flowing direction is longer than a width of a direction vertical thereto, such that when any one high resistance region of the conductive connection connected to a conductive unit is disconnected, the conductive unit normally operates by the remaining high resistance regions, wherein each of the conductive units is electrically connected to an auxiliary electrode by a high resistance region having the lowest resistance value among the two or more high resistance regions, wherein the two or more high resistance regions of the conductive connection follow a contour of the auxiliary electrode, and wherein the high resistance region includes a region in which a ratio of the length and the width is 10:1 or greater.