An organic light emitting display device, comprising: a substrate; an anode electrode on the substrate; an auxiliary electrode on the substrate in a same layer as the anode electrode; a partition supporter on the auxiliary electrode; a partition on the partition supporter; an organic emitting layer on the anode electrode and on the partition such that portions separated on the partition are separated from other portions; a cathode electrode connected with the organic emitting layer and the auxiliary electrode; a bank for exposing the auxiliary electrode; an auxiliary electrode open area for exposing the auxiliary electrode between a lateral surface of the partition and a lateral surface of the bank; a gap space (350b, 350c) between a lower surface of the partition and the auxiliary electrode by use of the partition supporter, wherein the cathode electrode is connected to the auxiliary electrode via the auxiliary electrode open area and the gap space (350b, 350c); wherein a lower surface of the partition supporter includes: a pair of short sides (401, 402); and a pair of long sides (403, 404) connecting the pair of short sides (401, 402) and including at least one inclined surface, wherein a lateral surface of the partition supporter includes: a first partition supporter area having a first height; and a second partition supporter area having a second height, and wherein the second height is larger than the first height; characterised in that the gap space (350b, 350c) has a first height in the first partition supporter area and a second height in the second partition supporter area, and in that the first height is different from the second height; wherein a height of the gap space (350b, 350c) gradually increases from the first height to the second height. an anode electrode on the substrate; an auxiliary electrode on the substrate in a same layer as the anode electrode; a partition supporter on the auxiliary electrode; a partition on the partition supporter; an organic emitting layer on the anode electrode and on the partition such that portions separated on the partition are separated from other portions; a cathode electrode connected with the organic emitting layer and the auxiliary electrode; a bank for exposing the auxiliary electrode; an auxiliary electrode open area for exposing the auxiliary electrode between a lateral surface of the partition and a lateral surface of the bank; a gap space (350b, 350c) between a lower surface of the partition and the auxiliary electrode by use of the partition supporter, wherein the cathode electrode is connected to the auxiliary electrode via the auxiliary electrode open area and the gap space (350b, 350c); wherein a lower surface of the partition supporter includes: a pair of short sides (401, 402); and a pair of long sides (403, 404) connecting the pair of short sides (401, 402) and including at least one inclined surface, a pair of short sides (401, 402); and a pair of long sides (403, 404) connecting the pair of short sides (401, 402) and including at least one inclined surface, wherein a lateral surface of the partition supporter includes: a first partition supporter area having a first height; and a second partition supporter area having a second height, and a first partition supporter area having a first height; and a second partition supporter area having a second height, and wherein the second height is larger than the first height; characterised in that the gap space (350b, 350c) has a first height in the first partition supporter area and a second height in the second partition supporter area, and in that the first height is different from the second height; wherein a height of the gap space (350b, 350c) gradually increases from the first height to the second height.