A light emitting element display device is disclosed. In one aspect, the display includes a first pixel column including a plurality of pixels, a second pixel column including a plurality of pixels disposed substantially parallel to the first pixel column, a first transmission line between the first and second pixel columns, a second transmission line disposed substantially parallel to the first transmission line, and a power supply connected to any one of the first and second transmission lines so as to supply driving power. The first and second transmission lines may be connected to each other, at least one of the pixels of the first pixel column may be connected to the second transmission line, and at least one of the pixels of the second pixel column may be connected to the first transmission line.