ORGANIC LIGHT EMITTING DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an organic light emitting display device.SOLUTION: The organic light emitting display device according to the present invention includes: a substrate; a scan line formed on the substrate to transfer a scan signal; a data line and a driving voltage line which cross the scan line to transfer a data signal and a driving voltage respectively; a switching thin film transistor coupled to the scan line and the data line; a driving thin film transistor coupled to a switching drain electrode of the switching thin film transistor; and an organic light emitting diode coupled to a driving drain electrode of the driving thin film transistor. A driving semiconductor layer of the driving thin film transistor is bent. Consequently, since a driving channel region of the driving semiconductor layer can be longitudinally formed by forming the driving semiconductor layer including a plurality of bent portions, a driving range of a gate voltage applied to a driving gate electrode can be broadened in the organic light emitting display device.