| 摘要 |
A thin film transistor, a method of fabricating the same, and an organic light emitting diode display device including the same, which allow a size of a grain of a channel region to be increased, can effectively protect the channel region of a semiconductor layer at the time of etching process, and can reduce processing cost. The thin film transistor includes a substrate, a gate electrode disposed on the substrate, a gate insulating layer disposed on the gate electrode, a semiconductor layer pattern disposed on the gate insulating layer and including a channel region, a source region and a drain region, an etch stop layer pattern disposed on the channel region of the semiconductor layer pattern and having a thickness of 20 to 60nm, and source and drain electrodes disposed on the source and drain regions of the semiconductor layer pattern, respectively.
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