| 摘要 |
An organic light emitting device includes a substrate, first and second signal lines formed on the substrate, a switching thin film transistor ("TFT") connected to the first and second signal lines and including a first semiconductor, a driving TFT including a second semiconductor, an etch stopper formed on the second semiconductor, driving input and driving output electrodes overlapping the etch stopper and the second semiconductor and opposite to each other with respect to the etch stopper, and a driving control electrode connected to the switching TFT and overlapping the second semiconductor, a first electrode connected to the driving output electrode, a second electrode opposite to the first electrode, and an organic light emitting member, wherein at least one of the etch stopper, the driving input electrode, and the driving output electrode is symmetrical with respect to one straight line.
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