| 摘要 |
<p>PURPOSE: An organic electroluminescent display device is provided to minimize the electrical characteristic deviation of a driving thin film transistor due to a manufacturing process and deteriorations in operating the driving thin film transistor by removing a threshold voltage component of the driving thin film transistor. CONSTITUTION: An organic electro luminescence device(OLED) receives a driving voltage. A first switching thin film transistor(S1) receives a data voltage and is switch-controlled by a scan signal. A driving thin-film transistor supplies a driving current to the organic electro luminescence device in response to the data voltage from the first switching thin film transistor. A second switching thin film transistor(S2) receives a first initial voltage and supplies the first initial voltage to a source of the driving thin-film transistor. A third switching thin film transistor(S3) receives a second initial voltage and supplies the second initial voltage to a drain of the driving thin-film transistor. A fourth switching thin film transistor(S4) receives VSS and controls the driving current to flow in the driving transistor.</p> |
