| 摘要 |
This invention relates to a driving apparatus for an electro luminescence panel that is capable of preventing deterioration of a picture quality caused by the reduction of a driving electric current which occurs when a gate signal is turned off. A driving apparatus of an electro luminescence panel according to the present invention includes a power supply VDD for supplying power source to the electro luminescence cell OLED, a first TFT connected between the power supply and the data line, a second TFT connected between the power supply and the electro luminescence cell OLED, a third TFT connected between the power supply and the first TFT for switching according to a signal on the gate line, a fourth TFT connected between gate electrodes of the first and second PMOS TFTs and the data line for switching according to a signal on the gate line and a path of a data signal from the data line, and a capacitor connected between the gate electrodes of the first and second PMOS TFT's and the power supply.
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