| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image display device with which writing of a voltage including the threshold voltage fluctuation component of a driver element is possible without using the current source to be exclusively used. <P>SOLUTION: The image display device is equipped with an organic EL element 1, a thin-film transistor (TFT) 2, and a capacitor 3 in which the prescribed voltage is written in a voltage writing process. Also, the device is equipped with a switching element 4 which controls the conduction state between the gate and drain of the TFT 2, a switching element 5 which changes the path of the current flowing through the TFT 2 at the time of voltage writing and light emission, a current determining section 6 which determines the value of the current to be passed to the TFT 2 at the time of voltage writing based on the applied voltage, and a control section 7 which controls the switching elements 4 and 5 and the current determining section 6. The current determining section 6 operates based on the applied voltage, thereby making possible to rapidly supply the desired current to the driver element at the time of voltage writing. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
