| 摘要 |
<P>PROBLEM TO BE SOLVED: To make luminance uniform among respective pixels in a luminescent display device using a luminescent element. <P>SOLUTION: The luminescent display device is equipped with a transistor M1 which has its gate electrode connected to Cvth and turns on and off current supply from a power supply line to the luminescent element OLED, a 1st switching part (M4, M5) which charges the Cvth with a voltage corresponding to a threshold voltage for turning on the M1 in response to a selection signal from a scanning line before a current scanning line, M3 which transmits a data signal from a data line Data in response to a selection signal from the current scanning line, Cst which is coupled between the power supply line and an M2 and is charged with a voltage corresponding to the data signal according to the M2, and a 2nd switching part (M2) which electrically disconnects the M1 and luminescent element in response to a control signal while the Cvth is charged with the voltage. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
