| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technique for correctly reproducing luminous gradations of a light emitting element by compensating the threshold voltage of a driving transistor. <P>SOLUTION: During a programming period Tpr, 1st and 2nd switching transistors are set to the ON-state in order to make a capacitive element hold a charge amount responsive to a data signal voltage Vdata. Also, when the programming period Tpr is changed over to a light emitting period Tem, the 1st and 2nd switching transistors are switched to the OFF-state, and thereby the capacitive element is made to hold a charge amount which is independent of the threshold voltage of the driving transistor but dependent on the data signal voltage. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
