| 摘要 |
PROBLEM TO BE SOLVED: To reduce the adverse effect caused by a parasitic capacitor connected to a signal line of a driving circuit which drives current driven elements such as organic EL (light emitting) being assembled into an active matrix type image display device or the like and to drive the elements with an appropriate current even though a signal current is minute. SOLUTION: An auxiliary transistor 12 having an n times current driving capability of a driving transistor 7 is connected to the transistor 7 in parallel. In a portion (an acceleration interval) of a selection interval, a drain current is made to flow in the transistor 12 also and a signal current itself, which flows in a signal line 3, is made to (n+1) times. |
