Patent ID: 8643636

Claim:
A driving circuit for driving a display panel comprising: a shift register formed on the display panel; the shift register including a connection of a plurality of stages, a first stage thereof including a first transistor and a second transistor, a second stage thereof including a third transistor and a fourth transistor, the first transistor including a control electrode, an input electrode and an output electrode; a first synchronous pulse input line connected to the input electrode of the first transistor; the third transistor including a control electrode, an input electrode and an output electrode; a second synchronous pulse input line connected to the input electrode of the third transistor; and wherein a voltage of the control electrode of the first transistor is boosted by a voltage of the first synchronous pulse changing from a low level to a high level, the second transistor connects the control electrode of the first transistor and a constant voltage line when the second transistor is in an on state, a voltage of the control electrode of the third transistor is boosted by a voltage of the second synchronous pulse changing from a low level to a high level, the fourth transistor connects the control electrode of the third transistor and a constant voltage line when the fourth transistor is in an on state, and the first stage outputs a signal for switching the fourth transistor to an off state.