Patent ID: 8392775

Claim:
A shift register circuit comprising a plurality of shift register stages, each of the shift register stages comprising: a scan signal generation module, electrically connected to a first scan line and a second scan line, for generating a first scan signal and a second scan signal which have pulses opposite to each other according to a first clock and a second clock having a phase opposite to the first clock, the first and second scan signals being furnished to the first and second scan lines respectively, wherein a pulse width of the first scan signal is substantially twice as wide as a pulse width of the first clock, and the scan signal generation module comprises: a first pull-down unit for pulling down an Nth start pulse signal according to a driving control voltage and the first clock; a first pull-up unit for pulling up the Nth start pulse signal according to an (N+1)th start pulse signal; a first input unit, electrically connected to the first pull-down unit, for inputting an (N−1)th start pulse signal to become the driving control voltage according to the second clock; a first control unit, electrically connected to the first input unit, for generating a first control signal according to the driving control voltage; a second pull-down unit, electrically connected to the first scan line, for pulling down the first scan signal according to the driving control voltage or the (N−1)th start pulse signal; a buffer unit, electrically connected to the first input unit and the second pull-down unit, for forwarding the driving control voltage having low voltage level to the second pull-down unit; a second input unit, electrically connected to the second pull-down unit, for forwarding the (N−1)th start pulse signal to the second pull-down unit according to the second clock; a second pull-up unit, electrically connected to the first scan line and the first control unit, for pulling up the first scan signal according to the first control signal; a third pull-up unit, electrically connected to the first control unit, for pulling up the driving control voltage and the Nth start pulse signal according to the first control signal; and a fourth pull-up unit, electrically connected to the second scan line and the first input unit, for pulling up the second scan signal according to the driving control voltage; and an emission signal generation module, electrically connected to a transmission line, for generating an emission signal according to a third clock and a fourth clock having a phase opposite to the third clock, the emission signal being furnished to the transmission line, wherein a pulse width of the emission signal is substantially identical to a pulse width of the third clock.