To provide a shift register, a scan driving circuit and a display apparatus having the shift register.
In the shift register comprising a plurality of stages and outputting successively a plurality of output signals, a driving part outputs an output signal of the present stage responding to a second clock signal having a different phase from the first clock signal. In a charge part, electric charge is charged by a scan start signal or an output signal of one stage out of the previous stage. A discharge part discharges the electric charge charged to the charge part in accordance with an output signal of one stage out of the next stages. A holding part holds the output signal of the present stage within a first voltage. Therefore, floating of a gate of pull-up transistor due to parasitic capacitance between the gate and a drain of the pull-up transistor of the drive part outputting a scan signal can be prevented.
JPS58181321A | 1983-10-24 | |||
JP2006228312A | 2006-08-31 | |||
JP2007317344A | 2007-12-06 | |||
JP2007317288A | 2007-12-06 | |||
JP2002175695A | 2002-06-21 | |||
JPH05267636A | 1993-10-15 | |||
JPS52155928A | 1977-12-24 |
Tomoko Inazumi
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