Shift register unit and signal driving circuit using the same

Details Shift register unit and signal driving circuit using the same Shift register unit and signal driving circuit using the same

2006-04-11

2006-04-11

Wells, Kenneth B. (Department: 2816)

Electrical pulse counters, pulse dividers, or shift registers: c

Shift register

C377S067000

Reexamination Certificate

active

07027550

ABSTRACT:
A shift register unit. The shift register unit outputs a shift register signal according to a clock signal, an inverse clock signal and a start signal. The shift register has first and second clock inversion circuits, and an inverter. In the first clock inversion circuit, a third PMOS transistor has a third source coupled to the first voltage, a third gate and a third drain. A fourth PMOS transistor has a fourth source coupled to the third drain, a fourth gate and a fourth drain coupled to the second voltage. A fifth PMOS transistor has a fifth source coupled to the third drain, a fifth drain coupled to the first gate, and a fifth gate. A sixth PMOS transistor having a sixth source coupled to the third gate, a sixth drain coupled to the second gate, and a sixth gate coupled to the fifth gate.

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