Shift register

Details Shift register Shift register

2007-06-19

2007-06-19

Liang, Regina (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S098000, C377S064000

Reexamination Certificate

active

10747688

ABSTRACT:
A shift register includes stages shifting an input signal with phase-delayed control signals and first and second supply voltages, and for applying shifted input signals as output signals and as input signals of succeeding stages. Each of the stages includes a first controller selectively applying an input signal and a first supply voltage to a first node between first to third transistors; a second controller selectively applying the first and second supply voltages to a second node between fourth and fifth transistors; and an output buffer selectively applying a predetermined control signal and the first supply voltage as an output signal to a stage output line between sixth and seventh transistors, wherein the fifth transistor may be turned on to sustain a voltage present at the second node equal to the first supply voltage when the fourth transistor is turned off.

REFERENCES:
patent: 5701136 (1997-12-01), Huq et al.
patent: 6339631 (2002-01-01), Yeo et al.
patent: 6426743 (2002-07-01), Yeo et al.

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