Patent ID: 7365727
Filing Date: 2008-04-29
Classification: G09G,G11C

Abstract:
1. A two-way shift register, comprising: a shift register section for transferring a signal along a signal transfer path in a shift direction between a first end portion and a second end portion thereof or vice versa in accordance with a switching signal having two states; said shift register section including: a plurality of flip-flops which operates in synchronization with a clock signal, wherein first and second level shifters respectively proximally associated with said first and second ones of said flip-flops for boosting a received signal according to the state of said switching signal such that (i) when said switching signal has said one of its states, said first level shifter outputs a boosted received signal as an input signal to said first one of said flip-flops and (ii) when said switching signal has the other of its states, said second level shifter outputs a boosted received signal as an input to said second one of said flip-flops.