Patent ID: 6724363
Filing Date: 2004-04-20
Classification: G09G,G11C

Abstract:
A two-way shift register, comprising:a shift register section for switching an input side end to an output side end or vice versa in accordance with a switching signal, and for transferring an input signal through a plurality of flip-flops from the end that has become an input-side end to the end that has become an output-side end; and level shifters provided respectively adjacent to said ends of said shift register section such that said level shifter adjacent said end that has become an input-side end of said shift register section boosts a received signal and outputs the same as said input signal to an input at said end that has become an input-side end of said shift register section, while said level shifter adjacent to said end that has become an output-side end of said shift register section is stopped from operating to provide a boosted received signal to an input at said end that has become an output-side end of said shift register section.