Patent ID: 7420537

Claim:
A liquid crystal display, comprising: an active area having a plurality of pixel bands for displaying an image; an input signal line for inputting image data; a plurality of shift registers coupled in series, for sequentially shifting and outputting a video control signal; a plurality of horizontal switches, each of the horizontal switches being coupled to one corresponding shift registers and to one of the corresponding pixel bands and to conduct the input signal lines with the pixel bands based upon the video control signal, so as to provide the image data into the pixel bands; a dummy pixel band; a dummy shift register coupled to one terminal of the shift registers for sequentially shifting and outputting the video control signal; a NOR gate logic switch device coupled to the dummy shift register and the shift registers; and a dummy horizontal switch coupled to the dummy pixel band and to the dummy shift register, for conducting the input signal line and the dummy pixel band according to the video control signal.