Patent ID: 6784861
Filing Date: 2004-08-31
Classification: G09G

Abstract:
A liquid-crystal display (LCD) device comprising:a LCD panel having data electrodes for receiving pixel data signals, scanning electrodes for receiving scanning signals, and pixel regions located at intersections of the data electrodes and the scanning electrodes; part of the pixel regions being chosen by the scanning signals; the pixel data signals being applied to the part of the pixel regions, displaying images corresponding to the pixel data signals applied; a data electrode driver circuit for receiving an image input signal to be synchronized with a horizontal scanning signal, for polarization-reversing the pixel data signals corresponding to the image input signal based on a polarization reverse signal, and for transmitting the pixel data signals thus polarization-reversed to the data electrodes of the panel; a scanning electrode driver circuit for transmitting scanning signals to the scanning electrodes of the panel to be synchronized with a vertical scanning signal; and a controller circuit for outputting the image input signal, the polarization reverse signal, the horizontal scanning signal, and the vertical scanning signal; wherein the controller circuit comprises a first interface circuit for receiving the polarization reverse signal and the horizontal scanning signal in parallel in such a way that the polarization reverse signal and the horizontal scanning signal have their active mode periods at different timings, for generating a serial signal from the polarization reverse signal and the horizontal scanning signal, and for transmitting the serial signal to the data electrode driver circuit by way of a transmission line or lines; and wherein the data electrode driver circuit comprises a second interface circuit for regenerating the polarization reverse signal and the horizontal scanning signal in parallel from the serial signal.