APPARATUS AND METHOD FOR PROVIDING A GRAY SCALE CAPABILITY IN A LIQUID CRYSTAL DISPLAY UNIT

摘要

A liquid crystal display is described that includes gray scale capability. Each pixel of the display is subdivided into a plurality of subpixels. Each subpixel includes an effective capacitor, with the liquid crystal material contained between the effective capacitor plates, and includes a control capacitor coupled in series with the effective capacitor. By controlling the capacitance of the control capacitors of the subpixels, selected subpixels can be activated as a function of the voltage applied across the capacitor. By controlling the number of subpixels that are activated by the applied voltage, a gray scale capability can be provided for a liquid crystal display.