Patent ID: 8013825

Claim:
A video system comprising: a liquid crystal display that displays a video frame including: a panel of pixels arranged in rows and columns, each row corresponding to a phase of a plurality of addressing phases, and at least one phase of the plurality of addressing phases in the panel being included in the video frame; a write rows unit configured to select the row during a row time and apply an analog voltage level corresponding to image data to be displayed, on each pixel in the selected row; an illumination unit, including a light box, configured to illuminate the pixels; and a precharge unit configured to precharge the pixels in the display, and to apply a precharge voltage onto all pixels, the precharge being activated in sequence at the beginning of each addressing phase before the write rows unit selects the row, and the precharge unit including a precharge circuit comprising a plurality of row transistors, one for each row, and a plurality of column transistors, one for each column, the row transistors and column transistors being activated simultaneously in the precharging performed by the precharge unit, the row transistors selecting all rows in the panel simultaneously, and the column transistors applying a precharge voltage to all columns simultaneously in response to the activation of the row and column transistors.