A DATA DRIVER CIRCUIT FOR USE WITH AN LCD DISPLAY

摘要

A data driver circuit (25) and system driving scheme that can be integrated directly onto a display substrate (14) to reduce the cost of the peripheral integrated circuits and the hybrid assembly needed by unscanned active matrix liquid crystal displays to connect them to the array. A demultiplexer circuit (102) is deposited on the display (14) for demultiplexing a group of Y columns of multiplexed video data input signals to X groups of Y pixel capacitors (94, 96...100) that are also deposited on the substrate (14) in Z rows. In addition, a data driver circuit (12) provides voltage signals to precharge the pixel capacitors (94, 96...100) to a first voltage level in a first time period such that video data input signals coupled thereto in a multiplexed fashion during a second time period cause the pixel capacitors (94, 96...100) to store to a second predetermined voltage level to provide a video display as the rows of pixels are sequentially scanned.