In an active matrix display device integrated with peripheral drive circuits, an image sensor is provided on the same substrate as a pixel matrix and peripheral drive circuits. The image sensor is formed on the substrate having pixel electrodes, pixel TFTs connected to the pixel electrodes and CMOS-TFTs...http://www.google.de/patents/US6784411?utm_source=gb-gplus-sharePatent US6784411 - Display device with a pixel matrix and a sensor over same substrate
