P-191: Embedded Nano-Si Optical Sensor in TFT-LCDs Technology and Integrated as Touch-Input Display

We report the controllable UV-Visible-to-NIR Si-nanocrystals photonic sensor, photo-spectrum band-gap engineering technology, and integrated in TFT-LCD as multi-function intelligent display. Photonic Sensor using Si-nanocrystals as sensitizer sandwiched between two electrodes structure is proposed to integrate optical input function for new application in next generation mobile devices. The optical input function, used for image scanner, fingerprint recognition, and touch-input application, are achieved by integrating these image sensor elements within each display pixel. A 2-transistor (2T) active pixel sensor (APS) is used to integrate a VGA (> 250 dpi) image sensor within an LCD panel.