Patent ID: 8008611
Filing Date: 2011-08-30
Classification: G09G

Abstract:
1. A photo sensor, comprising: a first transistor whose first electrode is coupled to a first power source, whose second electrode is coupled to a first node, and whose gate electrode is coupled to a second node; a photo diode whose first electrode is coupled to the first power source and whose second electrode is coupled to the second node; a second transistor whose first electrode is coupled to a cathode electrode of the photo diode, whose second electrode is coupled to the second node, and whose gate electrode is coupled to a first control line; a third transistor whose first electrode is coupled to the second node, whose second electrode is coupled to the first node, and whose gate electrode is coupled to a reset signal line; a fourth transistor whose first electrode is coupled to the first node, whose second electrode is coupled to a first output end, and whose gate electrode is coupled to the reset signal line; a fifth transistor whose first electrode is coupled to the first node, whose second electrode is coupled to a second output end, and whose gate electrode is coupled to a second control line; and a first capacitor whose first electrode is coupled to the first power source and whose second electrode is coupled to the second node.