When a switching TFT is switched on, a data voltage on a data line is stored in a storage capacitor as a gate voltage of a driver TFT. In this state, a voltage on a pulse drive line is caused to fall. AMOS type capacity element having a second electrode connected to a reference voltage is connected to...http://www.google.de/patents/US7324075?utm_source=gb-gplus-sharePatent US7324075 - Pixel circuit and display device
