Patent ID: 7616177
Filing Date: 2009-11-10
Classification: G09G

Abstract:
1. A pixel driving circuit, comprising: a storage capacitor having a first and second node; a transferring circuit coupled to the first node of the storage capacitor, the transferring circuit transferring a data signal or a variable reference signal to the first node of the storage capacitor, wherein the variable reference signal is a pulsed reference signal; a driving element having a first terminal coupled to a first fixed potential, a second terminal coupled to the second node of the storage capacitor, and a third terminal for outputting a driving current; a switching circuit, coupled to the third terminal of the driving element and the second node of the storage capacitor, capable of making the driving element diode-connected in one time period and allowing the driving current to be output to a display element in another time period; and a reference signal generator coupled to the transferring circuit, wherein the reference signal generator comprises: