Patent ID: 7317454
Filing Date: 2008-01-08
Classification: G09G

Abstract:
1. An energy recovery circuit of a display device, which provides a driving voltage to a display panel, the energy recovery circuit comprising: a first capacitor for charging a voltage of ½ sustain voltage recovered from the display panel; a switch circuit connected between the first capacitor and the display panel, the switch circuit having a plurality of switches for switching current flows when charging/discharging the first capacitor and the display panel, and having a single inductor serially connected to the display panel to form an LC resonance circuit; a second capacitor connected between the switches of the switch circuit, for discharging its charged voltage of ½ sustain voltage to a first end of the display panel along with the voltage discharged from the first capacitor to the first end of the display panel when charging the display panel; and a power supply for providing a voltage to the first and second capacitors, wherein the switch circuit includes: