Patent ID: 8072408
Filing Date: 2011-12-06
Classification: G09G

Abstract:
1. A liquid crystal display device, comprising: a liquid crystal panel having a data line group; a data driver configured to drive said data line group of said liquid crystal panel by using a dot inversion driving method; a power recovery circuit having an inductor configured to form an LC resonance circuit together with a capacitance of said data line group, and to collect electric power from said capacitance; and a power supply circuit configured to supply electric power used in said dot inversion driving to said data driver, said power supply circuit comprising a positive polarity side power supply and a negative polarity side power supply that are different from ground, wherein said power recovery circuit further comprises a plurality of first and second recovery diodes, and wherein electrodes of said inductor are respectively connected to said positive polarity side power supply and said negative polarity side power supply of said power supply circuit through said plurality of first recovery diodes, and further connected through power recovery switches and said plurality of second recovery diodes to the ground.