Patent ID: 7477227
Filing Date: 2009-01-13
Classification: G09G

Abstract:
1. A driving circuit comprising: a gray scale voltage selection circuit which receives a plurality of gray scale voltages to output a selected gray scale voltage based on a data signal to a first node; a first amplifier coupled between said first node and a second node; a first switch coupled between said second node and a third node; and a second switch coupled between said first node and said third node, during a first period of one horizontal sync period, said first switch is turned ON and gray scale voltage amplified by said first amplifier is applied to a corresponding data electrode and, during a second period after said first period of said one horizontal sync period, said first switch is turned OFF and said second switch is turned ON and said selected one gray scale voltage is applied, as it is, to said corresponding data electrode and a bias current is interrupted to put said first amplifier into a state of non-operation.