Patent ID: 6181314
Filing Date: 2001-01-30
Classification: G09G

Abstract:
A liquid crystal display device having output buffers corresponding to column lines, comprising:analog switches provided between output ends of said output buffers and said column lines respectively; anda switch controller for on-off controlling said analog switches, wherein each of said output buffers includes a source follower circuit which comprises: a first capacitor whose one end is connected to a gate of a source follower transistor; a first analog switch connected between the gate of said source follower transistor and a precharge power supply; a second analog switch connected between the other end of said first capacitor and the source of said source follower transistor, and interlocked with said first analog switch; a third analog switch connected between the other end of said first capacitor and a signal source, and actuated inversely to the on-off action of said first and second analog switches.