Patent ID: 7586475

Claim:
A circuit for driving a liquid crystal display device having a write mode and a liquid crystal module drive mode, comprising: a master that over-drives and provides adaptive brightness intensification; a slave that provides desired control data to the master; a writing circuit that controls writing of control data to the slave such that the write mode does not occur during the liquid crystal module drive mode; a connector that connects the writing circuit with a plurality of terminals of the slave that write the control data into the slave; and an internal power supply of a liquid crystal module that applies an internal supply voltage to the slave during the liquid crystal module drive mode, wherein the writing circuit applies about a ground potential to a write control terminal on the slave during a write mode and about an internal power supply voltage of the liquid crystal module is applied to the write control terminal during a liquid crystal module drive mode and wherein the connector had a write terminal connected with the write control terminal.