Patent ID: 7643022

Claim:
A panel source driver circuit, comprising: a first data register; a second data register; a common data demultiplexer coupled to the first and second data register that is configured to provide control data from a first input of the demultiplexer to the first data register and control data from a second input of the demultiplexer to the second data register in a first operation mode and to provide control data from the second input to the first data register and control data from the first input to the second register in a second operation mode responsive to an operation mode select signal; wherein a single portion of the common data demultiplexer controlled by the operation mode select signal provides control data to at least a pair of data registers; a first decoder coupled to an output of the first data register that is configured to select one of a plurality of first voltages having different levels responsive to the output of the first data register and to output the selected first voltage; and a second decoder coupled to an output of the second data register that is configured to select one of a plurality of second voltages having different levels in response to the output of the second data register and to output the selected second voltage.