Patent ID: 7843415

Claim:
A source driver comprising: a control unit configured to compare a frame count value with a predetermined value N, N being a natural number larger than two, said control unit configured to output a data select signal and a driver control signal based on said comparison, said data select signal including a black data display signal and a multiplexer selecting signal; a data selecting unit connected to said control unit, configured to output one of input data and black data in response to said data select signal, and comprising; a black data generating unit configured to perform a logic operation on the input data and the black data display signal to generate first data and inverted first data, said first data being one of the input data and the black data, and a multiplexer connected to said black data generating unit and configured to select one of the first data and the inverted first data in response to said multiplexer selecting signal to output selected data as second data; a gamma circuit connected to said data selecting unit and configured to generate a grayscale voltage based on selected data from said data selecting unit; a level shifter connected to said gamma circuit and configured to generate a driving voltage based on said grayscale voltage; and a driving buffer unit disposed between said level shifter and said control unit, said driving buffer unit configured to provide an output voltage based on said driving voltage to a data line of a display device in response to said driver control signal.