Patent ID: 8599179
Filing Date: 2013-12-03
Classification: G09G

Abstract:
1. A source driver integrated circuit with an improved slew rate comprising: a plurality of first digital-to-analog converters configured to output first polarity voltages; a plurality of second digital-to-analog converters configured to output second polarity voltages; a plurality of first output buffers configured to receive signals outputted from the first digital-to-analog converters, and to either drive a plurality of first panel loads through a plurality of first data lines or to drive a plurality of second panel loads through a plurality of second data lines; a plurality of second output buffers configured to receive signals outputted from the second digital-to-analog converters, and to either drive the plurality of second panel loads through the plurality of second data lines or to drive the plurality of first panel loads through the plurality of first data lines; a first switching unit configured to select one of outputs of the first output buffer and the second output buffer, and to transfer the selected output to the first panel load or the second panel load, respectively; a second switching unit configured to feed the output of the first output buffer and the output of the second output buffer, which have been transferred through the first switching unit, back to the first output buffer and the second output buffer, respectively; and a charge-sharing switch configured to have a first terminal connected to the first data line and a second terminal connected to the second data line.