Data driving device and display device including the same

A data driving device configured to output data signals to a switch circuit configured to select a plurality of first data lines connected to a plurality of first color subpixels and a plurality of second color subpixels for a first section in each horizontal period, and select a plurality of second data lines connected to a plurality of third color subpixels for a second section after the first section, comprising:

• a shift register configured to shift a source start pulse and sequentially generate a sampling pulse corresponding to source sampling clock signals;
• sampling latches configured to sequentially store first data corresponding to the plurality of first color subpixels and the plurality of second color subpixels and second data corresponding to the plurality of third color subpixels, in response to the sampling pulse;
• holding latches configured to substantially simultaneously receive the first data stored in the sampling latches corresponding to a first source output enable signal and substantially simultaneously receiving the second data stored in the sampling latches corresponding to a second source output enable signal;
• and
• a digital-analog converter configured to generate a data signal corresponding to the plurality of first color subpixels and the plurality of second color subpixels by using the first data stored in the holding latches, and generating a data signal corresponding to the plurality of third color subpixels by using the second data.