Sensing circuit of source driver and display device using the same

A sensing circuit of a source driver, comprising:

• a bit selection unit configured to receive a bit selection signal, and, by perform an operation of selecting some pixel data corresponding to the bit selection signal from pixel data obtained converted from sensing signals obtained by sensing pixels of a display panel, generate sensing data having a smaller number of bits than the pixel data;
• and
• a transmission unit configured to transmit the sensing data to a timing controller.

A display device comprising:

• a source driver including a sensing circuit for performing a pre-processing operation on pixel data obtained by converting sensing signals of pixels of a display panel, and configured to generate sensing data having a smaller number of bits than the pixel data by the pre-processing operation of the sensing circuit and provide the sensing data;
• and
• a timing controller including a correction circuit for receiving the sensing data and performing a post-processing operation on the sensing data, and configured to generate correction data for correction for characteristics of a pixel by the post-processing operation of the correction circuit.