Disclosed is a display driving device that supports accurate correction of the characteristics of pixels by reflecting the characteristics of a source driver in realtime. The display driving device may include: a sensing circuit configured to sense pixel signals for correcting characteristics of pixels of a display panel and sense at least one reference signal for correcting characteristics of a source driver when sensing the pixel signals; and an analog digital converter configured to convert the pixel signals and the at least one reference signal sensed by the sensing circuit into pixel data and reference data, and to transmit the pixel data and the reference data.