Display control method and display control device

A display control device comprising:

• a data transmitter configured to transmit a command for sensing to a driver integrated circuit (DIC);
• a data receiver configured to receive feedback data including a transfer start indicator from the DIC;
• and
• an internal clock signal generator configured to generate an internal clock signal and shift a phase of the internal clock signal,
• wherein the transfer start indicator of the feedback data is checked based on the phase-shifted internal clock signal,
• wherein the reception of the feedback data and the phase shift of the internal clock signal are repeated a predetermined number of times, and
• wherein a center value is determined from among values corresponding to numbers of times that the transfer start indicator is received while the reception and the phase shift are repeated the predetermined number of times.

A display system comprising:

• a timing controller;
• and
• a driver integrated circuit (DIC),
• wherein the timing controller is configured to:
• transmit a command for sensing to the DIC, receive feedback data including a transfer start indicator from the DIC, and generate an internal clock signal and shift a phase of the internal clock signal;
• wherein the transfer start indicator of the feedback data is checked based on the phase-shifted internal clock signal, reception of the feedback data and shift of the phase of the internal clock signal are repeated with a predetermined number of times, and
• wherein a center value is determined from among values corresponding to numbers of times that the transfer start indicator is received while the repeat of the predetermined number of times.