Device for adjusting transmission signal level based on channel loading

A display device comprising:

• a display panel including a plurality of gate lines, a plurality of data lines, and a plurality of pixels, each of the plurality of pixels being located at a corresponding intersection of a gate line and a data line;
• at least one gate driver configured to drive the plurality of gate lines;
• a plurality of column drivers configured to drive the plurality of data lines;
• and
• a timing controller configured to independently control a level of a signal to be transmitted to each of the plurality of column drivers based on a channel loading between the timing controller and each of the plurality of column drivers, the channel loading being based on a distance between the timing controller and each of the plurality of column drivers;
• wherein
• the timing controller is configured to control levels of a data current signal and a reference current signal in response to a control signal,
• the timing controller is configured to transmit the data current signal and the reference current signal,
• a first column driver among the plurality of column drivers is configured to receive a data current signal and a reference current signal for a corresponding second column driver among the plurality of column drivers from the timing controller,
• the first column driver is configured to transmit the received data current signal and the received reference current signal to the corresponding second column driver, and
• the first column driver is configured to generate a column reference current signal having a level that is inversely proportional to a level of the reference current signal received from the timing controller, the first column driver being further configured to transmit the column reference current signal to the second column driver.

A controller to control a plurality of display driver integrated circuit (IC) devices, the controller comprising:

• a processor configured to generate a control signal to independently control a level of a signal to be transmitted to each of the plurality of display driver IC devices;
• and
• a plurality of transmitting units, each of the plurality of transmitting units being configured to control the level of the signal, and to transmit the controlled signal to a corresponding display driver IC device in response to the control signal;
• wherein
• for each of the plurality of display driver IC devices, the level of the signal to be transmitted to the display driver IC device is independently controlled according to a channel loading between the controller and the display driver IC device, the channel loading being based on a distance between the controller and the display driver IC device.