Display device including compensation for current difference between circuit boards, and method of driving the same

A method of driving a display device including a display panel configured to display images;

• a first circuit board including a timing controller;
• a plurality of second circuit boards arranged along one side of the display panel;
• at least one first cable electrically connecting the first and second circuit boards;
• a plurality of third circuit boards arranged along the one side of the display panel and connecting the display panel to the plurality of second circuit boards;
• voltage lines extending on the third circuit boards, the second circuit boards and the at least one first cable and to transmit a voltage signal from the timing controller to the display panel for driving the display panel;
• a deviation compensation circuit;
• and a variable circuit, the method comprising:
• sensing, via the deviation compensation circuit, sense a voltage transmitted through the voltage line on a first one of the plurality of second circuit boards and a voltage transmitted through the voltage line on a second one of the plurality of second circuit boards adjacent to the first one of the plurality of second circuit boards;
• and
• compensating, via the variable circuit, for a current difference between the first one and the second one of the plurality of second circuit boards,
• wherein the deviation compensation circuit is disposed on one of the first one and the second one of the plurality of second circuit boards.