Compensation method of display device

A compensation method of a display device, comprising:

• sensing a first current flowing in a first power line of the display device when a first pattern is displayed on the display device;
• calculating a current prediction value corresponding to a second pattern to be displayed on the display device based on the first current, wherein the second pattern is different from the first pattern;
• sensing a second current flowing in the first power line when the second pattern is displayed on the display device;
• adjusting the second current until the second current reaches the current prediction value;
• and
• storing compensation data corresponding to an adjusted second current in a lookup table when the second current reaches the current prediction value.

A compensation method of a display device, comprising:

• storing first reference data voltages for pixels of a reference display device when a first pattern is displayed on the reference display device at a first luminance;
• storing second reference data voltages for the pixels of the reference display device when a second pattern, which is different from the first pattern, is displayed on the reference display device at a second luminance;
• storing first data voltages for pixels of the display device when the first pattern is displayed on the display device at the first luminance;
• calculating second voltages to be provided to the pixels of the display device based on a ratio of the first data voltages with respect to the first reference data voltages when the second pattern is displayed on the display device at the second luminance;
• and
• storing compensation data corresponding to the second data voltages in a lookup table.