Light source apparatus, display apparatus including the same and method of compensating luminance difference of the same

A display apparatus comprising:

• a display panel which displays an image;
• a gate driver which applies a gate signal to the display panel;
• a data driver which applies a data voltage to the display panel;
• a light source apparatus which provides light to the display panel;
• and
• a light source driver which drives the light source apparatus,
• wherein the light source apparatus comprises:
• a plurality of light source gate lines extending in a first direction;
• a plurality of light source data lines extending in a second direction crossing the first direction;
• a plurality of light source emission lines;
• a plurality of feedback lines;
• and
• a plurality of light source blocks,
• wherein at least one of the plurality of light source blocks is connected to a light source gate line of the plurality of light source gate lines, a light source data line of the plurality of light source data lines, a light source emission line of the plurality of light source emission lines and a feedback line of the plurality of feedback lines.

A method of compensating luminance difference of a light source apparatus which provides light to a display panel, the method comprising:

• applying a plurality of light source gate signals to a plurality of light source gate lines;
• applying a plurality of light source data signals to a plurality of light source data lines;
• applying a light source emission signal to a plurality of light source emission lines;
• sensing currents flowing through a plurality of light source blocks through a plurality of feedback lines;
• and
• generating a compensated light source data signal using the sensed currents through the plurality of feedback lines.