A burning protection circuit of a display device comprising a plurality of pixel blocks, each of the pixel blocks comprising a plurality of pixels, the pixel blocks being respectively supplied with power through a plurality of power supply lines, the burning protection circuit comprising: a plurality of current measuring units (200-1, 200-2, 200-N), each configured to generate individual measured current values by measuring current supplied to a corresponding one of the pixel blocks through a corresponding one of the power supply lines during a frame period; and a control unit configured to: generate block data for each pixel block of the pixel blocks based on the pixel data for the pixels of the pixel block during the frame period by averaging or summing the pixel data for the pixels included in the corresponding pixel block during the frame period; generate an average measured current value for each pixel block by respectively averaging the individual measured current values for the corresponding pixel block during the frame period; and to determine whether the overcurrent occurs based on a plurality of ratios, corresponding to the plurality of pixel blocks, of an average measured current value to a corresponding one of the block data, wherein it is determined that the overcurrent does not occur when the plurality of ratios are substantially the same as each other and less than a set or predetermined threshold value and it is determined that the overcurrent occurs when at least one of the plurality of ratios is different from the remaining ones of the ratios and exceeds the set or predetermined threshold value. a plurality of current measuring units (200-1, 200-2, 200-N), each configured to generate individual measured current values by measuring current supplied to a corresponding one of the pixel blocks through a corresponding one of the power supply lines during a frame period; and a control unit configured to: generate block data for each pixel block of the pixel blocks based on the pixel data for the pixels of the pixel block during the frame period by averaging or summing the pixel data for the pixels included in the corresponding pixel block during the frame period; generate an average measured current value for each pixel block by respectively averaging the individual measured current values for the corresponding pixel block during the frame period; and to determine whether the overcurrent occurs based on a plurality of ratios, corresponding to the plurality of pixel blocks, of an average measured current value to a corresponding one of the block data, wherein it is determined that the overcurrent does not occur when the plurality of ratios are substantially the same as each other and less than a set or predetermined threshold value and it is determined that the overcurrent occurs when at least one of the plurality of ratios is different from the remaining ones of the ratios and exceeds the set or predetermined threshold value. generate block data for each pixel block of the pixel blocks based on the pixel data for the pixels of the pixel block during the frame period by averaging or summing the pixel data for the pixels included in the corresponding pixel block during the frame period; generate an average measured current value for each pixel block by respectively averaging the individual measured current values for the corresponding pixel block during the frame period; and to determine whether the overcurrent occurs based on a plurality of ratios, corresponding to the plurality of pixel blocks, of an average measured current value to a corresponding one of the block data, wherein it is determined that the overcurrent does not occur when the plurality of ratios are substantially the same as each other and less than a set or predetermined threshold value and it is determined that the overcurrent occurs when at least one of the plurality of ratios is different from the remaining ones of the ratios and exceeds the set or predetermined threshold value.