Patent ID: 8207917

Claim:
An organic light emitting display device comprising: a display panel having scan lines comprising odd-numbered scan lines and even-numbered scan lines, data lines and a plurality of pixels at crossing regions of the scan lines and the data lines; a data driver for applying correction data signals to the data lines; a first scan driver for sequentially applying a scan signal to the odd-numbered scan lines; a second scan driver for sequentially applying a scan signal to the even-numbered scan lines; a buffer memory for storing data inputted to the pixels coupled to the scan lines; and a correction operation unit for determining a luminance degree for the pixels coupled to each of the scan lines based on the data and generating a data correction value corresponding to the luminance degree; wherein the correction operation unit comprises: a first calculator for determining the luminance degree for the pixels coupled to each of the scan lines and for calculating a luminance difference between corresponding pixels of the pixels respectively coupled to a corresponding one of the odd-numbered scan lines and a corresponding one of the even-numbered scan lines; a second calculator for receiving a result value from the first calculator and address signals of corresponding pixels of the pixels coupled to a scan line of the scan lines, and for adjusting the data correction value of the data inputted to the corresponding pixels in accordance with the positions of the corresponding pixels coupled to the scan line; and a controller for generating a revision value in accordance with luminance of the data inputted to each of the pixels corresponding to the luminance degree determined by the first calculator for each of the scan lines, wherein when the controller generates the revision value for each of the pixels, the revision value is multiplied by a correction value outputted from the second calculator, thereby generating a final correction value for each of the pixels coupled to the scan line, and said correction operating unit provides the final correction value to be added to or subtracted from the current data, thereby outputting a correction data to the data driver.