Patent ID: 8570253

Claim:
A display device comprising: a display unit comprising a plurality of data lines for transmitting data currents, a plurality of scan lines for transmitting selection signals, and a plurality of pixel areas defined by the data lines and the scan lines; a data driver for dividing a plurality of grayscale data into at least two grayscale sections, converting at least one of the plurality of grayscale data into at least one of the data currents, and applying the at least one of the data currents to at least one of the data lines, each of the plurality of grayscale data comprising a high-order bit data and a low-order bit data; and a scan driver for sequentially applying the selection signals to the plurality of scan lines, wherein the data driver is configured to output a first current corresponding to a first grayscale section of the at least two grayscale sections by utilizing the high-order bit data, the first grayscale section being indicated by the at least one of the plurality of grayscale data, wherein the data driver is configured to output a second current corresponding to the first grayscale section by utilizing the high-order bit data to select a reference signal, and utilizing the low-order bit data and the selected reference signal to control current variations for the second current, wherein the data driver is configured to divide the first grayscale section into a first sub-grayscale section and a second sub-grayscale section by utilizing the low-order bit data, a first group of the grayscale data corresponding to the first sub-grayscale section and a second group of the grayscale data corresponding to the second sub-grayscale section, and to control current variations for the second current with respect to the first sub-grayscale section and the second sub-grayscale section, respectively, to be different in accordance with the same selected reference signal, and wherein the data driver is configured to output the at least one of the data currents as a sum of the first current and the second current.