| 摘要 |
<p>A display device according to an embodiment of the present invention comprises a data mapping unit, a gain adjustment unit, and a display unit. The data mapping unit extracts a minimum value from among three-color input color data corresponding to red, green, and blue, determines white output color data by multiplying the extracted minimum value by a gain ratio, and determines output color data of red, green, and blue by subtracting the white output color data from the three-color input color data. The gain adjustment unit determines a preliminary gain ratio so as to minimize a standard deviation of the white output color data and the output color data of red, green, and blue, and determines the gain ratio by changing the preliminary gain ratio based on a cumulative sum of color data used for each sub-pixel in a previously displayed image. The display unit includes unit pixels made up of red, green, blue, and white sub-pixels, and displays an image corresponding to the white output color data and the output color data of red, green, and blue.</p> |
