Patent ID: 8648883
Filing Date: 2014-02-11
Classification: G09G

Abstract:
1. A display apparatus, comprising: a plurality of pixels, each of which is turned on during an active period that is divided into a red sub frame, a green sub frame, a blue sub frame, and a white sub frame; a backlight to generate a red light, a green light, a blue light, and a white light during the red sub frame, the green sub frame, the blue sub frame, and the white sub frame, respectively; a controller to receive a first image data, a second image data, a third image data, and a fourth image data corresponding to the red sub frame, the green sub frame, the blue sub frame, and the white sub frame, respectively, to compare a gray scale of the fourth image data with a reference gray scale, in order to determine whether the fourth image data is greater than or less than the reference gray scale, to compensate the first image data, the second image data, and the third image data in accordance with the comparison result, and to output a first compensation data, a second compensation data, a third compensation data, and the fourth image data; a data driver to output a first compensation voltage, a second compensation voltage, and a third compensation voltage corresponding to the first compensation data, the second compensation data, and the third compensation data during the red sub frame, the green sub frame, and blue sub frame, respectively, and to output a data voltage corresponding to the fourth image data during the white sub frame; and a display panel to display an image in response to the first compensation voltage, the second compensation voltage, and the third compensation voltage that are input during the red sub frame, the green sub frame, and the blue sub frame, respectively, and in response to the data voltage input during the white sub frame, wherein the reference grayscale is independent of the first, second, third, and fourth image data.