DISPLAY DEVICE AND METHOD FOR DRIVING DISPLAY DEVICE

摘要

According to an aspect, a display device includes an image display panel and a signal processing unit. The signal processing unit derives a generation signal for a fourth sub-pixel in each of pixels based on an input signal for a first sub-pixel, an input signal for a second sub-pixel, an input signal for a third sub-pixel, and an extension coefficient. The signal processing unit derives a correction value based on a hue of an input color corresponding to a color to be displayed based on the input signal for the first sub-pixel, the input signal for the second sub-pixel, and the input signal for the third sub-pixel. The signal processing unit derives the output signal for the fourth sub-pixel in each of the pixels based on the generation signal for the fourth sub-pixel and the correction value and outputs the output signal to the fourth sub-pixel.

主权项

1. A display device comprising:
an image display panel including a plurality of pixels each having a first sub-pixel that displays a first color, a second sub-pixel that displays a second color, a third sub-pixel that displays a third color, and a fourth sub-pixel that displays a fourth color; and a signal processing unit that converts an input value of an input signal into an extended value in a color space extended by the first color, the second color, the third color, and the fourth color to generate an output signal and outputs the generated output signal to the image display panel, wherein the signal processing unit determines an extension coefficient for the image display panel, the signal processing unit derives a generation signal for the fourth sub-pixel in each of the pixels based on an input signal for the first sub-pixel, an input signal for the second sub-pixel, an input signal for the third sub-pixel, and the extension coefficient, the signal processing unit derives an output signal for the first sub-pixel in each of the pixels based on at least the input signal for the first sub-pixel, the extension coefficient, and the generation signal for the fourth sub-pixel and outputs the output signal to the first sub-pixel, the signal processing unit derives an output signal for the second sub-pixel in each of the pixels based on at least the input signal for the second sub-pixel, the extension coefficient, and the generation signal for the fourth sub-pixel and outputs the output signal to the second sub-pixel, the signal processing unit derives an output signal for the third sub-pixel in each of the pixels based on at least the input signal for the third sub-pixel, the extension coefficient, and the generation signal for the fourth sub-pixel and outputs the output signal to the third sub-pixel, the signal processing unit derives a correction value for deriving an output signal for the fourth sub-pixel based on a hue of an input color corresponding to a color to be displayed based on the input signal for the first sub-pixel, the input signal for the second sub-pixel, and the input signal for the third sub-pixel, and the signal processing unit derives the output signal for the fourth sub-pixel in each of the pixels based on the generation signal for the fourth sub-pixel and the correction value and outputs the output signal to the fourth sub-pixel.