Patent ID: 8872842
Filing Date: 2014-10-28
Classification: G09G

Abstract:
1. A display device comprising: a display unit that has a plurality of pixels each including three color sub-pixels, that is, a red (R) sub-pixel, a green (G) sub-pixel, and a blue (B) sub-pixel, and a color (Z) sub-pixel whose luminance is higher than luminances of the above three sub-pixels; a conversion processing unit that generates output image signals corresponding to the four colors R, G, B, and Z by performing predetermined processing on the basis of input image signals corresponding to the three colors R, G, and B; and a drive unit that is equipped with the conversion processing unit and performs display driving on the R sub-pixel, G sub-pixel, B sub-pixel, and Z sub-pixel using the output signals, wherein the conversion processing unit generates the output image signals so that display operation is respectively performed in the R, G, B, and Z sub-pixels if the luminance level of the Z sub-pixel is higher than a predetermined threshold; and generates the output image signals so that the display operation is performed respectively in the R, G, and B sub-pixels, but the display operation is not performed in the Z sub-pixels if the luminance level of the Z sub-pixel is equal to or lower than the predetermined threshold.