In this paper, the performance of a new RGBW reflective display for mobile devices is described, including high reflectance and wide color gamut.
In addition, a newly developed 7‐inch WUXGA (1200 times 1920) prototype reflective color LCD using a new RGBW technology is described.
In this paper, newly‐developed 5.0‐inch full‐HD (1080 × RGBW × 1920) and 7.0‐inch WQXGA (2560 × RGBW × 1600) prototype LCDs utilizing a new RGBW method are described in detail. The assessment of the image quality of the new RGBW technology is described, such as color image reproducibility, white color tracking in the low power mode and tone curve correction in the outdoor bright mode.
We have developed four primary‐color reflective LCD and have improved yellow and red color saturation. The color gamut area of the developed LCD meets to the standard for printing (SNAP) which is defined for reproduction quality in newsprint production. The developed LCD has also a wide color gamut, wide operating‐temperature range and high‐quality moving images. It is suitable to realize future digital signage for outdoors.
In this paper, the analysis and cause of image quality deterioration of an RGBW display is described. We have found that some distortions are caused by the combination of luminance distribution in a pixel scale and the human visual system. A newly-developed RGBW calculation is proposed to solve this problem.
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