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http://dx.doi.org/10.3807/JOSK.2014.18.6.777

An RGB to RGBY Color Conversion Algorithm for Liquid Crystal Display Using RGW Pixel with Two-Field Sequential Driving Method  

Hong, Sung-Jin (Department of Information Display Engineering, Hanyang University)
Kwon, Oh-Kyong (Department of Electronic Engineering, Hanyang University)
Publication Information
Journal of the Optical Society of Korea / v.18, no.6, 2014 , pp. 777-782 More about this Journal
Abstract
This paper proposes an RGB to RGBY color conversion algorithm for liquid crystal display (LCD) using RGW pixel structure with two-field (yellow and blue) sequential driving method. The proposed algorithm preserves the hue and saturation of the original color by maintaining the RGB ratio, and it increases the luminance. The performance of the proposed RGBY conversion algorithm is verified using the MATLAB simulation with 24 images of Kodak lossless true color image suite. The simulation results of average color difference CIEDE2000 (${\delta}E^*_{00}$) and scaling factor are 0.99 and 1.89, respectively. These results indicate that the average brightness is increased 1.89 times compared to LCD using conventional RGB pixel structure, without increasing the power consumption and degrading the image quality.
Keywords
Color conversion algorithm; RGBY; Field sequential driving; White sub-pixel; Liquid Crystal display (LCD);
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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