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Generating vivid colors on red-green-blue-white electronic-paper display

机译:在红,绿,蓝,白电子纸显示屏上生成鲜艳的色彩

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摘要

Color characteristics of an RGBW (red, green, blue, white) electrophoretic display (EPD) prototype developed by Samsung Electronics are analyzed. EPD shows strong crosstalk between subpixels because of both the fringe field between subpixels and the scattering phenomena at the display surface. An RGB-to-RGBW color-decomposition algorithm optimized to EPD characteristics is developed that compensates for color deterioration due to the fringe field and scattering phenomena. For the four-color-decomposition algorithm, white is added to the primary colors to enhance the reflectance of the vivid colors while minimizing chroma loss. The psychophysical experimental result shows that images rendered with the algorithms developed in this study are preferred more than 90percent of the time over those rendered with algorithms from previous studies. This research proves that, in spite of the limited physical property of EPD, the color quality can be improved dramatically through the use of well-designed color-rendering algorithms.
机译:分析了三星电子开发的RGBW(红色,绿色,蓝色,白色)电泳显示器(EPD)原型的色彩特性。由于子像素之间的边缘场和显示表面的散射现象,EPD显示出子像素之间的强串扰。开发了针对EPD特性优化的RGB到RGBW颜色分解算法,该算法可以补偿由于边缘场和散射现象而导致的颜色劣化。对于四色分解算法,将白色添加到原色中,以增强鲜艳颜色的反射率,同时最大程度地减少色度损失。心理物理实验结果表明,与先前研究的算​​法相比,使用本研究开发的算法渲染的图像在90%的时间内是首选的。这项研究证明,尽管EPD的物理性能有限,但通过使用设计良好的显色算法可以显着改善颜色质量。

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