Song Hongya, Li Haifeng, Liu Xu
Opt Express. 2018 Sep 3;26(18):23436-23448. doi: 10.1364/OE.26.023436.
In using a laser light source, it becomes possible to realize an ultra-wide display gamut that approaches the human color vision limit. This paper introduces a method for extremely large gamut optimization for different primary numbers, and it offers a primary set that produces a nearly ultimate gamut. Considering display lightness, we calculated wavelength selection and lightness design of a display with 3-9 primaries in the CIELAB uniform color space (UCS) by optimizing the coverage of the optimal color gamut. Theoretically the maximum gamut area of a laser display with 3-12 primaries in the CIE xy and CIE u'v' chromaticity diagrams is also calculated for comparison. We recommend 6 primaries as a reasonable choice, since the coverage reaches 97.6% of the optimal color. Taking into account the luminance efficacy of radiation (LER) and feasible laser wavelengths in practice, we get a practical design of wavelengths and power for a laser projection display with 6 primaries, which covers 96.6% of the optimal color gamut.
在使用激光光源时，有可能实现接近人类色彩视觉极限的超宽显示色域。本文介绍了一种针对不同原色数量的超大色域优化方法，并提供了一种能产生近乎极限色域的原色集。考虑到显示亮度，我们通过优化最佳色域的覆盖范围，在CIELAB均匀颜色空间（UCS）中计算了具有3至9种原色的显示器的波长选择和亮度设计。理论上，还计算了在CIE xy和CIE u'v'色度图中具有3至12种原色的激光显示器的最大色域面积以作比较。我们推荐6种原色作为合理选择，因为其覆盖范围达到了最佳颜色的97.6%。考虑到实际中的辐射发光效率（LER）和可行的激光波长，我们得出了具有6种原色的激光投影显示器的波长和功率的实际设计，其覆盖了最佳色域的96.6%。
