为了探究激光显示技术中白平衡点的选择, 基于颜色混合理论, 采用立体色域算法研究了三基色激光显示中白平衡点改变对立体色域的影响。以D65立体色域为标准, 结合色域覆盖率, 得到了激光显示系统合适的白平衡点选择范围。结果表明, 当白平衡点位于黑体轨迹上时, 不同的波长组合下, 白点色温的最佳选择都在6500K左右；进一步分析白点偏离黑体轨迹的情况, 可以得到不同波长组合下的激光显示系统白平衡点合适的选择范围。该研究可以为显示系统白平衡点的选择提供理论基础和依据。

In order to explore the choice of white balance point in laser display, the influence of white balance point change on the color gamut in three primaries laser display was studied based on the color mixing theory and stereoscopic color gamut algorithm. Taking D65 color gamut as the standard, the appropriate white balance point selection range of laser display system was obtained by combining with color gamut coverage. The results show that when the white balance point is on the blackbody locus, the best choice of color temperature is around 6500K under different wavelength combinations. Further, considering the situation that the white point deviates from the blackbody locus, the appropriate selection range of white balance point of laser display system under different wavelength combinations can be obtained. These results can provide theoretical basis and reference for the selection of white balance point of display system.