"Optics Express Vol. 30, Issue 2, pp. 1036-1055 (2022) •https://doi.org/10.1364/OE.447375 

General solution to the calculation of peak luminance of primaries in multi-primary display systems

Binghui Yao, Liquan Zhu, Yuhua Yang, Guan Wang, Chun Gu, and Lixin Xu"

According to this modern displays (tm) can use more than 3 primary colors ...

We must be happy that all this encapsulated by  some black box monitor firmware ;)