You’ve got the right idea, that’s a similar-but-different screen manufactured by the same company; the on I’m linking to in OP has a faster refresh rate with the tradeoff of less color saturation.
Edit: importantly, the screen you’ve linked(spectra) has been announced to have a new version with a backing plate of the same material as the one I linked in OP(Kaledo); which would allow a higher voltage and therefore a similar refresh rate to Kaledo with the higher color saturation of the Spectra panel. Would you be available to buy a panel and write a driver this upcoming year?