I don't see LCD layer here. Passive color filters, B/W capsules (which reflects or doesn't reflect incoming light, depends on orientation), TFT (thin layer transistors, not LCD — liquid crystal display!) as control to orient capsules.
Yes, it is not 4 color capsules as in Spectra, but where is LCD?
LCD what is caught my attention (and surprise) in your commentary.
Vs Spectra (the expensive screen): https://www.eink.com/upload/2023_11_14/3_20231114082849vy2as...