Epson's New Laser Projector Takes a Clever Approach to Achieve Full 4K

https://gizmodo.com/epson-pro-cinema-4k-projector-price-specs-1848451440

"utilizes three LCDs inside—one for red, green, and blue light—but each one is limited to just HD resolutions, or 1920 x 1080 pixels...  runs at a faster refresh rate and features a redesigned “precision shift glass plate” that subtly shifts the position of projected pixels on screen for every frame, increasing the resolution.  can deliver 2,700 lumens with a contrast ratio of over 2,500,000:1... image up to 300 inches in size, but that requires enough room to position the projector more than 60 feet away from the screen"

Related: Light guide plate based on perovskite nanocomposites

https://phys.org/news/2023-11-plate-based-perovskite-nanocomposites.html