Combined use of holographic metasurfaces and OLEDs light allows complete image projection from one OLED pixel instead of thousands

https://phys.org/news/2025-08-optoelectronics-holograms-smartphone-closer-everyday.html

"creates pre-designed image on other side, exploiting light interference whereby light waves create complicated patterns when interact with each other... each meta-atom shaped to control/ slightly modify beam of light passing through, behaving as one holographic metasurface pixel... simpler, compact, cheaper, easier to apply than using lasers... data storage, anti-counterfeiting, smart phones, VR/ AR, communication, gaming/ entertainment, high numerical aperture lenses for optical microscopy/ sensing"