World’s smallest LEDs from a new semiconductor Micro- and nano-perovskite LEDs promise a new generation of display technology 19 March 2025, Zhejiang University ‘Downscaling’, the process of making elementary devices smaller in size, is at the heart of many technological breakthroughs in computing, information display, and human-machine interactions. For example, the downscaling of transistors has accelerated the speed of computers
I think 8K can be made with 2k ppi.
That would be 4 inches or about 10cm wide screen.