The Japanese do some incredible stuff. I remember in the 60’s, there use to be an international contest. Someone would design something, send it to the next country and they would try and improve it. One year, a coil spring was designed and sent around the world. It finally got to the point that the spring became so small that you could hardly see it. Japan took that spring and drilled a hole through the wire. Nobody could beat that.
Back in the '60s some Americans created "the thinnest wire in the world" and sent it to the Swiss as a challenge to do better. The wire came back with no note, and nobody could figure it out - until, under a microscope, they saw the wire had a hole drilled through the core.
OLED were discovered and “invented” in America.