https://arstechnica.com/gadgets/2022/01/3d-printing-could-make-oled-laptops-phones-cheaper/

Laptops and phones with OLED displays boast rich colors at high contrasts—but they come at a premium price. Researchers from the University of Minnesota in the Twin Cities (UMN) say they've found a potential solution to that price barrier by using a 3D printer that could eventually lead to people making their own OLED screens at home.

In a study published in Science Advances on Friday, the researchers used a custom-built printer that fits on a table and "costs about the same as a Tesla Model S," Michael McAlpine, a University of Minnesota professor in the Department of Mechanical Engineering and senior author of the study, said in a statement accompanying UMN's announcement.