LG Display's New FLiPP Manufacturing Process Promises Brighter and Cheaper OLED Panels
These photolithography based manufacturing processes have the potential to displace QD-OLED and WOLED because as a patterned display, they can directly deposit red/green/blue emitters for each subpixel and eliminate the QD and colour filter layers as seen on QD-OLED and WOLED respectively, eliminating one source of inefficiency. A direct view display also has the benefit of being able to use much more efficient green and red emitters only for their respective subpixels, eliminating the inefficient blue emitter for 2/3rd of the subpixels. Presumably the next big innovation will be poled blue emitters that don't die in 100s of hours and/or hyperfluorescence emitters for greater colour purity (and longer lifespan for blue emitters).
A short infomercial about it from lg display: https://www.youtube.com/watch?v=L_7Fvpc9nzA