OLED light-emission efficiency doubled using near-planar light outcoupling structure combined with a new pixel-specific design

https://www.eurekalert.org/news-releases/1112270

"problems: >80% OLED generated light lost as heat getting trapped/ reflected/ absorbed within ultrathin organic layers, solutions bulky and ruin thin/ flat structure... optimizes light extraction for the actual, finite size of individual display pixels, thin as existing microlens but with efficiency of larger hemispherical lenses... reduced optical interference between neighboring pixels, brighter displays using same power, reduced heat = longer lifespan... also compatible: flexible displays, perovskites, quantum dots"