17‐4: <i>Invited Paper:</i> 0.9 ‐in. 6,020ppi 4Kx4K Silicon‐Based Micro‐OLED Display Technology

VR technology is an immersive, three‐dimensional display technology that can bring fantastic display effects to the wearer. Micro‐OLED perfectly fits VR display in terms of miniaturization, high pixel density, and high brightness, and has gradually become the first choice for high‐end VR products. However, due to excessive cost constraints, micro‐OLED has not yet entered the more popular products. Therefore, improving product pixel density and reducing single chip cost have become the core research topics of micro‐OLED. A micro OLED display screen with up to 6020PPI, 4K*4K resolution and a size of 0.9 inch has been designed, maximizing cutting efficiency and reducing single chip product cost. And in order to enable the white OLED device to possess a high luminous efficiency, we have fully optimized the OLED microcavity, the brightness reaches 5000nit. In the end, a compact free‐form surface AR glasses optical system was designed using the equal optical path theory.