Display Daily devotes more space to the Discussion from yesterday Sweta Dash, Author

Sony has been using a microLens to increases peak brightness of its OLED micro-display. Kopin has developed a trio stack architecture to increase brightness. According to the presentation of Andrew Sculley, CEO of eMagin, there are four major challenges for the AR/VR market: Displays, Optics, Content and Price.

• Display: high resolution, high brightness, high contrast, low power, no screen door effect, high fill factor
• Optics: large FOV (Field of View), no distortion, high efficiency, light weight, small form factor
• Content: games, movies, live events, etc and graphics processing speed
• Price: has to be right

The human eye’s resolution capability is 60 Pixels/degree (PPD). eMagin's OLED microdisplay demo has 40PPD compared to the Oculus Quest 2's PPD of 20. For microOLED, its higher PPD, high luminance (to eliminate motion artifacts), high resolution (to eliminates screen door effects), high fill factor, higher efficiency and longer life time capabilities result in increased demand for the VR applicatrion.

See-through AR also requires very high brightness, very high resolutions and very high contrast.  These requirements make OLED microdisplays more applicable for both AR and VR. eMagin has achieved 10,000 nits brightness in a 1920 X 1200 4K OLED microdisplay, made by direct patterning (eliminating the color filter) of red, green, and blue (RGB) sub-pixel emitters on the backplane. The red and green emitters were made from phosphorescent materials and the blue from fluorescent material.