Matt Misenieks from Super Ventures , (AWE crowd,Inbar, Emrich et al, Sorry the font is unreadable but check the optics portion)

A high-res OLED microdisplay from e-magin, suitable for a HMD (or a Watch). The image is projected into the waveguide which spreads it over the plastic lens in the glasses so you can see it in front of your face.

I don’t have any specific knowledge of Apple’s roadmaps. However I do have a great deal of knowledge of the underlying enabling technologies & design problems, a large number of friends who have seen small unreleased pieces of Apple’s current AR work, and enough time in the tech industry to see how history rhymes wrt platform transitions. From there I’m just joining dots based on my experience designing/building similar things over the last 9 years.

The optics need to work outdoors on sunny days, and be sharp enough to read text. FoV is less important to AR than VR as the utility use-cases aren’t as immersive as games which depend on peripheral vision. FoV mostly matters to avoid the distration from clipping the content. Today the state of the art that can be manufactured in volume is an OLED microdisplay powering an injection molded waveguide.

https://medium.com/@mattmiesnieks/why-apples-glasses-won-t-include-arkit-46a1d40381fe