Kind of obvious question here... given that the 'frame' part of the glasses (the front) contribute nothing to the 'AR' experience - why not just ditch them entirely? It would make the glasses a lot smaller.
Xreal has launched the One Pro AR glasses for gamers and spacial computing enthusiasts. The glasses present a virtual, three-axis stabilized display in front of users using a custom X1 chip, which also supports an ultra-wide 32:9 display mode.