Doing a little math, that is only about 13 pixels per degree or 4.5 arcminute/pixel. Typical VR headsets are about 30 pixels/degree (2-arcminutes per pixel. For optical text reading like with a computer monitor, I consider 40 pixels/degree (1.5arcminutes/pixel) the bare minimum.
There is also some scintillation from the beaded screen. Not terrible, but enough that it would not be good for text. So even if the resolution was higher (which is possible with this technology), I'm still not sure it would be good as a computer monitor.
The case where it works best seems to be in "tabletop" applications, and it behaves best when the viewer is about 45 degrees to the surface. Business and military applications for things such as "sand tables" also fit this model.
> It has a 110-degree field of view
With that big of a field of view, and that low of a resolution, I don't think you'd be happy with reading text. But I'm just guessing.
But, the comfort is around a dozen lines (or less) per screen...
The display could sure gain from extra lines (a resolution of 1280x960, instead of 1280x720, could be optimal to my estimation) without causing visual issues, but potential visual issues with the left and right extremes are already evident.
I mean, I don't typically read with the corner of my eye. The eye saccades are relatively central.