There is no such thing as a `foveated display`<p>There is foveated rendering: a rendering optimization technique where you render at higher resolutions where the eye is looking at due to higher visual acuity in a small ~5-degree circle thanks to a large concentration of cones in the fovea of the eye.<p>This has nothing to do with the actual pixel density of HMDs. Physical pixel density remains an issue, and foveated rendering does not solve that.<p>edit: Perhaps I misunderstood, are you talking about retinal laser projected displays and concentrating the beam on the fovea?