Virtual Retinal Displays (VRD) have been around for a while (1). More recently entering the consumer market. I didn't see the article mention the Avegant Glyph (2)
Avegant just has you looking at a DLP "screen". There's nothing special or magic about it. Each mirror/pixel you look at is either reflecting laser light or not reflecting laser light.
For (2), it looks cool but there’s no way to order it and the website doesn’t look updated since it won that award at CES 2017. I’ve seen so many of these headsets over the years that exhibit at CES and then are never heard from again. I’ll believe it when I see it in real life.