The smallest large display would be projected straight onto your retina
I'm not sure if there is a good short primer on Retinal Displays or not, but I don't think this is it.<p>As the article itself outlines, it's been decades of research and we haven't really been able to make any practical progress yet. There are a lot of reasons for this that are as much social as they are technical.<p>At my previous company a few years ago we took a crack at a concept [1], but never got it off the ground because prototype costs were in the millions and there are only a few places that we could source the kind of hardware you need to build these things.<p>Last I checked in 2017, Oculus/Facebook was making the most progress on this but even then were having trouble miniaturizing things. I'm really curious where they are with it.<p>[1] <a href="https://pdfaiw.uspto.gov/.aiw?docid=20180131926&SectionNum=1&IDKey=363814FA3947&HomeUrl=http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1%2526Sect2=HITOFF%2526d=PG01%2526p=1%2526u=%25252Fnetahtml%25252FPTO%25252Fsrchnum.html%2526r=1%2526f=G%2526l=50%2526s1=%25252220180131926%252522.PGNR.%2526OS=DN/20180131926%2526RS=DN/20180131926" rel="nofollow">https://pdfaiw.uspto.gov/.aiw?docid=20180131926&SectionNum=1...</a>