From the perpetual future

http://hplusmagazine.com/articles/toys-tools/micro-machines-and-opto-electronics-contact-lense

O.K. So how does one make a virtual image at a distance from the
viewer with this? Right now, the LEDs sit on the surface of the
contact and would just appear as a bright blob. Microlenses within the
contact? Even today's smallest pixels would be huge. I'm trying to
think where I've seen this before...

Oh here we go, http://www.hitl.washington.edu/projects/common/papers.php?idx=1.
From the Human Interface Technology Lab at UW.

I wonder how far out the multispectral deformable dynamic
micro-lensing technology we need for this is out - 50 years perhaps?