Worlds thinnest display using a soap bubble

Non-blogspam source: http://www.theverge.com/2012/7/2/3131606/thin-soap-bubble-di...

actually,

http://www.bbc.co.uk/news/technology-18671061

and REAL source:

um, how is colour possible?

The images are being projected by the light source, they are not being produced by the film itself via the sound generator.

The frequencies alter the opacity and reflective properties at various points on the surface, so you might be able to have an almost opaque block of color next to an almost transparent section.

It's not a 700nm "screen" like your monitor. It's a 700nm "screen" like you might have for a projector (but with some other cool properties).

I wonder if they can get the resolution high enough to do proper interference patterns. It would be a cool way to do digital holography.