New glass could solve transparent display privacy

Remember that Surface concept with transparent display? People raised concern over privacy issue, but that might be solved.

There are new type of sheets that can be applied to glass to make it turn from reflective to transparent.

Here's one:

Here's another:

These could easily be apply to those AMOLED transparent displays that Samsung make and voila, privacy solved! Here's the prototype of Samsung transparent laptop from 3 years ago at CES: