LED on film is getting better and tighter, and starting to see some marketplace adoption.
The Chinese manufacturer Nexnovo has been a major supplier of mesh-based transparent LED, but I have discovered it also does film – with a focus on horizontal ribbon-like displays that can overhang things like entryways.
The attraction of LED on film is that it is genuinely transparent, whereas the mesh-based products are see-through … ish, but tend to look awful from the rear because of the back end of the thin lighting strips.
These are 10mm pixel pitch and have 92% transparency. They weigh a little more than 20 pounds and can be daisy-chained for wide rows of units.
One interesting thing is the Shenzhen company has also written a CMS for the displays, controllable via a smartphone app.
I like these things for their simple functionality. You wouldn’t likely use it for ambitious creative, but as a sign over a door that says “Buy One, Get One Free!!!” … it will get noticed. Same for things like pointing the was in convention centers and rail hubs.
LG, as well as some smaller start-ups, also have LED on film, and I wrote the other day about a Korean firm with LED embedded in glass window panels.