These displays are both transparent, as well as mirror-type. It doesn’t look like Samsung wants to market these for the average user, but it can be used as ad billboards as well as a possible digital signage. For example, the one with a mirror is good for a “virtual fitting room”, where you can see what outfits and/or jewelry looks like without trying it on.
As for the transparent display, imagine passing by a store window and information appears for some products inside the store. If you like what you see, you can use voice and gesture capabilities to get more ads.
Okay, this isn’t some tech that you will see the next time you walk into a department store, but in stores of the future, this is a remote possibility.