What is this framing technique called?
First, does anyone know what framing technique is used to show the finalists of the Smithsonian Photo Contest, below? This question is more targeted to people who have actually been to that exhibit. There is a certain answer to this: they specify in the exhibit what they use. I neglected to capture the details, but I do remember it to be a proprietary (branded) system. My best guess for a name is "invisible frame" but this framing technique doesn't appear when using it as a search term.
How would you replicate this?
Also, does anyone know where to buy or make something like this? (Not knowing what it's called makes searching difficult.) I remember there was a clear piece of smooth plastic (acrylic?) about 0.15 to 0.3cm thick, between the photo and the viewer, that created a borderless effect. I also remember there being a black piece of wood behind the frame so that the frame "pops" out from the wall. The photo was maybe a metallic print.