The main tech is a very anti-reflective coating; the best I've seen on a mainstream TV. It is backlit but in Art Mode the backlight is turned down (you can control how much and there is an ambient light sensor that fine-tunes your choice). The combination of low emission, quite low reflection and static content is pretty compelling for me in a lit room.
I have the white frame on the bezel against a light-coloured wall and when displaying art it's much less imposing on the room than an empty black screen. Obviously it uses more power than standby but it's also quite a bit less than a dynamic screensaver.
Don't know that I'd get another one; the bugs in Samsung's software are annoying (I just want it to display the art, or a picture from a single HDMI input, how hard can they possibly make it?) but perhaps that's standard for modern TVs.
Even the “explore technology” link has little extra detail. I don’t even know if it’s backlit.