Somewhere around '99, while in elementary school, my class was given an "Introduction To Future Technology". I don't remember much of what was discussed, but there's one thing I do remember. They passed around some type of panels. They were about 6x4 inches and 1/16 of an inch thick, flexible, and matte black. When you pressed on them with your thumb, the color would change, to bluish green, or reddish orange, depending on how hard you pushed. We were told that this technology would be used to make super thin TV's. Any idea what, if any displays were made with this tech?
I've wondered on and off over the years about what these panels were.