Liquid Crystal ("LC") flows like a fluid, but like its namesake can have molecular alignment like a crystal (solid) in optical clarity. TN, STN, and FSTN configurations utilize nematic type LC fluid. Nematic (Greek Origin: "Nema" meaning thread) can be electrically-driven to form thread-like orientations to align towards a predetermined axis. Paring this capability with top and bottom polarization film allows only specific light to pass or become blocked by the top polarizing film layer. The technology can operate off of ambient light an entirely reflective material behind the display and optionally include a light source beneath the panel with transmissive or partially transmissive properties. The term "transflective" is often used for partially transmissive and partially reflective backing material.