split-flap display
A mechanical information display board that uses flipping character panels, commonly seen in train stations and airports for departure/arrival information.
The split-flap display at the station updated the destinations with a fluttering sound.
Solari-style display, a common brand name often used synonymously with split-flap displays.
Electronic bulletin board; a digital alternative to mechanical split-flap displays.
Compound of 反転 (reversal), フラップ (flap), 式 (style), 案内 (guidance), and 表示機 (display device). The term describes the mechanical flipping mechanism used to show information.