A Japanese rail operator has brought back to the platform one of the symbols of train stations of yesteryear: the mechanical flip-flap display, known in Japan as “patapata.” The new display is fully digital but mimics both the movement of the letters and the characteristic sound of the old signs.
The departure boards that clattered as they changed train destinations and times have almost completely disappeared from Japanese train stations. However, a rail operator in the Tokyo–Yokohama area has found a way to bring them back without the costs and maintenance issues of the original mechanisms.
Keikyu Corporation, the private operator serving rail lines in Tokyo and Kanagawa Prefecture, has installed a digital display at Kamiooka Station in Yokohama, inspired by the old mechanical flip-flap displays.
In Japan, these are known as “patapata”, an onomatopoeic term that mimics the sound produced by the panel’s flaps as they rotated to display a new destination.
It looks and sounds just like the original panel
The new display is fully digital, but train information does not appear instantly, as it does on a standard screen.
The letters and numbers “rotate” sequentially until they reach the correct destination and time, mimicking the movement of the old panels. The system even reproduces the sound of the flaps—one of the elements that made the “patapata” panels so popular among passengers and railway enthusiasts.
\ That “Patapata” Is Now Digital! /
Kamiooka Station’s departure information display was renewed
starting with the first train on July 2 ✨
Inspired by the flap-style information display,
we’ve adopted the “Digital Patapata” 🆕#Keikyu#KamiookaStation#Patapata#DepartureInformation pic.twitter.com/FD9NNR0irB
— Keikyu Official (@keikyu_koho) July 2, 2026
The display went live on the platform at Kamiooka Station on July 2. It is the first digital installation of its kind used by Keikyu as a departure display on a platform.
The operator also posted a video, which quickly went viral. The video surpassed 2 million views in less than 24 hours.
The last mechanical display was removed in 2022
The old flip-board displays were once common at stations in Tokyo and the Kanto region.
The last such display used in regular rail service in the region was removed by Keikyu in February 2022 from Keikyu Kawasaki Station. It was replaced with an LCD screen, and its disappearance sparked numerous reactions from rail enthusiasts.
For many passengers, the sound and movement of the clacking panels were closely tied to the atmosphere of Japanese train stations.
Keikyu, however, has not completely abandoned the idea. The first digital version appeared discreetly in March 2025 in the entrance area of Aomono-Yokocho Station, where it was used as an information display.
The public’s reaction was so positive that the operator began exploring the possibility of expanding the concept to other stations.
Nostalgia, without the maintenance of the old mechanisms
Recreating an authentic mechanical display would have been expensive and difficult. The old installations had numerous moving parts, and spare parts and maintenance would have been a challenge.
The digital version retains the familiar look and sound, but the information can be updated via a modern system, without the thousands of flaps and mechanisms behind the original displays.
The Japanese public’s reaction was largely enthusiastic. Many users appreciated that the operator did not simply install a conventional screen but tried to preserve part of the visual and auditory identity of the old stations.
Others noted that the digitally reproduced sound also serves a practical purpose: it alerts passengers that the information on the display is changing.
Keikyu has not yet announced how many such displays it might install. However, the success of the video and passengers’ reactions could turn the experiment into a recognizable feature at several stations across the operator’s network.
Share on:
