The world’s biggest metro system has broken another record with the installation of the world’s largest underground LED video wall.

The recently opened Line 14 of the Shanghai Metro unveiled the 112m long display in the passageway of Lujiazui station, which is claimed to have a resolution of 44928px x 1056px, which uses smart inkjet technology to ensure the brightness of the screen stays constant throughout the day.

The 23 individual screen modules that make up the complete wall can also be controlled separately and display different pieces of content, from adverts to news broadcasts to government public information.

As well as this, the screen is designed to survive a magnitude-eight earthquake, as well as having IP54 humidity, water, dust and static protection, combined with a heat dissipation system to avoid heating the area the screen is displayed.

Line 14 was opened just before New Year’s Eve 2021 as a relief line for Line 2, the busiest part of the Shanghai Metro which sees over 1.5m riders per day travel on that part of the line alone, and travels along a very similar route and via many similar stations.

Whilst it is the largest video screen in an underground metro system that is also the largest in the world by length, it is not the largest video wall in the world.

That record goes instead to the LG OLED screen based at the Dubai Aquarium and Underwater Zoo in the United Arab Emirates, which is the largest and the highest resolution screen in the world and has been since August 2017.

The largest video screen is still the LED display at The Place in Beijing, which measures 250m across by 30m tall, although it consists of a much lower resolution display than the one in Lujiazui station.