Why we using bar screen in passenger information system

Using the Bar screen in passenger information system is more and more popular, not just on the train and bus, also the platform are using them either.

We know that using a bar shaped LCD screen inside the carriage is to optimize space utilization, and space is often very limited inside the carriage or on some platforms. The traditional 16:9 screen, due to its horizontal layout, occupies a large amount of space in the vertical direction, which is particularly inconvenient in environments where space is precious. In contrast, bar screens, with their shorter vertical dimensions, can effectively save space and reduce costs. This design not only allows the display screen to be installed more flexibly in various narrow spaces, but also provides passengers with more standing or moving space, improving overall comfort.

Of course, this can’t explain the reason to using bar screen out od the train and bus, it is strange that if you have enough spaces, why don’t using the general LCD?

This is because the efficiency of information display also needs to be considered, and the core task of the passenger information display system is to provide clear and intuitive information. Key information such as route maps and train carriage information are usually arranged linearly, making bar screens an ideal choice for displaying this information. The bar screen can display this information on the same straight line, allowing passengers to quickly capture the desired content, improving the readability and usability of the information. The 16:9 screen, due to its widescreen ratio, may cause information display to be not focused, and passengers may be distracted when searching for information, which in turn affects the efficiency of information acquisition.

Another advantage is the cost advantage of a unified model. Although regular 16:9 display screens can also be used on train and bus platforms, adopting a unified model of strip screen has significant advantages in stability and maintenance costs during large-scale deployment and procurement. A unified display screen model means reducing the variety of spare parts, simplifying inventory management, and also reducing complexity and costs during maintenance and upgrades. In addition, a unified display device also helps maintain consistency in brand image and enhance passengers' trust in the transportation system.

With the advancement of technology, LCD glass manufacturers including LG and AU Optronics (AUO) have been able to manufacture various types of native strip screens. These bar screens are no different in stability from ordinary display screens and can adapt to various passenger information display scenarios. More importantly, these bar screens have been optimized for electromagnetic compatibility and vibration in specific environments such as trains or buses, ensuring stable operation in complex environments and improving system reliability.