LED display technology is a screen display technology that uses a matrix of LEDs as the light source . LED displays are widely used in passanger information systems, both small and large display sizes showing monochrom and/or color information (RGB LED). Their brightness and robustness allows them to be used outdoors where they are visible in the sun. In recent years, they have also become commonly used in destination signs on public transport vehicles, as well as variable-message signs in the public transport area.The LED matrix can be designed with different picel pitch (distance between LEDs) and consist of several modules (modeular design). They reaction time allows to show video information on the display.
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