The ETLC display is a internal three-colour (RGY) LED display panel. Its design enables to display text in one or two lines. The text can be scrolled or static. The display receives the text from the communication bus or uses the resources stored in its internal memory (e.g. advertisement text). The displays provides the following information when communicating with an R&G on-board computer: line number, direction, current and next stops, date, time, name day names and other information from the on-board system, e.g. temperature, speed, car no., ads, etc.