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In the past
you missed the bus because the
common LED screen on the middle
of a bus face was covered by the
bus ahead in a crowded bus station.
you do not worry about missing the
bus because the new LED screen
on the rearview mirror can be seen
clearly by people at the side of a
crowded bus station.
When the rearview mirror on the LED screen is shown in green fonts , it reminds we that the door of the bus is open and it allows passengers to get on the bus .
When the rearview mirror on the LED screen is shown in red fonts , it reminds we that the door of the bus is closed and it bans passengers getting on the bus .
Heqi Zhao Hao Hu Xiafei Ding Jiang Wu