| 摘要 |
A traffic indicator has a base, a circuit board mounted in the base, an LED panel mounted in the base and a protect lid mounted on the base to cover the circuit board and the LED panel. The LED panel is controlled by the circuit board to display traffic lights such as red, green or yellow and traffic symbols such as right and left turn indications. Furthermore, the traffic indicator also displays countdown information about the remaining seconds after which the present displayed traffic light will be changed. Therefore, a single traffic indicator described above is able to replace the conventional traffic lights. Since the traffic indicator has only one display screen, the traffic symbols can be displayed in a larger size to improve the recognition on traffic signs at crossroads.
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