Why can't the LED light band be broken from the fracture, but it can be light from the middle?
From your point of view, the whole bunch of LED should be connected in parallel, and the lines are all connected.The reason why the port is not bright: most likely the following is broken under the port pad.
In addition, it is important to note that when the voltage is raised, the current of an individual diode does not exceed its maximum current limit, otherwise it will decrease the service life and even burn the led.
In order to ensure the brightness of the LEDs in the LED light band, the diode is usually connected in series. There are two possible reasons for the phenomenon:1) when one of the diodes is broken, the entire LED light band will not turn on;2] more diodes in series require a higher power supply voltage, and when the voltage is low, the entire led band will not turn on.
