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What is the AK pin definition of the backlight module?
May 05, 2024
418
CN Display Manufacturer, Global Supplier
May 05, 2024
418
We already know that many displays require backlight modules to provide light sources to achieve good visual effects. When we talk about display pins, we will involve the definition of each pin. Among them, the AK definition we often refer to what is it then?
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AK pin definition
Simply put, the AK pin refers to the positive and negative poles of the power supply terminal on the backlight module. As we all know, the light source of the backlight is generally an LED lamp, which is an electrical appliance. The electrical appliance needs to be connected to the power supply to work properly. The applicable current of the LED lamp is DC, so the positive and negative poles need to be distinguished. The AK definition of the backlight module is the representative symbol used to identify the positive and negative poles connected to the power supply.
"A" is the abbreviation of "Anode" in English, which represents the positive electrode.
"K" is the abbreviation of "kathode" in English, which stands for negative electrode.
As shown in the picture below: In the display module, we will also clearly mark the corresponding positions of A and K on the PCB board.
In addition, in the product specification book, when defining each pin, in order to facilitate engineers to develop products efficiently, we will also clearly indicate which pin number is the AK pin. As shown below:
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CN Display Manufacturer, Global Supplier