How to divide positive and negative backlight?

  LED backlight production is usually first designed drawings, and then make physical samples, and the LED backlight two pins is the connection method; if it is SMD lights, the need to use the light board, the design of the light hole will need to take into account the spacing of the light board, and then or welding wire or welding line, as the connection method. Then the question arises, the LED backlight connection method of positive and negative pole should be distinguished?

  General drawings will use A or K to indicate the positive and negative, A for positive, K for negative, if it is a LED direct light, it is the use of LED beads, the pin is a long and a short, so that when the installation is not easy to make mistakes. If it is a SMD lamp, the welded wire or wire will also be divided into long and short, according to this distinction, you can also correctly distinguish between positive and negative poles.

  Therefore, it is recommended that manufacturers in mass production before, must check the drawings of the positive and negative poles have not been marked right, check and then arrange for staff production, if there are still installed wrong, it is most likely accidentally take the reverse, the number will not be more, but the return will also be more trouble, so the installation of lights and testing must pay attention to see the positive and negative poles of the light.