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Technology丨Grasp the four points to easily distinguish the quality of the LED display unit board

154 views admin 2021-01-18

Full-color LED displays are composed of the most basic LED unit boards, not only full-color displays, but also other conventional displays. If the unit board has a problem, it will directly affect the display effect of the entire full-color LED display, and even directly cause a black screen. Therefore, it is vital to effectively distinguish the quality of the full-color display unit board. How to distinguish the quality of the LED display unit board has become a problem that many manufacturers are concerned about. The majority of friends can consider from the following aspects.

IC device

The brand of IC devices is of great importance. In the later period, we will consider what model and how many ICs we use. If we use more or less, it will greatly affect the quality of the LED unit board. In order to save costs, even a few LED display manufacturers will deliberately reduce the number of IC devices when producing cell boards, or use irregular IC devices of other brands, which is very unfeasible.

LED lamp beads and chips

In addition, maintain the humidity of the environment where the stage rental LED display is used, and do not let anything with moisture properties enter your stage rental LED display. Powering up the stage rental screen with humidity will cause corrosion of the stage rental LED display components and cause permanent damage, so it must not be taken. Also, if water enters the stage rental screen for various reasons, please turn off the power immediately and contact the maintenance personnel until the display board in the screen is dry before use.

Welding quality

Soldering refers to checking whether there are any missing components, mis-sticking, component pin burr short circuit, etc., and checking whether the solder joints of the straight plug-in unit are smooth and round, the board surface is clean and tidy, and there is no false soldering. Also check the flatness of the luminous dot matrix and the consistency of the ink color.

LED unit board material

In recent years, many LED unit board manufacturers have adopted cheap flame-retardant paper board materials or single-sided fiberboard as PCB circuit boards for LED lights in order to compete with more customers at low prices. If it is a ignorant person, it may not feel any difference, because it will not be any different when you first use it. However, after a few months of use, various problems such as moisture, ultraviolet damage, oxidation, oxidative fracture, etc. are prone to occur, which will easily lead to the scrap of the entire LED unit board. The regular display unit board uses a double-sided full glass fiber PCB board. Although the cost is relatively higher, it is more safe for users in the future.

The above are the 4 important points to distinguish the quality of LED unit boards. The quality of the LED display unit board directly affects the display effect of the display, so you must carefully distinguish it when purchasing the LED display.

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