Has the LED screen in your store started to "cry"? Last month, I was passing by the pedestrian street and saw a milk tea shop with the bottom half of the advertising screen black. The owner was blowing it hard with a hair dryer - boy, this operation made me shake my head. Today we will talk about this troublesome issue and teach you three ways to solve the problem of LED screen leakage.

▍Leak position locking technique: these three places are the most dangerous
Friends who are new to the industry may not know this.​ ​80% of LED screen leaks occur in three locations​​：

1. Box joints (especially second-hand refurbished screens)
2. Power interface sealing ring
3. Heat dissipation hole dust screen

Friends who installed floor tile screens in the gym last year should remember that water mist appeared on three screens after continuous heavy rain. Later it was discovered that the waterproof glue process was missing during the splicing of the cabinets. After refilling the glue, it took more than half a year and no problems occurred again. Here’s a reminder:​ ​Choosing a model with IP65 protection can really save a lot of trouble​ ​, especially fence screens installed outdoors.

▍Three tips for emergency response: rescue at critical moments
If the screen has been flooded with water, don't blame it yet. Remember this processing order:

1. Turn off the power immediately! Operation with power on will burn the driver IC.
2. Use a dry towel to absorb surface moisture (do not blow directly with a hair dryer)
3. Contact after-sales service to open the lid and dehumidify

Here is a living lesson: a rental screen used for events in a shopping mall was caught in the rain, and the staff blew it with a heat gun. As a result, the module deformed, and the repair cost cost an extra 20,000 yuan. So,​ ​For professional matters, you have to find professionals​ ​, now regular manufacturers have 24-hour technical response, which is much better than messing around on your own.

▍Waterproof and moisture-proof black technology: these configurations cannot be omitted
When buying a screen, ask "How is it waterproof?" to avoid many pitfalls. The current mainstream solutions are:

• Automotive-grade sealant strips are used at the joints of the box
• Power interface with silicone protective cover
• The cooling system has a labyrinth-type splash-proof design.

I remember seeing a case where a transparent window screen of a cosmetics store in Seoul used a model with intelligent humidity monitoring. When the screen detects that the ambient humidity exceeds 70%, it will automatically start heating and dehumidification. There has been no malfunction during the typhoon season in the past two years. So,​ ​Spend more money to choose a good configuration, you can really worry less and worry more​​。

Editor's opinion: Choosing an LED screen is like looking for a partner. It's not enough to just look at the appearance (display effect), but also to look at the "physical quality" (protection level). It is recommended that novices focus on three points: the monthly production capacity of the manufacturer (a monthly output of more than 10,000 square meters is reliable), whether there is a full-process quality inspection (especially the aging test), and whether the after-sales service can quickly come to your door. For manufacturers that supply products to Japan and South Korea, their products must pass salt spray resistance tests and are particularly suitable for use in coastal areas. Don't believe the "absolutely waterproof" nonsense. The key is to see the actual protection level and after-sales guarantee written in black and white in the contract.

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