How Do Outdoor LCD Displays Cope with Harsh Environments?

As an LCD display used in outdoor advertising, it has much higher requirements for the use environment than a general display. During the use of outdoor LCD displays, due to different environments, they are often affected by severe weather such as high temperature, typhoons, rainstorms, and thunder and lightning. To keep the display safe and sound in severe weather, what preventive measures should we take?

First, anti-high temperature: Outdoor LCD displays usually have a large area, which consumes a lot of power during the application process, and the corresponding heat dissipation is also large. In addition, the external temperature is relatively high. If the heat dissipation problem cannot be solved in time, it is likely to be Causes problems such as short circuit heating of the circuit board. In production, ensure that the display circuit board is in good condition, and try to choose a hollow design in the housing design to help heat dissipation. During the installation, according to the device situation, insist that the display screen is in a good ventilation condition, and add heat dissipation equipment to the display screen when necessary, like installing an air conditioner or a fan inside to help the display screen dissipate heat.

Second, anti-typhoon: The outdoor LCD display has different installation positions and different installation methods, such as a wall-mounted, inlaid, pillar, and suspended. So in the typhoon season, in order to prevent the screen of the outdoor LCD display from falling, there are strict requirements on the load-bearing steel frame structure of the display. The engineering unit must design and install strictly in accordance with the standards of typhoon resistance, and at the same time have a certain degree of earthquake resistance to ensure that the outdoor LCD display will not fall and cause casualties and other hazards.

Third, anti-torrential rain: There is much rainy weather in the south, so the LCD display itself must have a high level of waterproof protection to avoid rain erosion. In the outdoor environment, the outdoor LCD display must reach the IP65 protection level, the module must be potted and packaged, the waterproof box is selected, and the module and the box are connected with a waterproof rubber ring.

Four, lightning protection

1. Direct lightning protection: If the outdoor large LCD screen is not within the direct lightning protection range of nearby tall buildings, lightning rods must be installed LCD on the top or near the steel structure of the display;

2. Inductive lightning protection: The outdoor LCD display power system is equipped with 1-2 levels of power lightning protection, and the signal line is equipped with signal lightning protection. At the same time, the computer room power system is equipped with 3 levels of lightning protection, and the signal exit/entry equipment in the computer room is added. Install signal lightning protection device;

3. All LCD display lines (power and signal) should be shielded and buried;

4. The front end of the outdoor LCD display and the grounding system of the computer room should meet the system requirements. Generally, the front-end grounding resistance should be less than or equal to 4 ohms, and the grounding resistance of the computer room should be less than or equal to 1 ohm.

Take the above protective measures, no matter how harsh the environment, the outdoor LCD display can also operate safely and safely. 

The above information is provided by LCD display manufacturers.