The size of the full-color LED display is designed to meet the important requirements when designing the screen size. Here are some explanations for everyone:
(1) the need to display content ;
(2) Space conditions of the venue ;
(3) display unit template size ( indoor screen ) or pixel size ( outdoor screen );
(4) The edge must be calculated.
First, power consumption and power requirements
The power consumption of the display is divided into average power consumption and maximum power consumption. The average power consumption, also known as the working power , is the actual actual power consumption. The maximum power consumption is the power consumption during extreme conditions such as startup or full illumination. The maximum power consumption is an essential factor for AC power supply ( wire diameter, switch, etc. ) . The average power consumption is generally 1/3 of the maximum power consumption .
The display screen is a large-scale precision electronic device. For safe use and work, the AC220V power input terminal or the AC220V power input terminal of the computer connected to it must be grounded.
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Note: The AC220V power input ground of the computer is connected to the computer case.
Second, outdoor full-color LED display should consider the problem
The main problems of the outdoor screen are as follows:
(1) The LED display is installed outdoors, often exposed to the sun and rain , and the working environment is bad. If the electronic equipment is wet or seriously damp, it may cause a short circuit or even a fire, causing malfunction or even fire, resulting in loss ;
(2) The LED display may be subject to strong electric and magnetic attacks caused by lightning ;
(3) The ambient temperature varies greatly. When the display screen work itself must produce a certain amount of heat, if the ambient temperature is too high heat and bad, the integrated circuit may not work properly, or even destroyed, so that the display system does not work;
(4) The audience is wide, the distance between the distance is long, the field of vision is wide ; the ambient light changes greatly, especially in direct sunlight.
Third, in response to the above special requirements , outdoor full-color LED display needs to do the following:
(1) The joint between the screen body and the screen body and the building must be strictly waterproof and leakproof ; the screen body should have good drainage measures , and the water can be discharged smoothly once the water accumulation occurs ;
(2) Installing lightning protection devices on LED displays and buildings ;
(3) Install the ventilation equipment to cool down, so that the internal temperature of the screen is between -10 °C and 40 °C . Screen behind the top mounted fan, exhaust heat, depending on how much the use of axial fans screen body size;
(4) The outer packaging of the display medium is currently the most popular with a rectangular cylinder with a cover, a silicone seal, and no metallization ; its appearance is exquisite and beautiful, durable and durable, with direct sunlight, dustproof, waterproof and high temperature protection. , anti-circuit short circuit " five defenses " features.
In summary, the installation of outdoor full-color LED display must be cautious, must be waterproof, if you accidentally leak water must do a good job of drainage ! Large outdoor LED full-color display must be lightning protection device, must also be in the later stage Do regular inspections and regular cleaning !
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