When we purchase LED large screens, it is necessary to consider the dimensions, specifications, energy consumption, environment and other factors of LED large screens. Here are how to select LED electronic screens.
Screen scale planning
When planning the screen size, there are three primary elements:
1. Display content requirements
2. Site space conditions
3. Unit size or pixel size of electronic screen
Generally, the maximum resolution of LED electronic screen is 768 lines 1024 columns. Special electronic screens can exceed this limit. The common method is to combine two screens; The other is to use ultra-high speed chips to plan circuits, but the cost is high.
The scale of the external frame of the indoor electronic screen can be customized according to requirements, which should generally be proportional to the screen size.
As for the outdoor screen, the pixel scale should be determined first. The selection of pixel scale should not only consider the requirements of display content and site space elements mentioned above, but also consider the installation orientation and sight distance. If the installation orientation is farther from the main sight distance, the pixel size should be larger. As the pixel size is larger, there are more luminous tubes in the pixel, the brightness is higher, and the useful sight distance is also farther. However, the larger the pixel scale, the lower the pixel resolution per unit area and the less content displayed.
Power consumption and power request
The power consumption of the electronic screen is divided into uniform power consumption and maximum power consumption. Uniform power consumption, also known as operation power consumption, is the actual power consumption at ordinary times. The maximum power consumption refers to the power consumption at the starting or full bright pole conditions.
Note: the AC220V power input grounding terminal of the microcomputer has been connected with the microcomputer shell.
Questions about LED outdoor electronic screen
The first questions of outdoor screen are as follows:
The electronic screen is installed outdoors. It is often exposed to the sun and rain, and the wind blows the dust cover. The working environment is poor. If the electronic equipment is wet or severely damp, it will lead to short circuit or even fire, failure or even fire, and loss. The electronic screen may be attacked by strong electricity and strong magnetism caused by lightning.
The ambient temperature changes greatly. When the electronic screen works, it will generate certain heat. If the ambient temperature is too high and the heat dissipation is poor, the integrated circuit may not work normally, or even be burned, so that the display system cannot work normally.