Outdoor LED screen what are factors affect quality
A high-quality outdoor LED display not only has good playback effect, smooth and clear picture, but also has a long service life and low failure rate. So what are the factors that affect the quality of outdoor LED display?
First of all, LED lamp beads are the most used in the entire outdoor full-color LED display, and there may be thousands or even tens of thousands of LED lamp beads per square meter. Secondly, the LED lamp beads directly determine the performance and color saturation and clarity of the outdoor LED display.
The main indicators of the quality of LED lamp beads are:
1. Brightness of outdoor full-color LED display
The brightness of the LED lamp bead determines the brightness of the outdoor LED display. The higher the brightness of the LED lamp bead, the greater the margin of the current used, which is good for saving power consumption and maintaining the stability of the LED lamp bead. LED lamp beads have different angle values. When the brightness of the chip is fixed, the smaller the angle, the brighter the LED, but the smaller the viewing angle of the display. Generally, 100-110-degree LED lamp beads should be selected to ensure sufficient viewing angle of the full-color LED display.
2. Attenuation characteristics of outdoor full-color LED display
The brightness of LED lamp beads will gradually decay with the increase of use time. The decay speed of the brightness of LED lamp beads is related to the LED chip, auxiliary materials, and packaging process. Generally speaking, after 1000 hours and 20 mA lighting test at room temperature, the attenuation of red LED lamp beads should be less than 7%, and the attenuation of blue and green LED lamp beads should be less than 10%. The white balance of the full-color LED display will have a great impact in the future, which will affect the display fidelity of the display.
3. the failure rate of outdoor full-color LED display
The LED display is composed of tens of thousands or even hundreds of thousands of groups of red, green and blue LED lamp beads. Even if the lamp bead is aged for 72 hours, the failure rate will not be higher than 1/10,000.
The above are the main factors that affect the quality of outdoor LED displays. If you are planning to buy outdoor LED displays, you can learn more about them. In addition, you can consult several LED display brand manufacturers to be aware of them.