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Jul 26,2021| LED Knowledge
As a display device, the full-color LED display is widely used in different occasions to display information. For example, in places such as stations, airports, cinemas, shopping malls, etc., you can see all kinds of full-color LED screens everywhere in your life, rolling out various texts, images, animations, market quotations and other information. Widespread use depends not only on the information display function of the LED screen itself, but also on its own quality.
Compared with the current large-scale display equipment, P5 outdoor full-color LED display has high brightness, low working voltage, low power consumption, large-scale, long life, impact resistance and stable performance. Therefore, P5 outdoor full-color LED display Color LED display has a broader development prospect.
So, how should we judge the quality of the P5 outdoor full-color LED display?
1. The lamp beads of P5 outdoor full-color LED display;
For the P5 outdoor full-color LED display, LED lamp beads are a key component, and the quality of the LED lamp beads plays a very important role in the quality of the LED display. First of all, LED lamp beads are used in a large number of LED display screens, there may be thousands or even tens of thousands of LED lamp beads per square meter; secondly, LED lamp beads directly affect the performance of the LED display screen and the saturation and clarity of the color. ; Finally, LED lamp beads account for a large proportion of the overall cost of the entire LED display, and its quality directly affects the quality of the display.
2. The brightness of the P5 outdoor full-color LED display;
The brightness of the LED lamp beads is equal to the brightness of the full-color LED display. Generally, the higher the brightness of the LED lamp beads, the greater the margin for the use of current, which is good for saving power consumption and keeping the LED lamp beads stable. 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, LED lamp beads of 100 degrees -110 degrees should be selected to ensure sufficient viewing angle of the full-color LED display.
3. Failure rate of P5 outdoor full-color LED display;
The P5 outdoor full-color LED display is composed of tens of thousands or even hundreds of thousands of groups of red, green and blue LED lamp beads. The failure of any kind of lamp beads will affect the display effect of the entire display screen. According to general industry experience, the failure rate of LED displays from the start of assembly to aging 72 hours before shipment should be no more than one ten thousandth.
4. Attenuation characteristics of P5 outdoor full-color LED display;
The brightness of the LED lamp beads will slowly decay as the use time increases. The decay speed of the brightness of the LED lamp bead is related to the LED chip, auxiliary materials, and packaging technology to a certain extent. Generally speaking, after 1000 hours, 20 mA normal temperature lighting test, 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 consistency of red, green and blue attenuation is correct 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.
5. Antistatic ability of P5 outdoor full-color LED display;
As LED lamp beads are semiconductor devices, they are sensitive to static electricity and can easily cause static failure, so the antistatic ability is very important to the life of the LED display. The stronger the antistatic ability of the LED lamp bead, the longer its life span. Generally speaking, the failure voltage of the human body electrostatic mode test of LED lamp beads should not be lower than 2000V.
6. Consistency of P5 outdoor full-color LED display;
The full-color LED display is composed of countless red, green, and blue LEDs. The brightness and wavelength of each color LED are consistent with the brightness, white balance, and chromaticity of the entire display. consistency.