Judging the quality of LED full color display lamp beads is the key to ensuring the performance and life of the display. Here are some important ways to judge the quality of lamp beads.
First, you can judge from the luminous efficiency of the lamp beads. Lamp beads with high luminous efficiency can produce brighter light at lower power. High-quality lamp beads use advanced chip technology and packaging materials to convert electrical energy into light energy more efficiently. The luminous efficiency can be evaluated by comparing the brightness of different lamp beads at the same current. For example, at the same driving current, lamp beads that emit brighter are generally of better quality. In addition, high luminous efficiency also means energy saving, which is an important advantage for LED displays that are used for a long time.
Secondly, observe the color consistency of the lamp beads. In a full-color display, red, green, and blue lamp beads need to work together to present various colors. Good lamp beads have a high degree of consistency in color performance and can accurately restore various colors. Professional color detection equipment, such as a spectrometer, can be used to detect the wavelength range and color purity of different lamp beads. If the lamp beads of the same batch have small differences in color parameters, a more uniform and true color display can be achieved on the display.
The life of the lamp beads is also a key factor in measuring quality. Generally speaking, the life of the lamp beads can be judged by their rated service life and light decay. The rated service life refers to the time that the lamp beads can continue to work under normal working conditions. Light decay refers to the phenomenon that the luminous intensity of the lamp beads gradually decreases over time during use. High-quality lamp beads have less light decay after long-term use and can maintain stable brightness and color for a long time. You can refer to the life test report provided by the lamp bead manufacturer, or check the actual use feedback of other users to understand the life of the lamp beads.
In addition, it is also important to observe the packaging quality of the lamp beads. Good packaging can protect the chips inside the lamp beads from the influence of the external environment, such as moisture, dust, etc. High-quality packaging materials have high transparency, good thermal stability and mechanical strength. Check whether the package is complete and whether there are defects such as bubbles and cracks, which will affect the performance and life of the lamp beads.
Finally, brand and certification are also references for judging the quality of lamp beads. Lamp beads from well-known brands usually undergo strict quality control and testing processes, and the quality is more guaranteed. At the same time, check whether the lamp beads have passed relevant certifications, such as CE certification, RoHS certification, etc. These certifications can prove that the lamp beads meet certain standards in terms of safety and environmental protection.
