LED light is not only an LED light-emitting tube, but also a key component of a full-color LED electronic display. Therefore, it is necessary to use a reliable and well-packaged LED product. The selected LED products must have good stability, small dispersion, HBM greater than 4000V, small attenuation amplitude, strong pressure resistance, brightness, wavelength, high angle consistency, good light distribution effect, and can withstand temperature difference, moisture and ultraviolet rays, etc. Claim.
2. Cabinet
The whole steel plate or aluminum is used, and the door opening structure is adopted. The top of the box is made of pins and the bottom is made of guide sleeves to ensure precise positioning between the boxes. The overall protection of the cabinet complies with the IP65 standard, and the structure must fully consider the heat dissipation problem.
3. Switching power supply
The display power supply adopts the famous brand switching power supply module that has passed the certification. All switching power supplies have undergone rigorous testing, screening and aging. Ensure full compliance with international safety and quality certification requirements to meet the long-term stability and reliability of the display. Under rated operating conditions. Ensure that the service life is greater than 10 years.
4. Connector
Connectors are important connecting devices in the system. High quality connector products should be used to ensure the thickness of the pure gold plating of the connector and maintain the best electrical connection performance. Ensure the system's good electrical connection performance under high temperature and high humidity environment, which can make the system run stably and reliably for a long time.
5. Circuit board
The circuit board is made of flame-retardant epoxy sheet, with reasonable design layout and trace specification to meet the requirements of electromagnetic compatibility and circuit stability. Processing manufacturers should choose products produced by well-known manufacturers.
6. Driver chip IC device
The drive circuit adopts the constant current drive chip of the international famous brand. Maintaining high-precision constant current output and high reliability over a wide temperature range results in significant improvements in display uniformity and reliability. The main materials of the display system should be certified by CE, FCC, UL, CCC, ISO9000, etc. It is believed that if we do the above, adhering to reliable supporting facilities materials and professional R&D design technology will definitely reduce the failure rate of the display and greatly improve the reliability and stability of the LED display .
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