Mjere predostrožnosti za kupovinu opreme za LED ekrane u punoj-boji na otvorenom; na tržištu postoji mnogo vrsta LED pribora za ekrane u punoj-boji. Samo sveobuhvatnijim razumijevanjem pribora za LED ekrane možemo izbjeći ekonomske gubitke uzrokovane nepravilnom kupovinom. Kako bi osigurali da njihova investicija dobije maksimalan povrat. Slijedi analiza nekoliko prijedloga za kupovinu pribora za LED ekrane na otvorenom koje je sastavio Xuxiang Guangxian Optoelectronics editor, u nadi da će pomoći svima.
1. LED lights and chips
LED lamp is not only an LED light-emitting tube, it is a key component of a full-color LED display, so it is necessary to use reliable quality, mature packaging LED products. The selected LED product must have good stability, low dispersion, HBM greater than 4000V, small attenuation, strong voltage resistance, high brightness, wavelength, angle consistency, good light distribution, and resistance to temperature differences, humidity and ultraviolet rays. .
2. LED box
The cabinet used in the selection of LED full-color display accessories is generally made of steel or aluminum as a whole. The overall protection of the LED box conforms to the IP65 standard, and the structure should fully consider heat dissipation issues.
3. Switching power supply
The power supply of the display screen adopts the certified famous brand switching power supply module, so the switching power supply in the outdoor LED display accessories selected must undergo strict testing, screening and aging. Ensure full compliance with international safety and quality certification requirements to meet the requirements of long-term stable and reliable operation of the display. Under the rated working conditions, the service life is more than 5 years.
4. Connector
The connector is an important connection device in the system, and it is also one of the important accessories of the full-color LED display. 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. To ensure the system's good electrical connection performance under high temperature and high humidity environment, it can make the system run stably and reliably for a long time.
5. Circuit board
The circuit board is made of flame-retardant epoxy board, the design layout is reasonable, and the wiring is standardized to meet the requirements of electromagnetic compatibility and circuit stability. Processing factories should choose products produced by well-known manufacturers.
6. Driver chip IC device
When purchasing LED display accessory drive chip ic devices, the drive circuit should use international famous brand constant current drive chips. In a large temperature range, maintaining high-precision constant current output and high reliability can significantly improve the uniformity and reliability of the display. The main materials of the display system should pass CE, FCC, UL, CCC, ISO9000 and other certifications. It is believed that if we do what we said above, adhere to reliable supporting facilities materials and professional RD and design technology, we will definitely be able to reduce the failure rate of the display, and will greatly improve the reliability and stability of the outdoor full-color LED display.
