outdoor often has weather effects such as rain and fog, so outdoor led display must be waterproof. because the outdoor led module and enclosed box structure are processed to form the outdoor led display box, and then the outdoor led full-color display screen is assembled from the box. therefore, the led display panel is the basic unit of the display panel.
the advantages of using led box structure are as follows:
first, it is convenient for dispatching, aging and on-site maintenance.
second, it is convenient for packaging and transportation.
third, it is convenient to install and disassemble on site.
a display module is installed in front of the waterproof box of the outdoor led display screen, and a display drive circuit board is fixed inside the box. the switching power supply is installed on the back cover of the box body. the rear cover of the box body is also equipped with exhaust fans and flushing shutters. the inner and outer surface of the box is sprayed with plastic, which has the functions of anti-corrosion, moisture-proof, anti-oxidation and flame-retardant, and provides the security for the work of the display panel.
as far as the structure of outdoor full-color led display screen is concerned, the first module should be outdoor full-waterproof module, the second module should be painted with three anti-paint on the back, and the third, the box should be waterproof box with good sealing.
generally, outdoor led display cabinets require waterproof testing. after many tests, it is necessary to ensure that the protection level reaches ip65, so as to realize waterproof in real sense, before the final shipment is delivered to customers. in addition, the perishable parts of the structure of the led display panel are mainly metal pillars, circuit boards, wiring terminals and joints, and the steam sensitive parts are circuit boards and pins of electronic components. other parts are engineering plastics (polycarbonate), epoxy, rubber, etc., which are insensitive to water vapor.
the current trend is that more and more customers have more requirements on the structure of waterproof box of led display screen, and begin to develop to light and easy to disassemble box, but from a professional point of view, not completely closed, light and thin can certainly play a waterproof effect, box structure only plays the role of dust and foreign bodies. small space is not conducive to heat dissipation, and if a large area of water intake, it is not conducive to treatment and maintenance.