led display depends on the perspective of LED lamp beads perspective. At present, most of the outdoor display screen selection of horizontal viewing angle of 100 °, vertical viewing angle of 50 °; oval LED, indoor display is selected horizontal and vertical are 120 ° patch LED
LED device theoretical life of 100,000 hours, much larger than the other parts of the LED display life, so as long as the LED device quality assurance, working current appropriate, PCB cooling design is reasonable, rigorous display production process, LED devices will be the entire screen One of the most durable parts of the machine.
Full color display is composed of countless red, green, blue LED composed of pixels, each color LED brightness, wavelength consistency determines the brightness of the entire display consistency, white balance consistency, consistent color.
High-quality LED devices can be very good control of brightness attenuation. According to 1000 hours at room temperature lit 20mA standard, red attenuation should be less than 2%, blue, green attenuation should be less than 10%, so blue, green LED design in the display as far as possible not to use 20mA current, preferably only 70% to 80 % Of the rated current.
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P3 MODULE APPLICATIONS
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