French Open 2014 is the second Grand Slam tournament in 2014 and it’s the only event held on clay court, attracting large audience. AOTO M4.8 LED displays are serving the audiences on the remarkable positions and main entrances. As one product independently developed by the leading company in high-tier LED display industry, AOTO M4.8 features high resolution, high precision color performance, 20 bit processing depth, ultra - high refresh rate and high contrast with extreme low power consumption, lightweight and extraordinary visual impact. AOTO M4.8 carries IP66 rating, which is perfect for both indoor and outdoor environment. Stable and precise mechanical design and patented lock design ensure the fast and seamless set-up.
As an LED display system solution provider, AOTO Electronics devotes itself to providing comprehensive solutions for top sports events. Besides French Open, AOTO LED display systems have been serving other top international sports events, like FIFA, UEFA, 2012 Olympics in London. In the upcoming June, AOTO’s SP Series and M series products will be serving 2014 World Cup in Brazil.
LED广告屏已逐渐出现在大街小巷,形形色色,装扮着我们的城市,然而LED广告屏也是有寿命的,不进行合理的维护,将不能再使用。那么,决定LE广告屏寿命的因素是什么呢?如何对症下药尤为重要,下面我们就来看看决定LED广告屏寿命的因素。
显示屏的好坏怎么分辨
视觉上‘色匀’指标从光学技术上包括两部分指标:色度均匀性和亮度均匀性。若两个指标任何的一个处理不合理,那么给LED显示屏的视觉上就会造成‘颜色很不均匀、一块块的’感觉;
因此,控制LED显示屏的色匀就毫无疑问的从LED显示屏个发光单元的发光的色度和亮度着手。
3 色度均匀处理技术
正常情况,人的肉眼颜色分辨阀值为5nm,以红色LED为例:将两个发光波长分别为620nm和626nm的LED放在一起点亮,人的肉眼将感觉出这两个LED发出的光颜色有差异
那么从理论上讲,一张显示屏若采用同一发光波长的LED的话问题就很好的解决了。但是,从LED发光PN结制造来看,要批量性‘生长’(即半导体制造的一个术语)同一个波长的产品是不可能的,正常情况下一张‘生长’完成后的LED芯片其发光波长在几十个nm范围内,这个是半导体发光芯片制造工艺本身的特点,因此,若采用同一波长的LED将意味着显示屏的制造成本惊人的增加——因为只能通过这样的方式解决:购买更大数量的LED,从中分选出发光波长最集中的那一部分来使用,以CREE日亚NICHIA公司为例,销售的LED发光波长范围为8nm,要想从中分选出5nm的LED,正常情况下要增加3