Specifying the Best LED Displays Begins with Quality Diodes

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by: jim@jhowardco.com
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Date: Mon, 1 Mar 2010 Time: 9:42 AM
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Over time, a digital sign will lose its intensity and its quality will diminish. It's a natural phenomenon known as degradation. It will occur in all electronic signs, but the effects can be worse for some manufactured LED signs than others. nnAfter the first 2000 hours of use, a diode will lose about 20% of its initial brightness, and then degrades at a slower rate until its life expectancy is reached at about 100,000 hours of use (about 10 years).nnSome signs will look patchy because of use of different diode manufacturers, causing uneven colors and shades. Other times they will burn out and have to be replaced because of cheap or inferior diodes and component parts used in the manufacturing process (probably somebody got a great buy on some cheap diodes). Still others may have been manufactured for different electronic wavelengths that are within tolerance of some countries' current but not others, and that causes problems.nnDiode research and development is focused on miniaturization, low-power consumption, higher integration, and compact packaging. Cost-effective production is a major competitive factor in the diode manufacturing business.nThe three biggest companies manufacturing diodes are Cree, in North America, Nichia, in Japan, and Everlight, in Tiawan. These main suppliers are the best because they have the highest, most dependable quality control in the industry. But as excellent as these companies are, Ultravision LED raises the bar on standards for what it uses in its LED displays that customers do not necessarily receive from other companies.nnThere are several reasons to expect more from the electronic signs, LED displays, scoreboards, and stadium billboards from Ultravision LED. nUltravision LED purchases diodes in specific bins of diodes with similar brightness. It's similar to buying carpeting in the same mill run or paint in the same batch. It makes for more brightness uniformity.nnAnd Ultravision LED never, ever uses diodes from two different manufacturers in the same panel display. Other displays have had the unfortunate experience of incongruent diode performance; different hues or unwanted pink-looking casts have been seen, and shadow-like inconsistent images instead of even, crisp, brilliant color in type and images.nnNo other manufacturer of LED displays produces better value than Ultravision LED.n

About the Author

Jim Angel is a freelance copywriter and communications director in Dallas, Texas specializing in Web concepts and strategies for business, with clients nationwide.nhttp://www.jhowardco.comnGet a Unique Version of this Article Article Marketing

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