Greening Up Video Walls - Laser Phosphor Displays Cut Energy Use by 75%
Image via Prysm
Video walls are big energy consumers, but they're popular for billboards, concerts and other events. While we have greener options such as LED technology, Prysm, Inc points out that the largest LED video walls can still suck up as much as $1 million worth of electricity per year. So the company has launched what they're calling the greenest solution for video walls - Laser Phosphor Display, or LPD. It is heralded as the most eco-friendly option with low power consumption, long life span, high picture quality and zero toxins used in manufacturing. LPD is a new category of large format displays, using a laser engine to excite a phosphor screen. As we learned at CES this year, phosphor is helping decrease the energy consumption of OLED displays, and boost the color quality of already energy efficient LED displays.
According to Prysm, "As the lasers scan across the surface the phosphors emit in the red, green and blue colors with very rapid response. The lasers then modulate by turning on and off for each pixel to create an image. This method results in substantial power efficiency and extended lifetime. This benefit contrasts with conventional displays that must filter or modulate a backlight that remains on constantly."
The technology behind LPDs means the display consumes up to 75% less electricity than other technologies, all with using low-impact manufacturing processes and non-toxic materials. The details from Prysm are sparse, though, and we don't have specifics on life-span of the product or exactly how much energy it does in fact consume.
"Prysm's technology addresses the key segment of large-area displays with the promise of low power operation and scalability," said Paul Semenza, Senior Vice-President at DisplaySearch, the leading display market research firm. "This type of technology could open up new markets in consumer and professional applications."
As video walls gain popularity for billboards on buildings, this type of low energy, long-life display technology could mean a big cut in a building's carbon footprint. Of course, making your LED display solar powered also helps. But this technology is also useful in places like concert halls, news rooms, control centers...anywhere that large scale displays are needed. If the energy efficiency, quality, low cost, long lifespan, and non-toxic manufacturing are accurate claims (and that's a lot to claim...), then LPD technology could be a game changer.
We're taking it with a grain of salt until we see some actual numbers.
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