The main difference between the LPD and CRT technologies is that the first relies on laser whereas the second uses an electron gun to activate the phosphorescent substance that creates images.
Another competitor, plasma display technology, consists of small cells of ionized gases that emit light–a process that requires a relatively large amount of power. And a conventional laser television, such as the LaserVue, made by Mitsubishi, uses red, blue, and green lasers and a micromirror device that combines and directs the light. This is essentially a rear-projection display that wasn’t popular due to cost.
LPD requires less electricity than competing technologies including LCD and light-emitting diode (LED). IAC reported a 70% reduction in power by switching to LPD, and Prysm says LPD uses up to 75 percent less power than most other display technologies on the market. An LPD device differs significantly from LCD in that more than 90 percent of the original light is lost in the latter process.
The TD2, building block of a video wall, does not suffer the problem of low brightness, contains no toxic component, has no consumables, and generates little heat. Its displays are highly configurable and can be stacked seamlessly to create supersized high-resolution video walls of almost any size or shape.
According to Prysm, the LPD technology has other advantages including great black levels, a wide 180-degree viewing angle, a 65,000-hour panel life with no burn-in issues, completely recyclable components, and their production process is mercury free.
LPD competes with liquid crystal display (LCD), plasma display panel (PDP), surface electron display (SED) and other large-format display technologies.
One disadvantage of LPD is that the displays are deeper than some competing technologies, each TD1 Tile including all peripherals measures almost 17 inches deep. Depending on the frame type, the total installed depth varies between 24 and 30 inches.
The earliest embodiment of this technology, the TD1 tile was launched in June 2010. Prysm began shipping the TD1 tiles in February 2011.
LPD powered by the Prysm digital workplace platform software, is used as a giant touchscreen display, a digital signage and in customer experience centers. The first LPD retail installation went on display at American Eagle Outfitters in New York in late 2010. Other LPD deployments include a 120 feet long by 10 feet tall videowall at media company InterActiveCorp (IAC)’s headquarters building in New York in New York City, a 40-foot, 180-degree, interactive videowall at General Electric’s (GE) Customer Experience Center in Toronto and television studios, and several videowalls for venues including Dubai TV and Sprint. Prysm digital workplace platform is a shared cloud workspace where multiple users can upload and view videos, documents, presentations and other media.