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| SED stands for "surface-conduction
electron-emitter display" This innovative technology has the brightness and contrast of CRT displays (these are the LARGE boxes most of us use today), but consumes one-third less power than of plasma TVs. The new TV uses beam-emitting technology similar to the old-style cathode-ray tube televisions, and delivers similar clear imagery but onto a flat panel. The SED is a concept that works on the same basic principle as a CRT. In a CRT monitor, an electron gun at the back of a tube blasts electrons at phosphors on the screen to create an image. Rather than using an electron gun, an SED uses a film of individual electron emitters coated on a glass plate and positioned a few millimeters behind another glass plate coated with phosphor. This design allows for many more pixels per square inch and for large, flat panels that are less than 4 inches deep.Canon and Toshiba have been jointly developing the technology for four years. Little, however, was known about SEDs until now. With sharper pictures, superior brightness, more realistic images, and improved viewing angles, SEDs could displace plasma, DLP, and other high-definition monitors. SEDs also consume less than half the power used by CRT monitors, or about a third of the energy used by plasma screens. The way we are watching TV is changing . The SED flat screen technology is better than anything in the shops today. Up till now there were only two types of flat screen: LCD and plasma. Both of these are good, but SED is even better. It will be interesting to see how it reacts to the introduction of IPTV (Internet Protocol Television). IPTV is basically taking a TV stream or programme and wrapping it in the same protocol that's used over the internet. There's lots of content companies like CBS, Time Warner, even the BBC, who want to make their content digitally available, so, your IP address is suddenly very very valuable! That is why cable and telephone companies are racing each other to supply you with the fastest broadband or fibre connection they can. They want to own the pipeline that supplies Video On Demand as well as the holy grail of consumer packages, called "the triple play": VoIP phone service, data service and IPTV in one. What's going to be needed over time is not a PC in your living room but a small piece of consumer equipment, a set-top box, which does what a PC does in your home but looks like something you'd expect to find in your hi-fi cabinet. Microsoft is also deeply into IPTV, providing software for set-top boxes that are replacing current TV units. The advantage of IPTV is interactivity. It is a two-way communications stream offering thousands of TV channels, shopping services, video games on demand and interactive advertising. It is hard to imagine how anyone will be able to live without a broadband connection for much longer... |
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