Texas company demos carbon nanotube TV | CNET News.com: "In a few years, TVs based on these concepts will begin to challenge rear-projection TVs and plasmas in the market for large TVs (50 inches plus), according to Applied Nanotech CEO Zvi Yaniv.
In conventional CRT TVs, an electron gun fires electrons at a phosphor-coated glass divided into pinpoints to create images. The electrons, however, need to disperse in a large vacuum, which is why TV tubes are so large and bulky.
In so-called field emission display (FED) TVs, electrons get filtered into an array of thousands of tips only a few nanometers wide, which then deliver electrons to illuminate the screen. As a result, these TVs can be thin, like LCDs or plasmas.
Another advantage comes in cost. The tips, whether nanotubes or diamonds or some other material, in a FED are printed onto the display glass. By contrast, LCD panels and plasma screens require more ornate manufacturing processes. Decades of LCD know-how combined with the economics of electronics manufacturing mean that FED TVs won't likely challenge LCDs in the mass market. Yaniv, however, says FEDs' advantages will shine in large screens.
The printing techniques utilized were compatible with 60-inch diagonal Advanced TV and 80-inch diagonal High Definition TV formats, Applied Nanotech said."
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