场发射显示器

本條目仍然有文字尚未被翻譯成中文，條目是根據en: field emission display進行翻譯。 歡迎您積極參與翻譯與修訂，目前翻譯的進度為10%。

本文或本章節是關於未上市產品的信息。 它可能包含推测的性质的信息，并且当产品接近推广时而有更多信息可利用后，内容也许会显著改变。

场发射显示器 (FED) 是一种使用场发射阴极来轰击荧光粉涂层充当发光媒介的平面显示器。

场发射显示器与阴极射线管非常相似，但它却只有几毫米厚。取代了单电子枪，场发射显示器(FED)使用了大规模的金属针尖或者碳纳米管阵列(是目前已知最高效的电子发射器)，with many positioned behind each phosphor dot, to emit electrons through a process known as field emission. Because of emitter redundancy, FEDs do not display dead pixels like LCDs even if 20% of the emitters fail. Sony is researching FED because it is the flat-panel technology that comes closest to matching the picture of a CRT.

与LCD类似，FED节能并能够提供一种比现存LCD或等离子电视技术消耗更少能量的平板显示技术特性。因为总的组件更少，它们的制作也更为廉价。然而目前为止，虽然已经有小型的演示品被展示出来，在美国还没有商品化产品。

2007年一个商业化了的类似科技为SED (表面传导电子发射)显示器，FED技术的简易版衍生型。Whereas FED uses a 'Spindt tip' semi-conductor or carbon nanotube emitter, with multiple redundant emitters per area of display^[1], SED uses a single emitter based on palladium-oxide laid down by an inkjet or silk-screen process.^[2]. SED is considered the variant of FED that is currently feasible to mass-produce.

In 2001, Candescent had spent $600 million on producing FEDs with non-carbon material, but it was abandoned, with assets sold to Canon in August 2004, two months after filing for voluntary reorganization under Chapter 11. The UK company Advance Nanotech, in collaboration with the University of Bristol, has developed a similar panel that relies on specially doped diamond dust. Carbon Nanotechnologies claimed production would start in late 2006. ^[3]

[编辑] 潜在优势

• For gamers, game consoles with light guns may be able to react to the object that emits the sufficient lighting dynamics on the screen like on conventional CRTs which emit a flexible range of light dynamics; whereas, an LCD flat-panel monitor will only produce color and illuminate it with a backlight.
• Unlike LCD displays, the FED may have flexible handling of non-standard resolutions that LCDs will emulate poorly due to their native resolutions.

[编辑] 潜在劣势

• Although physically simple, actual operation of field emitters in a production device are anything but simple. Field emitters depend on high electric field strength to tear electrons from the surface. Instead of very high voltages, FEDs use very small radii -- atomic lattice size -- and element spacing for cathodes. This small size renders the cathodes susceptible to damage by ion impact. The ions are produced by the high voltages interacting with residual gas molecules inside the device. FEDs require high vacuum levels which are difficult to attain: the vacuum suitable for conventional CRTs and vacuum tubes is not sufficient for long term FED operation. Intense electron bombardment of the phosphor layer will also release gas during use.^[4]

[编辑] 参见

• Comparison of display technology
• Surface-conduction electron-emitter display (SED)

[编辑] 参考书目

1. ↑ FED Meko, Ltd. （2006-11-22） - 於2006-11-27访问。
2. ↑ SED Meko, Ltd. （2006-11-22） - 於2006-11-27访问。
3. ↑ January 2000 archive of Candescent web site
4. ↑ Light emitting principle of an FED system by SHARP

[编辑] 外部链接

• News and infos about FED-Displays
• How field emission displays work
• Carbon TVs to edge out liquid crystal, plasma?, article from CNET news.com

• Sony-affiliated TV developer targets niche segment, article from CNET news.com
• Candescent and Sony to Jointly Develop FED Technology