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Topic: Field emission display

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	U.S. Patent: 6228667 - Field emission displays with reduced light leakage - May 8, 2001
		Field emission displays use electron emission from an emitter to illuminate a screen which displays a corresponding image for the user.
		In field emission displays it is desirable to align the extractor or grid to the emitter.
		Ideally, the field emission display 10 is controlled by the conducting state of the transistor 20 as controlled by its gate bias.
	www.everypatent.com /comp/pat6228667.html (3338 words)

	Field emission displays (Site not responding. Last check: 2007-11-06)
		A field emission display (FED) is a type of flat panel display using phosphor coatings as the emissive medium.
		Field emission displays are very similar to cathode ray tubes, however they are only a few millimeters thick.
		Instead of a single electron gun, a field emission display (FED) uses a large array of fine metal tips or carbon nanotubes (which are the most efficient electron emitters known), with many positioned behind each phosphor dot, to emit electrons through a process known as field emission.
	www.fedtvs.net (170 words)

	Field Emission Display Technology (MEM archive, Oct 98)
		FED technology is similar in operation to CRTs in that phosphor is excited by a stream of electrons traveling through a vacuum.
		Emissions from the microtips of high-voltage anodes radiate in a roughly 60° cone.
		Field sequential color means that an entire screen image is individually painted in each of the three primary colors, one at a time.
	www.devicelink.com /mem/archive/98/10/010.html (1269 words)

	Carbon Nanotubes Monthly - January 2006 - Carbon Nanotubes: Field Emission Applications (Site not responding. Last check: 2007-11-06)
		Field emission represents a type of quantum tunnelling in which electrons pass through a barrier in the presence of a high electric field.
		Overall, field emission performances concern the current density at a given voltage, the turn-on field (the macroscopic field required to produce a given minimal emission current) and the threshold field (the macroscopic field required to produce a useful operating current).
		Field emission displays are thin and exhibit large areas (as LCD and plasma displays), but also feature good brightness, contrast and resolution (as cathode ray tube displays).
	www.nanosprint.com /nanotubes/newsletter/monthly_0106/application.html (2083 words)

	HDTV-CNT-FED Display
		FED CNT addresses the power issue as they are intrinsically very efficient using the same phosphor as the old CRT technology and as result use substantially less power than plasma displays.
		Generating visible light from the surface of a plasma display is a three-step process that requires a gas to be ionized, which in turn emits ultraviolet light that stimulates a phosphor to produce visible light.
		The central element of the carbon nanotube field emission display (CNT-FED) television is the field-emission cathode, which works by combining the phenomenon of quantum tunneling with the operating principle of a traditional lightning rod.
	www.vxm.com /CNT_FED_Display.html (1112 words)

	Field emission - Wikipedia, the free encyclopedia
		Also known as Fowler-Nordheim tunneling, field emission is a form of quantum tunneling in which electrons pass through a barrier in the presence of a high electric field.
		In the field of vacuum electronics, field emission is seen as an alternative to thermionic emission, with advantages such as dramatically higher efficiency, less scatter of emitted electrons, faster turn-on times, compactness, and, in many cases, redundancy.
		Field emission limits the maximum operating voltage for high voltage vacuum devices such as vacuum capacitors and vacuum switches.
	en.wikipedia.org /wiki/Field_emission (297 words)

	Field emission display having an invisible spacer and method
		A field emission display (100) includes a cathode assembly (102), an anode plate (104), and a spacer (108), which extends between the cathode assembly (102) and the anode plate (104).
		A discharging period neutralizes positive electrical charge (244) and renders the spacer (108) invisible to a viewer of the field emission display (100).
		Operating a field emission display (100) to render a spacer (108) invisible by providing a cathode, assembly (102), an anode plate (104), and a spacer (108) comprised of a spacer material with a dielectric constant less than 100 and neutralizing positive electrical charge (244) on spacer (108).
	www.patentalert.com /docs/000/z00043210.shtml (246 words)

	PR Leap: Making Nanotube TVs happen
		Some believe field emission display (FED) technology, utilizing carbon nanotubes (CNT) as electron emitter, will be the biggest threat to LCD’s dominance in the panel display arena and that FED is the technology of choice for ultra-high definition, wide-screen televisions.
		FEDs, in a sense, are a hybrid of CRT televisions and LCD televisions.
		In their laser-assisted pattern deposition of CNT field emission cathodes on different substrates the Korean researchers achieved favourable emission characteristics, high pattern resolution, with feature size down to 10 µm, high feasibility of using various substrates, good CNT adhesion and fast deposition rate.
	www.prleap.com /pr/28366 (668 words)

	Field-emission display - Patent 6414444
		A display according to claim 1, wherein said anode stripes are transparent to light emitted by said fluorescent layer.
		The display comprises a base plate 1 and a faceplate or screen 2 extending parallel with the base plate and spaced a small distance from it by a vacuum gap 3.
		The display does not require any internal partitions, such as is needed in plasma displays to confine the plasma to the addressed pixel, the fl mask on the faceplate is sufficient to ensure the necessary contrast.
	www.freepatentsonline.com /6414444.html (2133 words)

	Triode Field-Emission Display Constructed by Ceramic Cold Emitter
		[1] measured that emission originated from the tip of molybdenum cones with an about 1.5 μm in tall and 50 nm in a tip radius was the maximum current of 50~150 μA per cone at the applied voltages in the range of 100~300 V. In addition, Saito et al.
		Field emission properties of the element were studied using a triode display device.
		Satyanarayana, A. Hart, W. Milne and J. Robertson, ”Field emission from tetrahedral amorphous carbon”, Diam.
	www.azom.com /details.asp?ArticleID=3082 (2253 words)

	eMagin Corporation (formerly FED Corporation) - Field Emission Displays Combine Benefits of Cathode-Ray Tubes and ...
		FED Corporation was a start-up company that was pioneering a new method for producing FPDs called field emission display.
		FED Corporation was a start-up company that proposed to develop a technology base for field emission displays, which would be an alternative to LCDs and CRTs.
		FED applied to ATP in 1993 for cost-shared funding to support this development, and funding was approved for a three-year project that began in 1994.
	statusreports.atp.nist.gov /reports/93-01-0154.htm (2799 words)

	Field emission display device - Patent 7088037
		In FED structures and devices a plurality (array) of microelectronic emission elements are employed to emit a flux of electrons from the surface of the emission element(s).
		To ensure an opening for emission current to pass from the tip 118, an open area 126 is etched from the passivation layer 124 down to the insulating layer 112.
		Lastly, a panel containing the formed FED device 100 is sealed under a high temperature 326 to a faceplate panel area containing phosphors 130, where the areas containing phosphors 130 are positioned to align with a respective current emitter.
	www.freepatentsonline.com /7088037.html (2547 words)

	TEXAS INSTRUMENTS SAYS FIELD EMISSIVE DISPLAY IS MATURING TECHNOLOGY WITH DISTINCT ADVANTAGES FOR FLAT PANEL DISPLAYS
		This FED technology is based on cold electron emission by electric field effect and medium-low voltage cathodoluminescence.
		In an FED, display electrons are emitted from cold cathode emitters versus a red hot wire filament used in a CRT electron gun.
		The idea of using field emission in flat panel displays is more than 20 years old, coming from the first experimentation in the 1960s with the use of conventional field emitters.
	www.ti.com /corp/docs/press/company/1994/422asc.shtml (899 words)

	Technology Review: Nanotech on Display
		Field emission displays are an old idea that suddenly became more attractive in 1991, when Sumio Iijima, an electron-microscope specialist at NEC Research in Tsukuba, Japan, discovered that carbon molecules could link together into long, thin cylinders later dubbed nanotubes.
		Field emission displays will, in theory, solve many of these problems.
		At the same time, the pixels in a field emission display can turn on and off faster than those in a liquid-crystal display, meaning that fast-moving images don't smear.
	www.technologyreview.com /InfoTech/13880/page2 (788 words)

	The History of Field Emission Displays
		This development was the enabling technology the concept for using FEA’s in a matrix addressed display (FED) conceived by the SRI team of which Capp was a member, and patented by Crost, Shoulders and Zinn in 1970 (US Patent 3,500,102).
		Field emission occurs when an externally applied electric field at the material surface thins the potential barrier to the point where electron tunneling occurs, and thus differs greatly from thermionic emission.
		One of Futaba's contributions to the development of FED technology was its work on "getters." A getter is a chemical substance that is introduced into the cavity between the FED anode and cathode to reduce cathode current fluctuations caused by residual gases in the cavity.
	www.indiana.edu /~hightech/fpd/papers/FEDs.html (8725 words)

	Vacuum Fluorescent, Electroluminescent, Field Emission, and Other Emissive Displays
		The field emission display is a flat cathode ray tube that uses a matrix-addressed cold-cathode to produce light from a cathodoluminescent phosphor screen, and has received considerable attention in the last few years.
		Field emission plots for the diamond-coated Si tips are shown in Figure 4.5.
		One facility heavily involved in FED development that the team could not visit due to its remoteness was the Vacuum Microelectronics Laboratory at the Polytechnical Institute in Krasnoyarsk, Russia.
	www.wtec.org /loyola/displays/c4_s1b.htm (1131 words)

	Extron Electronics
		FEDs are similar to CRTs in that an FED illuminates phosphors by means of varying the electron voltages applied to them.
		These electrons are instantly attracted to the phosphors between the microtips and display's anode (or ITO layer) as a result of its much higher electrical charge.
		FED pioneer Pixtech is, at the time of this writing, working on a 15" model for use with home computers or as a television monitor, while the release of a 5.7" model is imminent.
	www.extron.com /technology/archive.asp?id=at-fed (313 words)

	[No title]
		Field Emission Display The field emission display is a flat cathode ray tube that uses a matrix-addressed cold-cathode to produce light from a cathodoluminescent phosphor screen, and has received considerable attention in the last few years.
		Dr. Evgenij Sheshin believes that carbon emitters are the best candidates for practical field emission cathodes due to their self-healing characteristics, which lead to uniformity of emission, (106 emission sites/fiber are possible).
		Of the technologies seen on this WTEC trip, the quantoscope and field emission display activities were near or at the worldwide state of the art.
	www.wtec.org /loyola/word/fsudisp/05_ch4.doc (2242 words)

	LEP and FED Display Technology
		The Field Emission Display is a cousin to the incumbent Cathode Ray Tube, and is based upon the same idea of exciting an emissive phosphor material with accelerated electrons.
		The key to the FED is the little known technology of vacuum microelectronics, pioneered by Stanford Research Institute in the early sixties.
		While the FED is still well behind the CRT in the key areas of resolution performance, cost and durability, it would appear that the major technical issues have been overcome and the device is ready to enter volume production.
	www.ausairpower.net /OSR-0299.html (2742 words)

	Saint-Gobain Display Glass - Field Emission Displays
		Field Emission Displays (FED) are new and promising flat panel displays with much reduced power consumption compared to PDP or LCD.
		The difference is in the electron emitters: instead of one gun spraying electrons, FED use millions of microscopically small electron-emitting cathodes which are matrix-addressed.
		FED feature high brightness and high efficiency, with a wide viewing angle, and fast response time for video viewing, with perfect color quality.
	www.sgdisplayglass.com /applications/Field_Emission_Displays.html (215 words)

	Field emission display - Wikipedia, the free encyclopedia
		Like LCDs, FEDs are energy efficient and could provide a flat panel technology that features less power consumption than existing LCD and plasma display technologies.
		A similar technology to be commercialized in 2007 is the SED (surface-conduction electron-emitter) display, a simplified variant of FED technology.
		Whereas FED uses a 'Spindt tip' semi-conductor or carbon nanotube emitter, with multiple redundant emitters per area of display
	en.wikipedia.org /wiki/Field_emission_display (492 words)

	DuPont Electronics : Displays : Knowledge Center : Technical Terms
		Field Emission Display (FED): Field emission displays are similar to CRTs in that a beam of electrons excites phosphors which then emit visible light.
		Instead of a single electron gun, a FED display uses a large array of carbon nanotubes (CNTs) or fine metal tips (Spindt tips, named after the inventor) as electron emitters.
		Field Sequential Display: An LCD display architecture in which RGB field images are sequentially displayed so that the viewer sees a full-color frame.
	www2.dupont.com /Displays/en_US/knowledge_center/terms_f.html (490 words)

	TI scraps display plan - a field emission display project with PixTech is dropped - Company Business and Marketing ...
		PixTech, which continues to serve as the FED technology hub for remaining alliance members Raytheon, Motorola and Futaba of Japan, said TI was its only partner to have pursued the notebook path.
		Holzel added that FED technology retains a number of advantages which the other members of the alliance are reaping.
		David Mentley, director of display industry research for Stanford Resources, observed that TI's latest decision is indicative of a pronounced trend which has seen them over the past 15 years abandon other flat panel display (FPD) technologies in the face of competition.
	www.findarticles.com /p/articles/mi_m0EKF/is_n2110_v42/ai_18158004 (855 words)

	Field emission from fully sealed, large area carbon nanotube field emission display (Site not responding. Last check: 2007-11-06)
		The display plate was evacuated down to the pressure level of 1x10-7 Torr.
		The turn-on field for lighting phosphor was 1.5 V/%lm.
		The fluctuation of the current was satisfied for the field emission display.
	www.pa.msu.edu /cmp/csc/NANOTUBE-99/abstracts/31.html (254 words)

	Application of carbon nanotubes to the field emission display
		Field emission display (FED) having carbon nanotube (CNT) emitters has been fabricated for several years in Samsung [1].
		In this presentation, the parameters to enhance field emission property of CNT will be discussed.
		The emission properties of CVD grown multiwalled CNT are similar with those of physically synthesized single wall CNTs.
	www.fy.chalmers.se /conferences/nt05/abstracts/I5.html (219 words)

	Nano-Proprietary, Inc. (formerly SI Diamond) - Using Field Emission Display Technology to Demonstrate HDTV
		FED project objectives included developing the technologies to create a working diamond FED prototype with its own integrated chip driver circuitry to present a viable alternative to LCD-based FPDs.
		SI Diamond discovered that CVD nano-diamond films exhibited field emission similar to its proprietary amorphic diamond and was superior because it did not have the graphite contamination problem.
		The FED technology required the development of a thin film field emission array cathode, a reliable long-life screen phosphor anode, a vacuum tight envelope with good sealing, and an integrated high-voltage chip driver to control the display.
	statusreports.atp.nist.gov /reports/94-01-0282.htm (3982 words)

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