FED TV | Field Emission Display

Sony OLED TV to launch December 1

TOKYO (Reuters) – Sony Corp said on Monday it would launch an ultra-thin flat TV based on the organic light-emitting diode (OLED) technology on December 1, bringing a new contender to a market dominated by LCD and plasma TVs.

It will be the world’s first OLED TV, the company said.

Sony, the world’s second-largest liquid crystal display TV maker behind Samsung Electronics Co Ltd, expects an 11-inch OLED TV with a thickness of 3 mm to sell for 200,000 yen ($1,700).

OLED panels are said to be energy efficient, make thin and light displays, offer crisp pictures and have strength in showing fast-moving images, suitable for watching sports events and action movies.

But manufacturers still face some technological challenges in making larger panels and driving down production costs to compete commercially with LCD and plasma TVs, analysts say.

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CEATEC 2007 – Sony OLED TV on display

Full story at PCWorld.com

CEATEC 2007 starts this Tuesday and promises lots for OLED TV and FED TV fans.
A big theme at this year’s show will be flat-panel TVs but for once the headlines won’t be all about the biggest TV yet developed.

The prime attraction is likely to be a much smaller set from Sony Corp. based on OLED (organic light emitting diode) technology. Sony has been promising an OLED TV for some time and prototypes impressed visitors to January’s CES show in Las Vegas. OLED promises is brighter, more colorful picture than current LCD (liquid crystal display) or PDP (plasma display panel) sets and Sony plans to unveil its first commercial TV based on the technology at the show.

OLED also has the advantage of being thinner than current flat-panel sets — a challenge that LCD TV makers aren’t taking lying down. Victor Co. of Japan Ltd. (JVC) is reported to be readying a TV set just 4 centimeters thick and will have it on display at Ceatec, according to the Nihon Keizai Shimbun newspaper.

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Nanopantography – new mass production technique for FED (field emission displays)

HOUSTON, September 4, 2007 – Although relatively new to the market, liquid crystal display (LCD) televisions soon may be obsolete, thanks to a new technique created by University of Houston professors.

Vincent Donnelly, Demetre Economou and Paul Ruchhoeft, all of the Cullen College of Engineering, have developed a technique that allows nanotech devices to be mass-produced, which could move the television industry away from the LCD display to the superior field emission display (FED). FEDs use a large array of carbon nanotubes – the most efficient emitters known – to create a higher resolution picture than an LCD.

The nanotech fabrication technique that can mass produce an ordered array of carbon nanotubes and make FEDs happen promises to remove some of the largest practical barriers to mass-producing nanotech devices, Economou said.

Dubbed nanopantography, the method uses standard photolithography to selectively remove parts of a thin film and etching to create arrays of ion-focusing micro-lenses – small round holes through a metal structure – on a substrate, such as a silicon wafer.

“These lenses act as focusing elements,” Donnelly said. “They focus the beamlets to fabricate a hole 100 times smaller than the lens size.”

A beam of ions is then directed at the substrate. When the wafer is tilted, the desired pattern is replicated simultaneously in billions of many closely spaced holes over an area, limited only by the size of the ion beam.

“The nanostructures that you can form out of that focusing can be written simultaneously over the whole wafer in predetermined positions,” Economou said. “Without our technique, nanotech devices can be made with electron-beam writing or with a scanning tunneling microscope. However, the throughput, or fabrication speed, is extremely slow and is not suitable for mass production or for producing nanostructures of any desired shape and material.”

With the right ions and gaseous elements, the nanotech fabrication method can be used to etch a variety of materials and virtually any shape with nanosize dimensions. A standard printing technique that can create lenses measuring 100 nanometers wide could be used to draw features just one nanometer wide if combined with nanopantography.

“We expect nanopantography to become a viable method for rapid, large-scale fabrication,” Donnelly said.
Economou, Donnelly and Ruchhoeft have been working on the technology for four years. UH filed the patent application in December 2006. They hope the technology can become commercially available in five to 10 years and expect it to become a viable method for large-scale production.

About the University of Houston
The University of Houston, Texas’ premier metropolitan research and teaching institution, is home to more than 40 research centers and institutes and sponsors more than 300 partnerships with corporate, civic and governmental entities. UH, the most diverse research university in the country, stands at the forefront of education, research and service with more than 35,000 students.

About the Cullen College of Engineering
UH Cullen College of Engineering has produced five U.S. astronauts, ten members of the National Academy of Engineering, and degree programs that have ranked in the top ten nationally. With more than 2,600 students, the college offers accredited undergraduate and graduate degrees in biomedical, chemical, civil and environmental, electrical and computer, industrial, and mechanical engineering. It also offers specialized programs in aerospace, materials, petroleum engineering and telecommunications.

LCD, LCD TV, FED, FED TV, field emission display, carbon nanotubes

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OLED TV challenger from Sharp

Sharp has introduced a potential challenger to OLED TV and FED TV at IFA 2007 in Berlin.

The one inch thick, LCD TV is available in both 42 and 50 inches and promises a contrast ratio of 100,000:1

Full specs and pricing aren’t available at this time. Check back for more information as it’s released.

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A comparison between SED and FED technology

Richard Fink of Applied Nanotech Inc., presented a very thorough paper entitled “Technical comparison between SED and FED” at Asia Display 2007. It provides solid reading and information that I can’t begin to explain.

This is a must read for FED TV technology enthusiasts or consumers wondering what the differences are between the two technologies. The paper is reprinted here:

Technical comparison between SED and FED

Permission for
Reprint, courtesy Society for Information Display

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Sony OLED TV prototype displayed for Australian retailers

By Matthew Henry

SYDNEY: For the first time in Australia, Sony is showing off working samples of its OLED flat panel TV at the Sony Experience More trade show, giving retailers a window into the future of the brand’s flat panel TV business.

Sony made a big splash at CES in Las Vegas earlier this year when it demonstrated two working OLED TV samples, and the company has again rolled out the cutting-edge technology to wow Australian retailers at its trade-only event being held in Sydney this week.

Sony is making no secret of its desire to see OLED one day replace LCD as its premium flat screen technology, with the brand’s prototype OLEDs already reaching 27 inches and boasting a contrast ratio of 1,000,000:1.

“We consider OLED as the most powerful technology for future displays, such as TV,” said Sony Australia senior product manager – visual displays, Graham Keogh.

Full story at: Current.com.au

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Field emission from fully sealed, large area carbon nanotube field emission display

A short technical FED TV abstract found at:

msu.edu

W.B.Choi, D.S. Chung, I.T. Han, J.H. Kang, H.Y. Kim, N.S. Lee, Y.H. Lee*, and J.M. Kim

Samsung Advanced Institute of Technology, Display Lab.
* Jeonbuk National University
Contact e-mail: wbchoi@sait.samsung.co.kr

Carbon nanotube field emission display (CNT-FED) prototype has been fabricated. This prototype is announced to be the first CNT-FED. Field emission properties of fully sealed CNT-FED were investigated. Carbon nanotubes were fabricated by arc discharge technique, and then purified in sulfuric and nitric acid. Carbon nanotube aligning techniques with the aid of slurry-squeezing and electrophoresis were developed for a large-area CNT cathode. Phosphors are deposited on the anode glass for red, green, and blue colors. The assembled structure was sealed in an atmosphere of highly purified Ar gas by means of a glass frit. The display plate was evacuated down to the pressure level of 1×10-7 Torr. Finally, the active area of 4.5-inch panel with fully sealed carbon nanotubes was produced. The turn-on field for lighting phosphor was 1.5 V/%lm. Brightness of 1800 cd/m2 at 4V/%lm was achieved on the entire area of 4.5-inch panel from the green phosphor-ITO glass. The fluctuation of the current was satisfied for the field emission display. These reliable results enable us to produce carbon nanotube-based large area full-color FEDs in the near future. In this presentation, fabrication techniques and emission properties of large area CNT-FED will be demonstrated. Emission mechanism together with experimental results will be discussed.

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Advance Nanotech field emission display mentioned in press release

Advance Nanotech press release:

Advance Nanotech’s Nanodiamond field emission displayis mentioned in their latest  release  from May 1st.
More information on this FED TV technology developed with the University of Bristol can be found at the Nanotechwire site: Nanotech FED TV project

 

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Sony FED TV news from 2004

It’s always interesting to look back at what companies were saying a few years ago. Everyone would have a flying car in their garage by now and be watching SED TVs. (just kidding about the SED TV). This article from PC World gives an idea of what Sony was thinking a couple of years ago.

Other technologies are under development. Several companies are pursuing OLED (Organic Light Emitting Diode) screens, and Toshiba and Canon are researching SED (Surface-conduction Electron-emitter Display). Sony has been working on FED (Field Emission Display) technology for several years but that has yet to reach commercialization.

“In the next 10 or 20 years there will be many, many different developments and they will coexist with each other,” Kogure says. “Each has its own merit and demerit. Many products will be introduced and in the end the customer will decide.”

Regarding Sony’s work on FED, he says development is still underway. Read more

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FED TV Reviews

Welcome to FED TV Reviews. I’ll be posting excerpts from the latest field emission display news and try to keep you up to date on all FED TV models. A little bit about FED TV from Wikipedia:

A field emission display (FED) is a type of flat panel display using field emitting cathodes to bombard phosphor coatings as the light 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. Read more

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