30-inch carbon nanotube based field emission display

May 12, 2004
field emission display

Samsung demonstrated a working carbon nanotube display prototype in 1999, and has almost completed the development of a field emission display (FED) with a 30-inch diagonal screen, according to a Korea Times report. The report said that Japan's government-backed New Energy and Industrial Technology Development Organization (NEDO) is likely to spend more than $5 million on FED projects in 2004 in an attempt to wrest leadership of display technology back from South Korea.

As the transition from Cathode-Ray Tube displays to LCD displays accelerates, various technologies are competing to replace LCDs. The current front runner for flat screens appears to be OLED displays, which have the potential to create clearer, sharper, and brighter images than LCDs. However, researchers are making steady progress with using carbon nanotubes to make displays.

The FED is a new type of flat-panel display in which electron emitters, arranged in a grid, function individually to generate colored light. It is touted as a breakthrough technology because it can accommodate a thin panel like liquid crystal display (LCD) and offers a wider field-of-view and higher image quality. Field-emission displays use much less power than plasma displays because they’re intrinsically more efficient.

The nanotube-based cathodes in this case are created using a process proprietary to Samsung in which a combination of multi and single-wall tubes are mixed into a photosensitive resin. The resin is then screen-printed onto the cathode backplane and photoexposed to define the cathode regions. Samsung’s device differs from most field-emission displays using so-called lateral field emitters.

Full story: Korea Times

Explore further: Atom-thick CCD could capture images: Scientists develop two-dimensional, light-sensitive material

add to favorites email to friend print save as pdf

Related Stories

NASA launches new Orion spacecraft and new era

Dec 05, 2014

(AP)—NASA's new Orion spacecraft zoomed toward a high point of 3,600 miles (5,800 kilometers) on an orbital test flight Friday, ushering in a new era of exploration that could one day put people on Mars.

Feds say Web privacy firm deceived consumers (Update)

Nov 17, 2014

Federal regulators said a respected Internet privacy company gave its seal of approval to commercial websites and mobile apps but failed to check whether they were indeed meeting standards for safeguarding customers' data.

Retailers use smartphone technology to upgrade shopping

Nov 05, 2014

Chris Mason thinks of Brookstone stores as the retail version of canaries in the coal mine - harbingers of change in the air. And this year, the chain is all over the smartphone as a weight-bearing pillar of American life.

Recommended for you

Gold nanorods target cancer cells

Dec 18, 2014

Using tiny gold nanorods, researchers at Swinburne University of Technology have demonstrated a potential breakthrough in cancer therapy.

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.