Featured Research

from universities, journals, and other organizations

Super-Thin Computer Screens Near Reality For Use In Tight Spaces

Date:
September 11, 1997
Source:
University Of Florida
Summary:
Hospital rooms, surgery suites, fighter plane cockpits and tanks -- high-priced real estate where space is at a premium. They also are perfect places for super-thin color computer monitors that will result from technology being developed at the University of Florida.

Related Articles


GAINESVILLE, Fla. --- Hospital rooms, surgery suites, fighter plane cockpits and tanks -- high-priced real estate where space is at a premium. They also are perfect places for super-thin color computer monitors that will result from technology being developed at the University of Florida. Researchers are working to provide color for computer screens so small they can be mounted on the head or helmet and still display brilliant, accurate colors comparable to a color television picture.

"Now that we have computer-assisted surgery and smart weapons, the last thing surgeons and fighter pilots need is a big computer monitor crowding their valuable and small work space," said Paul Holloway, professor of material science engineering at UF, a member university of the Phosphor Technology Center of Excellence.

Here, experiments are under way to improve the efficiency of thin films of phosphor that emit light and color when struck by electrons. These phosphor films will be used in a new breed of thin color monitors.

What makes today's computer color monitors so long and deep is the cathode ray tube inside. The electron gun at the back of the cathode ray tube needs length to bombard the inside of the TV screen with electrons, said Holloway.

The new, slim color monitors instead will use Field Emission Display (FED) technology. FED monitors, equipped with hundreds of miniature electron guns firing a short distance instead of the single large electron gun firing a long distance, will spray electrons to create images. Phosphor films will react to the electrons to create color. But brilliant, lasting colors will be a reality only after researchers perfect efficient, long-lived, thin phosphor films.

True, today's laptop computers have thin screens, but they use liquid crystals that are either monochrome or, at best, render poor quality lighted colors and have other drawbacks, said Holloway.

"You can't see liquid crystal screens from a large angle. Also, the liquid crystals that provide the visual image are not rugged enough to stand up to vibrations such as those that rattle a tank," said Holloway. "Neither limitation is good for monitors used in combat or surgery."

Holloway said making dependable, thin FED monitors with good color display is vitally important to medicine and defense.

"Soon, instead of looking up at a computer screen when doing endoscopic procedures, surgeons will be able to wear a helmet with a small, thin, FED screen just in front of their eyes," he said. "Of course, in surgery it is important to be able to see tissue colors accurately and right in front of you. FEDs with good color will make that possible. Likewise, soldiers driving tanks will wear goggles that will have a display feature. But the visual display must work at 20 degrees below zero in Siberia or 120 degrees above in Saudi Arabia. Liquid crystals are too temperature sensitive."

Head- and helmet-mounted displays have been around awhile, Holloway said, but current versions are cumbersome and heavy. FED technology promises to make monitors wafer-thin compared with today's. Once the phosphors for FEDs are perfected, they will be useful in virtual reality systems as well as in the "real time" world of the cockpit or surgery suite. Holloway said the UF researchers want to get the best colors possible from the thin phosphors while expending the least amount of electron energy.

"We can make the phosphors work for 1,000 hours, but we're shooting for 10,000 hours," said graduate student Sean Jones, who is working to improve the efficiency of thin film phosphors. "Also, the color quality standard set by your color TV is what we're working toward."


Story Source:

The above story is based on materials provided by University Of Florida. Note: Materials may be edited for content and length.


Cite This Page:

University Of Florida. "Super-Thin Computer Screens Near Reality For Use In Tight Spaces." ScienceDaily. ScienceDaily, 11 September 1997. <www.sciencedaily.com/releases/1997/09/970911034537.htm>.
University Of Florida. (1997, September 11). Super-Thin Computer Screens Near Reality For Use In Tight Spaces. ScienceDaily. Retrieved March 31, 2015 from www.sciencedaily.com/releases/1997/09/970911034537.htm
University Of Florida. "Super-Thin Computer Screens Near Reality For Use In Tight Spaces." ScienceDaily. www.sciencedaily.com/releases/1997/09/970911034537.htm (accessed March 31, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Tuesday, March 31, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Soda, Salt and Sugar: The Next Generation of Taxes

Soda, Salt and Sugar: The Next Generation of Taxes

Washington Post (Mar. 30, 2015) — Denisa Livingston, a health advocate for the Dinι Community Advocacy Alliance, and the Post&apos;s Abby Phillip discuss efforts around the country to make unhealthy food choices hurt your wallet as much as your waistline. Video provided by Washington Post
Powered by NewsLook.com
UnitedHealth Buys Catamaran

UnitedHealth Buys Catamaran

Reuters - Business Video Online (Mar. 30, 2015) — The $12.8 billion merger will combine the U.S.&apos; third and fourth largest pharmacy benefit managers. Analysts say smaller PBMs could also merge. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
S. Leone in New Anti-Ebola Lockdown

S. Leone in New Anti-Ebola Lockdown

AFP (Mar. 28, 2015) — Sierra Leone imposed a three-day nationwide lockdown Friday for the second time in six months in a bid to prevent a resurgence of the deadly Ebola virus. Duration: 01:17 Video provided by AFP
Powered by NewsLook.com
These Popular Antibiotics Can Cause Permanent Nerve Damage

These Popular Antibiotics Can Cause Permanent Nerve Damage

Newsy (Mar. 27, 2015) — A popular class of antibiotic can leave patients in severe pain and even result in permanent nerve damage. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins