Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
Email Facebook Twitter Google+ LinkedIn Comments

Ions May Rub Out Velvet

Photonics Spectra
Jun 2001
The high-tech liquid crystal display (LCD) that has become ubiquitous in our laptops and desktop computer monitors relies on a decidedly low-tech manufacturing process: To align the liquid crystals, a velvet-covered roller rubs down the polymer film on which they are to be deposited. The technique has worked well enough for small LCDs, but it is inherently dirty and can leave a disruptive static charge, so manufacturers of larger displays with higher resolution have sought a better way.

The researchers at IBM Watson Research Center in Yorktown Heights, N.Y., and the company's other facilities may have found a solution. Reporting in the May 3 issue of Nature, they describe how 50- to 500-eV ions scanned across 3- to 4-nm-thick diamondlike carbon films yield acceptable substrates for aligning liquid crystals. Both 15- and 22-in. LCDs constructed with the technique are reportedly indistinguishable from those made with the rubbing roller.

The noncontact method is cleanroom-compatible and has the potential to lower production costs by integrating it into the manufacturing process. The company hopes to bring it to the factory floor this year and may license it to other manufacturers.

As We Go To PressBreaking NewsConsumerindustrialPresstime Bulletin

Terms & Conditions Privacy Policy About Us Contact Us
back to top
Facebook Twitter Instagram LinkedIn YouTube RSS
©2018 Photonics Media, 100 West St., Pittsfield, MA, 01201 USA,

Photonics Media, Laurin Publishing
x Subscribe to Photonics Spectra magazine - FREE!
We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.