News Article

Paving The Way For Next Generation VR/AR

News

US team shows new approach for controlling direction and polarization of light from thin-film LEDs

Researchers from North Carolina State University and the University of Texas have developed and demonstrated a new approach for designing photonic devices. The advance allows them to control the direction and polarisation of light from thin-film LEDs, paving the way for a new generation of virtual reality (VR) and augmented reality (AR) technologies.

"This is a fundamentally new device architecture for photonic devices," says Franky So, corresponding author of a paper describing the work. "And we've demonstrated that, using our approach, directional and polarised emissions from an organic LED or a perovskite LED without external optical elements can be realised." So is the Walter and Ida Freeman Distinguished Professor of Materials Science and Engineering at NC State.

In practical terms, an approach that allows for directional control of light using thin-film LEDs makes it possible to develop VR and AR headsets that are substantially lighter and less bulky. And the improved efficiency of the devices means that you get more photons out of the display unit for every electron that you put in.

For AR units, it also means that more light from the outside world gets through to the user. In other words, you'll still be able to see the image being superimposed on your view of the real world, and your view of the real world will be clearer.

"Because the device we've demonstrated is simple to fabricate and can be easily scaled-up, our discovery of this strong directional and polarized light emission from OLEDs and perovskite LEDs has important applications for displays, lighting and other photonic applications," So says.

'Directional Polarized Light Emission from Thin-Film Light-Emitting Diodes' by Xiangyu Fu et al; Advanced Materials, 29 January 2021

CS International to return to Brussels – bigger and better than ever!


The leading global compound semiconductor conference and exhibition will once again bring together key players from across the value chain for two-days of strategic technical sessions, dynamic talks and unrivalled networking opportunities.


Join us face-to-face between 28th – 29th June 2022

  • View the agenda.
  • 3 for the price of 1. Register your place and gain complementary access to TWO FURTHER industry leading conferences: PIC International and SSI International.
  • Email info@csinternational.net  or call +44 (0)24 7671 8970 for more details.

*90% of exhibition space has gone - book your booth before it’s too late!

Register


×
Search the news archive

To close this popup you can press escape or click the close icon.
×
Logo
×
Register - Step 1

You may choose to subscribe to the Compound Semiconductor Magazine, the Compound Semiconductor Newsletter, or both. You may also request additional information if required, before submitting your application.


Please subscribe me to:

 

You chose the industry type of "Other"

Please enter the industry that you work in:
Please enter the industry that you work in:
 
X
{megaLeaderboard}
X
{normalLeaderboard}
Live Event