Researchers combine OLEDs and metasurfaces to advance holographic displays
New research from the University of St Andrews is paving the way for advanced holographic technology that could transform smart devices, communication, gaming, and entertainment. In a study published in Light, Science and Application, researchers created a new optoelectronic device by combining Holographic Metasurfaces (HMs) with Organic Light-Emitting Diodes (OLEDs).
This new approach overcomes the main barriers that have prevented holograms from being used more widely. While holograms have traditionally been created using complex and expensive lasers, this method is simpler, more compact, and potentially cheaper to apply.
The technology behind the breakthrough
The innovation lies in the first-time use of two existing technologies together to create the basic building block of a holographic display.
- Organic Light-Emitting Diodes (OLEDs): These are the thin film devices widely used to create colored pixels in mobile phone and television displays. As flat, surface-emitting light sources, they are ideal candidates for miniaturized light-based platforms.
- Holographic Metasurfaces (HMs): These are thin, flat arrays of tiny structures called meta-atoms—roughly one-thousandth the width of a human hair—that are designed to manipulate the properties of light.
How the holographic display works
When light from an OLED passes through the holographic metasurface, each carefully shaped meta-atom acts as a pixel, slightly modifying the properties of the light beam. By exploiting the principle of light interference, these modifications allow the device to create a pre-designed, complex image on the other side.
“OLED displays normally need thousands of pixels to create a simple picture. This new approach allows a complete image to be projected from a single OLED pixel!”
Professor Graham Turnbull from the School of Physics and Astronomy explained the efficiency of the new method.
A step change for emerging applications
This breakthrough provides a clear path toward developing miniaturized and highly integrated metasurface displays. Until now, researchers could only create very simple shapes with OLEDs, which limited their practical use.
“Holographic metasurfaces are one of the most versatile material platforms to control light. With this work, we have removed one of the technological barriers that prevent the adoption of metamaterials in everyday applications.”
Andrea Di Falco, a professor in nano-photonics, noted that this development will “enable a step change in the architecture of holographic displays for emerging applications, for example, in virtual and augmented reality.”
Featured image credit
FAQs
Frequently Asked Questions
What is a Premium Domain Name? A premium domain name is the digital equivalent of prime real estate. It’s a short, catchy, and highly desirable web address that can significantly boost your brand's impact. These exclusive domains are already owned but available for purchase, offering you a shortcut to a powerful online presence. Why Choose a Premium Domain? Instant Brand Boost: Premium domains are like instant credibility boosters. They command attention, inspire trust, and make your business look established from day one. Memorable and Magnetic: Short, sweet, and unforgettable - these domains stick in people's minds. This means more visitors, better recall, and ultimately, more business. Outshine the Competition: In a crowded digital world, a premium domain is your secret weapon. Stand out, get noticed, and leave a lasting impression. Smart Investment: Premium domains often appreciate in value, just like a well-chosen piece of property. Own a piece of the digital world that could pay dividends. What Sets Premium Domains Apart? Unlike ordinary domain names, premium domains are carefully crafted to be exceptional. They are shorter, more memorable, and often include valuable keywords. Plus, they often come with a built-in advantage: established online presence and search engine visibility. How Much Does a Premium Domain Cost? The price tag for a premium domain depends on its desirability. While they cost more than standard domains, the investment can be game-changing. Think of it as an upfront cost for a long-term return. BrandBucket offers transparent pricing, so you know exactly what you're getting. Premium Domains: Worth the Investment? Absolutely! A premium domain is more than just a website address; it's a strategic asset. By choosing the right premium domain, you're investing in your brand's future and setting yourself up for long-term success. What Are the Costs Associated with a Premium Domain? While the initial purchase price of a premium domain is typically higher than a standard domain, the annual renewal fees are usually the same. Additionally, you may incur transfer fees if you decide to sell or move the domain to a different registrar. Can I Negotiate the Price of a Premium Domain?
In some cases, it may be possible to negotiate the price of a premium domain. However, the success of negotiations depends on factors such as the domain's demand, the seller's willingness to negotiate, and the overall market conditions. At BrandBucket, we offer transparent, upfront pricing, but if you see a name that you like and wish to discuss price, please reach out to our sales team.
How Do I Transfer a Premium Domain?
Transferring a premium domain involves a few steps, including unlocking the domain, obtaining an authorization code from the current registrar, and initiating the transfer with the new registrar. Many domain name marketplaces, including BrandBucket, offer assistance with the transfer process.
