Connect with us

Tech

Ultra-thin 3D display delivers wide-angle, highly-detailed images

Published

on

Ultra-thin 3D display delivers wide-angle, highly-detailed images


Overview of the proposed miniaturized-voxel light field display. (a) Architecture of the light field display system. The 3D display system consists of an ultra-slim and large-area TFDB, dual DBHMs, an LCD panel, and OLLA. The 3D scene of a shark breaching the ocean surface is presented. (b) Schematic of the voxel construction. The highly directional beam is redirected by the OLLA to form compact voxels. (c) and (d) Comparisons between the existing scattering-backlight-based 3D display and the proposed directional backlight-based 3D display. Credit: Optica (2025). DOI: 10.1364/optica.571647

Researchers have developed an ultra-thin 3D display with a wide viewing angle, clear image quality and vivid display depth. By overcoming tradeoffs that typically limit glasses-free 3D displays, the advance could open new possibilities for highly detailed interactive experiences in health care, education and entertainment.

“The new display is just 28 mm thick, dramatically slimmer than conventional directional backlight systems, which typically exceed 500 mm,” said research team leader Xu Liu, from Zhejiang University in China. “This level of compactness, combined with the substantial boost in resolution we achieved, represents an important step toward making the technology practical for real-world products.”

In Optica, the researchers demonstrate an ultra-slim 32-inch directional backlight-based prototype based on the new display design. The prototype is roughly the size of a large computer monitor, has a wide viewing angle of over 120° and a large 3D display volume of 28 × 16 × 39 inches.

“The 3D display maintains crisp image quality across the entire imaging depth, which can help users visualize depth and spatial relationships for tasks requiring precise spatial understanding,” said Rengmao Wu from Zhejiang University, corresponding author of the paper. “This could, for example, help doctors easily see complex anatomical structures such as tumors or fractures in real time.”







The video captures a flower opening, as rendered by the new ultra-thin 3D light-field display. Although the display is just 28 mm thick, it creates a large 3D image volume of 28 × 16 × 39 inches. Credit: Rengmao Wu, Zhejiang University

Seeing 3D without glasses

3D light field displays create a scene by using a directional backlight to direct light in a highly controlled manner. This design allows each eye to see a slightly different image, creating a natural sense of depth without requiring the viewer to wear 3D glasses. The quality of the rendered 3D effect depends on how accurately the voxels—the 3D pixels that make up the image—are constructed, as well as on their number and size, since smaller, well-constructed voxels enable finer detail and more realistic depth.

“In light field displays employing diffraction gratings or cylindrical lens arrays, voxel size is fundamentally constrained by the angular spread of backlight illumination,” said Xinzhu Sang from Beijing University of Posts and Telecommunications in China, who made key contributions to the work. “Our system significantly improves voxel construction accuracy compared to existing scattering backlight-based 3D displays, achieving highly miniaturized voxels and substantial resolution enhancement.”

Freeform optics—advanced optical elements that use freeform surfaces to precisely control light—provided the design flexibility needed to create the ultra-slim yet expansive directional backlight system. Each beam-shaping channel of the display integrates an LED source, an aperture and a freeform lens that precisely redirects to generate uniform illumination with precise directionality. The researchers tiled these beam-shaping channels to create a tailored large-area directional backlight system. The display also uses a module consisting of two layers of micro-triangular prisms to significantly improve backlight irradiance uniformity while preserving the directionality.

Ultra-thin 3D display delivers wide-angle, highly-detailed images
The ultra-thin 3D light-field display has a wide viewing angle of over 120° while maintaining clear image quality and vivid display depth. Credit: Rengmao Wu, Zhejiang University

Clear gains over conventional displays

After making a 32-inch prototype based on the new design, the researchers evaluated its performance using a 50-mm fixed-focus lens with an f/2.8 aperture, a setup often used to simulate how the human eye perceives depth and clarity.

In one experiment, they used the ultra-thin 3D light-field display to render images of an astronaut floating outside a space station. The display exhibited a continuous depth range of 1 m and a viewing angle of more than 120°, providing an immersive and realistic visual experience.

They also compared the new design with conventional scattering backlight displays, finding that it produced six times smaller voxels and maintained resolution even when viewed from farther away. The display was also about 100-fold more efficient at using visual information to generate images than scattering backlight displays.

The researchers are now working to further reduce the thickness and weight of the device while improving its optical efficiency. For commercialization, they point out that more work is needed to develop smaller pixel structures, increase and optimize pixel shape to enhance compatibility with 3D display technology.

More information:
Zijun Zhang et al, Miniaturized-voxel light field panel displaybased on an ultra-slim and large-area freeform directional backlight, Optica (2025). DOI: 10.1364/optica.571647

Citation:
Ultra-thin 3D display delivers wide-angle, highly-detailed images (2025, November 5)
retrieved 5 November 2025
from https://techxplore.com/news/2025-11-ultra-thin-3d-display-wide.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.





Source link

Tech

Can Modular Phone Accessories Finally Evolve Beyond MagSafe?

Published

on

Can Modular Phone Accessories Finally Evolve Beyond MagSafe?


Predating the launch of Moto Mods in 2016, the first batch of Jolla The Other Half concepts included back covers with an extra E Ink display, an infrared camera, and an Angry Birds tie-in that activated themes and ringtones. But probably the most popular was a Blackberry/Nokia Communicator-style slider keyboard made and sold by two entrepreneurs from the original Jolla community. That trend is back in—at CES 2026, accessory company Clicks showed off a magnetic keyboard accessory you can slap on the back of any Qi2 or MagSafe smartphone, though it uses Bluetooth for connectivity.

Quite a bit has changed in what’s achievable, not least more bandwidth, more capability, and more accessible, high-quality 3D printing. “We have seven pogo pins [on the Jolla Phone] which give you the capability to get power out and power in,” says Jolla CEO Sami Pienimäki. “So you can do maybe wireless charging, and you can power external circuit boards.” Pienimäki imagines E Ink interfaces or low-bandwidth radios on the back of its upcoming phone—it has an I3C interface, which delivers bit rates up to 12 megabits per second, allowing data to flow between the phone and the mod, enabling new kinds of smarter modular accessories.

Jolla has promised to release the final phone specifications by the end of the month, with shipping due for the first preorder customers at the end of June. Pienimäki teases that it’s “tempting” for him to release one of Jolla’s own internal concepts for a TOH back cover even earlier as “a showcase of what you can actually do.” (The Jolla Phone doesn’t have FCC approval in the US, but the company is considering a US launch in the future.)

With more than 10,000 preorders since December 2025, Jolla is back in business but still far from mainstream. So why, despite plenty of internet hype over the years, did truly modular phones never quite take off?

“During the LTE days, there was thinking that these devices would morph into ‘cloud phones,’ where the rest of the phone could be cost-optimized,” Fieldhack says. “Swappable parts and lower costs, as most of the compute would be done in the cloud.”

But things changed as flagship phones went from costing $350 to around $1,000. Both the camera and media production and consumption became much more important: “Great displays, great cameras, multiple cameras, more memory, better sound and mics, as well as more elegant and thin devices—this is not easily done on a modular smartphone,” Fieldhack says. “There are huge compromises, and phones are thicker and heavier with less performance. Then, agentic AI, on-device for lower costs and better security, made modular design even less optimal.”

Repairable Modules

The Fairphone Gen 6 has replaceable covers that add extra functionality, like a wallet mod or a grip.

Photograph: Julian Chokkattu

One strong and emerging argument for true hardware modularity is repairability. Another European smartphone maker, Fairphone, has been making that case for over a decade. “It’s about thinking about how do we group the actual phone itself into modules?” says Fairphone chief technology officer Chandler Hatton. The latest FairPhone Gen 6 smartphone is made up of 12 modules. A customer sitting at the kitchen table with a single T5 screwdriver (included) and a guitar pick can repair the phone quickly, easily, and cheaply.



Source link

Continue Reading

Tech

Top Design Within Reach Promo Codes for March 2026

Published

on

Top Design Within Reach Promo Codes for March 2026


Design Within Reach carries some of the best and coolest home decor you can find, from modern couches to fantastic office chairs and fun designers like Herman Miller and Dusen Dusen. It’s not a cheap store to shop at, though, which is what makes these coupons something to jump on. Unlock online-exclusive discounts of up to 50%, free shipping, plus 20% off featured brands and 15% off office furniture bundles with Design Within Reach promo codes and Summer 2025 sale events. Save on hundreds of stylish items, including our favorite Design Within Reach office chairs, plus some other fantastic home gear we’ve earmarked for testing.

Extra 25% Off at Design Within Reach

Upgrade your digs to sleek Eames-esque mid-century modern design for up to 25% off furniture with Design Within Reach promo code EXTRA25. Head to Design Within Reach’s sale page for huge markdowns of live-proof, luxe furniture and household items like storage furniture, bar stools, chairs, couches, cabinetry, accessories, and more. And don’t forget to use that Design Within Reach promo code for even more savings.

Get 15% Off Furniture With Design Within Reach Promo Codes

On Design Within Reach’s website, you’ll see an expansive catalogue with a huge range of furniture to revamp any room—from couches and credenzas to coffee tables and bar stools for way less than normal designer prices. Flos lamps, known for mixing functionality and style, are now 20% off for a limited time. These colorful table lamps start at $255, with wall sconces, pendants, and more on sale.

Summer’s here, and it’s better late than never to get some great outdoor furniture. During Design Within Reach’s outdoor sale event, you can get up to 30% off great outdoor furniture essentials, like outdoor sectionals, chaise lounge chairs, benches, and outdoor tables. You can get bonus savings with sitewide Design Within Reach promo codes during this time. But you can still save thousands of dollars, on top of 50% off markdowns. If you’ve been eyeing the Eames Lounge Chair, Aeron Chair, or Noguchi table, this is your chance to save over $1,500.

One of the easiest ways to get a design within reach coupon is by signing up for their emails. When you sign up for DWR’s email list, you’ll get 15% off your first order, plus, you’ll be the first to know of flash sale events and discount codes when the updates are sent straight to your inbox.

You can ditch the delivery fees with Quick-Ship free shipping offers. You can save up to $699 and get complimentary shipping sitewide on orders of $2,000 or more. Explore the many items with quick-ship and free shipping offers, including sofas, storage pieces, coffee tables, and more iconic furniture. Check out their New to Sale deals too, with 40% off select bar stools, 20% off sectionals, and decor for 50% off. Design Within Reach’s end-of-season sales are some of the best times to save big on those pricier purchases, but you’ll be surprised to find that many new arrivals will go on sale too. While you’re browsing the Sale section, you can use the filter button to organize by category, specific designers, brands, and even price. Unleash your inner interior designer and go wild.

Shop up to 50% Off Design Within Reach Clearance Sale Deals

Buying furniture and other household items can be one of the biggest purchases one makes in their life. Luckily, Design Within Reach has some great furniture deals, with clearance deals that are even steeper than their usual sale discounts. These deals include last-chance furniture discounts, with up to 50% off on all home categories and decor—including light fixtures, tables, ottomans, furniture cushions, and more. Check out Design Within Reach clearance deals and take advantage of the final sale prices, where furniture items are at their lowest prices yet—before they go out of stock.

More Ways to Save on Design Within Reach Furniture

Design Within Reach is also here for small business owners and design industry professionals, to help them jumpstart and elevate their businesses in style. They can apply to the free DWR Trade program, where they will receive sitewide discounts every day, a dedicated Account Executive, exclusive promotions only available to Trade members, and exclusive and discounted Trade pricing across Design Within Reach’s 200 premium design brands in one place.

Our Favorite Design Within Reach Gear

Design Within Reach has a huge range of designers and home pieces, from massive couches to decor and chargers. They carry Herman Miller pieces we love from our guide to the Best Office Chairs, plus chargers from Courant that we recommend in our Best Wireless Chargers guide. We’ve also got our eye on couches and sheets from designers like Hay and Dusen Dusen to test too that you can find at Design Within Reach.



Source link

Continue Reading

Tech

A Billionaire-Backed Startup Wants to Grow ‘Organ Sacks’ to Replace Animal Testing

Published

on

A Billionaire-Backed Startup Wants to Grow ‘Organ Sacks’ to Replace Animal Testing


As the Trump administration phases out the use of animal experimentation across the federal government, a biotech startup has a bold idea for an alternative to animal testing: nonsentient “organ sacks.”

Bay Area-based R3 Bio has been quietly pitching the idea to investors and in industry publications as a way to replace lab animals without the ethical issues that come with living organisms. That’s because these structures would contain all of the typical organs—except a brain, rendering them unable to think or feel pain. The company’s long-term goal, cofounder Alice Gilman says, is to make human versions that could be used as a source of tissues and organs for people who need them.

For Immortal Dragons, a Singapore-based longevity fund that’s invested in R3, the idea of replacement is a core strategy for human longevity. “We think replacement is probably better than repair when it comes to treating diseases or regulating the aging process in the human body,” says CEO Boyang Wang. “If we can create a nonsentient, headless bodyoid for a human being, that will be a great source of organs.”

For now, R3 is aiming to make monkey organ sacks. “The benefit of using models that are more ethical and are exclusively organ systems would be that testing can be meaningfully more scalable,” Gilman says. (R3’s name comes from the philosophy in animal research known as the three R’s—replacement, reduction, and refinement—developed by British scientists William Russell and Rex Burch in 1959 to promote humane experimentation.)

New drugs are often tested in monkeys before they’re given to human participants in clinical trials. For instance, monkeys were critical during the Covid-19 pandemic for testing vaccines and therapeutics. But they’re also an expensive resource, and their numbers are dwindling in the US after China banned the export of nonhuman primates in 2020.

Animal rights activists have long pushed to end research on monkeys, and one of the seven federally funded primate research facilities across the country has signaled it would consider shutting down and transitioning into a sanctuary amid growing pressure. The US Centers for Disease Control and Prevention is also winding down monkey research, part of a bigger trend across the government to reduce reliance on animal testing.

As a result, Gilman says, there aren’t enough research monkeys left in the US to allow for necessary research if another pandemic threat emerges. Enter organ sacks.

Organ sacks would in theory offer advantages over existing organs-on-chips or tissue models, which lack the full complexity of whole organs, including blood vessels.

Gilman says it’s already possible to create mouse organ sacks that lack a brain, though she and cofounder John Schloendorn deny that R3 has made them. (For the record, Gilman doesn’t like the term “brainless” to describe the organ sacks. “It’s not missing anything, because we design it to only have the things we want,” she says.) Gilman and Schloendorn would not say how exactly they plan to create the monkey and human organ sacks, but said they are exploring a combination of stem-cell technology and gene editing.

It’s plausible that organ sacks could be grown from induced pluripotent stem cells, says Paul Knoepfler, a stem cell biologist at the University of California, Davis. These stem cells come from adult skin cells and are reprogrammed to an embryonic-like state. They have the potential to form into any cell or tissue in the body and have been used to create embryo-like structures that resemble the real thing. By editing these stem cells, scientists could disable genes needed for brain development. The resulting embryo could then be incubated until it grows into organized organ structures.



Source link

Continue Reading

Trending