
Figure 1. The actual 3D holographic display, and an electron microscope image of the non-periodic pinholes.
Researchers have designed an ultrathin display that can project dynamic, multi-coloured, 3D holographic images, according to a study published in Nature Communications.
The system’s critical component is a thin film of titanium filled with tiny holes that precisely correspond with each pixel in a liquid crystal display (LCD) panel. This film acts as a ‘photon sieve’ – each pinhole diffracts light emerging from them widely, resulting in a high-definition 3D image observable from a wide angle.
The entire system is very small: they used a 1.8-inch off-the-shelf LCD panel with a resolution of 1024 x 768. The titanium film, attached to the back of the panel, is a mere 300 nanometres thick.
“Our approach suggests that holographic displays could be projected from thin devices, like a cell phone,” says Professor YongKeun Park, a physicist at KAIST who led the research. The team demonstrated their approach by producing a hologram of a moving, tri-coloured cube.

Figure 2. Three-dimensional dynamic color hologram operating at 60 Hz
Specifically, the images are made by pointing differently coloured laser beams made of parallel light rays at the small LCD panel. The photon sieve has a hole for each pixel in the LCD panel. The holes are precisely positioned to correspond to the pixel’s active area. The pinholes diffract the light emerging from them, producing 3D images.
Previous studies from Professor Park’s group have used optical diffusors for the same purpose, but the size of the device was bulky and difficult to be operated, and it took a long period of time to calibrate. In the present work, on the other hand, the group tailored their photon sieve to demonstrate a simple, compact and scalable method for 3D holographic display. This technique can be readily applied to existing LCD displays.
Applications for holograms have been limited by cumbersome techniques, high computation requirements, and poor image quality. Improving current techniques could lead to a wide variety of applications, including 3D cinema viewing without the need for glasses, watching holographic videos on television and smart phone screens.
Learn more: A Hole in One for Holographic Display
The Latest on: Holographic display
[google_news title=”” keyword=”holographic display” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
via Google News
The Latest on: Holographic display
- LA company opens Miami showroom for hologram deviceson December 7, 2023 at 4:00 pm
The company, the maker of a self-contained hologram machine, opened its newest office and studio in the Waterford Business District near Miami International Airport. Its seven-foot machine displays ...
- Exploring advances in waveguide-based augmented reality displayson December 7, 2023 at 9:28 am
In recent decades, augmented reality (AR) has evolved from a futuristic concept to a tangible and pervasive technology. AR enhances our perception and interaction with the environment by seamlessly ...
- Looking Glass Go is a pocket-sized holographic display for viewing 3D images without special glasses (crowdfunding)on December 7, 2023 at 7:25 am
Looking Glass Go is a pocket-sized holographic display for viewing 3D images without special glasses (crowdfunding) ...
- Looking Glass portable 3D display smashes pre-order goalon December 6, 2023 at 8:04 am
Described as the world’s first portable holographic display, Looking Glass Go combines the realism of high-resolution holograms with the creative power of generative AI, giving users a brand new way ...
- Looking Glass Go is a portable holographic display you can view 3D spatial photos onon December 6, 2023 at 12:01 am
Called Looking Glass Go, the "world's first" pocketable holographic display is ideal for viewing 3D spatial photos on as you can rotate it (or move around it) to see subjects from different angles.
- The Looking Glass Go is a folding holographic display that fits in your pocketon December 5, 2023 at 5:42 pm
We’ve been following Looking Glass for years — it’s one of the few startups dedicated to building 3D displays where digital objects appear to live inside or leap off the screen. In 2020, it introduced ...
- Looking Glass unveils Looking Glass Go portable holographic displayon December 5, 2023 at 12:00 pm
Shrinking the holographic experience into a cell phone-sized device, Looking Glass Go promises an easier and more accessible way to convert 2D and 3D imagery, including characters generated by ChatGPT ...
- This Tiny Holographic Display Brings Your Photos to Life Like Harry Potteron December 5, 2023 at 10:45 am
Looking Glass launched its Go mini holographic display on Kickstarter that turns any photo into a 3D hologram.
- Looking Glass Factory kickstarts first portable holographic displayon December 5, 2023 at 5:02 am
The Looking Glass Factory brought personal holographic imagery to the desktop back in 2020 with the launch of the Portrait. Now the company has again taken to Kickstarter for what's billed as the ...
- ARHT CAPSULE Showcases Hologram Content at Prime Video's Candy Cane Lane Premiere Starring Eddie Murphyon November 29, 2023 at 3:59 pm
today announces that Prime Video has once again utilized the ARHT CAPSULE hologram display to showcase content from the upcoming Eddie Murphy holiday movie Candy Cane Lane at The Culver City theatre ...
via Bing News