Emerging Eye-Worn Display Technologies
According to the Nikon Keizai Shimbun report on December 20, new technologies related to eye-worn displays, including contact lens-type and high-speed light-control models, are continually emerging. A Micro-LED display developed by Professor Yasuhiro Takagi of Tokyo University of Agriculture and Technology and Shintomi Co., Ltd. can be worn directly on the cornea of the eye.
Innovative Design: Micro LED Display for Direct Eye Wear
The display is described as a transparent, round object that can be placed on the fingertip. When worn and focused on, English text of over 500 words appears right in front of the wearer.
The micro-display has a thickness ranging from 0.15mm to 0.25mm and is worn in a manner similar to corrective contact lenses. It incorporates a micro-semiconductor chip, which receives data wirelessly from devices like smartphones and displays it. Since the device is powered wirelessly, there is no need for a battery.

Versatility and Functionality: Beyond Text, Visuals and Subtitles
Moreover, the display can show not only textual information but also images. One potential use is translating spoken words and displaying them as subtitles while also integrating map information with real-time scenery.

The project leader indicated that the basic technology development has been completed, and the team is now advancing toward the development of production technologies. The goal is to partner with device manufacturers to commercialize the product in the future.
Mojo Vision’s Groundbreaking Micro LED AR Contact Lenses
In fact, as early as 2021, AR developer Mojo Vision attempted to embed a Micro-LED screen into contact lenses, calling it MojoLens. The core component of MojoLens is a 0.48mm, 14,000 PPI single-green Micro-LED micro-display placed at the wearer’s pupil. The light is concentrated onto the central fovea of the retina using retinal projection technology. This small area in the center of the retina receives about 50% of the brain’s visual information. As a result, the Micro-LED display used in MojoLens does not require high brightness, making it energy-efficient. According to official reports from Mojo Vision, the Micro-LED AR contact lens was successfully tested in July 2022.
Strategic Partnership: JBD and Xpanceo Collaborate on AR Lenses
In October this year, JBD announced a strategic partnership with Xpanceo to jointly develop the next generation of AR smart contact lenses. The collaboration aims to integrate JBD’s Micro-LED display panels into Xpanceo’s smart contact lenses.
Currently, the teams are exploring two potential approaches to achieve this integration: combining projectors and holograms or incorporating a micro-display directly into the lens. The latter approach involves embedding a small screen directly into the contact lens with a custom-designed collimator system to guide the image as a parallel beam, allowing the user’s eyes to focus effectively. Using JBD’s display technology, Xpanceo has created a working prototype with a total lens thickness of under 0.5mm.
A Revolutionary Step Forward in AR Contact Lenses
The idea of embedding Micro-LED technology into AR contact lenses represents a groundbreaking innovation that has garnered significant attention in the industry. With the inherent advantages of Micro-LED technology, such as self-emission, high resolution, and low power consumption, its combination with AR contact lenses is expected to drive advancements in various sectors, including consumer electronics, healthcare, and industry.
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