Tsubota Laboratory, a pharmaceutical and medical company based in Tokyo, Japan, presents its technology for delivering beneficial violet light through displays. The company has developed a glasses-type transparent display that emits violet light in the 385 to 390 nanometer wavelength range. This specific wavelength is intended to help prevent the progression of myopia, particularly in children. The technology is based on clinical trials in Japan that have demonstrated the efficacy and safety of this approach.
—
HDMI® Technology is the foundation for the worldwide ecosystem of HDMI-connected devices; integrated with displays, set-top boxes, laptops, audio video receivers and other product types. Because of this global usage, manufacturers, resellers, integrators and consumers must be assured that their HDMI® products work seamlessly together and deliver the best possible performance by sourcing products from licensed HDMI Adopters or authorized resellers. For HDMI Cables, consumers can look for the official HDMI® Cable Certification Labels on packaging. Innovation continues with the latest HDMI 2.2 Specification that supports higher 96Gbps bandwidth and next-gen HDMI Fixed Rate Link technology to provide optimal audio and video for a wide range of device applications. Higher resolutions and refresh rates are supported, including up to 12K@120 and 16K@60. Additionally, more high-quality options are supported, including uncompressed full chroma formats such as 8K@60/4:4:4 and 4K@240/4:4:4 at 10-bit and 12-bit color.
—
The core concept addresses the lack of violet light in modern indoor environments, which contrasts with the natural violet light available from sunlight outdoors. Tsubota Laboratory’s initial product is a medical device, the “eye-grace frame,” which requires a physician’s prescription and is worn for three hours a day for one year to manage myopia progression. The emitted light is not visible to the user, ensuring it does not interfere with their vision or activities.
At Display Week, the company showcased a new application of this technology as a consumer product: a transparent film or display layer designed to be placed in front of tablets and other screens. This allows children and other users to receive supplemental violet light while learning or watching videos, activities often associated with eye strain. The goal is to add a health benefit, similar to a vitamin, without altering the viewing experience of the original screen content.
This violet light works by activating OPN5 (opsin-5), a non-visual photoreceptor in the eye that helps regulate blood flow in the retina. To ensure safety and efficacy, the system incorporates eye-tracking technology. This feature measures the distance of the user’s eyes from the screen and automatically adjusts the intensity of the violet light, dimming it as the user gets closer to prevent overexposure.
Beyond myopia, the company notes that this essential light is involved in regulating circadian rhythms. The lack of it in modern lighting contributes to what they term a “junk light environment.” Researchers are exploring the potential of this violet light technology for other conditions, such as mood and sleep disorders, aiming to reintroduce healthy light into daily life through common digital devices.
