KAIST Team Achieved One-time Transfer with Flexible Blue Vertical Micro LED

Researchers from KAIST published their research on developing a one-step method to transfer thousands of thin-film blue vertical micro LEDs (thickness < 2 μm) on a transparent plastic substrate.

(Image: KAIST)

Earlier this year, the Korean research team revealed its development of flexible red vertical Micro LED (f-VLEDs). Comparing to flexible lateral Micro LED, f-VLEDs achieved three times higher optical power density (30 mW/mm2) and a lifetime of 100,000 hours (approximately 12 years) by reducing heat generation. With the most updated investigation, researchers demonstrated ultrathin vertical GaN LED arrays with one-time transfer method; the technology may lead to low cost production of Micro LED.

The blue GaN f-VLEDs could be attached to curved surfaces like skin or even brain stably without mechanical deformation and be driven by wirelessly transferred electrical power. Researchers has practice the experiment to insert the high-density GaN f-VLED onto a living mouse cortex and the operation did not cause significant brain damage.


(Image: KAIST)

The KAIST team expects to utilize the technology on wearable devices and plans to demonstrate a full-color Micro LED display in smart watch sizes by the end of 2018.

The research led by Han Eol Lee, “Monolithic Flexible Vertical GaN Light‐Emitting Diodes for a Transparent Wireless Brain Optical Stimulator” was published in the June 2018 issue of Advanced Materials.

Disclaimers of Warranties
1. The website does not warrant the following:
1.1 The services from the website meets your requirement;
1.2 The accuracy, completeness, or timeliness of the service;
1.3 The accuracy, reliability of conclusions drawn from using the service;
1.4 The accuracy, completeness, or timeliness, or security of any information that you download from the website
2. The services provided by the website is intended for your reference only. The website shall be not be responsible for investment decisions, damages, or other losses resulting from use of the website or the information contained therein<
Proprietary Rights
You may not reproduce, modify, create derivative works from, display, perform, publish, distribute, disseminate, broadcast or circulate to any third party, any materials contained on the services without the express prior written consent of the website or its legal owner.

A Breakthrough in Combating Water, Surface and Airborne Pathogens. Crystal IS, a subsidiary of Asahi Kasei, has launched Klaran LA®—the newest addition to its industry-leading Germicidal UVC LED product line. Klaran LA® represent... READ MORE

Thanks to the special batwing optics, greenhouse owner can enlarge the distance between the single lamps without a decrease in light quality for the plants.   - Oslon Square Batwing extends ams OSRAMs comprehensive and market-leading port... READ MORE