Hong Kong — At the 44th International Exhibition of Inventions of Geneva held in Switzerland from April 13-17, 2016, the ultra-hard anti-scratch cover for touch screen devices invented by the team led by Professor Cheah Kok-wai, chair professor of physics, Hong Kong Baptist University (HKBU), won the top prize of the event – the Grand Prix Award (also named the International Invention Award). This invention also received the Gold Medal in the Industrial Processes Category and the Special Award For The Invention.
ArmoGlass®, a new material invented at HKBU, is a layer of nano-materials that have ultra-hard and anti-scratch properties and can be deposited onto a transparent substrate, ideal for use on touch screen devices. Its hardness is proved to be comparable to the hardness of single crystal sapphire, which although hard is fragile.
Compared with the existing less durable and easily scratched glass cover on mobile devices, this non-fragile thin substrate can be applied to screens providing excellent scratch protection. Its manufacturing cost is approximately half that of sapphire covered glass.
Professor Cheah added that the fabricated layer can be deposited onto various types of substrate including quartz, fused silica and silicon. The fabrication process can be completed using standard industrial deposition processes; therefore production can be scaled up with minimal development time.
At this year’s exhibition, which attracted 1,000 entries from 40 countries, two other inventions by HKBU scholars also claimed awards. The autologous neural stem cell harvest technologies developed by the team led by Professor Ken Yung of Biology won the Gold Medal in the Surgery Category and the Award for High Scientific and Technological Level of the Invention. In addition, the novel patented laser technology for artwork and antique authentication invented by the team led by Professor Cheung Nai-ho of Physics won the Gold Medal in Computer Sciences Category.