In South Korea, we have developed OLED-displays based on graphene
South Korean research institute in the field of electronics and telecommunications on Tuesday announced that its experts managed to create a graphene transparent electrodes for OLED-displays. Sounds may not be very impressive, but in fact it is a major breakthrough for display manufacturers. Indeed, given the amazing properties of graphene, such displays are extremely thin and flexible. Flexible so that they can easily be sewn into clothing or embedded in a different wearable electronics.
Graphene has an excellent combination of outstanding properties. He is both lightweight and durable, and flexible, as well as the great conductor of heat and electricity. Hundreds of research groups around the world are constantly finding new applications of this material. But in South Korea we decided that would be a good idea in using graphene to improve the existing OLED technology. And Korean scientists succeeded. They completely replaced from indium-tin oxide electrodes (ITO) on their analogs formed from graphene.
The whole essence of innovation lies in the fact that ITO is very fragile, and graphene can be bent arbitrarily strongly, while it will be nothing. Technology already tested on an experimental display of 370 by 470 mm (the largest to date display, created by this technology). The thickness of the graphene electrode is not more than 5 nanometers. Korean researchers have also developed a special technique of laying transparent graphene electrodes on the OLED-substrates.
"What we have created is incredibly important for the production of flexible OLED-displays. This technology will allow even more to increase the gap between Korea and China, where he also conducted similar studies, "- he told reporters the head of Cho Nam Sun project.
Team Cho Nam Sun beginning of research in this area just four years ago. In 2015, a tiny graphene OLED-display size of a coin has been created. In 2016 we managed to increase its size tenfold. As you can see, since the technology has leaped forward. But researchers have achieved not intend to stop. Already next year we promise to also show a clear plastic OLED-electrodes, and the first fully collapsible displays suitable for use in the home.