Graphene material applied to touch screen

The touch screen of a mobile phone can be as large as a tablet computer. When not in use, it can be folded over and put in a trouser pocket. With the advent of new graphene materials, such handsets will soon appear in life.

Dr. Shi Haofei, chief scientist of Chongqing Mesh Technology Co., Ltd. introduced that graphene is the world's thinnest, but also the most hard nano material, and its conductivity is also the best known material. Compared with the commonly used ITO materials in the touch screen of existing mobile phones, the advantage of the graphene film lies in its better light transmittance, higher definition of the screen display, and more sensitive touch positioning. It saves power over existing screens, saving more than 10%.

At the start of the ceremony, Shi Haofei showed the author a mobile phone with a graphene film to create a touch screen. The screen size was 4.5 inches. The appearance of the mobile phone was the same as that of the mobile phone in the market, but its display effect was more delicate, and the touch sliding feel was very good. It is expected that mobile phones using graphene film touch screens will be available in the market in the second half of next year at the latest.

Shi Haofei said that the graphene film is very soft and can be folded up, so it will be widely used in wearable electronic products, such as mobile phones, watches and the like that can produce a foldable screen. At present, this product has been successful in the laboratory.

According to the data, graphene has excellent physical properties: First, the world's most powerful material has been used to make a film (approximately 100 nanometers) in thickness equivalent to ordinary food plastic bags, and can withstand pressures of about 2 tons. , Can be used to manufacture ultra-light armor, ultra-thin ultra-light aircraft and so on. Second, the best conductive materials will fully replace silicon in touch screens, displays, and chips. Third, with high-speed charge and discharge performance, can reduce the charging time from the past few hours to less than 1 minute, is expected to fully replace the current mobile phone, computer batteries, or even pure electric car batteries, led a revolution in storage power. At present, China's graphene industry is in the stage of mass production.