The beauty of flexibility is everywhere. The development of flexible screens can be applied to all walks of life, make life more concise and convenient. Here are some nano materials that can be used for flexible screens:
ITO (tin oxidation) transparent conductive film has become the most important touch layer material for display screens such as non -curved LCD and OLED due to many reasons such as good light transmission, low thickness, excellent hardness and electrical conductivity, and mature production process. However, ITO is a kind of crispy material, not suitable for the flexible touch layer that can be curved or even bent at will, and the cost is high.
Nano graphene, carbon nanotubes, silver nanowires, etc.
At present, the main substitutes for ITO materials are: nano graphene, carbon nanotubes, silver nano wires, and metal grids. Among them, nano graphene and carbon nanotubes are very good substitutes for ITO in terms of material itself. But graphene is still a bit far from mass production. The film made of nano -carbon tube is not as good as ITO in conductivity. Therefore, from the perspective of technology and market, metal grids and nano -silver technology will be the protagonist of recent development.
The metal grid technology mentioned here is the conductive metal mesh formed by using metal conductive materials such as silver and copper or oxides on PET and other thin film substrates. Its main advantage is that the cost of raw materials is low and good for winding. However, due to the problem of Morri interference ripples caused by good rate, yield and high -end high pixels, it is more suitable for applications with low resolution and relatively long -distance use. Desktop all -in -one machines, laptops and television products.
Nano -silver wire technology refers to applying nano -silver wire ink materials to PET or glass substrates, and then uses Laser lithography technology to portray the nano -level conductive network. Its main advantages are high rates, small line width, good conductivity and resistance, and disadvantages are high costs. And compared to metal grids, nano -silver materials have a small curvature radius, and the resistance changing rate of resistance during bending is small, plus the reasons for the width, so it is more suitable for high -resolution such as mobile phones, smart watches and bracelets. Use in close range scenes.