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The world's foldable phone was born

2018-11-09 14:40 View:
The world's first foldable phone has been born
     
         The 7.8-inch fully flexible display touch screen, which is only four inches after folding, is very convenient to carry. And the screen is very thin and thin, the body thickness is only 7.8 mm. The official person in charge said that the screen has undergone 200,000 bending tests, and there is no need to worry about quality. The configuration of the machine is also very good, using the self-developed soft charge fast charge, the fastest half an hour can be filled with 70% power, the battery life problem does not have to worry. Supports 5G network format with a new generation of Qualcomm 8 series processors.

 So how is the flexible touch screen shaped? Here is a summary of the flexible touch aspect.
 
      In terms of touch, ITO (tin indium oxide) transparent conductive film has become the most important touch screen for non-curved LCD and OLED display screens due to many reasons such as good light transmittance, low thickness, excellent hardness and conductivity, and mature production process. Layer material. However, since ITO itself is a brittle material, it is not suitable for a flexible touch layer with large curvature or even bending at will, and the cost and cost are high. At present, it accounts for about 30%-40 of the upstream material of the entire touch screen industry. The cost of %, and the use of "indium", a rare metal with limited reserves, has been replaced by the advent of the surface and the flexible era.
 
      At present, the most important substitutes for ITO materials are: nanographene, carbon nanotubes, silver nanowires and metal grids. Among them, nanographene and carbon nanotubes are very good substitutes for ITO from the characteristics of the material itself. However, graphene is still in the research and development stage, and there is still some distance from mass production. The industrialized mass production technology of carbon nanotubes has not been perfected, and the film products produced by them are not as conductive as ITO. Therefore, from the perspective of technology and marketization, metal grid and nano-silver technology will be the protagonists in recent years. Among them, metal grid technology has been applied in some PC display markets.



 
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