Scientists develop flexible ultra-clear flex screens

"TechWeb Report" flexible screen is the focus of attention, because it is likely to become a necessary material for future mobile devices, now LG and Samsung two South Korean companies have started to follow this technology and launched the corresponding products. According to the report, foreign scientists have developed a new type of screen that not only features a flexible screen, but also supports super clear image display with low power consumption and fast response. Scientists describe a new technology that may be the first step toward producing the first ultra-thin, ultra-high-speed, low-power, high-definition, and foldable color display. According to scientists studying the project, it is really exciting that the phase change materials, which are so widely used in the field of optics and long-term storage materials, can find a new potential application area in the display technology. The new display technology is still dominated by traditional materials, including some data-storage materials that are now widely used on CDs and DVDs, a key feature of which is that they can exist in two states. Under the action of light, heat or electrons, they can transform between different states. Scientists refer to such materials as phase change materials (PCMs). The PCM display technology basically resembles the electronic paper that Amazon's Kindle reader uses. Simply put, the method is to use two-story box variable material superposition, which is lighter color, a deeper, the middle of a layer of transparent conductive layer. In electronic paper technology, the material in the inner layer is a black viscous oily liquid, the middle is covered with tiny white titanium pellets. To display the white shape, you let the current pass through a tiny area under the glass and let those balls float up the surface. And if you want to show the black pattern, you're going to pass the current in the opposite direction and let those balls fall back again. In the PCM display technique, the inner material is one of the chemical elements of silicon: germanium, antimony and tellurium. The two states of this material, the so-called GST, are in fact two different materials: one is a regular crystal and the other is a glass of irregular form. In order to achieve the conversion between the two, you need to use the pulse of the current to melt a cylinder, you can choose to make it slowly melting, so that the crystal, you can choose to cool quickly, so that the glass. This cycle can be carried out very quickly, more than 1 million times per second. This speed is a huge advantage in consumer products. Sliding the page on the Kindle can sometimes feel bad, because it refreshes only about once per second, but with a PCM-enabled display that is fast enough to support movie playback.