We often talk about Curved OLEDs like what we saw in Xiaomi's quad-curved prototype. In the same way we talk about smartphones with a folding or extendable display, such as for example Oppo. But if we told you that it is possible (and has been done) to create a fully extendable display? And not like that of Oppo's futuristic smartphone, but extendable like rubber. It was made in Korea at the Yonsei university. Let's see all the details of this revolutionary discovery together.
In Korea, a particular OLED glass (hard to call it glass) has been developed that stretches in all directions. The goal is to put it on smartphones
According to reports from iNews24 (via OLED-info) a team of Korean researchers at the Yonsei university they created what we can call the display of the future. Other than folding or rollable glass, this one is just as extendable as rubber. The peculiarity of this type of display is that it is extendable in all directions: we take a square and pull all sides and corners in one direction. Unlike existing flexible displays that have been made by placing rigid OLEDs on more elastic "substrates", this material is completely deformable.
Elastic components use materials such as silicon rubber, silver nanowires e newly developed OLED stack. All have been applied to the “substrate” (as it is called) to add its elastic properties. According to the participants in the project, the performance OLEDs remained at a good level even after 200 stretching cycles. Elasticity only decreased by 40% after cycles. It is reported that elongations of greater magnitude (100 micrometers) did not report too much damage to the surface.
The really interesting thing is that even the LED placed under the glass (if it can be called that) they are resistant to stretching and deformation. The researchers were able to produce LEDs in three primary colors, so the described technology is suitable for smartphone displays as well as for TVs and tablets. Now the institute's specialists are working to bring development closer to marketing.
At the moment we cannot understand which ones uses could have such a display on a smartphone. Are we talking about technological avant-garde? Very distant future perhaps.
