• - Samsung researchers: OLED skin patch can replace fitness bracelets

    Samsung researchers: OLED skin patch can replace fitness bracelets
    6 Days, 23 Hours ago

    Tags:  Health  -  Samsung

    One of the most important recent advances in display technology is the development of flexible display panels, which paved the way for the construction of clamshell smartphones. The Chinese company Royole introduced the first clamshell smartphone to the world with the production of the FlexPai phone, but it is undoubtedly Samsung that is one of the main contenders in the clamshell phone market. About two weeks ago, Royole announced that it had acquired the technology to build the world's first stretch display. But Samsung, which does not want to be left behind, has recently announced the design of a very thin and elastic display called a "skin patch". Samsung researchers: OLED skin patch can replace fitness bracelets

    The Samsung Advanced Technology Foundation (SAIT), recently published in the journal Science Advances, shows that the company's researchers have developed a prototype of an elastic OLED display that can be stretched and deformed like a rubber bracelet. . According to some experts, one of the most important findings of the present study is that this product, for the first time in the industry, proves the commercialization potential of elastic devices.

    This product is called "skin patch" because it is located on the bottom of the wrist and on the user's skin. According to Samsung researchers, pulling the screen up to 30% had no effect on it, and even after being pulled a thousand times, it continued to work as before. Now, the question is, with what new technology has Samsung succeeded in developing this patch? Samsung researchers: OLED skin patch can replace fitness bracelets

    As you probably know, current folding screens can not withstand such a lot of pressure. So to overcome this problem, Samsung researchers used another material called "elastomer" instead of plastic (which is used to make the current flexible displays); Advanced materials that have high elasticity and resilience. Then, in order to increase the resistance of this display to heat and also to moderate the pressure caused by elongation, they changed the molecular composition of this material to some extent. This allowed researchers to add a semiconductor device to the display.

    This piece is nothing more than a PPG sensor (optical volume meter). Thanks to this sensor, the new skin patch - which is placed under the user's wrist - can easily measure his heart rate. In this way, Samsung's new product can replace fitness bracelets. According to Samsung's research team, another elastic electrode material has been used to make the patch, which prevents the elastomeric region from deforming. According to Samsung researcher Yeongjun Lee, this allows the space as well as the electrodes between the pixels to be stretched and returned to the original state without the OLED pixels themselves being deformed.

    According to the research team, when the elastomer becomes more resistant to heat and chemicals, it will be possible to install semiconductor components and health tracking sensors in this skin patch; Just like what we see in today's wearables (like Applause). Of course, Samsung researchers go a step further and claim that by placing this product on the skin, it will be easier to adapt to hand movements. It is also possible to continuously measure your heart rate due to the increased sensitivity. The observation of the research team during the trial period of this display indicates that the movements of the user's wrist (even in spite of 30% stretch) did not have an adverse effect on its performance and even the signal received in this method (compared to the case in which the sensor does not move) It has been up to 2.4 times more powerful.

    Finally, at the moment, we are only dealing with a prototype, and the research team needs more work to commercialize it. It seems that the research team should work more on the OLED resolution, flexibility and tracking accuracy of this product and raise its performance level enough to be suitable for mass production. We expect to see similar products in the future that can do things like measure blood oxygen saturation, read nerve and muscle strips, and take blood pressure. It is unlikely that such products will be able to assist the medical staff in monitoring specific patients and infants in the future.

    Source: Samsung

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