Samsung Develops a 'Stretchable Electronic Skin' OLED Display

From PC Mag: Samsung may be at the forefront of folding and sliding display technology, but the company's researchers have also working on displays that can be stretched (even as far back as 2017), and we're beginning to see working prototypes.

This week, Samsung revealed a stretchable OLED display that acts as a heart rate sensor. The wrist-mounted device combines photoplethysmography (PPG) heart rate sensors and an OLED screen to offer real-time heartbeat monitoring. The research team was able to stretch the device (30% elongation) 1,000 times without causing any damage while at the same time recording a heartbeat signal pick up that's "2.4 times stronger than would be picked up by a fixed silicon sensor,"

The stretchable device, which Samsung refers to as "Stretchable Electronic Skin" form factor, was developed at the Samsung Advanced Institute of Technology (SAIT) in the Organic Material Lab by principal researcher Jong Won Chung, principal researcher Youngjun Yun, and staff researcher Yeongjun Lee.

"The strength of this technology is that it allows you to measure your biometric data for a longer period without having to remove the solution when you sleep or exercise, since the patch feels like part of your skin. You can also check your biometric data right away on the screen without having to transfer it to an external device," explained Yun. "The technology can also be expanded to use in wearable healthcare products for adults, children and infants, as well as patients with certain diseases."

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