One display for everything: touchscreen, solar cell, fingerprint sensor, heart rate monitor

[Redaktion]

QLED, OLED, now PeLED. The new pixels do not promise better picture quality, but an all-round solution for smart and mobile devices. The functional principle is surprisingly simple, but makes numerous sensors superfluous.

https://www.notebookcheck.net/One-display-for-everything-touchscreen-solar-cell-fingerprint-sensor-heart-rate-monitor.833520.0.html

[vertigo]

Finally, perpetual motion (or in this case, energy), will be achieved! The light the display produces can keep it powered.

Seriously, though, I wonder how well the touch functionality would work. It seems like a shadow could be interpreted as a tap. And for it to work as a heart rate monitor on a watch, it would have to be on the underside, against the skin, at which point is it really a feasible replacement for a standard sensor? Definitely sounds interesting, too bad it'll probably be 15-20 years, if ever, before it's used.

[Fierce.XT]

perovskite suffer rapid degradation on exposure to light, no one has been able to fix this

[A]

perovskite suffer rapid degradation on exposure to light, no one has been able to fix this

They have to some extent, look up the recent progress on perovskite-silicon tandem cells with mass production starting this year