https://wccftech.com/samsungs-sound-on-display-oled-screen-technology-for-smartphones-could-debut-at-ces-2019/

Samsung never had a thing for notches, and so, in addition to adopting a punch-hole display for selfie cameras, the South Korean behemoth is apparently gearing up to showcase its Sound on Display technology to increase screen real estate without resorting to what some might believe as an unsightly cutout called the notch. The technology will reportedly be unveiled during next year’s CES trade show that will take place in Las Vegas. It was revealed earlier this year by the chaebol at its OLED Forum conference.

Here is how The Sound on Display OLED will work when used on smartphone panels. It will use bone conduction and vibration to emit sounds. This would render the earpiece speaker unnecessary and help manufacturers like Samsung increase the screen-to-body ratio of smartphones. The technology will turn the body of handsets into a diaphragm and enable the display to produce sound when a user places their ear against it. Apparently, the bottom-firing speaker would remain intact, according to the latest report.