Samsung’s Upcoming Galaxy Z Flip Foldable Smartphone Might Feature A Display With Built-In Speaker

The display in development will reportedly utilise piezoelectric technology to generate sound by vibrating the screen, potentially replacing the ear speaker typically placed behind hole-punch displays

This piezoelectric speaker will be integrated within the display layers, eliminating the need for additional hardware.

Source : Samsung

The upcoming Samsung Z Flip clamshell-style foldable smartphone might feature a different kind of ear speaker that will help users answer calls without compromising on their privacy even when the smartphone is folded. At the moment, users can only answer calls on the Samsung Galaxy Z Flip 6 by using the phone's speaker when they flip open the phone, which does not let the conversation be private. According to reports, Samsung and LG are working on a new solution that will overcome this shortcoming and help in creating more space for other smartphone components. 

A recent report from Korean news outlet Sisa Journal suggests that Samsung is collaborating with LG to develop a new type of display that could eliminate the traditional ear speaker found in most smartphones. This innovation is primarily targeted at foldable devices, particularly clamshell-style models, which currently need to be fully opened for users to take calls privately.

How Will This Happen?

The display in development will reportedly utilise piezoelectric technology to generate sound by vibrating the screen, potentially replacing the ear speaker typically placed behind hole-punch displays. According to the report, this piezoelectric speaker will be integrated within the display layers, eliminating the need for additional hardware. By fusing the speaker and display, it could free up valuable space for other components, addressing the tight space constraints in clamshell foldable smartphones.

Researchers highlight that by integrating this speaker technology into the cover display, users can experience two separate audio sources, enabling them to place their ear on the cover display and answer calls privately for the first time.

While piezoelectric technology itself isn’t new, Xiaomi was the first to incorporate it in a production smartphone with the Mi Mix in 2016. This device, which was only available in China, featured a piezoelectric acoustic ceramic speaker and used an ultrasonic proximity sensor instead of the standard infrared sensor, aiming to create a nearly bezel-less display at the top. 

Interestingly, the Mi Mix placed its selfie camera in a thicker bezel at the bottom of the phone to enhance the distraction-free viewing experience on the upper part of the screen. The phone also boasted a ceramic rear panel. However, when the Mi Mix 2 was launched in India, it did not carry forward this innovative speaker technology, opting instead for a more conventional audio setup.