 IEEE has an article from Synaptics, who are working on a piezoelectric transducer. You can touch the display and get the haptics from that transducer and sound can come through that transducer and emanate from the screen. The transducer is one millimeter thick. You also get the benefit of eliminating speaker holes. You don't need the holes because it's vibrating the screen, so you're not going to be allowing dirt and moisture in as easily. Synaptics says the technology is going to arrive in phones, laptops and wearables by the end of this year. I'm really looking forward to it. I'm really hoping that like we see this in foldables because one of the issues with foldables right now is their thickness. So maybe this will help with like making foldable smartphones a little bit thinner. You can fill that space with battery and other models so you could increase battery life even more than just the energy efficiency. Not to mention just the coolness of of being able to say, oh, no, that sound might that sound is definitely coming from the thing I'm looking at.