LG Display showed a new 97-inch OLED EX TV panel (advanced technology, 30% brighter than traditional OLED), the first in the Cinematic Sound OLED (CSO) series. According to the manufacturer, it generates sound by the vibration of the panel itself, without separate speakers.
As the representative of LG Display declares, “the display has a built-in 5.1 sound system, which provides a cinematic level of immersion in what is happening on the screen.”
Most likely, a TV with this technology must use some kind of virtual surround sound system — a true surround sound system still requires physical sound sources around the viewer.
It should be noted that Sony has been using similar Acoustic Surface technology in its OLED TVs since 2017. They also create sound by vibrating the screen and do not have additional speakers. However, Sony does not compare such sound with 5.1 systems and advises owners of such TVs to connect their own speakers to the system and use the TV sound as a central speaker.