New OLED screen with a speaker in every pixel promises sound just as accurately as OLED’s contrast
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- Every OLED pixel can also be a sound source
- No need for conventional speakers and no thickness of thickness
- Can be used for displays, smartphones and headsets in the car
For years, the TV industry has been thinking of pixels: how to make them brighter, how to make them smaller, how they can put them together in the best possible way. And now there is a new push: how they can make them sound.
As spotted by Science dailyResearchers at Pohang University of Science and Technology (simply postech) have created a 13-inch OLED Panel where each pixel makes both sound and light.
And in a day, that technology could supply multi-channel sound with incredible precision-without speaking drivers.
Pixels must be heard and seen both
As Science Daily reports (hat tip Notebook check), The team has called their invention ‘Pixel-based Local Sound OLED technology’. And as they explain, the problem with TV audio is that it is really difficult to get a precise positional sound with conventional speakers.
“The core problem is that traditional exciters – devices vibrate to produce sound – are large and heavy, making it difficult to use multiple units without endangering the thin design of the OLED,” the researchers say. “Moreover, noise transferey between multiple speakers leads to a lack of precise control over localized audio.”
Their solution was to bed in the OLED display frame in the OLED display frame. “These piezo exciters, arranged in the same way as pixels, put electrical signals into sound vibrations without taking external space. They are crucial completely compatible with the thin form factor of OLED panels.”
That enables each pixel to become an independent sound source, and the team says that they are able to eliminate overall – so that sounds from different parts of the display did not interfere each other.
The applications of technology go beyond TVs. A suggestion is that displays in the car can send different audio to different people, for example by giving vocal instructions to the driver while the passenger listens to music. And in telephones or headsets the audio can change when the head, hand or the device moves.
According to Professor Su Seok Choi: “This technology has the potential to become a core function of next generation devices, which means that tight, lightweight designs in smartphones, laptops and automotive displays are possible while I supply compelling, high-fidelity audio.”
However, the “has the potential” bit is crucial: this is a proof of concept, not a product – and there is a big difference between producing audio and production excellent Audio. And of course what can work in a 13-inch prototype, it turns out to be much more difficult to reach in panels of larger sizes.
There is also the issue of costs – so although the announcement is absolutely exciting, I think Best Soundbars Can breathe easily for a few years.
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