The way forward for TV tech is just a single OLED pixel large

Researchers on the Pohang College of Science and Expertise (POSTECH) in Pohang, South Korea have unveiled a prototypical OLED show with a probably game-changing twist: the novel 13-inch panel is able to emitting not solely visuals, but in addition full-blown audio.

In a analysis article titled Localized Sound-Built-in Show Speaker Utilizing Crosstalk-Free Piezoelectric Vibration Array, published in Advanced Science again in April 2025 (via ScienceDaily), Inpyo Hong and Su Seok Choi define a display that may primarily convert electrical indicators into full-blown sound vibrations utilizing piezoelectric expertise.

“Piezoelectric speakers straight convert electrical power into mechanical movement through the inverse piezoelectric impact, enabling environment friendly sound era with a light-weight, versatile, and low-power design. Their easy layered development, consisting of electrodes and piezoelectric supplies, gives benefits reminiscent of low value, excessive power effectivity, and compactness,” write Hong and Choi.

What’s Pixel-Based mostly Native Sound OLED expertise?

A conceptual multi-channel sound system the place every pixel emits its personal audio

Dubbed Pixel-Based mostly Native Sound OLED expertise by the POSTECH researchers, a central innovation employed on this idea is the embedding of Piezoelectric exciters straight into the body of the 13-inch OLED panel in query. This circumvents the necessity for conventional audio exciters, which take up a considerable quantity of bodily area to provide sound by way of their driver ingredient and different required speaker internals.

Piezoelectric tech itself is not new — we have seen shopper electronics manufacturers experiment with it prior to now, reminiscent of with the Google Pixel 5’s grill-less front-facing speaker hidden behind its show. This all-new implementation of Pixel-Based mostly Native Sound OLED tech is distinct, nonetheless, with its pixel-like association and embedding straight into the OLED panel {hardware} itself. The tip result’s an OLED display association that may produce audio at a per-pixel degree, very like how every particular person OLED pixel can already emit its personal gentle.

Based on Hong and Choi, these piezoelectric exciters may be demonstrably built-in into the body of an OLED show with out considerably impacting the form and dimension of the panel itself, all whereas eliminating crosstalk (sound supply leakage) and bolstering acoustic precision, positionality, and localization.

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Is Pixel-Based mostly Native Sound OLED expertise the way forward for TV?

Value, manufacturing, scaling, and high quality are all obstacles that must be labored by way of

Conceptually, Pixel-Based mostly Native Sound OLED expertise is an thrilling prospect. OLED panels are already thought of best-in-class for his or her skinny and versatile design, their per-pixel management of sunshine emission, and their deep blacks and punchy distinction ranges. The addition of pixel-perfect audio emission has the potential to bolster the coveted ‘ 3D spatial audio‘ or encompass sound impact that some shopper manufacturers try to realize, whereas additionally obsoleting cumbersome speaker {hardware} within the course of.

“This expertise has the potential to turn out to be a core function of next-generation units, enabling modern, light-weight designs in smartphones, laptops, and automotive shows – whereas delivering immersive, high-fidelity audio,” writes Hong and Choi within the analysis paper.

In fact, the findings of Hong and Choi are experimental and function a proof of idea — Pixel-Based mostly Native Sound is not a consumer-ready expertise that may be churned out on a manufacturing line, and it doubtless will not be for the foreseeable future. In an effort to obtain the dimensions obligatory for mass industrial manufacturing, audio efficiency must obtain cost-to-performance parity with present shopper audio units, and probably different hurdles will must be conquered.

There’s additionally no telling whether or not this tech will scale nicely to larger-screened and smaller-screened units, or whether or not piezoelectric exciters will finally be capable to obtain the audio outcomes shoppers count on out of their TVs, smartphones, and different tech devices (present implementations of piezoelectric tech, reminiscent of on the aforementioned Pixel 5, have not precisely taken the world by storm).

Personally, I am hopeful of a future through which Pixel-Based mostly Native Sound not solely hits the buyer area, but in addition achieves crucial mass. Audio directionality and spacial contextualization can significantly elevate the expertise of consuming media, and that is double true in relation to augmented actuality (AR) and digital actuality (VR) headsets. If cumbersome traditional speaker hardware have been to at some point turn out to be antiquated, it’d additionally open up the door for even thinner tech merchandise throughout the board, which is an thrilling prospect certainly.

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