Researchers at Soiboi Soft have unveiled a novel display technology using silicone dots that move via vacuum pressure to form images. The prototype, demonstrated in August 2026, features an eight-by-eight grid where individual pixels rise and fall without electricity, light emission, or traditional screen components. This approach creates tactile, shape-shifting patterns through purely mechanical means.
The device operates by manipulating air pressure beneath a flexible silicone membrane. When vacuum is applied to specific points, the material deforms upward, creating visible bumps that represent pixels. Releasing the pressure allows the dots to return to their flat state. This binary up-or-down motion enables the formation of basic shapes, letters, and simple animations across the 64-pixel array. Unlike conventional displays, it requires no backlight, semiconductors, or liquid crystals, relying solely on pneumatic actuation.
The core innovation lies in the precise control of negative pressure within microchannels beneath the silicone layer. Each pixel corresponds to a sealed chamber connected to a miniature pump system. By evacuating air from a chamber, atmospheric pressure pushes the silicone upward, creating a raised dot approximately one millimeter high. The speed of movement depends on the rate of air removal, with transitions taking roughly 200 milliseconds. Soiboi Soft engineer Lena Park explained, „We're not generating light—we're shaping shadow and texture. The image exists as a physical relief you can see and touch.” What Applications Might This Technology Enable Beyond novelty, the technology suggests potential uses in environments where electrical components pose risks or where tactile feedback is valuable. Possible applications include safety displays in explosive atmospheres, wearable interfaces for visually impaired users, or dynamic braille systems. The current prototype operates at low resolution but demonstrates scalability principles.
Park noted that increasing pixel density would require advances in microfabrication and pressure control, though the fundamental physics remains viable at smaller scales. The team is exploring materials that could improve response time and durability for repeated cycling.
How is this different from other tactile displays? Unlike piezoelectric or motor-driven tactile screens, this system uses only vacuum pressure with no moving parts at the pixel level, potentially increasing reliability and reducing power consumption during static image display.
Can it show grayscale or only binary states? The current design supports only two states per pixel—raised or flat—limiting output to binary patterns. Intermediate pressures were tested but did not produce stable, distinguishable height levels for consistent imaging.
Is the silicone material safe for prolonged contact? The silicone used is medical-grade and biocompatible, selected for its flexibility, durability, and inertness. Long-term skin contact testing showed no irritation in preliminary trials, though extended wear studies are ongoing.