Programmable Magnetic Fluid Display FerroScreen Launches: Zero-Power Display That Retains Images Without Electricity
KAIST spinoff FerroDisplay launches FerroScreen magnetic ferrofluid display technology, using magnetic fields to control ferrofluid droplet arrangements as pixels, with images permanently retained after power loss.
Korea Advanced Institute of Science and Technology spinoff FerroDisplay today launched a fundamentally new display technology called FerroScreen. Unlike LCD, OLED, or e-ink, FerroScreen uses tiny ferrofluid droplets as pixels — controlled by precisely calibrated magnetic field arrays, each droplet can be moved to a specific position and locked in place, forming visible images.
FerroScreen's core advantage is its bistable characteristic: once an image is formed, it can be permanently retained without any power. Power is only needed briefly when refreshing the image. For static content displays (electronic price tags, bus stop signs, building facade advertising), FerroScreen's average annual energy consumption approaches zero.
FerroScreen achieves 200 pixels per inch resolution, supporting monochrome and 8-level grayscale. A color version using stacked RGB ferrofluid layers is expected to mass-produce in 2030. FerroDisplay has completed a $12 million Series A round.
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