Porotech unlocks a world first in micro-LED dynamic pixel tuning

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The long-awaited fully tuneable colour on a single pixel achieves a new industry milestone.

Porotech, a pioneer in micro-LED and GaN-based semiconductor material technology, will be unveiling DynamicPixelTuning™ on its PoroGaN microdisplay platform at the Display Week event in California next week. The breakthrough makes it possible to create full-colour or tuneable-colour displays using identical pixels from a single wafer – achieving colour uniformity while eliminating complex fabrication processes.

The innovation is set to accelerate the commercialisation of micro-LEDs, mini-LEDs and LEDs to deliver next-generation display products for AR/MR/VR applications, smart wearable devices, smart displays and large-scale direct view displays.

Porotech is the first in the world to unlock dynamic colour tuning of LED chips and pixels. Its PoroGaN platform makes it possible for each individual tiny LED on an epiwafer to emit all colours of the visible spectrum.

The PoroGaN platform also enables a one-step wafer-to-wafer bonding process – removing key manufacturing barriers for full and tuneable colour microdisplay fabrication, thereby increasing yields and reducing production costs and time to market.

The PoroGaN platform is configurable to LED epiwafers for both micro-LED and mini-LED chip processing. Other configurations include chip-on-wafer, chip-on-tape and tuneable material platforms.

“We have revolutionised GaN-based semiconductor materials and structures, which underpins our breakthrough of realising all colours on a single pixel across the full spectrum,” said Porotech CEO and co-founder Dr Tongtong Zhu. “PoroGaN’s wavelength-agnostic optoelectronic properties also simplify electronic and optoelectronic system design integration.”

Micro-LED and mini-LED display fabrication remains challenging due to the multi-phase processes currently required to manipulate elements at the micro and nano scale. “With Porotech’s porous GaN technology and scalable architectures, the PoroGaN platform significantly simplifies the mass-transfer or pick-and-place process," said Dr Zhu.