Technology

The new materials pushing the photovoltaics industry towards power conversion efficiencies, previously thought to be unachievable at industrial scale.

Instead of creating power, however, we are using the superb absorption and emission properties of perovskites for light emission, harnessing the same level of efficiency and tunability that makes these materials unique.

The power of perovskites explained

Helio Display Materials has exclusively licensed fundamental patents from Oxford and Cambridge universities covering both photoluminescent (colour conversion) and electroluminescent (LED) applications of perovskites with priority dates starting from 2012. We are now building on this portfolio with our own technological developments and materials innovations.

Helio currently has more than 60 patents (granted and pending) from 14 patent families.

Our fundamental IP position gives Helio a unique opportunity to support and promote the widest possible adoption of perovskites in displays working with our customers and partners.

Perovskite light emitters

Our technologies are based on the use of innovative new materials built around metal halide perovskites. These materials are outstanding semiconductors which can be synthesised from low-temperature solution processes using earth abundant precursor materials. We take advantage of their exceptional high light absorption coefficients and emission efficiencies, as well as their extraordinary colour tunability, for applications as light emitters.

Perovskites vs quantum dots

Recently, quantum dots have emerged as innovative phosphors for displays with ultrawide colour gamut (colour space).

While quantum dots achieve their outstanding colour properties through an accurate control of the size of the nanocrystals (within less than 1 nm), perovskites demonstrate similar performance without the need of quantum size effects and core-shell nanostructures.

Perovskites also exhibit much higher optical density than InP-based quantum dots. This allows thinner colour conversion layers driving significant performance band cost benefits.

Pioneering solutions for µDisplay applications

Helio Display Materials is at the forefront of addressing the unique challenges of µDisplay applications with cutting-edge perovskite materials. Unlike other colour conversion technologies, such as quantum dots (QDs), which falter under the intense light flux required in µDisplays (approximately 50 times that of large displays), Helio’s perovskites excel. These materials offer unmatched stability and performance, meeting stringent requirements for red and green emission.

By overcoming critical industry challenges, Helio positions itself as the leader in next-generation display innovation, driving advancements in high-performance µDisplay technology.

The advantages of perovskite colour conversion in µDisplays

High efficiency with enhanced colour gamut

Simplified manufacturing and supply chain

Improved yield, and cost

Eliminates blue filters

Photon recycling: Maximises efficiency by reusing trapped photons

Performance leadership: Outperforms µm-scale red and green µLEDs in efficiency and stability

Recent milestones

Advanced materials research

Achieved significant breakthroughs in 2024, optimising perovskites for µDisplay performance and lifetimes.

Strategic investment

Secured late-2024 funding from a leading OEM/manufacturer, enabling expanded manufacturing and supply routes across Asia.

2025 Objectives

Maturing perovskite solutions and refining scalable manufacturing processes to commercialise µDisplay-ready materials.

Innovations based on the outstanding properties of metal halide perovskites