Displays

Researchers at ITMO University, Alferov University and Harbin Engineering University have developed a new method for directly and accurately measuring the mechanical durability of individual halide perovskite nanoparticles, a property that is central to perovskite-based flexible electronics such as foldable displays, pressure sensors, and solar cells but has been difficult to measure reliably at the nanoscale.

Perovskite nanoparticles are attractive for flexible devices because they absorb and emit light efficiently, but they remain mechanically fragile: repeated bending or compression causes microcracks to accumulate, eventually causing devices to fail. Assessing how well a nanoparticle will hold up under real-world flexing requires measuring its Young's modulus, a quantity describing how strongly a material resists deformation, where a lower modulus generally means better suitability for foldable applications. Conventional methods measure this property with indentors, hard tips pressed into a sample, but even the smallest indentors are far larger than a single nanoparticle, making it effectively impossible to apply controlled, direct pressure to one nanocrystal with standard equipment.

This is a sponsored article, written by Dr. Simon Ogier, LinkZill

Introduction

Recent industrial and academic research has produced many optoelectronic materials with improved properties. Perovskite, quantum dot, and 2D materials have enhanced the range of existing organic and inorganic materials suitable for light-emitting diode (LED) or photodetector (PD) applications. Researchers with access to conventional laboratory equipment can produce working demonstrations of individual diodes to characterise properties related to electro-optical performance and therefore select suitable applications where the new materials could be employed. Moving beyond this toward productization for practical applications brings with it a number of challenges, since the use case for the consumer world requires a much more polished demonstration, closer to existing industry standards and quality. The decision by funders to invest further financing into R&D for novel materials is often influenced by a functional prototype incorporating those materials in a display or imaging device. The increase in complexity required to go from single pixels to high-yield arrays with 100,000s of pixels extends far beyond the capability of the equipment sets available to the team that made the material innovation.

A joint team from Seoul National University, led by Prof. Lee Tae-woo, and the University of Cambridge, led by Prof. Samuel Stranks, has demonstrated a new thermodynamically guided vacuum-deposition process for perovskite light-emitting diodes (PeLEDs), aimed at next-generation display applications. 

Patterns and array perovskite light-emitting devices on a 7 cm by 7 cm large-area substrate. Image credit: Seoul National University College of Engineering

Vapor deposition is attractive for industry because it is compatible with existing OLED infrastructure and scalable to large areas, but conventional perovskite vapor growth has been limited by kinetically driven crystallization, which produces mixed-dimensional phases, nanoscale heterogeneity, broadened energy landscapes and ultimately lower device efficiencies. 

SND Display has announced that its “Vision Foundry” project has been selected as a first-phase preliminary research project under the Korean Ministry of SMEs and Startups’ “2026 Deep Tech Challenge Project (DCP) Ecosystem Innovation Model”. The selection will enable the consortium to further define its technological roadmap, commercialization strategy, and ecosystem-building plans as it targets the next-generation display market, with a strong focus on perovskite-based microdisplays.

The Vision Foundry project is led by SND Display, with Professor Lee Taewoo of Seoul National University serving as the consortium head. Participating members include small and medium-sized companies such as Aurum Material, Toprun Material Solution, and Alpha Plus, together with researchers from Seoul National University, Korea University, and KAIST. In addition, Samsung Display is involved in the project, establishing an industry–academia–research collaboration framework around perovskite display technology.

Sunic System has announced that it will develop deposition equipment for perovskite-based displays, expanding its perovskite equipment business from solar cells into display applications. The company announced that it signed a memorandum of understanding (MOU) with SND Display for the commercialization of next-generation perovskite displays.

The partnership will focus on deposition technologies needed to apply perovskite materials to existing display manufacturing processes. The two companies plan to jointly develop deposition processes and equipment structures optimized for the material characteristics, as well as deposition precursor materials. The collaboration also includes joint technology testing, prototype verification, equipment and process cooperation for mass production, and research aimed at improving deposition uniformity and fine-patterning performance.

Zhenyao Technology, a China-based global provider of e-paper application solutions, recently launched a 31.5-inch full-color e-paper display advertising screen equipped with perovskite photovoltaic cells by Yanhe Solar. 

The product reportedly achieves completely passive operation for the first time in commercial-grade e-paper display devices, requiring no external power supply or replacement of the built-in battery, and can operate continuously using only ambient light. 

A Kookmin University team has been selected for a government-backed nanomaterials technology development program focused on next-generation display materials. The project, supported by South Korea’s Ministry of Science and ICT and the National Research Foundation, brings together a multidisciplinary team to advance metal-halide color conversion materials.

The initiative centers on developing ultrathin perovskite-based color conversion layers for AR/VR and metaverse displays. The team will leverage AI-driven inverse design, combined with a closed-loop high-throughput screening platform, to accelerate materials discovery and optimization.

Perovskite-Info is happy to announce an update to our Perovskite for the Display Industry Market Report. This market report, brought to you by the world's leading perovskite and OLED industry experts, is a comprehensive guide to next-generation perovskite-based solutions for the display industry that enable efficient, low cost and high-quality display devices. The report is now updated to May 2026, with all the latest commercial and research activities.

Reading this report, you'll learn all about:

• Perovskite materials and their properties
• Perovskite applications in the display industry
• Perovskite QDs for color conversion
• Prominent perovskite display related research activities

The report also provides a list of perovskite display companies, datasheets and brochures of pQD film solutions, an introduction to perovskite materials and processes, an introduction to emerging display technologies and more.

Researchers from Shaanxi University of Science & Technology, Henan Academy of Sciences and North China Electric Power University have developed a dual-active-site ligand strategy to address one of the most persistent challenges in mixed-halide perovskite nanocrystal LEDs: halide ion migration and the resulting spectral instability.

Mixed Br/I CsPbI₃₋ₓBrₓ nanocrystals are widely considered the most viable route to achieving pure-red emission in the 620-650 nm range required by the Rec. 2020 display standard (CIE coordinates ~0.708, 0.292). However, under an applied electric field, mobile halide ions (Br⁻ and I⁻) readily migrate through vacancy-mediated hopping pathways. This leads to phase segregation into bromide-rich and iodide-rich domains, causing irreversible spectral shifts, efficiency loss, and device degradation. While external quantum efficiencies (EQEs) of pure-red perovskite LEDs have exceeded 20% in recent years, operational spectral stability remains a key bottleneck.

Researchers from Zhejiang University and Wenzhou University have developed a new strategy to reconcile high luminance and high photoluminescence quantum yield (PLQY) in perovskite nanocrystal (PNC)‑based glass composites - a key challenge hindering commercial application of next‑generation display technologies. 

By introducing fluoride ions through NaF doping, the team successfully modified the glass network to optimize crystallization behavior of all‑inorganic CsPbX₃ (X = Cl, Br, I) PNCs, achieving both full‑spectrum emission and superior optical performance. The fluoride ions depolymerize the originally compact three‑dimensional glass network, lowering the glass transition temperature and creating a favorable micro‑environment for PNC nucleation and growth. This structural modification enables precise control of crystallization and minimizes self‑absorption, resulting in high‑quality nanocrystals uniformly embedded within the transparent matrix.