Blue color

DSCC says that the OLED materials market will reach $2.12 billion in 2024, rising 24% over 2023. The market will continue growing at a 6% CAGR until 2028, reaching about $2.7 billion. DSCC details the revenue split between single-stack, tandem and multi-stack panels, saying that materials used in tandem OLED panels will grow at a fast rate of 30% CAGR from 2024-2028. 

The leading materials makers by revenue in 2024 will be UDC, DuPont, LG Chemical and Samsung SDI, holding a market share of 51% together. DSCC says that Chinese materials makers will increase their market share in the future. 

Researchers from the University of Manchester, University of Cambridge and University of Eastern Finland, led by Dr. Alexander Romanov have developed a new deep-blue Carbene-Metal-Amide (CMA) OLED emitter material with promising operating lifetime.

The emitter is based on a a new CMA complex with a rigid amide donor, benzoguanidine. The researcher say that the new design unlocks bright charge-transfer deep-blue emission with 100% photoluminescence quantum yields. The excited state lifetimes of the new CMA complexes are among the lowest reported to date among all TADF emitters
(down to 213 ns), resulting in remarkably fast radiative rates of up to 4.7 × 10 6 s⁻¹ . 

Researchers from Chung-Ang University developed a new AI model to predict the characteristics of blue OLED devices. The new model is highly accurate - and achieved a prediction accuracy of 99.2% for the triplet fusion rate constant and 99.9% for the triplet emission rate.

To develop this model, the researchers first developed modeling that improved the calculation accuracy of the triplet emission ratio, one of the key properties of blue light emitting materials. Based on this modeling, an AI model was created to predict the triplet emission ratio and fusion rate constant by generating a transient EL extinction curve.

Researchers from the University of Science and Technology of China (USTC), in collaboration with scientists from the University of Cambridge and Beijing Information Science and Technology University developed a novel blue OLED emitter design, based on 5Cz-BO molecules, that offers highly efficient emission with a narrow emission spectrum.

The new OLED emitters incorporate multiple carbazole donor groups into the multiple resonance (MR) type electron acceptor units. This design offers narrow-band short-range charge transfer excited states and it also reduced the energy level difference between the molecule’s singlet and triplet states.

Researchers from the UK's Northumbria, Cambridge, Imperial and Loughborough universities developed a new Hyperfluorescence OLED emitter system based on a new molecular design, which is highly efficient and simple to produce.

The researchers explain, that in Hyperfluorescence  systems, the elimination of the Dexter transfer to terminal emitter triplet states is the key towards OLED efficiency and stability. Current devices rely on high-gap matrices to prevent Dexter transfer, which unfortunately leads to overly complex devices from a fabrication standpoint. The researchers developed a novel molecular design in which ultranarrowband blue emitters are covalently encapsulated by insulating alkylene straps. 

Universal Display Corporation reported its financial results for Q4 2023, with revenues of $158 million, and a net income of $62 million. For the whole year (2023), UDC reproted revenues of $576 million and net income of $203 million. The company ended 2023 with $800 million in cash and equivalents, and has increased its quarterly dividend.

UDC says that the market still suffers from soft spending in smartphone and premium TVs. UDC, however, says that it believes that the OLED industry is starting a new and exciting multiyear investment cycle.

Researchers from the UK's National Physical Laboratory (NPL), together with the Samsung Advanced Institute of Technology (SAIT), released a new study to better understand the degradation of blue OLED devices. 

Close-up of the OrbiSIMS instrument’s vacuum chamber showing the nozzles of the ion beams and electrode that extract ionised molecules for analysis (Picture credit: NPL)

The OLED degradation mechanisms that limit the lifetime of blue OLED emitters, whether physical, chemical or something else, are still not yet fully understood. Understanding the degradation mechanism of blue OLEDs is essential to improve their performance and stability. The NPL / SAIT team used OrbiSIMS, an innovative mass spectrometry imaging technique invented at NPL in 2017, to study OLED degradation. 

Researchers Durham University, led by Professor Andrew Monkman, discover new OLED emitters that offer high performance in a hyperfluorescence emission system. The main new material, a molecule called ACRSA, was found to triple the efficiency of hyperfluorescence OLED devices.

These OLED emitters aren't actually new - they were studied years ago, but were found to be poor emitters. That was true when used as OLED emitters, but when used in a hyperfluorescence system (which combines both fluorescent and TADF emitters), these were surprisingly efficient. The ACRSA emits a green emission, but deep blue light emission can be achieved by transferring ACRSA's energy to a blue terminal emitter. This approach reduces exciton energy compared to direct blue emission in devices, allowing more stable, longer-lasting blue OLEDs.