Blue color

LORDIN has publicly disclosed the molecular structure behind its ZETPLEX platinum (Pt) dopant concept, publishing the work in a peer-reviewed paper. The disclosure marks the first time the company has revealed the chemistry underlying its materials. 

LORDIN says that the material structure leads to a simplified deposition process while also improving device lifetime.

Researchers from Kyung Hee University published a new study in Advanced Functional Materials that studies the the causses of the short operational lifetime of blue phosphorescent OLEDs. 

The researchers say that intrinsic material toughness (things like bond dissociation energy and molecular rigidity) is not enough to predict how long a device will actually last, because materials with very similar chemical stability can show dramatically different lifetimes. To get to the root cause, the researchers combined two complementary characterization techniques: transient photoluminescence (TrPL), which measures a material's intrinsic exciton behavior under optical excitation, and magneto-electroluminescence (MEL), which probes exciton dynamics under actual electrical operation.

Researchers from Kyoto University, have developed a new molecular design concept for MR-TADF OLED emitters, that spatially expands and amplifies the multiple resonance effect. 

The new molecule, called m-CzB10-Mes has a nano-carbon framework, with a ladder-type structure, and it achieved an emission bandwidth dramatically smaller than those of conventional multiple resonance emitters. Furthermore, the molecule also exhibits excellent TADF performance. 

A couple of months ago we reported that  the Korean Supreme Court upheld the validity of SFC's blue OLED emitter patent, and did not accept the claims by SK Materials JNC (SKMJ) that the patent was invalid.

Now we hear from Korea that SFC has won a civil lawsuit against SKMJ, and was awarded with 100 million Won in damages ($65,000 USD) plus all litigation expense. SFC was also seeking to ban SKMJ from marketing this material, and its likely that this is part of the court's decision. 

We're excited to launch Bright Side with Brannan, a new column by Prof. Alexander Brannan of the University of Manchester. In this column, Prof. Brannan will explore the science behind OLED technology — the materials, the physics, and the open questions driving the field forward. The following article is the first in the series.

OLED emitter materials are currently dominated by closed-shell compounds. This means their occupied molecular orbitals, including the highest occupied molecular orbital, or HOMO, are fully occupied by paired electrons in the ground state. In other words, there are no unpaired electrons.

This electronic structure underpins the conventional OLED emitter families: fluorescent, phosphorescent, and thermally activated delayed fluorescence (TADF) emitters. In each case, the excited states are usually described within the traditional singlet and triplet framework.

Tianma is showing its latest OLED display prototypes at SID Displayweek 2026. First up we have a 6.58" AMOLED that adopts Tianma's latest U11 OLED stack, which utilizes a a PSF emitter system (likely green, but Tianma did not specify) and also a new fluorescence emitter system which Tianma calls NFT (New Fluorescent Technology) based on New Fluorescent Blue (NFB). 

Tianma says that the new NFT device structure improves exciton utilization efficiency, and utilizing these new technologies, the U11 reduces overall power consumption by approximately 12% compared to Tianma's previous stack, while doubling lifespan. The optimized RGB spectrum and light-extraction design also enable an ultra-low blue-light ratio while maintaining high efficiency.

LG Display is showcasing a wide range of OLED displays and prototypes at SID Displayweek 2026. In this article we detail the most interesting demonstrations and technologies.

First up, is LG's 3rd-Gen Tandem OLED, these are AMOLED displays, aimed towards the automotive market. LG says that it has introduced two new technologies into its tandem stack - a deep-blue dopant and optimized hole and electron movement. It isn't clear exactly what LG refers to, but it does say that these new technologies enable tandem OLEDs with improved power consumption (18%), brightness (1,200 nits), lifetime (over 15,000 hours) and color purity and reproduction. 

Researchers from Inha University and Pusan National University have developed a the world's highest-efficiency solution-processed blue OLED device, achieving an EQE of 36.7%. As TCL CSOT gears up to begin OLED mass production utilizing inkjet printing, there is renewed interest in soluble OLEDs.

To create this new device, the researchers developed a new OLED emitter, a platinum(II) complex, "PtON-QBn", and also introduced a new "PVK Template Layer" in the OLED device stack.

Researchers from Hanyang University, Gyeongsang National University, and Soongsil University have developed a high-efficiency soluble blue OLED emitter based on a hyperfluorescence architecture.

The new emitter platform uses a polymer/small-molecule hybrid emitting layer composed of a polymeric thermally TADF sensitizer and a narrowband MR-TADF emitter.

According to reports, the Korean Supreme Court upheld the validity of SFC's blue OLED emitter patent, and did not accept the claims by SK Materials JNC that the patent was invalid.

This patent dispute started in 2020, when SK Materials JNC filed the patent invalidation application, and the patent court held the patent as valid in the summer of 2024. SK Materials JNC then appealed to the supreme court.