Korea-based OLED and QD materials developer Duksan Neolux says it has secured core material technology for QD-EL microdisplays on silicon (QLEDoS), aimed at AR and VR devices. The company plans to start prototype production and customer evaluations in 2027.
According to industry sources, Duksan Neolux has filed four QD-related patents as part of a project to develop a photopatternable RGB independent-pixel frontplane for QLEDoS displays with a pixel density of 6,000 PPI or higher. The patents cover technologies that protect the structure of the QD particles in order to improve stability and maximize luminous efficiency.
Duksan Neolux has completed basic QD synthesis and optical characterization work and is now verifying patterning characteristics. The materials are cadmium-free InP-based QDs. Having brought QD emitter synthesis in-house, the company intends to extend its lineup to cover all three colors. Beyond the QD particles themselves, it is also developing photopatternable QD inks and composites for use in actual display production - QDs with specially treated surfaces combined with photosensitive resins, which are coated, exposed and developed to place red, green and blue emitters precisely at their pixel locations.
To develop these technologies Duksan Neolux collaborated with researchers from Hanyang University, the Korea Electronics Technology Institute (KETI) and the Korea Institute of Machinery and Materials, with Samsung Display taking part as a prospective customer evaluating the results. The project is supported by the Ministry of Science and ICT and the National Research Foundation of Korea, and runs from April 2024 to December 2028.
The company plans to mature its core technologies - QD synthesis, optical properties, surface treatment and patterning - through 2026, produce prototypes and run comprehensive performance evaluations with customers from 2027, and demonstrate and verify 6,000 PPI independent RGB pixels in 2027-2028.