16 July 2021 | Fraunhofer IAP | Progresses Challenges On

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Play, download and edit the free video 16 July 2021 | Fraunhofer IAP | Progresses Challenges On QD Colouring Displays (Teaser).

Yohan Kim, André Geßner, Hyung Seok Choi, Jiyoung Kim and Armin Wedel | Recently, Cd-free quantum dots (QDs) such as InP for green and red, and ZnSe for blue emission have gained a great amount of attention as electroluminescent (EL) or photoluminescent (PL) QD display applications due to their potential with good optical properties as an environmentally friendly alternative to Cd-based QDs. Our team has been working on QD technologies for over 10 years with various industry and governmentfunded projects. Here, the important progresses and current challenges on both EL and PL QD application will be discussed. Since the patterning technology of the QD layer is the most critical aspect for QD displays, the inkjet printing activity, the most promising technology for pixelation, on the QD layers including ESJET/EHDJET process will be also briefly introduced.
Our understanding of the fundamental design principles on not only Cd-free QD materials but also PL EL QD displays combining with their printing technologies can provide a new opportunity to overcome the challenges on the commercialization of QD display in the next-generation information display market.

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