Application of Quantum-dot Patterned Film with Scattering Nanoparticles for the High Efficiency Displays

Young Joo Kim, Hyo Jun Kim, Kiju Um, Hyebin Yang, Kangtaek Lee

Research output: Contribution to journalConference articlepeer-review

Abstract

Quantum dot (QD) as a color converting material in the form of patterned film can effectively improve the optical efficiency of displays. Since all of the light passing through the QD film cannot be fully down-converted, however, novel structure or materials are required to improve the light down-converting efficiency in the QD film. TiO2 and wrinkled silica particles are respectively applied as scattering nanoparticles which can increase optical path of light in this study. From experimental results, it was confirmed that optical efficiencies of red and green light in white OLED prepared with QD and TiO2 were enhanced further by 57.3% and 17.5%, respectively. In addition, the QD-converting efficiency to green light from blue μ-LED was increased using wrinkled silica-QD hybrid particles, resulting in the enhanced luminous efficacy of 13.1lm/W with 15wt% QD concentration.

Original languageEnglish
Pages (from-to)572-574
Number of pages3
JournalDigest of Technical Papers - SID International Symposium
Volume50
Issue numberS1
DOIs
Publication statusPublished - 2019
EventInternational Conference on Display Technology, ICDT 2019 - Suzhou, China
Duration: 2019 Mar 262019 Mar 29

Bibliographical note

Publisher Copyright:
© 2019, John Wiley and Sons Inc. All rights reserved.

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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