High-efficiency near-infrared OLED microdisplay with fine pixel array

T. Ichikawa, A. Takagi, N. Yamada, K. Itonaga, H. Nakanotani, C. Adachi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


To create a new sensing light source that is expected to expand its application, we conducted the research and development regarding a self-emissive near-infrared-OLED (NIR-OLED) microdisplay featuring a compact form factor and active drive as a new sensing light source. In order to realize a compact and multi-pixel active-drivable NIR-OLED microdisplay, we have developed a high-efficiency NIR-OLED material and a top-emission-type NIR-OLED device to drive it actively with a CMOS backplane on a silicon substrate. Finally, by integrating this material and device structure, we successfully demonstrated excellent characteristics with a pixel pitch of 7.8 μm, a peak wavelength of more than 900 nm, and external quantum efficiency (EQE) of approximately 1%. Through this study, we confirmed the possibility of realization a high-efficiency NIR-OLED microdisplay with a fine pixel array in principle, and it's expected to contribute to power consumption reduction and miniaturization as a new sensing light source to be apply for new value creation.

Original languageEnglish
Title of host publicationDigital Optical Technologies 2021
EditorsBernard C. Kress, Christophe Peroz
ISBN (Electronic)9781510644106
Publication statusPublished - 2021
EventDigital Optical Technologies 2021 - Virtual, Online, Germany
Duration: Jun 21 2021Jun 25 2021

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceDigital Optical Technologies 2021
CityVirtual, Online

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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