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

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

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

Abstract

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
PublisherSPIE
ISBN (Electronic)9781510644106
DOIs
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
Volume11788
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceDigital Optical Technologies 2021
Country/TerritoryGermany
CityVirtual, Online
Period6/21/216/25/21

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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