Journal of the Semiconductor & Display Technology (반도체디스플레이기술학회지)

The Korean Society Of Semiconductor & Display Technology (한국반도체디스플레이기술학회)
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A Study on Vacuum-deposited Transparent OLED to Improve Its Transmittance and Luminescence Characteristics with a Mesh Electrode

진공 증착 투명 OLED 투과도 및 발광 특성 개선을 위한 Mesh 전극 연구

  • Young Woo Kim (Department of Semiconductor Engineering, Gachon University) ;
  • Yongmin Jeon (Department of Medical Biomedical Engineering, Gachon University) ;
  • Eou-Sik Cho (Department of Electronics Engineering, Gachon University ) ;
  • Sang Jik Kwon (Department of Electronics Engineering, Gachon University )
  • 김영우 (가천대학교 반도체공학과) ;
  • 전용민 (가천대학교 의공학과) ;
  • 조의식 (가천대학교 전자공학과) ;
  • 권상직 (가천대학교 전자공학과)
  • Received : 2024.05.31
  • Accepted : 2024.06.21
  • Published : 2024.06.30
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Abstract

With the growing field and growing interest in transparent organic light-emitting diodes (TOLED) in the industry, various attempts are being made to improve the transmittance and performance of TOLED. TOLEDs are expected to be used in next-generation displays such as mixture reality (MR) displays, displayable windows, televisions, etc. This study presents a mesh TOLED with better transmittance and luminescence characteristics than existing TOLEDs through an in-situ vacuum deposition method that does not require additional processes such as photolithography and etching. In this study the mesh TOLED's cathode consists of Mg: Ag 1:9 electrode. Mesh patterns are interconnected with a 6 nm layer of interlayer. We approached transmittance improvement up to 30% at 555 nm at the cathode electrode with similar current injection character, also we improved lumination characteristics up to 23% at 7 V driving condition.

Keywords

Acknowledgement

본 성과는 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임(No. NRF-2022R1A2C1003076).

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