한국전기전자재료학회논문지 (Journal of the Korean Institute of Electrical and Electronic Material Engineers)

  • 제36권5호
  • /
  • Pages.494-499
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  • 2023
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  • 1226-7945(pISSN)
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  • 2288-3258(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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Micro LED 제작을 위한 Color Filter용 잉크젯 공정 적색, 녹색 형광체 잉크 연구

Fabrication of Red and Green Phosphor Ink for the Micro LED Color Filter Using Ink-Jet Process

  • 김보중 (한국공학대학교 신소재공학과) ;
  • 유시홍 (한국공학대학교 신소재공학과) ;
  • 양효실 (한국공학대학교 신소재공학과) ;
  • 문영부 ((주) 유제이엘) ;
  • 윤창번 (한국공학대학교 신소재공학과)
  • Bo Joong Kim (Department of Advanced Materials Engineering, Tech University of Korea) ;
  • Si Hong Ryu (Department of Advanced Materials Engineering, Tech University of Korea) ;
  • Hyo Sil, Yang (Department of Advanced Materials Engineering, Tech University of Korea) ;
  • Young Boo Moon (UJL) ;
  • Chang-Bun Yoon (Department of Advanced Materials Engineering, Tech University of Korea)
  • 투고 : 2023.06.24
  • 심사 : 2023.07.24
  • 발행 : 2023.09.01
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초록

In this paper, in order to apply the CF (color filter) type of the micro light emitting device (Micro LED) display method, a study on the manufacturing process of red and green phosphor inks for the inkjet process was conducted. The blue light-emitting KSF and LuAG phosphors were respectively used to control the phosphor particle size to about 1㎛, and a phosphor ink was prepared by synthesizing with a low-viscosity solution (IPA/Eg). A chemical dispersion method was applied to selectively control the dispersion characteristics in the manufacture of phosphor inks, and in particular, phosphor inks with a dispersant applied a dispersant secured stable dispersion characteristic compared to phosphor inks without a dispersion process. Therefore, it seems possible to manufacture CF for Micro LED through an inkjet process capable of controlling the dispersion characteristics of phosphor ink.

키워드

과제정보

This work was supported by the Technology development Program (S3276978) funded by the Ministry of SMEs and Startups (MSS, Korea).

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