Method for Controlling Surface Energy of Bank Surfaces to Fabricate High Thickness Inkjet-printed QD Color Conversion Layer

Sang Youn Lee, Chun Sakong, Kyung Tae Kang, Byeong Kwon Ju, Kwan Hyun Cho

Research output: Contribution to journalConference articlepeer-review

Abstract

Quantum dot (QD) color conversion layer (CCL) has been attracting interest due to their fascinating properties. The QD CCL with thickness of microns is required to successfully block blue light leakage. However, controlling the thickness profile in micro-scale display pixels via the IJP remains a challenge. In this study, we controlled the surface energy of CCL by using CF4-plasma treatment to control the thickness profile and improve the color conversion efficiency. Through mask-free CF4-plasma treatment, the bank became hydrophobic due to the fluorinated treatment, while the glass became hydrophilic due to the cleaning effect, selectively.

Original languageEnglish
Pages (from-to)872-875
Number of pages4
JournalDigest of Technical Papers - SID International Symposium
Volume54
Issue number1
DOIs
Publication statusPublished - 2023
EventSID International Symposium Digest of Technical Papers, 2023 - Los Angeles, United States
Duration: 2023 May 212023 May 26

Bibliographical note

Publisher Copyright:
© 2023, John Wiley and Sons Inc. All rights reserved.

Keywords

  • CF4 plasma treatment
  • Color conversion layer
  • Inkjet printing (IJP)
  • Quantum dot (QD)
  • Surface energy

ASJC Scopus subject areas

  • General Engineering

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