Novel quantum dot enhancement film with a super-wide color gamut for LCD displays

Yun Hyuk Ko, Jea Gun Park

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

We present a novel quantum dot enhancement film (QDEF) with a remarkable RGB color gamut of over 100.4% (134.2%) of the Rec. 2020 standard (NTSC standard), respectively for a high-resolution liquid-crystal display (LCD). Our efficient QDEF was fabricated by using a highly transparent resin incorporated with high photoluminesce-quantum yield (PL-QY) and narrow full width at half maximum CsPbBr1I2 QDs (Pr-QDs) and CdSe/ZnS QDs (Cd-QDs). The proposed PrCd-QDEF in a LCD with color filters rendered a blue photoluminesce (PL) peak at 452 nm with a FWHM of 20.4 nm, a green PL peak at 530.1 nm with a FWHM of 23.8 nm, and a red color peak at 652.4 nm with a FWHM of 28.1 nm. Moreover, The PrCd-QDEF did not show any cross-talk between the RGB PL colors. Such promising optical results, along with the simple and cost-effective preparation technique, might encourage the manufacture of super high resolution LCDs using a PrCd-QDEF.

Original languageEnglish
Pages (from-to)45-51
Number of pages7
JournalJournal of the Korean Physical Society
Volume72
Issue number1
DOIs
StatePublished - 2018 Jan 1

Keywords

  • FWHM
  • LCD
  • Perovskite quantum dots
  • Quantum dot enhancement film
  • Wide color gamut

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