Multi-Color Light-Emitting Diodes

Su Ma, Yawei Qi, Ge Mu*, Menglu Chen, Xin Tang*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

9 Citations (Scopus)

Abstract

Multi-color light-emitting diodes (LEDs) with various advantages of color tunability, self-luminescence, wide viewing angles, high color contrast, low power consumption, and flexibility provide a wide range of applications including full-color display, augmented reality/virtual reality technology, and wearable healthcare systems. In this review, we introduce three main types of multi-color LEDs: the organic LED, colloidal quantum dots (CQDs) LED, and CQD–organic hybrid LED. Various strategies for realizing multi-color LEDs are discussed including red, green, and blue sub-pixel side-by-side arrangement; vertically stacked LED unit configuration; and stacked emitter layers in a single LED. Finally, according to their status and challenges, we present an outlook of multi-color devices. We hope this review can inspire researchers and make a contribution to the further improvement of multi-color LED technology.

Original languageEnglish
Article number182
JournalCoatings
Volume13
Issue number1
DOIs
Publication statusPublished - Jan 2023

Keywords

  • CQD–organic hybrid LED
  • OLED
  • QLED
  • full-color display
  • multi-color LED

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