The Colloidal Quantum Dot Based Color Conversion Layer for Micro LED Arrays

Chien-Chung Lin, Hao Chung Kuo, Guan Ying Lee, Han Yu Chao, Shao Yi Weng

Research output: Contribution to journalConference articlepeer-review


The advances of micro LEDs and colloidal quantum dots have provided a great platform for the next generation of micro displays. Although the illuminating efficiency of colloidal quantum dots is close to 100%, the patterning of these nanocrystals is still important and need to be developed. We use semiconductor grade fabrication to obtain small pixels smaller than 10 micrometers and a large scale formation of array. The photonic characterization reveals the conversion efficiency is 20% and the excitation wavelength dependent behavior is also probed. A 1300-hour of vacuum storage test showed this type of color conversion layer is stable and the emission wavelength and linewidth are almost unchanged.

Original languageEnglish
Pages (from-to)1087-1090
Number of pages4
JournalDigest of Technical Papers - SID International Symposium
Issue number1
StatePublished - 2023
EventSID International Symposium Digest of Technical Papers, 2023 - Los Angeles, United States
Duration: 21 May 202326 May 2023


  • Colloidal quantum dots
  • color conversion efficiency
  • color conversion layers
  • micro LEDs
  • micro displays
  • quantum efficiency


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