Breakthrough in Quantum Dot Technology: High-Resolution Micro-QLED Panels for Metaverse

Strategic Insights -

A team of researchers at the Beijing Institute of Technology has made a significant breakthrough in quantum dot technology, developing a high-resolution micro-light-emitting diode (Micro-QLED) panel for metaverse technology. The research, funded by the Beijing Municipal Science and Technology Commission, National Natural Science Foundation of China, and Natural Science Foundation of Beijing Municipality, has achieved an ultra-high pixel resolution of 6350 pixels per inch, a peak external quantum efficiency of 7.8%, and a maximum brightness of 39,472 cd m.

Key Takeaways:

  • The research has successfully fabricated a high-resolution Micro-QLED panel using photolithographic fabrication, achieving a resolution of up to 1184 pixels per inch with a peak EQE of 4.8% and a maximum brightness of 10,065 cd m.
  • The use of a dual-color red and green quantum dot color converter (QDCC) arrays has enabled the integration of a full-color Micro-QLED panel, paving the way for the development of high-resolution metaverse displays.
  • The photolithographic fabrication method is cost-effective and provides an easy-operated method for achieving high-resolution microdisplay panels.
  • The researchers have achieved an ultra-high pixel resolution of 6350 pixels per inch, with pixel sizes ranging from 20 mm x 20 mm to 2 mm x 2 mm.
  • The maximum brightness of the patterned blue devices is 39,472 cd m, while the maximum brightness of the patterned red devices is 103,022 cd m.
  • The research has been published in the journal Light, with the article titled "Photolithographic fabrication of high-resolution Micro-QLEDs towards color-conversion microdisplay."
  • The researchers have developed a pre-patterned template photolithographically fabricated and then applied as a substrate to fabricate the patterned blue Micro-QLED device.

Statistics:

  • A peak external quantum efficiency (EQE) of 7.8% was achieved by the patterned blue devices.
  • A maximum brightness of 39,472 cd m was achieved by the patterned blue devices.
  • A peak EQE of 18% was achieved by the patterned red devices.
  • A maximum brightness of 103,022 cd m was achieved by the patterned red devices.
  • The photolithographic fabrication method resulted in a resolution of up to 1184 pixels per inch.
  • The use of QDCC arrays enabled the integration of a full-color Micro-QLED panel.
  • The research was funded by the Beijing Municipal Science and Technology Commission, National Natural Science Foundation of China, and Natural Science Foundation of Beijing Municipality.

Sources:

  • Photolithographic fabrication of high-resolution Micro-QLEDs towards color-conversion microdisplay. Light, 2025;14(1):370.
  • NewsRx. Recent Findings from Beijing Institute of Technology Provide New Insights into Quantum Dots (Photolithographic fabrication of high-resolution Micro-QLEDs towards color-conversion microdisplay). Nanotechnology Weekly. November 3, 2025; p 1257.