Episode 4: Tunable electronic paper developed at human visual resolution

Episode 4: Tunable electronic paper developed at human visual resolution

From MRS Bulletin Materials News Podcast by MRS Bulletin

February 18, 2026 · 4 min · Season 8 · Episode 4

About this episode

Laura Leay interviews Kunli Xiong about his development of tunable electronic paper using tungsten trioxide nanodisks.

In this podcast episode, MRS Bulletin’s Laura Leay interviews Kunli Xiong from Uppsala University in Sweden about his development of metapixels as small as 560 nm, conducive for small video displays that can be located close to the human eye. Instead of using emissive pixels, Xiong uses electronic paper made up of tungsten trioxide nanodisks. By tuning the diameter and spacing of the nanodisks, certain wavelengths of light can be selectively reflected, leading to a color display. The degree o...

People in this episode

Host: Laura Leay

Guest: Kunli Xiong

Topics covered

  • tunable electronic paper
  • metapixels
  • color display
  • nanotechnology
  • video displays
  • human visual resolution

Keywords

  • tunable electronic paper
  • metapixels
  • tungsten trioxide
  • nanodisks
  • color display
  • video displays
  • human eye

Mentioned in this episode

Organizations: Uppsala University

Places: Sweden

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