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ETH Zurich makes nano-scale OLED pixels — Level A1 — A black and white photo of a diamond pattern

ETH Zurich makes nano-scale OLED pixelsCEFR A1

8 Dec 2025

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Adapted from ETH Zurich, Futurity • CC BY 4.0

Photo by Shaawn, Unsplash

Level A1 – Beginner
2 min
63 words
  • Researchers at ETH Zurich make tiny OLED pixels.
  • The pixels are much smaller than human cells.
  • The team made a small logo with many pixels.
  • The pixels glow and act as tiny lights.
  • These pixels can make very small screens.
  • They can also help in small microscopes.
  • The researchers use thin material to make templates.
  • The team plans to control each pixel individually.

Difficult words

  • researcher — people who study and work in science
    Researchers
  • pixel — small dot of light on a screen
    pixels
  • microscope — tool to look at very small things
    microscopes
  • template — thin shape used to make other parts
    templates
  • glow — give out light in a soft way
  • control — make something work the way you want

Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.

Discussion questions

  • Would you like a very small screen?
  • Have you ever used a microscope?
  • Do you prefer big or small logos on devices?

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