Smallest OLED Pixels So Far
Scientists have successfully shrunk OLED pixels to the nanoscale, paving the way for a new generation of wearable displays.
A longstanding challenge in shrinking display LEDs has been overcome, as small LEDs often fail due to current concentration at their corners, resulting in short circuits.
Physicists have now created the world's smallest working light pixel, demonstrating how future displays for smart glasses and other wearables can become smaller, yet remain bright and stable.
The team from Julius-Maximilians-Universität Würzburg in Germany achieved this breakthrough by combining an organic light-emitting diode (OLED) with an optical antenna.
In conventional OLEDs, reducing pixel size leads to uneven current flow, damaging the device. The research team overcame this issue by designing a new structure that controls current spread within the diode, while also enhancing light output.
Their research shows how future displays for smart glasses and other wearables can become much smaller while remaining bright and stable.
Author's summary: Scientists shrink OLED pixels to nanoscale for wearables.
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