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On October 28, 2026, Seoul Biosys announced that it has developed and begun mass production of a third-generation optical semiconductor based on WICOP technology; the product emits white light without the need for rare-earth phosphors or packaging. The first product is a 25μm x 10μm Micro LED with a white-light-region luminous efficacy of about 100 lm/W, and the company aims to reach 200 lm/W within two years. The company says that by reducing rare earths and packaging materials such as silicone resin, plastic, and lead frames, manufacturing costs can be cut to half of current levels, and it will prioritize supplying major customers starting in the fourth quarter. There are currently no subsequent development facts.
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Seoul Biosys Mass-Produces Rare-Earth-Free White-Light Micro LED, Cost Can Be HalvedDevelopments
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Seoul Biosys begins mass production of rare-earth-free white-light Micro LED
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Oct 28
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Seoul Biosys Mass-Produces Rare-Earth-Free White-Light Micro LED, Cost Can Be Halved
Seoul Biosys has mass-produced third-generation optical semiconductors based on WICOP technology, which can emit white light without the need for rare-earth phosphors or packaging. The first product is a 25µm x 10µm Micro LED with a white-light-region luminous efficacy of about 100 lm/W, with a target of reaching 200 lm/W within two years. The company says that by reducing rare earths and packaging materials such as silicone resin, plastic, and lead frames, manufacturing costs can be reduced to half of current levels, and it will prioritize supplying major customers starting in the fourth quarter.