Seoul Viosys starts mass production of rare-earth-free white LED emitter
Seoul Viosys, a South Korean optoelectronics maker, has begun producing a white light emitter that avoids rare-earth materials, a rare step away from the phosphors that dominate white LEDs. The move matters because rare-earth supply is concentrated in China and subject to export controls, so a viable substitute could ease cost and supply risks for lighting and display manufacturers. Commercial scale and performance details were not disclosed.
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