Seoul Viosys mass-produces rare-earth-free white Micro LED

Seoul Viosys has begun mass production of a third-generation optical semiconductor built on its WICOP technology, which produces white light without rare-earth phosphors or packaging. The first product measures 25µm×10µm, outputs 0.015 lm of white light at about 100 lm/W, and the company plans to extend it to AR displays and optical communication for AI data transfer. Later reports name the product WICOP 3, say the chip can be as small as 10µm, and call it the first white optical semiconductor under 100µm. Both reports give a target of 200 lm/W within two years. The earlier report said manufacturing cost would be halved from current levels; the later one says cost is already about half that of conventional white LEDs.

Written by AI from the coverage · updated 26 minutes ago