[6] Epistar was the world's largest manufacturer of red and yellow LED in 2009, and held over 3000 patents.
At the time, Epistar Corp was still focused on LED epitaxial wafer and chip manufacturing.
[9] In 2022, Epistar sued Amazon for allegedly infringing on 12 LED patents related to Fire TVs.
[10] The suit, in Texas federal court, alleged some models of the Fire TV lineup contained LED chips that infringed on Epistar's patents.
[11] In 2022, the company stated it would be expanding mini LED chip production capacity in China from 1.2 to 1.5 million units per year.
[12] In May 2022, Ennostar subsidiaries included EPISTAR, Lextar Electronics, Unikorn Semiconductor, Yenrich Technology Corporation, and Prolight Opto.
[13] Among other facilities, in 2020, Epistar announced it would invest in a production line at the Central Taiwan Science Park.