Taiwan's early LED industry focused mainly on downstream assembly; key mid- and upstream raw materials-epi-wafers and chips-still had to be supplied by major American and Japanese companies.
台灣早期的發光二極體產業，是以下游的封裝為主，至於上中游的關鍵原物料──磊晶片與晶粒，仍然得依賴美、日大廠供應。