Shian Yih Electronic Industry Co., Ltd. manufactures and sells backlight modules through itself and its subsidiaries in Taiwan, China, Japan, the United States, and other international markets. Its products include small to medium-sized LED backlight modules for automotive, tablet, and watch applications; light guide films; motorcycle and vehicle LED headlight modules; and precision injection molds for electronic housings, mobile phones, MP4 players, microphones, and car and navigation system backlight housings. The company also offers plastic products such as plastic frames, light guide plates, precision plastic parts, and mold design and manufacturing services. Incorporated in 1979, it is headquartered in Taichung, Taiwan.