1. Electronic Devices Engineering Department; Mitsubishi Electric Lighting Corporation; 5-1-1, Ofuna Kamakura-City Kanagawa 247-8501 Japan
2. LCD Division; Mitsubishi Electric Corporation; 1576-1 Shisuimachi-sumiyoshi Kikuchi-City Kumamoto 861-1203 Japan
3. Advance Technology R&D Center; Mitsubishi Electric Corporation; 8-1-1 Tsukaguchi-honmachi Amagasaki-City Hyogo 661-8661 Japan