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FED is drawing attentions as one of the most promising flat panel displays and as a real successional display to CRT. For 20 years, many institute and companies have coped with the development of FEDs. However, the development of FEDs did not proceed on schedule. Recently, some breakthroughs have been made in FED technologies. At present FEDs are on the eve of coming into mass production. The paper describes the latest status of SEDs, spint-type FEDs, and CNT-FEDs.