Patent Number: 6,166,487

Title: Electron emission device and display device using the same

Abstract: An electron emission device exhibits a high electron emission efficiency. The device includes an electron supply layer of metal or semiconductor, an insulator layer formed on the electron supply layer, and a thin-film metal electrode formed on the insulator layer. The insulator layer is made of a dielectric substance and has a film thickness of 50 nm or greater. When an electric field is applied between the electron supply layer and the thin-film metal electrode, the electron emission device emits electrons.

Inventors: Negishi; Nobuyasu (Tsurugashima, JP), Yoshikawa; Takamasa (Tsurugashima, JP), Chuman; Takashi (Tsurugashima, JP), Ogasawara; Kiyohide (Tsurugashima, JP), Iwasaki; Shingo (Tsurugashima, JP), Ito; Hiroshi (Tsurugashima, JP)

Assignee: Pioneer Electronic Corporation

International Classification: H01J 1/312 (20060101); H01J 1/30 (20060101); H01J 063/04 ()

Expiration Date: 12/26/2013