| 摘要 |
PROBLEM TO BE SOLVED: To improve a filled density of a fluorescent screen, and improve service life characteristics and brightness characteristics of an image display device. SOLUTION: This image display device comprises a field emission type display device provided with a face plate on which the fluorescent screen is formed, and a means to radiate an electron beam to the fluorescent screen. The fluorescent screen is composed of main phosphor mixed with particulate phosphor of an average grain size, smaller than 1/2 that of the main phosphor. Since the particulate phosphor is mixed, the filled density of the fluorescent screen is improved, thereby both characteristics of service life and brightness are improved. COPYRIGHT: (C)2003,JPO
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