| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that a luminescent decay time of a conventional red fluorescent material is about 1 ms or longer in 1/10 decay and is extremely longer than a selection time of line sequential drive, therefore the red fluorescent material has a problem with degradation of movie display ability due to afterglow viewing. Ž<P>SOLUTION: The image display apparatus includes: a plurality of electron emitting devices arranged in a matrix shape; a drive circuit that drives the plurality of electron emitting devices through line scanning; and a face plate with cells formed therein comprising a red fluorescent material that receives electrons emitted from the electron emitting devices and emits red light, wherein gradation control is performed by varying an application time of a drive voltage that is applied to each of the plurality of electron emitting devices. A line selection time that is an application time of a drive voltage that is applied to each electron emitting device is longer than 1 μs and the red fluorescent material comprises a fluorescent material represented by the general formula: Me<SB>2</SB>Si<SB>5</SB>N<SB>8</SB>:Eu<SP>2+</SP>(Me is Ca or Sr). Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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