| 摘要 |
A flat panel display device includes a first substrate; an electron emission region formed on the first substrate; a second substrate located at a predetermined distance facing the first substrate and forming a vacuum vessel with the first substrate; and a light emitting region which emits light derived by electrons emitted from the electron emission source. The light emitting region includes an anode in a predetermined pattern that formed on the second substrate and a phosphor screen layered on the anode. A proportion, k between a screen weight of the phosphor screen and an average diameter of phosphor particles on the phosphor screen satisfies: <?in-line-formulae description="In-line Formulae" end="lead"?>k=S/(D.n)<?in-line-formulae description="In-line Formulae" end="tail"?> where, k ranges from 0.16 to 0.23, S is the screen weight (mg/cm2), D is the average diameter of the phosphor particles, and n is the number of accumulation layers of the phosphor powder particles on the phosphor screen.
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