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Flat panel display device

  • US 7,518,304 B2
  • Filed: 10/29/2004
  • Issued: 04/14/2009
  • Est. Priority Date: 10/31/2003
  • Status: Expired due to Fees
First Claim
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1. A flat panel display device comprising:

  • a first substrate;

    an electron emission region on the first substrate;

    a second substrate facing the first substrate and forming a vacuum vessel with the first substrate; and

    a light emitting region for emitting light derived by electrons emitted from the electron emission region and comprising an anode on the second substrate in a pattern and a phosphor screen on at least one side of the anode,wherein a proportion, k, between a screen weight of the phosphor screen and an average diameter of phosphor particles in the phosphor screen satisfies;


    k=S/(

    n
    )where, k ranges from about 0.16 to 0.20 mg/cm2·

    μ

    m, is the screen weight in mg/cm2, D is the average diameter of the phosphor particles in μ

    m, and n is a number of phosphor layers accumulated in the phosphor screen.

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