Flat panel display device
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/(D·
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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Abstract
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:
k=S/(D·n)
- 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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Citations
21 Claims
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1. A flat panel display device comprising:
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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/(D·
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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An electron emission device of a flat panel display device comprising:
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a cathode having an electron emitting source for emitting a plurality of electrons in a vacuum; an anode facing the cathode and for receiving the electrons emitted from the electron emitting source in the vacuum; and a phosphor screen for emitting light by receiving the electrons emitted from the electron emitting source in the vacuum, wherein the phosphor screen comprises a plurality of phosphor particles, wherein a proportion, k, between a screen weight of the phosphor screen and an average diameter of the phosphor particles satisfies;
k=S/(D·
n)where, k ranges from about 0.16 to 0.20 mg/cm2·
μ
m, S is a 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. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A flat panel display device comprising:
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means for providing a vacuum structure; means for emitting a plurality of electrons within the vacuum structure; means for receiving the plurality of electrons within the vacuum structure; and means for emitting light by receiving the plurality of electrons within the vacuum structure, wherein the means for emitting light comprises a phosphor screen comprising a plurality of phosphor particles, wherein a proportion, k, between a screen weight of the phosphor screen and an average diameter of the phosphor particles satisfies;
k=S/(D·
n)where, k ranges from about 0.16 to 0.20 mg/cm2·
μ
m, S is a 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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Specification
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Current AssigneeSamsung SDI Company Limited
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Original AssigneeSamsung SDI Company Limited
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InventorsPark, Zin-Min, Lee, Soo-Joung
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Primary Examiner(s)Ton; Toan
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Assistant Examiner(s)FEATHERLY, HANA SANEI
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Application NumberUS10/978,214Publication NumberTime in Patent Office1,628 DaysField of Search313/497, 313495-496, 313/309US Class Current313/497CPC Class CodesC09K 11/642 with zinc or cadmiumH01J 1/63 characterised by the lumine...
