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Phosphor composition for plasma display panel, and plasma display panel having phosphor layer composed of the phosphor composition

A display panel, plasma technology, applied in the direction of fluorescent layer, luminescent material, chemical instrument and method, etc., can solve the problems of deterioration, unsatisfactory brightness and color purity, etc.

Inactive Publication Date: 2006-11-01
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] When a green phosphor is used, good discharge characteristics are obtained, but satisfactory brightness and color purity cannot be obtained, and deterioration due to ion bombardment, etc. occurs

Method used

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  • Phosphor composition for plasma display panel, and plasma display panel having phosphor layer composed of the phosphor composition
  • Phosphor composition for plasma display panel, and plasma display panel having phosphor layer composed of the phosphor composition
  • Phosphor composition for plasma display panel, and plasma display panel having phosphor layer composed of the phosphor composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] 6.0 parts by weight of Y(NO 3 ) 3 -6H 2 O was dissolved in 194.0 parts by weight of 2-methoxyethanol. Next, 100 parts by weight of Zn 2 SiO 4 : Mn was added into the solution and stirred for 30 minutes to prepare mixture A. Mixture A was filtered to remove solvent. The resultant was dried and burned at a temperature of 525°C for 1 hour. At this point, provide sufficient air to achieve complete combustion of the organic matter.

[0077] Next, at 600°C, 5wt%H 2 and 95wt%N 2 The resultant was heat-treated for 1 hour in an atmosphere of , thereby obtaining a phosphor (average particle diameter: 3.0 μm) for PDP, which phosphor included Zn 2 SiO 4 :Mn phosphor and formed on Zn 2 SiO 4: continuous crystalline yttrium oxide layer on Mn phosphor (average thickness: 5-10 nm) ( image 3 ). refer to image 3 , it can be seen that the yttrium oxide layer is a continuous crystalline thin layer. exist image 3 In , black bars represent 10 nm.

[0078] 40 parts by wei...

Embodiment 2

[0081] A green phosphor layer for PDP was formed in the same manner as in Example 1, except that 4.5 parts by weight of Y(NO 3 ) 3 -6H 2 O is dissolved in 195.5 parts by weight of 2-methoxyethanol, and then 100 parts by weight of Zn 2 SiO 4 :Mn was added to prepare mixture A.

Embodiment 3

[0083] A green phosphor layer for PDP was formed in the same manner as in Example 1, except that 3.0 parts by weight of Y(NO 3 ) 3 -6H 2 O is dissolved in 197.0 parts by weight of 2-methoxyethanol, and then 100 parts by weight of Zn 2 SiO 4 :Mn was added to prepare mixture A.

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Abstract

Provided are a phosphor for a plasma display panel (PDP) including: a zinc silicate-based phosphor represented by the formula of Zn2SiO4:Mn; and a continuous crystalline metal oxide layer composed of yttrium oxide (Y2O3) formed on the zinc silicate-based phosphor, and a PDP having a phosphor layer composed of the phosphor. The phosphor for a PDP has a continuous crystalline layer composed of a positively charged metal oxide such as yttrium oxide, and thus has better surface properties. The metal oxide layer acts as a protecting layer to prevent deterioration of the phosphor due to ion bombardment. When the phosphor is used to manufacture a green phosphor layer for a PDP, a green discharge voltage can be controlled to levels of red and blue colors due to a better surface charge property and a poor specific gradation discharge problem can be resolved.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of Korean Patent Application No. 10-2005-0032796 filed with the Korean Intellectual Property Office on Apr. 20, 2005, the entire contents of which are described herein by reference. technical field [0003] The present invention relates to a phosphor (phosphor) for a plasma display panel (PDP) and a PDP having a phosphor layer formed of the phosphor, and more particularly to a discharge characteristic due to the prevention of plasma damage to the phosphor. A phosphor with improved and increased lifetime, and a PDP having a phosphor layer composed of the phosphor. Background technique [0004] Phosphor is a material that emits light in response to energy excitation, and is commonly used in light sources such as Hg fluorescent lamps, Hg-free fluorescent lamps, various devices such as field emission devices (FED), plasma display panels (PDP), etc., and Various other applications are ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/78H01J11/42
CPCC09K11/595H01J11/42C09K11/77
Inventor 金勇善宋美兰李贤德刘永喆权善英崔益圭朴规钻金志贤
Owner SAMSUNG SDI CO LTD
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