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Plasma display panel and phosphor

A display panel and plasma technology, applied in the field of phosphors, can solve the problems of prolonged afterglow time, animation intermodulation distortion, and reduced animation display characteristics of PDP, etc., and achieve the effect of short afterglow time

Inactive Publication Date: 2014-04-09
PANASONIC CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, as a green phosphor, if Zn 2 SiO 4 : Mn, or Zn 2 SiO 4 : Mn and (Y, Gd) Al 3 B 4 o 12 : The mixture of Tb, due to the prolonged afterglow time, in the case of displaying active and fast images, the so-called "tailing: tailing" is produced, thereby reducing the animation display characteristics of the PDP
In addition, especially in a 3D-PDP capable of expressing stereoscopic images, if the afterglow time of the phosphor used is prolonged, there is a problem that due to the overlap between the left-eye image and the right-eye image displayed in a short time, The resulting animation is distorted and does not display a good stereoscopic image

Method used

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  • Plasma display panel and phosphor
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  • Plasma display panel and phosphor

Examples

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Embodiment

[0047] Specific examples and comparative examples are given below to describe the phosphor in the present invention in detail, but the phosphor in the present invention is not limited to these examples.

[0048]

[0049] As a starting material, BaCO was used 3 、Eu 2 o 3 , MgO, SiO 2 , CaCl 2 , weighed to make it a prescribed composition, and wet-mixed in pure water using a ball mill. After drying the mixture, first, it is fired in the air at a temperature range of 800 to 1000° C. for 4 hours, and secondly, it is fired at a temperature range of 1000 to 1200° C. in nitrogen containing 1 to 5 volume % hydrogen for 4 hours. Hours to obtain phosphor powder.

[0050] Furthermore, the obtained phosphor powder was pulverized again using a ball mill to adjust the particle size distribution.

[0051]

[0052] Phosphor samples corresponding to Examples and Comparative Examples were irradiated with vacuum ultraviolet light having a wavelength of 146 nm in vacuum to measure lumin...

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Abstract

Provided is a high-efficiency plasma display panel which has a short afterglow time and a high level of brightness. The plasma display panel of the present invention comprises a green phosphor layer which emits a visible light from vacuum ultraviolet rays, and the green phosphor layer comprises a green phosphor expressed in the following general formula: aBaO(2-a)EuObMgOcSiO2fCaCl2(1.800<=a<=1.980, 0.950<=b<=1.050, 1.900<=c<=2.100, 0.001<=f<=0.020).

Description

technical field [0001] The present invention relates to a plasma display panel (hereinafter appropriately referred to as “PDP”) and a phosphor used in the plasma display panel, a mercury-free fluorescent lamp, and the like. Background technique [0002] In recent years, various compositions have also been put into practical use as phosphors for PDPs. For example, as a blue phosphor, BaMgAl can be used 10 o 17 : Eu, as a green phosphor, (Y, Gd) Al can be used 3 B 4 o 12 : Tb and Zn 2 SiO 4 : Mixture of Mn. [0003] However, as a green phosphor, if Zn 2 SiO 4 : Mn, or Zn 2 SiO 4 : Mn and (Y, Gd) Al 3 B 4 o 12 : The mixture of Tb, due to the prolonged afterglow time, in the case of displaying active and fast images, so-called "tailing: tailing" occurs, thereby reducing the animation display characteristics of the PDP. In addition, especially in a 3D-PDP capable of expressing stereoscopic images, if the afterglow time of the phosphor used is prolonged, there is a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/61H01J11/42
CPCC09K11/61H01J17/497H01J11/42C09K11/7734H01J2211/12H01J29/20C09K11/77342
Inventor 奥山浩二郎
Owner PANASONIC CORP
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