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Plasma display device

A plasma and display panel technology, applied in the direction of AC plasma display panels, gas discharge electrodes, solid cathode components, etc., can solve the problems of unsatisfactory brightness characteristics, achieve good photoelectric emission stability and color purity, good Life characteristics, effects of improving durability

Inactive Publication Date: 2009-07-29
SAMSUNG SDI CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the other hand, in a PDP having a high photoemission efficiency in which the percentage of Xe exceeds 6%, the fluorescent substance exhibits unsatisfactory luminance characteristics

Method used

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Embodiment

[0025] Zn 2 SiO 4 : Mn, (Ba, Sr, Mg)O·Al 2 o 3 :Mn and YBO 3 :Tb was mixed in each composition ratio shown in Table 1 to prepare a green fluorescent substance for a plasma display panel. The green fluorescent substance was dispersed in a carrier in which ethyl cellulose was dissolved in butyl carbitol acetate to obtain a fluorescent substance slurry. Phosphor paste screen printing on figure 1 Between the barrier ribs shown in and sintered at 500° C. to obtain a phosphor layer. When Xe is between 5% and 15%, the relative brightness is measured using a 146 nm excitation light source. The results are shown in Table 1 and Table 2.

[0026] Table 1

[0027]

[0028] Table 2

[0029]

[0030] The relative brightness of the three green phosphors can vary depending on the composition of the discharge gas. Assuming a percentage of Xe of 4% to 5%, ReBO 3 : 100% brightness of Tb phosphor, Zn 2 SiO 4 : The brightness of Mn phosphor is 110%, (Ba, Sr, Mg)O Al 2 o 3 : T...

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Abstract

A plasma display panel. A pair of substrates has a transparent front surface and is disposed to leave a discharge space therebetween. A plurality of barrier ribs is disposed on one substrate to partition the discharge space into a plurality of respective green discharge spaces, blue discharge spaces and red discharge spaces. A group of electrodes is disposed on the substrates to discharge in the discharge spaces partitioned by the barrier ribs. A phosphor layer is formed in the discharge spaces, the phosphor layer being a green phosphor layer for the green discharge spaces, a blue phosphor layer for the blue phosphor discharge spaces, and a red phosphor layer for the red discharge spaces. A discharge gas is filled in the discharge spaces, wherein the green phosphor layer comprises from 10 to 70% by weight of a first green phosphor selected from the group consisting of Zn2SiO4:Mn, (Zn, A)2SiO4;Mn (where A is an alkali metal), and mixtures thereof; from 0 to 30% by weight of a second green phosphor selected from the group consisting of (Ba, Sr, Mg)O.aAl2O3:Mn (where a is from 1 to 23), LaMgAlxOy:Tb,Mn (where x is from 1 to 14 and y is from 8 to 47), and mixtures thereof; and from 20 to 70% by weight of a third green phosphor selected from the group consisting of ReBO3:Tb (where Re is at least one rare earth element selected from the group consisting of Sc, Y, La, Ce, and Gd), and wherein the discharge gas comprises at least 6% by weight of Xe based on the total weight of the discharge gas.

Description

[0001] Cross-references for applications [0002] This application claims priority and benefits from Korean Patent Application No. 2003-37113 filed with the Korean Intellectual Property Office on June 10, 2003, the entire contents of which are incorporated herein by reference. technical field [0003] The present invention relates to a plasma display panel, in particular to improving the discharge efficiency by using a discharge gas containing a high percentage of xenon (Xe), and by increasing the content of a green fluorescent substance in proportion to the increase in the percentage of xenon, so as to significantly increase its green brightness A plasma display panel with long service life characteristics. Background technique [0004] A plasma display panel (PDP) is a flat-panel display device that uses plasma phenomena. When the voltage applied to two electrodes separated from each other is greater than a certain value in a non-vacuum atmosphere, a discharge will occur ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J17/49H01J17/04H01J17/20H01J11/00C09K11/08C09K11/59C09K11/64C09K11/77C09K11/78C09K11/80H01J1/63H01J11/12H01J11/22H01J11/24H01J11/26H01J11/34H01J11/42H01J11/50
CPCC09K11/778H01J1/63C09K11/595C09K11/643H01J11/12H01J11/42C09K11/7774H01J11/50
Inventor 崔瑞永
Owner SAMSUNG SDI CO LTD