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Plasma display panel comprising a terbium(III)-activated fluorescent substance

A technology for plasma and fluorescent substances, which is applied in the field of Ming Dynasty and can solve the problems of activating fluorescent substances with low y-value yellow-green spots and the like

Inactive Publication Date: 2009-08-05
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Tb 3+ The larger disadvantage of activated phosphors is their yellow-green dots with low y values, where y<0.62

Method used

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  • Plasma display panel comprising a terbium(III)-activated fluorescent substance

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Deposition of PrPO in a plasma cell on a carrier plate 2 with ribbed structures 12 4 The green color filter layer 14 , which will subsequently become the green-emitting color segment of the fluorescent layer 9 . Next, deposit (Y 0.7 Gd 0.2 )BO 3 :Tb 0.1 As a green-emitting fluorescent substance. Then use Y respectively 2 o 3 :Eu or BaMgAl 10 o 17 :Eu is used as a fluorescent substance to establish red and blue color segments. Using the carrier plate 2 and the front plate 1, and having a xenon gas mixture as a UV light-generating component, a plasma display panel with an improved color point for green pixels is formed.

[0026] The color point (x, y) of the green sub-pixel in the plasma display panel is x=0.323, y=0.626. By comparison, without PrPO 4x The color point (x, y) of the green sub-pixel of the plasma display panel corresponding to the green color filter layer 14 is x=0.331, y=0.584.

Embodiment 2

[0028] Use only (Y x Gd 1-x-y ) 2 SiO 5 :Tb y , where y=0.05 was used as the green-emitting fluorescent substance, and a plasma display panel similar to that described in Example 1 was produced.

[0029] The color point (x, y) of the green sub-pixel in the plasma display panel is x=0.315, y=0.638. By comparison, without PrPO 4 The color point (x, y) of the green sub-pixel of the plasma display panel corresponding to the green color filter layer 14 is x=0.335, y=0.615.

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Abstract

The invention relates to plasma display panels with a segmented fluorescent layer ( 9 ), in which green color filter layers ( 14 ) of Pr3+-containing materials of green-emitting color segments are deposited between the fluorescent layer ( 9 ) and the carrier plate ( 2 ), which improve the color dot of the green light which is emitted by the Tb3+-activated fluorescent substance.

Description

technical field [0001] The invention relates to a plasma display panel equipped with a front plate with a glass plate on which a dielectric layer and a protective layer are deposited, and a carrier plate covered with a light-emitting material containing a red-emitting fluorescent substance. Red-emitting color segment, blue-emitting color segment of blue-emitting fluorescent substance, and green-emitting Tb 3+ Covered by a segmented phosphor layer that activates the green-emitting color segments of the phosphor, the display panel has a rib-like structure that divides the space between the front plate and the carrier plate into gas-filled plasma cells, on the front plate and the carrier plate Has one or more electrode arrays for generating a silent discharge in the plasma cell. Background technique [0002] Plasma display panels produce high-resolution color images with large display panel diagonals and compact construction. The plasma display panel has a hermetically sealed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J17/49G02B5/20C09K11/77
CPCC09K11/7777C09K11/7771C09K11/778H01J2211/42C09K11/777C09K11/7774C09K11/77742H01J11/44
Inventor T·朱斯特W·迈尔
Owner KONINK PHILIPS ELECTRONICS NV