PLASMA DISPLAY AND METHOD FOR PRODUCING PHOSPHOR USED THEREIN

Title:

PLASMA DISPLAY AND METHOD FOR PRODUCING PHOSPHOR USED THEREIN

Document Type and Number:

WIPO Patent Application WO/2005/031785

Kind Code:

A1

Abstract:

Disclosed is a plasma display wherein luminance, life and reliability of the PDP are improved by preventing deterioration of the phosphor layers. Also disclosed is a method for producing a phosphor used in such a plasma display. The plasma display comprises a plasma display panel wherein a plurality of discharge cells and phosphor layers (110R, 110G, 110B) of colors corresponding to the respective discharge cells are arranged and the phosphor layers (110R, 110G, 110B) emit light when excited by ultraviolet light. The green phosphor layer (110G) contains a green phosphor composed of Zn₂SiO₄:Mn, and at least the ratio of zinc (Zn) to silicon (Si) near the surface is 2/1 to 2.09/1. The green phosphor is positively or zero charged.

Inventors:

HORIKAWA KEIJI
AOKI MASAKI
SUGIMOTO KAZUHIKO
MIYAMAE YUICHIRO
HIBINO JUNICHI
TANAKA YOSHIKI
SETOGUCHI HIROSHI

Application Number:

PCT/JP2004/014431

Publication Date:

April 07, 2005

Filing Date:

September 24, 2004

Export Citation:

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Assignee:

MATSUSHITA ELECTRIC IND CO LTD (JP)
HORIKAWA KEIJI
AOKI MASAKI
SUGIMOTO KAZUHIKO
MIYAMAE YUICHIRO
HIBINO JUNICHI
TANAKA YOSHIKI
SETOGUCHI HIROSHI

International Classes:

C09K11/08; C09K11/54; C09K11/59; C09K11/77; C09K11/78; C09K11/79; H01J9/227; H01J11/12; H01J11/22; H01J11/24; H01J11/26; H01J11/34; H01J11/42; (IPC1-7): H01J11/02; H01J9/227; C09K11/08; C09K11/59

Foreign References:

JP2003183649A	2003-07-03
JP2001236893A	2001-08-31
JPH1186735A	1999-03-30
JP2001234165A	2001-08-28
JPH06145659A	1994-05-27
JPH02283791A	1990-11-21
JPS54145386A	1979-11-13

Other References: