CN102203896A

CN102203896A - Light-emitting laminate

Info

Publication number: CN102203896A
Application number: CN2009801437450A
Authority: CN
Inventors: 植木明; 加藤裕三; 稻垣彻; 山内正人; 野口诚司
Original assignee: Ube Chemical Industries Co Ltd
Current assignee: Ube Chemical Industries Co Ltd; Ube Material Industries Ltd
Priority date: 2008-08-29
Filing date: 2009-08-28
Publication date: 2011-09-28
Anticipated expiration: 2029-08-28
Also published as: KR101573104B1; CN102203896B; WO2010024389A1; KR20110053375A

Abstract

A light-emitting laminate wherein a phosphor layer composed of a phosphor which emits visible light when excited by ultraviolet light having a wavelength within the range of 230-260 nm is formed on a base. The light-emitting laminate is characterized in that (1) a wavelength conversion layer composed of a sintered magnesium oxide powder which emits ultraviolet light having a peak within the wavelength range of 230-260 nm when excited by ultraviolet light produced by Xe gas discharge is formed under the phosphor layer; (2) a sintered magnesium oxide powder which emits ultraviolet light having a peak within the wavelength range of 230-260 nm when excited by ultraviolet light produced by Xe gas discharge is added into the phosphor layer; or (3) a phosphor protective layer composed of a sintered magnesium oxide powder which emits ultraviolet light having a peak within the wavelength range of 230-260 nm when excited by ultraviolet light produced by Xe gas discharge is formed on the phosphor layer.

Description

The photism laminated body

Technical field

The present invention relates to be formed with on matrix the photism laminated body of luminescent coating, described luminescent coating comprises by Xe gas discharge and the ultraviolet light that produces is excited and send the fluorophor of visible light.

Background technology

As being combined in photism laminated body that is formed with luminescent coating (described luminescent coating comprises by Xe gas discharge and the ultraviolet light that produces is excited and send the fluorophor of visible light) on the matrix and the discharge gas that comprises Xe gas, and come excited fluophor to send the visible light light-emitting device of visible light by the ultraviolet light that produces by Xe gas discharge, known AC plasma display panel (below be also referred to as AC type PDP), Xe lamp.The resonance line (wavelength 146nm) and the Xe that comprise Xe in the ultraviolet light that produces by the discharge of Xe gas ₂Molecular ray (wavelength 172nm).

The backplate of discharge space that AC type PDP is filled with the discharge gas that comprises Xe gas by front panel and clamping as picture display face and subtend configuration constitutes.In AC type PDP, backplate normally is formed with the photism laminated body of luminescent coating on the dielectric layer surface of matrix and bulkhead sides, wherein will comprise substrate (being generally glass plate), the addressing electrode that forms on the substrate (address electrode), coat the dielectric layer of addressing electrode and the laminated body of the dividing plate that on dielectric layer, forms as matrix.With regard to the luminescent coating of backplate, utilize dividing plate to be separated into the luminescent coating of three looks of blue-light-emitting fluorescent material layer, green emitting luminescent coating and red light-emitting phosphor layer, the blueness, green, the red visible light that send by the fluorophor that excites luminescent coating of all kinds make up display image.

The Xe lamp usually like this constitutes: with tubular glass or glass framework as matrix, side is formed with in the light-emitting component of luminescent coating within it, is filled with discharge gas.In the Xe lamp, light-emitting component is the photism laminated body.The luminescent coating of light-emitting component is formed by the phosphor blends that blue-light-emitting fluorescent material, green emitting fluorophor and red light-emitting phosphor are mixed usually.

As photism laminated body used in AC type PDP or the Xe lamp, the laminated body of known following formation.

Following content is disclosed in the patent documentation 1: under the luminescent coating of the photism laminated body that AC type PDP uses, formation comprises fluorine-containing magnesian layer, for this fluorine-containing magnesium oxide, the magnesium oxide purity that contains fluorine with the scope of 0.01～10 quality % be more than the 99.8 quality % and the BET specific area at 0.1～30m ²In the scope of/g.According to this patent documentation 1, think for fluorine-containing magnesium oxide, during by the ultraviolet excitation of generation by the discharge of Xe gas, be emitted in the ultraviolet light that has the peak in the wave-length coverage of 220～270nm, the ultraviolet light that will pass through luminescent coating is transformed to the ultraviolet light of the wave-length coverage of 220～270nm, shine luminescent coating once more, thus the fluorophor of excited fluophor layer and improve the luminosity of luminescent coating.

Following content is disclosed in the patent documentation 2: add being excited by the ultraviolet light that is produced by the discharge of Xe gas and when being emitted in the magnesium oxide crystalline solid of the ultraviolet light that has the peak in the wave-length coverage of 230～250nm in the luminescent coating of AC type PDP, the ultraviolet light that utilization is discharged by the magnesium oxide crystalline solid, fluorophor in also can the excited fluophor layer, thereby brightness improves.

Disclose in the patent documentation 3 and on the luminescent coating of AC type PDP, formed the fluorophor protective layer that comprises magnesium oxide powder.Following record is arranged in this patent documentation 3: the fluorophor protective layer is owing to the deterioration that prevents to collide because of ion the fluorophor that causes, thereby the effect with prolongation phosphor lifetime.

The prior art document

Patent documentation

Patent documentation 1: TOHKEMY 2008-10403 communique

Patent documentation 2: TOHKEMY 2008-171670 communique

Patent documentation 3: TOHKEMY 2003-297250 communique

Summary of the invention

The problem that invention will solve

The object of the present invention is to provide the high novel light-emitting laminated body of luminosity, this photism laminated body can be advantageously used in the ultraviolet light of utilization generation by the discharge of Xe gas so that the visible light light-emitting device that visible light sends.

Solve the means of problem

The invention reside in the photism laminated body, it is the photism laminated body that is formed with luminescent coating on matrix via wavelength conversion layer,

Described wavelength conversion layer contains by Xe gas discharge and the ultraviolet light that produces is excited and be emitted in the ultraviolet light that has the peak in the wave-length coverage of 230～260nm, be selected from least a magnesia roast powder in following (1)～(4),

Described luminescent coating contains the luminous fluorophor that is demonstrated visible light by the ultraviolet excitation in the wave-length coverage that is in 230～260nm.

(1) contains the chloride magnesia roast powder of chlorine with the scope of 0.005～10 quality %.

(2) contain the magnesia roast powder that contains zinc of zinc with the scope of 0.1～30 quality %.

(3) mixture of powders of γ type alumina powder and magnesium oxide source powder is burnt till and aluminium content at the magnesia roast powder that contains aluminium of the scope of 2～38 quality %.

(4) with respect to 100 moles in magnesium, amount with 0.01～24 mole scope contains fluorine, and, contain the magnesia roast powder that contains fluorine and assistant metal of at least a assistant metal in alkaline-earth metal, rare earth metal, aluminium, zinc and the tin that is selected from beyond alkali metal, the demagging with the amount of 0.01～30 mole scope with respect to 100 moles in magnesium.

The present invention also is the fluorophor powder composition, and this fluorophor powder composition comprises:

By Xe gas discharge and the ultraviolet light that produces is excited and be emitted in the ultraviolet light that has the peak in the wave-length coverage of 230～260nm, be selected from least a magnesia roast powder in following (1)～(5); With

Demonstrate the luminous fluorophor powder of visible light by the ultraviolet excitation in the wave-length coverage that is in 230～260nm,

The content ratio of described magnesia roast powder and described fluorophor powder is: with respect to fluorophor powder 1 mass parts, the amount of magnesia roast powder is the scope of 0.001～0.080 mass parts.

(1) contains the fluorine-containing magnesia roast powder of fluorine with the scope of 0.01～10 quality %.

(2) contain the chloride magnesia roast powder of chlorine with the scope of 0.005～10 quality %.

(3) contain the magnesia roast powder that contains zinc of zinc with the scope of 0.1～30 quality %.

(4) mixture of powders of γ type alumina powder and magnesium oxide source powder is burnt till and aluminium content at the magnesia roast powder that contains aluminium of the scope of 2～38 quality %.

(5) with respect to 100 moles in magnesium, amount with 0.01～24 mole scope contains fluorine, and, contain the magnesia roast powder that contains fluorine and assistant metal of at least a assistant metal in alkaline-earth metal, rare earth metal, aluminium, zinc and the tin that is selected from beyond alkali metal, the demagging with the amount of 0.01～30 mole scope with respect to 100 moles in magnesium.

The present invention also is the photism laminated body, and it is the photism laminated body that is formed with the luminescent coating that comprises the fluorophor powder composition on matrix,

Described fluorophor powder composition comprises:

The present invention also is the photism laminated body, the fluorophor protective layer that this photism laminated body comprises the luminescent coating on matrix, this matrix and forms on this luminescent coating,

Described luminescent coating comprises the luminous fluorophor that is demonstrated visible light by the ultraviolet excitation in the wave-length coverage that is in 230～260nm,

Described fluorophor protective layer comprises by Xe gas discharge and the ultraviolet light that produces is excited and be emitted in the ultraviolet light that has the peak in the wave-length coverage of 230～260nm, be selected from least a magnesia roast powder in following (1)～(5).

The invention effect

From the data shown in the aftermentioned embodiment as can be known, compare with the laminated body that on matrix, only is formed with luminescent coating, for the photism laminated body that is provided with luminescent coating via wavelength conversion layer of the present invention, (be equivalent to Xe by ultraviolet light (resonance line that is equivalent to Xe) and the ultraviolet light of wavelength 172nm of wavelength 146nm ₂Molecular ray) cause excite and the luminosity of the visible light that sends significantly improves.Therefore, described photism laminated body can be advantageously used for the backplate of AC type PDP and the light-emitting component of Xe lamp.

From the data shown in the aftermentioned embodiment as can be known, compare with the fluorophor powder monomer, with regard to the fluorophor powder composition that comprises fluorophor powder and magnesia roast powder of the present invention, (be equivalent to Xe by ultraviolet light (resonance line that is equivalent to Xe) and the ultraviolet light of wavelength 172nm of wavelength 146nm ₂Molecular ray) cause excite and the luminosity of the visible light that sends significantly improves.Therefore, the described photism laminated body that is formed with the luminescent coating that comprises the fluorophor powder composition can be advantageously used for the backplate of AC type PDP and the light-emitting component of Xe lamp.

From the data shown in the aftermentioned embodiment as can be known; with the fluorophor protective layer by by by Xe gas discharge and the ultraviolet excitation that produces does not show that the photism laminated body in the past that luminous magnesium oxide powder forms compares; with regard to the photism laminated body that is formed with the fluorophor protective layer on luminescent coating of the present invention, the luminosity of luminescent coating can maintain high level for a long time.Therefore, described photism laminated body can be advantageously used for the backplate of AC type PDP and the light-emitting component of Xe lamp.

Embodiment

[magnesia roast powder]

In photism laminated body of the present invention, can use at least a magnesia roast powder that is selected from following (1)～(5).

The fluorine content of above-mentioned fluorine-containing magnesia roast powder is preferably in the scope of 0.03～5 quality %, in the scope particularly preferably in 0.03～3 quality %.

Can in the presence of the fluorine source or under fluoro-gas atmosphere, make fluorine-containing magnesia roast powder by burning till the magnesium oxide source powder.

As the magnesium oxide source powder, can use magnesium oxide powder and pass through the magnesium compound powder (still, except the magnesium chloride powder) that heating generates magnesium oxide powder.As the example of magnesium compound powder, can enumerate magnesium hydroxide powder, basic carbonate magnesium dust, magnesium nitrate powder and magnesium acetate powder.The preferred magnesium oxide powder of magnesium oxide source powder.The preferred especially purity of magnesium oxide powder is that 99.95 quality % are above, the BET specific area is at 5～150m ²The scope of/g is (particularly preferably in 7～50m ²The scope of/g), the magnesium oxide powder that utilizes gas phase synthesis method to make.Gas phase synthesis method is meant, the magnesium metal steam is contacted in gas phase with oxygen-containing gas, makes the magnesium metal vapor-phase oxidation make the method for magnesium oxide powder.

As the fluorine source, can use magnesium fluoride powder and ammonium fluoride powder.The preferred purity in fluorine source is more than the 99 quality %.When in the presence of the fluorine source, when carrying out the burning till of raw materials of magnesium oxide powder, preferably before burning till, raw materials of magnesium oxide powder and fluorine source are mixed equably.

As fluoro-gas, can use hydrogen fluoride gas, with ammonium fluoride, fluorinated organic compound (CF ₄, C ₂F ₆, C ₃F ₈Deng) or magnesium fluoride powder heating gas that its gasification is formed.

In the presence of the fluorine source and the firing temperature of magnesium oxide source powder under the fluoro-gas atmosphere be preferably more than 850 ℃ more preferably 900～1500 ℃, be preferably 1000～1500 ℃ scope especially.Firing time was preferably more than 10 minutes, more preferably 10 minutes～2 hours, was preferably 20 minutes especially～2 hours scope.For example burning till of magnesium oxide source powder can be carried out in the following way: under normal pressure, under the condition of 100～500 ℃/hour of programming rates, be warming up to above-mentioned firing temperature, then, after burning till above-mentioned firing time, under the condition of 100～500 ℃/hour of cooling rates, be cooled to room temperature.

The chlorinity of above-mentioned chloride magnesia roast powder is preferably in the scope of 0.01～10 quality %, particularly preferably in the scope of 0.1～10 quality %.

Can in the presence of the chlorine source or under chlorine-containing gas atmosphere, make chloride magnesia roast powder by burning till the magnesium oxide source powder.

As the magnesium oxide source powder, can use magnesium oxide powder and pass through the magnesium compound powder (still, except the magnesium chloride powder) that heating generates magnesium oxide powder.As the example of magnesium compound powder, can enumerate magnesium hydroxide powder, basic carbonate magnesium dust, magnesium nitrate powder and magnesium acetate powder.The preferred magnesium oxide powder of magnesium oxide source powder.The preferred especially purity of magnesium oxide powder is that 99.95 quality % are above, the BET specific area is at 5～150m ²The scope of/g is (particularly preferably in 7～50m ²The scope of/g), the magnesium oxide powder that utilizes gas phase synthesis method to make.

As the chlorine source, can use magnesium chloride powder and ammonium chloride powder.The preferred purity in chlorine source is more than the 99.0 quality %.When in the presence of the chlorine source, when carrying out the burning till of raw materials of magnesium oxide powder, preferably before burning till, raw materials of magnesium oxide powder and chlorine source are mixed equably.

As chlorine-containing gas, can use hydrogen chloride gas or with ammonium chloride powder, magnesium chloride powder or chlorine-containing organic compounds (CHCl ₃, CCl ₄Deng) heating its gasification is formed gas.

In the presence of the chlorine source and the firing temperature of magnesium oxide source powder under the chlorine-containing gas atmosphere be preferably more than 850 ℃ more preferably 900～1500 ℃, be preferably 1000～1500 ℃ scope especially.Firing time was preferably more than 10 minutes, more preferably 10 minutes～2 hours, was preferably 20 minutes especially～2 hours scope.

The zinc content of the above-mentioned magnesia roast powder that contains zinc is particularly preferably in the scope of 0.5～7 quality %.

Can then burn till the gained mixture of powders and make the magnesia roast powder that contains zinc by magnesium oxide source powder and zinc oxide source powder are obtained mixture of powders.

As the magnesium oxide source powder, can use magnesium oxide powder or pass through the magnesium compound powder that heating generates magnesium oxide powder.The preferred magnesium oxide powder of magnesium oxide source powder.The preferred especially purity of magnesium oxide powder is that 99.95 quality % are above, the BET specific area is at 5～150m ²The scope of/g is (particularly preferably in 7～50m ²The scope of/g), the magnesium oxide powder that utilizes gas phase synthesis method to make.

As the zinc oxide source powder, can use Zinc oxide powder and pass through the zinc compound powder that heating generates Zinc oxide powder.As the example of zinc compound powder, can enumerate zinc hydroxide powder, zinc carbonate powder, zinc nitrate powder, zinc acetate powder and zinc oxalate powder.The preferred Zinc oxide powder of zinc oxide source powder.The purity of zinc oxide source powder is preferably more than the 99.0 quality %.

The firing temperature of the mixture of powders of magnesium oxide source powder and zinc oxide source powder is preferably more than 850 ℃, more preferably 900～1500 ℃, be preferably 1000～1500 ℃ scope especially.Firing time was preferably more than 10 minutes, more preferably 10 minutes～2 hours, was preferably 20 minutes especially～2 hours scope.

The aluminium content of the above-mentioned magnesia roast powder that contains aluminium is preferably in the scope of 5～35 quality %.

Can then burn till the gained mixture of powders and make the magnesia roast powder that contains aluminium by γ type alumina powder and magnesium oxide source powder are obtained mixture of powders.

The purity of γ type alumina powder is preferably more than the 99.0 quality %.

The firing temperature of the mixture of powders of γ type alumina powder and magnesium oxide source powder is preferably more than 850 ℃, more preferably 900～1500 ℃, be preferably 1000～1500 ℃ scope especially.Firing time was preferably more than 10 minutes, more preferably 10 minutes～2 hours, was preferably 20 minutes especially～2 hours scope.

In the above-mentioned magnesia roast powder that contains fluorine and assistant metal, with respect to 100 moles in magnesium, fluorine content is preferably 0.02～12 mole scope, particularly preferably in 0.02～5 mole scope.With respect to 100 moles in magnesium, the content of assistant metal is preferably 0.025～25 mole scope, particularly preferably in 0.1～5 mole scope.In addition, with respect to 1 mole in fluorine, the content of assistant metal is preferably 0.25～50 mole scope, particularly preferably in 0.4～30 mole scope.

As alkali-metal example, can enumerate lithium, sodium and potassium as assistant metal.As the example of alkaline-earth metal, can enumerate calcium and barium.As the example of rare earth metal, can enumerate yttrium, cerium and gadolinium.Assistant metal can be used alone, also can be also with two or more.

The magnesia roast powder that contains fluorine and assistant metal can be made by the following method: the fluoride powder of magnesium oxide source powder and assistant metal is mixed, obtain with respect to 100 moles in the magnesium in the magnesium oxide source powder, the amount of fluoride is that 0.05～30 mole scope (is preferably 0.1～25 mole scope, be preferably 0.2～15 mole scope especially) amount contain the mixture of powders of fluoride, then burn till the mixture of powders of gained.

Can use the oxide powder of assistant metal or be converted into the compound powder (except the fluoride powder) of the assistant metal of metal oxide and be selected from magnesium fluoride powder and at least a fluoride powder of ammonium fluoride powder replaces the fluoride powder of assistant metal by heating.Promptly, the magnesia roast powder that contains fluorine and assistant metal can be made by the following method: with the magnesium oxide source powder, the oxide powder of assistant metal or fluoride compound powder in addition by heating the assistant metal that generates metal oxide, mix with at least a fluoride powder that is selected from magnesium fluoride powder and ammonium fluoride powder, obtain comprising the mixture of powders of assistant metal and fluoride, wherein with respect to 100 moles in the magnesium in the mixed-powder, the amount of assistant metal is 0.05～30 mole a scope, and, with respect to 1 mole of assistant metal, the amount of the fluoride in the fluoride powder is the amount of 0.1～10 mole scope, then burns till the mixture of powders of gained.

The compound powder and the preferred purity of fluoride powder that generate the oxide powder of assistant metal with the oxide powder of the fluoride powder of the assistant metal of magnesium oxide source powder, assistant metal, by heating are more than the 99.0 quality %.As the example of compound powder that generates the oxide powder of assistant metal by heating, can enumerate hydroxide powder, carbonate powder, bicarbonate powder, nitrate powder, acetate powder, the oxalates powder of assistant metal.

The mixture of powders of the fluoride powder of magnesium oxide source powder and assistant metal; And, the oxide powder of magnesium oxide source powder, assistant metal or generate the compound powder of oxide powder of assistant metal by heating and the firing temperature of the mixture of powders of fluoride powder is preferably more than 850 ℃, more preferably 900～1500 ℃, be preferably 1000～1500 ℃ scope especially.Firing time was preferably more than 10 minutes, more preferably 10 minutes～2 hours, was preferably 20 minutes especially～2 hours scope.

The preferred BET specific area of magnesia roast powder is at 0.1～30m ²The scope of/g is particularly preferably in 0.2～12m ²The scope of/g.

[fluorophor powder]

Used fluorophor powder comprises by at the ultraviolet excitation of the wave-length coverage of 230～260nm and demonstrate the luminous fluorophor of visible light in the photism laminated body of the present invention.As fluorophor, can use blue-light-emitting fluorescent material, green emitting fluorophor and red light-emitting phosphor.

As the example of blue-light-emitting fluorescent material, can enumerate the basic composition formula by CaMgSi ₂O ₆: Eu ²⁺, (Ca, Sr) MgSi ₂O ₆: Eu ²⁺, Sr ₃MgSi ₂O ₈: Eu ²⁺, and BaMgAl ₁₀O ₁₇: Eu ²⁺The blue-light-emitting fluorescent material of expression.As the example of green emitting fluorophor, can enumerate the basic composition formula by Zn ₂SiO ₄: Mn ²⁺, (Ba, Sr, Mg) O α Al ₂O ₃: Mn ²⁺, YBO ₃: Tb ³⁺, (Y, Gd) BO ₃: Tb ³⁺, BaAl ₁₂O ₁₉: Mn ²⁺And BaMgAl ₁₀O ₁₇: Eu ²⁺, Mn ²⁺The fluorophor of expression.As the example of red light-emitting phosphor, can enumerate the basic composition formula by YBO ₃: Eu ³⁺, (Y, Gd) BO ₃: Eu ³⁺, Y ₂O ₃: Eu ³⁺(Y, Gd) ₂O ₃: Eu ³⁺The fluorophor of expression.Fluorophor powder can be used alone, also can be also with two or more.

[being provided with the photism laminated body of luminescent coating via wavelength conversion layer]

The thickness of wavelength conversion layer preferably in the scope of 0.5～10 μ m, more preferably in the scope of 1.0～10 μ m.Wavelength conversion layer can form in the following way: utilize silk screen print method or used the rubbing method of reverse coating machine, curtain formula coating machine, chill coating machine, slit coating machine various coating machines such as various coating machines such as (slot coater), the pastel that is dispersed with magnesia roast powder is applied on the matrix drying coating film.

The thickness of luminescent coating preferably in the scope of 0.1～30 μ m, more preferably in the scope of 1.0～30 μ m.Luminescent coating can form in the following way: utilize silk screen print method or used the rubbing method of various coating machines such as reverse coating machine, curtain formula coating machine, chill coating machine, slit coating machine etc., the pastel that is dispersed with fluorophor powder is applied on the wavelength conversion layer drying coating film.

As matrix, can use glass tube, glass substrate etc. to be used as the material of matrix of the light-emitting component of the backplate of AC type PDP and Xe lamp.

The photism laminated body of using as the backplate of AC type PDP can followingly constitute: will comprise substrate (being generally glass plate), in the laminated body of the addressing electrode that forms on the substrate, the dielectric layer that coats addressing electrode, the dividing plate that on dielectric layer, forms as matrix, on dielectric layer surface and bulkhead sides, form wavelength conversion layer and luminescent coating in order; Perhaps, make the dielectric layer of matrix disperse magnesia roast powder and become wavelength conversion layer, on wavelength conversion laminar surface and bulkhead sides, form wavelength conversion layer and luminescent coating in order.Backplate with wavelength conversion layer of said structure has been that above-mentioned patent documentation 1 (TOHKEMY 2008-10403 communique) is disclosed.

In the backplate of AC type PDP, luminescent coating is separated into the tri-color phosphor layer of blue-light-emitting fluorescent material layer, green emitting luminescent coating and red light-emitting phosphor layer usually by dividing plate.Wavelength conversion layer can be formed uniformly respectively under these tri-color phosphor layers, also can coordinate for the equilibrium phase of the luminosity that makes each color, and only be provided with under one or two luminescent coating in the tri-color phosphor layer.

[being formed with the photism laminated body of the luminescent coating that comprises fluorophor powder composition (this fluorophor powder composition contains fluorophor powder and magnesia roast powder)]

The thickness of luminescent coating preferably in the scope of 0.1～40 μ m, more preferably in the scope of 1.0～40 μ m.

The magnesia roast powder of the fluorophor powder composition of formation luminescent coating and the cooperation ratio of fluorophor powder are following ratio: with respect to fluorophor powder 1 mass parts, the amount of magnesia roast powder is the scope of 0.001～0.080 mass parts, is preferably the scope of 0.05～0.080 mass parts.

The fluorophor powder composition can be by making according to aforementioned proportion mixed oxidization magnesium roast powder and fluorophor powder.Magnesia roast powder carried out according to wet method with mixing preferably of fluorophor powder.

Luminescent coating can form in the following way: utilize silk screen print method or used the rubbing method of various coating machines such as reverse coating machine, curtain formula coating machine, chill coating machine, slit coating machine, the pastel that is dispersed with the fluorophor powder composition is applied on the matrix drying coating film.

[on luminescent coating, being formed with the photism laminated body of fluorophor protective layer]

The thickness of luminescent coating preferably in the scope of 0.1～30 μ m, more preferably in the scope of 1.0～30 μ m.Luminescent coating can form in the following way: utilize silk screen print method or used the rubbing method of various coating machines such as reverse coating machine, curtain formula coating machine, chill coating machine, slit coating machine, the pastel that is dispersed with fluorophor powder is applied on the matrix drying coating film.

The thickness of fluorophor protective layer preferably in the scope of 0.5～10 μ m, more preferably in the scope of 1.0～10 μ m.The fluorophor protective layer can form in the following way: utilize silk screen print method or used the rubbing method of various coating machines such as reverse coating machine, curtain formula coating machine, chill coating machine, slit coating machine; the pastel that is dispersed with magnesia roast powder is applied on the luminescent coating drying coating film.

Photism laminated body as the backplate of AC type PDP can followingly constitute: will comprise substrate (being generally glass plate), the addressing electrode that forms on the substrate, coat the dielectric layer of addressing electrode and the laminated body of the dividing plate that on dielectric layer, forms as matrix, on dielectric layer surface and bulkhead sides, form luminescent coating and fluorophor protective layer in order.In the backplate of AC type PDP, luminescent coating is separated into the tri-color phosphor layer of blue-light-emitting fluorescent material layer, green emitting luminescent coating and red light-emitting phosphor layer usually by dividing plate.The fluorophor protective layer can be formed uniformly respectively on these tri-color phosphor layers, also can only be arranged on by being easy to cause on formed one or two luminescent coating of fluorophor that luminosity reduces.

Photism laminated body as the light-emitting component of Xe lamp can followingly constitute: glass tube or glass framework as matrix, are formed luminescent coating and fluorophor protective layer in order in this matrix inboard.

Embodiment

Magnesia roast powder (the MgCl that [synthesis example 1] is chloride ₂Synthesizing MgO)

With magnesium oxide powder (2000A, the マテリア Le ズ of space portion (strain) system, the purity: 99.98 quality %, BET specific area: 8.7m of utilizing gas phase synthesis method to make ²/ g) 250g and magnesium chloride powder (purity: 99%) 500g mixes, and obtains mixture of powders.Put into the gained mixture of powders in the alumina crucible and add a cover, put it in the electric furnace, be warming up to 1300 ℃, then under this temperature, burnt till 30 minutes with 240 ℃/hour programming rates.Then, with 240 ℃/hour cooling rate temperature in the stove is cooled to room temperature.The gained burned material is 0.57m for the BET specific area ²/ g, chlorinity are the chloride magnesia roast powder of 0.8 quality %.Can confirm behind the ultraviolet light of chloride magnesia roast powder illumination wavelength 146nm of gained and wavelength 172nm, be emitted in the ultraviolet light that has the peak in the wave-length coverage of 230～260nm.

[synthesis example 2] contains magnesia roast powder (ZnOMgO) synthetic of zinc

(purity: 99.9%) 20g mixes, and obtains mixture of powders with the magnesium oxide powder that utilizes gas phase synthesis method to make (2000A, the マテリア Le ズ of space portion (strain) system) 500g and Zinc oxide powder.Put into the gained mixture of powders in the alumina crucible and add a cover, put it in the electric furnace, be warming up to 1300 ℃, then under this temperature, burnt till 30 minutes with 240 ℃/hour programming rates.Then, with 240 ℃/hour cooling rate temperature in the stove is cooled to room temperature.The gained burned material is 5.73m for the BET specific area ²/ g, zinc content are the magnesia roast powder that contains zinc of 3.09 quality %.Can confirm when gained contains the ultraviolet light of the magnesia roast powder illumination wavelength 146nm of zinc and wavelength 172nm, be emitted in the ultraviolet light that has the peak in the wave-length coverage of 230～260nm.

[synthesis example 3] contains the magnesia roast powder (γ-Al of aluminium ₂O ₃Synthesizing MgO)

Magnesium oxide powder (2000A, the マテリア Le ズ of space portion (strain) system) 500g and γ type acidifying aluminium powder (Sumitomo Chemical (strain) system, the high-purity alpha-alumina AKP-G015) 26.38g that utilize gas phase synthesis method to make are mixed, obtain mixture of powders.Put into the gained mixture of powders in the alumina crucible and add a cover, put it in the electric furnace, be warming up to 1300 ℃, then under this temperature, burnt till 30 minutes with 240 ℃/hour programming rates.Then, with 240 ℃/hour cooling rate temperature in the stove is cooled to room temperature.The gained burned material is 6.07m for the BET specific area ²/ g, aluminium content are the magnesia roast powder that contains aluminium of 2.48 quality %.Can confirm when gained contains the ultraviolet light of the magnesia roast powder illumination wavelength 146nm of aluminium and wavelength 172nm, be emitted in the ultraviolet light that has the peak in the wave-length coverage of 230～260nm.

[synthesis example 4] contains magnesia roast powder (LiFMgO) synthetic of lithium, fluorine

(purity: 99.9 quality %) 0.0386g mixes, and obtains mixture of powders with the magnesium oxide powder that utilizes gas phase synthesis method to make (2000A, the マテリア Le ズ of space portion (strain) system) 6.0g and lithium fluoride powder.Put into the gained mixture of powders in the alumina crucible and add a cover, put it in the electric furnace, be warming up to 1200 ℃, then under this temperature, burnt till 30 minutes with 240 ℃/hour programming rates.Then, with 240 ℃/hour cooling rate temperature in the stove is cooled to room temperature.The gained burned material is: the BET specific area is 0.26m ²/ g; With respect to 100 moles in magnesium, lithium content is 0.2 mole; With respect to 100 moles in magnesium, fluorine content is 0.09 mole the magnesia roast powder that contains lithium, fluorine.Can confirm when gained contains the ultraviolet light of the magnesia roast powder illumination wavelength 146nm of lithium, fluorine and wavelength 172nm, be emitted in the ultraviolet light that has the peak in the wave-length coverage of 230～260nm.

[synthesis example 5] contains magnesia roast powder (NaFMgO) synthetic of sodium, fluorine

(purity: 99.9 quality %) 0.0625g mixes, and obtains mixture of powders with the magnesium oxide powder that utilizes gas phase synthesis method to make (2000A, the マテリア Le ズ of space portion (strain) system) 6.0g and sodium fluoride powder.Put into the gained mixture of powders in the alumina crucible and add a cover, put it in the electric furnace, be warming up to 1200 ℃, then under this temperature, burnt till 30 minutes with 240 ℃/hour programming rates.Then, with 240 ℃/hour cooling rate temperature in the stove is cooled to room temperature.The gained burned material is: the BET specific area is 0.21m ²/ g; With respect to 100 moles in magnesium, sodium content is 0.2 mole; With respect to 100 moles in magnesium, fluorine content is 0.10 mole the magnesia roast powder that contains sodium, fluorine.Can confirm when gained contains the ultraviolet light of the magnesia roast powder illumination wavelength 146nm of sodium, fluorine and wavelength 172nm, be emitted in the ultraviolet light that has the peak in the wave-length coverage of 230～260nm.

[synthesis example 6] contains magnesia roast powder (KFMgO) synthetic of potassium, fluorine

(purity: 99.9 quality %) 0.432g mixes, and obtains mixture of powders with the magnesium oxide powder that utilizes gas phase synthesis method to make (2000A, the マテリア Le ズ of space portion (strain) system) 6.0g and potassium fluoride powder.Put into the gained mixture of powders in the alumina crucible and add a cover, put it in the electric furnace, be warming up to 1200 ℃, then under this temperature, burnt till 30 minutes with 240 ℃/hour programming rates.Then, with 240 ℃/hour cooling rate temperature in the stove is cooled to room temperature.The gained burned material is: the BET specific area is 0.60m ²/ g; With respect to 100 moles in magnesium, potassium content is 0.1 mole; With respect to 100 moles in magnesium, fluorine content is 0.07 mole the magnesia roast powder that contains potassium, fluorine.Can confirm when gained contains the ultraviolet light of the magnesia roast powder illumination wavelength 146nm of potassium, fluorine and wavelength 172nm, be emitted in the ultraviolet light that has the peak in the wave-length coverage of 230～260nm.

Magnesia roast powder (the CaF of [synthesis example 7] calcic, fluorine ₂Synthesizing MgO)

(purity: 99.9 quality %) 0.0581g mixes, and obtains mixture of powders with the magnesium oxide powder that utilizes gas phase synthesis method to make (2000A, the マテリア Le ズ of space portion (strain) system) 6.0g and calcirm-fluoride powder.Put into the gained mixture of powders in the alumina crucible and add a cover, put it in the electric furnace, be warming up to 1200 ℃, then under this temperature, burnt till 30 minutes with 240 ℃/hour programming rates.Then, with 240 ℃/hour cooling rate temperature in the stove is cooled to room temperature.The gained burned material is: the BET specific area is 1.36m ²/ g; With respect to 100 moles in magnesium, calcium content is 0.5 mole; With respect to 100 moles in magnesium, fluorine content is 0.82 mole calcic, the magnesia roast powder of fluorine.In the time of can confirming the ultraviolet light to the magnesia roast powder illumination wavelength 146nm of gained calcic, fluorine and wavelength 172nm, be emitted in the ultraviolet light that has the peak in the wave-length coverage of 230～260nm.

Magnesia roast powder (the BaF of [synthesis example 8] baric, fluorine ₂Synthesizing MgO)

(purity: 99.9 quality %) 0.2610g mixes, and obtains mixture of powders with the magnesium oxide powder that utilizes gas phase synthesis method to make (2000A, the マテリア Le ズ of space portion (strain) system) 6.0g and barium fluoride powder.Put into the gained mixture of powders in the alumina crucible and add a cover, put it in the electric furnace, be warming up to 1200 ℃, then under this temperature, burnt till 30 minutes with 240 ℃/hour programming rates.Then, with 240 ℃/hour cooling rate temperature in the stove is cooled to room temperature.The gained burned material is: the BET specific area is 1.49m ²/ g; With respect to 100 moles in magnesium, barium content is 1.0 moles; With respect to 100 moles in magnesium, fluorine content is 1.91 moles baric, the magnesia roast powder of fluorine.In the time of can confirming the ultraviolet light to the magnesia roast powder illumination wavelength 146nm of gained baric, fluorine and wavelength 172nm, be emitted in the ultraviolet light that has the peak in the wave-length coverage of 230～260nm.

[synthesis example 9] contains the magnesia roast powder (AlF of aluminium, fluorine ₃Synthesizing MgO)

(purity: 99.9 quality %) 0.1250g mixes, and obtains mixture of powders with the magnesium oxide powder that utilizes gas phase synthesis method to make (2000A, the マテリア Le ズ of space portion (strain) system) 6.0g and aluminum fluoride powder.Put into the gained mixture of powders in the alumina crucible and add a cover, put it in the electric furnace, be warming up to 1300 ℃, then under this temperature, burnt till 30 minutes with 240 ℃/hour programming rates.Then, with 240 ℃/hour cooling rate temperature in the stove is cooled to room temperature.The gained burned material is: the BET specific area is 0.96m ²/ g; With respect to 100 moles in magnesium, aluminium content is 1.0 moles; With respect to 100 moles in magnesium, fluorine content is 0.47 mole the magnesia roast powder that contains aluminium, fluorine.Can confirm when gained contains the ultraviolet light of the magnesia roast powder illumination wavelength 146nm of aluminium, fluorine and wavelength 172nm, be emitted in the ultraviolet light that has the peak in the wave-length coverage of 230～260nm.

[synthesis example 10] contains the magnesia roast powder (ZnF of zinc, fluorine ₂Synthesizing MgO)

(purity: 99.9 quality %) 0.1306g mixes, and obtains mixture of powders with the magnesium oxide powder that utilizes gas phase synthesis method to make (2000A, the マテリア Le ズ of space portion (strain) system) 6.0g and zinc fluoride-tetrahydrate powder.Put into the gained mixture of powders in the alumina crucible and add a cover, put it in the electric furnace, be warming up to 1300 ℃, then under this temperature, burnt till 30 minutes with 240 ℃/hour programming rates.Then, with 240 ℃/hour cooling rate temperature in the stove is cooled to room temperature.The gained burned material is: the BET specific area is 1.29m ²/ g; With respect to 100 moles in magnesium, zinc content is 0.5 mole; With respect to 100 moles in magnesium, fluorine content is 0.03 mole the magnesia roast powder that contains zinc, fluorine.Can confirm when gained contains the ultraviolet light of the magnesia roast powder illumination wavelength 146nm of zinc, fluorine and wavelength 172nm, be emitted in the ultraviolet light that has the peak in the wave-length coverage of 230～260nm.

Magnesia roast powder (the SnF of [synthesis example 11] stanniferous, fluorine ₂Synthesizing MgO)

(purity: 99.9 quality %) 0.2334g mixes, and obtains mixture of powders with the magnesium oxide powder that utilizes gas phase synthesis method to make (2000A, the マテリア Le ズ of space portion (strain) system) 6.0g and tin fluoride powder.Put into the gained mixture of powders in the alumina crucible and add a cover, put it in the electric furnace, be warming up to 1300 ℃, then under this temperature, burnt till 30 minutes with 240 ℃/hour programming rates.Then, with 240 ℃/hour cooling rate temperature in the stove is cooled to room temperature.The gained burned material is: the BET specific area is 0.80m ²/ g; With respect to 100 moles in magnesium, tin content is 1.0 moles; With respect to 100 moles in magnesium, fluorine content is 0.07 mole stanniferous, the magnesia roast powder of fluorine.In the time of can confirming the ultraviolet light to the magnesia roast powder illumination wavelength 146nm of gained stanniferous, fluorine and wavelength 172nm, be emitted in the ultraviolet light that has the peak in the wave-length coverage of 230～260nm.

[synthesis example 12] contains the magnesia roast powder (CeF of cerium, fluorine ₃Synthesizing MgO)

(purity: 99.9 quality %) 0.1460g mixes, and obtains mixture of powders with the magnesium oxide powder that utilizes gas phase synthesis method to make (2000A, the マテリア Le ズ of space portion (strain) system) 6.0g and cerium fluoride powder.Put into the gained mixture of powders in the alumina crucible and add a cover, put it in the electric furnace, be warming up to 1300 ℃, then under this temperature, burnt till 30 minutes with 240 ℃/hour programming rates.Then, with 240 ℃/hour cooling rate temperature in the stove is cooled to room temperature.The gained burned material is: the BET specific area is 0.99m ²/ g; With respect to 100 moles in magnesium, cerium content is 1.0 moles; With respect to 100 moles in magnesium, fluorine content is 0.26 mole the magnesia roast powder that contains cerium, fluorine.Can confirm when gained contains the ultraviolet light of the magnesia roast powder illumination wavelength 146nm of cerium, fluorine and wavelength 172nm, be emitted in the ultraviolet light that has the peak in the wave-length coverage of 230～260nm.

[synthesis example 13] contains the magnesia roast powder (YF of yttrium, fluorine ₃Synthesizing MgO)

(purity: 99.9 quality %) 0.2180g mixes, and obtains mixture of powders with the magnesium oxide powder that utilizes gas phase synthesis method to make (2000A, the マテリア Le ズ of space portion (strain) system) 6.0g and yttrium fluoride powder.Put into the gained mixture of powders in the alumina crucible and add a cover, put it in the electric furnace, be warming up to 1300 ℃, then under this temperature, burnt till 30 minutes with 240 ℃/hour programming rates.Then, with 240 ℃/hour cooling rate temperature in the stove is cooled to room temperature.The gained burned material is: the BET specific area is 0.97m ²/ g; With respect to 100 moles in magnesium, yttrium content is 1.0 moles; With respect to 100 moles in magnesium, fluorine content is 1.52 moles the magnesia roast powder that contains yttrium, fluorine.Can confirm when gained contains the ultraviolet light of the magnesia roast powder illumination wavelength 146nm of yttrium, fluorine and wavelength 172nm, be emitted in the ultraviolet light that has the peak in the wave-length coverage of 230～260nm.

[synthesis example 14] contains the magnesia roast powder (GdF of gadolinium, fluorine ₃Synthesizing MgO)

(purity: 99.9 quality %) 0.0796g mixes, and obtains mixture of powders with the magnesium oxide powder that utilizes gas phase synthesis method to make (2000A, the マテリア Le ズ of space portion (strain) system) 6.0g and gadolinium fluoride powder.Put into the gained mixture of powders in the alumina crucible and add a cover, put it in the electric furnace, be warming up to 1300 ℃, then under this temperature, burnt till 30 minutes with 240 ℃/hour programming rates.Then, with 240 ℃/hour cooling rate temperature in the stove is cooled to room temperature.The gained burned material is: the BET specific area is 1.10m ²/ g; With respect to 100 moles in magnesium, gadolinium concentrations is 0.5 mole; With respect to 100 moles in magnesium, fluorine content is 0.59 mole the magnesia roast powder that contains gadolinium, fluorine.Can confirm to contain the vacuum ultraviolet (VUV) light time of the magnesia roast powder illumination wavelength 146nm and the wavelength 172nm of gadolinium, fluorine, be emitted in the ultraviolet light that has the peak in the wave-length coverage of 230～260nm to gained.

Magnesia roast powder (the MgF that [synthesis example 15] is fluorine-containing ₂Synthesizing MgO)

(purity: 99.1%) 0.05g mixes, and obtains mixture of powders with the magnesium oxide powder that utilizes gas phase synthesis method to make (2000A, the マテリア Le ズ of space portion (strain) system) 5g and magnesium fluoride powder.Put into the gained mixture of powders in the alumina crucible and add a cover, put it in the electric furnace, be warming up to 1200 ℃, then under this temperature, burnt till 30 minutes with 240 ℃/hour programming rates.Then, with 240 ℃/hour cooling rate temperature in the stove is cooled to room temperature.The gained burned material is that the BET specific area is 1.81m ²/ g, fluorine content are the fluorine-containing magnesia roast powder of 0.0496 quality %.In the time of can confirming the ultraviolet light to fluorine-containing magnesia roast powder illumination wavelength 146nm of gained and wavelength 172nm, be emitted in the ultraviolet light that has the peak in the wave-length coverage of 230～260nm.

[embodiment 1]

In isopropyl alcohol 300mL, add ethylmethylcellulose 21g, use magnetic stirrer 15 minutes, prepare the pasty state base material.In described pasty state base material, add the chloride magnesia roast powder (MgCl that synthesizes by synthesis example 1 ₂MgO) 2.5g uses the deaeration machine to mix 7 minutes, prepares chloride magnesia roast powder pastel.In addition, in the pasty state base material of same preparation, add CaMgSi ₂O ₆: Eu ²⁺Blue irradiance fluorophor powder 2.5g uses the deaeration machine to mix 7 minutes, preparation CaMgSi ₂O ₆: Eu ²⁺The blue irradiance fluorophor powder pastel.

Use screen process press that the chloride magnesia roast powder pastel of above-mentioned preparation is applied on the quartz base plate of diameter 19.8mm, thickness 2.0mm, after drying under 70 ℃ the temperature, annealing is 1 hour under 600 ℃ temperature, forms the chloride magnesia roast layer of thickness 3 μ m.Then, use the CaMgSi of screen process press with above-mentioned preparation ₂O ₆: Eu ²⁺The blue irradiance fluorophor powder pastel is applied on the chloride magnesia roast layer, and after drying under 70 ℃ the temperature, annealing is 1 hour under 600 ℃ temperature, forms the CaMgSi of thickness 7 μ m ₂O ₆: Eu ²⁺The blue-light-emitting fluorescent material layer is formed with CaMgSi to be manufactured on the quartz base plate via the wavelength conversion layer that comprises chloride magnesia roast powder ₂O ₆: Eu ²⁺The photism laminated body of blue-light-emitting fluorescent material layer.

[embodiment 2～14]

Except using the magnesia roast powder that makes by synthesis example 2～14 to replace the chloride magnesia roast powder, operate to be manufactured on the CaMgSi that is formed with thickness 7 μ m on the quartz base plate via the wavelength conversion layer that comprises magnesia roast powder of thickness 3 μ m equally ₂O ₆: Eu ²⁺The photism laminated body of blue-light-emitting fluorescent material layer.

[comparative example 1]

Except not forming on the quartz base plate the wavelength conversion layer, operation similarly to Example 1 is to be manufactured on the CaMgSi that is formed with thickness 7 μ m on the quartz base plate ₂O ₆: Eu ²⁺The photism laminated body of blue-light-emitting fluorescent material layer.

[evaluation of photism laminated body]

From the luminescent coating top illumination wavelength 146nm of the photism laminated body that makes by embodiment 1～14 and comparative example 1 and the ultraviolet light of wavelength 172nm, measure the luminescent spectrum of the visible light of emitting from laminated body.The peak-peak of gained luminescent spectrum is shown in table 1 as maximum luminousing brightness.

Table 1 (luminescent coating: CaMgSi ₂O ₆: Eu ²⁺The blue-light-emitting fluorescent material layer)

Annotate) maximum luminousing brightness is that value with comparative example 1 is made as 100 relative value.

[embodiment 15～28]

Except using Ca _0.5Sr _0.5MgSi ₂O ₆: Eu ²⁺Blue irradiance fluorophor powder comes replaced C aMgSi ₂O ₆: Eu ²⁺Outside the blue irradiance fluorophor powder, operate equally, be manufactured on the Ca that is formed with thickness 7 μ m on the quartz base plate via the wavelength conversion layer of thickness 3 μ m with embodiment 1～14 _0.5Sr _0.5MgSi ₂O ₆: Eu ²⁺The photism laminated body of blue-light-emitting fluorescent material layer.

[comparative example 2]

Except not forming on the quartz base plate the wavelength conversion layer, operate equally with embodiment 15～28, be manufactured on the Ca that is formed with thickness 7 μ m on the quartz base plate _0.5Sr _0.5MgSi ₂O ₆: Eu ²⁺The photism laminated body of blue-light-emitting fluorescent material layer.

[evaluation of photism laminated body]

From the luminescent coating top illumination wavelength 146nm of the photism laminated body that makes by embodiment 15～28 and comparative example 2 and the ultraviolet light of wavelength 172nm, measure the luminescent spectrum of the visible light of emitting from laminated body.The peak-peak of gained luminescent spectrum is shown in table 2 as maximum luminousing brightness.

Table 2 (luminescent coating: Ca _0.5Sr _0.5MgSi ₂O ₆: Eu ²⁺The blue-light-emitting fluorescent material layer)

Annotate) maximum luminousing brightness is that value with comparative example 2 is made as 100 relative value.

[embodiment 29～42]

Except using BaMgAl ₁₀O ₁₇: Eu ²⁺Blue irradiance fluorophor powder comes replaced C aMgSi ₂O ₆: Eu ²⁺Outside the blue irradiance fluorophor powder, operate equally, be manufactured on the BaMgAl that is formed with thickness 7 μ m on the quartz base plate via the wavelength conversion layer of thickness 3 μ m with embodiment 1～14 ₁₀O ₁₇: Eu ²⁺The photism laminated body of blue-light-emitting fluorescent material layer.

[comparative example 3]

Except not forming on the quartz base plate the wavelength conversion layer, operate equally with embodiment 29～42, be manufactured on the BaMgAl that is formed with thickness 7 μ m on the quartz base plate ₁₀O ₁₇: Eu ²⁺The photism laminated body of blue-light-emitting fluorescent material layer.

[evaluation of photism laminated body]

From the luminescent coating top illumination wavelength 146nm of the photism laminated body that makes by embodiment 29～42 and comparative example 3 and the ultraviolet light of wavelength 172nm, measure the luminescent spectrum of the visible light of emitting from laminated body.The peak-peak of gained luminescent spectrum is shown in table 3 as maximum luminousing brightness.

Table 3 (luminescent coating: BaMgAl ₁₀O ₁₇: Eu ²⁺The blue-light-emitting fluorescent material layer)

Annotate) maximum luminousing brightness is that value with comparative example 3 is made as 100 relative value.

[embodiment 43～56]

Except using Zn ₂SiO ₄: Mn ²⁺The green emitting fluorophor powder comes replaced C aMgSi ₂O ₆: Eu ²⁺Outside the blue irradiance fluorophor powder, operate equally, be manufactured on the Zn that is formed with thickness 7 μ m on the quartz base plate via the wavelength conversion layer of thickness 3 μ m with embodiment 1～14 ₂SiO ₄: Mn ²⁺The photism laminated body of green emitting luminescent coating.

[comparative example 4]

Except not forming on the quartz base plate the wavelength conversion layer, operate equally with embodiment 43～56, be manufactured on the Zn that is formed with thickness 7 μ m on the quartz base plate ₂SiO ₄: Mn ²⁺The photism laminated body of green emitting luminescent coating.

[evaluation of photism laminated body]

From the luminescent coating top illumination wavelength 146nm of the photism laminated body that makes by embodiment 43～56 and comparative example 4 and the ultraviolet light of wavelength 172nm, measure the luminescent spectrum of the visible light of emitting from laminated body.The peak-peak of gained luminescent spectrum is shown in table 4 as maximum luminousing brightness.

Table 4 (luminescent coating: Zn ₂SiO ₄: Mn ²⁺The green emitting luminescent coating)

Annotate) maximum luminousing brightness is that value with comparative example 4 is made as 100 relative value.

[embodiment 57～70]

Except using (Y, Gd) BO ₃: Eu ³⁺The red light-emitting phosphor powder comes replaced C aMgSi ₂O ₆: Eu ²⁺Outside the blue irradiance fluorophor powder, operate equally, be manufactured on (Y, Gd) BO that are formed with thickness 7 μ m on the quartz base plate via the wavelength conversion layer of thickness 3 μ m with embodiment 1～14 ₃: Eu ³⁺The photism laminated body of red light-emitting phosphor layer.

[comparative example 5]

Except not forming on the quartz base plate the wavelength conversion layer, operate equally with embodiment 57～70, be manufactured on (Y, Gd) BO that are formed with thickness 7 μ m on the quartz base plate ₃: Eu ³⁺The photism laminated body of red light-emitting phosphor layer.

[evaluation of photism laminated body]

From the luminescent coating top illumination wavelength 146nm of the photism laminated body that makes by embodiment 57～70 and comparative example 5 and the ultraviolet light of wavelength 172nm, measure the luminescent spectrum of the visible light of emitting from laminated body.The peak-peak of gained luminescent spectrum is shown in table 5 as maximum luminousing brightness.

Table 5 (luminescent coating: (Y, Gd) BO ₃: Eu ³⁺The red light-emitting phosphor layer)

Annotate) maximum luminousing brightness is that value with comparative example 5 is made as 100 relative value.

[embodiment 71～84]

Except using Sr ₃MgSi ₂O ₈: Eu ²⁺Blue-light-emitting fluorescent material comes replaced C aMgSi ₂O ₆: Eu ²⁺Outside the blue irradiance fluorophor powder, operate equally, be manufactured on the Sr that is formed with thickness 7 μ m on the quartz base plate via the wavelength conversion layer of thickness 3 μ m with embodiment 1～14 ₃MgSi ₂O ₈: Eu ²⁺The photism laminated body of blue-light-emitting fluorescent material layer.

[comparative example 6]

Except not forming on the quartz base plate the wavelength conversion layer, operate equally with embodiment 71～84, be manufactured on the Sr that is formed with thickness 7 μ m on the quartz base plate ₃MgSi ₂O ₈: Eu ²⁺The photism laminated body of blue-light-emitting fluorescent material layer.

[evaluation of photism laminated body]

From the luminescent coating top illumination wavelength 146nm of the photism laminated body that makes by embodiment 71～84 and comparative example 6 and the ultraviolet light of wavelength 172nm, measure the luminescent spectrum of the visible light of emitting from laminated body.The peak-peak of gained luminescent spectrum is shown in table 6 as maximum luminousing brightness.

Table 6 (luminescent coating: Sr ₃MgSi ₂O ₈: Eu ²⁺The blue-light-emitting fluorescent material layer)

Annotate) maximum luminousing brightness is that value with comparative example 6 is made as 100 relative value.

From the result shown in above-mentioned table 1～6 as can be seen, compare with the photism laminated body that only is formed with luminescent coating, with regard to the photism laminated body that is formed with luminescent coating via wavelength conversion layer according to the present invention, luminosity significantly improves.

[embodiment 85]

With CaMgSi ₂O ₆: Eu ²⁺Blue emitting phophor powder 1.00g and the fluorine-containing magnesia roast powder (MgF that synthesizes by synthesis example 15 ₂MgO) 0.01g puts among the isopropyl alcohol 30mL, carries out ultrasonic wave and disperses to prepare the mixture of powders dispersion liquid.With the mixture of powders dispersion liquid of magnetic stirrer gained 1 hour, then it is put in the evaporator evaporative removal isopropyl alcohol and obtain the dry thing of powder.Under air atmosphere, under 600 ℃ temperature, the dry thing of the powder of heating gained 1 hour is made the fluorophor powder composition further.

[embodiment 86～114 and comparative example 7～21]

With the amount of the content that becomes in the following table 7 record to CaMgSi ₂O ₆: Eu ²⁺Mix the magnesia roast powder that synthesizes by synthesis example 1～15 among the blue irradiance fluorophor powder 1.00g, in addition, make the fluorophor powder composition with embodiment 85 same operations.

[evaluation of the luminosity of fluorophor powder]

To fluorophor powder composition that makes by embodiment 85～114 and comparative example 7～21 and used CaMgSi in the manufacturing of 22 fluorophor powder composition as a comparative example ₂O ₆: Eu ²⁺Blue irradiance fluorophor powder, the ultraviolet light of illumination wavelength 146nm and wavelength 172nm is respectively measured the luminescent spectrum of the visible light of emitting from fluorophor powder.The peak-peak of gained luminescent spectrum is shown in table 7 as maximum luminousing brightness.

Table 7 (fluorophor powder: CaMgSi ₂O ₆: Eu ²⁺Blue irradiance fluorophor powder)

Annotate) maximum luminousing brightness is that value with comparative example 22 is made as 100 relative value.

[embodiment 115～144 and comparative example 23～37]

Use Ca _0.5Sr _0.5MgSi ₂O ₆: Eu ²⁺Blue irradiance fluorophor powder 1.00g comes replaced C aMgSi ₂O ₆: Eu ²⁺Blue irradiance fluorophor powder mixes the magnesia roast powder that is synthesized by synthesis example 1～15 with the amount that becomes the content of record in the following table 8, in addition, makes the fluorophor powder composition with embodiment 85 same operations.

[evaluation of the luminosity of fluorophor powder]

To fluorophor powder composition that makes by embodiment 115～144 and comparative example 23～37 and used Ca in the manufacturing of 38 fluorophor powder composition as a comparative example _0.5Sr _0.5MgSi ₂O ₆: Eu ²⁺Blue irradiance fluorophor powder, the ultraviolet light of illumination wavelength 146nm and wavelength 172nm is respectively measured the luminescent spectrum of the visible light of emitting from fluorophor powder.The peak-peak of gained luminescent spectrum is shown in table 8 as maximum luminousing brightness.

Table 8 (fluorophor powder: Ca _0.5Sr _0.5MgSi ₂O ₆: Eu ²⁺Blue irradiance fluorophor powder)

Annotate) maximum luminousing brightness is that value with comparative example 38 is made as 100 relative value.

[embodiment 145～174 and comparative example 39～53]

Use BaMgAl ₁₀O ₁₇: Eu ²⁺Blue irradiance fluorophor powder 1.00g comes replaced C aMgSi ₂O ₆: Eu ²⁺Blue irradiance fluorophor powder mixes the magnesia roast powder that is synthesized by synthesis example 1～15 with the amount that becomes the content of record in the following table 9, in addition, makes the fluorophor powder composition with embodiment 85 same operations.

[evaluation of the luminosity of fluorophor powder]

To fluorophor powder composition that makes by embodiment 145～174 and comparative example 39～53 and used BaMgAl in the manufacturing of 54 fluorophor powder composition as a comparative example ₁₀O ₁₇: Eu ²⁺Blue irradiance fluorophor powder, the ultraviolet light of illumination wavelength 146nm and wavelength 172nm is respectively measured the luminescent spectrum of the visible light of emitting from fluorophor powder.The peak-peak of gained luminescent spectrum is shown in table 9 as maximum luminousing brightness.

Table 9 (fluorophor powder: BaMgAl ₁₀O ₁₇: Eu ²⁺Blue irradiance fluorophor powder)

Annotate) maximum luminousing brightness is that value with comparative example 54 is made as 100 relative value.

[embodiment 175～204 and comparative example 55～69]

Use Zn ₂SiO ₄: Mn ²⁺Green emitting fluorophor powder 1.00g comes replaced C aMgSi ₂O ₆: Eu ²⁺Blue irradiance fluorophor powder mixes the magnesia roast powder that is synthesized by synthesis example 1～15 with the amount that becomes the content of record in the following table 10, in addition, makes the fluorophor powder composition with embodiment 85 same operations.

[evaluation of the luminosity of fluorophor powder]

To fluorophor powder composition that makes by embodiment 175～204 and comparative example 55～69 and used Zn in the manufacturing of 70 fluorophor powder composition as a comparative example ₂SiO ₄: Mn ²⁺The green emitting fluorophor powder, the ultraviolet light of illumination wavelength 146nm and wavelength 172nm is respectively measured the luminescent spectrum of the visible light of emitting from fluorophor powder.The peak-peak of gained luminescent spectrum is shown in table 10 as maximum luminousing brightness.

Table 10 (fluorophor powder: Zn ₂SiO ₄: Mn ²⁺The green emitting fluorophor powder)

Annotate) maximum luminousing brightness is that value with comparative example 70 is made as 100 relative value.

[embodiment 205～234 and comparative example 71～85]

Use (Y, Gd) BO ₃: Eu ³⁺Red light-emitting phosphor powder 1.00g comes replaced C aMgSi ₂O ₆: Eu ²⁺Blue irradiance fluorophor powder mixes the magnesia roast powder that is synthesized by synthesis example 1～15 with the amount that becomes the content of record in the following table 11, in addition, makes the fluorophor powder composition with embodiment 85 same operations.

[evaluation of the luminosity of fluorophor powder]

To fluorophor powder composition that makes by embodiment 205～234 and comparative example 71～85 and used (Y, Gd) BO in the manufacturing of 86 fluorophor powder composition as a comparative example ₃: Eu ³⁺The red light-emitting phosphor powder, the ultraviolet light of illumination wavelength 146nm and wavelength 172nm is respectively measured the luminescent spectrum of the visible light of emitting from fluorophor powder.The peak-peak of gained luminescent spectrum is shown in table 11 as maximum luminousing brightness.

Table 11 (fluorophor powder: (Y, Gd) BO ₃: Eu ³⁺The red light-emitting phosphor powder)

Annotate) maximum luminousing brightness is that value with comparative example 86 is made as 100 relative value.

[embodiment 235～264 and comparative example 87～101]

Use Sr ₃MgSi ₂O ₈: Eu ²⁺Blue irradiance fluorophor powder 1.00g comes replaced C aMgSi ₂O ₆: Eu ²⁺Blue irradiance fluorophor powder mixes the magnesia roast powder that is synthesized by synthesis example 1～15 with the amount that becomes the content of record in the following table 12, in addition, makes the fluorophor powder composition with embodiment 85 same operations.

[evaluation of the luminosity of fluorophor powder]

To fluorophor powder composition that makes by embodiment 235～264 and comparative example 87～101 and used Sr in the manufacturing of 102 fluorophor powder composition as a comparative example ₃MgSi ₂O ₈: Eu ²⁺Blue irradiance fluorophor powder, the ultraviolet light of illumination wavelength 146nm and wavelength 172nm is respectively measured the luminescent spectrum of the visible light of emitting from fluorophor powder.The peak-peak of gained luminescent spectrum is shown in table 12 as maximum luminousing brightness.

Table 12 (fluorophor powder: Sr ₃MgSi ₂O ₈: Eu ²⁺Blue irradiance fluorophor powder)

Annotate) maximum luminousing brightness is that value with comparative example 102 is made as 100 relative value.

From the result shown in above-mentioned table 7～12 as can be seen, compare with independent fluorophor powder, with regard to the fluorophor powder composition that comprises fluorophor powder and magnesia roast powder within the scope of the invention, for the ultraviolet light of wavelength 146nm that produces and wavelength 172nm, especially being equivalent to Xe by Xe gas discharge ₂The luminosity height of ultraviolet light of wavelength 172nm of molecular ray.

[embodiment 265]

In isopropyl alcohol 300mL, add ethylmethylcellulose 21g, use magnetic stirrer 15 minutes, prepare the pasty state base material.In described pasty state base material, add the fluorine-containing magnesia roast powder (MgF that synthesizes by synthesis example 15 ₂MgO) 2.5g uses the deaeration machine to mix 7 minutes, prepares fluorine-containing magnesia roast powder pastel.In addition, in the pasty state base material of same preparation, add CaMgSi ₂O ₆: Eu ²⁺Blue irradiance fluorophor powder 2.5g uses the deaeration machine to mix 7 minutes, preparation CaMgSi ₂O ₆: Eu ²⁺The blue irradiance fluorophor powder pastel.

Use the CaMgSi of screen process press with above-mentioned preparation ₂O ₆: Eu ²⁺The blue irradiance fluorophor powder pastel is applied on the quartz base plate of diameter 19.8mm, thickness 2.0mm, and is dry under 70 ℃ temperature, anneals 1 hour under 600 ℃ temperature then, forms the CaMgSi of thickness 7 μ m ₂O ₆: Eu ²⁺The blue-light-emitting fluorescence coating.Then, use screen process press that the fluorine-containing magnesia roast powder pastel of above-mentioned preparation is applied to CaMgSi ₂O ₆: Eu ²⁺On the blue-light-emitting fluorescence coating, drying under 70 ℃ temperature was annealed 1 hour under 600 ℃ temperature then, formed the fluorine-containing magnesia roast layer of thickness 3 μ m, was manufactured on to be formed with CaMgSi on the quartz base plate in order ₂O ₆: Eu ²⁺Blue-light-emitting fluorescent material layer and comprise the photism laminated body of the fluorophor protective layer of fluorine-containing magnesia roast powder.

[embodiment 266～279]

Except using the magnesia roast powder that makes by synthesis example 1～14 to replace the fluorine-containing magnesia roast powder, operate equally with embodiment 265, be manufactured on the CaMgSi that is formed with thickness 7 μ m on the quartz base plate in order ₂O ₆: Eu ²⁺The photism laminated body of the fluorophor protective layer that comprises magnesia roast powder of blue-light-emitting fluorescent material layer and thickness 3 μ m.

[comparative example 103]

Except not forming on the luminescent coating the fluorophor protective layer, operate equally with embodiment 265, be manufactured on the CaMgSi that is formed with thickness 7 μ m on the quartz base plate ₂O ₆: Eu ²⁺The photism laminated body of blue-light-emitting fluorescent material layer.

[comparative example 104]

Except use does not show that by the irradiation of the ultraviolet light of wavelength 146nm and wavelength 172nm luminous magnesium oxide powder replaces the fluorine-containing magnesia roast powder, operate equally with embodiment 265, be manufactured on the CaMgSi that is formed with thickness 7 μ m on the quartz base plate in order ₂O ₆: Eu ²⁺The photism laminated body of the fluorophor protective layer that comprises magnesium oxide powder of blue-light-emitting fluorescent material layer and thickness 3 μ m.

[evaluation of photism laminated body]

The luminescent coating top of the photism laminated body that makes from the fluorophor protective layer top of the photism laminated body that made by embodiment 265～279 and comparative example 104 and by comparative example 103, the ultraviolet light of illumination wavelength 146nm and wavelength 172nm is 15 minutes respectively.Mensuration begins back moment and the luminescent spectrum of the visible light that begins from irradiation to emit through the photism laminated body after 15 hours from the irradiation of ultraviolet light.The peak-peak of luminescent spectrum of obtaining irradiation beginning back moment is as the initial stage maximum luminousing brightness, obtain will irradiation beginning back the peak-peak of luminescent spectrum of moment be made as 100% irradiation and begin relative value through the peak-peak of the luminescent spectrum after 15 hours as the brightness sustainment rate, its result is as shown in table 13.

Table 13 (luminescent coating: CaMgSi ₂O ₆: Eu ²⁺The blue-light-emitting fluorescent material layer)

Annotate) the initial stage maximum luminousing brightness is that value with comparative example 103 is made as 100 relative value.

[embodiment 280～294]

Except using Ca _0.5Sr _0.5MgSi ₂O ₆: Eu ²⁺Blue irradiance fluorophor powder comes replaced C aMgSi ₂O ₆: Eu ²⁺Outside the blue irradiance fluorophor powder, operate equally, be manufactured on the Ca that is formed with thickness 7 μ m on the quartz base plate in order with embodiment 265～279 _0.5Sr _0.5MgSi ₂O ₆: Eu ²⁺The photism laminated body of the fluorophor protective layer that comprises magnesia roast powder of blue-light-emitting fluorescent material layer and thickness 3 μ m.

[comparative example 105]

Except not forming on the luminescent coating the fluorophor protective layer, operate equally with embodiment 280～294, be manufactured on the Ca that is formed with thickness 7 μ m on the quartz base plate _0.5Sr _0.5MgSi ₂O ₆: Eu ²⁺The photism laminated body of blue-light-emitting fluorescent material layer.

[comparative example 106]

Except use does not show that by the irradiation of the ultraviolet light of wavelength 146nm and wavelength 172nm luminous magnesium oxide powder replaces the magnesia roast powder, operate equally with embodiment 280～294, be manufactured on the Ca that is formed with thickness 7 μ m on the quartz base plate in order _0.5Sr _0.5MgSi ₂O ₆: Eu ²⁺The photism laminated body of the fluorophor protective layer that comprises magnesium oxide powder of blue-light-emitting fluorescent material layer and thickness 3 μ m.

[evaluation of photism laminated body]

Obtain the initial stage maximum luminousing brightness and the brightness sustainment rate of the fluorophor protective layer of the photism laminated body that makes by embodiment 280～294 and comparative example 105,106 equally with the foregoing description 265～279 and comparative example 103,104.It the results are shown in table 14.

Table 14 (luminescent coating: Ca _0.5Sr _0.5MgSi ₂O ₆: Eu ²⁺The blue-light-emitting fluorescent material layer)

Annotate) maximum luminousing brightness is that value with comparative example 105 is made as 100 relative value.

[embodiment 295～309]

Except using BaMgAl ₁₀O ₁₇: Eu ²⁺Blue irradiance fluorophor powder comes replaced C aMgSi ₂O ₆: Eu ²⁺Outside the blue irradiance fluorophor powder, operate equally, be manufactured on the BaMgAl that is formed with thickness 7 μ m on the quartz base plate in order with embodiment 265～279 ₁₀O ₁₇: Eu ²⁺The photism laminated body of the fluorophor protective layer that comprises magnesia roast powder of blue-light-emitting fluorescent material layer and thickness 3 μ m.

[comparative example 107]

Except not forming on the luminescent coating the fluorophor protective layer, operate equally with embodiment 295～309, be manufactured on the BaMgAl that is formed with thickness 7 μ m on the quartz base plate ₁₀O ₁₇: Eu ²⁺The photism laminated body of blue-light-emitting fluorescent material layer.

[comparative example 108]

Except use does not show that by the irradiation of the ultraviolet light of wavelength 146nm and wavelength 172nm luminous magnesium oxide powder replaces the magnesia roast powder, operate equally with embodiment 295～309, be manufactured on the BaMgAl that is formed with thickness 7 μ m on the quartz base plate in order ₁₀O ₁₇: Eu ²⁺The photism laminated body of the fluorophor protective layer that comprises magnesium oxide powder of blue-light-emitting fluorescent material layer and thickness 3 μ m.

[evaluation of photism laminated body]

Obtain the initial stage maximum luminousing brightness and the brightness sustainment rate of the fluorophor protective layer of the photism laminated body that makes by embodiment 295～309 and comparative example 107,108 equally with the foregoing description 265～279 and comparative example 103,104.It the results are shown in table 15.

Table 15 (luminescent coating: BaMgAl ₁₀O ₁₇: Eu ²⁺The blue-light-emitting fluorescent material layer)

Annotate) the initial stage maximum luminousing brightness is that value with comparative example 107 is made as 100 relative value.

[embodiment 310～324]

Except using Zn ₂SiO ₄: Mn ²⁺The green emitting fluorophor powder comes replaced C aMgSi ₂O ₆: Eu ²⁺Outside the blue irradiance fluorophor powder, operate equally, be manufactured on the Zn that is formed with thickness 7 μ m on the quartz base plate in order with embodiment 265～279 ₂SiO ₄: Mn ²⁺The photism laminated body of the fluorophor protective layer that comprises magnesia roast powder of green emitting luminescent coating and thickness 3 μ m.

[comparative example 109]

Except not forming on the luminescent coating the fluorophor protective layer, operate equally with embodiment 310～324, be manufactured on the Zn that is formed with thickness 7 μ m on the quartz base plate ₂SiO ₄: Mn ²⁺The photism laminated body of green emitting luminescent coating.

[comparative example 110]

Except use does not show that by the irradiation of the ultraviolet light of wavelength 146nm and wavelength 172nm luminous magnesium oxide powder replaces the magnesia roast powder, operate equally with embodiment 310～324, be manufactured on the Zn that is formed with thickness 7 μ m on the quartz base plate in order ₂SiO ₄: Mn ²⁺The photism laminated body of the fluorophor protective layer that comprises magnesium oxide powder of green emitting luminescent coating and thickness 3 μ m.

[evaluation of photism laminated body]

Obtain the initial stage maximum luminousing brightness and the brightness sustainment rate of the fluorophor protective layer of the photism laminated body that makes by embodiment 310～324 and comparative example 109,110 equally with the foregoing description 265～279 and comparative example 103,104.It the results are shown in table 16.

Table 16 (luminescent coating: Zn ₂SiO ₄: Mn ²⁺The green emitting luminescent coating)

Annotate) the initial stage maximum luminousing brightness is that value with comparative example 109 is made as 100 relative value.

[embodiment 325～339]

Except using (Y, Gd) BO ₃: Eu ³⁺The red light-emitting phosphor powder comes replaced C aMgSi ₂O ₆: Eu ²⁺Outside the blue irradiance fluorophor powder, operate equally, be manufactured on (Y, Gd) BO that are formed with thickness 7 μ m on the quartz base plate in order with embodiment 265～279 ₃: Eu ³⁺The photism laminated body of the fluorophor protective layer that comprises magnesia roast powder of red light-emitting phosphor layer and thickness 3 μ m.

[comparative example 111]

Except not forming on the luminescent coating the fluorophor protective layer, operate equally with embodiment 325～339, be manufactured on (Y, Gd) BO that are formed with thickness 7 μ m on the quartz base plate ₃: Eu ³⁺The photism laminated body of red light-emitting phosphor layer.

[comparative example 112]

Except use does not show that by the irradiation of the ultraviolet light of wavelength 146nm and wavelength 172nm luminous magnesium oxide powder replaces the magnesia roast powder, operate equally with embodiment 325～339, be manufactured on (Y, Gd) BO that are formed with thickness 7 μ m on the quartz base plate in order ₃: Eu ³⁺The photism laminated body of the fluorophor protective layer that comprises magnesium oxide powder of red light-emitting phosphor layer and thickness 3 μ m.

[evaluation of photism laminated body]

Obtain the initial stage maximum luminousing brightness and the brightness sustainment rate of the fluorophor protective layer of the photism laminated body that makes by embodiment 325～339 and comparative example 111,112 equally with the foregoing description 265～279 and comparative example 103,104.It the results are shown in table 17.

Table 17 (luminescent coating: (Y, Gd) BO ₃: Eu ³⁺The red light-emitting phosphor layer)

Annotate) the initial stage maximum luminousing brightness is that value with comparative example 111 is made as 100 relative value.

[embodiment 340～354]

Except using Sr ₃MgSi ₂O ₈: Eu ²⁺Blue irradiance fluorophor powder comes replaced C aMgSi ₂O ₆: Eu ²⁺Outside the blue irradiance fluorophor powder, operate equally, be manufactured on the Sr that is formed with thickness 7 μ m on the quartz base plate in order with embodiment 265～279 ₃MgSi ₂O ₈: Eu ²⁺The photism laminated body of the fluorophor protective layer that comprises magnesia roast powder of blue-light-emitting fluorescent material layer and thickness 3 μ m.

[comparative example 113]

Except not forming on the luminescent coating the fluorophor protective layer, operate equally with embodiment 340～354, be manufactured on the Sr that is formed with thickness 7 μ m on the quartz base plate ₃MgSi ₂O ₈: Eu ²⁺The photism laminated body of blue-light-emitting fluorescent material layer.

[comparative example 114]

Except use does not show that by the irradiation of the ultraviolet light of wavelength 146nm and wavelength 172nm luminous magnesium oxide powder replaces the magnesia roast powder, operate equally with embodiment 340～354, be manufactured on the Sr that is formed with thickness 7 μ m on the quartz base plate in order ₃MgSi ₂O ₈: Eu ²⁺The photism laminated body of the fluorophor protective layer that comprises magnesium oxide powder of blue-light-emitting fluorescent material layer and thickness 3 μ m.

[evaluation of photism laminated body]

Obtain the initial stage maximum luminousing brightness and the brightness sustainment rate of the fluorophor protective layer of the photism laminated body that makes by embodiment 340～354 and comparative example 113,114 equally with the foregoing description 265～279 and comparative example 103,104.It the results are shown in table 18.

Table 18 (luminescent coating: Sr ₃MgSi ₂O ₈: Eu ²⁺The blue-light-emitting fluorescent material layer)

Annotate) the initial stage maximum luminousing brightness is that value with comparative example 113 is made as 100 relative value.

From the result shown in table 13～18 as can be seen; comprise not by the ultraviolet excitation of wavelength 146nm and wavelength 172nm and do not show that the photism laminated body of the fluorophor protective layer of luminous magnesium oxide powder compares with being formed with; with regard to photism laminated body according to the present invention, the luminosity height at initial stage.In addition, compare with the photism laminated body that is not formed with the fluorophor protective layer, with regard to photism laminated body according to the present invention, little by the change of the brightness sustainment rate that difference caused of luminescent coating.

Claims

1. photism laminated body, it is the photism laminated body that is formed with luminescent coating on matrix via wavelength conversion layer,

Described wavelength conversion layer comprises by Xe gas discharge and the ultraviolet light that produces is excited and be emitted in the ultraviolet light that has the peak in the wave-length coverage of 230～260nm, be selected from least a magnesia roast powder in following (1)～(4),

(1) contains the chloride magnesia roast powder of chlorine with the scope of 0.005～10 quality %;

(2) contain the magnesia roast powder that contains zinc of zinc with the scope of 0.1～30 quality %;

(3) mixture of powders of γ type alumina powder and magnesium oxide source powder is burnt till and aluminium content at the magnesia roast powder that contains aluminium of the scope of 2～38 quality %;

2. photism laminated body according to claim 1, wherein, the thickness of wavelength conversion layer is in the scope of 0.5～10 μ m, and the thickness of luminescent coating is in the scope of 0.1～30 μ m.

3. photism laminated body according to claim 1, wherein, luminescent coating is: contain by being selected from CaMgSi ₂O ₆: Eu ²⁺, (Ca, Sr) MgSi ₂O ₆: Eu ²⁺, Sr ₃MgSi ₂O ₈: Eu ²⁺And BaMgAl ₁₀O ₁₇: Eu ²⁺In the blue-light-emitting fluorescent material layer of the blue-light-emitting fluorescent material represented of at least one basic composition formula; Contain by Zn ₂SiO ₄: Mn ²⁺The green emitting luminescent coating of the green emitting fluorophor represented of basic composition formula; Perhaps contain by (Y, Gd) BO ₃: Eu ³⁺The red light-emitting phosphor layer of the red light-emitting phosphor represented of basic composition formula.

4. photism laminated body according to claim 1, the backplate that this photism laminated body is an AC plasma display panel or the light-emitting component of Xe lamp.

5. photism laminated body, it is the photism laminated body that is formed with the luminescent coating that comprises the fluorophor powder composition on matrix,

Described fluorophor powder composition comprises:

The content ratio of described magnesia roast powder and described fluorophor powder is: with respect to fluorophor powder 1 mass parts, the amount of magnesia roast powder is the scope of 0.001～0.080 mass parts,

(1) contains the fluorine-containing magnesia roast powder of fluorine with the scope of 0.01～10 quality %;

(2) contain the chloride magnesia roast powder of chlorine with the scope of 0.005～10 quality %;

(3) contain the magnesia roast powder that contains zinc of zinc with the scope of 0.1～30 quality %;

(4) mixture of powders of γ type alumina powder and magnesium oxide source powder is burnt till and aluminium content at the magnesia roast powder that contains aluminium of the scope of 2～38 quality %;

6. photism laminated body according to claim 5, wherein, the thickness of luminescent coating is in the scope of 0.1～40 μ m.

7. photism laminated body according to claim 5, wherein, fluorophor powder is: contain by being selected from CaMgSi ₂O ₆: Eu ²⁺, (Ca, Sr) MgSi ₂O ₆: Eu ²⁺, Sr ₃MgSi ₂O ₈: Eu ²⁺And BaMgAl ₁₀O ₁₇: Eu ²⁺In the powder of the blue-light-emitting fluorescent material represented of at least one basic composition formula; Contain by Zn ₂SiO ₄: Mn ²⁺The powder of the green emitting fluorophor represented of basic composition formula; Perhaps contain by (Y, Gd) BO ₃: Eu ³⁺The powder of the red light-emitting phosphor represented of basic composition formula.

8. photism laminated body according to claim 5, the backplate that this photism laminated body is an AC plasma display panel or the light-emitting component of Xe lamp.

9. photism laminated body, the fluorophor protective layer that this photism laminated body comprises the luminescent coating on matrix, this matrix and forms on this luminescent coating,

Described fluorophor protective layer comprises by Xe gas discharge and the ultraviolet light that produces is excited and be emitted in the ultraviolet light that has the peak in the wave-length coverage of 230～260nm, be selected from least a magnesia roast powder in following (1)～(5),