CN1875665A

CN1875665A - Light-emitting device

Info

Publication number: CN1875665A
Application number: CN 200480031782
Authority: CN
Inventors: 上野严; 加藤纯一; 西山诚司; 野田直树
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 2003-10-27
Filing date: 2004-10-21
Publication date: 2006-12-06
Anticipated expiration: 2024-10-21
Also published as: CN100505964C

Abstract

Disclosed is a light-emitting device (1) comprising a light-emitting layer (2) containing a phosphor and at least two electrodes (6, 7). The light-emitting device (1) also comprises at least two electrically insulating layers (2, 9) having different dielectric constants, and one of the electrically insulating layers (2, 9) is the light-emitting layer (2). Either one of the electrodes (6, 7) is formed in contact with one of the insulating layers. Consequently, a light-emitting device which is capable of emitting a light by utilizing surface discharge can be produced at low cost. The light-emitting device has a good luminous efficiency, and the power consumption can be low when a large-screen display is produced using this light-emitting device.

Description

Light-emitting component

Technical field

The present invention relates to a kind of light-emitting component.It is simple, easy to manufacture particularly to relate to formation, and the light-emitting component of the unit picture element of the big view display of formation low power consumption.

Background technology

In recent years, as large-sized panel display device, LCD and plasma display just are widely used, but need further develop high image quality, high efficiency display.As substituting of this display, comprise electroluminescent display (ELD) and field-emitter display (FED).In non-patent literature 1,, done following record substantially about ELD.The former basic structure is, to applying electric field at the fluorophor as luminescent layer, known have decentralized and a film-type by insulating barrier.Decentralized has following structure: the ZnS particle that has added impurity Cu etc. is disperseed in the organic substance adhesive, form insulating barrier thereon, and clamp by upper/lower electrode.Impurity forms the pn knot in fluorophor particle, if apply electric field, the electronics of emitting by the high electric field that produces on bonding plane just is accelerated and hole combination once more, thereby luminous.The latter has had as the doping of luminescent layer the structure of Fluoropher thin films such as ZnS configured electrodes via insulator layer of Mn.Owing to there is insulator layer, then can in luminescent layer, apply high electric field, because the ejected electron stimulated luminescence center that electric field is accelerated and luminous.On the other hand, FED has electronics to emit element and the structure that the fluorophor relative with it forms in vacuum tank, emit element in a vacuum with after the electronics acceleration of emitting by electronics, shines on the luminescent coating, makes it luminous thus.

Any device all is as luminous beginning, so low-voltage, the technology of ejected electron is very important expeditiously with ejected electron.As this technology, paid close attention to by ferroelectric polarization reversal (polarization reversal) ejected electron.For example, in following non-patent literature 2, as shown in figure 20, proposed in vacuum tank 36, it is relative with platinum electrode 34 with the PZT pottery 31 that another side is provided with clathrate electrode 33 to make one side be provided with plane electrode 32 by grid 35, by apply pulse voltage, ejected electron between electrode.The 37th, exhaust outlet.Record following content according to this scheme: the pressure in the container is 1.33Pa (10-2Torr), under atmospheric pressure not discharge.

Record in following patent documentation 1 and the following patent documentation 2: in vacuum tank, will be accelerated, make luminescent coating luminous, perhaps use this luminous display by the electronics that ferroelectric polarization reversal is emitted.Basic structure is: by replace the platinum electrode of non-patent literature 2 with the electrode with luminescent coating, make luminescent coating luminous.

On the other hand, in antivacuum, use light-emitting component for example in following patent documentation 3, to be disclosed as the electroluminescence surface light source element by ferroelectric polarization reversal ejected electron.As shown in Figure 2, this element is to form lower electrode 42, ferroelectric thin film 41, upper electrode 43, charge carrier dynode layer 48, luminescent layer 44, transparency electrode 46 on substrate 45 successively, and wherein upper electrode has peristome 47.Apply potential pulse counter-rotating by making between lower electrode and the upper electrode, electronics is released to the charge carrier dynode layer from the peristome of upper electrode, quicken by the positive voltage that is applied to transparency electrode again, electron multiplication on one side arrived luminescent layer and luminous on one side.Also record: charge carrier dynode layer and semiconductor that have the band gap that do not absorb emission wavelength that luminescent layer emit lower by dielectric constant constitutes.This element can be thought a kind of ELD.In addition, in patent documentation 4, also disclose: the luminescent layer that constitutes by the formed fluorophor of sputter with interior external insulation layer clamping, and apply pulse voltage, in this structure, the insulator of a side is made of ferroelectric thin film.

Patent documentation 1: the spy opens flat 07-64490 communique

Patent documentation 2: No. 5453661 specification of United States Patent (USP)

Patent documentation 3: the spy opens flat 06-283269 communique

Patent documentation 4: the spy opens flat 08-083686 communique

Non-patent literature 1: pine originally positive one is write, and " electronic console ", Ohmsha company put down on July 7th, 7, P.113-125

Non-patent literature 2:Jun-ichi Asano et al, " Field-Exited Electron EmissionfromFerroelectric Ceramic in Vacuum ' Japanese Journal of AppliedPhysics Vol.31 Partl p.3098-3101, Sep/1992

In aforementioned prior art, for the situation that is necessary for vacuum state, it has complex structure, and the extremely difficult problem that makes big picture.For example, field-emitter display (FED) can expect that high luminous efficiency is arranged, but must have the vacuum tank in the space of the condition of high vacuum degree that is kept for the ejected electron ray.For this reason, it is complicated that the structure of display becomes, and think that the realization of big picture structure is difficult.For FED, also there is not the FED of goodsization.

In addition, the situation for not needing vacuum tank has plasma display.Plasma display can temporarily change ultraviolet luminous energy into by discharging, this ultraviolet excitation fluorophor, thus luminous.In the process of excited fluophor, this ultraviolet is absorbed by the parts beyond the fluorophor morely, therefore, is difficult to improve luminous efficiency, when having as big view display, and the problem that power consumption is big.

In addition, do not needing to comprise EL in the display of vacuum tank equally, but inorganic EL there is problem at aspects such as luminous efficiency and color reprodubilities, organic EL is owing to used the film that uses in the manufacturing of LCD etc. to form technology, so have the problem that equipment becomes large-scale.In addition, be difficult to form big picture, do not know the display that has by commercialization as yet.

Summary of the invention

Light-emitting component of the present invention is to comprise the emitter that contains fluorophor and the light-emitting component of at least 2 electrodes, it is characterized in that: aforementioned light-emitting component comprises at least 2 kinds of electrical insulator layer with differing dielectric constant, in the aforementioned electric insulator layer one of be aforementioned emitter, any electrode in aforementioned 2 electrodes thinks that the arbitrary contacted mode with aforementioned dielectric body layer forms.

Principle of luminosity of the present invention is: cause insulation breakdown between at least 2 electrodes, and produce primary electron (e ^-), primary electron (e ^-) collide the fluorophor particle of luminescent coating and produce creeping discharge, further a large amount of secondary electron (e that produce ^-), the electronics of avalanche type ground generation and ultraviolet ray collide the luminescence center of fluorophor thus, and fluorophor particle is excited, and is luminous thus.

Description of drawings

Fig. 1 is the cutaway view of the light-emitting component of embodiment of the present invention 1.

Fig. 2 is the figure of manufacturing process that is used to illustrate the light-emitting component of embodiment of the present invention 1.

Fig. 3 is the figure of manufacturing process that is used to illustrate the light-emitting component of embodiment of the present invention 1.

Fig. 4 is the figure of manufacturing process that is used to illustrate the light-emitting component of embodiment of the present invention 1.

Fig. 5 is the figure of manufacturing process that is used to illustrate the light-emitting component of embodiment of the present invention 1.

Fig. 6 is the schematic diagram with the section amplification of the porous luminescent layer of embodiment of the present invention 1.

Fig. 7 is the cutaway view of the light-emitting component of embodiment of the present invention 2.

Fig. 8 is the cutaway view of the light-emitting component of embodiment of the present invention 3.

Fig. 9 is the cutaway view of the light-emitting component of embodiment of the present invention 4.

Figure 10 is the figure of manufacturing process that is used to illustrate the light-emitting component of embodiment of the present invention 4.

Figure 11 is the figure of manufacturing process that is used to illustrate the light-emitting component of embodiment of the present invention 4.

Figure 12 is the figure of manufacturing process that is used to illustrate the light-emitting component of embodiment of the present invention 4.

Figure 13 is the figure of manufacturing process that is used to illustrate the light-emitting component of embodiment of the present invention 4.

Figure 14 is the schematic diagram with the section amplification of the porous luminescent layer of embodiment of the present invention 5.

Figure 15 is the schematic diagram with the section amplification of the porous luminescent layer of embodiment of the present invention 5.

Figure 16 is the decomposition diagram of the light-emitting component of embodiment of the present invention 6.

Figure 17 is the key diagram of the luminous effect function of expression embodiment of the present invention 1.

Figure 18 is the cutaway view of the light-emitting component of embodiment of the present invention 7.

Figure 19 is the cutaway view of the light-emitting component of embodiment of the present invention 8.

Figure 20 is the cutaway view of light-emitting component of an example in the past of non-patent literature 2.

Figure 21 is the cutaway view of light-emitting component of an example in the past of patent documentation 3.

Figure 22 is the cutaway view of the light-emitting component of embodiment of the present invention 9.

Figure 23 is the cutaway view of the light-emitting component of embodiment of the present invention 10.

Figure 24 is the cutaway view of the light-emitting component of embodiment of the present invention 11.

Figure 25 is the cutaway view of the light-emitting component of embodiment of the present invention 12.

Figure 26 is the cutaway view of the light-emitting component of embodiment of the present invention 13.

Figure 27 is the cutaway view of the light-emitting component of embodiment of the present invention 14.

Figure 28 is the cutaway view of the light-emitting component of embodiment of the present invention 15.

Figure 29 is the cutaway view of the light-emitting component of embodiment of the present invention 16.

Figure 30 A-F is the technology cutaway view that is used to illustrate the manufacture method of light-emitting component shown in Figure 29.

Figure 31 is the cutaway view of the light-emitting component of embodiment of the present invention 17.

Figure 32 A-G is the technology cutaway view that is used to illustrate the manufacture method of light-emitting component shown in Figure 31.

Figure 33 is the cutaway view of the light-emitting component of embodiment of the present invention 18.

Figure 34 A-C is the technology cutaway view that is used to illustrate the manufacture method of light-emitting component shown in Figure 33.

Figure 35 is the cutaway view of the light-emitting component of embodiment of the present invention 19.

Figure 36 A-D is the technology cutaway view that is used to illustrate the manufacture method of light-emitting component shown in Figure 35.

Figure 37 A-C is used to illustrate that the electronics of embodiment of the present invention 20 emits the technology cutaway view of the manufacture method of body.

Figure 38 is the cutaway view of porous luminous element that constitutes the light-emitting component of embodiment of the present invention 21.

Figure 39 is the cutaway view of porous luminous element that constitutes the light-emitting component of embodiment of the present invention 21.

Figure 40 is the cutaway view of porous luminous element that constitutes the light-emitting component of embodiment of the present invention 21.

Figure 41 is the schematic diagram of section of porous luminous element that constitutes the light-emitting component of embodiment of the present invention 21.

Figure 42 is the schematic diagram of section of porous luminous element that constitutes the light-emitting component of embodiment of the present invention 21.

Figure 43 is the decomposition diagram of major part of the field-emitter display of embodiment of the present invention 22.

Figure 44 is the cutaway view of the light-emitting device array of embodiment of the present invention 22.

Figure 45 A-C is the cutaway view of array of the light-emitting component of embodiment of the present invention 23.

Embodiment

Light-emitting component of the present invention begins to contain at least first electrode, dielectric layer, porous luminescent layer and second electrode from rear side, is provided with the gap between aforementioned porous luminescent layer and electrode.Thus,, then can in aforementioned gap, cause the insulation breakdown of gas, promote the generation of primary electron if between first electrode and second electrode, apply AC field.By producing creeping discharge in the porous luminescent layer of this primary electron between electrode, emit secondary electron and ultraviolet ray.The luminescence center of secondary electron of being emitted and ultraviolet ray excited porous luminescent layer, thus luminous.

Aforementioned gap can be gap arbitrarily, preferably is provided with in the scope of 1 μ m～300 μ m.During less than 1 μ m, can have the tendency that can be difficult to control gap,, then have the tendency that is difficult to produce insulation breakdown if surpass 300 μ m.Common is that the insulation breakdown of the air in atmosphere is 3kV/mm, must apply the electric field in 300V or above (under the gap of 100 μ m).If under reduced pressure, then can be in 300V or following generation insulation breakdown, if but apply high voltage then can in each position of component structure, produce damage.Therefore, in order to apply the voltage that can not produce damage, the scope of aforementioned gap is preferred.Aforementioned gap is 10 μ m～100 μ m more preferably.

Light-emitting component of the present invention is to be caused luminously by the creeping discharge in the porous luminescent layer, when forming the porous luminescent layer, does not need film to form technology, vacuum system, charge carrier dynode layer etc., so simple in structure, easy to manufacture.In addition, luminous efficiency is good, and when making giant display, power consumption is less.In addition, light-emitting component of the present invention can be provided with the discharge separating mechanism between the porous luminescent layer, the cross interference in the time of can avoiding luminous thus.Here, described cross interference is meant that luminous meeting between a certain pixel and the contiguous pixel influences each other and reduces the phenomenon of luminous efficiency.

Discharge separating mechanism of the present invention especially preferably is provided with next door and/or space etc.The next door of separating aforementioned porous luminescent layer is preferably the electrical insulator of thickness 80～300 μ m.

When forming the next door, preferably form with inorganic material.As inorganic material, can use glass, pottery, dielectric etc.Comprise Y as dielectric ₂O ₃, Li ₂O, MgO, CaO, BaO, SrO, Al ₂O ₃, SiO ₂, MgTiO ₃, CaTiO ₃, BaTiO ₃, SrTiO ₃, ZrO ₂, TiO ₂, B ₂O ₃, PbTiO ₃, PbZrO ₃, PbZrTiO ₃(PZT) etc.

When forming the space as aforementioned discharge separating mechanism, void pitch is preferably 80～300 μ m.

The aforementioned porous luminescent layer and second gaps between electrodes separate at thickness direction by rib (rib).This is because the electronics that the wall of rib causes insulation breakdown easily to be produced.The material of rib preferably from the next door identical materials select.The surface in rib and next door preferably is even surface as far as possible.If even surface, then the electrical conductivity of Chan Shenging is given rib, jumps (hopping) easily, can improve the illumination effect of porous luminescent layer.

Atmosphere in the aforementioned light-emitting component is preferably at least a kind that is selected from atmosphere, oxygen, nitrogen and the rare gas.

The atmosphere of aforementioned light-emitting component preferably contain be selected from through the decompression aforementioned gas at least a.

Aforementioned porous luminescent layer preferably sends red (R), green (G) and blue (B) light at least.

Aforementioned porous luminescent layer is preferably formed by the fluorophor particle that has insulating barrier on the surface.

Aforementioned porous luminescent layer is preferably formed by fluorophor particle and insulating properties fiber.

Aforementioned porous luminescent layer is preferably formed by fluorophor particle that has insulating barrier on the surface and insulating properties fiber.

The apparent porosity of aforementioned porous luminescent layer is more than or equal to 10% and less than 100%.In the porous luminescent layer (aggregate in fluorophor particle and space),,,, can not hinder electronics and jump by making porosity in aforementioned range so must make the mean free path of the void ratio electronics between each fluorophor particle shorter because electronics is jumped.

Aforementioned first or second electrode is preferably addressing electrode or show electrode.

Preferred aforementioned second electrode is a transparency electrode, and is configured in sightingpiston one side.

Light-emitting component of the present invention is the light-emitting component that contains dielectric layer, porous emitter, pair of electrodes, other electrode, aforementioned porous emitter contains the inorganic phosphor particle, aforementioned pair of electrodes disposes in the mode that at least a portion of giving an account of electrics layer forward applies electric field, and aforementioned other electrode disposes in the mode that applies voltage between at least one electrode in this other electrode and aforementioned pair of electrodes, to the part of aforementioned porous emitter.Just, for example be the sub-light-emitting components of multiterminal such as 3 terminal light-emitting components.Owing to be as above to constitute,, at first can emit primary electron from dielectric layer by polarization reversal so between pair of electrodes, apply the electric field of polarization reversal.Afterwards, between at least one electrode of other electrode and pair of electrodes, apply alternating electric field, the primary electron of emitting avalanche type ground in the porous emitter causes creeping discharge and produces secondary electron.At last, a large amount of secondary electron stimulated luminescence centers that produce, aforementioned porous emitter is luminous.

Aforesaid pair of electrodes can be configured on the dielectric layer.In aforementioned pair of electrodes, can be that an electrode is configured on the border of dielectric layer and porous emitter, another is configured on the dielectric layer.In addition, aforementioned other electrode can be configured on the porous emitter.In addition, aforementioned pair of electrodes can form in the mode on the border of clamping dielectric layer and porous emitter.In addition, aforementioned pair of electrodes also can all be formed on the border of dielectric layer and porous emitter.In addition, in the aforementioned pair of electrodes, an electrode can be formed on the border of dielectric layer and porous emitter, and another electrode is formed on the dielectric layer.

Aforementioned porous emitter can be made of the continuous pores that is connected to aforementioned porous emitter surface, the gas and the fluorophor particle that are filled in the aforementioned pore.Be filled into gas in the aforementioned pore and can be and be selected from least a gas in atmosphere, oxygen, nitrogen and the inert gas or select at least a gas in the depressed gas.

Aforementioned dielectric layer can be made of the sintered body of dielectric.In addition, aforementioned dielectric layer can be made of dielectric particle and adhesive.Perhaps, aforementioned dielectric layer also can form with film.In addition, aforementioned porous emitter can form by the insulating barrier on fluorophor particle and this fluorophor particle surface.In addition, aforementioned porous emitter can constitute by fluorophor particle and insulating properties fiber.In addition, aforementioned porous emitter also can be passed through the insulating barrier and the insulating properties fiber formation on fluorophor particle, this fluorophor particle surface.

By applying the electric field that is used for aforementioned pair of electrodes polarization reversal, emit primary electron from dielectric layer, the primary electron of emitting is in the porous emitter, cause to avalanche type creeping discharge, produce secondary electron, collide fluorophor particle by a large amount of secondary electrons that aforementioned creeping discharge produced, aforementioned porous emitter is luminous, so be preferred.Aforementioned luminous be to carry out at least a gas atmosphere in being selected from atmosphere, oxygen, nitrogen and inert atmosphere and depressed gas.In addition, preferably after applying the electric field of polarization reversal between the aforementioned pair of electrodes, between at least one electrode of other electrode and aforementioned pair of electrodes, apply alternating electric field.

Light-emitting component of the present invention is the light-emitting component that contains the porous luminous element, is formed by the porous luminous element that contains the insulating properties fluorophor particle, and its formation is: apply the electric field more than or equal to regulation on aforementioned porous luminous element, so that electric charge moves.

In addition, light-emitting component of the present invention is to contain the light-emitting component that electronics is emitted body, porous luminous element and pair of electrodes, the porous luminous element contains the inorganic phosphor particle, and the porous luminous element is configured to, and to emit body adjacent with electronics, so that the porous luminous element is emitted the electron irradiation that body produces from electronics, pair of electrodes is provided with in the mode that at least a portion to aforementioned porous luminous element applies electric field.

As mentioned above, emit the body ejected electron, between aforementioned pair of electrodes, apply alternating electric field, make the electronics avalanche type ground in the porous emitter that emits produce creeping discharge by electronics.Consequently, make aforementioned porous luminous element luminous by the electron excitation luminescence center of emitting.In addition, also can use DC electric field to replace aforementioned alternating electric field.

Below, with reference to accompanying drawing embodiment of the present invention are described.

(embodiment 1)

Describe with reference to Fig. 1～Fig. 6.In this example, light-emitting component is that the aggregate by a plurality of porous emitter forms, wherein, on a surface of aforementioned porous luminescent layer, form the dielectric layer and first electrode respectively, configuration second electrode has the discharge separating mechanism between aforementioned a plurality of porous luminescent layers on another face of aforementioned dielectric layer of not forming of aforementioned porous luminescent layer and aforementioned first electrode.Particularly, in light-emitting component, a part of porous luminescent layer in a plurality of emitter has dielectric layer, and the discharge separating mechanism forms by the next door.

Fig. 1 is the cutaway view of the light-emitting component in embodiment of the present invention, and Fig. 2～Fig. 6 is the figure of manufacturing process of the light-emitting component of explanation the present embodiment.In these figure, the 1st, light-emitting component, the 2nd, porous luminescent layer, the 3rd, fluorophor particle, the 4th, insulating barrier, the 5th, substrate, 6 is first electrode (backplates), 7 is second electrode (sightingpiston electrodes), the 8th, light-transmitting substrate, the 9th, gap (gas blanket), the 10th, dielectric layer, the 11st, next door.

As shown in Figure 2, on the one side of the sintered body of the dielectric 10 of thickness 0.3～1.0mm, sintering Ag sticks with paste, and makes thickness reach 30 μ m, and first electrode is formed the regulation shape.Then, as shown in Figure 3, on the substrate 5 of glass or ceramic, bonding formation shown in Figure 2 the dielectric layer of electrode.

In the present embodiment, use BaTiO ₃As dielectric, use SrTiO ₃, CaTiO ₃, MgTiO ₃, PZT (PbZrTiO ₃), PbTiO ₃Deng dielectric, also can obtain same effect.Perhaps use Al ₂O ₃, MgO, ZrO ₂Also can obtain same effect Deng dielectric, but compare with the bigger aforementioned dielectric of dielectric constant, luminous intensity dies down.This can improve by the thinner thickness that makes dielectric layer.

In addition, on dielectric layer, also can form dielectric layer by film formation methods such as sputter, CVD, evaporation equimolecular method of piling or sol-gel process methods.When using sintered body as dielectric layer, it can be used as substrate 5 simultaneously.Sizable change takes place in the thickness of dielectric layer in the situation of the situation of using sintered body and the formation of use thick film forming method.But in fact capacitance characteristic is necessary, by regulating with the relation of dielectric constant.

Then, as shown in Figure 4, on dielectric layer 10, form a plurality of porous luminescent layers 2 with the regulation shape by silk screen printing.

As shown in Figure 6, porous luminescent layer 2 is prepared fluorophor particle 3 according to following main points, and the surface of this particle is covered by the insulating barrier 4 that metal oxides such as MgO form.

Can use average grain diameter as fluorophor particle 3 is the BaMgAl of 2～3 μ m ₁₀O ₁₇: Eu ²⁺(indigo plant), Zn ₂SiO ₄: Mn ²⁺(green), YBO ₃: Eu ³⁺Inorganic compounds such as (red).The method that forms the insulating barrier 4 that is formed by MgO on its surface all is general to fluorophor particle arbitrarily, particularly, in Mg precursor chelate solution, add fluorophor particle 3, stir through long-time, after taking out fluorophor particle and drying then, in atmosphere, under 400～600 ℃, heat-treat, form the even coating layer of MgO thus on the surface of fluorophor particle 3, just insulating barrier 4.

In the present embodiment, above-mentioned fluorophor particle with respect to 50 weight % with insulating barrier 4, mix 45 weight % terpineols (α-terpineol), 5 weight % ethyl celluloses and form thickener, prepare this thickener respectively for each fluorophor, as shown in Figure 4, after using this thickener silk screen printing as the regulation shape, dry also repeat this operation several times, the thickness adjusted with the porous luminescent layer that prints is 80～100 μ m thus.

In addition, for luminous from the porous luminescent layer, as shown in Figure 4, general method is: red in order to obtain (R), green (G) and blue (B's) is luminous, respectively with the porous luminescent layer according to various glow colors successively with the pattern of regulation (for example, striated) printing, the porous luminescent layer that formation rule is arranged also can form the luminescent layer of the coloured light that obtains turning white, and passes through colour filter afterwards, carry out color separated, obtain desirable glow color thus.

As mentioned above, be printed with the substrate 5 of porous luminescent layer at last at N ₂In the atmosphere, under 400～600 ℃, carry out 2～5 hours heat treatment, form the aggregate of the thick porous luminescent layer 2 of about 50～80 μ m.

In addition, aforementioned thickener adds organic bond or organic solvent and obtains in fluorophor particle, uses to have added the thickener that the cataloid aqueous solution obtains in fluorophor particle, also can obtain same effect.

Fig. 6 is the schematic diagram with the section amplification of the porous luminescent layer 2 in the present embodiment, and the fluorophor particles 3 that the insulating barrier 4 that is formed by MgO evenly covers are implemented heat treatment, and its result shows that each particle forms the porous luminescent layer with the state that is in contact with one another.

In the present embodiment, heat treatment temperature is set than the lowland, so that the porosity of porous luminescent layer becomes is big, its apparent porosity is more than or equal to 10% and less than 100% scope.If it is very big that porosity becomes, and be reached for 100% sparse state, then become luminous efficiency and reduce, perhaps become the inner reason that produces atmospherical discharges of porous luminescent layer, so not preferred.Otherwise, if porosity less than 10%, then hinders the generation of creeping discharge.By the way, creeping discharge produces at the interface of gas (be the space this moment) and insulator solid (fluorophor particle), if apparent porosity is little, the space disappears, and is difficult to produce creeping discharge.Otherwise, if it is big that apparent porosity becomes, then as previously mentioned, it is big that the mean free path of electronics becomes, so creeping discharge is difficult to produce), apparent porosity is more than or equal to 10% and during less than 100% scope, according to inferring, fluorophor particle is similar to a state of contact, to such an extent as to present three-dimensional contiguous between the particle.

Then, in the aggregate that forms by porous luminescent layer 2, stick with paste, and make it dry, repeat this operation several times, under 600 ℃, heat-treat then, as shown in Figure 5, form the next door 11 of about 80～300 μ m in the border of porous luminescent layer silk-screened glasses.In embodiments of the invention, next door 11 forms after forming the porous luminescent layer.But also can form the next door earlier.In addition, next door 11 also can use the glass paste and the resin that contain ceramic particle to form.Particularly, in the former method, stuff and other stuff with respect to pottery and the glass (weight ratio 1: 1) of 50 weight %, α-the terpineol that adds 50 weight %, after thickener silk screen printing after mixing is predetermined pattern, make it dry, repeat this operation, with the thickness adjusted of printing is about 100～350 μ m, at N ₂In the atmosphere, under 400～600 ℃, heat treatment 2～5 hours can form the thick next door 11 of about 80～300 μ m thus.In the latter's method, use heat-curing resin to form the next door by the following method, main component can be used epoxy resin, phenolic resins, isocyanate resin, can be by a kind of in them is screen-printed in the space of porous luminescent layer.

As mentioned above, after forming next door 11, by cover the whole aggregate of porous luminescent layer with light-transmitting substrates such as preformed glass plate 8, so that second electrode 7 that is formed by ITO (indium-tin-oxide alloy) is positioned at towards the position of porous luminescent layer, then can obtain the light-emitting component 1 of the present embodiment as shown in Figure 1.At this moment, use cataloid, waterglass or resin etc. that light-transmitting substrate 8 is fitted on the next door 11, so that between the porous luminescent layer 2 and second electrode 7, produce small space.What the width of the vertical direction in the gap 9 of the porous luminescent layer 2 and second electrode 7 was suitable is the scope of 30～250 μ m, is preferably the scope of 40～220 μ m especially.As surpassing above-mentioned scope, then must apply high voltage, gas-insulated punctures the generation that causes primary electron, and is based on reasons such as economy and reliabilities, not preferred.In addition, at interval also can be less than above-mentioned scope, but spread all over the porous luminescent layer and carry out luminously in order evenly, to omit ground, ground, preferably have the get along well interval of second electrode contact of porous luminescent layer.

In addition, also can use light-transmitting substrate 8 that the light-transmitting substrate that has applied copper wiring replaces being formed by ITO as second electrode.Copper wiring is formed fine netted, and aperture opening ratio (not carrying out the whole relatively ratio of part of distribution) is 90%, and seeing through of light is poorer than the light-transmitting substrate with ITO film hardly.In addition, copper and ITO compare, because the resistance of copper is quite low, go far towards to improve luminous efficiency, so be suitable.In addition, as the metal that carries out trickle netted distribution, except copper, can also use gold, silver, platinum and aluminium.But, when using copper and aluminium, might oxidation, handle so must carry out resistance to oxidation.

As mentioned above, in the present embodiment, can make a kind of light-emitting component that forms by the aggregate of a plurality of porous luminescent layers, wherein, on a surface of aforementioned porous luminescent layer, form the dielectric layer and first electrode respectively, configuration second electrode wherein has the discharge separating mechanism on the another side that does not form aforementioned dielectric layer and aforementioned first electrode of aforementioned porous luminescent layer between aforementioned a plurality of porous luminescent layers; Particularly, between aforementioned a plurality of porous luminescent layers, as the discharge separating mechanism, form the next door, aforementioned dielectric layer is formed on the part of aforementioned a plurality of porous luminescent layers, so that dielectric layer is total by the part in a plurality of porous luminescent layers.

In the present embodiment, cover the surface of fluorophor particle 3 by the insulating barrier 4 that forms by MgO.Thus, can make the resistivity higher (10 of MgO ⁹Ω cm or more than), more effectively produce creeping discharge.When the resistivity of insulating barrier is low, be difficult to produce creeping discharge, sometimes may short circuit, so not preferred.According to this reason, preferably cover by the high insulating properties metal oxide of resistivity.Certainly, when the resistivity of employed fluorophor particle itself is high,, also be easy to generate creeping discharge even cover without the insulating properties metal oxide.As insulating barrier, except using above-mentioned MgO, can also use to be selected from Y ₂O ₃, Li ₂O, CaO, BaO, SrO, Al ₂O ₃, SiO ₂, ZrO ₂In at least a kind.The standard free energy of formation Δ G of these oxides _F0Very little (for example, at room temperature being-100kcal/mol or following) is stable material.In addition, so the material that these insulating barriers are resistivity height, discharge easily, be difficult to be reduced is when discharge; insulating barrier also is excellent as the reduction that suppresses fluorophor particle and the diaphragm of UV degradation; consequently, the durability of fluorophor also uprises, and is suitable.

In addition, in the formation of insulating barrier, except above-mentioned sol-gel process method, can also use physisorphtions such as chemiadsorption or CVD method, sputtering method, vapour deposition method, laser method, shear stress method.Preferred insulating barrier is a homogeneous, evenly and do not peel off, and when forming insulating barrier, it is highly important that fluorophor particle must be impregnated in the weak acid solutions such as acetic acid, oxalic acid, citric acid, washing sticks to the impurity on surface.

In addition, before forming insulating barrier, preferably with the particle of fluorophor in blanket of nitrogen, under 200～500 ℃, carry out the pre-treatment about 1～5 hour.This is because common fluorophor particle contains a large amount of adsorbed water or the crystallization water, if form insulating barrier with this state, then can reduce brightness or bring bad influence for the skew equivalent life character of luminescent spectrum.During with weakly acidic solution washing fluorophor particle, above-mentioned pre-treatment is carried out in washing fully again after washing.

In addition, in the heat treatment step that forms the porous luminescent layer, should be noted in the discussion above that heat treatment temperature and atmosphere.In the present embodiment, because in blanket of nitrogen, in 450～1200 ℃ temperature range, heat-treat, so the valence mumber of the rare earth atom that can not change in the fluorophor to be added.But, when under than the higher temperature of this temperature range, heat-treating, must be noted that the valence mumber that may change rare earth atom or produce the solid solution that forms by insulating barrier and fluorophor.

In addition, must be noted that also the apparent porosity of porous luminescent layer diminished when heat treatment temperature rose, if judge thus, best heat treatment temperature is preferably 450～1200 ℃.For heat-treating atmosphere, the preferred above-mentioned atmosphere that can not influence the valence mumber of the rare earth atom that in fluorophor particle, adds.

The thickness of insulating barrier is about 0.1～2.0 μ m in the present embodiment, can consider the average grain diameter of fluorophor particle and effectively produce creeping discharge to determine thickness again.In addition, if the average grain diameter of fluorophor is a submicron order, then can cover than unfertile land.If the insulating barrier thickening, then luminescent spectrum skew produces brightness reduction etc., and is therefore not preferred.Otherwise, if the insulating barrier attenuation can be inferred and is difficult to produce creeping discharge a little.Therefore, the average grain diameter of fluorophor particle and the thickness relationship of insulating barrier are 1 with respect to the former preferably, and the latter is 1/10～1/500 scope.

Then, with reference to Fig. 1 and Figure 17 the luminous effect of this light-emitting component 1 is described.

As shown in Figure 1, for driven light-emitting element 1, between first electrode 6 and second electrode 7, apply AC field.Between

electrode

6,7, dielectric layer 10, porous luminescent layer 2, gap (gas blanket) are shape in upright arrangement ground at thickness direction and exist.Therefore, the electric field that is applied and each electric capacity reciprocal proportional concentrates in the gap 9.Therefore, in the gap 9, produce the insulation breakdown of gas, produce primary electron (e-) 24 shown in Figure 17.Primary electron (e-) collides the fluorophor particle 3 and the insulating barrier 4 of porous luminescent layer 2, produces creeping discharge, and then produces secondary electron (e-) 25 in a large number.Thus, electronics that avalanche type ground produces and ultraviolet ray collide the luminescence center of fluorophor, excited fluophor particle 3 and luminous.In addition, by applying AC field, the polarization reversal in dielectric layer is repeated to carry out.Meanwhile, produce electronics, electric charge is injected the porous luminescent layer, the result produces creeping discharge.Apply electric field during in, creeping discharge continue to produce, the luminescence center that electronics that this moment, avalanche type ground produced and ultraviolet ray collide fluorophor, fluorophor particle 3 is excited, and is luminous thus.

In addition, change into square wave by the waveform of the AC field that will be applied from sine wave or sawtooth waveforms, or frequency is brought up to several thousand Hz from tens Hz, primary electron, secondary electron and ultraviolet emitting become very violent, thereby improve luminosity.In addition, along with the rising of the magnitude of voltage of AC field and produce blast wave.When the generation frequency of blast wave is sinusoidal wave, produce in the position that nestles up the peak, when be sawtooth waveforms or square wave, in the summit generation, along with the rising of the voltage of blast wave, luminosity is enhanced.If Once you begin creeping discharge also produces ultraviolet ray and visible rays,, preferably reduce voltage in the luminous back of beginning so must suppress the deterioration of the caused fluorophor particle 3 of these light.

In the present embodiment, thickness direction at the porous luminescent layer, apply the electric field (frequency: 1kHz) make fluorophor particle 3 luminous of about 0.72～1.5kV/mm, afterwards, by applying the alternating electric field (frequency: 1Hz) of about 0.5～1.0kV/mm, creeping discharge is proceeded, and it is luminous that fluorophor particle 3 is continued.If the electric field that applies is bigger, then can promote electronics and ultraviolet generation, if the electric field that applies is less, then electronics and ultraviolet generation are insufficient.

In addition, current value during discharge is 0.1mA or following, and following situation has obtained affirmation, if begin luminous, even then voltage is reduced to about 50～80% when applying, also can continue luminously, any light time in sending three kinds of colors, it is the luminous of high brightness, high-contrast, high identity, high reliability.

In the present embodiment, though be in atmosphere, to drive, through confirming that implementing in oxygen, nitrogen and inert gas or in the depressed gas also can be similarly luminous.

According to light-emitting component according to the present embodiment, because it is by creeping discharge and luminous in the porous luminescent layer, so film forming method in the time of can not using existing light-emitting component to make, do not need vacuum system and charge carrier dynode layer, therefore simple in structure, it is also easy to make and process.And, can provide luminous efficiency good, the light-emitting component that the power consumption when being used for giant display is smaller.In the present embodiment, by the next door is set on the border of porous luminescent layer as discharge separating mechanism, the interference in the time of just can avoiding luminous with fairly simple method thus.

(embodiment 2)

Describe with reference to Fig. 7.This example is the light-emitting component that the aggregate by a plurality of porous luminescent layers forms, wherein, on a surface of aforementioned porous luminescent layer, form the dielectric layer and first electrode respectively, configuration second electrode on another face of aforementioned dielectric layer of not forming of aforementioned porous luminescent layer and aforementioned first electrode, wherein, have the discharge separating mechanism between aforementioned a plurality of porous luminescent layers, particularly, the discharge separating mechanism is the next door.Fig. 7 is the cutaway view of the light-emitting component in embodiment of the present invention, the 1st, light-emitting component, the 2nd, porous luminescent layer, the 3rd, fluorophor particle, the 4th, insulating barrier, the 5th, substrate, 6 is first electrode (backplates), 7 is second electrode (sightingpiston one lateral electrodes), the 8th, light-transmitting substrate, the 9th, gap (gas blanket), the 10th, dielectric layer, the 11st, next door.

In previous embodiments 1, as shown in Figure 1, the formed dielectric layer 10 and first electrode 6 are common by a plurality of porous luminescent layers under the porous luminescent layer, but the dielectric layer and first electrode also can form respectively on a plurality of porous luminescent layers.The light-emitting component of the present embodiment is a formation as described below, and its cross-section structure as shown in Figure 7.

Light-emitting component in the present embodiment can be by the manufacture method manufacturing same with embodiment 1.In fact, the porous luminescent layer forms the pattern form of regulation, and matches with the position that is disposed, and at first, sintering Ag sticks with paste, and forms first electrode 6, by after the formation dielectric layer such as thick film, can form the porous luminescent layer by silk screen printing thereon.Then, if after similarly forming the next door with embodiment 1, configuration at last has the light-transmitting substrate 8 of second electrode, then can make the light-emitting component of the present embodiment shown in Figure 7.

The luminous effect of this light-emitting component 1 then, is described with reference to Fig. 7.As shown in Figure 7, for driven light-emitting element 1, between first electrode 6 and second electrode 7, apply AC field.By applying AC field, produce gas-insulated in the gap 9 and puncture, meanwhile, produce electronics, iunjected charge in the porous luminescent layer consequently produces creeping discharge.Apply electric field during in, creeping discharge continue to produce, the luminescence center that electronics that this moment, avalanche type ground produced and ultraviolet ray collide fluorophor, fluorophor particle 3 is excited, and is luminous thus.

In addition, waveform by the AC field that will be applied is changed into square wave from sine wave or sawtooth waveforms, or frequency brought up to several thousand Hz from tens Hz, the electronics or ultraviolet the emitting more tempestuously that are produced by creeping discharge are produced, thereby improve luminosity.In addition, along with the rising of the magnitude of voltage of AC field and produce blast wave.When the generation frequency of blast wave is sinusoidal wave, produce in the position that nestles up the peak, when be sawtooth waveforms or square wave, in the summit generation, along with the rising of the voltage of blast wave, luminosity is enhanced.If Once you begin creeping discharge also produces ultraviolet ray and visible rays,, preferably reduce voltage in the luminous back of beginning so must suppress the deterioration of the fluorophor particle 3 that these light cause.

In the present embodiment,, apply the electric field of about 0.72～1.5kV/mm with respect to the thickness of porous luminescent layer, make fluorophor particle 3 luminous, apply the alternating electric field of about 0.5～1.0kV/mm afterwards, creeping discharge is continued, and it is luminous that fluorophor particle 3 is continued.If the electric field that applies is bigger, then can promote electronics and ultraviolet generation, if the electric field that applies is less, then electronics and ultraviolet generation are insufficient.

In the present embodiment, though be in atmosphere, to drive, through confirming that implementing in oxygen, nitrogen and inert atmosphere and in the depressed gas also can be similarly luminous.

Light-emitting component according to the present embodiment, because it is by creeping discharge and luminous, so the film forming method can not use existing light-emitting component to make the time does not need vacuum system and charge carrier dynode layer in the porous luminescent layer, therefore simple in structure, it is also easy to make and process.And, can provide luminous efficiency good, the light-emitting component that the power consumption when being used for giant display is smaller.In the present embodiment, the next door is set as discharge separating mechanism, the interference in the time of just can avoiding luminous by fairly simple method thus by border at the porous luminescent layer.

(embodiment 3)

With reference to Fig. 8 the light-emitting component of the present embodiment is described.This element is the light-emitting component that the aggregate by a plurality of porous luminescent layers forms, wherein, on a surface of aforementioned porous luminescent layer, form the dielectric layer and first electrode respectively, configuration second electrode on another face of aforementioned dielectric layer of not forming of aforementioned porous luminescent layer and aforementioned first electrode, wherein, have the discharge separating mechanism between aforementioned a plurality of porous luminescent layers, the discharge separating mechanism is the next door with conductivity.

Fig. 8 is the cutaway view of the light-emitting component in embodiment of the present invention, in the drawings, the 1st, light-emitting component, the 2nd, the porous luminescent layer, the 3rd, fluorophor particle, the 4th, insulating barrier, the 5th, substrate, 6 is first electrode (backplates), 7 is second electrode (sightingpiston one lateral electrodes), the 8th, and light-transmitting substrate, the 9th, gap (gas blanket), the 10th, dielectric layer, the 11st, next door.

As mentioned above, in the present embodiment, the next door 11 conduct discharge separators that use electrostatic screen and the prolongation of creeping discharge is had the conductivity of effect.Such conductivity next door can form by various metal precipitates or deposit, as its example, describes with regard to the method for using the chemical nickel plating to form.

The manufacture method of concrete light-emitting component is following carries out.At first, on the surface of the substrate 5 of ceramic, remove the position that forms the next door, on the position beyond this, form diaphragm by silk screen printing.Then, substrate 5 is flooded in the solution that is formed by stannic chloride and palladium bichloride.This processing is called catalysis/sensitization to be handled, and comprises pre-process and post-process, can easily carry out by commercially available inorganic agent.

If after processing, peel off diaphragm, only adhere to the palladium particulate in the position that forms the next door.Being impregnated into the ceramic substrate 5 after handling like this with nickelous sulfate and inferior sodium phosphate is in the solution (pH4～6) of principal component, under the temperature about 90 ℃, separates out the thick metallic nickel of 80～300 μ m, can form the next door 11 of regulation shape on substrate 5 surfaces.As mentioned above, can obtain being formed with the ceramic substrate 5 in conductivity next door 11.

Then, sintering Ag sticks with paste on aforesaid substrate 5, forms first electrode 6.At this moment, do not contact conductivity next door 11, be provided with and form small gap in order to make first electrode 6.After forming first electrode 6, on first electrode 6, form dielectric layer 10 by thick film etc.Then, silk screen printing contains the surface with the even thickeners that contain fluorophor particle 3 of coverings of insulating barrier 4, and sintering also forms the porous emitter 2 of predetermined pattern.At last, the glass light-transmitting substrate 8 that has as the ITO film of second electrode 7 with the surface covers the whole aggregate of porous luminescent layers, thereby obtains light-emitting component shown in Figure 81.In addition, be provided with small gap for second electrode that is formed by ITO is not contacted with the conductivity next door this moment, so that light-emitting component when driving can not hinder voltage application.

As mentioned above, in the present embodiment, can obtain forming light-emitting component by the aggregate of a plurality of porous luminescent layers, wherein, on a surface of aforementioned porous luminescent layer, form the dielectric layer and first electrode respectively, configuration second electrode on another face of aforementioned dielectric layer of not forming of aforementioned porous luminescent layer and aforementioned first electrode, wherein, have the discharge separating mechanism between aforementioned a plurality of porous luminescent layers, the separating mechanism that particularly discharges is the next door with conductivity.

The luminous effect of this light-emitting component 1 then, is described with reference to Fig. 8.For the light-emitting component 1 that drives Fig. 8, between first electrode 6 and second electrode 7, apply AC field.By applying AC field, in gap 9, cause the insulation breakdown of gas, meanwhile, produce electronics, iunjected charge in the porous luminescent layer consequently, produces creeping discharge.Apply electric field during in, creeping discharge continue to produce, the luminescence center that electronics that this moment, avalanche type ground produced and ultraviolet ray collide fluorophor, fluorophor particle 3 are excited and luminous.

In addition, waveform by the AC field that will be applied is changed into square wave from sine wave or sawtooth waveforms, or frequency brought up to several thousand Hz from tens Hz, the electronics or ultraviolet the emitting more tempestuously that are produced by creeping discharge are produced, thereby improve luminosity.In addition, along with the rising of the magnitude of voltage of AC field and produce blast wave.When the generation frequency of blast wave is sinusoidal wave, produce in the position that nestles up the peak, when be sawtooth waveforms or square wave, in the summit generation, along with the rising of the voltage of blast wave, luminosity is enhanced.If Once you begin creeping discharge also produces ultraviolet ray and visible rays,, preferably reduce voltage in the luminous back of beginning so must suppress the deterioration of the fluorophor particle 3 that these light caused.

Particularly, when as the present embodiment, forming the conductivity next door, be easy to generate creeping discharge, can reduce driving voltage.Just, with respect to the thickness of porous luminescent layer, apply the electric field of about 0.58～1.2kV/mm, make fluorophor particle 3 luminous, afterwards, by applying the alternating electric field of about 0.4～0.8kV/mm, creeping discharge is proceeded, and it is luminous that fluorophor particle 3 is continued.If the electric field that applies is bigger, then can promote electronics and ultraviolet ray to produce, if the electric field that applies is less, then electronics and ultraviolet generation are insufficient.

Light-emitting component according to the present embodiment, because it is luminous by creeping discharge in the porous luminescent layer, so the film forming method can not use existing light-emitting component to make the time does not need vacuum system and charge carrier dynode layer, therefore simple in structure, it is also easy to make and process.And, can provide luminous efficiency good, the light-emitting component that the power consumption when being used for giant display is smaller.In the present embodiment, the next door is set as discharge separating mechanism, the interference in the time of just can avoiding luminous by fairly simple method thus by border at the porous luminescent layer.

(embodiment 4)

With reference to Fig. 9～Figure 13 following light-emitting component, particularly a plurality of porous luminescent layers are disposed in the mode that has second electrode, the discharge separating mechanism is that the light-emitting component in space describes, light-emitting component is that the aggregate by a plurality of porous luminescent layers forms, wherein, on a surface of aforementioned porous luminescent layer, form the dielectric layer and first electrode respectively, configuration second electrode on another face of aforementioned dielectric layer of not forming of aforementioned porous luminescent layer and aforementioned first electrode, wherein, between aforementioned a plurality of porous luminescent layers, has the discharge separating mechanism.

Fig. 9 is the cutaway view of the light-emitting component in embodiment of the present invention, and Figure 10～Figure 13 is the figure of manufacturing process of the light-emitting component of explanation the present embodiment.In these figure, the 1st, light-emitting component, the 2nd, porous luminescent layer, the 3rd, fluorophor particle, the 4th, insulating barrier, the 5th, substrate, 6 is first electrode (backplates), 7 is second electrode (sightingpiston one lateral electrodes), the 8th, light-transmitting substrate, the 9th, gap (gas blanket), the 10th, dielectric layer, the 12nd, the space of separation porous emitter, the 15th, sidewall.

As shown in figure 10, on the one side of the substrate 5 of glass or ceramic, sintering Ag sticks with paste first electrode 6 is formed the regulation shape.Then, as shown in figure 11, on first electrode 6, by formation dielectric layer 10 such as thick film.

Then, on dielectric layer 10, form the porous luminescent layer 2 of regulation shape.At this moment, with embodiment 1 similarly, use the fluorophor particle 3 of insulating barrier 4 covering surfaces that form by metal oxides such as MgO.Can use average grain diameter as fluorophor particle 3 is the BaMgAl of 2～3 μ m ₁₀O ₁₇: Eu ²⁺(indigo plant), Zn ₂SiO ₄: Mn ²⁺(green), YBO ₃: Eu ³⁺Inorganic compounds such as (red).

In the present embodiment, above-mentioned fluorophor particle with respect to 50 weight % with insulating barrier 4, for each fluorophor, prepare 45 weight % α-terpineols respectively mixing, 5 weight % ethyl celluloses and the thickener that obtains, after being screen-printed to it on dielectric layer 10, carry out drying, repeat this operation several times, the thickness adjusted with printed position is 80～100 μ m thus.

As mentioned above, at N ₂In the atmosphere, the substrate 5 that has printed the porous luminescent layer is carried out heat treatment in 2～5 hours under 400～600 ℃, as shown in figure 12, on substrate, form the aggregate that is about the thick porous luminescent layer 2 of 50～80 μ m.

Then, the present embodiment is characterised in that, on the border of the aggregate that is formed by porous luminescent layer 2, the next door is not set, and the space 12 of residual about 80～300 μ m under this state, is used this space to replace the next door and worked.In addition, in the present embodiment, form sidewall 15, so by the sidewall such light-transmitting substrate 8 that supports as described later around aforementioned aggregate according to whole mode around the aggregate that forms by porous luminescent layer 2.Sidewall 15 following formation: repeat the operation that its drying was stuck with paste, made to the several silk-screened glasses,, form the sidewall 15 of about 80～300 μ m as shown in figure 13 thus then at 60 ℃ of following sintering.

In addition, sidewall 15 also can use the glass paste and the resin that contain ceramic particle to form.Particularly, if make glass paste, with respect to the stuff and other stuff of pottery and the glass (weight ratio is counted 1: 1) of 50 weight %, α-the terpineol that adds 50 weight % mixes, after the mixing thickener silk screen printing that obtains, and drying, repeat this operation, print thickness is adjusted to about 100～350 μ m, at N ₂In the atmosphere,, form the thick sidewall 15 of about 80～300 μ m thus 400～600 ℃ of following heat treatments 2～5 hours.If use resin, use heat-curing resin to form the next door,, can use epoxy resin, phenolic resins, isocyanate resin as main component, can be by selecting a kind in these resins, print in mode around the whole aggregate of porous luminescent layer.

As mentioned above, after forming sidewall 15, the light-transmitting substrates 8 such as second electrode, 7 formed glass plates of fitting on sidewall 15 and being formed by ITO (indium-tin-oxide alloy), the whole aggregate of covering porous luminescent layer then can obtain the light-emitting component 1 of the present embodiment shown in Figure 9.At this moment, as shown in the figure, second electrode 7 for example forms towards the porous luminescent layer and with striated ground, and it is common by a plurality of porous luminescent layers.In addition, between the porous luminescent layer 2 and second electrode 7 small gap is set, both 30～250 μ m that are spaced apart make suitablely, are preferably 40～220 μ m especially.

In addition, the substrate that also can Butut be formed with the netted fine distribution that use will form by copper, gold, silver, platinum and aluminium etc. as second electrode replaces the light-transmitting substrate 8 that formed by ITO.

As mentioned above, can make the light-emitting component that the aggregate by a plurality of porous luminescent layers constitutes, wherein, on a surface of aforementioned porous luminescent layer, form the dielectric layer and first electrode respectively, configuration second electrode wherein, has the discharge separating mechanism on the another side that does not form the aforementioned dielectric layer and first electrode of aforementioned porous luminescent layer between aforementioned a plurality of porous luminescent layers, particularly second electrode to be being disposed by the shared mode of a plurality of porous luminescent layers, and the discharge separating mechanism is the space.

Then, with reference to Fig. 9 the luminous effect of this light-emitting component 1 is described.As shown in Figure 9, for driven light-emitting element 1, apply AC field at

first electrode

6 and 7 at second electrode.By applying AC field, in gap 9, produce gas-insulated and puncture, meanwhile, produce electronics, iunjected charge in the porous luminescent layer consequently, produces creeping discharge.Apply electric field during in, creeping discharge continue to produce, the luminescence center that electronics that this moment, avalanche type ground produced and ultraviolet ray collide fluorophor, fluorophor particle 3 are excited and luminous.

In the present embodiment,, apply the electric field of about 0.85～1.8kV/mm with respect to the thickness of porous luminescent layer, make fluorophor particle 3 luminous, apply the alternating electric field of about 0.6～1.2kV/mm afterwards, creeping discharge is proceeded, and it is luminous that fluorophor particle 3 is continued.If the electric field that applies is bigger, then can promote electronics and ultraviolet ray to produce, if the electric field that applies is less, then electronics and ultraviolet generation are insufficient.

In the present embodiment, though be in atmosphere, to drive, through confirming that implementing in oxygen, nitrogen and inert atmosphere or in the depressed gas also can be similarly luminous.

Light-emitting component according to the present embodiment, because it is luminous by creeping discharge in the porous luminescent layer, so the film forming method can not use existing light-emitting component to make the time does not need vacuum system and charge carrier dynode layer, therefore simple in structure, it is also easy to make and process.And, can provide luminous efficiency good, the light-emitting component that the power consumption when being used for giant display is smaller.In the present embodiment, the space is set as discharge separating mechanism, the interference in the time of therefore just can avoiding luminous by fairly simple method thus by border at the porous luminescent layer.

(embodiment 5)

With reference to Figure 14 and 15, to the following light-emitting component that forms by the aggregate of a plurality of porous luminescent layers, particularly the porous luminescent layer describes, this light-emitting component is: form the dielectric layer and first electrode respectively on a surface of aforementioned porous luminescent layer, configuration second electrode has the discharge separating mechanism between aforementioned a plurality of porous luminescent layers on another face of aforementioned dielectric layer of not forming of aforementioned porous luminescent layer and aforementioned first electrode.

Figure 14 and Figure 15 are the schematic diagrames with the section amplification of the porous luminescent layer of the present embodiment.In these figure, the 2nd, porous luminescent layer, the 3rd, fluorophor particle, the 4th, insulating barrier, the 18th, insulating properties fiber.

In the present embodiment, no matter the fluorophor particle surface has or not insulating barrier, can be formed with the porous luminescent layer 2 that is formed by insulating properties fibers 18 such as fluorophor particle and pottery or glass.

An example as insulating properties fiber 18 can use SiO ₂-Al ₂O ₃-CaO fibrid, its diameter is preferably 0.1～5 μ m, length is preferably 0.5～20 μ m, ratio with fluorophor particle 2 weight portions, fiber 1 weight portion, use after the fiber mixing with this size range, porosity becomes bigger thus, consequently, at the inner creeping discharge that produces of porous luminescent layer, be preferred easily.In the present embodiment, when forming the porous luminescent layer, preparation is with respect to 50 weight % fluorophor particles and insulating properties mixture, the thickener of mixing 45 weight % α-terpineols, 5 weight % ethyl celluloses, with embodiment 1 be pattern-like similarly with the thickener silk screen printing, form the porous luminescent layer.Schematic diagram such as Figure 14 and shown in Figure 15 that the section of the porous luminescent layer that contains insulating properties fiber 18 that so obtains is amplified.Figure 15 is the porous luminescent layer 2 that is formed by fluorophor particle 3 and insulating properties fiber 18, and Figure 14 is fluorophor particle 3 and the fibroplastic porous luminescent layer of insulating properties that is covered with insulating barrier 4 by the surface.In addition, first electrode, dielectric layer, second electrode and next door can form by the method identical with embodiment 1, make final light-emitting component (not shown) similarly to Example 1.

Select SiO ₂-Al ₂O ₃-CaO fibrid is this fiber heat, chemically stable as the reason of insulating properties fiber, and resistivity is 10 ⁹Ω cm or more than; In the porous luminescent layer, obtain easily more than or equal to 10% and less than 100% bigger apparent porosity; And easily at the fiber creeping discharge, thereby can in whole porous luminescent layer, produce creeping discharge.In addition, except above-mentioned insulating properties fiber, use and contain SiC, ZnO, TiO ₂, MgO, BN, Si ₃N ₄Be the insulating properties fiber of material, also can obtain roughly the same result.

Then, the luminous effect of this light-emitting component is identical with the luminous effect of the light-emitting component of embodiment 1.For driven light-emitting element, between first electrode and second electrode, apply AC field.By applying AC field, in gap 9, produce gas-insulated and puncture, meanwhile, produce electronics, iunjected charge in the porous luminescent layer consequently, produces creeping discharge.Apply electric field during in, creeping discharge continue to produce, the luminescence center that electronics that this moment, avalanche type ground produced and ultraviolet ray collide fluorophor, fluorophor particle 3 are excited and luminous.

In the present embodiment,, apply the electric field of about 0.65～1.4kV/mm with respect to the thickness of porous luminescent layer, make fluorophor particle 3 luminous, apply the alternating electric field of about 0.45～0.90kV/mm afterwards, creeping discharge is proceeded, and it is luminous that fluorophor particle 3 is continued.If the electric field that applies is bigger, then can promote electronics and ultraviolet generation, if the electric field that applies is less, then electronics and ultraviolet generation are insufficient.

Light-emitting component according to the present embodiment, since its be in the porous luminescent layer by creeping discharge produce luminous, so film forming method in the time of can not using existing light-emitting component to make, do not need vacuum system and charge carrier dynode layer, therefore simple in structure, it is also easy to make and process.And, can provide luminous efficiency good, the light-emitting component that the power consumption when being used for giant display is smaller.In the present embodiment, the next door is set as discharge separating mechanism, the interference in the time of just can avoiding luminous by fairly simple method thus by border at the porous luminescent layer.

(embodiment 6)

With reference to Figure 16 the action of the following light-emitting component that is formed by the aggregate of a plurality of porous luminescent layers is described, this light-emitting component is: form dielectric layer and addressing electrode respectively on a surface of aforementioned porous luminescent layer, configuration data electrode on another face of aforementioned dielectric layer of not forming of aforementioned porous luminescent layer and aforementioned addressing electrode has the discharge separating mechanism between aforementioned a plurality of porous luminescent layers.

Figure 16 is the decomposition diagram of the light-emitting component of the present embodiment, for easy understanding, and the light-emitting component when diagram discharge separating mechanism is the space.In the drawings, the 1st, light-emitting component, the 2nd, porous luminescent layer, the 5th, substrate, the 8th, light-transmitting substrate, the 10th, dielectric layer, the 12nd, space, the 21st, addressing electrode, the 22nd, show electrode.

As shown in figure 16, in the light-emitting component 1 of the present embodiment, form addressing electrode 21 on substrate 5, configuration has a plurality of porous luminescent layers 2 of dielectric layer 10 regularly thereon, and is formed with the porous luminescent layer array of the light that sends R, G and three kinds of colors of B.Between the porous luminescent layer, there is space 12, and usually sidewall (not shown) is set in mode around the array of whole porous luminescent layer 2.In light-transmitting substrate 8, show electrode 22 is relative to ground formation with porous luminescent layer 2, so that show electrode 22 and addressing electrode 21 intersect, by this light-transmitting substrate 8 of configuration on the array of porous luminescent layer, finally constitutes light-emitting component shown in Figure 16 1.Addressing electrode in the present embodiment and show electrode also can correspond respectively to first electrode and second electrode of the embodiment of having narrated 1～5, according to circumstances can be provided with in addition.

As mentioned above, can obtain the following light-emitting component that the aggregate of a plurality of porous luminescent layers by configuration constitutes, wherein, on a surface of aforementioned porous luminescent layer, form dielectric layer and addressing electrode respectively, configuration data electrode on another surface of aforementioned dielectric layer of not forming of aforementioned porous luminescent layer and aforementioned addressing electrode, have the light-emitting component of discharge separating mechanism between aforementioned a plurality of porous luminescent layers, the separating mechanism that particularly obtains discharging is the light-emitting component in space.

In the light-emitting component 1 in the present embodiment that so constitutes, can in the porous luminescent layer, show the image of 2 dimensions.Just, the light-emitting component 1 of the present embodiment can be that so-called simple matrix drives, successively pulse signal is sent to the X electrode, be complementary constantly ON/OFF information input Y electrode with this, it is luminous that the pixel of addressing electrode and show electrode crossover location is carried out according to ON/OFF, shows 1 row.By switched scan pulse successively, can show 2 dimension images.In addition, in the pixel of rectangular configuration one by one, transistor is set, is respectively ON/OFF, also can actively drive thus by making pixel.In the present embodiment, because space 12 is set in the porous luminescent layer, thus almost there is not luminous interference, but as described in the enforcement scheme 1,, also can almost completely avoid luminous interference if between the unit light-emitting component, the next door is set.

(embodiment 7)

The section of the display unit of the present embodiment as shown in figure 18.The present embodiment is provided with between next door 11 rib 23a, the 23b, and is identical with embodiment 1 shown in Figure 1.The thickness of the horizontal direction in next door 11 is 150 μ m, highly is 270 μ m, the thickness of

rib

23a, 23b is 50 μ m, highly is 250 μ m that the width of 1 pixel is 100 μ m, and the thickness of porous luminescent layer is 230 μ m, the gap in gap (gas blanket) 9 is 20 μ m, by BaTiO ₃The thickness of the dielectric layer 10 that forms is 250 μ m, and 7 distance of the 1st electrode 6 and the 2nd electrode is 500 μ m.

In the present embodiment, thickness direction at the porous luminescent layer, apply the electric field (frequency: 1Hz) of about 0.72～1.5kV/mm, make fluorophor particle 3 luminous, apply the alternating electric field (frequency: 1Hz) of about 0.4kV/mm afterwards, creeping discharge is proceeded, and it is luminous that fluorophor particle 3 is continued.If the electric field that applies is bigger, then can promote electronics and ultraviolet ray to produce, if the electric field that applies is less, then electronics and ultraviolet generation are insufficient.

(embodiment 8)

The section of the display unit of the present embodiment as shown in figure 19.The present embodiment is except cutting by BaTiO ₃The dielectric layer 10 that forms forms beyond the next door 11, and is identical with embodiment 1 shown in Figure 1.The thickness of the horizontal direction in next door 11 is 150 μ m, highly is 270 μ m that the width of 1 pixel is 250 μ m, and the thickness of porous luminescent layer is 230 μ m, and the gap in gap 9 is 20 μ m, by BaTiO ₃The thickness of the dielectric layer 10 that forms is 520 μ m, and the 1st and the 2nd distance between electrodes is 500 μ m.

(comparative example 1)

As a comparative example 1, be implemented in the dipping of employed silicone oil in the insulation breakdown experiment of stacked die (chip) capacitor.Just, when measuring breakdown voltage, frequently produce creeping discharge, can't measure real breakdown voltage value by the stacked die capacitor.Therefore,, do not produce under the state of creeping discharge, try to achieve real breakdown voltage value making the pore portion dipping silicone oil of element.Use this method, change the gas of the pore of the porous emitter 2 of the light-emitting component 1 of Fig. 1 into silicone oil.Dipping is after a few minutes, and the silicone oil on wiping light-emitting component surface applies the alternating electric field identical with previous embodiments 1.

At first, can confirm then to produce blast wave, and emit primary electron from the gap if improve the voltage that applies.But, in porous emitter 2, do not produce creeping discharge.Perhaps, even produce creeping discharge, neither be in the inside of emitter 2, but produce on surface extremely, so can not confirm to have luminous.In addition, apply voltage if continue to improve, then porous emitter 2 produces insulation breakdown in a flash, produces slight crack, destruction in the light-emitting component 1.

Certainly, after having flooded the light-emitting component 1 usefulness acetone and other organic solvent washing of silicone oil, when once more gas being filled into pore portion, confirm, recover luminous easily.Certainly, even pore portion vacuum also can be luminous.

In addition,, then can produce short circuit, not have luminous fully if make for example aqueous acetic acid dipping pore portion of conductive solution.

As mentioned above, the maximum of the light-emitting component that forms with formation of the present invention is characterised in that: emitter 2 has continuous pores on the surface, and in this pore blanketing gas or be vacuum.If the electronics of emitting from the outside pours emitter 4 inside, then electronics causes creeping discharge along pore part with repeating avalanche type, and electronics is accelerated.Then, the tyco electronics that is accelerated is to the luminescence center of fluorophor, stimulated luminescence.Under the state of pore part filling silicon oil and conductive solution, electronics is difficult to move or short circuit occurs, does not produce creeping discharge, and is consequently not luminous.

In the present embodiment, the size of pore portion be the hundreds of micron or below, must note destroying element if, then may produce atmospherical discharges for several mm or above big.Rule of thumb, fluorophor particle 3 fills up in the mode of a contact.Preferably, apparent porosity is more than or equal to 10% and less than 100% porous mass.

In addition, embodiment reason that insulating barrier 4 is set like this is as described above:

A. be used to improve the sheet resistance of fluorophor particle 3, so that creeping discharge is easy to generate,

B. be used for from insulation breakdown and UV protection fluorophor particle,

C. be used for emitting more electronics, consequently, creeping discharge more be easy to generate by the effect of emitting of the such secondary electron of MgO.

In addition, there is no particular limitation for the thickness of porous emitter 2, and affirmation can be luminous in the scope of 10 μ m～3mm.Certainly, if do not produce short circuit, begin luminous from several microns thickness.

(embodiment 9)

In embodiment 9, describe with reference to the situation of 22 pairs first electrodes 6 of accompanying drawing and second electrode, 7 clamping dielectric layer 10 and porous emitter 2.Figure 22 is the cutaway view of the light-emitting component 1 in the present embodiment.6 is first electrodes, and 7 is second electrodes, the 3rd, and fluorophor particle, the 4th, electric insulation layer, the 2nd, porous emitter, the 10th, dielectric layer.As shown in Figure 6, as porous emitter 2, be that principal component constitutes with fluorophor particle 3, cover the surface of fluorophor particle 3 with insulator layer 4.

Desirable luminous in order to obtain, fluorophor particle 3 can average grain diameter be the BaMgAl of 2～3 μ m ₁₀O ₁₇: Eu ²⁺(indigo plant), Zn ₂SiO ₄: Mn ²⁺(green), YBO ₃: Eu ³⁺(red) these 3 kinds of inorganic compounds use or use their mixture separately.

In the present embodiment, use following material: use aforementioned blue emitting phophor particle 3, form the insulating barrier 4 of the insulating properties inorganic matter that forms by MgO on its surface.In Mg precursor chelate solution, add fluorophor particle and stir, take out drying after, in atmosphere, under 400～600 ℃, heat-treat, can form the even coating layer of aforementioned MgO shown in Figure 6 thus on the fluorophor surface.

At first, the manufacture method to the Figure 22 of the light-emitting component in the present embodiment describes.With the coating of 50 weight % the fluorophor particle powder 3 of insulating barrier 4 and the cataloid aqueous solution of 50 weight %, form thickener.Then, in the dielectric layer 10 of the diameter 15mm φ, the thick 1mm that form second electrode 7 (with BaTiO ₃Be the sheet sintered body of principal component, the thick Ag electrode paste of the about 50 μ m of its back side sintering forms first electrode 6) another side on, be coated with aforementioned thickener, with drying machine under 100～150 ℃, dry 10～30 minutes, the porous emitter 2 of the about 100 μ m of ulking thickness on dielectric layer 10.The stacked light-transmitting substrate 8 that has been coated with transparent second electrode 7 (indium-tin-oxide alloy (ITO), the about 0.1 μ m of thickness) on porous emitter 2 again.Thus, can obtain the light-emitting component 1 of pair of

electrodes

6,7 clamping dielectric layer 10 and porous emitter 2.

The luminous effect of this light-emitting component 1 then, is described with reference to Figure 22 and Figure 17.As shown in figure 22, for driven light-emitting element 1, between first electrode 6 and second electrode 7, apply AC field.By applying voltage, in dielectric layer 10, emit primary electron (e-) 24 by polarization reversal.At this moment, produce ultraviolet ray and visible light.Primary electron (e-) collides the fluorophor particle 3 of porous luminescent layer 2 and insulating barrier 4 and creeping discharge, and then produces secondary electron (e-) 25 in a large number.Thus, electronics that avalanche type ground produces and ultraviolet ray collide the luminescence center of fluorophor, and fluorophor particle 3 is excited, and is luminous thus.In addition, by applying AC field, the polarization reversal in dielectric layer is repeated to carry out.Meanwhile, produce electronics, iunjected charge in the porous luminescent layer consequently produces creeping discharge.Apply electric field during in, creeping discharge continue to produce, the luminescence center that electronics that this moment, avalanche type ground produced and ultraviolet ray collide fluorophor, fluorophor particle 3 is excited, and is luminous thus.

In addition, waveform by the AC field that will be applied is changed into square wave from sine wave or sawtooth waveforms, or frequency brought up to several thousand Hz from tens Hz, the electronics or ultraviolet the emitting more tempestuously that are produced by creeping discharge are produced, thereby improve luminosity.In addition, along with the rising of the magnitude of voltage of AC field and produce blast wave.When the generation frequency of blast wave is sinusoidal wave, produce, when be sawtooth waveforms or square wave, produce, so along with the rising of the voltage of blast wave, luminosity is enhanced at summit in the position that nestles up the peak.If Once you begin creeping discharge also produces ultraviolet ray and visible rays,, preferably reduce voltage in the luminous back of beginning so must suppress the deterioration of the fluorophor particle 3 that these light cause.

In the present embodiment, with respect to the thickness of porous luminescent layer 10, use AC power to apply the electric field of about 0.5～1.0kV/mm, emit primary electron (e-) 24 by polarization reversal, creeping discharge produces secondary electron (e ^-) 25, then begin luminous.In addition, the current value during discharge is 0.1mA or following.In addition, following situation has obtained affirmation, if begin luminously, even then voltage is reduced to about 50～80% when applying, also continues luminously, and it is the luminous of high brightness, high-contrast, high identity, high reliability.In addition, can make light-emitting device with the luminous efficiency about 2～51m/w.

In addition, in the present embodiment, though be in atmosphere, to drive, through confirming that implementing in oxygen, nitrogen and inert atmosphere or in the depressed gas also can be similarly luminous.

Light-emitting component 1 in the present embodiment is the structure that structurally is similar to inorganic EL (ELD), but constitutes different fully with mechanism.At first, for formation, background technology is put down in writing as described above, and the employed fluorophor of inorganic EL is with ZnS:Mn ²⁺, the luminous element that forms for the semiconductor of representative such as GaP:N, the fluorophor particle of the present embodiment 9 is any in insulator or the semiconductor.Just, even when using the extremely low semi-conductive fluorophor particle of resistance value, because the insulating barrier 4 of being insulated property inorganic matter evenly covers, thus can short circuit, and can produce creeping discharge continuously, thus luminous.In addition, for luminescent coating, the thickness of inorganic EL is sub-micron～several microns, and the present embodiment 9 is porous plastids of several microns～hundreds of micron.In addition, in the present embodiment 9, emitter is a porous material.

With the form that SEM (scanning electron microscope) observes porous material, can find that from its result fluorophor particle is the accumulation of some exposure level.

In addition, as fluorophor particle, what use now is the powder of employed luminescence-utraviolet in the plasma display (PDP), but through confirming employed ZnS:Ag (indigo plant) or ZnS:Cu, Au in the cathode ray tube (CRT), Al (green), Y ₂O ₃: Eu (red) also can be luminous equally.The fluorophor that CRT uses so be difficult to produce creeping discharge, if still be coated with insulator 4, then is easy to generate creeping discharge because resistance value is low, and is luminous easily.

In addition, the present invention is to be basic point with the electronics that the polarization reversal of dielectric is emitted, produce avalanche type ground and cause creeping discharge, thus luminous light-emitting component.Therefore, can think, if in porous emitter 2, add system with polarization reversal new function that makes tyco electronics in addition, then can be easily luminous.

In addition, in the present embodiment, when making the thickener of fluorophor particle 3, used the cataloid aqueous solution, but confirmed with an organic solvent also can obtain same effect.Use is with respect to 50 weight % fluorophor particles, mixing 45 weight % α-terpineols, 5 weight % ethyl celluloses and the thickener that obtains, silk screen printing is carried out on surface in dielectric layer 10, in atmosphere, in 400～600 ℃ of following heat treatments 10～60 minutes, make the thick porous emitter 23 of several microns～tens μ m thus.At this moment, if too improve heat treated temperature, fluorophor is easy to generate rotten, so the management of temperature treatment and heat-treating atmosphere is very important.In addition, in this organic thickener, contain inorfil 18 and also can obtain same effect.

In addition, in the present embodiment, use BaTiO ₃As dielectric, but confirm to use SrTiO ₃, CaTiO ₃, MgTiOZ ₃, PZT (PbZrTiO ₃), PbTiO ₃Deng dielectric, also can obtain same effect.In addition,, can use sintered body, also can use by resulting dielectric layer of film formation method such as sputter, CVD, evaporation, sol-gel processes for dielectric layer.

In the present embodiment, use sintered body as dielectric layer, but adopt the structure that forms by dielectric powder and adhesive, also can be luminous.Just, can use following dielectric layer: on the Al metal substrate, the coating thickener, after the drying, in air, under 400～600 ℃, heat-treat, obtain the dielectric layer that constitutes by dielectric particle and adhesive thus, wherein this thickener is at the BaTiO with respect to 40 weight % ₃Powder in the powder of glass powder of 15 weight %, mixing 40 weight % α-terpineols, 5 weight % ethyl celluloses form.

In addition, in the present embodiment, use be blue fluorophor particle, but know, use red and green fluorophor particle, also can obtain same effect.In addition, even blue, red, green stuff and other stuff also can obtain same effect.

Light-emitting component according to the present embodiment, because it is luminous that it produces by creeping discharge, therefore do not use the employed film of present formation luminescent coating formation method, do not need vacuum system and charge carrier dynode layer yet, so simple in structure, it is also easy to process.

In addition, in electrode 7, use ITO, but also can use the light-transmitting substrate of implementing copper wiring to replace ITO.Copper wiring can form fine mesh-like, and aperture opening ratio (the part of distribution is not with respect to the ratio of integral body) is 90%, compares with the light-transmitting substrate with ITO film, and the permeability of light is not inferior yet.In addition, copper is compared with ITO, and resistance is quite low, thus help to increase substantially luminous efficiency, so very suitable.In addition, as the metal that carries out fine mesh-like distribution, except copper, can also use gold, silver, platinum with or aluminium.

(embodiment 10)

Then, for embodiment 10, use Figure 23 that manufacture method and luminous effect are described.Omitted the explanation of the symbol identical with Figure 22.On another face of the dielectric 10 of formation first electrode 6 that uses in aforementioned Figure 22, the Ag of printing, sintered screen shape (about 5～10 orders) sticks with paste, and forms second electrode 7.Afterwards, on second electrode 7, be coated with the thickener of the fluorophor particle powder 3 and the cataloid aqueous solution as hereinbefore, the usefulness drier descended dry 10～30 minutes at 100～150 ℃, was about the porous emitter 2 of 100 μ m at the surperficial stacked thickness of dielectric layer 10.Thus, can obtain 1: the second electrode 7 of following light-emitting component and be formed between dielectric layer 10 and the porous emitter 2, first electrode, 6 clamping dielectric layer 10 and form light-emitting component 1 in the outside.Luminescent method is identical with the situation of Figure 22, applies alternating voltage at first electrode 6 and 7 at second electrode.By applying voltage, can in dielectric layer 10, emit primary electron (e by polarization reversal ^-) 24.At this moment, produce ultraviolet ray and visible light.Primary electron (e ^-) collide the fluorophor particle 3 and the insulating barrier 4 of porous luminescent layer 2, produce creeping discharge, and then produce a large amount of secondary electron (e ^-) 25.Thus, electronics that avalanche type ground produces and ultraviolet ray collide the luminescence center of fluorophor, and fluorophor particle 3 is excited and luminous.In addition, by applying AC field, the polarization reversal in dielectric layer is repeated to carry out.Meanwhile, produce electronics, electric charge is injected the porous luminescent layer, consequently produce creeping discharge.Apply electric field during in, creeping discharge continue to produce, the luminescence center that electronics that this moment, avalanche type ground produced and ultraviolet ray collide fluorophor, fluorophor particle 3 are excited and luminous.

Certainly, identical with the situation of Figure 22, waveform by the alternating electric field that will be applied is changed into square wave from sine wave or sawtooth waveforms, perhaps frequency is brought up to several thousand Hz from tens Hz, electronics in the time of can making polarization reversal is thus emitted with creeping discharge and is produced more tempestuously, thereby improves luminosity.Ejected electron and creeping discharge improve luminosity more tempestuously.In addition, blast wave rises along with the magnitude of voltage of alternating electric field and produces.Blast wave produces when the polarization reversal of dielectric layer 10, so when the generation frequency of blast wave is sinusoidal wave, produce in the position that is nestling up the peak, when being sawtooth waveforms or square wave, produce at summit, along with the raising of the peak voltage of blast wave, luminosity is enhanced.

If Once you begin creeping discharge then repeats above-mentioned chain discharge, constantly produce ultraviolet ray and visible rays, so must suppress the deterioration of the fluorophor particle 3 that these light cause, preferably reduce voltage in the luminous back of beginning.

Under the situation of Figure 23, if with respect to the thickness of dielectric layer 10, apply the voltage of about 0.7～1.2kV/mm, then by polarization reversal, emit primary electron (e as illustrated in fig. 17 ^-) 24 and creeping discharge produce secondary electron (e ^-) 25, then begin luminous.

Figure 22 and Figure 23's is luminous different, and the former produces violent creeping discharge in porous emitter 2 easily, the creeping discharge that the latter produces slightly a little less than, brightness also slightly a little less than.

In addition, in Figure 23, the reason that forms second electrode 7 of mesh-like is: the primary electron (e shown in Figure 17 that polarization reversal produces ^-) 24 be discharged into easily in the porous emitter 2, if form the uniform electrode 7 of thickness, primary electron (e then shown in Figure 17 ^-) 24 be difficult to be discharged in the porous emitter 2.

In addition, under the situation of Figure 23,, be not coated with MgO etc. in advance, play the effect of insulating barrier 4 as the cataloid of adhesive use as insulating barrier 4.

(embodiment 11)

Then, use Figure 24 that the situation that forms pair of

electrodes

6,7 on the border of dielectric layer 10 and porous emitter 2 is together described.Figure 24 is the cutaway view of the light-emitting component 1 of the present embodiment 11.6 is first electrodes, and 7 is second electrodes, the 3rd, and fluorophor particle, the 2nd, porous emitter, the 10th, dielectric layer.Porous emitter 2 is that the material of main component constitutes by fluorophor particle 3, with ceramic fibre 18.Desirable luminous in order to obtain, can with average grain diameter the BaMgAl of 2～3 μ m ₁₀O ₁₇: Eu ²⁺(indigo plant), Zn ₂SiO ₄: Mn ²⁺(green), YBO ₃: Eu ³⁺(red) these 3 kinds of inorganic compounds mix the back as fluorophor particle 3 separately or with them respectively.

Then, manufacture method and the luminous effect to Figure 24 describes.At first, coating and sintering Ag stick with paste on the surface of the dielectric sintered body 10 that uses in aforementioned Figure 22, form pair of electrodes 6,7.Then, mix 45 weight % fluorophor particles, 10 weight % inorfil powder, 40 weight % α-terpineols, 5 weight % ethyl celluloses and obtain thickener, be coated with this thickener, after the drying, in air, heat-treat under 400～600 ℃, stacked about 2 is the thick porous emitter 2 of 50 μ m on dielectric layer 10.Thus, obtain the borderline light-emitting component 1 that pair of

electrodes

6,7 all is formed on dielectric layer 10 and porous emitter 2.

Luminescent method is identical with the situation of Figure 22, applies AC field at

first electrode

6 and 7 at second electrode.By applying voltage, can in dielectric layer 10, emit primary electron (e by polarization reversal ^-) 24.At this moment, produce ultraviolet ray and visible light.Primary electron (e ^-) collide the fluorophor particle 3 and the ceramic fibre 18 of porous luminescent layer 2, produce creeping discharge, and then produce a large amount of secondary electron (e ^-) 25.Thus, electronics that avalanche type ground produces and ultraviolet ray collide the luminescence center of fluorophor, and fluorophor particle 3 is excited and luminous.In addition, by applying AC field, the polarization reversal in dielectric layer is repeated to carry out.Meanwhile, produce electronics, electric charge is injected the porous luminescent layer, consequently produce creeping discharge.Apply electric field during in, creeping discharge continue to produce, the luminescence center that electronics that this moment, avalanche type ground produced and ultraviolet ray collide fluorophor, fluorophor particle 3 are excited and luminous.

Certainly, waveform by the alternating electric field that will be applied is changed into square wave from sine wave or sawtooth waveforms, perhaps frequency is brought up to several thousand Hz from tens Hz, the electronics when making polarization reversal is thus emitted or creeping discharge produces more tempestuously, and luminosity is improved.In addition, blast wave rises along with the magnitude of voltage of alternating electric field and produces.Blast wave produces when the polarization reversal of dielectric layer 10, when the generation frequency of blast wave is sinusoidal wave, produces in the position that nestles up the peak, and when be sawtooth waveforms or square wave, in the summit generation, along with the raising of the peak voltage of blast wave, luminosity is enhanced.

In the present embodiment, use AC power, with respect to the thickness of dielectric layer 10, apply the electric field of about 0.7～1.2kV/mmm, thus, emit and produce creeping discharge by what polarization reversal produced electronics, then begin luminous.Figure 24 represents following situation, and pair of electrodes is formed on the border of dielectric layer and porous emitter together.

(embodiment 12)

With reference to Figure 25 to embodiment of the present invention 12, just following scheme is described: pair of

electrodes

6 and 7 be configured in dielectric layer above, the stacked porous emitter 2 by this pair of electrodes is at this other electrode 70 of configuration above porous emitter 2.

Figure 25 is the cutaway view of the light-emitting component 1 of the present embodiment.6 and 7 is pair of electrodes, and 6 is that first electrode, 7 is second electrodes, the 3rd, fluorophor particle, and the 4th, electrical insulator layer, the 2nd, the porous emitter, the 10th, dielectric layer and 70 is third electrodes.As shown in Figure 6, the porous emitter is that the material of principal component constitutes by fluorophor particle 3 or with fluorophor particle 3, in the present embodiment, use be the material that covers the surface of fluorophor particles 3 by insulator layer 4.

Desirable luminous in order to obtain, be the BaMgAl of 2～3 μ m with average grain diameter ₁₀O ₁₇: Eu ²⁺(indigo plant), Zn ₂SiO ₄: Mn ²⁺(green), YBO ₃: Eu ³⁺(red) these 3 kinds of inorganic compounds mix the back as fluorophor particle 3 uses separately or with them respectively.

In the present embodiment, use aforementioned blue emitting phophor particle 3, use insulating barrier 4 backs that form the insulating properties inorganic matter that is formed by MgO on its surface.In Mg precursor chelate solution, add fluorophor particle 11, through stirring for a long time, take out drying after, in atmosphere, under 400～600 ℃, heat-treat, form the even coating layer of MgO on the surface of fluorophor particle 3, just insulator layer 4.

At first, the manufacture method for the light-emitting component of the present embodiment shown in Figure 25 12 describes.50 weight % are coated with the cataloid aqueous solution of the fluorophor particle 3 and the 50 weight % of insulator layer 4, have formed thickener.Then, in the dielectric layer 10 of the diameter 15mm φ, the thickness 1mm that form first electrode 6 and second electrode 7 (with BaTiO ₃Sheet sintered body for principal component, sintering Ag electrode paste in the above, make thickness reach 30 μ m, form first electrode 6 and second electrode 7) on, by pair of electrodes, just first electrode 6 and second electrode 7, be coated with aforementioned thickener, with drier under 100～150 ℃ temperature, dry 10～30 minutes, the porous emitter 2 of the about 100 μ m of stacked thickness on dielectric layer 10.Then, the stacked glass (not shown) that has been coated with transparency electrode (indium-tin-oxide alloy (ITO), thickness 0.1 μ m) 70 on porous emitter 2.Obtained light-emitting component 1 as shown in figure 25 thus, wherein, pair of electrodes 6,7 all is formed on the border of dielectric layer 10 and porous emitter 2, has formed third electrode 70 on the porous luminous element.At this moment, as described later, can use the inorganic fiberboard that carries the fluorophor particle powder as the porous emitter.

Then, the luminous effect to this light-emitting component 1 describes.Between first electrode 6 and second electrode 7, apply AC field.By applying voltage, in dielectric layer 10, emit primary electron (e shown in Figure 17 by polarization reversal ^-) 24.At this moment, produce ultraviolet ray and visible rays.Afterwards, by applying alternating electric field, primary electron (e shown in Figure 17 at least one of other electrode (just electrode 70) and aforementioned pair of electrodes ^-) 24 collide the fluorophor particle 3 and the insulating barrier 4 of porous luminescent layer 2, produce creeping discharge, and then produce secondary electron (e shown in Figure 17 in a large number ^-) 25.Thus, electronics that avalanche type ground produces and ultraviolet ray collide the luminescence center of fluorophor, and fluorophor particle 3 is excited and luminous.In addition, by applying AC field, the polarization reversal in dielectric layer is repeated to carry out.Meanwhile, produce electronics, electric charge is injected the porous luminescent layer, consequently produce creeping discharge.Apply electric field during in, creeping discharge continue to produce, the luminescence center that electronics that this moment, avalanche type ground produced and ultraviolet ray collide fluorophor, fluorophor particle 3 are excited and luminous.

At this moment, waveform by the alternating electric field that will be applied is changed into square wave from sine wave or sawtooth waveforms, perhaps frequency is brought up to several thousand Hz from tens Hz, and the electronics in the time of can making polarization reversal is thus emitted with creeping discharge and produced more tempestuously, thereby improves luminosity.

In addition, along with the rising of the magnitude of voltage of AC field and produce blast wave.Blast wave produces when the polarization reversal of dielectric layer 10, so it produces in the position that nestles up the peak when to produce frequency be sinusoidal wave, and when be sawtooth waveforms or square wave, in the summit generation, so along with the rising of the voltage of blast wave, luminosity is enhanced.If Once you begin creeping discharge then repeats aforesaid chain discharge, constantly produce ultraviolet ray and visible rays, so must suppress the deterioration of the fluorophor particle 3 that light caused, preferably reduce voltage in the luminous back of beginning.

In the present embodiment, when polarization reversal,, apply the electric field of about 0.6～1.3kV/mm with respect to the thickness of dielectric layer 10.Afterwards, use the thickness of AC power, apply the alternating electric field of about 0.5～1.0kV/mm, produce emitting and creeping discharge of primary electron, then begin luminous with respect to light-emitting component 1.In addition, the electric field that applies when polarization reversal is big, then promotes the generation of electronics, if the electric field that applies is too small, then electronics emit insufficient.

In addition, the current value during discharge is 0.1mA or following.And following situation has obtained affirmation, if begin luminously, even then voltage is reduced to about 50～80% when applying, it is the luminous of high brightness, high-contrast, high identity, high reliability.Convert in blueness, can make the light-emitting device of luminous efficiency with 2～5lm/W.

In the present embodiment 12, though be in atmosphere, to drive, through confirming that implementing in oxygen, nitrogen and inert atmosphere or in the depressed gas also can be similarly luminous.

Light-emitting component 1 in the present embodiment 12 structurally is similar to the structure of inorganic EL (ELD), but constitutes different fully with mechanism.At first, for formation, as described above background technology put down in writing like that, the employed fluorophor of inorganic EL is with ZnS:Mn ²⁺, the luminous element that forms for the semiconductor of representative such as GaP:N, the fluorophor particle in the present embodiment 1 can be any in insulator or the semiconductor.Just, even when using the extremely low semi-conductive fluorophor particle of resistance value, as previously mentioned, cover equably because fluorophor particle 3 is insulated layer 4, this insulating barrier 4 is insulating properties inorganic matters, thus can short circuit, can continue luminous by creeping discharge.In addition, for luminescent coating, in inorganic EL, thickness is sub-micron～several microns, and in the present embodiment, it is several microns porous plastids to the hundreds of micron.In addition, in the present embodiment, emitter is porous.

Observe porous form with SEM (scanning electron microscope), can find from its result, fluorophor particle is the accumulation of an exposure level.

In addition, as fluorophor particle, what use now is the powder of the luminescence-utraviolet of use in the plasma display (PDP), but through confirming ZnS:Ag (indigo plant) and ZnS:Cu, Au that cathode ray tube (CRT) uses, Al (green), Y ₂O ₃: Eu (red) also can be luminous equally.For the fluorophor that CRT uses, because resistance value is low, so be difficult to produce creeping discharge, therefore preferred surface with insulator 4 coating fluorophor is easy to generate creeping discharge and luminous thus.

The present invention is to be basic point with the primary electron of emitting by the polarization reversal of dielectric, causes to avalanche type to produce secondary electron in a large number by creeping discharge, thus luminous light-emitting component.Therefore, if increase the system that makes the new function that tyco electronics arrives have beyond the polarization reversal in porous emitter 2, what it is contemplated that is, can be easily luminous.

In addition, in the present embodiment, when making the thickener of fluorophor particle 3, use the cataloid aqueous solution, but, with an organic solvent also can obtain same effect through confirming.Use is with respect to 50 weight % fluorophor particles, mixing 45 weight % α-terpineols, 5 weight % ethyl celluloses and the thickener that obtains, silk screen printing is carried out on surface in dielectric layer 10, in atmosphere, in 400～600 ℃ of following heat treatments 10～60 minutes, make the thick porous emitter 23 of several microns～tens μ m.At this moment, if too improve heat treatment temperature, fluorophor is apt to deteriorate, so the management of temperature treatment and heat-treating atmosphere is very important.In addition, in this organic thickener, contain inorfil 18 and also can obtain same effect.

In addition, in the present embodiment, use BaTiO ₃As dielectric, but, use SrTiO through confirming ₃, CaTiO ₃, MgTiO ₃, PZT (PbZrTiO ₃), PbTiO ₃Deng dielectric, also can obtain same effect.In addition, dielectric layer can be used sintered body, also can use the dielectric layer that obtains by film formation methods such as sputter, CVD, evaporation, sol-gel processes.

In the present embodiment, use sintered body as dielectric layer, but adopt the structure that forms by dielectric powder and adhesive, also can be luminous.Just, can use the following dielectric layer that obtains: on the Al metal substrate, the coating thickener, after the drying, in air, under 400～600 ℃, heat-treat, obtain the dielectric layer that is made of dielectric particle and adhesive thus, wherein this thickener is at the BaTiO with respect to 40 weight % ₃Powder has mixed the glass powder of 15 weight % and in the powder that obtains, mixing 40 weight % α-terpineols, 5 weight % ethyl celluloses form.

In addition, in the present embodiment, use be blue fluorophor particle, but known and used red and green fluorophor particle, also can obtain same effect.In addition, even blue, red, green stuff and other stuff also can obtain same effect.According to the light-emitting component of the present embodiment, owing to its be by creeping discharge produce luminous, do not use the employed film of present formation luminescent coating formation method, do not need vacuum system and charge carrier dynode layer yet, so simple in structure, it is also easy to process.

In addition, in electrode 70, use ITO, but also can use the light-transmitting substrate ITO that implemented copper wiring to replace ITO.Copper wiring can form fine mesh-like, and aperture opening ratio (the part of distribution is not with respect to the ratio of integral body) is 90%, compares with the light-transmitting substrate with ITO film, and the permeability of light is not inferior at all.In addition, copper is compared with ITO, and resistance is quite low, thus help to increase substantially luminous efficiency, so very suitable.In addition, the metal as implementing fine mesh-like distribution except copper, can also use gold, silver, platinum and aluminium.

(embodiment 13)

The manufacture method and the luminous effect of embodiment 13 then, are described with reference to Figure 26.In the present embodiment, below dielectric layer 10 and above on form first electrode 6 and second electrode 7 respectively and dielectric layer 10 be clipped in the middle.Omit the explanation of the symbol identical with Fig. 1.Use the dielectric 10 identical with embodiment 12, by printing and sintering Ag paste, with embodiment 12 equally respectively in the above central portion form second electrode 7 and formation first electrode 6 below whole.Afterwards, on the surface of second electrode 7, the thickener that contains fluorophor particle 3 that uses in the coating embodiment 12 uses drier under 100～150 ℃ temperature, and dry 10～30 minutes, the porous emitter 2 of the about 100 μ m of stacked thickness on dielectric layer 10.Afterwards, with embodiment 12 similarly, the glass plate (not shown) of stacked coating transparency electrode 70 on porous emitter 2 (indium-tin-oxide alloy (ITO), thickness 0.1 μ m).Consequently, pair of electrodes 6,7 are formed on the two sides of dielectric layer 10, pass through second electrode 7 above the dielectric 10 and stacked porous emitter 2 at this, again at this formation third electrode 70 above porous luminous element, thereby obtain having the light-emitting component 1 of this cross-section structure shown in Figure 26.

For driven light-emitting element 1, in the AC field that applies of first electrode 6 and second electrode 7.By applying voltage, in dielectric layer 10, emit primary electron (e-) 24 by polarization reversal.At this moment, produce ultraviolet ray and visible light.Afterwards, by applying alternating electric field between at least 1 electrode in third electrode 70 and aforementioned pair of electrodes, primary electron (e-) collides the fluorophor particle 3 and the insulating barrier 4 of porous luminescent layer 2, produces creeping discharge, and then produces secondary electron (e-) 25 in a large number.Thus, electronics that avalanche type ground produces and ultraviolet ray collide the luminescence center of fluorophor, and fluorophor particle 3 is excited, and is luminous thus.In addition, by applying AC field, the polarization reversal in dielectric layer is repeated to carry out.Meanwhile, produce electronics, electric charge is injected the porous luminescent layer, consequently produce creeping discharge.Apply electric field during in, creeping discharge continue to produce, the luminescence center that electronics that this moment, avalanche type ground produced and ultraviolet ray collide fluorophor, fluorophor particle 3 is excited, and is luminous thus.

In embodiment 13, with the situation of above-mentioned embodiment 12 similarly, waveform by the alternating electric field that will be applied is changed into square wave from sine wave or sawtooth waveforms, or frequency brought up to several thousand Hz from tens Hz, the electronics that is produced in the time of thus can polarization reversal is emitted with creeping discharge and is become more violent, thereby improves luminosity.In addition, blast wave rises along with the magnitude of voltage of alternating electric field and produces.Blast wave produces when the polarised direction of dielectric layer 10, when the generation frequency of blast wave is sinusoidal wave, produces in the position that nestles up the peak, and when be sawtooth waveforms or square wave, in the summit generation, along with the raising of the peak voltage of blast wave, luminosity is enhanced.

If Once you begin creeping discharge then can repeat to discharge chainly, constantly produce ultraviolet ray and visible rays, so must suppress the deterioration of the fluorophor particle 3 that light caused, preferably reduce voltage in the luminous back of beginning.

In the present embodiment 13, thickness with respect to porous luminescent layer 10, on first electrode 6 and second electrode 7, apply the voltage of about 0.84～1.4kV/mm, emit primary electron by polarization reversal thus, the relative thickness of light-emitting component 1 then, on any one electrode of first electrode 6 or second electrode 7 and electrode 70, apply the alternating electric field of about 0.7～1.2kV/mm, produce creeping discharge thus and produce secondary electron in large quantities, then begin luminous.

In addition, the current value during discharge is 0.1mA or following, and following situation has obtained affirmation, if begin luminous, even then voltage is reduced to about 50～80% when applying, also can continue luminously, it is the luminous of high brightness, high-contrast, high identity, high reliability.Convert in blueness, can make the light-emitting device of luminous efficiency with 2～5lm/W.

In the light-emitting component of the present embodiment 13, as shown in figure 26, second electrode 7 that forms on dielectric layer 10 is not to form on whole surface, but part formation.This is because can suppress primary electron that polarization reversal emits by electrode self shielding, imports porous emitter 2 effectively.In addition, can form the electrode of mesh-like, also can form the electrode that the electronics that is produced by polarization reversal can be released to the shape of porous emitter 2 reposefully, replace partly forming as described above electrode with this.

In addition, in Figure 26, when applying alternating voltage, under the situation about applying between first electrode 6 and second electrode 70 and under

second electrode

7 and 70 situations about applying of third electrode, brightness does not almost change.

(embodiment 14)

Then, 14 pairs of following schemes of embodiment are described with reference to Figure 27, configuration pair of

electrodes

6,7 below dielectric layer 10 just, stacked in the above porous emitter 2 is at this configuration third electrode 70 above porous emitter 2.

In the present embodiment, with previous embodiments 12 similarly, cover the fluorophor surfaces by insulating barrier 4.Just, form uniform MgO coating layer on the fluorophor particle surface.

With reference to Figure 27 the manufacture method of the light-emitting component of the present embodiment is described.With the cataloid aqueous solution of 50 weight %, form slurry by insulating barrier 4 even mulched ground fluorophor particles 11 and 50 weight %.Then, in the dielectric layer 10 of the diameter 15mm φ, the thickness 1mm that form first electrode 6 and second electrode 7 (with BaTiO ₃Sheet sintered body for principal component, sintering Ag electrode paste in its lower section, so that its thickness reaches 30 μ m, form first electrode 6 and second electrode 7) above, be coated with aforementioned slurry, with drier under 100～150 ℃ temperature, dry 10～30 minutes, the porous emitter 2 of the about 100 μ m of stacked thickness on dielectric layer 10 thus.Then, the stacked glass (not shown) that has been coated with transparency electrode (indium-tin-oxide alloy (ITO), thickness 0.1 μ m) 70 on porous emitter 2.Consequently, formation pair of

electrodes

6,7 below dielectric layer 10, stacked porous emitter 2 on dielectric layer 10, formation third electrode 70 on porous emitter 2 obtains light-emitting component shown in Figure 27 1 thus again.

Then, the luminous effect to this light-emitting component 1 describes.Between first electrode 6 and second electrode 7, apply AC field.By applying voltage, in dielectric layer 10, emit primary electron (e by polarization reversal ^-) 24.At this moment, produce ultraviolet ray and visible rays.Afterwards, between at least one electrode in third electrode 70 and the aforementioned pair of

electrodes

6,7, apply alternating electric field, primary electron (e ^-) collide the fluorophor particle 3 and the insulating barrier 4 of porous luminescent layer 2, produce creeping discharge, and then a large amount of secondary electron (e that produces ^-) 25.Thus, avalanche type ground produces the luminescence center that electronics and ultraviolet ray collide fluorophor, and fluorophor particle 3 is excited and luminous.In addition, by applying AC field, the polarization reversal in dielectric layer is repeated to carry out.Meanwhile, produce electronics, electric charge is injected the porous luminescent layer, consequently produce creeping discharge.Apply electric field during in, creeping discharge continue to produce, the luminescence center that electronics that this moment, avalanche type ground produced and ultraviolet ray collide fluorophor, fluorophor particle 3 are excited and luminous.

At this moment, waveform by the alternating electric field that will be applied is changed into square wave from sine wave or sawtooth waveforms, perhaps frequency is brought up to several thousand Hz from tens Hz, and the electronics that produces in the time of can making polarization reversal is thus emitted with creeping discharge and produced more tempestuously, thereby improves luminosity.

In addition, along with the rising of the magnitude of voltage of AC field and produce blast wave.Because blast wave produces when the polarization reversal of dielectric layer 10, it produces frequency when be sinusoidal wave, produces in the position that nestles up the peak, and when being sawtooth waveforms or square wave, in the summit generation, along with the rising of the voltage of blast wave, luminosity is enhanced.

If Once you begin creeping discharge then repeats aforesaid chain discharge, constantly produce ultraviolet ray and visible rays, so must suppress the deterioration of the fluorophor particle 3 that light caused, preferably reduce voltage in the luminous back of beginning.

In embodiment 14, when polarization reversal,, apply the electric field of about 0.4～0.8kV/mm with respect to the thickness of dielectric layer 10.Afterwards, use the thickness of AC power, apply the alternating electric field of about 0.5～1.0kV/mm, emit primary electron thus and produce creeping discharge, then begin luminous with respect to light-emitting component 1.In addition, the electric field that is applied in polarization reversal is big, then promotes the generation of electronics, if the electric field that applies is too small, then electronics emit insufficient.

(embodiment 15)

With reference to Figure 28 the present embodiment 15 is described.The present embodiment: first electrode 6 is configured in below the dielectric layer 10, in this stacked porous emitter 2 above dielectric layer 10, at this configuration second electrode 7 and third electrode 70 above porous emitter 2.

In the present embodiment 15, same with previous embodiments 12, insulating barrier 4 covers the fluorophor particle surface.Just, by forming the uniform coating of MgO at the blue emitting phophor particle surface with the same method of embodiment 12.

For the manufacture method of the light-emitting component of the present embodiment 15, at first make the slurry of the cataloid aqueous solution of the fluorophor particle 3 of the even covering insulating barrier 4 that has mixed 50 weight % and 50 weight %.Then, in the dielectric layer 10 of the diameter 15mm Φ, the thickness 1mm that form first electrode 6 (with BaTiO ₃Be the sheet sintered body of principal component, sintering Ag electrode paste in its lower section is so that thickness reaches 30 μ m, form first electrode 6) above, be coated with aforementioned slurry, with drier under 100～150 ℃, dry 10～30 minutes, the porous emitter 2 of the about 100 μ m of stacked thickness on dielectric layer 10.Then, sintering Ag electrode paste on porous emitter 2, make thickness reach 30 μ m, on the part on the surface of porous emitter 2, form second electrode 7, afterwards, laminated portions has been coated with the glass plate (not shown) of transparency electrode (indium-tin-oxide alloy (ITO), thickness 0.1 μ m) 70.Consequently, obtain having the light-emitting component 1 of the cross-section structure of Figure 28, wherein, first electrode 7 in the pair of electrodes be formed on dielectric layer 10 below, stacked porous emitter 2 on dielectric layer 10 forms second electrode 7 and third electrode 70 in the above.

Then, the luminous effect to this light-emitting component 1 describes.Between first electrode 6 and second electrode 7, apply AC field.By applying voltage, in dielectric layer 10, emit primary electron (e by polarization reversal ^-) 24.At this moment, produce ultraviolet ray and visible rays.Afterwards, by at other electrode, be to apply alternating electric field between at least one electrode in third electrode 70 and the aforementioned pair of

electrodes

6,7, primary electron (e ^-) collide the fluorophor particle 3 and the insulating barrier 4 of porous luminescent layer 2, produce creeping discharge, and then a large amount of secondary electron (e that produces ^-) 25.Thus, avalanche type ground produces the luminescence center that electronics and ultraviolet ray collide fluorophor, and fluorophor particle 3 is excited and luminous.In addition, by applying AC field, the polarization reversal in dielectric layer is repeated to carry out.Meanwhile, produce electronics, electric charge is injected the porous luminescent layer, consequently produce creeping discharge.Apply electric field during in, creeping discharge continue to produce, the luminescence center that electronics that this moment, avalanche type ground produced and ultraviolet ray collide fluorophor, fluorophor particle 3 are excited and luminous.

At this moment, change into square wave by the waveform of the alternating electric field that will be applied from sine wave or sawtooth waveforms, perhaps frequency is brought up to several thousand Hz from tens Hz, the electronics during polarization reversal is emitted with creeping discharge and is become more violent, thereby improves luminosity.

In addition, along with the rising of the magnitude of voltage of AC field and produce blast wave.Blast wave produces when the polarization reversal of dielectric layer 10, so it produces in the position that nestles up the peak when to produce frequency be sinusoidal wave, and when being sawtooth waveforms or square wave, in the summit generation, along with the rising of the voltage of blast wave, luminosity is enhanced.If Once you begin creeping discharge then repeats aforesaid chain discharge, constantly produce ultraviolet ray and visible rays, so must suppress the deterioration of the fluorophor particle 3 that light caused, preferably reduce voltage in the luminous back of beginning.

In embodiments, when polarization reversal,, apply the electric field of about 0.5～1.0kV/mm with respect to the thickness of dielectric layer 10.Afterwards, use the thickness of AC power, apply the alternating electric field of about 0.5～1.0kV/mm, emit primary electron and a large amount of secondary electron that produces thus, then begin luminous with respect to light-emitting component 1.In addition, the electric field that is applied in polarization reversal is big, then promotes the generation of electronics, if the electric field that applies is too small, then electronics emit insufficient.

In addition, the current value during discharge is 0.1mA or following.And following situation has obtained affirmation, if begin luminously, also continues luminously even then voltage is reduced to about 50～80% when applying, and it is the luminous of high brightness, high-contrast, high identity, high reliability.Convert in blueness, can make the light-emitting device of luminous efficiency with 2～5lm/W.

(embodiment 16)

With reference to Figure 29 and Figure 30, the electronics that contains of the present embodiment is emitted the light-emitting component of body, porous luminous element and paired electrons and described.The light-emitting component of the present embodiment is: the porous luminous element contains the inorganic phosphor particle, and the porous luminous element is configured to, and to emit body adjacent with electronics, so that the porous luminous element is emitted the electron irradiation that body produces from electronics, pair of electrodes disposes in the mode that at least a portion to aforementioned porous luminous element applies electric field.Particularly, following this light-emitting component is described: electronics is emitted body and is comprised cathode electrode, gate electrode and be clipped in the Spindt type emitter (emitter) between aforementioned 2 electrodes and form, by between cathode electrode and gate electrode, applying gate voltage, the electron irradiation porous luminous element that will emit from aforementioned Spindt type emitter and make aforementioned porous luminous element luminous.

Figure 29 is the cutaway view of the light-emitting component of the present embodiment, the 1st, integral thickness is about the light-emitting component of 2mm, the 2nd, thickness is about the porous emitter of 30 μ m, the 3rd, average grain diameter is the fluorophor particle of 2 μ m, the 4th, the thickness on fluorophor particle surface is the insulating barrier of 0.5 μ m, the 100th, the bottom surface is 1 μ m, the triangular pyramidal Spindt type emitter of height 1 μ m, the 6th, thickness is first electrode of 200nm, the 7th, thickness is second electrode of 200nm, the 111st, thickness is the anode electrode of 150nm, the 112nd, thickness is the cathode electrode of 150nm, the 113rd, thickness is the gate electrode of 200nm, the 116th, thickness is the insulating barrier of 1 μ m, the 117th, and thickness is the substrate of 1.1mm, the 119th, thickness is that the electronics of 1.1mm is emitted body.

At first, describe with reference to the manufacture method of accompanying drawing the light-emitting component of the present embodiment.Figure 30 A-F is the figure that is used to illustrate the manufacture method of light-emitting component shown in Figure 29, shown in Figure 30 A, at the surperficial evaporation Au of glass substrate 117, forms cathode electrode 112, for forming cathode electrode 112, also can evaporation Ag, Al or Ni to replace Au.In addition, substrate 117 also can be a pottery except using glass.

Then, shown in Figure 30 B,, stick with paste, make its drying, at 580 ℃ of following sintering by silk screen print method printed glass on cathode electrode 112 in order to form insulating barrier 116.In addition, the formation of insulating barrier 116 can also be used to be called the following formation of photolithographic process except silk-screened glasses is stuck with paste: cover SiO by sputter on cathode electrode ₂, use photo-induced corrosion resistant material and photomask, developing in UV exposure back, forms SiO by etching selectivity ground ₂Insulating barrier 116.

Then, shown in Figure 30 C, after sputter forms the Al film, use photoetching process, on insulating barrier 116, form the gate electrode 113 that forms by Al.In addition, also can use Ni to replace Al as the gate electrode metal.

Afterwards, shown in Figure 30 E, form Spindt type emitter at the recess of 113 of gate electrodes by 2 step vapour deposition methods.Specifically, about 20 ° angle that will the substrate shown in Figure 30 C tilts is installed on the evaporation coating device, while rotate the Al of aforesaid base plate evaporation as expendable material ₂O ₃Thus, Al ₂O ₃Shown in Figure 30 D,,, form the Al of thickness 200nm with covering grid electrode 113 by evaporation ₂O ₃Layer 118, evaporation not on cathode electrode 112.Then, as emitter, if vertical evaporation Mo then can enter the mode evaporation of the recess of 113 of gate electrodes, the Spindt type emitter of the Mo of formation triangle taper with self-align mode ground.Afterwards, lift from sacrifice layer and Mo on (lift off) emission gate electrode 113, and because the Mo emitter is oxidized when evaporation, so by at 550 ℃ sintering temperature, finally can obtain the glass substrate that MoSpindt type emitter 100 shown in Figure 30 E is formed on the recess between the gate electrode 113.In addition, except Mo, metals such as Nb, Zr, Ni, molybdenum steel also can be used as emitter material and use, and these emitters can be according to the method manufacturing of making above-mentioned Mo emitter.

Porous luminous element 2 in the present embodiment is that the particle of principal component constitutes by fluorophor particle 3 or with fluorophor particle 3, and in the present embodiment, fluorophor particle 3 surfaces are insulated layer 4 and cover.

Desirable luminous in order to obtain, can be the BaMgAl of 2～3 μ m with for example average grain diameter ₁₀O ₁₇: Eu ²⁺(indigo plant), Zn ₂SiO ₄: Mn ²⁺(green), YBO ₃: Eu ³⁺(red) these 3 kinds of inorganic compounds are independent respectively or mix the back as fluorophor particle 3.

In the present embodiment, use aforementioned blue emitting phophor particle 3, form the insulating barrier 4 of the insulating properties inorganic substances that form by MgO on its surface.Particularly, in Mg precursor chelate solution, add fluorophor particle 3, through stirring for a long time, take out drying after, in air, under 400～600 ℃, heat-treat, form the uniform coating layers of MgO on fluorophor particle 3 surfaces thus, just insulating barrier 4.With the cataloid aqueous solution of the fluorophor particle 3 and the 50 weight % of the above-mentioned insulating barrier 4 of the coating of 50 weight %, form thickener.

Then, (thickness is about 1mm, Al-to the ceramic wafer that will be formed by inorfil ₂O ₃-CaO-SiO ₂System, voidage are about 45% ceramic beaverboard) be impregnated in the aforementioned thickener, drying is 10～30 minutes under 100～150 ℃ temperature, carries the fluorophor particle powder on ceramic wafer.Afterwards, sintering Ag electrode paste on its two sides makes thickness reach 30 μ m, forms first electrode 6 and second electrode 7.Shown in Figure 30 F, the ceramic beaverboard that so obtains uses cataloid, waterglass or epoxy resin to attach to electronics and emits on the body 119.Then, by the stacked transparent anode electrode (indium-tin-oxide alloy (ITO) that has been coated with on porous luminous element 2, thickness 15 μ m) 111 glass (not shown), as shown in figure 29, can obtain following light-emitting component 1, wherein, emit formation porous luminous element 2 on the body 119, and dispose electrode at assigned position at electronics.In addition, for the electrode of light-emitting component 1, owing to the resistance value height of the transparency electrode ITO that uses as anode electrode 111, first electrode 6 and second electrode 7 insert as auxiliary electrode.Therefore, make the anode electrode 111 and second electrode 7 can a shared electrode, make the gate electrode 113 and first electrode 6 can a shared electrode.

In addition,, can on gate electrode, stick with paste by silk screen printing Ag, focusing electrode is set in order to prevent very big skew is arranged from the electron orbit that emitter sends.

Then, the luminous effect to the light-emitting component 1 of the present embodiment describes.

For driven light-emitting element 1, at first, between the anode electrode 111 of Figure 29 and cathode electrode 112 and the DC electric field that applies 800V, 80V between gate electrode 113 and the cathode electrode 112 respectively, emit primary electron in the direction of arrow of figure from Spindt type emitter 100.The electric field that is applied is big, then promotes the generation of electronics, but if too small, electronics is emitted deficiency.

When as above emitting primary electron, apply alternating electric field at

first electrode

6 and 7 at second electrode.Because movement of electric charges, the multiplication of the primary electron snowslide of emitting ground produces creeping discharge in the inside of porous luminous element 2.Creeping discharge continues to produce chainly, produces electric charge and move around fluorophor particle, and the electronics that is accelerated further collides luminescence center, excites porous luminous element 2 and luminous.At this moment, also produce ultraviolet ray and visible rays, by ultraviolet ray excited, luminous.

In addition, change into square wave by the waveform of the alternating electric field that will be applied from sine wave or sawtooth waveforms, or frequency is brought up to several thousand Hz from tens Hz, electronics is emitted with creeping discharge produce more tempestuously, thereby improve luminosity.

Particularly, use AC power,, apply the alternating electric field of about 0.5～1.0kV/mm, when electric charge moves, produce creeping discharge, then begin luminous with respect to the thickness of porous luminous element 1.In addition, this moment, the electric field that applies was big, then promoted the generation of electronics, if the electric field that applies is too small, then electronics emit insufficient.

In addition, the current value during discharge is 0.1mA or following.Following situation has obtained affirmation, if begin luminously, even then voltage is reduced to about 50～80% when applying, it is the luminous of high brightness, high-contrast, high identity, high reliability.Convert in blueness, can make luminous efficiency, brightness 200cd/m with 2.0lm/W ², 500: 1 characteristic of contrast light-emitting device.

The light-emitting component 1 of the present embodiment structurally is similar to the structure of inorganic EL (ELD), but constitutes different fully with mechanism.At first, for formation, background technology is put down in writing as described above, and the employed fluorophor of inorganic EL is with ZnS:Mn ²⁺, the luminous element that forms for the semiconductor of representative such as GaP:N, the fluorophor particle of the present embodiment is any in insulator or the semiconductor, but is preferably the insulating properties fluorophor particle.Just, even use the extremely low semiconductor fluorescence body particle of resistance value, as previously mentioned, cover equably because fluorophor particle is insulated layer 4, this insulating barrier is the insulating properties inorganic matter, thus can short circuit, continue luminous by creeping discharge.In addition, for luminescent coating, the thickness of inorganic EL is sub-micron～several microns, and the present embodiment is several microns porous plastids to the hundreds of micron.In addition, the present embodiment is characterised in that luminous element is a porous material.

With the form that SEM (scanning electron microscope) observes porous material, can find that from the result who observes fluorophor particle is the accumulation of an exposure level.

In addition, what fluorophor particle used now is the powder of the luminescence-utraviolet of use in the plasma display (PDP), but through confirming: employed ZnS:Ag (indigo plant) and ZnS:Cu, Au in the cathode ray tube (CRT), Al (green), Y ₂O ₃: Eu (red), confirming also can be luminous equally.

The present invention is that to emit the electronics that body 119 emits with electronics be basic point, causes creeping discharge and luminous light-emitting component to avalanche type.Can think that the novel electronic of electronics will be emitted body and porous luminous element 2 of the present invention is used in combination if will shine, can be easily luminous.

In addition, in the present embodiment, when making the thickener of fluorophor particle 3, use the cataloid aqueous solution, but confirm with an organic solvent also can obtain same effect.Wherein with respect to 50 weight % fluorophor particles, mixing 45 weight % α-terpineols, 5 weight % ethyl celluloses prepare slurry thus, flood above-mentioned ceramic beaverboard, the degreasing by heat treatment.

In addition, in the present embodiment, use be blue fluorophor particle, but known and used red and green fluorophor particle also can obtain same effect.In addition, even blue, red, green stuff and other stuff also can obtain same effect.In addition, in the present embodiment, what apply between first electrode 6 and second electrode 7 is alternating electric field, but also can use DC electric field.

Light-emitting component according to the present embodiment, because it is luminous by creeping discharge,, do not need vacuum system multiplication and charge carrier dynode layer so use the film formation method of using when forming luminescent coating at present hardly yet, therefore simple in structure, it is also easy to process.

(embodiment 17)

With reference to Figure 31 and Figure 32 A-G, the electronics that contains of the present embodiment is emitted the light-emitting component of body, porous luminous element and pair of electrodes and described.In the light-emitting component of the present embodiment, the porous luminous element contains the inorganic phosphor particle, and the porous luminous element is configured to, and to emit body adjacent with electronics, so that it can be emitted the electron irradiation that body produces by electronics, pair of electrodes disposes in the mode that at least a portion to aforementioned porous luminous element applies electric field.Particularly, following electronic illumination body is described: electronics is emitted body and is contained cathode electrode, gate electrode, is clipped in the carbon nano-tube between aforementioned 2 electrodes, by between cathode electrode and aforementioned gate electrode, applying gate voltage, the electron irradiation that to emit from carbon nano-tube makes aforementioned porous luminous element luminous to the porous luminous element.

Figure 31 is the cutaway view of the light-emitting component of the present embodiment, the 1st, light-emitting component, the 2nd, porous luminous element, the 3rd, fluorophor particle, the 4th, insulating barrier, 6 is first electrodes, and 7 is second electrodes, the 111st, and anode electrode, the 112nd, cathode electrode, the 113rd, gate electrode, the 116th, insulating barrier, the 117th, substrate and 127 is carbon nano-tube.

At first, describe with reference to the manufacture method of accompanying drawing the light-emitting component of the present embodiment.Figure 32 A-G is the figure that is used to illustrate the manufacture method of light-emitting component shown in Figure 31, and shown in Figure 32 A, at the surperficial evaporation Au of glass substrate 117, it is identical with previous embodiments 16 to form cathode electrode 112 methods.In addition, the substrate in the present embodiment also can use pottery except using glass.Then, shown in Figure 32 B,, all carry out equally with previous embodiments 16 in the method that forms the method for insulating barrier 116 on the cathode electrode 112 and shown in Figure 32 C, on insulating barrier 116, form the gate electrode 113 of Al formation.

Then, shown in Figure 32 D, by silk screen printing, with respect to 50 weight % carbon nano-tube, mixing 45 weight % α-terpineols, 5 weight % ethyl celluloses fall into resulting thickener the recess of 113 of gate electrodes.After the drying, at N ₂In the atmosphere, under 400 ℃, heat-treat, shown in Figure 32 E like that, carbon nano-tube is piled up at above-mentioned recess.Then, carry out the orientation process of carbon nano-tube, can form the vertically oriented carbon nano-tube shown in Figure 32 F according to adhesive film being bonded to the method for peeling off after the carbon nano tube surface, described vertical orientated be a kind of preferred condition of emitting body as electronics.

In addition,, use photomask exposure, development, also can make carbon tube nanometer tube figuring by coating photonasty carbon nano-tube thickener on the substrate that forms above-mentioned gate electrode.In addition, be used for the vertical orientated method of carbon nano-tube, also can use laser irradiation.Particularly, this method is: use the thickener that contains above-mentioned carbon nano-tube, behind the formation carbon nano-tube film, irradiating laser by blowing the organic resin that carbon nano-tube film contains, exposes carbon nano-tube on the film surface, makes the carbon nano-tube fluffing simultaneously.

Then, with previous embodiments 16 similarly, (thickness is about 1mm, Al at the ceramic wafer that is formed by inorfil ₂O ₃-CaO-SiO ₂System, voidage are about 45% ceramic beaverboard) to go up and carry the fluorophor particle powder, sintering Ag electrode paste on its two sides makes thickness reach 30 μ m, thereby forms first electrode 6 and second electrode 7.Shown in Figure 32 G, the ceramic beaverboard that so obtains uses cataloid, waterglass or epoxy resin to attach to electronics and emits on the body 119.Then, by the stacked transparent anode electrode (indium-tin-oxide alloy (ITO) that has been coated with on porous luminous element 2, thickness 15 μ m) 111 glass (not shown), can obtain thus emitting formation porous luminous element 2 on the body 119, and dispose the light-emitting component 1 of the present embodiment shown in Figure 31 of electrode at assigned position at electronics.

Then, the luminous effect to the light-emitting component 1 of the present embodiment describes.For driven light-emitting element 1, at first, by between the anode electrode 111 of Figure 31 and cathode electrode 112 and the DC electric field that applies 750V, 80V between gate electrode 113 and the cathode electrode 112 respectively, emit primary electron in the direction of arrow of figure from carbon nano-tube.

When as above emitting primary electron, apply alternating electric field at

first electrode

6 and 7 at second electrode.Because movement of electric charges, the multiplication of the primary electron snowslide of being emitted ground produces creeping discharge in the inside of porous luminous element 2.Creeping discharge continues to produce chainly, produces electric charge and move around fluorophor particle, and the electronics that is accelerated further collides luminescence center, and porous luminous element 2 is excited, and is luminous thus.At this moment, also produce ultraviolet ray and visible rays, by ultraviolet ray excited, luminous.

In addition, change into square wave by the waveform of the alternating electric field that will be applied from sine wave or sawtooth waveforms, and then frequency is brought up to several thousand Hz from tens Hz, electronics is emitted with creeping discharge produce more tempestuously, thereby improve luminosity.

Particularly, use AC power,,, when electric charge moves, produce creeping discharge, then begin luminous by applying the alternating electric field of about 0.5～1.0kV/mm with respect to the thickness of porous luminous element 1.In addition, this moment, the electric field that applies was big, then promoted the generation of electronics, if the electric field that applies is too small, then electronics emit insufficient.

In addition, the current value during discharge is 0.1mA or following.If begin luminously,, also can confirm to continue luminous even then voltage is reduced to about 50～80% when applying.

In addition, in the present embodiment, use be blue fluorophor particle, but known and used red and green fluorophor particle, also can obtain same effect.In addition, even blue, red, green stuff and other stuff also can obtain same effect.

(embodiment 18)

With reference to Figure 33 and Figure 34 A-C, the electronics that contains of the present embodiment is emitted the light-emitting component of body, porous luminous element and pair of electrodes and described.In the light-emitting component of the present embodiment, the porous luminous element contains the inorganic phosphor particle, and the porous luminous element is configured to, and to emit body adjacent with electronics, so that the porous luminous element can be emitted the electron irradiation that body produces from electronics, pair of electrodes disposes in the mode that at least a portion to aforementioned porous luminous element applies electric field.Particularly, following light-emitting component is described: wherein, it is that surface conductive type electronics is emitted element that electronics is emitted body, fine gap is set on metal oxide film, by to the electrode application voltage that on metal oxide film, is equipped with in advance, aforementioned gap is applied electric field, make the electron irradiation that produces from the gap to the porous luminous element.

Figure 33 is the cutaway view of the light-emitting component of embodiment of the present invention, the 1st, and light-emitting component, the 2nd, porous luminous element, the 3rd, fluorophor particle, the 4th, insulating barrier, 6 is first electrodes, 7 is second electrodes, the 117th, substrate, the 130th, the gap, the 131st, PdO ultrafine particle film and 132 is Pt electrodes.

At first, describe with reference to the manufacture method of accompanying drawing the light-emitting component of the present embodiment.Figure 34 A-C is the figure of manufacture method that is used to illustrate the light-emitting component of the present embodiment shown in Figure 33.Shown in Figure 34 A, graphical with the Pt thickener by silk screen printing on the surface of ceramic substrate 17, thus form Pt electrode 132 under the state of less clearance, on substrate being provided with.Then, shown in Figure 34 B, cover Pt electrode 132 with PdO printing ink,, thereby on Pt electrode 132, form PdO ultrafine particle film 131 so that bridge joint Pt electrode 132 carries out sintering by ink jet printing.Then, shown in Figure 34 C,, make PdO ultrafine particle film 31 produce be full of cracks, form the fine gap 30 about 10nm by carrying out electric treatment.So the electronics that constitutes the present embodiment is emitted body, and this method is not used photoetching process, and step is also fewer, is being very excellent aspect the maximization of economy and display.

Then, with previous embodiments 16 similarly, (thickness is about 1mm, Al at the ceramic wafer that is formed by inorfil ₂O ₃-CaO-SiO ₂System, voidage are about 45% ceramic beaverboard) go up and carry the fluorophor particle powder, the thick Ag electrode paste of sintering 30 μ m forms first electrode 6 and second electrode 7 respectively on its two sides.As shown in figure 33, the ceramic beaverboard that so obtains uses cataloid, waterglass or epoxy resin to attach to electronics and emits on the body 119.

Like this, can obtain emitting configuration porous luminous element 2 on the body 119, and dispose the light-emitting component 1 of the present embodiment shown in Figure 33 of electrode at assigned position at electronics.

Then, the luminous effect to this light-emitting component 1 describes.For driven light-emitting element 1, at first, if at 132 direct voltages that apply 12～16V of 2 Pt electrodes shown in Figure 33, slit by 10nm, by tunnel effect (tunnel effect), from the direction of arrow ejected electron of an electrode at figure, irradiation porous luminous element 2.

When as above emitting primary electron, between first electrode 6 and second electrode 7, apply alternating electric field.Because movement of electric charges, the multiplication of the primary electron snowslide of being emitted ground produces creeping discharge in the inside of porous luminous element 2.Creeping discharge continues to produce chainly, produces electric charge and move around fluorophor particle, and the electronics that is accelerated further collides luminescence center, and porous luminous element 2 is excited, and is luminous thus.At this moment, also produce ultraviolet ray and visible rays, by ultraviolet ray excited, luminous.

In addition, change into square wave by the waveform of the alternating electric field that will be applied from sine wave or sawtooth waveforms, and then frequency is brought up to several thousand Hz from tens Hz, electronics is emitted with creeping discharge produce more tempestuously, consequently, improve luminosity.

Particularly, use AC power,,, produce electric charge and move and creeping discharge, then begin luminous by applying the alternating electric field of about 0.5～1.0kV/mm with respect to the thickness of porous luminous element 2.In addition, this moment, the electric field that applies was big, then promoted the generation of electronics, if the electric field that applies is too small, then electronics emit insufficient.

In addition, as fluorophor particle, what use now is the powder of the luminescence-utraviolet of use in the plasma display (PDP), but through confirming ZnS:Ag (indigo plant) and ZnS:Cu, Au that cathode ray tube (CRT) uses, Al (green), Y ₂O ₃: Eu (red) also can be luminous equally.

In addition, the present invention is that to emit the electronics that body 119 emits with electronics be basic point, produces avalanche type ground and causes creeping discharge, thereby cause luminous light-emitting component, can think, if in porous luminous element 2, add the device of new function with irradiation electronics, then can be easily luminous.

In addition, in the present embodiment, use be blue fluorophor particle, but known and used red and green fluorophor particle also can obtain same effect.In addition, even blue, red, green stuff and other stuff also can obtain same effect.

In addition, in the present embodiment, can also use following similar electronics to emit body and replace using the electronics of aforementioned record to emit body, that is: clamp insulating barrier with 2 electrodes,, electronics is emitted by on two electrodes, applying electric field.Particularly, can use the Ir-Pt-Au alloy respectively, use Al, use Al as cathode electrode as upper electrode ₂O ₃As insulating barrier, clamp insulating barrier with 2 electrodes, when between electrode, applying electric field,,, also can make light-emitting component so use this electronics to emit the structure that body shines the porous luminous element by forming from the upper electrode ejected electron.

(embodiment 19)

With reference to Figure 35 and Figure 36 A-D, the electronics that contains of the present embodiment is emitted the light-emitting component of body, porous luminous element and pair of electrodes and described.In the light-emitting component of the present embodiment, the porous luminous element contains the inorganic phosphor particle, and the porous luminous element is configured to, and to emit body adjacent with electronics, so that the porous luminous element can be emitted the electron irradiation that body produces from electronics, pair of electrodes disposes in the mode that at least a portion to aforementioned porous luminous element applies electric field.Particularly, following light-emitting component is described, wherein electronics is emitted the silicon crystallite that body contains polysilicon membrane, silicon crystallite, contains the oxide-film of formation on silicon crystallite surface, will apply electron irradiation that voltage emits to the porous luminous element by electronics being emitted body, makes the porous luminous element luminous.

Figure 35 is the cutaway view of the light-emitting component of the present embodiment, the 1st, light-emitting component, the 2nd, porous luminous element, the 3rd, fluorophor particle, the 4th, insulating barrier, 6 is first electrodes, 7 is second electrodes, the 112nd, and cathode electrode, the 119th, electronics is emitted body, the 141st, metal film electrode, the 145th, polysilicon and 147 is silicon crystallites.Figure 36 A-D is the figure that is used to illustrate the manufacture method of light-emitting component shown in Figure 35, and shown in Figure 36 A, the surperficial evaporation Au at glass substrate 143 carries out Butut by photoetching process and forms cathode electrode 112.Then, shown in Figure 36 B, form the column polysilicon by plasma CVD method.

Then, shown in Figure 36 C,, form nano-silicon crystallite (nanosilicon) 147 with 145 porous of the polysilicon on the cathode electrode 112.Particularly, substrate is impregnated in the mixed solution of hydrofluoric acid and ethanol, it is anodal making substrate, and making as the Pt to electrode is negative pole, if apply voltage between them, then can form the silicon crystallite on cathode electrode 112.

Then, behind washing substrate 143, be impregnated in the sulfuric acid solution, it is anodal remaining and making substrate, is negative pole with Pt, if apply voltage, then with the surperficial simultaneous oxidation of polysilicon 145 and silicon crystallite.At last, shown in Figure 36 D, sputter and metal film electrodes 141 such as Au alloy, Ag alloy are set is carried out Butut by photoetch, obtains electronics and emits body 119.Like this, it is less that the electronics of the present embodiment is emitted the step of manufacturing number of body, can use the wet method manufacturing, also is excellent aspect economy therefore.

Then, with previous embodiments 11 similarly, (thickness is about 1mm, Al at the ceramic wafer that is formed by inorfil ₂O ₃-CaO-SiO ₂System, voidage are about 45% ceramic beaverboard) to go up and carry the fluorophor particle powder, sintering Ag electrode paste on its two sides makes thickness reach 30 μ m, thereby forms first electrode 6 and second electrode 7 respectively.As shown in figure 35, the ceramic beaverboard that so obtains uses cataloid, waterglass or epoxy resin to attach to electronics and emits on the body 119.

By above-mentioned operation, can obtain emitting on the body 119 configuration porous luminous element 2 and at the light-emitting component shown in Figure 33 1 of the present embodiment of assigned position configured electrodes at electronics.

Then, the luminous effect to this light-emitting component 1 describes.For driven light-emitting element 1, at first,, the silicon crystallite is penetrated from the electronics of cathode electrode by metal film electrode 141 and 112 DC electric field that apply 15～20V of cathode electrode at Figure 35, quickened also to be released in the electronic illumination body by the oxide-film on surface.

In as above ejected electron, apply alternating electric field at

first electrode

6 and 7 at second electrode.Because the multiplication of the primary electron snowslide that movement of electric charges is emitted ground produces creeping discharge in the inside of porous luminous element 2.Creeping discharge continues to produce chainly, produces electric charge and move around fluorophor particle, and the electronics that is accelerated further collides luminescence center, and porous luminous element 2 is excited, and is luminous thus.At this moment, also produce ultraviolet ray and visible rays, by ultraviolet ray excited, luminous.

In the present embodiment, use AC power, with respect to the thickness of porous luminous element 2,, produce electric charge and move and creeping discharge by applying the alternating electric field of about 0.5～1.0kV/mm, then begin luminous.In addition, this moment, the electric field that applies was big, then promoted the generation of electronics, if the electric field that applies is too small, then electronics emit insufficient.

(embodiment 20)

With reference to Figure 37 A-C the electronics of the light-emitting component part of formation the present embodiment being emitted body describes.The electronics of the present embodiment is emitted body and is to use whisker emitter (whiskeremitter) to replace aforementioned carbon nano-tube.

Figure 37 A-C is used to illustrate that the electronics of the present embodiment emits the figure of the manufacture method of body, the 112nd, and cathode electrode, the 113rd, gate electrode, the 116th, insulating barrier, the 117th, substrate, the 155th, metal-organic complex gas, the 157th, whisker emitter.Shown in Figure 37 A, at the surperficial evaporation Au of glass substrate 117, form cathode electrode 112, for the method that forms insulating barrier 116 thereon and further on insulating barrier 116, form gate electrode, similarly carry out with previous embodiments 19.Then, shown in Figure 37 B, form the whisker emitter by the CVD method.Particularly, Al:Zn metal-organic complex gas 155 is sprayed in a large number to cathode electrode.At this moment, if gas flow be a certain amount of more than, then the Al:ZnO film of thermal oxidation is grown up in vertical direction.In addition, if increase unstrpped gas, then the top of film becomes sharp, and sharpening is to a few nm levels.Therefore, the Al:ZnO whisker is with self-adjusting mode Butut and carry out vertical orientated.Note the input amount of unstrpped gas on one side, film-forming temperature, film formation time, on one side film forming, the electronics with Al:ZnO whisker emitter that can obtain thus shown in Figure 37 C is emitted body.

Then, according to the method identical with previous embodiments 11, (thickness is about 1mm, Al at the ceramic wafer that is formed by inorfil ₂O ₃-CaO-SiO ₂System, voidage are about 45% ceramic beaverboard) go up to carry the porous luminous element of fluorophor particle powder, be equipped with the electrode of regulation, and be laminated to above-mentioned electronics and emit on the body, can obtain light-emitting component (not shown) thus.

Then, the luminous effect to the light-emitting component 1 of the present embodiment describes.For driven light-emitting element 1, at first, between anode electrode and the cathode electrode and the DC electric field that applies 850V, 80V between gate electrode and the cathode electrode respectively, from whisker emitter ejected electron.

When as above emitting primary electron, between first electrode and second electrode, apply alternating electric field.Because movement of electric charges, the multiplication of the primary electron snowslide of being emitted ground produces creeping discharge in the inside of porous luminous element.Creeping discharge continues to produce chainly, produces electric charge and move around fluorophor particle, and the electronics that is accelerated further collides luminescence center, and the porous luminous element is excited, and is luminous thus.At this moment, also produce ultraviolet ray and visible rays, by ultraviolet ray excited, luminous.

In addition, change into square wave by the waveform of the alternating electric field that will apply from sine wave or sawtooth waveforms, and then frequency is brought up to several thousand Hz from tens Hz, emitting with creeping discharge of electronics produced more tempestuously, thereby improve luminosity.

Particularly, use AC power,,, produce electric charge and move and creeping discharge, then begin luminous by applying the alternating electric field of about 0.5～1.0kV/mm with respect to the thickness of porous luminous element.In addition, this moment, the electric field that applies was big, then promoted the generation of electronics, if the electric field that applies is too small, then electronics emit insufficient.In addition, the current value during discharge is 0.1mA or following.If begin luminously,, also can confirm to continue luminous even then voltage is reduced to about 50～80% when applying.

In addition, emit in the body at above-mentioned electronics, also can use carborundum or diamond thin etc. to replace the whisker emitter, when using these materials, also be by between above-mentioned cathode electrode and gate electrode, applying gate voltage, thus can be from these materials ejected electron, and shine porous luminous on.

(embodiment 21)

In the present embodiment, to emitting in the light-emitting component of body, porous luminous element and pair of electrodes containing electronics, particularly the pair of electrodes that disposes for the porous luminous element is applied electric field describes with reference to Figure 38～Figure 40.

Figure 38～Figure 40 is the cutaway view of porous luminous element that constitutes the part of light-emitting component, the 2nd, and the porous luminous element, the 3rd, fluorophor particle, the 4th, insulating barrier, 6 is that first electrode and 7 is second electrodes.Porous luminous element shown in Figure 38 and aforesaid embodiment 16 are similarly used blue fluorophor particle 3, form the insulating barrier 4 of the insulating properties inorganic matter that is formed by MgO on its surface.Particularly, in Mg precursor chelate solution, add fluorophor particle, through stirring for a long time, take out drying after, in air, under 400～600 ℃, heat-treat, form the uniform coating layer of MgO, just insulating barrier on the fluorophor particle surface thus.With the cataloid aqueous solution of the fluorophor particle 3 and the 50 weight % of the above-mentioned insulating barrier 4 of the coating of 50 weight %, form thickener.

Then, (thickness is about 1mm, Al-to the ceramic wafer that will be formed by inorfil ₂O ₃-CaO-SiO ₂System, voidage are about 45% ceramic beaverboard) be impregnated in the aforementioned thickener, drying is 10～30 minutes under 120～150 ℃ temperature, carries the fluorophor particle powder thus on ceramic wafer.Afterwards, as shown in figure 38, sintering Ag electrode paste makes thickness reach 30 μ m in the above, thereby forms first electrode 6 and second electrode 7.The ceramic beaverboard that so obtains uses cataloid, waterglass or epoxy resin to attach to electronics and emits on the body, thereby obtains light-emitting component of the present invention (not shown).

In addition, in previous embodiments 1, as shown in figure 38, with top and following relative formation first electrode 6 and second electrode 7 of porous emitter, but as shown in figure 39, also can be at upper and lower surface tiltedly facing to forming.

Then, as shown in figure 40, the situation of burying first electrode 6 and second electrode 7 in porous luminous element 2 simultaneously underground describes.After the fluorophor particle 3 of insulating barrier 4 covering surfaces that will form by MgO and the polyvinyl alcohol mixing granulation of 5 weight %, use molding die, under the pressure of about 50MPa, be configured as sheet.Then, in blanket of nitrogen, under 450～1200 ℃, carry out 2～5 hours heat treatment, make flake porous luminous element 2.If the apparent porosity of porous luminous element is less than 10%, then creeping discharge only produces in emitter surface, and luminous efficiency is low.Therefore, preferably having apparent porosity is 10% or the porous luminous element of above loose structure.In addition, can think that owing to the also excessive porosity that makes of the pore of luminous element becomes excessive, then luminous efficiency is low, and is difficult to produce creeping discharge, so desirable apparent porosity is more than or equal to 10% and less than 100%.

At the surperficial sintering Ag electrode paste of the flake porous luminous element 2 that as above obtains, make thickness reach about 30 μ m, thereby form first electrode 6 and second electrode 7.Then, 50 weight % are above-mentioned with the fluorophor particle 3 of insulating barrier 4 coatings and the cataloid aqueous solution of 50 weight %, form thickener, this thickener is applied to the surface of the above-mentioned porous luminous element that is formed with electrode, under 120～150 ℃ temperature dry 10～30 minutes.Like this, obtain burying underground the time shown in Figure 40 the porous luminous element of first electrode 6 and second electrode 7.

In addition, the method that forms the MgO insulating barrier on the fluorophor particle surface can followingly be carried out.At first, while at room temperature stir (OC with metal alkoxide Mg ₂H ₅) ₂Powder (1 mol ratio) and by CH ₃COOH (10 mol ratio), H ₂O (50 mol ratio) and C ₂H ₅The solution that OH (50 mol ratio) forms fully mixes, and makes roughly transparent gel and sol solution.Afterwards, while stir in above-mentioned sol-gel process solution and to add the BaMgAl that average grain diameter is 2～3m slightly at every turn ₁₀O ₁₇: Eu ²⁺(indigo plant), Zn ₂SiO ₄: Mn ²⁺(green), YBO ₃: Eu ³⁺Fluorophor particles (2 mol ratio) such as (red) mixes.Proceed this operation after 1 day, the centrifugation mixed solution is put into the drum of ceramic with powder, at 150 ℃ of dry diels down.

Then, with dried powder in air, 400～600 ℃ of down calcinings 2～5 hours, form the uniform insulating barrier that forms by MgO on the fluorophor particle surface.

Observe the thickness of the insulating barrier of fluorophor particle by permeability electron microscope (TEM), consequently, thickness is 0.1～2.0 μ m.As mentioned above, the covering of insulating barrier can be undertaken by following any method: fluorophor particle is impregnated in the metal alkoxide solution, perhaps uses metallo-chelate solution to carry out as mentioned above, perhaps by evaporation, sputter or CVD etc.

In addition, as the metal oxide that insulating barrier uses, known Y ₂O ₃, Li ₂O, MgO, CaO, BaO, SrO, Al ₂O ₃, SiO ₂, MgTiO ₃, CaTiO ₃, BaTiO ₃, SrTiO ₃, ZrO ₂, TiO ₂, B ₂O ₃Deng, wish to use at least a kind in them and form insulating barrier.

Particularly, when using vapor phase method to form insulating barrier, hope is carried out pre-treatment about 1～5 hour with fluorophor particle in blanket of nitrogen, under 200～500 ℃, common fluorophor particle contains a large amount of adsorbed water or the crystallization water, if use the insulating barrier of this state, brightness reduces, and luminescent spectrum skew equivalent life performance exerts an influence, so not preferred.

In addition, the thickness of insulating barrier is about 0.1～2.0 μ m, can consider that the average grain diameter of fluorophor particle and the generation state of creeping discharge determine thickness, it is believed that, when average grain diameter is submicron order, must form extremely thin coating layer.

If it is big that the thickness of insulating barrier becomes, then from the luminescent spectrum skew, brightness is low, and set out in the electronic shield aspect, not preferred.In addition.If the insulating barrier attenuation can infer that then the continuous generation of creeping discharge is had any problem slightly.Therefore, the average grain diameter of fluorophor particle and the thickness relationship of insulating barrier, relatively the former 1 is 1/10～1/500 scope to be preferably the latter.

In addition, the insulating barrier that fluorophor particle preferably forms with metal oxide respectively covers, and in fact, is that the state with 2,3 fluorophor particle cohesion covers.Like this, be coated with under the state of fluorophor particle cohesion to a certain extent, also can influence luminous situation hardly.

When using the porous luminous element so obtain to make light-emitting component of the present invention,, can obtain the light-emitting component of high brightness, high-contrast, high identity and high reliability through confirming.

In addition, when the fluorophor particle made from insulating barrier 4 covering surfaces 3, in order to promote the generation of creeping discharge, also can mix insulation fiber 18 and make porous luminous element 2.As employed insulating properties fiber 18 this moment, SiO ₂-Al ₂O ₃The electrical insulating property fiber of-CaO system etc. is suitable.The schematic diagram of the section of the porous luminous element that so obtains as shown in figure 41.In addition, also can use the so simple method of mixture of fluorophor particle 3 and insulating properties fiber 18 to replace the fluorophor particle 3 that is covered by insulating barrier 4 is heat-treated.Figure 42 is the schematic diagram of the section of the porous luminous element that obtains of the mixture by fluorophor particle 3 and insulating properties fiber 18.

(embodiment 22)

In the present embodiment, use accompanying drawing that the electronics that has made up the porous luminous element and contained Spindt type emitter of the present invention is emitted body and the structural outline of the field-emitter display (FED) made describes.

Figure 43 is the decomposition diagram of major part of the field-emitter display of the present embodiment, Figure 44 be the present embodiment use the cutaway view of light-emitting device array of Spindt type emitter.In Figure 43, the 2nd, the porous luminous element, the 119th, electronics is emitted body, and the 170th, field-emitter display, the 171st, gate line, the 172nd, cathode line, the 173rd, anode substrate, the 174th, cathode base.In Figure 44, the 1st, light-emitting component, the 2nd, porous luminous element, the 3rd, fluorophor particle, the 4th, insulating barrier, the 100th, Spindt type emitter, the 111st, anode electrode, the 112nd, cathode electrode, the 113rd, gate electrode, the 116th, insulator, the 117th, substrate, the 175th, separator.

As shown in figure 43, in the field-emitter display 170 of the present embodiment, the anode substrate 173 with porous luminous element 2 is layered in carry electronics and emits on the cathode base 174 of body 119 so that they relatively to.On cathode base 174, form mutually

orthogonal gate line

171 and 2 layers of distribution of anode line 172, form electronics at its orthogonal points and emit body 119.Like this, in the field-emitter display 170 of the present embodiment,, do not make the electron ray deflection, on the face, show the image of 2 dimensions as CRT.

As implement scheme 16 illustrated, emit body 119 for the electronics that uses Spindt type emitter 100, it constitutes by cone shape Spindt type emitter 100 with the gate electrode that the mode of surrounding this emitter is formed for applying the voltage that electronics is drawn.

From the emitter ejected electron time, in gate electrode, apply positive potential, in emitter, apply negative potential.Strong electric field is concentrated at the head portion of cone shape emitter, and electronics is emitted to the direction of porous luminous element 2 from this position.In the spindt type emitter of Mo, ejected electron under the voltage of 15～80V.In addition, in the display panel of reality, per 1 pixel can form corresponding to several emitters and form, and can make the action situation of emitter have very high redundancy.Thus, in this element, owing to make distinctive electric current change also statistics ground equalization, it is luminous therefore can to obtain stable pixel.In addition, matrix driving can be simple matrix driving, on gate line 171 apply positive scanning impulse on one side, provide negative data voltage to emitter line 172 on one side, 1 line is shown.By switched scan pulse successively, can show the image of 2 dimensions.In addition, in the pixel of rectangular configuration one by one, transistor is set, carries out ON-OFF, also can actively drive thus by making each pixel.

As an example, be expressed as follows the section of light-emitting component in Figure 44: form several spindt type emitters 100, stacked porous luminous element 2 is so that it corresponds respectively to emitter.At this moment, as shown in the figure,, wish on porous luminous element 2, to form separator 175 for well for fear of luminous interference.In addition, the field-emitter display that is to use spindt type emitter 100 that the field-emitter display of the present embodiment is described, but might not be limited to this,, just can make up and make field-emitter display with porous luminous element of the present invention so long as have the function of ejected electron.

(embodiment 23)

Figure 45 A-C is the cutaway view of the light-emitting component of the present embodiment, in these figure, the 1st, light-emitting component, the 2nd, porous emitter, the 3rd, fluorophor particle, the 4th, insulating barrier, the 5th, substrate, 6 is first electrodes, 7 is second electrodes, the 8th, light-transmitting substrate, the 9th, gas blanket, the 10th, dielectric layer and 11 is next doors.

The manufacture method of the light-emitting component of Figure 45 A is as follows.At first, be that sintering Ag sticks with paste on the face of sintered body of dielectric 10 of 0.3～1.0mm at thickness, make thickness reach 30 μ m, thereby form first electrode 6 of regulation shape.Then, on the substrate 5 of glass or pottery manufacturing, a bonding side that is formed with aforementioned first electrode.Dielectric can use the arbitrary dielectric described in the embodiment 1.

Then, with embodiment 1 similarly, prepare fluorophor particle 3 with insulating barrier 4 covering surfaces, insulating barrier 4 is formed by metal oxides such as MgO.Can use average grain diameter as fluorophor particle 3 is the BaMgAl of 2～3 μ m ₁₀O ₁₇: Eu ²⁺(indigo plant), Zn ₂SiO ₄: Mn ²⁺(green), YBO ₃: Eu ³⁺Inorganic compounds such as (red).

In the present embodiment, use the insulating barrier 4 that forms by MgO to cover the surface of fluorophor particle 3, after the polyvinyl alcohol mixing granulation with this

fluorophor particle

3 and 5 weight %, use molding die, under the pressure of about 50MPa, be configured as sheet.The formed body that so obtains is carried out heat treatment in 2～5 hours in blanket of nitrogen, under 450～1200 ℃, make flake porous luminous element 2.

If the apparent porosity of porous luminous element is less than 10%, then at tyco electronics during to the porous emitter, the surface light emitting of porous emitter, electronics can't be injected into the inside of luminescent layer, thereby in layer, almost do not have luminous, so luminous efficiency is low.Therefore, for the electronics that makes discharge generation injects the inside of porous emitter smoothly, it is 10% or above loose structure that the porous luminous element of wishing the present embodiment has apparent porosity.In addition, if the surface porosity factor of porous luminous element is very big, luminous efficiency can reduce on the contrary, is difficult to produce creeping discharge in the inside of porous emitter, thus apparent porosity suitable be more than or equal to 10% and less than 100% scope.Be preferably more than especially and equal 50% and less than 100% scope.

The flake porous luminous element 2 that as above obtains uses glass paste to attach on the dielectric layer 10, at this moment, glass paste is screen-printed on the end positions of porous emitter, and the porous emitter is adhered to herein.Afterwards, if heat-treat under 580 ℃, then the porous luminescent layer is accompanying under the state of gas blanket, and is bonding with dielectric layer 10.

Then, cover the porous emitter by light-transmitting substrates such as preformed glass substrate 8, so that second electrode 7 that is formed by ITO (indium-tin-oxide alloy) is positioned at towards the position of porous emitter, can obtain the light-emitting component 1 shown in Figure 45 A thus.At this moment, in order between the porous emitter 2 and second electrode 7, to produce the slight void that has gas, use glass paste, cataloid, waterglass or resin etc. to attach light-transmitting substrate 8 by heat treatment.Thus, shown in Figure 45 A, under the state that has gas blanket up and down of porous emitter, the glass paste of the both ends of porous emitter by playing next door 11 effect etc. are bonding.

Be present in the porous emitter gas blanket of both sides up and down as the feature of the present embodiment, it is suitable just being clipped in the gas blanket between porous emitter 2 and the dielectric layer 10 and inserting the scope that the thickness be clipped in the gas blanket between the porous emitter and second electrode is 20～250 μ m, most preferably is the scope of 30～220 μ m.If greater than above-mentioned scope, then must apply high voltage and produce discharge, from the reason of economy, not preferred.In addition, gas layer thickness also can be thinner than above-mentioned scope, so long as the mean free path of gas or more than, in fact just no problem, if gas blanket is extremely thin, then in the manufacturing process of light-emitting component, the control of the thickness difficulty slightly that becomes.

In addition, the thickness of the gas blanket up and down that has the porous emitter of the present embodiment might not be identical.But when in 2 positions up and down of emitter gas blanket being set, as shown in Figure 1, the thickness of each gas blanket has the situation of gas blanket to compare with 1 position in a side of emitter only, preferably sets slightly narrow.If it is big that the thickness of gas blanket becomes, then when discharge, must apply than higher voltage, from the economy aspect, not preferred.

As mentioned above, in the present embodiment, it is characterized in that: at the upper and lower settings gas blanket of porous emitter, if in first electrode of pair of electrodes and second electrode, apply alternating voltage, then discharge simultaneously in gas blanket up and down, consequently electronics effectively is injected in the emitter from the emitting up and down of porous emitter.Just, if the AC field that applies is slowly become big, on gas blanket, apply breakdown voltage or above voltage, then produce discharge, in gas blanket, electron multiplication, tyco electronics is to the porous luminous element, and the luminescence center of porous emitter is by electron excitation and luminous.Like this, gas blanket works as the electronics source of supply, and the electronics of generation injects up and down from the porous emitter, in whole emitter produce creeping discharge on one side, the ground of snowslide on one side is inner by layer.Apply electric field during in, creeping discharge continue to produce, the tyco electronics that this moment, avalanche type ground produced is to the luminescence center of fluorophor, fluorophor particle 3 is excited and luminous.Like this, electronics injects up and down effectively from the porous emitter, consequently, compare with the situation that embodiment 1 is put down in writing from emitter one side injection electronics, emitter in the present embodiment with loose structure, whole layer is not omitted and is evenly luminous effectively, and consequently, brightness further uprises.

As mentioned above, in the present embodiment, can make a kind of light-emitting component, this light-emitting component have gas blanket, the aforementioned gas blanket of contact the porous emitter, be used for applying at least one pair of electrode of electric field in aforementioned gas blanket and aforementioned porous emitter; Particularly, on a surface of porous emitter, pass through gas blanket, configuration dielectric layer and being used for applies first electrode of the pair of electrodes of electric field, on the another side of aforementioned dielectric layer that does not dispose aforementioned porous emitter and aforementioned first electrode, dispose second electrode in the aforementioned pair of electrodes by gas blanket.

In addition, in the present embodiment, shown in Figure 45 B,, can the gap that gas blanket 9,9 forms be set respectively in

porous emitter

2,2 and 6,7 at electrode not in the gap that

porous emitter

2,2 and 10 settings of dielectric layer are formed by gas blanket 9.

So, in gas blanket 9,9 and the

porous emitter

2,2 that is in contact with it, apply electric field, make

porous emitter

2,2 luminous from pair of

electrodes

6,7.

In the present embodiment, in the heat treatment step that forms the porous emitter, special attention should be that heat treatment temperature and atmosphere.In the present embodiment, owing to make in nitrogen, in 450～1200 ℃ temperature range, heat-treat, so the valence mumber of Doped Rare Earth class atom does not change in fluorophor.But when handling under than the higher temperature of this temperature range, the valence mumber that must be noted that the terres rares atom may change and may produce the solid solution that is formed by insulating barrier and fluorophor.As mentioned above, for heat treated atmosphere,, be preferably blanket of nitrogen in order not influence the valence mumber of Doped Rare Earth metalloid atom in the fluorophor particle.

In the present embodiment, the thickness of insulating barrier is about 0.1～2.0 μ m, can consider the average grain diameter of fluorophor particle and effectively produce creeping discharge to determine thickness again.In addition, if the average grain diameter of fluorophor is a submicron order, then can compares unfertile land and cover.If the insulating barrier thickening then can produce the luminescent spectrum skew, so brightness reduction etc. are not preferred.Otherwise, if the insulating barrier attenuation can infer that then creeping discharge is difficult to produce a little.Therefore, the average grain diameter of fluorophor particle and the thickness relationship of insulating barrier wish be with respect to the former 1, the latter is 1/10～1/500 scope.

Then, the luminous effect to this light-emitting component 1 describes.

As shown in the figure, for driven light-emitting element 1, apply AC field at first electrode 6 and 7 at second electrode.If the AC field that applies is slowly increased, apply breakdown voltage or above voltage in gas blanket, then produce discharge, electronics doubles in gas blanket, electronics can collide the porous emitter, and the luminescence center of emitter is by electron excitation and luminous.Like this, gas blanket works as the electronics source of supply, and the electronics that produces in the present embodiment injects up and down from the porous emitter, in the whole layer of the luminous element that is formed by porous material, produce on one side creeping discharge, on one side the inside of snowslide ground by emitter.Apply electric field during in, creeping discharge continue to produce, the tyco electronics that this moment, avalanche type ground produced is to the luminescence center of fluorophor, fluorophor particle 3 is excited and luminous.Like this, in the present embodiment, the electronics of injection up and down from the porous emitter, consequently, with the light-emitting component of being put down in writing as enforcement scheme 1, only the situation of injecting electronics from a side of emitter is compared, and the porous emitter do not spread all in the whole layer with omitting, evenly and effectively luminous, and brightness significantly increases.

In addition, in the present embodiment, using apparent porosity is more than or equal to 10% and less than 100% porous luminous element, with respect to the common emitter that does not possess loose structure, its surface light emitting, almost do not have luminously in layer inside, and the emitter that is formed by porous material in the present embodiment is not only at laminar surface and also luminous in the inside of emitter, so luminous efficiency is fabulous.Like this, when being the porousness layer, because its loose structure, the electronics of discharge generation is implanted layer inside reposefully, produces creeping discharge and luminous at whole layer, consequently, can obtain the luminous of high brightness.

In addition, for the porous luminous element that uses in the present embodiment, wish that its surface porosity factor is 10% or above loose structure.In addition, if the apparent porosity of luminous element is very big, then luminous efficiency reduces on the contrary and is difficult to produce creeping discharge etc. in porous emitter inside, based on these reasons, the apparent porosity of wishing is more than or equal to 10% and less than 100% scope, particularly, most preferably be more than or equal to 50% and less than 100%.

In addition, change into square wave by the waveform of the AC field that will be applied from sine wave or sawtooth waveforms, or frequency is brought up to several thousand Hz from tens Hz, the electronics that is produced by creeping discharge is emitted become more violent, thereby improve luminosity.In addition, along with the rising of the magnitude of voltage of AC field and produce blast wave.When the generation frequency of blast wave is sinusoidal wave, produce in the position that nestles up the peak, when be sawtooth waveforms or square wave, in the summit generation, along with the rising of the voltage of blast wave, luminosity is enhanced.If Once you begin creeping discharge also produces ultraviolet ray and visible rays,, preferably reduce voltage in the luminous back of beginning so must suppress the deterioration of the fluorophor particle 3 that these light cause.

In the light-emitting component of Figure 45 of the present embodiment A and Figure 45 B, thickness with respect to the porous emitter, apply electric field about 0.79～1.7,0.75～1.6kV/mm respectively, make fluorophor particle 3 luminous, afterwards, apply alternating electric field about 0.55～1.1,0.52～1.0kV/mm respectively, creeping discharge is proceeded, and it is luminous that fluorophor particle 3 is continued.If it is big that the electric field that applies becomes, then promote electron production, if the electric field that applies is less, then suppress their generation.When the gas that is present in gas blanket is air, apply the voltage of the voltage of about 0.3kV/mm at least as this breakdown voltage.

In addition, current value during discharge is 0.1mA or following, and following situation has obtained affirmation, if begin luminous, even then voltage is reduced to about 50～80% when applying, also can continue luminous, any light time in sending three kinds of colors, through confirming, it is the luminous of high brightness, high-contrast, high identity, high reliability.In the present embodiment, in air, drive, in the time of still can confirming in rare gas and gas, to implement for pressurization or decompression state, also can be luminous equally.

Light-emitting component according to the present embodiment, because it is to form the porous emitter by thick film, the film forming method in the time of therefore can not using existing light-emitting component to make does not need vacuum system and charge carrier dynode layer, so simple in structure, it is also easy to make and process.In addition, the electronics of discharge generation can collide luminescent layer from its two sides in the porous emitter, and because the structure of luminous element is a loose structure, the electronics that collides can produce creeping discharge on one side, Yi Bian inject emitter inside reposefully, so can obtain very bright luminous.With respect to common imporosity luminous element only at its surface light emitting, as mentioned above, the present embodiment be characterized as: the porous emitter owing to do not spread all over whole layer and luminous with omitting, and institute thinks high brightness.In addition, if the light-emitting phosphor that ultraviolet ray caused that is carried out in plasma display is compared, luminous efficiency is fabulous.In addition, can be provided in when being used for giant display the light-emitting component that power consumption is smaller.By the two ends in the porous emitter be provided as the discharge separating mechanism the next door, can easily avoid luminous interference thus.

Then, Figure 45 C is not except being provided with the dielectric layer 10 that is clipped between the porous emitter 2 and first electrode 6 in the light-emitting component of Figure 45 A-B, identical with the light-emitting component of Figure 45 A-B.

The manufacture method of the light-emitting component of Figure 45 C is as described below.At first, sintering Ag sticks with paste on the one side of the substrate 5 of glass or ceramic, makes thickness reach 30 μ m, thereby forms first electrode 6 of regulation shape.

Then, according to the mode same, prepare the fluorophor particle 3 of insulating barrier 4 covering surfaces that form with metal oxides such as MgO with embodiment 1.Can use average grain diameter as fluorophor particle 3 is the BaMgAl of 2～3 μ m ₁₀O ₁₇: Eu ²⁺(indigo plant), Zn ₂SiO ₄: Mn ²⁺(green), YBO ₃: Eu ³⁺Inorganic compounds such as (red).

In the present embodiment,, use the insulating barrier 4 that forms by MgO to cover the surface of fluorophor particles 3 according to the mode same with embodiment 3, after the polyvinyl alcohol mixing granulation with this

fluorophor particle

3 and 5 weight %, use molding die, under the pressure of about 50MPa, be configured as sheet.Then, in blanket of nitrogen, under 450～1200 ℃, carry out heat treatment in 2～5 hours, make flake porous luminous element 2.

The two ends of the flake porous luminous element 2 that the use glass paste will as above obtain are attached to the electrode side of substrate 5.Particularly, shown in Figure 45 C, silk-screened glasses is stuck with paste, and after the bonding porous emitter, heat-treats under 580 ℃, and then porous emitter 2 is provided with under the state of the minim gap that is formed by gas blanket bonded between itself and first electrode.That the thickness of the gas blanket of

porous emitter

2 and 6 existence of first electrode is suitable is 20～250 μ m, is preferably 30～220 μ m especially.If surpass above-mentioned scope, then must apply high voltage producing discharge, so from the reason of economy, not preferred.In addition, gas blanket can be thinner than above-mentioned scope, as long as be no more than the mean free path of gas.

Then, be positioned at towards the porous emitter, cover the porous emitter, then can obtain the light-emitting component 1 shown in Figure 45 C by light-transmitting substrates such as preformed glass substrate 8 in order to make second electrode 7 that forms by ITO (indium-tin-oxide alloy).At this moment, in order between the porous emitter 2 and second electrode 7, to produce the slight void that forms by gas blanket, use cataloid, waterglass or resin etc. to attach light-transmitting substrate 8 by heat treatment.The thickness in the porous emitter 2 and the gap of second electrode 7 might not be identical with the first gaps between electrodes thickness with above-mentioned porous emitter, can be set at roughly the same thickness.

As mentioned above, in the present embodiment, it is characterized in that: between first electrode that is provided with on the two sides of porous emitter and second electrode, minim gap is set respectively, so, between porous emitter and pair of electrodes, accompany the gas blanket that forms by rare gas, air, oxygen, nitrogen or their mist respectively.If on the pair of electrodes of this light-emitting component, apply AC field, when then on gas blanket, applying breakdown voltage or above voltage, just produce discharge, at this moment, electronics is doubled in gas blanket, tyco electronics is to the porous luminous element, and the luminescence center of emitter is by electron excitation and luminous.Like this, gas blanket plays the effect of electronics source of supply, and the tyco electronics of generation arrives emitter, the inside of implanted layer, in whole emitter produce creeping discharge on one side, the ground of snowslide on one side is by whole emitter.Apply electric field during in, creeping discharge continue to produce, the tyco electronics that avalanche type ground produces is to the luminescence center of fluorophor, fluorophor particle 3 is excited, and is luminous thus.Like this, in the present embodiment, electronics is from the both sides supply of porous emitter, steadily and not be injected into emitter inside with omitting, consequently, as enforcement scheme 1, inject the situation of electronics from a side of porous luminous element and compare, the whole layer of emitter is evenly luminous effectively, and luminosity also uprises.

In addition, in the present embodiment, the insulating barrier 4 that forms by MgO covers fluorophor particle 3 surfaces, and this is because MgO resistivity height (10 ⁹Ω cm or more than), can effectively produce creeping discharge.When the resistivity of insulating barrier is low, be difficult to produce creeping discharge, this moment may short circuit, so not preferred.Based on this reason, wish to use the high insulating properties metal oxide of resistivity to cover.Certainly, when the resistivity of the fluorophor particle that uses itself is high, even, also be easy to generate creeping discharge by the covering of insulating properties metal oxide.As insulating barrier, except using above-mentioned MgO, can also use to be selected from Y ₂O ₃, Li ₂O, CaO, BaO, SrO, Al ₂O ₃, SiO ₂, ZrO ₂In at least a kind.The standard free energy of formation Δ G of these oxides _f ⁰Very little (for example, at room temperature being-100kcal/mol or following) is stable material.Therefore in addition, the resistivity of these insulating barriers is higher, is the material that is difficult to reduce, even as the reduction that suppresses the fluorophor particle that electronics causes or the diaphragm of deterioration, also be excellent, consequently, causes the durability of fluorophor to uprise, and is suitable.

In addition, except above-mentioned sol-gel process method, can also form insulating barrier by using physisorphtions such as chemiadsorption or CVD method, sputtering method, vapour deposition method, laser method, shear stress.Insulating barrier wishes it is homogeneous, even, and can not peel off, and when forming insulating barrier, fluorophor particle is impregnated in the weak acid solutions such as acetic acid, oxalic acid, citric acid, and the impurity that washing adheres to the surface is important.

In addition, wish before forming insulating barrier, fluorophor particle in blanket of nitrogen, under 200～500 ℃, is carried out the pre-treatment about 1～5 hour.Usually, fluorophor particle contains a large amount of adsorbed water or the crystallization water, can produce bad influence to brightness reduction and luminescent spectrum skew equivalent life character if form insulating barrier in this state.During with weakly acidic solution washing fluorophor particle, after washing, fully wash, carry out above-mentioned pre-treatment again.

Then, with reference to Figure 45 C the luminous effect of this light-emitting component 1 is described.As shown in the figure, for driven light-emitting element 1, to applying AC field between first electrode 6 and second electrode 7.At this moment, light-emitting component inserts in the quartz ampoule, encloses the mist of Ne and Xe under the state of pressurization a little.If slowly increase the AC field that is applied, in gas blanket, apply breakdown voltage or higher voltage, then produce discharge, electronics doubles in gas blanket, and tyco electronics is to the porous luminous element, and the luminescence center of porous emitter is by electron excitation and luminous.Like this, gas blanket works as the electronics source of supply, and the electronics that is produced is from the implanted layer inside, both sides of porous emitter, in porous whole emitter produce creeping discharge, the passing through of on one side snowslide on one side.Apply electric field during in, creeping discharge continue to produce, the tyco electronics that this moment, avalanche type ground produced is to the luminescence center of fluorophor, fluorophor particle 3 is excited and luminous.In the present embodiment, inject electronics from the both sides, upper and lower of porous emitter, the result is, as implement to compare with the situation of injecting electronics from a side scheme 1 puts down in writing, the porous emitter does not spread all over whole layer with omitting, and evenly luminous effectively, brightness significantly uprises.

In addition, in the present embodiment, using apparent porosity is more than or equal to 10% and less than 100% porous luminous element, for the common luminescent coating that is not the porous luminous element, but at surface light emitting, luminous hardly in layer inside, with respect to this, in the porous emitter, be not limited to laminar surface, not luminous in layer yet, so luminous efficiency is high.This is because for the porous emitter time, and it is inner to enter layer by the discharge electronics, and consequently, whole layer produces creeping discharge, can obtain the luminous of high brightness.

In addition, change into square wave by the waveform of the AC field that will be applied from sine wave or sawtooth waveforms, or frequency is brought up to several thousand Hz from tens Hz, the electronics that is caused by creeping discharge is emitted more tempestuously produce, thereby improve luminosity.In addition, along with the rising of the magnitude of voltage of AC field and produce blast wave.When the generation frequency of blast wave is sinusoidal wave, produce in the position that nestles up the peak, when be sawtooth waveforms or square wave, in the summit generation, along with the rising of the voltage of blast wave, luminosity is enhanced.If Once you begin creeping discharge also produces ultraviolet ray and visible rays,, preferably reduce voltage in the luminous back of beginning so must suppress the deterioration of the fluorophor particle 3 that these light cause.

In the present embodiment, thickness with respect to the porous emitter, with embodiment 2 similarly, apply the electric field of about 0.54～1.2kV/mm, make fluorophor particle 3 luminous, apply the alternating electric field of about 0.39～0.78kV/mm afterwards, creeping discharge is proceeded, and it is luminous that fluorophor particle 3 is continued.With embodiment 2 similarly, compare with the situation of not enclosing rare gas, even magnitude of voltage is reduced to about 60～80%, also can be luminous.Reason is: by enclosing rare gas, form the atmosphere that more is easy to generate discharge, and can significantly improve brightness by pressurization.

In addition, current value during discharge is 0.1mA or following, and following situation has obtained affirmation, if begin luminous, even then voltage is reduced to about 50～80% when applying, also can continue luminous, when any of the fluorophor particle of three kinds of colors is luminous, compare with the light-emitting component of embodiment 2, it is the luminous of high brightness, high-contrast, high identity, high reliability.

By the way, the light-emitting component that does not possess dielectric layer of the present embodiment is in air when luminous, compare with the situation of under pressurized state, enclosing above-mentioned rare gas, when driving, must apply the comparison electric field of about 0.89～1.9kV/mm, make fluorophor particle 3 luminous, apply the alternating electric field of about 0.62～1.3kV/mm afterwards, creeping discharge is proceeded, and it is luminous that fluorophor particle 3 is continued.

According to the light-emitting component of the present embodiment, it is by formation porous emitter such as thick film, does not use the film forming method of present formation luminescent coating, and does not need vacuum tank and charge carrier dynode layer, so simple in structure, it is also easy to make and process.In addition, be characterised in that: to inject the electronics of porous emitter, creeping discharge produces luminous, can obtain the luminous of high brightness, be not as common fluorophor at surface light emitting, but it is luminous to spread all over whole layer of porous luminous element.In addition, if the light-emitting phosphor that ultraviolet ray caused that carries out in plasma display is compared, luminous efficiency is fabulous.In addition, can be provided in when being used for giant display the light-emitting component that power consumption is smaller.By the two ends in the porous emitter be provided as the discharge separating mechanism the next door, can easily avoid luminous interference.

Light-emitting component of the present invention is because to be that creeping discharge produces luminous, so have following feature: the film forming method that does not use present formation luminescent coating, and do not need vacuum tank and charge carrier dynode layer, easy to manufacture, it is useful that light-emitting component of the present invention thus can be used as in the luminous element of the unit picture element that constitutes big view display.In addition, as be used for throwing light on, the luminous element of light source etc. also is useful.

Claims

(according to the modification of the 19th of treaty)

Modification statement according to the 19th modification of PCT treaty

1. revised comment

Amended claim 1 has merged original claim 6, has correspondingly deleted original claim 6, and has added the prerequisite sentence that did not originally have in claim 23 and 25, and has revised the clerical mistake in the original text.Other claim does not make an amendment.

2. the contrast of the present invention and each citing document

Even document combination with all references, also not to the application's claim 1 " described light-emitting component contains at least 2 kinds of electrical insulator layer with differing dielectric constant; in the described electrical insulator layer one of be described emitter; any electrode in described 2 electrodes forms in the arbitrary contacted mode with described insulator layer, and described fluorophor is the porous luminous element " organically combine and to give teaching.By these difference, the 10th page the 2nd section of the explanation in Chinese book of original application of the present invention and the effect and the effect of the excellence that the specification final stage is put down in writing can have been given play to.

1. (revise back) a kind of emitter that contains fluorophor and light-emitting component of at least 2 electrodes of comprising, it is characterized in that: described light-emitting component contains at least 2 kinds of electrical insulator layer with differing dielectric constant, in the described electrical insulator layer one of be described emitter, any electrode in described 2 electrodes forms in the arbitrary contacted mode with described insulator layer, and described fluorophor is the porous luminous element.

2. the light-emitting component of putting down in writing according to claim 1, wherein said at least 2 electrodes are formed on the interface of the electrical insulator with differing dielectric constant.

3. the light-emitting component of putting down in writing according to claim 1, another in the wherein said insulator layer are that gas blanket, ferroelectric layer or dielectric constant are 100 or above dielectric layer.

4. the light-emitting component of putting down in writing according to claim 3, wherein said ferroelectric layer or dielectric layer are to be formed by the mixed layer and the ferroelectric material that are selected from the particle that contains sintered body layer, ferroelectric material or dielectric material and adhesive or at least 1 layer of containing in the packing of molecules film of dielectric material.

5. the light-emitting component of putting down in writing according to claim 3, wherein said ferroelectric further has backplate.

6. (deletion)

7. according to the light-emitting component that claim 1 is put down in writing, wherein said porous luminous element contains at least a kind of gas that is selected from air, nitrogen and the inert gas (to revise the back).

8. (revise back) according to the light-emitting component that claim 1 is put down in writing, and wherein said porous emitter is made of the continuous pores that is connected to described porous emitter surface, the gas and the fluorophor particle that are filled in the described pore.

9. (revise back) according to the light-emitting component that claim 1 is put down in writing, and wherein said porous luminous element is by the luminous element particle or be insulated the luminous element particle that layer covers and form.

10. according to the light-emitting component that claim 1 is put down in writing, the apparent porosity of wherein said porous luminous element is more than or equal to 10% and less than 100% (to revise the back).

11. (revise back) according to the light-emitting component that claim 1 is put down in writing, wherein said porous luminous element is to be formed by at least a kind of particle and the insulating properties fiber that are selected from the luminous element particle and be insulated in the luminous element particle that layer covers.

12. according to the light-emitting component that claim 1 is put down in writing, described light-emitting component is in pressurization, normal pressure or the reduced atmosphere, and it is all sealed.

13. according to the light-emitting component that claim 1 is put down in writing, wherein said light-emitting component applies direct current or AC field at least 2 electrodes and generation table particle constitutes creeping discharge, thereby makes emitter luminous.

14. according to the light-emitting component that claim 3 is put down in writing, wherein said gas blanket is the scope setting of 1 μ m～300 μ m with thickness.

15. according to the light-emitting component that claim 1 is put down in writing, wherein said emitter is a plurality of parts by the discharge separating mechanism by each pixel segmentation further.

16. according to the light-emitting component that claim 15 is put down in writing, wherein said discharge separating mechanism forms by the next door.

17. according to the light-emitting component that claim 15 is put down in writing, wherein said next door is formed by inorganic material.

18. according to the light-emitting component that claim 15 is put down in writing, wherein said discharge separating mechanism forms by the space.

19. according to the light-emitting component that claim 3 is put down in writing, wherein said gas blanket is separated at thickness direction by rib.

20. according to the light-emitting component that claim 1 is put down in writing, wherein said emitter rubescent at least respectively (R), green (G) and blue (B) light.

21. the light-emitting component of putting down in writing according to claim 1, wherein said at least 2 electrodes dispose in the mode of described 1 dielectric layer of clamping and emitter at least, by applying AC field, produce creeping discharge in described emitter, and make described emitter luminous.

22. according to the light-emitting component that claim 1 is put down in writing, wherein said at least 2 electrodes are addressing electrode or show electrode.

23. (revising the back) according to the light-emitting component that claim 1 is put down in writing, 1 in wherein said at least 2 electrodes is transparency electrode, it is configured in sightingpiston one side.

24. according to the light-emitting component that claim 3 is put down in writing, wherein said gas blanket be formed between the transparency electrode that is selected from described emitter and described sightingpiston one side and between described emitter and the backplate one of at least.

25. (revise back) according to the light-emitting component that claim 1 is put down in writing, another in the wherein said electrical insulator layer is ferroelectric layer, described emitter is the porous emitter, described porous emitter with the contacted state configuration of described ferroelectric layer.

26. according to the light-emitting component that claim 25 is put down in writing, at least one in the wherein said electrode is configured on the porous emitter, also is applied on the part of described porous emitter so that be applied to the alternating electric field of described at least 2 electrodes.

27. according to the light-emitting component that claim 25 is put down in writing, wherein said at least 2 electrodes form in the mode of clamping ferroelectric layer and porous emitter.

28. according to the light-emitting component that claim 25 is put down in writing, wherein said at least 2 electrodes all are formed on the ferroelectric layer.

29. according to the light-emitting component that claim 25 is put down in writing, wherein said at least 2 electrodes all are formed on the border of ferroelectric layer and porous emitter.

30. according to the light-emitting component that claim 25 is put down in writing, an electrode in wherein said at least 2 electrodes is formed on the border of ferroelectric layer and porous emitter, another electrode is formed on the ferroelectric layer.

31. the light-emitting component of putting down in writing according to claim 1, in the wherein said electric insulation layer one of be ferroelectric layer, described at least 2 electrodes comprise pair of electrodes and other electrode, described pair of electrodes disposes in the mode that at least a portion to described ferroelectric layer applies electric field, and described other electrode disposes in the mode that at least a portion of the described emitter that exists between at least one electrode of itself and described pair of electrodes applies electric field.

32. according to the light-emitting component that claim 1 is put down in writing, it is by the electric field that applies to described emitter more than or equal to regulation electric charge to be moved, thereby makes described emitter luminous.

33. the light-emitting component of putting down in writing according to claim 1, wherein electronics further is set and emits body towards described emitter, described emitter is configured to that to emit body adjacent with described electronics, so that described emitter is emitted the electron irradiation that body produces from described electronics.

34. the light-emitting component of putting down in writing according to claim 33, wherein said electronics is emitted body and is comprised Spindt type emitter between aforementioned 2 electrodes of cathode electrode, gate electrode and clamping, by between described cathode electrode and described gate electrode, applying gate voltage, the electron irradiation that to emit from described Spindt type emitter is to emitter, and makes this emitter luminous.

35. according to the light-emitting component that claim 34 is put down in writing, wherein said Spindt type emitter is a cone shape.

36. according to the light-emitting component that claim 34 is put down in writing, wherein said Spindt type emitter is made of at least a metal that is selected among molybdenum, niobium, zirconium, nickel and the molybdenum steel.

37. the light-emitting component of putting down in writing according to claim 33, wherein said electronics is emitted body and is contained cathode electrode, gate electrode and be clipped in carbon nano-tube between aforementioned 2 electrodes, by between described cathode electrode and described gate electrode, applying gate voltage, the electron irradiation that to emit from described carbon nano-tube is to emitter, and makes this emitter luminous.

38. the light-emitting component of putting down in writing according to claim 33, it is that surface conductive type electronics is emitted element that wherein said electronics is emitted body, the gap is set on metal oxide film, by applying electric field to the electrode that is provided on the described metal oxide film, make the electron irradiation that produces from described gap to the porous luminous element, thereby make emitter luminous.

39. the light-emitting component of putting down in writing according to claim 33, wherein said electronics is emitted body is had the silicon crystallite with oxide-film of the polysilicon clamping of oxide-film to form by apparatus, by on described silicon crystallite with oxide-film, applying electron irradiation that voltage produces, and make this emitter luminous to emitter.

40. the light-emitting component of putting down in writing according to claim 33, wherein said electronics is emitted body and is comprised whisker emitter between aforementioned 2 electrodes of cathode electrode, gate electrode and clamping, by between described cathode electrode and described gate electrode, applying gate voltage, the electron irradiation that to emit from described whisker emitter is to emitter, thereby makes emitter luminous.

41. the light-emitting component of putting down in writing according to claim 33, wherein said electronics is emitted body and is comprised carborundum or diamond thin between aforementioned 2 electrodes of cathode electrode, gate electrode and clamping, by between described cathode electrode and described gate electrode, applying gate voltage, to emit electron irradiation that body emits to emitter from described electronics, thereby make emitter luminous.

Claims

1. one kind comprises the emitter that contains fluorophor and the light-emitting component of at least 2 electrodes, it is characterized in that: described light-emitting component contains at least 2 kinds of electrical insulator layer with differing dielectric constant, in the described electrical insulator layer one of be described emitter, any electrode in described 2 electrodes forms in the arbitrary contacted mode with described insulator layer.

6. the light-emitting component of putting down in writing according to claim 1, wherein said fluorophor is the porous luminous element.

7. the light-emitting component of putting down in writing according to claim 6, wherein said porous luminous element contains at least a kind of gas that is selected from air, nitrogen and the inert gas.

8. the light-emitting component of putting down in writing according to claim 6, wherein said porous emitter is made of the continuous pores that is connected to described porous emitter surface, the gas and the fluorophor particle that are filled in the described pore.

9. the light-emitting component of putting down in writing according to claim 6, wherein said porous luminous element are by the luminous element particle or be insulated the luminous element particle that layer covers and form.

10. the light-emitting component of putting down in writing according to claim 6, the apparent porosity of wherein said porous luminous element is more than or equal to 10% and less than 100%.

11. according to the light-emitting component that claim 6 is put down in writing, wherein said porous luminous element is to be formed by at least a kind of particle and the insulating properties fiber that are selected from the luminous element particle and be insulated in the luminous element particle that layer covers.

23. according to the light-emitting component that claim 1 is put down in writing, wherein said at least 1 electrode is a transparency electrode, it is configured in sightingpiston one side.

25. according to the light-emitting component that claim 1 is put down in writing, wherein said emitter is the porous emitter, described porous emitter with the contacted state configuration of ferroelectric layer.