CN1618255A - Back sealing member for organic electroluminescence device, glass substrate for organic electroluminescence device, organic electroluminescence device, and methods for manufacturing sealing member and - Google Patents
Back sealing member for organic electroluminescence device, glass substrate for organic electroluminescence device, organic electroluminescence device, and methods for manufacturing sealing member and Download PDFInfo
- Publication number
- CN1618255A CN1618255A CNA028276140A CN02827614A CN1618255A CN 1618255 A CN1618255 A CN 1618255A CN A028276140 A CNA028276140 A CN A028276140A CN 02827614 A CN02827614 A CN 02827614A CN 1618255 A CN1618255 A CN 1618255A
- Authority
- CN
- China
- Prior art keywords
- glass substrate
- sealing backside
- organic
- electroluminescent device
- metal ion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011521 glass Substances 0.000 title claims abstract description 193
- 238000007789 sealing Methods 0.000 title claims abstract description 193
- 239000000758 substrate Substances 0.000 title claims abstract description 152
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000005401 electroluminescence Methods 0.000 title abstract description 8
- 239000005361 soda-lime glass Substances 0.000 claims abstract description 58
- 229910001413 alkali metal ion Inorganic materials 0.000 claims description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 52
- 229910001420 alkaline earth metal ion Inorganic materials 0.000 claims description 35
- 229910021645 metal ion Inorganic materials 0.000 claims description 26
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical compound [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 claims description 7
- 239000010410 layer Substances 0.000 abstract description 46
- 230000007261 regionalization Effects 0.000 abstract description 6
- 239000012790 adhesive layer Substances 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 239000005001 laminate film Substances 0.000 abstract 3
- 230000000052 comparative effect Effects 0.000 description 43
- 238000012545 processing Methods 0.000 description 31
- 238000011156 evaluation Methods 0.000 description 30
- 239000012528 membrane Substances 0.000 description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 20
- 239000000126 substance Substances 0.000 description 17
- 230000000007 visual effect Effects 0.000 description 15
- 229910052783 alkali metal Inorganic materials 0.000 description 13
- -1 alkali metal salt Chemical class 0.000 description 13
- 230000006866 deterioration Effects 0.000 description 12
- 238000002425 crystallisation Methods 0.000 description 11
- 230000008025 crystallization Effects 0.000 description 11
- 229910004298 SiO 2 Inorganic materials 0.000 description 10
- 239000000377 silicon dioxide Substances 0.000 description 10
- 239000011734 sodium Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical group C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical group [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007731 hot pressing Methods 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000011668 ascorbic acid Substances 0.000 description 2
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Inorganic materials [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 2
- CSSYLTMKCUORDA-UHFFFAOYSA-N barium(2+);oxygen(2-) Chemical compound [O-2].[Ba+2] CSSYLTMKCUORDA-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical compound [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 description 2
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 description 1
- 239000000783 alginic acid Substances 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/02—Details
- H05B33/04—Sealing arrangements, e.g. against humidity
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/10—Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/841—Self-supporting sealing arrangements
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Electroluminescent Light Sources (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
A back sealing member for an organic electroluminescence device, capable of prolonging the life of the device, a glass substrate for an organic electroluminescence device, an organic electroluminescence device, and methods for manufacturing the sealing member and glass substrate. An organic EL device (10) comprises a soda-lime glass substrate (11); an organic EL laminate film (12) formed on one side of the glass substrate (11), a pair of organic EL drive pattern formation parts (13) formed on the surface of the glass substrate (11), in the peripheral area of the organic EL laminate film (12), and a back sealing plate (20) made of soda-lime glass, adapted for an organic EL device, and so bonded to the glass substrate (11) through an adhesive layer (14) that the organic EL laminate film (12) is accommodated inside and the organic EL drive pattern formation parts (13) are interposed between the adhesive layer and the back sealing plate. The glass substrate (11) has a dealkalized part (15) subjected to dealkalization on its outermost layer, and the back sealing plate (20) has a dealkalized part (21) subjected to dealkalization on its outermost layer.
Description
Technical field
The present invention relates to organic electroluminescent device and use the manufacture method of glass substrate, organic electroluminescent device and sealing parts and glass substrate with sealing backside parts, organic electroluminescent device.
Background technology
Organic electroluminescent (Electroluminescence: electroluminescence, hereinafter referred to as " EL ") element is meant, to be inserted between anode and the negative electrode, take place electric charge by the organic multilayer film that hole transmission layer, luminescent layer and electron transfer layer form and inject again the display element of the luminous behavior of mating type, not only can realize the lower voltage of driving voltage, can also realize the wide areaization of illuminant colour according to the diversity of organic material.Above-mentioned organic EL is as the light source of OLED display.
Fig. 5 is the profile of the general configuration of existing organic EL.
In Fig. 5, existing organic EL 100 is formed by following parts: glass substrate (being also referred to as glass substrate) 101, the organic EL 102 that on the face of glass substrate 101, forms, the a pair of organic EL that forms on the face of the glass substrate 101 of organic EL 102 both sides drives pattern formation portion 103, and being situated between by adhesive linkage 104 drives on the face that pattern formation portion 103 is bonded in glass substrate 101 and make organic EL 102 be contained in its inboard organic electroluminescent device with sealing backside plate (sealing backside parts) 105 with organic EL.
The material of glass substrate 101 is soda-lime glass or alkali-free glass, material as sealing backside plate 105, because the thermal expansion difference of SUS metals such as (stainless steels) and glass substrate 101 is bigger, can make the cementability variation of sealing backside plate 105 and glass substrate 101, therefore use soda-lime glass or alkali-free glass.
In addition, material as glass substrate 101 and sealing backside plate 105, in order to reach the mass production of organic EL 100, more easy method is: after making the seal member that is formed by most sealing plates 105 that is that rectangular one arranges and the glass substrate adhering components that is formed by most glass substrates 101 that is the arrangement of matrix (matrix) shape one equally, therefore it is cut off respectively as each organic EL 100, glass preferably.
Yet, when soda-lime glass is used as the material of glass substrate 101 and sealing backside plate 105, there is As time goes on stripping from glass of alkali composition (instant parse or wash-out goes out), because the alkali composition of stripping makes organic EL 102 deteriorations from glass, thereby cause the problem of the lost of life of organic EL 102.
In addition, in the alkali-free glass stripping of alkali composition less, and since the higher and soda-lime glass of softening temperature relatively its mouldability is relatively poor.
Summary of the invention
The purpose of this invention is to provide a kind of organic electroluminescent device that can increase the life-span of organic EL and use the manufacture method of glass substrate, organic electroluminescent device and sealing parts and glass substrate with sealing backside parts, organic electroluminescent device.
To achieve these goals, according to the 1st aspect of the present invention, providing a kind of is encapsulated on the glass substrate with the organic electroluminescent device that covers the organic electroluminescent device that forms on high glass substrate sealing backside parts, it is characterized in that, aforementioned sealing backside parts are made by soda-lime glass, and having superficial layer and the la m that links to each other with this superficial layer, the alkali metal ion concentration of aforementioned superficial layer is lower than the alkali metal ion concentration of aforementioned la m.
In aspect the of the present invention the 1st, the thickness of aforementioned superficial layer is preferably 1nm to 1 μ m.
In aspect the of the present invention the 1st, the thickness of aforementioned superficial layer is preferably 10nm to 100nm.
In aspect the of the present invention the 1st, the mean value of the alkaline-earth metal ion concentration of aforementioned superficial layer preferably the alkaline-earth metal ion concentration of aforementioned la m mean value 80% or more than.
To achieve these goals, according to the 2nd aspect of the present invention, a kind of organic electroluminescent device glass substrate is provided, be formed with organic electroluminescent device on the upper surface of this glass substrate, and be packaged with the sealing backside parts to cover aforementioned organic electroluminescent device, it is characterized in that, aforementioned glass substrate is made by soda-lime glass, and having superficial layer and the la m that links to each other with this superficial layer, the alkali metal ion concentration of aforementioned superficial layer is lower than the alkali metal ion concentration of aforementioned la m.
In aspect the of the present invention the 2nd, the thickness of aforementioned superficial layer is preferably 1nm to 1 μ m.
In aspect the of the present invention the 2nd, the thickness of aforementioned superficial layer is preferably 10nm to 100nm.
In aspect the of the present invention the 2nd, the mean value of the alkaline-earth metal ion concentration of aforementioned superficial layer be preferably the la m that links to each other with aforementioned superficial layer the alkaline-earth metal ion concentration mean value 80% or more than.
To achieve these goals, according to the 3rd aspect of the present invention, a kind of sealing backside member manufacturing method is provided, wherein the glass preliminary working thin plate to soda-lime glass system carries out hot briquetting and makes organic electroluminescent device sealing backside parts, these sealing backside parts are used to be encapsulated on the glass substrate to cover the organic electroluminescent device that forms on the aforementioned glass substrate, it is characterized in that, the glass preliminary working thin plate of aforementioned hot briquetting is implemented dealkalize handle.
In aspect the of the present invention the 3rd, aforementioned dealkalize is handled preferably aforementioned glass preliminary working thin plate to be immersed in the hot water and is carried out.
In aspect the of the present invention the 3rd, the temperature of former hotter water is preferably 70 ℃ to 100 ℃.
In aspect the of the present invention the 3rd, preferably in former hotter water, add the metal ion of multivalence.
In aspect the of the present invention the 3rd, the metal ion of aforementioned multivalence is aluminium ion preferably.
In aspect the of the present invention the 3rd, the pH of former hotter water is preferably 3 to 10.
To achieve these goals, according to the 4th aspect of the present invention, a kind of manufacture method of glass substrate is provided, wherein the glass preliminary working thin plate to soda-lime glass system carries out hot briquetting and makes the organic electroluminescent device glass substrate, be formed with organic electroluminescent device on the upper surface of this glass substrate, and be packaged with the sealing backside parts to cover the aforementioned organic electroluminescent device that on this glass substrate, forms, it is characterized in that, the glass preliminary working thin plate of aforementioned hot briquetting is implemented dealkalize handle.
In aspect the of the present invention the 4th, aforementioned dealkalize is handled preferably aforementioned glass preliminary working thin plate to be immersed in the hot water and is carried out.
In aspect the of the present invention the 4th, the temperature of former hotter water is preferably 70 ℃ to 100 ℃.
In aspect the of the present invention the 4th, preferably in former hotter water, add the metal ion of multivalence.
In aspect the of the present invention the 4th, the metal ion of aforementioned multivalence is aluminium ion preferably.
In aspect the of the present invention the 4th, the pH of former hotter water is preferably 3 to 10.
Further, to achieve these goals,, provide a kind of organic electroluminescent device, it is characterized in that, have the organic electroluminescent device sealing backside parts of the 1st aspect of the present invention according to the 5th aspect of the present invention.
Further, to achieve these goals,, provide a kind of organic electroluminescent device, it is characterized in that having the organic electroluminescent device glass substrate of the 2nd aspect of the present invention according to the 6th aspect of the present invention.
Again further, to achieve these goals, according to the 7th aspect of the present invention, a kind of organic electroluminescent device is provided, it is characterized in that having the organic electroluminescent device glass substrate of the organic electroluminescent device of the 1st aspect of the present invention with sealing backside parts and the 2nd aspect of the present invention.
Description of drawings
Fig. 1 is the profile with organic EL of the sealing backside parts of the 1st execution mode of the present invention and glass substrate.
Fig. 2 is the profile with organic EL of the sealing backside parts of variation of the 1st execution mode of the present invention and glass substrate.
Fig. 3 is the profile with organic EL of the sealing backside parts of the 2nd execution mode of the present invention and glass substrate.
Fig. 4 is the profile with organic EL of the sealing backside parts of the 3rd execution mode of the present invention and glass substrate.
Fig. 5 is the profile of the summary structure of existing organic EL.
Embodiment
In order to realize above-mentioned purpose, the present inventor has carried out research with keen determination, found that, organic EL sealing backside parts and glass substrate for soda-lime glass system, if make the alkali metal ion concentration of sealing backside parts and glass substrate superficial layer separately be lower than the alkali metal ion concentration of the la m that links to each other with superficial layer respectively, preferably making the thickness of superficial layer is 1nm to 1 μ m, more preferably making the thickness of superficial layer is 10nm to 100nm, then can prevent because the deterioration of the organic EL that causes of alkali metal ion, and then the life-span of organic EL is increased.
The present inventor also finds, make in the manufacture method of organic EL with sealing backside parts and glass substrate carrying out hot briquetting by glass preliminary working thin plate soda-lime glass system, if the glass substrate of hot briquetting is implemented dealkalize to be handled, preferably glass substrate is implemented in the processing of flooding in the hot water, then can provide a kind of at an easy rate and prevent because the deterioration of the organic EL that causes of alkali metal ion, and then make sealing backside parts and the glass substrate that life-span of organic EL increases.
The present invention is based on above-mentioned result of study and finishes.
Below, with reference to accompanying drawing organic EL with embodiments of the present invention organic EL with sealing backside parts and glass substrate is described.
Fig. 1 has the profile of the organic EL of the 1st execution mode of the present invention with the organic EL of sealing backside parts and glass substrate.
In Fig. 1, organic EL with the 1st execution mode of the present invention is made of following parts with the organic EL 10 of sealing backside parts and glass substrate: the organic EL of soda-lime glass (sodalime) system is with glass substrate 11, the organic EL stack membrane 12 that on the face of glass substrate 11 1 sides, forms, the a pair of organic EL that forms on the face of glass substrate 11 at the peripheral edge portion of organic EL stack membrane 12 drives pattern formation portion 13, and the adhesive linkages such as epoxy resin 14 by ultraviolet hardening are situated between and drive on the face that pattern formation portion 13 is bonded in glass substrate 11 so that organic EL stack membrane 12 is contained in its inboard soda-lime glass system sealing backside plate (sealing backside parts) 20 with organic EL.Glass substrate 11 has the dealkalize handling part of handling through dealkalize 15 at its superficial layer, and sealing backside plate 20 has the dealkalize handling part of handling through dealkalize 21 at its superficial layer.Sealing backside plate 20 is formed with recess 23 on its part in addition, accommodates drier 24 such as barium monoxide 23 kinds of recesses.
Above-mentioned hot briquetting for example can use mould to be undertaken by hot pressing.Hot pressing process is as follows: between mould up and down, clamp the soda-lime glass of the thick 0.9mm of 80mm * 80mm, be fed into 950 ℃ heating furnace moulding, be cooled to 200 ℃ then after, send the moulding product.Because being formed with Ra on the surface of the shaping mould of hot pressing is the trickle concavo-convex of 1～10 μ m, therefore the surface transfer by hot-forming sealing plate overleaf 20 these are trickle concavo-convex, improved antiglare effect.
Above-mentioned dealkalize is handled and is undertaken by glass preliminary working thin plate is flooded in hot water.Thus, the alkali metal ion of the superficial layer of glass preliminary working thin plate can stripping to hot water.At this moment, the temperature of hot water is preferably 70 ℃ to 100 ℃ (boiling point).If 70 ℃ of the temperature deficiencies of hot water, the effect that dealkalize is handled reduces, and then seethes with excitement if surpass 100 ℃ (boiling point).In addition, the time-dependent that dealkalize is handled is preferably 1 minute to 3 hours in the performance of required glass substrate 11 and sealing backside plate 20.
In addition, in above-mentioned hot water, add the metal ion of multivalence, the adsorption of metal ions of this multivalence as the silica surface of the glass framework ingredient of this glass preliminary working thin plate to prevent the dissolving of silica, thereby can suppress the damage of the superficial layer of glass preliminary working thin plate, can also carry out dealkalize simultaneously efficiently and handle.As the metal ion of multivalence, preferably aluminum nitrate and aluminium ion (3 valency), particularly aluminum ions silica dissolving suppress effect and fail safe higher, and cheap.As the concentration of the metal ion of multivalence, preferably about 10ppm～0.1%.
As the pH of above-mentioned hot water, be preferably 3 to 10.If the pH of hot water is below 3, the alkaline-earth metal ion is easily from the stripping of glass preliminary working thin plate, and if the pH of hot water surpasses 10, and alkali metal ion stripping difficulty and promoted the dissolving of silica is damaged easily at the superficial layer of glass preliminary working thin plate.
The dealkalize portion 21 of the superficial layer of the dealkalize portion 15 of the superficial layer of glass substrate 11 and sealing backside plate 20 thickness and the concentration of alkali metal ion separately is as follows respectively.
When the alkali metal ion concentration of dealkalize portion 15 is lower than the alkali metal ion concentration of the la m 16 that links to each other with dealkalize portion 15, even the glass substrate 11 that forms by soda-lime glass, alkali metal ion also is difficult to the surperficial stripping from glass substrate 11, similarly, for sealing backside plate 20, even form by soda-lime glass, when the alkali metal ion concentration of dealkalize portion 21 is lower than the alkali metal ion concentration of the la m 22 that links to each other with dealkalize portion 21, alkali metal ion also is difficult to the surperficial stripping from sealing backside plate 20, can prevent because the deterioration of the organic EL stack membrane 12 that causes from the alkali metal ion of glass substrate 11 and 20 strippings of sealing backside plate, thereby can prevent from organic EL stack membrane 12, to form stain.In addition, because the material of glass substrate 11 and the material of sealing backside plate 20 all are soda-lime glasss, can improve the adhesiveness of sealing backside plate 20 and glass substrate 11.
Therefore, the thickness of dealkalize portion 15,21 is preferably at 1nm to 1 μ m, more preferably at 10nm to 100nm.The thickness of dealkalize portion 15,21 is if not enough 1nm then can not fully prevent the stripping of alkali metal ion, and if surpass 10 μ m, then the surface strength of glass substrate 11 and sealing backside plate 20 reduces.
In addition, if the mean value of alkaline-earth metal ion concentration that makes dealkalize portion 15 is with respect to the mean value of the alkaline-earth metal ion concentration of la m 16, and the mean value of the alkaline-earth metal ion concentration of dealkalize portion 21 with respect to the mean value of the alkaline-earth metal ion concentration of la m 22 respectively below 80%, dealkalize portion 15,21 separately surfaces become porous matter state, because this porous matter part is the savings alkali metal ion easily, and alkali metal ion moves easily, then can make dealkalize portion 15,21 alkaline-earth metal ion concentration significantly reduces, and alkali metal ion is easily from glass substrate 11 and 20 strippings of sealing backside plate.Therefore, preferably make dealkalize portion 15 the alkaline-earth metal ion concentration mean value with respect to the mean value of the alkaline-earth metal ion concentration of the mean value of the alkaline-earth metal ion concentration of la m 16 and dealkalize portion 21 with respect to the mean value of the alkaline-earth metal ion concentration of la m 22 respectively 80% or more than.
Therefore, in the 1st execution mode of the present invention, the pH that is used for the hot water of dealkalize processing is adjusted to 3 or above preferable.If the pH of hot water is lower than 3, be not alkali metal ion, the alkaline-earth metal ion is stripping easily also, when forming dealkalize portion 15,21, is difficult to keep the alkaline-earth metal ion concentration of dealkalize portion 15,21.
Fig. 2 has the organic EL of variation of the 1st execution mode of the present invention with the profile of the organic EL of sealing backside parts and glass substrate.
In Fig. 2, the organic EL of variation with the 1st execution mode of the present invention is basic identical with the organic EL 10 of the structure of the organic EL 30 of sealing backside parts and glass substrate and Fig. 1, with respect to organic EL 10, glass substrate 11 is replaced with glass substrate 31, sealing backside plate (sealing backside parts) 20 is replaced with sealing backside plate 32, same structure member is represented with prosign, has below omitted the part of repeat specification, only different parts is described.
Mass production for organic EL 30, the organic EL 30 of Fig. 2 is to form by following method: by adhesive linkage 14, make be seal member that the soda-lime glass system sealing plate 32 by majority that rectangular one arranges forms be equally rectangular one arrangement form the glass substrate adhering components that the soda-lime glass system glass substrate 31 of the majority that portion 13 forms forms by organic EL stack membrane 12 and organic EL driving pattern after, it is cut off forming respectively as each organic EL 30.
Glass substrate 31 its most surperficial have with Fig. 1 in the same dealkalize portion 33 of dealkalize portion 15 of glass substrate 11, on cut-out end face 34, there are not dealkalize portion 33 this point different with glass substrate 11, sealing backside plate 32 its most surperficial have with Fig. 1 in the same dealkalize portion 35 of dealkalize portion 21 of sealing backside plate 20, cut off do not have on dealkalize portion 35 this point on the end face 36 different with sealing backside plate 20.On organic EL 30, since do not have dealkalize portion 33 glass substrate 31 cut-out end face 34 and do not have the cut-out end face 36 of the sealing backside plate 32 of dealkalize portion 35 to be positioned at the outside of the sealed part of organic EL 12, even therefore do not implement dealkalizes and handle the deterioration that also can not produce organic EL 12 to cutting off end face 34,36.
Fig. 3 has the profile of the organic EL of the 2nd execution mode of the present invention with the organic EL of sealing backside parts and glass substrate.
In Fig. 3, organic EL with the 2nd execution mode of the present invention is basic identical with the organic EL 10 of the structure of the organic EL 40 of sealing backside parts and glass substrate and Fig. 1, and it forms SiO on glass substrate and sealing backside plate with respect to the 1st execution mode
2The film this point is different.Same structure member is represented with prosign, has below omitted the part of repeat specification, only different parts is described.
In the organic EL 40 of Fig. 3, glass substrate 41 is a soda-lime glass system, and it has with the same shape of the glass substrate 11 of the organic EL 10 of Fig. 1 and is same size, stacked in its surface SiO
2Film 43.Sealing backside plate 42 is a soda-lime glass system, and it has with the same shape of the sealing backside plate 20 of the organic EL 10 of Fig. 1 and is same size, stacked in its surface SiO
2Film 44.
SiO
2Film 43 does not need to be layered on the whole surface of glass substrate 41, for organic EL 40, can be layered on the surface that is limited by the inside 45 that has formed organic EL stack membrane 12, in addition, SiO
2Film 44 does not need to be layered on the whole surface of sealing backside plate 42, can be layered in by on inner 45 surfaces that limited.
According to the organic EL 40 of Fig. 3, owing to stacked SiO on the surface of glass substrate 41
2Film 43, stacked SiO on the surface of sealing plate 42 overleaf
2Film 44, inside 45 at organic EL 40, can prevent from glass substrate 41 and sealing backside plate 42 stripping alkali metal ions, prevent because the deterioration of organic El stack membrane 12 of causing of alkali metal ion, thereby can prevent from organic EL stack membrane 12, to form stain (dark spot).
The organic EL 40 of above-mentioned the 2nd execution mode is to form SiO simultaneously on sealing plate 42 and the glass substrate 41 overleaf
2Film, also can be only overleaf sealing plate 42 and glass substrate 41 one of go up and form SiO
2Film, preferred forms SiO on the sealing plate 42 overleaf
2Film.
Fig. 4 has the profile of the organic EL of the 3rd execution mode of the present invention with the organic EL of sealing backside parts and glass substrate.
In Fig. 4, organic EL with the 3rd execution mode of the present invention is basic identical with the organic EL 10 of the structure of the organic EL 50 of sealing backside parts and glass substrate and Fig. 1, with respect to the 1st execution mode its to glass substrate and sealing backside firm and hard execute aspect the chemical enhanced processing different.Same structure member is represented with prosign, has below omitted the part of repeat specification, only different parts is described.
Organic EL 50 according to Fig. 4, glass substrate 51 is a soda-lime glass system, it has with the same shape of the glass substrate 11 of the organic EL 10 of Fig. 1 and is same size, and glass substrate 51 is implemented chemical enhanced processing, and the Na that it is surperficial (sodium) atom is transformed to K (potassium) atom.Sealing backside plate 52 is a soda-lime glass system, and it has with the same shape of the sealing backside plate 20 of the organic EL 10 of Fig. 1 and is same size, and sealing backside plate 52 is implemented chemical enhanced processing, and the Na that it is surperficial (sodium) atom is transformed to K (potassium) atom.
Need on the whole surface of glass substrate 51, not implement chemical enhanced processing, for organic EL 50, can on the surface that is limited by the inside 53 that has formed organic EL stack membrane 12, implement chemical enhanced processing, in addition, do not need to implement chemical enhanced processing on the whole surface of sealing plate 52 overleaf, can on by inner 53 surfaces that limited, implement chemical enhanced processing.
In the organic EL 50 of Fig. 4, because glass substrate 51 is implemented chemical enhanced processing, the Na that it is surperficial (sodium) atom is transformed to K (potassium) atom, sealing backside plate 52 is implemented chemical enhanced processing, the Na that it is surperficial (sodium) atom is transformed to K (potassium) atom, so inside 53 at organic EL 50, can prevent from glass substrate 51 and sealing backside plate 52 stripping alkali metal ions, prevent because the deterioration of organic EL stack membrane 12 of causing of alkali metal ion, thereby can prevent from organic EL stack membrane 12, to form stain.
The organic EL 50 of above-mentioned the 4th execution mode is to implement chemical enhanced processing simultaneously on sealing plate 52 and the glass substrate 51 overleaf, also can be only overleaf sealing plate 52 and glass substrate 51 one of go up and implement chemical enhanced processing, preferably only implement chemical enhanced processing on the sealing plate 52 overleaf.
The sealing backside plate 52 of the sealing backside plate 42 of the sealing backside plate 32 of the sealing backside plate 20 of the organic EL 10 of Fig. 1, the organic EL 30 of Fig. 2, the organic EL 40 of Fig. 3 and the organic EL 50 of Fig. 4 is formed with recess 23 respectively on its part, in recess 23, accommodate drier 24 such as barium monoxide, but do not limit therewith, for example sealing backside plate 20,32,42,52 can be substantially planar, perhaps also can not have drier 24.When sealing plate 20,32,42,52 is substantially planar and does not have drier 24 overleaf,, can see image via sealing backside plate 20,32,42,52 for organic EL 10,30,40,50.
Specifically describe with the embodiment of the organic EL of sealing backside parts and glass substrate having organic EL of the present invention below.
The present inventor produces the organic EL 10 of 9 kinds of different sealing backside plates 20 with soda-lime glass system, and (embodiment 1～5, comparative example 1～4, table 1), its difference only is the thickness difference by the dealkalize portion 21 of the superficial layer of the sealing backside plate 20 of soda-lime glass system.In addition, (embodiment 6～10 also to produce the organic EL 10 of 9 kinds of different sealing backside plates 20 with soda-lime glass system, comparative example 5～8, table 2), its difference only is that the mean value of alkaline-earth metal ion concentration of inside portion 22 of sealing backside plate 20 is with respect to the ratio difference of the mean value of the alkaline-earth metal ion concentration of dealkalize portion 21.Further, also produce the organic EL 10 (comparative example 9) of following sealing backside plate 20 with soda-lime glass system, do not implement dealkalize on its sealing backside plate 20 and handle, the thickness that makes dealkalize portion 21 is 0mm, with them all as the organic EL 10 of Fig. 1.For these embodiment 1～10 and comparative example 1～9, carry out the crystallization amount of the separating out evaluation of alkali metal salt and the stain time of origin evaluation of organic EL stack membrane 12, and then, carry out sealing backside plate intensity evaluation for embodiment 1～5 and comparative example 1～4,9.
The crystallization amount of the separating out evaluation of alkali metal salt is to be undertaken by following method: the foregoing description 1～10 and comparative example 1～9 are being exposed placement after 120 hours respectively under the environment of 60 ℃ of atmospheric temperatures, humidity 80%, in dark field, observe (* 200 times) with light microscope, number to the crystal grain (the sintering grain of glass) of the alkali metal salt of separating out on the surface of each sealing backside plate 20 of the foregoing description 1～10 and comparative example 1～9 in the field range is counted, and gives the evaluation of its A～E level.From estimating A to estimating the increasing of the crystallization amount of separating out that E represents alkali metal salt with going forward one by one.Specifically, the state representation of the number of the crystal grain of alkali metal salt is: estimating A is 0～10/visual field, and estimating B is 10～50/visual field, and estimating C is 50～200/visual field, and estimating D is 200～500/visual field, estimates E and be 500 with last/visual field.
The stain time of origin evaluation of organic EL stack membrane 12 is to be undertaken by following method: the foregoing description 1～10 and comparative example 1～9 are being preserved under the hot environment of 100 ℃ of atmospheric temperatures under the driving condition respectively, measured until the time that produces stain.
Sealing backside plate intensity evaluation is to be undertaken by following method: adding heavy burden used when glass substrate 11 is bonding near the surperficial central part of each sealing backside plate 20 of the foregoing description 1～5 and comparative example 1～4,9, observe sealing backside plate 20 whether breakage takes place, give the evaluation of its A～C level.When sealing backside plate 20 is bonding by adhesive layer 14 and the glass substrate 11 that is formed with organic EL stack membrane 12 grades, the certain power of pressurization on the sealing plate 20 overleaf, at this moment sealing backside plate 20 is sometimes because deformation and breakage.Therefore, sealing backside plate 20 must be able to bear certain above pressurization deformation, therefore this operation of imagination and to carry out above-mentioned evaluation be necessary.From estimating A to estimating the go forward one by one reduction of face of land degree of expressing strong of C, specifically, estimate A and represent there is not damaged state, estimate B and represent to consider damaged uneven property, in sealing process, may produce damaged state, estimate C and be illustrated in the state that very high damaged probability is arranged in the sealing process.
What table 1 showed is for the stain time of origin evaluation of the crystallization amount of the separating out evaluation of the alkali metal salt of the foregoing description 1～5 and comparative example 1～4,9, organic EL stack membrane 12 and the result of sealing backside plate intensity evaluation.
Table 1
| ???No. | The thickness of dealkalize portion 21 [nm] | The crystallization amount of separating out of alkali metal salt | Stain time of origin [hr] | Sealing backside plate intensity | Overall merit |
| Comparative example 1 | ????0.1 | ????E | 400 or below | ????A | ????× |
| Comparative example 2 | ????0.5 | ????C | ?｀｀ | ????A | ????× |
| Embodiment 1 | ????1 | ????C | 500 or below | ????A | ????△ |
| Embodiment 2 | ????5 | ????B | 1000 or below | ????A | ????△ |
| Embodiment 3 | ????10 | ????A | 1000 or more than | ????A | ????○ |
| Embodiment 4 | ????100 | ????A | ?｀｀ | ????A | ????○ |
| Embodiment 5 | ????1000 | ????A | ?｀｀ | ????B | ????△ |
| Comparative example 3 | ????2100 | ????A | ?｀｀ | ????B | ????× |
| Comparative example 4 | ????12000 | ????A | ?｀｀ | ????C | ????× |
| Comparative example 9 | ????0 | ????E | 300 or below | ????A | ????× |
In table 1, as the thickness of dealkalize portion 21, the overall merit of embodiment 1～5 and comparative example 1～4,9 is, from a preferred side, successively to estimate zero, to estimate △, evaluation * expression.The evaluation of the crystallization amount of separating out, the stain time of origin evaluation of organic EL stack membrane 12 and the result of sealing backside plate intensity evaluation of the alkali metal salt by table 1, as can be seen, the thickness of dealkalize portion 21 is preferably 1nm to 1 μ m, more preferably 10nm to 100nm.
Table 2 shows is the result that the stain time of origin of the crystallization amount of the separating out evaluation of alkali metal salt of the foregoing description 6～10 and comparative example 5～9 and organic EL stack membrane 12 is estimated.
Table 2
| ????No. | The concentration ratio of alkali earth metal salt [%] | The crystallization amount of separating out of alkali metal salt | Stain time of origin [hr] | Overall merit |
| Comparative example 5 | ????50 | ????C | 500 or below | ????× |
| Comparative example 6 | ????60 | ????C | ??｀｀ | ????× |
| Comparative example 7 | ????70 | ????C | ??｀｀ | ????× |
| Comparative example 8 | ????75 | ????C | ??｀｀ | ????× |
| Embodiment 6 | ????80 | ????B | 1000 or below | ????○ |
| Embodiment 7 | ????85 | ????B | ??｀｀ | ????○ |
| Embodiment 8 | ????90 | ????B | 1000 or more than | ????○ |
| Embodiment 9 | ????90 | ????A | ??｀｀ | ????○ |
| | ????95 | ????B | ??｀｀ | ????○ |
| Comparative example 9 | ????0 | ????E | 300 or below | ????× |
In table 2, as the mean value of the alkaline-earth metal ion concentration of the dealkalize portion 21 of embodiment 6～10 and comparative example 5～9 sealing backside plate 20 separately ratio with respect to the mean value of the alkaline-earth metal ion concentration of la m 22, in the overall merit of embodiment 6～10 and comparative example 5～9, preferably represent, not preferably with evaluation * expression with estimating zero.The result that the crystallization amount of the separating out evaluation of the alkali metal salt by table 2 and the stain time of origin of organic EL stack membrane 12 are estimated, as can be seen the mean value of the alkaline-earth metal ion concentration of the dealkalize portion 21 of sealing backside plate 20 with respect to the ratio of the mean value of the alkaline-earth metal ion concentration of la m 22 preferably 80% or more than.
In addition, the present inventor also produces to have when sealing backside plate 20 being carried out the dealkalize processing, (embodiment 11～15 for the organic EL 10 of 8 kinds of soda-lime glass system sealing backside plates 20 of enforcement certain hour dealkalize processing (handling example 1) in the hot water of each different temperatures, comparative example 10～12, table 3), have when sealing backside plate 20 being carried out dealkalize and handle, under each different temperatures and whether added polyvalent metal ion, for example AlNO
3Hot water in implement the certain hour dealkalize and handle the organic EL 10 of 6 kinds of soda-lime glass system sealing backside plates 20 of (handling example 2) (embodiment 16～18, comparative example 13～15, table 4), and have when sealing backside plate 20 being carried out the dealkalize processing, implementing dealkalize with uniform temperature and certain hour in the hot water of each different pH handles the organic EL 10 of 10 kinds of soda-lime glass system sealing backside plates 20 of (handling example 3) (embodiment 19～23, comparative example 16～20, table 5).
The efficiency evaluation that dealkalize is handled is carried out according to as described below, difference (hot water temperature's difference according to the dealkalize processing, whether add the difference of pH of difference, the hot water of polyvalent metal ion), by relatively estimating to the thickness of the dealkalize portion 21 that forms.
The visual examination on sealing backside plate 20 surfaces is carried out according to as described below, observes (* 200 times) with light microscope in dark field, by being divided into A～C level by the degree that is commonly referred to as the cut that the etching of dive hindering causes, carries out relative evaluation.From estimating A to estimating the increasing of cut that E represents sealing backside plate 20 surfaces with going forward one by one.Specifically, estimate the situation that A is expressed as the 0/visual field, estimating B is the situation in 0～0.5/visual field, estimates C and be more than 0.5/situation in the visual field.
What table 3 showed is in handling example 1, and dealkalize is handled with the relation between the thickness of the dealkalize portion 21 of the temperature of hot water and sealing backside plate 20.
Table 3
| ????No. | The hot water temperature [℃] | The thickness of dealkalize portion 21 [nm] |
| Comparative example 10 | ????50 | ????0.1 |
| Comparative example 11 | ????60 | ????5 |
| Comparative example 12 | ????65 | ????20 |
| | ????70 | ????80 |
| | ????75 | ????120 |
| | ????80 | ????210 |
| | ????90 | ????300 |
| | ????100 | ????360 |
As can be seen from Table 3, dealkalize handle with the temperature of hot water preferably 70 ℃ or more than.
Whether what table 4 showed is in handling example 2, handle with the relation between the outward appearance on the thickness of the dealkalize portion 21 that adds polyvalent metal ion and sealing backside plate 20 in the hot water and sealing backside plate 20 surfaces to dealkalize.
Table 4
| ????No. | Whether add the metal ion of multivalence | The hot water temperature [℃] | The thickness of dealkalize portion 21 [nm] | The visual examination of sealing |
| Embodiment | ||||
| 16 | Have | ????70 | ????100 | ????B |
| Comparative example 13 | Do not have | ????70 | ????60 | ????C |
| Embodiment 17 | Have | ????80 | ????300 | ????A |
| Comparative example 14 | Do not have | ????80 | ????160 | ????B |
| Embodiment 18 | Have | ????90 | ????420 | ????A |
| Comparative example 15 | Do not have | ????90 | ????210 | ????C |
As can be seen from Table 4, preferably in handling with hot water, dealkalize adds polyvalent metal ion.
What table 5 showed is in handling example 3, and dealkalize is handled with the mean value of the alkaline-earth metal ion concentration of the thickness of the dealkalize portion 21 of the pH of hot water and sealing backside plate 20, dealkalize portion 21 with respect to the relation between the visual examination on the ratio of the mean value of inner 22 alkaline-earth metal ion concentration and sealing backside plate 20 surfaces.
Table 5
| No. | ????pH | The thickness of dealkalize portion 21 [nm] | Alkaline-earth metal ion concentration [%] | The visual examination of sealing backside plate | Overall merit |
| Comparative example 16 | ????1 | ????120 | ????40 | ????B | ????△ |
| Comparative example 17 | ????2 | ????115 | ????45 | ????B | ????△ |
| Comparative example 18 | ????2.5 | ????130 | ????50 | ????B | ????△ |
| Embodiment 19 | ????3 | ????140 | ????70 | ????A | ????○ |
| Embodiment 20 | ????4 | ????110 | ????80 | ????B | ????○ |
| Embodiment 21 | ????6 | ????150 | ????85 | ????A | ????○ |
| Embodiment 22 | ????8 | ????130 | ????80 | ????B | ????○ |
| Embodiment 23 | ????10 | ????105 | ????81 | ????B | ????○ |
| Comparative example 19 | ????10.5 | ????80 | ????78 | ????C | ????△ |
| Comparative example 20 | ????11 | ????55 | ????75 | ????C | ????× |
In table 5, handle the pH that uses hot water as dealkalize, the overall merit of embodiment 19～23 and comparative example 16～20 is from a preferred side, successively with estimating zero, estimating △, evaluation * expression.As can be seen from Table 5, the dealkalize processing is preferably 3 to 10 with the pH of hot water.
As mentioned above, the crystallization amount of the separating out evaluation of alkali metal salt, the stain time of origin of organic EL stack membrane 12 is estimated, sealing backside plate intensity evaluation, the efficiency evaluation that dealkalize is handled and the visual examination on sealing backside plate 20 surfaces are that the different embodiment 1～23 of the thickness of the dealkalize portion 21 of sealing backside plate 20 and the organic EL 10 of comparative example 1～20 are carried out, with the sealing backside plate 20 of embodiment 1～23 and comparative example 1～20 similarly, the different organic EL 10 of thickness to the dealkalize portion 21 of glass substrate 11, carry out the crystallization amount of the separating out evaluation of above-mentioned alkali metal salt, the stain time of origin of organic EL stack membrane 12 is estimated, sealing backside plate intensity evaluation, the efficiency evaluation that dealkalize is handled and the visual examination on sealing backside plate 20 surfaces obtain the result same with embodiment 1～23 and comparative example 1～20.
Thereby can see, the thickness of the dealkalize portion 15 of glass substrate 11 is preferably 1nm to 1 μ m, 10nm to 100nm more preferably, the mean value of the alkaline-earth metal ion concentration of dealkalize portion 15 with respect to the ratio of the mean value of the alkaline-earth metal ion concentration of la m 16 be preferably 80% or more than.In addition, can also recognize, in the dealkalize of glass substrate 11 is handled, dealkalize handle with the temperature of hot water preferably 70 ℃ or more than, preferably in dealkalize is handled with hot water, add polyvalent metal ion, the dealkalize processing is preferably 3 to 10 with the pH of hot water.
In addition, as shown in table 6, the present inventor has also made following organic E1 element respectively: have soda-lime glass system and surperficial stacked SiO
2Glass substrate 41 and soda-lime glass system and surperficial stacked SiO
2The organic EL 40 (embodiment 24) of Fig. 3 of sealing backside plate 42, and have soda-lime glass system and implemented chemical enhanced processing, the Na on surface is transformed to the glass substrate 51 of K and has had soda-lime glass system and implemented chemical enhanced processing, the Na on surface be transformed to the organic EL 50 (embodiment 25) of Fig. 4 of the sealing backside plate 52 of K.
According to above-mentioned same method,, embodiment 24,25 is being preserved under the hot environment of 100 ℃ of atmospheric temperatures under the driving condition then, measuring, carrying out the evaluation of stain time of origin until the time that produces stain for the above embodiments 24,25.The result that the stain time of origin is estimated is as shown in table 6.
Table 6
| ????No. | Glass substrate | The sealing backside plate | Stain time of origin [hr] |
| | Soda-lime glass+SiO 2Film | Soda-lime glass+SiO 2Film | 1000 or more than |
| Embodiment 25 | Soda-lime glass+chemical enhanced processing | Soda-lime glass+chemical enhanced processing | 1000 or more than |
As can be seen from Table 6, for organic EL 40,50, glass substrate 41,51 and sealing backside plate 42,52 are when they are soda-lime glass system and surperficial stacked SiO
2Situation under, and be to have made and implemented chemical enhanced processing, the Na on surface is transformed under the situation of K by soda-lime glass, even under hot environment, also can prevent alkali metal ion stripping from glass substrate 41,51 and sealing backside plate 42,52, prolong the stain time of origin.
Content according to above detailed description, sealing backside parts among the present invention are soda-lime glass system, the alkali metal ion concentration of its superficial layer is lower than the alkali metal ion concentration of the la m that links to each other with superficial layer, therefore can suppress alkali metal ion from the stripping of sealing backside parts surface, prevent because the deterioration of the organic EL that causes of alkali metal ion, and then can increase the life-span of organic EL.
According to sealing backside parts of the present invention, the thickness of its superficial layer is 1nm to 1 μ m, therefore can suppress alkali metal ion from the stripping of sealing backside parts surface.
According to sealing backside parts of the present invention, the thickness of the superficial layer of sealing backside parts is preferably 10nm to 100nm, therefore can further suppress alkali metal ion from the stripping of sealing backside parts surface.
According to sealing backside parts of the present invention, the mean value of the alkaline-earth metal ion concentration of the superficial layer of sealing backside parts be the la m that links to each other with superficial layer the alkaline-earth metal ion concentration mean value 80% or more than, therefore can suppress alkali metal ion from the stripping of sealing backside parts surface.
Glass substrate of the present invention is a soda-lime glass system, the alkali metal ion concentration of its superficial layer is lower than the alkali metal ion concentration of the la m that links to each other with superficial layer, therefore can suppress alkali metal ion from the glass baseplate surface stripping, prevent because the deterioration of the organic EL that causes of alkali metal ion, and then can increase the life-span of organic EL.
According to glass substrate of the present invention, the thickness of its superficial layer is 1nm to 1 μ m, therefore can suppress alkali metal ion from the glass baseplate surface stripping.
According to glass substrate of the present invention, the thickness of its superficial layer is preferably 10nm to 100nm, therefore can further suppress alkali metal ion from the glass baseplate surface stripping.
According to glass substrate of the present invention, the mean value of the alkaline-earth metal ion concentration of its superficial layer be the la m that links to each other with superficial layer the alkaline-earth metal ion concentration mean value 80% or more than, therefore can suppress alkali metal ion from the glass baseplate surface stripping.
According to sealing backside member manufacturing method of the present invention, the soda-lime glass system preliminary working thin plate of hot briquetting is implemented dealkalize handle, the sealing backside parts in the life-span that can increase organic EL can be provided at an easy rate.
According to sealing backside member manufacturing method of the present invention, dealkalize is handled and soda-lime glass system glass preliminary working thin plate to be immersed in the hot water and to be carried out, thereby can carry out the dealkalize processing of soda-lime glass system glass preliminary working thin plate efficiently.
According to sealing backside member manufacturing method of the present invention, the temperature of hot water is preferably 70 ℃ to 100 ℃, thereby can carry out the dealkalize processing of soda-lime glass system glass preliminary working thin plate more efficiently.
According to sealing backside member manufacturing method of the present invention, in above-mentioned hot water, add the metal ion of multivalence, the adsorption of metal ions of this multivalence as the silica surface of the framework ingredient of soda-lime glass preventing the dissolving of silica, thereby can suppress the damage of the superficial layer of sealing backside parts.
According to sealing backside member manufacturing method of the present invention,, can reduce the cost of the metal ion of multivalence because the metal ion of multivalence is an aluminium ion.
According to sealing backside member manufacturing method of the present invention, the pH of hot water is 3 to 10, can prevent the dissolving of silica, thereby can suppress the damage of the superficial layer of sealing backside parts.
According to the manufacture method of glass substrate of the present invention, the soda-lime glass system preliminary working thin plate of hot briquetting is implemented dealkalize handle, the glass substrate in the life-span that can increase organic EL can be provided at an easy rate.
According to the manufacture method of glass substrate of the present invention, dealkalize is handled and soda-lime glass system glass preliminary working thin plate to be immersed in the hot water and to be carried out, thereby can carry out the dealkalize processing of soda-lime glass system glass preliminary working thin plate efficiently.
According to the manufacture method of glass substrate of the present invention, the temperature of hot water is preferably 70 ℃ to 100 ℃, thereby can carry out the dealkalize processing of soda-lime glass system glass preliminary working thin plate more efficiently.
Manufacture method according to glass substrate of the present invention, in above-mentioned hot water, add the metal ion of multivalence, the adsorption of metal ions of this multivalence as the silica surface of the framework ingredient of soda-lime glass preventing the dissolving of silica, thereby can suppress the damage of the superficial layer of glass substrate.
According to the manufacture method of glass substrate of the present invention, because the metal ion of multivalence is an aluminium ion, the metal ion that can make multivalence is for low-cost.
According to the manufacture method of glass substrate of the present invention, the pH of hot water is 3 to 10, thereby can prevent the dissolving of silica, thereby can suppress the damage of the superficial layer of glass substrate.
According to organic EL of the present invention, owing to have sealing backside parts of the present invention, can suppress alkali metal ion from the stripping of sealing backside parts surface, prevent because the deterioration of the organic EL that causes of alkali metal ion, and then can increase the life-span of organic EL.
According to organic EL of the present invention, owing to have glass substrate of the present invention, so can suppress alkali metal ion, prevent because the deterioration of the organic EL that causes of alkali metal ion, and then can increase the life-span of organic EL from the glass baseplate surface stripping.
According to organic EL of the present invention, owing to have sealing backside parts of the present invention and glass substrate of the present invention, can suppress alkali metal ion each surperficial stripping from sealing backside parts and glass substrate, prevent because the deterioration of the organic EL that causes of alkali metal ion, and then can increase the life-span of organic EL.
Claims (23)
1. organic electroluminescent device sealing backside parts, this sealing backside component packages on the glass substrate to cover the organic electroluminescent device that forms on the described glass substrate, it is characterized in that, described sealing backside parts are made by soda-lime glass, and having superficial layer and the la m that links to each other with this superficial layer, the alkali metal ion concentration of described superficial layer is lower than the alkali metal ion concentration of described la m.
2. according to the organic electroluminescent device of claim 1 sealing backside parts, it is characterized in that the thickness of described superficial layer is 1nm to 1 μ m.
3. according to the organic electroluminescent device of claim 2 sealing backside parts, it is characterized in that the thickness of described superficial layer is 10nm to 100nm.
4. according to each organic electroluminescent device sealing backside parts in the claim 1 to 3, it is characterized in that, the mean value of the alkaline-earth metal ion concentration of described superficial layer be described la m the alkaline-earth metal ion concentration mean value 80% or more than.
5. organic electroluminescent device glass substrate, be formed with organic electroluminescent device on the upper surface of this glass substrate, and be packaged with the sealing backside parts to cover described organic electroluminescent device, it is characterized in that, described glass substrate is made by soda-lime glass, and having superficial layer and the la m that links to each other with this superficial layer, the alkali metal ion concentration of described superficial layer is lower than the alkali metal ion concentration of described la m.
6. according to the organic electroluminescent device glass substrate of claim 5, it is characterized in that the thickness of described superficial layer is 1nm to 1 μ m.
7. according to the organic electroluminescent device glass substrate of claim 6, it is characterized in that the thickness of described superficial layer is 10nm to 100nm.
8. according to each organic electroluminescent device glass substrate in the claim 5 to 7, it is characterized in that, the mean value of the alkaline-earth metal ion concentration of described superficial layer be the la m that links to each other with described superficial layer the alkaline-earth metal ion concentration mean value 80% or more than.
9. sealing backside member manufacturing method, wherein the glass preliminary working thin plate to soda-lime glass system carries out hot briquetting and makes organic electroluminescent device sealing backside parts, these sealing backside parts are used to be encapsulated on the glass substrate to cover the described organic electroluminescent device that forms on the described glass substrate, this manufacture method is characterised in that, the glass preliminary working thin plate of described hot briquetting is implemented dealkalize handle.
10. according to the sealing backside member manufacturing method of claim 9, it is characterized in that described dealkalize is handled and described glass preliminary working thin plate is immersed in the hot water and is carried out.
11. the sealing backside member manufacturing method according to claim 10 is characterized in that, the temperature of described hot water is 70 ℃ to 100 ℃.
12. the sealing backside member manufacturing method according to claim 10 is characterized in that, adds the metal ion of multivalence in described hot water.
13. the sealing backside member manufacturing method according to claim 12 is characterized in that the metal ion of described multivalence is an aluminium ion.
14. the sealing backside member manufacturing method according to claim 10 is characterized in that, the pH of described hot water is 3 to 10.
15. the manufacture method of a glass substrate, wherein carry out hot briquetting and make the organic electroluminescent device glass substrate by glass preliminary working thin plate to soda-lime glass system, be formed with organic electroluminescent device on the upper surface of this glass substrate, and be packaged with the sealing backside parts to cover the described organic electroluminescent device that forms on this glass substrate, this manufacture method is characterised in that, the glass preliminary working thin plate of described hot briquetting is implemented dealkalize handle.
16. the manufacture method according to the glass substrate of claim 15 is characterized in that, described dealkalize is handled and described glass preliminary working thin plate is immersed in the hot water and is carried out.
17. the manufacture method according to the glass substrate of claim 16 is characterized in that the temperature of described hot water is 70 ℃ to 100 ℃.
18. the manufacture method according to the glass substrate of claim 16 is characterized in that, adds the metal ion of multivalence in described hot water.
19. the manufacture method according to the glass substrate of claim 18 is characterized in that the metal ion of described multivalence is an aluminium ion.
20. the manufacture method according to the glass substrate of claim 16 is characterized in that the pH of described hot water is 3 to 10.
21. an organic electroluminescent device is characterized in that, has the described organic electroluminescent device of claim 1 sealing backside parts.
22. an organic electroluminescent device is characterized in that, has the described organic electroluminescent device glass substrate of claim 5.
23. an organic electroluminescent device is characterized in that, has the described organic electroluminescent device of claim 1 with sealing backside parts and the described organic electroluminescent device glass substrate of claim 5.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18679/2002 | 2002-01-28 | ||
| JP2002018679A JP2003217833A (en) | 2002-01-28 | 2002-01-28 | Back sealing can for organic electroluminescence display and manufacturing method for the sealing can |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1618255A true CN1618255A (en) | 2005-05-18 |
Family
ID=27653930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA028276140A Pending CN1618255A (en) | 2002-01-28 | 2002-12-26 | Back sealing member for organic electroluminescence device, glass substrate for organic electroluminescence device, organic electroluminescence device, and methods for manufacturing sealing member and |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP2003217833A (en) |
| KR (1) | KR20040077809A (en) |
| CN (1) | CN1618255A (en) |
| TW (1) | TW200306755A (en) |
| WO (1) | WO2003065769A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004014109A1 (en) * | 2002-07-31 | 2004-02-12 | Nippon Sheet Glass Co., Ltd. | Sealing plate for electroluminecense element and mother glass substrate for taking a large number of sealing plates |
| CN100423317C (en) * | 2004-04-01 | 2008-10-01 | 上海宏力半导体制造有限公司 | Organic electroluminescence assembly device and package method |
| JP2007212705A (en) * | 2006-02-09 | 2007-08-23 | Hoya Corp | Mask blank and photomask |
| KR100869127B1 (en) * | 2007-03-30 | 2008-11-17 | 주식회사 나모텍 | Organic Light Emitting Diode and Method for Manufacturing the Same |
| US8568184B2 (en) | 2009-07-15 | 2013-10-29 | Apple Inc. | Display modules |
| KR102568779B1 (en) * | 2016-05-30 | 2023-08-22 | 삼성디스플레이 주식회사 | Display device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5826052A (en) * | 1981-08-06 | 1983-02-16 | Asahi Glass Co Ltd | Glass body provided with alkali diffusion preventing silicon oxide film |
| JPS60176952A (en) * | 1984-02-23 | 1985-09-11 | Asahi Glass Co Ltd | Method for preventing weathering of glass |
| FR2696443B1 (en) * | 1992-10-02 | 1994-12-16 | Saint Gobain Vitrage Int | Glass substrate, obtained by dealkalization, used in the electronic field. |
| JPH09321564A (en) * | 1996-05-31 | 1997-12-12 | Aisin Seiki Co Ltd | Surface acoustic wave element |
| JP2848383B1 (en) * | 1997-11-26 | 1999-01-20 | 日本電気株式会社 | Manufacturing method of organic EL element |
| JPH11171598A (en) * | 1997-12-12 | 1999-06-29 | Asahi Glass Co Ltd | Surface treatment of glass |
| JPH11224780A (en) * | 1998-02-09 | 1999-08-17 | Casio Comput Co Ltd | Electroluminescence element |
| JP3409764B2 (en) * | 1999-12-28 | 2003-05-26 | 日本電気株式会社 | Manufacturing method of organic EL display panel |
| JP2002008854A (en) * | 2000-06-23 | 2002-01-11 | Sharp Corp | Organic light-emitting element |
| JP2003007453A (en) * | 2001-06-26 | 2003-01-10 | N S G Glass Components:Kk | Organic el element |
-
2002
- 2002-01-28 JP JP2002018679A patent/JP2003217833A/en not_active Withdrawn
- 2002-12-26 WO PCT/JP2002/013674 patent/WO2003065769A1/en active Application Filing
- 2002-12-26 TW TW091137468A patent/TW200306755A/en unknown
- 2002-12-26 KR KR10-2004-7011587A patent/KR20040077809A/en not_active Application Discontinuation
- 2002-12-26 CN CNA028276140A patent/CN1618255A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003217833A (en) | 2003-07-31 |
| TW200306755A (en) | 2003-11-16 |
| WO2003065769A1 (en) | 2003-08-07 |
| KR20040077809A (en) | 2004-09-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1320076C (en) | Adhesive for sealing organic electroluminescent element and use thereof | |
| CN1672468A (en) | Sealing plate for electroluminecense element and mother glass substrate for taking a large number of sealing plates | |
| CN1874626A (en) | Organic EL device | |
| CN1258205C (en) | Image display device, method of manufacture thereof, and apparatus for charging sealing material | |
| CN101051675A (en) | Organic light emitting apparatus and method of producing the same | |
| CN1816239A (en) | Organic light emitting device having cathode including a magnesium-calcium layer and method for fabricating the same | |
| CN1678145A (en) | Mask, method for manufacturing a mask, method for manufacturing an electro-optical device, and electronic equipment | |
| CN101030628A (en) | A method of fabricating organic electro-luminescent devices | |
| CN1941437A (en) | Gallium nitride based semiconductor light emitting diode and method of manufacturing the same | |
| JP6447389B2 (en) | Laminate with resin / glass composite | |
| CN1649074A (en) | Envelope for a flat panel display and flat panel display employing the envelope | |
| CN1266414A (en) | Glass panel, method of manufacturing glass panel, and spacer used for glass panel | |
| CN1841800A (en) | Method of forming a low temperature-grown buffer layer, light emitting element, method of making same, and light emitting device | |
| CN1297219A (en) | Method for mfg. glass base sheet of display device and glass base sheet obtained thereby for display device | |
| JPWO2007123039A1 (en) | Hot melt type member and organic EL display panel | |
| TW201601901A (en) | Composite, laminate, electronic device, and manufacturing methods therefor | |
| CN1617636A (en) | Organic luminous panel with hydrophobic layer | |
| CN1618255A (en) | Back sealing member for organic electroluminescence device, glass substrate for organic electroluminescence device, organic electroluminescence device, and methods for manufacturing sealing member and | |
| CN1606388A (en) | Organic electroluminescent device and manufacturing method thereof | |
| KR20150065606A (en) | Manufacturing method of electronic device | |
| CN1291267C (en) | Method for producing LCD panel | |
| CN1638582A (en) | Organic light emitting device and method of manufacturing the same | |
| CN1877854A (en) | Compound semiconductor substrate, epitaxial substrate, processes for producing compound semiconductor substrate, and epitaxial substrate | |
| CN1469688A (en) | EL device sealing plate and multi-sealing plate-base plate for producing mother glass | |
| CN1959999A (en) | Flat panel display and fabricating method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |