WO2003065769A1 - Element d'etancheite arriere destine a un dispositif electroluminescent organique, substrat en verre pour dispositif electroluminescent organique, dispositif electroluminescent organique et procedes pour fabriquer un element d'etancheite et substrat de verre - Google Patents

Element d'etancheite arriere destine a un dispositif electroluminescent organique, substrat en verre pour dispositif electroluminescent organique, dispositif electroluminescent organique et procedes pour fabriquer un element d'etancheite et substrat de verre Download PDF

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Publication number
WO2003065769A1
WO2003065769A1 PCT/JP2002/013674 JP0213674W WO03065769A1 WO 2003065769 A1 WO2003065769 A1 WO 2003065769A1 JP 0213674 W JP0213674 W JP 0213674W WO 03065769 A1 WO03065769 A1 WO 03065769A1
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WO
WIPO (PCT)
Prior art keywords
glass substrate
organic
sealing member
back sealing
glass
Prior art date
Application number
PCT/JP2002/013674
Other languages
English (en)
Japanese (ja)
Inventor
Toshio Akimoto
Yasuhiro Saito
Original Assignee
Nippon Sheet Glass Co., Ltd.
Nsg Precision Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Sheet Glass Co., Ltd., Nsg Precision Co., Ltd. filed Critical Nippon Sheet Glass Co., Ltd.
Priority to KR10-2004-7011587A priority Critical patent/KR20040077809A/ko
Publication of WO2003065769A1 publication Critical patent/WO2003065769A1/fr

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Classifications

    • 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
    • H05B33/02—Details
    • H05B33/04—Sealing arrangements, e.g. against humidity
    • 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

Definitions

  • the present invention relates to a back sealing member for an organic electroluminescence element, a glass substrate for an organic electroluminescence element, an organic electroluminescence element, and a method for manufacturing the sealing member and a glass substrate.
  • Organic electroluminescence (EL) devices have an organic multilayer film consisting of a hole transport layer, a light emitting layer, and an electron transport layer interposed between an anode and a cathode. This is a display element that performs charge injection recombination-type light-emitting operation. In addition to lowering the driving voltage, it can realize a wider range of emission colors due to the variety of organic materials.
  • the organic EL device is used as a light source of an organic EL display.
  • FIG. 5 is a cross-sectional view showing a schematic structure of a conventional organic EL device.
  • a conventional organic EL element 100 has a glass substrate 101, an organic EL element 102 formed on the surface of the glass substrate 101, and an organic EL element 102 on both sides.
  • a back sealing plate for organic EL elements (back sealing member) 105 bonded to the surface of the glass substrate 101 via the organic EL drive pattern forming portion 43.
  • the material of the glass substrate 101 is soda glass or non-alkali glass
  • the material of the rear sealing plate 105 is glass substrate 101 for metals such as SUS (stainless steel). Since the difference in thermal expansion between the back sealing plate 105 and the glass substrate 101 deteriorates due to a large difference in thermal expansion between them, soda glass or alkali glass is used.
  • a plurality of matrix-like integratedly arranged organic EL elements 100 are used for mass production.
  • the sealing plate member composed of the sealing plate 105 is bonded to a glass substrate member composed of a plurality of glass substrates 101 arranged integrally in the same matrix, the individual Glass that can be easily cut as the organic EL element 100 is preferable.
  • soda lime glass is used as the material for the glass substrate 101 and the sealing plate 105
  • the alkaline components elute from the glass over time, and the alkaline components elute from the glass. Accordingly, there is a problem that the organic EL element 102 is deteriorated and the life of the organic EL element 102 is shortened.
  • alkali-free glass has low moldability compared to soda-lime glass because it has a low softening temperature, although the alkali components are less eluted.
  • An object of the present invention is to provide a rear sealing member for an organic EL element capable of extending the life of an organic EL element, a glass substrate for an organic EL element, an organic electroluminescent element, Invention disclosure for providing a method for manufacturing a glass substrate
  • an organic electroluminescent device sealed on a glass substrate so as to cover an organic electroluminescent element formed on the glass substrate.
  • Back sealing for luminescence element In the member, the back surface sealing member is made of soda lime glass, and has a top surface layer and an inside layer following the top surface layer, and the alkali metal ion concentration of the top surface layer is the inside layer.
  • the present invention provides a back surface sealing member for an organic electroluminescence element, wherein the back surface sealing member has a lower concentration than the metal ion concentration.
  • the thickness of the outermost surface layer is 1 nm or more and 1 m or less.
  • the thickness of the outermost surface layer is 10 nm or more and 100 nm or less.
  • the average value of the alkaline earth metal ion concentration in the outermost surface layer is larger than the average value of the alkaline earth metal ion concentration in the inner layer. It is preferably at least 80%.
  • an organic electroluminescent element is formed on an upper surface, and the organic electroluminescent element covers the organic electroluminescent element.
  • the glass substrate for an organic electroluminescence element in which the back sealing member is sealed as described above the glass substrate is made of soda lime glass, and is formed of the outermost surface layer and the second surface layer. And an inner layer, wherein the concentration of the metallic ion of the outermost surface layer is lower than the concentration of the metallic ion of the inner layer.
  • a glass substrate for an element is provided.
  • the thickness of the outermost surface layer is 1 nm or more and 1 ⁇ m or less.
  • the thickness of the outermost surface layer is 10 nm or more and 100 nm or less.
  • the average value of the alkaline earth metal ion concentration in the outermost surface layer is an alkaline earth metal ion in an inner layer following the outermost surface layer. It is preferable that the concentration is 80% or more with respect to the average value of the ion concentration.
  • a back sealing member for manufacturing a back sealing member for an electoru luminescence element by heating and molding a glass substrate made of soda lime glass, the heat molded glass
  • a method for manufacturing a back surface sealing member which comprises subjecting a base plate to a dealkalization treatment.
  • the dealkalization treatment comprises immersing the glass plate in warm water.
  • the temperature of the hot water is 70 ° C. or more and 100 ° C. or less.
  • the polyvalent metal ion is an aluminum ion.
  • the hot water has a pH of 3 or more and 10 or less.
  • an organic electroluminescent device is formed on an upper surface, and the organic electroluminescent device covers the organic electroluminescent device.
  • the dealkalizing treatment is performed on the glass base plate.
  • it consists of immersing it in warm water.
  • the temperature of the hot water is 70 ° C. or more and 100 I or less.
  • the polyvalent metal ion is an aluminum ion.
  • the hot water has a pH of 3 or more and 10 or less.
  • a back sealing member for an organic electroluminescence element according to the first aspect of the present invention.
  • An organic EL luminescent element is provided.
  • the glass substrate for an organic electroluminescent element according to the second aspect of the present invention is provided.
  • An organic electroluminescent element is provided.
  • a back sealing member for an organic electroluminescence element according to the first aspect of the present invention And a glass substrate for an organic electroluminescent element according to the above aspect.
  • An organic electroluminescent element is provided.
  • FIG. 1 is a cross-sectional view of an organic EL device including a back sealing member and a glass substrate according to the first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of an organic EL device including a back sealing member and a glass substrate according to a modified example of the first embodiment of the present invention.
  • FIG. 3 is a cross-sectional view of an organic EL device including a back sealing member and a glass substrate according to a second embodiment of the present invention.
  • FIG. 4 is a cross-sectional view of an organic EL device including a back sealing member and a glass substrate according to a third embodiment of the present invention.
  • FIG. 5 is a cross-sectional view showing a schematic structure of a conventional organic EL device. BEST MODE FOR CARRYING OUT THE INVENTION
  • the present inventor has conducted intensive studies to achieve the above object, and as a result, the back sealing member and the glass substrate of the soda lime glass back sealing member for an organic EL element and the glass substrate are respectively the most preferred.
  • the concentration of alkali metal ions in the surface layer is lower than the concentration of alkali metal ions in the inner layer following the outermost layer, preferably when the thickness of the outermost layer is lnm or more and 1 m or less. More preferably, when the thickness of the outermost surface layer is 1 O nm or more and 100 nm or less, deterioration of the organic EL element due to alkali metal ions can be prevented. It was found that the lifetime of the organic EL element could be extended.
  • the present inventor provides a manufacturing method for manufacturing a back sealing member for an organic EL element and a glass substrate by heating and molding a glass base plate made of soda lime glass.
  • a de-alkaline treatment preferably, a treatment of immersing the glass base plate in warm water, it is possible to prevent the deterioration of the organic EL element due to the alkali metal ion, and the organic EL element is also used. It has been found that a back sealing member and a glass substrate that can extend the life of the element can be provided at low cost.
  • the present invention has been made based on the results of the above research.
  • FIG. 1 is a cross-sectional view of an organic EL device including a back sealing member for an organic EL device and a glass substrate according to a first embodiment of the present invention.
  • an organic EL device 10 including a back sealing member for an organic EL device and a glass substrate is a soda lime glass substrate 11 for an organic EL device, and a glass substrate.
  • An organic EL laminated film 12 formed on one surface of the substrate 11 and a pair of organic EL driving patterns formed on the surface of the glass substrate 11 at the outer peripheral edge of the organic EL laminated film 12 A glass substrate through an organic EL drive pattern forming section 13 by an adhesive layer 14 made of an ultraviolet curable epoxy resin or the like so as to house the organic EL laminated film 12 inside thereof.
  • a back sealing plate (back sealing member) 20 made of soda lime glass adhered on the surface of No. 1.
  • the glass substrate 11 is provided with a dealkalized part 15 on which the outermost layer has been dealkalized, and the rear sealing plate 20 has a dealkalized part on which the outermost layer has been dealkalized.
  • Part 2 1 is provided.
  • the back sealing plate 20 has a concave portion 23 formed in a part thereof, and the concave portion 23 stores a desiccant 24 such as an oxide barrier.
  • the thickness of each of the glass substrate 11 and the back sealing plate 20 is 0.7 mm, preferably 0.3 to 1.1 mm. If the thickness of each of the glass substrate 11 and the rear sealing plate 20 is less than 0.3 mm, the strength of each of the glass substrate 11 and the rear sealing plate 20 becomes insufficient, and If the thickness exceeds 1.1 mm, the organic EL element 10 becomes heavy.
  • the glass substrate 11 is formed by subjecting a soda lime glass substrate of the same shape and the same size as the glass substrate 11 to a dealkaline treatment, and the rear sealing plate 20 is first made of a soda lime glass.
  • the glass base plate is formed by heat molding, and the heat formed glass base plate is subjected to dealkalization treatment. As a result, the alkali metal ion concentration of the dealkalized part 15 of the glass base plate 11 is increased.
  • the alkali metal ion concentration of the inner layer 16 is smaller than the alkali metal ion concentration of the inner layer 16, and the alkali metal ion concentration of the alkali-free portion 21 of the rear sealing plate 20 is changed to the alkali metal ion concentration of the inner portion 22. It becomes smaller than the ion concentration.
  • the heat forming is performed by, for example, hot pressing using a forming die.
  • the hot press is carried out by inserting soda lime glass of 80 mm x 80 mm in thickness of 0.9 mm between the upper and lower molds, putting it into a heating furnace at 950 ° C, and molding. After cooling to 200 ° C or less, the molded product is paid out. Since the surface of the hot press forming die has fine irregularities of 1 to 10 m in Ra, the back sealing plate 20 formed by hot pressing has Fine irregularities are transferred to the surface, and the non-glare effect is enhanced.
  • the above-mentioned degraving is performed by immersing the glass plate in hot water. This makes it possible to dissolve the alkali metal ions in the outermost surface layer of the glass plate into warm water.
  • the temperature of the hot water is preferably not less than 70 ° C and not more than 100 ° C (boiling point). If the temperature of the hot water is set to less than 70, the efficiency of the decalcification process is reduced, and boiling exceeds 100 ° C (boiling point).
  • the time of the dealkalization treatment depends on the required performance of the glass substrate 11 and the back sealing plate 20, but is preferably 1 minute or more and 3 hours or less.
  • the polyvalent metal ion when a polyvalent metal ion is added to the above-mentioned warm water, the polyvalent metal ion is adsorbed on the surface of the glass skeleton, which is the skeletal component of the glass of the glass plate, to prevent the melting of the silica force. Therefore, damage to the outermost surface layer of the glass base plate can be suppressed, and the dealkalizing treatment can be performed efficiently.
  • the polyvalent metal ion aluminum nitrate or aluminum ion (trivalent) is preferable.
  • aluminum ion has high silica dissolution inhibiting effect and high safety. It is inexpensive.
  • the concentration of the polyvalent metal ion is preferably about 10 ppm to about 0.1%.
  • the pH of the warm water is preferably 3 or more and 10 or less. Hot water If the pH is 3 or less, the alkaline earth metal ion is easily eluted from the glass plate, and if the pH exceeds 10, the alkali metal ion becomes difficult to elute. The dissolution of silica is promoted, and damage is easily generated in the outermost surface layer of the glass plate.
  • the thickness and the metal ion concentration of the outermost layer 15 of the outermost layer of the glass substrate 11 and the outermost layer 21 of the outermost layer of the rear sealing plate 20 are as follows. Each is as follows.
  • the glass substrate 1 made of soda lime glass is used. Even if it is 1, the alkali metal ion is less likely to elute on the surface of the glass substrate 11.
  • the rear sealing plate 20 is also made of soda lime glass.
  • the sealing plate 20 It hardly elutes on the surface of the sealing plate 20, and the deterioration of the organic EL laminated film 12 due to alkali metal ions eluted from the glass substrate 11 and the back sealing plate 20 can be prevented. In addition, the formation of dark spots in the organic EL laminated film 12 is prevented. Since the material of the glass substrate 11 and the material of the back sealing plate 20 are both soda lime glass, the adhesiveness between the back sealing plate 20 and the glass substrate 11 is improved. be able to.
  • the thickness of the dealkalized parts 15 and 21 is preferably 1 nm or more and 1 nm or less, more preferably 10 nm or more and 100 nm or less. If the thickness of the decalcified portions 15 and 21 is less than 1 nm, the elution of alkali metal ions cannot be sufficiently prevented.If the thickness exceeds 10 m, the glass substrates 11 and 21 cannot be removed. The surface strength of the back sealing plate 20 decreases.
  • the average of the alkaline earth metal ion concentrations in the dealkalized part 15 is The average value of the alkaline earth metal ion concentration of the removal part 21 is compared with the average value of the alkaline earth metal ion concentration of the inner layer 16.
  • the average value of the earth metal ion concentration is 80% or less, the surface of each of the dealkalized parts 15 and 21 becomes porous. Alkali metal ions easily accumulate and easily move, so if the concentration of alkaline earth metal ions in the de-alkali parts 15 and 21 drops significantly, Alkali metal ions are easily eluted from the glass substrate 11 and the back sealing plate 20.
  • the average value of the alkaline earth metal ion concentration in the dealkalized part 15 is larger than the average value of the alkaline earth metal ion concentration in the inner layer 16.
  • the average value of the alkaline earth metal ion concentration of 1 is preferably 80% or more with respect to the average value of the alkaline earth metal ion concentration of the inner layer 22.
  • FIG. 2 is a cross-sectional view of an organic EL device including a back sealing member for an organic EL device and a glass substrate according to a modification of the first embodiment of the present invention.
  • an organic EL element 30 including a back sealing member for an organic EL element and a glass substrate according to a modification of the first embodiment of the present invention has the same structure.
  • the configuration is basically the same as that of the organic EL element 10 in FIG. 1.
  • the organic EL element 10 is replaced by a glass substrate 11 on a glass substrate 31, and a back sealing plate (back sealing member) 2 0 is replaced with a back sealing plate 32, and the same components are denoted by the same reference numerals, and redundant description will be omitted. Only different portions will be described below.
  • the organic EL element 30 shown in Fig. 2 is a sealed structure in which a plurality of soda-lime glass back sealing plates 32 are integrally arranged in a matrix for mass production of the organic EL element 30.
  • a plurality of soda lime glass substrates 31 each comprising an organic EL laminated film 12 and an organic EL driving pattern forming portion 13 were integrally arranged in the same matrix in the plate member. It is formed by bonding to a glass substrate member with an adhesive layer 14 and then cutting into individual organic EL elements 30.
  • the glass substrate 31 has, on its outermost surface layer, a dealkalized part 33 similar to the dealkalized part 15 of the glass substrate 11 in FIG. Unlike the glass substrate 11 in that the rear sealing plate 32 is not provided, the rear sealing plate 32 is provided on the outermost surface layer thereof with the same dealkalizing part 21 as the dealkalizing portion 21 of the rear sealing plate 20 in FIG. It is different from the rear sealing plate 20 in that it is provided with a recessed portion 35 but is not provided with a decalcified portion 35 on the cut end surface 36. .
  • the cut end face 34 of the glass substrate 31 not having the alkali removal part 33 and the cut end face 36 of the back sealing plate 32 not having the alkali removal part 35 are formed. However, since the organic EL element 12 is outside the portion where the organic EL element 12 is sealed, the organic EL element 12 does not deteriorate even if the cut end faces 34 and 36 are not subjected to the removal processing. .
  • FIG. 3 is a cross-sectional view of an organic EL device including a back sealing member for an organic EL device and a glass substrate according to a second embodiment of the present invention.
  • the glass substrate 41 is made of soda lime glass, and has the same shape and size as the glass substrate 11 in the organic EL element 10 in FIG.
  • the SiO 2 film 43 is laminated on the surface.
  • the back sealing plate 42 is made of soda lime glass, has the same shape and the same size as the back sealing plate 20 of the organic EL element 10 of FIG. 1, and has a SiO 2 film on its surface. 4 4 are stacked.
  • the S i 0 2 film 4 3 does not need to be laminated on the entire surface of the glass substrate 4 1, and in the organic EL element 40, the surface defining the inside 4 5 where the organic EL laminated film 12 is formed rather i as long as is stacked, also, S i 0 2 film 4 4 needs to be laminated on the entire surface of the rear seal plate 4 2 rather than, laminated on the surface defining the interior 4 5 Anything can be used.
  • the organic EL element 4 according to the second embodiment 0, has formed the rear sealing member 4 2 and the glass substrate 4 both 1 'S i 0 2 film, the back sealing member 4 2 ⁇ Pi glass substrate 4 1 only, preferably the back sealing member 4 2 only S i 0 2 film may be formed.
  • FIG. 4 is a cross-sectional view of an organic EL device including a back sealing member for an organic EL device and a glass substrate according to a third embodiment of the present invention.
  • an organic EL element 50 including a back surface sealing member for an organic EL element and a glass substrate has a configuration basically similar to that of the organic EL element 10 of FIG. It is the same, and differs from the first embodiment in that the glass substrate and the back sealing plate are subjected to the chemical strengthening treatment.
  • the same components will be denoted by the same reference numerals, without redundant description, and only different portions will be described below.
  • the glass substrate 51 is made of soda lime glass and has the same shape and the same size as the glass substrate 11 of the organic EL element 10 of FIG.
  • No. 1 a chemical strengthening treatment has been performed, and Na (sodium) atoms on the surface are converted into K (ca) atoms.
  • the back sealing plate 52 is made of soda lime glass, has the same shape and the same size as the back sealing plate 20 of the organic EL element 10 in FIG. 1, and the back sealing plate 52 is A chemical strengthening treatment has been applied, and: Na (Na) atoms on the surface have been converted to K (Ca) atoms.
  • the entire surface of the glass substrate 51 does not need to be subjected to the above-mentioned chemical strengthening treatment, and the surface defining the inside 53 of the organic EL element 50 where the organic EL laminated film 12 is formed is not required.
  • the back sealing plate 52 need not have been subjected to the above-described chemical strengthening treatment, and the surface defining the interior 53 may be sufficient. It is only necessary that the steel be subjected to a chemical strengthening treatment.
  • the glass substrate 51 is subjected to a chemical strengthening treatment, and the Na on the surface is converted to.
  • the back sealing plate 52 is chemically strengthened. Is applied, and Na on the surface is converted into K.
  • the alkali metal ions are prevented from being eluted from the glass substrate 51 and the rear sealing plate 52, and the organic EL laminated film using the alkali metal ions is prevented. 12 can be prevented from being deteriorated, and thus the formation of dark spots in the organic EL layered film 12 can be prevented.
  • the back sealing member 52 and the glass substrate 51 are both subjected to the chemical strengthening treatment, but one of the back sealing member 52 and the glass substrate 51 is used. Only, preferably, only the back sealing member 52 may be subjected to chemical strengthening treatment.
  • the organic EL element 10 having a back sealing plate 20 made of soda lime glass (Examples 6 to 10, Comparative Examples 5 to 8, Table 2) and the rear sealing plate 20 were subjected to a de-alkali treatment.
  • An organic EL device 10 (Comparative Example 9) having a back sealing plate 20 made of soda lime glass in which the thickness of the alkali-removed portion 21 was reduced to 0 mm without application was prepared.
  • the amount of precipitated alkali metal salt was evaluated and the dark spot generation time of the organic EL laminated film 12 was evaluated.
  • Back sealing plate strength was evaluated for Comparative Examples 1 to 5 and Comparative Examples 1 to 4 and 9.
  • the evaluation of the crystal deposition amount of the alkali metal salt was performed by exposing each of the above Examples 1 to 10 and Comparative Examples 1 to 9 for 120 hours under an environment of an ambient temperature of 60 ° C and a humidity of 80%. After that, by using a dark field observation with an optical microscope (X20.0 magnification), the metal salt deposited on the surface of each back sealing plate 20 of the above Examples 1 to 10 and Comparative Examples 1 to 9 was examined. The number of crystal grains (glass grains) was counted in the field of view, and ranks A to E were used. The evaluation shows that the amount of precipitated alkali metal salt crystals increases from evaluation A to evaluation E.
  • Back sealing plate 20 is organic EL laminated film 1 2 etc. 13674
  • Table 1 shows the evaluation of the crystal deposition amount of the alkali metal salt, the evaluation of the dark spot generation time of the organic EL laminated film 12 and the evaluation of the strength of the back sealing plate for Examples 1 to 5 and Comparative Examples 1 to 4 and 9. The result is shown.
  • Example 1 the overall evaluations of Examples 1 to 5 and Comparative Examples 1 to 4 and 9 are given in order of the thickness of 2 mm of the alkali-free part. It is shown as From the results of the evaluation of the crystal deposition amount of the alkali metal salt, the evaluation of the dark spot generation time of the organic EL laminated film 12, and the evaluation of the strength of the rear sealing plate in Table 1, the thickness of the alkali-free portion 21 is 1 nm or more and 1 or less. It was found that it is more preferable that the thickness be 10 nm or more and 100 nm or less.
  • Table 2 shows the results of the evaluation of the crystal deposition amount of the alkali metal salt and the evaluation of the dark spot generation time of the organic EL laminated film 12 for Examples 6 to 10 and Comparative Examples 5 to 9 described above.
  • the inner layer of the alkaline-earth metal ion concentration average value of the alkali-free metal part 21 of the rear sealing plate 20 was found. It has been found that the ratio of 22 to the average value of the alkaline earth metal ion concentration is preferably 80% or more.
  • the example a 1 N 0 predetermined time de-alkali treatment varies with warm water with and without addition of 3 (processing example 2) six Soviet one Dalai Mugarasu made subjected
  • the organic EL element 10 having the back sealing plate 20 (Examples 16 to 18 and Comparative Examples 13 to 15 and Table 4) was used for de-alkali treatment on the back sealing plate 20.
  • 10 kinds of solutes subjected to dealkalization treatment (treatment example 3) at a predetermined temperature and for a predetermined time with warm water having different pH, respectively.
  • the organic EL device 1 0 with Dara Lee arm glass rear sealing plate 2 0 (Example 1 9-2 3, Comparative Example 1 6-2 0, Table 5) was created.
  • Table 3 shows the relationship between the temperature of the hot water for dealkalization treatment in Treatment Example 1 and the thickness of the dealkalized portion 21 of the rear sealing plate 20.
  • Table 3 shows that the temperature of the hot water for the dealkalization treatment is preferably 70 or more.
  • Table 5 shows the thickness of the dealkalized part 21 of the rear sealing plate 20 and the alkaline earth metal of the dealkalized part 21 with respect to the pH of the hot water for deallocation by treatment example 3.
  • 2 shows the ratio of the average ion concentration to the average value of the internal 22 of the alkaline earth metal ions, and the relationship between the appearance inspection of the surface of the back sealing plate 20.
  • Example 1923 the comprehensive evaluations of Example 1923 'and Comparative Example 1620 were evaluated as evaluation ⁇ , evaluation ⁇ , and evaluation X, starting with the preferred pH as the de-alkaline treatment hot water. Shown. From Table 5, it was found that it is preferable that the pH of the hot water for dealkalization treatment is 3 or more and 10 or less.
  • the evaluation of the crystal deposition amount of the alkali metal salt, the evaluation of the dark spot generation time of the organic EL laminated film 12, the evaluation of the strength of the back sealing plate, the evaluation of the efficiency of the alkali removal treatment, and the evaluation of the back sealing The appearance inspection of the surface of the plate 20 was performed on the organic EL element 10 with the thickness of the rear part 21 of the back sealing plate 20 different from that of the embodiment 1 23 and the comparative example 120. Similarly, the thickness of the dealkalized portion 21 of the glass substrate 11 was different from that of the back sealing plate 20 of Example 123 and Comparative Example 120 in the same manner.
  • the present inventor made a glass substrate 41 made of soda lime glass and having Sio 2 laminated on the surface thereof, and made of soda lime glass and made of soda lime glass.
  • S i 0 2 organic EL element 4 0 in FIG. 3 with a rear seal plate 4 2 are stacked (example 2 4)
  • Contact with and chemical strengthening treatment which is made ⁇ Pi Sodarai Mugarasu is applied to
  • the glass substrate 51 whose surface Na has been converted to K, and which is made of V—Dry glass and has been subjected to a chemical strengthening treatment, and the surface Na has been converted to K.
  • the organic EL device 50 (Example 25) of FIG. 4 including the back surface sealing plate 52 was produced.
  • Examples 24 and 25 were stored in a driving state under a high-temperature environment at an ambient temperature of 100 X until dark spots were generated.
  • the dark spot generation time was evaluated by measuring the time of the dark spot.
  • Table 6 shows the results of the dark spot occurrence time evaluation.
  • Table 6 shows that in the organic EL elements 40 and 50, in the organic EL elements 40 and 50, the glass substrates 41 and 51 and the back sealing plates 42 and 52 are made of soda lime glass and have Si 0 2 on the surface.
  • the glass substrate 41 when laminated, and when made of soda lime glass and subjected to chemical strengthening treatment and Na on the surface is converted to K, the glass substrate 41, even in a high temperature environment, It can be seen that alkaline metal ions can be prevented from being eluted from 51 and the rear sealing plates 42, 52, and the dark spot generation time can be prolonged.
  • the thickness of the outermost surface layer of the back sealing member Is not less than 100 nm and not more than 100 nm, it is possible to further suppress the elution of metal ions from the surface of the back sealing member.
  • the average value of the alkaline earth metal ion concentration in the outermost surface layer of the back sealing member is changed to the alkaline earth metal of the inner layer following the outermost surface layer. Since the average value of the metal ion concentration is 80% or more, the elution of alkaline metal ions from the surface of the back sealing member can be further suppressed.
  • the glass substrate of the present invention is made of soda lime glass, and the concentration of alkali metal ions in the outermost surface layer is lower than the concentration of alkali metal ions in the inner layer following the uppermost surface layer. Therefore, elution of alkali metal ions from the surface of the glass substrate can be suppressed, and deterioration of the organic EL element due to alkali metal ions can be prevented. Can be increased.
  • the polyvalent metal ion is added to the hot water, the polyvalent metal ion is added to the surface of the silica, which is a skeletal component of soda lime glass. Adsorption prevents silica from dissolving, thereby suppressing damage to the outermost surface layer of the back sealing member.
  • the pH of the hot water is 3 or more and 10 or less, dissolution of silica can be prevented, and thus the outermost surface layer of the back sealing member can be prevented. Damage can be suppressed.
  • the soda lime glass base plate that has been formed by heating is subjected to dealkalizing treatment, so that the life of the organic EL element can be increased. Can be provided at low cost.
  • the dealkalizing process is a process of immersing the sodalime glass base plate in warm water. It can be applied efficiently.
  • the temperature of the hot water is not less than 70 ° C. and not more than 100 ° C., so that the soda lime glass base plate is more efficiently removed. Can be applied in a targeted manner.
  • the organic EL device of the present invention since the back sealing member of the present invention is provided, elution of the alkali metal ions from the surface of the back sealing member is suppressed, and the organic EL device is formed of alkali metal ions. The deterioration of the device can be prevented, and the life of the organic EL device can be prolonged.
  • the organic EL device of the present invention since the glass substrate of the present invention is provided, elution of alkali metal ions from the surface of the glass substrate is suppressed, and deterioration of the organic EL device due to the alkali metal ions is suppressed. Thus, the lifetime of the organic EL device can be increased.
  • the organic EL device of the present invention since the organic EL device includes the back sealing member of the present invention and the glass substrate of the present invention, the back sealing member of the metal ion and the respective surfaces of the glass substrate are provided. It is possible to prevent the organic EL element from deteriorating due to the alkali metal ions by suppressing the elution from the organic EL element, and also to prolong the life of the organic EL element.

Abstract

Elément d'étanchéité arrière destiné à un dispositif électroluminescent organique qui est capable de prolonger la durée de vie du dispositif, substrat en verre destiné à un dispositif électroluminescent organique, dispositif électroluminescent organique et procédés pour fabriquer l'élément d'étanchéité et le substrat de verre. Un dispositif électroluminescent organique (10) comprend un substrat en verre sodo-calcique (11), un film OEL stratifié (12) formé sur un côté du substrat en verre (11), une paire de parties de formation de motif de commande OEL (13) formées à la surface du substrat en verre (11), dans la région périphérique du film OEL stratifié (12), et une plaque d'étanchéité arrière (20) en verre sodo-calcique, conçue pour un dispositif OEL et collée au substrat en verre (11) à travers une couche adhésive (14) de manière à ce que le film OEL stratifié (12) se trouve à l'intérieur, et que les parties de formation de motif de commande OEL (13) soient interposées entre la couche adhésive et la plaque d'étanchéité arrière. Le substrat en verre (11) comprend une partie désalcalinisée (15) soumise à la désalcalinisation sur sa couche la plus à l'extérieur, et la plaque d'étanchéité arrière (20) comprend une partie désalcalinisée (21) soumise à la désalcalinisation de sa couche la plus à l'extérieur.
PCT/JP2002/013674 2002-01-28 2002-12-26 Element d'etancheite arriere destine a un dispositif electroluminescent organique, substrat en verre pour dispositif electroluminescent organique, dispositif electroluminescent organique et procedes pour fabriquer un element d'etancheite et substrat de verre WO2003065769A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR10-2004-7011587A KR20040077809A (ko) 2002-01-28 2002-12-26 유기 전계발광 소자용 배면 봉지 부재, 및 유기 전계발광소자용 유리 기판, 유기 전계발광 소자, 및 이 봉지 부재및 유리 기판의 제조 방법

Applications Claiming Priority (2)

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JP2002-18679 2002-01-28
JP2002018679A JP2003217833A (ja) 2002-01-28 2002-01-28 有機エレクトロルミネッセンスディスプレイ用背面封止缶、及び該封止缶の製造方法

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100423317C (zh) * 2004-04-01 2008-10-01 上海宏力半导体制造有限公司 有机电激发光组件的装置及其封装方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004014109A1 (fr) * 2002-07-31 2004-02-12 Nippon Sheet Glass Co., Ltd. Plaque d'etancheite pour element electroluminescent et substrat de verre mere permettant de recevoir un nombre important de plaques d'etancheite
JP2007212705A (ja) * 2006-02-09 2007-08-23 Hoya Corp マスクブランク及びフォトマスク
KR100869127B1 (ko) * 2007-03-30 2008-11-17 주식회사 나모텍 유기발광다이오드 및 그의 제조방법
US8568184B2 (en) 2009-07-15 2013-10-29 Apple Inc. Display modules
KR102568779B1 (ko) * 2016-05-30 2023-08-22 삼성디스플레이 주식회사 디스플레이 장치

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5826052A (ja) * 1981-08-06 1983-02-16 Asahi Glass Co Ltd アルカリ拡散防止酸化ケイ素膜付ガラス体
JPS60176952A (ja) * 1984-02-23 1985-09-11 Asahi Glass Co Ltd ガラスの焼け防止法
JPH07506329A (ja) * 1992-10-02 1995-07-13 サン―ゴバン　ビトラージュ エレクトロニクスに用いられ，脱アルカリにより得られるガラス基体
JPH09321564A (ja) * 1996-05-31 1997-12-12 Aisin Seiki Co Ltd 表面弾性波素子
JPH11162639A (ja) * 1997-11-26 1999-06-18 Nec Corp 有機ｅｌ素子の製造方法
JPH11171598A (ja) * 1997-12-12 1999-06-29 Asahi Glass Co Ltd ガラスの表面処理方法
JPH11224780A (ja) * 1998-02-09 1999-08-17 Casio Comput Co Ltd 電界発光素子
EP1115267A2 (fr) * 1999-12-28 2001-07-11 Nec Corporation Panneau d'affichage électroluminescent en matière organique et procédé pour sa fabrication
JP2002008854A (ja) * 2000-06-23 2002-01-11 Sharp Corp 有機発光素子
JP2003007453A (ja) * 2001-06-26 2003-01-10 N S G Glass Components:Kk 有機ｅｌ素子

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5826052A (ja) * 1981-08-06 1983-02-16 Asahi Glass Co Ltd アルカリ拡散防止酸化ケイ素膜付ガラス体
JPS60176952A (ja) * 1984-02-23 1985-09-11 Asahi Glass Co Ltd ガラスの焼け防止法
JPH07506329A (ja) * 1992-10-02 1995-07-13 サン―ゴバン　ビトラージュ エレクトロニクスに用いられ，脱アルカリにより得られるガラス基体
JPH09321564A (ja) * 1996-05-31 1997-12-12 Aisin Seiki Co Ltd 表面弾性波素子
JPH11162639A (ja) * 1997-11-26 1999-06-18 Nec Corp 有機ｅｌ素子の製造方法
JPH11171598A (ja) * 1997-12-12 1999-06-29 Asahi Glass Co Ltd ガラスの表面処理方法
JPH11224780A (ja) * 1998-02-09 1999-08-17 Casio Comput Co Ltd 電界発光素子
EP1115267A2 (fr) * 1999-12-28 2001-07-11 Nec Corporation Panneau d'affichage électroluminescent en matière organique et procédé pour sa fabrication
JP2002008854A (ja) * 2000-06-23 2002-01-11 Sharp Corp 有機発光素子
JP2003007453A (ja) * 2001-06-26 2003-01-10 N S G Glass Components:Kk 有機ｅｌ素子

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100423317C (zh) * 2004-04-01 2008-10-01 上海宏力半导体制造有限公司 有机电激发光组件的装置及其封装方法

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KR20040077809A (ko) 2004-09-06

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