JP2003068447A - El lamp and its manufacturing method - Google Patents
El lamp and its manufacturing methodInfo
- Publication number
- JP2003068447A JP2003068447A JP2001254318A JP2001254318A JP2003068447A JP 2003068447 A JP2003068447 A JP 2003068447A JP 2001254318 A JP2001254318 A JP 2001254318A JP 2001254318 A JP2001254318 A JP 2001254318A JP 2003068447 A JP2003068447 A JP 2003068447A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- lamp
- moisture
- lower sheet
- metal
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 28
- 239000010409 thin film Substances 0.000 claims abstract description 20
- 239000011888 foil Substances 0.000 claims abstract description 15
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 14
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 14
- 229910001512 metal fluoride Inorganic materials 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 claims description 38
- 239000000463 material Substances 0.000 claims description 7
- 239000012790 adhesive layer Substances 0.000 claims description 2
- 238000010030 laminating Methods 0.000 abstract 1
- 239000004831 Hot glue Substances 0.000 description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000010408 film Substances 0.000 description 5
- -1 polyethylene terephthalate Polymers 0.000 description 5
- 229920003002 synthetic resin Polymers 0.000 description 5
- 239000000057 synthetic resin Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000005083 Zinc sulfide Substances 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 2
- 229910002113 barium titanate Inorganic materials 0.000 description 2
- 238000010549 co-Evaporation Methods 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910052984 zinc sulfide Inorganic materials 0.000 description 2
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 2
- YMRMDGSNYHCUCL-UHFFFAOYSA-N 1,2-dichloro-1,1,2-trifluoroethane Chemical compound FC(Cl)C(F)(F)Cl YMRMDGSNYHCUCL-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 101100321669 Fagopyrum esculentum FA02 gene Proteins 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 description 1
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Electroluminescent Light Sources (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、各種電子機器の表
示部や操作部の照明等に用いられるＥＬランプ及びその
製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an EL lamp used for illumination of a display section or an operation section of various electronic devices and a method for manufacturing the EL lamp.
【０００２】[0002]
【従来の技術】近年、各種電子機器の薄型化や小型化が
進むに伴い、これらの表示パネルやＬＣＤの後方に照明
用のバックライトとして使用されるＥＬランプにも、薄
型・小型化が求められている。2. Description of the Related Art In recent years, as electronic devices have become thinner and more compact, EL lamps used as backlights for illumination behind these display panels and LCDs are also required to be thin and compact. Has been.
【０００３】このような従来のＥＬランプについて、図
３及び図４を用いて説明する。Such a conventional EL lamp will be described with reference to FIGS. 3 and 4.
【０００４】図３は従来のＥＬランプの断面図、図４は
同分解断面図であり、同図において、１はポリエチレン
テレフタレート等の光透過性の基材で、この上面の全面
にスパッタ法または電子ビーム法等によって、酸化イン
ジウム錫からなる光透過性電極層２が形成されている。FIG. 3 is a sectional view of a conventional EL lamp, and FIG. 4 is an exploded sectional view of the same. In FIG. 3, reference numeral 1 is a light-transmissive base material such as polyethylene terephthalate. The light transmissive electrode layer 2 made of indium tin oxide is formed by an electron beam method or the like.
【０００５】また、アルミニウム等の金属箔の背面電極
層５下面に、合成樹脂にチタン酸バリウム等を分散させ
た誘電体層４や、同じく合成樹脂に発光の母材となる硫
化亜鉛等の蛍光体を分散させた発光体層３が順次重ねて
形成されて、ＥＬ素子６が構成されている。In addition, on the lower surface of the back electrode layer 5 of a metal foil such as aluminum, a dielectric layer 4 in which barium titanate or the like is dispersed in a synthetic resin, or a fluorescent material such as zinc sulfide which is also a base material of light emission in the synthetic resin. The EL element 6 is formed by sequentially stacking the light-emitting body layers 3 in which the bodies are dispersed.
【０００６】そして、７はナイロン６等の吸湿シート、
８及び９はＥＬ素子６の上下に配置された三フッ化塩化
エチレン等の上、下シート、１０及び１１は銅合金等の
導電薄板製の金属端子で、金属端子１０の一端は光透過
性電極層２に、金属端子１１の一端は背面電極層５に各
々接続されている。And, 7 is a moisture absorbent sheet of nylon 6 or the like,
Reference numerals 8 and 9 denote upper and lower sheets of trifluorochloroethylene and the like disposed above and below the EL element 6, and 10 and 11 denote metal terminals made of a conductive thin plate such as a copper alloy. One end of the metal terminal 10 is light-transmissive. One end of the metal terminal 11 is connected to the electrode layer 2 and the back electrode layer 5 is connected thereto.
【０００７】また、上シート８下面と下シート９上面に
形成されたホットメルト接着層１２と１３によって、
上、下シート８と９の外周が貼合わされ、この間にＥＬ
素子６が挟まれて封止されると共に、金属端子１０と１
１の他端が外方に突出して、ＥＬランプが構成されてい
る。Further, by the hot melt adhesive layers 12 and 13 formed on the lower surface of the upper sheet 8 and the upper surface of the lower sheet 9,
The outer peripheries of the upper and lower sheets 8 and 9 are pasted together, and the EL
The element 6 is sandwiched and sealed, and the metal terminals 10 and 1
The other end of 1 projects to the outside to form an EL lamp.
【０００８】なお、上シート８と下シート９に用いた三
フッ化塩化エチレンは、樹脂フィルムの中では最も透湿
性の小さなものであるが、一般に樹脂フィルムの分子構
造は水分子の大きさに対して疎であるため、防湿性確保
のため通常は２５０μｍ程度の厚さのものが使用されて
いる。The trifluoroethylene chloride used for the upper sheet 8 and the lower sheet 9 has the smallest moisture permeability among the resin films, but the molecular structure of the resin film is generally the same as that of water molecules. Since it is sparse, it is usually used with a thickness of about 250 μm in order to secure moisture resistance.
【０００９】以上の構成において、ＥＬランプを電子機
器に装着し、電子機器の回路（図示せず）から金属端子
１０と１１を介して光透過性電極層２と背面電極層５に
交流電圧を印加すると、この間の発光体層３内の蛍光体
が発光し、この光が下シート９を通って電子機器の表示
パネルやＬＣＤ等を後方から照光するため、周囲が暗い
場合でも表示部や操作部の識別を明確に行うことができ
るものであった。In the above structure, the EL lamp is mounted on an electronic device, and an AC voltage is applied to the light transmissive electrode layer 2 and the back electrode layer 5 from a circuit (not shown) of the electronic device through the metal terminals 10 and 11. When applied, the phosphor in the light emitting layer 3 in the meantime emits light, and this light passes through the lower sheet 9 and illuminates the display panel of the electronic device, the LCD, or the like from the rear side, so that the display section and the operation can be performed even in the dark surroundings. It was possible to clearly identify the parts.
【００１０】[0010]
【発明が解決しようとする課題】しかしながら上記従来
のＥＬランプにおいては、防湿のためのＥＬ素子６を封
止する上、下シート８と９の厚さが２５０μｍ程度と厚
いため、ＥＬランプ全体が０．７〜０．８ｍｍの厚さと
なってしまい、薄型化を図ることが困難であるという課
題があった。However, in the conventional EL lamp described above, the EL element 6 for preventing moisture is sealed and the thickness of the lower sheets 8 and 9 is as thick as about 250 μm. There is a problem that it becomes difficult to reduce the thickness because the thickness becomes 0.7 to 0.8 mm.
【００１１】また、この対策として、発光体層３内の蛍
光体を金属酸化物等で被覆して、湿気による蛍光体の輝
度低下の防止を図り、上、下シート８，９を薄くする方
法があるが、この場合には、被覆によって蛍光体の輝度
が低下してしまうという課題が生ずる。As a countermeasure against this, the phosphor in the light emitting layer 3 is coated with a metal oxide or the like to prevent the brightness of the phosphor from lowering due to moisture, and the upper and lower sheets 8 and 9 are thinned. However, in this case, there arises a problem that the brightness of the phosphor is lowered by the coating.
【００１２】本発明は、このような従来の課題を解決す
るものであり、薄型化が図れ、高輝度のＥＬランプ及び
その製造方法を提供することを目的とする。SUMMARY OF THE INVENTION The present invention is intended to solve such a conventional problem, and an object thereof is to provide an EL lamp which can be made thin and has high brightness, and a manufacturing method thereof.
【００１３】[0013]
【課題を解決するための手段】上記目的を達成するため
に本発明は、以下の構成を有するものである。In order to achieve the above object, the present invention has the following constitution.
【００１４】本発明の請求項1に記載の発明は、上シー
トの下面に金属箔をラミネートすると共に、下シートの
上面に金属酸化物または金属酸化物と金属フッ化物によ
って防湿性薄膜を形成し、この上、下シートによってＥ
Ｌ素子を封止してＥＬランプを構成したものであり、分
子構造が密な金属箔と防湿性薄膜によって防湿性が高め
られるため、上、下シートの厚さを薄くし、薄型化が図
れ、高輝度のＥＬランプを得ることができるという作用
を有する。In the invention described in claim 1 of the present invention, a metal foil is laminated on the lower surface of the upper sheet, and a moisture-proof thin film is formed on the upper surface of the lower sheet by a metal oxide or a metal oxide and a metal fluoride. , E by the upper and lower sheets
This is an EL lamp configured by encapsulating an L element, and since the moisture resistance is enhanced by the metal foil having a dense molecular structure and the moisture-proof thin film, the thickness of the upper and lower sheets can be reduced to achieve a thinner profile. It has the effect that a high-brightness EL lamp can be obtained.
【００１５】請求項２に記載の発明は、請求項１記載の
発明において、上シートの外周を折曲し、これと下シー
ト外周とを接着してＥＬ素子を封止したものであり、比
較的弾性のある金属箔がラミネートされた上シート側を
折曲して上、下シートを貼合わせることによって、下シ
ートの金属酸化物や金属フッ化物等の防湿性薄膜の破損
を防止することができるという作用を有する。The invention according to claim 2 is the invention according to claim 1, wherein the outer periphery of the upper sheet is bent and the outer periphery of the lower sheet is adhered to seal the EL element. By bending the upper sheet side laminated with a mechanically elastic metal foil and sticking the upper and lower sheets together, it is possible to prevent damage to the moisture-proof thin film such as metal oxide or metal fluoride of the lower sheet. It has the effect of being able to.
【００１６】請求項３に記載の発明は、請求項１記載の
発明において、下シートと防湿性薄膜を複数層積層した
ものであり、防湿性をさらに向上することができるとい
う作用を有する。According to a third aspect of the present invention, in the first aspect of the present invention, the lower sheet and the moisture-proof thin film are laminated in a plurality of layers, and it has an effect that the moisture-proof property can be further improved.
【００１７】請求項４に記載の発明は、上シートとＥＬ
素子及び下シートを重ね、上シート側から加圧加熱し
て、上、下シート外周を接着封止する請求項１記載のＥ
Ｌランプの製造方法としたものであり、上シート側を加
圧加熱することによって上シートにラミネートされた金
属箔が折曲し易くなると共に、全体が加熱されて下シー
トの防湿性薄膜にも破損が生じにくくなるため、ＥＬラ
ンプの製作を容易に行うことができるという作用を有す
る。According to a fourth aspect of the present invention, there is provided an upper sheet and an EL.
The device according to claim 1, wherein the element and the lower sheet are overlapped with each other, and the upper and lower sheets are pressurized and heated to adhesively seal the outer peripheries of the upper and lower sheets.
This is a method for manufacturing an L lamp, and by heating the upper sheet side under pressure, the metal foil laminated on the upper sheet is easily bent, and at the same time, the entire sheet is heated to form a moisture-proof thin film of the lower sheet. Since the breakage is less likely to occur, the EL lamp can be easily manufactured.
【００１８】[0018]
【発明の実施の形態】以下、本発明の実施の形態につい
て、図１及び図２を用いて説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS.
【００１９】なお、従来の技術の項で説明した構成と同
一構成の部分には同一符号を付して、詳細な説明を簡略
化する。The same components as those described in the section of the prior art are designated by the same reference numerals to simplify the detailed description.
【００２０】（実施の形態）図１は本発明の一実施の形
態によるＥＬランプの断面図、図２は同分解断面図であ
り、同図において、１は厚さ７５μｍのポリエチレンテ
レフタレートやポリイミドフィルム等の光透過性の基材
で、この上面の全面または所定の箇所にスパッタ法また
は電子ビーム法、或いは酸化インジウム錫等を分散した
合成樹脂を印刷して、光透過性電極層２Ａが形成されて
いる。(Embodiment) FIG. 1 is a sectional view of an EL lamp according to an embodiment of the present invention, and FIG. 2 is an exploded sectional view thereof. In FIG. 1, 1 is a polyethylene terephthalate or polyimide film having a thickness of 75 μm. A light transmissive electrode layer 2A is formed on the entire upper surface of the upper surface or a predetermined portion of the light transmissive base material by a sputtering method, an electron beam method, or a synthetic resin in which indium tin oxide or the like is dispersed. ing.
【００２１】そして、この上に、フッ素ゴムやシアノ系
樹脂等の高誘電性の合成樹脂に発光の母材となる硫化亜
鉛等の蛍光体を分散させた発光体層３や、同じく高誘電
性の合成樹脂にチタン酸バリウム等を分散させた誘電体
層４、銀やカーボンレジン系の背面電極層５Ａが順次重
ねて印刷形成されて、ＥＬ素子６Ａが構成されている。On top of this, a phosphor layer 3 in which a phosphor such as zinc sulfide, which is a base material for light emission, is dispersed in a highly dielectric synthetic resin such as fluororubber or a cyano resin, and similarly, a high dielectric layer The EL element 6A is formed by sequentially stacking and printing the dielectric layer 4 in which barium titanate or the like is dispersed in the above synthetic resin and the back electrode layer 5A of silver or carbon resin based on each other.
【００２２】また、７は厚さ２５μｍのナイロン６等の
吸湿シート、１５及び１６はＥＬ素子６Ａの上下に配置
された、厚さ２５μｍのポリエチレンテレフタレートフ
ィルム等の上、下シート、１７及び１８は銅合金等の導
電薄板製の金属端子で、金属端子１７，１８には複数の
折曲部が設けられ、金属端子１７の一端は光透過性電極
層２Ａに、金属端子１８の一端は背面電極層５Ａに各々
接続されている。Further, 7 is a hygroscopic sheet of nylon 6 or the like having a thickness of 25 μm, 15 and 16 are upper and lower sheets of polyethylene terephthalate film having a thickness of 25 μm disposed above and below the EL element 6A, and 17 and 18 are A metal terminal made of a conductive thin plate such as a copper alloy. The metal terminals 17 and 18 are provided with a plurality of bent portions. One end of the metal terminal 17 is the light-transmissive electrode layer 2A, and one end of the metal terminal 18 is a back electrode. Each is connected to layer 5A.
【００２３】そして、上シート１５下面にラミネートさ
れた厚さ２５ｎｍのアルミニウム等の金属箔１９上に
は、厚さ２０μｍのオレフィン系のホットメルト接着層
１２Ａが形成されると共に、下シート１６上面には厚さ
６０μｍの金属酸化物または金属酸化物と金属フッ化物
によって防湿性薄膜２０が形成されている。Then, an olefin-based hot melt adhesive layer 12A having a thickness of 20 μm is formed on a metal foil 19 such as aluminum having a thickness of 25 nm laminated on the lower surface of the upper sheet 15 and an upper surface of the lower sheet 16 is provided. The moisture-proof thin film 20 is formed of metal oxide or metal oxide and metal fluoride having a thickness of 60 μm.
【００２４】さらに、下シート１６の防湿性薄膜２０上
には、上シート１５と同様に厚さ２０μｍのオレフィン
系のホットメルト接着層１３Ａが形成され、このホット
メルト接着層１２Ａと１３Ａによって、折曲された上シ
ート１５の外周と下シート１６の外周が貼合わされてい
る。Further, an olefin-based hot melt adhesive layer 13A having a thickness of 20 μm is formed on the moisture-proof thin film 20 of the lower sheet 16 in the same manner as the upper sheet 15, and the hot melt adhesive layers 12A and 13A are used to fold it. The outer periphery of the bent upper sheet 15 and the outer periphery of the lower sheet 16 are attached to each other.
【００２５】そして、この上、下シート１５，１６の間
にＥＬ素子６Ａが挟まれて封止されると共に、折曲され
た金属端子１７と１８の他端が下シート１６上から水平
に外方に突出して、ＥＬランプが構成されている。Then, the EL element 6A is sandwiched between the upper and lower sheets 15 and 16 to be sealed, and the other ends of the bent metal terminals 17 and 18 are horizontally outside the lower sheet 16. The EL lamp is configured so as to project toward one side.
【００２６】以上の構成において、このＥＬランプを電
子機器に装着し、電子機器の回路（図示せず）から金属
端子１７と１８を介して光透過性電極層２Ａと背面電極
層５Ａに交流電圧を印加すると、この間の発光体層３内
の蛍光体が発光し、この光が下シート１６を通って電子
機器の表示パネルやＬＣＤ等を後方から照光するため、
周囲が暗い場合でも表示部や操作部の識別を明確に行う
ことができる。In the above structure, this EL lamp is mounted on an electronic device, and an AC voltage is applied from the circuit (not shown) of the electronic device to the light transmissive electrode layer 2A and the back electrode layer 5A via the metal terminals 17 and 18. When the voltage is applied, the phosphor in the light emitting layer 3 in the meantime emits light, and this light passes through the lower sheet 16 to illuminate the display panel of the electronic device, the LCD or the like from the rear,
Even when the surroundings are dark, the display unit and the operation unit can be clearly identified.
【００２７】次に、以上のようなＥＬランプの具体的な
製作方法と、その特性について説明する。Next, a specific manufacturing method of the above EL lamp and its characteristics will be described.
【００２８】先ず、図２に示すように、基台２１の上
に、酸化珪素と酸化チタンを共蒸着した防湿性薄膜２０
やホットメルト接着層１３Ａを上にして下シート１６を
載置し、この上の所定位置にＥＬ素子６Ａを発光面であ
る基材１側を下にして載置する。First, as shown in FIG. 2, a moisture-proof thin film 20 formed by co-evaporating silicon oxide and titanium oxide on a base 21.
The lower sheet 16 is placed with the hot melt adhesive layer 13A facing upward, and the EL element 6A is placed at a predetermined position on the substrate 1 with the substrate 1 side, which is the light emitting surface, facing downward.
【００２９】そして、この上に金属端子１７と１８、吸
湿シート７、金属箔１９やホットメルト接着層１２Ａを
下にした上シート１５を重ねた後、上、下シート１５，
１６外周を、例えば、雰囲気温度１２０℃中でゴム等に
よって５ｋｇ／ｃｍ2圧で上シート１５側から加圧加熱
して、上、下シート１５，１６外周を接着封止する。Then, the metal sheets 17 and 18, the moisture absorbing sheet 7, the metal foil 19 and the upper sheet 15 with the hot-melt adhesive layer 12A underneath are superposed thereon, and then the upper and lower sheets 15 and
The outer periphery of the upper and lower sheets 15 and 16 is adhesively sealed by heating the outer periphery of the upper and lower sheets 15 and 16 at a pressure of 5 kg / cm 2 with rubber or the like at an ambient temperature of 120 ° C., for example.
【００３０】この結果、防湿性薄膜２０が形成された下
シート１６側には大きな力が殆ど加わらず、上シート１
５の外周が下方へ折曲され、これと下シート１６外周と
が接着されて、上、下シート１５，１６間にＥＬ素子６
Ａが封止される。As a result, a large force is hardly applied to the lower sheet 16 side on which the moisture-proof thin film 20 is formed, and the upper sheet 1
The outer periphery of 5 is bent downward and the outer periphery of the lower sheet 16 is adhered to the EL element 6 between the upper and lower sheets 15 and 16.
A is sealed.
【００３１】なお、このようにして製作したＥＬランプ
全体の厚みは約０．２５ｍｍでありこのＥＬランプを６
０℃９５％ＲＨ湿度槽中に１００Ｖ４００Ｈｚで連続点
灯させ、初期輝度との輝度変化率を確認したところ、９
６時間後では８８％、２４０時間後では７６％であっ
た。The total thickness of the EL lamp manufactured in this way is about 0.25 mm.
When the rate of change in luminance from the initial luminance was confirmed by continuously lighting at 100V 400Hz in a 0 ° C 95% RH humidity tank, it was found to be 9
It was 88% after 6 hours and 76% after 240 hours.
【００３２】また、金属酸化物の共蒸着に代えて、酸化
珪素とフッ化マグネシウムの共蒸着によって防湿性薄膜
２０を形成し、この下シート１６を用いたＥＬランプを
製作して同様の確認を行ったところ、輝度変化率は９６
時間後では８９％、２４０時間後では７２％であり、同
様の効果が得られた。Further, instead of the co-evaporation of the metal oxide, the moisture-proof thin film 20 is formed by the co-evaporation of silicon oxide and magnesium fluoride, and an EL lamp using this lower sheet 16 is manufactured to confirm the same. The brightness change rate is 96
89% after 72 hours and 72% after 240 hours, the same effect was obtained.
【００３３】このように本実施の形態によれば、上シー
ト１５の下面に金属箔１９をラミネートすると共に、下
シート１６の上面に金属酸化物または金属酸化物と金属
フッ化物によって防湿性薄膜２０を形成し、この上、下
シート１５，１６を用いてＥＬ素子６Ａを封止してＥＬ
ランプを構成することによって、分子構造が密な金属箔
１９と防湿性薄膜２０によって防湿性が高められるた
め、上、下シート１５，１６の厚さを薄くし、薄型化が
図れ、高輝度のＥＬランプを得ることができるものであ
る。As described above, according to this embodiment, the metal foil 19 is laminated on the lower surface of the upper sheet 15, and the moisture-proof thin film 20 is formed on the upper surface of the lower sheet 16 by the metal oxide or the metal oxide and the metal fluoride. Then, the EL element 6A is sealed by using the upper and lower sheets 15 and 16 and EL
By constructing the lamp, the moisture resistance is enhanced by the metal foil 19 having a dense molecular structure and the moisture-proof thin film 20, so that the upper and lower sheets 15 and 16 can be made thinner and thinner, and have high brightness. The EL lamp can be obtained.
【００３４】そして、上シート１５の外周を折曲し、こ
れと下シート１６外周とを接着してＥＬ素子６Ａを封止
することによって、比較的弾性のある金属箔１９がラミ
ネートされた上シート１５側が折曲され、下シート１６
側には殆ど力が加わらないため、金属酸化物や金属フッ
化物等の防湿性薄膜２０の破損を防止することができ
る。Then, the outer periphery of the upper sheet 15 is bent and the outer periphery of the lower sheet 16 is adhered to seal the EL element 6A, so that the upper sheet laminated with the relatively elastic metal foil 19 is laminated. Fifteen side is bent, lower sheet 16
Since almost no force is applied to the side, it is possible to prevent damage to the moisture-proof thin film 20 such as metal oxide or metal fluoride.
【００３５】また、上シート１５側から加圧加熱して、
上、下シート１５，１６外周を接着封止することによっ
て、上シート１５にラミネートされた金属箔１９が折曲
し易くなると共に、全体が加熱されて下シート１６の防
湿性薄膜２０にも破損が生じにくくなるため、ＥＬラン
プの製作を容易に行うことができる。Further, by heating from the upper sheet 15 side under pressure,
By adhesively sealing the outer peripheries of the upper and lower sheets 15 and 16, the metal foil 19 laminated on the upper sheet 15 is easily bent, and the whole is heated to damage the moisture-proof thin film 20 of the lower sheet 16. Is less likely to occur, the EL lamp can be easily manufactured.
【００３６】さらに、下シート１６と防湿性薄膜２０を
複数層積層したものとすれば、防湿性をさらに向上する
ことができ、例えば、二枚重ねた二層のものを用いる場
合には、防湿性薄膜２０同士を対向させて積層すれば、
より効果が高まる。Further, if the lower sheet 16 and the moisture-proof thin film 20 are laminated in a plurality of layers, the moisture-proof property can be further improved. For example, in the case of using a two-layer structure in which two sheets are stacked, the moisture-proof thin film is used. If you stack 20 facing each other,
More effective.
【００３７】なお、以上の説明では、上、下シート１５
と１６にポリエチレンテレフタレートフィルムを用いて
説明したが、これ以外の光透過性の各種絶縁フィルムを
用いても本発明の実施は可能である。In the above description, the upper and lower sheets 15
Although a polyethylene terephthalate film is used for 16 and 16, the present invention can be practiced by using various light-transmitting insulating films other than this.
【００３８】また、上シート１５の金属箔１９も、アル
ミニウム以外にも弾性を有し分子構造が密なものであれ
ばよく、同様に、上、下シートの接着層も、加熱によっ
て軟化し接着するホットメルト以外の、加熱硬化性或い
は紫外線硬化性のものでも実施は可能である。Further, the metal foil 19 of the upper sheet 15 may be one having elasticity and a dense molecular structure other than aluminum. Similarly, the adhesive layers of the upper and lower sheets are softened by heating and bonded. It is also possible to use heat curable or ultraviolet curable ones other than hot melt.
【００３９】[0039]
【発明の効果】以上のように本発明によれば、薄型化が
図れ、高輝度のＥＬランプ及びその製造方法を得ること
ができるという有利な効果が得られる。As described above, according to the present invention, it is possible to obtain an advantageous effect that it is possible to obtain an EL lamp having a thin shape and a high brightness, and a manufacturing method thereof.
【図１】本発明の一実施形態によるＥＬランプの断面図FIG. 1 is a sectional view of an EL lamp according to an embodiment of the present invention.
【図２】同分解断面図FIG. 2 is an exploded sectional view of the same.
【図３】従来のＥＬランプの断面図FIG. 3 is a sectional view of a conventional EL lamp.
【図４】同分解断面図FIG. 4 is an exploded sectional view of the same.
１ 基材 ２Ａ 光透過性電極層 ３ 発光体層 ４ 誘電体層 ５Ａ 背面電極層 ６Ａ ＥＬ素子 ７ 吸湿シート １２Ａ，１３Ａ ホットメルト接着層 １５ 上シート １６ 下シート １７，１８ 金属端子 １９ 金属箔 ２０ 防湿性薄膜 ２１ 基台 1 base material 2A Light-transmissive electrode layer 3 Luminescent layer 4 Dielectric layer 5A Back electrode layer 6A EL element 7 moisture absorption sheet 12A, 13A Hot melt adhesive layer 15 Upper sheet 16 Lower sheet 17,18 Metal terminals 19 metal foil 20 Moisture-proof thin film 21 base
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3K007 AB00 AB02 BA07 BB00 CA06 CB01 DA04 DA05 DB02 EA01 EB04 FA02 ─────────────────────────────────────────────────── ─── Continued front page F-term (reference) 3K007 AB00 AB02 BA07 BB00 CA06 CB01 DA04 DA05 DB02 EA01 EB04 FA02
Claims (4)
発光体層、背面電極層が順次重ねて形成されたＥＬ素子
と、このＥＬ素子の上下に配置され、上、下面に形成さ
れた接着層によって上記ＥＬ素子を挟んで封止する上、
下シートからなり、上記上シートの下面に金属箔をラミ
ネートすると共に、上記下シートの上面に金属酸化物ま
たは金属酸化物と金属フッ化物によって防湿性薄膜を形
成したＥＬランプ。1. An EL element in which a light-transmissive electrode layer, a light-emitting layer, and a back electrode layer are sequentially stacked on a light-transmissive base material, and the EL element is arranged above and below the EL element and is provided on the upper and lower surfaces. In addition to sandwiching and sealing the EL element with the formed adhesive layer,
An EL lamp comprising a lower sheet, wherein a metal foil is laminated on the lower surface of the upper sheet, and a moisture-proof thin film is formed on the upper surface of the lower sheet with a metal oxide or a metal oxide and a metal fluoride.
ト外周とを接着してＥＬ素子を封止した請求項１記載の
ＥＬランプ。2. The EL lamp according to claim 1, wherein the outer periphery of the upper sheet is bent and the outer periphery of the lower sheet is adhered to seal the EL element.
請求項１記載のＥＬランプ。3. The EL lamp according to claim 1, wherein a lower sheet and a moisture-proof thin film are laminated in a plurality of layers.
ね、上シート側から加圧加熱して、上、下シート外周を
接着封止する請求項１記載のＥＬランプの製造方法。4. The method of manufacturing an EL lamp according to claim 1, wherein the upper sheet, the EL element, and the lower sheet are superposed, and the upper sheet side is pressed and heated to adhesively seal the outer peripheries of the upper and lower sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001254318A JP2003068447A (en) | 2001-08-24 | 2001-08-24 | El lamp and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001254318A JP2003068447A (en) | 2001-08-24 | 2001-08-24 | El lamp and its manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003068447A true JP2003068447A (en) | 2003-03-07 |
Family
ID=19082495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001254318A Pending JP2003068447A (en) | 2001-08-24 | 2001-08-24 | El lamp and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003068447A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006087941A1 (en) * | 2005-02-17 | 2006-08-24 | Konica Minolta Holdings, Inc. | Gas-barrier film, process for producing gas-barrier film, resin base with the gas-barrier film for organic electroluminescent element, and organic electroluminescent element |
| JP2010231977A (en) * | 2009-03-26 | 2010-10-14 | Panasonic Electric Works Co Ltd | Thin sealed organic el element |
| US8486487B2 (en) | 2005-02-17 | 2013-07-16 | Konica Minolta Holdings, Inc. | Gas barrier film, gas barrier film manufacturing method, resin substrate for organic electroluminescent device using the aforesaid gas barrier film, and organic electroluminescent device using the aforementioned gas barrier film |
| CN103855316A (en) * | 2012-11-30 | 2014-06-11 | 海洋王照明科技股份有限公司 | Organic light-emitting device and preparation method thereof |
| US8759822B2 (en) | 2012-07-24 | 2014-06-24 | Samsung Display Co., Ltd. | Organic light-emitting display apparatus and method of manufacturing the same |
-
2001
- 2001-08-24 JP JP2001254318A patent/JP2003068447A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006087941A1 (en) * | 2005-02-17 | 2006-08-24 | Konica Minolta Holdings, Inc. | Gas-barrier film, process for producing gas-barrier film, resin base with the gas-barrier film for organic electroluminescent element, and organic electroluminescent element |
| US8062707B2 (en) | 2005-02-17 | 2011-11-22 | Konica Minolta Holdings, Inc. | Gas barrier film, gas barrier film manufacturing method, resin substrate for organic electroluminescent device using the aforesaid gas barrier film, and organic electroluminescent device using the aforementioned gas barrier film |
| US8486487B2 (en) | 2005-02-17 | 2013-07-16 | Konica Minolta Holdings, Inc. | Gas barrier film, gas barrier film manufacturing method, resin substrate for organic electroluminescent device using the aforesaid gas barrier film, and organic electroluminescent device using the aforementioned gas barrier film |
| JP2010231977A (en) * | 2009-03-26 | 2010-10-14 | Panasonic Electric Works Co Ltd | Thin sealed organic el element |
| US8759822B2 (en) | 2012-07-24 | 2014-06-24 | Samsung Display Co., Ltd. | Organic light-emitting display apparatus and method of manufacturing the same |
| CN103855316A (en) * | 2012-11-30 | 2014-06-11 | 海洋王照明科技股份有限公司 | Organic light-emitting device and preparation method thereof |
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