JPS62170187A - Light emitting device - Google Patents
Light emitting deviceInfo
- Publication number
- JPS62170187A JPS62170187A JP61010599A JP1059986A JPS62170187A JP S62170187 A JPS62170187 A JP S62170187A JP 61010599 A JP61010599 A JP 61010599A JP 1059986 A JP1059986 A JP 1059986A JP S62170187 A JPS62170187 A JP S62170187A
- Authority
- JP
- Japan
- Prior art keywords
- water
- layer
- film
- sealing material
- nylon
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 150000004706 metal oxides Chemical class 0.000 claims description 10
- 239000004677 Nylon Substances 0.000 claims description 9
- 229910044991 metal oxide Inorganic materials 0.000 claims description 9
- 229920001778 nylon Polymers 0.000 claims description 9
- 229920000298 Cellophane Polymers 0.000 claims description 6
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 6
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 6
- 238000004544 sputter deposition Methods 0.000 claims description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims 1
- 239000003566 sealing material Substances 0.000 description 22
- 238000005401 electroluminescence Methods 0.000 description 17
- 239000000853 adhesive Substances 0.000 description 11
- 230000001070 adhesive effect Effects 0.000 description 11
- 229920003145 methacrylic acid copolymer Polymers 0.000 description 4
- 229940117841 methacrylic acid copolymer Drugs 0.000 description 4
- 229920006284 nylon film Polymers 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 238000007740 vapor deposition Methods 0.000 description 3
- MIZLGWKEZAPEFJ-UHFFFAOYSA-N 1,1,2-trifluoroethene Chemical group FC=C(F)F MIZLGWKEZAPEFJ-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229920001986 Vinylidene chloride-vinyl chloride copolymer Polymers 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 1
- 229920005648 ethylene methacrylic acid copolymer Polymers 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical group O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Landscapes
- Electroluminescent Light Sources (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はエレクトロルミネッセンス（ＥＬ ＞素子等の
発光素子に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a light emitting device such as an electroluminescence (EL) device.
（従来の技術）
従来、ＥＬう／プ（電界発光照明）については、ヤ
その光が弱い、また、湿気■紫外線に影響されやすい、
色が変化する、などの理由により、その効果的使用は制
限されていた。(Prior art) Conventionally, EL lighting (electroluminescent lighting) has a weak light and is easily affected by moisture and ultraviolet rays.
Its effective use has been limited due to reasons such as color change.
ところが、ここ数年間ＥＬう／プの製造については、数
々の改良がなされ、強い光で寿命が長く、湿気による退
化を防ぐためにマイクロカプセルに封入するなどその使
用の範囲が広がり、それに対応してＥＬう／プの封止材
料等の開発も盛んに行なわれてきた。However, over the past few years, a number of improvements have been made in the production of EL tape, and the range of its use has expanded, such as longer life under strong light and encapsulation in microcapsules to prevent deterioration due to moisture. There has also been active development of sealing materials for EL cells.
封止材料については、軽量化、低コスト化指向によ
洩りプラスチック材料が求められている。その要求性能
については、光線透過率、防湿性、捕水層との接着性が
あげられる。As for sealing materials, leaky plastic materials are in demand due to the trend toward weight reduction and cost reduction. The required performances include light transmittance, moisture resistance, and adhesion to the water-trapping layer.
捕水層としては、現在、一般的に吸湿性を有するる一ナ
イロンを使用している。Currently, hygroscopic nylon is generally used as the water trapping layer.
また、封止材料としては、非常に透明性が高く、水蒸気
透過度の低いプラスチックフィルムとして、ポリ塩化三
フッ化エチレンが選ばれており、捕水層との接着性を付
与するために、エチＶンーメタクリル酸共重合樹脂等を
積層させ、ＥＬランプの封止材料としている。In addition, polychlorinated trifluoroethylene was selected as the sealing material as it is a plastic film with very high transparency and low water vapor permeability. V-methacrylic acid copolymer resin and the like are laminated to form a sealing material for an EL lamp.
（発明が解決しようとする問題点）
このポリ塩化三フフ化エチレンフィルムは、非常に水蒸
気透過度が低く、現在、０，１ ｇ／ｍ’・２４ｈ程度
のものが用いられているが、その程度の水蒸気透過度で
あっても水蒸気（水分）はＥＬ素子を劣化させるため、
封止材料の内側には、水分を補足する捕水層として、６
−ナイロンフィルムラ用イている。(Problems to be Solved by the Invention) This polychlorinated trifufluoride ethylene film has a very low water vapor permeability, and currently used is one of about 0.1 g/m'・24h; Even if the water vapor permeability is moderate, water vapor (moisture) deteriorates the EL element, so
Inside the sealing material, there is a 6-layer water trapping layer that captures moisture.
- For use with nylon film.
その場合、現在の欠点として次のものがあげられる。In that case, current drawbacks include:
１）吸湿によって６−ナイロンフィルムが膨潤し封止材
料との接着性が低下する。1) The 6-nylon film swells due to moisture absorption, reducing its adhesion to the sealing material.
２）封止材料は、６−ナイロンとの接着性を考慮してい
る為、捕水層がナイロン以外の吸湿性を有するフィルム
には使用不適である。2) Since the sealing material takes into consideration the adhesion with 6-nylon, it is not suitable for use with films whose water-absorbing layer has hygroscopic properties other than nylon.
３）封止材料と捕水層の接着性が低下した場合、ＥＬう
／プの折り曲げ等により、気泡が入り発光が散乱する。3) If the adhesion between the sealing material and the water-trapping layer decreases, air bubbles will be generated due to bending of the EL film and the emitted light will be scattered.
現在のＨＬランプには、以上の様な欠点があり、本発明
は捕水層として、６−ナイロンを含め他の吸湿性フィル
ムを用いても封止材料との強固な接着性を得る事を目的
としたものである。Current HL lamps have the above-mentioned drawbacks, and the present invention provides a method to obtain strong adhesion to the sealing material even when other hygroscopic films including 6-nylon are used as the water-trapping layer. This is the purpose.
（問題点を解決するための手段）
この目的を達成するため、本発明は、現在、捕水層とし
て用いられている６−ナイロンフィルムを含め、他の吸
湿性フィルム即ちセロファン、エチレン酢酸ビニル共重
合体ケン化物等の表面に、５０Ａ以下の金属または金属
酸化物不連続層をスパッタリングまたは蒸着形成した捕
水層を用い、その金属の投錨効果により強固なる接着性
を得るものである。(Means for Solving the Problems) To achieve this objective, the present invention proposes to use other hygroscopic films such as cellophane, ethylene vinyl acetate, etc., including the 6-nylon film currently used as a water-absorbing layer. A water-trapping layer in which a metal or metal oxide discontinuous layer of 50A or less is formed by sputtering or vapor deposition on the surface of a saponified polymer or the like is used to obtain strong adhesion due to the anchoring effect of the metal.
（実施例の説明） 以下、図面を参照して本発明を説明する。(Explanation of Examples) The present invention will be described below with reference to the drawings.
図面は本発明の実施例を示し、第１図は発光素子の例で
あるＥＬランプの断面図、第２図は捕水層の断面図であ
る。The drawings show embodiments of the present invention; FIG. 1 is a sectional view of an EL lamp, which is an example of a light emitting element, and FIG. 2 is a sectional view of a water-trapping layer.
即ち、第１図に示す様にｇＬランプは背面電極（６）上
に絶縁層（５）、その上にＥＬの発光層（４）、さらに
その上部に透明導電層（３）、捕水層（２）に設けたも
のから成り、それ全体を高光線透過性、高防湿性を有す
る積層フィルムから成る封止材料（１）により封止した
発光体である。That is, as shown in Figure 1, the gL lamp has an insulating layer (5) on the back electrode (6), an EL light emitting layer (4) on top of that, and a transparent conductive layer (3) and a water-trapping layer on top of that. (2), and the entire body is sealed with a sealing material (1) consisting of a laminated film having high light transmittance and high moisture resistance.
ここで封止材料（１）はポリ塩化三フフ化工チＶンや塩
化ビニリデン８０％の塩化ビニリデン−塩化ビニル共重
合体等の水蒸気透過度の低い透明フィルムを含む単体又
は積層体の内面に接着性樹脂を塗工したもので、接着性
樹脂としてはエチレン−メタクリル酸共重合体の外、エ
チレン−アクリル酸共重合体、無水マレイン酸による変
性ポリエチレン等が使用できる。Here, the sealing material (1) is adhered to the inner surface of a single body or a laminate containing a transparent film with low water vapor permeability, such as polychlorinated trifufluoroethylene or vinylidene chloride-vinyl chloride copolymer containing 80% vinylidene chloride. As the adhesive resin, in addition to ethylene-methacrylic acid copolymer, ethylene-acrylic acid copolymer, polyethylene modified with maleic anhydride, etc. can be used.
第２図は捕水層（２）の断面図であり、吸湿性フィルム
（２Ｉ）の上に、金属または金属酸化物を５０Ａ以下の
厚さで、スパッタリングまたは蒸着形成した不連続膜（
２２１である。まず、この吸湿性フィルム（２０につい
て説明すると、従来から使用されている６−ナイロン、
また、本発明で使用されるセロファン、エチレン酢酸ビ
ニル共重合体ケン化物、ポリビニルアルコール等である
。即ち、このフィルムは、封止材料（１）を透過してき
た水蒸気（水分）を捕水し、ＥＬ発光体の劣化を防ぐも
のである。Figure 2 is a cross-sectional view of the water-absorbing layer (2), in which a discontinuous film (2I) of a metal or metal oxide with a thickness of 50A or less is formed by sputtering or vapor deposition on the hygroscopic film (2I).
It is 221. First, to explain about this hygroscopic film (20), the conventionally used 6-nylon,
Also used in the present invention are cellophane, saponified ethylene vinyl acetate copolymer, polyvinyl alcohol, and the like. That is, this film captures water vapor (moisture) that has passed through the sealing material (1) and prevents deterioration of the EL light emitter.
次に、との捕水層として使用される吸湿性フィルム（２
１）に設けられる金属または金属酸化物の不連続層（２
２１について説明する。Next, a hygroscopic film (2
1) discontinuous layer of metal or metal oxide (2)
21 will be explained.
ここで金属または金属酸化物の層（２２を５０Ａ以下に
限るのは、５０Ａ以下のスパッタリング又は蒸は
着層Ｏ不連続な皮膜となり、封止材料（１）に重ねて熱
プレスする際、その不連続皮膜の投錨効果により、物理
的にも強固な接着力を得るためである。Here, the metal or metal oxide layer (22) is limited to 50A or less because sputtering or vaporization at 50A or less will result in a discontinuous film, and when hot-pressing the layer over the sealing material (1), This is to obtain physically strong adhesive force due to the anchoring effect of the discontinuous film.
また、この層四の厚さが５０Ａ以下の場合金属であって
も 透明であり、１０Ｘから３ＯＡの厚さが最適である
。Further, if the thickness of this layer 4 is 50A or less, it is transparent even if it is made of metal, and a thickness of 10X to 3OA is optimal.
なお、捕水層である各種吸湿性フィルムＣＤ上に上述の
スパッタリング又は蒸着層（２のを設けたその膜厚と、
封止材料（１）の最内層であるエチＶンーメタクリル酸
共重合樹脂とのヒートシール強度の関係を、第６図に示
す。In addition, the film thickness of the above-mentioned sputtering or vapor deposition layer (2) provided on various hygroscopic films CD, which are water-trapping layers,
FIG. 6 shows the relationship between the heat seal strength and the innermost layer of the sealing material (1), which is the ethyl V-methacrylic acid copolymer resin.
次にここで使用される金属または金属酸化物について説
明する。金属としては、アレ ニウム、ニッケル、クロ
ム、チタン、ステンレス、スズ、ジルコニウム、マグネ
シウム、ケイ素等であり、金属酸化物としては酸化マグ
ネシウム、酸化アルミニウム、酸化チタン、酸化スズ、
酸化ジルコニウム、二酸化ケイ素、−酸化ケイ素等の金
属酸化物があげられ、また、これらの混合物が使用でき
る。Next, the metal or metal oxide used here will be explained. Metals include arenium, nickel, chromium, titanium, stainless steel, tin, zirconium, magnesium, silicon, etc.; metal oxides include magnesium oxide, aluminum oxide, titanium oxide, tin oxide,
Examples include metal oxides such as zirconium oxide, silicon dioxide, and silicon oxide, and mixtures thereof can also be used.
いずれの金属または金属酸化物を使用する場合において
も、膜厚が５０Ｘ以下であるため、透明性が高（、発光
を阻害するものではない。No matter which metal or metal oxide is used, since the film thickness is 50X or less, transparency is high (and does not inhibit light emission).
（試験例）
厚さ２５μの６−ナイロン、セロファン、エチレン酢酸
ビニル共重合体ケン化物、ポリビニルアルコールフィル
ムに、アルミニウムをスパッタリングにより４０Ｘの厚
さに蒸着形成した。(Test Example) Aluminum was vapor-deposited to a thickness of 40X by sputtering on a film of 6-nylon, cellophane, saponified ethylene-vinyl acetate copolymer, and polyvinyl alcohol having a thickness of 25μ.
なお、封止材料としては、ポリ塩化三フッ化エチレンフ
ィルムの片面（内面）に害チレノーメタクリル酸共重合
体を塗工したフ４）レムを用いた。As the sealing material, 4) Rem, which is a polychlorinated trifluoroethylene film coated on one side (inner surface) with a tyrene-methacrylic acid copolymer, was used.
本試験例では”×４０％サイズのＥＬクランプ作成した
ため、上述の捕水層となるフイ）レムも、３０Ｘ４０％
サイズにカットし、第１図に示めす様に透明導電層（３
）の上にアルミニウム蒸着層が上になる様に重ね、封止
材料を被覆し、１６０℃で、シールした。In this test example, the EL clamp was created with a size of 30x40%, so the size of the above-mentioned water trapping layer was also 30x40%.
Cut the transparent conductive layer (3
) with the aluminum vapor deposited layer on top, covered with a sealing material, and sealed at 160°C.
シール後、ＥＬクランプ分解し、捕水層と封止材料との
接着強度を測定したところ、いずれも捕水層の材質破壊
を示し、測定不可能なほど大きな装着力を持っていた。After sealing, the EL clamp was disassembled and the adhesive strength between the water-trapping layer and the sealing material was measured. In both cases, the material of the water-trapping layer was destroyed, and the mounting force was so large that it was impossible to measure.
さらに、封止したＥＬクランプ、６０°Ｇ−９０％Ｂ、
−Ｈの雰囲気下に約２ケ月保存し、保存後の捕水層と封
止材料との接着強度を同様に測定したところ、捕水層は
吸湿によりや匁膨潤していたが、接着強度は、初期と同
様に非常に高く、いずれも材質破壊を示した。Furthermore, sealed EL clamp, 60°G-90%B,
-H atmosphere for about 2 months, and the adhesive strength between the water-trapping layer and the sealing material was measured in the same way after storage. Although the water-trapping layer had swelled a little due to moisture absorption, the adhesive strength was , which was very high as in the initial stage, and both showed material failure.
なお、接着強度測定は、インストロ／型引張試験機を用
い、引張スピード３００ ｍｍ／ｍ ｉ ｎで行なった
。The adhesive strength was measured using an Instro/type tensile tester at a tensile speed of 300 mm/min.
試験片は１５朋巾にカントして試験に供した。The test piece was canted to a width of 15 mm and was subjected to the test.
（比較例）
本発明の比較例としては、６−ナイロン、セロファン、
エチレン酢酸ビニル共重合体ケン化物。(Comparative example) As a comparative example of the present invention, 6-nylon, cellophane,
Saponified ethylene vinyl acetate copolymer.
ポリビニルアルコールフィルムを捕水層として用いた。A polyvinyl alcohol film was used as the water trapping layer.
本発明の試験例と同様にＥＬラングを作成した。An EL rung was created in the same manner as the test example of the present invention.
七の結果、封止材料最内層としての二チＶンーメタクリ
ル酸共重合樹脂と良好な接着を示したものは、６−ナイ
ロンのみであり、接着強度＆’！、１０００〜１５００
９７１５ｍｍを示した。 なお、セロファンフィルムは
全く接゛着せず、エチレン酢酸ビニル共重合体ケン化物
、ポリビニルアルコールフィルムを用いた捕水層と封止
材料とは、１００．ｊ９／１５ｘｉ以下の接着強度であ
った。As a result of Section 7, only 6-nylon showed good adhesion to the innermost layer of the sealing material, 6-nylon-methacrylic acid copolymer resin, and the adhesive strength &'! , 1000-1500
It showed 9715mm. Note that the cellophane film was not bonded at all, and the water-trapping layer and sealing material using saponified ethylene-vinyl acetate copolymer and polyvinyl alcohol film were 100. The adhesive strength was less than j9/15xi.
また、６０°Ｃ〜９０％１４−Ｈ雰囲気下における保存
テストでは、保存２ケ月後において同様に接着強度を測
定したところ、６−ナイロンフィルムを用いた捕水層と
封止材料の接着強度は、６００〜４００ｇ／１５朋であ
り、ＥＬクランプ折り曲げる事により、接着の低ドした
ところから、気泡が入り発光を阻害した。In addition, in a storage test under an atmosphere of 60°C to 90% 14-H, the adhesive strength was similarly measured after 2 months of storage, and the adhesive strength between the water-trapping layer and the sealing material using a 6-nylon film was , 600 to 400 g/15 mm, and by bending the EL clamp, air bubbles entered where the adhesion was low, inhibiting light emission.
（発明の効果）
以上のように、本発明によれば、封止材料と捕水層との
接着強度に優れ、長期保存後においても性能の低下しな
い発光素子を得る事が出来る。(Effects of the Invention) As described above, according to the present invention, it is possible to obtain a light-emitting element which has excellent adhesive strength between the sealing material and the water-trapping layer and whose performance does not deteriorate even after long-term storage.
図面は本発明の実施例を示し、第１図はＥＬクランプ断
面図、第２図は捕水層の断面図、第３図は、封止材料と
捕水層に設けた蒸着膜厚との接着強度における相関のグ
ラフである。The drawings show embodiments of the present invention; FIG. 1 is a cross-sectional view of the EL clamp, FIG. 2 is a cross-sectional view of the water-trapping layer, and FIG. It is a graph of correlation in adhesive strength.
Claims (2)
（オングストローム）以下の金属または金属酸化物不連
続層が、スパッタリングまたは蒸着形成された捕水層を
用いる事を特徴とする発光素子。(1) 50A on the surface of the hygroscopic film as a water absorption layer
1. A light-emitting device characterized in that a water-trapping layer is formed by sputtering or evaporating a discontinuous layer of metal or metal oxide having a thickness of (Angstrom) or less.
チレン酢酸ビニル共重合体ケン化物又はポリビニルアル
コールである事を特徴とする特許請求の範囲第（１）項
記載の発光素子。(2) The light emitting device according to claim (1), wherein the hygroscopic film is a saponified nylon/cellophane/ethylene vinyl acetate copolymer or polyvinyl alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61010599A JPS62170187A (en) | 1986-01-21 | 1986-01-21 | Light emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61010599A JPS62170187A (en) | 1986-01-21 | 1986-01-21 | Light emitting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62170187A true JPS62170187A (en) | 1987-07-27 |
| JPH0325915B2 JPH0325915B2 (en) | 1991-04-09 |
Family
ID=11754707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61010599A Granted JPS62170187A (en) | 1986-01-21 | 1986-01-21 | Light emitting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62170187A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02141994U (en) * | 1989-05-02 | 1990-11-30 | ||
| JPH0374498U (en) * | 1989-11-21 | 1991-07-26 | ||
| JPH0466094U (en) * | 1990-10-17 | 1992-06-10 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57165994A (en) * | 1981-04-03 | 1982-10-13 | Alps Electric Co Ltd | Electric field light emitting element |
-
1986
- 1986-01-21 JP JP61010599A patent/JPS62170187A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57165994A (en) * | 1981-04-03 | 1982-10-13 | Alps Electric Co Ltd | Electric field light emitting element |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02141994U (en) * | 1989-05-02 | 1990-11-30 | ||
| JPH0374498U (en) * | 1989-11-21 | 1991-07-26 | ||
| JPH0466094U (en) * | 1990-10-17 | 1992-06-10 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0325915B2 (en) | 1991-04-09 |
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