JPH03272592A - Thin film el panel - Google Patents
Thin film el panelInfo
- Publication number
- JPH03272592A JPH03272592A JP2075041A JP7504190A JPH03272592A JP H03272592 A JPH03272592 A JP H03272592A JP 2075041 A JP2075041 A JP 2075041A JP 7504190 A JP7504190 A JP 7504190A JP H03272592 A JPH03272592 A JP H03272592A
- Authority
- JP
- Japan
- Prior art keywords
- injection hole
- thin film
- cover glass
- insulating protective
- glass
- 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
- 239000010409 thin film Substances 0.000 title claims abstract description 29
- 238000002347 injection Methods 0.000 claims abstract description 41
- 239000007924 injection Substances 0.000 claims abstract description 41
- 239000012530 fluid Substances 0.000 claims abstract description 34
- 239000006059 cover glass Substances 0.000 claims abstract description 25
- 239000011521 glass Substances 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 16
- 230000001681 protective effect Effects 0.000 claims description 30
- 239000000853 adhesive Substances 0.000 abstract description 8
- 230000001070 adhesive effect Effects 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 7
- 238000000465 moulding Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000004544 sputter deposition Methods 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
- 238000007740 vapor deposition Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、ガラス基板とカバーガラスとから成る外囲器
内に、薄膜ＥＬ素子ならびにその薄膜ＥＬ素子に対する
絶縁性保護流体が封入され、各種の情報デイスプレィを
ＥＬ（電界発光〉で行なう薄膜ＥＬパネルに関し、特に
薄膜ＥＬマトリクス型デイスプレィパネルに関する。Detailed Description of the Invention (Industrial Application Field) The present invention includes a thin film EL element and an insulating protective fluid for the thin film EL element sealed in an envelope consisting of a glass substrate and a cover glass. The present invention relates to a thin film EL panel that displays information using EL (electroluminescence), and particularly relates to a thin film EL matrix type display panel.
従来の薄膜ＥＬマトリクス型デイスプレィパネルの一般
的構造を第６図を参照して説明する。なお、第６同右手
分はＸ方向の断面図、左半分はＹ方向の断面図を示す。The general structure of a conventional thin film EL matrix type display panel will be explained with reference to FIG. The sixth right-hand portion shows a sectional view in the X direction, and the left half shows a sectional view in the Y direction.
図において、１は透明なガラス基板、２はガラス基板１
上に形成されたマトリクス型の薄膜ＥＬ素子である。Ｅ
Ｌ素子２における３はガラス基板１上にＩＴＯ（酸化イ
ンジウムと酸化スズの混晶体〉を蒸着法やスパッタ法で
Ｙ方向に所定のピッチで形成されたストライブ状の透明
電極、４は透明電極３上を覆うＹ２Ｏ３等の透明な第１
絶縁層、５は第１絶縁層４上に形成されたＺｎＳ：Ｍｎ
等の発光層、６は発光層５上を覆うＹ２Ｏ３等の透明な
第２絶縁層、７は第２絶縁層６上にＸ方向に所定のピッ
チで形成されたストライプ状のＡｌ蒸着膜による背面電
極である。ＥＬ素子２の各電極３，７の一端部３ａ、７
ａは外部引出しリード（図示せず）との接続のためにガ
ラス基板１の周辺部上に延長させて形成されている。ま
た、８はガラス基板１上でＥＬ素子２を気密封止する逆
皿状のカバーガラスで、電極３．７の端部３ａ、７ａの
一部を横切る位置にエポキシ樹脂等の接着剤９でもって
気密に固着され、ガラス基板１とでＥＬ素子２を封入す
る外囲器１０を構成する。１１は外囲器１０の内部空間
に充填されたシリコンオイル等の絶縁性保護流体で、外
囲器１０の内部空間を真空引きした後、カバーガラス８
の一部に形成された注入孔１２から注入され、注入後注
入孔１２を蓋板１３で密封して封入される。この絶縁性
保護流体１１は外囲器１０内におけるＥＬ素子２の外部
湿気に対する防湿作用、ＥＬ素子２から作動時に発生す
る熱を放出する冷却作用、ＥＬ素子２の絶縁保護作用等
を効果的に発揮する品質のものが使用される。In the figure, 1 is a transparent glass substrate, 2 is a glass substrate 1
This is a matrix type thin film EL element formed on the top. E
In the L element 2, 3 is a striped transparent electrode formed on the glass substrate 1 with ITO (mixed crystal of indium oxide and tin oxide) at a predetermined pitch in the Y direction by vapor deposition or sputtering, and 4 is a transparent electrode. Transparent first layer such as Y2O3 covering 3
Insulating layer 5 is ZnS:Mn formed on first insulating layer 4
6 is a transparent second insulating layer such as Y2O3 that covers the light emitting layer 5, and 7 is a back surface made of a striped Al vapor deposited film formed at a predetermined pitch in the X direction on the second insulating layer 6. It is an electrode. One end portion 3a, 7 of each electrode 3, 7 of the EL element 2
A is formed extending over the peripheral portion of the glass substrate 1 for connection with an external lead (not shown). Reference numeral 8 denotes an inverted dish-shaped cover glass for hermetically sealing the EL element 2 on the glass substrate 1, and an adhesive 9 such as epoxy resin is applied at a position crossing a part of the ends 3a and 7a of the electrodes 3.7. The glass substrate 1 and the glass substrate 1 form an envelope 10 in which the EL element 2 is enclosed. 11 is an insulating protective fluid such as silicone oil filled in the inner space of the envelope 10, and after the inner space of the envelope 10 is evacuated, the cover glass 8 is
After injection, the injection hole 12 is sealed with a lid plate 13 and sealed. This insulating protective fluid 11 effectively performs a moisture-proofing effect on the EL element 2 in the envelope 10 against external moisture, a cooling effect to release heat generated during operation from the EL element 2, an insulation protection effect for the EL element 2, etc. Products of the highest quality are used.
上記薄膜ＥＬパネルの製造時、外囲器１０の内部空間に
絶縁性保護流体１１を注入した後、注入孔１２を密閉し
て外囲器１０を封入することは容易なことでない。即ち
、カバーガラス８の注入孔１２に絶縁性保護流体１１を
満たさないで蓋板１３でもって密閉封止すると、外囲器
１０内の絶縁性保護流体１１に気泡が混入し、特性劣化
の原因となる。そこで、気泡の混入を防止するために注
入孔１２に絶縁性保護流体１１を表面張力により外囲器
１０の内部空間の容積より少し多めに満たして蓋板１３
でもって密閉封止すると、絶縁性保護流体１１に気泡は
混入されないか、注入孔１２から絶縁性保護流体１１が
漏洩し、封止が困難になるという問題点があった。When manufacturing the thin film EL panel, it is not easy to seal the injection hole 12 and encapsulate the envelope 10 after injecting the insulating protective fluid 11 into the internal space of the envelope 10. That is, if the injection hole 12 of the cover glass 8 is not filled with the insulating protective fluid 11 and hermetically sealed with the cover plate 13, air bubbles will be mixed into the insulating protective fluid 11 in the envelope 10, causing characteristic deterioration. becomes. Therefore, in order to prevent air bubbles from entering, the insulating protective fluid 11 is filled into the injection hole 12 to a level slightly larger than the volume of the internal space of the envelope 10 due to surface tension.
If this is done, air bubbles will not be mixed into the insulating protective fluid 11, or the insulating protective fluid 11 will leak from the injection hole 12, making sealing difficult.
本発明の目的は、注入孔から絶縁性保護流体が漏洩せず
注入孔が確実に封止された薄膜ＥＬパネルを提供するこ
とである。An object of the present invention is to provide a thin film EL panel in which an insulating protective fluid does not leak from the injection hole and the injection hole is reliably sealed.
本発明の薄膜ＥＬパネルは、カバーガラスを貫通して設
けられた、絶縁性保護流体の注入孔が外側にひらいたテ
ーパーをもち、かつこの注入孔と同様の形状で、しかも
絶縁性保護流体に浮く栓が外囲器内外の差圧により注入
孔に吸着させられるとともに、この栓が基板でカバーガ
ラスに固定され注入孔が封入された構造を有する。The thin-film EL panel of the present invention has an insulating protective fluid injection hole that is provided through a cover glass and has a tapered outward opening, and has a similar shape to the insulating protective fluid. It has a structure in which a floating stopper is attracted to the injection hole by a pressure difference between the inside and outside of the envelope, and this stopper is fixed to a cover glass using a substrate and the injection hole is enclosed.
したがって、薄膜ＥＬパネルの絶縁性保護流体注入孔封
止の際、絶縁性保護流体中に気体が混入したり絶縁性保
護流体と蓋板の接着剤とが接触したりすることを避ける
ことができ、注入孔を容易かつ確実に封止することがで
きる。Therefore, when sealing the insulating protective fluid injection hole of a thin-film EL panel, it is possible to prevent gas from entering the insulating protective fluid and contact between the insulating protective fluid and the adhesive on the cover plate. , the injection hole can be easily and reliably sealed.
次に、本発明の実施例について図面を参照して説明する
。Next, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の第１の実施例の薄膜ＥＬパネルの外囲
器の要部構成を示す断面図、第２図ないし第４図は上記
薄膜ＥＬパネルの製造工程について説明するための要部
構成断面図である。FIG. 1 is a sectional view showing the main part structure of the envelope of the thin film EL panel according to the first embodiment of the present invention, and FIGS. 2 to 4 are main parts for explaining the manufacturing process of the thin film EL panel. FIG. 3 is a partial cross-sectional view.
第１図において、ガラス基板１上には、前述したと同様
に薄膜ＥＬ素子２を収納するごとく皿状のカバーガラス
８がガラス基板１上に載せられ、その内部間隙に薄膜Ｅ
Ｌ素子２が内蔵されている。カバーガラス８の凹陥成形
領域の隔部一箇所には外へひらいたテーパーを持つ絶縁
性保護流体１１注入用の注入孔２１が設けられている。In FIG. 1, a dish-shaped cover glass 8 is placed on the glass substrate 1 to house the thin film EL element 2 in the same way as described above, and a thin film E is placed on the glass substrate 1 in the internal gap.
An L element 2 is built-in. An injection hole 21 for injecting the insulating protective fluid 11 having an outwardly tapered shape is provided in one of the partitions of the concave molding region of the cover glass 8 .
この注入孔２１に注入孔２１と同様のテーパーを持つ円
錐形状の栓２２が外囲器１０内外の差圧により吸着され
ており、さらにこの栓２２の上からガラス等の蓋板２３
が被せられ接着剤２４てカバーガラス８に固着されてい
る。A conical stopper 22 with a taper similar to that of the injection hole 21 is attracted to the injection hole 21 by the differential pressure inside and outside the envelope 10, and a cover plate 22 made of glass or the like is placed over the stopper 22.
is covered and fixed to the cover glass 8 with an adhesive 24.
次に、その封止方法について説明する。Next, the sealing method will be explained.
まず、注入孔２１から絶縁性保護流体１１を注入後、カ
バーガラス８に外部から圧力２５を加え第２図のように
絶縁性保護流体１１が流れ去ってしまわない程度に外に
ひらいたテーパーを持つ注入孔２１から突出させ、第３
図のように絶縁性保護流体１１に浮きしかも注入孔２１
と同様のテーパーをもつ円錐形状の栓２２を絶縁性保護
流体１１があふれださないようにカバーガラス８への外
部からの圧力２５を弱めながら絶縁性保護流体１１に浮
かべ、その後カバーガラス８への圧力２５を取り除くと
、第４図で示すように、円錐形状の栓２２は外囲器１０
内の負圧により注入孔２１に吸着される。この後、さら
に円錐形状の栓２２を固定するため蓋板２３をカバーガ
ラス８に接着剤２４でもって接着する。First, after injecting the insulating protective fluid 11 through the injection hole 21, pressure 25 is applied to the cover glass 8 from the outside to create a taper that opens outward to the extent that the insulating protective fluid 11 does not flow away, as shown in FIG. The third
As shown in the figure, it floats on the insulating protective fluid 11 and the injection hole 21.
A conical plug 22 with a similar taper is floated in the insulating protective fluid 11 while weakening the external pressure 25 on the cover glass 8 to prevent the insulating protective fluid 11 from overflowing, and then placed on the cover glass 8. When the pressure 25 is removed, the conical plug 22 is removed from the envelope 10, as shown in FIG.
It is adsorbed to the injection hole 21 by the negative pressure inside. Thereafter, in order to further fix the conical stopper 22, the cover plate 23 is bonded to the cover glass 8 with an adhesive 24.
第５図は本発明の第２の実施例の薄膜ＥＬパネルの外囲
器の要部構成を示す断面図である。FIG. 5 is a cross-sectional view showing the main structure of an envelope of a thin film EL panel according to a second embodiment of the present invention.
本実施例は第１の実施例と同様にガラス基板１とカバー
ガラス８で外囲器１が構成され、内部に薄膜ＥＬ素子２
とこの薄膜ＥＬ素子２の絶縁性保護流体１１が封入され
ており、カバーガラス８には外へひらいたテーパーを持
つ絶縁性保護流体１工注入用の注入孔２１が設けられて
いるが、この注入孔２１の周囲に後で固着する蓋板２３
の厚さに相当する深さ分だけくぼんだ凹部２６が形成さ
れており、蓋板２３接着後カバーガラス面が全くフラッ
トとなる利点がある。なお、注入孔２１は角錐でもよい
。In this embodiment, as in the first embodiment, an envelope 1 is constructed of a glass substrate 1 and a cover glass 8, and a thin film EL element 2 is contained inside.
The insulating protective fluid 11 for the thin film EL element 2 is sealed in the cover glass 8, and an injection hole 21 for injecting the insulating protective fluid 1 is provided in the cover glass 8 with an outward taper. A cover plate 23 that is later fixed around the injection hole 21
A concave portion 26 is formed to have a depth corresponding to the thickness of the cover glass, which has the advantage that the surface of the cover glass becomes completely flat after the cover plate 23 is bonded. Note that the injection hole 21 may be pyramid-shaped.
〔発明の効果）
以上説明したように本発明は、注入孔が外側にひらいた
テーパーを持ち、この注入孔と同様の形状の栓を外囲器
内外の差圧で注入孔に吸着させ、その後蓋板で注入孔を
封止することにより、薄膜ＥＬパネルの絶縁性保護流体
注入孔封止の際、絶縁性保護流体中に気体が混入したり
絶縁性保護流体と蓋板の接着剤とが接触したりすること
を避けることができ、注入孔を容易かつ確実に封止する
ことができる効果がある。[Effects of the Invention] As explained above, in the present invention, the injection hole has an outwardly tapered taper, and a plug having the same shape as the injection hole is adsorbed to the injection hole by the pressure difference between the inside and outside of the envelope. By sealing the injection hole with the lid plate, when sealing the insulating protective fluid injection hole of a thin film EL panel, there is no possibility that gas will get mixed into the insulating protective fluid or that the insulating protective fluid and the adhesive on the lid plate will mix. This has the effect that contact can be avoided and the injection hole can be easily and reliably sealed.
第１図は本発明の第１の実施例の薄膜ＥＬパネルの外囲
器の要部構成を示す断面図、第２図ないし第４図は上記
薄膜ＥＬパネルの製造工程について説明するための要部
構成断面図、第５図は本発明の第２の実施例の薄膜ＥＬ
パネルの外囲器の要部構成を示す断面図、第６図は従来
の薄膜ＥＬパネルの断面図である。
１−−−−−・−・ガラス基板、 ２−−−−−−−−
・薄膜ＥＬ素子３−−−−−−−−−透明電極、
４−−−−−−−−・第１絶縁層。
Ｓ −−−−−−−−−発光層、 ６・・・・・
・・・・第２絶縁層、７−−−−−−−−−
９ 、２４−−−−−・接着剤、 １０−・・・・
・・・・外囲器、１１・・・・・・・・・絶縁性保護流
体、１２、２１−・・注入孔、 １３．２３・・・
蓋板、２２−−−−−・・・・栓、 ２５−−
−−−・・・・カバーガラス２６・・・・・・・・・凹
部。FIG. 1 is a sectional view showing the main part structure of the envelope of the thin film EL panel according to the first embodiment of the present invention, and FIGS. 2 to 4 are main parts for explaining the manufacturing process of the thin film EL panel. FIG. 5 is a cross-sectional view of a partial structure of a thin film EL according to a second embodiment of the present invention.
FIG. 6 is a cross-sectional view of a conventional thin film EL panel. 1---------・Glass substrate, 2------------
・Thin film EL element 3-----Transparent electrode,
4----------First insulating layer. S ----------Light-emitting layer, 6...
...Second insulating layer, 7--------- 9, 24--Adhesive, 10-...
...Envelope, 11...Insulating protective fluid, 12, 21-...Injection hole, 13.23...
Lid plate, 22------... Stopper, 25---
---...Cover glass 26...Concavity.
Claims (1)
薄膜ＥＬ素子ならびにその薄膜ＥＬ素子に対する絶縁性
保護流体が封入された薄膜ＥＬパネルにおいて、 前記カバーガラスを貫通して設けられた、前記絶縁性保
護流体の注入孔が外側にひらいたテーパーをもち、かつ
この注入孔と同様の形状で、しかも絶縁性保護流体に浮
く栓が外囲器内外の差圧により注入孔に吸着させられる
とともに、この栓が基板でカバーガラスに固定され注入
孔が封入された構造を有することを特徴とする薄膜ＥＬ
パネル。1. Inside the envelope consisting of a glass substrate and a cover glass,
In a thin film EL panel in which a thin film EL element and an insulating protective fluid for the thin film EL element are sealed, an injection hole for the insulating protective fluid provided through the cover glass has an outwardly tapered taper; In addition, a plug that has the same shape as this injection hole and floats in the insulating protective fluid is attracted to the injection hole by the differential pressure inside and outside the envelope, and this plug is fixed to the cover glass using a substrate and the injection hole is sealed. A thin film EL characterized by having a structure
panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2075041A JPH03272592A (en) | 1990-03-22 | 1990-03-22 | Thin film el panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2075041A JPH03272592A (en) | 1990-03-22 | 1990-03-22 | Thin film el panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03272592A true JPH03272592A (en) | 1991-12-04 |
Family
ID=13564730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2075041A Pending JPH03272592A (en) | 1990-03-22 | 1990-03-22 | Thin film el panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03272592A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0676947A (en) * | 1992-08-31 | 1994-03-18 | Sharp Corp | Sealing structure for thin film el display device |
| US7728425B2 (en) * | 2005-06-21 | 2010-06-01 | Hewlett-Packard Development Company, L.P. | Seal of fluid port |
-
1990
- 1990-03-22 JP JP2075041A patent/JPH03272592A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0676947A (en) * | 1992-08-31 | 1994-03-18 | Sharp Corp | Sealing structure for thin film el display device |
| US7728425B2 (en) * | 2005-06-21 | 2010-06-01 | Hewlett-Packard Development Company, L.P. | Seal of fluid port |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI389271B (en) | Package of environmental sensitive element and packaging method using the same | |
| WO2019085484A1 (en) | Flexible display module and preparation method therefor | |
| WO2018214962A1 (en) | Package structure of organic light emitting diode display panel and manufacturing method thereof, and display device | |
| US7554264B2 (en) | Flat panel display including at least one substrate having a groove | |
| KR100643891B1 (en) | Organic light emitting device panel having encapsulation cap | |
| WO2016086537A1 (en) | Oled packaging structure and packaging method therefor | |
| US20050014022A1 (en) | Encapsulated organic electroluminescent display | |
| US9947891B2 (en) | OLED packaging method and OLED packaging structure | |
| WO2016101403A1 (en) | Organic light-emitting diode packaging structure and packaging method | |
| CN107565050A (en) | Organic light-emitting diode packaging structure, electronic installation and method for packing | |
| CN110824785A (en) | Display panel and display device | |
| US4839557A (en) | Fill member for electroluminescent panels | |
| JPH03272592A (en) | Thin film el panel | |
| JP4059826B2 (en) | Color filter substrate and liquid crystal panel using the same | |
| KR20070051650A (en) | Organic light emitting diode panel | |
| JPS5944633B2 (en) | Thin film EL panel | |
| JPH0471190A (en) | Thin film type el panel | |
| CN111653686A (en) | Display panel, preparation method thereof and display device | |
| TWI709795B (en) | System frame sealing structure and display device including the same | |
| TWI844672B (en) | Optical device | |
| JPS6235495A (en) | Thin film el panel | |
| TWI718930B (en) | Electronic paper package structure | |
| KR100641023B1 (en) | Organic light emitting device panel | |
| KR100746983B1 (en) | Organic light emitting diode panel | |
| JP2005148083A (en) | Display device having liquid crystal panel |