JPH0334289A - Membranous el display panel - Google Patents
Membranous el display panelInfo
- Publication number
- JPH0334289A JPH0334289A JP1169522A JP16952289A JPH0334289A JP H0334289 A JPH0334289 A JP H0334289A JP 1169522 A JP1169522 A JP 1169522A JP 16952289 A JP16952289 A JP 16952289A JP H0334289 A JPH0334289 A JP H0334289A
- Authority
- JP
- Japan
- Prior art keywords
- thin film
- glass substrate
- glass base
- back electrode
- 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
- 239000011521 glass Substances 0.000 claims abstract description 31
- 239000006059 cover glass Substances 0.000 claims abstract description 11
- 239000010409 thin film Substances 0.000 claims description 27
- 239000000758 substrate Substances 0.000 claims description 23
- 239000000853 adhesive Substances 0.000 abstract description 5
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 239000011159 matrix material Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 239000002985 plastic film Substances 0.000 description 3
- 229920006255 plastic film Polymers 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 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
- 229920000647 polyepoxide Polymers 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
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〕
本発明は薄膜ELディスプレイパネルに関し、特に各種
情報のデイスプレィを行うマトリックス型薄膜ELディ
スプレイパネルに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a thin film EL display panel, and more particularly to a matrix type thin film EL display panel for displaying various information.
マトリックス型薄膜ELディスプレイパネルは、ガラス
パッケージ構造のものが一般的である。その構造例を第
4図(a>、(b)及び第5図(a)、(b)を参照し
ながら説明する。Matrix type thin film EL display panels generally have a glass package structure. An example of its structure will be described with reference to FIGS. 4(a>, (b)) and FIGS. 5(a), (b).
なお、第4図(a)はX方向の断面図、第4図(b)は
X方向と直交するY方向の断面図を示す。Note that FIG. 4(a) is a sectional view in the X direction, and FIG. 4(b) is a sectional view in the Y direction orthogonal to the X direction.
第4図(a)、(b)において、1は透光性を有するガ
ラス基板、2はガラス基板1上に形成されたマトリック
ス型の薄膜EL素子である。薄膜EL素子2において、
3はガラス基板1の上に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X方向に沿って
所定のピッチで形成した多数のストライプ状の透明電極
、4は透明電極3上を覆うY2O3等の透明な第1の誘
電体層、5は第1の誘電体層4上に積層形成したXnS
:Mn等の発光層、6は発光N5上を覆うY2O・3等
の透明な第2の誘電体層、7は第2の誘電体M6にY方
向に沿って所定ピッチで多数のストライプ状に形成した
Aff蒸着膜による背面電極である。In FIGS. 4(a) and 4(b), reference numeral 1 indicates a light-transmitting glass substrate, and reference numeral 2 indicates a matrix type thin film EL element formed on the glass substrate 1. In FIG. In the thin film EL element 2,
3 is a large number of striped transparent electrodes formed by forming ITO (a mixed crystal of indium oxide and tin oxide) along the X direction at a predetermined pitch on a glass substrate 1 by vapor deposition or sputtering; 4 is a transparent electrode 3; A transparent first dielectric layer such as Y2O3 covering the top, and 5 a layer of XnS laminated on the first dielectric layer 4.
: A light emitting layer such as Mn, 6 a transparent second dielectric layer such as Y2O.3 covering the light emitting layer N5, and 7 a plurality of stripes formed on the second dielectric M6 at a predetermined pitch along the Y direction. This is the back electrode formed by the Aff vapor deposited film.
8はガラス基板1上にエポキシ樹脂等の接着剤9を介し
て固着されて薄膜EL素子2を気密封止する逆皿状のカ
バーガラスで、ガラス基板1と共に薄膜EL素子2を封
止する外囲器10を構成する。11は薄膜EL素子2の
耐湿性を向上させるため、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、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
入した後、注入孔12は蓋板13で密閉される。8 is an inverted dish-shaped cover glass that is fixed onto the glass substrate 1 via an adhesive 9 such as epoxy resin to hermetically seal the thin film EL element 2; The enclosure 10 is configured. In order to improve the moisture resistance of the thin film EL element 2, 11 is an insulating protective fluid such as silicone oil filled in the internal space of the envelope 10, and is injected through an injection hole 12 formed in a part of the cover glass 8. After injection, the injection hole 12 is sealed with a lid plate 13.
ところで、透明型i3と背面電極7の各一端部は、ガラ
ス基板1の周辺部に延設されて、各々の延設端部はガラ
ス基板1の周辺部上に形成された端子部14.15に重
畳接続される。そしてX方向に沿って配設された透明電
極3側の端子部14は、透明を極3の延設端部上に重畳
して形成され、一方、Y方向に沿って配設された背面電
極7の側の端子部15上には背面電極7の延設端部が重
畳して形成される。16は薄膜EL素子2の電極外部引
出し用のフレキシブルリードで、プラスチックフィルム
17に銅箔等の外部リード18を多数被着形成したもの
であり、外囲器10から露出する多数の端子部14.1
5上に対応する外部リード18の端部がはんだによって
電気的及び機械的に接続される。By the way, one end of each of the transparent mold i3 and the back electrode 7 is extended to the periphery of the glass substrate 1, and each extended end is connected to a terminal part 14, 15 formed on the periphery of the glass substrate 1. is connected in a superimposed manner. The terminal portion 14 on the side of the transparent electrode 3 disposed along the X direction is formed by overlapping the transparent electrode on the extended end of the pole 3, while the back electrode disposed along the Y direction On the terminal portion 15 on the side 7, an extended end portion of the back electrode 7 is formed to overlap. Reference numeral 16 denotes a flexible lead for externally extending the electrodes of the thin film EL element 2, which is made by adhering a large number of external leads 18 such as copper foil to a plastic film 17, and has a large number of terminal portions 14 exposed from the envelope 10. 1
The corresponding ends of the external leads 18 on the external leads 5 are electrically and mechanically connected by solder.
上述した従来の薄膜EL素子2の周縁部では、カバーガ
ラス8をガラス基板1に固着する接着剤9の収縮力やカ
バーガラス8のそり等により、第6図に示すように、背
面電極7がh部で切断され、薄膜EL素子2への通電が
不能となり、信頼性も大幅に低下するという問題点があ
った。At the periphery of the conventional thin film EL element 2 described above, the back electrode 7 is bent as shown in FIG. There was a problem in that the thin film EL element 2 was cut at the h portion, making it impossible to conduct electricity to the thin film EL element 2 and significantly reducing reliability.
本発明の目的は、背面電極が切断して薄膜EL素子への
通電が不能となることのない、信頼性の高い薄膜ELデ
ィスプレイパネルを提供することにある。An object of the present invention is to provide a highly reliable thin film EL display panel in which the back electrode is not cut and electricity cannot be supplied to the thin film EL element.
本発明は、ガラス基板とカバーガラスとを接着してなる
外囲器内に薄膜EL素子を封入した薄膜ELディスプレ
イパネルにおいて、ガラス基板の外周部分に外部端子取
り出し用導電端子が埋めこまれていることを特徴とする
。The present invention provides a thin-film EL display panel in which a thin-film EL element is enclosed in an envelope formed by bonding a glass substrate and a cover glass, in which conductive terminals for taking out external terminals are embedded in the outer periphery of the glass substrate. It is characterized by
次に、本発明について図面を参照して説明する。第1図
(a)、(b)はそれぞれ本発明の第1の実施例のX方
向及びY方向の断面図、第2図(a)、(b)はそれぞ
れ第1図(a)及び(b)の外部端子取り出し部の部分
拡大断面図である。第1図(a)、(b)及び第2図(
a)。Next, the present invention will be explained with reference to the drawings. FIGS. 1(a) and (b) are cross-sectional views in the X and Y directions of the first embodiment of the present invention, respectively, and FIGS. 2(a) and (b) are respectively FIGS. FIG. 3B is a partially enlarged cross-sectional view of the external terminal extraction portion of FIG. Figure 1 (a), (b) and Figure 2 (
a).
(b)において、21は透光性を有するガラス基板、2
2はガラス基板21上に形成されたマトリックス型の薄
膜EL素子である。この薄膜EL素子22に於ける23
は、ITOを蒸着法やスパッタ法でX方向に沿って所定
のピッチで形成したストライプ上の透明電極、24は透
明電極23上を覆うY2O3等の透明な第1絶縁層、2
5は第1絶縁層24上に形成したZnS:Mn等の発光
層、26は発光層25上を覆うY2O3等の透明な第2
の絶縁層、27は第2絶縁層26上にY方向に沿って形
成したストライプ状のへe蒸着膜による背面電極である
。28はカラーガラスであり、29の接着剤でもってガ
ラス基板21に固着され、薄Jl14EL素子22の外
囲器30を構成する。40はガラス基板21に埋め込ま
れたストライブ状の導電端子である。導電端子40と透
明電極23.背面電極27は同ピツチである。透明電極
23と背面電極27の各一端部はカバーガラス28のガ
ラス基板21への接合部位の手前まで延設され、この延
設端部とガラス基板21の埋め込まれた導電端子40は
重畳接続される。31は外囲器30の内部空間に充填さ
れたシリコンオイル等の絶縁保護流体でカバーガラスに
形成された注入孔32から注入され、注入後に上記注入
孔32の蓋板33で密閉される。34.35は導電端子
を引出すために重畳接続された端子部である。36は薄
膜EL素子22の電極外部引出し用のフレキシブルリー
ドで、プラスチックフィルム37に銅箔等の外部リード
38をストライブ状に多数被着形成したものであり、ガ
ラス基板21の周辺部上に形成された端子部34.35
上に対応する外部リード38の端部がはんだによって電
気的及び機械的に接続される。In (b), 21 is a transparent glass substrate;
2 is a matrix type thin film EL element formed on a glass substrate 21. 23 in this thin film EL element 22
2 is a striped transparent electrode formed of ITO at a predetermined pitch along the X direction by vapor deposition or sputtering; 24 is a transparent first insulating layer such as Y2O3 that covers the transparent electrode 23;
5 is a light emitting layer such as ZnS:Mn formed on the first insulating layer 24, and 26 is a transparent second layer such as Y2O3 covering the light emitting layer 25.
The insulating layer 27 is a back electrode made of a striped e-evaporated film formed on the second insulating layer 26 along the Y direction. Colored glass 28 is fixed to the glass substrate 21 with an adhesive 29, and constitutes an envelope 30 of the thin J14EL element 22. 40 is a strip-shaped conductive terminal embedded in the glass substrate 21. Conductive terminal 40 and transparent electrode 23. The back electrode 27 has the same pitch. One end of each of the transparent electrode 23 and the back electrode 27 is extended to the front side of the joining portion of the cover glass 28 to the glass substrate 21, and this extended end and the conductive terminal 40 embedded in the glass substrate 21 are connected in an overlapping manner. Ru. 31 is a dielectric protection fluid such as silicone oil filled in the inner space of the envelope 30 and is injected from an injection hole 32 formed in the cover glass, and after injection, the injection hole 32 is sealed with a cover plate 33. Reference numerals 34 and 35 indicate terminal portions connected in an overlapping manner to draw out conductive terminals. Reference numeral 36 indicates a flexible lead for externally extending the electrodes of the thin film EL element 22, and is made by forming a large number of external leads 38 such as copper foil on a plastic film 37 in the form of stripes, and is formed on the periphery of the glass substrate 21. Terminal section 34.35
The ends of the external leads 38 corresponding to the top are electrically and mechanically connected by solder.
第3図(a)、(b)は、それぞれ本発明の第2の実施
例のX方向とY方向の外部端子取り出し部の部分拡大断
面図である。第2の実施例は第3図(a)、(b)に示
すように、導電端子40が透明電極23、背面電極27
やガラス基板21の周辺部上に設けられた端子部34.
35と重畳接続される部位以外をガラス基板21に完全
に埋設させている。これにより、ガラス基板21にカバ
ーガラス28を接着するための溝41を設けることがで
き、位置合わせがしやすくなるという利点がある。FIGS. 3(a) and 3(b) are partially enlarged cross-sectional views of the external terminal take-out portion in the X direction and the Y direction, respectively, of the second embodiment of the present invention. In the second embodiment, as shown in FIGS. 3(a) and 3(b), the conductive terminal 40 has a transparent electrode 23 and a back electrode 27.
and a terminal portion 34 provided on the peripheral portion of the glass substrate 21.
The portion other than the portion that is overlapped and connected to 35 is completely buried in the glass substrate 21. This has the advantage that a groove 41 for adhering the cover glass 28 to the glass substrate 21 can be provided, making alignment easier.
以上説明したように本発明は、薄膜ELディスプレイパ
ネルの薄膜EL素子の外囲器外への端子引き出しをガラ
ス基板の周辺部に埋め込まれた導電端子を介して行うこ
とにより、従来の方法ではよく発生していたカバーガラ
スのガラス基板への接着部分下での薄膜EL素子の端子
引き出し用の電極延設部分の切断による通電不良をなく
すことができる効果がある。As explained above, the present invention allows terminals of thin-film EL elements of a thin-film EL display panel to be drawn out of the envelope through conductive terminals embedded in the peripheral part of a glass substrate, which is not possible with conventional methods. This has the effect of eliminating the current conduction failure caused by cutting of the electrode extension portion for drawing out the terminals of the thin film EL element under the adhesive portion of the cover glass to the glass substrate.
第1図(a>、(b)はそれぞれ本発明、の第1の実施
例のX方向及びY方向の断面図、第2図(a)、(b)
はそれぞれ第1図(a)及び(b)の外部端子取り出し
部の部分拡大断面図、第3図(a)、(b)はそれぞれ
本発明の第2の実施例のX方向及びY方向の外部端子取
り出し部の部分拡大断面図、第4図(a)、(b)はそ
れぞれ従来の薄膜ELディスプレイパネルの一例のX方
向及びY方向の断面図、第5図(a)。
(1))はそれぞれ第4図(a)及び(b)の外部端子
取り出し部の部分拡大断面図、第6図は背面電極の延設
部分の切断状態を説明する要部拡大断面図である。
1.21・・・ガラス基板、2,22・・・薄膜EL素
子、3.23・・・透明電極、4,24・・・・第1の
誘電体層、5,25・・・発光層、6.26・・・第2
の誘電体層、7,27・・・背面電極、8.28・・・
カバーガラス、9.29・・・接着剤、10.30・・
・外囲器、11.31・・・絶縁性保護流体、12.3
2・・・注入孔、23,33・・・蓋板、14,15,
34.35・・端子部、16.36・・・フレキシブル
リード、17.37・・・プラスチックフィルム、]、
8.38・・外部リード、40・・・導電端子、41・
・・溝。Figure 1 (a>, (b) is a sectional view in the X direction and Y direction of the first embodiment of the present invention, respectively, Figure 2 (a), (b)
1(a) and (b) are partial enlarged cross-sectional views of the external terminal take-out portion, respectively, and FIGS. 3(a) and (b) are views of the X-direction and Y-direction, respectively, of the second embodiment of the present invention. FIGS. 4(a) and 4(b) are partially enlarged cross-sectional views of an external terminal extraction portion, and FIG. 5(a) is a cross-sectional view in the X direction and Y direction of an example of a conventional thin film EL display panel, respectively. (1)) is a partial enlarged sectional view of the external terminal take-out part of FIGS. 4(a) and (b), respectively, and FIG. 6 is an enlarged sectional view of the main part illustrating the cut state of the extended portion of the back electrode. . 1.21...Glass substrate, 2,22...Thin film EL element, 3.23...Transparent electrode, 4,24...First dielectric layer, 5,25...Light emitting layer , 6.26...second
dielectric layer, 7, 27... back electrode, 8.28...
Cover glass, 9.29... Adhesive, 10.30...
・Envelope, 11.31... Insulating protective fluid, 12.3
2... Injection hole, 23, 33... Lid plate, 14, 15,
34.35...Terminal part, 16.36...Flexible lead, 17.37...Plastic film, ],
8.38... External lead, 40... Conductive terminal, 41...
··groove.
Claims (1)
薄膜EL素子を封入した薄膜ELディスプレイパネルに
おいて、薄膜EL素子の外部端子取り出し用導電端子が
前記ガラス基板に埋めこまれていることを特徴とする薄
膜ELディスプレイパネル。In a thin film EL display panel in which a thin film EL element is enclosed in an envelope formed by bonding a glass substrate and a cover glass, a conductive terminal for taking out an external terminal of the thin film EL element is embedded in the glass substrate. Characteristic thin film EL display panel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1169522A JPH0334289A (en) | 1989-06-29 | 1989-06-29 | Membranous el display panel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1169522A JPH0334289A (en) | 1989-06-29 | 1989-06-29 | Membranous el display panel |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0334289A true JPH0334289A (en) | 1991-02-14 |
Family
ID=15888067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1169522A Pending JPH0334289A (en) | 1989-06-29 | 1989-06-29 | Membranous el display panel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0334289A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100471961B1 (en) * | 2002-08-07 | 2005-03-10 | 광건티앤씨(주) | Door frame |
KR100682377B1 (en) * | 2001-05-25 | 2007-02-15 | 삼성전자주식회사 | Organic electroluminescence device and method for fabricating thereof |
JP2009026770A (en) * | 2008-10-02 | 2009-02-05 | Seiko Epson Corp | Display device |
JP2015057658A (en) * | 2000-04-19 | 2015-03-26 | 株式会社半導体エネルギー研究所 | Light-emitting device |
-
1989
- 1989-06-29 JP JP1169522A patent/JPH0334289A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015057658A (en) * | 2000-04-19 | 2015-03-26 | 株式会社半導体エネルギー研究所 | Light-emitting device |
US9443461B2 (en) | 2000-04-19 | 2016-09-13 | Semiconductor Energy Laboratory Co., Ltd. | Electronic device and method of driving the same |
KR100682377B1 (en) * | 2001-05-25 | 2007-02-15 | 삼성전자주식회사 | Organic electroluminescence device and method for fabricating thereof |
KR100471961B1 (en) * | 2002-08-07 | 2005-03-10 | 광건티앤씨(주) | Door frame |
JP2009026770A (en) * | 2008-10-02 | 2009-02-05 | Seiko Epson Corp | Display device |
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