JPH0320896U

JPH0320896U -

Info

Publication number: JPH0320896U
Application number: JP8114689U
Authority: JP
Priority date: 1989-07-12
Filing date: 1989-07-12
Publication date: 1991-02-28

Description

[Brief explanation of drawings]

第１図は本発明に係るＥＬ発光素子の一実施例
としての分散型ＥＬの構造を示す断面図、第２図
はこの分散型ＥＬにおけるリードフレームの形状
ならびに配置関係を示す平面図、第３図はこの分
散型ＥＬの他の実施例の構造を示す要部断面図、
第４図は第１図に示した分散型ＥＬにおいてその
発光層および絶縁層の変形状態を示す要部断面図
、第５図は第１図に示した分散型ＥＬにおいてそ
の上下方向に配置した防湿フイルムを溶着する前
工程を示す要部断面図、第６図は第３図に示した
分散型ＥＬにおいてその上下方向に配置した防湿
フイルムを溶着する前工程を示す要部断面図、第
７図は第３図に示した分散型ＥＬにおいてその防
湿フイルムを配置する前工程を示す要部斜視図、
第８図は第７図においてその「」字屈曲形状と
するリードフレームを透明電極に接続するリード
フレームとした場合の要部斜視図、第９図は第１
図および第３図に示した分散型ＥＬに使用するリ
ードフレームの断面図、第１０図は従来の分散型
ＥＬの基本構造を示す断面図、第１１図はこの分
散型ＥＬにおけるリードフレームの形状ならびに
配置関係を示す平面図、第１２図はこの分散型Ｅ
Ｌにおけるリードフレームと防湿フイルムとの間
に生ずるスキマを説明するための断面図である。１……透明電極、２……背面電極、３……発光
層、４……絶縁層、５……積層体、６−１，６−
２……防湿フイルム、９−１，９−２……リード
フレーム、９−１ａ，９−１ｂ，９−２ａ，９−
２ｂ……貫通孔。 FIG. 1 is a cross-sectional view showing the structure of a distributed EL as an embodiment of the EL light emitting element according to the present invention, FIG. 2 is a plan view showing the shape and arrangement of the lead frame in this distributed EL, and FIG. The figure is a sectional view of main parts showing the structure of another embodiment of this distributed EL,
Figure 4 is a cross-sectional view of the main parts of the dispersion type EL shown in Figure 1, showing the deformed state of the light emitting layer and insulating layer, and Figure 5 is a cross-sectional view of the main parts of the distributed type EL shown in Figure 1, showing the deformed state of the light emitting layer and the insulating layer. FIG. 6 is a sectional view of a main part showing a pre-process of welding a moisture-proof film; FIG. The figure is a perspective view of the main part showing the pre-process of arranging the moisture-proof film in the distributed EL shown in FIG.
Fig. 8 is a perspective view of the main part when the lead frame with the bent shape in Fig. 7 is used as a lead frame connected to a transparent electrode, and Fig. 9 is a perspective view of the main part
10 is a sectional view showing the basic structure of the conventional distributed EL, and FIG. 11 is the shape of the lead frame in this distributed EL. and a plan view showing the arrangement relationship, FIG.
FIG. 3 is a cross-sectional view for explaining a gap that occurs between the lead frame and the moisture-proof film at L. FIG. DESCRIPTION OF SYMBOLS 1... Transparent electrode, 2... Back electrode, 3... Light emitting layer, 4... Insulating layer, 5... Laminate, 6-1, 6-
2... Moisture-proof film, 9-1, 9-2... Lead frame, 9-1a, 9-1b, 9-2a, 9-
2b...through hole.

Claims

[Scope of utility model registration request]

a laminate including a light-emitting layer and an insulating layer sandwiched between a transparent electrode and a back electrode; first and second moisture-proof films disposed vertically with the laminate sandwiched therebetween; comprising first and second lead frames connected to a back electrode, and sealing the laminate by welding the first moisture-proof film and the second moisture-proof film;
In an EL light emitting device in which the first and second lead frames are drawn out through the welded portion, a through hole is provided in a surface of at least one of the first and second lead frames located at the welded portion. An EL light emitting device characterized by the following.