JPS6016080Y2 - electroluminescent lamp - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an electrode extraction structure of an electroluminescent lamp, particularly an elongated tape-shaped electroluminescent lamp.

Conventionally, as shown in FIG. 1, an electroluminescent lamp 1 has a luminescent layer 4 formed by laminating a phosphor layer or an insulating layer between a pair of electrode layers 2 and 3, at least one of which is transparent. It has a structure in which it is sandwiched in between and sealed with a resin outer skin 5 from both sides.

In the electroluminescent lamp 1 having such a structure, the light emitting layer 4 is usually formed into a thin layer of about several tens of microns to 100 microns.
When the lead-out leads 6.7 are taken out from the electrode layers 2, 3, there is a risk of a short circuit with the opposing electrode layers 3, 2 or a decrease in insulation.

For this reason, generally, as shown in the figure, the end faces of both electrode layers 2 and 3 are shifted and the lead-out leads 6 and 7 are taken out in opposite directions to avoid short-circuiting with the other electrode layer.

However, in the case of an elongated tape-like structure in which it is necessary to take out both leads from one side, for example, in the case of an electroluminescent lamp such as a fishing float, conventionally, as shown in Figs. 2 and 3, both electrodes are layered. An insulating material 8 is inserted on the other electrode layer 3, 2 side facing the connecting portion of the second and third lead-out leads 6.7.

By inserting the insulating material 8 in this way, the insulation between each lead-out lead 6.7 and the electrode layers 3 and 2 disposed opposite to each other is improved. Workability is poor because the electrode leads are taken out.

There were drawbacks such as difficulty in obtaining electrodes with small widths.

The present invention has been proposed in view of the above, and provides an electrode extraction structure for an electroluminescent lamp that allows both lead-out leads to be taken out from one end of an elongated tape-shaped electrode with good workability and has excellent insulation properties.

A feature of the present invention is that a tape-shaped insulating film with conductive bands formed on both sides is used as the lead-out lead.

This insulating film is sandwiched between tape-shaped electrodes to connect the electrodes, and the electrodes can be taken out efficiently without shorting or deteriorating the insulation, and an electroluminescent lamp with a small electrode width can be easily produced. Can be done.

Embodiments of the present invention will be described in detail below with reference to the drawings.

Figures 4 and 5 show a flexible electroluminescent lamp 1 according to the present invention.
1 shows an elongated tape-shaped fishing float double-sided electroluminescent lamp.

In the figure, 12 and 13 are flexible insulating films 12.
A pair of electrode layers are formed by coating transparent conductive films 12b and 13b on a and 13a, for example, a transparent conductive film formed by forming an indium oxide film on a polyester film is used.

Reference numeral 14 denotes a phosphor layer sandwiched and laminated between the pair of electrode layers 12 and 13, and an insulator layer 15 made of a thin film of polyvinylidene fluoride (!: phosphor powder of zinc sulfide is coated with phosphor powder of cyanoethyl cellulose). Phosphor layer 16 dispersed in high dielectric material
It consists of

Transparent conductive films 12b and 13 of electrode layers 12 and 13
Although not shown, on b, a current collector made of Ag paste is formed so as to surround the periphery of the light emitter layer 14, and the terminal portions 17 and 18 of the current collector are attached to the conductive bands of the lead-out leads 19, which will be explained below. Connected.

As shown in FIG.
Conductive bands 21 and 22 are coated with stripes of Ag paste, metal foil, etc. on both sides of the wire.

A resin outer cover 23 made of trifluorochloroethylene is attached from both sides of the electrode layers 12 and 13 to cover part of the light emitter layer 14 and the lead-out leads 19.

As described above, according to this embodiment, the lead-out leads 19 in which the conductive bands 21, 22 are formed in stripes on both sides of the insulating film 20 are used to connect the pair of electrode layers 12, 13 with the light-emitting layer 14 sandwiched between them. Since both electrodes and the lead-out lead are connected by inserting them into the tube, it is easy to take out the electrodes of the long tape-shaped electroluminescent lamp without causing short circuits between the electrodes or deterioration of insulation, and the electrode width can be made as wide as possible. Miniaturized.

Furthermore, if the material of the insulating film 20 of the lead-out lead 19 is made the same as the material of the resin outer cover 23 in this case, the two will be welded together during sealing, and airtightness will be maintained.

FIGS. 7 and 8 show another embodiment of the present invention, in which an elongated tape-shaped electroluminescent lamp 24 is shown.

In this electroluminescent lamp 24, the lead-out lead 19 of the electro-luminescent lamp 11 of the embodiment described above is completely sealed with a resin outer cover 23, and further, outer lead-out leads 25 and 26 are connected to the conductive bands 21 and 22 of this lead-out lead 19, respectively. It is what was done.

That is, the lead-out lead 19 is used as a relay lead in this case.

With this configuration, the conductive bands 21 and 22 are formed on both sides of the insulating film 20 in the lead-out lead 19, and the outer lead-out leads 25 and 26 can be easily connected.

Further, in the embodiment described above, since the lead-out lead 19 uses the insulating film 20, it becomes difficult to use solder to the power supply terminal when the product is used, but this configuration eliminates this problem.

As explained above, the present invention includes a pair of elongated electrode layers that hold a light emitting layer between them, lead-out leads connected to the terminal ends of the electrode layers, and The lead-out leads are sandwiched between the two electrode layers, and are formed of an insulating film with striped conductive bands on both sides, making it possible to take out the electrodes with good workability. , a tape-shaped electroluminescent lamp with a small electrode width can be easily produced without causing electrode short circuits or insulation deterioration.

[Brief explanation of drawings]

Figures 1 to 3 show conventional examples. Figure 1 is a cross-sectional view of an electroluminescent lamp with lead-out leads taken out from both sides, Figure 2 is a cross-sectional view of an electro-luminescent lamp with lead-out leads taken out from one side, and Figure 3. The figure is a sectional view taken along the line III--III in Fig. 2, Fig. 4 is a sectional view of the electroluminescent lamp of the present invention, and Fig. 5 is a sectional view taken from ■-■ in Fig. 4.
6 is a perspective view of the lead-out lead of the parts shown in FIG. 4, FIG. 7 is a sectional view of an electroluminescent lamp according to another embodiment of the present invention, and FIG. It is a sectional view taken along the line -■. 11.24...Electroluminescent lamp, 12.13...
...Electrode layer, 14... Luminescent layer, 19...
...Output lead, 20...Insulating film, 2
1.22... Conductive band, 23... Resin outer cover.

Claims (1)

[Scope of utility model registration request] It consists of a pair of electrode layers sandwiching a light emitting layer, a lead-out lead connected to the end of each electrode layer, and a resin outer skin attached from both sides of the electrode layer, and the lead-out lead has a conductor on both sides. 1. An electroluminescent lamp characterized in that it is formed of an insulating film having an insulating film formed thereon, and a conductor of the insulating film is connected to the electrode layer.