JPH0547726Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

The present invention relates to a long electroluminescent molding that is used by being attached linearly to the side surface of the body of a vehicle such as an automobile.

[Prior art]

As a long electroluminescent molding of this type that is used in a linear manner, the structure shown in FIGS. 7 and 8 is well known as a conventional example. As shown in FIG. 7, this long electroluminescent molding is constructed by connecting a large number of electroluminescent elements 3 of a predetermined size to two power supply lines 1 and 2 in parallel so that they are adjacent to each other. The lead wires 4 of each electroluminescent element are connected to each other, and then, as shown in FIG. 8, they are assembled into a predetermined long case 5 to complete one long electroluminescent molding. There is.

[Problem that the idea aims to solve]

The long electroluminescent molding in the conventional example is as follows:
A plurality of electroluminescent elements 3 of a predetermined size are connected to two power supply lines 1 and 2 through lead wires 4 so that they are adjacent to each other, and the plurality of electroluminescent elements 3 are unstable. Since the electroluminescent elements are connected to the power supply lines 1 and 2 in a state where they are connected to the power supply lines 1 and 2 in a state of This poses serious problems, such as the lead wires being twisted or subjected to strong loads, causing them to break.

[Means to solve the problem]

As a specific means for solving the problems of the conventional example, the present invention forms two parallel conductors along the length direction on a long substrate, and attaches a predetermined length to the conductor on the substrate. The present invention provides an electroluminescent molding characterized in that a plurality of electroluminescent elements are connected and the electroluminescent elements are adhesively fixed to the substrate so that the ends of their light emitting parts overlap each other. Since each of the electroluminescent elements is adhesively fixed to the substrate, it is in a stable state, which not only improves the workability of assembly, but also eliminates breakage of lead wires and the like.

【Example】

Next, the present invention will be explained in more detail with reference to the illustrated embodiment. Reference numeral 11 is a board of a predetermined length, and two electrical conductors, ie, feeder lines 12 and 1, are arranged approximately parallel to the board.
Place 3. For example, a printed circuit board may be used as the substrate 11, and two conductors of copper foil may be formed by means such as etching. In this case, the two feeder lines 12 and 13 are formed with a spacing that is approximately the same as the width of a pair of lead wires of an electroluminescent element, which will be described later.
A marker 14 is placed in advance at the position where each lead wire is connected. This substrate is not limited to a hard one, and for example, a flexible one can also be used. An electroluminescent device 15 attached to the substrate 11
has a predetermined size and length, and a pair of lead wires 16 and 17 are taken out from one end thereof. When these pairs of lead wires 16 and 17 are connected to the respective markers 14 by means such as soldering to the feeder lines 12 and 13, a plurality of electroluminescent elements 15 are connected adjacently at approximately equal intervals. It turns out. In this case, the end portions of the electroluminescent elements 15 are mounted so as to slightly overlap each other, thereby making the light emitting surfaces of the electroluminescent elements continuous. A double-sided adhesive tape 18 is attached in advance to the back side of the electroluminescent element 15 as an adhesive fixing means, and the lead wires 16 and 17 are connected to the feeder wire 12 and
13, and then peel off the release paper of the double-sided adhesive tape 18 and connect the substrate 11.
The electroluminescent elements 15 are adhered and fixed in order by arranging them, as shown in FIGS. 3 and 4.
An electroluminescent element 15 is provided integrally with the substrate 11 . In this case, it is sufficient if the double-sided adhesive tape 18 is attached partially, but in consideration of the stability of fixing, it is better to attach it almost entirely.
Furthermore, the double-sided adhesive tape 18 can be attached not only to the electroluminescent element 15 side but also to the substrate 11 side. The electroluminescent element 15 is thus attached to the substrate 11 and housed in a suitable case to form an electroluminescent molding of a required length. In this case, since the electroluminescent element and the substrate are integrally fixed, if the width of the substrate is matched to the width of the case, it can be stored or attached to the case very easily. Further, the width and length of the electroluminescent element 15 attached to the substrate 11 can be appropriately selected; for example, a long element and a short element may be combined and attached. The electroluminescent device 15 has the configuration shown in FIGS. 5 and 6. In other words, the electroluminescent element 15 is entirely covered with the moisture-proof film 19. To explain its structure in detail, an inorganic material with a high dielectric constant such as barium titanate is dissolved in an organic material called a binder with a high dielectric constant (for example, cyano ethyl cellulose) with a solvent, and the mixture is applied by printing or other means onto the back electrode 20. The insulating layer 21 is formed by drying. On top of the insulating layer 21, a phosphor is mixed with a binder in the same manner and dried to form a light-emitting layer 22, and on top of that, a conductive material such as In ₂ O ₃ / SnO ₂ is mixed with an organic material. The prepared conductive paint is applied and dried to form the upper transparent electrode 23. The lead wires 16 and 17 are connected to the back electrode 20 and the transparent electrode 23 on the top surface.
After that, the entire structure is sealed with the moisture-proof film 19. Therefore, each electroluminescent element 1
5 is sealed with a moisture-proof film 19,
A seal portion remains at the peripheral edge, and by attaching the end portions overlapping each other as described above, the light emitting layer 22 becomes continuous. and the ninth
As shown in the figure, the device is placed in the case and attached in a linear manner to the side surface of a vehicle such as an automobile. Note that, of course, the power source is connected by appropriate means.

[Effect of the idea]

As explained above, the electroluminescent molding according to the present invention has two parallel conductors formed along the length on a long substrate, and a plurality of electric fields of a predetermined length applied to the conductors on the substrate. In addition to connecting the light emitting elements, the electroluminescent elements are adhesively fixed to the substrate with the ends of their light emitting parts partially overlapping each other, so that the electroluminescent elements do not fall apart and are integrated with the substrate. Since it is attached to the wire, it is in an extremely stable state, and the lead wire does not break when handling it, storing it in a case, etc., or installing it, which has the excellent effect of improving workability. Furthermore, if two parallel conductors are formed with approximately the same width or spacing as the lead wires of the electroluminescent element, and a marker is provided for the mounting position, the electroluminescent element can be easily attached to the substrate. It also has an excellent effect. Furthermore, by making the board flexible, it has the advantage of being able to be mounted on curved surfaces.

[Brief explanation of drawings]

Fig. 1 is a plan view showing the substrate of the electroluminescent molding according to the present invention, Fig. 2 is a side view showing the state before an electroluminescent element is connected to the substrate and fixed by adhesive, and Fig. 3 is a side view of the electroluminescent element. 4 is an enlarged sectional view taken along the - line in FIG. 3; FIG. 5 is a plan view of the electroluminescent element; FIG. 6 is an enlarged sectional view taken along the - line in FIG. 5; The figure is a schematic perspective view showing a conventional example.
FIG. 8 is a plan view showing the conventional example attached to a case, and FIG. 9 is an explanatory view showing a vehicle equipped with the electroluminescent molding according to the present invention. 11... Substrate, 12, 13... Conductor (feeder line), 14... Marker, 15... Electroluminescent element,
16, 17...Lead wire, 18...Double-sided adhesive tape, 19...Moisture-proof film, 20...Back electrode,
21...Insulating layer, 22...Light emitting layer, 23...Transparent electrode.

Claims (1)

[Scope of utility model registration request] Two parallel conductors are formed along the length direction on a long substrate, a plurality of electroluminescent elements of a predetermined length are connected to the conductors on the substrate, and the electroluminescent elements are connected to the conductors on the substrate. An electroluminescent molding, characterized in that the ends of the light emitting parts are adhesively fixed to the substrate in such a way that parts of the ends overlap with each other.