JPH11162636A - El plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent cut or breakage during a service, transit and storage by using protector covers to cover the area around the boundary between a protection sheet and lead terminals exposed from the sheet from the front surface and rear surface. SOLUTION: Each protector cover 15 is formed as a molding from a synthetic resin, and a pair of lead terminals 14 are surrounded thereby from the two sides, and such covers are fastened in adhesion to the front surface and rear surface of a protection sheet 12 around the boundary between the sheet 12 and lead terminals 14. The means of fastening may be fitting-on, pressure attachment, adhesion, etc. The tips of the lead terminals 14 are embedded in the covers 15 so that they form female terminal, and at the time of connection, a male terminal is inserted from the outside through an insert hole 15c. Because the lead terminals 14 are surrounded by the covers 15, no external force will act on, and the area around the boundary with the protection sheet 12 is free of breakage, wire breakage, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an improvement of a conventionally known EL plate.

[0002]

2. Description of the Related Art Conventionally, EL plates are known. Its applications include advertising billboards, facility information boards, building signs, road signs, mood lighting, and many others. EL is an abbreviation of electroluminescence, and this medium has a property of converting electric energy to light energy,
Light is emitted when a voltage is applied to this substance and a current flows. A conventionally known EL plate will be described with reference to FIG. 1 is an EL plate, 2 is a protective sheet formed on the front and back surfaces thereof, 3
Is an EL medium, and 4 is a lead terminal.

[0003] An EL medium is formed into a thin film sheet and a fluorescent film is applied thereon, or a fluorescent material is kneaded into the medium by a special treatment to form a thin film sheet. Needless to say, the sheet-like medium is an information medium such as a character and a design. The medium is covered with a protective sheet made of a transparent or colored translucent synthetic resin sheet from both sides, and the periphery thereof is heat-sealed to form one EL plate. The production procedure is performed by the method of each company. The names are referred to by various names such as an EL sheet, an EL panel, and an EL film. Thus, the EL medium has a structure in which lead terminals (bipolar terminals) are formed for connection to an external power supply, and one end of the terminal is exposed outside the end of the protective sheet, that is, the package sheet.

[0004]

The above-mentioned EL plate is extremely thin, has a total thickness of 1 mm or less, and the lead terminals connected to the EL medium are each made of a thin material. In some cases, the exposed portions of the lead terminals are at least exposed to external force at least in the vicinity of the boundary between the protective sheet and the lead terminals. The plate itself could not be used and had to be replaced, which was wasteful.

[0005]

The present invention has the following features. It is composed of an EL medium, a protective sheet of a predetermined size formed on the front and back sides of the EL medium to cover the EL medium, and an exposed state connected to the EL medium and exposed outside the protective sheet. An EL plate comprising a lead terminal, wherein the vicinity of the boundary between the protective sheet and the lead terminal exposed from the sheet is covered with a protective cover from the front and back sides. "
It is.

[0006]

In the EL plate of the present invention, since the lead terminals exposed from the protective sheet are covered with the protective cover from the front and back sides in the vicinity of the boundary with the protective sheet, that portion may not be directly subjected to external force. No load is applied at any time during use, transportation, and storage, so there is no breakage or breakage. Therefore, the service life of the EL plate can be extended, the replacement of the EL plate is not troublesome, and the cost can be reduced.

[0007]

Embodiments of the present invention will be described with reference to the drawings. This will be described with reference to FIGS. 11 is an EL plate of the present invention, 12 is a protective sheet of a predetermined size formed on the front and back surfaces of the EL medium to cover and protect the EL medium, 13 is an EL medium, and 14 and 14 are connected to the EL medium. And the lead terminals formed in an exposed state outside the protective sheet. Such a structure is the same as a conventionally known structure. 15 is a protective cover of the present invention. The protective cover covers the vicinity of the boundary between the protective sheet and the lead terminals exposed from the sheet from both front and back surfaces.

More specifically, the protective cover is made of a synthetic resin molded body. As shown in FIGS. 2 and 3, the intermediate portion is a bent portion 15a. A pair of cover portions 15b, 15b on both sides thereof are structured to be openable and foldable. Moreover, the strength and rigidity are increased by making the periphery thick. Fifteen
c is an insertion port of an external terminal. This protective cover is shown in FIG.
As shown in FIG. 2, the pair of lead terminals 14, 14 are surrounded from both sides, and are integrally fixed to the front and back surfaces of the protection sheet in the vicinity of the boundary between the protection sheet and the lead terminals. The fixing means of the protective cover with the protective sheet is fitted,
Pressing, bonding, and other known fixing means can be employed.

The terminal 14 is formed with its tip buried in a protective cover. This terminal is a female terminal, and a male terminal is inserted from the outside through the insertion port 15c at the time of connection. Accordingly, since the lead terminal 14 is surrounded by the protective cover, no external force acts on the lead terminal 14, and it is possible to eliminate the possibility of an accident such as breakage or disconnection near the boundary with the protective sheet.

FIG. 4 shows another embodiment of the present invention. The protective cover is the same as in the above embodiment. Lead terminal 1
Reference numerals 4 and 14 denote male terminals, and the vicinity of the boundary between the terminals and the protective sheet is covered with a protective cover. As described above, the protective cover is formed to have a predetermined size from the boundary portion to the protective sheet side and the lead terminal side. The male terminals protrude outward from the insertion ports 15c, 15c (not shown) so that the tips of the male terminals can be inserted into external female terminals.

[0011]

According to the EL plate of the present invention, the lead terminals exposed from the protective sheet are covered with the protective cover from the front and back sides in the vicinity of the boundary with the protective sheet. No load is applied at any time during use, transportation, and storage, so there is no breakage or breakage. Therefore, the service life of the EL plate can be extended, the replacement of the EL plate is not troublesome, and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic front view showing one embodiment of the EL plate of the present invention.

FIG. 2 is an enlarged cross-sectional view of a main part of the EL plate shown in FIG.

FIG. 3 is an expanded plan view of a main part of the terminal protection cover of the EL plate shown in FIG. 1;

FIG. 4 is a schematic front view showing another embodiment of the EL plate of the present invention.

FIG. 5 is a schematic front view of a conventional EL plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 EL plate 12 Protective sheet 13 EL medium 14 Lead terminal 15 Protective cover

Claims (1)

[Claims] An EL medium, a protective sheet of a predetermined size formed on the front and back sides of the EL medium to cover the EL medium,
An EL plate comprising: a lead terminal connected to an EL medium and formed in an exposed state outside the protection sheet, the vicinity of a boundary between the protection sheet and the lead terminal exposed from the sheet. An EL plate characterized in that is covered with a protective cover from the front and back sides.