JPS584277A - Connector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connector used for electrical connection between a wiring board and a liquid crystal display element in an electronic desktop calculator.

First, a conventional connector will be explained.

1 and 2 are cross-sectional views of conventional connectors.

The connector shown in FIG. 1 consists of a flexible film I such as a polyester film, a conductive paint 2 and a conductive adhesive 8
A conductive part made of and an insulating part made of insulating adhesive 4,
These conventional connectors are formed alternately using methods such as screen printing, but as these conventional connectors are printed on the same film many times and dried repeatedly each time, there are problems with reduced accuracy due to film shrinkage and problems with printing. This method has problems such as difficulty in positioning each time, and requires a lot of time for drying, etc., making it difficult to achieve mass production effects.

In addition, the connector shown in FIG. 2 has an insulating adhesive 6 coated on the surface of a flexible film 5, and a conductive paint 7 and a conductive adhesive 8 coated on the surface of the adhesive 6. The connector is formed by a method such as printing, but this connector is prone to disconnection of the conductive part due to the softening of the insulating adhesive that occurs when bonding to display elements etc. by thermocompression bonding. The disadvantage was that it was easy for this to occur.

The present invention has been made with the aim of obtaining a connector that can eliminate the drawbacks of the conventional connectors described above. A film with a conductive adhesive attached by a method such as printing is cut into predetermined pieces, and the film is pasted at predetermined intervals onto a separately prepared flexible film with an insulating adhesive. The present invention provides a connector characterized in that it is configured by attaching the connector.

Hereinafter, the present invention will be described in detail based on examples.

FIG. 3 is a flowchart showing the manufacturing procedure of one embodiment of the present invention.

A film 14 with a conductive adhesive formed by coating a conductive paint 12 on a flexible film 11 such as a polyester film, and a conductive adhesive 13 thereon; and a flexible film 15 also made of a polyester film. A film 1 with an insulating adhesive formed by applying an insulating adhesive 16 thereon
7 is cut into long strips and wound up into rolls, and then an adhesive-backed film 20 is formed by applying an insulating adhesive 19 onto the surface of a separately provided flexible film I8 such as a polyester film. In, each of the above films 14.1
The connector 21 of this embodiment can be obtained by alternately attaching the connectors 7 to 7. Note that the conductive paint 12 may be omitted depending on the case.

FIG. 4 is a sectional view of another embodiment of the invention.

In this embodiment, the insulating adhesive-attached film 17 cut into thin strips is not used, and instead, the insulating adhesive 32 applied on the surface of the film 81 is made thicker by thermocompression bonding or the like. This is to form an insulating part when the two are connected.

FIG. 5 is a perspective view showing the state in which the connector of the present invention is used. Shows what is connected.

According to the connector of the present invention described above, the drawbacks of conventional connectors can be eliminated and the following effects can be achieved.

(1) Easy to manufacture and suitable for mass production.

(2) By changing the cutting width or the time interval of pasting, it is possible to obtain a connector with desired specifications (
(The cutting width can be set to a minimum of about 0.5 mm).

(3) Since a continuous roll-shaped connector is produced, the length can be easily changed and automation is easy.

(4) Since the structure includes a lined film, it is possible to prevent wire breakage during thermocompression bonding.

[Brief explanation of the drawing]

1 and 2 are cross-sectional views of a conventional connector, FIG. 3 is a flowchart showing the manufacturing procedure of one embodiment of the present invention, FIG. 4 is a cross-sectional view of another embodiment of the present invention, and FIG. 5 FIG. 2 is a perspective view showing the connector of the present invention in use. Codes 11.15, 18, 31: Flexible film, 12: Conductive paint, 13: Conductive adhesive, 14: Film with conductive adhesive, 16, 19° 32: Insulating adhesive,
17.20: Film with insulating adhesive, 21.4
8: Connector, 4 Summer: Wiring board, 42: Liquid crystal display element. Agent Patent Attorney Aihiko Fukushi Procedural Amendment 1. Indication of the case Patent application No. 56-10211'6 2. Name of the invention Connector 3. Person making the amendment Relationship to the case Patent applicant 4. Agent Address: Tatami 645, 22-22, Nagaike-cho, Abeno-ku, Osaka City. 6. Column 7 for detailed description of the invention in the specification to be amended, Contents of the amendment

Claims (1)

[Claims] 1. A film formed by cutting a film with a conductive adhesive into a predetermined width, in which a conductive adhesive (or a conductive paint and a conductive adhesive) is attached to a flexible film by a method such as printing. A connector characterized in that it is constructed by pasting it at predetermined intervals on a separately provided flexible film with an insulating adhesive.