CN111557064A - Wiring structure, lighting device, and method for manufacturing wiring structure - Google Patents

Wiring structure, lighting device, and method for manufacturing wiring structure Download PDF

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Publication number
CN111557064A
CN111557064A CN201980006965.2A CN201980006965A CN111557064A CN 111557064 A CN111557064 A CN 111557064A CN 201980006965 A CN201980006965 A CN 201980006965A CN 111557064 A CN111557064 A CN 111557064A
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China
Prior art keywords
contact
conductor
contact portion
adapter
connector
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CN201980006965.2A
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Chinese (zh)
Inventor
加藤宣和
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Liquid Crystal (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Planar Illumination Modules (AREA)

Abstract

The disclosed device is provided with: a first contact portion formed by exposing a first conductor (11) covered with an insulator (20) from the insulator; a second contact portion (17b) formed by exposing the first conductor from the insulator; and a separating part (19) for separating the first conductor between the first contact part and the second contact part; the first contact portion is electrically connected to a first contact of a connector, and the second contact portion is electrically connected to a second contact of the connector different from the first contact.

Description

Wiring structure, lighting device, and method for manufacturing wiring structure
Technical Field
The present invention relates to a wiring structure, a lighting device provided with the wiring structure, and a method for manufacturing the wiring structure.
Background
For example, as described in patent document 1, there has been proposed a lighting device (backlight device) in which a light-emitting element substrate (light source substrate) on which a plurality of light-emitting elements (LEDs) are mounted is connected to a control substrate (LED control unit) that controls light emission of the light-emitting elements using wires (signal input/output leads) and connectors.
Prior art documents
Patent document
Patent document 1 Japanese patent laid-open No. 2008-170729
Disclosure of Invention
Problems to be solved by the invention
However, in the backlight device in which the light emitting element substrate and the control substrate are connected by using the wires and the connectors, it is necessary to attach contacts to the plurality of wires and perform assembly and wiring such as fitting with the connectors, and it is difficult to realize automatic assembly by a robot or the like, easy assembly of automatic wiring, and simple wiring, for example.
The invention aims to provide a wiring structure capable of realizing simple assembly and simple wiring, a lighting device with the wiring structure and a manufacturing method of the wiring structure.
Means for solving the problems
The wiring structure of the present invention is characterized in that,
the wiring structure includes:
a first contact portion formed by exposing a first conductor covered with an insulator from the insulator;
a second contact portion formed by exposing the first conductor from the insulator; and
a separating portion that separates the first conductor between the first contact portion and the second contact portion,
the first contact portion is electrically connected to a first contact of a connector, and the second contact portion is electrically connected to a second contact of the connector different from the first contact.
In addition, the wiring structure of the present invention is characterized in that,
the wiring structure further includes a circuit board on which the connector is mounted, and the first contact portion is electrically connected to the second contact portion via the circuit board.
In addition, the wiring structure of the present invention is characterized in that,
the wiring structure includes a plurality of the first contacts and the second contacts, at least one of the first contacts and the second contacts is electrically connected via the circuit board, and one of the first contacts and the second contacts is not electrically connected to form a circuit.
In addition, the wiring structure of the present invention is characterized in that,
the wiring structure includes a second conductor that is parallel to the first conductor and is not separated by the separation portion, and one end of the first conductor is connected to one end of the second conductor.
In addition, the wiring structure of the present invention is characterized in that,
the first conductor is a strip-shaped conductor, and is sandwiched between the cover film and the base film, which are the insulator.
In addition, the wiring structure of the present invention is characterized in that,
the first conductor is a wire and is covered with a coating layer as the insulator.
In addition, the wiring structure of the present invention is characterized in that,
the first contact portion and the second contact portion face away from each other, and a housing for fixing the first contact portion and the second contact portion is provided in a space formed by the first contact portion, the separating portion, and the second contact portion.
In addition, the wiring structure of the present invention is characterized in that,
the first contact portion and the second contact portion are exposed in the same direction, and a housing for fixing the first contact portion and the second contact portion is provided on the back side of the first contact portion and the second contact portion.
In addition, the wiring structure of the present invention is characterized in that,
the adapter including the first contact portion, the second contact portion, and the separation portion is fitted to the connector by being press-fitted into the connector from a direction intersecting a longitudinal direction of the conductor.
In addition, the wiring structure of the present invention is characterized in that,
the wiring structure has a guide portion that guides connection between the first contact and the first contact portion and connection between the second contact and the second contact portion.
In addition, the wiring structure of the present invention is characterized in that,
the circuit board includes:
a first circuit pattern;
a first input pad connected to the first contact at one end of the circuit board, the first input pad being one of two or more first input pads formed at the one end of the circuit board; and
a first output pad connected to the second contact at one end of the circuit board,
the two or more first input pads are respectively connected in parallel to one terminal of the first circuit pattern, and the two or more first output pads are respectively connected in parallel to the other terminal of the first circuit pattern.
In addition, the wiring structure of the present invention is characterized in that,
the connector is provided with a third contact and a fourth contact,
the circuit board includes:
a second circuit pattern formed inside the first circuit pattern;
a second input pad connected to the third contact, one of two or more second input pads formed at one end of the circuit board; and
a second output pad, one of the two or more second output pads formed at one end of the circuit substrate being connected to the fourth contact,
the two or more second input pads are respectively connected in parallel to one terminal of the second circuit pattern formed inside one terminal of the first circuit pattern, and the two or more second output pads are respectively connected in parallel to the other terminal of the second circuit pattern formed inside the other terminal of the first circuit pattern.
In addition, the wiring structure of the present invention is characterized in that,
the wiring structure includes two or more of the first circuit patterns and two or more of the second circuit patterns, and one of the first circuit patterns and one of the second circuit patterns are formed outside the other of the first circuit patterns and the other of the second circuit patterns.
In addition, the wiring structure of the present invention is characterized in that,
the wiring structure includes two or more of the first circuit patterns and two or more of the second circuit patterns, and one of the second circuit patterns is formed between one of the first circuit patterns and the other of the first circuit patterns.
In addition, the lighting device of the present invention is characterized in that,
the lighting device is provided with: the wiring structure of the present invention; a plurality of light emitting elements; a control substrate for controlling light emission of the light emitting element; a plurality of first contacts, a plurality of second contacts, and a plurality of separators arranged in a longitudinal direction of the first conductor; and a plurality of circuit boards on each of which at least one of the light-emitting elements is mounted, wherein the plurality of first contact portions are electrically connected to the plurality of second contact portions via any one of the plurality of circuit boards, and the first conductor relays electrical connection between the plurality of circuit boards and the control board.
Further, a method for manufacturing a wiring structure according to the present invention includes:
a first opening forming step of forming a plurality of first openings at an arbitrary pitch in a cover film in one product;
a second opening forming step of forming, in the one product, one second opening having a shape different from the shape of the first opening between the first openings in the cover film;
a sticking step of sticking the cover film to the surface of the conductor and the base film to the back surface of the conductor in a state where the strip-shaped conductor, the cover film, and the base film are stretched in the longitudinal direction of the conductor;
a first separation step of separating the conductor between a first contact portion formed of the conductor exposed through the first opening and a second contact portion formed of the conductor exposed through the first opening; and
and a second separation step of separating the conductor between a first contact portion formed of the conductor exposed from the second opening and a second contact portion formed of the conductor exposed from the second opening.
Effects of the invention
According to the present invention, it is possible to provide a wiring structure that can be easily assembled and easily wired, a lighting device provided with the wiring structure, and a method of manufacturing the wiring structure.
Drawings
Fig. 1 is a front view showing a configuration of an illumination device according to a first embodiment.
Fig. 2 is a front view showing the configuration of the flexible flat cable according to the first embodiment.
Fig. 3 is a side view showing the configuration of the flexible flat cable according to the first embodiment.
Fig. 4 is a diagram showing a configuration of an adapter according to the first embodiment.
Fig. 5 is a perspective view showing the structure of the adapter according to the first embodiment.
Fig. 6 is an exploded view showing the structure of the adapter according to the first embodiment.
Fig. 7 is a perspective view showing the structure of the connector according to the first embodiment.
Fig. 8 is a plan view showing the structure of the connector according to the first embodiment.
Fig. 9 is a sectional view showing the structure of the connector according to the first embodiment.
Fig. 10 is a sectional view showing the structure of the connector according to the first embodiment.
Fig. 11 is an exploded view showing the structure of the connector according to the first embodiment.
Fig. 12 is a sectional view showing a state in which the adapter and the connector of the first embodiment are fitted to each other.
Fig. 13 is a sectional view showing a state in which the adapter and the connector of the first embodiment are fitted to each other.
Fig. 14 is a block diagram for explaining electrical connection of the wiring structure of the first embodiment.
Fig. 15 is a diagram showing a configuration of a flexible flat cable according to another embodiment.
Fig. 16 is a block diagram for explaining electrical connection of a wiring structure according to another embodiment.
Fig. 17 is a diagram showing a routing structure of a light emitting element substrate on which a connector connected to an adapter according to another embodiment is mounted. The drawings show a pattern structure of a counter substrate corresponding to the wiring structure shown in fig. 15 and 16.
Fig. 18 is an enlarged view showing a routing structure of a light emitting element substrate on which a connector connected to an adapter of another embodiment is mounted.
Fig. 19 is a front view showing the configuration of the lighting device of the second embodiment (in the case of two cores).
Fig. 20 is a perspective view showing the structure of the flexible flat cable according to the second embodiment (in the case of two cores).
Fig. 21 is a diagram showing the configuration of an adapter and a terminal portion (bridge portion) according to the second embodiment (in the case of two cores).
Fig. 22 is a diagram showing a configuration of a housing constituting an adapter according to the second embodiment (in the case of two cores).
Fig. 23 is a diagram showing a structure of a light-emitting element substrate according to a second embodiment (two-core case).
Fig. 24 is a diagram showing a configuration of a connector according to a second embodiment (in the case of two cores).
Fig. 25 is a diagram showing a configuration of a connector according to a second embodiment (in the case of two cores).
Fig. 26 is an exploded view showing the structure of the connector according to the second embodiment (in the case of two cores).
Fig. 27 is a sectional view showing a state where the adapter and the connector of the second embodiment (in the case of two cores) are fitted to each other.
Fig. 28 is a sectional view showing a state in which the adapter and the connector of the second embodiment (in the case of two cores) are fitted.
Fig. 29 is a front view showing the configuration of a lighting device of the third embodiment (folded back type of one core).
Fig. 30 is a perspective view showing the configuration of a flexible flat cable according to a third embodiment (a folded-back type of a core).
Fig. 31 is a diagram showing the configuration of an adapter and a folded-back portion of a flexible flat cable according to a third embodiment (folded-back type of core).
Fig. 32 is a view showing the configuration of an adapter and a flexible flat cable end portion according to the third embodiment (a core folding type).
Fig. 33 is a view showing a configuration of an adapter attached to a flexible flat cable according to a third embodiment (a core folding type).
Fig. 34 is a view showing a configuration of an adapter attached to an end portion of a flexible flat cable according to a third embodiment (a core folding type).
Fig. 35 is a diagram showing a structure of a light emitting element substrate according to a third embodiment (top-fit type).
Fig. 36 is a diagram showing a configuration of a connector according to a third embodiment (a top-fit type).
Fig. 37 is an exploded view showing the structure of a connector according to the third embodiment (top-fit type).
Fig. 38 is a view showing a configuration of a portion where a connector mounted on a power supply board of the third embodiment is fitted to an adapter mounted on an end portion of a flexible flat cable (a control board side connector of a folded-back type of one core and a fitting view).
Fig. 39 is a diagram showing a configuration of a connector mounted on a power supply board of the third embodiment (a folded-back type control board side connector diagram of one core and a fitting diagram).
Fig. 40 is an exploded view showing a configuration of a connector mounted on a power supply board of the third embodiment (a folded-back type control board side connector of one core and a fitting view).
Fig. 41 is a cross-sectional view showing a state in which the adapter of the third embodiment is fitted to the connector (a folded-back type control board side connector of one core and a fitting view).
Fig. 42 is a cross-sectional view showing a state in which a connector mounted on the power supply board of the third embodiment is fitted to an adapter mounted on an end portion of a flexible flat cable (a control board side connector of a folded-back type of one core and a fitting view).
Fig. 43 is a diagram showing a wiring structure of the fourth embodiment (a structure in which H direction 2 is divided and V direction 4 is divided).
Fig. 44 is a diagram showing a configuration of a flexible flat cable according to a fourth embodiment (a structure in which H direction 2 is divided and V direction 4 is divided).
Fig. 45 is a block diagram for explaining electrical connection of the wiring structure in the fourth embodiment (a structure in which H direction 2 is divided and V direction 4 is divided).
Fig. 46 is a diagram showing a routing structure of a light emitting element substrate on which a connector connected to an adapter of the fourth embodiment (a structure in which the adapter is divided into H direction 2 and V direction 4) is mounted.
Fig. 47 is an enlarged view showing a routing structure of a light emitting element substrate on which a connector connected to the adapter of the fourth embodiment (the structure of dividing into H direction 2 and V direction 4) is mounted.
Fig. 48 is a diagram showing the configuration of the wiring structure according to another embodiment (H direction 2 division, V direction 4 division, and 1 division across two substrates).
Fig. 49 is a diagram showing the configuration of a wiring structure according to another embodiment (a type in which two substrates are divided into two by 2 in the H direction, 4 in the V direction, and 1 in the V direction).
Fig. 50 is a diagram showing a configuration of a connector mounted on a light emitting element substrate according to another embodiment (a type in which H direction 2 division, V direction 4 division, and 1 division are performed across two substrates).
Fig. 51 is a diagram showing a configuration of an adapter to be attached to a flexible flat cable according to another embodiment (a type in which two substrates are divided into two by 2 in the H direction, 4 in the V direction, and 1 in the V direction).
Fig. 52 is a diagram showing a configuration of a wiring structure of the fifth embodiment (two-core parallel type).
Fig. 53 is a diagram showing a configuration of a flexible flat cable according to a fifth embodiment (two-core parallel type).
Fig. 54 is a diagram showing a routing structure of a light emitting element substrate on which a connector connected to an adapter of the fifth embodiment (two-core parallel type) is mounted.
Fig. 55 is an enlarged view showing a routing structure of a light emitting element substrate on which a connector connected to an adapter of the fifth embodiment (two-core parallel type) is mounted.
Fig. 56 is a diagram showing a structure of a connector mounted on a light emitting element substrate of the fifth embodiment (two-chip parallel type).
Fig. 57 is a diagram showing a configuration of an adapter attached to a flexible flat cable according to a fifth embodiment (two-core parallel type).
Fig. 58 is a circuit diagram of a wiring structure (fig. 52) of the fifth embodiment (two-core parallel type).
Fig. 59 is a diagram showing the configuration of the wiring structure of the sixth embodiment (type of division into 6H direction, 3V direction, and 1 division across two substrates).
Fig. 60 is a diagram showing a configuration of a flexible flat cable according to a sixth embodiment (a type in which two substrates are divided into 6 pieces in the H direction, 3 pieces in the V direction, and 1 piece is divided).
Fig. 61 is a diagram showing a state in which an adapter attached to a flexible flat cable according to the sixth embodiment (a type in which the flexible flat cable is divided into 6 pieces in the H direction, 3 pieces in the V direction, and 1 piece is divided so as to span two substrates) is fitted to a connector attached to a light emitting element substrate, and a state in which the adapter is fitted to a connector attached to a control substrate.
Fig. 62 is a diagram showing a configuration of an adapter to be attached to a flexible flat cable according to the sixth embodiment (a type in which two substrates are divided into 6 pieces in the H direction, 3 pieces in the V direction, and 1 piece is divided).
Fig. 63 is a diagram showing the configuration of a flexible flat cable according to the sixth embodiment (type in which two substrates are divided into 6 pieces in the H direction, 3 pieces in the V direction, and 1 piece is divided).
Fig. 64 is a diagram showing the configuration of a flexible flat cable according to the sixth embodiment (type in which two substrates are divided into 6 pieces in the H direction, 3 pieces in the V direction, and 1 piece is divided).
Fig. 65 is a diagram showing a configuration of a housing attached to a flexible flat cable according to the sixth embodiment (a type in which two substrates are divided into 6 in the H direction, 3 in the V direction, and 1 substrate is divided).
Fig. 66 is a diagram showing a routing structure of a light emitting element substrate on which a connector connected to an adapter of the sixth embodiment (a type in which two substrates are divided into 6 pieces in the H direction, 3 pieces in the V direction, and 1 piece is divided) is mounted.
Fig. 67 is an enlarged view showing a routing structure of a light emitting element substrate on which a connector connected to an adapter of the sixth embodiment (a type of dividing into 6 in the H direction, 3 in the V direction, and 1 division across two substrates) is mounted.
Fig. 68 is a diagram showing a configuration of a connector mounted on a light emitting element substrate according to the sixth embodiment (a type in which two substrates are divided into 6 pieces in the H direction, 3 pieces in the V direction, and 1 piece is divided).
Fig. 69 is a diagram showing a configuration of a connector mounted on a light emitting element substrate according to the sixth embodiment (a type in which two substrates are divided into 6 pieces in the H direction, 3 pieces in the V direction, and 1 piece is divided).
Fig. 70 is a view showing a configuration of a flexible flat cable according to another embodiment.
Fig. 71 is a diagram showing the configuration of the wiring structure according to the seventh embodiment (type in which No. 1 pin and No. 4 pin, No. 2 pin and No. 3 pin are terminals, and the connection portion with the control board is a center).
Fig. 72 is a diagram showing a configuration of a terminal of a flexible flat cable according to a seventh embodiment (a type in which No. 1 pin and No. 4 pin, No. 2 pin and No. 3 pin are terminals, and a connection portion with a control substrate is a center).
Fig. 73 is a diagram showing a state in which the flexible flat cable is fitted to the light-emitting element substrate and a state in which the flexible flat cable is fitted to the control substrate in the seventh embodiment (a type in which No. 1 pin and No. 4 pin, No. 2 pin and No. 3 pin are terminals, and a connection portion with the control substrate is a center).
Fig. 74 is a diagram showing the configuration of a control board according to the seventh embodiment (type in which No. 1 pin and No. 4 pin, No. 2 pin and No. 3 pin are terminals, and a connection portion with the control board is a center).
Fig. 75 is a diagram showing the configuration of the central portion of the flexible flat cable according to the seventh embodiment (type in which No. 1 pin and No. 4 pin, No. 2 pin and No. 3 pin are terminals, and the connection portion with the control board is the center).
Fig. 76 is a diagram showing a configuration of a wiring structure according to another embodiment (wire type).
Fig. 77 is a diagram showing the structure of an adapter according to another embodiment (wire type).
Fig. 78 is a diagram showing a configuration of a wiring structure according to another embodiment (flat type).
Fig. 79 is a view showing the structure of an adapter according to another embodiment (flat type).
Fig. 80 is a diagram showing a configuration of a terminal structure according to another embodiment.
Fig. 81 is an exploded view showing the structure of a terminal structure according to another embodiment.
Fig. 82 is a diagram showing a configuration of a terminal structure according to another embodiment.
Fig. 83 is an exploded view showing the structure of a terminal structure according to another embodiment.
Fig. 84 is an exploded view showing the configuration of a wiring structure according to another embodiment.
Fig. 85 is a perspective view showing a configuration of a wiring structure according to another embodiment.
Fig. 86 is a diagram showing a configuration of a wiring structure according to another embodiment.
Fig. 87 is a sectional view showing a configuration of a wiring structure according to another embodiment.
Fig. 88 is a diagram showing a configuration of a wiring structure according to another embodiment.
Fig. 89 is an exploded view showing the configuration of a wiring structure according to another embodiment.
Fig. 90 is a diagram showing a configuration of a wiring structure according to another embodiment.
Fig. 91 is an exploded view showing the configuration of a wiring structure according to another embodiment.
Fig. 92 is an exploded view showing the configuration of a wiring structure according to another embodiment.
Fig. 93 is a diagram showing a configuration of a wiring structure according to another embodiment.
Fig. 94 is a diagram showing a configuration of a wiring structure according to another embodiment.
Fig. 95 is a diagram showing a configuration of a wiring structure according to another embodiment.
Fig. 96 is a diagram showing a state in which the flexible flat cable according to the other embodiment is wound in a reel shape as a bundle.
Detailed Description
Hereinafter, a wiring structure of the lighting device according to the first embodiment of the present invention will be mainly described with reference to the drawings. The illumination device of the present embodiment is mainly used as a backlight device mounted on a liquid crystal display device or the like to illuminate liquid crystal from the back. Fig. 1 is a front view showing a configuration of an illumination device, and is a diagram for explaining a wiring structure of the illumination device. As shown in fig. 1, the lighting device 3 includes: a plurality of light emitting elements (LEDs) 5; a plurality of light-emitting element substrates (LED substrates) 6 on which the light-emitting elements 5 are mounted; two flexible flat cables (hereinafter, FFC)7a, 7 b; a plurality of (20 in the present embodiment) connectors 9; and a mounting member (metal plate) 10 for mounting the light-emitting element substrate 6 and the FFCs 7a, 7 b.
In the following description, an XYZ rectangular coordinate system shown in fig. 1 is set, and the positional relationship of each member and the like will be described with reference to this rectangular coordinate system. The X axis is set to the longitudinal direction of the light-emitting element substrate 6, the Y axis is set to the longitudinal direction of the FFCs 7a, 7b, and the Z axis is set to the direction perpendicular to the surface (substrate mounting surface) of the mounting component 10. In the following description, the 10 light-emitting element substrates 6 on the-X direction side are the 1 st to 10 th light-emitting element substrates 6 in order from the + Y direction side toward the-Y direction side, and the 10 light-emitting element substrates 6 on the + X direction side are the 11 th to 20 th light-emitting element substrates 6 in order from the + Y direction side toward the-Y direction side. The 10 connectors 9 on the-X direction side are the 1 st to 10 th connectors 9 in order from the + Y direction side toward the-Y direction side, and the 10 connectors 9 on the + X direction side are the 11 th to 20 th connectors 9 in order from the + Y direction side toward the-Y direction side.
The light emitting elements 5 are mounted on the light emitting element substrate 6 at equal intervals. The 1 st to 10 th light emitting element substrates 6 are arranged on the mounting member 10 on the-X direction side of the mounting member 10, and the 11 th to 20 th light emitting element substrates 6 are arranged on the + X direction side of the mounting member 10 with the longitudinal direction thereof directed in the X direction. The 1 st to 10 th connectors 9 are attached to the 1 st to 10 th light-emitting element substrates 6 at the ends thereof on the-X direction side. 11 th to 20 th connectors 9 are attached to the respective ends of the 11 th to 20 th light-emitting element substrates 6 on the + X direction side. In the present embodiment, the number of the light-emitting element substrates 6 arranged on the mounting member 10 is 20, but the number of the light-emitting element substrates 6 arranged on the mounting member 10 may be 19 or less, or 21 or more.
The FFC7a is disposed on the-X direction side of the mounting member 10 below the 1 st to 10 th light-emitting element substrates 6, and is accommodated in a groove portion 10a formed on the-X direction side of the mounting member 10. The end portion of the FFC7a on the + Y direction side is bent in the-Z direction, and is electrically connected to the power supply substrate 26 (see fig. 14) disposed on the back surface side of the illumination device 3 (mounting member 10) through the opening 10c provided on the + Y direction side of the groove portion 10 a. Similarly, the FFC7a has its end portion on the-Y direction side bent in the-Z direction and electrically connected to the power supply board 26 disposed on the back side of the illumination device 3 (mounting member 10) through the opening 10d provided on the-Y direction side of the groove portion 10 a. In addition, the power supply substrate 26 controls light emission of the light emitting element 5.
The FFC7b is disposed on the + X direction side of the mounting member 10 below the 11 th to 20 th light-emitting element substrates 6, and is accommodated in the groove portion 10b formed on the + X direction side of the mounting member 10. The FFC7b has an end portion on the + Y direction side bent in the-Z direction and is electrically connected to the power supply substrate 26 disposed on the rear surface side of the illumination device 3 (mounting member 10) through the opening 10e provided on the + Y direction side of the groove portion 10 b. Similarly, the FFC7b has its end portion on the-Y direction side bent in the-Z direction and is electrically connected to the power supply board 26 disposed on the back side of the illumination device 3 (mounting member 10) through the opening 10f provided on the-Y direction side of the groove portion 10 b.
Fig. 2 is a front view showing a structure of the FFC7a, and fig. 3 is a side view thereof. The FFC7a is composed of a strip-shaped conductor 11 (first conductor, see fig. 5) sandwiched between a cover film 13 (see fig. 5) and a base film 15 (see fig. 6), a cover film 13 as an insulator covering the surface of the conductor 11, and the base film 15 as an insulator covering the back surface of the conductor 11. As shown in fig. 2 and 3, the FFC7a includes a plurality of (10 in the present embodiment) adapters 8 arranged in the Y direction. The 10 adapters 8 correspond to the 1 st to 10 th light emitting element substrates 6 and the 1 st to 10 th connectors 9, respectively, and are arranged at equal intervals in the Y direction. A plane (XY plane) including the longitudinal direction (Y direction) and the width direction (X direction) of the conductor 11 is substantially parallel to the surface of the light emitting element substrate 6, and 10 adapters 8 are respectively fitted to the 1 st to 10 th connectors 9 by receiving the 1 st to 10 th connectors 9 from the + Z direction side (the side of the separating portion 19). The 10 adapters 8 are the 1 st to 10 th adapters 8 in order from the + Y direction side toward the-Y direction side.
The FFC7b has the same configuration as the FFC7a, and 10 adapters provided in the FFC7b correspond to the 11 th to 20 th light-emitting element substrates 6 and the 11 th to 20 th connectors 9, respectively, and are arranged at equal intervals in the Y direction. The configuration of the adapter of FFC7b is the same as that of the adapter 8 of FFC7 a.
Fig. 4 is a view showing the structure of the 1 st adapter 8, fig. 5 is a perspective view thereof, and fig. 6 is an exploded view thereof. As shown in fig. 5, the 1 st adapter 8 includes a first contact portion 17a (see fig. 14) exposed from the cover film 13 to the-Y direction side and a second contact portion 17b exposed from the cover film 13 to the + Y direction side. That is, the first contact portion 17a is the conductor 11 exposed from the cover film 13 on the + Y direction side, the second contact portion 17b is the conductor 11 exposed from the cover film 13 on the-Y direction side, and the first contact portion 17a and the second contact portion 17b are separated by the separation portion 19.
The first contact portion 17a is electrically connected to a first contact 24a (see fig. 7) of the first connector 9, and the second contact portion 17b is electrically connected to a second contact 24b (see fig. 7) different from the first contact 24a of the first connector 9. That is, the FFC7a relays the electrical connection between the first light-emitting element substrate 6 and the power supply substrate 26 by electrically connecting the first contact portion 17a and the first contact 24a, and the second contact portion 17b and the second contact 24 b. The first contact portion 17a and the second contact portion 17b are arranged so as to face away from each other. That is, the FFC7a is bent in a crank shape so that the first contact portion 17a and the second contact portion 17b face away from each other and form a space in which the case 20 is disposed. The first contact portion 17a and the second contact portion 17b are disposed so as to be substantially parallel to the ZX plane, that is, so as to be parallel to a plane along the ZX plane.
Further, a separation portion 19 that separates the first contact portion 17a and the second contact portion 17b is provided between the first contact portion 17a and the second contact portion 17b and on a surface 18 on the + Z direction side formed by being bent in a crank shape. The separating portion 19 separates the first contact portion 17a and the second contact portion 17b by providing a hole in the center portion of the surface 18. That is, the separating portion 19 separates the conductor 11 into a first conductor portion 11a including the first contact portion 17a and a second conductor portion 11b including the second contact portion 17 b. Therefore, the first conductor part 11a and the second conductor part 11b have the same width and thickness, and the first conductor part 11a and the second conductor part 11b are arranged on the same line when viewed from the Z direction. The base films 15 located on the ± X-direction side portions of the surface 18 are connected together without being separated.
Further, a housing 20 is disposed in a space formed between the first contact portion 17a and the second contact portion 17b and bent in a crank shape (a space formed by the first contact portion 17a, the separating portion 19, and the second contact portion 17 b). The housing 20 fixes the first contact portion 17a by fixing the base film 15 positioned on the back surface of the first contact portion 17a to a first holding surface (not shown) on the + Y direction side portion of the housing 20. The housing 20 fixes the second contact portion 17b by fixing the base film 15 positioned on the back surface of the second contact portion 17b to the second holding surface 20a on the-Y direction side portion of the housing 20. In the case 20, the base film 15 on the back surface of the surface 18 is fixed to the third holding surface 20b on the upper surface of the case 20, whereby the first contact portion 17a and the second contact portion 17b are further fixed. Further, the base film 15 is not necessarily fixed to the third holding surface 20 b.
The housing 20 is provided with guide portions 21a and 21b for guiding a fitting position of the first connector 9 when the first adapter 8 is fitted to the first connector 9. The housing 20 and the guide portions 21a and 21b are formed of one member, the guide portion 21a is provided on the + X direction side of the housing 20, and the guide portion 21b is provided on the-X direction side of the housing 20. The guide portions 21a and 21b guide the connection between the first contact 24a and the first contact portion 17a and the connection between the second contact 24b and the second contact portion 17 b. The guide portions 21a and 21b are provided in the housing 20, but may be provided in a member other than the housing 20.
The housing 20 is provided with engaged portions 16a and 16b that are engaged by engaging portions 44a and 44b (see fig. 10) provided in the lock portions 29a and 29b of the first connector 9 when the first adapter 8 is fitted to the first connector 9. The housing 20 and the engaged portions 16a and 16b are formed of one member, the engaged portion 16a is provided on the + X direction side of the housing 20, and the engaged portion 16b is provided on the-X direction side of the housing 20. That is, the engaged portions 16a and 16b are provided in a direction (X direction) intersecting a direction (Y direction) in which the first contact portion 17a and the second contact portion 17b face away from each other. By locking the locked portions 16a, 16b to the locking portions 44a, 44b, the first connector 9 is prevented from being detached from the first adapter 8 when the first contact 24a and the second contact 24b are engaged with the first contact portion 17a and the second contact portion 17 b.
The configuration of the 2 nd to 10 th adapters 8 is the same as that of the 1 st adapter 8, and therefore, the description thereof is omitted.
As shown in fig. 4, the FFC7a includes a fixing portion 23 fixed to the groove portion 10a of the mounting member 10 between the 1 st adapter 8 and the 2 nd adapter 8 adjacent to each other. The FFC7a includes a folded portion (excess length portion) 22a formed by folding back the FFC7a (second conductor portion 11b) twice in the Y direction between the 1 st adapter 8 and the fixing portion 23. The extra length absorbing portion 27 constituted by the folded portion 22a and the fixing portion 23 absorbs the extra length of the FFC7 a. Specifically, the extra length absorbing portion 27 absorbs the extra length of the FFC7a (the second conductor portion 11b) by the extra length of the folded portion 22a when at least one of the 1 st adapter 8 and the 1 st connector 9 is displaced between the end portion on the + Y direction side of the FFC7a connected to and held by the power board 26 and the fixing portion 23.
The FFC7a includes a folded portion 22b formed by folding back the FFC7a (first conductor portion) twice in the Y direction between the fixed portion 23 and the 2 nd adapter 8. The extra length absorbing portion, which is formed by the folded portion 22b, and the fixing portion 23, not shown, provided between the 2 nd adapter 8 and the 3 rd adapter 8, is provided between the fixing portion and the fixing portion 23, not shown, provided between the 2 nd adapter 8 and the 3 rd adapter 8, and when at least one of the 2 nd adapter 8 and the 2 nd connector 9 is displaced, the extra length of the FFC7a (first conductor portion) is absorbed by the extra length of the folded portion 22 b.
Similarly, the FFC7a includes a fixed portion having the same configuration as the fixed portion 23 and a folded portion having the same configuration as the folded portions 22a and 22b between the adapters 8, and when at least one of the 2 nd to 10 th adapters 8 and the 2 nd to 10 th connectors 9 is displaced, the extra length of the FFC7a (at least one of the first conductor portion and the second conductor portion) is absorbed by the extra length absorbing portion constituted by the fixed portion and the folded portion. The folded portions 22a and 22b may be formed by folding 3 times or more in the longitudinal direction (Y direction) of the FFC7 a. In the present embodiment, the folded- back portions 22a and 22b are described as examples of the extra-length portion for making the FFC7a have the extra length, but other means for making the FFC7a have the extra length may be employed. For example, the FFC7a may be folded by bending instead of folding back. In the case where the area for housing the surplus length portion is narrow, it is necessary to fold back and fold the surplus length portion to compactly house the surplus length portion, but the surplus length portion may be provided by bending or the like in the case where the area for housing the surplus length portion is wide.
Next, the structure of the 1 st connector 9 will be explained. Fig. 7 is a perspective view showing the structure of the 1 st connector 9, fig. 8 is a plan view showing the structure of the 1 st connector 9, fig. 9 is a sectional view taken along line a-a of fig. 8, fig. 10 is a sectional view taken along line B-B of fig. 8, and fig. 11 is an exploded view. The 1 st connector 9 is a connector surface-mounted on the 1 st light-emitting element substrate 6, and includes a first contact 24a electrically connected to the first contact portion 17a of the 1 st adapter 8 in a direction (Y direction) intersecting with the mounting surface of the 1 st light-emitting element substrate 6. The 1 st connector 9 further includes a second contact 24b electrically connected to the second contact portion 17b of the 1 st adapter 8 in the Y direction. The first contact 24a and the second contact 24b are arranged to face each other and substantially in parallel, that is, to be parallel to a plane along the ZX plane, and are held by the housing 28. In fig. 11, the configuration of the first contact 24a is the same as the configuration of the second contact 24b that is line-symmetric about the center line of the housing 28 in the X direction, and therefore, the illustration thereof is omitted.
The 1 st connector 9 (the first contact 24a and the second contact 24b) is fitted to the 1 st adapter 8 (the first contact portion 17a and the second contact portion 17b) from the back surface of the light emitting element substrate 6 toward the-Z direction (the surface on the (-Z direction side).
The 1 st connector 9 further includes locking portions 29a and 29b that prevent the 1 st connector 9 (the first contact 24a and the second contact 24b) from being removed from the 1 st adapter 8 when the first contact 24a and the second contact 24b are fitted to the first contact portion 17a and the second contact portion 17b of the 1 st adapter 8. The housing 28 and the lock portions 29a, 29b are formed of one member, the lock portion 29a is provided on the + X direction side of the housing 28, and the lock portion 29b is provided on the-X direction side of the housing 28. That is, the locking portions 29a, 29b are provided in a direction (X direction) intersecting a direction (Y direction) in which the first contacts 24a and the second contacts 24b face each other.
The lock portion 29a includes: an operation portion 43a that is operated when the first and second contacts 24a and 24b are released from engagement with the first and second contact portions 17a and 17; and a locking portion 44a that locks the locked portion 16a of the housing 20 (the member that holds the first contact portion 17a and the second contact portion 17b) while the first contact 24a and the second contact 24b are fitted to the first contact portion 17a and the second contact portion 17 b.
Similarly, the locking portion 29b includes: an operation portion 43b that is operated when the first and second contacts 24a and 24b are released from engagement with the first and second contact portions 17a and 17 b; the locking portion 44b locks the locked portion 16b of the housing 20 while the first contact 24a and the second contact 24b are fitted to the first contact portion 17a and the second contact portion 17 b.
The configuration of the 2 nd to 20 th connectors 9 is the same as that of the 1 st connector 9, and therefore, the description thereof is omitted.
Fig. 12 is a central sectional view from the + X direction showing a state where the first adapter 8 is fitted to the first connector 9, and fig. 13 is a central sectional view from the-Y direction. When the 1 st connector 9 comes into contact with the upper portion (+ Z direction side) of the 1 st adapter 8 from the rear surface of the light emitting element substrate 6 toward the-Z direction, the guide portions 21a, 21b guide the fitting position of the 1 st connector 9, and the upper portion of the 1 st adapter 8 is inserted into the housing 28 of the 1 st connector 9 from the rear surface of the light emitting element substrate 6. When the 1 st adapter 8 is fitted with the 1 st connector 9, as shown in fig. 12, the first contact portion 17a is electrically conducted with the first contact 24a, and the second contact portion 17b is electrically conducted with the second contact 24 b. On the other hand, when the 1 st adapter 8 is fitted to the 1 st connector 9, as shown in fig. 13, the locking portion 44a locks the locked portion 16a, and the locking portion 44b locks the locked portion 16 b. The engaging portion 44a engages with the engaged portion 16a, and the engaging portion 44b engages with the engaged portion 16b, so that the 1 st connector 9 can be prevented from being detached from the first adapter 8.
When the 1 st connector 9 is pulled out from the 1 st adapter 8, the operation portions 43a and 43b are operated. When the operating portion 43a is pressed toward the-X direction side, the elastic portions 45a and 46a connecting the operating portion 43a and the + X direction side wall 28a of the housing 28 become the rotation shafts, and the space between the + X direction side wall 28a and the locking portion 44a is enlarged. Then, the space between the + X-direction side wall 28a and the locking portion 44a is enlarged, so that the locking of the locked portion 16a by the locking portion 44a is released. Similarly, when the operating portion 43b is pressed toward the + X direction side, the elastic portions 45b and 46b connecting the operating portion 43b and the-X direction side wall 28b of the housing 28 become rotation axes, and a space between the-X direction side wall 28b and the locking portion 44b is enlarged. Then, the space between the-X-direction side wall 28b and the locking portion 44b is enlarged, and the locking of the locked portion 16b by the locking portion 44b is released. By releasing the engagement of the engaged portions 16a and 16b by the engaging portions 44a and 44b, the engagement of the first and second contacts 24a and 24b with the first and second contact portions 17a and 17b is released, and the 1 st connector 9 can be detached from the 1 st adapter 8.
Next, the electrical connection of the 1 st to 10 th adapters 8 will be described with reference to a block diagram shown in fig. 14. In fig. 14, the electrical connections of the 1 st, 2 nd and 10 th adapters 8 are illustrated, and the electrical connections of the 3 rd to 9 th adapters 8 are the same as those of the 2 nd adapter 8, and therefore are not illustrated. In the 1 st, 2 nd and 10 th adapters 8, the first contact 24a connected to the first contact portion 17a and the second contact 24b connected to the second contact portion 17b are connected together via the 1 st, 2 nd and 10 th light emitting element substrates 6 by the connecting portion 25, and the light emitting element 5 mounted on the 1 st, 2 nd and 10 th light emitting element substrates 6 is connected to the connecting portion 25. That is, the first contact 24a connected to the first contact portion 17a is electrically connected to the light emitting element 5 and the second contact 24b mounted on the 1 st, 2 nd, and 10 th light emitting element substrates 6 via the connection portion 25. The 3 rd to 9 th adapters 8 also have the same configuration as the 1 st, 2 nd and 10 th adapters 8.
The conductor 11 (the first conductor portion 11a of the 1 st adapter 8) located at one (+ Y direction side) end is connected to the power supply substrate 26. The first conductor portion 11a of the 1 st adapter 8 connected to the power supply board 26 is connected to the first contact 24a of the 1 st connector 9 via the first contact portion 17a formed in the first conductor portion 11 a. As described above, the first contact 24a of the 1 st adapter 8 is connected to the plurality of light emitting elements 5 mounted on the 1 st light emitting element substrate 6 and the second contact 24b of the 1 st connector 9 via the connection portion 25 of the 1 st connector 9. The second contact 24b of the 1 st connector 9 is connected to the conductor 11 (the second conductor portion 11b of the 1 st adapter 8) via the second contact portion 17b of the 1 st adapter 8. Since the second conductor portion 11b of the 1 st adapter 8 is integrated with the first conductor portion 11a of the 2 nd adapter 8 (conductor 11), the second contact portion 17b of the 1 st adapter 8 is electrically connected to the first contact portion 17a of the 2 nd adapter 8. That is, the conductors 11 connecting the second contact portion 17b of the 1 st adapter 8 and the first contact portion 17a of the 2 nd adapter 8 are the second conductor portion 11b of the 1 st adapter 8 and the first conductor portion 11a of the 2 nd adapter 8.
Similarly, the second conductor portion 11b of each of the 2 nd to 9 th adapters 8 and the first conductor portion 11a of each of the 3 rd to 10 th adapters 8 are electrically connected. Then, as described above, the first contact 24a of the 10 th adapter 8 is connected to the light emitting element 5 and the second contact 24b via the connection portion 25, and the second contact 24b of the 10 th adapter 8 is connected to the conductor 11 (second conductor portion 11b) via the second contact portion 17 b. The conductor 11 (the second conductor portion 11b of the 10 th adapter 8) located at the other (-Y direction side) end portion is connected to the power supply substrate 26.
Next, a manufacturing method for manufacturing the FFC7a described above using an FFC manufacturing apparatus or the like will be described. First, the FFC manufacturing apparatus forms an opening in the cover film 13 (opening forming step). The opening is formed to expose the first contact portion 17a and the second contact portion 17b formed of the conductor 11 from the cover film 13. Further, in order to simultaneously manufacture a plurality of (e.g., more than 200) FFCs 7a, the cover film 13 has a width sufficient to cover the plurality of conductors 11, and the FFC manufacturing apparatus forms at least as many openings in the cover film 13 as the number of adapters 8 mounted to the FFC7 a.
Next, the FFC manufacturing apparatus attaches the cover film 13 to the surface of the conductor 11 and attaches the base film 15 to the back surface of the conductor 11 in a state where the strip-shaped conductor 11, the cover film 13, and the base film 15 are stretched in the longitudinal direction of the conductor 11 (attaching step). Specifically, the plurality of conductors 11 are arranged in parallel in the width direction of the cover film 13 and the base film 15, and the plurality of conductors 11 are sandwiched between the cover film 13 and the base film 15. Then, tension is applied to the conductor 11, the cover film 13, and the base film 15, the adhesive on the inner sides of the cover film 13 and the base film 15 is melted, and the cover film 13 and the base film 15 are laminated while sandwiching the conductor 11.
Next, the FFC manufacturing apparatus separates the conductor 11 exposed from the opening into the first conductor part 11a and the second conductor part 11b by forming a hole smaller than the opening in the opening formed in the opening forming step (conductor portion separating step). Specifically, a hole is formed as a separation portion 19 that separates the first conductor portion 11a and the second conductor portion 11b, and the conductor 11 is cut by the separation portion 19.
Next, the FFC manufacturing apparatus forms an extra length portion that makes the FFC7a (conductor 11) have an extra length. Specifically, the first conductor part 11a and the second conductor part 11b are bent in a crank shape so that the first connection part 17a formed of the first conductor part 11a exposed from the opening and the second connection part 17b formed of the second conductor part 11b exposed from the opening face away from each other, and the case 20 is disposed between the first connection part 17a and the second connection part 17b (case disposing step). Then, in the FFC manufacturing apparatus, the first contact portion 17a is fixed to the first holding surface of the case 20, and the second contact portion 17b is fixed to the second holding surface 20a of the case 20 (fixing step), and preferably, the adapter 8 is formed by fixing the space between the first contact portion 17a and the second contact portion 17b to the third holding surface 20 b. The adapter 8 is continuously formed in the length direction of the FFC7 a.
Next, the FFC manufacturing apparatus forms the folded- back portions 22a and 22b as the extra length absorbing portion 27 that absorbs the extra length of the FFC7a (conductor 11) by folding back the FFC7a (conductor 11) at least twice between the adjacent adapters 8 (folded-back portion forming step). The folded portion forming step may be performed in any step from after the attaching step to before the fixing step.
Next, a manufacturing method for manufacturing the above-described illumination device 3 will be described using a liquid crystal backlight manufacturing apparatus or the like. First, the liquid crystal backlight manufacturing apparatus forms the grooves 10a and 10b and the openings 10c to 10f in the mounting member 10 (groove forming step). Next, the liquid crystal backlight manufacturing apparatus positions the insulators 20 attached to the FFCs 7a, 7b with respect to the grooves 10a, 10b of the mounting member 10, and attaches the FFCs 7a, 7b to the grooves 10a, 10b of the mounting member 10 (FFC attachment step).
Next, the light-emitting element 5 and the connector 9 are mounted on the light-emitting element substrate 6 using a mounting machine or the like (mounting step). That is, the 1 st to 20 th connectors and the five light emitting elements 5 are mounted on the 1 st to 20 th light emitting element substrates 6, respectively. The mounting step may be performed before or simultaneously with the groove forming step or the FFC mounting step.
Next, the liquid crystal backlight manufacturing apparatus mounts the 1 st to 20 th light emitting element substrates 6 at predetermined positions of the mounting member 10, and simultaneously fits the 1 st to 10 th adapters 8 with the 1 st to 10 th connectors 9 and the 10 adapters of the FFC7b with the 11 th to 20 th connectors 9, respectively (fitting step). Then, the liquid crystal backlight manufacturing apparatus connects the first conductor part 11a of the 1 st adapter 8 located at one end and the first conductor part of the adapter of the FFC7b located at one end to the power supply substrate 26, and connects the second conductor part 11b of the 10 th adapter 8 located at the other end and the second conductor part of the adapter of the FFC7b located at the other end to the power supply substrate 26 (connecting step). The connection step may be performed after or during the FFC mounting step.
According to the adapter 8, the FFCs 7a, 7b, the connector 9, the lighting device 3, the FFC manufacturing method, and the lighting device manufacturing method of the first embodiment, for example, automatic assembly by a robot or the like, easy assembly of automatic wiring, and easy wiring can be realized. Further, since the FFC can be used instead of the substrate, cost reduction can be achieved.
In the above embodiment, the case where the conductor 11 of the FFC7a is separated into the first conductor part 11a and the second conductor part 11b by the separation part 19 using one FFC7a has been described as an example, but two FFCs (a first FFC and a second FFC) may be used. That is, a first FFC having a first conductor portion sandwiched between a first cover film and a first base film and a second FFC having a second conductor portion sandwiched between a second cover film and a second base film may be used. The first conductor portion and the second conductor portion are formed of different members, the first cover film and the second cover film are also formed of different members, and the first base film and the second base film are also formed of different members. In this case, the first conductor portion and the second conductor portion are arranged substantially on the same line when viewed from the Z direction, with the widths and thicknesses of the first conductor portion and the second conductor portion being substantially the same. Since the first conductor part and the second conductor part are different members, they are separated from each other even if the separation part 19 is not provided.
In the above-described embodiment, the FFCs 7a and 7b having one conductor 11 have been described as an example, but an FFC having two or more conductors may be used. In this case, the conductors other than the conductor 11 are arranged substantially parallel to the conductor 11 (in the longitudinal direction of the conductor 11), but the width and thickness of the conductor 11 and the conductors other than the conductor 11 do not have to be the same.
In the above-described embodiment, the case where the FFC7a has one conductor 11 and the power supply board 26 collectively controls the light emission of the light-emitting elements 5 mounted on the 1 st to 10 th light-emitting element boards 6 has been described as an example, but the FFC may have two or more conductors and the control boards (power supply boards) may control the light emission of the light-emitting elements individually. For example, when the FFC includes the same number of conductors as the number of light-emitting element substrates (10 in the case of the above-described embodiment), control can be performed for each light-emitting element substrate.
Fig. 15 is a diagram showing a configuration of an FFC having four conductors. The FFC32 includes four strip-shaped conductors 50 to 53, a cover film 34 covering the surfaces of the four conductors 50 to 53, and a base film (not shown) covering the back surfaces of the four conductors 50 to 53, and includes four adapters 35a to 35 d. The four adapters 35a to 35d are arranged at equal intervals in the Y direction, respectively, and are fitted to a connector (not shown). The adapters 35a to 35d need not be arranged at equal intervals. Each connector is attached to four light-emitting element substrates 6 having the same configuration as the light-emitting element substrate 6 (see fig. 17). In fig. 15, the portions of the conductors 50 to 53 shown by broken lines are covered with the cover film 34 and the base film. The FFC32 includes the same folded portions and fixed portions as the folded portions 22a and 22b and the fixed portion 23, but the illustration thereof is omitted in fig. 15.
The adapter 35a includes a first contact portion 37a (see fig. 16) formed of the conductor 50 exposed from the cover film 34 to the + Y direction side and a second contact portion 39a (see fig. 16) formed of the conductor 50 exposed from the cover film 34 to the-Y direction side. The first contact portion 37a and the second contact portion 39a are separated by the separation portion 36a, and the separation portion 36a separates the conductor 50 into a first conductor portion 50a including the first contact portion 37a and a second conductor portion 50b including the second contact portion 39 a. On the other hand, the conductors 51, 52, 53 (the third conductor portions 51a, 52a, 53a and the fourth conductor portions 51b, 52b, 53b) are not separated. That is, the third conductor portions 51a, 52a, 53a and the fourth conductor portions 51b, 52b, 53b are formed of one member and are not separated by the adapter 35 a. In addition, the third conductor portions 51a, 52a, and 53a and the fourth conductor portions 51b, 52b, and 53b are covered with the covering film 34, but may be exposed from the covering film 34.
The adapter 35b includes a first contact portion 37b (see fig. 16) formed of the conductor 51 exposed from the cover film 34 to the + Y direction side and a second contact portion 39b (see fig. 16) formed of the conductor 51 exposed from the cover film 34 to the-Y direction side. The first contact portion 37b and the second contact portion 39b of the adapter 35b are separated by the separation portion 36b, and the separation portion 36b separates the conductor 51 into a first conductor portion 51c including the first contact portion 37b and a second conductor portion 51d including the second contact portion 39 b. On the other hand, the conductors 50, 52, 53 (the third conductor portions 50c, 52c, 53c and the fourth conductor portions 50d, 52d, 53d) are not separated. That is, the third conductor portions 50c, 52c, and 53c and the fourth conductor portions 50d, 52d, and 53d are formed of one member and are not separated by the adapter 35 b. In addition, the third conductor portions 50c, 52c, and 53c and the fourth conductor portions 50d, 52d, and 53d are all covered with the cover film 34, but may be exposed from the cover film 34.
The adapter 35c includes a first contact portion 37c (see fig. 16) formed of the conductor 52 exposed from the cover film 34 to the + Y direction side and a second contact portion 39c (see fig. 16) formed of the conductor 52 exposed from the cover film 34 to the-Y direction side. The first contact portion 37c and the second contact portion 39c of the adapter 35c are separated by the separation portion 36c, and the separation portion 36c separates the conductor 52 into a first conductor portion 52e including the first contact portion 37c and a second conductor portion 52f including the second contact portion 39 c. On the other hand, the conductors 50, 51, 53 (the third conductor portions 50e, 51e, 53e and the fourth conductor portions 50f, 51f, 53f) are not separated. That is, the third conductor portions 50e, 51e, and 53e and the fourth conductor portions 50f, 51f, and 53f are formed of one member and are not separated by the adapter 35 c. In addition, the third conductor portions 50e, 51e, and 53e and the fourth conductor portions 50f, 51f, and 53f are all covered with the cover film 34, but may be exposed from the cover film 34.
The adapter 35d includes a first contact portion 37d (see fig. 16) formed of the conductor 53 exposed from the cover film 34 to the + Y direction side and a second contact portion 39d (see fig. 16) formed of the conductor 53 exposed from the cover film 34 to the-Y direction side. The first contact portion 37d and the second contact portion 39d of the adapter 35d are separated by the separation portion 36d, and the separation portion 36d separates the conductor 53 into a first conductor portion 53g including the first contact portion 37d and a second conductor portion 53h including the second contact portion 39 d. On the other hand, the conductors 50, 51, 52 (the third conductor portions 50g, 51g, 52g and the fourth conductor portions 50h, 51h, 52h) are not separated. That is, the third conductor portions 50g, 51g, and 52g and the fourth conductor portions 50h, 51h, and 52h are formed of one member and are not separated by the adapter 35 c. In addition, the third conductor portions 50g, 51g, and 52g and the fourth conductor portions 50h, 51h, and 52h are all covered with the cover film 34, but may be exposed from the cover film 34.
Fig. 16 is a diagram for explaining the electrical connection of the adapters 35a to 35d, fig. 17 is a diagram showing a routing structure of a light emitting element substrate on which a connector connected to the adapter 35a is mounted, fig. 18 is an enlarged view of a part surrounded by a circle E shown in fig. 17, and is an enlarged view showing a routing structure of a light emitting element substrate on which a connector connected to an adapter of another embodiment is mounted. The conductor 50 (first conductor portion 50a) connected to the control board 42 that controls light emission of the light emitting elements 5a to 5d is connected to the first contact 38a of the connector fitted to the adapter 35a via the first contact portion 37a formed in the first conductor portion 50 a. The light emitting elements 5a, 5b, 5c, and 5d have the same configuration. The first contact 38a is coupled to the second contact 40a of the connector fitted to the adapter 35a via the coupling portion 41a, and the light emitting element 5a is connected to the coupling portion 41 a. The connection portion 41a connects the first contact 38a, the light-emitting element 5a, and the second contact 40a via the input pad 12a, the circuit pattern 14a, and the output pad 30a formed on the light-emitting element substrate (circuit substrate) 6. One end of the circuit pattern 14a is connected in parallel to the input pads 12a to 12d, and the other end of the circuit pattern 14a is connected in parallel to the output pads 30a to 30 d. The second contact 40a is connected to the conductor 50 (second conductor portion 50b) via a second contact portion 39a formed in the second conductor portion 50 b. The conductor 50 is connected to the control board 42 via the adapters 35b to 35d (not connected to the light emitting elements 5b to 5 d). In fig. 18, the coupling portion 41a (fig. 16) is shared by portions drawn out from the input pads 12a to which the first contacts 38a are attached, and the first contact portion 37a (the first conductor portion 50a in fig. 15) in fig. 16 is in contact with the first contact 38a and is connected to the coupling portion 41a via the input pad 30 a. Similarly, in a state where the first contact portion 37b (the first conductor portion 51c in fig. 15) is in contact with the first contact 38b, the third conductor portions 50c, 52c, and 53c are in a non-conductive state, and only the first contact 38b is electrically connected to the connection portion 41b from the common input pad. The connector mounted on the light emitting element substrate 6 has a first contact row solder-bonded to the first contact and a second contact row solder-bonded to the second contact, and the rows are connected in common.
That is, the first contact portions 37a to 37d are electrically connected to the second contact portions 39a to 39d, respectively, via the light-emitting element substrate 6. On the other hand, the first contact portion 37a and the second contact portion are not electrically connected to form the circuit shown in fig. 16. Therefore, the control board 42 can control only the light emitting elements 5a to emit light.
The conductor 51 connected to the control board 42 is connected to the first contact 38b of the connector fitted to the adapter 35b via the first contact portion 37b formed on the first conductor portion 51c by the adapter 35a (not connected to the light-emitting element 5 a). The first contact 38b is coupled to the second contact 40b of the connector fitted with the coupling portion 41b and the adapter 35b, and the light emitting element 5b is connected to the coupling portion 41 b. The second contact 40b is connected to the conductor 51 via a second contact portion 39b formed in the second conductor portion 51 d. The conductor 51 is connected to the control board 42 via the adapters 35c and 35d (not connected to the light emitting elements 5c and 5 d). Therefore, the control board 42 can control only the light emitting elements 5b to emit light.
The conductor 52 connected to the control board 42 is connected to the first contact 38c of the connector fitted to the adapter 35c via the first contact portion 37c formed in the first conductor portion 52e by the adapters 35a and 35b (not connected to the light emitting elements 5a and 5 b). The first contact 38c is connected to the second contact 40c of the connector fitted to the adapter 35c by the connection portion 41c, and the light emitting element 5c is connected to the connection portion 41 c. The second contact 40c is connected to the conductor 52 via a second contact portion 39c formed in the second conductor portion 52 f. The conductor 52 is connected to the control board 42 via the adapter 35d (not connected to the light emitting element 5 d). Therefore, the control board 42 can control only the light emitting elements 5c to emit light.
The conductor 53 connected to the control board 42 is connected to the first contact 38d of the connector fitted to the adapter 35d via the first contact portion 37d formed in the first conductor portion 53g by the adapters 35a to 35c (not connected to the light emitting elements 5a to 5 c). The first contact 38d is connected to the second contact 40d of the connector fitted to the adapter 35d via the connection portion 41d, and the light emitting element 5d is connected to the connection portion 41 d. The second contact 40d is connected to the conductor 53 via a second contact portion 39d formed in the second conductor portion 53h, and the conductor 53 is connected to the control board 42. Therefore, the control board 42 can control only the light emitting elements 5d to emit light.
The adapters 35a to 35d may include, in addition to the separating portions 36a to 36d, a second separating portion that separates at least one of the third conductor portions 51a, 52a, 53a, 50c, 52c, 53c, 50e, 51e, 53e, 51g, 52g, 53g and the fourth conductor portions 51b, 52b, 53b, 50d, 52d, 53d, 50f, 51f, 53f, 51h, 52h, 53 h. For example, when the adapter 35a includes a second separating portion that separates the third conductor portion 51a and the fourth conductor portion 51b, the third contact portion is provided in the third conductor portion 51a, the fourth contact portion is provided in the fourth conductor portion 51b, and the third contact connected to the third contact portion, the fourth contact connected to the fourth connecting portion, and the second connecting portion that connects the third contact and the fourth contact are provided. The light emitting elements 5a mounted on the light emitting element substrate 6 are divided into a first group connected to the first contact 38a and the second contact 40a via the connecting portion 41a and a second group connected to the third contact and the fourth contact via the second connecting portion. The control board 42 can perform light emission control only for the light emitting elements 5a belonging to the first group or the light emitting elements 5a belonging to the second group.
In the method for manufacturing the FFC according to the above embodiment, the conductor 11 is separated after the bonding step and before the case arranging step, but the conductor 11 may be separated after the case arranging step or after the fixing step. In the case where the conductor portion separating step is performed after the housing disposing step or after the fixing step, the through-hole 20c (see fig. 6) needs to be provided in the surface on the + Z direction side of the housing 20. In the case where the conductor portion separating step is performed after the case arranging step, an opening is formed in the cover film 13 (opening forming step), the cover film 13 and the base film 15 are bonded with the conductor 11 sandwiched therebetween (attaching step), the conductor 11 is bent in a crank shape, the case 20 is arranged between the first contact portion 17a and the second contact portion 17b (case arranging step), the conductor 11 is separated into the first conductor portion 11a and the second conductor portion 11b (conductor portion separating step), the first contact portion 17a is fixed to the first holding surface of the case 20, and the second contact portion 17b is fixed to the second holding surface 20a of the case 20 (fixing step). When the conductor portion separating step is performed after the fixing step, an opening is formed in the cover film 13 (opening forming step), the cover film 13 is bonded to the base film 15 with the conductor 11 sandwiched therebetween (attaching step), the conductor 11 is bent in a crank shape, the case 20 is disposed between the first contact portion 17a and the second contact portion 17b (insulator disposing step), the first contact portion 17a is fixed to a first holding surface of the case 20, the second contact portion 17b is fixed to a second holding surface 20a of the case 20 (fixing step), and the conductor 11 is separated into the first conductor portion 11a and the second conductor portion 11b (conductor portion separating step).
In the above embodiment, the case where the cover film 13 and the base film 15 are not separated by the separating portion 19 has been described as an example, but at least the base film 15 may be not separated. That is, the separating section 19 may separate the cover film 13 without separating the base film 15.
Next, a lighting device (backlight device) according to a second embodiment of the present invention, and mainly a wiring structure of the lighting device will be described with reference to the drawings. Fig. 19 is a front view showing the configuration of the illumination device according to the second embodiment, and is a diagram for explaining a wiring structure of the illumination device. The lighting device of the second embodiment has a two-core circuit configuration (composed of two cores) as shown in the block diagram of fig. 14. As shown in fig. 19, the lighting device 31 of the second embodiment includes a plurality of light-emitting elements (LEDs) 5, a plurality of light-emitting element substrates 6 on which the light-emitting elements 5 are mounted, an FFC7, a plurality of connectors 9 '(see fig. 23 to 26), and a mounting member 10' on which the light-emitting element substrates 6 and the FFC7 are mounted.
Fig. 20 is a perspective view showing the configuration of an FFC7 according to the second embodiment. Fig. 21 is an enlarged view of a member surrounded by a circle a shown in fig. 20, and shows the configuration of the adapter 35' and the terminal structure (bridge portion) 48. As shown in fig. 21, the FFC7 is of the two-core type and is bridged at one end. The configuration of the first conductor 33 of the FFC7 (adapter 35') is the same as the configuration of the conductor 11 shown in fig. 5. Since the second conductor 47 of the FFC7 does not have the separating portion 19, the first contact portion 17a and the second contact portion 17b separated by the separating portion 19 are not provided. As shown in fig. 21, one end of the FFC7 has a terminal structure (bridge portion) 48, and the terminal structure 48 connects the first conductor 33 having the split portion 19 and the second conductor 47 not having the split portion 19. That is, the second conductor 47 has a wiring function (between the second contact portion 17b and the power supply substrate 26 shown in fig. 14) that does not require contact with the connector 9' and is connected to the first conductor 33 having the separation portion 19.
The other end of the FFC7 is connected to, for example, a power supply board, not shown, disposed on the back surface side of the mounting component 10'. That is, the other end of the first conductor 33 and the other end of the second conductor 47 (the end not connected by the terminal structure 48) are connected to the power supply substrate.
Fig. 22 is a diagram showing a structure of the housing 20 constituting the adapter 35'. The housing 20 has the same configuration as the housing 20 shown in fig. 5. Fig. 23 is a view showing the structure of the light emitting element substrate 6, fig. 24 and 25 are perspective views showing the structure of a connector 9 'attached to the light emitting element substrate 6, and fig. 26 is an exploded view showing the structure of the connector 9'. The connector 9 ' includes two first contacts 49a and 49b, two second contacts 54a and 54b, and a housing 28 ', and the configuration of the connector 9 ' other than the number of the first and second contacts is the same as that of the connector 9 shown in fig. 11. Fig. 27 and 28 are cross-sectional views showing a state in which the adapter 35 'is fitted to the connector 9', fig. 27 is a cross-sectional view in the width direction of the light-emitting element substrate 6, and fig. 28 is a cross-sectional view in the width direction of the FFC 7.
As described above, the power supply board and the first conductor 33 are connected, and the first contact portion 17a of the first conductor 33 and the first contact 24a of the first connector 9' are connected together. Then, the first contact 24a of the first connector 9 'and the second contact 54a of the first connector 9' are connected together via each light emitting element 5 mounted on the first light emitting element substrate 6. Then, the second contact 54a of the first connector 9' and the first second contact portion 17b of the first conductor 33 are connected together. Further, the 2 nd to 10 th first contact portions 17a of the first conductor 33, the first contacts 24a of the 2 nd to 10 th connectors 9 ', the light emitting elements 5 mounted on the 2 nd to 10 th light emitting element substrates 6, the second contacts 54a of the 2 nd to 10 th connectors 9', and the 2 nd to 10 th second contact portions 17b of the first conductor 33 are also connected in this order in the same manner. Then, the first conductor 33 and the terminal structure 48 are connected, the terminal structure 48 and the second conductor 47 are connected, and the second conductor 47 and the power supply board are connected.
Next, a lighting device (backlight device) according to a third embodiment of the present invention, and mainly a wiring structure of the lighting device will be described with reference to the drawings. Fig. 29 is a front view showing the configuration of the illumination device according to the third embodiment, and is a diagram for explaining a wiring structure of the illumination device. The lighting device of the third embodiment is configured by folding back the circuit configuration of one core (configured by one core) shown in the block diagram of fig. 14. As shown in fig. 29, the lighting device 31 ' of the third embodiment includes a plurality of light-emitting elements (LEDs) 5, a plurality of light-emitting element substrates 6 on which the light-emitting elements 5 are mounted, an FFC7 ', a plurality of connectors 9 (see fig. 35 to 37), a mounting member 10 ' on which the light-emitting element substrates 6 and the FFC7 ' are mounted, and a power supply substrate 26 (see fig. 38) disposed on the rear surface side of the mounting member 10 '.
Fig. 30 is a perspective view showing the structure of an FFC 7' according to the third embodiment. Fig. 31 is an enlarged view showing a part surrounded by a circle B shown in fig. 30. Fig. 32 is an enlarged view showing a part surrounded by a circle C shown in fig. 30. The FFC 7' is a core type FFC, and is folded back at one end as shown in fig. 31, and the folded-back side has a wiring function (between the second contact portion 17b and the power supply substrate 26 shown in fig. 14) that does not require contact with the connector 9. That is, one end of the FFC7 ' is attached to one side surface of the adapter 55 (see fig. 32), and 10 adapters 35 are attached at equal intervals from one end of the FFC7 ' to the middle of the FFC7 ' (see fig. 30). The FFC7 'is folded back in the middle (see fig. 31), and the back surface from one end to the middle of the FFC 7' overlaps the back surface from the middle to the other end of the FFC7 'so as to face each other, and the other end of the FFC 7' is attached to the other side surface of the adapter 55 (see fig. 32). The adapter 35 is fitted to the connector 9 from above the connector 9 with respect to the mounting surface of the mounting member 10'. The structure of the adapter 35 is the same as that of the adapter 8 (see fig. 5) of the first embodiment.
Fig. 33 is a diagram showing a structure of an adapter 35 (housing 20') according to the third embodiment. The housing 20' has the same configuration as the housing 20 shown in fig. 5. Fig. 34 is a diagram showing a configuration of the adapter 55 attached to an end of the FFC 7' according to the third embodiment. The structure and function of the adapter 55 will be described later.
Fig. 35 is a diagram showing a structure of the light-emitting element substrate (LED substrate) 6, fig. 36 is a diagram showing a structure of the connector 9 mounted on the light-emitting element substrate 6, and fig. 37 is an exploded view showing a structure of the connector 9. As shown in fig. 35 to 37, the connector 9 is a connector of a top fitting type, and the configuration other than the top fitting has the same configuration as the connector 9 of the first embodiment (fitting from below, see fig. 7).
Fig. 38 to 42 show a fitting view and a view of the connector 9 on the side of the power supply substrate 26 of the one-core-folded type. Fig. 38 is a diagram showing a structure of a portion where the connector 9 attached to the power supply board 26 is fitted to the adapter 55 attached to the end of the FFC 7'. The light-emitting element substrate 6 and the FFC7 ' are disposed on the front surface side of the mounting member 10 ', while the power supply substrate 26 is disposed on the rear surface side of the mounting member 10 ' as described above. As shown in fig. 38, both end portions of the FFC7 ' and the adapter 55 are connected to the connector 9 mounted on the power board 26 through an opening 10c ' provided in the mounting member 10 '. Fig. 39 is a diagram showing a structure of the connector 9 mounted on the power supply board 26, and fig. 40 is an exploded view showing the structure of the connector 9. Fig. 41 is a sectional view showing a state in which the adapter 35 is fitted to the connector 9 attached to the light-emitting element substrate 6, and fig. 42 is a sectional view showing a state in which the connector 9 attached to the power supply substrate 26 is fitted to the adapter 55 attached to the end of the FFC 7'.
As shown in fig. 38 and 42, the power supply board 26 side sandwiches an adapter (resin member or plate) 55 between the upper and lower FFCs 7', and the adapter 55 is inserted into the connector 9 in the lateral direction. As shown in fig. 39 and 41, the adapter 35 and the connector 9 mounted on the light emitting element substrate 6 are fitted in a state in which the vertical relationship is reversed, unlike the other embodiments described above. That is, the light emitting element substrate 6 on which the connector 9 is mounted is first disposed on the mounting member 10 ', and then the FFC7 ' is mounted on the mounting member 10 '. When or after the FFC7 'is attached to the attachment member 10', the adapter 35 disposed on the upper portion of the connector 9 is pressed from above against the connector 9, whereby the connector 9 and the adapter 35 are fitted to each other.
Next, a wiring structure according to a fourth embodiment of the present invention, particularly a wiring structure used in a lighting device (backlight device) will be described with reference to fig. 43 to 47. The wiring structure 56 shown in fig. 43 is a wiring structure divided into H direction 2 and V direction 4. Fig. 43 is a diagram showing a configuration of a wiring structure 56 according to the fourth embodiment. As shown in fig. 43, the wiring structure 56 includes a plurality of light emitting elements (LEDs) 5a to 5h, a plurality of light emitting element substrates 6a to 6d on which the light emitting elements 5a to 5h are mounted, an FFC1, and a plurality of connectors 2 (see fig. 50). Fig. 44 is a diagram showing a configuration of an FFC1 according to the fourth embodiment, fig. 45 is a block diagram for explaining electrical connection of an FFC1, fig. 46 is a diagram showing a routing structure of a light-emitting element substrate 6 on which a connector 2 connected to the FFC1 is mounted, fig. 47 is an enlarged view of a member surrounded by a circle D shown in fig. 46, and is an enlarged view showing a routing structure of a light-emitting element substrate 6 on which a connector 2 connected to the FFC1 is mounted.
As shown in fig. 43 and 46, the light-emitting element substrate 6a on which the light-emitting elements 5a and 5b shown in fig. 43 are mounted is divided into two circuit blocks including a circuit block including three light-emitting elements 5a and a circuit block including three light-emitting elements 5 b. Therefore, in the present embodiment, four light-emitting element substrates 6a to 6d are provided, and thus the entire circuit block is divided into eight circuit blocks. As shown in fig. 46 and 47, the light-emitting element substrate 6a is provided with four first input pads 58a to 58d, four second input pads 59a to 59d, four first output pads 60a to 60d, and four second output pads 61a to 61 d. The first input pads 58a to 58d and the second input pads 59a to 59d are arranged in parallel in the order of the first input pad 58a, the second input pad 59a, the first input pad 58b, the second input pad 59b, the first input pad 58c, the second input pad 59c, the first input pad 58d, and the second input pad 59 d. Similarly, the first output pads 60a to 60d and the second output pads 61a to 61d are arranged in parallel in the order of the first output pad 60a, the second output pad 61a, the first output pad 60b, the second output pad 61b, the first output pad 60c, the second output pad 61c, the first output pad 60d, and the second output pad 61 d.
Further, a first circuit pattern 62 connected to the light emitting element 5a and a second circuit pattern 63 connected to the light emitting element 5b are formed on the light emitting element substrate 6 a. One end of the first circuit pattern 62 is connected in parallel to the first input pads 58a to 58d, respectively, and the other end of the first circuit pattern 62 is connected in parallel to the first output pads 60a to 60d, respectively. One end of the second circuit pattern 63 is connected in parallel to the second input pads 59a to 59d, respectively, and the other end of the second circuit pattern 63 is connected in parallel to the second output pads 61a to 61d, respectively. The first circuit pattern 62 is connected to the light emitting element 5a and is formed in a ring shape within the surface of the light emitting element substrate 6 a. The second circuit pattern 63 is connected to the light emitting element 5b and formed in a ring shape within the surface of the light emitting element substrate 6 a. The second circuit pattern 63 is led to the outside of the first circuit pattern 62. The light emitting elements 5c to 5h have the same configuration as the light emitting elements 5a and 5 b. Since the light-emitting element substrates 6b to 6d have the same configuration as the light-emitting element substrate 6a, the same components are denoted by the same reference numerals, and descriptions thereof are omitted.
The connectors 2 are mounted on the light emitting element substrates 6a to 6d, respectively. Fig. 50 is a perspective view showing the structure of the connector 2. As shown in fig. 45 and 50, the connector 2 includes eight first contacts 38a to 38h and eight second contacts 40a to 40 h. The first contacts 38a of the respective connectors 2 are surface-mounted (SMT-mounted) on the first input pads 58a of the light-emitting element substrates 6a to 6d, respectively, and are electrically connected. Similarly, the first contact 38b, the first contact 38c, the first contact 38d, the first input pad 58b, the first input pad 58c, the first input pad 59b, the first contact 38e, the first input pad 58c, the first contact 38f, the first input pad 58d, the first contact 38g, and the second input pad 59d of the light-emitting element substrates 6a to 6d are surface-mounted and electrically connected to each other. The second contacts 40a of the light-emitting element substrates 6a to 6d are surface-mounted (SMT-mounted) and electrically connected to the first output pads 60 a. Similarly, the second contact 40b, the second contact 40c, the second contact 40d, the second output pad 60c, the first output pad 61b, the second contact 40d, the first output pad 60c, the second contact 40f, the second output pad 61c, the first output pad 60d, the second contact 40g, and the second output pad 61d of the light-emitting element substrates 6a to 6d are surface-mounted on the second output pad 61a, the second contact 40d, the second contact 40h, and the second output pad 61d are electrically connected to each other.
The FFC1 is composed of eight strip-shaped conductors (not shown) sandwiched between a cover film 13 (see fig. 51) and an undercoat film (not shown), the cover film 13 serving as an insulator covering the surfaces of the eight conductors, and the undercoat film serving as an insulator covering the back surfaces of the eight conductors. As shown in fig. 44, the FFC1 includes four adapters 57a to 57d that are respectively fitted to the connectors 2 mounted on the light-emitting element substrates 6a to 6 d. Fig. 51 is a perspective view showing the structure of the adapter 57 a. The adapter 57a is fitted to the connector 2 mounted on the light emitting element substrate 6a by receiving the connector 2 from below. The adapter 57a includes a first contact portion 37a and a second contact portion 39a (see fig. 45) in which a first conductor is exposed from the cover film 13 of the FFC1, and a first contact portion 37b and a second contact portion 39b (see fig. 45) in which a second conductor is exposed from the cover film 13. The first contact portion 37a and the second contact portion 39a are separated by the separation portion 19 a. That is, the separating portion 19a separates the first conductor between the first contact portion 37a and the second contact portion 39 a. The first contact portion 37b and the second contact portion 39b are separated by the separation portion 19 b. That is, the separating portion 19b separates the second conductor between the first contact portion 37b and the second contact portion 39 b.
When the adapter 57a is fitted to the connector 2 mounted on the light-emitting element substrate 6a, the first contact portion 37a is electrically connected to the first contact 38a (see fig. 45) of the connector 2 mounted on the light-emitting element substrate 6a, and the second contact portion 39a is electrically connected to the second contact 40a (see fig. 45) of the connector 2 mounted on the light-emitting element substrate 6 a. Similarly, the first contact portion 37b is electrically connected to a first contact 38b (see fig. 45) of the connector 2 mounted on the light-emitting element substrate 6a, and the second contact portion 39b is electrically connected to a second contact 40b (see fig. 45) of the connector 2 mounted on the light-emitting element substrate 6 a.
The adapter 57b is fitted to the connector 2 by receiving the connector 2 mounted on the light emitting element substrate 6b from below. The adapter 57b includes a first contact portion 37c and a second contact portion 39c (see fig. 45) in which the third conductor is exposed from the cover film 13 of the FFC1, and a first contact portion 37d and a second contact portion 39d (see fig. 45) in which the fourth conductor is exposed from the cover film 13. The first contact portion 37c and the second contact portion 39c are separated by the separation portion 19 c. That is, the separating portion 19c separates the third conductor between the first contact portion 37c and the second contact portion 39 c. The first contact portion 37d and the second contact portion 39d are separated by the separation portion 19 d. That is, the separating portion 19d separates the fourth conductor between the first contact portion 37d and the second contact portion 39 d.
When the adapter 57b is fitted to the connector 2 mounted on the light-emitting element substrate 6b, the first contact portion 37c is electrically connected to the first contact 38c (see fig. 45) of the connector 2 mounted on the light-emitting element substrate 6b, and the second contact portion 39c is electrically connected to the second contact 40c (see fig. 45) of the connector 2 mounted on the light-emitting element substrate 6 b. Similarly, the first contact portion 37d is electrically connected to a first contact 38d (see fig. 45) of the connector 2 mounted on the light-emitting element substrate 6b, and the second contact portion 39d is electrically connected to a second contact 40d (see fig. 45) of the connector 2 mounted on the light-emitting element substrate 6 b.
The adapter 57c is fitted to the connector 2 by receiving the connector 2 mounted on the light emitting element substrate 6c from below. The adapter 57c includes a first contact portion 37e and a second contact portion 39e (see fig. 45) in which the fifth conductor is exposed from the cover film 13 of the FFC1, and a first contact portion 37f and a second contact portion 39f (see fig. 45) in which the sixth conductor is exposed from the cover film 13. The first contact portion 37e and the second contact portion 39e are separated by the separation portion 19 e. The first contact portion 37f and the second contact portion 39f are separated by the separation portion 19 f.
When the adapter 57c is fitted to the connector 2 mounted on the light-emitting element substrate 6c, the first contact portion 37e is electrically connected to the first contact 38e (see fig. 45) of the connector 2 mounted on the light-emitting element substrate 6c, and the second contact portion 39e is electrically connected to the second contact 40e (see fig. 45) of the connector 2 mounted on the light-emitting element substrate 6 c. Similarly, the first contact portion 37f is electrically connected to a first contact 38f (see fig. 45) of the connector 2 mounted on the light-emitting element substrate 6c, and the second contact portion 39f is electrically connected to a second contact 40f (see fig. 45) of the connector 2 mounted on the light-emitting element substrate 6 c.
The adapter 57d is fitted to the connector 2 by receiving the connector 2 mounted on the light emitting element substrate 6d from below. The adapter 57d includes a first contact portion 37g and a second contact portion 39g (see fig. 45) in which the seventh conductor is exposed from the cover film 13 of the FFC1, and a first contact portion 37h and a second contact portion 39h (see fig. 45) in which the eighth conductor is exposed from the cover film 13. The first contact portion 37g and the second contact portion 39g are separated by the separation portion 19 g. The first contact portion 37h and the second contact portion 39h are separated by the separation portion 19 h.
When the adapter 57d is fitted to the connector 2 mounted on the light-emitting element substrate 6d, the first contact portion 37g is electrically connected to the first contact 38g (see fig. 45) of the connector 2 mounted on the light-emitting element substrate 6d, and the second contact portion 39g is electrically connected to the second contact 40g (see fig. 45) of the connector 2 mounted on the light-emitting element substrate 6 d. Similarly, the first contact portion 37h is electrically connected to a first contact 38h (see fig. 45) of the connector 2 mounted on the light-emitting element substrate 6d, and the second contact portion 39h is electrically connected to a second contact 40h (see fig. 45) of the connector 2 mounted on the light-emitting element substrate 6 d.
By providing holes between the first contact portions 37a to 37h and the second contact portions 39a to 39h, the separating portions 19a to 19h electrically disconnect the first contact portions 37a to 37h and the second contact portions 39a to 39 h. Further, a housing 64 is disposed between the first contact portion 37a (first contact portions 37b to 37h) and the second contact portion 39a (second contact portions 39b to 39 h).
The first contact 38a of the connector 2 mounted on the light emitting element substrate 6a is coupled to the second contact 40a of the connector 2 mounted on the light emitting element substrate 6a via the coupling portion 41a, and the light emitting element 5a is connected to the coupling portion 41 a. The connection portion 41a connects the first contact 38a, the light emitting element 5a, and the second contact 40a via the first input pad 58a, the first circuit pattern 62, and the first output pad 60a formed on the light emitting element substrate 6 a. The first contact 38b of the connector 2 mounted on the light-emitting element substrate 6a is coupled to the second contact 40b of the connector 2 mounted on the light-emitting element substrate 6a via the coupling portion 41b, and the light-emitting element 5b is coupled to the coupling portion 41 b. The connection portion 41b connects the first contact 38b, the light emitting element 5b, and the second contact 40a via the second input pad 59a, the second circuit pattern 63, and the second output pad 60b formed on the light emitting element substrate 6 a. Therefore, the light emitting elements 5a and 5b can be independently controlled.
Similarly, the connection portion 41c connects the first contact 38c, the light emitting element 5c, and the second contact 40c via the first input pad 58b, the first circuit pattern 62, and the first output pad 60b formed on the light emitting element substrate 6 b. The connection portion 41d connects the first contact 38d, the light emitting element 5d, and the second contact 40d via the second input pad 59b, the second circuit pattern 63, and the second output pad 61b formed on the light emitting element substrate 6 b. The connection portion 41e connects the first contact 38e, the light emitting element 5e, and the second contact 40e via the first input pad 58c, the first circuit pattern 62, and the first output pad 60c formed on the light emitting element substrate 6 c. The connection portion 41f connects the first contact 38f, the light emitting element 5f, and the second contact 40f via the second input pad 59c, the second circuit pattern 63, and the second output pad 61c formed on the light emitting element substrate 6 c. The connection portion 41g connects the first contact 38g, the light emitting element 5g, and the second contact 40g via the first input pad 58d, the first circuit pattern 62, and the first output pad 60d formed on the light emitting element substrate 6 d. The connection portion 41h connects the first contact 38h, the light emitting element 5h, and the second contact 40h via the first input pad 59d, the second circuit pattern 63, and the second output pad 61d formed on the light emitting element substrate 6 d. Therefore, the light emitting elements 5c, 5d, 5e, 5f, 5g, and 5h can be controlled individually.
That is, in fig. 44, the separating portions 19a to 19h have two core amounts, respectively, and have different positions between the light emitting element substrates 6a to 6 d. Fig. 47 shows wiring of the connector mounting portions of the light-emitting element substrates 6a to 6 d. In this wiring, the upper side (first input pads 58a to 58d) and the lower side (second input pads 59a to 59d) of the SMT pads are shared. Fig. 16 shows an example in which the light-emitting element substrates are shared only on the upper side (fig. 16 shows an example corresponding to one circuit block), but as in fig. 16, only patterns in contact with the light-emitting element substrates 6a to 6d may be used, and the other portions may be in a non-conductive state, and the same light-emitting element substrates 6a to 6d may be disposed at different positions.
Next, a modification of the wiring structure 56 according to the fourth embodiment will be described with reference to fig. 48 to 51. As shown in fig. 48, the wiring structure 56 'of the modification includes a plurality of light-emitting elements (LEDs) 5a to 5h, a plurality of light-emitting element substrates 6a to 6d on which the light-emitting elements 5a to 5h are mounted, an FFC 1', and a plurality of connectors 2 (see fig. 50). Fig. 48 and 49 show a structure in which two substrates are separated into 1 piece while H direction 2 separation and V direction 4 separation are performed.
That is, the wiring structure 56' shown in fig. 48 includes eight circuit blocks, i.e., the first to eighth circuit blocks. The first circuit block is a circuit block including six light-emitting elements 5a (three light-emitting elements 5a mounted on the first light-emitting element substrate 6a and three light-emitting elements 5a mounted on the second light-emitting element substrate 6 a). The second circuit block is a circuit block including six light-emitting elements 5b (three light-emitting elements 5b mounted on the first light-emitting element substrate 6a and three light-emitting elements 5b mounted on the second light-emitting element substrate 6 a). The third circuit block is a circuit block including six light-emitting elements 5c (three light-emitting elements 5c mounted on the first light-emitting element substrate 6b and three light-emitting elements 5c mounted on the second light-emitting element substrate 6 b). The fourth circuit block is a circuit block including six light-emitting elements 5d (three light-emitting elements 5d mounted on the first light-emitting element substrate 6b and three light-emitting elements 5d mounted on the second light-emitting element substrate 6 b). The fifth circuit block is a circuit block including six light-emitting elements 5e (three light-emitting elements 5e mounted on the first light-emitting element substrate 6c and three light-emitting elements 5e mounted on the second light-emitting element substrate 6 c). The sixth circuit block is a circuit block including six light-emitting elements 5f (three light-emitting elements 5f mounted on the first light-emitting element substrate 6c and three light-emitting elements 5f mounted on the second light-emitting element substrate 6 c). The seventh circuit block is a circuit block including six light-emitting elements 5g (three light-emitting elements 5g mounted on the first light-emitting element substrate 6d and three light-emitting elements 5g mounted on the second light-emitting element substrate 6 d). The eighth circuit block is a circuit block including six light-emitting elements 5h (three light-emitting elements 5h mounted on the first light-emitting element substrate 6d and three light-emitting elements 5h mounted on the second light-emitting element substrate 6 d).
Fig. 50 is a diagram showing a structure of the connector 2 mounted on the light-emitting element substrate 6a, and fig. 51 is a diagram showing a structure of the adapter 57a mounted on the FFC 1'. The wiring structure 56' of this modification can perform a plurality of Local Dimming (LD) operations for one light-emitting element substrate (any one of 6a to 6 d). The circuit diagrams of the wiring structure 56' shown in fig. 48 to 51 are the same as those shown in fig. 45. The FFC 1' includes eight adapters 57a to 57d that are fitted to the connectors 2 mounted on the light-emitting element substrates 6a to 6d, respectively. The other configurations of the FFC 1' are the same as those of the FFC 1.
In fig. 49, the separating portions 19a and 19b of the first light-emitting element substrate 6a have two core sizes, respectively, and the separating portions 19a and 19b are also provided at the same positions on the subsequent substrate (second light-emitting element substrate 6 a). Since the separating portions 19a and 19b are provided at the same position, they can be configured as the same circuit block. The two substrates (first and second light-emitting element substrates 6a) are at the same position, and thereafter, two substrates (first and second light-emitting element substrates 6b to 6d) take different positions. In this example, the light-emitting element substrates 6a to 6d also have the same structure as that of fig. 47.
Next, a wiring structure according to a fifth embodiment (two-core parallel type) of the present invention, particularly a wiring structure employed in a lighting device (backlight device) will be described with reference to the drawings. Fig. 52 is a diagram showing a configuration of a wiring structure of the fifth embodiment. Fig. 53 is a diagram showing a configuration of an FFC constituting a wiring structure, fig. 54 is a diagram showing a routing structure of a light emitting element substrate on which a connector connected to an adapter is mounted, fig. 55 is an enlarged view of a member surrounded by a circle F shown in fig. 54, and is an enlarged view showing a routing structure of a light emitting element substrate on which a connector connected to an adapter is mounted. Fig. 56 is a diagram showing a structure of a connector mounted on a light emitting element substrate, and fig. 57 is a diagram showing a structure of an adapter mounted on a flexible flat cable. Fig. 58 is a circuit diagram of the wiring structure shown in fig. 52. As shown in fig. 52, the wiring structure 68 includes a plurality of light emitting elements (LEDs) 5, a plurality of light emitting element substrates 6' on which the light emitting elements 5 are mounted, an FFC65, and a plurality of connectors 66 (see fig. 56).
Six light emitting elements 5 are mounted on each light emitting element substrate 6'. As shown in fig. 54 and 55, a first input pad 69a, a second input pad 69b, a first output pad 69c, and a second output pad 69d are formed on the light-emitting element substrate 6'. Further, a circuit pattern 14 connected to the light emitting element 5 is formed on the light emitting element substrate 6'. One end of the circuit pattern 14 is connected to the first input pad 69a, and the other end of the circuit pattern 14 is connected to the second output pad 69 d.
A connector 66 is mounted on each light emitting element substrate 6'. As shown in fig. 56, the connector 66 includes two first contacts 70a and 70b and two second contacts 71a and 71 b. The first contact 70a of the connector 66 is surface-mounted (SMT-mounted) to the first input pad 69a of the light emitting element substrate 6' and electrically connected. Similarly, the first contact 70b, the second contact 71a, and the second contact 71b of the light-emitting element substrate 6 'are surface-mounted on the second input pad 69b, the first output pad 69c, and the second output pad 69d of the light-emitting element substrate 6', respectively, and electrically connected to each other.
As shown in fig. 57, the FFC65 includes 2 strip conductors 67a and 67b sandwiched between a cover film 13 and a base film 15. As shown in fig. 53, the FFC65 includes eight adapters 57 that are fitted to the connectors 66 mounted on the light-emitting element substrates 6, respectively. The adapter 57 includes a contact portion (not shown) in which the conductor 67a is exposed from the cover film 13 of the FFC65, and a contact portion 72 (see fig. 57) in which the conductor 67b is exposed from the cover film 13. No separated portion is provided in the conductor 67a and the conductor 67b, and the conductor 67a and the conductor 67b are not separated by the separated portion.
The contact portion not shown of the conductor 67a is electrically connected to the first contact 70a of the connector 66 by fitting the adapter 57 and the connector 66, and the contact portion 72 of the conductor 67b is electrically connected to the second contact 71b of the connector 66 by fitting the adapter 57 and the connector 66.
A conductor 67a having one end connected to a power source 73 (see fig. 58) is connected to the first contact 69a of the connector 66 via a contact portion, not shown, of the adapter 57. The first contact 70a is connected to the second contact 71b via the first input pad 69a, the light-emitting elements 5 (circuit patterns 14) mounted on the light-emitting element substrate 6', and the second output pad 69 d. The second contact 71b is connected to the contact portion 72 (conductor 67b) of the adapter 57, and one end of the conductor 67b is connected to the power supply 73. That is, the wiring structure 68 is configured as a parallel circuit in which the light emitting element substrates 6' are connected in parallel via the FFC65 by fitting the adapters 57 to the connectors 66, respectively (see fig. 58).
Next, a wiring structure according to a sixth embodiment of the present invention (a type in which two substrates are divided into two by 6 in the H direction, 3 in the V direction, and 1 in the V direction) and particularly a wiring structure used in an illumination device (backlight device) will be described with reference to the drawings. Fig. 59 to 69 are diagrams showing the configuration of the wiring structure of the sixth embodiment (type of division into 6H direction, 3V direction, and 1 division across two substrates). Fig. 59 is a diagram showing a configuration of a wiring structure according to the sixth embodiment. Fig. 60 is a diagram showing a configuration of the FFC having the wiring structure, and fig. 61 is a diagram showing a state in which an adapter mounted on the FFC is fitted to a connector mounted on the light-emitting element substrate and a state in which the adapter is fitted to a connector mounted on the control substrate. Fig. 62 is a diagram showing a structure of an adapter attached to an FFC, fig. 63 is a diagram showing a structure of an FFC, fig. 64 is a diagram showing a structure of an FFC, and fig. 65 is a diagram showing a structure of a housing constituting an adapter attached to an FFC. Fig. 66 is a view showing a lead structure of a light emitting element substrate on which a connector connected to an adapter is mounted, and fig. 67 is an enlarged view of a member surrounded by a circle G shown in fig. 66 and showing a lead structure of a light emitting element substrate on which a connector connected to an adapter is mounted. Fig. 68 and 69 are diagrams showing the structure of a connector mounted on a light-emitting element substrate.
The Flexible Flat Cable (FFC)65 ', the light-emitting element substrates 74a to 74c, and the control substrate 26' shown in fig. 59 to 69 are mounted on the upper right of the mounting surface of a flat (flat) mounting member (not shown). The FFC and the light-emitting element substrate having the same configuration as that of the FFC65 'and the light-emitting element substrates 74a to 74c with the center line in the longitudinal direction of the mounting surface being line-symmetric are mounted on the upper left of the mounting surface, the FFC and the light-emitting element substrate having the same configuration as that of the FFC 65' and the light-emitting element substrates 74a to 74c with the center line in the short side direction of the mounting surface being line-symmetric are mounted on the lower right of the mounting surface, the FFC and the light-emitting element substrate having the same configuration as that of the FFC65 'and the light-emitting element substrates 74a to 74c with the center point of the mounting surface being point-symmetric are mounted on the lower left of the mounting surface, and each FFC is connected to the control substrate 26'.
Fig. 67 shows a wiring pattern of the light emitting element substrate 74a, and one block is formed by two Local Dimming (LD) groups (upper and lower sides of a pattern) using one substrate. Although the group of LD 2 × 3 blocks is shown in this figure, a space for leading out the inner wiring to the outside (between the pads 58s and 58d, between the pads 58q and 58b, between the pads 60s and 60d, and between the pads 60q and 60 b) is secured between the blocks. Although three blocks are illustrated in this example, the number of blocks may be arbitrarily set.
As shown in fig. 59, the wiring structure of the sixth embodiment includes a plurality of light emitting elements (LEDs) 5a to 5t, a plurality of light emitting element substrates 74a to 74c on which the light emitting elements 5a to 5t are mounted, an FFC65 ', a plurality of connectors 75, and a control substrate 26'.
The FFC 65' is composed of 18 strip-shaped conductors sandwiched between a cover film and an undercoat film, a cover film as an insulator covering the surfaces of the 18 conductors, and an undercoat film as an insulator covering the back surfaces of the 18 conductors. The FFC65 ' includes six adapters 57a ' to 57c ' that are fitted to the connectors 75 mounted on the light-emitting element substrates 74a to 74c, respectively, and an adapter 57 ' that is fitted to the connector 75 mounted on the control substrate 26 '. As shown in fig. 64, the FFC65 'is folded back at the center of the FFC 65', and both ends of the FFC65 'are attached to both side portions of the adaptor 57'.
The adapter 57 a' is fitted to the connector 75 by receiving the connector 75 mounted on the light emitting element substrate 74a from below. The adapter 57a 'includes first and second contact portions 77a, not shown, in which the fifth conductor is exposed from the cover film of the FFC 65', first and second contact portions 77b, not shown, in which the sixth conductor is exposed from the cover film, first and second contact portions 77c, not shown, in which the eleventh conductor is exposed from the cover film, first and second contact portions 77d, not shown, in which the twelfth conductor is exposed from the cover film, first and second contact portions 77e, not shown, in which the seventeenth conductor is exposed from the cover film, and first and second contact portions 77f, not shown, in which the eighteenth conductor is exposed from the cover film.
The first and second contact portions 77a, which are formed by exposing the fifth conductor, are separated by the separation portion 76 a. That is, the separating portion 76a separates the fifth conductor between the first contact portion and the second contact portion 77 a. The first and second contact portions 77b, which expose the sixth conductor, are separated by the separation portion 76 b. That is, the separating portion 76b separates the sixth conductor between the first contact portion and the second contact portion 77 b. The first and second contact portions 77c exposed from the eleventh conductor are separated by the separating portion 76 c. That is, the separating portion 76c separates the eleventh conductor between the first contact portion and the second contact portion 77 c. The first and second contact portions 77d exposed from the twelfth conductor are separated by the separating portion 76 d. That is, the separating portion 76d separates the twelfth conductor between the first contact portion and the second contact portion 77 d. The first and second contact portions 77e exposed from the seventeenth conductor are separated by the separation portion 76 e. That is, the separation portion 76e separates the seventeenth conductor between the first contact portion and the second contact portion 77 e. The first and second contact portions 77f exposed from the eighteenth conductor are separated by the separation portion 76 f. That is, the separating portion 76f separates the eighteenth conductor between the first contact portion and the second contact portion 77 f.
The first contact portion formed of the fifth conductor is electrically connected to the first contact 80a (see fig. 69) of the connector 75 attached to the light emitting element substrate 74a by fitting the adapter 57 a' and the connector 75 attached to the light emitting element substrate 74a, and the second contact portion 77a is electrically connected to the second contact 79a (see fig. 69) of the connector 75 attached to the light emitting element substrate 74 a. Similarly, the first contact portion and the first contact 80b (see FIG. 69) formed of the sixth conductor, the second contact portion 77b and the second contact 79b (see FIG. 69), the first contact portion and the first contact 80c (see FIG. 69) formed of the eleventh conductor, the second contact portion 77c and the second contact 79c (see FIG. 69), and the first contact portion and the first contact 80d (see FIG. 69) formed of the twelfth conductor, the second contact portion 77d is electrically connected to the second contact 79d (see fig. 69), the first contact portion and the first contact 80e (see fig. 69) each formed of a seventeenth conductor, the second contact portion 77e is electrically connected to the second contact 79e (see fig. 69), the first contact portion and the first contact 80f (see fig. 69) each formed of an eighteenth conductor, and the second contact portion 77f is electrically connected to the second contact 79f (see fig. 69).
The adapter 57 b' is fitted to the connector 75 by receiving the connector 75 mounted on the light emitting element substrate 74b from below. The adapter 57b 'includes first and second contact portions 77g, not shown, in which the third conductor is exposed from the FFC 65' cover film, first and second contact portions 77h, not shown, in which the fourth conductor is exposed from the cover film, first and second contact portions 77i, not shown, in which the ninth conductor is exposed from the cover film, first and second contact portions 77j, not shown, in which the tenth conductor is exposed from the cover film, first and second contact portions 77k, not shown, in which the fifteenth conductor is exposed from the cover film, and first and second contact portions 77m, not shown, in which the sixteenth conductor is exposed from the cover film.
The first and second contact portions 77g, which expose the third conductor, are separated by the separation portion 76 g. That is, the separation portion 76g breaks the third conductor between the first contact portion and the second contact portion 78 g. The first contact portion and the second contact portion 77h where the fourth conductor is exposed are separated by the separation portion 76 h. That is, the separation portion 76h breaks the fourth conductor between the first contact portion and the second contact portion 77 h. The first and second contact portions 77i exposed from the ninth conductor are separated by the separating portion 76 i. That is, the separating portion 76i separates the ninth conductor between the first contact portion and the second contact portion 77 i. The first and second contact portions 77j exposed from the tenth conductor are separated by the separation portion 76 j. That is, the separation portion 76j breaks the tenth conductor between the first contact portion and the second contact portion 77 j. The first and second contact portions 77k exposed from the fifteenth conductor are separated by the separation portion 76 k. That is, the separation portion 76k breaks the fifteenth conductor between the first contact portion and the second contact portion 77 k. The first and second contact portions 77m exposed from the sixteenth conductor are separated by the separation portion 76 m. That is, the separating portion 76m breaks the sixteenth conductor between the first contact portion and the second contact portion 77 m.
The first contact portion where the third conductor is exposed is electrically connected to the first contact 80g (see fig. 69) of the connector 75 attached to the light-emitting element substrate 74b by fitting the adapter 57 b' and the connector 75 attached to the light-emitting element substrate 74b, and the second contact portion 77g is electrically connected to the second contact 79g (see fig. 69) of the connector 75 attached to the light-emitting element substrate 74 b. Similarly, the first contact portion of the fourth conductor is electrically connected to the first contact 80h (see fig. 69), the second contact portion 77h is electrically connected to the second contact 79h (see fig. 69), the first contact portion of the ninth conductor is electrically connected to the first contact 80i (see fig. 69), the second contact portion 77i is electrically connected to the second contact 79i (see fig. 69), the first contact portion of the tenth conductor is electrically connected to the first contact 80j (see fig. 69), the second contact portion 77j is electrically connected to the second contact 79j (see fig. 69), the first contact portion of the fifteenth conductor is electrically connected to the first contact 80k (see fig. 69), the second contact portion 77k is electrically connected to the second contact 79k (see fig. 69), and the first contact portion of the sixteenth conductor is electrically connected to the first contact 80m (see fig. 69), the second contact portion 77m is electrically connected to a second contact 79m (see fig. 69).
The adapter 57 c' is fitted to the connector 75 by receiving the connector 75 mounted on the light emitting element substrate 74c from below. The adapter 57c 'includes first and second contact portions 77n, not shown, in which the first conductor is exposed from the cover film of the FFC 65', first and second contact portions 77p, not shown, in which the second conductor is exposed from the cover film, first and second contact portions 77q, not shown, in which the seventh conductor is exposed from the cover film, first and second contact portions 77r, not shown, in which the eighth conductor is exposed from the cover film, first and second contact portions 77s, not shown, in which the thirteenth conductor is exposed from the cover film, and first and second contact portions 77t, not shown, in which the fourteenth conductor is exposed from the cover film.
The first and second contact portions 77n, which are formed by exposing the first conductor, are separated by the separation portion 76 n. That is, the separation portion 76n separates the first conductor between the first contact portion and the second contact portion 77 n. The first and second contact portions 77p where the second conductor is exposed are separated by the separation portion 76 p. That is, the separation portion 76p breaks the second conductor between the first contact portion and the second contact portion 77 p. The first and second contact portions 77q exposed from the seventh conductor are separated by the separation portion 76 q. That is, the separating portion 76q separates the seventh conductor between the first contact portion and the second contact portion 77 q. The first and second contact portions 77r exposed from the eighth conductor are separated by the separating portion 76 r. That is, the separating portion 76r separates the eighth conductor between the first contact portion and the second contact portion 77 r. The first and second contact portions 77s exposed from the thirteenth conductor are separated by the separation portion 76 s. That is, the separating portion 76s breaks the thirteenth conductor between the first contact portion and the second contact portion 77 s. The first and second contact portions 77t exposed from the fourteenth conductor are separated by the separation portion 76 t. That is, the separation portion 76t separates the fourteenth conductor between the first contact portion and the second contact portion 77 t.
The first contact portion where the first conductor is exposed is electrically connected to the first contact 80n (see fig. 69) of the connector 75 attached to the light-emitting element substrate 74c by fitting the adapter 57 c' to the connector 75 attached to the light-emitting element substrate 74c, and the second contact portion 77n is electrically connected to the second contact 79n (see fig. 69) of the connector 75 attached to the light-emitting element substrate 74 c. Similarly, the first contact portion and the first contact 80p (see FIG. 69) formed of the second conductor, the second contact portion 77p and the second contact 79p (see FIG. 69), the first contact portion and the first contact 80q (see FIG. 69) formed of the seventh conductor, the second contact portion 77q and the second contact 79q (see FIG. 69), and the first contact portion and the first contact 80r (see FIG. 69) formed of the eighth conductor, the second contact portion 77r is electrically connected to the second contact 79r (see fig. 69), the first contact portion and the first contact 80s (see fig. 69) each formed of a thirteenth conductor, the second contact portion 77s and the second contact 79s (see fig. 69), the first contact portion and the first contact 80t (see fig. 69) each formed of a fourteenth conductor, and the second contact portion 77t and the second contact 79t (see fig. 69).
The separating portions 76a to 76t electrically disconnect the first and second contact portions 77a to 77t by providing hole portions between the first and second contact portions 77a to 77t, which are not shown. Further, a housing is disposed in a space formed by the first contact portion (the other first contact portions), the separation portion 76a (the separation portions 76b to 76t), and the second contact portion 77a (the second contact portions 77b to 77 t). That is, the first contact portions (other first contact portions) face away from the second contact portions 77a (second contact portions 77b to 77 t).
The adapter 57 'is fitted by receiving one of the four connectors 75 mounted on the control board 26' from below. The adapter 57 ' includes first contact portions 78a to 78t formed from one end of the FFC65 ' and having 1 st to 18 th conductors exposed from the cover film, and second contact portions 86a to 86t formed from the other end of the FFC65 ' (see fig. 63). The housing is disposed between the first contact portions 78a to 78t and the second contact portions 86a to 86t, the first contact portions 78a to 78t are fixed to one side portion of the housing, and the second contact portions are fixed to the other side portion of the housing. That is, the first contact portions 78a to 78t face away from the second contact portions.
As shown in fig. 59, light emitting elements 5a to 5f are mounted on a light emitting element substrate 74 a. As shown in fig. 67, the light-emitting element substrate 74a is provided with three first input pads 60a, 60g, and 60n, three second input pads 60b, 60h, and 60p, three third input pads 60c, 60i, and 60q, three fourth input pads 60d, 60j, and 60r, three fifth input pads 60e, 60k, and 60s, and three sixth input pads 60f, 60m, and 60 t. As shown in fig. 67, the input pads 60a to 60t are arranged in parallel.
As shown in fig. 67, the light-emitting element substrate 74a is provided with three first output pads 58a, 58g, and 58n, three second output pads 58b, 58h, and 58p, three third output pads 58c, 58i, and 58q, three fourth output pads 58d, 58j, and 58r, three fifth output pads 58e, 58k, and 58s, and three sixth output pads 58f, 58m, and 58 t. As shown in fig. 67, the output pads 58a to 58t are arranged in parallel.
Further, the light emitting element substrate 74a is formed with a first circuit pattern 62a connected to the light emitting element 5a, a second circuit pattern 62b connected to the light emitting element 5b, a third circuit pattern 62c connected to the light emitting element 5c, a fourth circuit pattern 62d connected to the light emitting element 5d, a fifth circuit pattern 62e connected to the light emitting element 5e, and a sixth circuit pattern 62f connected to the light emitting element 5 f. First input pads 60a, 60g, and 60n are connected in parallel to one end of the first circuit pattern 62a, and first output pads 58a, 58g, and 58n are connected in parallel to the other end of the first circuit pattern 62 a. Similarly, second input pads 60b, 60h, and 60p are formed at one end of the second circuit pattern 62b, second output pads 58b, 58h, and 58p are formed at the other end of the second circuit pattern 62b, third input pads 60c, 60i, and 60q are formed at one end of the third circuit pattern 62c, third output pads 58c, 58i, and 58q are formed at the other end of the third circuit pattern 62c, fourth input pads 60d, 60j, and 60r are formed at one end of the fourth circuit pattern 62d, fourth output pads 58d, 58j, and 58r are formed at the other end of the fourth circuit pattern 62d, fifth input pads 60e, 60k, and 60s are formed at one end of the fifth circuit pattern 62e, and fifth output pads 58e, and 58j, and 58r are formed at the other end of the fifth circuit pattern 62e, 58k, 58s, sixth input pads 60f, 60m, 60t are formed at one end of the sixth circuit pattern 62f, and sixth output pads 58f, 58m, 58t are formed at the other end of the sixth circuit pattern 62 f.
The first circuit pattern 62a is connected to the light emitting element 5a and is formed in a ring shape within the surface of the light emitting element substrate 74 a. Similarly, the second circuit pattern 62b is connected to the light emitting element 5b, the third circuit pattern 62c is connected to the light emitting element 5c, the fourth circuit pattern 62d is connected to the light emitting element 5d, the fifth circuit pattern 62e is connected to the light emitting element 5e, and the sixth circuit pattern 62f is connected to the light emitting element 5 and is formed in a ring shape in the surface of the light emitting element substrate 74 a.
The first circuit pattern 62a is routed to the inside of the second to sixth circuit patterns 62b to 62f, and the second circuit pattern 62b is routed between the first circuit pattern 62a and the third to sixth circuit patterns 62c to 62 f. The third circuit pattern 62c is routed between the first and second circuit patterns 62a and 62b and the fourth to sixth circuit patterns 62d to 62f, and is routed to the outside of the second circuit pattern 62b through the space between the second input pad 60b and the third input pad 60q as shown in fig. 67. The second circuit pattern 63 is led to the outside of the first circuit pattern 62. The fifth circuit pattern 62e is routed between the first to fourth circuit patterns 62a to 62d and the sixth circuit pattern 62f, and to achieve this routing, as shown in fig. 67, is routed to the outside of the fourth circuit pattern 62d through between the fourth input pad 60d and the fifth input pad 60 s.
Light-emitting elements 5g to 5m are mounted on the light-emitting element substrate 74b, light-emitting elements 5n to 5t are mounted on the light-emitting element substrate 74c, and the light-emitting elements 5a to 5t are the same light-emitting elements. In addition, input pads 60a to 60t, output pads 58a to 58t, and circuit patterns 62a to 62f are also formed on the light emitting element substrates 74b and 74 c.
The first contact 80a of the connector 75 mounted on the light emitting element substrate 74a is coupled to the second contact 79a of the connector 75 mounted on the light emitting element substrate 74a via the light emitting element substrate 74 a. That is, the first contact 80a is electrically connected to the second contact 79a via the first input pad 60a, the first circuit pattern 62a, and the first output pad 58a formed on the light emitting element substrate 74 a. The light emitting element 5a is connected to the first circuit pattern 62 a.
The first contact 80b of the connector 75 mounted on the light-emitting device substrate 74a is connected to the second contact 79b of the connector 75 mounted on the light-emitting device substrate 74a via the light-emitting device substrate 74 a. That is, the first contact 80b is electrically connected to the second contact 79b via the second input pad 60b, the second circuit pattern 62b, and the second output pad 58b formed on the light emitting element substrate 74 a. The light emitting element 5b is connected to the second circuit pattern 62 b.
The first contact 80c of the connector 75 mounted on the light-emitting device substrate 74a is connected to the second contact 79c of the connector 75 mounted on the light-emitting device substrate 74a via the light-emitting device substrate 74 a. That is, the first contact 80c is electrically connected to the second contact 79c via the third input pad 60c, the third circuit pattern 62c, and the third output pad 58c formed on the light emitting element substrate 74 a. The light emitting element 5c is connected to the third circuit pattern 62 c.
The first contact 80d of the connector 75 mounted on the light-emitting device substrate 74a is connected to the second contact 79d of the connector 75 mounted on the light-emitting device substrate 74a via the light-emitting device substrate 74 a. That is, the first contact 80d is electrically connected to the second contact 79d via the fourth input pad 60d, the fourth circuit pattern 62d, and the fourth output pad 58d formed on the light emitting element substrate 74 a. The light emitting element 5d is connected to the fourth circuit pattern 62 d.
The first contact 80e of the connector 75 mounted on the light-emitting device substrate 74a is connected to the second contact 79e of the connector 75 mounted on the light-emitting device substrate 74a via the light-emitting device substrate 74 a. That is, the first contact 80e is electrically connected to the second contact 79e via the fifth input pad 60e, the fifth circuit pattern 62e, and the fifth output pad 58e formed on the light emitting element substrate 74 a. The light emitting element 5e is connected to the fifth circuit pattern 62 e.
The first contact 80f of the connector 75 mounted on the light-emitting device substrate 74a is connected to the second contact 79f of the connector 75 mounted on the light-emitting device substrate 74a via the light-emitting device substrate 74 a. That is, the first contact 80f is electrically connected to the second contact 79f via the sixth input pad 60f, the sixth circuit pattern 62f, and the sixth output pad 58f formed on the light emitting element substrate 74 a. The light emitting element 5f is connected to the sixth circuit pattern 62 f.
Similarly, the first contacts 80g to 80m of the connector 75 mounted on the light emitting device substrate 74b are connected to the second contacts 79g to 79m of the connector 75 mounted on the light emitting device substrate 74b via the light emitting device substrate 74b, respectively. That is, the first contacts 80g to 80m are electrically connected to the second contacts 79g to 79m via the input pads 60g to 60m, the circuit patterns 62a to 62f, and the output pads 58g to 58m formed on the light emitting element substrate 74b, respectively. Light emitting elements 5g to 5m are connected to the circuit patterns 62a to 62f, respectively.
Similarly, the first contacts 80n to 80t of the connector 75 mounted on the light emitting element substrate 74c are connected to the second contacts 79n to 79t of the connector 75 mounted on the light emitting element substrate 74c via the light emitting element substrate 74c, respectively. That is, the first contacts 80n to 80t are electrically connected to the second contacts 79n to 79t via the input pads 60n to 60t, the circuit patterns 62n to 62t, and the output pads 58n to 58t formed on the light emitting element substrate 74c, respectively. Light emitting elements 5n to 5t are connected to the circuit patterns 62n to 62t, respectively.
The electric signal transmitted by the power supply, not shown, is transmitted to the conductor via the first contact of the connector 75 mounted on the control board 26 'and the first contact portion 78a of the adapter 57', reaches the first contact portion of the adapter 84a, and reaches the light emitting element 5a mounted on the light emitting element board 74a via the first contact 80a of the connector 75 mounted on the light emitting element board 74 a. Then, the electrical signal returns to the conductor via the second contact 79a of the connector 75 and the second contact portion 77a of the adapter 57 ', and returns to the control substrate 26 ' along the folded-back conductor via the second contact portion 79a of the adapter 57 ' and the second contact of the connector 75. Therefore, the light emission control unit (not shown) can independently and individually perform power supply control (light emission control) of the light emitting element 5a from the other light emitting elements 5b to 5 t. Similarly, the light emission control unit can independently and individually perform power supply control (light emission control) for each of the light emitting elements 5b to 5t from the other light emitting elements.
Further, referring to fig. 70, a modification of the FFC shown in fig. 15, that is, an FFC in which the light-emitting element substrates according to the first embodiment are connected in series and an FFC in which the light-emitting element substrates according to the fifth embodiment are connected in parallel are combined will be described. Fig. 70 is a diagram showing the configuration of an FFC according to a modification. In the FFC 32' shown in fig. 70, the same components as those of the FFC32 shown in fig. 15 are denoted by the same reference numerals, and the description thereof will be omitted. As shown in fig. 70, the FFC32 ' includes four conductors 50 to 53, a cover film 34 covering the surfaces of the four conductors 50 to 53, and a base film (not shown) covering the back surfaces of the four conductors 50 to 53, and includes four adapters 35a ' to 35d '. The portions of the conductors 50 to 53 shown by the broken lines are covered with the cover film 34 and the base film. The adapters 35a 'to 35 d' make electrical contact with the contacts of the connector when fitted to the connector mounted on the light emitting element substrate.
The adapter 35 a' includes a first contact portion 100a formed of the conductor 50 exposed from the cover film 34 to the + Y direction side and a second contact portion 100c formed of the conductor 50 exposed from the cover film 34 to the-Y direction side. The first contact portion 100a and the second contact portion 100c are separated by a separation portion 36a ', and the separation portion 36 a' separates the conductor 50 between the first contact portion 100a and the second contact portion 100 c. Similarly, the adapter 35a 'includes a first contact portion 100a and a second contact portion 100c formed of the conductor 51, and the separation portion 36 a' separates the conductor 51 between the first contact portion 100a and the second contact portion 100 c.
The adapter 35b 'includes a first contact portion 100a including the conductor 51 and the conductor 53 and a second contact portion 100c including the conductor 51 and the conductor 53, and the separation portion 36 b' separates the conductor 51 and the conductor 53 between the first contact portion 100a and the second contact portion 100 c. On the other hand, the adapter 35 b' includes a first contact portion 100b including the conductor 50 exposed from the cover film 34 to the + Y direction side and a second contact portion 100d including the conductor 50 exposed from the cover film 34 to the-Y direction side. The first contact portion 100b and the second contact portion 100d are not separated by the separation portion. That is, the first contact portion 100b is connected to the conductor 50 between the second contact portions 100 d. Similarly, the adapter 35 b' includes a first contact portion 100b made of the conductor 52 and a second contact portion 100d made of the conductor 52, and the first contact portion 100b and the second contact portion 100d are not separated by a separation portion.
The adapter 35 c' includes a first contact portion 100b including the conductor 51 and the conductor 52, and a second contact portion 100d including the conductor 51 and the conductor 52, and the first contact portion 100b and the second contact portion 100d are not separated by a separation portion. The adapter 35d 'includes a first contact portion 100a made of the conductor 50 and a second contact portion 100c made of the conductor 50, and the separation portion 36 d' separates the conductor 50 between the first contact portion 100a and the second contact portion 100 c. The adapter 35 d' includes a first contact portion 100c formed of the conductor 53 and a second contact portion 100d formed of the conductor 53, and the first contact portion 100c and the second contact portion 100d are not separated by a separation portion. The arrangement positions of the first contact portions 100a and 100b and the second contact portions 100c and 100d may be changed as appropriate, and are not limited to the arrangement positions shown in fig. 17. In this manner, by appropriately combining the series connection (the first contact portion 100a and the second contact portion 100c) and the parallel connection (the first contact portion 100b and the second contact portion 100d), various circuit configurations can be adopted.
Next, a wiring structure of a seventh embodiment of the present invention (a type in which No. 1 pin and No. 4 pin are terminals, No. 2 pin and No. 3 pin are terminals, and a connection portion with a control substrate is a center), particularly a wiring structure employed in a lighting device (backlight device) will be described with reference to the drawings. Fig. 71 to 75 show the configuration of the wiring structure according to the seventh embodiment (type in which No. 1 pin and No. 4 pin, No. 2 pin and No. 3 pin are terminals, and the connection portion with the control board is the center). In addition, the combination of the terminals may be pin No. 1 and pin No. 2, and pin No. 3 and pin No. 4. Or pin number 2 and pin number 3, and pin number 1 and pin number 4. Fig. 71 is a diagram showing an overall configuration of a wiring structure according to another embodiment. Fig. 72 is a diagram showing a configuration of a terminal of a flexible flat cable. Fig. 73 is a diagram showing a state in which the flexible flat cable and the light-emitting element substrate are fitted to each other and a state in which the flexible flat cable and the control substrate are fitted to each other in the central portion of the wiring structure. The connector connected to the control board shown in fig. 73 is configured by 2 rows, and the upper row thereof receives the LED board positioned above the control board shown in fig. 71. Likewise, the following accepts the LED substrate located on the lower side. Fig. 74 is a diagram showing a configuration of the control board. Fig. 75 is a diagram showing a configuration of a central portion of the flexible flat cable.
The wiring structure of the seventh embodiment includes a plurality of light emitting elements (LEDs) 5a to 5t, a plurality of light emitting element substrates 74a to 74c on which the light emitting elements 5a to 5t are mounted, an FFC65a, a plurality of connectors 85 (see fig. 74), and a control substrate 26'. The Flexible Flat Cable (FFC)65a, the light-emitting element substrates 74a to 74c, and the control substrate 26' shown in fig. 71 to 75 are mounted on the right side of the mounting surface of a flat (flat) mounting member (not shown). The FFC and the light-emitting element substrate having the same structures as those of the FFC65a and the light-emitting element substrates 74a to 74c are mounted on the left side of the mounting surface so as to be line-symmetric about the center line in the short side direction (vertical direction on the paper surface in fig. 71), and each FFC is connected to the control substrate 26'.
The FFC65a is composed of 36 strip-shaped conductors sandwiched between a cover film and an undercoat film, a cover film as an insulator covering the surfaces of the 36 conductors, and an undercoat film as an insulator covering the back surfaces of the 36 conductors. As shown in fig. 72, one end portion of the conductor 81a corresponding to pin No. 1 and one end portion of the conductor 81d corresponding to pin No. 4 have a terminal structure (bridge portion) 48a, and are bridged by the terminal structure 48 a. Similarly, one end portion of the conductor 81b corresponding to pin No. 2 and one end portion of the conductor 81c corresponding to pin No. 3 have a terminal structure (bridge portion) 48b, and are bridged by the terminal structure 48 b. Similarly, the end portions of the conductors corresponding to pins 5 to 8, 9 to 12, 13 to 16, 17 to 20, 21 to 24, 25 to 28, 29 to 32 and 33 to 36 also have the same terminal structure as the end portions of the conductors 81a to 81d corresponding to pins 1 to 4 and are bridged by the terminal structure.
The FFC65a includes 12 adapters 84, 84a to 84c that are fitted to the connectors attached to the light-emitting element boards 74a to 74c, respectively, and an adapter 84 that is fitted to the connector 85 attached to the control board 26'. Since the light emitting element substrates 74a to 74c and the adapters 84 and 84a to 84c have the same configuration in line symmetry with respect to the center line in the longitudinal direction (left-right direction on the paper surface of fig. 71) of the mounting surface of the mounting member, only the configurations of the light emitting element substrates 74a to 74c and the adapters 84 and 84a to 84c shown in the upper part of the paper surface of fig. 71 will be described, and the configurations of the light emitting element substrates 74a to 74c and the adapters 84 and 84a to 84c shown in the lower part of the paper surface of fig. 71 will be omitted.
The adapters 84, 84a to 84c are fitted to the connectors mounted on the light emitting element substrates 74a to 74c by receiving the connectors from below. As shown in an enlarged view (see fig. 72) surrounded by a circle AA shown in fig. 72, the adapter 84 includes first and second contact portions 83a, 83b, 83c, 83d, and 83a, 83b, 83c, 83d, and 83d, respectively. The first contact portion and the second contact portion 83a, which expose the conductor 81a, are separated by the separation portion 82 a. The first contact portion and the second contact portion 83c, which expose the conductor 81c, are separated by the separation portion 82 c. On the other hand, the first and second contact portions 83b and 83d in which the conductors 81b and 81d are exposed are not separated by the separation portion.
The first contact portions formed of the conductors 81a and 81c are electrically connected to the first contacts of the connector mounted on the light emitting element substrate 74a by fitting the adapter 84 to the connector mounted on the light emitting element substrate 74a, and the second contact portions 83a and 83c are electrically connected to the second contacts of the connector mounted on the light emitting element substrate 74 a. On the other hand, the first and second contact portions 83b and 83d formed by the conductors 81b and 81d are not electrically connected to any of the first and second contacts of the connector mounted on the light emitting element substrate 74 a.
The adapter 84 includes first and second contact portions in which conductors corresponding to No. 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, and 35 pins are exposed. These first and second contact portions are separated by a separating portion, similarly to the first and second contact portions 83a exposed from the conductor 81 a. The adapter 84 includes first and second contact portions exposed from conductors corresponding to pin nos. 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, and 36. These first and second contact portions are not separated by the separating portion, similarly to the first and second contact portions 83b exposed from the conductor 81 b.
The adapter 84a includes first and second contact portions that are exposed from conductors corresponding to the No. 1 pin, the No. 3 pin, the No. 13 pin, the No. 15 pin, the No. 25 pin, and the No. 27 pin. These first and second contact portions are separated by a separating portion, similarly to the first and second contact portions 83a exposed from the conductor 81 a. The adapter 84a includes first and second contact portions that are exposed from conductors corresponding to the No. 2 pin, the No. 4 pin, the No. 14 pin, the No. 16 pin, the No. 26 pin, and the No. 28 pin. These first and second contact portions are not separated by the separating portion, similarly to the first and second contact portions 83b exposed from the conductor 81 b.
The adapter 84b includes first and second contact portions that are exposed from conductors corresponding to the No. 5 pin, the No. 7 pin, the No. 17 pin, the No. 19 pin, the No. 29 pin, and the No. 31 pin. These first and second contact portions are separated by the separating portion, similarly to the first contact portion 83a and the second contact portion exposed from the conductor 81 a. In addition, the conductors corresponding to pin No. 6, pin No. 8, pin No. 18, pin No. 20, pin No. 30, and pin No. 32 of the adapter 84b do not have the first contact portion, the second contact portion, and the separation portion.
The adapter 84c includes first and second contact portions 83i, 83k, 83w, 83y, 83ai, and 83ak, not shown, which are exposed from the conductors 81i, 81k, 81w, 81y, 81ai, and 81ak corresponding to the No. 9 pin, the No. 11 pin, the No. 21 pin, the No. 23 pin, the No. 33 pin, and the No. 35 pin. These first and second contact portions 83i, 83k, 83w, 83y, 83ai, and 83ak are separated by the separating portions 82i, 82k, 82w, 82y, 82ai, and 82ak, similarly to the first and second contact portions 83a exposed from the conductor 81 a. In addition, the conductors corresponding to pin No. 10, pin No. 12, pin No. 22, pin No. 24, pin No. 34, and pin No. 36 of the adapter 84c do not have the first contact portion, the second contact portion, and the separation portion.
The first contact portions exposed from the conductors of the No. 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, and 35 pins are electrically connected to the first contacts of the connectors mounted on the light emitting element substrates 74a to 74c by fitting the adapters 84a to 84c to the connectors mounted on the light emitting element substrates 74a to 74 c. The second contact portions exposed from the conductors of the No. 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, and 35 pins are electrically connected to the second contacts of the connectors mounted on the light emitting element substrates 74a to 74c by fitting the adapters 84a to 84c to the connectors mounted on the light emitting element substrates 74a to 74 c. On the other hand, the first contact portion and the second contact portion exposed from the conductors of the No. 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, and 36 pins are not electrically connected to any of the first contacts and the second contacts of the connectors mounted on the light emitting element substrates 74a to 74 c.
The adapter 84 located at the center of the FFC65a is fitted to the connector 85 attached to the control board 26'. The adapter 84 includes 36 first contact portions formed in the center of the FFC65a and each exposing the 1 st to 36 th conductors from the cover film, and 36 second contact portions formed in the center of the FFC65a and each exposing the 1 st to 36 th conductors from the cover film. The 36 first contact portions and the 36 second contact portions are separated by the separation portions, respectively, and the housing is disposed in a space formed by the 36 first contact portions, the 36 separation portions, and the 36 second contact portions, and the first contact portions and the second contact portions are fixed to the housing. Namely, the 36 first contact portions and the 36 second contact portions face away from each other.
The light emitting element substrates 74a to 74c have the same configuration as the light emitting element substrates 74a to 74c (see fig. 59) of the sixth embodiment. However, the input pads and the output pads formed on the light emitting element substrates 74a to 74c have the same configuration as the input pads 60a to 60t and the output pads 58a to 58t shown in fig. 67, but the pitch between the input pads and the output pads (the distance between the input pads and the distance between the output pads) is twice the pitch between the input pads 60a to 60t and the output pads 58a to 58t shown in fig. 67. For example, the distance between the first and second input pads of the light emitting element substrate 74a of the seventh embodiment is twice the distance between the input pads 60e and 60 f. In addition, conductors without the first contact portion, the second contact portion, and the separation portion are located between the input pads and between the output pads.
An electric signal transmitted by a power supply (not shown) is transmitted to the conductor 81a via the first contact of the connector 85 mounted on the control board 26' and the first contact portion of the adapter 84 (the first contact portion in which the conductor 81a is exposed), reaches the first contact portion of the adapter 84 (the first contact portion in which the conductor 81a is exposed) shown in the upper part of the drawing sheet of fig. 71, and reaches the light emitting element 5f mounted on the light emitting element substrate 74a via the first contact of the connector mounted on the light emitting element substrate 74 a. Then, the electrical signal is terminated via the second contact of the connector mounted on the light emitting element substrate 74a, the second contact portion 83a of the adapter 84, and is returned to the control substrate 26' by passing through the conductor 81d from the second contact portion 83d along the terminal structure 48 a. Similarly, the electric signal is transmitted to the conductor 81a via the second contact of the connector 85 mounted on the control board 26' and the second contact portion of the adapter 84 (the second contact portion in which the conductor 81a is exposed), and reaches the adapter 84a shown in the lower part of the paper surface of fig. 71. Therefore, the light emission control unit (not shown) can independently and individually control the power supply (light emission control) of the light emitting element 5f from the other light emitting elements 5a to 5e, 5g to 5 t. Similarly, the light emission control unit can independently and individually perform power supply control (light emission control) for the light emitting elements 5a to 5e and 5g to 5t from the other light emitting elements.
In the above embodiments, the FFC is described as an example of a wiring material for relaying electrical connection between the light-emitting element substrate and the power supply substrate (control substrate), but, for example, wires shown in fig. 76 and 77 may be used instead of the FFC as the wiring material. In fig. 76 and 77, the case where four wires are provided and the light emission control is performed by dividing the plurality of light emitting elements into two is exemplified, but a configuration may be provided in which three or less wires or five or more wires are provided. In the case where light emission of a plurality of light emitting elements is controlled collectively, a wire may be used as a wiring material in the case where light emission control is performed by dividing the light emitting elements into three or more parts.
As shown in fig. 76 (a), the wiring structure 87 includes a light-emitting element substrate 88 on which a plurality of light-emitting elements 5 (not shown) are mounted, a connector 89 mounted on the light-emitting element substrate 88, and an adapter 91 on which 4 wires 90a to 90d are mounted. Fig. 76 (B) is a diagram showing the structure of the adapter 91, and particularly shows the structure of the fitting portion to be fitted to the connector 89. The electric wires 90a to 90d are covered with a coating layer as an insulator and are accommodated in the slits of the adapter 91. The adapter 91 includes first pads 92a and 92d that are electrically connected to first contact portions, not shown, of the wires 90a and 90d by pressure-bonding the wires 90a and 90d to the adapter 91 to break the coating layers. The adapter 91 includes first pads 92b and 92c between the first pads 92a and 92d, and the first pads 92b and 92c are not connected to the wires 90b and 90 c. Further, the wires 90b and 90c may be crimped to the adapter 91 by a wiring structure, and the wires 90b and 90c may be electrically connected to the first pads 92b and 92 c.
The adapter 91 is provided with two second pads, not shown, which are electrically connected to second contact portions, not shown, of the wires 90a and 90d, respectively, by bringing the wires 90a and 90d into pressure contact with the adapter 91. The adapter 91 further includes two second pads (not shown) between the two second pads, and the two second pads are not connected to the wires 90b and 90 c. The four second pads are disposed oppositely to the first pads 92a to 92 d.
In the adaptor 91, a hole 93a is provided between the first contact portion and the second contact portion of the electric wire 90a, and the first contact portion and the second contact portion of the electric wire 90a are separated by the hole (separation portion) 93 a. That is, the separating portion disconnects the electric wire 90a between the first contact portion and the second contact portion. Similarly, in the adaptor 91, a hole 93d is provided between the first contact portion and the second contact portion of the electric wire 90d, and the first contact portion and the second contact portion of the electric wire 90d are separated by the hole (separation portion) 93 d. On the other hand, in the adapter 91, the first contact portion and the second contact portion are not provided in the wires 90b and 90c, and the wires 90b and 90c are not disconnected. In the adapter 91 shown in fig. 76, the holes 93a and 93d are provided at the positions where the wires 90a and 90d are separated by the separation portions as shown in fig. 77 (a), but the holes 93B and 93c may be provided at the positions where the wires 90B and 90c are not separated as shown in fig. 77 (B).
In this case, one end of the electric wire 90a and one end of the electric wire 90b are bridged by a terminal structure, not shown, and the other end of the electric wire 90a and the other end of the electric wire 90b are connected to a control board, not shown, via an adapter, a connector, and the like. Similarly, one end of the electric wire 90c and one end of the electric wire 90d are bridged by a terminal structure, not shown, and the other end of the electric wire 90c and the other end of the electric wire 90d are connected to a control board, not shown, via an adapter, a connector, and the like.
As shown in fig. 76 (a), the connector 89 includes four first contacts 94a to 94d and four second contacts 95a to 95d provided to face each other. The first contacts 94a to 94d are connected to the first pads 92a to 92d by fitting the adapter 91 to the connector 89. Similarly, the second contacts 95a to 95d are connected to the four second pads of the adapter 91 by fitting the adapter 91 to the connector 89.
The light emitting element substrate 88 and the wires 90a and 90d are electrically connected by fitting the adapter 91 (the first pads 92a to 92d and the four second pads) to the connector 89 (the first contacts 94a to 94d and the second contacts 95a to 95d), and the light emitting element substrate 88 and the control substrate are electrically connected through the wires 90a to 90 d.
In addition, in each of the above embodiments, the description has been given taking as an example an adapter provided with a first contact portion and a second contact portion that are arranged to face away from each other, but for example, an adapter provided with a first contact portion and a second contact portion as shown in fig. 78 and 79 may be used. In fig. 78 and 79, the FFC having four conductors is provided, and the light-emitting elements are divided into two to control light emission, but the FFC may have a configuration having three or less conductors or five or more conductors. In the case of collectively controlling light emission of a plurality of light emitting elements, when light emission control is performed by dividing the light emitting elements into three or more parts, the wiring structure shown in fig. 78 and 79 may be used.
As shown in fig. 78, the wiring structure 96 includes a light-emitting element substrate 88 on which a plurality of light-emitting elements 5, not shown, are mounted, a connector 99 mounted on the light-emitting element substrate 88, and an adapter 97 mounted on the FFC 98. Fig. 79 is a diagram showing the structure of the adapter 97, and particularly shows the structure of a fitting portion to be fitted to the connector 99. The FFC98 is composed of four conductors 102a to 102d, a cover film 103 covering the surfaces of the conductors 102a to 102d, and a base film covering the back surfaces of the conductors 102a to 102 d. In fig. 79, the portions of the conductors 102a to 102d shown by broken lines are portions covered with the cover film 103 and the base film. One end of the conductor 102a and one end of the conductor 102b are bridged by a terminal structure, not shown, and the other end of the conductor 102a and the other end of the conductor 102b are connected to a control board, not shown, via an adapter connector or the like. Similarly, one end of the conductor 102c and one end of the conductor 102d are bridged by a terminal structure, not shown, and the other end of the conductor 102c and the other end of the conductor 102d are connected to a control board, not shown, via an adapter, a connector, or the like.
The adapter 97 is fitted to the connector 99, and includes a first contact portion 105a and a second contact portion 106a in which the conductor 102a is exposed, and a first contact portion 105d and a second contact portion 106d in which the conductor 102d is exposed. The connection surfaces of the first contact portions 105a and 105d and the second contact portions 106a and 106b are exposed in the same direction. The first contact portion 105a is formed by providing an opening 108a in the cover film 103 to expose the conductor 102 a. The second contact portion 106a is formed by providing an opening 109a in the cover film 103 to expose the conductor 102 a. The first contact portion 105a and the second contact portion 106a are separated by a separation portion 107 a. Similarly, the first contact portion 105d is formed by providing an opening 108d in the cover film 103 to expose the conductor 102 d. The second contact portion 106d is formed by providing an opening 109d in the cover film 103 to expose the conductor 102 d. The first contact portion 105d and the second contact portion 106d are separated by a separation portion 107 d. On the other hand, the conductors 102b and 102c do not have the first contact portion, the second contact portion, and the separation portion. The adapter (housing) 97 is fixed to the first contact portions 105a and 105d and the back sides of the first contact portions 106a and 106 d.
As shown in fig. 78, the connector 99 includes four first contacts 100a to 100d and four second contacts 101a to 101d, which expose contact points in the same direction. The first contacts 100a and 100d are connected to the first contact portions 105a and 105d, respectively, by fitting the adapter 97 to the connector 99. Similarly, the second contacts 101a and 101d are connected to the second contact portions 106a and 106d, respectively, by fitting the adapter 97 to the connector 99. By fitting the adapter 97 to the connector 99, the light-emitting element substrate 88 and the FFC98 are electrically connected, and the light-emitting element substrate 88 and the control substrate are electrically connected via the FFC 98.
According to the wiring structures of the second to seventh embodiments, for example, automatic assembly by a robot or the like, easy assembly of automatic wiring, and easy wiring can be realized. Further, since the FFC is used instead of the substrate, cost reduction can be achieved.
Further, according to the wiring structure of each of the above embodiments, since the adapter is pressed into the connector from the direction intersecting the longitudinal direction of the FFC (conductor) to be fitted with the connector (since vertical fitting is performed), it is possible to easily perform automatic assembly by a robot or the like, easy assembly of automatic wiring, and easy wiring, for example.
Although the wiring structure 96 shown in fig. 78 and 79 has a terminal structure at one end of the conductors 102a to 102d, a wiring structure in which, for example, an FFC similar to the wiring structure of the third and sixth embodiments described above is folded back may be used instead of the terminal structure.
In addition, the termination structure 115 shown in fig. 80 and 81 or the termination structure 119 shown in fig. 82 and 83 may be employed instead of the termination structures of the second and seventh embodiments. Although the termination structures 115 and 119 bridge the four- core FFCs 111 and 121 in fig. 80 to 83, the configuration of the termination structures 115 and 119 may be used when two or more-core FFCs are bridged.
Fig. 80 (a) is a diagram showing the structure of the terminal structure 115, fig. 80 (B) is a sectional view taken along a line a-a of fig. 80 (a), fig. 80 (C) is a sectional view taken along a line B-B of fig. 80 (a), and fig. 81 is an exploded view showing the structure of the terminal structure 115. The terminal structure 115 has a housing 110 and two contacts 118a and 118b, and the contacts 118a and 118b are pressed into the housing 110. The housing 110 includes an insertion port 117 into which the FFC111 is inserted and a locking portion 113 that locks the FFC 111. When the FFC111 is inserted through the insertion port 117, the locking portion 113 engages with the opening portion 114 provided in the FFC111, thereby preventing the FFC111 from coming off the insertion port 117. The contacts 118a and 118b include holding portions 112a to 112h for holding the FFC 111. The clamping portions 112a and 112e clamp the contact portion 116a portion of the FFC111, and the clamping portion 112a also functions as a contact portion electrically connected to the contact portion 116 a. Similarly, the portions of the contact portion 116b are sandwiched by the sandwiching portions 112b and 112f, the portions of the contact portion 116c are sandwiched by the sandwiching portions 112c and 112g, the portions of the contact portion 116d are sandwiched by the sandwiching portions 112d and 112h, the sandwiching portion 112b also functions as a contact portion electrically connected to the contact portion 116b, the sandwiching portion 112c also functions as a contact portion electrically connected to the contact portion 116c, and the sandwiching portion 112d also functions as a contact portion electrically connected to the contact portion 116 d. That is, the contact 118a bridges a conductor including the contact portion 116a connected to the sandwiching portion (contact portion) 112a and a conductor including the contact portion 116b connected to the sandwiching portion (contact portion) 112b, and the contact 118b bridges a conductor including the contact portion 116c connected to the sandwiching portion (contact portion) 112c and a conductor including the contact portion 116d connected to the sandwiching portion (contact portion) 112 d.
Fig. 82 (a) is a diagram showing the structure of the termination structure 119, fig. 82 (B) is a sectional view taken along a line a-a of fig. 82 (a), fig. 82 (C) is a sectional view taken along a line B-B of fig. 82 (a), and fig. 83 is an exploded view showing the structure of the termination structure 119. The terminal structure 119 includes a housing 120 and two contacts 121a and 121b, and the contacts 121a and 121b are pressed into the housing 120. The housing 120 includes an insertion port 123 into which the FFC121 is inserted. The contacts 121a and 121b include two locking portions 124a and 124b for locking the FFC121, and holding portions 122a to 122h for holding the FFC 121. The engaging portion 124a is formed between the clamping portions 122e and 122f, and the engaging portion 124b is formed between the clamping portions 122g and 122 h. When the FFC121 is inserted through the insertion port 123, the locking portions 124a and 124b engage with two openings 125a and 125b provided in the FFC121, respectively, thereby preventing the FFC121 from being removed from the insertion port 123. The opening 125a is formed between the contact portions 126a and 126b, and the opening 125b is formed between the contact portion 126c and the contact portion 126 d.
The clamping portions 122a and 122e clamp the contact portion 126a portion of the FFC121, and the clamping portion 122a also functions as a contact portion electrically connected to the contact portion 126 a. Similarly, the portions of the contact portions 126b are sandwiched by the sandwiching portions 122b and 122f, the portions of the contact portions 126c are sandwiched by the sandwiching portions 122c and 122g, the portions of the contact portions 126d are sandwiched by the sandwiching portions 122d and 122h, the sandwiching portion 122b also functions as a contact portion electrically connected to the contact portion 126b, the sandwiching portion 122c also functions as a contact portion electrically connected to the contact portion 126c, and the sandwiching portion 122d also functions as a contact portion electrically connected to the contact portion 126 d. That is, the contact 121a bridges a conductor including the contact portion 126a connected to the holding portion (contact portion) 122a and a conductor including the contact portion 126b connected to the holding portion (contact portion) 122b, and the contact 121b bridges a conductor including the contact portion 126c connected to the holding portion (contact portion) 122c and a conductor including the contact portion 126d connected to the holding portion (contact portion) 122 d.
According to the termination structure 119, the locking portions 124a and 124b for preventing the FFC121 from coming off are provided not in the case 120 made of resin but in the contacts 121a and 121b made of metal. Therefore, the structure (shape) of the housing 120 can be simplified. Further, since the metal is locked, the locking strength can be improved.
In addition, the adapter 127 shown in fig. 84 to 87 may be used instead of the adapter of the above embodiment. Fig. 84 is a view showing a state before the FFC128 is attached to the adapter 127, fig. 85 is a view showing a state where the FFC128 is attached to the adapter 127, fig. 86 is a view showing a state where the adapter 127 is fitted to the connector 138 attached to the light emitting element substrate 135, and fig. 87 is a sectional view taken along a-a of fig. 86. Locking structures for preventing the adapter 127 from being disengaged from the connector 138 when fitted to the connector 138 are provided on both sides of the adapter 127. The locking structure is coupled to one side portion of the adapter 127 main body by the fixing portions 134a and 134b, and is fixed to the adapter 127 main body. The locking structure is coupled to the other side portion of the adapter 127 main body by the fixing portions 134c and 134d, and is fixed to the adapter 127 main body.
The locking structure includes an operation portion 129a, a spring portion (elastic portion) 133a, and a locking portion (locking portion) 136a on one side portion of the adapter 127, and includes an operation portion 129b, a spring portion (elastic portion) 133b, and a locking portion (locking portion) 136b on the other side portion of the adapter 127. As a function, the locking portions 136a and 136b move outward by insertion, the spring portions 133a and 133b elastically deform and return, and the spring portions 133a and 133b elastically deform and unlock by operating the operating portions 129a and 129. The direction of operation is opposite to the direction of outward movement. That is, the operation portions 129a and 129b are pressed inward, and the locking portions 136a and 136b move outward. To generate this action, a fulcrum is required between the operation portions 129a and 129b and the locking portions 136a and 136 b.
The locking formation is typically mounted on the cable side of the plug connector. Formed in pairs on both sides. Of course, there is a joint between the locking formation and the plug connector. As a general locking structure, the connecting portion functions as a fulcrum. The elastic portion exists around the fulcrum. In contrast, in the lock structure shown in fig. 84 to 87, the connection portions 134a and 134b are located at both left and right ends with respect to the relationship between the operation portions 129a and 129b and the lock portions 136a and 136 b. The fulcrums 132a and 132b are formed by abutting the projections against the surface of the mating connector on the lock structure side. The spring portions 133a and 133b are located between the supporting points 132a and 132b and the left and right connecting portions 134a and 134b at the center.
In the manufacturing process of the wiring structure, first, the light emitting element substrate 135 on which the connector 138 is mounted on the mounting member 137, and then the FFC128 is disposed on the mounting member 137 such that the adapter 127 is positioned above the connector 138. Next, when the upper surface of the adapter 127 is pressed against the connector 138, the locking portion 136a is pivoted outward by the elastic force of the elastic portion 133a about the fulcrum 132a, and similarly, the locking portion 136b is pivoted outward by the elastic force of the elastic portion 133b about the fulcrum 132 b. Then, the adapter 127 is inserted into the connector 138, the locking portion 136a engages with the engagement portion 139a of the connector 138, the locking portion 136b engages with the engagement portion 139b of the connector 138, and the adapter 127 is locked to the connector 138.
On the other hand, when the adapter 127 is removed from the connector 138, when the force points 129a and 129b are respectively applied with a force toward the center portion of the adapter 127, the elastic force of the elastic portion 133a pivots outward about the fulcrum 132a, and similarly, the elastic force of the elastic portion 133b pivots outward about the fulcrum 132b, so that the engagement between the locking portion 136a and the engagement portion 139a and the engagement between the locking portion 136b and the engagement portion 139b are released, and the adapter 127 can be removed from the connector 138. In this case, by separately providing the fixing portions 134a to 134d and the fulcrums 132a and 132b for fixing the locking portions to the main body of the adapter 127, the size of the adapter 127, particularly the height in the plane of the FFC128, can be reduced compared to the conventional art.
The adapter 127 includes eight projections 130a to 130h and two projections not shown on the surface to which the FFC128 is fixed. Two not-shown protrusions are provided between the protrusions 130a and 130b and the protrusions 130c and 130 d. When the FFC128 is attached to the adapter 127, the FFC128 is fixed to the adapter 127 by opening eight holes 131a to 131h and two holes, not shown, in advance in the FFC128, inserting the corresponding projections and holes, that is, inserting the projection 130a into the hole 131a, similarly inserting the projection 130b into the hole 131b, inserting the projection 130c into the hole 131c, inserting the projection 130d into the hole 131d, inserting the projection 130e into the hole 131e, inserting the projection 130f into the hole 131f, inserting the projection 130g into the hole 131g, inserting the projection 130h into the hole 131h, inserting the projection, not shown, into the hole, not shown, and then mechanically crushing the upper portions of the projections 130a to 130h (see fig. 85). Instead of the method of mechanically flattening the protrusion, the FFC128 may be fixed to the adapter 127 by flattening the protrusion with ultrasonic waves. The projections 130a to 130h and the holes 131a to 131h position the FFC128 with respect to the adapter 127, and fix the FFC128 to the adapter 127. In fig. 84 to 87, the contact portion where the conductor of the FFC128 is exposed is not shown.
In addition, the adapter 200 shown in fig. 88 and 89 can be used instead of the adapters of the above embodiments. Fig. 88 is a diagram showing a state in which the FFC141 is attached to the adapter 200, and fig. 89 is a diagram showing a state before the FFC141 is attached to the adapter 200. The adapter 200 is composed of an adapter body 140 and a fixing member 142. The adapter body 140 has engaging portions 144a and 144b on one side and an engaging portion, not shown, on the other side. The adapter body 140 includes six protrusions 146 on a surface to which the FFC141 is fixed. The adapter body 140 is provided with rod-shaped portions 145a and 145c at the upper portion and rod-shaped portions 145b and 145d at the lower portion.
The fixing member 142 is provided with locking portions 143a and 143b on one side thereof, and a locking portion 143c and a locking portion not shown on the other side thereof. The fixing member 142 is provided with two through holes 143c and 143d and two through holes not shown.
When the FFC141 is attached to the adapter main body portion 140, six holes 147 are formed in the FFC141 in advance, and the adapter main body portion 140 and the FFC141 are positioned by inserting the corresponding projections 146 through the holes 147, that is, by inserting the corresponding projections 146 through the respective holes 147. After the FFC141 is positioned with respect to the adapter body 140, the rod-shaped portions 145a to 145d of the adapter body 140 are inserted through the through holes 199c and 199d of the fixing member 142 and two through holes not shown, respectively, thereby positioning the adapter body 140 and the fixing member 142. After the fixing member 142 is positioned with respect to the adapter body 140, the fixing member 142 is pressed from above toward the adapter body 140, whereby the engaging portions 143a to 143c and the engaging portions not shown are engaged with the corresponding engaging portions 144a and 144b or two engaging portions not shown, respectively, the fixing member 142 is fixed to the adapter 140, and the FFC141 is fixed to the adapter body 140. In fig. 88 and 89, a contact portion where the conductor of the FFC141 is exposed is not shown.
In addition, instead of the power adapter and the power connector that connect the FFC of each of the above embodiments to the power board (control board), the power adapter 147 and the power connector 151 shown in fig. 90 to 92 may be used. Fig. 90 is a diagram showing the shape of the power supply connector 151 corresponding to two circuits, and a diagram showing a state in which the power supply adapter 147 is fitted to the power supply connector 15, fig. 91 is an exploded view for explaining the configuration of the power supply connector 151, and fig. 92 is an exploded view for explaining the configuration of the power supply adapter 147.
In the example shown in fig. 90 to 93, the FFC158 incorporated in the power adapter 147 has four parallel conductors, and has first contact portions 160a and 160b, a second contact portion (not shown), and a disconnection portion (a separation portion 177 and a separation portion (not shown)) on both sides. The first contacts 160a and 160b and the second contacts face away from each other, and the separating portion 177 and a separating portion, not shown, separate the first contacts 160a and 160b from the second contacts. On the other hand, the two conductors at the center have no disconnection portion, are through, and are not electrically connected to the power supply connector 151. The first and second contact portions 160a and 160b and broken by the breaking portion are + and-. For example, a signal input from the first contact portion 160a on the minus side of pin No. 1 is terminated at one end of the FFC158 and pin No. 2, passes through the power adapter 147, is terminated at the other end of the FFC158, and is connected to the power connector 151 mounted on the power board 150 via pin No. 1 from the second contact portion on the plus side of the power adapter 147. In this example, the configuration corresponding to two circuit blocks.
The power adapter 147 includes an adapter body 155 into which the mounting member 149 is flexibly fitted and a fixing member 157 fitted into the adapter body 155. The adapter body 155 includes two locking portions 156a and 156b for fixing to the mounting member 149 and two locking portions not shown. The adapter body 155 includes elastic portions 178a and 178c and two elastic portions not shown. The elastic portion 178a is disposed in the vicinity of the locking portion 156a, the elastic portion 178c is disposed in the vicinity of the locking portion not shown, and the elastic portion not shown is disposed in the vicinity of the locking portion 156b and the locking portion not shown. The adapter body 155 has rectangular openings 179 and 180 and two openings not shown in the drawing in a surface on the side where the opening 148 of the mounting member 149 is inserted. The adapter body 155 is provided with a guide portion 184 for guiding the power adapter 147 to the opening 148 of the mounting member 149 within the surface on the side of the opening 148 into which the mounting member 149 is inserted.
Further, relay inspection contacts 159a, 159b, 161a, and 161b made of metal are incorporated in the adapter body 155. The contact 181a of the contact 159a is connected to a second contact portion facing away from the first contact portion 160a, and the pad 182a of the contact 159a is disposed at a position contactable from an opening, not shown, of the adapter body 155. Similarly, the contact 181b of the contact 159b is connected to a second contact portion facing away from the first contact portion 160b, and the pad 182b of the contact 159b is disposed at a position contactable from the opening 180 of the adapter body 155. A contact point, not shown, of the contact 161a is connected to the first contact portion 160a, and the pad 183a of the contact 161a is disposed at a position contactable from an opening, not shown, of the adapter body 155. Similarly, a contact point, not shown, of the contact 161b is connected to the first contact portion 160b, and the pad 183b of the contact 161b is disposed at a position contactable from the opening 179 of the adapter body 155.
The power connector 151 is mounted on the power board 150, and includes a housing 152, first contacts 153a and 153b, and second contacts 154a and 154 b. The first contact 153a is connected to a first contact portion 160a of the power adapter 147, the first contact 153b is connected to a first contact portion 160b of the power adapter 147, the second contact 154a is connected to a second contact portion facing away from the first contact portion 160a, and the second contact 154b is connected to a second contact portion facing away from the first contact portion 160 b. The power adapter 147 and the power connector 151 are fitted in a direction substantially parallel to the mounting surface of the mounting member 149 (the substrate surface of the power board 150). The mounting member 149 has an opening 148. A power adapter 147 is disposed in the opening 148. The opening 148 is provided with engagement portions 148a to 148 d.
As a procedure for assembling the backlight device using the wiring structure shown in fig. 90 to 92, in a state where all the light emitting element substrates, not shown, are fixed to predetermined positions of the mounting member 149, a plurality of adapters, not shown, mounted on the FFC158 are fitted to connectors, not shown, mounted on the light emitting element substrates, and the power supply adapter 147 is fixed to the mounting member 149 while these are fitted.
Specifically, the guide portion 184 guides the power adapter 147 to the opening 148 of the mounting member 149. Then, the locking portion 156a of the power adapter 147 is fitted to the engagement portion 148a of the mounting member 149, the locking portion 156b of the power adapter 147 is fitted to the engagement portion 148bb of the mounting member 149, two locking portions, not shown, of the power adapter 147 are fitted to the engagement portions 148c and 148d of the mounting member 149, respectively, and the power adapter 147 is fixed to the mounting member 149. That is, the length of the opening 148 in the longitudinal direction of the FFC158 is longer than the length of the power adapter 147 and shorter than the locking amount of the locking portions 156a, 156b and the like. Therefore, the fixing portions (the engaging portions 156a and 156b and the two engaging portions (not shown)) of the power adapter 147 are movable in the horizontal direction with respect to the mounting surface of the mounting member 149, and elastically displaced to return to and engage with the mounting member 149. The fixed portion also has a function of returning to the original position when the power adapter 147 moves in the movable direction. That is, the power adapter 147 is movable in the longitudinal direction of the FFC158 with respect to the mounting member 149. Further, since the locking portions 156a, 156b and the like have elasticity in the longitudinal direction of the FFC158, the power adapter 147 can be returned to a predetermined position with respect to the mounting member 149 by these elastic forces. Further, the elastic portions (centering springs) 178a and 178c and two elastic portions (centering springs), not shown, are present in a direction 90 ° from the movable direction, and have a function of returning to the original position. That is, the power adapter 147 has a floating function and a centering function with respect to the mounting member 149.
Next, in a state where the connector mounted on the light emitting element substrate is fitted and the power adapter 147 is attached to the mounting member 149, lighting inspection of the light emitting element by energization is performed. Specifically, the inspection probes are brought into contact with the contact pads 182a, 182b, 183a, and 183b of the relay inspection contacts 159a, 159b, 161a, and 161b to conduct electricity. Then, the power supply board 150 is mounted from the horizontal direction to the mounting member 149 by inverting the mounting member 149 by 180 °.
In addition, instead of the adapter and the connector for connecting the FFC and the power supply board (control board) according to each of the above embodiments, the adapter 162 and the connector 171 shown in fig. 93 to 95 may be used. Fig. 93 (a) is a plan view showing a state in which the adapter 162 is fitted to the connector 171, fig. 93 (B) is a front view thereof, fig. 93 (C) is a sectional view B-B of fig. 93 (a), and fig. 93 (D) is a sectional view a-a of fig. 93 (a). Fig. 94 is an exploded view of the wiring structure shown in fig. 93, and fig. 95 is an exploded view of the adapter 162. In fig. 93 and 94, for the sake of convenience of explanation of the wiring structure, the mounting member 163 is shown to be smaller in size than the actual size, and the FFC164 is shown to be shorter in length than the actual length.
The adapter 162 fixed to the mounting member (metal plate) 163 has a fixing portion in the same manner as the power adapter 147 shown in fig. 90 to 92. The adapter 162 includes an adapter body 166 into which the mounting member 163 is flexibly fitted, and a fixing member 167 that is flexibly fitted into the adapter body 166. The adaptor body 166 includes four locking portions 173a to 173d for fixing to the mounting member 163. The engagement portion 173a is sandwiched between the two guide portions 172a, and the two guide portions 172a guide the engagement portion 173a toward the engagement portion 169a formed in the mounting member 163. Similarly, the locking portion 173b is sandwiched by the two guide portions 172b, the locking portion 173c is sandwiched by the two guide portions 172c, the locking portion 173d is sandwiched by the two guide portions 172d, and the guide portions 172b to 172d guide the locking portions 173b to 173d to the engagement portions 169b, 170a, and 170b formed in the mounting member 163, respectively. The adapter body 166 is formed with two slit portions, not shown, for slidably moving the guide rail 175 of the fixing member 167 and the like to attach the fixing member 167. The adapter body 166 includes two locking portions (lock portions) 174a and 174b, two locking portions 166a and 166c, an engaging portion 166d, and an engaging portion (not shown) for fixing the fixing member 167 and preventing the fixing member 167 from coming off.
The fixing member 167 includes a guide rail 175 for sliding movement in a slit portion, not shown, of the adapter body 166 and a guide rail, not shown. The fixing member 167 includes two engaging portions 167a and 167c for fixing to the adapter body portion 166, two engaging portions 167b and 167d, and two rectangular recesses, not shown. The FFC164 is mounted (attached) to the fixing member 167. That is, the fixing member (plug) 167 is fixed to the FFC 164.
The mounting member 163 is formed with three openings 168, 169, and 170. The opening 168 has a rectangular shape, and a fitting portion between the adapter 162 and the connector 171 is disposed in the opening 168. The openings 169 and 170 are provided for fixing the adapter 162 to the mounting member 163, and both side portions of the adapter body 166 are disposed in the openings 169 and 170. Engaging portions 169a and 169b are provided on opposite sides of the opening 169, and engaging portions 170a and 170b are provided on opposite sides of the opening 170. The connector 171 is mounted on the control board 165.
When the fixing member 167 is attached to the adapter body 166, the fixing member (plug) 164 is attached to the FFC164, and then attached to the adapter body 166 in a direction horizontal to the attachment member 163. That is, the guide rail 175 and the like are fitted into the slit portion and moved in the horizontal direction, and when the end surface of the fixing member 164 passes the distal ends of the locking portions (locking portions) 174a and 174b, it is elastically deformed in a direction of 90 ° to the moving direction, and returns to the original position after passing, thereby completing the locking. The fixing member 164 has a space on the inner side of the lock completion position, and the space is a movable region. At the time of this slide attachment, the locking portions 174a and 174b located in the slit portion of the adapter 162 function as push-back portions, that is, elastically deform and expand, and the V-shaped engaging portions 167a and 167b located at the center portion of the fixing member 164 are fitted to the distal ends of the locking portions 166a and 166 b.
Specifically, the fixing member 167 is slid into the adaptor body 166, and the guide rail 175 of the fixing member 167 and the guide rail not shown slide on two sliding portions not shown of the adaptor body 166. Then, the locking portions 174a and 174b of the adapter body 166 are fitted into the recesses, not shown, of the fixing member 167, the locking portion 166a of the adapter body 166 is fitted into the engaging portion 167a of the fixing member 167, the locking portion 167b of the fixing member 167 is fitted into the engaging portion, not shown, of the adapter body 166, the locking portion 166c of the adapter body 166 is fitted into the engaging portion 167c of the fixing member 167, and the locking portion 167d of the fixing member 167 is fitted into the engaging portion 166d of the adapter body 166, thereby preventing the fixing member 167 from coming off from the adapter body 166.
The engagement portions 167a and 167b of the V-shaped portion located at the center of the fixing member 164 are fitted to the tips of the engagement portions 166a and 166b, whereby the sliding direction and the 90 ° direction can be centered. If a space is provided in the slit portion with the guide rail 175 or the like, a movable region can be generated. That is, the length from the slit portion (not shown) to the slit portion of the adapter body portion 166 is longer (clearance) than the length from the guide rail 175 of the fixing member 167 to the guide rail (not shown), and the depth of the slit portion is so small that the guide rail 175 does not come off, but is so deep that the guide rail 175 can move by the clearance in the depth direction. Since the locking portions 166a and 166c and the locking portions 167b and 167d have elasticity in the width direction of the FFC164, the fixing member 167 is movable in the width direction of the FFC164 with respect to the adapter body 166 by these elastic forces, and can return to a predetermined position with respect to the adapter body 166. The fixing member 167 is capable of moving the amount of clearance between the engaging portions 174a and 174b and the recess, not shown, in a state where the abutting portions 176a and 176b of the fixing member 167 abut against the adapter body portion 166 in the longitudinal direction of the FFC 164. Then, the fixing member 167 can be returned to a predetermined position with respect to the adapter main body portion 166 by the elastic force of the engaging portions (push-back portions) 166a, 166c and the engaging portions (push-back portions) 167b, 167d (since the engaging portions 166a, 166c and the engaging portions 167b, 167d are engaged in a V-shape). That is, the fixing member 167 has a floating function and a centering function with respect to the adapter main body portion 166 in the longitudinal direction and the width direction of the FFC 164.
Further, the fixing member 164 may be provided with a slit portion, and the adapter body 166 may be provided with a guide rail. Further, the fixing member 164 may be provided with a push-back portion, and the adapter main body portion 166 may be provided with a V-shaped portion.
When the adaptor 162 is mounted on the mounting member 163, the guide portions 172a and 172b guide the locking portions 173a and 173b of the adaptor 162 to the engagement portions 169a and 169b of the opening 169, and the guide portions 172c and 172d guide the locking portions 173c and 173d of the adaptor 162 to the engagement portions 170a and 170b of the opening 170. Then, the locking portion 173a of the adapter body 166 is fitted to the engagement portion 169a of the mounting member 163, the locking portion 173b of the adapter body 166 is fitted to the engagement portion 169b of the mounting member 163, the locking portion 173c of the adapter body 166 is fitted to the engagement portion 170a of the mounting member 163, the locking portion 173d of the adapter body 166 is fitted to the engagement portion 170b of the mounting member 163, and the adapter 162 is fixed to the mounting member 163. The length of the openings 168 to 169 in the longitudinal direction of the FFC164 is longer than the length of the adapter body 166 and shorter than the locking amount of the locking portions 173a to 173 d. Therefore, the adapter 162 (adapter body portion 166) is movable in the longitudinal direction of the FFC164 with respect to the mounting member 163. Further, since the locking portions 173a to 173d have elasticity in the longitudinal direction of the FFC164, the adaptor 162 (adaptor body 166) can be returned to a predetermined position with respect to the mounting member 163 by these elastic forces. That is, the adapter 162 (adapter body 166) has a floating function and a centering function with respect to the mounting member 163.
According to the wiring structure shown in fig. 93 to 95, since the engagement portions 173a to 173d are provided between the guide portions 172a to 172d, the guide portions 172a to 172d can guide the engagement portions 173a to 173d to the engagement portions 169a, 169b, 170a, and 170 b. Therefore, the adapter 162 can be easily positioned with respect to the mounting member 163, and automatic assembly and automatic wiring by a robot or the like can be performed quickly and reliably. The chamfer amount can be set arbitrarily by increasing the chamfer amount of the guide portions 172a to 172d to increase the amount of insertion of the engagement portions 173a to 173d into the engagement portions 169a, 169b, 170a, and 170 b. In the wiring structure shown in fig. 93 to 95, the position of the adapter 162 with respect to the mounting member 163 is pushed back (centering function) by the same member (the locking portions 166a and 166c and the locking portions 167b and 167d) in both the sliding direction (the longitudinal direction of the FFC 164) and the 90 ° direction (the width direction of the FFC 164), but may be pushed back by a different member in the sliding direction and the 90 ° direction.
A method for manufacturing the wiring structure according to each of the above embodiments will be described. First, in a laminator, a plurality of first openings are formed at an arbitrary pitch in a cover film in one product (one FFC in a state of being assembled in an apparatus). And a second opening portion is formed. The first opening portions are formed in plural at an arbitrary pitch in one product (one FFC). The first opening is an opening for exposing a contact portion that contacts a contact of a connector mounted on the light emitting element substrate. The first opening portion is formed by a punch of a press die. The first openings are formed in the same shape by repeating the first openings at a constant pitch. The first openings are not limited to a constant pitch, and may be formed at an arbitrary pitch. In the laminator, the cover film is always conveyed and punched at necessary timing.
Next, the laminator forms one (single) second opening portion having a shape different from the shape of the first opening portion between the cover film first opening portions (between the adjacent first opening portions and the first opening portion) in one product (one FFC in a state of being assembled to the apparatus). The second opening is an opening formed to expose a contact portion that comes into contact with a contact of a connector mounted on the power supply board (control board) in addition to the plurality of first openings. Two punches are used. In another example, the first openings are formed by shifting the positions of the first openings in the pitch direction and the width direction (see, for example, the positions of the separating portions 19a to 19h in fig. 44). In this case, the punching position of the press die is shifted in the pitch direction and shifted in the width direction. Punching is performed at necessary timing in the pitch direction. The step of forming these first opening and second opening is the first half of the laminating step.
Next, the cover film is attached to the surface of the conductor and the base film is attached to the back surface of the conductor in a state where the strip-shaped conductor, the cover film, and the base film are stretched in the longitudinal direction of the conductor (attaching step). The step of forming the first opening and the second opening and the attaching step are performed by arranging a plurality of products in a pitch direction (in a connected state) to the attaching step, and then dividing the products into individual products (cutting).
After the first opening and second opening forming step and the attaching step are performed by a laminator, the conductor exposed through the first opening and second opening is plated (plating step).
Next, holes for positioning and fixing the protruding portions of the case are formed around the first opening and the second opening (a punching step). Then, the conductor between the first contact portion made of the conductor exposed from the first opening and the second contact portion made of the conductor exposed from the first opening is separated (first separation step), and the conductor between the first contact portion made of the conductor exposed from the second opening and the second contact portion made of the conductor exposed from the second opening is separated (second separation step). The punching step, the first separation step, and the second separation step may be performed simultaneously. In these steps, at least one of the first contact portion and the second contact portion is sensed by a CCD camera, and a hole is formed by a punch. Accuracy is improved by using a CCD camera.
Next, an adapter (plug component) is mounted on the FFC manufactured in the above step (plug component mounting step). Specifically, a housing (resin member) is supplied by a parts feeder or the like (resin member supply step), a hole or a first opening portion formed in an FFC is recognized by a CCD camera, and a reference hole position of the FFC is aligned with a projection (projection) position of the resin member (alignment step), and a required shape (crank shape) is formed (forming step). In the forming step, the punch based on the shape is pressed from the setting direction. In this case, the resin component itself functions as a receiving base. The FFC formed into a shape based on the resin shape by the punch is disposed so as to penetrate through the projections (for example, projections 130a to 130h in fig. 84) located on the bottom surface. The FFC is fixed to the case by flattening the tip of the projection (protrusion) of the resin component (case) (fixing step). As a method of flattening the tip of the protrusion, ultrasonic or mechanical flattening methods are available. As another method, there is a structure in which a component different from the housing is fixed to the plug so as to cover the FFC.
Next, a terminal structure is formed by bridging and terminating the target conductor solder (see, for example, terminal structures 115 and 119 in fig. 80 to 83) (a terminal step). The terminal connector holds a contact (contact), and has a housing for receiving the FFC cable and a contact having elasticity for contacting a conductor to be a target, and the contact is formed integrally with a contact for contacting another conductor. The terminal connector is inserted from the front end side of the FFC and has a retaining structure. The FFC is provided with a locking hole, and there are a structure in which a molded part is provided with a locking spring, a structure in which a locking part is integrally formed at the center of two contacts, and the like. In order to improve the insertion property, a reinforcing plate may be attached to the back surface of the FFC in a portion where the connector is inserted.
Fig. 96 is a diagram showing a state in which the flexible flat cable shown in fig. 20 is wound in a roll shape as a bundle package. The flexible flat cable is used by pulling out and cutting a product amount from a reel. The conductor between products is pulled out in advance as a preparation, and only the film portion between products is cut. In the other FFC, as shown in fig. 76, the FFC may be wound in a roll shape as a bundle package, and may be used by being pulled out from the roll and cut.
In the above embodiments, the case where the wiring structure of the present invention is applied to the lighting device (backlight device) has been described as an example, but the wiring structure of the present invention can be applied to electronic equipment (for example, a vehicle) other than the lighting device.
Description of the reference symbols
1. 1 ', 7 ', 7a, 7b, 32 ', 65 ', 65a, 164 … FFC, 2, 9 ', 66, 75, 85, 89, 171 … connector, 3, 31 ', … lighting device, 5a to 5t … light emitting element, 6 ', 6a to 6d, 74a to 74c, 88 … light emitting element substrate, 8, 35 ', 35a to 35d, 35a ' to 35d ', 55, 57 ', 57a to 57d, 57a ' to 57c ', 84a to 84c, 91, 162, 200 … adapter, 10 ', 163 … mounting component, 10a, 10b … slot, 10c to 10f, 10c ', 168, 169, 170, … opening, 11, 33, 47, 50 to 53, 67a, 67b, 81a to 81d … conductor, 11a, 50c to 50b, 82953 g, 50b, 53b, 50c, 53b … conductor, 51d, 52f, 53h … second conductor parts, 12a to 12d, 58a to 58d, 59a to 59d, 60a to 60t, 69a, 69b … input pads, 13, 34 … cover films, 14a, 62a to 62f, 63 … circuit patterns, 15 … base film, 16a, 16b … engaged parts, 17a, 37a to 37h, 78a to 78t, 100a, 100b … first contact parts, 17b, 39a to 39h, 77a to 77t, 83a to 83d, 86a to 86t, 100c, 100d … second contact parts, 18 … surfaces, 19a to 19h, 36a to 36d, 36a 'to 36 d', 76a to 76t, 82a, 82c … separation parts, 20 ', 28', 64 … casing, 21a, 21b, 21a to 7d, 172a to 172d, 53922 a, 22a to 22a, 22a to 38a, … a, and … folded back guide parts, 49a, 49b, 70a, 70b, 80a to 80t … first contacts, 24b, 40a to 40h, 54a, 54b, 71a, 71b, 79a to 79t … second contacts, 25, 41a to 41h … linking portions, 26 … power supply substrate, 26 '… control substrate, 27 … extra length absorbing portion, 29a, 29b … locking portion, 30a to 30d, 58a to 58t, 60a to 60d, 61a to 61d, 69c, 69d … output pad, 42, 165 … control substrate, 43a, 43b … operating portion, 44a, 44b, 166a to 166d, 173a to 173d … locking portion, 45a, 45b, 46a, 46b … elastic portion, 48a, 48b …', terminal pad structure, 56b 68, … wiring structure, 72a, 632 contact portion, 72a to … t … a, 90a to 59690 d, 93a to 93d 638 a, 93a to 93d 638 d, 93a to 93d … d, 166 … adapter body part, 167 … fixing member, 167a to 167d, 169a, 169b, 170a, 170b … engaging part, 199c, 199d … through hole.

Claims (16)

1. A wiring structure is characterized by comprising:
a first contact portion formed by exposing a first conductor covered with an insulator from the insulator;
a second contact portion formed by exposing the first conductor from the insulator; and
a separating portion that separates the first conductor between the first contact portion and the second contact portion,
the first contact portion is electrically connected to a first contact of the connector,
the second contact portion is electrically connected with a second contact of the connector different from the first contact.
2. The wiring structure according to claim 1,
the wiring structure further includes a circuit board on which the connector is mounted,
the first contact portion is electrically connected to the second contact portion via the circuit substrate.
3. The wiring structure according to claim 2,
the wiring structure includes a plurality of the first contact portions and the second contact portions,
at least one of the first contact portion and the second contact portion is electrically connected through the circuit substrate,
one of the first contact portion and the second contact portion is not electrically connected to form a circuit.
4. The wiring structure according to any one of claims 1 to 3,
the wiring structure includes a second conductor that is parallel to the first conductor and is not separated by the separation portion,
one end of the first conductor is coupled to one end of the second conductor.
5. The wiring structure according to any one of claims 1 to 4,
the first conductor is a strip-shaped conductor, and is sandwiched between the cover film and the base film, which are the insulator.
6. The wiring structure according to any one of claims 1 to 4,
the first conductor is a wire and is covered with a coating layer as the insulator.
7. The wiring structure according to any one of claims 1 to 6,
the first contact portion and the second contact portion face away from each other,
a housing for fixing the first contact portion and the second contact portion is provided in a space formed by the first contact portion, the separation portion, and the second contact portion.
8. The wiring structure according to any one of claims 1 to 6,
the first contact portion and the second contact portion are exposed in the same direction,
a housing for fixing the first contact portion and the second contact portion is provided on the back side of the first contact portion and the second contact portion.
9. The wiring structure according to any one of claims 1 to 8,
the adapter including the first contact portion, the second contact portion, and the separation portion is fitted to the connector by being press-fitted into the connector from a direction intersecting a longitudinal direction of the conductor.
10. The wiring structure according to any one of claims 1 to 9,
the wiring structure includes a guide portion that guides connection between the first contact and the first contact portion and connection between the second contact and the second contact portion.
11. The wiring structure according to any one of claims 2 to 10,
the circuit board includes:
a first circuit pattern;
a first input pad connected to the first contact at one end of the circuit board, the first input pad being one of two or more first input pads formed at the one end of the circuit board; and
a first output pad connected to the second contact at one end of the circuit board,
the two or more first input pads are respectively connected in parallel to one terminal of the first circuit pattern,
the two or more first output pads are respectively connected in parallel to the other terminal of the first circuit pattern.
12. The wiring structure according to claim 11,
the connector is provided with a third contact and a fourth contact,
the circuit board includes:
a second circuit pattern formed inside the first circuit pattern;
a second input pad connected to the third contact, one of two or more second input pads formed at one end of the circuit board; and
a second output pad, one of the two or more second output pads formed at one end of the circuit substrate being connected to the fourth contact,
the two or more second input pads are respectively connected in parallel to one terminal of the second circuit pattern formed inside one terminal of the first circuit pattern,
the two or more second output pads are respectively connected in parallel to the other terminal of the second circuit pattern formed inside the other terminal of the first circuit pattern.
13. The wiring structure according to claim 12,
the wiring structure includes two or more of the first circuit patterns and two or more of the second circuit patterns,
one of the first circuit patterns and one of the second circuit patterns are formed outside the other of the first circuit patterns and the other of the second circuit patterns.
14. The wiring structure according to claim 12,
the wiring structure includes two or more of the first circuit patterns and two or more of the second circuit patterns,
one of the second circuit patterns is formed between one of the first circuit patterns and the other of the first circuit patterns.
15. An illumination device is characterized by comprising:
the wiring structure according to any one of claims 2 to 14;
a plurality of light emitting elements;
a control substrate for controlling light emission of the light emitting element;
a plurality of first contacts, a plurality of second contacts, and a plurality of separators arranged in a longitudinal direction of the first conductor; and
a plurality of the circuit substrates are arranged in a row,
the plurality of circuit boards are respectively provided with at least one light emitting element,
the plurality of first contact portions are electrically connected to the plurality of second contact portions via any one of the plurality of circuit boards,
the first conductor relays electrical connection between the plurality of circuit boards and the control board.
16. A method for manufacturing a wiring structure, comprising:
a first opening forming step of forming a plurality of first openings at an arbitrary pitch in a single product on a cover film;
a second opening forming step of forming a second opening having a shape different from the shape of the first opening at a predetermined position on the cover film in one product;
a sticking step of sticking the cover film to the surface of the conductor and the base film to the back surface of the conductor in a state where the strip-shaped conductor, the cover film, and the base film are stretched in the longitudinal direction of the conductor;
a first separation step of separating the conductor between a first contact portion formed of the conductor exposed through the first opening and a second contact portion formed of the conductor exposed through the first opening; and
and a second separation step of separating the conductor between a first contact portion formed of the conductor exposed from the second opening and a second contact portion formed of the conductor exposed from the second opening.
CN201980006965.2A 2018-06-01 2019-05-31 Wiring structure, lighting device, and method for manufacturing wiring structure Pending CN111557064A (en)

Applications Claiming Priority (5)

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JP2018-106065 2018-06-01
JP2018106065 2018-06-01
JP2018170213 2018-09-12
JP2018-170213 2018-09-12
PCT/JP2019/021722 WO2019230950A1 (en) 2018-06-01 2019-05-31 Wiring structure, lighting device, and method for manufacturing wiring structure

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