JPH09237051A - Wiring connection board for display element, display element module, display unit and display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve space efficiency, to facilitate connection work and to simplify a structure in the connecting structure of a display element and its lighting control circuit. SOLUTION: A flexible printed circuit board 8 is provided with a bending part 9 in its approximately central part and is provided with junctures 10 on its two sides. Display element side wiring parts 13 connected to plural pieces of the elements 2 disposed in two arrays on the rear surface of the display element 1 are formed at the junctures 10. Connector side wiring patterns 15 which are connected to the display element side wiring patterns 13 with a prescribed correspondent relation and form a card edge connector 6 by bending the bending part 9 via a reinforcing plate 17 are formed on both sides across the bending part 9. Then, the structure of a small size having the excellent space efficiency is obtd. and its structure itself is made simple. All the terminals 2 in the one display element 1 are connected by one operation to the lighting control circuit by one card edge connector 6 and, therefore, the connection work is easy.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a large-sized display device used in a baseball field, a stadium, etc., and relates to a display element wiring connection board, a display element module, and a display unit used in the display apparatus.

[0002]

2. Description of the Related Art Conventionally, in a large-sized display device used in a baseball field, a stadium, etc., a display element having a plurality of light-emitting elements arranged in a matrix is formed as a display element module. By arranging a large number of the display element modules in a matrix, a display unit is formed, and a plurality of the display units are collected to form a display device, and each light emitting element is driven and controlled by a lighting control circuit. There is a structure in which a predetermined character or image is drawn. In a display device having such a structure, it is general to connect a light emitting element to a lighting control circuit in units of each display element, and as a connection structure therefor, a structure including a printed wiring board and a connector is widely used. Has been.

FIG. 10 is a perspective view showing an example of a conventional connection structure of a display element and its lighting control circuit. Display element 5 including a light emitting element (not shown) formed of a light emitting diode
1 has a plurality of anode terminals 52 on its back surface.
These anode terminals 52 are arranged in two lines on a straight line. A wiring pattern (not shown) formed on the printed wiring board 53 is connected to the anode terminals 52 of each column by soldering. As a result, the printed wiring board 53 is also fixed to the back surface of the display element 51.
Then, on the printed wiring board 53, a plurality of male connectors 54 are connected to the wiring pattern via a harness 55. Therefore, the display element 51 is connected to the lighting control circuit 56 by inserting and coupling each male connector 54 into the female connector 57 on the lighting control circuit 56 side.

A cathode terminal 58 of the light emitting element is also provided on the back surface of the display element 51, and the cathode terminal 58 is separately wired from the printed wiring board 53. A control IC (not shown) for matrix-driving each light emitting element is mounted on the printed wiring board 53.

[0005]

SUMMARY OF THE INVENTION In a large display device,
A large number of display elements 51 as illustrated in FIG. 10 are provided. Therefore, firstly, in the connection structure of each display element 51 and the lighting control circuit 56 illustrated in FIG. 10, a large amount of connectors 54 and 57 and the harness 55 are required, and thus a large mounting space is required. However, there is a problem that the device becomes large. Second, many connectors 5
Since it is necessary to surely couple 4, 57, the work for that is complicated, and there is also a problem that poor coupling is apt to occur. Thirdly, due to the structure in which the male connector 54 is connected to the wiring pattern in the printed wiring board 53 via the harness 55, there is a problem that the manufacturing thereof is complicated and takes time.

Japanese Utility Model Laid-Open No. 62-2023 discloses an invention in which a flexible edge connector is formed at an end of a flexible printed wiring board as a connector for a liquid crystal display device. Further, in the device illustrated in FIG. 10, the printed wiring board 53 and the harness 55 are
Japanese Unexamined Patent Publication No. 22221/1996 discloses a fluorescent lamp for display having a structure in which is replaced with a flexible printed wiring board and the male connector 54 is replaced with a flexible edge connector formed on the flexible printed wiring board. However, in this case, since the flexible edge connector has two upper and lower stages, a problem arises as to how to connect the flexible edge connector to the connector on the lighting control circuit side. Moreover, considering the withstand voltage performance required for a large-sized display device using the display element 51 as illustrated in FIG. 10, a female connector on the lighting control circuit side into which a flexible edge connector is inserted and coupled is sufficient. Insulation distance cannot be secured. On the other hand, if a female connector that can secure a sufficient insulation distance is prepared, it will cause a significant increase in component cost.
Not realistic.

[0007]

According to a first aspect of the present invention, there is provided a wiring connection substrate for a display element, wherein a bent portion is located at a substantially central portion and is bent; and two sides which are adjacent to each other when the bent portion is bent. A connecting portion located on the backside of the display element having a plurality of light emitting elements arranged in a matrix in the connecting portion Display element side wiring pattern to be connected;
A connector side wiring pattern that is formed on both sides of the bent portion and is connected to the display element side wiring pattern with a predetermined correspondence, and the bending portion is bent through a reinforcing plate to form a card edge connector. A flexible printed wiring board provided with; In such a display element wiring connection board, a card edge connector having a connector-side wiring pattern is formed by bending a bent portion through a reinforcing plate. Then, by connecting the display element side wiring patterns formed in the two connecting portions to the two terminal rows of the display element, the wiring connection board with the connector is attached to the display element. Therefore, by inserting and connecting the card edge connector to the female connector on the lighting control circuit side, the lighting control circuit and the display element are connected.

According to the first aspect of the present invention, since the connection structure between the display element and the lighting control circuit is completed only by the flexible printed wiring board and the reinforcing plate, the structure is downsized and the space is reduced. Excellent efficiency. Further, since all the terminals in one display element are connected to the lighting control circuit by one card edge connector, the connection becomes a one-touch operation and is extremely easy. Moreover, the card edge connector is formed by simply bending the bent portion, which is a part of the flexible printed wiring board on which all patterns are formed, through the reinforcing plate,
Its structure is simple and easy to manufacture. Also, the lighting control circuit side may be provided with the female connector in a one-to-one relationship with respect to one display element, so that the structure thereof can be simplified. Further, since the connector is formed as a card edge connector, a conventional female connector for a card edge connector that secures a sufficient insulation distance is used for the female connector on the lighting control circuit side into which the connector is inserted and coupled. The cost of parts can be kept low.

According to a second aspect of the present invention, in the display element wiring connection board according to the first aspect, a cut is made in a rectangular flexible printed wiring board, and a connection portion and a bent portion narrower than the connection portion are formed. And are formed in a substantially H shape, and a portion that does not form a substantially H shape is left as a residual portion on which the copper foil pattern is formed, and cut into a bent portion and a portion orthogonal to the bent portion in this residual portion. It was put in and folded back toward the display element side to form a heat dissipation section. Therefore, the heat dissipation portion promotes heat dissipation of the display element which generates heat by light emission. Further, it is easy to form such a heat radiating portion. Further, since the copper foil pattern is formed on the heat dissipation portion, the heat dissipation effect is excellent.

According to a third aspect of the present invention, in the display element wiring connection board according to the first aspect, a cut is made in a rectangular flexible printed wiring board, and a connection portion and a bent portion narrower than the connection portion are formed. Are formed in a substantially H-shape, and a portion that does not form a substantially H-shape is left as a residual portion. In the residual portion, a cut is made in the bent portion and a portion orthogonal to the bent portion, and the cut element is formed on the display element side. The second connection part is formed by folding back toward the second connection part, and a second display element side wiring pattern connected to a terminal provided at a position different from the two terminal rows of the display element is formed on the second connection part. Then, the second display element side wiring pattern was connected to the connector side wiring pattern with a predetermined correspondence. This makes it possible to deal with display elements having various terminal arrangement patterns. Also,
The second display element side wiring pattern is easily formed.

According to the fourth aspect of the invention, at least a part of the lighting control circuit connected to each wiring pattern is mounted on the display element wiring connection board. Therefore, when a display element wiring board connected and fixed to a display element is housed in an outer container to form a display element module and this is incorporated into a display unit, the lighting mounted on the display element wiring connection board is turned on. Lighting of each light emitting element of the display element is controlled by all or part of the control circuit. Therefore, the lighting control circuit that the display unit should have is omitted or simplified.

A display element module according to a fifth aspect of the present invention includes a display element having a plurality of light emitting elements arranged in a matrix and having a plurality of terminals arranged in a row on the back surface; at least one of lighting control circuits. Section and a connector are mounted, and a display element side wiring pattern connected to the terminal row of the display element via a lighting control circuit and a connector side wiring pattern connected to the connector are provided, and the display element side wiring pattern is the display element. A connection wiring board for a display element connected to the terminal row; and an outer container for exposing the light emitting portion of the display element to hold the display element and the connection wiring board for the display element. Therefore, when the display element module according to the present invention is incorporated into a display unit, each light emitting element of the display element is controlled to be turned on by all or part of the lighting control circuit mounted on the display element wiring connection board. It Therefore, the lighting control circuit that the display unit should have is omitted or simplified. Here, the display element connection wiring board is not limited to the flexible printed wiring board, and may be a normal printed wiring board.

The invention according to claim 6 is the invention according to claims 1 to 4.
A display element module including a lamp device formed by connecting and fixing the display element connection wiring substrate according to any one of the above 1 to 3 to the display element. A large diameter hole is formed in the lower free piece and a small diameter hole is formed in the upper free piece located on both sides of the rear portion of the display element wiring connection board. Further, the display surface of the display element is exposed to hold the lamp device, a connector exposure hole for exposing the card edge connector, and a ventilation port and an exhaust port located on both sides of the connector exposure hole are provided on the back surface. An outer container supporting the free piece of the wiring connection board for the display element by connecting the exhaust port with the air passage including the back surface of the display element, and inserting the supporting column that becomes narrower toward the upper side into the large diameter hole and the small diameter hole. Equipped with. Therefore, when air is blown to the back surface of the display element module, air flows from the air blower opening to the air outlet to the air outlet, and the display element that generates heat due to lighting in the process is cooled. In addition, the display element wiring connection board has the upper and lower free pieces supported by the supporting columns provided in the outer container by its own weight.

According to a seventh aspect of the present invention, in the display element module according to the sixth aspect, the second small diameter holes are formed in the lower free pieces located on both sides of the rear portion of the display element wiring connection board provided in the lamp device. A second large-diameter hole is formed in the upper free piece, and the outer container is a second support column that is fitted in the second large-diameter hole and the second small-diameter hole Fix the free piece of the wiring connection board. Therefore, in addition to supporting the display element wiring connection board in the display element module according to claim 6 by its own weight, the second support column is fitted into the second large-diameter hole and the second small-diameter hole for display element. The wiring connection board is fixedly positioned.

A plurality of display element modules according to any one of claims 5 to 8 are incorporated in a support and arranged in a matrix, and each light emitting element included in each display element module is controlled by a lighting control circuit. In this case, the function as a display unit is achieved (Claim 8).

A display device is constructed by arranging a plurality of display units according to the present invention in a matrix.

[0017]

FIG. 1 shows a first embodiment of the present invention.
A description will be given with reference to FIG. FIG. 1 is a perspective view of a display element, FIG. 2 is a plan development view of a display element wiring connection board (connection wiring board in the present embodiment), and FIG. 3 shows a lamp device and a female connector on a lighting control circuit side thereof. FIG. 4 is a perspective view showing a support provided in the display element unit and a display element module detachably attached to the support, and FIG. 5 is a perspective view showing the inside of the display unit.

Here, the concept of each part will be clarified. First,
2 is attached to the display element 1 shown in FIG. 1 to form a lamp device 18 shown in FIG. 3, and the lamp device 18 is housed in an outer container 101. Thus, the display element module 102 is completed (see FIG. 4). The display unit 103 controls the lighting by arranging a plurality of the display element modules 102 in a matrix (see FIG. 5). further,
A display device (not shown) is completed by collecting and arranging a plurality of the display units 103.

First, the display element 1 will be described. The display element 1 is formed by arranging light emitting elements (not shown) such as light emitting diodes arranged in a matrix. As shown in FIG. 4, picture elements 104 corresponding to the respective light emitting elements are arranged in a matrix on the front surface side of the display element 1. A total of 16 picture elements 104 are provided in a two-tiered array, eight in each row. As shown in FIG. 1, on the back surface side of the display element 1, an anode terminal 2 and a cathode terminal 3 for a light emitting element are provided.
And are provided. A plurality of anode terminals 2 are formed so as to project from the vicinity of the upper and lower two sides of the back surface of the display element 1, and are arranged in two rows in a straight line. The cathode terminal 3 is the display element 1
Two protrusions are formed on each of the two left and right sides in the center of the back surface.

FIG. 3 shows a lighting control board 4 which constitutes a part of the lighting control circuit. A female connector 5 on the lighting control circuit side is mounted on the lighting control board 4. The female connector 5 has a structure suitable for a card edge connector 6 which will be described later and has a connector function. Connection pins (not shown) are evenly thinned to secure an insulation distance. Here, the lighting control board 4 and the female connector 5 are specifically attached to the support 105 included in the display unit 103 (see FIG. 4). This will be described later.

Next, the connection wiring board 7 will be described.
The connection wiring board 7 is used as a connection structure for connecting the lighting control circuit and each display element 1. Connection wiring board 7
Is a flexible printed wiring board 8 and, as shown in the plan development view of FIG.
When the bent portion 9 is bent, the connecting portions 10 located on two sides adjacent to each other are formed into a substantially H-shape by making a predetermined cut C. Then, in the remaining portion of the flexible printed wiring board 8 which does not have a substantially H-shape, a cut C is formed in the bent portion 9 and a portion orthogonal to the bent portion 9 to form four heat dissipation portions 11. A notch C is formed in two of these heat dissipation portions 11 to form two second connection portions 12. The heat dissipating portion 11 and the second connecting portion 12 are folded back at the folding portion T between the bent portion 9 and the connecting portion 10.

Here, in the connection portion 10, the display element side wiring pattern 13 connected to the anode terminal 2 of the display element 1 is formed.
Are patterned. In addition, a second display element side wiring pattern 14 connected to the cathode terminal 3 of the display element 1 is patterned on the second connection portion 12. On both sides of the bent portion 9, connector side wiring patterns 15 are formed which are connected to the display element side wiring pattern 11 and the second display element side wiring pattern 14 in a predetermined correspondence relationship. Here, the display element side wiring pattern 11, the second display element side wiring pattern 14 and the connector side wiring pattern 15 are respectively connected via a drive IC (not shown), and a plurality of light emitting elements provided in the display element 1 are connected. The elements are configured to be matrix-driven. Further, the heat dissipation portion 11 is provided with a copper foil pattern 16 which is insulated from the above-described patterns 11, 14 and 15 with a sufficient insulation distance.

Next, the lamp device 18 will be described.
The connection wiring board 7 is bent at the position of the bent portion 9, and the display element side wiring patterns 13 formed on the two connection portions 10 are connected to the two rows of anode terminals 2 of the display element 1, respectively. In addition, the second connection portion 12 is folded back at the folding portion T, and the second display element side wiring patterns 14 formed on the two second connection portions 12 are connected to the cathode terminals 3 of the display element 1, respectively. The display element side wiring pattern 13 is connected to the anode terminal 2 and the second display element side wiring pattern 14 is connected to the cathode terminal 3 by soldering. And the four heat dissipation parts 1
Are also folded at the folding portions T, and come into contact with the display element 1 by the elastic force of the flexible printed wiring board 8. Further, the portions folded back by the folding portion 9 are adhered to each other with a reinforcing plate 17 having a predetermined thickness interposed therebetween, whereby the above-mentioned card edge connector 6 is formed. Thus, the lamp device 18 in which the connection wiring board 7 is attached to the display element 1 is completed.

Next, the display element module 102 will be described. As shown in FIGS. 3 and 4, the lamp device 18 configured by attaching the connection wiring board 7 to the display element 1 becomes the display element module 102 by being housed and held in the outer container 101. This display element module 10
2 has a fitting portion 106 at the rear portion, and the fitting portion 106 is limited in area by a collar-shaped abutting portion 107. Further, on the rear end surface of the display element module 102, the card edge connector 6 is exposed from the central portion thereof, and a blower port 108 and a discharge port 109 are provided on both sides thereof. The air outlet 108 and the air outlet 109 are connected via an air passage (not shown) formed inside the display element module 102. The air passage is in contact with the back surface of the display element 1. However, the blower port 108 and the discharge port 109 are relative names in terms of their functions, and are structurally the same.

Next, the display unit 103 will be described. As shown in FIG. 5, a box-shaped display unit housing 110 is provided, and the display unit housing 110 includes a support 105 on the front surface thereof. This support 105 is
As shown in FIG. 4, the display element module 1 is provided on the front side thereof.
A plurality of mounting parts 1 for fitting and fixing the fitting part 106 of 02
11 is provided. A female connector 5 to which the card edge connector 6 of the display element module 102 is connected is disposed in each mounting portion 111, and a ventilation hole 112 corresponding to a ventilation port 108 and a discharge port 109 of the display element module 102 and a discharge port. The hole 113 is formed. Here, the mounting portion 111
Are arranged in a matrix with a total of 32 in the vertical direction and 4 in the horizontal direction. Then, as shown in FIG. 5, the display unit housing 11
0, a blower fan 114 that blows air toward the support 105 is attached to the inner rear wall thereof.
A blower duct (not shown) that guides the blown air from the No. 4 to each display element module 102 mounted on the support 105 is provided. In FIG. 5, the ventilation path guided by the ventilation duct is indicated by a dotted arrow.

The display device (not shown) is completed by collecting a plurality of display units 103 and arranging them in a matrix, and providing a central control unit (not shown) for centrally controlling the lighting circuit of each display unit 103.

In such a structure, when the fitting portion 106 of the display element module 102 is inserted and fitted and fixed to the mounting portion 111 provided on the support 105 of the display unit 103, the card edge connector 6 of the display element module 102 is fixed. Is inserted and coupled to the female connector 5, and the display element 1 is electrically connected to the lighting control board 4 which constitutes a lighting control circuit. Thus, when an arbitrary light emitting element in the display element 1 is driven by the lighting control of the lighting control circuit, the corresponding pixel 104 emits light by the light emitting element emitting light. That is, the lighting control board 4 that constitutes the lighting control circuit
Outputs a power supply and a control signal from a connection pin (not shown) of the female connector 5. As a result, the power supply and the control signal are input to the connection wiring board 7 via the card-type connector 6 which is inserted and connected to the female connector 5. Then, the drive IC mounted on the connection wiring board 7 generates a matrix drive signal, and each light emitting element of the display element 1 is selectively driven to emit light. For this reason, in a display device in which a plurality of display units 103 in which a large number of display elements 1 are arranged in a matrix are further arranged in a matrix, a predetermined character or Images can be displayed.

At this time, the blown air from the blower fan 114 passes through the route shown by the dotted arrow in FIG. This path is the support 1
05, the air outlet 112 of the display element module 102 and the air outlet 108 of the display element module 102 pass through the air passage in contact with the back surface of the display element 1 to pass through the air outlet 109 of the display element module 102 and the air outlet 113 of the support 105. .
Therefore, the display element 1 that generates heat due to the light emission of the light emitting element is cooled by the air blow from the air blow fan 114.
In addition, the heat generated by the display element 1 is also radiated by the heat radiating portion 11 formed on the connection wiring board 7, and the copper foil portion 16 formed on the heat radiating portion 11 also enhances the heat radiating action. Therefore,
The cooling efficiency of the display element 1 is high.

On the other hand, in order to connect the display element 1 to the lighting control circuit, it is only necessary to insert and connect the card edge connector 6 into the female connector 5. That is, all the light emitting elements in one display element 1 are connected to the lighting control circuit by one card edge connector 6. Therefore, the connection becomes a one-touch operation and the workability is good.

Further, since the connection structure between the display element 1 and the lighting control circuit is completed only by the connection wiring board 7 made of the flexible printed wiring board 8 and the reinforcing plate 17,
Compact structure and excellent space efficiency.

Moreover, since the card edge connector 6 is formed only by bending the bent portion 9 which is a part of the flexible printed wiring board 7 on which all patterns are formed in advance through the reinforcing plate 17, It has a simple structure and is easy to manufacture. The lighting control circuit side also has one display element 1
Since the female connector 5 may be provided in a one-to-one relationship with respect to 1, the structure thereof is simplified.

Further, since the connector on the side of the display element with a connecting wiring board 1 is formed as the card edge connector 6, a sufficient insulation distance is secured for the female connector 5 on the side of the lighting control circuit into which this is inserted and coupled. The conventional female connector for the card edge connector can be used, and the component cost can be kept low.

A second embodiment of the present invention will be described with reference to FIGS. 6 to 8. FIG. 6 is a plan development view of a wiring connection board for display elements (connection wiring board in the present embodiment), and FIG.
Is a perspective view of the lamp device, and FIG. 8 is an exploded perspective view of the display element module.

In this embodiment, the display element module 10 is used.
The second structure is the same as that of the first embodiment except for the structure. Therefore, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description is omitted.

As shown in FIG. 6, the connection wiring board 21 of the present embodiment does not have the heat radiating portion 11 provided in the connection wiring board 7 of the first embodiment. The four semiconductor chips 22 are mounted on the connection wiring board 21.
These semiconductor chips 22 have a function of a driving IC for matrix-driving the light emitting elements and a part of a lighting control circuit for lighting the light emitting elements. Further, since the connection wiring board 21 has an H shape, its end is in a free state in which it is not supported. When this is called a free piece F, a small diameter hole 23 and a large diameter hole 24 are formed in each free piece F. The small diameter hole 23 is a small diameter hole formed in the upper free piece Fa located above when the lamp device 18 is configured, and the large diameter hole 24 is formed in the lower free piece Fb located below. It has a larger diameter than the small diameter hole 23.

FIG. 7 shows a lamp device 18 constructed by attaching the connection wiring board 21 to the display element 1.

As shown in FIG. 8, an outer container 101 for housing and holding the lamp device 18 is formed by joining and fixing a lower case 101a and an upper case 101b. A holding structure for the lamp device 18 is provided in each of the cases 101a and 101b, and the air outlet 108, the air outlet 109, and the air passage 2 are provided.
5 and partition plate 2 for forming connector exposure hole 26
7 are formed. The lower case 101a is provided with a support column 28 that is inserted into the small diameter hole 23 and the large diameter hole 24 formed in the connection wiring board 21. This support pillar 28
Has a conical shape that tapers off upward.

In such a structure, the lower case 101
The lamp device 18 is placed at a predetermined position of the lower case 101a while inserting the large diameter hole 24 and the small diameter hole 23 of the connection wiring board 21 into the support column 28 of a.
When the upper case 101b is bonded and fixed to 01a, the display element module 102 is completed.

At this time, since the supporting column 28 is fitted in the large diameter hole 24 and the small diameter hole 23 of the connection wiring board 21,
It is held by the support column 28 under its own weight. For this reason, the free piece F which is originally not supported but is in a free state is supported, which ensures communication from the air blow port 108 to the air blow passage 25 and from the air blow passage 25 to the discharge port 109.

The semiconductor chip 22 mounted on the connection wiring board 21 has a part of the function of a lighting control circuit for lighting the light emitting element. Therefore, a part of the function of the lighting control circuit that should be provided on the display unit 103 side is fulfilled by the semiconductor chip 22, and the lighting control circuit on the display unit 103 side can be simplified.

A third embodiment of the present invention will be described with reference to FIG. FIG. 9 is an exploded perspective view of the display element module.

This embodiment also relates to the structure of the display element module 102 as in the second embodiment, and the basic structure is the same as that of the second embodiment. Therefore, the same parts as those in the second embodiment are designated by the same reference numerals and the description thereof will be omitted.

In the present embodiment, the second large-diameter hole 31 is formed in the upper free piece Fa of the connection wiring board 21, and the lower free piece F is formed.
Second small-diameter holes 32 are further formed in b. Then, on the upper case 101b, a second support column 33 inserted into the second large diameter hole 31 and the second small diameter hole 32 is provided upright. The second support pillar 33 is
It has a conical shape that becomes thinner toward the bottom.

In such a structure, the lower case 101
When the upper case 101b is joined and fixed to a, the upper case 1
The second support column 33 of 01b is sequentially inserted into the second large diameter hole 31 and the second small diameter hole 32 of the connection wiring board 21. As a result, the free piece F of the connection wiring board 21 is fixedly positioned by the second support column 33, and the communication from the air blowing port 108 to the air blowing path 25 and from the air blowing path 25 to the air outlet 109 is ensured.

[0045]

According to the inventions of claims 1 to 4, 6 and 7, the connection structure between the display element and the lighting control circuit is completed only by the flexible printed wiring board and the reinforcing plate, so that it is excellent in space efficiency. It is possible to obtain a compact structure and device. Further, since all the terminals in one display element are connected to the lighting control circuit by one touch by one card edge connector, the work can be facilitated. Moreover, since the card edge connector is formed by simply bending the bent portion, which is a part of the flexible printed wiring board on which all patterns are formed in advance, through the reinforcing plate, simplification of its structure and manufacturing It can be facilitated. On the lighting control circuit side as well, the female connector may be provided in a one-to-one relationship with respect to one display element, so that the structure thereof can be simplified. Further, since the connector is formed as a card edge connector, a conventional female connector for a card edge connector that secures a sufficient insulation distance is used for the female connector on the lighting control circuit side into which the connector is inserted and coupled. Therefore, the cost of parts can be kept low.

Particularly, in the inventions according to claims 2 and 3,
The wiring connection board for a display element according to claim 1, wherein a cut is made in a rectangular flexible printed wiring board,
Since the connection portion and the bent portion narrower than the connection portion are formed in a substantially H-shape, it becomes easy to form a portion not forming the substantially H-shape as a heat dissipation portion having a copper foil pattern. The heat dissipation of the display element can be improved (Claim 2), and it becomes easy to form the second display element side wiring pattern in the portion which does not form the substantially H shape, and various terminal arrangement patterns can be formed. It can be made compatible with the display element that it has (Claim 3).

According to the fourth aspect of the invention, since at least a part of the lighting control circuit is mounted on the display element connection wiring board, at least a part of the functions of the lighting control circuit that the display unit should have is provided with the display element connection wiring. This can be performed on the substrate side, and thus the lighting control circuit on the display unit side can be omitted or simplified.

According to the sixth and seventh aspects of the present invention, the back surface of the lamp device is located in the air passage in the display element module extending from the air outlet to the air outlet, so that the lamp device which generates heat by light emission is cooled well. be able to.

According to the sixth aspect of the present invention, the free piece of the connection wiring board for the display element, which is not supported even when formed as a lamp device, is supported by its own weight, so that the connection wiring board for the display element is desired. It is possible to reliably support the position, and it is possible to reliably prevent the inconvenience that the unsupported free piece blocks the air passage. In this case, in the invention according to claim 7, since the free piece is position-fixed by both supporting and fixing by its own weight,
It is possible to more reliably support the display element connection wiring board at a desired position.

[Brief description of drawings]

FIG. 1 is a perspective view of a display element showing a first embodiment of the present invention.

FIG. 2 is a plan development view of a wiring connection board for a display element.

FIG. 3 is a perspective view of a lamp device and a female connector on a lighting control circuit side thereof.

FIG. 4 is a perspective view showing a support provided in the display element unit and a display element module detachably attached to the support.

FIG. 5 is a perspective view showing the inside of the display unit.

FIG. 6 is a plan development view of a wiring connection board for a display element showing a second embodiment of the present invention.

FIG. 7 is a perspective view of a lamp device.

FIG. 8 is an exploded perspective view of a display element module.

FIG. 9 is an exploded perspective view of a display element module showing a third embodiment of the present invention.

FIG. 10 is a perspective view showing a conventional example of a connection structure between a display element and a lighting control circuit thereof.

[Explanation of symbols]

 1: Display element 2, 3: Terminal 6: Card edge connector 7, 21: Display element wiring connection board 8: Flexible printed wiring board 9: Bend part 10: Connection part 11: Heat dissipation part 12: Second connection part 13 : Display element side wiring pattern 14: Second display element side wiring pattern 15: Connector side wiring pattern 16: Copper foil pattern 17: Reinforcing plate 18: Lamp device 23: Small diameter hole 24: Large diameter hole 25: Air duct 26: Connector Exposure hole 28: Support pillar 31: Second large diameter hole 32: Second small diameter hole 33: Second support pillar 101: Outer container 103: Display unit 102: Display element module 105: Support 108: Air blower 109 : Outlet C: Notch Fa: Upper free piece Fb: Lower free piece

Claims (9)

[Claims] 1. A bent portion that is located at a substantially central portion and that is bent; a connecting portion that is located on two sides that are close to each other when the bent portion is bent; a connecting portion that is formed in the connecting portion and is arranged in a matrix. And a display element side wiring pattern connected to a plurality of terminals arranged in a row in the vicinity of two opposite sides of a back surface of a display element having a plurality of light emitting elements arranged therein; Connector side wiring patterns which are formed on both sides, are connected to the display element side wiring pattern in a predetermined correspondence relationship, and the bent portion is bent through a reinforcing plate to form a card edge connector. A wiring connection board for a display element, which is made of a flexible printed wiring board. 2. A rectangular flexible printed wiring board is cut into, a connecting portion and a bent portion narrower than the connecting portion are formed into a substantially H shape, and a portion which does not form a substantially H shape is formed. The copper foil pattern is left as a remaining portion, and a cut portion is formed in the bent portion and a portion orthogonal to the bent portion in the remaining portion, and the cut portion is folded back toward the display element side to form a heat radiating portion. The wiring connection substrate for a display element according to claim 1, which is characterized in that. 3. A cutout is made in a rectangular flexible printed wiring board, a connecting portion and a bent portion narrower than the connecting portion are formed into a substantially H shape, and a portion which does not have a substantially H shape is formed. The remaining portion is left as a residual portion, and a cut portion is formed in the bent portion and a portion orthogonal to the bent portion in the remaining portion to be folded back toward the display element side to form a second connecting portion, and the second connecting portion includes the above A second display element side wiring pattern connected to terminals provided at positions different from the two rows of display element terminals is formed, and this second display element side wiring pattern is associated with the connector side wiring pattern in a predetermined manner. The wiring connection board for a display element according to claim 1, wherein the wiring connection boards are connected in a relationship. 4. The wiring connection board for a display element according to claim 1, wherein at least a part of a lighting control circuit connected to each wiring pattern is mounted. 5. A display element comprising a plurality of light emitting elements arranged in a matrix and having a plurality of terminals arranged in a row on a back surface thereof; at least a part of a lighting control circuit and a connector are mounted, and the lighting control is provided. A display element side wiring pattern connected to the terminal row of the display element via a circuit and a connector side wiring pattern connected to the connector, the display element side wiring pattern being connected to the terminal row of the display element A display element module comprising: a display element connection wiring board; and an outer container for exposing the light emitting portion of the display element to hold the display element and the display element connection wiring board. 6. The small diameter hole is formed in the lower free piece and the small diameter hole is formed in the upper free piece located on both sides of the rear part of the display element wiring connection substrate. A lamp device formed by connecting and fixing a wiring connection substrate for a display device to the display device; a connector exposure hole for exposing the display device to hold the lamp device and exposing a card edge connector, and both sides of the connector exposure hole Is provided on the back surface, and the air outlet and the air outlet are communicated with each other through an air passage including the back surface of the display element, and as the large diameter hole and the small diameter hole go upward. An outer container for supporting the free piece of the display element wiring connection substrate by inserting a thin support pillar; and a display element module. 7. A second small-diameter hole is formed in the lower free piece and a second large-diameter hole is formed in the upper free piece, which are located on both sides of the rear portion of the wiring connection board for the display element included in the lamp device. The outer container fixes the free piece of the display element wiring connection board by a second support column which is fitted in the second large diameter hole and the second small diameter hole and becomes thinner as it goes downward. 7. The display element module according to claim 6, wherein: 8. A support for arranging a plurality of the display element modules according to claim 5 in a matrix form; and a lighting control circuit for controlling lighting of each light emitting element of the display element module. A display unit characterized by the above. 9. A display device comprising a plurality of display units according to claim 8 arranged in a matrix.