JP3521779B2 - Display element substrate mounting structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board mounting structure for mounting a plurality of boards, each having a display element mounted thereon, at predetermined positions so that the display elements are arranged in parallel. The structure of the present invention is useful in a display device having a plurality of display element mounting substrates.

[0002]

2. Description of the Related Art A display element such as a fluorescent display tube may have a circuit board for driving it, and the display element itself may be mounted on the circuit board.
In a display device having such a display element substrate,
By fixing the substrate, the display element is arranged at a predetermined position in the device.

For example, as shown in FIG. 7, a display element 10
When the substrate 101 to which 0 is attached is fixed in the device, for example, the boss 10 is provided on the side where the display element 100 is arranged.
2 are provided, and the holes 103 are formed in the substrate 101 correspondingly.
Is processed, and the substrate 101 is bossed by the screw 104.
Fixed to 2.

[0004]

In this case, if the number of substrates to be fixed is one, the mounting portion can be processed at, for example, four places (four corners of the substrate and four bosses in the illustrated example). In a display device or the like having a large number of substrates with display elements, it is necessary to process such a mounting structure for each substrate, which is a considerable number as a whole. Further, the work of screwing the screw holes of each board to the bosses is complicated and time-consuming. The processing of such bosses and screw holes spreads over many places and the mounting work takes a long time, which increases the manufacturing cost of the display device.

Furthermore, the weight of the substrate on which the display element is mounted is small, but if the weight becomes a certain amount, there is a problem that it cannot be supported by screwing. Even in that case, if a screw-fastened structure is adopted, a special structure that can bear the weight must be newly designed.

The present invention provides a mounting structure that is simple and reliable and can be applied regardless of the type of substrate, in order to mount a plurality of substrates on which display elements are mounted so that the display elements are arranged in parallel. It is an object.

[0007]

According to a first aspect of the present invention, there is provided a display element substrate mounting structure comprising a display element (1).
In a display element substrate mounting structure for mounting a plurality of substrates (11) mounted with (0) at predetermined positions so that the display elements are arranged in parallel, two frames (7) each having a groove in the longitudinal direction are provided. ) Are arranged so as to be parallel to each other at a predetermined interval, and elastic members (15) are provided on both side edges of the substrate in the grooves (14) of the two frames so that the display element faces a predetermined direction. ) Is inserted and fixed through.

According to a second aspect of the present invention, there is provided a mounting structure for a display element substrate according to the first aspect, wherein the groove (1
It is characterized in that both side edges of the substrate (11) to be inserted into the substrate (4) are protected by an insulating material (12) detachable from the substrate.

According to a third aspect of the present invention, there is provided a display element substrate mounting structure according to the second aspect, wherein the insulating material (12) is opened and closed at a cut surface perpendicular to a direction of the groove (14). It has a substantially U-shape with a possible pair of pieces (13), and in a state where both side edges of the substrate are inserted into the groove and fixed, the pair of pieces of the insulating material is A fixing force is applied to the substrate from the tip portion.

According to a fourth aspect of the present invention, there is provided a display element substrate mounting structure according to the first, second or third structure, wherein the substrate (11) has an electrical connection member (connector 1).
A second substrate (20) is connected via a second frame (7), and the second substrate (3) is disposed behind the third frame (7) close to the two frames (7). 21) is characterized in that one side edge portion thereof is inserted into and fixed to the groove (22) formed through the insulating material (12).

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION One example of an embodiment of the present invention is shown in FIG.
~ It demonstrates with reference to FIG. As shown in FIG. 1, the display device 1 of the present example includes a main body 3 having a display surface in which a plurality of horizontally long display areas 2 are vertically arranged, and a leg portion 4 supporting the main body 3. It is installed on the floor. This display device 1
Is suitable for, for example, displaying advertisements / guidances / price, etc. of products side by side in a store, and displaying interest rates, exchange rates, etc. of various financial products side by side in financial institutions.

As shown in FIG. 1, the left and right sides and the upper side of the main body 3 of the display device 1 are covered with decorative covers 5 and 6. FIG. 2 shows the skeleton of the main body 3 from which the decorative covers 5 and 6 have been removed. The pair of frames 7, 7 are angle members made of aluminum, and are vertically arranged in parallel with each other at a predetermined interval, and their upper and lower ends are fixed plates 8, 7, respectively.
9 are connected. The pair of frames 7, 7 are bilaterally symmetrical. Grooves 14 are formed in each frame along the longitudinal direction (vertical direction). Groove 14 in each frame 7
Is on the side close to the front surface of the main body 3 (the front side in FIG. 2). The shape of the groove 14 is substantially trapezoidal in a cross section orthogonal to the extending direction of the groove 14, and the opening width thereof is smaller than the width of the internal void.

As shown in FIGS. 3 and 4, a substrate 11 on which a display element 10 is mounted is provided between a pair of frames 7, 7.
(Display element substrate 11) is attached. As shown in FIG. 4, both side edges of the substrate 11 are sandwiched between resin insulating materials 12. The insulating material 12 has a substantially U-shaped (or C-shaped) cross-sectional shape including a pair of pieces 13 and 13 that can be opened and closed on a cut surface perpendicular to the direction of the groove 14.
The length corresponds to the length of the side edge portion of the substrate 11. Then, inside the groove 14, the insulating material 12 sandwiching the side edge portion of the substrate 11 is fixed by the elastic member 15 which is pressed into the groove 14 and deformed.
At 13, the pressing force is applied to the side edge portion of the substrate 11.

As the insulating material 12, a resin binder used for file binding as office supplies can be used. The elastic member 15 is a rubber material having a substantially circular cross section, and the one used for fixing the mesh to the frame in the aluminum sash screen door can be used.

As shown in FIG. 3, a pair of frames 7, 7
The display element 1 is provided on the front side of the substrate 11 mounted between
0 is implemented. A filter 16 is attached to the front side of the frame 7 in front of the display element 10.

As shown in FIGS. 3 and 5, the substrate 11
The second substrate 20 is connected to the rear surface side via a connector 17, which is an electrical connection member. Between the pair of frames 7 and 7, in parallel with the pair of frames 7 and 7, the second
A substantially U-shaped third frame 2 for holding the substrate 20.
1 is provided. The upper and lower parts of the third frame 21 are connected to the upper and lower fixing plates 8 and 9, respectively. Then, each of the second substrates 20 of the plurality of substrates 11 held between the pair of frames 7, 7 is sandwiched by the common insulating material 12 at the side edge portion on the side far from the connector 17, and the third frame 2
It is sandwiched and fixed in the first groove 22.

As shown in FIG. 3, a pair of frames 7, 7
A back plate 23 is attached to the back side of the space to hide the inside.

According to the above structure, the pair of frames 7,
Since 7 is symmetrical, it becomes common as a part, and the manufacturing cost becomes low. Further, if the pair of frames 7 and 7 are made of aluminum, there is a risk of electrical conduction when the substrate 11 is directly sandwiched, but in this example, since it is sandwiched by the U-shaped insulating material 12, the insulating property is high. . Also, the substrate 11
Side edges of the elastic member 15 in the groove 14 of the frame 7.
Since the line is fixed with, there is no rattling and it is securely fixed.

Further, since the substrates 11 are inserted and fixed in the grooves 14 of the pair of frames 7, 7, the interval between the substrates 11 arranged vertically can be set arbitrarily. Since the substrate 11 is fixed in the groove 14 of the frame 7 by the elastic member 15,
The space between the upper and lower substrates 11, 11 once set does not easily change due to its own weight or the like. In addition, in order to set the space between the vertically arranged substrates 11 and 11 to a predetermined size, a spacer plate having a predetermined size may be inserted into the groove 14 between the vertically arranged substrates 11 and 11. Further, compared with the case of mounting with a large number of screws, this example of inserting and fixing in the groove 14 is
The substrate 11 can be easily replaced.

In the structure of this example, the substrate 11 sandwiched by the insulating material 12 may be inserted into the groove 14 and then the elastic member 15 may be forcibly pushed into the groove 14 to be fixed. The elastic member 15 may be provided in the groove 14 in advance before the insertion.

FIG. 6 is a sectional view showing another example of the shape of the groove 30 of the pair of frames 7, 7. The groove 30 has a shape in which a substantially semicircular recess 32 is provided on the inner surface of a rectangular portion 31. In the rectangular portion 31, the substrate 11 sandwiched between the insulating materials 12
And the elastic member 15 is provided in the semicircular recess 32.

[0022]

According to the present invention, since screws are not used for mounting the display element substrate, the mounting position can be freely selected, fine adjustment is possible, and the interval can be freely set when a plurality of mountings are made. , The degree of freedom of mounting increases.
Further, since no screw is used, a screw hole and tapping are not required, and the structure can be simplified and the manufacturing cost can be reduced. Moreover, since the wire is fixed by the elastic member in the groove instead of the point fixing such as the screw fixing, the fixing is reliable.

[Brief description of drawings]

FIG. 1 is a perspective view of a display device of this example.

FIG. 2 is a perspective view showing a base body of the display device of the present example.

FIG. 3 is a cross-sectional view of the display device of this example.

FIG. 4 is an enlarged cross-sectional view of a groove of a frame in the display device of this example.

FIG. 5 is a perspective view showing a base body of a display device of this example, a substrate attached to the base body, and the like.

FIG. 6 is a cross-sectional view showing another example of the shape of the groove in the display device of this example.

FIG. 7 is a perspective view showing a conventional mounting structure of a display element substrate.

[Explanation of symbols]

1 Display device 7 frames 10 Display element 11 board 12 insulation 13 one side 14,30 Grooves in a pair of frames 15 Elastic member 20 Second substrate 21 Third Frame 22 Third frame groove

Continuation of the front page (56) References Shown 62-20563 (JP, U) Shown 64-7467 (JP, U) Shown flat 1-85776 (JP, U) Shown flat 1-120388 (JP , U) (58) Fields investigated (Int.Cl. ⁷ , DB name) H05K 7/12

Claims (4)

(57) [Claims] 1. A display element substrate mounting structure for mounting a plurality of substrates, each having a display element mounted thereon, at a predetermined position such that the display elements are arranged in parallel. The frames are arranged in parallel with each other at a predetermined interval, and both side edges of the substrate are inserted into the grooves of the two frames via elastic members so that the display elements face a predetermined direction. A structure for mounting a display element substrate, which is characterized in that the display element substrate is fixed. 2. The mounting structure for a display element substrate according to claim 1, wherein both side edges of the substrate inserted into the groove are protected by an insulating material which is detachable from the substrate. 3. The insulating material has a substantially U-shape having a pair of openable and closable pieces on a cut surface perpendicular to the groove direction, and both side edges of the substrate are aligned with the groove. The display element substrate mounting structure according to claim 2, wherein a fixing force is applied to the substrate from the front portions of the pair of pieces of the insulating material in the inserted and fixed state. 4. A second substrate is connected to the substrate via an electrical connection member, and the second substrate is the second substrate.
The one side edge portion is inserted and fixed to a groove formed in a third frame arranged in the rear of the substrate in the vicinity of the book frame via an insulating material. The mounting structure for a display element substrate as described in 1 or 2 or 3.