JP2003015554A - Parts for array type display device, method of installing array type display device, and array type display device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To reduce the cost of an array type display device in which a plurality of display elements having a fixed number of pixels are arrayed and to facilitate the work at the installation site. SOLUTION: A pixel and a driving circuit 4 for driving the pixel
And a signal processing / power supply unit 2 having a signal processing circuit for supplying a signal to the drive circuit 4 and a power supply 5
And a frame member 3 having a shape of a frame of a size to which the panel unit 1 can be attached and having means for attaching to a structure for supporting the array type display device. The power supply unit 2 is formed as separate first and second parts, and at least one of the first and second parts is formed as a separate part from the frame member 3. And at least one of the other part and the frame-shaped member 3
Has means 1d, 1e, 2c, 3e for attaching to the surface. At the installation site, after attaching the frame-shaped member 3 to this structure, another part is attached to the frame-shaped member 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device configured by arranging a plurality of display elements having a fixed number of pixels.

[0002]

2. Description of the Related Art A facility for accommodating a large number of spectators, such as a sports stadium, is often equipped with a large-screen direct-view image display device for displaying images to all spectators in the facility. There is.

It is difficult to realize the screen size required in such a facility with a single device in terms of mechanical strength and the like. Therefore, it has become common to realize a large screen by arranging a plurality of display elements having a certain number of pixels (relatively small screen size) as a structural unit in the vertical and horizontal directions at the installation site. There is. Such a display device will be referred to as an array display device.

Conventionally, in the field of such an array type display device, a pixel and a drive circuit (driver IC) for driving the pixel.
And a signal processing circuit that processes a video signal from the outside and supplies a signal to the driver IC, and a power supply that supplies power to the signal processing circuit are all integrated into a unit, and this unit is installed on site. Multiple arrays were arranged in the vertical and horizontal directions.

FIG. 9 shows a structural example of this unit in an array type display device using LEDs (light emitting diodes) as pixels. In this unit 21, on the back surface of the LED substrate 22 in which LEDs with a certain number of pixels are arranged in a matrix,
A board on which a driver IC is mounted (referred to as a B board), a board on which a signal processing circuit is mounted (referred to as an MQ board), and a power supply are attached. (In the figure, for convenience, the B board, the MQ board, and the power supply unit are collectively shown as a B board, an MQ board, and a power supply 23.)

The B board, the MQ board, and the power supply 23 are a housing 24.
Is covered with. When the driver IC, the signal processing circuit, and the power source are all gathered in one place, the temperature rises considerably due to the respective heat generation, so there is an opening in the surface of the housing 24 that is the rear side of the unit 21. An exhaust fan 25 for heat dissipation is attached to this opening.

Also, in the four corners on the rear side of the unit 21,
A screw hole 21a for attaching the unit 21 to the structure described later is provided.

FIG. 10 shows a method of installing an array type display device using the unit 21 of FIG. At the installation site, in order to mechanically support the array type display device, a plurality of elongated linear structures 31 made of steel are arranged at intervals of the lateral size of the unit 21 (for example, in a dome type stadium. It is fixedly placed on the inner wall of the dome). In each structure 31, two rows of screw holes 31a are formed in the longitudinal direction so as to match the intervals of the screw holes 21a of each unit 21 when a plurality of units 21 are arranged in the vertical direction.

When the array type display device is installed, the individual units 21 are positioned so that the screw holes 21a are aligned with the positions of the four screw holes 31a of the two adjacent structure bodies 31, The structure 31 is screwed. By mounting the plurality of units 21 on the structure 31 in this manner, the installation of the array-type display device is completed.

[0010]

However, these conventional techniques have the following disadvantages (a) to (c).

(A) As shown in FIG. 9, a large housing or exhaust fan that covers the driver IC, the signal processing circuit, and the power source is provided for every fixed number of pixels, resulting in high cost.

The unit (b) has a large size because the pixel, the driver IC, the signal processing circuit, and the power supply are integrated, and also includes a large casing and an exhaust fan as illustrated in FIG. It becomes heavier and heavier. Since such a large and heavy unit must be attached to the structure at the installation site, the installation work is difficult.

(C) Since the positions of the units are indirectly aligned with each other by positioning the units with respect to the structure, when the sizes of the individual units are varied, the units are adjacent to each other. Arrangement accuracy deteriorates due to gaps.

In view of the above points, the present invention has been made to solve the above-mentioned conventional inconveniences associated with array type display devices.

[0015]

In order to solve this problem, the present applicant has found that a panel section having a pixel and a drive circuit for driving the pixel, a signal processing circuit for supplying a signal to the drive circuit, and Of the signal processing / power supply unit having a power source and the frame-shaped member having a shape of a frame having a size to which the panel unit can be attached and having a means for attaching to a structure for supporting the array type display device. The panel part and the signal processing / power supply part are respectively separate first and second parts, and at least one of the first part and the second part has the frame shape. An array display device, which is a part different from the member, and at least one of the other part and the frame-shaped member has a means for attaching the other part to the frame-shaped member. For parts group To draft.

In this part group, the panel section having the pixels and the driving circuit (driver IC) and the signal processing / power source section having the signal processing circuit and the power source are respectively separated into the first and second parts.
The frame-shaped member, which is a second part, has the shape of a frame having a size to which the panel portion can be attached, and can be attached to a structure for supporting the array type display device is the first part. And at least one of the second part and the second part is a different part. Then, a panel part or a signal processing / power source part which is a part different from the frame-shaped member can be attached to the frame-shaped member.

When an array type display device is installed using this group of parts, a frame-shaped member is first attached to the structure at the installation site, and then a panel which is a part different from this frame-shaped member is installed. Section or signal processing / power supply section is attached to this frame-shaped member. By carrying out such a work by preparing a plurality of sets of the parts group, the installation of the array type display device is completed.

As described above, a part including a pixel and a driver and a part including a signal processing circuit and a power supply are manufactured without manufacturing a unit in which a pixel, a driver IC, a signal processing circuit, and a power supply are integrated as in the related art. By using separate parts, a large housing for covering the driver IC, the signal processing circuit, and the power supply is not required. Further, instead of collecting the driver IC, the signal processing circuit, and the power source in one place as in the conventional case, by including the driver IC, the signal processing circuit, and the power source in separate parts, the number of heat generation points is reduced.
Dispersed in one part, the temperature rise of each part is reduced, so no exhaust fan is required. As a result, the cost inconvenience described in (a) above is eliminated.

Since the individual parts are smaller and lighter than the conventional unit, and such small and lightweight individual parts can be sequentially mounted at the installation site, the installation work as described in (b) above is performed. The inconvenience is also eliminated.

In this array type display device parts group, as an example, both the panel section and the signal processing / power supply section are parts different from the frame-shaped member (that is, the panel section, the signal processing / power supply section). Therefore, it is preferable that all the frame-shaped members are separate parts.

As a result, the individual parts become smaller and lighter, and the installation work becomes easier.

Further, in this array type display device parts group, for example, it is preferable that the frame-shaped member is further provided with means for positioning the plurality of frame-shaped members with respect to each other.

Since the frame-shaped members can be directly aligned with each other, it is possible to prevent gaps between the frame-shaped members even when the sizes of the individual frame-shaped members vary. . Therefore, the inconvenience in terms of arrangement accuracy as described in (c) above is also eliminated.

Further, in this array-type display device part group, as an example, a means for attaching a panel part or a signal processing / power supply part, which is a part different from the frame-shaped member, to the frame-shaped member is used. It is preferable to use a device in which the processing / power supply unit is hung and fixed to the frame-shaped member.

As a result, the panel portion or the signal processing / power supply portion, which is another part, can be easily attached to the frame-shaped member, so that the installation work becomes easier. Further, even during maintenance after installation, the panel portion or the signal processing / power source portion can be easily removed from the frame-shaped member, which facilitates maintenance work.

Next, the present applicant has formed a frame having a size to which a panel portion having a pixel and a driving circuit for driving the pixel can be attached, and the panel portion and the driving circuit are provided. A frame-shaped member, which is a separate part from at least one of a signal processing circuit for signal supply and a signal processing / power supply unit having a power supply, is attached to a structure for supporting an array-type display device. 1 step,
A second step of attaching to the frame-shaped member a part that is a part of the panel-shaped member and the signal processing / power supply unit that is separate from the frame-shaped member, and a plurality of sets of the frame-shaped member and the other members. We propose a method of installing an array type display device that is designed for parts.

In this installation method, the frame-shaped member is first attached to the structure at the installation site, and then the panel portion or the signal processing / power supply unit, which is a separate part from the frame-shaped member, is attached to the frame-shaped member. Attach to. By performing such a work for a plurality of sets of frame-shaped members and other parts, the installation of the array type display device is completed.

Thus, since the individual parts which are smaller and lighter than the conventional unit are sequentially mounted, the inconvenience in the installation work as described in (b) above is eliminated.

Also in the method of installing the array type display device, as an example, in the first step, a frame-shaped member, which is a separate part from both the panel section and the signal processing / power supply section, is formed in the structure. It is preferable to attach the panel section and the signal processing / power source section to the frame-shaped member in the second step of mounting (that is, sequentially attach the panel section, the signal processing / power source section, and the frame-shaped member as separate parts). Is.

As a result, the individual parts can be made smaller and lighter, which makes the installation work easier.

Next, the present applicant has formed a frame having a size to which a panel portion having a pixel and a drive circuit for driving the pixel can be attached, and the panel portion and the drive circuit are connected to the panel portion. A plurality of frame-shaped members, which are separate parts from at least one of the signal processing circuit for signal supply and the signal processing / power supply unit having a power supply, are attached to a structure for supporting the array-type display device. Then, an array type display device is proposed in which one of the panel portion and the signal processing / power supply portion which is a part different from the frame-shaped member is attached to each frame-shaped member.

In this array type display device, the panel portion including the pixels and the driver ICs and the signal processing / power source portion including the signal processing circuit and the power source are separate parts, so that a large housing is not necessary. Since no exhaust fan is required, the cost inconvenience described in (a) above is eliminated.

Also in this array type display device, for example, it is preferable that the frame-shaped member is further provided with means for positioning the plurality of frame-shaped members with respect to each other.

As a result, the frame-shaped members are directly aligned with each other, so that the inconvenience in terms of arrangement accuracy as described in (c) above is eliminated.

Also in this array type display device, as an example, a means for attaching the panel portion or the signal processing / power supply portion, which is a part different from the frame-shaped member, to the frame-shaped member is used. It is preferable that the device is a device that hangs the power supply unit on the frame-shaped member.

As a result, at the time of maintenance after installation, the panel portion or the signal processing / power source portion can be easily removed from the frame-shaped member, which facilitates maintenance work.

[0037]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an example in which the present invention is applied to an array type display device using LEDs as pixels will be specifically described with reference to the drawings.

FIG. 1 and FIG. 2 show a structural example of a group of parts for an array type display device according to the present invention. This group of parts is made up of three types of parts: a panel section 1, an MQ board / power supply section 2, and a panel bracket 3. (The MQ board / power supply unit 2 and the panel bracket 3 correspond to the signal processing / power supply unit and the frame member in the claims, respectively.)

In FIG. 1, the external appearance of the panel portion 1 is shown from the side. The panel unit 1 includes a driver I on the back surface of an LED substrate 1a in which LEDs with a certain number of pixels are arranged in a matrix.
A board (B board) 4 on which C is mounted is attached and the B board 4 is housed in a thin casing 1b. Panel part 1
The screen size is 240 × 480 mm.

In FIG. 1, the appearance of the MQ substrate / power supply unit 2 is shown from the side. The MQ board / power supply unit 2 includes a board (MQ board) on which a signal processing circuit is mounted and a power supply for supplying power to the signal processing circuit, which are housed in a thin plate 2a and a thin housing 2b (in the figure, , The MQ board and the power source are collectively represented as an MQ board / power source 5.) This signal processing circuit processes a video signal or the like from the outside and causes the driver IC on the B board 4 of the panel unit 1 to process. It is for supplying a signal.

FIG. 1 shows the cross section of the panel bracket 3 from the side, and FIG. 2 shows the appearance of the panel bracket 3 from the front. The panel bracket 3 has a frame shape of 480 mm in length and 960 mm in width, which is a size capable of mounting two panel parts 1 in the vertical and horizontal directions.

As shown in FIG. 2, the four corners of the panel bracket 3 have a diameter for attaching the panel bracket 3 to a structure for supporting the array type display device (T bar 11 in FIG. 3 described later). Dumb hole 3a slightly larger than 15mm
Are open. The distance between the two vertical holes 3a of the panel bracket 3 is 400 mm.

Further, the panel bracket 3 is provided with projecting positioning pins 3b one at each of the left and right positions on the upper surface in order to position the plurality of panel brackets 3 relative to each other, and the pins 3b are inserted. Hole 3c for
(FIG. 1) is provided one each on the left and right sides of the lower surface.

As shown in FIG. 1, on the back surface of the panel portion 1, there are provided projecting positioning pins 1c for positioning the panel portion 1 with respect to the panel bracket 3, one at each of the left and right upper portions. It is provided. Further, on the back surface of the panel portion 1, as hooks for hooking the panel portion 1 to the panel bracket 3, fixed hook-shaped fixed stoppers 1d are provided at left and right upper portions, respectively, and are also L-shaped. -Shaped fixing metal fittings 1e are provided one at each of the lower left and right positions.

The panel bracket 3 is provided with holes 3d for inserting the positioning pins 1c of the four panel parts 1 attached to the panel bracket 3.

The MQ board / thin plate 2a of the power supply unit 2 has an MQ
Protrusion-shaped hooking metal fittings 2c for hooking and mounting the board / power supply unit 2 on the panel bracket 3 are provided at the upper left and right portions and the lower right and left portions, respectively.

The panel bracket 3 is provided with holes 3e into which the respective hook metal fittings 2c of the four MQ board / power supply units 2 attached to the panel bracket 3 are inserted.

Although not shown, the housing 1b of the panel section 1 and the thin plate 2a of the MQ board / power supply section 2 each have a small opening portion, and these opening portions have B board 4
A harness for electrically connecting the upper driver IC and the signal processing circuit on the MQ board / power supply 5 is provided.

FIG. 3 shows a structure and an arrangement example of a structure arranged at an installation site for mechanically supporting the array type display device using the parts group shown in FIGS. 1 and 2. This structure is obtained by cutting an H-shaped steel of 125 × 125 mm in half in the longitudinal direction so that the cross section becomes T-shaped, and is called a T bar.

FIG. 3A shows a cross section of the T-bar 11. FIG. 3B shows the arrangement state of the T-bar 11 at the installation site from the front. The length of the T-bar 11 is more than a multiple of 480 mm, which is the vertical size of the panel bracket 3. The T-bar 11 is provided with two rows of screw holes 11a having a diameter of 15 mm in the longitudinal direction in conformity with 400 mm which is the interval between the two vertical holes 3a of the panel bracket 3. At the installation site, multiple T-bars 11
However, they are arranged at intervals of 960 mm, which is the lateral size of the panel bracket 3 (for example, fixed to the inner wall surface of the dome in a dome type stadium).

Next, a method of installing the array type display device using the parts group shown in FIGS. 1 and 2 will be described. At the installation site, as shown in FIG. 4, first, align one panel bracket 3 with the burrow hole 3a and the screw hole 11a of the T-bar 11, and insert the screw 12 into the screw hole 11a through the burrow hole 3a. To attach to the T-bar 11.

Subsequently, the second and subsequent panel brackets 3 are attached to the T-bar 11 one by one by the same operation. At this time, when mounting the panel bracket 3 directly below (or directly above) the panel bracket 3 already mounted,
As shown in (A and B in the figure are front and side views, respectively), by inserting the positioning pins 3b on the upper surface of the lower panel bracket 3 into the holes 3 on the lower surface of the upper panel bracket 3, , Align the two panel brackets 3 directly.

FIG. 6 shows a state in which a plurality of (3 vertical × 3 horizontal) panel brackets 3 have been attached to the T-bar 11 in this manner.

When the mounting of the panel bracket 3 is completed, subsequently, as shown in FIG. 7, the panel portion 1 is inserted into the hole 3d of the panel bracket 3, and the fixing stopper 1d and the fixing metal fitting 1e are inserted. Four pieces are attached to each panel bracket 3 by hanging them on the panel brackets 3.

Further, as shown in FIG. 8, the MQ board / power supply section 2, the hook metal fitting 2c, and the hole 3e of the panel bracket 3 are provided.
4 panels are attached to each panel bracket 3 by inserting into each panel bracket 3.

The panel section 1 and the MQ board / power supply section 2
Connect to and with a harness. As a result, the array display device (in the example in which the panel brackets 3 vertically 3 × horizontally 3 are attached to the T bar 11 as shown in FIG. 6, the panel unit 1 is arrayed vertically 6 × horizontally 6). Installation is completed.

As described above, the panel portion 1 which is a part including the pixel and the driver is manufactured without manufacturing a unit in which the pixel, the driver IC, the signal processing circuit and the power source are integrated.
And an MQ board that is a part that includes a signal processing circuit and power supply.
By using the power supply unit 2 as separate parts, a large housing for covering the driver IC, the signal processing circuit, and the power supply is not required. Further, the driver IC, the signal processing circuit, and the power source are not collected in one place, but the driver IC, the signal processing circuit, and the power source are included in separate parts, so that the heat generation points are dispersed into two parts, and Since the temperature rise is small, the exhaust fan is unnecessary. As a result, a low-cost array type display device can be realized.

The panel portion 1, which is an individual part,
The MQ board / power supply unit 2 and the panel bracket 3 are smaller and lighter than conventional units, respectively. At the installation site, these small and lightweight individual parts can be sequentially mounted, so installation work of the array type display device is performed. Can be done easily.

Further, by directly aligning the panel brackets 3 which are one of the parts, even if the size of the individual panel brackets 3 varies, there is a gap between the panel brackets 3. Since this can be prevented, the array accuracy can be improved.

Furthermore, the panel section 1 and the MQ board / power supply section 2
Since it can be easily attached to the panel bracket 3 with one touch by hanging it, the installation work is further facilitated. Also, during maintenance after installation, the panel unit 1 and the MQ substrate / power supply unit 2 can be easily removed from the panel bracket 3 with one touch, which facilitates maintenance work.

In the above example, the panel bracket having a size capable of mounting two panel portions in the vertical and horizontal directions is used as a part. However, not limited to this, the panel unit 1
Part may be a panel bracket of a size capable of mounting an appropriate number of panels in the vertical and horizontal directions, or a panel bracket of a size capable of mounting only one panel portion.

In the above example, the panel portion and the MQ substrate
Both the power supply and the panel bracket are separate parts, but only one of the panel, the MQ board and the power supply is separate from the panel bracket (the other one is integrated with the panel bracket. And the parts)
You may do it. Even in that case, since the panel section and the MQ board / power supply section are separate parts, it is possible to reduce the cost without increasing the cost due to manufacturing the unit in which the panel section and the MQ board / power supply section are integrated. A costly array type display device can be realized.

In the above example, the present invention is applied to an array type display device using LEDs as pixels.
The present invention may be applied to an array type display device using a light emitting element other than the above (for example, organic EL) as a pixel.

Further, the present invention is not limited to the above examples, and it goes without saying that various other configurations can be adopted without departing from the gist of the present invention.

[0065]

As described above, according to the present invention, in an array type display device in which a plurality of display elements having a fixed number of pixels are arrayed, parts including a pixel and a drive circuit (driver IC), a signal processing circuit and a power source are provided. Since the included parts are different from each other, it is possible to obtain a low-cost array type display device.

Further, at the installation site, small and lightweight individual parts may be sequentially installed, so that the operation of installing the array type display device can be easily performed.

Further, since the frame-shaped members, which are one of the parts, can be directly aligned with each other, the effect that the arrangement accuracy can be improved can be obtained.

Further, it is possible to easily attach a panel part or a signal processing / power supply part which is another part to a frame-shaped member which is one of the parts, and to connect the panel part or the signal processing / power supply part from this frame-shaped member. Since it can be easily removed, the effect of further facilitating the installation work and the effect of facilitating the maintenance work after the installation can be obtained.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration example of a group of parts for an array type display device according to the present invention.

FIG. 2 is a diagram showing a configuration example of a group of parts for an array type display device according to the present invention.

FIG. 3 is a diagram showing a configuration and an arrangement example of a T bar.

FIG. 4 is a diagram showing a method of attaching a panel bracket to a T bar.

FIG. 5 is a diagram showing a method of aligning panel brackets with each other.

FIG. 6 is a view showing a state where a plurality of panel brackets are attached to a T bar.

FIG. 7 is a diagram showing a method of attaching a panel portion to a panel bracket.

FIG. 8 is a diagram showing a method of attaching the MQ substrate / power supply unit to the panel bracket.

FIG. 9 is a diagram showing a configuration example of a unit in a conventional array display device.

10 is a diagram showing a method of installing an array type display device using the unit of FIG.

[Explanation of symbols]

1 panel section, 1a LED board, 1b housing,
1c Positioning Pin, 1d Fixed Stopper, 1e Fixing Metal Fitting, 2 MQ Board / Power Supply Unit, 2a Thin Plate, 2b
Case, 2c hook metal fittings, 3 panel brackets, 3a fool holes, 3b positioning pin, 3c, 3
d, 3e hole, 4B board, 5MQ board / power supply, 1
1 T bar, 11a screw hole

Claims (9)

[Claims] 1. A panel unit having a pixel and a drive circuit for driving the pixel, a signal processing / power supply unit having a signal processing circuit for supplying a signal to the drive circuit, and a power supply; and the panel unit. Among the frame-shaped member having a frame shape having an attachable size and having means for attaching to a structure for supporting the array type display device, the panel section and the signal processing / power source section are respectively And a separate first part and a second part, and at least one of the first part and the second part is a part different from the frame-shaped member, At least one of the other part and the frame-shaped member has a means for attaching the other part to the frame-shaped member. 2. The array-type display device parts group according to claim 1, wherein both the panel section and the signal processing / power supply section are separate parts from the frame-shaped member. Characteristic array parts for display devices. 3. The array-type display device parts group according to claim 1 or 2, wherein the frame-shaped member further includes means for positioning a plurality of the frame-shaped members with respect to each other. Array-type display device parts group. 4. The group of parts for an array type display device according to claim 1, wherein the means for attaching the another part to the frame-shaped member hangs the other part on the frame-shaped member. A group of parts for an array type display device, which is a device to be fastened. 5. A signal processing for forming a panel having a pixel and a drive circuit for driving the pixel, the frame having a size to which the panel can be attached, and a signal processing for supplying a signal to the panel and the drive circuit. A first step of attaching a frame-shaped member, which is a separate part from at least one of a circuit and a signal processing / power supply unit having a power supply, to a structure for supporting an array display device; Section and the signal processing / power supply unit, which are separate parts from the frame-shaped member, and a second step of attaching the parts to the frame-shaped member, and a plurality of sets of the frame-shaped member and the other parts. A method for installing an array type display device, comprising: 6. The method for installing an array type display device according to claim 5, wherein in the first step, a frame-shaped member that is a separate part from both the panel section and the signal processing / power supply section. Is attached to the structure, and in the second step, the panel unit and the signal processing / power source unit are attached to the frame-shaped member, respectively. 7. A signal processing for forming a panel having a pixel and a driving circuit for driving the pixel, the frame having a size to which a panel can be attached, and a signal processing for supplying a signal to the panel and the driving circuit. A plurality of frame-shaped members, which are separate parts from at least one of a signal processing / power supply unit having a circuit and a power supply, are attached to a structure for supporting the array-type display device, and the panel is provided. An array type display device characterized in that a part which is a part different from the frame-shaped member of the unit and the signal processing / power supply unit is attached to each of the frame-shaped members. 8. The array-type display device according to claim 7, wherein the frame-shaped member further includes means for positioning a plurality of the frame-shaped members with respect to each other. 9. The array-type display device according to claim 7, wherein the means for attaching the other part to the frame-shaped member is a device for hanging the other part on the frame-shaped member. An array type display device characterized by: