JP2000200054A - Louver structure module constituting huge screen display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a louver structure module capable of constituting a huge display allowing various sizes and being easy to construct and maintain. SOLUTION: The module 1 is an integrated structure body into which lots of blade members 11 are combined in parallel by two connection members 12 with gaps 14 arranged at regular intervals, and comprises many sets of LED lamps 13 arranged on one of the sides of each blade member 11, column transmission lines arranged in the connection members 12, row transmission lines connected in parallel by this column transmission lines and arranged in each blade member 11, a driving circuits of each set of LED lamps 13 connected in series by each row transmission line, a power supply terminal parts to receive power supply externally, a power sypply circuit to convert the electric power supplied to this power supply terminal part into a power supply for the driving circuits, and a signal terminal part to externally input various data for display control, and the various signals inputted to the signal terminal part are distributed and supplied to the driving circuits via the column and row transmission lines.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a structure of a module constituting a huge display.

[0002]

2. Description of the Related Art Urban building streets have various forms.
Display devices for designs are overflowing, and are used for various kinds of advertisements such as product information, service information, and news information. As everyone realizes, a large-screen display device is superior in terms of information transmission and appealing power. If you only want to convey fixed information, you only need a large sign and lighting,
In order to convey information that changes in various ways, a dot matrix type television screen type display device capable of freely displaying character information, moving images, and the like is used.

[0003]

Recently, high brightness LE
Display panels in which a large number of D-collection lamps are arranged vertically and horizontally have become widespread, ranging from very small to large screens.
In any case, this type of display panel has a solid panel structure having a considerable thickness. Many LEDs
Electronic circuits for driving the lamps are mounted on the back side of the panel on which the lamps are arranged. Naturally, there was no idea that the display panel could be seen through the back side of the panel so that the front side could be seen through the display panel, or that the lights on the back side could be seen from the front side of the panel.

However, when a certain kind of commercial building or event hall is newly designed, the outer wall of the building is made to have a curtain wall structure, and while keeping the inside and outside view through the transparent curtain wall, the building is turned toward the outside of the curtain wall. A design requirement has arisen for the desire to display a dot matrix type display on a large screen. However, the prior art has not been able to realize a dot matrix type super large screen display panel that can meet this demand.

[0005] The present inventors have proposed a transparent split display panel that meets the above-mentioned demands by applying for an application on March 21, 1997 (Japanese Patent Application No. 9-68457).
It is possible to apply this to a middle-rise or high-rise building, and the disclosure for split display control can be greatly utilized in the practice of the present invention, but as the screen becomes larger and the building becomes higher, the display becomes larger. The workability and maintainability of the device become a problem. Furthermore, displays of various sizes must be arranged in accordance with the number of pixels and the display area, which lacks versatility. Therefore, if a huge display is constructed by combining a large number of modules arranged vertically and horizontally, it is possible to improve the workability, maintainability and versatility of the display device.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a louver structure module that can be easily constructed and maintained, and that can constitute a large-sized display device with high versatility.

[0007]

The first invention has the following requirements (1) to (7). (1) A louver structure module constituting a dot matrix type display having a huge screen. (2) A structure in which a large number of blade members are combined in parallel at regular intervals by a plurality of connecting members and integrated.
There is a gap between adjacent blade members that is about the thickness of the blade member. (3) A large number of LED collective lamps are arranged at regular intervals on one side of each blade member. The arrangement pitch of each LED collective lamp and the arrangement pitch of each blade member are substantially equal. (4) Inside each slat member there is a row transmission line along its longitudinal direction, and the driving circuits of each LED collective lamp are connected in series by the row transmission line. (5) Inside the connecting member, there is a column transmission line along the longitudinal direction, and the row transmission lines of each slat member are connected in parallel by the column transmission lines. Signal terminals for externally connecting the column transmission lines are provided near both ends of the connecting member. (6) A display data signal and a control signal externally input to the signal terminal unit are distributed and supplied to the driving circuits of the respective LED collective lamps via the column transmission lines and the row transmission lines. (7) A power supply terminal unit for receiving power supply from the outside, and a power supply circuit for appropriately converting the power supplied to the power supply terminal unit and inputting the converted power to the drive circuit.

A louver structure module according to a second aspect of the present invention is characterized in that the louver structure module is provided with an optical axis variable mechanism for appropriately setting the optical axis of the LED collective lamp in the elevation / elevation angle direction.

The louver structure is characterized in that a signal terminal at one end of the column transmission line is an input terminal, and a signal terminal at the other end is an output terminal for relaying an input signal and outputting it externally. The module is the third invention.

A fourth aspect of the present invention relates to a louver structure module in which the thickness of the slat member is gradually reduced from the front to the back, with the wing plate member on the side where the LED collective lamp is disposed as a front surface. did.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS === Overview of Louver Structure Module === FIGS. 1 to 3 show an overview of a louver structure module (hereinafter, module) according to an embodiment of the present invention. FIG. 1 is a perspective view from the diagonally left front, and FIG. 2 is a left step view of the module 1. FIG. 3 shows a part of the module 1 as a perspective view from the rear left. The module 1 is a structure in which eight horizontal blades 11 are bridged over right and left columns 12 and are combined in parallel at a fixed interval to be integrated. On the front panel 15 of each slat 11, 16 LED collective lamps 13 are arranged. The arrangement pitch of the 16 LED collective lamps 13 is constant, and the 16 blades 11
It is almost equal to the arrangement pitch. In other words, 16 × 8 = 128 LED collective lamps 13 are arranged in one louver structure module 1 at substantially the same vertical and horizontal pitches. In the space between the blades 11 in the module 1, about 3
There is a 2 mm gap 14. When this is viewed at a certain distance from the module 1, the field of view on the other side of the module 1 is secured through the gap 14 between the blades 11. Also,
In the present embodiment, the thickness of the blade is gradually reduced from the front surface (the side on which the LED collective lamp side is provided) to the rear surface. Thereby, when the other side of the module 1 is viewed from the back surface of the module 1 through the gap 14, a sufficient field of view can be obtained even if the wing plate and the line of sight are not parallel.

The column 12 has a hollow rectangular cylindrical shape, and the column 12 has end units 18 forming both ends of the wing plate 11.
Is attached to the column. The end unit 18 is provided with a U-shaped mounting guide portion 17 conforming to the cross-sectional shape of the column 12 and the LED collective lamps 13 at both ends of the row, and is connected to the central portion of the wing plate 11 to connect the wing plate. Prop 1
The blade connecting portion 16 for bridging between the two is integrally formed.

Each LED collective lamp 13 in each module 1 includes an appropriate number of LEDs of each color of RGB, and is constituted by a total of 20 LEDs. These 20 LEs
D corresponds to one pixel of the display. The 20 LEDs are arranged so that the pixel shape is rectangular, and are appropriately arranged so that the pixel shape does not collapse even when one of the three primary colors is displayed in a single color. Further, the breakdown of the number of LEDs of each color of RGB is appropriately set in consideration of the color balance when displaying white. In addition,
In this embodiment, each LED collective lamp 13 corresponds to a lighting drive circuit.

In this embodiment, the front panel 15 of the wing plate 11 is rotatable up and down around its lower edge, so that the optical axis of the LED collective lamp 13 can be adjusted. FIGS. 4A and 4B schematically show the internal structure of the wing plate 11. (A) is a sectional view of the wing plate 11,
(B) is an enlarged perspective view of the wing plate 11. The wing plate 11 is a generally hollow member, and houses the drive circuit board 61 of the LED collective lamp 13 and the like. The front panel 15 has a lower end joined to a lower part front end of the wing plate by a hinge 65. The angle of the front panel 15 is adjusted by rotating the front panel 15 around the rotation axis. The front end of the upper portion of the wing plate 11 forms an arc-shaped curved plate portion (a wing-side curved plate portion) 63, and the upper side of the front panel 15 also extends rearward (a panel-side curved plate portion). 6
2 are integrally formed. The panel-side curved plate portion 62 slides along the upper side of the wing plate-side curved plate portion 63, and the bolts 64 pass through holes 65 extending in an arc direction formed in the panel-side curved plate portion 62. The bolt 64 is fastened to a nut 66 provided at the front end of the slat-side curved plate 63. Thereby, the front panel 15 is fixed in a state adjusted to an appropriate angle.

Note that the normal optical axis direction is one direction more than the horizontal direction.
Although the angle is set to be 5 degrees downward, the angle can be adjusted to plus or minus 15 degrees (that is, from 0 to 30 degrees downward from the horizontal direction). Of course, it is not limited to this angle. As for the angle adjustment mechanism, a plurality of front panels having different angles may be prepared, and the front panel having an appropriate angle may be used according to the installation position of the display.

=== Connection Between Circuit System in Module and Module === FIG. 5 shows a wiring structure in the circuit system in the module 1. The interior of each slat 11 is generally hollow. A plurality of signal lines 21 and power supply lines 2
2, and a circuit board 61 on which the drive circuit 23 of each LED collective lamp 13 is mounted is installed extending in the longitudinal direction. In addition,
The driving circuits 23 are connected in series by the row signal transmission lines 20 on the substrate 61.

The left and right columns 12 also have a hollow structure, and a column signal transmission including a plurality of signal lines 31 and a power supply line 33 in one of the columns 12 (the left column in this embodiment) along the longitudinal direction. A track 30 is provided. A connector 25 for connecting a signal line 31 of another module having the same configuration or a power supply line 33 from an external power supply is provided at an upper end and a lower end of the column 12 on which the column signal transmission line 30 is provided.
a and 25b. The connectors 25a and 25b have a male and female fitting structure at the upper end and the lower end of the column 12, so that another module 1 can be vertically connected and electrically connected. In this embodiment, the upper end is the input connector 25a, and the lower end is the output connector 25b. The signal input from the input connector 25a (previous module) side is output to the subsequent module 1 via the output connector 25b through waveform shaping and timing reproduction.

Power supply line 32 for connectors 25a and 25b
Terminals are connected to a switching regulator 24 at an appropriate position in the module 1 (in the column in this embodiment). The switching regulator 24 receives a power supply 32 supplied from the outside and creates a stable power supply for driving the drive circuit 23 and the LED collective lamp 13 of each unit in the module 1. Therefore, the column signal transmission line 30 includes a power supply line 33 for supplying power generated by the regulator 24, a plurality of signal lines 31, and an external power supply line 32. The external power supply line 32 "passes" the switching regulator 24 and is directly connected to the output connector 25b.

The row signal transmission lines 21 of each slat 11 are connected in parallel to the signal lines 31 and the power supply lines 33 of the column signal transmission lines 30. Thereby, the first module 1
Various data signals relayed / input from (to be described later)
And the power supply for the driving circuit 23 and the power supply for the LED collective lamp 13 are distributed to each driving circuit 23. In addition, each slat 11
The hollow portion in the slat 11 and the column 1
The hollow portion in 2 is communicated with a communication port, and the column signal transmission line 30 and the row signal transmission line 20 are connected via this communication port.

The above is the circuit system configuration of the module 1. When an actual display screen is configured by the modules 1, a module row in which the modules 1 are connected in the column direction is configured by connecting the connectors 25 a and 25 b of the modules 1. When a plurality of these module rows are arranged in a horizontal direction, a huge dot matrix screen installed on an outer wall of a building or the like is formed. When a huge screen display is actually installed, it is conceivable that the installation strength cannot be obtained only by connecting the connectors 25a and 25b only by the fitting structure. It would not be sufficient to have a fitting structure on the upper and lower columns 12. Therefore, a vertical rail or the like with a groove that is firmly fixed to the building is used, and each module row is supported / fixed along the groove of the rail and installed. When suspended from above, each module 1 may be supported by fixing the module 1 to a hanging wire.

=== System Configuration of Huge Screen Display === FIG. 6 is a block diagram showing an example of a display system including a huge screen display (hereinafter referred to as a display) composed of a number of modules. The display 50 is
By arranging nineteen module rows L1 to L19 in the horizontal direction, which are formed by serially connecting 50 modules in the vertical direction in a circuit manner, vertical (8 × 50) = 400 pixels, horizontal by 950 modules M1 to M950 (16 × 19) = 30
A four-pixel screen is configured.

Main controller 100 is provided with display 50
It is the center of display control in, and uses a general personal computer. The main controller 100 stores image data of a still image or a moving image to be displayed in a hard disk device or the like in a predetermined file format, and performs control for distributing the predetermined image data to a circuit system of a display panel according to a program. . Data distribution circuits S1 to S19 are connected to the modules at the upper end of each of the module rows L1 to L19, respectively. Nineteen data distribution circuits S1 to S19 are serially connected and coupled to main controller 100.

The pixel configuration of the display screen is 400 × 304, and the display control data of one pixel is a total of 2 bits of 8 bits each for RGB.
This is 4-bit color data. Therefore, image data for one frame is 400 × 304 × 24 bits. Main controller 100 serially outputs image data for one frame as parallel data of one pixel = 24 bits at high speed. Of course, a clock signal, a frame synchronization signal, and the like are simultaneously output for data transfer.

One module row Li has 50 modules, and one module has 16 × 8 = 128.
There is an LED collective lamp for pixels. Therefore, one module row needs image data of 50 × 128 pixels. Each data distribution circuit Si corresponding to each module row
(I is an integer of 1 to 19) is a module which receives data of 128 × 50 = 640 pixels required for each column among image data of one frame output from the main control device 100, and Transfer to column Li.

The data of one module column sent from each data distribution circuit Si to the corresponding module row Li is:
It is sent out to each of the 50 modules. Further, as described above, there are connectors at the upper end and the lower end of the column of the module, and the color data input to the upper end connector is relayed / output to the lower end connector in accordance with the signal flow. In each module, the driving circuit of each LED collective lamp mounted in each blade is 128 × 50
It receives and temporarily stores 24-bit color data for itself among the image data for the pixels, and controls and drives the LED collective lamp based on the data.

=== Configuration of Drive Circuit === A schematic configuration of the drive circuit 23 is shown in FIG. As described above, the drive circuit 23 is mounted on the substrate 61 corresponding to each LED collective lamp 13, and is connected to LEDs of each color of RGB constituting one pixel. The row signal transmission line 20 branched in parallel from the column signal transmission line 30 connects the drive circuits 23 in the row in series. Various signals input to each drive circuit 23 are input to a data selector 43 via an input buffer 42. The data selector 43 selects and extracts 24-bit color data for itself and transfers it to the display circuit, and also supplies a necessary clock and synchronization signal to the display circuit 50. Further, it performs waveform shaping and timing reproduction of the input various signals, and outputs the signals to a subsequent drive circuit belonging to the same row via the output buffer 44. The power supply line in the row signal transmission line 20 is appropriately supplied according to its use (for a drive circuit, for an LED collective lamp).

FIG. 5 shows a schematic configuration of the display circuit 50. The 24-bit color data input from the data selector 43 is temporarily stored in the data memory 51. The controller 52 controls the data memory 51 and the LED driver 53 according to a clock and a synchronization signal provided from the selector 43. The LED driver 53 acquires the color data received from the data memory 51 as gradation data for each color, and generates a drive signal pulse-width modulated according to the gradation data. Then, by turning on the LED of each color with the drive signal of each color, a gradation corresponding to the pulse width is reproduced.

=== Others, Supplement, etc. === In the above embodiment, the module has a structure in which a wing plate is stretched between two columns, but when the distance between the columns is long, three modules are used. A wing plate may be hung over the above-mentioned support.
Thereby, the rigidity and mounting strength of the module itself can be increased.

Further, in the above embodiment, when the display is installed, the columns are extended in the vertical direction and the blades are hung horizontally. However, a connecting member having the columns in the horizontal direction is used as a connecting member. You may make it hang a wing board vertically between components. Of course, it does not matter even if it is oblique.

There is one switching regulator for each module, and the power supply line from this regulator is distributed to all drive circuits and LED collective lamps in the module. However, a regulator may be provided for each blade. Good. In this case, the external power supply line may not be passed through the columns of the modules, but may be provided along the columns of the module rows on the building side where the display is installed. Then, a contact point for connecting the external power supply line and a regulator for each wing plate may be provided at a joint between the column and the wing plate of each module. The connector for connecting the modules may not be a contact type, but may be a non-contact type using an optical communication connector or the like.

[0031]

According to the present invention, a huge display can be constructed by arranging a large number of modules in the horizontal direction and the height direction. Even if the huge display constructed by this module is installed inside the transparent glass outer wall of the building, the module can be seen through the front and back except for the wing plate and the pillar, so the huge display itself can see the front and rear view It does not significantly obstruct the obstruction, nor does it significantly impede the introduction of external light through the transparent glass outer wall. Therefore, it is possible to provide a comfortable space for the people in the building, and to show spectators with an extremely large screen a variety of image expressions to the audience in front of the building.

In addition, the entire display can be constructed by bringing in and combining small modules.
When installing a temporary huge screen display at a concert venue, it can be quickly installed and withdrawn. Even if it is installed permanently on buildings, etc.
It goes without saying that wiring work and maintenance become easy. Also, at the time of renewal, the display performance of the display can be improved by replacing it with an improved module, so rail members etc. for installing the display can continue to be used without moving, and the effect of resource saving is large, Also, the working cost and the construction period are advantageous.

Further, by making the optical axis of the LED vertically variable, it is possible to adjust the viewing angle in an optimal viewing direction according to the height of the huge display itself and the height at which it is installed. Further, by setting the signal terminal (connector) at one end of the column signal transmission path to the input side and the other to the output side, wiring is completed only by connecting the modules. Therefore, wiring work at the time of installation or maintenance is not required. Therefore, costs related to installation and maintenance can be reduced.

By gradually reducing the thickness of the slat member from the surface (front surface) on which the LED collective lamp is provided to the rear surface, the viewing angle from the rear of the module to the other side through the module is increased. be able to.

[Brief description of the drawings]

FIG. 1 is a perspective view from the upper left front side of a module according to an embodiment of the present invention.

FIG. 2 is a left side sectional view of the module.

FIG. 3 is an exploded perspective view when a part of the module is enlarged.

FIG. 4 is a sectional view (A) and an enlarged perspective view (B) of a blade in the module.

FIG. 5 is a schematic configuration diagram of a circuit system in the module.

FIG. 6 is a configuration diagram of an example of a huge screen display configured by the modules.

FIG. 7 is a configuration diagram of a drive circuit in the module.

FIG. 8 is a configuration diagram of a display circuit unit in the drive circuit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Module 11 Feather plate 12 Support 13 LED collective lamp 15 Front panel 20 Row signal transmission line 23 Drive circuit 30 Column signal motorized line 50 Huge screen display

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5C080 AA07 BB05 DD01 DD14 DD27 DD28 EE01 EE17 GG08 JJ02 JJ06 5C094 AA14 AA41 AA43 AA52 AA60 BA12 BA23 CA19 CA24 DA01 DA05 ED16 HA01

Claims (4)

[Claims] 1. The invention specified by the following items (1) to (7). (1) A louver structure module constituting a dot matrix type display having a huge screen. (2) A structure in which a large number of blade members are combined in parallel at regular intervals by a plurality of connecting members and integrated.
There is a gap between adjacent blade members that is about the thickness of the blade member. (3) A large number of LED collective lamps are arranged at regular intervals on one side of each blade member. The arrangement pitch of each LED collective lamp and the arrangement pitch of each blade member are substantially equal. (4) Inside each slat member there is a row transmission line along its longitudinal direction, and the driving circuits of each LED collective lamp are connected in series by the row transmission line. (5) Inside the connecting member, there is a column transmission line along the longitudinal direction, and the row transmission lines of each slat member are connected in parallel by the column transmission lines. Signal terminals for externally connecting the column transmission lines are provided near both ends of the connecting member. (6) A display data signal and a control signal externally input to the signal terminal unit are distributed and supplied to the driving circuits of the respective LED collective lamps via the column transmission lines and the row transmission lines. (7) A power supply terminal unit for receiving power supply from the outside, and a power supply circuit for appropriately converting the power supplied to the power supply terminal unit and inputting the converted power to the drive circuit. 2. The louver structure module according to claim 1, further comprising a variable optical axis angle mechanism for appropriately setting the optical axis of the LED collective lamp vertically. 3. The column transmission line according to claim 1, wherein a signal terminal portion at one end of the column transmission line is an input terminal, and a signal terminal portion at the other end is an output terminal for relaying an input signal and outputting it externally. A louver structure module, characterized in that: 4. The blade member according to claim 1, wherein a thickness of the wing plate member is gradually reduced from the front surface to the rear surface with the side on which the LED collective lamp is provided as a front surface. Louver structure module characterized by going.