CN101317206A - large display system - Google Patents
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- CN101317206A CN101317206A CN200680044089.5A CN200680044089A CN101317206A CN 101317206 A CN101317206 A CN 101317206A CN 200680044089 A CN200680044089 A CN 200680044089A CN 101317206 A CN101317206 A CN 101317206A
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- G09F19/22—Advertising or display means on roads, walls or similar surfaces, e.g. illuminated
- G09F19/227—Advertising or display means on roads, walls or similar surfaces, e.g. illuminated on windows
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- G09F19/226—External wall display means; Facade advertising means
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Abstract
A large LED display system (12) disposed on a building structure (100) is disclosed. The system has a screen (12) made up of a plurality of side-by-side foldable or rollable display panels (14). Each panel has a plurality of equally spaced transparent polycarbonate tubes (80) which house pixel cells (50) of LEDs (51) connected to a printed circuit board (120) and a row controller (121) for controlling the brightness of the LEDs. The bus section (54) transmits the electric signals and the video control signals from the panel controller (77) to each row controller. The panel controller has an initialization process adapted to assign a temporary address of the pipe and to determine the screen size accordingly. The line controller extracts the video segment based on an address associated with the video control signal from the panel controller.
Description
The present invention relates to be used for the large scale display system of display image.
Background of invention
Large scale display system is used to show the on-the-spot broadcasting TV broadcast event, blessing during such as sports tournament or stage amusement performance, advertisement and targeted promotional material, festival celebration or the like.Usually, light emitting diode (LED) is arranged to form pixel, and it can be controlled to provide the image in the whole visual Color Range.The known display system of applicant is to be made of machinery and the rigidity display board that is electrically connected to together.So the plate that is connected is supported on rigidity and the solid supporting construction.These display boards must machineries and are electrically connected as a unit.Thereby known display system is heavy relatively.Like this, it is just expensive to transport and assemble their cost.Because structure and transport restrictions, the screen dimensions of these known systems is limited in about 120 square metres.
For known display system is supported on the buildings, necessary assembled on site of this kind system and the lifting gear that passes through such as crane are located, and are fixed to simultaneously on the wall of buildings.The fastening apparatus that is used to support this kind system must be fixed to wall.Inevitably, this will damage the outward appearance of buildings.Fastening display system will stop that also light enters some window on the described wall and hinder to see through the visual field of window.
Known display system is provided with in fixing range of size.Because known display system is difficult to customize different screen dimensions, also is difficult to be made into the shape of the screen except that rectangle plane, so underaction.Because known display system is a rigidity, so they can not be transformed into crooked screen.
Because the sky high cost of transportation and assembling known display system, it is uneconomic that their short-terms during for the festival celebration occasion in for example Christmas Day and New Year and so on are used.
The display system of prior art is arranged its LED to form the matrix of equidistant pixel.Transmit electric energy and control signal along the lead that is connected to LED.Therefore, these systems need a large amount of leads and electric connector, and this has further increased the cost and the weight of these systems.The number of lead and connector also causes relative long built-up time.
The LED of prior art systems is fixed on and faces the position.Sun-drenched the time, because bright natural light almost can't be seen outdoor by the image that LED forms.
When prior art system was not worked, it looked similarly to be a dark rectangle and not attractive in appearance.
Goal of the invention
An object of the present invention is to provide a kind of large scale display system, its elimination or reduce one or more above-mentioned shortcoming to certain degree.
Brief summary of the invention
Therefore, the present invention relates to be used for the large scale display system of display image on the one hand.This system comprises: the display screen that is formed by one or more collapsible display panels that maybe can curl, described one or each described display panel have the display segment that at least one is formed by the cross-wire of the matrix that is arranged in rows and columns, and separated pixel cell is supported by one or more electric wires in the described row or column, perhaps supported along the Support Level that the described display panel of described or each extends by one or more, and the separated pixel cell pixel that is configured to controllably power; The bus parts of arranging along edge of display screen or arranging along an edge of described or each described display panel are used for electricity and/or control signal are delivered to described electric wire; And processing unit, it is configured to supply the brightness of described control signal with the control pixel to the bus parts.
Thereby another aspect of the present invention relates to a kind of large scale display system that is used for display image.This system comprises: the display screen that is formed by one or more display panels, described one or each described display panel have the display segment that at least one is made of separated elongated member, each elongated member has the conduction carrier that is supported on wherein, and separated controllable pixel unit is installed on the described conduction carrier, and the pixel cell in the elongated member is arranged to form picture element matrix; Arrange along edge of display screen or, be used for electricity and/or video data signal are delivered to described carrier along the bus parts that described or each described display panel or each opposite edges are arranged; And the bus parts of described or each described display are communicated by letter with the panel control module, this panel control module is configured to supply described electricity and/or video data signal to the bus parts of described or each panel/section, controllably giving its described pixel cell power supply, thus the brightness of control pixel.
In one form, each elongated member all has video control unit, and this video control unit is configured to controllably power to described pixel cell wherein in response to video data signal.In a kind of alternative form, this elongated member is set at least one group of elongated member that is linked, and one of elongated member that is linked of a group or every group has video control unit, this video control unit is configured in response to video data signal, controllably the described pixel cell power supply in the elongated member that is linked.
Preferably, described panel control module is configured to from the video source receiving video signals, and converts the vision signal that is received to the modulating video data-signal to be delivered to the bus parts.This video data can be superimposed upon in the power supply to pixel cell.
The panel control module can have apparatus for initializing, is used for the interior video control unit of initialization elongated member to respond video data signal under the situation that is assigned to the elongated member appropriate address.This apparatus for initializing also can be configured to determine screen or panel pixel size.
Described display system on the other hand can have the suspender that is used for hanging described elongated member on vertical or horizontal interval direction.This suspender can comprise one or more and/or the one or more of suspension line in the described bus parts that extend along the described display panel of described or each.Because bus parts/suspension line is pliable and tough relatively, so this display panel can fold or curl.
As expected, each described bus parts and/or every described suspension line are associated with a plurality of retention clip, and each retention clip wherein is configured to clamping and is placed on wherein elongated member.Preferably this retention clip moves rotationally, thereby can optionally locate the direction of this elongated member.
Preferably, this display screen is made of two or more described display panels side by side, and the adjacent display segment of display panel arranged side by side can be configured to and can interconnect.Thereby, can optionally dispose the size of this display screen.This elongated member may be molded to has end flange, and this end flange can be interconnected an end of each elongated member in the display panel with the abutting end of respective elongated parts in the adjacent display panel by moulding one-tenth.Alternatively, the abutting end that can provide coupling unit to be used to interconnect display panel arranged side by side.
Can form conduction carrier in each elongated member with the flexibility or rigidity material.Preferably, it forms and has the circuit board that one or more is used for the control circuit module of respective pixel unit.
Preferably, this display system has heat-transfer device, and it is suitable for heat is reached its outside from the conduction carrier in each elongated member.Under a kind of form, this heat-transfer device has the heat dissipation element that is fixed to each elongated member, and one or more retaining element of being made by Heat Conduction Material is suitable for heat dissipation element is fixed to the elongated member that is associated and heat is reached heat dissipation element from described conduction carrier.
Usually, the bus parts are set up and transport control signal, so that the control circuit module on the coupled conduction carrier can be according to the brightness of this control signal control LED.
These bus parts also can be configured to transport the alternating-current power supply of the control signal that is marked with pixel cell, and these control circuit module are configured to convert alternating-current power supply to dc power supply, for pixel cell to LED power supply and filtering control signal to control the brightness of LED.
Each elongated member can be formed to have along the cavity of its extension and by substrate, rear wall, unlimited antetheca or the antetheca and the top of substantially transparent and surround.The conduction carrier is installed in this cavity, and pixel cell is configured to make LED towards the described unlimited antetheca or the antetheca of substantially transparent.Preferably, pixel cell is placed with and makes LED leave the described unlimited antetheca or antetheca one segment distance of substantially transparent.Like this, minimum sunlight can directly be mapped on the LED.
The top of each elongated member can have is arranged to movably top board.Owing to can change sign easily, it is favourable that the top is used as marking plate.Preferably, the top of each elongated member is formed has relative groove, for holding this top board movably.One of described groove is formed in the flange, and this flange extends to the described unlimited antetheca or the antetheca front of substantially transparent.Thereby this flange is as the sunshading board of LED.
Preferably, each elongated member all has the anti-dazzling screen that extends from the antetheca of described unlimited antetheca or substantially transparent.More preferably, this elongated member is configured to controllably regulate direction so that it can be according to the incident angle of sunlight and the adjustable ground location.
Preferably, described connector component is that type is pierced through in insulation, and it has the insulation course that is configured to penetrate around adjacent wire to be connected so that connect conductor element relatively rapidly.
Preferably, described one or each described display panel have a plurality of display segments of lining up array, and the machinery and/or be electrically connected each other of the adjacent display segment in the described array.Adjacent display segment in described array is during by mechanical connection, and described adjacent section is electrically insulated from each other.
Every in described one or more osculatory all can be to be set for the wire rope that supports pixel cell.
Display screen can have end face, bottom surface and relative side, and can the bus parts be set along end face or one of bottom surface or opposite flank.As expected, this bus parts are set along one of opposite flank, and these row or every row display segment can be made of solid conductor, this lead is configured to each coupled pixel cell supply control signal.More conform with desirably, each row comprises the signal path between the solid conductor that is connected in bus parts and the every row, thereby with the lead of control signal from the bus component feed is listed as to each.
This system can have the decoding device that is used for control signal is decoded as decoded signal, and this decoding device is configured to provide the described brightness of decoded signal with the control pixel.Preferably, decoding device comprises the demoder that is used for every capable electric wire.Can this demoder be set or it is attached in the pixel cell along the bus parts.
Each pixel cell can have one or more controlled light emitting diodes (LED).Preferably, each described pixel cell has red LED, green LED and blue LED, and processing unit is configured to produce control signal, and these control signals can be controlled LED in the pixel cell and produce brightness in the almost whole spectral range.
Preferably, each pixel cell has housing, and this housing is configured to hold described one or more LED.The reverberator that this housing can have unlimited front and be configured to reflect with substantially parallel path by this front of opening wide the light of LED.Can the lid that be configured to lens be set in the front of opening wide.Preferably, to be configured to be waterproof to pixel cell.
This housing also can have the arrangements of electric connection that the electric wire that is used for intersecting is connected with LED.Preferably, this coupling arrangement comprise the insulation pierce through the type connector so that can relatively promptly carry out the connection of electric wire.
This display system also can comprise the limit pendulum device that is used to limit described display screen swing.A kind of form of limit pendulum device can have a plurality of separated dismountable securing members that are used for display screen is fastened to supporting construction.Preferably, this dismountable securing member is associated with specific pixel cell, so that entire display screen is limited swing basically.The form of removable fasteners can be the tether that is used to hitch supporting structure part, perhaps is used for fixing the adsorption plant on the smooth relatively surface of supporting construction.
Display system also can be included in the bracing or strutting arrangement of the described display screen of supporting construction upper support.This bracing or strutting arrangement can comprise a pack support, and these supports are configured to be removably fixed to supporting construction, and one or the top of each display panel not folding or that do not curl of supporting display screen.Alternatively, one or each display panel can make its top be fixed to roller, and this bracing or strutting arrangement can have the coupling shaft that extends through roller, this coupling shaft is configured to rotate described roller, so that display panel is retracted on the described roller for storage or transportation, and stretch in use.Drive unit can be associated with coupling shaft so that rotate described roller.Drive unit can comprise and being coupled to drive the controllable motor of described coupling shaft.
Bracing or strutting arrangement also can comprise the suspension cable that is configured to hang display screen.
The end face of display screen, bottom surface and relative side may be molded to the concrete shape that meets supporting construction.
Preferably pixel cell be set to form from about 25 millimeters to about 100 millimeters pel spacing, this spacing based on the expectation viewing distance and decide.
This display screen provides the partially transparent degree because of interval relatively large between the pixel cell or spacing, and uses lead to support pixel cell and transport electricity and control signal.This device makes the personnel that see to the window outside of the buildings that is used as supporting construction to have an X-rayed.Because relatively large spacing between the pixel cell, wind load is also less relatively.Because this display screen is can curl or folding, it can be bent to meet the shape of supporting construction.Therefore, it can be used on nonplanar supporting construction.Therefore, display panel can be wound up the somewhere of storing and being transported to such as multi-story structure, this display surface coiled sheet can be opened for short-term there and be used.
Description of drawings
In order to be easier to understand the present invention and make the present invention produce actual effect, referring now to the accompanying drawing that a preferred embodiment of the invention is shown the present invention is described, in the accompanying drawings:
Fig. 1 schematically shows an embodiment according to large LED display system of the present invention who is supported on the multi-story structure;
Fig. 2 is the partial view that the matrix of wires in the display panel of system shown in Figure 1 is shown;
Fig. 3 is the stereographic map that the display surface coiled sheet that just is being pushed on trolley is shown;
Fig. 4 is the partial view that the display panel details is shown;
The lead that Fig. 5 illustrates the concrete pixel cell that is connected to display panel connects;
Fig. 6 is the stereographic map of the pixel cell of display panel;
Fig. 7 is the viewgraph of cross-section of pixel cell shown in Figure 6;
Fig. 8 illustrates the limit ornaments a kind of form fully that is used for according to system of the present invention;
Fig. 9 is the partial view that the sweep of display panel is shown;
Figure 10 shows the view that a width of cloth sees through the window of the buildings that is supported with display system shown in Figure 1;
Figure 11 shows another embodiment according to display system of the present invention;
Figure 12 shows the signal control device that is used for according to display system of the present invention;
Figure 13 shows a width of cloth and sees through the view be equipped with according to the window of the buildings of the another embodiment of large LED display system of the present invention;
Figure 14 is a partial view, shows the process of the display panel that system shown in Figure 13 is installed;
Figure 15 is the stereographic map that the display surface coiled sheet of the system as shown in figure 13 that just is being pushed on trolley is shown;
Figure 16 is three-dimensional phantom view, shows the details of the elongated member in the display panel;
Figure 17 is the schematic partial view of the picture element matrix that forms of the pixel cell by display panel;
Figure 18 is the partial perspective view that the suspender of the elongated member that is used for display panel is shown;
Figure 19 is the partial perspective view of another kind of form that the suspender of the elongated member that is used for display panel is shown;
Figure 20 is the partial perspective view of opposite end that the respective elongated parts of adjacent display panel are shown;
Figure 21 is the schematic end cross-section that is illustrated in the adjacent elongated parts of four turned positions;
Figure 22 is the partial schematic stereographic map that a kind of form of the elongated member that is associated with heat dissipation element is shown;
Figure 23 illustrates the limit ornaments a kind of form fully that is used for system shown in Figure 13;
Figure 24 is a kind of partial perspective view of form that has the bus parts of separated insulating puncturing connector assembly;
Figure 25 shows a connector assembly shown in Figure 25 when fastener formula built-up member separates;
Figure 26 shows the fastener formula built-up member shown in Figure 26 that is in assembled state;
Figure 27 shows the partial perspective view of the elongated member of another kind of form, is provided with the groove that is used to hold from the connector of circuit board at the rear wall of this elongated member;
Figure 28 shows and will be connected to the elongated member shown in Figure 28 of a connector assembly;
Figure 29 illustrates a kind of form that is used for locating engagement device that adjacent elongated member is engaged one another with aiming at;
Figure 30 illustrates the signal control device that is used for display system shown in Figure 13;
Figure 31 is the indicative icon that the critical piece that is used for the vision signal processing is shown;
Figure 32 and 33 is block diagrams that the specific features in panel controller and the line control unit is shown respectively; And
Figure 34 to 41 show in the work of being in line control unit at the state of each step.
Embodiment
At first with reference to the accompanying drawings 1, show a embodiment according to large LED display system 10 of the present invention.This display system 10 is supported on the multi-story structure 100, and extends significant part of outside surface of buildings 100.As shown in the figure, display system 100 is supported on the roof 102 of buildings 100 and extends multilayer downwards.
Each display panel 14 forms by the array that is mechanically connected to display segment 32 (seeing Fig. 2 and Fig. 9) together by male part 34.As shown in Figure 4, each display segment 32 all has the row 36 and the row 38 of lead.In this embodiment, each row 38 has single signal wire 40, and each row 36 has three and is used for the electric wire 42 to 46 of the red LED in the pixel cell 50, green LED and blue LED power supply on this row and the signal transmission line 48 that is connected to column signal line 40 by chain path connector 52 (see figure 5)s.Side along display screen 12 is provided with bus 54.Bus 54 has the decoding unit 56 that is connected to lead in every row 36.This decoding unit 56 is configured to decode and is addressed to the video control signal of pixel cell 50 in the particular row, and to described pixel cell 50 power supplies with decoded signal is provided.Alternatively, pixel cell 50 can comprise the demoder (not shown) that is used for decoding control signal, and to be denoted as 56 box be the connector that is used to couple a wire to bus 54.
With reference to figure 6 and Fig. 7, each pixel cell 50 has housing 58, and wherein three LED are fixed and are connected to alignment 40 and line 42 to 46.Housing 58 is made the light from LED be reflected to the front that is covered by lens 60 that it opens wide by moulding one-tenth.Lens 60 and/or housing 58 can be configured to increase the visual angle or concentrate the light that outputs to certain specific direction.Because alignment 40 is relatively greater than line, so it also is used to support pixel cell 50.Alternatively, available translucent lid covers this front of opening wide.
Since display panel 14 can be crooked meeting the shape shown in Fig. 9, so it can be used on nonplanar structure.
The sizable spacing (＞50 millimeters) and supported because the pixel cell 50 in the present embodiment is separated by by alignment 40, so display screen 12 allows to see the panorama of the window 106 that sees through buildings 100 as shown in figure 10 in fact.
Thereby the control bus 54 of each display panel 14 is configured to receive electric energy and control signal to be shown as Fig. 1 and image 15 shown in Figure 11 with the LED of power supply and control pixel cell 50.Control signal is by the decoder decode in decoding unit 56 or the pixel cell 50.The brightness of then controlling LED through the signal of decoding is to form image.So far, signal processing apparatus 70 is used to power and control signal is provided to bus 54 (seeing Figure 12).This treating apparatus 70 comprises signal processing unit 74, and it is configured to from video source 72 receiving video signals and handles this vision signal to produce control signal, and this control signal is transmitted to distributor 76 control signal is distributed to suitable bus 54.Decoder decode in decoded then unit 56 of this control signal or the pixel cell 50.
Go to the another embodiment of system shown in Figure 13 now, this large LED display system 10 is supported on the multi-story structure 100 (sees Figure 14), and it extends significant part of outside surface of this buildings 100.Display system 10 is supported on the roof 102 of multi-story structure 100 and extends multilayer downwards.People in the buildings can transmission display system 10 the window appreciation scenery outside window that extends thereon of screen 12.
Again with reference to Figure 14, display panel 14 is supported on as above with reference on the figure 2 described suspenders, just the bus parts 54 in the present embodiment also can be randomly with separated carrying suspension line 40 as sprung parts.In the present embodiment, the bus parts are set at the inboard of the left hand edge of each display panel 14.Display panel 14 in the present embodiment has a plurality of vertical separated parallel elongate parts 80, and it is by holder 82 clampings, and these holders are fixing with interval along suspension line 40 and bus parts 54 (seeing Figure 18).Elongated member 80 is separated equally spacedly and each elongated member 80 is all formed by the transparent tube that has vertical cavity 84 as shown in figure 16, and it is surrounded by antetheca 86, rear wall 88, bottom 90 and top 92.Top 92 has the removable top panel 94 that is maintained in groove 96 and 98, and groove 96 and 98 is formed in the respective flanges 110 and 112 at top 92.Flange 112 is configured to make it to extend on antetheca 86 with the baffle plate as LED.Though not shown, the inventor has conceived a kind of baffle plate that controllably moves and has hidden LED, so that the covering degree on the antetheca 86 can be according to the incident angle of light or the time in day/season and adjusting automatically.
The sunshading board that is arranged on the LED pixel cell 50 in the cavity 84 is made and be used as to lath 94 by non-transparent material.Alternatively, top 92 can have roof 93, and it can be sprayed paint with the sunshading board as pixel cell 50.Shading lath 94 also can be used as the advertisement or promotion material, and wherein each lath 94 forms a long and narrow sheet of whole advertisement or promotion sign.Because this lath 94 is movably, therefore can changes sign and adapt to specific propaganda or advertisement.
Therefore, electric energy by be connected to main elongated member or manage 80 and the lead 113 of bus parts 54 and 114 transmit.Lead 115 and 116 is relayed to electric energy and the vision signal through decoding from managing 80.In a replacement scheme, bus parts 54 totally can form suspended structure.Be reduced to lower dc voltage with 48 volts rated voltage transmission of electricity and by the power transformation circuit in the control module 121.Can be injected on the alternating current cable of controller to the control signal of pixel cell 50 and on pipe electrical equipment, leach, perhaps via conductor or the optical fiber (not shown) of additional slave controller to pipe electrical equipment.
So LED 51 forms the pixel of the screen 12 of part as shown in figure 17.
Figure 19 shows a kind of form of holder 82, and this holder makes elongated member 80 optionally tilt, to present advertisement and identifier on lath 94, for watching or regulate screen orientation from the front of display 12.The holder 82 that goes out as shown has a pair of retaining element 124 and 126 that is used for fixing corresponding suspension line 40, and the holder 128 that is connected to retaining element 124 and 126 rotationally.Use the elongated member 80 that is retained in the holder 128 shown in dotted line, spur electric wire 40 relative to each other, make this elongated member 80 tilt according to such shown in the curve according to the direction that illustrates.Thereby advertisement lath 94 can be tilted to present from the front of screen 12 or the appreciable sign carrying plane of vergence direction of screen 12.
With reference to Figure 21, show two in the vertical separated elongated member 80 that is in 0 ° ,-35 ° ,-55 ° and-70 ° four position of rotation.In the time of 0 °, top 92 is 20 ° from the elevation angle of surface level, thereby flange 112 extends along this angle.Can adjust this corner, to adapt to apart from the audience of screen 12 each distances.
The form of elongated member 80 shown in Figure 21 is configured to make parts 80 to rotate around the pivot of its corresponding lower right corner 90A.Parts 80 are positioned at 0 ° of its flange 112 and engage with the end face of parts 80 below corresponding.Thereby flange 112 is used to limit the position that turns at-70 ° as brake component, can see the advertising message that top panel 94 forms herein.
In order to minimize the swing of screen 12, bus parts 54 and suspension line 40 are fixed to limit pendulum parts 62 (only showing in Figure 23), and these limit pendulum parts are secured to wall or other structure of buildings.
Figure 12 is described as reference, the bus parts 54 of each display panel 14 be configured to receive electric energy and control signal are powered and the LED that controls pixel cell 50 with display image.In this embodiment, control signal preferably is injected in the power supply.Because pixel cell 50 needs direct supply, so be converted into lower dc voltage along the change-over circuit of the power supply of bus parts 54 control module by being built in each pixel cell 50.The filtering circuit that is built in each control module is configured to control signal is leached from power supply, and this control signal that leaches then is built in the decoding unit decodes of the control module of pixel cell 50.The brightness of controlling LED through the signal of decoding then is to form image.For this reason, as shown in figure 24, use signal processing apparatus 70 to bus parts 54 power supply and supply control signals.Treating apparatus 70 comprises signal processing unit 76, and it is configured to produce video data signal from video source 72.The video data signal that is produced is transferred to panel control module 77, and the video data signal that each panel control module is configured to be produced is modulated in the power supply.Bus parts 54 transport modulated vision signal and power supply for the video control unit 121 of the elongated member 80 that is delivered to each display panel 14 with its decoding.Control module 122 is then according to the brightness of controlling LED through the vision signal of decoding.Modulated vision signal can be injected into bus parts 54 or leach or inject or leach by the lead that separates from it.
With reference to Figure 25, shown bus parts 54 are the insulation flat cables that have a plurality of conductor group 54A to 54D.Separated insulating puncturing connector assembly 150 is provided with along cable 54.The clearer connector assembly that illustrates is a fastener formula assembly type in Figure 26, has be suitable for holding cable 54 basic and is first parts 152 and second parts 154 with mutually compatible shape of U-shaped.Parts 152 and 154 are configured to and the cable between the two 54 is assembled together by fastener as shown in figure 27.For this purpose, parts 152 have a pair of hook element 156, and each hook element all extends from turning over arm (upturned arm) 152A (only showing), and formed thereon the turning among the arm 154A of a pair of clamping hole (not shown) of second parts, 154 usefulness.
In one of end clips gripping member 157, form positioning recess 162 (seeing Figure 130) and on relative end clips gripping member 157, form socket 164.Holder 157 is configured to be positioned in the recess 162 of respective tube 80 of adjacent panels 14 by the socket 164 with the pipe 80 in the panel 14 locatees adjacent pipe 80.So this recess and socket are used for location and alignment tube 80, thereby keep moving and rotation precision.
Have small magnet in recess/socket back, it is locked into the opposite magnetic fields of another pipe and locatees according to this recess and socket.By this mode, array is coupling together self when forming single screen by rolling volume separately, enables and machinery insertion that inactive display is required and the amount of extracting thereby reduced significantly for specific situation.
With reference to Figure 31, apparatus for processing of video signals 70 as shown in the figure has the panel control module 77 of each panel 14 that is used for display screen 12.As shown in figure 30, panel control module 77 is connected in series.Leftmost control module 77 is connected to the video processing unit 76 that receives audio frequency and view data from video source 72.Video processing unit 76 in the case has a plurality of digital visual interfaces (DVI) 73 that are used for providing to a plurality of display systems 10 digital video signal.Panel control module 77 is configured to modulate the DVI signal and generates modulated vision signal on the modulation lines 1 of the management and control system of being connected to unit 121.Treating apparatus 70 also has the string line 2 of the control module 121 that is connected in series.
Each control module 121 in the present embodiment is configured to control separately and is responsible for 80 and a plurality of from managing 80.
The single DVI that exports from the interface 73 of processing unit or PC76 is transported to first volume panel control module 77, and it then passes the signal along to the remaining panel control module 77 of series connection.That is, the first volume obtains signal and this signal is delivered to second volume from computing machine, and second batches the position of this signal and it is delivered to the 3rd volume 3, and the rest may be inferred.
Under initialize mode, panel control module 77 is contacted to each pipe (elongated member) control module 121 successively via numeric string line 2.By this line, panel control module 77 can and then enter transmission with the process section of foundation of finishing initialization process or the size of panel by sequence starting, address initialization." handling and transmit (process and pass) " technology on this kind string line also can be avoided the long transmission line problem and help error-checking.Panel control module 121 also is connected in the parallel bus mode and transports modulated addressing and set up the pipe of data.When the state by string line came the pipe of gating to start, data were transferred into pipe.
Under mode of operation, data are sent to the tube controller on modulation bus and control by the combination of addressing and circulation sequential from paragraph controller.
Each second pipe includes tube controller, its also connect and control one or more usually directly under being responsible for from pipe.Management and control system logic by each pipe with and the pulse-length modulation in manage of being associated fetch data and control the shading value of LED.Handle and display video by this kind mode screen.
The sequence number that panel control module 77 uses digital line 2 to set the address and be responsible for control module 121.Each is responsible for control module 121 then to use 1 addressing of QAM line, and sends line data and error algorithms sign indicating number subsequently one by one.If it is wrong that this algorithm shows in the transmission, the main control unit 121 of then going is request msg once more, and panel controller 77 will send by the QAM line once more.In case main control unit 121 successfully reads, perhaps reached predetermined repeating transmission number of times, then main control unit 121 returns " upwards transfer mode (pass up mode) " and receives and regenerate signal with panel controller 77 ground of the main control unit below it 121 above it.Panel controller proceeds to next main row.
The output of main row control module 121 is by shift register 3 regularly and then be latched upgrading the bit stream of LED 51, and different bit streams is timed to from row 80 and is latched once more to upgrade from LED 51 from microprocessor 77.Use the long pulse sequence of a string n position, realized the width modulation processing of the brightness of n LED 51 of independent control from the parallel data of shift register 3 outputs.
In case power on, pipe main control unit 121 all enters initial phase, and it waits for enable signal in this stage.Panel control module 77 activates the first pipe main control unit 121 by send signal on serial link 2, and this signal is received by first pipe.The first management and control system unit 121 that is activated now receives instruction via the modulation signal line 1 that has the addressing details from panel control module 77.Under this first kind of situation, pipe main control unit 77 receives 1 to n pixel, and wherein n is the pixel count in the master and slave pipe 80.
The first management and control system unit 121 of finishing the addressing program leaves the transfer mode (pass through mode) of initialize mode to the serial data line.The next addressing instruction that receives from panel control module 121 down is passed to the next pipe main control unit 121 (second pipe) that is in initialize mode by serial data line 2.This process repeats to be initialised up to the control module 121 of end of volume (EOV) place.When this controller enters transfer mode, the next initialization meeting that does not have controller is returned mistake or controller is suspended on modulation lines.
By this mode, panel control module 77 (turning controller) has been set up the length of volume and pixel has been located therein, and programming pipe main control unit 121 is to receive its applicable data simultaneously.In this kind method, pipe is general and uses general standby pipes to carry out the replacement of pipe.
The panel control module 77 of form has detuner 77A shown in figure 32, is used for the digital video signal that receives through demodulation from digital visual interface 73.Processor 77B handles the DVI signal received and whole the refreshing of temporary storage 77C stored, for coding with make up shading value and the coded signal that is used for main control unit 121 or line control unit.Processor 77B then calculates address signal and video control signal to line control unit 121.Video control signal then carries out digital-to-analog conversion at 77D to be handled, and then modulates (orthogonal modulation QAM) and amplification at 77E and 77F respectively before being sent to line control unit 121.The numeric string line link that has voltage drive signals at 77G is by line control unit 121, and modulated QAM signal of while also connects.This kind dual link guarantees that line control unit can distinguish, and can also communicate by letter with line control unit after string line interrupts simultaneously.During operation, row and controller interact to set up its position by initialization sequence.
With reference to Figure 33, line control unit 121 has qam demodulator 121A and analog to digital converter 121B, is used to separate the QAM signal of mediation conversion from panel controller 77.Then handled and before being delivered to LED, still be retained in the impact damper 121D through the conversion QAM signal by order by processor 121C.
The work of signal hierarchy is divided into two zones:
1. initialization
Carry out initialization to give relative, an interim address in each line control unit 121 array.Need this to be because do not provide non-volatile unique ROM address to element.When powering on, when asking and at the interval of appointment, carry out initialization to guarantee synchronously.
2. refresh continuously
Different with initialize mode, all line control units 121 have been stored its temporary address a period of time and have only been paid close attention to refresh display now in this case.
First process of panel controller 77 was beginning initialization sequences when display powered on.Initialized target is with the address and repeats the RAM that numbering is come " flash memory (flash) " each line control unit 121.This address comprises 6 bits, (single 64-QAM code element), however because this address of number of the line control unit that is connected is not unique.Therefore repeat to be configured to only after observing correct multiplicity, check address wire, repeat to number combination with the address and be the component that access line controller uniquely only needs.
Color information, address and interruption code are shared the modulation signal line.In order to distinguish color information and address, will in one specific period, use " clock synchronization " method to recognize the address.In order to interrupt line control unit, interrupt address will be retained.Such as:
Because " clock synchronization " 50 methods make 000000B impossible;
111111B signaling gross error;
The 101010B signaling begins initialization.
Because the Signalling method of designed array, if therefore next incoming frame and front identical then need not to send data, thereby do not damage the synchronous of display at all.Use its " flicker " of reducing static advertising, however can also be used as user function, the not static demonstration on display to allow selection between different hardware inlet flows.
Next be to instruct the initialization process that is proposed step by step, so that address and timing value (timer value) to be provided to each line control unit.Figure 34 to Figure 41 demonstrates the pattern of state and first group of three line control unit 121 of link.
Step 0: beginning initialization (Figure 34)
In order to begin initialization, panel controller 77 uses the code (I0 I1 I2 I3I4 I5, I represents initialization) that is kept to activate the initialize mode in the line control unit 121 on modulation lines.Code will remained valid in a minimum special time period that is denoted as Iw (width of initialization pulse) on the modulation lines, not enter init state during identical code to guarantee processor in receiving color information.Under this kind pattern, all three-state buffers of resetting are to observe direct serial input in the above.Figure 35 has shown state and the Link State at this instantaneous line control unit 121, panel controller 77.
Step 1: for controller A (Figure 35)
Panel controller uses " clock synchronization " and is the controller A configuration address on the modulation lines for high serial link.Receiving the high line control unit A of serial checks modulation lines and stores this address.Panel controller transmission afterwards contains the 256QAM code element of color information in the Aw cycle (width of address pulse).This will take place three times with the Aw pulse of identical data, address and 256 code elements of data.This is " actual refreshing ", console controller all row in the initialization array one by one wherein, and each row is to the row counting of the same address that occurs in array between the activation signal simultaneously.
Step 2: for controller A (Figure 36)
As long as one sends first data symbols, it is low that panel controller just will keep serial link.Line control unit receive this low and change its three-state buffer with output.After for low a period of time, the three-state buffer on first serial link all will be changed.
Step 3: for controller A (Figure 37)
In case the data of receiving will be returned height to panel controller from line control unit A, sending the signal that it has successfully received data to panel controller, and this panel controller can proceed to back delegation now.Panel controller is set the address for line control unit B, and line control unit A begins to check modulation lines for the row of same address.
Step 1: for controller B (Figure 38)
Of short duration be height after, line control unit A sends low and sends high to line control unit B to the turning controller.Time-delay between the ground of controller change address, turning and the height of next line control unit guarantees that this address is effective for next line control unit.
Step 2: for controller B (Figure 39)
One receives rising edge from line control unit A, and line control unit B promptly checks modulation lines, memory address and starts internal timer.Line control unit A will transmit ' low ' to line control unit B, the counter-rotating of signaling three-state buffer, however having received its all data up to line control unit B, Gao Caihui is back to panel controller.
Step 3: for controller B (Figure 40)
When line control unit A reset its three-state buffer, it linked to each other the input of following controller effectively with the output of top controller.Line control unit enters " transmission " pattern.Notice that in Figure 41, the height that is transferred to panel controller shows that it is activated by line control unit B and is transmitted by line control unit A.This will be that second of receiving of panel controller is high, and it shows that two row are correctly connected and addressing.
Step 1: for controller C (Figure 41)
Line control unit B sends low to main frame, and sends rising edge to controller C, also checks the modulation lines of identical address now.As other controller work, line control unit C checks modulation lines and memory address.
Subsequent step
When line control unit was activated, line control unit was from the pulse of array transmission line control unit, and panel and console controller will continue to receive the pulse of returning from line control unit A.By this mode, how many row countings panel or turning controller can definitely to connecting, and this number is compared with default before line number, and this default line number is definite via the dip switch on the controller of turning (dip switch) before activating.Marked difference shows failure between the line number of the line number of expectation and counting gained.The turning controller will be reported this mistake, and make the array outage with the protection controller when being short-circuited.If responded correct line number, and console controller is no longer from the array received pulse, and then console controller will use initialization pulse (I0 I1 I2 I3 I4 I5) in " clock synchronization " to come half initialization sequence after the signaling.One receives initialization pulse, and line control unit just is inverted to three-state buffer downward pattern, and waits for from top line control unit and activating.In a single day line control unit is supplied to the address promptly to modulating the repeating signal of its address of ray examination.When finding to repeat, need not activation signal can use, and counter increases 1.
When string line was activated, the address became effectively, and count value is stored in storer.
Count value is represented the number of repeat to address (RA) in the array.This value will show before the modulation lines reading of data how many addresses this line control unit should ignore based on existing how many row to change.
Required number of addresses that " address and repetition (address and the duplicate) " technology of being somebody's turn to do is minimized is stored any information about line position in the array before need not.That is, can place arbitrary physical line in any position in array, and need not addressing in advance.This has realized the processing requirements of all row.
Refresh continuously
After second initialization pulse and second enabling signal from before line control unit, each three-state buffer, address and count value are all correctly set with beginning to be refreshed immediately.Yet this need not to begin immediately.As long as the data that the turning controller provides during initialization will be must be with regard to retainable sales promotion/diagnostic image.In case frame has been buffered to the turning controller and has been treated to the lightness of LED, on the modulation lines first address will be set, be 256 * 2 data symbols (be used for main row and from row) then.After data, will be " verification and ", a kind of common error-detecting algorithm, wherein line control unit will compare received data verification and, and determine whether this transmission accurate.
If transmission is accurately, then making string line by line control unit is long time of high impulse, thereby to the success of turning controller signaling.If these data are destroyed, then will transmit a kind of pattern with request msg once more.Under this kind situation, the turning controller will all be retransmitted address and data.
The next line of repeat to address (RA) will can not respond the serial data of repeating transmission because default timeout value will guarantee identical address after, to occur immediately the time address by twice of calculating.
For each repetition that does not comprise the observed repeating transmission of row, it reduces the count value of its repetition.In case reach zero, be data obviously after the next identical address on the modulation lines at this row.In case the data of receiving, counter are recovered its value and line control unit echo check modulation lines, be the zero next time up to count value, that is, next time is when refreshing.
Each row is carried out this task sequence, mutual offset address and repeat count values, and it is effective that this has guaranteed at any time have only delegation.
The agreement characteristics
Signal is propagated employed agreement and some advantages is provided for diagnosis and signal reduction in array.
Signal
In case the turning controller is found next frame identical with before, it can interrupt data transmission by stopping on the modulation lines transport address.Unless observe the repeat to address (RA), otherwise count value can not successively decrease, so screen will keep current shown image successfully to be transmitted up to next frame.The asynchronism that shows mean refresh rate can dynamic change to adapt to input.Refresh rate is low more, and then the data speed of modulation signal is slow more, and transmission is reliable more.
Failure Mode
In case any line control unit failure, turning controller will continue as the desired data of row transmission, so that the identical row in other address keeps synchronously.The turning controller can be attempted once more the initialization display attempting reconnecting the row of disappearance, otherwise display will continue non-fault.This shows that little connectivity problem can proportionately influence display work.
Suppose the response that at last will make " success " or " failure " of each row in each data stream, the turning controller can report exactly when which fails.If serial link is failed, then the turning controller will be given tacit consent to every group of data of transmission three times.
The data of last n frame then show the fault of modulating link if row fails correctly to receive.Disconnection completely on several link failures or the signal cable is will be fully isolated with delegation or a few row and turning controller.Disconnect following being about to and no longer continue to upgrade, but refreshing before continuing to show.Can take the possible measure such as load measure to determine whether modular cable is disconnected.Signaling protocol is not enough to diagnose exactly the fault of modulation link.
The safety outage
After short of electricity, can't determine the state of display reliably.For this reason, in case power on, display will always begin initialization sequence so that the state of screen and all line control units of resetting correctly to be set.Import by the DVI that is disconnected to screen and to carry out safe outage.This will force and show static promotion chart picture on the display, unless and reconnect, the turning controller will no longer include input.,, therefore can cut off the power supply safely in the period at this section because row decoder is incited somebody to action not deal with data.
Although above providing illustrative examples of the present invention, will be conspicuous for many variations of those of ordinary skill in the art and modification, and not deviate from of the present invention wide in range boundary and the scope of being set forth as in claims subsequently.
Claims (43)
1. large scale display system that is used for display image, described system comprises: the display screen that is made of one or more display panels, described one or each described display panel have the display segment that at least one is made of separated elongated member, each elongated member has the conduction carrier that is supported on wherein, and being installed in separated controllable pixel unit on the described conduction carrier, the pixel cell in the elongated member is arranged to form picture element matrix; Arrange along edge of display screen or, be used for electricity and/or video data signal are sent to described carrier along the bus parts that described or each described display panel or each opposite edges are arranged; The bus parts of described one or each described display screen or panel are communicated by letter with the panel control module, described panel control module is configured to supply described electricity and/or video data signal to the bus parts of described or each panel/section, with controllably to its described pixel cell power supply, thereby the brightness of control pixel.
2. system according to claim 1 is characterized in that each elongated member has video control unit, and described video control unit is configured to controllably power to described pixel cell wherein in response to video data signal.
3. system according to claim 1, it is characterized in that, described elongated member is aligned at least one group of elongated member that is connected, and one in one group or every group elongated member that is connected has video control unit, described video control unit is configured in response to video data signal, controllably the described pixel cell power supply in the elongated member that is connected.
4. according to any described system in the claim 1 to 3, it is characterized in that, described panel control module is configured to from the video source receiving video signals, and converts the vision signal that is received to modulated video data signal to be sent to the bus parts.
5. system according to claim 4 is characterized in that described video data signal is superimposed in the power supply of pixel cell.
6. according to any described system in the claim 1 to 5, it is characterized in that, described panel control module has apparatus for initializing, and it is used for the interior video control unit of initialization elongated member with response and the corresponding video data signal in address that is assigned to elongated member.
7. system according to claim 6 is characterized in that, described apparatus for initializing is configured to determine screen or panel pixels size according to the address of being assigned.
8. according to any described system in the claim 1 to 7, it is characterized in that, also comprise the suspender that is used for hanging in vertical or horizontal space direction described elongated member, described suspender has one or more and/or one or more suspension line in the described bus parts that extend along the described display panel of described or each.
9. system according to claim 8 is characterized in that, described bus parts/suspension line is pliable and tough relatively so that described display panel is collapsible or curling.
10. according to Claim 8 or 9 described systems, it is characterized in that, described elongated member is suitable for moving rotationally, and comprise be used to drive the controlled drive unit that described elongated member moves rotationally between both direction, one of them direction is used to watch the brightness by LED to form image, and second direction is used to watch the static information that forms on elongated member.
11. any described system in 10 according to Claim 8, it is characterized in that, each described bus parts and/or each described suspension line are associated with a plurality of retention clip, and each retention clip wherein is configured to clamping and is contained in wherein elongated member.
12. system according to claim 11 is characterized in that, described retention clip is configured to move rotationally, thereby optionally locatees the direction of described elongated member.
13., it is characterized in that described display screen is formed by two or more described display panels side by side according to any described system in the claim 1 to 12, and the adjacent display segment of display panel is configured to and can interconnects side by side.
14. system according to claim 13, it is characterized in that, described elongated member is configured or is provided with end flange, described end flange by moulding one-tenth make each elongated member in the display panel an end can with the abutting end interconnection of respective elongated parts in the adjacent display panel.
15. system according to claim 13 is characterized in that, also comprises coupling unit, each coupling unit be suitable for interconnecting adjacent end portion of corresponding tubular part in the display panel arranged side by side.
16., it is characterized in that the conduction carrier in each elongated member is formed by the flexibility or rigidity material according to any described system in the claim 1 to 15.
17. system according to claim 16 is characterized in that, described conduction carrier is formed has the circuit board that one or more is used for the control circuit module of respective pixel unit.
18. system according to claim 16 is characterized in that, described bus parts are configured to transport control signal, so that the control circuit module on the coupled conduction carrier can be according to the brightness of described control signal control LED.
19. according to claim 17 or 18 described systems, it is characterized in that, described bus parts are configured to transport the alternating-current power supply of the control signal that is marked with pixel cell, and described control circuit module is configured to convert alternating-current power supply to dc power supply, for pixel cell to LED power supply and filtering control signal to control the brightness of LED.
20., it is characterized in that also comprise heat-transfer device, described heat-transfer device is suitable for heat is reached its outside from the conduction carrier in each elongated member according to any described system in the claim 1 to 19.
21. system according to claim 20, it is characterized in that, described heat-transfer device has the heat dissipation element that is fixed to each elongated member, and one or more is fixed to elongated member that is associated and the retaining element that heat is reached heat dissipation element from described conduction carrier by being suitable for of making of Heat Conduction Material with described heat dissipation element.
22. according to any described system in the claim 1 to 21, it is characterized in that, each elongated member can be formed to have along the cavity of its extension and by substrate, rear wall, unlimited antetheca or the antetheca and the top of substantially transparent and surround, described conduction carrier is installed in the described cavity, and pixel cell is configured to make LED towards the described unlimited antetheca or the antetheca of substantially transparent.
23. system according to claim 22 is characterized in that, described pixel cell is configured to make LED to leave described unlimited antetheca or antetheca one segment distance of substantially transparent directly is mapped on the LED with restriction sunlight.
24. system according to claim 22 is characterized in that, each elongated member all has the sunshading board of the LED covering that is suitable in the described cavity.
25., it is characterized in that the top of each elongated member has and is configured to removable and has the top board of a part of static printing information according to any described system in the claim 22 to 24.
26. system according to claim 25 is characterized in that, the top of each elongated member is formed with relative groove, to hold its top board movably.
27. according to any described system in the claim 1 to 26, it is characterized in that, also comprise arrangements of electric connection, it has that separating turns up the soil fixes the electric coupler component of or each bus parts and described connector assembly and is suitable for connecting respective conductive carrier in the elongated member.
28. system according to claim 27 is characterized in that, described connector assembly is the insulating puncturing type, and it has the conductor element that is configured to penetrate around the insulation course of bus parts.
29. system according to claim 28 is characterized in that, described bus parts are the flat insulating cables that wherein have the electric wire group, and described conductor element is suitable for connecting described electric wire group when insulation course is penetrated.
30., it is characterized in that described one or each described display panel have a plurality of display segments that are arranged in array according to any described system in the claim 1 to 29, and the machinery and/or be electrically connected each other of the adjacent display segment in the described array.
31. according to any described system in the claim 1 to 30, it is characterized in that described display screen has end face, bottom surface and relative side, and described bus parts are arranged along a side of end face or bottom surface or opposite flank.
32. according to any described system in the claim 1 to 31, it is characterized in that, also comprise the decoding device that is used for the control signal of pixel is decoded as decoded signal, and described decoding device is configured to provide the described brightness of decoded signal with the control pixel.
33. system according to claim 32 is characterized in that, described decoding device comprises the demoder that is used for each elongated member.
34., it is characterized in that each pixel cell has the controllable leds (LED) of one or more monochromes or polychrome according to any described system in the claim 1 to 33.
35. system according to claim 34, it is characterized in that, each described pixel cell has red LED, green LED and blue LED, and processing unit is configured to produce control signal, and described control signal can be controlled LED in the pixel cell and produce brightness in the almost whole spectral range.
36. according to any described system in the claim 1 to 35, it is characterized in that, also comprise the limit pendulum device that is used to limit described display screen swing.
37. system according to claim 36 is characterized in that, described limit pendulum device has a plurality of separated removable fasteners that are used for display screen is fastened to supporting construction.
38. according to any described system in the claim 1 to 37, it is characterized in that, also be included in the bracing or strutting arrangement of the described display screen of supporting construction upper support, described bracing or strutting arrangement comprises a pack support, and described support is configured to be removably fixed to or the top of each display panel not folding or that do not curl of supporting construction and supporting display screen.
39. according to the described system of claim 38, it is characterized in that, one or each display panel make its top board be fixed to roller, and described bracing or strutting arrangement has the coupling shaft that extends through described roller, described coupling shaft is configured to rotate described roller, so that display panel is recovered on the described roller for storage or transportation, and stretch in use.
40., it is characterized in that drive unit is associated with described coupling shaft so that described roller turn according to the described system of claim 39, and described drive unit has and is coupled to drive the controllable motor of described coupling shaft.
41., it is characterized in that the end face of display screen, bottom surface and relative side are by the moulding concrete shape that becomes to meet supporting construction according to any described system in the claim 1 to 40.
42. according to any described system in the claim 1 to 42, it is characterized in that, pixel cell be set to form from about 25 millimeters to about 100 millimeters pel spacing, described spacing based on the expectation viewing distance and decide.
43. large scale display system that is used for display image, described system comprises: the display screen that is made of one or more collapsible display panels that maybe can curl, described one or each described display panel have the display segment that at least one is formed by the cross-wire of the matrix that is arranged to row and column, and separated pixel cell is supported by one or more electric wires in the described row or column, perhaps supported along the Support Level that the described display panel of described or each extends by one or more, and the separated pixel cell pixel that is configured to controllably power; The bus parts of arranging along edge of display screen or arranging along an edge of described or each described display panel are used for electricity and/or control signal are sent to described electric wire; And be the panel control module that the described display panel of or each is provided with, described panel control module is configured to the brightness of described bus parts supply control signal with the control pixel, described panel control module is configured to from the video source receiving video signals, and convert the vision signal that is received to modulated video data signal being sent to the bus parts, described panel control module has and is used for the initialization pixel cell with the apparatus for initializing of response with the appropriate address response video data signal that is assigned to pixel cell.
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| AU2005905344 | 2005-09-28 | ||
| AU2005905344A AU2005905344A0 (en) | 2005-09-28 | A large scale display system | |
| AU2006901956 | 2006-04-13 |
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| CN101317206A true CN101317206A (en) | 2008-12-03 |
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