CN101673493B - LED display system - Google Patents
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- CN101673493B CN101673493B CN200910091004.4A CN200910091004A CN101673493B CN 101673493 B CN101673493 B CN 101673493B CN 200910091004 A CN200910091004 A CN 200910091004A CN 101673493 B CN101673493 B CN 101673493B
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- 238000004020 luminiscence type Methods 0.000 claims description 57
- 238000002955 isolation Methods 0.000 claims description 26
- 238000009434 installation Methods 0.000 claims description 21
- 230000000694 effects Effects 0.000 abstract description 11
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 10
- 230000000007 visual effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- 230000003447 ipsilateral effect Effects 0.000 description 1
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Abstract
The invention discloses an LED display system which comprises an LED module, a master control device and a slave control device, wherein the LED module comprises at least two mounting bars, a plurality of LED luminous units, a control module of the LED luminous units, a power line, at least one master signal wire and at least one slave signal wire; the master control device is connected with the master signal wire and used for generating a master control signal; the slave control device is connected with the slave signal wire and used for generating a slave control signal; the control module is provided with a plurality of function modules which are used for detecting whether the master control signal is right, judging whether the master signal wire has fault, insulating the master control signal, replacing the master control signal by the slave control signal as well as driving and controlling the LED luminous units; and distance among the LED luminous units is set to be at least 5 cm. The LED display system has high transparency, good heat dissipation effect, strong wind resistance, convenient and flexible assembly and disassembly, better selectivity and high stability.
Description
Technical field
The present invention relates to a kind of LED light device, particularly, relate to a kind of LED display system.
Background technology
LED is high with luminescence efficiency, long service life, feature that is safe and reliable and environmental protection and energy saving are paid attention to widely.LED display is as a kind of important means of Information Communication, become the mark of urban information modernization construction, along with socioeconomic continuous progress, and LED display technique is constantly perfect, people will more and more go deep into the understanding of LED display, and its application will be more and more wider.
In prior art, LED display is generally in lighttight slab construction, a pixel is formed by light emitting diode and LED, each pixel at certain intervals matrix rearranges the cell board with pattern, Word message, controlled by control device, thus demonstrate the pictures such as coloury video, picture, word.Because the light emitting pixel of display screen is all arranged in lighttight planar structure, display screen is restricted in the application of some occasion and maybe can not have given play to better effect.Such as or interior installation large-area conventional LED display outer at glass of building curtain wall can have a strong impact on the visual range of personnel in interior of building daylighting and building, or impact is by the visual range of buildings externally to interior viewing, and, because large LED screen body has, components and parts are many, line is many, power supply is many, circuit is complicated, the feature that components and parts are numerous, is difficult to ensure in use not go wrong, poor selectivity, further, stability is also lower.
Or, also LED display LED display being set to transmission is had, substantially improve the transparency and the thermal diffusivity of light tight slab construction, but the spacing of each pixel of LED display is still by traditional setting, therefore, make the transparency of LED display still not high enough, still affect the partial visual scope of personnel in buildings, further, be difficult to bear the huge temperature difference and strong wind.
Therefore, prior art existing defects, needs to improve.
Summary of the invention
Technical matters to be solved by this invention is, provides that a kind of transparency is high, good heat dissipation effect, wind resistance are strong, easy installation and removal is flexible, and, the LED display system that selectivity is strong and stability is high.
Technical scheme of the present invention is as follows: a kind of LED display system, wherein, comprises at least one LED module, a main control unit and at least one from control device; Described LED module comprises at least two mounting bars, some LED luminescence units and control module thereof, power lead, at least one main signal line and at least one from signal wire; Described main control unit is connected with described main signal line, for generation of main control signal, i.e. and the main control signal of each LED, in other words, main LED control signal; Describedly to be connected from signal wire from control device with described, for generation of from control signal, namely each LED from control signal, in other words, from LED control signal; Described control module arranges some functional modules, comprises fault detect submodule, fault isolation submodule and control signal and changes submodule; Whether described fault detect submodule is connected with each signal wire, described fault isolation submodule respectively, correct for detecting main control signal, notifies described fault isolation submodule; Described fault isolation submodule is also changed submodule with described control signal and is connected, and for when described main control signal is incorrect, judges that described main signal line breaks down, isolates described main control signal, notifies that described control signal changes submodule; Described control signal changes submodule, described from control signal for being replaced by by described main control signal, and according to described from control signal, each LED luminescence unit of drived control; Described main control signal is identical or different from control signal with described; Spacing between each LED luminescence unit is set at least 5 centimetres.
Described LED display system, wherein, the end of arbitrary mounting bar is provided with connecting portion, at least comprises power lead connecting portion, main signal line connecting portion and from signal wire connecting portion.
Described LED display system, wherein, each connecting portion is set to connecting male or connects female seat.
Described LED display system, wherein, described fault detect submodule is also connected with a fault data output line road, for exporting fault data.
Described LED display system, wherein, described main control unit or described from control device, also arranges a state display module, for receiving fault data, according to described fault data, calculating and showing abort situation.
Described LED display system, wherein, each mounting bar is parallel to each other or mutually vertical; In each mounting bar be parallel to each other, the spacing between adjacent two mounting bars, equals the spacing between other adjacent two mounting bars; Wherein, described spacing is 5 centimetres to 500 centimetres, or is 10 centimetres to 300 centimetres or is 20 centimetres to 200 centimetres or is 30 centimetres to 100 centimetres or is 40 centimetres to 80 centimetres or is 50 centimetres to 70 centimetres.
Described LED display system, wherein, the spacing between each LED luminescence unit is set to arbitrary numerical value of following numerical value set, and its unit is centimetre; Described set of values is combined into 5,8,9,10,12,15,18,20,23,24,25,30,33,36,40,43,45,49,55,60,64,70,72,75,80,81,82,90,99,111,125,138,149,167,186,200,225,256,268,292,303,337,339,353,369,382,406,433,442,451,460,499,500,600,800,900,999,1200.
Described LED display system, wherein, comprises a main signal line and three from signal wire; Respectively be used for transmitting first respectively from control signal, second from control signal and the 3rd from control signal from signal wire; Described fault detect submodule, also respectively whether correct from control signal for detecting, and notify described fault isolation submodule; Further, described fault isolation submodule, also for when respectively breaking down from signal wire, isolation is each from control signal; Described control signal changes submodule, is also described second from control signal for changing described first from control signal, or, be the described 3rd from control signal for changing described second from control signal; Such as, in each signal wire, any two signal wires be arranged in parallel, and, with the perpendicular setting of other two signal wires.
Described LED display system, wherein, also arranges at least one identify unit, for identifying the performance parameter of each described LED module; Wherein, described identify unit is paper labels or plastic label; Or be that there is the bar code designed according to each performance parameter.
Described LED display system, wherein, also arranges an adjusting gear, and described adjusting gear is connected with each LED luminescence unit, for adjusting brightness or the chromaticity coordinates of each LED luminescence unit, to obtain identical or close color development area.
Adopt such scheme, the present invention is 5 centimetres by being minimum by the distance between each LED luminescence unit, spacing then between each mounting bar can be set to larger than traditional transmission LED display more than 10 times, there is high transparent, and extraordinary thermal diffusivity and wind resistance, can bear the huge cold and hot temperature difference and strong wind, not affect the visual range of personnel in building completely, energy consumption is also lower; Further, mounting bar can be adopted to install, make to carry out installation and deployment in the buildings of various shape, easy installation and removal is flexible.Further, by establishing main control unit to produce main control signal, and arrange from control device generation from control signal, can select main control signal, also can select to show from control signal, display selectivity is strong; And, by arranging each functional module in described control module, signal line whether fault is judged by each functional module, and, isolation out of order signal circuit, makes, when main signal line failure, can replace main signal circuit from signal line, work on, stability is very high.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of embodiment 1 in the present invention;
Fig. 2 is the schematic diagram of embodiment 2 in the present invention;
Fig. 3 is the schematic diagram of embodiment 3 in the present invention;
Fig. 4 is the schematic diagram of embodiment 4 in the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
As shown in Figure 1, present embodiments provide a kind of LED display system, described LED information display system comprises one or more LED module, a main control unit and one or more from control device.
Such as, described LED module comprises two or more pieces mounting bar, some LED luminescence units and control module thereof, power lead, one or more main signal line and one or more from signal wire.Wherein, each LED luminescence unit is fixed on each mounting bar, and, each LED luminescence unit can be lattice arrangement, thus form a LED module, namely one or more LED module can form the LED display of difformity and different size, and each LED display may be used for showing various video information.
Described power lead can comprise one or more positive source line and one or more power-polar curve, each positive source line is connected with power supply, for transmitting electric energy, for described LED module provides voltage, and, loop is formed, to realize the parallel electrical connection of each LED luminescence unit with each power cathode line.Or, power lead also can comprise one or more power supply line and one or more ground wire, each power supply line provides voltage for described LED module, and each ground wire is for importing the earth, the infringement caused to prevent excess charge by electric charge unnecessary on described LED module.
Each main signal line and each from signal wire all for transmitting LED control signal, wherein, described main signal line is connected with described main control unit, the video file content that described main control unit shows as required, produce main LED control signal, and pass to each control module of each LED luminescence unit by described main signal line; And, describedly to be connected from control device from signal wire with described, described from control device according to same video file content or another video file content, to produce from LED control signal, and by the described each control module passing to each LED luminescence unit from signal wire; Each control module of each LED luminescence unit is according to each main LED control signal or respectively from LED control signal, the each LED luminescence unit of drived control, make each LED luminescence unit according to each main LED control signal or respectively from LED control signal, display needs the various videos of display.
The control module of each LED luminescence unit is provided with each functional module, changes submodule comprising fault detect submodule, fault isolation submodule and LED control signal; Described fault detect submodule, respectively with each main signal line be respectively connected from the input end of signal wire, described main signal line and described from signal all for transmitting LED control signal, wherein, described main signal line is for transmitting main LED control signal, described from signal wire be used for transmission from LED control signal, described main LED control signal controls can be identical from LED with described, also can be difference; Described main LED control signal and described from LED control signal, being the LED control signal for controlling each LED light emitting diode, may be used for making each LED diode displaying figure, word, letter and animation etc.
Described fault isolation submodule is connected with described fault detect submodule, and described LED control signal is changed submodule and is connected with described fault isolation submodule.
Whether described fault detect submodule is correct for the LED control signal detecting the input of described main signal line, and the result of detection is passed to described fault isolation submodule, if when described main LED control signal is correct, then described main LED control signal is through described fault detect submodule, be delivered to described fault isolation submodule, be delivered to after described LED control signal replacing submodule through described fault isolation submodule again, be used further to control each LED light emitting diode, described main LED control signal may be used for Direct driver and controls each LED light emitting diode, namely described control module is directly connected with each LED light emitting diode, or, described main LED control signal can each LED light emitting diode of drived control indirectly, namely described control module is connected with other driver module, as, be connected with constant-current driven module or constant voltage driver module, other driver modules are connected with each LED light emitting diode again, described control module carrys out each LED light emitting diode of drived control by controlling other driver modules.
When described fault detect submodule detects that described main LED control signal is incorrect, described fault isolation submodule then judges that described main signal line is as breaking down, further, isolate described main LED control signal, make the main LED control signal broken down stop transmission; Further, described LED control signal is changed submodule and described main LED control signal is replaced by described from LED control signal, and according to described from LED control signal, carrys out each LED light emitting diode of drived control.
The mounting bar of each LED luminescence unit is installed, can be interfixed by stationary installation, thus composition one LED module, also directly can install on medium by each mounting bar is fixed on, form a LED module, thus as a LED display.As, each mounting bar can be PCB bar or bonding jumper, plastic strip etc.; And for example, installing medium can be installation fixed frame, installation crossbeam, construction wall, installation plate etc., fixing by being installed by each mounting bar, thus forms the firm LED display of an installation.By directly fixing each mounting bar, can ensure that the display screen that described LED module is formed is disposed in the buildings of various shape, flexibly easy for installation.
Minor increment between each LED luminescence unit is 5 centimetres, namely the distance between adjacent two LED luminescence units is minimum is 5 centimetres, such as, for arbitrary numerical value of following numerical value set, its unit is centimetre: 5, 8, 9, 10, 12, 15, 18, 20, 23, 24, 25, 30, 33, 36, 40, 43, 45, 49, 55, 60, 64, 70, 72, 75, 80, 81, 82, 90, 99, 111, 125, 138, 149, 167, 186, 200, 225, 256, 268, 292, 303, 337, 339, 353, 369, 382, 406, 433, 442, 451, 460, 499, 500, 600, 800, 900, 999, 1200.
Due to common LED display screen LED luminescence unit between dot spacing, be generally all set to P5 to P25, namely 0.5 centimetre to 2.5 centimetres, therefore, in the transmission screen made, the maximum spacing between adjacent mounting bar is 2.5 centimetres, is arranged on the exterior wall of building, easily shelter from the partial visual field of people in building, make the transparency of LED display can not meet the requirement of vision, and, because the spacing between mounting bar is too small, radiating effect is also good not, is difficult to bear the huge temperature difference and hurricane.
The minor increment of each LED luminescence unit is set to be 5 centimetres by the present embodiment, and adopt each mounting bar to install, the minimum space with 5 cm x 5 centimetres=25 square centimeters between each LED luminescence unit, while enough meeting the vision needs of people, can reduce the energy consumption of the display screen be made up of LED module, and, spacing between each LED luminescence unit is larger, then the spacing between mounting bar can arrange larger, therefore, good heat dissipation effect, can bear the larger temperature difference; Further, the sparse form adopting permeability strong is installed, and contributes to the steadiness increasing the installation of LED luminescence unit, and even can resist high wind hurricane.
Embodiment 2
As shown in Figure 2, on the basis of above-mentioned each example, at each mounting bar, some LED luminescence units 201 are all installed, the end of arbitrary mounting bar 202 is provided with connecting portion 203, wherein, described connecting portion 203 can be arranged on any one end setting of mounting bar 202, also can be arranged on two ends of mounting bar 202, and described connecting portion 203 is for the connection between two mounting bars.Such as, connecting portion 203 comprises power lead connecting portion, main signal line connecting portion and from signal wire connecting portion, wherein, power lead connecting portion can comprise positive source connecting portion and power-polar curve connecting portion, for respectively with the positive source line on adjacent mounting bar and the corresponding electrical connection of power-polar curve, described main signal line connecting portion for connecting with signal with the main signal line on adjacent mounting bar, described from signal wire connecting portion for connecting with signal from signal wire adjacent mounting bar.
Wherein, each connecting portion that arbitrary mounting bar is arranged, connecting portion that can be directly corresponding with on adjacent mounting bar is fixedly connected; Or, also by being fixedly connected with a linkage unit 204, then can be fixedly connected by connecting portion suitable on this linkage unit 204 and adjacent mounting bar.
Such as, one end of mounting bar A is provided with connecting portion a, one end of mounting bar B is provided with connecting portion b, wherein, the connecting portion a1 that the connecting portion a of mounting bar A and linkage unit X one end are arranged is suitable, further, mounting bar A is fixedly connected by suitable connecting portion a and connecting portion a1 and linkage unit X; The connecting portion b1 that the connecting portion b of mounting bar B and the linkage unit X other end are arranged is suitable, mounting bar B is fixedly connected by suitable connecting portion b and connecting portion b1 and linkage unit X, thus, realize being fixedly connected with between mounting bar A with mounting bar B, said being fixedly connected with comprises fixing electrical connection and is connected with fixed signal.
Such as, each connecting portion can be set to connecting male or connect female seat, the connecting male that arbitrary mounting bar is arranged or connect female seat, the connection female seat arranged with adjacent mounting bar end or connecting male suitable; Or, with the connection female seat that a linkage unit 204 is arranged or connecting male suitable, wherein, linkage unit 204 can be each power circuit and each signal line.
Embodiment 3
On the basis of above-mentioned each example, in the control module of each LED luminescence unit, described fault detect submodule is also connected with a fault data output line road, for exporting fault data.Such as, one fault data output line road is also set in a LED module, described fault data output line road is connected with described fault detect submodule, described fault data output line road is for exporting fault data, namely when described main LED control signal is correct or incorrect time, described fault data circuit correspondence exports the fault data that described main signal circuit is normal or break down, such as, one end, described fault data output line road can be connected with control system, directly fault data is shown by the display interface of external control system, namely like this, can by the fault data exported, can know that each circuit is no to break down, and find the position of breaking down fast, make convenience easy to maintenance.
As shown in Figure 3, on control device 301, be also provided with a state display module 302, described state display module can be LCD display interface or be LED display interface, and, be wholely set with described control device 301, be namely set to an entirety; Wherein, described control device 301 can be described main control unit, or also can be described from control device.
State display module 302 may be used for the duty showing described LED module, such as, is shown as normal operating conditions or the state etc. that quits work; And, can in described state display module 302, arrange fault data receiving interface 303, fault data receiving interface 303 is connected with fault data output line road direction, for receiving the fault data that described fault data output line road is sent back, according to described fault data, calculate the particular location broken down, and show in described state display module 302, intuitive display, further, simple to operate, convenience easy to maintenance.
Embodiment 4
As shown in Figure 4, on the basis of above-mentioned each example, each mounting bar forming described LED module can be parallel to each other, also can be mutually vertical, and such as, mounting bar 401 parallels with mounting bar 402, and mounting bar 403 parallels with mounting bar 404; Mounting bar 401 respectively at mounting bar 403 and mounting bar 404 perpendicular, and, mounting bar 402 also respectively at mounting bar 403 and mounting bar 404 perpendicular.
Further, in each mounting bar, the spacing between adjacent two mounting bars, equals the spacing between other adjacent two mounting bars.
Such as, the spacing of adjacent horizontal mounting bar is set to identical, and the spacing of adjacent perpendicular mounting bar is set to identical, and described installation position is distributed in the intersection of horizontal mounting bar and perpendicular mounting bar; Or installation position is distributed on each horizontal mounting bar.Or installation position is distributed on each perpendicular mounting bar; According to uniform object, show dot matrix to form uniform LED.
Further, the minimum spacing of adjacent two mounting bars is set to 5 centimetres, in addition, also can according to the size of the display screen of LED module composition, the height of building, the parameters such as the visual angle of display screen, select the distance between adjacent two mounting bars.
Therefore, minor increment between each mounting bar is set to 5 centimetres, then at least there is between adjacent mounting bar the space of 5 cm x 5 centimetres=25 square centimeters, while enough meeting the vision needs of people, the energy consumption of the display screen be made up of LED module can be reduced, and, spacing between mounting bar is larger, then the dot spacing be arranged between the LED luminescence unit on each mounting bar is also larger, therefore, good heat dissipation effect, can bear the larger temperature difference; Further, adopt the form of the sparse installation position that permeability is strong, contribute to the steadiness increasing the installation of LED luminescence unit, and even high wind hurricane can be resisted.It should be noted that, the distance between adjacent mounting bar, can be the distance between mounting bar edge, also can be the distance between mounting bar center; Mounting bar center, the i.e. mounting bar of a rectangle or similar rectangle, at the center line of this rectangle, or any point on the class symmedian of similar rectangle; Two center lines of adjacent two mounting bars, parallel or less parallel.
Spacing due to each installation position is minimum is 5 centimetres, relatively traditional 0.5 centimetre to 2.5 centimetres, the dot spacing of each LED luminescence unit increases, and namely in unit area, the quantity of each LED luminescence unit reduces, cost-saving, and, energy consumption reduces, and is meeting each performance parameter being arranged on extra-large LED display screen on high buildings and large mansions exterior wall, and while in building, the vision of people needs, make cost reach minimum, the larger temperature difference and hurricane can be resisted.
Further, the spacing between each mounting bar can be set to equal.Such as, a range of definition is set, comprise following numerical value: 5,8,9,10,12,15,18,20,23,24,25,30,33,36,40,43,45,49,55,60,64,70,72,75,80,81,82,90,99,111,125,138,149,167,186,200,225,256,268,292,303,337,339,353,369,382,406,433,442,451,460,499,500 etc., unit is centimetre.For each mounting bar, the spacing of adjacent mounting bar is a numerical value unit of the above-mentioned range of definition, such as 8 centimetres; Or the spacing of adjacent mounting bar is arbitrary numerical value unit of the above-mentioned range of definition.
Spacing between each mounting bar can be according to actual needs, be set to 5 centimetres, 8 centimetres, 10 centimetres, 15 centimetres, 20 centimetres, 25 centimetres, 30 centimetres, 40 centimetres, 60 centimetres, 80 centimetres, 100 centimetres, 200 centimetres, 400 centimetres, 500 centimetres etc., then can reach same technique effect.
Usually, the spacing between adjacent mounting bar is larger, then transparency is higher, and energy consumption is less, and radiating effect is better, and the ability of bearing the huge temperature difference and hurricane is stronger, and the spacing between general adjacent mounting bar can be set to 500 centimetres.
Such as, the distance between two adjacent installations can be set to 10 centimetres to 300 centimetres.Therefore, then respectively minimum between the installation rule have 10 cm x 10 centimetres=100 square centimeters, the maximum space with 300 cm x 300 centimetres=90,000 square centimeters, between each mounting bar spatial placement more rationalize, make not affecting in the visual range of people, the distance of described LED display reaches and compares optimization.
Further, space between each mounting bar is rationalized more, make in the visual range not affecting people in building, and under the thermal diffusivity not affecting described LED display and hurricane resistant prerequisite, each performance parameter of described LED display is made to reach best, therefore, the distance between two adjacent horizontal mounting bars can be set to 20 centimetres to 200 centimetres or be 30 centimetres to 100 centimetres or be 40 centimetres to 80 centimetres or be 50 centimetres to 70 centimetres; Or the distances between adjacent two perpendicular mounting bars can be set to 20 centimetres to 200 centimetres or be 30 centimetres to 100 centimetres or be 40 centimetres to 80 centimetres or be 50 centimetres to 70 centimetres; Or the distance between the two perpendicular mounting bars that the Distance geometry between adjacent two horizontal mounting bars is adjacent, all can be set to 20 centimetres to 200 centimetres or be 30 centimetres to 100 centimetres or be 40 centimetres to 80 centimetres or be 50 centimetres to 70 centimetres.
Embodiment 5
On the basis of above-mentioned each example, one main signal line and three can also be set from signal wire, as comprised main signal line, first from signal wire, second from signal and the 3rd from signal wire, main signal line is for transmitting main LED control signal, first from signal wire for transmitting first from LED control signal, second from signal for transmitting second from LED control signal, the 3rd from signal wire for transmitting the 3rd from LED control signal.
When described main signal line breaks down, the result of detection also for detecting described first from signal wire, and is passed to described fault isolation submodule by described fault detect submodule; If described first correct from LED control signal time, then described control module carrys out each LED light emitting diode of drived control according to described first from LED control signal; When described fault detect submodule detect described first incorrect from LED control signal time, described fault isolation submodule then judges that described first signal wire is as breaking down, further, isolate described first from LED control signal, make to break down first stops transmission from LED control signal; Further, described LED control signal is changed submodule and is replaced by described second from LED control signal by described first from LED control signal, and according to described second from LED control signal, carrys out each LED light emitting diode of drived control.
When described first breaks down from signal wire, the result of detection also for detecting described second from signal wire, and is passed to described fault isolation submodule by described fault detect submodule; If described second correct from LED control signal time, then described control module carrys out each LED light emitting diode of drived control according to described second from LED control signal; When described fault detect submodule detect described second incorrect from LED control signal time, described fault isolation submodule then judges that described secondary signal line is as breaking down, further, isolate described second from LED control signal, make to break down second stops transmission from LED control signal; Further, described LED control signal is changed submodule and is replaced by the described 3rd from LED control signal by described second from LED control signal, and according to the described 3rd from LED control signal, carrys out each LED light emitting diode of drived control
Wherein, main signal line, first is from signal wire, second from signal and the 3rd from signal wire, and wherein any two signal wires be arranged in parallel, and, with the perpendicular setting of other two signal wires; Such as, main signal line and first be arranged in parallel from signal wire, and, with second from signal and the 3rd from the perpendicular setting of signal wire; And, the transmission direction of the LED control signal that two signal wires arranged in parallel transmit respectively is contrary, i.e. main LED control signal and first contrary from the transmission direction of LED control signal, second is contrary from the transmission direction of LED control signal and the 3rd LED control signal.
So, can make four bars circuits from four of described LED module not ipsilateral be connected with described control module, after making the circuit of arbitrary side or any two sides or any three sides wherein cut-off, described control module is still unaffected, make fault effects reach minimum, ensure that the stability that described LED display shows.
Embodiment 6
On above-mentioned each routine basis, described LED display system also arranges one or more identify unit, for identifying the performance parameter of described LED module.
Each performance parameter of described LED module, can be in each LED luminescence unit, the brightness, wavelength, chromaticity coordinates etc. of each LED light emitting diode can also be the color of each LED light emitting diode, encapsulation, size, the spacing of each LED luminescence unit, and the shape of each LED module, size etc.
When in LED luminescence unit each in described LED module, when same color LED light emitting diode adopts same point of gear selecting or adjacent point of gear selecting, the brightness of same color LED light emitting diode, encapsulation, size are identical, and consistent wavelength, therefore each LED light emitting diode of same color in a LED module, can see a LED light emitting diode as and identify, have accurate performance parameter numerical value, therefore, sign content is simple, convenient.
Each identify unit can adopt the mode embedded or paste to arrange, arbitrary side of described LED module can be arranged on, identify unit is arranged on side, identify unit can be made not take the installation site of each LED light emitting diode and other electronic devices and components, further, the specious of the display surface of described LED module is not affected yet.
And identify unit embedding is arranged on described LED module, identify unit can be made depositing, use, be not easy to come off in the situation such as transport, make, through the described panel of long storage time, use or transport, still clearly to recognize each performance parameter of described LED module.
And for example, identify unit can be a paper labels or plastic label; Use paper labels can make to wait in use very convenient, such as, on the side that directly paper labels can be pasted onto described LED module or side, identification means is simple, and facilitates.And use plastic label that label can be made more durable, be not easy infringement.
In addition, identify unit can also be the bar code of each performance parameter of mark, and like this, the bar code designed because identify unit has each performance parameter according to described LED module, can show each specific performance parameter of described LED module by scanning; Adopt bar code, by data are inputted computer, adopt electronic tool management simultaneously, management is standardized more, make finding, convenient, quick when using each panel of each performance parameter.
Embodiment 7
On the basis of above-mentioned each example, described LED display system, also arranges an adjusting gear, and described adjusting gear is connected with each LED luminescence unit, for adjusting the brightness of a LED light emitting diode in each LED luminescence unit, thus adjust the color development area of each LED luminescence unit.
Described color development area refers in each LED luminescence unit, redness, green and BLUE LED emissions diode are when luminescence, at CIE (French Commission Internationale de L ' Eclairage, English International Commission on Illumination) 1931 chromaticity diagrams (CIE 19312Chromaticity Diagram, also claim chromatic diagram) or CIE1976 even color figure in the region that forms of chromaticity coordinates, i.e. the color development area of each LED luminescence unit.
When the color development area of each LED luminescence unit is identical or close, then the display of the LED module formed, LED display display device is homogeneous, and display effect is very good; Or, when the color development area of each LED luminescence unit is close, wherein, said color development area is close to be referred within the scope of certain color development area numerical error, the color development area of each LED luminescence unit is considered as identical in the sensing range of naked eyes, therefore, LED module, the display of LED display display device of composition are homogeneous equally, and display effect is equally very good.
In order to the color development area reaching each LED luminescence unit is identical or close, the LED light emitting diode of same point of gear selecting and adjacent point of gear selecting thereof can be adopted to reach; Or, also can by arranging chromaticity coordinates computing module in adjusting gear, the color development area of each LED luminescence unit is calculated by chromaticity coordinates computing module, and, according to the brightness of each LED light emitting diode, be object brightness by the brightness adjustment of each LED light emitting diode, make the color development area of each LED luminescence unit identical or close; Or, can also by arranging wavelength computing module in adjusting gear, the color development area of each LED luminescence unit is calculated by wavelength computing module, and, according to the brightness of each LED light emitting diode, be object brightness by the brightness adjustment of each LED light emitting diode, make the color development area of each LED luminescence unit identical or close.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (6)
1. a LED display system, is characterized in that, comprises at least one LED module, a main control unit and at least one from control device;
Described LED module comprises at least two mounting bars, some LED luminescence units and control module thereof, power lead, at least one main signal line and at least one from signal wire; Power lead comprises one or more power supply line and one or more ground wire, and each power supply line provides voltage for described LED module, and each ground wire is for importing the earth by electric charge unnecessary on described LED module;
Described LED luminescence unit adopts the LED light emitting diode of same point of gear selecting;
Described main control unit is connected with described main signal line, for generation of main control signal; Describedly to be connected from signal wire from control device with described, for generation of from control signal;
Described control module arranges some functional modules, comprises fault detect submodule, fault isolation submodule and control signal and changes submodule;
Whether described fault detect submodule is connected with each signal wire, described fault isolation submodule respectively, correct for detecting main control signal, notifies described fault isolation submodule;
Described fault isolation submodule is also changed submodule with described control signal and is connected, and for when described main control signal is incorrect, judges that described main signal line breaks down, isolates described main control signal, notifies that described control signal changes submodule;
Described control signal changes submodule, described from control signal for being replaced by by described main control signal, and according to described from control signal, each LED luminescence unit of drived control;
Described main control signal is identical or different from control signal with described;
Each connecting portion is set to connecting male or connects female seat;
Be provided with the mounting bar of each LED luminescence unit, interfixed by stationary installation, each mounting bar is parallel to each other or mutually vertical; In each mounting bar be parallel to each other, the spacing between adjacent two mounting bars, equals the spacing between other adjacent two mounting bars; Wherein, described spacing is 5 centimetres to 500 centimetres;
Described main control unit or described from control device, one state display module is also set, for receiving fault data, according to described fault data, calculate and show abort situation, in described state display module, fault data receiving interface is set, fault data receiving interface is connected with fault data output line road, for receiving the fault data that described fault data output line road is sent back, according to described fault data, calculate the particular location broken down, and show in described state display module;
Spacing between each LED luminescence unit is set at least 5 centimetres;
At least one identify unit is also set, for identifying the performance parameter of each described LED module; Wherein, described identify unit is paper labels or plastic label; Or be that there is the bar code designed according to each performance parameter; Described identify unit embeds and is arranged on described LED module.
2. LED display system according to claim 1, is characterized in that, the end of arbitrary mounting bar is provided with connecting portion, at least comprises power lead connecting portion, main signal line connecting portion and from signal wire connecting portion.
3. LED display system according to claim 1, is characterized in that, described fault detect submodule is also connected with a fault data output line road, for exporting fault data.
4. LED display system according to claim 1, is characterized in that, the spacing between each LED luminescence unit is set to arbitrary numerical value of following numerical value set, and its unit is centimetre;
Described set of values is combined into 5,8,9,10,12,15,18,20,23,24,25,30,33,36,40,43,45,49,55,60,64,70,72,75,80,81,82,90,99,111,125,138,149,167,186,200,225,256,268,292,303,337,339,353,369,382,406,433,442,451,460,499,500,600,800,900,999,1200.
5. LED display system according to claim 1, is characterized in that, comprises a main signal line and three from signal wire;
Respectively be used for transmitting first respectively from control signal, second from control signal and the 3rd from control signal from signal wire;
Described fault detect submodule, also respectively whether correct from control signal for detecting, and notify described fault isolation submodule;
Further, described fault isolation submodule, also for when respectively breaking down from signal wire, isolation is each from control signal;
Described control signal changes submodule, is also described second from control signal for changing described first from control signal, or, be the described 3rd from control signal for changing described second from control signal;
Such as, in each signal wire, any two signal wires be arranged in parallel, and, with the perpendicular setting of other two signal wires.
6. LED display system according to claim 1, is characterized in that, also arranges an adjusting gear, and described adjusting gear is connected with each LED luminescence unit, for adjusting brightness or the chromaticity coordinates of each LED luminescence unit, to obtain identical or close color development area.
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| CN102169666B (en) * | 2011-03-17 | 2016-04-27 | 深圳市中庆微科技开发有限公司 | The LED display system that a kind of intelligent online detects |
| CN103474029B (en) * | 2013-09-10 | 2015-10-07 | 苏州君嬴电子科技有限公司 | Led display system and control method thereof |
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| US20080001525A1 (en) * | 2006-06-30 | 2008-01-03 | Au Optronics Corporation | Arrangements of color pixels for full color OLED |
| CN201163495Y (en) * | 2008-01-11 | 2008-12-10 | 武汉市闪亮科技有限公司 | Vacuum glass image display |
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| CN200972744Y (en) * | 2006-08-09 | 2007-11-07 | 梁贵悦 | Outdoor signboard |
| CN201203020Y (en) * | 2008-05-09 | 2009-03-04 | 北京中庆微数字设备开发有限公司 | LED curtain wall lamp with redundant fault tolerant function |
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