CN101645223A - LED display screen and internal power supply system and signal transmitting system thereof - Google Patents
LED display screen and internal power supply system and signal transmitting system thereof Download PDFInfo
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- CN101645223A CN101645223A CN200910189721A CN200910189721A CN101645223A CN 101645223 A CN101645223 A CN 101645223A CN 200910189721 A CN200910189721 A CN 200910189721A CN 200910189721 A CN200910189721 A CN 200910189721A CN 101645223 A CN101645223 A CN 101645223A
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Abstract
The invention discloses an LED display screen, comprising a plurality of LED modules held in a display screen box body, a receiving card for receiving audio/video data and a power, wherein the LED modules are connected with the power by a PCB power wire and are connected with the receiving card by a PCB data wire; the PCB data wire and the PCB power wire are both PCB, comprising a hard PCB and a flexible PCB. The invention correspondingly provides an internal power supply system of the LED display screen and a signal transmitting system of the LED display screen. The invention takes PCB as thepower wire and the signal wire, thereby improving production technology, saving materials, having good heat dispersion performance, improving the whole reliability and stability, and lowering cost and difficulty of maintenance operation. The wiring is more standard, thereby improving production efficiency and reducing electromagnetic interference pollution; in addition, the internal power supplysystem and the signal transmitting system are reasonably matched, thereby reducing the mutual interference between signals so as to improve the quality of signal transmission.
Description
Technical field
The present invention relates to field of display devices, relate in particular to a kind of LED display.
Background technology
LED display adopts many power supplys, many power leads that the LED module is carried out the discrete type power supply mostly at present, and signal transmission form adopts winding displacement discrete type transmission mode, causes LED display to have following problem:
One, power supply and hop adopt power lead to give the power supply of LED module, and power lead has the branch of length, pressure drop also inequality, thereby cause the current/voltage skewness of each module.Solder joint is many, is easy to generate rosin joint and causes module outage or electricity shortage, checks and safeguards difficulty.Number of power sources is many, causes the reduction of box house space utilization rate, and the temperature of display screen raises, the reduction of display effect, also can increase the usage quantity and the cost of cooling system in addition.Being connected between power lead and the LED module is unreliable, and be loosening easily, and exposed dangerous power lead bring danger can for the personnel of manipulating.The power supply mode of many power supplys and many power leads makes the electromagnetic interference (EMI) of LED display bigger, causes environmental pollution.
Two, signal hop adopts the mode of winding displacement and winding displacement chuck that module is carried out the signal cascade transmission, and its performance is unreliable, connects easily to become flexible, and influences the normal display effect of display screen.Signal transmission form adopts receiving card, adapter and three grades of separate types of winding displacement that signal is transferred to module, complex process, and operation inconvenience, the fraction defective of signal transmission is higher.Use the connected mode of winding displacement to make box house disorderly and unsystematic, untidy not attractive in appearance.Winding displacement is different in size, and product is lack of standardization, Operation and Maintenance inconvenience.
Three, body structure part, the casing heaviness that existing LED display is used, thickness reaches 15 centimetres, and is promptly not attractive in appearance impracticable again.The box house complex structure, production stage is various, and technology is unreasonable, and production efficiency is lower.
Four, production technology part, the box house structure of the LED display of the same model that same manufacturer produces is all not the same, and product specification is lack of standardization, and industry does not have standard, can not effectively increase productivity.
In summary, existing LED display obviously exists inconvenience and defective, so be necessary to be improved on reality is used.
Summary of the invention
At above-mentioned defective, the object of the present invention is to provide a kind of LED display and internal power supply system thereof and signal transmission system, improve production technology, enhance productivity, save material, optimize heat dispersion, improved global reliability, stability and security, reduce cost and maintenance activity difficulty, guaranteed the product specification of LED display simultaneously.
To achieve these goals, the invention provides a kind of LED display, comprise a plurality of LED modules that are contained in the display screen box body, a receiving card and a power supply that is used to receive audio, video data, described LED module is connected with described power supply by the PCB power lead, described LED module is connected with described receiving card by the PCB data line, and described PCB data line and/or described PCB power lead are PCB.
According to LED display of the present invention, described a plurality of LED modules are arranged, and described LED module comprises power input interface, Data Input Interface and data output interface.
According to LED display of the present invention, described PCB power lead is connected with the power input interface of described LED module by screw and is fixed in this LED module.
According to LED display of the present invention, the power input interface of each row or each row LED module forms a plurality of serial or parallel connection structures by described PCB power lead serial or parallel connection, described a plurality of serial or parallel connection structure is by the power bus parallel connection, and described power bus is connected with described power supply.
According to LED display of the present invention, the material of described power bus is Copper Foil or PCB.
According to LED display of the present invention, described receiving card is connected with the Data Input Interface of the first row LED module, and the data output interface of each row LED module passes through the corresponding connection of described PCB data line with the Data Input Interface of next column LED module; Described receiving card is connected with the Data Input Interface of the first row LED module, and the data output interface of each row LED module passes through the corresponding connection of described PCB data line with the Data Input Interface of next line LED module.
According to LED display of the present invention, described PCB data line is connected with receiving card welding or plug; The Data Input Interface and the data output interface of described LED module are respectively equipped with plug connector, and described PCB data line is connected with described Data Input Interface or described data output interface by this plug connector.
According to LED display of the present invention, described power supply is the Switching Power Supply of DC5V～24V.
The present invention is corresponding to provide a kind of LED display internal power supply system, comprises a plurality of LED module and the power supplys that are arranged that are contained in the display screen box body, and described LED module is connected with described power supply by the PCB power lead, and described PCB power lead is PCB.
The present invention also provides a kind of LED display signal transmission system, comprise a plurality of LED module of arranged and the receiving cards that are used to receive audio, video data of being that are contained in the display screen box body, described LED module is connected with described receiving card by the PCB data line, and described PCB data line is PCB.
The present invention is connected with power supply described LED module respectively with the PCB data line by the PCB power lead with receiving card, PCB replaces traditional power lead and data line, has alleviated the weight of LED display, improve production technology, enhance productivity, save material more, reduced cost; PCB is little as power lead and data line shared volume ratio conventional power source line and data line, and the single power supply mode replaces traditional multiple feed mode, saves the space more, is convenient to the display screen box body heat radiation, thereby has improved heat dispersion; Solved owing to conventional power source line and the innumerable and disordered problem that produces electromagnetic interference (EMI) of data line, having solved the conventional power source line simultaneously causes joint to become flexible and the problem of loose contact in the friction of LED display casing, adopt PCB layout standard more, thereby improve global reliability, stability and security, reduce the maintenance activity difficulty; And guaranteed the product specification of LED display.
Preferably, described PCB power lead is connected with the power input interface of described LED module by screw and is fixed in this LED module.Solved the multi-link unstable problem of conventional power source line solder joint, be convenient to check and safeguard.Simultaneously the LED module is carried out connection in series-parallel, be connected by PCB with power supply again, solve the current/voltage problem pockety that conventional power source line length weak point differs and causes each LED module, made the drive current of LED module balanced more, thereby guaranteed the homogeneity of display brightness.
The present invention adopt receiving card by the PCB data line directly and the LED module carry out data transmission, cancel traditional receiving card, three grades of data-transmission modes that separate of adapter and winding displacement, thereby reduced the fraction defective of data transmission, improved the quality of data transmission.
The present invention adopts PCB as power lead and signal wire, simplified designer and producers' workload, and internal power supply system and signal transmission system collocation are more reasonable, reduced interfering with each other between the signal, further improved global reliability and stability to improve the quality of data transmission.
Description of drawings
Fig. 1 is the circuit structure diagram of an embodiment of the present invention.
Fig. 2 is the internal power supply system structural drawing of an embodiment of the present invention.
Fig. 3 is the signal transmission system structural drawing of an embodiment of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
As shown in Figure 1, a kind of LED display 100 of the present invention, comprise a plurality of LED modules 11 that are contained in the display screen box body 10, be used to receive the receiving card 12 and a power supply 13 of audio, video data, LED module 11 is connected with power supply 13 by PCB power lead 14, power supply 13 is powered to LED module 11 by PCB power lead 14, LED module 11 is connected with receiving card 12 by PCB data line 15, receiving card 12 sends to LED module 11 by PCB data line 15 with audio-video signal, PCB power lead 14 and/or PCB data line 15 are PCB (Printed Circuit Board, printed circuit board (PCB)), flexible PCB for example, rigid PCB or other PCB.Power supply 13 is the low-voltage and high-current power supply, is preferably the Switching Power Supply of DC5V～24V.
As depicted in figs. 1 and 2, a plurality of LED modules 11 are arranged, and LED module 11 comprises power input interface, Data Input Interface 111 and a data output interface 112.The power input interface of each row LED module 11 forms a plurality of serial or parallel connection structures by PCB power lead 14 serial or parallel connections, described a plurality of serial or parallel connection structure is by a power bus 16 parallel connections, power bus 16 is connected with power supply 13, forms internal power supply system as shown in Figure 2.Because matrix has symmetry, also the power input interface serial or parallel connection of each row LED module 11 can be formed a plurality of serial or parallel connection structures, parallel connection is connected with power supply 13 again.The material of this power bus 16 is Copper Foil or PCB.Whereby, the invention solves the power lead current/voltage problem pockety that causes each LED module 11 different in size, make the drive current of LED module 11 balanced more, thereby guaranteed the homogeneity of display brightness.
Preferably, PCB power lead 14 is connected with the power input interface of LED module 11 by screw 17 and is fixed in this LED module 11.Solved the multi-link unstable problem of conventional power source line solder joint, also be convenient to simultaneously check and safeguard.
As shown in figures 1 and 3, receiving card 12 is connected with the Data Input Interface 111 of the LED module 11 of first row, the data output interface 112 of the LED module 11 of each row passes through the 15 corresponding connections of PCB data line with the Data Input Interface 111 of the LED module 11 of next column, thereby forms signal transmission system as shown in Figure 3.Receiving card 12 by PCB data line 15 directly and LED module 11 carry out data transmission, cancel traditional receiving card, three grades of data-transmission modes that separate of adapter and winding displacement, thereby reduced the fraction defective of data transmission, improved the quality of data transmission.Because matrix has symmetry, obviously, receiving card 12 also can be connected with the Data Input Interface 111 of the first LED module 11 of going, and the data output interface 112 of the LED module 11 of each row passes through the 15 corresponding connections of PCB data line with the Data Input Interface of the LED module 11 of next line 111.Preferably, PCB data line 15 is connected with receiving card 12 welding or plug; The Data Input Interface 111 and the data output interface 112 of LED module 11 are respectively equipped with plug connector, and PCB data line 15 is connected with Data Input Interface 111 or data output interface 112 by this plug connector.
By Fig. 1～Fig. 3 as can be seen, the present invention replaces conventional power source line and data line by PCB as power lead and data line, guarantees the rationality and the wiring width of wiring, has simplified designer and producers' workload, has reduced the electromagnetic interference (EMI) pollution; The power lead layout of standard has guaranteed the equilibrium of LED module 11 drive currents and the homogeneity of display brightness, thereby has improved the global reliability and the stability of LED display 100; Reduce the control signal decay, improve antijamming capability, reduced maintenance cost and task difficulty; Internal power supply system and signal transmission system wiring have rationally reduced interfering with each other between the signal, have improved the quality of data transmission.
The present invention is corresponding to provide a kind of LED display internal power supply system, as shown in Figure 2, comprise a plurality of LED module 11 and the power supplys 13 that are arranged that are contained in the display screen box body 10, LED module 11 is connected with power supply 13 by PCB power lead 14, and PCB power lead 14 is PCB.The power input interface serial or parallel connection of the LED module 11 of each row or each row forms a plurality of serial or parallel connection structures, and described a plurality of serial or parallel connection structures are by power bus 16 parallel connections, and power bus 16 is connected with power supply 13.This LED display internal power supply system has solved the multi-link unstable problem of conventional power source line solder joint, is convenient to check safeguard.Simultaneously LED module 11 is carried out connection in series-parallel, be connected by PCB with power supply 13 again, solve the current/voltage problem pockety that conventional power source line length weak point differs and causes each LED module 11, made the drive current of LED module 11 balanced more, thereby guaranteed the homogeneity of display brightness.
The present invention is corresponding to provide a kind of LED display signal transmission system, as shown in Figure 3, comprise a plurality of receiving cards 12 that are the LED module 11 of arranged and are used to receive audio, video data that are contained in the display screen box body 10, LED module 11 is connected with receiving card 12 by PCB data line 15, receiving card 12 is connected with the Data Input Interface 111 of the LED module 11 of first row or first row, and the data output interface 112 of the LED module 11 of each row or each row passes through the 15 corresponding connections of PCB data line with the Data Input Interface of the LED module 11 of next column or next line 111.This LED display signal transmission system adopts receiving card 12 directly to carry out data transmission with LED module 11 by PCB, thereby has reduced the fraction defective of information transmission, has improved the quality that control signal is transmitted.
In sum, the present invention is connected with power supply the LED module respectively with the PCB data line by the PCB power lead with receiving card, and PCB replaces traditional power lead and data line, has alleviated the weight of LED display, saves material more, has reduced cost; PCB is little as power lead and data line shared volume ratio conventional power source line and data line, and the single power supply mode replaces traditional multiple feed mode, saves the space more, is convenient to the display screen box body heat radiation, thereby has improved heat dispersion; Solved owing to conventional power source line and the innumerable and disordered problem that produces electromagnetic interference (EMI) of data line, having solved the conventional power source line simultaneously causes joint to become flexible and the problem of loose contact in the friction of LED display casing, adopt PCB layout standard more, thereby improve global reliability and stability, reduce the maintenance activity difficulty.
Preferably, described PCB power lead is connected with the power input interface of described LED module by screw and is fixed in this LED module.Solved the multi-link unstable problem of conventional power source line solder joint, be convenient to check and safeguard.Simultaneously the LED module is carried out connection in series-parallel, be connected by PCB with power supply again, solve the power lead current/voltage problem pockety that causes each LED module different in size, made the drive current of LED module balanced more, thereby guaranteed the homogeneity of display brightness.
The present invention adopt receiving card by the PCB data line directly and the LED module carry out data transmission, cancel traditional receiving card, three grades of data-transmission modes that separate of adapter and winding displacement, thereby reduced the fraction defective of data transmission, improved the quality of data transmission.
The present invention adopts PCB as power lead and signal wire, improves production technology, enhances productivity and has simplified designer and producers' workload; And internal power supply system and signal transmission system collocation are more reasonable, have reduced interfering with each other to improve the quality of data transmission between the signal, have further improved global reliability, stability and security; Guaranteed the product specification of LED display simultaneously.
Claims (10)
1, a kind of LED display, it is characterized in that, comprise a plurality of LED modules that are contained in the display screen box body, a receiving card and a power supply that is used to receive audio, video data, described LED module is connected with described power supply by the PCB power lead, described LED module is connected with described receiving card by the PCB data line, and described PCB data line and/or described PCB power lead are PCB.
2, LED display according to claim 1 is characterized in that, described a plurality of LED modules are arranged, and described LED module comprises power input interface, Data Input Interface and data output interface.
3, LED display according to claim 2 is characterized in that, described PCB power lead is connected with the power input interface of described LED module by screw and is fixed in this LED module.
4, LED display according to claim 3, it is characterized in that, the power input interface of each row or each row LED module forms a plurality of serial or parallel connection structures by described PCB power lead serial or parallel connection, described a plurality of serial or parallel connection structure is by the power bus parallel connection, and described power bus is connected with described power supply.
5, LED display according to claim 4 is characterized in that, described PCB comprises rigid PCB and flexible PCB; And/or the material of described power bus is Copper Foil or PCB.
6, LED display according to claim 2, it is characterized in that, described receiving card is connected with the Data Input Interface of the first row LED module, and the data output interface of each row LED module passes through the corresponding connection of described PCB data line with the Data Input Interface of next column LED module;
Described receiving card is connected with the Data Input Interface of the first row LED module, and the data output interface of each row LED module passes through the corresponding connection of described PCB data line with the Data Input Interface of next line LED module.
7, LED display according to claim 6 is characterized in that, described PCB data line is connected with receiving card welding or plug; The Data Input Interface and the data output interface of described LED module are respectively equipped with plug connector, and described PCB data line is connected with described Data Input Interface or described data output interface by this plug connector.
According to each described LED display of claim 1～7, it is characterized in that 8, described power supply is the Switching Power Supply of DC5V～24V.
9, a kind of LED display internal power supply system is characterized in that, comprises a plurality of LED modules and the power supply that are contained in the display screen box body, and described LED module is connected with described power supply by the PCB power lead, and described PCB power lead is PCB.
10, a kind of LED display signal transmission system, it is characterized in that, comprise a plurality of LED modules that are contained in the display screen box body and the receiving card that is used to receive audio, video data, described LED module is connected with described receiving card by the PCB data line, and described PCB data line is PCB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200910189721A CN101645223A (en) | 2009-08-25 | 2009-08-25 | LED display screen and internal power supply system and signal transmitting system thereof |
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| CN200910189721A CN101645223A (en) | 2009-08-25 | 2009-08-25 | LED display screen and internal power supply system and signal transmitting system thereof |
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| CN101645223A true CN101645223A (en) | 2010-02-10 |
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| CN200910189721A Pending CN101645223A (en) | 2009-08-25 | 2009-08-25 | LED display screen and internal power supply system and signal transmitting system thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102385814A (en) * | 2010-08-27 | 2012-03-21 | 上海广茂达光艺科技股份有限公司 | Rolling curtain screen |
| WO2012142779A1 (en) * | 2011-04-22 | 2012-10-26 | 深圳市洲明科技股份有限公司 | Led display screen case |
| CN102930789A (en) * | 2012-11-28 | 2013-02-13 | 吴小刚 | LED (light-emitting diode) display screen with bending and folding functions |
| WO2013044606A1 (en) * | 2011-09-27 | 2013-04-04 | 深圳市摩西尔电子有限公司 | Large led screen power supply system |
| CN103559872A (en) * | 2013-11-15 | 2014-02-05 | 京东方科技集团股份有限公司 | Power supply system |
| WO2014121716A1 (en) * | 2013-02-07 | 2014-08-14 | Chen Shuwen | Transparent display device |
| WO2014085226A3 (en) * | 2012-12-01 | 2014-08-14 | Lsi Industries, Inc. | Led display and display components |
| CN104575308A (en) * | 2015-01-06 | 2015-04-29 | 刘涵 | High-definition p5 LED (Light Emitting Diode) outdoor full-color display screen |
| CN105243969A (en) * | 2015-10-27 | 2016-01-13 | 安徽天众电子科技有限公司 | Small spacing integrated LED display screen |
| CN111063317A (en) * | 2018-10-17 | 2020-04-24 | 西安诺瓦星云科技股份有限公司 | Display control system, display module and display control card |
-
2009
- 2009-08-25 CN CN200910189721A patent/CN101645223A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102385814A (en) * | 2010-08-27 | 2012-03-21 | 上海广茂达光艺科技股份有限公司 | Rolling curtain screen |
| CN102385814B (en) * | 2010-08-27 | 2014-02-12 | 上海广茂达光艺科技股份有限公司 | Rolling curtain screen |
| WO2012142779A1 (en) * | 2011-04-22 | 2012-10-26 | 深圳市洲明科技股份有限公司 | Led display screen case |
| WO2013044606A1 (en) * | 2011-09-27 | 2013-04-04 | 深圳市摩西尔电子有限公司 | Large led screen power supply system |
| CN102930789A (en) * | 2012-11-28 | 2013-02-13 | 吴小刚 | LED (light-emitting diode) display screen with bending and folding functions |
| WO2014085226A3 (en) * | 2012-12-01 | 2014-08-14 | Lsi Industries, Inc. | Led display and display components |
| WO2014121716A1 (en) * | 2013-02-07 | 2014-08-14 | Chen Shuwen | Transparent display device |
| CN103559872A (en) * | 2013-11-15 | 2014-02-05 | 京东方科技集团股份有限公司 | Power supply system |
| CN103559872B (en) * | 2013-11-15 | 2015-04-15 | 京东方科技集团股份有限公司 | Power supply system |
| WO2015070583A1 (en) * | 2013-11-15 | 2015-05-21 | 京东方科技集团股份有限公司 | Power supply system |
| US10424938B2 (en) | 2013-11-15 | 2019-09-24 | Boe Technology Group Co., Ltd. | Power supply system |
| CN104575308A (en) * | 2015-01-06 | 2015-04-29 | 刘涵 | High-definition p5 LED (Light Emitting Diode) outdoor full-color display screen |
| CN105243969A (en) * | 2015-10-27 | 2016-01-13 | 安徽天众电子科技有限公司 | Small spacing integrated LED display screen |
| CN111063317A (en) * | 2018-10-17 | 2020-04-24 | 西安诺瓦星云科技股份有限公司 | Display control system, display module and display control card |
| CN111063317B (en) * | 2018-10-17 | 2021-09-07 | 西安诺瓦星云科技股份有限公司 | Display control system, display module and display control card |
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Application publication date: 20100210 |