CN212484910U - Improved LED display system - Google Patents
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- CN212484910U CN212484910U CN202021174518.4U CN202021174518U CN212484910U CN 212484910 U CN212484910 U CN 212484910U CN 202021174518 U CN202021174518 U CN 202021174518U CN 212484910 U CN212484910 U CN 212484910U
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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Abstract
The utility model discloses an improved LED display system, which comprises a main control board, a distributor and display modules, wherein a plurality of display modules are spliced to form a display screen, and the main control board receives or/and generates display data and control data and converts and outputs the display data and the control data to the distributor; the main control board comprises a data processing module, and the data processing module performs data processing on the display data and outputs the display data to the distributor; the distributor distributes the display data and the control data to the plurality of display modules; the display module comprises a data transmission distribution chip, a drive IC and an LED chip; the data transmission distribution chip outputs the received display data and control data to a data transmission distribution chip of a next display module, and simultaneously captures a part of the display data and the control data, converts the display data and the control data and outputs and distributes the display data and the control data to each drive IC; the driving IC drives the LED chip to emit light. The combination of the main control board, the distributor and the data transmission distribution chip realizes the transmission of display data and control data, and makes the structure of the display control system simple.
Description
Technical Field
The utility model relates to a LED display screen technical field especially indicates the LED display system of improvement.
Background
As shown in fig. 1, the conventional LED display system includes a video source, a video processor, a transmitting card, a receiving card, a display module, a power converter, and a power supply.
Video source: such as a PC, a camera, a monitoring camera, a server and other data acquisition or storage equipment, and can output various data formats such as VGA \ DVI \ HDMI \ SDI \ DP \ CVBS \ S-Vido \ and the like.
A video processor: the device has multi-path data input, such as data input supporting VGA \ DVI \ HDMI \ SDI \ DP \ CVBS \ S-Vido \ and the like, and multi-path data output such as multi-path HDMI or DVI data output.
Sending the card: the LED display system display data and control data sending equipment receives HDMI or DVI data output by the front end, converts the HDMI or DVI data into display data and control data required by the receiving card, and transmits the display data and control data to the receiving card through transmission paths such as a network or optical fibers. The number of the sending cards used by each screen is different according to the resolution of the LED display screen, namely, one LED display screen can be controlled by 1 or more sending cards in a cascade mode.
PC or mobile terminal: be connected with the sending card through USB interface or WIFI, enter the parameter setting through the sending card to the display module assembly.
The display module assembly: the display unit comprises a display module, a switching board, a receiving card, a power converter, a box body and the like. The receiving card converts the received display data and control data into display data and control data required by the display module and transmits the display data and control data to the driving IC of the display module, and the driving IC controls the LED chip to emit light through the driving logic module according to the display data and the control data. The display surface of the display module is formed by splicing one or more display modules. The LED display screen is formed by splicing a plurality of display modules.
The power converter: and the power converter receives the power supply of the power supply and converts the power supply into specific voltage and current to drive the LED chip to emit light.
A power supply: the LED display screen power supply is used for outputting power to the LED display screen, and is usually a power distribution cabinet.
Firstly, building a display module according to the size and the position of a screen, forming a complete LED display screen by the display module, and connecting a power line with a data line; secondly, a sending card output network port is connected according to the size of the LED display screen, a general sending card and a screen body are closer and directly transmit by using a network cable (the distance is less than or equal to 100 meters), when the sending card is farther from the screen body, the optical fiber transmission is used (the network cable data is converted into the optical fiber data, and the optical fiber data is converted into the network cable transmission at the receiving card), one network port of the general sending card is provided with 65 ten thousand points, and one 2K (1920 x 1080) is close to 21 ten thousand points, so that 4 sending port network ports are needed; thirdly, after the data of the sending card and the display module are connected, the display screen is connected and parameter setting is carried out through the sending card by using a PC or a mobile terminal through a USB line or a WIFI network, so that the LED display screen can realize the expected display function; and fourthly, transmitting the video source to be played to the LED display screen for display through the video processor and the receiving card.
The system control implementation mode of the current LED display screen basically comprises modes of a sending card and a receiving card, and the quantity of the receiving card and the quantity of the sending card are different according to different projects.
Disadvantages/drawbacks to be solved by the prior art:
1. the design of the LED display module is complex, because of the traditional sending card and receiving card mode, the display module must be composed of materials such as a display module, a transfer board (receiving card data are connected to the display module through the transfer board, and due to different names, the display module also has a bridge board or a HUB board), a receiving card (or the receiving card and the transfer board are designed into a whole), a box body and a power supply, and the thickness of the module is thicker.
2. The reliability is reduced, the display module and the adapter plate, and the adapter plate and the receiving card are connected in a plugging mode for many times, and the reliability of data transmission is reduced.
3. The system is complex in structure, and is formed by a receiving card and a receiving card mode, and a peripheral video acquisition and conversion device and a parameter setting device are added, so that the display screen system is complex, for example, 65 ten thousand points are carried by one internet access of a sending card, more than 200 ten thousand points are carried by one standard 2K (1920 x 1080), and 4 sending cards are needed for internet access output, so that the number of display screen points is more, the number of sending cards is more, and the connection is more complex.
4. The display screen connection has to be made with a separate device. After the LED display screen is assembled, data connection must be carried out on the display screen through the sending card by independent equipment, so that the display screen can normally display, the independent equipment can be a PC (personal computer), a mobile terminal and the like, and is directly connected with the sending card through a USB (universal serial bus) line or connected with the sending card through a WIFI (wireless fidelity) network.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is according to above-mentioned prior art not enough, proposes the LED display system of improvement, has solved current LED display system and has constituted complicated problem.
The technical scheme of the utility model is realized like this:
the improved LED display system comprises a main control board, a distributor and display modules, wherein a plurality of display modules are spliced to form a display screen;
the main control board receives or/and generates display data and control data and converts and outputs the display data and the control data to the distributor; the main control board comprises a data processing module, and the data processing module performs data processing on display data and outputs the display data to the distributor;
the distributor distributes the display data and the control data to the plurality of display modules;
the display module comprises a data transmission distribution chip, a drive IC and an LED chip; the data transmission distribution chip outputs the received display data and control data to a data transmission distribution chip of a next display module, and simultaneously captures a part of the display data and the control data, converts the display data and the control data and outputs and distributes the display data and the control data to each drive IC; the driving IC drives the LED chip to emit light.
Further, the data processing module performs gamma correction and point-by-point chromaticity correction on the display data.
Further, the data transmission distribution chip comprises a data transmission distribution module and a driving logic module;
the data transmission distribution module outputs the received display data and control data to a data processing chip of the next display module, and simultaneously captures a part of the display data and the control data and outputs the part of the display data and the control data to the driving logic module;
the drive logic module converts the display data and the control data and then outputs and distributes the converted display data and control data to each drive IC.
Furthermore, the display data and the control data between the main control board and the distributor are transmitted in two directions, the display data and the control data between the distributor and the display module are transmitted in two directions, and the display data and the control data are transmitted in two directions between the display module and the next display module through the data transmission and distribution module.
Furthermore, the power supply converter is also included; the power converter receives power and converts and outputs the power to the distributor, the distributor distributes the power output to the plurality of display modules, and the display modules output the power to the next display module.
Furthermore, the distributor is connected with the display module through a data power connector, and the display module is connected with the next display module through a data power connector.
Furthermore, the power converter outputs power to the main control board, the power converter outputs state data to the main control board, and the main control board outputs control data to the power converter.
Furthermore, the main control board is connected with the power converter through a data power connector.
Adopt above-mentioned technical scheme, the beneficial effects of the utility model reside in that:
1. through the combination of the main control board, the distributor and the data transmission distribution chip, the data display and data control transmission are realized, the combination of a traditional sending card and a traditional receiving card is replaced, the LED display system of the LED display screen is simple in structure, the internal design of the LED display screen is simple, the cost is reduced, the design is light and thin, meanwhile, the reliability is high, the fault rate is low, and the display effect is improved.
2. The display data and the control data are transmitted in two directions between the main control board and one distributor, the display data and the control data are transmitted in two directions between the distributor and the plurality of display modules, and the display data and the control data are transmitted in two directions between the display modules and the next display module through the data transmission distribution chip, so that the switching times of the display data and the control data are reduced, the reliability of the transmission of the display data and the control data is improved, and meanwhile, the monitoring function of each display module can be realized through the two-way data transmission.
3. The power supply of the power converter is distributed through the distributor, the power supply mode of a plurality of traditional power converters is replaced, the LED display system of the LED display screen is further simple in structure, the internal design of the LED display screen is simple, the cost is reduced, the design is light and thin, the reliability is high, and the failure rate is low.
4. The data power connector can realize bidirectional data transmission and power transmission, further reduces the use of wires, further simplifies the structure of an LED display system, reduces the cost and improves the reliability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a block diagram of a prior art LED display system.
Fig. 2 is a block diagram of the first embodiment.
Fig. 3 is a block diagram of a main control board in the first embodiment.
Fig. 4 is a block diagram of a data transmission distribution chip in the first embodiment.
Fig. 5 is a schematic structural diagram in the second embodiment.
In fig. 1 to 5, solid arrows indicate the transmission direction of data, and open arrows indicate the transmission direction of power.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, the utility model discloses in, the display data is used for providing the display screen and realizes image display, and control data is used for carrying out parameter setting to the display screen, makes the LED display screen can realize anticipated display function.
As shown in fig. 2, the utility model provides a first embodiment, a modified LED display system, including main control board, distributor and display module, a display screen is constituteed in a plurality of display module concatenations.
As shown in fig. 2 and 3, the main control board receives or/and generates display data, control data and converts the display data and the control data to output to the distributor. The main control board comprises a data processing module, and the data processing module performs data processing on the display data and outputs the display data to the distributor. Specifically, the data processing module performs gamma correction and point-by-point chromaticity correction on the display data.
The main control board can receive display data from a video source or a video splicer, and also can generate the display data through an operating system burnt on the main control board, or read local data to generate the display data; and the main control board can receive control data from the human-computer interaction equipment and can also generate the control data through an operating system burnt on the main control board.
And the distributor distributes the display data and the control data to the plurality of display modules.
And the display module outputs the received display data and control data to the next display module. The number of display modules that transmit display data and control data to each other is plural.
Specifically, as shown in fig. 2, the display module includes a data transmission and distribution chip, a driving IC, and an LED chip; the data transmission distribution chip outputs the received display data and control data to a data transmission distribution chip of a next display module, and simultaneously captures a part of the display data and the control data, converts the display data and the control data and outputs and distributes the display data and the control data to each drive IC; the driving IC drives the LED chip to emit light.
As shown in fig. 4, the data transmission distribution chip includes a data transmission distribution module and a driving logic module.
The data transmission and distribution module outputs the received display data and control data to a data processing chip of the next display module, and simultaneously captures a part of the display data and the control data and outputs the part of the display data and the control data to the driving logic module. The drive logic module converts the display data and the control data and then outputs and distributes the converted display data and control data to each drive IC.
As shown in fig. 2, the display data and the control data between the main control board and the distributor are bidirectionally transmitted, the display data and the control data between the distributor and the display module are bidirectionally transmitted, and the display data and the control data are bidirectionally transmitted between the display module and the next display module through the data transmission and distribution module. The main control board monitors the states of the display modules through the bidirectional data transmission function.
As shown in fig. 2, the first embodiment further includes a power converter; the power converter receives power and converts and outputs the power to the distributor, the distributor distributes the power output to the plurality of display modules, and the display modules output the power to the next display module. The power converter can receive a power supply from a mains supply and convert high-voltage alternating current into low-voltage direct current; the number of the display modules which transmit power to each other is multiple.
The distributor is connected with the display module through a data power connector, and the display module is connected with the next display module through a data power connector. The data power connector can realize bidirectional data transmission and power transmission, and further reduces the use of wires.
As shown in fig. 2, the power converter outputs power to the main control board, so as to supply power to the main control board. The power converter outputs the state data to the main control board, and the main control board receives the state data and monitors the running state of the power controller. The main control board outputs control data to the power converter, so that the power converter is controlled to supply power to the main control board and the distributor, and the power converter is controlled to be dormant or awaken.
The main control board is connected with the power converter through the data power connector, and the data power connector can realize transmission of control data, state data and power between the main control card and the power converter, so that the use of wires is reduced.
As shown in fig. 5, the present invention provides a second embodiment, an LED display screen. The second embodiment uses the novel LED display system provided in the first embodiment. In a second embodiment, 3 × 3 display modules are spliced to form a display screen, and the main control board, the distributor and the power converter are installed on the back of the display screen.
The main control board receives or/and generates display data, control data and converts and outputs the display data and the control data to the distributor, and monitors and controls the operation of the power converter. The power converter receives power and supplies power to the main control board and the distributor.
The distributor distributes display data, control data and power to 3 display module assemblies, each display module assembly is connected in series with 2 display module assemblies in proper order, can show data, control data and power transmission through data power connector between the adjacent display module assembly.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The improved LED display system comprises a main control board, a distributor and display modules, wherein a plurality of display modules are spliced to form a display screen, and the improved LED display system is characterized in that:
the main control board receives or/and generates display data and control data and converts and outputs the display data and the control data to the distributor; the main control board comprises a data processing module, and the data processing module performs data processing on display data and outputs the display data to the distributor;
the distributor distributes the display data and the control data to the plurality of display modules;
the display module comprises a data transmission distribution chip, a drive IC and an LED chip; the data transmission distribution chip outputs the received display data and control data to a data transmission distribution chip of a next display module, and simultaneously captures a part of the display data and the control data, converts the display data and the control data and outputs and distributes the display data and the control data to each drive IC; the driving IC drives the LED chip to emit light.
2. The improved LED display system of claim 1, wherein: the data processing module performs gamma correction and point-by-point chromaticity correction on the display data.
3. The improved LED display system of claim 1, wherein: the data transmission distribution chip comprises a data transmission distribution module and a driving logic module;
the data transmission distribution module outputs the received display data and control data to a data processing chip of the next display module, and simultaneously captures a part of the display data and the control data and outputs the part of the display data and the control data to the driving logic module;
the drive logic module converts the display data and the control data and then outputs and distributes the converted display data and control data to each drive IC.
4. The improved LED display system of claim 1, wherein: the display data and the control data between the main control board and the distributor are transmitted in two directions, the display data and the control data between the distributor and the display module are transmitted in two directions, and the display data and the control data are transmitted in two directions between the display module and the next display module through the data transmission and distribution module.
5. The improved LED display system of claim 1, wherein: the power supply converter is also included; the power converter receives power and converts and outputs the power to the distributor, the distributor distributes the power output to the plurality of display modules, and the display modules output the power to the next display module.
6. The improved LED display system of claim 5, wherein: the distributor is connected with the display module through a data power connector, and the display module is connected with the next display module through a data power connector.
7. The improved LED display system of claim 5, wherein: the power converter outputs power to the main control board, the power converter outputs state data to the main control board, and the main control board outputs control data to the power converter.
8. The improved LED display system of claim 7, wherein: the main control board is connected with the power converter through the data power connector.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111710288A (en) * | 2020-06-12 | 2020-09-25 | 东莞阿尔泰显示技术有限公司 | Improved LED display system |
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| CN114203102A (en) * | 2021-11-04 | 2022-03-18 | 东莞阿尔泰显示技术有限公司 | Display data distribution method and system of display module |
| CN114566122B (en) * | 2022-03-01 | 2023-08-01 | 业成科技（成都）有限公司 | Driving device of intelligent power supply and spliced display system thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101246664A (en) * | 2007-02-14 | 2008-08-20 | 天津英驰光电科技有限公司 | Optical display system composed of luminous elements |
| CN101127191B (en) * | 2007-09-24 | 2011-05-18 | 杭州士兰微电子股份有限公司 | LED matrix screen parameter calibration system and method |
| CN102034432A (en) * | 2010-12-15 | 2011-04-27 | 广东威创视讯科技股份有限公司 | Light-emitting diode (LED) display screen signal cascade system |
| CN105788513B (en) * | 2014-12-22 | 2018-08-17 | 西安诺瓦电子科技有限公司 | A kind of scanning card and LED display display control program |
| CN208077542U (en) * | 2018-05-04 | 2018-11-09 | 惠州雷曼光电科技有限公司 | display module, display screen and display system |
| CN212484910U (en) * | 2020-06-12 | 2021-02-05 | 东莞阿尔泰显示技术有限公司 | Improved LED display system |
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| CN111710288A (en) * | 2020-06-12 | 2020-09-25 | 东莞阿尔泰显示技术有限公司 | Improved LED display system |
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