CN112071219B - Adapter plate, LED display box body and LED display screen - Google Patents
Adapter plate, LED display box body and LED display screen Download PDFInfo
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- CN112071219B CN112071219B CN202010986546.4A CN202010986546A CN112071219B CN 112071219 B CN112071219 B CN 112071219B CN 202010986546 A CN202010986546 A CN 202010986546A CN 112071219 B CN112071219 B CN 112071219B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention relates to an adapter plate, an LED display box body and an LED display screen, wherein the adapter plate comprises a receiving card, a plurality of lamp panel interfaces and a data extraction module; the data extraction module is arranged corresponding to the lamp panel interface; the receiving card comprises N data output interfaces and a plurality of clock signal output interfaces; the receiving card outputs the lamp panel data set through the data output interface; the M data extraction modules are in a group and connected with the same data output interface; in the same group of data extraction modules, each data extraction module receives data separation clock signals with different time sequences; and the data extraction module is used for separating a clock signal according to the received data, extracting lamp panel data of a corresponding time sequence from the lamp panel data set, outputting the lamp panel data to a corresponding lamp panel interface and sending the lamp panel data to the LED lamp panel. Through the mode of timesharing multiplex, under the condition that does not show to increase the data output pin of receiving the card, can effectively promote the quantity of adapter plate area year LED lamp plate.
Description
Technical Field
The invention relates to the field of LED display screens, in particular to an adapter plate, an LED display box body and an LED display screen.
Background
With the continuous development of LED display technology, LED display screens are applied in more and more scenes. People have higher and higher requirements on color, resolution and fine granularity of display pictures, and the LED display screens with small spacing are increasing.
The existing LED display screen is generally formed by splicing a plurality of LED display box bodies. Every LED shows the box, can be provided with a plurality of LED lamp plates. In the LED display box body, still can be provided with a keysets (HUB board), be provided with the receiving card on the keysets. The receiving card receives video data input from outside, and the video data are connected with the LED lamp panels through the clamping groove connectors on the adapter plate, so that the video data are distributed to the LED lamp panels to be displayed.
Along with the LED display screen dot interval is smaller and smaller, the pixel density of the LED display screen is higher and higher, and each adapter plate needs to carry more LED lamp panels. However, the number of output pins of the FPGA on the receiving card is limited, and meanwhile, the number of pin pins of the card slot connector on the adapter plate is also limited, so that the number of LED lamp panels which can be loaded by the existing adapter plate is limited, and the loading requirement of the small-spacing LED display box body cannot be met.
And in order to increase the LED lamp plate quantity that the keysets area carried, there are two kinds of improvement schemes:
firstly, the number of output pins of an FPGA on a receiving card is increased, but a larger packaging structure is needed, so that the cost of a device is increased; meanwhile, the larger packaging structure also increases the volume of the receiving card.
And secondly, increasing the number of pin pins of the clamping groove connector on the adapter plate. This results in the need to redesign the card slot connector, which also results in increased cost and increased volume.
Therefore, a new adapter plate scheme is needed to increase the number of LED lamp panels loaded on the adapter plate without significantly increasing the cost and the size.
Disclosure of Invention
Based on this, it is necessary to provide an adapter plate, an LED display box body and an LED display screen to solve the problem that the existing adapter plate cannot meet the requirement of the loading quantity of the LED lamp panels of the small-spacing LED display screen.
The embodiment of the application provides a patch panel, which is used for controlling the lamp panel data distribution of an LED lamp panel in an LED display box body and comprises a receiving card, a plurality of lamp panel interfaces and a data extraction module; the number of the lamp panel interfaces is NxM, wherein N, M is a positive integer; the data extraction module is arranged corresponding to the lamp panel interface and is in communication connection with the lamp panel interface;
the receiving card at least comprises N data output interfaces and at least M clock signal output interfaces; the receiving card receives and processes input data, and outputs a lamp panel data set through the data output interface; the lamp panel data set is a set of lamp panel data corresponding to the M LED lamp panels;
the M data extraction modules are in a group, are connected with the same data output interface, and receive the lamp panel data set output by the data output interface; each clock signal output interface is connected with at least one corresponding data extraction module and outputs a data separation clock signal; in the same group of data extraction modules, each data extraction module is connected with different clock signal output interfaces and receives data separation clock signals with different time sequences;
the data extraction module is used for separating a clock signal according to the received data, extracting lamp panel data of a corresponding time sequence from the received lamp panel data set and outputting the lamp panel data to a corresponding lamp panel interface;
and the lamp panel interface is used for connecting the LED lamp panel and sending the received lamp panel data to the LED lamp panel.
In some embodiments, the data extraction module is a flip-flop or a latch.
In some embodiments, the number of clock signal output interfaces is the same as the number of lamp panel interfaces.
In some embodiments, the number of clock signal output interfaces is M.
In some embodiments, M takes the value of 2.
In some embodiments, the receiving card comprises a data processing unit, a data superposition unit and a clock signal unit; the data processing unit receives image data input from the outside and extracts lamp panel data corresponding to each LED lamp panel from the image data; the data superposition unit is used for superposing the lamp panel data of the LED lamp panels together to form a lamp panel data set; the clock signal unit is used for generating a plurality of data separation clock signals with different time sequences.
The application further discloses an LED display box body, which comprises an adapter plate and a plurality of LED lamp panels, wherein the adapter plate is electrically connected with the LED lamp panels; the adapter board receives externally input data, and outputs the data to the corresponding LED lamp panel for use after processing; the adapter plate is the adapter plate of any one of the preceding embodiments.
In some embodiments, the LED lamp panel further comprises a box body frame, and the adapter plate and the LED lamp panel are fixed on the box body frame.
In some embodiments, the lighting device further includes a power supply unit, configured to receive an input external power supply, and convert the input external power supply into an operating voltage required by the adapter board and the LED lamp panel.
The application further discloses an LED display screen, which comprises a plurality of LED display box bodies, wherein the LED display box bodies are spliced to form the LED display screen; the LED display box body is the LED display box body in any one of the embodiments.
According to the adapter board provided by the embodiment of the application, the plurality of lamp panel interfaces are divided into one group, and the plurality of lamp panel interfaces in each group are enabled to reuse the same data output interface of the receiving card; the receiving card collects a plurality of lamp panel data together, outputs the lamp panel data through a data output interface, outputs a plurality of data clock signals with different time sequences, enables the data extraction module to separate the clock signals according to the received data, extracts lamp panel data with corresponding time sequences from the lamp panel data collection, and outputs the lamp panel data to corresponding LED lamp panels through the lamp panel interface to work. Through the mode of timesharing multiplex, under the data output pin's that does not increase the receiving card that does not show the circumstances, can effectively promote the quantity of adapter plate on-load LED lamp plate. Compared with the existing scheme for improving the loading capacity of the adapter plate, the adapter plate provided by the embodiment of the application does not need to change a packaging structure, cannot cause the rapid rise of the cost, and cannot cause the increase of the volume of the adapter plate/the receiving card.
Drawings
Fig. 1 is a schematic diagram of a frame structure of an interposer according to an embodiment of the present application;
fig. 2 is a schematic diagram of a frame structure of an interposer employing a trigger according to an embodiment of the present application;
FIG. 3 is a timing diagram of data on the patch panel according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a frame structure of an interposer employing latches according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a frame structure of an interposer configured to receive a card in a further embodiment of the present application;
FIG. 6 is a schematic diagram of a frame structure of an LED display box according to an embodiment of the present application;
FIG. 7 is a schematic view of a frame structure of an LED display box according to another embodiment of the present application;
fig. 8 is a schematic structural diagram of an LED display screen according to an embodiment of the present application.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
As shown in fig. 1, an embodiment of the present application discloses an adapter board for controlling lamp panel data distribution of an LED lamp panel in an LED display box, including a receiving card 110, a plurality of lamp panel interfaces 130, and a data extraction module 120; the number of the lamp panel interfaces 130 is nxm, wherein N, M is a positive integer; the data extraction module 120 is arranged corresponding to the lamp panel interface and is in communication connection with the lamp panel interface;
a receiving card 110, which at least includes N data output interfaces and at least M clock signal output interfaces; the receiving card 110 receives and processes input DATA, and outputs a lamp panel DATA set DATA through a DATA output interface; the lamp panel DATA set DATA is a set of lamp panel DATA corresponding to the M LED lamp panels;
the M DATA extraction modules 120 are a group, connected to the same DATA output interface, and receive the lamp panel DATA set DATA output by the DATA output interface; each clock signal output interface is connected with at least one corresponding data extraction module 120, and outputs a data separation clock signal Clk; in the same group of data extraction modules 120, each data extraction module 120 is connected to a different clock signal output interface, and receives data separation clock signals Clk with different time sequences;
the DATA extraction module 120 is configured to separate the clock signal Clk from the received DATA, extract the lamp panel DATA Output corresponding to the time sequence from the received lamp panel DATA set DATA, and Output the lamp panel DATA Output to the lamp panel interface 130;
and the lamp panel interface 130 is used for connecting the LED lamp panel and sending the received lamp panel data Output to the LED lamp panel.
The data extraction module 120 may be any sequential logic circuit. For example, as shown in fig. 2, the data extraction module 120 may be a trigger 121. As shown in fig. 4, the data extraction module 120, may be a latch 122. For convenience of description, the data extraction module 120 is taken as an example of a trigger to specifically describe the patch panel provided in the present application.
Each group of data extraction modules includes M data extraction modules 120. M may be a positive integer greater than 1, such as 2, 3, or other larger values. The value of M is taken as 2 as an example.
Fig. 2 shows a simplified block diagram between a set of data extraction modules and receiving card 110. At this time, the receiving card 110 has a data output interface and two clock signal output interfaces, the group of data extracting modules 120 are specifically 2 flip-flops 121, and each flip-flop 121 is connected to one lamp panel interface 130.
For a DATA output interface of the receiving card 110, it connects two flip-flops 121 — flip-flops a and B, and 2 flip-flops 121 all receive the same lamp panel DATA set DATA. At this time, the lamp panel DATA set DATA includes two lamp panel DATA corresponding to the LED lamp panels a and B, as shown in fig. 3. Meanwhile, the flip-flops A and B are used as a group and are respectively connected with different clock signal output interfaces to receive data separation clock signals Clk-Clk A and Clk B with different time sequences. Under the triggering of DATA separation clock signals Clk with different time sequences, a trigger A extracts lamp panel DATA Output A with corresponding time sequences from a lamp panel DATA set DATA, namely lamp panel DATA Output to an LED lamp panel A; the trigger B extracts lamp panel DATA Output B corresponding to the time sequence from the lamp panel DATA set DATA, that is, lamp panel DATA Output to the LED lamp panel B.
In the timing chart shown in fig. 3, the flip-flop 121 is triggered at the rising edge of the DATA separation clock signal Clk, and outputs the DATA signal of the lamp panel DATA set DATA to the outside through the output port. It will be appreciated that flip-flop 121 may also be triggered to output on the falling edge of data separation clock signal Clk.
The timing diagram of the lamp panel DATA set DATA, the DATA separation clock signal Clk a, the DATA separation clock signal Clk B, and the lamp panel DATA Output a and Output B at corresponding timings is shown in fig. 3.
Therefore, the receiving card 110 can carry 2 LED lamp panels by using only 1 data output interface. It can be understood that, by increasing the number of data extraction modules 120 in each group of data extraction modules and the number of separated clock signals Clk, the number of LED lamp panels carried by the receiving card 110 can be further increased.
According to the adapter plate provided by the embodiment of the application, the plurality of lamp panel interfaces are divided into one group, and the plurality of lamp panel interfaces in each group multiplex the same data output interface of the receiving card; the receiving card collects a plurality of lamp panel data together, outputs the lamp panel data through a data output interface, outputs a plurality of data clock signals with different time sequences, enables the data extraction module to separate the clock signals according to the received data, extracts lamp panel data with corresponding time sequences from the lamp panel data collection, and outputs the lamp panel data to corresponding LED lamp panels through the lamp panel interface to work. Through the mode of timesharing multiplex, under the data output pin's that does not increase the receiving card that does not show the circumstances, can effectively promote the quantity of adapter plate on-load LED lamp plate. Compared with the existing scheme for improving the loading capacity of the adapter plate, the adapter plate provided by the embodiment of the application does not need to change a packaging structure, cannot cause the sharp rise of the cost, and cannot cause the increase of the volume of the adapter plate/the receiving card.
On the receiving card 110, the number of the clock signal output interfaces may be the same as the number of the lamp panel interfaces 130 — N × M clock signal output interfaces, where each clock signal output interface corresponds to one lamp panel interface 130 and the data extraction module 120.
Preferably, M has a value of 2. At the moment, compared with the existing adapter plate and the existing receiving card, the number of the LED lamp panels with loads can be doubled only by adding one clock signal output interface.
As shown in fig. 5, the receiving card 110 may specifically include a data processing unit 111, a data superimposing unit 112, and a clock signal unit 113; a data processing unit 111 for receiving externally input image data and extracting lamp panel data corresponding to each LED lamp panel; the DATA superposition unit 112 is used for superposing the lamp panel DATA of the LED lamp panels together to form a lamp panel DATA set DATA; a clock signal unit 113 for generating a plurality of data separation clock signals Clk at different timings.
The number of the lamp panel DATA included in the lamp panel DATA set DATA may be determined in advance, and then transmitted to the DATA processing unit 111, and then forwarded to the DATA superimposing unit 112, or may be directly transmitted to the DATA superimposing unit 112 from the outside. In some embodiments, the DATA overlaying unit 112 may also automatically read the number of DATA extraction modules 120 connected to each DATA output interface, so as to determine the number of lamp panel DATA in the lamp panel DATA set DATA. It is understood that the amount of lamp panel DATA in the lamp panel DATA set DATA may also be determined by the interaction between the receiver card 110 and the LED lamp panel.
The receiving card 110 may generate a clock signal itself, or may receive a basic clock signal from the outside, and then process the clock signal to form a clock signal required for the operation of the receiving card 110. In some embodiments, as shown in fig. 5, the receiving card 110 may further include a frequency multiplier 114 for generating a frequency-multiplied clock signal according to the basic clock signal; and the DATA superposition unit 112 is used for superposing the lamp panel DATA of the plurality of LED lamp panels together according to the frequency multiplication clock signal to form a lamp panel DATA set DATA. For example, the receiving card 110 may receive a basic clock signal from the outside and then transmit the basic clock signal to the clock signal unit 113 to generate the data separation clock signal Clk. When M is 2, the frequency multiplier 114 may use a frequency doubler.
In some embodiments, a network interface may be further disposed on the patch panel, and electrically connected to the receiving card 110, for receiving externally input data through a network cable. The network interface may specifically be an RJ45 network interface.
It is understood that in some embodiments, a light interface may also be disposed on the adapter board and electrically connected to the receiving card 110 for receiving externally input data through a light cable.
In some embodiments, a status indicator lamp may be further disposed on the adapter board to indicate the operating status of the receiving card 110 or the LED lamp panel.
In some embodiments, the adapter board may further include a test key electrically connected to the data processing unit 111; and the data processing unit 111 generates control data corresponding to the test according to the electrical connection state of the test key, and sends the control data to the outside through the data output interface to perform the test.
According to the adapter board provided by the embodiment of the application, the plurality of lamp panel interfaces are divided into one group, and the plurality of lamp panel interfaces in each group are enabled to reuse the same data output interface of the receiving card; the receiving card collects a plurality of lamp panel data together, outputs the lamp panel data through a data output interface, outputs a plurality of data clock signals with different time sequences, enables the data extraction module to separate the clock signals according to the received data, extracts lamp panel data with corresponding time sequences from the lamp panel data collection, and outputs the lamp panel data to corresponding LED lamp panels through the lamp panel interface to work. Through the mode of timesharing multiplex, under the data output pin's that does not increase the receiving card that does not show the circumstances, can effectively promote the quantity of adapter plate on-load LED lamp plate. Compared with the existing scheme for improving the loading capacity of the adapter plate, the adapter plate provided by the embodiment of the application does not need to change a packaging structure, cannot cause the rapid rise of the cost, and cannot cause the increase of the volume of the adapter plate/the receiving card.
An embodiment of the application further discloses an LED display box, as shown in fig. 6, including an adapter plate 100 and a plurality of LED lamp panels 200, where the adapter plate 100 is electrically connected to the LED lamp panels 200; the adapter board 100 receives externally input data, and outputs the lamp panel data to the corresponding LED lamp panel 200 for use after processing; the interposer 100 may be any one of the interposers described in any one of the preceding embodiments.
The same advantages are achieved because the adapter plate described in the previous embodiment is used.
The LED display box body can further comprise a box body frame, and the adapter plate 100 and the LED lamp panel 200 are fixed on the box body frame. For example, the box frame may have a front end and a rear end, and the LED lamp panel 200 may be fixed to the front end of the box frame to form a display surface; the adapter plate 100 may be fixed to the rear end of the cabinet frame.
In some embodiments, as shown in fig. 7, the LED display box may further include a power supply unit 300 for receiving an input external power and converting the input external power into an operating voltage required by the adapter board 100 and the LED lamp panel 200. For example, the external power source may be an alternating current, such as 220V alternating current, 110V alternating current, 100V alternating current, 48V alternating current, or the like; or may be a direct current, such as 12V direct current, 5V direct current, or the like.
Another embodiment of the application further discloses an LED display screen, as shown in fig. 8, including a plurality of LED display box bodies 10, the plurality of LED display box bodies 10 being spliced to form an LED display screen; the LED display box 10 is the LED display box according to any one of the embodiments.
In some embodiments, the LED display screen further includes a supporting frame 20, the LED display box 10 is installed on the supporting frame 20, and the supporting frame 20 provides structural support for the LED display box 10, so as to enhance the structural strength of the LED display screen, ensure the splicing effect of the LED display box 10, and ensure the display quality.
The same advantages are achieved because the adapter plate described in the previous embodiment is used.
All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A keysets, is used for controlling the lamp plate data distribution of LED lamp plate in LED display box, characterized by, including receiving card, several lamp plate interfaces and data extraction module; the number of the lamp panel interfaces is NxM, wherein N, M is a positive integer; the data extraction module is arranged corresponding to the lamp panel interface and is in communication connection with the lamp panel interface;
the receiving card at least comprises N data output interfaces and at least M clock signal output interfaces; the receiving card receives and processes input data, and outputs a lamp panel data set through the data output interface; the lamp panel data set is a set of lamp panel data corresponding to the M LED lamp panels;
the M data extraction modules are in a group, are connected with the same data output interface and receive the lamp panel data set output by the data output interface; each clock signal output interface is connected with at least one corresponding data extraction module and outputs a data separation clock signal; in the same group of data extraction modules, each data extraction module is connected with different clock signal output interfaces and receives data separation clock signals with different time sequences;
the data extraction module is used for separating a clock signal according to the received data, extracting lamp panel data of a corresponding time sequence from the received lamp panel data set and outputting the lamp panel data to a corresponding lamp panel interface;
and the lamp panel interface is used for connecting the LED lamp panel and sending the received lamp panel data to the LED lamp panel.
2. The patch panel of claim 1, wherein the data extraction module is a flip-flop or a latch.
3. The patch panel of claim 1, wherein the number of clock signal output interfaces is the same as the number of light panel interfaces.
4. The patch panel of claim 1 or 2, wherein the number of clock signal output interfaces is M.
5. The interposer as recited in claim 1, wherein M has a value of 2.
6. The patch panel of claim 1, wherein the receiving card comprises a data processing unit, a data superimposing unit, and a clock signal unit; the data processing unit receives image data input from the outside and extracts lamp panel data corresponding to each LED lamp panel from the image data; the data superposition unit is used for superposing the lamp panel data of the LED lamp panels together to form a lamp panel data set; the clock signal unit is used for generating a plurality of data separation clock signals with different time sequences.
7. An LED display box body comprises an adapter plate and a plurality of LED lamp panels, wherein the adapter plate is electrically connected with the LED lamp panels; the adapter board receives externally input data, and outputs the data to the corresponding LED lamp panel for use after processing; characterized in that the adapter plate is according to any one of claims 1-6.
8. The LED display box of claim 7, further comprising a box frame, wherein the adapter plate and the LED lamp panel are both fixed to the box frame.
9. The LED display box body of claim 7, further comprising a power supply unit for receiving an input external power supply and converting the input external power supply into a working voltage required by the adapter plate and the LED lamp panel.
10. An LED display screen comprises a plurality of LED display box bodies, wherein the LED display box bodies are spliced to form the LED display screen; the LED display box is characterized in that the LED display box is the LED display box in any one of claims 7 to 9.
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| CN103413525A (en) * | 2013-08-16 | 2013-11-27 | 西安诺瓦电子科技有限公司 | LED lamp panel, LED box and LED display screen |
| CN105047135A (en) * | 2015-08-20 | 2015-11-11 | 西安诺瓦电子科技有限公司 | Lamp panel module group, box body, and LED display screen system |
| CN106782294A (en) * | 2016-12-26 | 2017-05-31 | 西安诺瓦电子科技有限公司 | LED display control system |
| CN207164992U (en) * | 2017-08-03 | 2018-03-30 | 安徽科盟电子科技有限公司 | A kind of high-precise synchronization clock data concentrates device |
| CN207625572U (en) * | 2017-11-20 | 2018-07-17 | 北京时代民芯科技有限公司 | One kind being used for Ethernet pattern configurations time-sharing multiplex interface circuit |
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