CN109358828B - Display unit, splicing display device and splicing display system - Google Patents
Display unit, splicing display device and splicing display system Download PDFInfo
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- CN109358828B CN109358828B CN201811047280.6A CN201811047280A CN109358828B CN 109358828 B CN109358828 B CN 109358828B CN 201811047280 A CN201811047280 A CN 201811047280A CN 109358828 B CN109358828 B CN 109358828B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
- G06F3/1446—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display display composed of modules, e.g. video walls
Abstract
The invention relates to a display unit, characterized in that it comprises: the device comprises a first wireless transmission module, a receiving card, a display screen and a second wireless transmission module; the first transmission module is used for receiving first video data; the receiving card is connected with the first wireless transmission module; the display screen is connected with the receiving card; the second wireless transmission module is connected with the receiving card. The display unit receives or sends video data through the first wireless transmission module and the second wireless transmission module in a wireless transmission mode, so that multiple and messy lines caused by wired transmission are avoided; meanwhile, the display units adopt an extremely high frequency wireless transmission mode, so that transmission loss and interference are reduced, and meanwhile, the waterproof effect is better.
Description
Technical Field
The invention belongs to the field of displays, and particularly relates to a display unit, a splicing display device and a splicing display system.
Background
The spliced large screen is formed by splicing the spliced screens, wherein the spliced screen is a complete spliced display unit which can be used as a display independently and can be spliced into the spliced large screen for use. In the next work or life, people can realize the changeable big screen splicing function which can be changed into big and small through a plurality of spliced screens according to different use requirements, such as single-screen split display, single-screen independent display, arbitrary combined display, vertical screen display and the like. The installation of the spliced large screen is as simple as building blocks, and the use and installation of single or spliced screens are very simple. The system has the characteristics of super long service life, large visual angle, high resolution, low failure rate and the like, and is widely applied to the fields of traffic, finance, military, education, advertisement and the like.
At present, a traditional large spliced screen is mainly formed by splicing a plurality of display units, and the whole large spliced screen is formed by connecting the display units in series through network cables. The video data are sent to the large spliced screen through the video sending card, and after each display unit in the large spliced screen receives the video data of the display unit through the network cable, the rest video data are transmitted to the next display unit through the network cable, so that the display of the whole spliced screen is completed.
However, since video data needs to be transmitted between the display units of the traditional spliced large screen through network cables, the circuits are more and complicated when the large screen is spliced, and the circuits are mixed and inserted when the large screen is installed; moreover, because the loss during network cable transmission and the loss of the interface are large, the transmission is easy to be interfered, the waterproof performance is poor, and the like, and the display quality is also seriously influenced.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a display unit, a tiled display device and a tiled display system. The technical problem to be solved by the invention is realized by the following technical scheme:
an embodiment of the present invention provides a display unit, including: the device comprises a first wireless transmission module, a receiving card, a display screen and a second wireless transmission module; wherein the content of the first and second substances,
the first transmission module is used for receiving first video data;
the receiving card is connected with the first wireless transmission module, is used for acquiring display video data and second video data according to the first video data, and is also used for providing power for the first wireless transmission module, the second wireless transmission module and the display screen;
the display screen is connected with the receiving card and is used for displaying video according to the display video data;
the second wireless transmission module is connected with the receiving card and used for receiving and sending the second video data.
In an embodiment of the present invention, the first wireless transmission module receives the first video data by way of very high frequency wireless transmission;
and the second wireless transmission modules transmit the second video data in an extremely high frequency wireless transmission mode.
In one embodiment of the present invention, the receiving card includes: the interface comprises a power interface, an interface, an HDMI interface and an Ethernet interface.
In an embodiment of the present invention, the number of the HDMI interface and the Ethernet interface is at least 2.
Another embodiment of the present invention provides a tiled display device, including a plurality of the above display units; wherein the content of the first and second substances,
the current display unit is connected with a second wireless transmission module of the upper-level display unit through the first wireless transmission module;
the current display unit is connected with a first transmission module of a next-level display unit through the second wireless transmission module;
the receiving card of the display unit is connected with the receiving card of the display unit at the upper stage and the receiving card of the display unit at the lower stage through a power line.
In an embodiment of the present invention, a distance between a first wireless transmission module of a current display unit and a second transmission module of a previous display unit is: the vertical distance is 0-4 cm or the horizontal distance is 0-0.5 cm;
the distance between the second wireless transmission module of the current display unit and the first transmission module of the next-level display unit is as follows: the vertical distance is 0-4 cm or the horizontal distance is 0-0.5 cm.
Another embodiment of the present invention provides a tiled display system, including the above tiled display device, the tiled display system further including: a video source, a transmitting card; wherein the content of the first and second substances,
the video source is used for sending video source data;
the sending card is connected with the video source and used for receiving the video source data;
the splicing display device is connected with a power supply and the sending card and is used for displaying videos according to the video source data.
Compared with the prior art, the invention has the beneficial effects that:
1) the display unit receives or sends video data through the first wireless transmission module and the second wireless transmission module in a wireless transmission mode, so that multiple and messy lines caused by wired transmission are avoided; meanwhile, the display units adopt an extremely high frequency wireless transmission mode, so that transmission loss and interference are reduced, and meanwhile, the waterproof effect is better.
Drawings
Fig. 1 is a schematic structural diagram of a display unit according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a tiled display device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a tiled display system according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the embodiments of the present invention are not limited thereto.
Example one
Referring to fig. 1, fig. 2 and fig. 3, fig. 1 is a schematic structural diagram of a display unit according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of a tiled display device according to an embodiment of the present invention; fig. 3 is a schematic structural diagram of a tiled display system according to an embodiment of the present invention.
As shown in fig. 1, a display unit includes: the device comprises a first wireless transmission module, a receiving card, a display screen and a second wireless transmission module; wherein the content of the first and second substances,
the first transmission module is used for receiving first video data;
the receiving card is connected with the first wireless transmission module, is used for acquiring display video data and second video data according to the first video data, and is also used for providing power for the first wireless transmission module, the second wireless transmission module and the display screen;
the display screen is connected with the receiving card and is used for displaying video according to the display video data;
the second wireless transmission module is connected with the receiving card and used for receiving and sending second video data.
Specifically, the receiving card supplies power to the first wireless transmission module, the receiving card, the display screen and the second wireless transmission module of the display unit through being connected with a power supply, so that the display unit can work normally.
Specifically, after receiving the first video data, the first transmission module transmits the first video data to the receiving card. The receiving card parses the first video data into display video data and second video data according to the ID number of the receiving card. The receiving card sends the display video data to the display screen, and the display screen analyzes the display video data and then plays the video; meanwhile, the receiving card sends the second video data to the second wireless transmission module, the second wireless transmission module sends the second video data out of the display unit, and preferably, the second wireless transmission module sends the second video data to the next-stage display unit.
Furthermore, the first wireless transmission module, the receiving card and the second wireless transmission module are all positioned on the back of the display screen; wherein the content of the first and second substances,
preferably, the first wireless transmission module and the second transmission module are located on two non-adjacent sides of the display screen.
Specifically, the front side of the display screen is used for video playing, and the back side of the display screen is provided with a first wireless transmission module, a receiving card and a second wireless transmission module. The second wireless transmission module is positioned on any one of the other three edges of the display screen, the sending surface of the second wireless transmission module is flush with the edge of the display screen, and the display card is positioned in the center of the back surface.
Preferably, the display screen is a liquid crystal display screen.
Further, the first wireless transmission module receives the first video data in an extremely high frequency wireless transmission mode; the second wireless transmission modules transmit second video data in an extremely high frequency wireless transmission mode.
Specifically, the first wireless transmission module and the second wireless transmission module replace a traditional network cable connection mode, and the principle is that an extremely high frequency EHF technology is adopted, the frequency band range is 30-300 GHz and is also called millimeter waves, and short-distance wireless broadband data lossless transmission is achieved through the core technology.
Further, the receiving card includes: the interface comprises a power interface, an interface, an HDMI interface and an Ethernet interface.
Preferably, the receiving card comprises two power interfaces, namely a first power interface and a second power interface. Specifically, the first power interface is connected with a primary power supply and used for supplying power to the display unit; the second power interface is connected with the first power interface and the next-stage electric equipment and can be used as a power supply of the next-stage electric equipment.
Preferably, the interface may be connected to a configuration host, and configured to perform data configuration on the display unit.
Preferably, the HDMI interface is at least 2. The HDMI interface is used for connecting the video source through an HDMI line, or the receiving card is connected with the first wireless transmission module and the second wireless transmission module through the HDMI line by utilizing the HDMI interface.
Preferably, the number of the Ethernet interfaces is at least two, and the receiving card can use the Ethernet interfaces to connect the first wireless transmission module and the second wireless transmission module through the network cable.
A tiled display device comprises a plurality of the display units; wherein the content of the first and second substances,
the current display unit is connected with a second wireless transmission module of the upper-level display unit through a first wireless transmission module;
the current display unit is connected with the first transmission module of the next-level display unit through the second wireless transmission module;
the receiving card of the current display unit is connected with the receiving card of the upper-level display unit and the receiving card of the lower-level display unit through a power line.
Preferably, the first wireless transmission module and the second wireless transmission module both adopt a wireless transmission mode, and can transparently transmit data without a protocol.
Specifically, the tiled display device includes a plurality of the above display units, and this display unit connects the second wireless transmission module of the upper-level display unit through the first wireless transmission module, wherein, the distance between the first wireless transmission module of this display unit and the second transmission module of the upper-level display unit is: the horizontal position distance is 0-4 cm under the condition that the horizontal position deviation is 0 or 0-0.5 cm under the condition that the vertical position deviation is 0. Within the distance, the first wireless transmission module of the display unit and the second transmission module of the previous display unit adopt a wireless transmission mode, so that lossless transmission can be achieved, the speed can reach 12Gb/s at most, and the display unit has the advantages of short transmission distance and high speed, so that the display unit has strong anti-interference capability and small radiation.
The display unit is connected with the first transmission module of the next-level display unit through the second wireless transmission module; the distance between the second wireless transmission module of the display unit and the first transmission module of the next stage of the display unit is as follows: the horizontal position distance is 0-4 cm under the condition that the horizontal position deviation is 0 or 0-0.5 cm under the condition that the vertical position deviation is 0. Within the distance, the second wireless transmission module of the display unit and the first transmission module of the next-stage display unit adopt a wireless transmission mode, so that lossless transmission can be achieved, the speed can reach 12Gb/s at most, and the display unit has the advantages of short transmission distance and high speed, so that the display unit has strong anti-jamming capability and small radiation.
Specifically, the receiving card of the display unit is connected with the receiving card of the upper-level display unit through a power line and used for supplying power to the display unit; meanwhile, the receiving card of the display unit is connected with the receiving card of the next-level display unit through a power line and used for serving as a power supply for the next-level display unit.
As shown in fig. 2, a tiled display device includes m rows and n columns of display units, where m and n are integers greater than or equal to 1. The display units of the tiled display device are fixedly tiled, wherein the sending surface of the second wireless transmission module of the display unit at the upper level is in close-distance non-contact with the receiving surface of the first wireless transmission module of the display unit at the current level, second video data are transmitted to the display unit at the current level in a wireless mode in a non-protocol mode, and the process is repeated until the second video data are transmitted to the mn-th display unit.
Specifically, the first display unit inputs first video data through a network cable by using an Ethernet interface of the receiving card, the display card analyzes and processes the video data and then acquires display video data and second video data, wherein the display video data is played through the display unit, the second video data is transmitted to the second wireless transmission module, the second wireless transmission module transmits the second video data to the second display unit, and the second video data is used as the first video data of the second display unit.
The utility model provides a tiled display system, tiled display system includes foretell tiled display device, and tiled display system still includes: a video source, a transmitting card; wherein the content of the first and second substances,
the video source is used for sending video source data;
the sending card is connected with a video source and used for receiving video source data;
the splicing display device is connected with a power supply and a sending card; for displaying video from the video source data.
Specifically, as shown in fig. 3, the video source sends video data to the sending card through a data line or a network cable; information such as the ID numbers of the receiving cards of all the display units in the tiled display device is recorded on the transmitting card. After the sending card receives the video data, the video data are processed according to the ID numbers of all the display unit receiving cards, the video data blocks corresponding to the display units are analyzed and processed, ID information is loaded to each data block, and then the processed video data are sent to a first display unit of the splicing display device, wherein the processed video data are first video data of the first display unit.
The display unit receives or sends video data through the first wireless transmission module and the second wireless transmission module in a wireless transmission mode, so that multiple and messy lines caused by wired transmission are avoided; meanwhile, the display units adopt an extremely high frequency wireless transmission mode, so that transmission loss and interference are reduced, and meanwhile, the waterproof effect is better.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (6)
1. A display unit, comprising: the device comprises a first wireless transmission module, a receiving card, a display screen and a second wireless transmission module; wherein the content of the first and second substances,
the first wireless transmission module is used for receiving first video data in an extremely high frequency wireless transmission mode;
the receiving card is connected with the first wireless transmission module and used for analyzing first video data into display video data and second video data according to the ID number of the receiving card, sending the display video data to a display screen, sending the second video data to the second wireless transmission module and providing power for the first wireless transmission module, the second wireless transmission module and the display screen;
the display screen is connected with the receiving card and is used for displaying video according to the display video data;
the second wireless transmission module is connected with the receiving card and used for receiving the second video data and sending the second video data to the next-stage display unit through the display unit in an extremely high frequency wireless transmission mode.
2. The display unit of claim 1, wherein the receiving card comprises: the interface comprises a power interface, an interface, an HDMI interface and an Ethernet interface.
3. The display unit according to claim 2, wherein the HDMI interface and the Ethernet interface are each at least 2.
4. A tiled display arrangement, characterized in that it comprises a plurality of display units according to any of claims 1 to 3; wherein the content of the first and second substances,
the current display unit is connected with a second wireless transmission module of the upper-level display unit through the first wireless transmission module;
the current display unit is connected with a first transmission module of a next-level display unit through the second wireless transmission module;
the receiving card of the display unit is connected with the receiving card of the display unit at the upper stage and the receiving card of the display unit at the lower stage through a power line.
5. The tiled display apparatus according to claim 4, wherein the distance between the first wireless transmission module of the current display unit and the second transmission module of the previous display unit is: the vertical distance is 0-4 cm or the horizontal distance is 0-0.5 cm;
the distance between the second wireless transmission module of the current display unit and the first transmission module of the next-level display unit is as follows: the vertical distance is 0-4 cm or the horizontal distance is 0-0.5 cm.
6. A tiled display system comprising the tiled display apparatus of claim 4 or 5, further comprising: a video source, a transmitting card; wherein the content of the first and second substances,
the video source is used for sending video source data;
the sending card is connected with the video source and used for receiving the video source data;
the splicing display device is connected with a power supply and the sending card and is used for displaying videos according to the video source data.
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| CN201811047280.6A CN109358828B (en) | 2018-09-09 | 2018-09-09 | Display unit, splicing display device and splicing display system |
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| CN201811047280.6A CN109358828B (en) | 2018-09-09 | 2018-09-09 | Display unit, splicing display device and splicing display system |
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| CN112398499B (en) * | 2019-07-31 | 2022-06-17 | 西安诺瓦星云科技股份有限公司 | Wireless transceiver, display box and circuit assembly |
| CN112396974A (en) * | 2019-07-31 | 2021-02-23 | 西安诺瓦星云科技股份有限公司 | LED display screen, LED display system and display box |
| CN112398500B (en) * | 2019-07-31 | 2022-10-21 | 西安诺瓦星云科技股份有限公司 | Wireless transceiver and LED display screen |
| CN112331129A (en) * | 2019-07-31 | 2021-02-05 | 西安诺瓦星云科技股份有限公司 | LED display screen and LED display system |
| CN112311413B (en) * | 2019-07-31 | 2023-02-17 | 西安诺瓦星云科技股份有限公司 | Wireless transceiver and LED display screen |
| CN112309314A (en) * | 2019-07-31 | 2021-02-02 | 西安诺瓦星云科技股份有限公司 | LED display screen, LED display system and display box |
| CN112397011B (en) * | 2019-07-31 | 2022-05-20 | 西安诺瓦星云科技股份有限公司 | LED display screen, LED display system and display box |
| CN112397013A (en) * | 2019-07-31 | 2021-02-23 | 西安诺瓦星云科技股份有限公司 | LED display screen, nuclear core plate and display box |
| CN112652264A (en) * | 2019-10-12 | 2021-04-13 | 西安诺瓦星云科技股份有限公司 | LED module and display box |
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