CN111930327A - LED mirror screen display method and device - Google Patents
LED mirror screen display method and device Download PDFInfo
- Publication number
- CN111930327A CN111930327A CN202010729600.7A CN202010729600A CN111930327A CN 111930327 A CN111930327 A CN 111930327A CN 202010729600 A CN202010729600 A CN 202010729600A CN 111930327 A CN111930327 A CN 111930327A
- Authority
- CN
- China
- Prior art keywords
- led
- asynchronous full
- color controller
- screen
- asynchronous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
-
- 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
-
- 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 provides a display method and a display device of an LED mirror screen, wherein the device comprises the following components: the LED display screen comprises a plurality of asynchronous full-color controllers and a plurality of LED screens which are connected in series, wherein the asynchronous full-color controllers and the LED screens are alternately arranged one by one. Each asynchronous full-color controller is provided with three network ports, including a computer special network port and two common network ports, wherein the computer special network port is connected with a computer terminal. Each of the LED screens includes a plurality of receiving cards connected in series. The mirror screen effect can be realized without a switch and a plurality of computers, so that the scheme cost is saved; the invention does not need to consider the problem of synchronous control of a plurality of computers, because parameters and commands can be directly forwarded; the invention has no asynchronous condition, almost has no delay forwarding, and has higher synchronism than the combined control of a plurality of computers.
Description
Technical Field
The invention relates to the technical field of LED asynchronous full-color control, in particular to a display method and device of an LED mirror screen.
Background
As shown in fig. 1, the asynchronous control system of the existing LED display screen is generally composed of an asynchronous full-color controller and an LED screen. The sending device mainly refers to an asynchronous full-color controller, and the display data of the asynchronous full-color controller mainly comes from a computer or a video processor, an SD card, a USB and the like which comprise sending functions. The asynchronous full-color controller is mainly responsible for decoding an input video source and issuing the decoded video source to the receiving card. The LED screen is mainly composed of an LED screen and a receiving card, as shown in fig. 2. The receiving card is mainly responsible for receiving command parameters and display data sent by the sending equipment and outputting the display data to the LED driving chip according to the time sequence of the display screen, so that the display of the picture is completed.
The LED screen can be spliced with a plurality of receiving cards according to the area size, and the connection mode is shown in figure 3. Each receiving card is provided with two network ports which are respectively a transmitting port and a receiving port, and the receiving cards in the screen are connected in series by using network cables.
In actual projects, the asynchronous full-color controller and the receiving card are both arranged in a box body of the LED screen, and only a network port is arranged outside. In order to improve the flexibility of the project, when different screens display respective programs, the asynchronous full-color controller can be realized by receiving a receiving card; when it is desired to have several or all screens simultaneously display the same program (mirror-like display), a computer and switch may need to be added without removing the LED box. We call this function the mirror screen function. Fig. 4 is a schematic structural diagram of a display method and device for an LED mirror screen in the prior art.
The conventional mirror screen display method and apparatus of fig. 4 have the following disadvantages:
1. on the basis of the original scheme, each receiving card can only control a limited display area due to the limitation of bandwidth and processing capacity. This is far from sufficient for commercial LED screen requirements.
2. If a plurality of asynchronous full-color controllers are adopted, the scheme that each asynchronous full-color controller controls a plurality of receiving cards is faced to increase a computer or a switch, and the control cost is greatly improved.
3. The number of mirror screens is limited by the number of available network ports or computers of the switch.
4. The scheme of the computer and the switch is strictly in the sense that absolute synchronous playing cannot be achieved.
Disclosure of Invention
The purpose of the invention is realized by the following technical scheme.
In order to solve the problem, the invention adds an intelligent output preceding stage display data function in the asynchronous full-color controller, and the function realizes that a single computer controls a plurality of asynchronous full-color controllers, thereby realizing the function of synchronous playing of a plurality of screens.
According to a first aspect of the present invention, there is provided an LED mirror screen display device comprising:
the LED display screen comprises a plurality of asynchronous full-color controllers and a plurality of LED screens which are connected in series, wherein the asynchronous full-color controllers and the LED screens are alternately arranged one by one.
Furthermore, each asynchronous full-color controller is provided with three network ports, including a computer-dedicated network port and two common network ports, wherein the computer-dedicated network port is connected with a computer terminal.
Further, each of the LED screens includes a plurality of receiving cards connected in series;
one of the two common network ports of the first asynchronous full-color controller is connected with the first receiving card of the LED screen connected in series after the first asynchronous full-color controller, the last receiving card of the LED screen is connected with one of the two common network ports of the second asynchronous full-color controller, the other one of the two common network ports of the second asynchronous full-color controller is connected with the first receiving card of the LED screen connected in series after the second asynchronous full-color controller, and so on.
According to a second aspect of the present invention, there is provided an LED mirror screen display method, which uses the LED mirror screen display device of the first aspect to realize display, including the following steps:
after the first asynchronous full-color controller receives display data sent by a computer terminal through a special network port of the computer, the display data is sent to each receiving card of the LED screen connected in series behind the first asynchronous full-color controller through one of two common network ports;
after receiving the display data from the first asynchronous full-color controller, each receiving card sends the display data to an LED screen connected in series behind the first asynchronous full-color controller through a flat cable for display, and meanwhile, the last receiving card forwards the display data to one of two common network ports of the second asynchronous full-color controller;
and the other of the two common network ports of the second asynchronous full-color controller forwards display data to each receiving card of the LED screen connected in series behind the second asynchronous full-color controller, and the like.
The invention has the advantages that: the mirror screen effect can be realized without a switch or a plurality of computers, so that the scheme cost is saved; the invention does not need to consider the problem of synchronous control of a plurality of computers, because parameters and commands can be directly forwarded, and the forwarding mechanism is the same as the display data forwarding mechanism; the invention has no asynchronous condition, almost has no delay forwarding, and has higher synchronism than the combined control of a plurality of computers.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic diagram of an asynchronous control system of a conventional LED display screen;
FIG. 2 is a schematic diagram of a conventional LED screen and receiving card configuration;
FIG. 3 is a schematic diagram of a prior art multiple receiver card connection configuration;
FIG. 4 is a schematic structural diagram of a prior art LED mirror screen display method and device;
FIG. 5 is a schematic diagram of a LED mirror screen display device according to the present invention;
FIG. 6 is a schematic view showing a detailed connection structure of an LED mirror screen display device according to the present invention;
FIG. 7 is a flow chart of a method for displaying an LED mirror screen according to the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 5, the LED mirror screen display device of the present invention includes a plurality of asynchronous full-color controllers and a plurality of LED screens connected in series, wherein the asynchronous full-color controllers and the plurality of LED screens are alternately arranged one by one. Namely, an LED screen is connected between every two asynchronous full-color controllers in series, and an asynchronous full-color controller is connected between every two LED screens in series. Therefore, the asynchronous full-color controller realizes the function of a mirror screen through the cascade connection of the LED screens, and a computer and an exchanger are not required to be added in the scheme.
FIG. 6 is a schematic view showing a detailed connection structure of an LED mirror screen display device according to the present invention; each asynchronous full-color controller is provided with three network ports, including a computer-dedicated network port and two common network ports (a network port 1 and a network port 2), wherein the computer-dedicated network port is used for receiving display data and command parameters sent by a computer. Each LED screen includes a plurality of receiving cards connected in series. The first asynchronous full-color controller receives the display data sent by the computer through the special network port of the computer, and then sends the display data to the network port 1 of the receiving card through the network port 2. Then the receiving card receives the display data from the asynchronous full-color controller, and sends the display data to the LED screen for display through the flat cable, and at the same time, the network port 1 of the next receiving card is forwarded through the network port 2 of the receiving card, and after the receiving card is connected in series, the network port 2 of the last receiving card is forwarded to the network port 1 of the asynchronous full-color controller of the second level.
In addition, the network port 1 and the network port 2 of the asynchronous full-color controller or the receiving card can receive and transmit, and adaptive transceiving configuration can be achieved. The connection from the LED screen of the upper level in FIG. 6 is connected to the net port 2 of the asynchronous full-color controller of the next level instead of the net port 1. When the network port 1 of the asynchronous full-color controller receives the display data, the network port 1 is defaulted as a receiving end, and the network port 2 is used as a sending end to forward the display data; otherwise, when the network port 2 receives the display data, the network port 1 forwards the display data.
As shown in fig. 7, a flow chart of a method for displaying an LED mirror screen according to the present invention is shown. Wherein, the gray frame is internally provided with control logic of an asynchronous full-color controller, and the control logic is sequenced from top to bottom according to the sequence of ABCD …; the receiving cards corresponding to the asynchronous full-color controller are sorted according to A (0, 1 and 2 … …), wherein A is the serial number of the asynchronous full-color controller.
If the first-level asynchronous full-color controller A receives new display data from a computer through a special network port of the computer, the new display data is transmitted, if the new display data does not exist, the display data in the SD card or the USB is automatically loaded, and then the display data can be sent to the receiving card A (0) through the network port 1 or 2 after being cached by the SDRAM.
And the receiving card A (0) receives the display data, displays the LED according to the parameters of the receiving card A, and forwards the display data to the next receiving card.
The next receiving card A (1) transfers to A (2) while displaying, and so on, until the last receiving card A (n), A (n) transfers while displaying, but A (n) transfers to the next asynchronous full-color controller B.
The asynchronous full-color controller B judges whether the network port 1 receives data, if so, the asynchronous full-color controller B directly forwards the data to the receiving card B (0) through the network port 2, if the network port 1 does not receive display data, then the asynchronous full-color controller B forwards the data to the receiving card B (0) through the network port 1 after the network port 2 receives the display data, and the receiving card B (0) reaches the last receiving card of the last-stage asynchronous full-color controller according to the flow. And if the network ports 1 and 2 of the controller B do not receive the display data, the asynchronous full-color controller B stops the function of the mirror screen, loads the display data of the asynchronous full-color controller B and sends the display data to the receiving card.
The mirror screen effect can be realized without a switch and a plurality of computers, so that the scheme cost is saved; the invention does not need to consider the problem of synchronous control of a plurality of computers, because parameters and commands can be directly forwarded; the invention has no asynchronous condition, almost has no delay forwarding, and has higher synchronism than the combined control of a plurality of computers.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (4)
1. An LED mirror screen display device, comprising:
the LED display screen comprises a plurality of asynchronous full-color controllers and a plurality of LED screens which are connected in series, wherein the asynchronous full-color controllers and the LED screens are alternately arranged one by one.
2. An LED mirror screen display device according to claim 1,
each asynchronous full-color controller is provided with three network ports, including a computer special network port and two common network ports, wherein the computer special network port is connected with a computer terminal.
3. An LED mirror screen display device according to claim 2,
each LED screen comprises a plurality of receiving cards connected in series;
one of the two common network ports of the first asynchronous full-color controller is connected with the first receiving card of the LED screen connected in series after the first asynchronous full-color controller, the last receiving card of the LED screen is connected with one of the two common network ports of the second asynchronous full-color controller, the other one of the two common network ports of the second asynchronous full-color controller is connected with the first receiving card of the LED screen connected in series after the second asynchronous full-color controller, and so on.
4. A display method of an LED mirror screen is characterized in that,
use of the LED mirror screen display device of any one of claims 1-3 to effect a display, comprising the steps of:
after the first asynchronous full-color controller receives display data sent by a computer terminal through a special network port of the computer, the display data is sent to each receiving card of the LED screen connected in series behind the first asynchronous full-color controller through one of two common network ports;
after receiving the display data from the first asynchronous full-color controller, each receiving card sends the display data to an LED screen connected in series behind the first asynchronous full-color controller through a flat cable for display, and meanwhile, the last receiving card forwards the display data to one of two common network ports of the second asynchronous full-color controller;
and the other of the two common network ports of the second asynchronous full-color controller forwards display data to each receiving card of the LED screen connected in series behind the second asynchronous full-color controller, and the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010729600.7A CN111930327A (en) | 2020-07-27 | 2020-07-27 | LED mirror screen display method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010729600.7A CN111930327A (en) | 2020-07-27 | 2020-07-27 | LED mirror screen display method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111930327A true CN111930327A (en) | 2020-11-13 |
Family
ID=73316073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010729600.7A Pending CN111930327A (en) | 2020-07-27 | 2020-07-27 | LED mirror screen display method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111930327A (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1766986A (en) * | 2005-09-21 | 2006-05-03 | 康佳集团股份有限公司 | Sequent LED scroll display screen and control method for realizing continuous scroll display |
| CN2831320Y (en) * | 2005-09-21 | 2006-10-25 | 康佳集团股份有限公司 | Continuous LED circulating-rolling displaying screen |
| CN201048032Y (en) * | 2006-12-29 | 2008-04-16 | 深圳市奥拓电子有限公司 | LED video control system |
| CN101183510A (en) * | 2007-12-21 | 2008-05-21 | 深圳市奥拓电子有限公司 | LED color display control method and system |
| US20080284675A1 (en) * | 2007-05-14 | 2008-11-20 | Christie Digital Systems Canada, Inc. | Configurable imaging system |
| CN103065587A (en) * | 2012-12-28 | 2013-04-24 | 富顺光电科技股份有限公司 | Transmitting-card-free low-cost light emitting diode (LED) synchronous display controlling system |
| US20160275835A1 (en) * | 2013-09-26 | 2016-09-22 | Xi'an Novastar Tech Co., Ltd. | Led display unit board, led display screen control card and led display screen system |
| CN106297650A (en) * | 2016-08-16 | 2017-01-04 | 深圳市灵星雨科技开发有限公司 | A kind of New LED intelligence control system |
| US20170024179A1 (en) * | 2014-03-13 | 2017-01-26 | Nec Display Solutions, Ltd. | Display device, multi-display system, and id determination method for display device |
| CN108279665A (en) * | 2018-04-11 | 2018-07-13 | 福建日顺欣电子科技有限公司 | LED display control system goes offline alarm protecting apparatus |
| CN109360528A (en) * | 2018-12-21 | 2019-02-19 | 蒲旖 | A kind of LED advertisement machine control card and its control system |
| US20190377535A1 (en) * | 2018-06-07 | 2019-12-12 | Cirrus Systems, Inc. | Modular display system with ethernet connection and control |
| CN110633063A (en) * | 2019-09-23 | 2019-12-31 | 东莞阿尔泰显示技术有限公司 | Control framework of all-in-one LED display screen |
| KR102095164B1 (en) * | 2019-10-31 | 2020-03-30 | 주식회사 애즈원 | Electronic display system with modified ethernet network for a plurality of display units |
| US20200126514A1 (en) * | 2018-10-18 | 2020-04-23 | Samsung Electronics Co., Ltd. | System with display apparatuses and method of controlling the same |
| CN211016457U (en) * | 2019-12-16 | 2020-07-14 | 西安诺瓦星云科技股份有限公司 | Display control system and L ED display system |
-
2020
- 2020-07-27 CN CN202010729600.7A patent/CN111930327A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1766986A (en) * | 2005-09-21 | 2006-05-03 | 康佳集团股份有限公司 | Sequent LED scroll display screen and control method for realizing continuous scroll display |
| CN2831320Y (en) * | 2005-09-21 | 2006-10-25 | 康佳集团股份有限公司 | Continuous LED circulating-rolling displaying screen |
| CN201048032Y (en) * | 2006-12-29 | 2008-04-16 | 深圳市奥拓电子有限公司 | LED video control system |
| US20080284675A1 (en) * | 2007-05-14 | 2008-11-20 | Christie Digital Systems Canada, Inc. | Configurable imaging system |
| CN101183510A (en) * | 2007-12-21 | 2008-05-21 | 深圳市奥拓电子有限公司 | LED color display control method and system |
| CN103065587A (en) * | 2012-12-28 | 2013-04-24 | 富顺光电科技股份有限公司 | Transmitting-card-free low-cost light emitting diode (LED) synchronous display controlling system |
| US20160275835A1 (en) * | 2013-09-26 | 2016-09-22 | Xi'an Novastar Tech Co., Ltd. | Led display unit board, led display screen control card and led display screen system |
| US20170024179A1 (en) * | 2014-03-13 | 2017-01-26 | Nec Display Solutions, Ltd. | Display device, multi-display system, and id determination method for display device |
| CN106297650A (en) * | 2016-08-16 | 2017-01-04 | 深圳市灵星雨科技开发有限公司 | A kind of New LED intelligence control system |
| CN108279665A (en) * | 2018-04-11 | 2018-07-13 | 福建日顺欣电子科技有限公司 | LED display control system goes offline alarm protecting apparatus |
| US20190377535A1 (en) * | 2018-06-07 | 2019-12-12 | Cirrus Systems, Inc. | Modular display system with ethernet connection and control |
| US20200126514A1 (en) * | 2018-10-18 | 2020-04-23 | Samsung Electronics Co., Ltd. | System with display apparatuses and method of controlling the same |
| CN109360528A (en) * | 2018-12-21 | 2019-02-19 | 蒲旖 | A kind of LED advertisement machine control card and its control system |
| CN110633063A (en) * | 2019-09-23 | 2019-12-31 | 东莞阿尔泰显示技术有限公司 | Control framework of all-in-one LED display screen |
| KR102095164B1 (en) * | 2019-10-31 | 2020-03-30 | 주식회사 애즈원 | Electronic display system with modified ethernet network for a plurality of display units |
| CN211016457U (en) * | 2019-12-16 | 2020-07-14 | 西安诺瓦星云科技股份有限公司 | Display control system and L ED display system |
Non-Patent Citations (1)
| Title |
|---|
| 胡冰 等: "基于Cyclone IV的新型LED大屏控制系统", 《电子科学技术》, vol. 01, no. 03, pages 312 - 318 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102323877B (en) | SERDES-based video processing system | |
| CN107249107B (en) | Video controller and image processing method and device | |
| CN110569208B (en) | Control circuit, signal control device, signal control method and system | |
| US10733954B2 (en) | Method of processing display data | |
| CN211019016U (en) | Video processing apparatus | |
| CN112601032A (en) | Display system, method and device based on daisy chain connection | |
| CN1351799A (en) | Device for changing channels in a digital television reception system | |
| CN109361935A (en) | Picture stream video transmission method and system | |
| CN116801051A (en) | Image data interface conversion method and device | |
| CN112040195A (en) | Digital centralized control equipment and method | |
| CN111930327A (en) | LED mirror screen display method and device | |
| CN109256084B (en) | Cascade LED display screen control card, control method for realizing cascade connection and HDMI signal processing method | |
| CN107613355B (en) | Processing system for video and video processor | |
| TWI473075B (en) | Input and output matrix image transmission system and application method thereof | |
| CN108877647A (en) | LED control system and LED display device | |
| CN104918024A (en) | Cross-point matrix system and data processing method thereof | |
| CN105611211B (en) | Video format switch and display device | |
| CN217935773U (en) | LED transmitting card | |
| CN108345437B (en) | Signal stream transmission opening and closing method and device | |
| CN117119157B (en) | Multi-picture splicing retransmission method and system for optical fiber video seat | |
| CN215682437U (en) | Signal transmission equipment and system | |
| CN111064908B (en) | Signal transmission method, device, equipment and readable storage medium | |
| CN104427334A (en) | Data processing method, image demonstration method, data processing device and demonstration equipment | |
| CN116741038B (en) | Display screen interface switching circuit, control method thereof and electronic equipment | |
| WO2024098298A1 (en) | Led displaying control method, led display screen, control system therefor, and corresponding assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |