CN206712943U - Display control card and display control program - Google Patents
Display control card and display control program Download PDFInfo
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- CN206712943U CN206712943U CN201720476961.9U CN201720476961U CN206712943U CN 206712943 U CN206712943 U CN 206712943U CN 201720476961 U CN201720476961 U CN 201720476961U CN 206712943 U CN206712943 U CN 206712943U
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Abstract
The utility model embodiment is related to a kind of display control card and a kind of display control program, and the display control card includes：Microprocessor, the PLD for electrically connecting the microprocessor and the external video input interface and video ring outgoing interface for being electrically connected the PLD.
Description
Technical field
Display control technology field is the utility model is related to, more particularly to a kind of display control card and a kind of display control
System.
Background technology
LED display in actual applications, with the progress and development in epoch, the related LED display controls such as open air, interior
Also there is diversified new demand in system regions.With the change of the market demand, traditional LED shows asynchronous control system
Or synchronous control system, the needs of user can not be met.Therefore, current in the market is also badly in need of a kind of new, integrated
Du Genggao LED display control programs meet market needs.
For the demand in terms of current LED display control programs, many users want a kind of more stable, functional integration more
LED display control program products high, more rich, product form is smaller, more attractive, price is less expensive, that is, everybody all phase
Treat the higher product form of cost performance.
For current function phase some bimodulus LED display control program scheme higher to integrated level, although can support
The output display band under output display band load and asynchronous mode under synchronous mode carries, but can't fully meet existing
Market is to product systems stability and the demand of system lower complexity.The problem of summarizing existing bi-mode control system is such as
Under：1) product stability is low, and it is of a relatively high that system environments builds complexity；2) functional integration is low, can not support output display
Redundancy feature；3) systemic-function is not perfect enough, does not support the functions such as picture splicing；And 4) system holistic cost is higher.
Utility model content
Therefore, embodiment of the present utility model proposes a kind of display control card and a kind of display control program, with lifting
Product cost.
Specifically, a kind of display control card that the utility model embodiment proposes, including described in microprocessor and electrical connection
The PLD of microprocessor.In addition, the display control card also includes：External video input interface and video ring go out
Interface, it is electrically connected the PLD.Thus, it is possible to achieve external video input ring goes out function.
In one embodiment of the present utility model, the display control card also includes the first network interface and the second network interface, point
The PLD is not electrically connected；One of first network interface and second network interface are configured to master control output network interface,
And the another one of first network interface and second network interface is configured to redundancy output network interface.Thus, it is possible to achieve redundancy
Backup output.
In one embodiment of the present utility model, the external video input interface and the video ring outgoing interface are
HDMI.
In one embodiment of the present utility model, the display control card also includes infrared circuit, electrically connects institute
State PLD.Consequently, it is possible to it can realize that switchboard operates by infrared remote control.
In one embodiment of the present utility model, the display control card includes being provided with the programmable logic device
Part, the external video input interface and the video ring outgoing interface bottom plate and be provided with the core of the microprocessor
Plate；The core board is fixed on the bottom plate.Consequently, it is possible to by distinguishing core board and bottom plate, it is easy to implement modularization and sets
Meter.
In one embodiment of the present utility model, the bottom plate is additionally provided with double mode switching key, described in electrical connection
PLD.Consequently, it is possible to synchronous mode and asynchronous mode switching can be realized taking human as triggering.
In one embodiment of the present utility model, the core board is additionally provided with USB PHY and network PHY, respectively electricity
The microprocessor is connected, the bottom plate is additionally provided with USB HUB, USB interface and wired network interface；The display control card
Also include radio communication daughter board, be fixed on the bottom plate to cause the core board to be located at the bottom plate and the radio communication
Between daughter board；The radio communication daughter board is provided with double mode WiFi module and mobile communication module, the double mode WiFi moulds
Block electrically connects the network PHY, and the mobile communication module electrically connects the USB HUB；The wired network interface electrical connection
The network PHY, the USB HUB electrically connect the USB PHY, and the USB interface electrically connects the USB HUB.Such as
This one, onboard WiFi AP+Station functions can be supported transmitted wirelessly with to realize mobile phone to it program function and can
To support to import the function of program broadcasting from USB flash disk.
In one embodiment of the present utility model, the bottom plate is additionally provided with SD card interface, 485 interfaces, serial ports, instruction
Lamp interface, IP address reset button, energy supply control module, clock and battery module, microcontroller and COBBAIF；The SD
Card interface, 485 interface, the serial ports, the indicator lamp interface, the IP address reset button and the power supply mould
Block is electrically connected the core board, and the clock and battery module electrically connect the microcontroller, and the microcontroller
Electrically connect the PLD and the energy supply control module；The COBBAIF electrically connects the programmable logic device
Part；The core board is additionally provided with voicefrequency circuit, electrically connects the microprocessor.Consequently, it is possible to it can support to import from SD card
The function that program plays.
In addition, a kind of display control program that the utility model embodiment proposes, including multiple foregoing display control cards, and
Each described display control card carries at least one receive by network interface band and blocked；Wherein, the multiple display control card includes the
One display control card and the second display control card, second display control card the external video input interface connection described in
The video ring outgoing interface of first display control card.
Furthermore a kind of display control program that another embodiment of the utility model proposes, including display control card and at least
One receives card；The display control card includes microprocessor and electrically connects the PLD of the microprocessor.Institute
Stating display control card also includes the first network interface and the second network interface, is electrically connected the PLD；First net
One of mouth and second network interface are configured to master control output network interface, and the another one of first network interface and second network interface is matched somebody with somebody
It is set to redundancy output network interface；At least one reception card is connected electrically between first network interface and second network interface with shape
Connected into closed loop.
A technical scheme in above-mentioned technical proposal has the following advantages that or beneficial effect：A) single display control card is supported
Network interface redundancy backup output function；B) video ring is supported to go out such as HDMI rings and go out function；C) switching of synchronous/asynchronous double mode is supported
Function；D) onboard WiFi AP+Station functions are supported；E) operation of infrared remote control switch screen is supported；And f) reduce system
Complexity, the application environment of simplified LED display control programs are built.
Brief description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
The accompanying drawing used is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present utility model
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of configuration diagram for display control program that the utility model embodiment proposes；
Fig. 2 is the configuration diagram for another display control program that the utility model embodiment proposes；
Fig. 3 is the basic framework schematic diagram for the display control card that can be applied to Fig. 1 and Fig. 2；
Fig. 4 is the particular hardware structural representation of the display control card with framework shown in Fig. 3.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
The utility model embodiment is to be based on extending video ring on the basis of bimodulus LED display control programs and going out such as HDMI
The function of LOOP functions (namely HDMI rings go out function) and network interface output redundancy, while the work(such as switchboard control can also be supported
Energy；Most of user's requests of current LED display control programs industry are disclosure satisfy that, and product cost is of a relatively high.
Specifically, Fig. 1 is a kind of configuration diagram for display control program that the utility model embodiment proposes.Fig. 1 institutes
A kind of application mode of LED display outputs redundancy backup scheme is shown as, display control card is synchronous/asynchronous bimodulus LED display controls
Fabrication, it can receive external video source such as HDMI inputs and (namely main with double gigabit network interfaces outputs in synchronous mode
Control the output of gigabit network interface and the output of redundancy gigabit network interface)；The reception card that each band carries LED box is connected to display in cascaded fashion
Connected between the master control gigabit network interface and redundancy gigabit network interface of control card with forming closed loop.Consequently, it is possible in master control gigabit network interface
Go offline or in the case that netting twine loosens, redundancy (backup) gigabit network interface also can automatic display output, and user not can be appreciated that
The exception of any network interface output switching.Herein it is noted that be not limited in practical application gigabit network interface or its
The Ethernet interface of his type.
Fig. 2 is the configuration diagram for another display control program that the utility model embodiment proposes.Fig. 2 show one
Kind goes out a kind of application mode of function realization based on HDMI rings, and display control card is synchronous/asynchronous bimodulus LED display control cards,
It can receive external video source such as HDMI inputs in synchronous mode and ring goes out；It can pass through between multiple display control cards
HDMI is inputted and ring outgoing interface cascades and can carry the reception card cascaded by respective gigabit network interface band to control LED casees respectively
Body carries out image and shown.Consequently, it is possible to it can realize that a HDMI video source input afterwards can be again by display control card
Output to cascade display control card or output connects PC, so as to realize that HDMI rings go out function.It is, of course, understood that this
Place is not limited to HDMI inputs and ring outgoing interface or the input of other digital videos and ring outgoing interface, such as DVI, SDI
Deng.In addition, for single display control card, the redundancy backup scheme shown in Fig. 1 can also be used, also will be with load LED box
Each reception card level be associated between despotic network mouth and Redundant Network Port with formed closed loop connection.
Referring to Fig. 3, it is the basic framework schematic diagram for the display control card that can be applied to Fig. 1 and Fig. 2.It is as shown in figure 3, aobvious
Show that control card includes microprocessor, PLD, external video input interface, video ring outgoing interface and two road networks
Mouthful.Wherein, microprocessor is, for example, arm processor；PLD is, for example, FPGA, and it for example passes through serial ports and video
Interface connects microprocessor；External video input interface, video ring outgoing interface and two-way network interface are electrically connected FPGA
One of device, two-way network interface can be configured to master control output network interface and another one can be configured to redundancy output network interface, and show
Control card work can receive outer video signal such as HDMI signals by external video input interface simultaneously in synchronous mode
Output display band load is carried out by network interface and can be gone out vision signal such as HDMI hoops to it by video ring outgoing interface
His display control card or PC.
Referring to Fig. 4, it is the particular hardware structural representation of the display control card with framework shown in Fig. 3.Such as Fig. 4 institutes
Show, display control card includes：Bottom plate 41, core board 43 and radio communication daughter board 45；Typically, core board 43 and wireless communication
The stacking of plate 45 is disposed on bottom plate 41 and core board 43 is between bottom plate 41 and radio communication daughter board 45.
More specifically, PLD 411, external video input interface 412, memory module are provided with bottom plate 41
413rd, video ring outgoing interface 414, two-way network interface 415, COBBAIF 416, double mode switching key 417, infrared circuit
418th, microcontroller 419, clock and battery module 420, energy supply control module 421, IP address replacement button 422, indicator lamp connect
Mouth 423, serial ports 424,485 interfaces 425, SD card interface 426, wired network interface 427, USB HUB 428 and USB interface
429.Microprocessor 431, USB PHY 432, network PHY 433, voicefrequency circuit 434, crystal oscillating circuit are provided with core board 43
435th, PMIC (power management chip) 436 and memory module 437.Be provided with radio communication daughter board 45 WiFi module 451 with
And mobile communication module 453.
Wherein, PLD 411 is, for example, FPGA, and it connects typically via serial ports and video interface such as RGB
Microprocessor 431 on mouth electrical connection core board 43.Consequently, it is possible to can between microprocessor 431 and PLD 411
With by serial ports interactive instruction data, and image data can be directly output to PLD by rgb interface
411。
External video input interface 412 and video ring outgoing interface 414 are electrically connected PLD 411, so as to
Allow the display control card of the present embodiment to support user to select the preferential functions of external video such as HDMI, inserted in HDMI wire
It is upper and when correctly identifying, display control card output display be synchronous mode output picture, disconnected in HDMI wire or can not
During identification, display control card can automatically switch to asynchronous mode and carry out display output；When HDMI wire is plugged again and can from
The dynamic synchronous mode that switches back into carries out display output, can so avoid because HDMI wire plugs or contacted the bad blank screen brought
Problem.Herein, external video input interface 412 and video ring outgoing interface 414 are not limited to HDMI or other numbers
Word video interface；Further, since the setting of external video input interface 412 and video ring outgoing interface 414 so that the present embodiment
Display control card supports video input ring to go out function, so as to realize that the data of external video input source are transferred into other sets
Standby upper output display.
Memory module 413 electrically connects PLD 411, and it is, for example, dynamic RAM as DDR2 etc..
Two-way network interface 415 electrically connects PLD 411, and 2 can be supported so as to the display control card of the present embodiment
Individual gigabit network interface display output, a gigabit network interface are used for the data display output of master control network interface, and a Redundant Network Port is used for standby
Part output display.User can send configuration information and the reception of LED display body by master control network interface or Redundant Network Port
The configuration information of card.
COBBAIF 416 electrically connects PLD 411, and it is used to connect audio amplifier as audio output port.
Double mode switching key 417 electrically connects PLD 411 and used for artificial triggering, so as to the present embodiment
Display control card is switchably operated in synchronous mode or asynchronous mode.It is, of course, understood that the display control of the present embodiment
The pattern switching of fabrication is not limited to switch over by triggering double mode switching key 417, can also pass through upper computer software
Control instruction is sent to switch over.
Infrared circuit 418 electrically connects PLD 411, consequently, it is possible to which user can pass through infrared equipment
Such as IR remote controller realizes the display screen body of the display control card to being controlled by the present embodiment (such as LED display body)
The control of on off state, when having detected infrared signal, just display screen body is carried out to close screen state output, detected again red
State output of spreading its tail is carried out to display screen body again after external signal.
Microcontroller 419 is, for example, single-chip microcomputer (MCU), and it electrically connects PLD 411, is primarily used to control
Power supply, storage time is obtained to the microprocessor 431 on core board 43 from clock and battery module 420, detect some temperature, wet
The functions such as the detection of degree, voltage and the door switch of alarm and LED box；
Clock and battery module 420 electrically connect microcontroller 419, and it is primarily to keep system time and Network Synchronization
Use, the problem of time loses after system cut-off can be avoided.
Energy supply control module 421 electrically connects microcontroller 419 and core board 43, mainly controls electricity by microcontroller 419
Source powers to microprocessor 431, prevents that the electricity on of microprocessor 431 is breakdown, generation of situations such as burning out.
IP address resets button 422 and electrically connects core board 43, and it is used to reset the IP address of display control card to recover
Factory is set.
Indicator lamp interface 423 electrically connects core board 43, and it is for example for indicating that display control card is currently operating in synchronous mould
Formula or asynchronous mode.
Serial ports 424 electrically connects the microcontroller 431 on core board 43, and it can be used as program debugging mouth.
Microcontroller 431 on 485 interfaces 425 electrical connection core board 43, it is for example visited for external light probe, humiture
It is first-class.
SD card interface 426 electrically connect core board 43, so as to the present embodiment display control card support in asynchronous mode from
SD card imports program and played out.
Wired network interface 427 electrically connects the network PHY 433 on core board 43, and it is, for example, RJ45 interfaces, for outer
PC is connect to be used as the bridge to be communicated between the microprocessor 431 on core board 43 and outer PC.
USB HUB 428 electrically connect the USB PHY 432 on core board 43, and it is used primarily as USB interface extension；
The USB interface expanded can be used for patching the ancillary equipment such as USB flash disk and the mouse with USB interface.
USB interface 429 electrically connects USB HUB 428, and it can be used for grafting USB flash disk, so as to the display control of the present embodiment
Card supports that importing program from USB flash disk plays out in asynchronous mode.
Above-mentioned, the e.g. arm processor of microprocessor 431 on core board 43 is held, thereon operation operating system (example after electricity
Such as operating systems such as Linux, Androids) and the related application software of function, control various external equipments to play functions；It is in addition, micro-
Processor 431 can also be with other embedded microprocessors similar to arm processor.
USB PHY 432 electrically connect microprocessor 431, and it is, for example, USB 2.0PHY circuits.
Network PHY 433 electrically connects microprocessor 431, and it is, for example, 100,000,000 net PHY circuits.
Voicefrequency circuit 434 electrically connects microprocessor 431, to a processing module of audio, allusion quotation when it is as media play
Include level shifting circuit and digital analog converter type；It is, of course, understood that voicefrequency circuit 434 can also be arranged on bottom
On plate 41.
Crystal oscillating circuit 435 and PMIC 436 are electrically connected microprocessor 431.Wherein, PMIC 436 is mainly to core
Microprocessor 431 on plate 43 provides electric power management mechanism.
Memory module 437 electrically connects microprocessor 431, and it is for example including volatile memory such as DDR2 and non-volatile
Memory such as flash memory.
Furthermore the WiFi module 451 on radio communication daughter board 45 electrically connects the network PHY 433 on core board 43, and its is excellent
Elect double mode WiFi module as, can realize that AP+Station patterns coexist.Furthermore due to the display control card branch of the present embodiment
Onboard WiFi function is held, the function of program is transmitted wirelessly so as to realize mobile phone to it.
Mobile communication module 453 electrically connects the USB HUB 428 on bottom plate 41, and it is, for example, 3G/4G mobile communication modules.
In summary, the display control card of the present embodiment can reach following one or more beneficial effects：A) support single
Display control card network interface redundancy backup output function；B) video ring is supported to go out such as HDMI rings and go out function；C) synchronous/asynchronous is supported
Double mode handoff functionality；D) onboard WiFi AP+Station functions are supported；E) operation of infrared remote control switch screen is supported；And f)
The complexity of reduction system, the application environment of simplified LED display control programs are built.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be with
Realize by another way.For example, device embodiment described above is only schematical, for example, the unit
Division, only a kind of division of logic function, can there is other dividing mode, such as multichannel unit or component when actually realizing
Another system can be combined or be desirably integrated into, or some features can be ignored, or do not perform.It is another, it is shown or
The mutual coupling discussed or direct-coupling or communication connection can be the indirect couplings by some interfaces, device or unit
Close or communicate to connect, can be electrical, mechanical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multichannel
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the utility model can be integrated in a processing unit,
Can be that unit is individually physically present, can also two or more units it is integrated in a unit.It is above-mentioned integrated
Unit can both be realized in the form of hardware, can also be realized in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit realized in the form of SFU software functional unit, can be stored in one and computer-readable deposit
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are causing a computer
Equipment (can be personal computer, server, or network equipment etc.) performs each embodiment methods described of the utility model
Part steps.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (Read-Only Memory, abbreviation
ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic disc or CD etc. are various to store
The medium of program code.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the utility model technology
The spirit and scope of scheme.
Claims (10)
1. a kind of display control card, including microprocessor and the PLD for electrically connecting the microprocessor；Its feature
It is, in addition to：External video input interface and video ring outgoing interface, are electrically connected the PLD.
2. display control card as claimed in claim 1, it is characterised in that electric respectively also including the first network interface and the second network interface
Connect the PLD；One of first network interface and second network interface are configured to master control output network interface, and institute
The another one for stating the first network interface and second network interface is configured to redundancy output network interface.
3. display control card as claimed in claim 1, it is characterised in that the external video input interface and the video ring
Outgoing interface is HDMI.
4. display control card as claimed in claim 1, it is characterised in that, can described in electrical connection also including infrared circuit
Programmed logic device.
5. display control card as claimed in claim 1, it is characterised in that the display control card, which includes being provided with, described can compile
Journey logical device, the external video input interface and the video ring outgoing interface bottom plate and be provided with the microprocessor
Core board；The core board is fixed on the bottom plate.
6. display control card as claimed in claim 5, it is characterised in that the bottom plate is additionally provided with double mode switching key,
Electrically connect the PLD.
7. display control card as claimed in claim 5, it is characterised in that the core board is additionally provided with USB PHY and network
PHY, is electrically connected the microprocessor, and the bottom plate is additionally provided with USB HUB, USB interface and wired network interface；It is described
Display control card also includes radio communication daughter board, is fixed on the bottom plate to cause the core board to be located at the bottom plate and institute
State between radio communication daughter board；The radio communication daughter board is provided with double mode WiFi module and mobile communication module, described double
Pattern WiFi module electrically connects the network PHY, and the mobile communication module electrically connects the USB HUB；The cable network
Interface electrically connects the network PHY, and the USB HUB electrically connect the USB PHY, and described in USB interface electrical connection
USB HUB。
8. display control card as claimed in claim 7, it is characterised in that the bottom plate is additionally provided with SD card interface, 485 connect
Mouth, serial ports, indicator lamp interface, IP address reset button, energy supply control module, clock and battery module, microcontroller and sound
Frequency interface；The SD card interface, 485 interface, the serial ports, the indicator lamp interface, the IP address reset button and
The energy supply control module is electrically connected the core board, and the clock and battery module electrically connect the microcontroller, with
And the microcontroller electrically connects the PLD and the energy supply control module；The COBBAIF electrically connects institute
State PLD；The core board is additionally provided with voicefrequency circuit, electrically connects the microprocessor.
9. a kind of display control program, including multiple display control cards as claimed in claim 1, and each described display control
Fabrication carries at least one receive by network interface band and blocked；Wherein, the multiple display control card includes the first display control card and the
Two display control cards, the external video input interface of second display control card connect first display control card
The video ring outgoing interface.
10. a kind of display control program, including display control card and at least one receive are blocked；The display control card includes micro- place
Manage device and electrically connect the PLD of the microprocessor；Characterized in that, the display control card also includes first
Network interface and the second network interface, are electrically connected the PLD；One of first network interface and second network interface are matched somebody with somebody
Master control output network interface is set to, and the another one of first network interface and second network interface is configured to redundancy output network interface；It is described
At least one reception card is connected electrically between first network interface and second network interface to form closed loop connection.
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| CN201720476961.9U CN206712943U (en) | 2017-05-02 | 2017-05-02 | Display control card and display control program |
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| CN201720476961.9U CN206712943U (en) | 2017-05-02 | 2017-05-02 | Display control card and display control program |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256084A (en) * | 2018-10-29 | 2019-01-22 | 深圳市摩西尔电子有限公司 | It can cascade LED display control card, the cascade control method of realization and HDMI signal processing method |
| CN111081184A (en) * | 2018-10-19 | 2020-04-28 | 西安诺瓦星云科技股份有限公司 | Display screen controller, display system, core board and display box |
| CN111640392A (en) * | 2019-03-01 | 2020-09-08 | 西安诺瓦电子科技有限公司 | Display screen control method and system and display control card |
| CN112397012A (en) * | 2019-07-31 | 2021-02-23 | 西安诺瓦星云科技股份有限公司 | LED display screen, display control system, receiving card and module controller |
| CN112866677A (en) * | 2019-11-26 | 2021-05-28 | 西安诺瓦星云科技股份有限公司 | Signal emitter and display system |
| CN113126938A (en) * | 2020-01-15 | 2021-07-16 | 西安诺瓦星云科技股份有限公司 | Image display control method and device, display box and display system |
| CN113126938B (en) * | 2020-01-15 | 2024-06-04 | 西安诺瓦星云科技股份有限公司 | Image display control method and device, display box and display system |
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2017
- 2017-05-02 CN CN201720476961.9U patent/CN206712943U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111081184A (en) * | 2018-10-19 | 2020-04-28 | 西安诺瓦星云科技股份有限公司 | Display screen controller, display system, core board and display box |
| CN109256084A (en) * | 2018-10-29 | 2019-01-22 | 深圳市摩西尔电子有限公司 | It can cascade LED display control card, the cascade control method of realization and HDMI signal processing method |
| CN109256084B (en) * | 2018-10-29 | 2023-11-14 | 深圳市摩西尔电子有限公司 | Cascade LED display screen control card, control method for realizing cascade connection and HDMI signal processing method |
| CN111640392A (en) * | 2019-03-01 | 2020-09-08 | 西安诺瓦电子科技有限公司 | Display screen control method and system and display control card |
| CN112397012A (en) * | 2019-07-31 | 2021-02-23 | 西安诺瓦星云科技股份有限公司 | LED display screen, display control system, receiving card and module controller |
| CN112866677A (en) * | 2019-11-26 | 2021-05-28 | 西安诺瓦星云科技股份有限公司 | Signal emitter and display system |
| CN112866677B (en) * | 2019-11-26 | 2023-12-05 | 西安诺瓦星云科技股份有限公司 | Signal transmitter and display system |
| CN113126938A (en) * | 2020-01-15 | 2021-07-16 | 西安诺瓦星云科技股份有限公司 | Image display control method and device, display box and display system |
| CN113126938B (en) * | 2020-01-15 | 2024-06-04 | 西安诺瓦星云科技股份有限公司 | Image display control method and device, display box and display system |
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Address after: 710075 DEF101, Zero One Square, Xi'an Software Park, No. 72 Zhangbajie Science and Technology Second Road, Xi'an High-tech Zone, Shaanxi Province Patentee after: XI'AN NOVASTAR TECH Co.,Ltd. Address before: 710075 No.401, Zone D, qinfengge, Xi'an Software Park, No.68, Keji 2nd Road, high tech Zone, Xi'an City, Shaanxi Province Patentee before: Xi'an NovaStar Tech Co.,Ltd. |