CN204242562U - A kind of Novel LED display screen controller - Google Patents
A kind of Novel LED display screen controller Download PDFInfo
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- CN204242562U CN204242562U CN201420761197.6U CN201420761197U CN204242562U CN 204242562 U CN204242562 U CN 204242562U CN 201420761197 U CN201420761197 U CN 201420761197U CN 204242562 U CN204242562 U CN 204242562U
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Abstract
A kind of Novel LED display screen controller, comprising: network control module, video signal input interface, audio input interface, video processor chip and programmable logic device (PLD); Network control module, electrical connection video processor chip and programmable logic device (PLD), be connected for setting up network with exterior terminal equipment, externally terminal device exports LED display and controls the page, controls LED display according to the steering order that exterior terminal equipment sends; Video processor chip, electrical connection video signal input interface and audio input interface, the sound signal that vision signal and audio input interface for the treatment of video signal input interface input input with output processing result to programmable logic device (PLD); Programmable logic device (PLD), for carrying out data processing for output to digital of digital video data and digital audio-frequency data.Above-mentioned Novel LED display screen controller can solve the problem that existing LED display interface is single, audio frequency and video processing capacity is few, and escapable cost.
Description
Technical field
The utility model relates to display technique field, particularly relates to a kind of novel light-emitting diode (LED, Light Emitting Diode) displaying screen controller.
Background technology
In existing LED display synchronous control system, need controller to be connected with control computer and display screen, picture could be presented in LED display after proper communication.Particularly, first LED display controller needs to be connected with control computer, according to the various parameters of LED display, and configuration LED display controller.After having configured, LED display controller is connected with LED display, then vision signal is connected to LED display controller.When vision signal is by DVD (DigitalVersatile Disc, digital versatile disc) when inputting as input video source, the resolution of the output of DVD and the resolution of display screen may not be mated, and just likely disappearance or part are blank screen to the picture at this moment broadcasted in LED display.So want completely in LED display to demonstrate picture, except LED display, also need LED display controller, control computer, video source, video processor.
In above-mentioned prior art, for guaranteeing that LED display display complete picture often needs more equipment, comprising LED display, LED display controller as needed, controlling multiple equipment of computer, video source and video processor could by picture in normal and complete the playing back of LED display.And the image processing function of existing LED display controller is less, generally only can carry out simple gamma, colour temperature adjustment etc. to the image of input, the video source modeling processing capacities such as such as color enhancement, de interlacing, colour of skin compensation cannot be realized, more cannot realize PIP (Picture In Picture, picture-in-picture), picture and text superposition, video processing function and the high performance image intelligent convergent-divergent such as hyperchannel seamless switching, function singleness.
Utility model content
In view of this, the utility model provides a kind of Novel LED display screen controller, can solve the problem that existing LED display control unit interface is single, audio frequency and video processing capacity is few, and escapable cost.
A kind of Novel LED display screen controller that the utility model embodiment provides, comprising: network control module, video signal input interface, audio input interface, video processor chip and programmable logic device (PLD);
Described network control module, be electrically connected described video processor chip and described programmable logic device (PLD), be connected for setting up network with exterior terminal equipment, export to described exterior terminal equipment the LED display preset and control the page, according to the steering order that described exterior terminal equipment sends based on the described control page, control described LED display;
Described video processor chip, be electrically connected described video signal input interface and described audio input interface, the vision signal inputted for the treatment of described video signal input interface with output digital video data to described programmable logic device (PLD), the sound signal processing the input of described audio input interface with outputting digital audio data to described programmable logic device (PLD);
Described programmable logic device (PLD), for carrying out data processing for output to described digital of digital video data and described digital audio-frequency data.
The Novel LED display screen controller that the utility model embodiment provides, integrate network control and image processing function, by setting up network control module and video processor chip, utilize network control module to set up network with exterior terminal equipment to be connected, and control LED display by exterior terminal equipment, the matching problem solve conventional video treatment facility, controlling between computer and controller, decreases equipment and connecting line quantity, facilitates field adjustable.In addition, utilize the video of video processor chip and image processing function and audio frequency processing capacity, can receive and process all kinds of vision signal and sound signal, thus the input interface of LED display controller can be enriched and increase the image-capable of LED display controller.In addition, the built-in audio processing capacity of video processor chip also can solve traditional sending card and not support the problem that audio frequency sends.
For above and other object of the present utility model, feature and advantage can be become apparent, preferred embodiment cited below particularly, and coordinate institute's accompanying drawings, be described in detail below.But it should be known that accompanying drawing is only the object design of explanation, instead of as the restriction of scope of the present utility model, this is because it should with reference to additional claim.Should also be appreciated that, unless otherwise noted, unnecessaryly draw accompanying drawing to scale, they only try hard to structure described herein and flow process are described conceptually.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
Fig. 1 is the module diagram of the Novel LED display screen controller of the utility model one embodiment.
Fig. 2 is the module diagram of the Novel LED display screen controller of another embodiment of the utility model.
Embodiment
For further setting forth the utility model for the technological means that realizes predetermined utility model object and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to according to embodiment of the present utility model, structure, feature and effect thereof, be described in detail as follows.
Refer to Fig. 1, it is the module diagram of the Novel LED display screen controller of the utility model one embodiment.As shown in Figure 1, Novel LED display screen controller 20 (such as sending card), is suitable for being connected to by netting twine the LED display being configured with receiving card.In the present embodiment, LED display can be monochromatic screen, double-colored screen or full-color screen, and it such as comprises a LED box or multiple LED box be stitched together, and single led casing can comprise one or more LED lamp panel and usually be configured with receiving card.
Particularly, Novel LED display screen controller 20 comprises: network control module 21, video signal input interface 22, audio input interface 23, video processor chip 24 and programmable logic device (PLD) 25, and comprises further: network transmission module 26 and multiple network interface 27.
Wherein, network control module 21, electrical connection video processor chip 24 and programmable logic device (PLD) 25, be connected for setting up network with exterior terminal equipment 10, externally terminal device 10 exports the LED display preset and controls the page, according to the steering order that exterior terminal equipment 10 sends based on this control page, control LED display.Video processor chip 24, electrical connection video signal input interface 22 and audio input interface 23, for the treatment of video signal input interface 22 input vision signal with output digital video data to programmable logic device (PLD) 25, audio signal input interface 23 input sound signal with outputting digital audio data to programmable logic device (PLD) 25.Programmable logic device (PLD) 25, is electrically connected with video processor chip 24, for carrying out data processing for output to this digital of digital video data and this digital audio-frequency data.Network transmission module 26, electrical connection programmable logic device (PLD) 25 and multiple network interface 27, for programmable logic device (PLD) 25 is exported data processing is carried out to this digital of digital video data and this digital audio-frequency data after the Internet protocol data bag that produces be sent to network interface 27 outwards to send.It should be noted that, the video signal input interface of the present embodiment and the quantity of audio input interface do not limit, and it is determined according to the needs of practical application.
In the present embodiment, network control module 21 can and exterior terminal equipment 10 between carry out Signal transmissions by wireless network or Ethernet.Wherein, above-mentioned wireless network can comprise cellular telephone networks, WLAN (wireless local area network) or Metropolitan Area Network (MAN).Above-mentioned wireless network can use various communication standard, agreement and technology, include, but are not limited to global system for mobile communications (Global System for MobileCommunication, GSM), enhancement mode mobile communication technology (Enhanced Data GSMEnvironment, EDGE), Wideband CDMA Technology (wideband code division multipleaccess, W-CDMA), CDMA (Code Division Multiple Access) (Code division access, CDMA), tdma (time division multiple access, TDMA), bluetooth, adopting wireless fidelity technology (Wireless, Fidelity, WiFi) (as IEEE-USA standard IEEE 802.11a, IEEE 802.11b, IEEE802.11g and/or IEEE 802.11n), the networking telephone (Voiceover internet protocal, VoIP), worldwide interoperability for microwave access (Worldwide Interoperabilityfor Microwave Access, Wi-Max), other are for mail, the agreement of instant messaging and short message, and any other suitable communications protocol, even can comprise those current agreements be developed not yet.
Exterior terminal equipment 10 can comprise: the smart mobile phone, panel computer, E-book reader, pocket computer on knee etc. of supporting the network signal transmission based on above-mentioned wireless network or Ethernet.
Particularly, setting up after network is connected with exterior terminal equipment 10, network control module 21 is by browser/server (B/S, Browser/Server) pattern or application program (Application, APP) pattern, externally terminal device 10 exports the LED display preset and controls the page, make exterior terminal equipment 10 be able to be presented by browser or APP and log in this LED display to control the page, and according to the operation that user carries out at this control page, to network control module 21 sending controling instruction, so that network control module 21 controls LED display according to this steering order.Thus, the control to LED display can be completed without the need to use control computer, thus greatly can save cost.
In the present embodiment, programmable logic device (PLD) 25 can be, but not limited to comprise FPGA (FieldProgrammable Gate Array, field programmable gate array), network transmission module 26 such as can comprise network PHY (Physical Layer, Physical layer) chip, the quantity of network interface 27 is at least one.
Refer to Fig. 2, it is the module diagram of the LED display controller of another embodiment of the utility model.As shown in Figure 2, the difference of the structure of Novel LED display screen controller 30 and the Novel LED display screen controller 20 shown in Fig. 1 is:
Further, network control module 21 comprises: network adapter 211 and single-chip microcomputer 213.Network adapter 211 is electrically connected with single-chip microcomputer 213, be provided for Novel LED display screen controller 30 to set up network with exterior terminal equipment 10 and be connected, default LED display is controlled the page and exports exterior terminal equipment 10 to, receive the steering order that exterior terminal equipment 10 sends based on this control page, export this steering order to single-chip microcomputer 213.Single-chip microcomputer 213, electrical connection video processor chip 24 and programmable logic device (PLD) 25, this steering order for exporting network adapter 211 processes, to obtain various sound, video processing parameter and display screen configuration parameter, by the various sounds obtained after process, video processing parameter exports video processor chip 24 to, so that video processor chip 24 is according to this audio frequency and video process parameter processing sound, vision signal, also for the various display screen configuration parameters obtained after process are sent to LED display by programmable logic device (PLD) 25, to realize the control to this LED display, such as: control the configuration to all kinds of parameter of LED display, picture controls and screen is arranged etc.
Video processor chip 24 such as comprises: video and image processing module 241 and audio processing modules 242, and video and image processing module 241 such as comprise Faroudja image processing engine.
Video signal input interface 22 comprises: digital video signal input interface 221 and analog video signal input interface 222, be electrically connected video processor chip 24 respectively.Particularly, digital video signal input interface 221 can be, but not limited to comprise: Displayport interface, HDMI (High DefinitionMultimedia Interface, HDMI (High Definition Multimedia Interface)) interface, DVI (Digital VisualInterface, digital visual interface) interface, 30BitTTL interface, or Displayport interface, HDMI, DVI interface, 30BitTTL interface combination in any.Analog video signal input interface 222 can be, but not limited to comprise: VGA (Video Graphics Array, Video Graphics Array) interface, S terminal (S-Video) interface, component vide (Component) interface, composite video (Composite) interface, Composite Video Broadcast Signal (Composite Video Broadcast Signal, CVBS) interface, or USB interface, S terminal interface, component video interface, composite video interface, CVBS interface combination in any.
Audio input interface 23 comprises: digital audio and video signals input interface 231 and simulated audio signal input interface 232.Particularly, digital audio and video signals input interface can be, but not limited to comprise: I2S (Inter-IC Sound, integrated circuit built-in audio) bus interface, SPDIF interface (Sony/PhilipsDigital Interface Format, Sony/Philip Digital audio interface), or the combination of I2S bus interface and SPDIF interface.
Further, Novel LED display screen controller 30 also comprises: internal or external signal strengthens antenna 31, keyboard interface 32, LCD MODULE control interface 33, UART (UniversalAsynchronous Receiver/Transmitter, universal asynchronous receiving-transmitting transmitter) interface 34, first dynamic RAM 35, flash memory 36, second dynamic RAM 37.
Wherein, internal or external signal strengthens antenna 31, is electrically connected with network control module 21 (as shown in Figure 2), for the intensity of the network signal that Strengthens network control module 21 is transmitted.
Keyboard interface 32 and LCD MODULE control interface 33, electrical connection video processor chip 24 (as shown in Figure 2) or programmable logic device (PLD) 25.Keyboard interface 32 and LCD MODULE control interface 33 can distinguish external matrix formula keyboard (Keypad) and Lattice graphics LCD module, so conveniently can control and system status monitoring, such as, facilitate user to carry out input channel and switch fast and arrange with video processing function.At this, keyboard interface 32 is such as electrically connected to ADC (the Analogto Digital Conversion of video processor chip 24, analog to digital conversion) interface or I2C (Inter-Integrated Circuit) interface, LCD MODULE control interface 33 is such as electrically connected to the SPI interface (Serial Peripheral Interface, Serial Peripheral Interface (SPI)) or 8 bit parallel digital interfaces etc. of video processor chip 24.
UART interface 34, electrical connection video processor chip 24 (as shown in Figure 2) or programmable logic device (PLD) 25, for another this controller of cascade, complete the cascade between multiple same model Novel LED display screen controller 30, thus make user to certain Novel LED display screen controller 30 arrange action/parameter configuration can synchronous transmission to next stage Novel LED display screen controller 30, such as passage bridge, open PIP, the parameters such as adjustment output resolution ratio, realize the synchronous tiled function of multiple Novel LED display screen controller 30, the rotating band completing larger resolution LED display carries.
First dynamic RAM 35 and flash memory 36, electrical connection video processor chip 24.Second dynamic RAM 37 is electrically connected programmable logic device (PLD) 25.First dynamic RAM 35 and the second dynamic RAM 37 can be, but not limited to comprise high speed DDR2 (Double Data Rate 2, second generation Double Data Rate synchronous DRAM) internal memory.
Particularly, video processor chip 24 can complete multiple analog in conjunction with the first dynamic RAM 35 and flash memory 36, the reception of digital video signal and sound signal, brightness can be completed to the video image that each video signal input interface inputs by the Faroudja image processing engine in the video of inside and image processing module 241, colourity, saturation degree, gamma (Gamma) adjusts, the colour of skin compensates, the color processing capacities such as color enhancement, and realize image de interlacing, video source modeling processing capacity and the PIP such as stepless zooming, the image co-registration functions such as picture and text superposition.Vedio data after process is sent to programmable logic device (PLD) 25 with parallel TTL form, and the procotol completing video data in conjunction with dynamic RAM 282 by programmable logic device (PLD) 25 is changed and data packing.In addition, after the outside sound signal inputted can be passed through inner audio processing modules 242 process, be sent to programmable logic device (PLD) 25 by digital audio format such as I2S form, completed the packing of voice data by programmable logic device (PLD) 25, and be synchronously inserted in vedio data stream; Final data realize the Internet Transmission of video, audio frequency by network transmission module 26 and network interface 27.It is worth mentioning that, vedio data after the present embodiment process is not limited to be sent to programmable logic device (PLD) 25 with parallel TTL form, also extended formatting can be adopted, less and the LVDS that antijamming capability is stronger (the Low VoltageDifferential Signaling of the data line such as needed, Low Voltage Differential Signal) form, need to do suitable format conversion after just programmable logic device (PLD) 25 receives LVDS format video view data.
Understandably, the utility model also can use programmable logic device (PLD) 25 as master controller, network control module 21, UART interface 34, keyboard interface 32 and LCD MODULE control interface 33 are all electrically connected to programmable logic device (PLD) 25, thus by the parameter configuration of programmable logic device (PLD) 25 completion system, and the selection that video processor chip 23 completes input channel can be controlled, brightness, colourity, saturation degree, gamma adjusts, the colour of skin compensates, the color processing capacities such as color enhancement, and realize de interlacing, video source modeling processing capacity and the PIP such as stepless zooming, the image co-registration functions such as picture and text superposition.
From aforementioned Fig. 1 with embodiment illustrated in fig. 2ly can to learn, it is one or more that the Novel LED display screen controller 20,30 that the utility model embodiment provides can have in following beneficial effect:
(1) abundant input interface, the video processor chip that the utility model embodiment provides can support the digital input interfaces such as such as Displayport, HDMI, DVI, 30BitTTL by built-in receiver and high-speed ADC, and the analog video input interface such as such as VGA, S-Video, CVBS, Component, Composite.Support such as I2S, SPDIF and the input of multi-channel analog audio frequency audio frequency simultaneously, and do not need outside receiving chip, facilitate circuit design;
(2) multiple audio frequency and video processing capacity, comprise the color processing capacities such as such as brightness, colourity, saturation degree, Gamma adjustment, colour of skin compensation, color enhancement, complete image de interlacing, the video processing functions such as stepless zooming, and realize the image co-registration function such as PIP, picture and text superposition, greatly enrich the video processing function of sending card, improve the scope of application.Also can solve the transmission problem of audio frequency simultaneously.The utility model embodiment can pass through the built-in audio frequency processing circuit of video processor chip, support that the audio frequency of the multiple formats such as such as I2S, SPDIF, analogue audio frequency inputs, and after inter-process and audio adjustment, by I2S bus transfer to FPGA, the packing realizing voice data sends, and the audio frequency solving traditional sending card sends problem.
(3) owing to the addition of network control module, level of integrated system improves, and the matching problem solve conventional video treatment facility, controlling between computer and controller, decreases equipment and connecting line quantity, facilitate field adjustable, improve Consumer's Experience.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solutions of the utility model content, according to any simple modification that technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (10)
1. a Novel LED display screen controller, is characterized in that, described controller comprises: network control module, video signal input interface, audio input interface, video processor chip and programmable logic device (PLD);
Described network control module, be electrically connected described video processor chip and described programmable logic device (PLD), be connected for setting up network with exterior terminal equipment, export to described exterior terminal equipment the LED display preset and control the page, according to the steering order that described exterior terminal equipment sends based on the described control page, control LED display;
Described video processor chip, be electrically connected described video signal input interface and described audio input interface, the vision signal inputted for the treatment of described video signal input interface with output digital video data to described programmable logic device (PLD), the sound signal processing the input of described audio input interface with outputting digital audio data to described programmable logic device (PLD);
Described programmable logic device (PLD), for carrying out data processing for output to described digital of digital video data and described digital audio-frequency data.
2. controller according to claim 1, is characterized in that, carry out Signal transmissions by wireless network or Ethernet between described network control module and described exterior terminal equipment, described network control module comprises: network adapter and single-chip microcomputer;
Described network adapter, be electrically connected with described single-chip microcomputer, be connected for setting up network with described exterior terminal equipment, export to described exterior terminal equipment the LED display preset and control the page, receive the steering order that described exterior terminal equipment sends based on the described control page, export described steering order to described single-chip microcomputer;
Described single-chip microcomputer, be electrically connected described video processor chip and described programmable logic device (PLD), described steering order for exporting described network adapter processes, export the various sounds obtained after process, video processing parameter to described video processor chip, and the various display screen configuration parameters obtained after process are sent to described LED display by described programmable logic device (PLD).
3. controller according to claim 1 and 2, is characterized in that, described controller also comprises: internal or external signal strengthens antenna, for strengthening the intensity of the network signal of described network control module transmission.
4. controller according to claim 3, is characterized in that, described network control module exports the described control page by Browser/Server Mode or programming mode to described exterior terminal equipment.
5. controller according to claim 1, is characterized in that, described controller also comprises: keyboard interface and LCD MODULE control interface, is electrically connected described video processor chip or described programmable logic device (PLD).
6. controller according to claim 1, is characterized in that, described video signal input interface comprises: digital video signal input interface and analog video signal input interface, be electrically connected described video processor chip respectively;
Wherein, described digital video signal input interface comprises: Displayport interface, HDMI, DVI interface, 30BitTTL interface, or Displayport interface, HDMI, DVI interface, 30BitTTL interface combination in any;
Described analog video signal input interface comprises: USB interface, S terminal interface, component video interface, composite video interface, Composite Video Broadcast Signal interface, or USB interface, S terminal interface, component video interface, composite video interface, Composite Video Broadcast Signal interface combination in any.
7. controller according to claim 1, is characterized in that, described audio input interface comprises: digital audio and video signals input interface and simulated audio signal input interface;
Wherein, described digital audio and video signals input interface comprises: I2S bus interface, SPDIF interface, or the combination of I2S bus interface and SPDIF interface.
8. controller according to claim 1, is characterized in that, described controller also comprises: UART interface, is electrically connected described video processor chip or described programmable logic device (PLD), for cascade controller described in another.
9. controller according to claim 1, is characterized in that, described controller also comprises: network transmission module and network interface;
Described network transmission module comprises network PHY chip, described network PHY chip electrical connects described programmable logic device (PLD), is sent to described network interface outwards to send for the Internet protocol data bag produced after described programmable logic device (PLD) is carried out data processing to described digital of digital video data and described digital audio-frequency data;
Described network interface, is electrically connected described network transmission module.
10. controller according to claim 1, it is characterized in that, the digital audio-frequency data that described video processor chip exports described programmable logic device (PLD) to is I2S form serial audio data, and described video processor chip exports the digital of digital video data of described programmable logic device (PLD) to for parallel TTL format video data.
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| CN201420761197.6U CN204242562U (en) | 2014-12-05 | 2014-12-05 | A kind of Novel LED display screen controller |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112634772A (en) * | 2020-12-24 | 2021-04-09 | 浙江方泰显示技术有限公司 | LED dynamic display device based on audio and video data |
| CN113115101A (en) * | 2021-04-13 | 2021-07-13 | 深圳大因光电有限公司 | LED display screen, distributed information display system and control method |
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2014
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112634772A (en) * | 2020-12-24 | 2021-04-09 | 浙江方泰显示技术有限公司 | LED dynamic display device based on audio and video data |
| CN113115101A (en) * | 2021-04-13 | 2021-07-13 | 深圳大因光电有限公司 | LED display screen, distributed information display system and control method |
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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 Qinfengge D District 401, Xi'an Software Park, 68 Science and Technology Second Road, Xi'an High-tech Zone, Shaanxi Province Patentee before: Xi'an NovaStar Tech Co.,Ltd. |