CN206610612U - A kind of display controller and the control circuit for LED display - Google Patents
A kind of display controller and the control circuit for LED display Download PDFInfo
- Publication number
- CN206610612U CN206610612U CN201720139447.6U CN201720139447U CN206610612U CN 206610612 U CN206610612 U CN 206610612U CN 201720139447 U CN201720139447 U CN 201720139447U CN 206610612 U CN206610612 U CN 206610612U
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- module
- main control
- control module
- led display
- signal
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Abstract
The utility model belongs to display circuit technical field, a kind of control circuit there is provided display controller and for LED display, control circuit is connected with LED display, the control circuit includes radio receiving transmitting module, main control module and transport module, radio receiving transmitting module wirelessly receives the vision signal that external electronic device is sent, and by video signal transmission to main control module, so that main control module is changed to vision signal, and the optimization video signal transmission after conversion is shown to LED display by transport module.From there through wirelessly receiving vision signal so that need not plug wire rod when changing different external electronic devices, simple switching signal is only needed, it is easy to operate；Meanwhile, the optimization video signal transmission after conversion is shown that high resolution, its display effect is more excellent to LED display by transport module.
Description
Technical field
The utility model belongs to display circuit technical field, more particularly to a kind of display controller and is shown for LED
The control circuit of screen.
Background technology
At present, all it is, by image projection to projection screen, VGA to be connected to by projecting apparatus using projecting apparatus in meeting room
The VGA line, when user needs to be projected and explains, is then docked to the notebook computer of oneself by line；Once explain
Finish, VGA line is extracted, and pass to next interpretation staff.If notebook computer is not USB interface but connect with other
Mouthful, then need to change signal connecting line, while adjusting the input interface of projecting apparatus, which needs plug wire rod, cumbersome
And inefficiency.
Meanwhile, by projector to projection screen, due to projection during the situation that resolution ratio declines occurs,
Therefore the problem of display effect is poor is caused.
In summary, existing projection display technique is existed needs because changing when different notebook computers connect projecting apparatus
Plug wire rod cause it is cumbersome, and because projection process intermediate-resolution declines the problem of causing display effect poor.
Utility model content
The utility model purpose is to provide a kind of display controller and the control circuit for LED display, it is intended to solve
Certainly existing projection display technique is existed needs plug wire rod to cause because changing when different notebook computers connect projecting apparatus
It is cumbersome, and cause the problem of display effect is poor because projection process intermediate-resolution declines.
The utility model provides a kind of control circuit for LED display, and the control circuit is shown with the LED
Screen is connected, and the control circuit includes：
Radio receiving transmitting module, main control module and transport module；
The receiving terminal of the output termination main control module of the radio receiving transmitting module, the output termination of the main control module
The input of the transport module, the output of the transport module terminates the LED display；
The radio receiving transmitting module wirelessly receives the vision signal that external electronic device is sent, and will be described
Video signal transmission gives the main control module, so that the main control module is changed to the vision signal, and passes through institute
Transport module is stated to be shown the optimization video signal transmission after conversion to the LED display.
The utility model additionally provides a kind of display controller, including control circuit as described above.
The utility model provides a kind of display controller and the control circuit for LED display, control circuit and LED
Display screen is connected, and the control circuit includes radio receiving transmitting module, main control module and transport module, and radio receiving transmitting module passes through
The vision signal that external electronic device is sent wirelessly is received, and by video signal transmission to main control module, so that master control
Module is changed to vision signal, and by transport module by the optimization video signal transmission after conversion to LED display
Shown.From there through wirelessly receiving vision signal so that without plug when changing different external electronic devices
Wire rod, only needs simple switching signal, easy to operate；Meanwhile, by transport module by the optimization vision signal after conversion
It is transferred to LED display to be shown, high resolution, its display effect is more excellent, solves existing projection display technique and exist
Plug wire rod is needed to cause when because of the different notebook computers connection projecting apparatus of replacing cumbersome, and because in projection process
Resolution ratio, which declines, causes the problem of display effect is poor.
Brief description of the drawings
A kind of modular structure signal for control circuit for LED display that Fig. 1 provides for the utility model embodiment
Figure；
A kind of modular structure signal for control circuit for LED display that Fig. 2 provides for the utility model embodiment
Figure；
A kind of circuit connection structure for control circuit for LED display that Fig. 3 provides for the utility model embodiment
Schematic diagram.
Embodiment
In order that the technical problems to be solved in the utility model, technical scheme and beneficial effect are more clearly understood, below
With reference to drawings and Examples, the utility model is further elaborated.It should be appreciated that specific implementation described herein
Example only to explain the utility model, is not used to limit the utility model.
A kind of control circuit for light-emitting diode display that the utility model embodiment is provided, is mainly used in connection LED and shows
Device 201, user can switch current vision signal input, including HDMI by control button 108 or infrared module 104
The vision signal that interface 105, DVI interface 103 and radio receiving transmitting module 102 are received, when selection radio receiving transmitting module 102 is received
Vision signal when, above-mentioned vision signal is changed by main control module 101, carried out so as to be transferred to LED display 201
Display.On the one hand, because LED display 201 is due to possessing brightness height, good uniformity, high resolution, long lifespan and saving empty
Between etc. advantage, instead of traditional projecting apparatus and DLP (Digital Light Processing, digital light processing)；It is another
Aspect, is switched over by control button 108 or infrared module 104 to vision signal, and is related to wireless screen projection function,
User when conference content is shared need not plug wire rod, while the channel shared also from it is traditional can only computer access share existing
Can be with computer, mobile phone, the various ways such as pad are wirelessly shared, easy to operate, improve Consumer's Experience sense.
Fig. 1 shows a kind of modular structure for control circuit for LED display that the utility model embodiment is provided,
For convenience of description, the part related to the utility model embodiment is illustrate only, details are as follows：
This kind is used for the control circuit of LED display, and control circuit is connected with the LED display 201, control electricity
Road includes radio receiving transmitting module 102, main control module 101 and transport module 103.
The receiving terminal of the output termination main control module 101 of radio receiving transmitting module 102, the output termination of main control module 101 is passed
The input of defeated module 103, the output termination LED display 201 of transport module 103.
Radio receiving transmitting module 102 wirelessly receives the vision signal that external electronic device is sent, and by video
Signal is transferred to main control module 101, so that main control module 101 is changed to vision signal, and will by transport module 103
Optimization video signal transmission after conversion is shown to LED display 201.
As the embodiment of the utility model one, radio receiving transmitting module 102 can pass through for sending and receiving for vision signal
Miracast, DLNA and AIRPLAY agreement of current standard are transmitted.Wherein, when client uses Android system,
Then radio receiving transmitting module 102 can be communicated by Miracast agreements with client；When client uses WINDOWS systems
System, then radio receiving transmitting module 102 can be communicated by DLNA agreements with client；When client uses AIRPLAY systems
System, then radio receiving transmitting module 102 can be communicated by AIRPLAY agreements with client.Above-mentioned main control module 101 will be wireless
The vision signal that transceiver module 102 is received is changed, and the optimization vision signal after conversion is for needed for LED display 201
Display data, is the recognizable rgb signal of LED display 201.Lead to when being used as video input by radio receiving transmitting module 102
During road, Switch Video signal need not plug wire rod, easy to operate.
Fig. 2 shows a kind of modular structure for control circuit for LED display that the utility model embodiment is provided,
For convenience of description, the part related to the utility model embodiment is illustrate only, details are as follows：
As the embodiment of the utility model one, above-mentioned control circuit also includes：
It is connected with main control module 101, the HDMI 105 for transmitting HDMI signals；
It is connected with main control module 101, the DVI interface 106 for transmission digital video signal；
It is connected with main control module 101, the usb 1 07 for transmitting serial port control signal；
It is connected with main control module 101, the control button 108 for carrying out selection to channel video signal；
It is connected with main control module 101, for receiving infrared signal and the infrared mould of selection being carried out to channel video signal
Block 104.
As the embodiment of the utility model one, user can not only be manually operated control button 108 but also can be by remote
Journey sends infrared signal to infrared module 104, and so, main control module 101 receives the first control sent by control button 108
The second control signal that signal or infrared module 104 are sent, so that main control module 101 is according to the first control signal or second
Control signal selects video input passage, is selection HDMI 105 or DVI interface 106 or radio receiving transmitting module 102
The vision signal of output, and then vision signal is changed.
The vision signal that HDMI 105 is transmitted is HDMI signals, and the vision signal that DVI interface 106 is transmitted regards for numeral
Frequency signal, i.e. DVI signals.What the HDMI signals or DVI interface 106 that main control module 101 transmits HDMI 105 were transmitted
DVI signals are converted to the recognizable rgb signal of LED display 201.
As the embodiment of the utility model one, usb 1 07 is used for transmitting serial port control signal, and usb 1 07 can be with
Computer or host computer connection, therefore, computer or host computer can be communicated with main control module 101, and computer or
Host computer is transmitted serial port control signal or arrange parameter to main control module 101.
Fig. 3 shows a kind of circuit connection for control circuit for LED display that the utility model embodiment is provided
Structure, for convenience of description, illustrate only the part related to the utility model embodiment, details are as follows：
As the embodiment of the utility model one, above-mentioned main control module 1011 includes process chip U1, and process chip U1's connects
Receiving end REC and output end OUT are respectively the receiving terminal and output end of main control module 101, and process chip U1 serial ports end I/O connects
Usb 1 07, process chip U1 the first signal end SIG1 connects HDMI 105, process chip U1 secondary signal end SIG2
DVI interface 106 is connect, process chip U1 first input end IN1 connects control button 108, process chip U1 the second input IN2
Connect infrared module 104.In the present embodiment, process chip U1 uses model XC6SLX45 master control fpga chip, certainly, place
The model of reason chip is not limited, and also may be used as long as can reach with the function described in the present embodiment process chip U1.
As the embodiment of the utility model one, above-mentioned radio receiving transmitting module 102 includes wireless chip U2, wireless chip U2's
Output end OUTPUT is the output end of radio receiving transmitting module 102.In the present embodiment, wireless chip U2 uses model RF2915
Wireless chip, certainly, the model of wireless chip is not limited, as long as can reach and the work(described in the present embodiment wireless chip U2
It can act on and also may be used.
As the embodiment of the utility model one, above-mentioned transport module 103 includes transmission chip U3, transmission chip U3 input
End import and output end export is respectively the input and output end of transport module 103.In the present embodiment, chip is transmitted
U3 employs model BCM54610 transmission chip, certainly, and the model of transmission chip is not limited, as long as can reach and this reality
The function described in example transmission chip U3 is applied also may be used.The transport module 103 or network signal line, pass through network signal
Main control module 101 is attached by line with LED display 201.
As the embodiment of the utility model one, above-mentioned infrared module 104 includes infrared receiver chip U4, infrared receiver chip
U4 output end INF connects main control module 101.In the present embodiment, infrared receiver chip U4 employs the red of model BC7210A
Outer reception chip, certainly, the model of infrared receiver chip is not limited, as long as can reach and the present embodiment infrared receiver chip U4
Described function also may be used.The infrared module 104 can also be replaced with infrared receiving diode.
The utility model embodiment additionally provides a kind of display controller, including the above-mentioned control electricity for LED display
Road, wireless screen technology of throwing is applied in display controller by it so that " movement " and " wireless " performance gets a promotion, and significantly
Improve the ease for use of LED display conference system.Compared to traditional smart projector, LED display have contrast it is higher,
The advantages of colour gamut is stronger, the life-span is longer.
Meanwhile, display controller mainly includes the wireless screen control card, FPGA of throwing and gathers sending card, power supply, structural framing etc.,
Wireless screen control card of throwing mainly includes ARM control process circuits, WIFI is wireless double frequency transceiver module, and USB HUB circuits, HMDI is regarded
The WIFI vision signals transmitted are converted to HDMI signal outputs by frequency output interface circuit etc., its main function.
FPGA collection sending cards include video input interface circuit, FPGA control circuit, serial port control circuit, infrared remote control
Interface circuit, key circuit, RJ45 network transmission circuits etc., its main function are that the vision signal of input is converted into LED to show
Display data needed for display screen casing.Video interface circuit includes various video interface, for example：HDMI, DVI interface etc.,
Wherein HDMI and DVI interface are all used to throw screen control card docking with wireless.Serial port control circuit be mainly used in host computer with
FPGA collection sending cards set communication.Infrared remote control interface circuit and key circuit are mainly used in the switching of video source, display
The reception of the function signals such as the brightness adjustment of screen.RJ45 network transmission circuits are mainly used in transmitting the control needed for LED display
Signal and display data.
It is former to a kind of above-mentioned display controller and for the work of the control circuit of LED display below in conjunction with Fig. 2 and Fig. 3
Reason is described：
First, above-mentioned control circuit and LED display 201 are attached, due to the main control module 101 in control circuit
Simultaneously be connected with HDMI 105, DVI interface 106 and radio receiving transmitting module 102, user need to only be manipulated by by
Key 108 or the long-range infrared signal that sends are to infrared module 104, so that control button 108 or infrared module 104 send control
Signal selects video input passage, including selection to main control module 101, then main control module 101 according to the control signal
HDMI 105 or the vision signal of DVI interface 106 or radio receiving transmitting module 102 transmission, and vision signal is changed
Rgb signal is can recognize that for LED display 201, for example：When it is HDMI to select video input passage, 101 pairs of main control module
The HDMI signals that HDMI 105 is transmitted are converted to rgb signal；When it is DVI interface to select video input passage, main control module
The DVI signals that 101 pairs of DVI interfaces 106 are transmitted are converted to rgb signal；When selection video input passage is radio receiving transmitting module 102
When, the vision signal that main control module 101 is received to radio receiving transmitting module 102 is converted to rgb signal.Finally by transport module
Rgb signal after conversion is transferred to LED display 201 by 103 to be shown.
In summary, the utility model embodiment provides a kind of display controller and the control electricity for LED display
Road, control circuit is connected with LED display, and the control circuit includes radio receiving transmitting module, main control module and transport module,
Radio receiving transmitting module wirelessly receives the vision signal that external electronic device is sent, and by video signal transmission to master
Module is controlled, so that main control module is changed to vision signal, and by transport module by the optimization vision signal after conversion
LED display is transferred to be shown.From there through wirelessly receiving vision signal so that change different external electricals
Wire rod need not be plugged during equipment, simple switching signal is only needed, it is easy to operate；Meanwhile, after being changed by transport module
Optimization video signal transmission shown that high resolution, its display effect is more excellent to LED display, solve existing throwing
It is cumbersome that shadow Display Technique needs plug wire rod to cause when existing because of the different notebook computers connection projecting apparatus of replacing, with
And cause the problem of display effect is poor because projection process intermediate-resolution declines.The utility model embodiment is realized simple, it is not necessary to
The extra hardware of increase, can effectively reduce cost, with stronger usability and practicality.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modifications, equivalent substitutions and improvements made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of control circuit for LED display, the control circuit is connected with the LED display, its feature exists
In the control circuit includes：
Radio receiving transmitting module, main control module and transport module；
The receiving terminal of the output termination main control module of the radio receiving transmitting module, the output termination of the main control module is described
The input of transport module, the output of the transport module terminates the LED display；
The radio receiving transmitting module wirelessly receives the vision signal that external electronic device is sent, and by the video
Signal is transferred to the main control module, so that the main control module is changed to the vision signal, and is passed by described
Defeated module is shown the optimization video signal transmission after conversion to the LED display.
2. circuit is controlled as claimed in claim 1, it is characterised in that the control circuit also includes：
It is connected with the main control module, the HDMI for transmitting HDMI signals；
It is connected with the main control module, the DVI interface for transmission digital video signal；
It is connected with the main control module, the USB interface for transmitting serial port control signal；
It is connected with the main control module, the control button for carrying out selection to channel video signal；
It is connected with the main control module, for receiving infrared signal and the infrared module of selection being carried out to channel video signal.
3. circuit is controlled as claimed in claim 2, it is characterised in that the main control module includes process chip；
The receiving terminal and output end of the process chip are respectively the receiving terminal and output end of the main control module, the processing core
The serial ports of piece terminates the USB interface, and the first signal of the process chip terminates the HDMI, the process chip
Secondary signal terminates the DVI interface, and the first input end of the process chip connects the control button, the process chip
The second input termination infrared module.
4. circuit is controlled as claimed in claim 1, it is characterised in that the radio receiving transmitting module includes wireless chip；
The output end of the wireless chip is the output end of the radio receiving transmitting module.
5. circuit is controlled as claimed in claim 1, it is characterised in that the transport module includes transmission chip；
The input and output end of the transmission chip are respectively the input and output end of the transport module.
6. circuit is controlled as claimed in claim 2, it is characterised in that the infrared module includes infrared receiver chip；
The output of the infrared receiver chip terminates the main control module.
7. a kind of display controller, it is characterised in that the display controller includes the control as described in claim any one of 1-6
Circuit processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720139447.6U CN206610612U (en) | 2017-02-16 | 2017-02-16 | A kind of display controller and the control circuit for LED display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720139447.6U CN206610612U (en) | 2017-02-16 | 2017-02-16 | A kind of display controller and the control circuit for LED display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206610612U true CN206610612U (en) | 2017-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720139447.6U Expired - Fee Related CN206610612U (en) | 2017-02-16 | 2017-02-16 | A kind of display controller and the control circuit for LED display |
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| Country | Link |
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| CN (1) | CN206610612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110677704A (en) * | 2019-08-18 | 2020-01-10 | 上海明我信息技术有限公司 | Wireless audio and video transmission device, method and storage medium |
-
2017
- 2017-02-16 CN CN201720139447.6U patent/CN206610612U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110677704A (en) * | 2019-08-18 | 2020-01-10 | 上海明我信息技术有限公司 | Wireless audio and video transmission device, method and storage medium |
| CN110677704B (en) * | 2019-08-18 | 2021-10-01 | 上海明我信息技术有限公司 | Wireless audio and video transmission device, method and storage medium |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171103 Termination date: 20220216 |