CN204463782U - A kind of interactive flat-panel display that can receive long range propagation VGA signal - Google Patents
A kind of interactive flat-panel display that can receive long range propagation VGA signal Download PDFInfo
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- CN204463782U CN204463782U CN201420859588.1U CN201420859588U CN204463782U CN 204463782 U CN204463782 U CN 204463782U CN 201420859588 U CN201420859588 U CN 201420859588U CN 204463782 U CN204463782 U CN 204463782U
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Abstract
The utility model discloses a kind of interactive flat-panel display that can receive long range propagation VGA signal, comprise the image processing circuit that RJ35 network interface, that the first signaling conversion circuit, that a signal transmssion line, is arranged on signal transmssion line interface is arranged on interactive flat-panel display is arranged on secondary signal change-over circuit in interactive flat-panel display and an interactive flat-panel display; Signal transmssion line transfers to the RJ35 network interface of interactive flat-panel display after the VGA signal of VGA output device is converted to differential signal by the first signaling conversion circuit, differential signal to be converted to VGA Signal transmissions to image processing circuit by secondary signal change-over circuit and to show by interactive flat-panel display.The utility model, by VGA signal being converted to the mode of differential signal transmission, improves the transmission range of signal, makes interactive flat-panel display can receive the VGA signal of long range propagation.
Description
Technical field
The utility model relates to a kind of interactive flat-panel display, particularly relates to a kind of interactive flat-panel display receiving long range propagation VGA signal.
Background technology
What existing flat-panel monitor all adopted is VGA Signal transmissions, and VGA signal is simulating signal, cannot long range propagation, will cause signal attenuation, and cannot normally work after transmission range increases; Along with the continuous enhancing of VGA output device performance, usually need multiple display to work simultaneously, and user also wishes that the display used by growing distance realizes more experiences, particularly in the use of interactive flat-panel display, the ability of long range propagation seems further important.
Utility model content
The purpose of this utility model is the deficiency overcoming prior art, a kind of interactive flat-panel display that can receive long range propagation VGA signal is provided, by the improvement to signal transmssion line and flat-panel monitor internal circuit configuration thereof, the decay of signal can be reduced and extend the transmission range of signal, achieve the VGA signal that interactive flat-panel display receives long range propagation, thus reach the object increasing product applicability.
The utility model solves the technical scheme that its technical matters adopts: a kind of interactive flat-panel display that can receive long range propagation VGA signal, comprising:
One signal transmssion line, the input end of this signal transmssion line adopts the D-SUB interface of standard, and to be used for connecting VGA output device, the output terminal of this signal transmssion line adopts RJ45 network cable socket, to be used for connecting interactive flat-panel display; In signal transmssion line, be also provided with the first signaling conversion circuit in the one end near D-SUB interface, be used for converting VGA signal to digital difference signal;
The one RJ35 network interface being arranged on interactive flat-panel display, when the RJ45 network cable socket of signal transmssion line and this RJ35 network interface plug, interactive flat-panel display provides power supply by RJ35 network interface to the first signaling conversion circuit of described signal transmssion line;
One is arranged on the secondary signal change-over circuit in interactive flat-panel display, and this secondary signal change-over circuit is connected with RJ35 network interface, and this secondary signal change-over circuit is used for converting digital difference signal to VGA signal; With
The image processing circuit of one interactive flat-panel display, this image processing circuit is connected with secondary signal change-over circuit, and this image processing circuit is used for VGA Display image.
The beneficial effects of the utility model are: signal transmssion line transfers to the RJ35 network interface of interactive flat-panel display after the VGA signal of VGA output device is converted to differential signal by the first signaling conversion circuit, and differential signal to be converted to VGA Signal transmissions to image processing circuit by secondary signal change-over circuit and to show by interactive flat-panel display; Signal using differential signal as carrier, decreases the decay of signal in transmitting procedure, extends the transmission range of signal, is the VGA signal that interactive flat-panel display can receive long range propagation, adds the applicability of product, improve Consumer's Experience.
Below in conjunction with drawings and Examples, the utility model is described in further detail; But a kind of interactive flat-panel display that can receive long range propagation VGA signal of the present utility model is not limited to embodiment.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model.
Embodiment
Embodiment, shown in Figure 1, a kind of interactive flat-panel display that can receive long range propagation VGA signal of the present utility model, comprising:
One signal transmssion line 2, the input end of this signal transmssion line 2 adopts the D-SUB interface 21 of standard, and to be used for connecting VGA output device 3, the output terminal of this signal transmssion line 2 adopts RJ45 network cable socket 23, to be used for connecting interactive flat-panel display 1; In signal transmssion line 2, be also provided with the first signaling conversion circuit 22 in the one end near D-SUB interface 21, be used for converting VGA signal to digital difference signal;
The one RJ35 network interface 13 being arranged on interactive flat-panel display 1, when the RJ45 network cable socket 23 of signal transmssion line 2 plugs with this RJ35 network interface 13, interactive flat-panel display 1 provides power supply by RJ35 network interface 13 to the first signaling conversion circuit 22 of described signal transmssion line 2;
One is arranged on the secondary signal change-over circuit 12 in interactive flat-panel display 1, and this secondary signal change-over circuit 12 is connected with RJ35 network interface 13, and this secondary signal change-over circuit 12 is used for converting digital difference signal to VGA signal; With
The image processing circuit 11 of one interactive flat-panel display 1, this image processing circuit 11 is connected with secondary signal change-over circuit 12, and this image processing circuit 11 is used for VGA Display image.
It is inner that described secondary signal change-over circuit 12 and described RJ35 network interface 13 can be integrated in interactive flat-panel display 1, also can become independent signal conversion equipment independent of outside interactive flat-panel display 1.
The signal transmssion line 2 of described differential signal is netting twine, and transmission range can reach more than 10m.Other kind transmission lines of equal transport mode all fall in protection domain of the present utility model.
Above-described embodiment is only used for further illustrating a kind of interactive flat-panel display 1 that can receive long range propagation VGA signal of the present utility model; but the utility model is not limited to embodiment; every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all fall in the protection domain of technical solutions of the utility model.
Claims (1)
1. can receive an interactive flat-panel display for long range propagation VGA signal, it is characterized in that: comprising:
One signal transmssion line, the input end of this signal transmssion line adopts the D-SUB interface of standard, and to be used for connecting VGA output device, the output terminal of this signal transmssion line adopts RJ45 network cable socket, to be used for connecting interactive flat-panel display; In signal transmssion line, be also provided with the first signaling conversion circuit in the one end near D-SUB interface, be used for converting VGA signal to digital difference signal;
The one RJ35 network interface being arranged on interactive flat-panel display, when the RJ45 network cable socket of signal transmssion line and this RJ35 network interface plug, interactive flat-panel display provides power supply by RJ35 network interface to the first signaling conversion circuit of described signal transmssion line;
One is arranged on the secondary signal change-over circuit in interactive flat-panel display, and this secondary signal change-over circuit is connected with RJ35 network interface, and this secondary signal change-over circuit is used for converting digital difference signal to VGA signal; With
The image processing circuit of one interactive flat-panel display, this image processing circuit is connected with secondary signal change-over circuit, and this image processing circuit is used for VGA Display image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420859588.1U CN204463782U (en) | 2014-12-30 | 2014-12-30 | A kind of interactive flat-panel display that can receive long range propagation VGA signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420859588.1U CN204463782U (en) | 2014-12-30 | 2014-12-30 | A kind of interactive flat-panel display that can receive long range propagation VGA signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204463782U true CN204463782U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420859588.1U Active CN204463782U (en) | 2014-12-30 | 2014-12-30 | A kind of interactive flat-panel display that can receive long range propagation VGA signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204463782U (en) |
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2014
- 2014-12-30 CN CN201420859588.1U patent/CN204463782U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant |