CN104052953A - Display and control method thereof - Google Patents

Display and control method thereof Download PDF

Info

Publication number
CN104052953A
CN104052953A CN201410267504.XA CN201410267504A CN104052953A CN 104052953 A CN104052953 A CN 104052953A CN 201410267504 A CN201410267504 A CN 201410267504A CN 104052953 A CN104052953 A CN 104052953A
Authority
CN
China
Prior art keywords
video signal
switch
coupled
vertical synchronizing
horizontal synchronization
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201410267504.XA
Other languages
Chinese (zh)
Other versions
CN104052953B (en
Inventor
邱建赐
蔡宗民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qisda Suzhou Co Ltd
Qisda Corp
Original Assignee
Qisda Suzhou Co Ltd
Qisda Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qisda Suzhou Co Ltd, Qisda Corp filed Critical Qisda Suzhou Co Ltd
Priority to CN201410267504.XA priority Critical patent/CN104052953B/en
Publication of CN104052953A publication Critical patent/CN104052953A/en
Application granted granted Critical
Publication of CN104052953B publication Critical patent/CN104052953B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention provides a display and a control method of the display. When an external video signal source is coupled to a video signal connection interface and the external video signal source supplies a vertical synchronization signal to a horizontal synchronization signal connection port, the control end of a first switch is controlled to make the first switch be turned on, and a second resistor is coupled between a low-voltage end and a horizontal synchronization signal route through the first switch so that a first resistor can be connected with the second resistor in parallel. By means of the display and the control method, the display can be compatible with a three-line type external video signal source, a four-line type external video signal source and a five-line type external video signal source only through the single video signal connection interface, and the connection interface of the display is simple.

Description

Display and control method thereof
Technical field
The present invention discloses a kind of display and control method thereof, espespecially a kind of holding concurrently and compatible display and the control method thereof in four-wire type exterior video signal source and five-line exterior video signal source.
Background technology
Display such as, is connected with exterior video signal source (video signal player, video camera, industrial instrumentation or Medical Instruments etc.) at present, can coordinate the kind in exterior video signal source, connect by five-line (R.G.B.H.V.) linkage interface, four-wire type (R.G.B.H+V.) linkage interface or three-wire type (R.Gs.B.) linkage interface.Please refer to Fig. 1.Fig. 1 is the schematic diagram of five-line linkage interface 100 common in prior art.The kind of linkage interface need coordinate different types of signal terminal, Fig. 1 is taking the interface of BNC (Bayonet Neill – Concelman) terminal as example, it is respectively red (R) video signal Port 110 from left to right, green (G) video signal Port 120, blue video signal (B) signal port 130, horizontal synchronization signal Port 140 and vertical synchronizing signal Port 150, in order to receive respectively red video signal, green video signal, blue video signal, horizontal synchronization signal (Horizontal synchronization signal, H-sync signal) and vertical synchronizing signal (Vertical synchronization signal, V-sync signal).Above-mentioned horizontal synchronization signal is in order to control the scan line of display, and vertical synchronizing signal is in order to converge whole scan line to form picture frame demonstration.As seen from Figure 1, the five-line linkage interface on display only can be coupled to five-line exterior video signal source, and the linkage interface of three-wire type, four-wire type and five-line cannot be integrated.For making display can be connected in three-wire type exterior video signal source or four-wire type exterior video signal source, according to prior art, user and manufacturer are forced to use the adapter of multiple dismounting inconvenience, repeated disassembled and assembled in the time that display is connected in exterior video signal source, or multiple linkage interface is all arranged on display, and cause display interfaces complexity, area to be difficult to reduction.This has caused user's inconvenience, and also the utmost point is unfavorable for product specification.
Summary of the invention
The object of the present invention is to provide a kind of display and control method thereof, can hold concurrently compatible with four-wire type exterior video signal source and five-line exterior video signal source.
For achieving the above object, technical scheme of the present invention provides a kind of display, comprises:
Video signal linkage interface, comprises:
Red video signal Port, in order to receive red video signal;
Green video signal Port, in order to receive green video signal;
Blue video signal Port, in order to receive blue video signal;
Vertical synchronizing signal Port, in order to receive vertical synchronizing signal; And
Horizontal synchronization signal Port, in order to receive horizontal synchronization signal and/or this vertical synchronizing signal;
Inner distribution interface, comprises red video signal end points, green video signal end points, blue video signal end points, vertical synchronizing signal end points and horizontal synchronization signal end points;
Red video signal path, comprises:
First end, is coupled to this redness video signal end points; And
The second end, is coupled to this redness video signal Port;
Green video signal path, comprises:
First end, is coupled to this green video signal end points, and
The second end, is coupled to this green video signal Port;
Blue video signal path, comprises:
First end, is coupled to this blueness video signal end points, and
The second end, is coupled to this blueness video signal Port;
Vertical synchronizing signal path, comprises:
First end, is coupled to this vertical synchronizing signal end points, and
The second end, is coupled to this vertical synchronizing signal Port;
Horizontal synchronization signal path, comprises:
First end, is coupled to this horizontal synchronization signal end points, and
The second end, is coupled to this horizontal synchronization signal Port;
The first resistance, comprises:
First end, is coupled on this horizontal synchronization signal path; And
The second end, is coupled to a low-voltage end;
The second resistance, comprises:
First end, is coupled on this horizontal synchronization signal path; And
The second end; And
The first switch, comprises:
First end, is coupled to this second end of this second resistance;
The second end, is coupled to this low-voltage end; And
Control end, in order to control the whether conducting of this first switch;
Wherein in the time that four-wire type exterior video signal source is coupled to this video signal linkage interface, this four-wire type exterior video signal source provides this vertical synchronizing signal to this horizontal synchronization signal Port, and this first switch of meeting conducting, this second resistance is coupled between this low-voltage end and this horizontal synchronization signal path, so that this first resistance is in parallel with this second resistance by this first switch; In the time that five-line exterior video signal source couples this video signal linkage interface, this five-line exterior video signal source provides this vertical synchronizing signal to this vertical synchronizing signal Port, and can this first switch of not conducting.
Preferably, this display separately comprises vertical synchronizing signal detecting module, comprises:
Electric capacity, comprises:
First end; And
The second end, is coupled to this low-voltage end;
The 3rd resistance, comprises:
First end, is coupled to high voltage end; And
The second end, is coupled to this control end of this first switch;
Diode, comprises:
Anode, is coupled on this vertical synchronizing signal path; And
Negative electrode, is coupled to this first end of this electric capacity; And
Second switch, comprises:
First end, is coupled to this second end of the 3rd resistance;
The second end, is coupled to this low-voltage end; And
Control end, is coupled to this negative electrode of this diode.
Preferably, this first switch and this second switch are N-type metal-oxide-semiconductor (MOS) electric crystal.
Preferably, the resistance of this first resistance is much larger than the resistance of this second resistance.
Preferably, this video signal linkage interface is D-sub video signal linkage interface, HD video signal linkage interface, DB video signal linkage interface or HDB video signal linkage interface.
For achieving the above object, the present invention's the second technical scheme provides a kind of control method of display, and this display comprises video signal linkage interface, inner distribution interface, horizontal synchronization signal path, the first resistance, the second resistance and the first switch; The horizontal synchronization signal Port of this video signal linkage interface is coupled to the horizontal synchronization signal end points at this distribution interface, inside by this horizontal synchronization signal path, this first resistance is coupled between this horizontal synchronization signal path and low-voltage end, this second resistance is coupled between the first end of this horizontal synchronization signal path and this first switch, the second end of this first switch is coupled to this low-voltage end, and the method comprises:
When four-wire type exterior video signal source couples this video signal linkage interface, and when this four-wire type exterior video signal source provides vertical synchronizing signal to this horizontal synchronization signal Port, the control end of controlling this first switch makes this first switch conduction, this second resistance is couple between this low-voltage end and this horizontal synchronization signal path, so that this first resistance is in parallel with this second resistance by this first switch.
Preferably, this control end of controlling this first switch refers to this first switch conduction:
This control end of controlling this first switch with any one in graphical user interface, toggle switch, integrated circuit or single knife switch makes this first switch conduction.
Preferably, this distribution interface, inside more comprises vertical synchronizing signal end points, this vertical synchronizing signal end points is coupled to the vertical synchronizing signal Port of this video signal linkage interface by this vertical synchronizing signal path, this display more comprises vertical synchronizing signal detecting module, this vertical synchronizing signal detecting module is coupled to this control end of this vertical synchronizing signal path and this first switch, this control end of wherein controlling this first switch refers to this first switch conduction: this control end of this this first switch of vertical synchronizing signal detecting module control makes this first switch conduction.
For achieving the above object, the present invention's the 3rd technical scheme provides a kind of control method of display, and this display comprises video signal linkage interface, inner distribution interface, horizontal synchronization signal path, the first resistance, the second resistance and the first switch; The horizontal synchronization signal Port of this video signal linkage interface is coupled to the horizontal synchronization signal end points at this distribution interface, inside by this horizontal synchronization signal path, this first resistance is coupled between this horizontal synchronization signal path and low-voltage end, this second resistance is coupled between the first end of this horizontal synchronization signal path and this first switch, the second end of this first switch is coupled to this low-voltage end, and the method comprises:
When five-line exterior video signal source couples this video signal linkage interface, and this five-line exterior video signal source is while providing the vertical synchronizing signal Port of vertical synchronizing signal to this video signal linkage interface, and the control end of controlling this first switch makes this not conducting of the first switch.
Preferably, this control end of controlling this first switch refers to this first switch conduction:
This control end of controlling this first switch with any one in graphical user interface, toggle switch, integrated circuit or single knife switch makes this not conducting of the first switch.
Preferably, this distribution interface, inside more comprises vertical synchronizing signal end points, this vertical synchronizing signal end points is coupled to the vertical synchronizing signal Port of this video signal linkage interface by vertical synchronizing signal path, this display more comprises vertical synchronizing signal detecting module, this vertical synchronizing signal detecting module is coupled to this control end of this vertical synchronizing signal path and this first switch, this control end of wherein controlling this first switch makes this not conducting of the first switch, for this control end of this this first switch of vertical synchronizing signal detecting module control makes this not conducting of the first switch.
Compare with prior art, by the display and the control method thereof that use the embodiment of the present invention to disclose, video signal linkage interface is compatible in three-wire type exterior video signal source, four-wire type exterior video signal source and five-line exterior video signal source, and the inconsistent situation of unlikely generation impedance.
Brief description of the drawings
Fig. 1 is the schematic diagram of five-line linkage interface of the prior art.
Fig. 2 is the schematic diagram of the display of the embodiment of the present invention.
Fig. 3 is the schematic diagram of the display of another embodiment of the present invention.
Fig. 4 is the flow chart of the display control method of the embodiment of the present invention.
Embodiment
Please refer to Fig. 2.Fig. 2 is the schematic diagram of the display 200 of embodiment of the present invention exposure.Fig. 2 is visible, and display 200 comprises video signal linkage interface 210, inner distribution interface 220, red video signal path 281, green video signal path 282, blue video signal path 283, vertical synchronizing signal path 284, horizontal synchronization signal path 285, the first resistance 291, the second resistance 292 and the first switch 270.Video signal linkage interface 210 comprises: red video signal Port 2101, in order to receive red video signal; Green video signal Port 2102, in order to receive green video signal; Blue video signal Port 2103, in order to receive blue video signal; Vertical synchronizing signal Port 2104, in order to receive vertical synchronizing signal; And horizontal synchronization signal Port 2105, in order to receive horizontal synchronization signal and/or vertical synchronizing signal.Inner distribution interface 220 comprises red video signal end points 2201, green video signal end points 2202, blue video signal end points 2203, vertical synchronizing signal end points 2204 and horizontal synchronization signal end points 2205.Red video signal path 281 has first end and the second end, wherein the first end in this redness video signal path 281 is coupled to this redness video signal end points 2201, and second end in this redness video signal path 281 is coupled to this redness video signal Port 2101.Green video signal path 282 has first end and the second end, and the first end in this green video signal path 282 is coupled to this green video signal end points 2202, and its second end is coupled to this green video signal Port 2102.Blue video signal path 283 comprises first end and the second end, and its first end is coupled to this blueness video signal end points 2203, and its second end is coupled to this blueness video signal Port 2103.Vertical synchronizing signal path 284 comprises first end and the second end, and its first end is coupled to this vertical synchronizing signal end points 2204, and its second end is coupled to this vertical synchronizing signal Port 2104.Horizontal synchronization signal path 285 comprises first end and the second end, and its first end is coupled to this horizontal synchronization signal end points 2205, and its second end is coupled to this horizontal synchronization signal Port 2105.The first resistance 291 comprises first end and the second end, and its first end is coupled on this horizontal synchronization signal path 285, and its second end is coupled to low-voltage end.The second resistance 292 comprises first end and the second end, and its first end is coupled on this horizontal synchronization signal path 285.The first switch 270 comprises first end, the second end and control end, and its first end is coupled to the second end of this second resistance 292, and the second end of this first switch 270 is coupled to this low-voltage end, and this control end is in order to control whether conducting of this first switch 270.
As mentioned above, red video signal Port 2101 is coupled to red video signal end points 2201 by red video signal path 281; Green video signal Port 2102 is coupled to green video signal end points 2202 by green video signal path 282; Blue video signal Port 2103 is coupled to blue video signal end points 2203 by blue video signal path 283; Vertical synchronizing signal Port 2104 is coupled to vertical synchronizing signal end points 2204 by vertical synchronizing signal path 284; And horizontal synchronization signal Port 2105 is coupled to horizontal synchronization signal end points 2205 by horizontal synchronization signal path 285.In addition, horizontal synchronization signal path 285 is coupled to low-voltage end by the first resistance 291, for example, hold.Horizontal synchronization signal path 285 also as shown in Figure 2, is coupled to low-voltage end (being for example ground end) by the second resistance 292 and the first switch 270.Wherein, the value of the first resistance 291 is much larger than the second resistance 292, and for example, the first resistance 291 can be for example the resistance of 2.2k Ω, and the second resistance 292 can be for example the resistance of 77 Ω.
According to standard criterion, when three-wire type linkage interface receives the signal from three-wire type exterior video signal source, adopt sync signal and green signal to integrate (sync on green; SOG) technology, therefore vertical synchronizing signal and horizontal synchronization signal receive by green video signal Port 2102, need not consider that vertical synchronizing signal Port and horizontal synchronization signal Port are coupled to the resistance value of holding.In the time that five-line linkage interface receives from the signal in five-line exterior video signal source, horizontal synchronization signal end points need be coupled to the impedance that about 2.2k Ω extremely holds.In the time that four-wire type linkage interface receives from the signal in four-wire type exterior video signal source, vertical synchronizing signal and horizontal synchronization signal all for example, are received by same end points (being horizontal synchronization signal end points), and this end points need be coupled to the impedance that approximately 75 Ω extremely hold, and uses as dividing potential drop.
According to the embodiment of the present invention shown in Fig. 2, for example, in the time that four-wire type exterior video signal source (being high-order Medical Instruments) is coupled to video signal linkage interface 210, four-wire type exterior video signal source can all provide vertical synchronizing signal and horizontal synchronization signal to horizontal synchronization signal Port 2105, now according to the embodiment of the present invention, meeting conducting the first switch 270, the second resistance 292 is for example coupled to, between low-voltage end (holding) and horizontal synchronization signal path 285 by the first switch 270, so that the first resistance 291 is in parallel with the second resistance 292, if the first resistance 291 and the second resistance 292 are adopted respectively to the impedance of 2.2k Ω and 77 Ω, the resistance value that can obtain as calculated after in parallel is:
(2.2kΩ×77Ω)/(2.2kΩ+77Ω)=74.396Ω≒75Ω………(a)
From formula (a), in the time that four-wire type exterior video signal source is connected in the video signal linkage interface 210 of Fig. 2, be connected in the horizontal synchronization signal path 285 of horizontal synchronization signal Port 2105 and low-voltage end (as hold) between resistance value be the first resistance 291 and the value in parallel of the second resistance 292, its value is about 75 Ω, can meet standard criterion and makes the normal signal that receives of video signal linkage interface 210.
For example, in the time that five-line exterior video signal source (being audio and video player) couples video signal linkage interface 210, five-line exterior video signal source provides respectively vertical synchronizing signal and horizontal synchronization signal to vertical synchronizing signal Port 2104 and horizontal synchronization signal Port 2105, now according to the embodiment of the present invention, not conducting the first switch 270, therefore be connected in the value that for example, resistance value between horizontal synchronization signal path 285 and the low-voltage end (holding) of horizontal synchronization signal Port 2105 equals the first resistance 291, namely 2.2k Ω, can meet standard criterion and make the normal signal that receives of video signal linkage interface 210.
Therefore, the display 200 that the embodiment of the present invention of Fig. 2 discloses, can only be compatible to three-wire type, four-wire type and five-line exterior video signal source with same video signal linkage interface 210, and need not adopt separately adapter or the different video signal linkage interface of the many covers of configuration for five-line exterior video signal source and four-wire type five-line exterior video signal source.The whether conducting of above-mentioned control the first switch 270, can control by any one of graphical user interface (GUI), toggle switch, integrated circuit, circuit for detecting or single knife switch voltage level of the control end of the first switch 270, to control the whether conducting of the first switch 270.
Please refer to Fig. 3, Fig. 3 is the schematic diagram of the display 300 of another embodiment of the present invention exposure.
Wherein, video signal linkage interface 300, inner distribution interface 320, red video signal path 381, green video signal path 382, blue video signal path 383, vertical synchronizing signal path 384, horizontal synchronization signal path 385, the first resistance 391, the second resistance 392, the first switch 370, red video signal Port 3101, green video signal Port 3102, blue video signal Port 3103, vertical synchronizing signal Port 3104, horizontal synchronization signal Port 3105, red video signal end points 3201, green video signal end points 3202, blue video signal end points 3203, the setting of vertical synchronizing signal end points 3204 and horizontal synchronization signal end points 3205 and circuit connecting mode are same as shown in the embodiment of Fig. 2, so repeat no more.
Embodiment shown in Fig. 3 separately comprises vertical synchronizing signal detecting module 330, and it comprises electric capacity 341, diode 351, the 3rd resistance 393 and second switch 371.Electric capacity 341 comprises first end and the second end, and the second end of this electric capacity 341 is coupled to this low-voltage end.The 3rd resistance 393 comprises first end and the second end, and the first end of the 3rd resistance 393 is coupled to high voltage end.Second switch 371 comprises first end, the second end and control end, the first end of this second switch 371 is coupled to the second end of the 3rd resistance 393, the second end of this second switch 371 is coupled to this low-voltage end, and the control end of this second switch 371 is coupled to this negative electrode of this diode.
Wherein, the anode of diode 351 is coupled to vertical synchronizing signal path 384, and negative electrode is coupled to the first end of electric capacity 341 and the control end of second switch 371; The second end of electric capacity 341 is coupled to low-voltage end (for example holding); The first end of the 3rd resistance 393 is coupled to high voltage end (for example power end), and the second end is coupled to the first end of second switch 371 and the control end of the first switch 370; The second end of second switch 371 is coupled to low-voltage end.Vertical synchronizing signal detecting module 330 in order to the principle of detecting vertical synchronizing signal is:
(1) if there is vertical synchronizing signal input vertical synchronizing signal Port 3104, the anode of diode 351 and negative electrode have cross-pressure thereupon, make diode 351 conductings, and start electric capacity 341 to charge, treat that electric capacity 341 charges to the voltage quasi position of its first end enough high, can make also enough height and the conducting second switch 371 of voltage quasi position of the control end of second switch 371, now the control end of the first switch 370 is connected in low-voltage end by second switch 371, make the first switch 370 not conductings, the first resistance 391 that is connected to horizontal synchronization signal path 385 is also therefore not in parallel with the second resistance 392,
(2) if there is no vertical synchronizing signal input vertical synchronizing signal Port 3104, the anode of diode 351 and negative electrode do not have cross-pressure thereupon, make diode 351 not conductings, electric capacity 341 cannot charge, electric capacity 341 the voltage quasi position of first end cannot raise, the voltage quasi position of the control end of second switch 371 also cannot be raise, thereby not conducting second switch 371, now the control end of the first switch 370 is connected in high voltage end by the 3rd resistance 393, make the control end of the first switch 370 there is the inferior high voltage after dividing potential drop, and then make the first switch 370 conductings, cause the second resistance 392 to be coupled between horizontal synchronization signal path 385 and low-voltage end by the first switch 370, the first resistance 391 that is connected to horizontal synchronization signal path 385 is thereupon in parallel with the second resistance 392.
Above-mentioned situation (1), because of vertical synchronizing signal input vertical synchronizing signal Port 3104, vertical synchronizing signal detecting module 330 can judge that its corresponding exterior video signal source belongs to five-line (R.G.B.H.V) exterior video signal source, and wherein vertical synchronizing signal separates input with horizontal synchronization signal.Above-mentioned situation (2), because of vertical synchronizing signal input level sync signal Port 3105 but not vertical synchronizing signal Port 3104, vertical synchronizing signal detecting module 330 can judge that its corresponding exterior video signal source belongs to four-wire type (R.G.B.H+V.) exterior video signal source, and wherein vertical synchronizing signal and horizontal synchronization signal are inputted same signal port.
Please arrange in pairs or groups Fig. 2 and Fig. 3, and with reference to figure 4.Fig. 4 is the flow chart of the display control method 400 of the embodiment of the present invention, and its step is as follows:
Step 401: when exterior video signal source is coupled to video signal linkage interface, vertical synchronizing signal inputs to receive the horizontal synchronization signal Port of horizontal synchronization signal? if so, enter step 402; If not, enter step 403;
Step 402: be judged as four-wire type exterior video signal source, by the first switch conduction being coupled between the second resistance and low-voltage end, so that the second resistance is connected between horizontal synchronization signal path and low-voltage end, and with same to be connected in the first resistance between horizontal synchronization signal path and low-voltage end in parallel.
Step 403: be judged as five-line exterior video signal source, by the first not conducting of switch being coupled between the second resistance and low-voltage end, so that the second resistance cannot be connected between horizontal synchronization signal path and low-voltage end, thereby with to be connected in the first resistance between horizontal synchronization signal path and low-voltage end not in parallel.
The value of the first resistance of mentioning in Fig. 2 described above, Fig. 3 and Fig. 4 can be for example 2.2k Ω, and the value of the second resistance can be for example 75 Ω.By the method for the embodiment of Fig. 4, can reach the same video signal linkage interface effect compatible with five-line exterior video signal source with four-wire type exterior video signal source of holding concurrently.
The present invention is applicable to the video signal linkage interfaces such as the common D-sub of current industry, VGA connector, DB, HDB, HD.Taking the D-Sub15 of 15 stitch as example, it is the 1st years old, 2, 3, 14 and 13 pin positions are respectively red video signal Port, green video signal Port, blue video signal Port, vertical synchronizing signal Port and horizontal synchronization signal Port, in prior art, because of horizontal synchronization signal path corresponding to four-wire type exterior video signal source (in order to receive horizontal synchronization signal and vertical synchronizing signal) the required resistance value coupling (75 Ω), be different from the required resistance value coupling in horizontal synchronization signal path corresponding to five-line exterior video signal source (2.2k Ω), therefore display user is forced four-wire type exterior video signal source and five-line exterior video signal source arranges two cover video signal linkage interfaces, or employing adapter, a display can be connected in different exterior video signal source.This not only causes user's inconvenience, also increases hardware cost, is unfavorable for commercial specification.Through adopting display and the control method of the embodiment of the present invention, can only be compatible to three-wire type, four-wire type and five-line exterior video signal source with single video signal linkage interface, the linkage interface of display can be succinct.In addition, if the display that further adopts Fig. 3 embodiment for example to disclose, more can four-wire type exterior video signal source, automatic decision exterior video signal source or five-line exterior video signal source, and internal driving is adjusted into automatically to the effect that meets standard criterion.
Total the above, the present invention is for promoting this area user's use experience and the hardware specification of improving product, real helpful.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the claims in the present invention change and modify, and all should belong to covering scope of the present invention.

Claims (11)

1. a display, is characterized in that, comprises:
Video signal linkage interface, comprises:
Red video signal Port, in order to receive red video signal;
Green video signal Port, in order to receive green video signal;
Blue video signal Port, in order to receive blue video signal;
Vertical synchronizing signal Port, in order to receive vertical synchronizing signal; And
Horizontal synchronization signal Port, in order to receive horizontal synchronization signal and/or this vertical synchronizing signal;
Inner distribution interface, comprises red video signal end points, green video signal end points, blue video signal end points, vertical synchronizing signal end points and horizontal synchronization signal end points;
Red video signal path, comprises:
First end, is coupled to this redness video signal end points; And
The second end, is coupled to this redness video signal Port;
Green video signal path, comprises:
First end, is coupled to this green video signal end points, and
The second end, is coupled to this green video signal Port;
Blue video signal path, comprises:
First end, is coupled to this blueness video signal end points, and
The second end, is coupled to this blueness video signal Port;
Vertical synchronizing signal path, comprises:
First end, is coupled to this vertical synchronizing signal end points, and
The second end, is coupled to this vertical synchronizing signal Port;
Horizontal synchronization signal path, comprises:
First end, is coupled to this horizontal synchronization signal end points, and
The second end, is coupled to this horizontal synchronization signal Port;
The first resistance, comprises:
First end, is coupled on this horizontal synchronization signal path; And
The second end, is coupled to low-voltage end;
The second resistance, comprises:
First end, is coupled on this horizontal synchronization signal path; And
The second end; And
The first switch, comprises:
First end, is coupled to this second end of this second resistance;
The second end, is coupled to this low-voltage end; And
Control end, in order to control the whether conducting of this first switch;
Wherein in the time that four-wire type exterior video signal source is coupled to this video signal linkage interface, this four-wire type exterior video signal source provides this vertical synchronizing signal to this horizontal synchronization signal Port, and this first switch of meeting conducting, this second resistance is coupled between this low-voltage end and this horizontal synchronization signal path, so that this first resistance is in parallel with this second resistance by this first switch; In the time that five-line exterior video signal source couples this video signal linkage interface, this five-line exterior video signal source provides this vertical synchronizing signal to this vertical synchronizing signal Port, and this first switch of not conducting.
2. display as claimed in claim 1, is characterized in that, separately comprises vertical synchronizing signal detecting module, and this vertical synchronizing signal detecting module comprises:
Electric capacity, comprises:
First end; And
The second end, is coupled to this low-voltage end;
The 3rd resistance, comprises:
First end, is coupled to high voltage end; And
The second end, is coupled to this control end of this first switch;
Diode, comprises:
Anode, is coupled on this vertical synchronizing signal path; And
Negative electrode, is coupled to this first end of this electric capacity; And
Second switch, comprises:
First end, is coupled to this second end of the 3rd resistance;
The second end, is coupled to this low-voltage end; And
Control end, is coupled to this negative electrode of this diode.
3. display as claimed in claim 2, is characterized in that, this first switch and this second switch are N-type metal-oxide-semiconductor (MOS) electric crystal.
4. display as claimed in claim 1, is characterized in that, the resistance of this first resistance is much larger than the resistance of this second resistance.
5. display as claimed in claim 1, is characterized in that, this video signal linkage interface is D-sub video signal linkage interface, HD video signal linkage interface, DB video signal linkage interface or HDB video signal linkage interface.
6. a control method for display, is characterized in that, this display comprises video signal linkage interface, inner distribution interface, horizontal synchronization signal path, the first resistance, the second resistance and the first switch; The horizontal synchronization signal Port of this video signal linkage interface is coupled to the horizontal synchronization signal end points at this distribution interface, inside by this horizontal synchronization signal path, this first resistance is coupled between this horizontal synchronization signal path and low-voltage end, this second resistance is coupled between the first end of this horizontal synchronization signal path and this first switch, the second end of this first switch is coupled to this low-voltage end, and the method comprises:
When four-wire type exterior video signal source couples this video signal linkage interface, and when this four-wire type exterior video signal source provides vertical synchronizing signal to this horizontal synchronization signal Port, the control end of controlling this first switch makes this first switch conduction, this second resistance is couple between this low-voltage end and this horizontal synchronization signal path, so that this first resistance is in parallel with this second resistance by this first switch.
7. method as claimed in claim 6, is characterized in that, this control end of controlling this first switch refers to this first switch conduction:
This control end of controlling this first switch with any one in graphical user interface, toggle switch, integrated circuit or single knife switch makes this first switch conduction.
8. method as claimed in claim 6, it is characterized in that, this distribution interface, inside more comprises vertical synchronizing signal end points, this vertical synchronizing signal end points is coupled to the vertical synchronizing signal Port of this video signal linkage interface by this vertical synchronizing signal path, this display more comprises vertical synchronizing signal detecting module, this vertical synchronizing signal detecting module is coupled to this control end of this vertical synchronizing signal path and this first switch, this control end of wherein controlling this first switch makes this first switch conduction, for this control end of this this first switch of vertical synchronizing signal detecting module control makes this first switch conduction.
9. a control method for display, is characterized in that, this display comprises video signal linkage interface, inner distribution interface, horizontal synchronization signal path, the first resistance, the second resistance and the first switch; The horizontal synchronization signal Port of this video signal linkage interface is coupled to the horizontal synchronization signal end points at this distribution interface, inside by this horizontal synchronization signal path, this first resistance is coupled between this horizontal synchronization signal path and low-voltage end, this second resistance is coupled between the first end of this horizontal synchronization signal path and this first switch, the second end of this first switch is coupled to this low-voltage end, and the method comprises:
When five-line exterior video signal source couples this video signal linkage interface, and this five-line exterior video signal source is while providing the vertical synchronizing signal Port of vertical synchronizing signal to this video signal linkage interface, and the control end of controlling this first switch makes this not conducting of the first switch.
10. method as claimed in claim 9, is characterized in that, this control end of controlling this first switch refers to this first switch conduction:
This control end of controlling this first switch with any one in graphical user interface, toggle switch, integrated circuit or single knife switch makes this not conducting of the first switch.
11. methods as claimed in claim 9, it is characterized in that, this distribution interface, inside more comprises vertical synchronizing signal end points, this vertical synchronizing signal end points is coupled to the vertical synchronizing signal Port of this video signal linkage interface by vertical synchronizing signal path, this display more comprises vertical synchronizing signal detecting module, this vertical synchronizing signal detecting module is coupled to this control end of this vertical synchronizing signal path and this first switch, this control end of wherein controlling this first switch makes this not conducting of the first switch, for this control end of this this first switch of vertical synchronizing signal detecting module control makes this not conducting of the first switch.
CN201410267504.XA 2014-06-16 2014-06-16 Display and control method thereof Expired - Fee Related CN104052953B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410267504.XA CN104052953B (en) 2014-06-16 2014-06-16 Display and control method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410267504.XA CN104052953B (en) 2014-06-16 2014-06-16 Display and control method thereof

Publications (2)

Publication Number Publication Date
CN104052953A true CN104052953A (en) 2014-09-17
CN104052953B CN104052953B (en) 2017-04-12

Family

ID=51505279

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410267504.XA Expired - Fee Related CN104052953B (en) 2014-06-16 2014-06-16 Display and control method thereof

Country Status (1)

Country Link
CN (1) CN104052953B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1096789C (en) * 1996-04-16 2002-12-18 Lg电子株式会社 Input signal switching circuit of monitor and switching method thereof
TW200608332A (en) * 2004-05-25 2006-03-01 Samsung Electronics Co Ltd Display device
WO2008024424A2 (en) * 2006-08-22 2008-02-28 Rgb Systems, Inc. Method and apparatus for dc restoration using feedback
US20080068501A1 (en) * 2006-09-06 2008-03-20 Rgb Systems, Inc. Automatic video format identification system
US20100194994A1 (en) * 2009-02-04 2010-08-05 Via Technologies, Inc. Dual Mode DP and HDMI Transmitter
TW201129253A (en) * 2009-10-07 2011-08-16 Lemnis Lighting Patent Holding B V Dimmable lighting system
EP2410412A2 (en) * 2010-07-22 2012-01-25 Fujitsu Component Limited Method of detecting position on touchscreen panel, touchscreen panel, and method of initializing touchscreen panel

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1096789C (en) * 1996-04-16 2002-12-18 Lg电子株式会社 Input signal switching circuit of monitor and switching method thereof
TW200608332A (en) * 2004-05-25 2006-03-01 Samsung Electronics Co Ltd Display device
WO2008024424A2 (en) * 2006-08-22 2008-02-28 Rgb Systems, Inc. Method and apparatus for dc restoration using feedback
US20080068501A1 (en) * 2006-09-06 2008-03-20 Rgb Systems, Inc. Automatic video format identification system
US20100194994A1 (en) * 2009-02-04 2010-08-05 Via Technologies, Inc. Dual Mode DP and HDMI Transmitter
TW201129253A (en) * 2009-10-07 2011-08-16 Lemnis Lighting Patent Holding B V Dimmable lighting system
EP2410412A2 (en) * 2010-07-22 2012-01-25 Fujitsu Component Limited Method of detecting position on touchscreen panel, touchscreen panel, and method of initializing touchscreen panel
CN102346616A (en) * 2010-07-22 2012-02-08 富士通电子零件有限公司 Method of detecting position on touchscreen panel, touchscreen panel, and method of initializing touchscreen panel

Also Published As

Publication number Publication date
CN104052953B (en) 2017-04-12

Similar Documents

Publication Publication Date Title
CN102655580B (en) Method and apparatus for image procossing
US9836085B2 (en) Portable docking device capable of projecting video content
CN101150695A (en) A device and method for automatically monitoring outside top input interface of TV set
CN102946518A (en) Plug-in card type multimedia demonstration matrix switcher
JP2011229110A (en) Electronic apparatus and power control method
CN207884797U (en) A kind of television set board testing host and equipment
CN201191895Y (en) Automatic multi-group HDMI audio and video signal switch
RU2683615C1 (en) Interface identification method and terminal
CN104052953A (en) Display and control method thereof
JP2013118490A (en) Determination circuit
TWI587706B (en) Display and control method thereof
CN105611218A (en) Video conference switching system
CN104994320B (en) A kind of HDMI service equipments
EP2071829A1 (en) Signal processing apparatus and control method thereof
TW201509182A (en) Signal relaying circuit, signal receiving circuit, signal relaying method and signal receiving method
CN208863013U (en) A kind of HDMI input hot plug detection circuit
CN112653856A (en) Method for controlling volume equipment by intelligently switching audio output equipment of laser projection television
CN201491148U (en) Signal output circuit for signal source
CN205792498U (en) A kind of pull down resistor on-off circuit
TWI565953B (en) Display signal test fixture and test method
CN203932597U (en) Many interface adapters
CN104464681B (en) Signal converting circuit and forwarding method and signal receiving circuit and method of reseptance
CN105744216A (en) Video monitoring device
CN201986082U (en) Video signal detection circuit and television
CN100514077C (en) Device for detecting connection state of audio-visual apparatus and external apparatus

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
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: 20170412

Termination date: 20210616