CN1838727A - Display equipment and signal source detecting method in display equipment - Google Patents
Display equipment and signal source detecting method in display equipment Download PDFInfo
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- CN1838727A CN1838727A CN 200510055761 CN200510055761A CN1838727A CN 1838727 A CN1838727 A CN 1838727A CN 200510055761 CN200510055761 CN 200510055761 CN 200510055761 A CN200510055761 A CN 200510055761A CN 1838727 A CN1838727 A CN 1838727A
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Abstract
This invention discloses a display device, which includes: input information connector module, which includes one or more information source connectors used for connecting the external information source of the display device; checking module, which is to check the usability of the information source of the input connector module and output the result to the front picture dealing module; front dealing module, which is to deal with the information source from the checking device and display the output information. This invention also discloses a signal checking method in the display device.
Description
Technical field
The present invention relates to the display device technical field, be meant the signal source detecting method in a kind of display device and the display device especially.
Background technology
Display device is used to show various information, is widely used in aspects such as office, teaching, amusement, commercial exhibition.Existing display device comprises types such as cathode ray tube (CRT) display, LCD (LCD), light-emitting diode (LED) display, plasma scope (PDP), projector.
Can carry out the video signal displayed kind for display device at present increases day by day, therefore a part of display device especially large-screen display equipment such as projector all have more than one signal source interface usually, can receive different types of vision signal from multiple signal source equipment and show.With the projector is example, has the signal source interface of following kind usually: Video Graphics Array (vGA) interface, digital vision (DVI) interface, S-terminal (S-Video) interface, composite video signal (Composite Video) interface, component video signal (Component Video) interface etc.Can be by these interfaces from multiple different signal source equipment, for example: the different types of vision signals of reception such as computer, DVD player, video tape recorder show, vision signal can comprise VGA signal, DVI signal, S-Video signal, composite video signal, component video signal etc., the signal source interface that wherein has can receive the vision signal of more than one types again, and for example the VGA interface both can receive the VGA signal and also can receive component video signal.
For the display device of having of a standard of above-mentioned signal source interface, its system forms as shown in Figure 1, and whole display device is by electronic system 101, and display device 102 and power supply 103 are formed.Wherein, power supply 103 is responsible for to each part power supply in the display device, comprise several signal source interfaces in the input signal interface module 104 in the electronic system 101, as VGA interface, DVI interface etc., display device receives the outer signals source device by these signal source interfaces, vision signal as computer 1, computer 2 108, DVD player 109 outputs, the signal that receives is sent in the front end image processing module 105 handles, show by driver module 106 driving display spares 102 again.
After display device starts, or after the signal source that is showing stopped to show, display device just may be in no show state, in this state, needs the search signal source to show for display device.In the prior art, the method in search signal source is in the display device: the front end image processing module is by predefined order, the state in the video frequency processing chip request signal source by wherein after inquiring effective signal source, obtains signal by this effective signal source and shows.
For example, comprise two video frequency processing chips of analog to digital converter (ADC) and Video Decoder (Video Decoder) in the front end image processing module of display device, the signal source interface that wherein links to each other with ADC comprises VGA interface and DVI interface, and the signal source interface that links to each other with Video Decoder comprises S-Video, Composite Video and Component Video; Then when display device search signal source, elder generation inquires about the VGA interface successively by ADC and whether the DVI interface has inserted the useful signal source, if VGA interface and DVI interface all do not insert effective signal source, inquire about S-Video, Composite Video successively by Video Decoder again and whether Component Video has inserted effective signal source.In this process, no matter which video frequency processing chip to have inquired effective signal source by, display device just stops search, and obtains signal by this effective signal source, and shows.
Because in above-mentioned searching method, by whether the signal source interface inserted effective signal source inquired about one by one of the video decoding chip in the front end image processing module, need consumed time long, cause the unnecessary wait of user, wasted user's time.
Summary of the invention
In view of this, first main purpose of the present invention is to provide a kind of display device, and this display device can be saved the time in search signal source.
Second main purpose of the present invention is to provide the signal source detecting method in a kind of display device, and this method can be saved the time in search signal source.
Be first aspect that achieves the above object, the invention provides a kind of display device, this display device comprises:
Input signal interface module (104) comprises one or more signal source interface, is used to insert the outside source of display device;
Signal source checkout gear (200) is used for the availability in the signal source interface respective signal source of input signal interface module (104) is detected, and the object information that detection obtains is outputed to front end image processing module (105);
Front end image processing module (105) is used for the object information according to the output of signal source checkout gear, available signal source is handled, and the output of the signal after will handling is to show.
Described front end image processing module (105) can be further used for the object information according to signal source checkout gear sensed signal sources availability, and the validity in available signal source is detected.
Described signal source checkout gear (200) can be made up of transducer (301,302......).
Described transducer can be mechanical pick-up device and/or optical pickocff.
Described signal source checkout gear (200) can also be realized by signal processing circuit.
Described signal processing circuit can comprise: voltage comparator (1201) and/or video synchronization signal separate integrated circuit (1202,1203,1204).
Described signal source checkout gear detects the object information that obtains can comprise signal source information available and the disabled information of signal source;
Then described display device further comprises: circuit (1101,1301) is selected in the available signal source, is used for obtaining described object information signal source information available, and the signal source information available of obtaining is outputed to front end image processing module (105).
Preferably, described available signal source selection circuit (1101,1301) is realized by microcontroller.
May further include in the described input signal interface module (104): Digital Visual Interface, the pin of sign access signal source directly is connected with front end image processing module (105) in the described Digital Visual Interface;
Described front end image processing module (105) is further used for the pin of sign access signal source in the Digital Visual Interface is detected, and obtains the usability results information of this Digital Visual Interface.
For second aspect that achieve the above object, the invention provides the signal source detecting method in a kind of display device, this method comprises:
A, display device detect the availability in the signal source interface respective signal source of self;
B, display device show this signal source after detecting available signal source.
This method may further include:
For the signal source interface in the display device is provided with corresponding sensor;
Described steps A is: whether display device inserts signal source by set transducer to corresponding signal source interface is detected.
This method also may further include:
Signalization treatment circuit in display device;
Described steps A is: whether display device receives the predefined correct signal of telecommunication by described signal processing circuit to the signal source interface is detected.
Among the described step B, before this signal source shown, may further include:
This signal source information available is shown to the user, and after detecting the user and selecting to show this signal source, carries out the described step that this signal source is shown.
Among the described step B, before this signal source shown, can further include:
Display device detects the validity of this signal source, detect this signal source effectively after, carry out the described step that this signal source is shown.
Among the described step B, detect this signal source effectively after, and before this signal source is shown, can further include:
The effective information of this signal source is shown to the user, and after detecting the user and selecting to show this signal source, carries out the described step that this signal source is shown.
As can be seen from the above technical solutions, among the present invention, detect by the availability of signal source checkout gear the signal source interface respective signal source of display device, display device is according to the object information of signal source checkout gear sensed signal sources availability, available signal source is shown, because disabled signal source is not carried out the follow-up processing relevant with demonstration, promptly it is not carried out to showing that the performed validity of this signal source detects, carry out the signal source quantity that validity detects in the search signal source procedure thereby reduced, saved the time in search signal source;
Among the present invention, by being set at the signal source port, realizes on the basis of above-mentioned signal source detection by transducer, select circuit that testing result is handled by the available signal source again, only the information in available signal source is exported to the front end image processing module, thereby needn't all divide to be used in for each signal source at the front end image processing module carries out the pin that availability detects, and has reduced taking the pin of front end image processing module;
Among the present invention, select circuit as above-mentioned available signal source, realized processing easily, and reduced cost testing result with cheap microcontroller;
Among the present invention, realize that by signal processing circuit the availability of signal source detects, needn't transducer be set, only need change, realized the present invention more easily the circuit setting of inside at the signal source interface of display device;
Among the present invention, after in signal processing circuit, passing through realization signal source availabilities detections such as voltage comparator and/or video synchronization signal separation integrated circuit, select circuit by microcontroller as the available signal source again, signal after detecting is handled, send available signal source information to the front end image processing module then, make the available signal source select the with low cost of circuit, implement simplely, and reduced the quantity that takies front end image processing module pin;
Among the present invention, the signal source checkout gear just shows this signal source after detecting signal source and can using, has realized the plug and play of display device signal source, improved the intelligent degree of display device, made display device provide convenient, service more efficiently for the user;
In addition, the present invention, just shows this signal source after the user selects to show this signal source also by this signal source information available is shown to the user, has increased the controllability of display device, has improved the market competitiveness of display device.
Description of drawings
Fig. 1 is system's composition diagram of display device in the prior art;
Fig. 2 is system's composition diagram of display device of the present invention;
The structure chart of Fig. 3 first embodiment of the invention;
Fig. 4 is the composition diagram of an example of first embodiment of the invention;
Fig. 5 is the concrete application schematic diagram of transducer in example of first embodiment of the invention;
Fig. 6 is the composition diagram of another example of first embodiment of the invention;
Fig. 7 is the concrete application schematic diagram of transducer in another example of first embodiment of the invention;
Fig. 8 is the overview flow chart of first embodiment of the invention;
Fig. 9 is the another kind of flow chart of first embodiment of the invention;
Figure 10 is another flow chart of first embodiment of the invention;
Figure 11 is the structure chart of third embodiment of the invention;
Figure 12 is the structure chart of fourth embodiment of the invention;
Figure 13 is the structure chart of fifth embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Main thought of the present invention as shown in Figure 2, wherein, the availability in signal source interface respective signal source detects in 200 pairs of input signal interface modules 104 of signal source checkout gear, and the object information that detects is outputed to the front end image processing module; Front end image processing module 105 is used for the object information according to the output of signal source checkout gear, available signal source is handled, and the output of the signal after will handling is to show.In addition, front end image processing module 105 detects the validity in available signal source also according to the object information of signal source checkout gear sensed signal sources availability among Fig. 2.
Above-mentioned signal source can have been inserted signal source in the signal source interface with being meant, perhaps receives the predefined correct signal of telecommunication in the signal source interface.But after detecting signal source and can using, this signal source might not just have real vision signal, therefore before showing this signal source, also needs the front end image processing module that the validity of signal source is detected.Signal source is meant that effectively the signal that display device obtains by this signal source is the real vision signal that can show.
Above-mentioned signal source checkout gear can directly be realized by transducer, also can realize by signal processing circuit, perhaps after the availability detection of transducer realization, select circuit that the signal source information available is exported by communication interface by the available signal source again to signal source.
In the The above results information, can comprise the disabled information of signal source information available and signal source, the front end image processing module is actually according to the signal source information available in the object information according to the object information of signal source checkout gear sensed signal sources availability.Because for the signal source of signal source information available correspondence, the front end image processing module just carries out validity to it and detects; For the signal source of the unavailable information correspondence of signal source, the front end image processing module does not carry out validity to it and detects, and reduce the front end image processing module and carried out the signal source quantity that validity detects, thus the time of having saved signal source searching.
Among the present invention, after detecting signal source and can using, can directly this signal source information available be shown to the user, and the prompting user selects to show or do not show this signal source, if the user selects to show this signal source, validity to this signal source detects again, and is detecting effective then this signal source the demonstration.After detecting signal source and can using, can also be not the relevant information of this signal source be shown to the user, but directly the validity of this signal source be detected, and this signal source is shown detecting effective back.Perhaps, can also be after detecting signal source and can using, the relevant information with this signal source is not shown to the user, but detect signal source effectively after, the relevant information of this signal source is shown to the user.
The present invention is described in detail below by specific embodiment.
In the first embodiment of the present invention, adopt transducer to realize the availability of signal source is detected.As shown in Figure 3, the signal source checkout gear comprises transducer 301,302......, wherein the corresponding signal source interface of each transducer whether pairing signal source interface has been inserted signal source detected, and the result after will detecting outputs to the front end image processing module.
In Fig. 3, VGA interface, DVI interface, S-Video interface, composite video signal interface and five signal source interfaces of component video signal interface have been comprised in the input signal interface, corresponding comprised 301,302,303,304 and 305 5 transducers in the signal source checkout gear, wherein each transducer is corresponding with a signal source interface.And in fact, the signal source interface of display device may be so not many, have only wherein several, may also have more signal source interface yet, and is corresponding in the implementation procedure of present embodiment, only needs to reduce or increase transducer and getting final product accordingly.
In the present embodiment, need be used for receiving usability status for pin of each sensor assignment, promptly whether insert signal source corresponding to the signal source of this transducer at the front end image processing module.And need in the front end image processing module, set the pairing signal source of pin of distributing, and the pin current potential corresponding relation available with whether.
For example, when sensor after have signal source to insert, the output high level, after then the front end image processing module receives high level by the pin that is connected with this transducer, available according to the pairing signal source interface of this pin and the high level correspondence that wherein are provided with, the low level correspondence is unavailable, can know that corresponding signal source interface has signal source to insert, and promptly has available signal source; Otherwise, when sensor to not having signal source to be inserted at the signal source interface, output low level then, then the pin of front end image processing module by being connected with this transducer knows that corresponding signal source interface does not have signal source to insert.Here, also can in the front end image processing module, be provided with certain pin the low level correspondence for there being signal source to insert, and the high level correspondence for there not being the signal source insertion.
The sensor can be a mechanical pick-up device, as sensitive switch; Optical pickocff is as infrared sensor; Or other can detect the transducer whether the signal source interface has inserted signal source.Respectively as a specific example, the signal source checkout gear in the present embodiment is further specified below with sensitive switch and infrared sensor.
In the circuit structure as shown in Figure 4, the signal source checkout gear corresponding to the signal source interface in the input signal interface have 5 sensitive switches 401,402 ... 405, be used for detecting VGA interface, DVI interface, S-VIDEO interface, composite video signal interface and component video signal interface respectively and whether inserted signal source.Sensitive switch can be as shown in Figure 5 being provided with of signal source interface, and signal source interface wherein is the VGA interface, and sensitive switch is realized getting final product being provided with reference to Fig. 5 of other signal source interfaces.
As shown in Figure 5, Fig. 5 a and Fig. 5 b show is at the state that does not have signal source interface and sensitive switch under the signal source insertion situation.In this state, owing to do not have signal source contact sensitive switch 501, sensitive switch 501 output low levels, the front end image processing module knows that according to the pin current potential that links to each other with this sensitive switch 501 this VGA interface 502 does not have signal source to insert; In Fig. 5 c and Fig. 5 d, then shown situation about inserting after the signal source, after signal source 503 is inserted, touch sensitive switch 501, sensitive switch 501 output high level, front end image processing module 105 knows that according to the pin current potential that links to each other with this sensitive switch 501 this VGA interface 502 has signal source 503 to insert.
In the circuit structure as shown in Figure 6, signal source checkout gear 200 has 5 infrared sensors 601,602......605 corresponding to the signal source interface in the input signal interface, is used for detecting VGA interface, DVI interface, S-VIDEO interface, composite video signal interface and component video signal interface respectively and whether has inserted signal source.Infrared sensor can be as shown in Figure 7 being provided with of signal source interface, and the signal source interface shown in Fig. 7 is the VGA interface, and infrared sensor is realized getting final product being provided with reference to figure 7 of other signal source interfaces.
As shown in Figure 7, infrared sensor comprises infrared transmitter 701 and infrared remote receiver 702, when VGA interface 703 does not insert signal source, shown in Fig. 7 a and Fig. 7 b, infrared remote receiver 702 can receive the infrared signal that infrared transmitter 701 is sent, at this moment infrared remote receiver 702 output low levels, front end image processing module 105 know that according to the pin current potential that links to each other with this infrared remote receiver 702 this VGA interface 703 does not have the signal source insertion; After this VGA interface 703 inserts signal source 704, shown in Fig. 7 c and Fig. 7 d, infrared remote receiver 702 does not receive the infrared signal that infrared transmitter 701 is sent, at this moment infrared remote receiver 702 is exported high level, front end image processing module 105 knows that according to the pin current potential that links to each other with this infrared remote receiver 702 this VGA interface 703 has inserted signal source 704.
In the present embodiment, after the front end image processing module knows that by the pin that is connected with transducer the respective signal source interface has inserted signal source, promptly the validity to this signal source detects, after this, detect this signal source effectively after, can directly show this signal source, also the effective information of this signal source can be shown to the user, after the user has selected this signal source shown, again this signal source is shown.
The overview flow chart of present embodiment as shown in Figure 8, concrete steps are as follows:
Whether the transducer in step 801, the signal source checkout gear has inserted signal source to the corresponding signal source interface is respectively detected, and detected object information is outputed to the front end image processing module;
After step 802, front end image processing module know that according to the object information of transducer output certain signal source interface has inserted signal source, the validity of this signal source is detected, and judge whether detected result is effectively, if effectively then execution in step 803; Otherwise process ends.
As previously mentioned, in flow process shown in Figure 8, can also be in validity that execution in step 802 is judged detected signal source for after effectively, direct execution in step 804, as shown in Figure 9.
Perhaps, can also be in the step 802 of flow process shown in Figure 9, after execution in step 8020, be that the front end image processing module is after knowing that certain signal source interface has inserted signal source, execution in step 8021: this signal source information available is shown to the user, and judges whether the user has selected to show this signal source, if execution in step 8022: the validity to this signal source detects, and judge whether detected result is effective, if detected result effectively carries out follow-up step 804; Otherwise execution in step 8023: the information that this signal source is invalid is shown to the user, then process ends.Above-mentioned steps specifically as shown in figure 10.
It more than is explanation to first embodiment of the invention, in first embodiment, for each signal source interface all is provided with corresponding sensor, but some signal source interface, pin level by himself just can obtain the information whether this signal source interface has inserted signal source, for these signal source interfaces, can not be its signalization source interface.
In the second embodiment of the present invention, just can obtain whether to have inserted the signal source interface of signal source for the pin that passes through interface self as the DVI interface, not for it is provided with transducer, directly be connected with the respective pin of front end image processing module but directly can identify the pin that whether has inserted signal source.For example, for the DVI interface, be exactly that direct the 14th pin with the DVI interface is connected with the respective pin of front end image processing module.Like this, after the signal source interface had inserted signal source, it directly linked to each other with the front end image processing module, and the level of the pin of sign usability status will become high level, and the front end image processing module just can know that this signal source interface has inserted signal source.
In the third embodiment of the present invention, in the signal source checkout gear, increase the available signal source and select circuit.The pin that can identify usability status in transducer or the signal source interface at first selects circuit to be connected with the available signal source, the available signal source selects circuit that all signals of importing self are handled, and only sends the signal source information available to the front end image processing module.Like this, in the front end image processing module, just needn't be, and only need distribute the pin of selecting circuit to be connected with the available signal source to get final product for each signal source interface all distribute corresponding pin, reduced the quantity that signal source detects shared front end image processing module pin.
Because present microcontroller technology is very ripe, can realize the function of above-mentioned available signal source selection circuit easily by microcontroller, so in Figure 11, be the structure of example explanation present embodiment signal source checkout gear with microcontroller 8051.As shown in figure 11, the pairing transducer 301 of each signal source interface, 302, ... be connected with microcontroller, microcontroller 1101 detects the availability in the signal institute respective signal source of each transducer output that is connected to self, after the level that detects certain transducer output shows that the signal source interface of this transducer correspondence has signal source to insert, signal source interface message and the signal source available event of having inserted signal source information have been about to comprise, by the asynchronous serial communication interface 1101 between microcontroller 1101 and the front end image processing module, 1102 output to front end image processing module 105.After front end image processing module 105 receives the signal source available event, the validity of the signal source of this incident correspondence is detected, and after detecting effectively, directly this signal source is shown; Perhaps, the effective information of this signal source is shown to the user, after the user selects to show this signal source, this signal source is shown.
In above-mentioned three embodiment, mainly realize the detection of signal source availability by transducer, in the present invention, can also whether not insert the availability of the form sensed signal sources of signal source by sensor signal source access interface, but, determine the availability in signal source interface respective signal source by the form that the signal of telecommunication to the signal source interface detects.How to be elaborated by the signal of telecommunication is detected below by the 4th embodiment, to determine the availability in signal source interface respective signal source.
In the fourth embodiment of the present invention, except that the DVI interface, whether inserted vertical synchronizing signal by the signal source interface and carried out the availability detection.As shown in figure 12, comprise in the signal source checkout gear of present embodiment that voltage comparator LM393 separates integrated circuit LM1881 with video synchronization signal.Wherein, voltage comparator 1201 separates integrated circuit 1202,1203,1204 with video synchronization signal output links to each other with front end image processing module 105 respectively, behind voltage comparator 1201 or video synchronization signal separation integrated circuit 1202,1203,1204 output high level, the pin of front end image processing module 105 by being attached thereto just can know that corresponding signal source interface has inserted available signal source.
Wherein, the in-phase input end of voltage comparator 1201 receives the vertical synchronizing signal from the VGA interface, inverting input receives reference voltage source, and this reference voltage source can be+0.5V voltage, and voltage comparator 1201 outputs are connected to front end image processing module 105.After VGA signal source interface has inserted the VGA signal source, to voltage comparator 120t output vertical synchronizing signal, because the crest voltage of vertical synchronizing signal is+0.7V, greater than voltage comparator 1201 reverse input voltage+0.5V, so the voltage that detects its in-phase input end when voltage comparator 1201 will be exported high level greater than behind+the 0.5V.
For S-Video interface, composite video signal interface and component video signal interface, employing video synchronization signal separation integrated circuit is isolated vertical synchronizing signal wherein, and the information output that will whether isolate vertical synchronizing signal.After audio video synchronization separation integrated circuit is isolated vertical synchronizing signal, promptly export high level; Otherwise output low level.Because it has been the known technology of this area that video synchronization signal separates integrated circuit, the principle of video synchronization signal not being separated integrated circuit describes here.
In addition, in the present embodiment, for identical among DVI interface and above-mentioned second embodiment, can directly its 14th pin be connected with the front end image processing module, when the 14th pin forward end image processing module 105 of DVI interface is exported high level, think that promptly this interface has inserted the available signal source.
In the present embodiment, the handling process after the front end image processing module can be used the signal source interface is identical with preceding several embodiment, no longer explanation here.
In the fifth embodiment of the present invention, as shown in figure 13, in Figure 11, increased microcontroller 1301 on the basis of signal processing circuit, identical with the function of microcontroller among the 3rd embodiment, whether the signal source interface of 1301 pairs of receptions of microcontroller has inserted the information in available signal source is handled, and by asynchronous serial communication interface 1302,1303 results after will handling, the signal source available event that has promptly comprised signal source interface message and signal source available information, send front end image processing module 105 to, thereby reduced taking front end image processing module 105 pins.
More than be explanation, in concrete implementation process, can carry out suitable improvement, to adapt to the concrete needs of concrete condition method of the present invention to the specific embodiment of the invention.Therefore be appreciated that according to the specific embodiment of the present invention just to play an exemplary role, not in order to restriction protection scope of the present invention.
Claims (15)
1, a kind of display device comprises:
Input signal interface module (104) comprises one or more signal source interface, is used to insert the outside source of display device;
It is characterized in that this display device also comprises:
Signal source checkout gear (200) is used for the availability in the signal source interface respective signal source of input signal interface module (104) is detected, and the object information that detection obtains is outputed to front end image processing module (105);
Front end image processing module (105) is used for the object information according to the output of signal source checkout gear, available signal source is handled, and the output of the signal after will handling is to show.
2, display device according to claim 1 is characterized in that, described front end image processing module (105) is further used for the object information according to signal source checkout gear (200) sensed signal sources availability, and the validity in available signal source is detected.
3, display device according to claim 2 is characterized in that, described signal source checkout gear (200) is made up of transducer (301,302......).
4, display device according to claim 3 is characterized in that, described transducer is mechanical pick-up device and/or optical pickocff.
5, display device according to claim 2 is characterized in that, described signal source checkout gear (200) is realized by signal processing circuit.
6, display device according to claim 5 is characterized in that, described signal processing circuit comprises: voltage comparator (1201) and/or video synchronization signal separate integrated circuit (1202,1203,1204).
According to arbitrary described display device in the claim 3 to 6, it is characterized in that 7, described signal source checkout gear detects the object information that obtains and comprises signal source information available and the disabled information of signal source;
Described display device further comprises: circuit (1101,1301) is selected in the available signal source, is used for obtaining described object information signal source information available, and the signal source information available of obtaining is outputed to front end image processing module (105).
8, display device according to claim 7 is characterized in that, described available signal source selects circuit (1101,1301) to be realized by microcontroller.
9, according to arbitrary described display device in the claim 1 to 6, it is characterized in that, further comprise in the described input signal interface module (104): Digital Visual Interface, the pin of sign access signal source directly is connected with front end image processing module (105) in the described Digital Visual Interface;
Described front end image processing module (105) is further used for the pin of sign access signal source in the Digital Visual Interface is detected, and obtains the usability results information of this Digital Visual Interface.
10, the signal source detecting method in a kind of display device is characterized in that, this method comprises:
A, display device detect the availability in the signal source interface respective signal source of self;
B, display device show this signal source after detecting available signal source.
11, method according to claim 10 is characterized in that, this method further comprises:
For the signal source interface in the display device is provided with corresponding sensor;
Described steps A is: whether display device inserts signal source by set transducer to corresponding signal source interface is detected.
12, method according to claim 10 is characterized in that, this method further comprises:
Signalization treatment circuit in display device;
Described steps A is: whether display device receives the predefined correct signal of telecommunication by described signal processing circuit to the signal source interface is detected.
13, according to arbitrary described method in the claim 10 to 12, it is characterized in that, among the described step B, before this signal source shown, further comprise:
This signal source information available is shown to the user, and after detecting the user and selecting to show this signal source, carries out the described step that this signal source is shown.
14, according to arbitrary described method in the claim 10 to 12, it is characterized in that, among the described step B, before this signal source shown, further comprise:
Display device detects the validity of this signal source, detect this signal source effectively after, carry out the described step that this signal source is shown.
15, method according to claim 14 is characterized in that, among the described step B, detect this signal source effectively after, and before this signal source is shown, further comprise:
The effective information of this signal source is shown to the user, and after detecting the user and selecting to show this signal source, carries out the described step that this signal source is shown.
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| CN101241038B (en) * | 2007-02-05 | 2011-05-18 | 佳世达科技股份有限公司 | Method for determining detection signal source sequence |
| CN102394052A (en) * | 2011-11-18 | 2012-03-28 | 福建捷联电子有限公司 | Method for rapid detection of port signal when starting up of display device |
| CN106254926A (en) * | 2016-08-10 | 2016-12-21 | 青岛海信电器股份有限公司 | The display control method of input channel icon and television terminal |
| CN109710200A (en) * | 2017-10-25 | 2019-05-03 | 夏普株式会社 | Display device, recording medium and control method |
| CN114125326A (en) * | 2020-08-26 | 2022-03-01 | 龙星显示科技股份有限公司 | Image switching control method and image processing device |
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| US5990982A (en) * | 1995-12-21 | 1999-11-23 | Texas Instruments Incorporated | DMD-based projector for institutional use |
| CN2464029Y (en) * | 2000-12-18 | 2001-12-05 | 谢敬 | LCD video image projector |
| CN2645140Y (en) * | 2003-08-28 | 2004-09-29 | 虹光精密工业（苏州）有限公司 | Scanning projector equipment for multiple frame image repeated playback |
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| CN101241038B (en) * | 2007-02-05 | 2011-05-18 | 佳世达科技股份有限公司 | Method for determining detection signal source sequence |
| CN102394052A (en) * | 2011-11-18 | 2012-03-28 | 福建捷联电子有限公司 | Method for rapid detection of port signal when starting up of display device |
| CN106254926A (en) * | 2016-08-10 | 2016-12-21 | 青岛海信电器股份有限公司 | The display control method of input channel icon and television terminal |
| CN109710200A (en) * | 2017-10-25 | 2019-05-03 | 夏普株式会社 | Display device, recording medium and control method |
| CN114125326A (en) * | 2020-08-26 | 2022-03-01 | 龙星显示科技股份有限公司 | Image switching control method and image processing device |
| CN114125326B (en) * | 2020-08-26 | 2024-02-27 | 龙星显示科技股份有限公司 | Image switching control method and image processing device |
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| CN100399796C (en) | 2008-07-02 |
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