CN101498752B - Display equipment and test method for the same - Google Patents
Display equipment and test method for the same Download PDFInfo
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- CN101498752B CN101498752B CN2008100042954A CN200810004295A CN101498752B CN 101498752 B CN101498752 B CN 101498752B CN 2008100042954 A CN2008100042954 A CN 2008100042954A CN 200810004295 A CN200810004295 A CN 200810004295A CN 101498752 B CN101498752 B CN 101498752B
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Abstract
The invention provides a display device and a testing method used for the same. The display device is connected to a signal source and can be operated under a normal display mode and an input signal testing mode. The display device comprises a display module and a testing module, wherein the display module can receive a plurality of input signals from the signal source and display the input signals; the testing module can receive a target signal in the input signals from the signal source; and the testing module can comprise a memory which is used for prestoring a standard signal parameter table which corresponds to a tested sample. When the signal source is operated to input the tested sample, and the display device is operated under the input signal testing mode, the testing module compares target signal parameters and the standard signal parameters and generates a testing result which is displayed by the display module.
Description
Technical field
The present invention relates to a kind of display device (display apparatus) and be used for the method for testing of this display device, and be particularly related to a kind of display device and method of testing of output signal that can testing source (signal source).
Background technology
When being connected in the display device institute images displayed generation problem of signal source, problematic part possibly be a display device, also might be the signal source that display device connects.In general, if want to learn to be that display device or signal source are out of joint, must use special-purpose proving installation, other signal source or the display device of maybe need arranging in pairs or groups come cross-beta, and be very inconvenient as far as the user.For example; Computer equipment in user family; During its display device institute images displayed generation problem,, there are not unnecessary signal source or display device to carry out cross-beta because the user does not have special-purpose proving installation usually yet; So be difficult to judging problematic is display device or signal source, like display card etc.
Therefore, the object of the present invention is to provide a kind of display device and method of testing, to address the above problem.
Summary of the invention
The method of testing that one object of the present invention is that a kind of display device is provided and is used for this display device; It utilizes test module (test module) comparison echo signal and the standard signal parameter corresponding to test sample book (test pattern), and generation and showing test results.Thus, the user only need utilize this display device, and correctly whether the output signal of testing source is normal, and do not need other testing tool, very convenient as far as the user.
A kind of display device of specific embodiment is connected in signal source according to the present invention, and this display device can be operated under normal displaying mode and input signal test pattern.This display device comprises display module (display module) and test module.This display module is used for receiving a plurality of input signals and showing this input signal from this signal source.This test module can receive the echo signal between this input signal from this signal source.This test module can comprise internal memory, and standard signal parameter list corresponding to test sample book is used to prestore.When this signal source is operated exporting this test sample book, and this display device is under the input signal test pattern during by operation, this test module this echo signal parameter of comparison and this standard signal parameter, and produce test result and be shown in this display module.
According to display device of the present invention, wherein this display module comprises on-screen display circuit, and when the user operated this display device under this input signal test pattern, this on-screen display circuit was operated to show this test result.
According to display device of the present invention, further comprise multiplexer, this multiplexer is coupled between this signal source and this test module, and this multiplexer is used for receiving this input signal and this echo signal being sent to this test module from this signal source.
According to display device of the present invention, further be included in the application software that is performed in this signal source, wherein operate this signal source when exporting this test sample book as the user, this application software triggers this display device simultaneously and gets into this input signal test pattern.
According to display device of the present invention; Further comprise the display data channel interface; This display data channel interface is connected between this signal source and this display device, and wherein this application software triggers this display device via this display data channel interface and gets into this input signal test pattern.
According to display device of the present invention; Wherein, This test module further comprises analog-digital converter; This analog-digital converter is used to judge that this echo signal is simulating signal or digital signal, and converts this echo signal into corresponding to this standard signal parameter digital signal test value according to this judged result.
According to display device of the present invention; Wherein this test sample book is complete white screen video frame (white screen video frame); Standard signal voltage parameter corresponding to this test sample book is 0.7 volt; And this echo signal be the red, green, blue input signal one of them, when this echo signal voltage parameter of this test module comparison was lower than this standard signal voltage parameter, this test result was represented the input signal mistake.
According to display device of the present invention; Wherein this test sample book is a digital signal; 1 voltage parameter corresponding to the standard signal voltage parameter of this test sample book for the logic potential value; When this this echo signal voltage parameter of test module comparison was lower than this standard signal voltage parameter, this test result was represented the input signal mistake.
According to display device of the present invention, wherein this digital signal is to be selected from a kind of in the group of being made up of Hsync signal, Vsync signal, SCL signal, SDA signal and Hot_PLUG signal.
The method of testing of another kind of specific embodiment is used for display device according to the present invention.This display device is connected in signal source, and is pre-stored in this display device corresponding to the standard signal parameter list of test sample book.When this signal source is operated exporting this test sample book, and this display device is under the input signal test pattern during by operation, and this method of testing comprises the following steps: at first, receives the echo signal corresponding to this test sample book; Then, compare this echo signal parameter and this standard signal parameter to produce test result; At last, show this test result.
According to method of testing of the present invention, wherein this display device comprises on-screen display circuit, is used to show this input signal test pattern and this test result.
According to method of testing of the present invention, wherein this display device comprises the display data channel interface, is connected between this display device and this signal source, and this input signal test pattern can be triggered through this display data channel interface and start.
According to method of testing of the present invention; Wherein compare this echo signal parameter and this standard signal parameter to produce the step of test result; Be to judge that earlier this echo signal is simulating signal or digital signal, and according to this judged result this echo signal parameter of comparison and this standard signal parameter to produce this test result.
According to method of testing of the present invention; Wherein this test sample book is the simulating signal corresponding to complete white screen video frame; Standard signal voltage parameter corresponding to this test sample book is 0.7 volt; And this echo signal be the red, green, blue input signal one of them, when this echo signal voltage parameter was lower than this standard signal voltage parameter, this test result was represented the input signal mistake.
According to method of testing of the present invention; Wherein this test sample book is a digital signal; Is 1 voltage parameter corresponding to the standard signal voltage parameter of this test sample book for the logic potential value, and when this echo signal voltage parameter was lower than this standard signal voltage parameter, this test result was represented the input signal mistake.
According to method of testing of the present invention, wherein this digital signal is to be selected from a kind of in the group of being made up of Hsync signal, Vsync signal, SCL signal, SDA signal and Hot_PLUG signal.
Therefore, according to display device of the present invention and method of testing, it utilizes test module comparison echo signal and the standard signal parameter corresponding to test sample book, and generation and showing test results.Thus, the user only need utilize this display device, and correctly whether the output signal of testing source is normal, and do not need other testing tool, very convenient as far as the user.
Can further be understood through following detailed Description Of The Invention and appended accompanying drawing about advantage of the present invention and spirit.
Description of drawings
Figure 1A shows the functional block diagram of a kind of display device of specific embodiment according to the present invention.
Figure 1B shows the synoptic diagram that display device among Figure 1A further comprises application software and display data channel interface.
Fig. 2 shows the process flow diagram of the method for testing of another kind of specific embodiment according to the present invention.
Embodiment
The invention provides a kind of display device and be used for the method for testing of this display device, it utilizes echo signal and the standard signal parameter of test module comparison corresponding to test sample book, and generation and showing test results.Thus, the user only need utilize this display device, and correctly whether the output signal of testing source is normal, and do not need other testing tool, very convenient as far as the user.Below specific embodiment of the present invention will be detailed, the simplicity of using abundant explanation characteristic of the present invention, spirit, advantage and implementing.
Please with reference to Figure 1A, Figure 1A shows the functional block diagram of the display device 1 of a kind of specific embodiment according to the present invention.In this specific embodiment, display device 1 is connected in signal source 3, and display device 1 can be operated under normal displaying mode and input signal test pattern.In practical application, signal source 3 can be the display card of personal computer, but not as limit.Shown in Figure 1A, display device 1 comprises display module 10 and test module 12.When display device 1 when this normal displaying mode is operated, display module 10 can be used for receiving a plurality of input signals and showing this input signal from signal source 3.This functional equivalent is in the Presentation Function of general display device.
In this specific embodiment, test module 12 can comprise internal memory 120, the standard signal parameter list of being used to prestore corresponding to test sample book, and wherein this standard signal parameter list comprises the standard signal parameter.When signal source 3 by operation exporting this test sample book, and display device 1 is under this input signal test pattern during by operation, test module 12 can be compared this echo signal parameter and this standard signal parameters, and produces test result and be shown in display module 10.In fact, test module 12 can comprise CPU (Central ProcessingUnit, CPU) 122, and test module 12 utilizes this CPU 122 comparison this echo signal parameter and this standard signal parameters and produces this test result.In practical application, display module 10 can comprise screen display (On screen display, OSD) circuit 100, and when the user under this input signal test pattern during operation display device 1, on-screen display circuit 100 can be by operation to show this test result.In other words, this test result can be shown on the display module 10 through on-screen display circuit 100.Thus, the user can learn easily whether the echo signal that signal source 3 sent is normal.
In practical application, this test module 12 can further comprise analog-digital converter (Analog-to-Digital Converter, ADC) 124, shown in Figure 1A.This analog-digital converter 124 can be used for judging that this echo signal is simulating signal or digital signal; And convert this echo signal into digital signal test value corresponding to the standard signal parameter according to this judged result, so that in CPU 122 this echo signal parameter of comparison and this standard signal parameters of follow-up test module 12.
In practical application, this test sample book can be complete white screen video frame, is 0.7 volt corresponding to the standard signal voltage parameter of this test sample book, and this echo signal be the red, green, blue input signal one of them.In other words, this echo signal can be a red, green, blue simulating signal wherein, and is 0.7 volt corresponding to normal voltage parameter of the echo signal of this complete white screen video frame.If this echo signal voltage is lower than 0.7 volt, then be regarded as undesired or wrong input signal.So when test module 12 these echo signal voltage parameters of comparison were lower than this standard signal voltage parameter (0.7 volt), this test result was represented the input signal mistake.
In practical application; This test sample book also can be digital signal; 1 voltage parameter corresponding to the standard signal voltage parameter of this test sample book for the logic potential value; Wherein this digital signal can be Hsync signal, Vsync signal, SCL signal, SDA signal or Hot_PLUG signal, but not as limit.The pairing logic potential value of different digital signals is that 1 voltage parameter is not quite similar; Like the pairing logic potential value of Hsync signal is that 1 voltage parameter possibly be 3.3 volts; The pairing logic potential value of Vsync signal is that 1 voltage parameter possibly be 4 volts, possibly be 5 volts and the pairing logic potential value of Hot_PLUG signal is 1 voltage parameter.If it is 1 voltage parameter that this echo signal voltage is lower than pairing logic potential value, then be regarded as undesired or wrong input signal.So when test module 12 these echo signal voltage parameters of comparison were lower than this standard signal voltage parameter, this test result was represented the input signal mistake.
Please with reference to Figure 1B, Figure 1B shows the synoptic diagram that display device 1 among Figure 1A further comprises application software 16 and display data channel interface 18.In practical application, display device 1 can further be included in the application software 16 that is performed in the signal source 3, shown in Figure 1B.When user's operation signal source 3 when exporting this test sample book, application software 16 can trigger display device 1 simultaneously and get into this input signal test pattern.In fact, the user also can like this complete white screen video frame or this digital signal, and trigger display device 1 this input signal test pattern of entering to carry out test procedure through application software 16 operation signal sources 3 these test sample books of output simultaneously.Shown in Figure 1B; In practical application; Display device 1 can further comprise display data channel interface (Display Data ChannelCommand Interface; DDCCI) 18, be connected between the test module 12 of signal source 3 and display device 1, and application software 16 can trigger display device 1 this input signal test pattern of entering via display data channel interface 18.Thus, the user only needs operation and application software 16 just can carry out whole test procedure, and is quite convenient as far as the user.
Thus, the user only need utilize display device 1, and correctly whether the output signal of testing source 3 is normal, and do not need other testing tool.
Please with reference to Fig. 2, and in the lump with reference to Figure 1A and Figure 1B, Fig. 2 shows the process flow diagram of the method for testing (test method) of another kind of specific embodiment according to the present invention.In this specific embodiment, this method of testing is used for display device 1, and display device 1 is connected in signal source 3.In practical application, signal source 3 can be the display card of personal computer, but not as limit.Standard signal parameter list corresponding to test sample book is pre-stored in the display device 1, and wherein this standard signal parameter list comprises the standard signal parameter.
In practical application, display device 1 can be operated under normal displaying mode and input signal test pattern.When display device 1 when this normal displaying mode is operated, display module 10 can be used for receiving a plurality of input signals and showing this input signal from signal source 3.This functional equivalent is in the Presentation Function of general display device.In fact, display device 1 can further comprise display data channel interface 18, be connected between the test module 12 and signal source 3 of this display device 1, and this input signal test pattern can be triggered through display data channel interface 18 and starts.
As shown in Figure 2, when signal source 3 by operation exporting this test sample book, and display device 1 is under the input signal test pattern during by operation, this method of testing comprises the following steps: at first, execution in step S10, reception is corresponding to the echo signal of this test sample book; Then, execution in step S12 compares this echo signal parameter and this standard signal parameter to produce test result; At last, execution in step S14 shows this test result.In practical application, display device 1 can comprise on-screen display circuit 100, is used to show this input signal test pattern and this test result.Thus, the user can learn easily whether the echo signal that signal source 3 sent is normal.
In practical application, this test sample book can be complete white screen video frame, is 0.7 volt corresponding to the standard signal voltage parameter of this test sample book, and this echo signal be the red, green, blue input signal one of them.In other words, this echo signal can be a red, green, blue simulating signal wherein, and is 0.7 volt corresponding to normal voltage parameter of the echo signal of this complete white screen video frame.If this echo signal voltage is lower than 0.7 volt, then be regarded as undesired or wrong input signal.So when aforesaid this echo signal voltage parameter of step S12 comparison was lower than this standard signal voltage parameter (0.7 volt), this test result was represented the input signal mistake.
In practical application; This test sample book also can be digital signal; 1 voltage parameter corresponding to the standard signal voltage parameter of this test sample book for the logic potential value; Wherein this digital signal can be Hsync signal, Vsync signal, SCL signal, SDA signal or Hot_PLUG signal, but not as limit.The pairing logic potential value of different digital signals is that 1 voltage parameter is not quite similar; Like the pairing logic potential value of Hsync signal is that 1 voltage parameter possibly be 3.3 volts; The pairing logic potential value of Vsync signal is that 1 voltage parameter possibly be 4 volts, possibly be 5 volts and the pairing logic potential value of Hot_PLUG signal is 1 voltage parameter.If it is 1 voltage parameter that this echo signal voltage is lower than pairing logic potential value, then be regarded as undesired or wrong input signal.So when aforesaid this echo signal voltage parameter of step S12 comparison was lower than this standard signal voltage parameter, this test result was represented the input signal mistake.
As previously mentioned, this test sample book can be simulating signal or digital signal, and the comparison method among the step S12 is understood because of the difference of signal kinds difference to some extent.So in practical application, step S12 can further comprise and judge that this echo signal is the step of simulating signal or digital signal, and according to this judged result this echo signal parameter of comparison and this standard signal parameter to produce this test result.
Than prior art, according to display device of the present invention and be used for the method for testing of this display device, it utilizes echo signal and the standard signal parameter of test module comparison corresponding to test sample book, and generation and showing test results.Thus, the user only need utilize this display device, and correctly whether the output signal of testing source is normal, and do not need other testing tool, very convenient as far as the user.
Through the detailed description of above preferred specific embodiment, hope can be known description characteristic of the present invention and spirit more, and is not to limit scope of the present invention with the above-mentioned preferred specific embodiment that is disclosed.On the contrary, its objective is that hope can contain various changes and be equal to alternative in the claim scope of requirement of the present invention protection.
The primary clustering symbol description
1: display device 3: signal source
10: display module 12: test module
14: multiplexer 16: application software
18: display data channel interface 100: on-screen display circuit
120: internal memory 122: CPU
124: analog-digital converter S10-S14: steps flow chart
Claims (16)
1. display device, said display device is connected in signal source, and said display device can be operated under normal displaying mode and input signal test pattern, and said display device comprises:
Display module, said display module are used for receiving a plurality of input signals and showing said input signal from said signal source; And
Test module is used for receiving the echo signal between said input signal from said signal source, and said test module comprises internal memory, and standard signal parameter list corresponding to test sample book is used to prestore;
Wherein, When said signal source is operated to export said test sample book; And when said display device is operated under said input signal test pattern; Said test module is compared said echo signal parameter and said standard signal parameter, and produces test result and be shown in said display module.
2. display device according to claim 1; Wherein, Said display module comprises on-screen display circuit, and when the user operated said display device under said input signal test pattern, said on-screen display circuit was operated to show said test result.
3. display device according to claim 1; Further comprise multiplexer; Said multiplexer is coupled between said signal source and the said test module, and said multiplexer is used for receiving said input signal and said echo signal being sent to said test module from said signal source.
4. display device according to claim 1; Further be included in the application software that is performed in the said signal source; Wherein, when the user operates said signal source when exporting said test sample book, said application software triggers said display device simultaneously and gets into said input signal test pattern.
5. display device according to claim 4; Further comprise the display data channel interface; Said display data channel interface is connected between said signal source and the said display device; Wherein, said application software triggers said display device via said display data channel interface and gets into said input signal test pattern.
6. display device according to claim 1; Wherein, Said test module further comprises analog-digital converter; Said analog-digital converter is used to judge that said echo signal is simulating signal or digital signal, and converts said echo signal into corresponding to said standard signal parameter digital signal test value according to said judged result.
7. display device according to claim 6; Wherein, Said test sample book is complete white screen video frame, is that voltage is 0.7 volt voltage parameter corresponding to the standard signal parameter of said test sample book, and said echo signal be the red, green, blue input signal one of them; When said test module was compared said echo signal parameter and is lower than said standard signal parameter, said test result was represented the input signal mistake.
8. display device according to claim 6; Wherein, Said test sample book is a digital signal; Is 1 voltage parameter corresponding to the standard signal parameter of said test sample book for the logic potential value, and when said test module was compared said echo signal parameter and is lower than said standard signal parameter, said test result was represented the input signal mistake.
9. display device according to claim 8, wherein, said digital signal is a kind of in Hsync signal, Vsync signal, SCL signal, SDA signal and the Hot_PLUG signal.
10. method of testing that is used for display device; Said display device is connected in signal source; Standard signal parameter list corresponding to test sample book is pre-stored in the said display device; When said signal source is operated exporting said test sample book, and said display device is under the input signal test pattern during by operation, and said method of testing comprises the following steps:
Reception is corresponding to the echo signal of said test sample book;
Comparison echo signal parameter and said standard signal parameter are to produce test result; And
Show said test result.
11. method of testing according to claim 10, wherein, said display device comprises on-screen display circuit, is used to show said input signal test pattern and said test result.
12. method of testing according to claim 10; Wherein, Said display device comprises the display data channel interface, is connected between said display device and the said signal source, and said input signal test pattern is triggered through said display data channel interface and starts.
13. method of testing according to claim 10; Wherein, Compare said echo signal parameter and said standard signal parameter to produce the step of test result; Be to judge that earlier said echo signal is simulating signal or digital signal, and compare said echo signal parameter and said standard signal parameter to produce said test result according to said judged result.
14. method of testing according to claim 13; Wherein, Said test sample book is the simulating signal corresponding to complete white screen video frame, is that voltage is 0.7 volt voltage parameter corresponding to the standard signal parameter of said test sample book, and said echo signal be the red, green, blue input signal one of them; When said echo signal parameter was lower than said standard signal parameter, said test result was represented the input signal mistake.
15. method of testing according to claim 13; Wherein, Said test sample book is a digital signal; Is 1 voltage parameter corresponding to the standard signal parameter of said test sample book for the logic potential value, and when said echo signal parameter was lower than said standard signal parameter, said test result was represented the input signal mistake.
16. method of testing according to claim 15, wherein, said digital signal is a kind of in Hsync signal, Vsync signal, SCL signal, SDA signal and the Hot_PLUG signal.
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| CN102685543B (en) * | 2011-03-09 | 2016-01-20 | 神讯电脑(昆山)有限公司 | Video signal test system and method |
| CN104730301B (en) | 2015-04-07 | 2017-12-08 | 京东方科技集团股份有限公司 | A kind of signal source |
| CN105223502A (en) * | 2015-09-24 | 2016-01-06 | 杭州威衡科技有限公司 | A kind of method of testing of hall electric machine and proving installation |
| CN105551412B (en) * | 2016-02-24 | 2018-03-30 | 京东方科技集团股份有限公司 | The detection means and method of a kind of brightness |
| CN108243334B (en) * | 2016-12-26 | 2020-04-28 | 研祥智能科技股份有限公司 | Signal source output control method and device |
| CN111385568A (en) * | 2018-12-29 | 2020-07-07 | 青岛海尔多媒体有限公司 | Automatic detection method and device for electronic equipment, electronic equipment and storage medium |
| CN109887449B (en) * | 2019-02-20 | 2022-06-21 | 合肥惠科金扬科技有限公司 | Display and energy efficiency testing method and system thereof |
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| CN1866039A (en) * | 2005-05-19 | 2006-11-22 | 台朔光电股份有限公司 | Apparatus and method for testing drive integrated circuit of display panel |
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| CN1866039A (en) * | 2005-05-19 | 2006-11-22 | 台朔光电股份有限公司 | Apparatus and method for testing drive integrated circuit of display panel |
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