CN103245864A - Touch screen testing system and method - Google Patents
Touch screen testing system and method Download PDFInfo
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- CN103245864A CN103245864A CN2013101735015A CN201310173501A CN103245864A CN 103245864 A CN103245864 A CN 103245864A CN 2013101735015 A CN2013101735015 A CN 2013101735015A CN 201310173501 A CN201310173501 A CN 201310173501A CN 103245864 A CN103245864 A CN 103245864A
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Abstract
The invention discloses a touch screen testing system. A touch control chip arranged on a test plate and corresponding to a touch screen receives testing touch information of the touch screen and sends corresponding testing pulse signals to a signal processing module, the signal processing module is used for processing the testing pulse signals so as to obtain test signals capable of being recognized by an upper computer and send the test signals to the upper computer, the upper computer judges whether the test signals are in consistent with pre-arranged judgment signals or not, and if the test signals are in consistent with the judgment signals, the corresponding touch screen is acceptable. Since the test plate playing a bridging role is added, when the control chip of the touch screen is positioned on the main board of an electronic product such as a mobile phone and a PC, testing can be performed on the touch screen. In addition, the invention further provides a touch screen testing method.
Description
Technical field
The present invention relates to the touch screen technology field, particularly relate to a kind of testing touch screen system and method.
Background technology
Touch-screen is a kind of induction type liquid crystal indicator that receives input signals such as contact, touch-screen can be mobile phone, PC(personal computer, personal computer) touch-screen on is simple, convenient, the most natural present a kind of man-machine interaction mode.It has given multimedia with brand-new looks, is extremely attractive brand-new multimedia interactive equipment.Be mainly used in inquiry, leader's office, Industry Control, military commanding, electronic game, choosing song or selecting dish, multimedia teaching, real estate presell of public information etc.For guaranteeing that touch screen function is good, must carry out functional test to touch-screen.
Traditional testing touch screen method is to being positioned at touch-screen FPC(Flexible Printed Circuit, flexible print circuit) signal of the control chip of plate output handles, and judges according to the signal after handling whether touch-screen is qualified.When being positioned at the mainboard of electronic products such as mobile phone, PC when control chip, the FPC plate of touch-screen is just drawn the signalling channel of touch-screen, and traditional method of testing can't be tested.
Summary of the invention
Based on this, when being necessary to provide a kind of mainboard that is positioned at electronic products such as mobile phone, PC when control chip, the testing touch screen system and method that can test touch-screen.
A kind of testing touch screen system, comprise test board, signal processing module and host computer, described test board connects the signalling channel interface of touch-screen, described host computer is connected with described test board by described signal processing module, described test board comprises the touch-control chip corresponding with described touch-screen, described touch-control chip is provided with signaling interface and communication interface, the signaling interface of described touch-control chip connects the signalling channel interface of described touch-screen, and the communication interface of described touch-control chip connects described signal processing module; Described touch-control chip is used for receiving the test touching information of described touch-screen, and sends corresponding test pulse signal to described signal processing module; Described signal processing module is used for described test pulse signal is handled, and obtains the test signal of described upper function identification, and described test signal is sent to described host computer; Described host computer is used for judging described test signal judges with default whether signal is consistent, if described test signal is consistent with described judgement signal, then corresponding touch-screen is non-defective unit.
Among embodiment, described test board comprises connector and breakout box therein, and the signaling interface of described touch-control chip is connected with the signalling channel interface of described touch-screen by described connector; The communication interface of described touch-control chip connects described signal processing module by described breakout box.
Therein among embodiment, the signalling channel interface of described touch-screen comprises driving channel interface and induction channels interface, described connector is connected with the signaling interface of induction channels circuit with described touch-control chip by driving port line, and described driving port line and induction channels circuit are not parallel to each other.
Among embodiment, the communication interface of described touch-control chip is connected with described breakout box by communication line therein, and described communication line and described driving port line and induction channels circuit are all not parallel, and all do not intersect.
Therein among embodiment, described host computer comprises receiving element and comparing unit, described receiving element is used for the acceptance test instruction, described host computer is controlled described comparing unit and is judged that described test signal judges with default whether signal is consistent after described receiving element receives described test instruction.
Among embodiment, described host computer comprises alarm unit therein, and described alarm unit is used for judging that at described host computer described test signal gives the alarm when inconsistent with judging signal.
A kind of testing touch screen method may further comprise the steps:
Receive the test touching information of touch-screen, and send corresponding test pulse signal to signal processing module;
Described test pulse signal is handled, obtained the test signal of upper function identification, and described test signal is sent to described host computer;
Judge described test signal judges with default whether signal is consistent, if described test signal is consistent with described judgement signal, then corresponding touch-screen is non-defective unit.
Therein among embodiment, described described test pulse signal is handled, obtain the test signal of upper function identification, and described test signal is sent to after the step of described host computer, describedly judge that described test signal judges that with default signal whether before the consistent step, comprises the step that acceptance test is instructed.
Therein among embodiment, describedly judge that described test signal judges that with default signal whether after the consistent step, if described test signal is inconsistent with the judgement signal, also comprises the step that gives the alarm.
Among embodiment, after the described step that gives the alarm, also comprise the step of corresponding touch-screen being carried out change in design therein.
Above-mentioned testing touch screen system, by being arranged at test board, and the touch-control chip corresponding with touch-screen receives the test touching information of touch-screen, and send corresponding test pulse signal to signal processing module, signal processing module is handled the test pulse signal, obtain the test signal of upper function identification and be sent to host computer, host computer judge test signal with preset judge whether signal consistent, if test signal is consistent with the judgement signal, then corresponding touch-screen is non-defective unit.Owing to increased the test board that plays the bridge joint effect, when the control chip of touch-screen is positioned on the mainboard of electronic products such as mobile phone, PC, also can test touch-screen.
Description of drawings
Fig. 1 is the structural drawing of testing touch screen system among the embodiment;
Fig. 2 is the structural drawing of testing touch screen system among another embodiment;
Fig. 3 is the process flow diagram of testing touch screen method among the embodiment;
Fig. 4 is the process flow diagram of testing touch screen method among another embodiment.
Embodiment
Touch-screen is a kind of induction type liquid crystal indicator that receives input signal such as contact, is simple, convenient, the most natural a kind of man-machine interaction mode at present.It has given multimedia with brand-new looks, is extremely attractive brand-new multimedia interactive equipment.For guaranteeing that touch screen function is good, must carry out functional test to touch-screen.Testing touch screen system and method provided by the invention, by being arranged at test board, and the touch-control chip corresponding with touch-screen receives the test touching information of touch-screen, and send corresponding test pulse signal to signal processing module, signal processing module is handled the test pulse signal, obtain the test signal of upper function identification and be sent to host computer, host computer judges that test signal judges with default whether signal is consistent, if test signal is consistent with the judgement signal, then corresponding touch-screen is non-defective unit.Owing to increased the test board that plays the bridge joint effect, when the control chip of touch-screen is positioned on the mainboard of electronic products such as mobile phone, PC, also can test touch-screen.
Be elaborated below in conjunction with the embodiment of accompanying drawing to the testing touch screen system and method.
A kind of testing touch screen system, touch-screen can be resistive touch screen, capacitive touch screen etc.As shown in Figure 1, the testing touch screen system comprises test board 110, signal processing module 120 and host computer 130, and host computer 130 can be PC(personal compute, PC) or notebook etc.Test board 110 connects the signalling channel interface of touch-screen 200, and host computer 130 connects 110 by signal processing module 120 and test board and connects.
Touch-control chip 112 is used for receiving the test touching information of touch-screen 200, and sends corresponding test pulse signal to signal processing module 120.Test touching information can comprise touch position, touching area and touching duration etc., and touch-control chip 112 is corresponding with touch-screen 200, can select corresponding touch-control chip according to the model of touch-screen, and a kind of touch-control chip is applicable to the touch-screen of multiple model.
In the present embodiment, when touch-screen 200 is tested, touch-control chip 112 each test touching information that receive are all identical, and the default judgement signal of 130 need of host computer just can be judged a plurality of touch-screens continuously, can test touch-screen 200 easily and fast.In other embodiments, but the test of each test touching information part is identical, also can be all inequality, but need host computer 130 to preset the judgement signal of a plurality of correspondences.
Shown in 2, test board 110 can comprise connector 114 and breakout box 116, and the signaling interface of touch-control chip 112 is connected with the signalling channel interface of touch-screen 200 by connector 114; The communication interface of touch-control chip 112 connects signal processing module 120 by breakout box 116.
Particularly, the signalling channel interface of touch-screen 200 can comprise driving channel interface and induction channels.Connector 114 is connected with the signaling interface of induction channels circuit with touch-control chip 112 by driving port line, driving port line and induction channels circuit can intersect and also can not intersect, be not parallel to each other as long as satisfy, to avoid driving the signal mutual interference of transmitting in port line and the induction channels circuit mutually, and reduce the accuracy of testing, thereby realize touch-screen 200 is carried out the test of high accuracy.Intersect if drive port line and induction channels circuit, then can be set to square crossing, can further avoid the signal phase mutual interference of transmitting.
The communication interface of touch-control chip 112 is connected with breakout box 116 by communication line, and touch-control chip 112 sends the test pulse signal to breakout box 116, is sent to signal processing module 120 by breakout box 116 then.Communication line can be designed to and drives port line and the induction channels circuit is all not parallel in the present embodiment, and does not all intersect.Design can be avoided driving the signal that transmits in port line and the induction channels circuit and disturbed by the test pulse signal in the communication line like this, when touch-screen 200 is tested, can further improve test accuracy.
Above-mentioned testing touch screen system, by being arranged at test board 110, and the touch-control chip 112 corresponding with touch-screen 200, receive the test touching information of touch-screen 200, and send corresponding test pulse signal to signal processing module 120,120 pairs of test pulse signals of signal processing module are handled, and obtain the test signal that host computer 130 can identify and are sent to host computer 130, and host computer 130 judges that test signal judges with default whether signal is consistent.If test signal is consistent with the judgement signal, then corresponding touch-screen 200 is non-defective unit.Owing to increased the test board 110 that plays the bridge joint effect, when the control chip of touch-screen 200 is positioned on the mainboard of electronic products such as mobile phone, PC, also can test touch-screen 200.
Among embodiment, host computer 130 can comprise initialization unit therein, and described initialization unit is used for signal processing module 120 is carried out hardware initialization, causes to avoid occurring the program sideslip in the test process crashing, and can't measure touch-screen 200.Touch-control chip 112 is accepted the test touching information of touch-screen 200 after initialization unit is carried out hardware initialization to signal processing module 120, and sends corresponding test pulse signal to signal processing module 120.
Continuation is with reference to Fig. 2, host computer also can comprise receiving element 132 and comparing unit, receiving element 132 is used for the acceptance test instruction, host computer 130 is after receiving element 132 receives test instruction, control ratio judges with default whether signal is consistent than the unit judges test signal, test instruction can send by various ways, as send or click by mouse test icon of host computer 130 display interfaces etc. by pushbutton switch.When the touch-screen 200 that will need to test with after test board 110 is connected, touch-control chip 112 real-time acceptance test touching information, and send corresponding test pulse signal to signal processing module 120, signal processing module 120 is handled the test pulse signal and is obtained test signal and be sent to host computer 130, host computer 130 is after receiving element 132 receives test instruction, just can control comparing unit judges test signal, can avoid maloperation, improve stability and the security of testing touch screen system, host computer 130 need not be judged the test signal that receives in real time simultaneously, reduced the working load of host computer 130, can avoid host computer 130 because of the overload paralysis, and can't test touch-screen 200.
The present invention also provides a kind of testing touch screen method, as shown in Figure 3, may further comprise the steps:
Step S110: receive the test touching information of touch-screen, and send corresponding test pulse signal to signal processing module.
Can receive the test touching information of touch-screen by the touch-control chip, and send corresponding test pulse signal to signal processing module, the touch-control chip is arranged on the web joint, and can be according to touch-control chip pin definition design touch-control chip periphery circuit, to meet the designing requirement of touch-control chip application.The touch-control chip is provided with signaling interface and communication interface, and the signaling interface of touch-control chip connects the signalling channel interface of touch-screen, and the communication interface of touch-control chip connects signal processing module.Test touching information can comprise touch position, touching area and touching duration etc., and the touch-control chip is corresponding with touch-screen, can select corresponding touch-control chip according to the model of touch-screen, and a kind of touch-control chip is applicable to the touch-screen of multiple model.
Step S120: the test pulse signal is handled, obtained the test signal of upper function identification, and test signal is sent to host computer.
By signal processing module the test pulse signal is handled in the present embodiment, obtained test signal and be sent to host computer.Signal processing module can pass through USB(Universal Serial BUS, USB (universal serial bus)) interface is connected with host computer.
Step S140: judge that test signal judges with default whether signal is consistent.
Can judge test signal judges with default whether signal is consistent, if test signal is consistent with the judgement signal, then corresponding touch-screen is non-defective unit, and test stops, and tests again behind the replacing touch-screen by host computer in the present embodiment.If test signal is inconsistent with the judgement signal, then corresponding touch-screen is defective products.Test signal and judgement signal are direct current signal in the present embodiment.Be appreciated that in other embodiments test signal and judge that signal also can be other signals, only need satisfy host computer and can identify and get final product.
In the present embodiment, when touch-screen was tested, the each test touching information that receives of touch-control chip was all identical, and host computer only need be preset one and judge that signal just can judge a plurality of touch-screens continuously, can test touch-screen easily and fast.In other embodiments, but the test of each test touching information part is identical, also can be all inequality, but need host computer to preset the judgement signal of a plurality of correspondences.
Test board can comprise connector and breakout box, and the signaling interface of touch-control chip is connected with the signalling channel interface of touch-screen by connector; The communication interface of touch-control chip connects signal processing module by breakout box.
Connector is provided with the signalling channel corresponding with the signalling channel interface of touch-screen and the transmission channel corresponding with the signaling interface of touch-control chip, the signaling interface of touch-control chip is connected with the signalling channel interface of touch-screen by connector, is connected with the signalling channel interface of touch-screen with the signaling interface of realizing the touch-control chip.Breakout box be provided with the input channel corresponding with the communication interface of touch-control chip and with the input interface corresponding output channel of signal processing module, be connected with signal processing module with the communication interface that realizes the touch-control chip.In other embodiments, test board also can not comprise connector and breakout box, but at test board outer setting interface conversion circuit, realizes the interface conversion between touch-screen, touch-control chip and the signal processing module.
Particularly, the signalling channel interface of touch-screen can comprise driving channel interface and induction channels interface, connector is connected with the signaling interface of induction channels circuit with the touch-control chip by driving port line, driving port line and induction channels circuit can intersect and also can not intersect, be not parallel to each other as long as satisfy, avoiding driving the signal mutual interference of transmitting in port line and the induction channels circuit mutually, and reduce the accuracy of test, thereby realize touch-screen is carried out the test of high accuracy.Intersect if drive port line and induction channels circuit, then can be set to square crossing, can further avoid the signal phase mutual interference of transmitting.
The communication interface of touch-control chip is connected with breakout box by communication line, and the touch-control chip sends the test pulse signal to breakout box, is sent to signal processing module by breakout box then.Communication line can be designed to and drives port line and the induction channels circuit is all not parallel in the present embodiment, and does not all intersect.Design can be avoided driving the signal that transmits in port line and the induction channels circuit and disturbed by the test pulse signal in the communication line like this, when touch-screen is tested, can further improve test accuracy.
Above-mentioned testing touch screen method is touched information by the test that receives touch-screen, and sends corresponding test pulse signal to signal processing module; The test pulse signal is handled, obtained the test signal of upper function identification and be sent to host computer; Judge that test signal judges with default whether signal is consistent.If test signal is consistent with the judgement signal, then corresponding touch-screen is non-defective unit.When the control chip of touch-screen is positioned on the mainboard of electronic products such as mobile phone, PC, also can test touch-screen.
Among embodiment, before the step S110, can comprise the step of signal processing module being carried out hardware initialization therein, cause to avoid occurring the program sideslip in the test process crashing, can't measure touch-screen.
As shown in Figure 4, after the step S120, before the step S140, also can may further comprise the steps:
Step S130: acceptance test instruction.
Can be by the instruction of the receiving element acceptance test in the host computer in the present embodiment, by the comparing unit in the host computer judge test signal with preset judge whether signal consistent.Host computer is after receiving element receives test instruction, control ratio judges with default whether signal is consistent than the unit judges test signal, test instruction can send by various ways, as send or click by mouse test icon of host computer display interface etc. by pushbutton switch.When the touch-screen that will need to test with after test board is connected, the real-time acceptance test touching of touch-control chip information, and send corresponding test pulse signal to signal processing module, signal processing module is handled the test pulse signal and is obtained test signal and be sent to host computer, host computer is after receiving element receives test instruction, just can control comparing unit judges test signal, can avoid maloperation, improve stability and the security of testing touch screen system, host computer need not be judged the test signal that receives in real time simultaneously, reduced the working load of host computer, can avoid host computer to paralyse because of overload, and can't test touch-screen.
Continuation, if test signal is inconsistent with the judgement signal, also can may further comprise the steps after the step S140 with reference to Fig. 4:
Step S150: give the alarm.
Can judge that at host computer test signal gives the alarm when inconsistent with judging signal by the alarm unit of host computer in the present embodiment, make the staff can in time find defective products, guarantee to exist the touch-screen of defective can not come into the market.
In addition, after the step S150, also can may further comprise the steps:
Step S160: corresponding touch-screen is carried out change in design.
After defective products carried out change in design, also can utilize above-mentioned testing touch screen method to test again to the touch-screen after the change in design, defective products is carried out change in design can avoid waste, and effectively reduces production costs.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a testing touch screen system is characterized in that, comprises test board, signal processing module and host computer, and described test board connects the signalling channel interface of touch-screen, and described host computer is connected with described test board by described signal processing module,
Described test board comprises the touch-control chip corresponding with described touch-screen, described touch-control chip is provided with signaling interface and communication interface, the signaling interface of described touch-control chip connects the signalling channel interface of described touch-screen, and the communication interface of described touch-control chip connects described signal processing module; Described touch-control chip is used for receiving the test touching information of described touch-screen, and sends corresponding test pulse signal to described signal processing module;
Described signal processing module is used for described test pulse signal is handled, and obtains the test signal of described upper function identification, and described test signal is sent to described host computer;
Described host computer is used for judging described test signal judges with default whether signal is consistent, if described test signal is consistent with described judgement signal, then corresponding touch-screen is non-defective unit.
2. testing touch screen according to claim 1 system is characterized in that described test board comprises connector and breakout box, and the signaling interface of described touch-control chip is connected with the signalling channel interface of described touch-screen by described connector; The communication interface of described touch-control chip connects described signal processing module by described breakout box.
3. testing touch screen according to claim 2 system, it is characterized in that, the signalling channel interface of described touch-screen comprises driving channel interface and induction channels interface, described connector is connected with the signaling interface of induction channels circuit with described touch-control chip by driving port line, and described driving port line and induction channels circuit are not parallel to each other.
4. testing touch screen according to claim 3 system, it is characterized in that, the communication interface of described touch-control chip is connected with described breakout box by communication line, and described communication line and described driving port line and induction channels circuit are all not parallel, and all do not intersect.
5. testing touch screen according to claim 1 system, it is characterized in that, described host computer comprises receiving element and comparing unit, described receiving element is used for the acceptance test instruction, described host computer is controlled described comparing unit and is judged that described test signal judges with default whether signal is consistent after described receiving element receives described test instruction.
6. according to any described testing touch screen system of claim 1 to 5, it is characterized in that described host computer comprises alarm unit, described alarm unit is used for judging that at described host computer described test signal gives the alarm when inconsistent with judging signal.
7. a testing touch screen method is characterized in that, may further comprise the steps:
Receive the test touching information of touch-screen, and send corresponding test pulse signal to signal processing module;
Described test pulse signal is handled, obtained the test signal of upper function identification, and described test signal is sent to described host computer;
Judge described test signal judges with default whether signal is consistent, if described test signal is consistent with described judgement signal, then corresponding touch-screen is non-defective unit.
8. testing touch screen method according to claim 7, it is characterized in that, described described test pulse signal is handled, obtain the test signal of upper function identification, and described test signal is sent to after the step of described host computer, describedly judge that described test signal judges that with default signal whether before the consistent step, comprises the step that acceptance test is instructed.
9. testing touch screen method according to claim 7 is characterized in that, describedly judges that described test signal judges that with default signal whether after the consistent step, if described test signal is inconsistent with the judgement signal, also comprises the step that gives the alarm.
10. testing touch screen method according to claim 9 is characterized in that, after the described step that gives the alarm, also comprises the step of corresponding touch-screen being carried out change in design.
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Application publication date: 20130814 |