CN206281910U - A kind of touch-screen response time test device and system - Google Patents
A kind of touch-screen response time test device and system Download PDFInfo
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- CN206281910U CN206281910U CN201621242936.6U CN201621242936U CN206281910U CN 206281910 U CN206281910 U CN 206281910U CN 201621242936 U CN201621242936 U CN 201621242936U CN 206281910 U CN206281910 U CN 206281910U
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- touch
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- measured
- conductor
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Abstract
The utility model discloses a kind of touch-screen response time test device and system, and the device includes：Touch conductor, movable supporting plate, switch, first switch pipe, first resistor and oscillograph；Conductor is touched, for contact measured touch-screen, and ground connection is connected with switch by connecting line；Movable supporting plate, is arranged between switch and touch-screen to be measured；Touch-screen to be measured is effectively touched when conductor is touched, movable supporting plate links with touch-screen to be measured so that switch conduction；First resistor one end is grounded, the connection end of probe 2 of another drain electrode and oscillograph for terminating first switch pipe；Chip is touched in the contact of CRO coupling 1；First switch tube grid wiring in succession, first switch pipe source electrode connects power supply.The technical solution of the utility model has built touch-screen response time test device and system by simple test device, and not only simplify test system builds difficulty, reduces cost, and accuracy of detection is higher.
Description
Technical field
The utility model is related to electric and electronic technical field, and in particular to a kind of touch-screen response time test device and be
System.
Background technology
In recent years, continuing to develop with Power Electronic Technique, it is various also more next with touch-screen consumer electronics product
It is more.However, weighing the response time that an important indicator with touch-screen consumer electronics product is exactly the touch-screen.
The response time of the touch-screen refers to effectively to touch capacitive touch screen, and cause that controller identification is touched, and is sent
The time of disconnected response.
At present, the touch-screen that consumer electronics product is used generally uses resistive touch screen or capacitive touch screen；
Wherein, the capacitive touch screen is operated using the electric current sensing of human body.The capacitive touch screen is one piece four
Layer compound glass screen；The inner surface and interlayer of the glass screen respectively scribble one layer of tin-doped indium oxide (IndiumTinOxide, abbreviation
ITO) film, outermost layer is a thin layer silicon soil glassivation, and interlayer ITO coatings draw four as working face on four angles
Electrode, internal layer ITO is screen layer to ensure good working environment.
However, in the response time test process of existing touch-screen, inventor has found to test the electricity in the prior art
Building for the test system of appearance formula touch-screen response time is all complex, relatively costly, and accuracy of detection is not high.
Utility model content
The utility model provides a kind of touch-screen response time test device and system, to solve electricity of the prior art
Building for the test system of appearance formula touch-screen response time is all complex, relatively costly, and accuracy of detection problem not high.
According to one side of the present utility model, there is provided a kind of touch-screen response time test device, the device includes：
Touch conductor, movable supporting plate, switch, first switch pipe, first resistor and oscillograph；
The touch conductor, for contact measured touch-screen, and is connected by connecting line with the switch；
The movable supporting plate, is arranged between the switch and the touch-screen to be measured；When the touch conductor has
Effect touches the touch-screen to be measured, and the movable supporting plate links with the touch-screen to be measured so that the switch conduction；
First resistor one end ground connection, the drain electrode of another termination first switch pipe and the probe 2 of the oscillograph
Connection end；Chip is touched in the contact of the CRO coupling 1；
The first switch tube grid connects the connecting line, and the first switch pipe source electrode connects power supply.
According to other side of the present utility model, there is provided a kind of touch-screen Response Time Test System, the system bag
Include：Touch-screen response time test device, touches chip and master controller；
The touch-screen response time test device is connected with the touch chip；
The touch chip carries out information exchange with the master controller.
The beneficial effects of the utility model are：This touch-screen response time test device of the present utility model and system,
By touching conductor instead of human contact's touch-screen to be measured, and it is connected with the switch by connecting line；When the touch conductor
The touch-screen to be measured is effectively touched, the movable supporting plate is linked with the touch-screen to be measured so that the switch is led
It is logical；The touch conductor ground connection, at the same the grounded-grid conducting of the first switch pipe, now, the leakage of the first switch pipe
Pole sends a high level close to the supply voltage to the oscillograph, and this high level is effective touch signal；
When the switch conduction, the touch conductor ground connection are now formed and effectively touched, the touch chip can be by sensor sensing
And effective touch signal of the touch-screen to be measured is recognized, and according to effective touch signal sends to master controller
Interrupt signal.Time is sent according to effective touch signal generation time and the interrupt signal, touch to be measured had both been can determine that
The response time of screen.
Test system can not only be simplified using technical solutions of the utility model builds difficulty, reduces cost, and inspection
Survey precision higher.
In addition, technical solutions of the utility model are realized sending high level to oscillograph using switching tube, i.e., by switching tube
Effective touch signal is sent to oscillograph, so that it is determined that effective touch signal generation time.Due to the response of switching tube
Speed, error is smaller, so that the touch-screen response time test device, system and method accuracy of detection are higher.
Brief description of the drawings
Fig. 1 is a kind of touch-screen response time test device structural representation of the utility model one embodiment；
Fig. 2 is a kind of structured flowchart of touch-screen Response Time Test System of the utility model one embodiment；
Fig. 3 is a kind of flow chart of touch-screen response time method of testing of the utility model one embodiment；
Fig. 4 is the oscilloprobe 1 of the utility model one embodiment and the oscillogram of probe 2.
Specific embodiment
The capacitance touch screen response time test principle be：When no finger is touched, itself can be formed capacitance touch screen
One parasitic capacitance or coupled capacitor.It is in itself a conductor due to people when finger is touched, the capacitance touch screen can be changed
The distribution of upper parasitic capacitance or coupled capacitor, influences capacitance afterwards.And chip is touched by detecting the change of the capacitance
Identify whether have touch action.However, the response time for testing the capacitance touch screen typically refers to the touch-responsive time
The difference of the cut off of test and the starting point of the touch-responsive time measurement.When testing capacitor touch-screen is responded in the prior art
Between system building it is all complex, it is relatively costly, and accuracy of detection is not high.
Design concept of the present utility model is：For the system building of testing capacitor touch-screen response time in the prior art
All complex, relatively costly, and accuracy of detection problem not high, the utility model employs touch-screen response time test dress
Put and touch the system architecture that chip is engaged, realize the test of touch-screen response time.Wherein, the touch-screen response time
Test device includes：Touch conductor, movable supporting plate, switch, first switch pipe, first resistor and oscillograph；Opened when described
Conducting is closed, the touch conductor ground connection now forms and effectively touches, while the grounded-grid conducting of the first switch pipe, this
When, the drain electrode of the first switch pipe sends a high level close to the supply voltage to the oscillograph, this electricity high
It is effective touch signal to put down；When the switch conduction, the touch conductor ground connection now forms and effectively touches, described to touch
Touching chip by sensor sensing and can recognize effective touch signal of the touch-screen to be measured, and according to effective touch
Signal sends the interrupt signal to master controller；Sent according to effective touch signal generation time and the interrupt signal
Time, determine the response time of touch-screen to be measured.Can not only simplify taking for test system using technical solutions of the utility model
Difficulty is built, cost is reduced, in addition, technical solutions of the utility model are realized sending high level to oscillograph using switching tube, i.e.,
Effective touch signal is sent to by oscillograph by switching tube, so that it is determined that effective touch signal generation time.Due to opening
The response speed for closing pipe is very fast, and error is smaller, so that the touch-screen response time test device, system and method are detected
Precision is higher.
Embodiment one
Fig. 1 is a kind of structural representation of touch-screen response time test device of the utility model one embodiment, ginseng
See Fig. 1, the touch-screen response time test device includes：Touch conductor 11, movable supporting plate 12, switch 13, first switch
Pipe 14, first resistor 15 and oscillograph 16；
The touch conductor, for contact measured touch-screen 18, and is connected by connecting line 17 with the switch；It is described to touch
It can be copper rod or aluminium bar to touch conductor.
The movable supporting plate, is arranged between the switch and the touch-screen to be measured；When the touch conductor has
Effect touches the touch-screen to be measured, and the movable supporting plate links with the touch-screen to be measured so that the switch conduction,
Now the touch conductor is connected by connecting line with the switch, and is grounded, and is formed and effectively touched.
First resistor one end ground connection, the drain electrode of another termination first switch pipe and the probe 2 of the oscillograph
Connection end；Chip is touched in the contact of the CRO coupling 1.
The first switch tube grid connects the connecting line, and the first switch pipe source electrode connects power supply.
It should be noted that the touch-screen to be measured is provided with sensor；The sensor is used for the touch conductor
The effective touch signal for effectively touching the touch-screen to be measured is transferred to the touch chip.
Also, it should be noted that the switch uses touch-switch or mechanical switch；The first switch pipe is metal
Oxide semiconductor field effect (metal-oxide-semiconductor, abbreviation MOS) is managed.
Embodiment two
Fig. 2 is a kind of structural representation of touch-screen Response Time Test System of the utility model one embodiment, ginseng
See Fig. 2, the touch-screen Response Time Test System 20 includes：Touch-screen response time test device 201, touches the He of chip 202
Master controller 203；
The touch-screen response time test device 201 is connected with the touch chip 202；
The touch chip 202 carries out information exchange with the master controller 203.
Wherein, the touch-screen response time test device 201 includes：Conductor is touched, movable supporting plate is switched, the
One switching tube, first resistor and oscillograph；
The touch conductor, for contact measured touch-screen, and is connected by connecting line with the switch；
The movable supporting plate, is arranged between the switch and the touch-screen to be measured；When the touch conductor has
Effect touches the touch-screen to be measured, and the movable supporting plate links with the touch-screen to be measured so that the switch conduction,
Now the touch conductor is connected by connecting line with the switch, and is grounded, and is formed and effectively touched, and at the same time, first opens
The grid for closing pipe is pin 1, receives earth signal so as to turn on, and the drain electrode of the first switch pipe is pin 2 to oscillograph
Probe 2 sends a high level close to supply voltage, and this high level is the starting point of touch-responsive time measurement.Formed
While effectively touch, the touch chip can sense and recognize the change of electric capacity on the capacitive type touch pad, so that upper master
Controller sends interrupt signal, and the time for now sending the interrupt signal is the cut off of touch-responsive time test；It is described
When the difference of the cut off of touch-responsive time test and the starting point of the touch-responsive time measurement, as touch-screen are responded
Between.The interrupt signal is sent to oscillograph by probe 1.The probe 1 of the oscillograph and the waveform of probe 2, such as Fig. 4 institutes
Show.
First resistor one end ground connection, the drain electrode of another termination first switch pipe and the probe 2 of the oscillograph
Connection end；The CRO coupling 1 connects the touch chip；
The first switch tube grid connects the connecting line, and the first switch pipe source electrode connects power supply.
Wherein, the chip 202 that touches is used for by effective touch signal of touch-screen to be measured described in sensor sensing；When
When receiving effective touch signal, interrupt signal is sent to master controller 203.
Based on above example, the finger of people is simulated in technical solutions of the utility model by touching conductor, because people
Itself be conductor, finger is known from experience to form a direct-to-ground capacitance when touching the touch-screen to be measured by people, the touch chip with
The change of electric capacity determines whether there is the particular location for touching and touching, thus copper rod and aluminium bar must be grounded just can be effective
The touch chip that allows recognize touchs, therefore the touch conductor is connected by connecting line with the switch, when described touch is led
Body effectively touches the touch-screen to be measured, and the movable supporting plate links with the touch-screen to be measured so that the switch
Conducting, now the touch conductor is connected by connecting line with the switch, and is grounded, and is formed and effectively touched.
During test, the touch-screen to be measured is positioned in mobilizable supporting plate, and supporting plate can be plastic material, to touching
The influence for touching performance can be ignored, and the supporting plate is movable up and down, and the switch is serially connected in the touch conductor and ground
Between, when without touching, the switch is not turned on, and now the touch conductor is earth-free.When there is touch, the touch conductor
It is grounded by switching.The first switch pipe is used to respond touch effectively, and will touch effective signal transmission to the oscillography
Device, changes as datum；The oscillograph is divided into two-way probe, and probe 1 is used for testing the interruption pin of the touch chip
Change；The probe 2 is used for testing the output level change of first switch pipe.
, using the touch conductor simulation finger movement, the touch conductor is by the branch for technical solutions of the utility model
Fagging and switch gearing are grounded, and are formed and effectively touched, and using carrying out triggering response by the first switch pipe so that oscillography
Effective touch signal is sent to oscillograph by device while the touch conductor occurs effectively to touch by switching tube,
So as to substantially reduce test error, make the response time for measuring that there is the degree of accuracy very high.
Embodiment three
Based on above example, Fig. 3 is a kind of touch-screen response time method of testing of the utility model one embodiment
Flow chart, the touch-screen response time method of testing include step it is as follows：
S31：Effective touch signal of touch-screen to be measured is obtained by touch-screen response time test device；
S32：The interrupt signal of the touch-screen to be measured is obtained by touching chip；
S33：Time is sent according to effective touch signal generation time and the interrupt signal, touch-screen to be measured is determined
Response time.
In the present embodiment, the touch-screen response time test device includes：Conductor is touched, movable supporting plate is switched,
First switch pipe, first resistor and oscillograph；The touch conductor, for contact measured touch-screen, and by connecting line and institute
State switch connection；The movable supporting plate, is arranged between the switch and the touch-screen to be measured；When the touch conductor
The touch-screen to be measured is effectively touched, the movable supporting plate is linked with the touch-screen to be measured so that the switch is led
It is logical；First resistor one end ground connection, the drain electrode of another termination first switch pipe and the connection end of the oscillograph；It is described
Chip is touched in another probe contact of oscillograph；The first switch tube grid connects the connecting line, and the first switch pipe source electrode connects
Power supply；
When the switch conduction, the touch conductor ground connection now forms and effectively touches, while the first switch pipe
Grounded-grid is turned on, and now, the drain electrode of the first switch pipe sends one close to the supply voltage to the oscillograph
High level, this high level be effective touch signal.
When the switch conduction, the touch conductor ground connection are now formed and effectively touched, the touch chip can be by passing
Sensor senses and recognizes effective touch signal of the touch-screen to be measured, and according to effective touch signal to master controller
Send the interrupt signal.
It should be noted that effective touch signal generation time is height in the touch-screen response time test device
The time that level is produced；The interrupt signal transmission time is for the touch chip according to effective touch signal to main control
Device sends the time of interrupt signal.
The beneficial effects of the utility model are：This touch-screen response time test device of the present utility model, system and
Method, by touching conductor instead of human contact's touch-screen to be measured, and is connected by connecting line with the switch；When the touch
Conductor effectively touches the touch-screen to be measured, and the movable supporting plate links with the touch-screen to be measured so that described to open
Close conducting；The touch conductor ground connection, at the same the grounded-grid conducting of the first switch pipe, now, the first switch pipe
Drain electrode send a high level close to the supply voltage to the oscillograph, this high level for it is described it is effective touch letter
Number；When the switch conduction, the touch conductor ground connection are now formed and effectively touched, the touch chip can be by sensor
Sense and recognize effective touch signal of the touch-screen to be measured, and sent to master controller according to effective touch signal
The interrupt signal.Time is sent according to effective touch signal generation time and the interrupt signal, both can determine that to be measured
The response time of touch-screen.
Test system can not only be simplified using technical solutions of the utility model builds difficulty, reduces cost, and inspection
Survey precision higher.
In addition, technical solutions of the utility model are realized sending high level to oscillograph using switching tube, i.e., by switching tube
Effective touch signal is sent to oscillograph, so that it is determined that effective touch signal generation time.Due to the response of switching tube
Speed, error is smaller, so that the touch-screen response time test device, system and method accuracy of detection are higher.
Preferred embodiment of the present utility model is the foregoing is only, protection model of the present utility model is not intended to limit
Enclose.All any modification, equivalent substitution and improvements made within spirit of the present utility model and principle etc., are all contained in this reality
With in new protection domain.
Claims (6)
1. a kind of touch-screen response time test device, it is characterised in that the device includes：Touch conductor, movable supporting plate,
Switch, first switch pipe, first resistor and oscillograph；
The touch conductor, for contact measured touch-screen, and is connected by connecting line with the switch；
The movable supporting plate, is arranged between the switch and the touch-screen to be measured；When the touch conductor effectively connects
The touch-screen to be measured is contacted, the movable supporting plate links with the touch-screen to be measured so that the switch conduction；
First resistor one end ground connection, the drain electrode of another termination first switch pipe is connected with the probe 2 of the oscillograph
End；Chip is touched in the contact of the CRO coupling 1；
The first switch tube grid connects the connecting line, and the first switch pipe source electrode connects power supply.
2. device according to claim 1, it is characterised in that the touch-screen to be measured is provided with sensor；The sensing
Device is used to for effective touch signal that the touch conductor effectively touches the touch-screen to be measured to be transferred to the touch chip.
3. device according to claim 1 and 2, it is characterised in that the switch uses touch-switch or mechanical switch；
The touch conductor is copper rod or aluminium bar；The first switch pipe is metal oxide semiconductor field effect tube.
4. a kind of touch-screen Response Time Test System, it is characterised in that the system includes：Touch-screen response time test dress
Put, touch chip and master controller；
The touch-screen response time test device is connected with the touch chip；
The touch chip carries out information exchange with the master controller.
5. system according to claim 4, it is characterised in that the touch-screen response time test device includes：Touch
Conductor, movable supporting plate, switch, first switch pipe, first resistor and oscillograph；
The touch conductor, for contact measured touch-screen, and is connected by connecting line with the switch；
The movable supporting plate, is arranged between the switch and the touch-screen to be measured；When the touch conductor effectively connects
The touch-screen to be measured is contacted, the movable supporting plate links with the touch-screen to be measured so that the switch conduction；
First resistor one end ground connection, the drain electrode of another termination first switch pipe is connected with the probe 2 of the oscillograph
End；The CRO coupling 1 connects the touch chip；
The first switch tube grid connects the connecting line, and the first switch pipe source electrode connects power supply.
6. system according to claim 5, it is characterised in that the touch chip is used for by being treated described in sensor sensing
Survey effective touch signal of touch-screen；When effective touch signal is received, interrupt signal is sent to master controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621242936.6U CN206281910U (en) | 2016-11-18 | 2016-11-18 | A kind of touch-screen response time test device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621242936.6U CN206281910U (en) | 2016-11-18 | 2016-11-18 | A kind of touch-screen response time test device and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206281910U true CN206281910U (en) | 2017-06-27 |
Family
ID=59083561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621242936.6U Withdrawn - After Issue CN206281910U (en) | 2016-11-18 | 2016-11-18 | A kind of touch-screen response time test device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206281910U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106483410A (en) * | 2016-11-18 | 2017-03-08 | 歌尔科技有限公司 | A kind of touch screen response time test device, system and method |
| US11487872B2 (en) | 2018-12-07 | 2022-11-01 | Hewlett Packard Enterprise Development Lp | Detection of hardware security attacks |
-
2016
- 2016-11-18 CN CN201621242936.6U patent/CN206281910U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106483410A (en) * | 2016-11-18 | 2017-03-08 | 歌尔科技有限公司 | A kind of touch screen response time test device, system and method |
| CN106483410B (en) * | 2016-11-18 | 2023-07-21 | 歌尔科技有限公司 | Touch screen response time testing device, system and method |
| US11487872B2 (en) | 2018-12-07 | 2022-11-01 | Hewlett Packard Enterprise Development Lp | Detection of hardware security attacks |
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Granted publication date: 20170627 Effective date of abandoning: 20230721 |
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Granted publication date: 20170627 Effective date of abandoning: 20230721 |