CN105183594B - Testing touch screen method and test device - Google Patents
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- 238000012360 testing method Methods 0.000 title claims abstract description 118
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Abstract
The invention discloses a kind of testing touch screen method and test devices.The process of the test method are as follows: show multiple touch areas on the touchscreen, mark multiple setting display areas in advance on the display screen being used cooperatively with touch screen, each setting display area corresponds to a touch point on touch screen；When test starts, pin the touch point of some or all of corresponding setting display touch area on touch screen, when correctly pinning corresponding touch point region, the touch point areal pinned is read as setting number, then continue the first setting time, number of the touch area number pinned on detection touch screen when the first setting time reaches as practical touch point, and be compared with setting number, judge whether touch screen breaks down according to comparison result.The automatic detection and judgement to touch screen failure are realized using test method and test device of the invention, improves and judges precision and detection efficiency.
Description
The application is the China of entitled " testing touch screen method and the test device " that proposes on July 6th, 2012
The divisional application of application for a patent for invention 201210232531.4.
Technical field
The present invention relates to screen the field of test technology, specifically, being to be related to testing touch screen method and test device.
Background technique
Touch screen is tested before factory, to detect the quality of touch screen quality itself and between mainboard
Line stability.Alternatively, touch screen is also required to be detected accordingly after failure.In testing touch screen process
In, quickly and accurately judge whether touch screen breaks down and the type of failure, it is especially heavy for the detection of touch screen
It wants.
Touch screen be easy to the failure occurred first is that " ghost refers to ", i.e., when pressing n touch point on touch screen, understand and exist
Occur the touch point more than n on screen, namely the touch point more than actual number occurs.The prior art cannot judge automatically out
Whether touch screen there is " ghost refers to " failure, artificially can only be compared judgement according to touch operation and touch-responsive, judge to miss
It is poor big, low efficiency.
Summary of the invention
An object of the present invention is to provide a kind of testing touch screen method, may be implemented using this method to touch screen event
The automatic detection and judgement of barrier, improve and judge precision and detection efficiency.
For achieving the above object, method provided by the invention, which adopts the following technical solutions, is achieved:
A kind of testing touch screen method, shows multiple touch areas on the touchscreen, pins the part or complete on touch screen
The touch area number pinned is read as setting number, then when correctly pinning corresponding touch area in portion touch area
Continue a setting time, the touch area number pinned is detected when setting time reaches as actual number, and is a with setting
Number is compared, and judges whether touch screen breaks down according to comparison result.
Testing touch screen method as described above, to be further simplified testing procedure, improving testing efficiency and precision, test
When, whole touch areas on touch screen are preferably pinned, using the number of touch area as setting number, are reached in setting time
When the touch area number pinned of detection as actual number, and be compared with setting number, set if actual number is greater than
Number then determines that touch screen breaks down, and fault verification at this time is " ghost refers to " failure.
Testing touch screen method as described above, to guarantee the accuracy of test, reducing because not pinning touch area accurately
Operation error caused by test error, during the test, if the color for the touch area pinned is become from the first color
Second color, while touch point is shown with third color, then determine correctly to pin the touch area on touch screen, and correctly pressing
Firmly start timing when touch area；Otherwise, it is determined that test operation mistake, exits the secondary test process.
Testing touch screen method as described above, to reduce the artificial behaviour that the touch area pinned in test process is released
Making fault leads to the problem of test result inaccuracy, in timing course, if the color for the touch area pinned is changed,
Then discriminating test operating mistake exits the secondary test process.
Testing touch screen method as described above, to be further ensured that the accuracy of test, reducing artificial mobile touch point
Caused by test error, during the test, the coordinate for the touch point at touch area pinned on real-time detection touch screen,
It is located at the touch point except touch area if it exists, then discriminating test operating mistake, exits the secondary test process.
Testing touch screen method as described above, the touch area are preferably the area for having and being greater than setting area threshold
Face region, in order to easily judge whether touch point has occurred movement in allowable range of error.
Further, for convenient for comparing, to improve test speed, the face region is preferably the circle with regular shape
Region or elliptical region.
Testing touch screen method as described above is test error caused by avoiding as far as possible because of operation error, while to mention
High testing efficiency reduces failure omission factor, is exiting the secondary test process and then secondary execution test process next time；And if
It exits number and reaches setting number, then determine that touch screen breaks down.
Testing touch screen method as described above, to expand test scope, improving measuring accuracy, the multiple touch area
It is preferred that scattering device is on the touch screen.
In addition, the present invention also provides a kind of touch screen surveys that can automatically detect and judge touch screen and whether break down
Trial assembly is set, and judges precision and detection efficiency to improve.
To realize the above-mentioned technical purpose, testing device for touch screens provided by the invention includes:
Touch area display unit, for showing touch area on the touchscreen；
Touch area detection unit, for detecting whether touch area is pinned；
Correctness judging unit is touched, for determining whether touch area is correctly pinned；
Touch area touches number storage and comparing unit, and for storing, touch area detection unit is detected to be pinned
Touch area number, and processing is compared to the number stored；
Timing unit, for setting timing；And
Test result output unit, for touching comparison result output of the number storage with comparing unit according to touch area
The result whether touch screen breaks down.
Compared with prior art, the advantages and positive effects of the present invention are: test method provided by the present invention is touching
Screen display goes out multiple touch areas, accurately, easily and quickly touch using the touch area shown, and can be automatic
Whether touch screen there is " ghost refers to " failure within the set time for judgement, and error in judgement rate is low, and detection efficiency is high, is particularly suitable for
Large scale touch screen detection on production line.
After a specific embodiment of the invention is read in conjunction with the figure, the other features and advantages of the invention will become more clear
Chu.
Detailed description of the invention
Fig. 1 is the flow chart of inventive touch screen test method one embodiment；
Fig. 2 is the flow chart of inventive touch screen second embodiment of test method；
Fig. 3 is the schematic illustration of inventive touch screen test method；
Fig. 4 is the structural block diagram of inventive touch screen test device one embodiment.
Specific embodiment
The technical scheme of the present invention will be explained in further detail with reference to the accompanying drawings and detailed description.
Referring to FIG. 1, the Fig. 1 show the flow chart of inventive touch screen test method one embodiment.
In conjunction with the schematic illustration of Fig. 3, the process that Fig. 1 embodiment tests touch screen is specific as follows:
Step 101: process starts.
Step 102: showing multiple touch areas on the touchscreen.
The embodiment shows multiple touch areas before being tested on the touchscreen first.Touch area can be
Tester pre-sets and stores, directly calls the region of display from storage unit when in use, is also possible to test
The region that personnel set and show before each test.The number of touch area and position can be according to measuring accuracies etc.
Test request is adjusted, but preferably multiple setting touch area scattering devices in the entire touch area of touch screen, with expansion
Big test scope improves measuring accuracy.For example, as shown in figure 3, five border circular areas 31 to 35 can be marked on the touch screen 3
As touch area, the radius of border circular areas can according to need reasonable setting, and each border circular areas corresponds on touch screen
A touch point.For example, one area threshold of setting, it is desirable that the area of each border circular areas is greater than the area threshold, then may be used
Go out a radius threshold with threshold calculations according to area, the radius that each border circular areas is then arranged is greater than the radius threshold.
In this embodiment, touch area is not limited to rounded face region shown in Fig. 3, with certain area, may be used also
To be the face region of other shapes, such as elliptical region.Alternatively, also can also be a region.But it is preferred that have certain area,
The border circular areas and elliptical region of regular shape, in this way, convenient for easily whether judging touch point in allowable range of error
Movement has occurred, judge conveniently, process it is simple, conducive to the raising of testing efficiency, specifically refer to and following Fig. 2 embodiment retouched
It states.
Step 103: when test starts, pinning the touch area on touch screen.
Here, according to test needs, it can choose region of the part or all of touch area as test.For example, right
In five touch areas illustrated in fig. 3, four therein are only selected to use.When test starts, with four fingers or electrostatic
Pen sequentially or simultaneously pins this four touch areas on touch screen, and each touch area will correspond to a touch point.
Step 104: judging whether correctly to pin required touch area.If so, going to step 106；If it is not, executing step
105。
Since the embodiment is when judging test result, need to obtain actual touch area, to guarantee the accurate of test
Property, reduce test error caused by operation error because not pinning touch area accurately, need first to judge whether correctly by
Required touch area is lived.The color of touch area be can use to determine whether correctly to have pinned touch area, for example,
Using following judgment methods: if the color for the touch area pinned becomes the second color from the first color, while with third color
Show touch point, e.g., the color of touch area becomes green from blue, while with red display touch point, then determining correctly to press
Touch area is lived；Otherwise it is assumed that not pinning touch area correctly.
Step 105: if not pinning required touch area correctly, if being to continue with test, test result will
Error is generated because of the operation error.Therefore, determine the secondary test operation mistake.Then, step 113 is gone to.
Step 106: after correctly pinning required touch area, obtaining touch area and set number.
Whether there is " ghost refers to " failure for detection touch screen, is mainly sentenced according to the number for the touch area pinned
It is disconnected.Therefore, it is necessary first to obtain the number in the original touch region pinned when test starts.In this embodiment, original touching
Touching areal is four set in touch area number namely step 103 correctly pin when test starts, that test is required
It is a.Specifically, it after correctly pinning required touch area, can be examined by the touch point detection unit in touch screen
The number for the touch area pinned is measured, and using the number as setting number.
If selecting all touch areas is required touch area, as needed the institute in Fig. 3 there are five touch area,
In this case, the touch area setting number pinned is identical as the number of touch area.Therefore, if all selected using this
The mode selected then directly is carried out use for the number of shown touch area out as touch area setting number, is not necessarily to
Touch point detection unit is recycled to be detected, so that testing procedure is simplified, conducive to the raising of testing efficiency.
Step 107: after correctly pinning required touch area and obtaining touch area setting number, according to pre-
The timing time first set starts timing.
Timing time can be adjusted according to the testing requirement of measuring accuracy and production line, for example, being selected as 5 seconds.
Step 108: judging whether timing time has arrived.If having arrived, step 109 is executed；If not arriving, step 107 is gone to
Continue calendar scheduling to wait for.
It should be noted that needing to pin corresponding touch point always in this timing course.
Step 109: when timing time reaches, detecting the number for the touch area actually pinned on touch screen as practical
Then actual number is compared by number with setting number.
Step 110: judging whether actual number is greater than setting number.If so, executing step 111；If it is not, executing step
112。
Step 111: if the number of practical touch area is greater than setting number, determining that touch screen breaks down, and the event
Barrier is " ghost refers to " failure, and exports judgement result.Then, step 113 is executed.So-called " ghost refers to " failure, namely pressing touching
When touching n (setting number) touch areas on screen, can occur the touch area more than n (actual number) on screen.
Step 112: if the number of practical touch area determines that touch screen is normal, and export no more than setting number
Touch screen normally determines result.Then, step 113 is executed.
Step 113: the step is transferred by above-mentioned steps 105, step 111 and step 112, that is, is judging test operation mistake
Or when being completed, the secondary test process is exited.
Step 114: process terminates.
The test method that the embodiment provides shows multiple touch areas on the touchscreen, utilizes the Petting Area shown
Domain accurately, easily and quickly touch, and can judge automatically out whether touch screen " ghost refers to " failure occurs, judges to miss
Rate is low, and detection efficiency is high, the large scale touch screen detection being particularly suitable on production line.
Referring to FIG. 2, being somebody's turn to do, Fig. 2 shows the flow charts of inventive touch screen second embodiment of test method.
As shown in Fig. 2, the method flow of the embodiment test touch screen is as follows:
Step 201: process starts.
Step 202: showing multiple touch areas on the touchscreen.
The setting principle of touch area and requirement can refer to described in Fig. 1 embodiment.For example, still as shown in figure 3, can touch
It touches and marks five border circular areas 31 to 35 on screen 3, the area of this five border circular areas is all larger than setting area threshold, and each circle
Shape region corresponds to a touch point on touch screen.
Step 203: when test starts, pinning whole touch areas on touch screen.
Five touch areas shown in Fig. 3 are sequentially or simultaneously pinned when test starts with five fingers or electrostatic pen
This five touch areas.
Step 204: judging whether correctly to pin required touch area.If so, executing step 205；If it is not, going to step
215。
Since the embodiment is when judging test result, need to obtain actual touch area, to guarantee the accurate of test
Property, reduce test error caused by operation error because not pinning touch area accurately, need first to judge whether correctly by
Required touch area is lived.The color of touch area be can use to determine whether correctly to have pinned touch area, for example,
Using following judgment methods: if the color for the touch area pinned becomes the second color from the first color, while with third color
Show touch point, e.g., the color of touch area becomes green from blue, while with red display touch point, then determining correctly to press
Touch area is lived；Otherwise it is assumed that not pinning touch area correctly.
Step 205: after correctly pinning required touch area, the touch area number that would indicate that is as setting
Number.
In this embodiment, due to being pinned using all touch areas as required touch area, in this case,
It is identical as the number of the touch area shown that touch area sets number.Therefore, then the touch area that directly would indicate that
Number as touch area setting number come using.
Step 206: after correctly pinning required touch area, obtaining touch area setting number, according to preparatory
The timing time of setting starts timing.
Timing time can be adjusted according to the testing requirement of measuring accuracy and production line, for example, being selected as 5 seconds.
Step 207: the coordinate for the touch point at touch area that real-time detection is pinned.
To guarantee test error caused by the artificial mobile touch point of the accuracy tested, reduction, which is being tested
The coordinate for the touch point at touch area for needing real-time detection to pin in the process.
Step 208: judging whether there is the touch point except touch area.If it exists, step 215 is gone to；If no
In the presence of execution step 209.
The touch point except touch area can be judged whether there is using following methods: for certain area
Face region for, each coordinate put can be obtained in touch area when showing touch area.With touch area
In the identical coordinate system of point on detection touch screen touch point coordinate, the touch point coordinate that will test and touch area midpoint
Coordinate be compared, can judge whether the coordinate of touch point falls in except touch area.And for coordinate, then
The touch point coordinate that can directly will test is compared with point coordinate, if the two is different, then it is assumed that touch point is located at touch area
Except.When due to touch screen setting, touch location is usually effective touch within a certain area, therefore, the embodiment
It is preferred that using face region as touch area, in order to easily judge whether touch point is moved within the scope of allowable error
It is dynamic.
On the one hand the purpose that the step is arranged is to avoid touch point shadow due to movement occurs for manual operation during the test
The judgement for ringing test result, is on the other hand that can find drifting fault existing for touch screen in time.
Step 209: when there is no the touch point being located at outside touch area, judging the color for the touch area pinned
Whether change.If changing, step 215 is gone to；If not changing, step 210 is executed.
During the test, if the touch area pinned artificially is unclamped, it just will affect the judgement of test result, this category
In manual operation mistake, and not necessarily failure has occurred in touch screen.Caused by this kind of manual operation mistake
Test error, the color of the embodiment touch area that real-time detection is pinned during the test.If color is changed,
For example, touch area is green when normally pinning, if color has become blue or red, then it is assumed that touch area is by artificial pine
It opens, and executes different treatment processes according to judging result.
Step 210: judging whether timing time reaches.If reaching, step 211 is executed；If not reaching, step 206 is gone to,
Continue the position that the touch point in touch area is judged during calendar scheduling waits for and the color of touch area.
Step 211: when timing time reaches, detecting the touch area number actually pinned on touch screen as practical
Then actual number is compared by number with setting number.
Step 212: judging whether actual number is greater than setting number.If so, executing step 213；If it is not, executing step
214。
Step 213: if the number for the touch area actually pinned is greater than setting number, determining that " ghost occurs in touch screen
Refer to " failure, namely after pressing five on touch screen touch areas, certain times, occur on screen more than five
Touch area.After output determines result, step 216 is executed.
Step 214: if the number of practical touch area determines that touch screen is normal, and export no more than setting number
Touch screen normally determines result.Then, step 216 is executed.
Step 215: the step is transferred according to the judging result of above-mentioned steps 204, step 208 and step 209, Ye Jiru
Fruit does not pin required touch area correctly or there is the touch point being located at except touch area or the touch pinned
The color in region is changed, then discriminating test operating mistake.Then, step 216 is executed.
Step 216: the step is transferred by above-mentioned steps 213, step 214 and step 215, that is, is judging test operation mistake
Or when being completed, the secondary test process is exited.
Step 217: judgement exits whether number reaches 3 times.If so, executing step 218；If it is not, step 203 is gone to, then
Secondary execution test process.
Since the human operational error in operating process is inevitable, which allows to be performed a plurality of times test process to subtract
The influence of few human error.In order to improve testing efficiency, reduce failure omission factor, the number for repeating test will be limited
Because if same mistake repeatedly occurs, such as repeatedly there is touch point in test process and is located at except touch area in system
Phenomenon then may not be because caused by human operational error, it is most likely that occur drift event really just because of touch screen
Caused by barrier.It therefore, is 3 times this embodiment provides for repeating the number of test, such number setting can either give
The chance that tester sufficiently corrects faulty operation is given, the low of testing efficiency caused by frequently repeating is in turn avoided.
Step 218: reaching 3 times if exiting number, determine that touch screen breaks down, and export judgement result.
Step 219: process terminates.
In this embodiment, if causing to have repeated and surveying three times because touch point is located at the reason outside touch area
Examination, and if still there is the problem, then the operating mistake of artificially mobile touch point can be excluded, and determine touch screen and occur
Touch location and actual touch position in " drift " failure, namely the touch screen that identifies are inconsistent and touch screen is caused to ring
Answer the failure of mistake.So can not only detect that touch screen breaks down, and can using the test method of the embodiment
It detects whether that " ghost refers to " failure or " drift " failure has occurred, the degree of automation and the test for improving testing touch screen are accurate
Degree.
Referring to FIG. 4, the Fig. 4 shows the structural block diagram of inventive touch screen test device one embodiment.
As shown in figure 4, the structure of the test device of the embodiment and the function of each section are as follows:
The test device of the embodiment includes touch area display unit 41, touch area detection unit 42, touches just
True sex determination unit 43, touch area touch number storage and comparing unit 44, test result output unit 45 and timing unit
46。
Wherein, touch area display unit 41 is used to show touch area on the touchscreen, and herein, touch area can
To be that tester pre-sets and stores, directly calls the region of display from storage unit when in use, it is also possible to
The region that tester sets and shows before each test.
After touch area display unit 41 shows touch area on a display screen, touch area detection unit 42 will
Whether pinned detection touch area.In this embodiment, touch area detection unit 42 can constantly work, lasting detection touching
Touch whether region is touched, pinned.
After touch area display unit 41 detects that touch area is pinned, correctness judging unit 43 is touched by basis
Preset criterion determines whether touch area is correctly pinned.For example, can be judged according to following standards: if pin
The color of touch area becomes the second color from the first color, while showing touch point, e.g., the face of touch area with third color
Color becomes green from blue, while with red display touch point, then determines correctly to have pinned touch area；Otherwise it is assumed that not having
Correctly pin touch area.
It is touching after correctness judging unit 43 determined the touch area correctly pinned, is then counting and correctly pin
Touch area number touches number storage and comparing unit 44 as setting number, and by setting number storage to touch area
In.Meanwhile it controlling timing unit 46 and starting timing.
When the timing of timing unit 46 reaches, control touch area detection unit 42 detects the touching pinned at this time
The number in region is touched, which is stored into touch area as actual number and touches in number storage and comparing unit 44, and with
Stored setting number is compared processing, and comparing that treated, result will be exported by test result output unit 45.
The more specific working principle of the testing device for touch screens of the embodiment and process can be with reference to above-mentioned to Fig. 1 test method process
Description.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than is limited；Although referring to aforementioned reality
Applying example, invention is explained in detail, for those of ordinary skill in the art, still can be to aforementioned implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these are modified or replace
It changes, the spirit and scope for claimed technical solution of the invention that it does not separate the essence of the corresponding technical solution.
Claims (9)
1. a kind of testing touch screen method characterized by comprising
The multiple touch areas of screen display are touched, determine the touch area correctly pinned, read the Petting Area correctly pinned
Domain number is as setting number；
Start timing, when setting time reaches, the touch area number that detection continues to be pinned is as actual number；
Judge whether actual number is greater than setting number, if actual number is greater than setting number, determine that touch screen breaks down,
And the failure is " ghost refers to " failure, and exports judgement result；If actual number determines touch screen just no more than setting number
Often, it and exports touch screen and normally determines result.
2. testing touch screen method according to claim 1, which is characterized in that determine the touch area correctly pinned,
It specifically includes:
If the color for the touch area pinned becomes the second color from the first color, while showing touch point with third color,
The touch area for being judged to correctly being pinned.
3. testing touch screen method according to claim 2, which is characterized in that further include:
If the color for the touch area pinned is not to become the second color from the first color, while showing and touching with third color
Point, discriminating test operating mistake exit the secondary test process.
4. testing touch screen method according to claim 1, which is characterized in that determine the touch area correctly pinned,
It specifically includes:
The coordinate for the touch point at touch area pinned on detection touch screen, if the coordinate is within touch area
The coordinate of touch point, the touch area for being judged to correctly being pinned.
5. testing touch screen method according to claim 4, which is characterized in that the touch area is with greater than setting
The face region of the area of area threshold.
6. testing touch screen method according to claim 5, which is characterized in that the face region is border circular areas or ellipse
Shape region.
7. testing touch screen method according to claim 1, which is characterized in that the multiple touch area scattering device exists
On the touch screen.
8. a kind of testing device for touch screens characterized by comprising
Touch area display unit, for showing multiple touch areas on the touchscreen；
Correctness judging unit is touched, the touch area correctly pinned is read in the touch area for determining correctly to be pinned
Number is as setting number；
Touch area touches number storage and comparing unit, and for starting timing, when setting time reaches, detection continues to be pressed
Touch area number firmly is as actual number；
Test result output unit, for judging whether actual number is greater than setting number, if actual number is greater than setting
Number determines that touch screen breaks down, and the failure is " ghost refers to " failure, and exports judgement result；If actual number is not more than
Number is set, then determines that touch screen is normal, and export touch screen and normally determine result.
9. testing device for touch screens according to claim 8, which is characterized in that touch correctness judging unit, further includes:
If the color of the touch area for being pinned becomes the second color from the first color, while being shown and being touched with third color
Point, the touch area for being judged to correctly being pinned.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510466631.7A CN105183594B (en) | 2012-07-06 | 2012-07-06 | Testing touch screen method and test device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210232531.4A CN102779083B (en) | 2012-07-06 | 2012-07-06 | Testing touch screen method and proving installation |
| CN201510466631.7A CN105183594B (en) | 2012-07-06 | 2012-07-06 | Testing touch screen method and test device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103019600A (en) * | 2012-12-14 | 2013-04-03 | 广东欧珀移动通信有限公司 | Method and system for starting application programs of mobile terminal |
| JP6396385B2 (en) * | 2016-10-06 | 2018-09-26 | ファナック株式会社 | Display device, inspection method, and inspection program |
| CN108919021A (en) * | 2018-05-15 | 2018-11-30 | 南京丹迪克科技开发有限公司 | A kind of test point automatic testing method |
| CN110309023B (en) * | 2019-06-20 | 2022-11-15 | 佛吉亚歌乐电子(丰城)有限公司 | Off-line detection method for touch screen of vehicle machine |
| CN111175022A (en) * | 2019-11-29 | 2020-05-19 | 芜湖职业技术学院 | Detection device and method for liquid crystal display screen of ultrasonic cleaning machine |
| CN113741780A (en) * | 2020-05-29 | 2021-12-03 | 上海惠芽信息技术有限公司 | Touch screen detection method, device and system |
| CN112148541A (en) * | 2020-09-16 | 2020-12-29 | 珠海格力电器股份有限公司 | Touch screen testing method and electronic equipment |
| CN112835756B (en) * | 2021-02-07 | 2022-06-14 | 深圳市康冠商用科技有限公司 | Touch screen testing method and device, computer equipment and storage medium |
| CN113157504A (en) * | 2021-03-26 | 2021-07-23 | 歌尔股份有限公司 | Touch screen equipment testing method and touch screen equipment testing system |
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| CN102073427A (en) * | 2011-01-04 | 2011-05-25 | 苏州瀚瑞微电子有限公司 | Multi-finger detection method of capacitive touch screen |
| CN102193690A (en) * | 2011-05-31 | 2011-09-21 | 中航华东光电有限公司 | Infrared touch screen and multi-touch positioning method thereof |
| CN102314387A (en) * | 2011-09-26 | 2012-01-11 | 惠州Tcl移动通信有限公司 | Method for measuring accuracy of touch screen |
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| CN102419661B (en) * | 2011-03-09 | 2014-09-03 | 北京汇冠新技术股份有限公司 | Touch positioning method, touch positioning device and infrared touch screen |
| CN102331872A (en) * | 2011-05-30 | 2012-01-25 | 广州视睿电子科技有限公司 | Method and device for achieving effect of middle mouse button on touch screen |
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| CN102073427A (en) * | 2011-01-04 | 2011-05-25 | 苏州瀚瑞微电子有限公司 | Multi-finger detection method of capacitive touch screen |
| CN102193690A (en) * | 2011-05-31 | 2011-09-21 | 中航华东光电有限公司 | Infrared touch screen and multi-touch positioning method thereof |
| CN102314387A (en) * | 2011-09-26 | 2012-01-11 | 惠州Tcl移动通信有限公司 | Method for measuring accuracy of touch screen |
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| CN105183594A (en) | 2015-12-23 |
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