CN103487692B - A kind of quality determining method of touch screen - Google Patents
A kind of quality determining method of touch screen Download PDFInfo
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- CN103487692B CN103487692B CN201310441213.3A CN201310441213A CN103487692B CN 103487692 B CN103487692 B CN 103487692B CN 201310441213 A CN201310441213 A CN 201310441213A CN 103487692 B CN103487692 B CN 103487692B
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Abstract
The invention discloses the quality determining method of a kind of touch screen, comprise the following steps: a, the touch body point touching screen of use band camera function, obtain touching body actual click position on a display screen according to click location, and on a display screen labelling is made in actual click position；B, according to touch body actual click position, on a display screen generate at least three be positioned at touch body imaging region reference point；C, to touch body click location, actual click position and reference point imaging on the touchscreen, and imaging results is returned to detect controller, detection controller calculates the deviation value touched between body click location and actual click position on a display screen on the touchscreen according to imaging results；D, compare deviation value and compare with setting value, determine that touch screen quality is the most qualified.This invention simplifies the quality testing operation of touch screen, can not only quickly be fully completed the quality testing of touch screen, additionally it is possible to improve the accuracy of touch screen quality testing.
Description
Technical field
The present invention relates to touch screen technology field, particularly relate to the quality determining method of a kind of touch screen.
Background technology
Touch display screen and include touch screen and display screen.Wherein, touch screen includes touching detection part, touches detection part and is used for detecting user touch location, and it is arranged on before indicator screen, display screen is served only for display information, provides information to client under the control of the controller, and touch screen is operated by the information that client shows according to display screen.
Owing to touch screen exists machine error and the error produced because of amplification factor, when clicking on a certain button on the touchscreen or select a certain function, the click on touch screen cannot be made correct response by built-in software, there is a defect for A point response B point.Therefore, in order to ensure the touch precision of touch screen, i.e. ensureing the actual position touched and want the position consistency that touches, touch screen was required for carrying out various detection before coming into operation.
At present, touch screen, before coming into operation, all can use calibration algorithm to calibrate for error, if but touch screen is off quality, touch precision also can be affected, therefore, after having calibrated for error, in addition it is also necessary to the quality of touch screen is detected, to ensure the touch precision of touch screen.As China Patent No. " 200710124032.2 " discloses a kind of testing device for touch screens and method, its publication date is on 05 28th, 2008, this testing touch screen method has the following step successively: the standard screen of known test result is positioned over aforementioned pressing in test machine, and input test parameter is in aforementioned computer equipment；Measure aforesaid standards screen in aforementioned testing standard point, to obtain testing standard value, and aforementioned testing standard value is stored in aforementioned computer equipment；Aforementioned touch screen to be measured is positioned over aforementioned pressing in test machine；Determine and revise testing touch screen to be measured point, and measuring, obtaining test result after being compared with testing standard value by the measured value of gained, and stored and export.
But the prior art with above-mentioned patent document as representative, in actual use, remain following defect: one, require to press the testing standard point that test machine is accurately directed on screen during detection error, but it is extremely difficult to this requirement with existing technology, not only there is quality testing complex procedures and the shortcoming of testing result poor accuracy, there is also the shortcoming that detection efficiency is low and cannot meet mass detection；Two, measuring instrument is expensive, not easy care.
Summary of the invention
It is an object of the invention to overcome the above-mentioned problems in the prior art, the quality determining method of a kind of touch screen is provided, this invention simplifies the quality testing operation of touch screen, can not only quickly be fully completed the quality testing of touch screen, additionally it is possible to improve the accuracy of touch screen quality testing.
For achieving the above object, the technical solution used in the present invention is as follows:
The quality determining method of a kind of touch screen, it is characterised in that comprise the following steps:
A, the touch body point touching screen of use band camera function, according to touching body click location on the touchscreen, obtain touching body actual click position on a display screen, and on a display screen the actual click position touching body made labelling；
B, according to touch body actual click position on a display screen, on a display screen generate at least three reference point, described reference point be positioned at touch body imaging region；
C, to the reference point imaging touched on body click location, marked actual click position and display screen on the touchscreen, and imaging results is returned to detect controller, detection controller calculates the deviation value touched between body click location and actual click position on a display screen on the touchscreen according to imaging results；
D, the deviation value obtained is compared with setting value, determine that the quality of touch screen is the most qualified.
In described step a, touch body to click in the arbitrary region of touch screen repeatedly, touch body and often click on a touch screen, detection controller is according to touching body click location on the touchscreen, obtain touching body actual click position on a display screen, and click on corresponding actual click position each time and make labelling touching body on a display screen.
In described step b, detection controller, according to touching the actual click position that body is clicked on each time, generates three reference points on a display screen, and three reference points are isosceles triangle arrangement.
In described step c, respectively to touching body click location, marked actual click position and reference point imaging the most on the touchscreen, and return to detect controller by imaging results, detection controller calculates the deviation value touched between body click location and actual click position on a display screen on the touchscreen according to imaging results, after touch body has repeatedly been clicked on, obtain multiple deviation value.
Described touch body includes hollow cylinder, is provided with photographic head in one end of described cylinder, is provided with transparent touch sheet in the other end, and described photographic head is connected with detection controller.
Employing it is an advantage of the current invention that:
One, in the present invention, touch body repeatedly point touching screen with camera function, multiple deviation value can be obtained according to touching body click location on the touchscreen, actual click position on a display screen and reference point when clicking on every time, the deviation value obtained is compared with setting value, so that it may detect that the quality of touch screen is the most qualified.In detection operation, it is not necessary to the standard point accurately set on alignment touch screen just can complete the quality testing of touch screen, not only simplify detection operation, also improves detection efficiency；Can be with the arbitrary region of point touching screen owing to touching body, therefore, it is possible to the quality of touch screen any part is detected, be conducive to improving the accuracy of testing result；It addition, it is the most to touch body number of clicks on the touchscreen, obtain deviation value the most with the fiducial value of setting value, be more beneficial for improving the accuracy of testing result；Compared with the prior art that China Patent No. " 200710124032.2 " is representative, the detecting instrument used in the present invention also has the advantage that making is simple, with low cost and easy to maintenance；Further, use the present invention can detect the arbitrary region of touch screen, the quality at each position of touch screen is carried out complete detection, it is possible to prevent touch screen off quality from dispatching from the factory use, be conducive to improving the competitiveness of product in market.
Two, in the present invention, photographic head and touch body arrange all-in-one-piece structure, it is simple to touch body and can be conducive to improving detection efficiency rapidly, accurately to touching body click location on the touchscreen and click location imaging on a display screen when point touching screen.
Detailed description of the invention
The quality determining method of a kind of touch screen, it is characterised in that comprise the following steps:
A, the touch body point touching screen of use band camera function, according to touching body click location on the touchscreen, obtain touching body actual click position on a display screen, and on a display screen the actual click position touching body made labelling；
B, according to touching body actual click position on a display screen, generate at least three reference point on a display screen, described reference point is positioned at the imaging region touching body, and the coordinate position of reference point is known；
C, to the reference point imaging touched on body click location, marked actual click position and display screen on the touchscreen, and imaging results is returned to detect controller, detection controller calculates the deviation value touched between body click location and actual click position on a display screen on the touchscreen according to imaging results；
D, the deviation value obtained is compared with setting value, determine that the quality of touch screen is the most qualified.
In step a of the present invention, by the cross central line of touch screen and longitudinal centre line, the touch area of touch screen can be divided into four regions, each region body that is touched uniformly is clicked on repeatedly, to guarantee to carry out touch screen complete detection, improves the accuracy of testing result；Touch body and often click on a touch screen, detection controller is according to touching body click location on the touchscreen, obtain touching body actual click position on a display screen, and click on corresponding actual click position each time and make labelling touching body on a display screen, this labelling preferably employs cursor labelling, it is simple to touch the photographic head on body according to being marked as picture.
In step b of the present invention, detection controller is according to touching the actual click position that body is clicked on each time, generate reference point known to three coordinates on a display screen, and, three reference points arrange in isosceles triangle the most on a display screen, it is simple to quickly calculated the deviation value touched between body click location and actual click position on a display screen on the touchscreen by nearest reference point.
In step c of the present invention, respectively to touching body click location, marked actual click position and reference point imaging the most on the touchscreen, and return to detect controller by imaging results, detection controller calculates the deviation value touched between body click location and actual click position on a display screen on the touchscreen according to imaging results, after touch body has repeatedly been clicked on, obtain multiple deviation value.
In the present invention, after described actual click position refers to touch body point touching screen, the click location of real response on a display screen；After described touch body point touching screen, on a display screen with this click just to click location be need in theory response position, need there is certain deviation between position and the actual click position of response in theory, therefore, by being positioned at the reference point of imaging region on Imaging touch body click location, marked actual click position and display screen on the touchscreen, it becomes possible to calculate deviation value between the two rapidly.
In the present invention, touch body when point touching screen, preferably employ touch body center touch screen is clicked on, and make marks to touching body center, so, touch body when point touching screen, it is possible to rapidly to the reference point imaging touched on body click location, marked actual click position and display screen on the touchscreen.
In the present invention, the most owing to touching the number of times of body click, the testing result obtained is the most accurate, therefore, the number of clicks of described touch body can be that 80 times, 100 times, 140 times or 200 are inferior, but being not limited to above-mentioned optimal way, the actual click number of times touching body determines according to size and the examination criteria of touch screen.
In the present invention, described touch body includes hollow cylinder, is provided with photographic head in one end of described cylinder, is provided with transparent touch sheet in the other end, and the center of described touch sheet is the click center touching body, and described photographic head is connected with detection controller.Further, the center of the most described touch sheet overlaps in the vertical direction of touch screen with the center of photographic head.
Claims (5)
1. the quality determining method of a touch screen, it is characterised in that comprise the following steps:
A, the touch body point touching screen of use band camera function, according to touching body click location on the touchscreen, obtain touching body actual click position on a display screen, and on a display screen the actual click position touching body made labelling；
B, according to touch body actual click position on a display screen, on a display screen generate at least three reference point, described reference point be positioned at touch body imaging region；
C, to the reference point imaging touched on body click location, marked actual click position and display screen on the touchscreen, and imaging results is returned to detect controller, detection controller calculates the deviation value touched between body click location and actual click position on a display screen on the touchscreen according to imaging results；
D, the deviation value obtained is compared with setting value, determine that the quality of touch screen is the most qualified.
The quality determining method of a kind of touch screen the most as claimed in claim 1, it is characterized in that: in described step a, touch body to click in the arbitrary region of touch screen repeatedly, touch body and often click on a touch screen, detection controller is according to touching body click location on the touchscreen, obtain touching body actual click position on a display screen, and click on corresponding actual click position each time and make labelling touching body on a display screen.
The quality determining method of a kind of touch screen the most as claimed in claim 2, it is characterized in that: in described step b, detection controller, according to touching the actual click position that body is clicked on each time, generates three reference points on a display screen, and three reference points are isosceles triangle arrangement.
The quality determining method of a kind of touch screen the most as claimed in claim 3, it is characterized in that: in described step c, respectively to touching body click location, marked actual click position and reference point imaging the most on the touchscreen, and return to detect controller by imaging results, detection controller calculates the deviation value touched between body click location and actual click position on a display screen on the touchscreen according to imaging results, after touch body has repeatedly been clicked on, obtain multiple deviation value.
The quality determining method of a kind of touch screen the most as claimed in claim 1 or 2, it is characterized in that: described touch body includes hollow cylinder, being provided with photographic head in one end of described cylinder, be provided with transparent touch sheet in the other end, described photographic head is connected with detection controller.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104461801B (en) * | 2014-11-28 | 2017-11-07 | 广东欧珀移动通信有限公司 | A kind of method of testing and system of touch-screen susceptibility |
| CN110398682A (en) | 2018-04-19 | 2019-11-01 | 京东方科技集团股份有限公司 | Touch-control test device and touch-control test method |
| CN109470448B (en) * | 2018-09-28 | 2023-11-03 | 南京华睿川电子科技有限公司 | Touch screen imaging detection method |
| CN112485031B (en) * | 2020-11-13 | 2023-07-14 | 上海伟世通汽车电子系统有限公司 | System and method for detecting functions of central control screen of automobile |
| CN117076283B (en) * | 2023-10-17 | 2024-01-26 | 江苏纳帝电子科技有限公司 | Touch screen performance quality detection analysis method |
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| JP5403861B2 (en) * | 2006-11-06 | 2014-01-29 | キヤノン株式会社 | Information processing apparatus and information processing method |
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| EP2428880A1 (en) * | 2009-01-27 | 2012-03-14 | Research In Motion Limited | A handheld electronic device having a touchscreen and a method of using a touchscreen of a handheld electronic device |
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