CN1216344C - Testing method of contact screen linerarity - Google Patents
Testing method of contact screen linerarity Download PDFInfo
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- CN1216344C CN1216344C CN 02125497 CN02125497A CN1216344C CN 1216344 C CN1216344 C CN 1216344C CN 02125497 CN02125497 CN 02125497 CN 02125497 A CN02125497 A CN 02125497A CN 1216344 C CN1216344 C CN 1216344C
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Abstract
The present invention discloses a method for testing the linearity of a touch screen. The method ensures that test points are selected in the transverse direction, the longitudinal direction and the diagonal direction of the touch screen to uniformly form straight lines. The actual coordinate values of an original point and a polar point are obtained by clicking the original point and the polar point on the touch screen; the two coordinate values are utilized to calculate the pre-estimated coordinate values of all test points on the touch screen. The test points on the touch screen are respectively clicked; if the difference value between the actual coordinate value of each test point and the pre-estimated coordinate value of the test point is within an allowable range, the test passes, else an alarm is given to end the test when the difference value between the actual coordinate value of one test point and the pre-estimated coordinate value of the test point is not within the allowable range. The method realizes the test to the linearity of the touch screen, enhances the accuracy of batch tests by pre-estimating the coordinate values of the test points, and realizes accurate tests to the linearity of parts of regions of the touch screen under the precondition without increasing the test complex degree by neglecting the test to parts of the test points.
Description
Technical field
The present invention relates to the testing touch screen technical field, particularly a kind of method of testing of the touch-screen linearity, this method are used for the accuracy of test touch screen.
Background technology
Touch screen technology appears at early 1990s as a kind of new human-computer interaction technology, and be used in computing machine more and more, in portable terminal and the various handheld device.The user only need touch icon or the literal on the touch-screen gently, just can realize the operation to equipment.Therefore, broken away from operation, made man-machine interaction more convenient and simple and direct external human-computer interaction device such as keyboard or mouse.Touch screen technology has become the easiest current man-machine communication input equipment, is an important ring of man-machine interaction, and the quality of touch-screen quality has directly determined the performance of equipment.
In touch-screen, the conductive layer that has two layers of conductive material to constitute has many tiny transparent isolating points that they are separated insulation between them.When clicking screen, directions X adds certain voltage, gets the magnitude of voltage of this point from the Y direction, can obtain the coordinate of this X-axis through converting; In like manner also can draw the coordinate of this Y-axis.In every performance index of touch-screen, the linearity is of paramount importance one, and its levels of precision directly has influence on the accuracy of touch-screen.But, also do not have the method for the ripe measurement touch-screen linearity of a cover so far.Simultaneously, because the influence of factors such as production technology, composition material, testing apparatus, temperature, therefore even the absolute coordinate with the point on the same, physical on each touch-screen in a collection of product can not be the same, adopt the method for predetermined fixed test point coordinate value to test obviously and can reduce accuracy of test.
Summary of the invention
In view of this, fundamental purpose of the present invention is to provide a kind of method of testing of the touch-screen linearity, utilize this method can realize by test to the touch-screen linearity, simultaneously, in batch testing, this method all pre-determines the coordinate figure of its test point again to each touch-screen, to reduce the error in the batch testing.
For achieving the above object, realize that the present invention needs following steps:
A. choose test point, this test points selected guarantees all have test point to constitute straight line on horizontal, the vertical and diagonal of touch-screen, and this test point evenly distributes on this straight line;
B. click the initial point and the limit of touch-screen respectively, obtain the actual coordinate value of this initial point and limit, this initial point is the point of coordinate figure minimum on the touch-screen physical location, and this limit is the point of coordinate figure maximum on the touch-screen physical location;
C. calculate the difference of this initial point actual coordinate value and this limit actual coordinate value, difference is added one divide equally carrying out equally distributed number of checkpoints on the horizontal and vertical straight line on horizontal ordinate and the ordinate respectively, obtain the equal score value of the difference on horizontal ordinate and the ordinate;
D. utilize equal score value of horizontal ordinate and the equal score value of ordinate to calculate the coordinate figure of estimating of each test point;
E. a test point clicking touch-screen obtains the actual coordinate value of this test point, calculate the actual coordinate value and the difference of estimating coordinate figure of this test point, judge that whether this difference is greater than a predefined permissible value, then report to the police in this way, and finish to test, otherwise at next test point repeating step e, wherein, described predefined permissible value is to convert with the area that the contact is clicked to obtain.
Wherein, described step b further comprises:
Whether the actual coordinate value of judging the actual coordinate value of this initial point and this limit then reports to the police in this way greater than a predefined permissible value, and finishes test.
Wherein, described step c further comprises:
Whether the difference of judging this initial point actual coordinate value and this limit actual coordinate value then reports to the police in this way greater than a predefined permissible value, and finishes test.
Wherein, the coordinate figure of estimating of each test point is that actual abscissa value and actual ordinate value by the initial point integral multiple that adds the equal score value of horizontal ordinate respectively and the integral multiple of the equal score value of ordinate calculate in the described steps d, this integer be 1 to the horizontal straight line the positive integer of positive integer and 1 equally distributed number of checkpoints to vertical straight line of equally distributed number of checkpoints.
Wherein, the coordinate figure of estimating of each test point is that actual abscissa value and actual ordinate value by the limit integral multiple that deducts the equal score value of horizontal ordinate respectively and the integral multiple of the equal score value of ordinate calculate in the described steps d, this integer be 1 to the horizontal straight line the positive integer of positive integer and 1 equally distributed number of checkpoints to vertical straight line of equally distributed number of checkpoints.
Wherein, this method further comprises: according to testing needs to a part of test point execution in step e in the described test point.
Wherein, described warning is that hummer is rung.
Wherein, this method of testing further comprises:
Judge whether to test all test points, then glittering in this way pilot lamp, the prompting test is correct, otherwise returns step e.
As seen, the present invention comes the linearity of test touch screen by the test to the test point on the touch-screen, wherein, described test points selected guarantee touch-screen laterally, vertically and test point formation straight line all arranged on the diagonal, and test point evenly distributes on straight line, by click to the test point on the touch-screen physical location, obtain the actual coordinate value of each test point respectively, with this coordinate figure with estimate coordinate figure and compare, the difference of estimating coordinate figure with it when the actual coordinate value of clicked test point is all in specialized range the time, test procedure passes through, the linearity of touch-screen meets the demands, otherwise when the actual coordinate value of any one test point exceeded allowed band with the difference of estimating coordinate figure, test procedure was reported to the police; Simultaneously, the present invention is before testing each touch-screen, and all the coordinate figure to test point recomputates, and obtains the coordinate figure of estimating of this touch-screen, has reduced to check in batches the test error that is caused.
Description of drawings
Fig. 1 is this schematic flow sheet of inventing whole process.
Fig. 2 is the coordinate diagram of 9 test points.
Fig. 3 is the coordinate diagram of 16 test points.
Embodiment
The present invention utilizes the test point on the test touch screen that the linearity of touch-screen is tested, and before each touch-screen is tested, all estimates the coordinate figure of test point again, makes the accuracy of batch testing be improved.The choosing of test point will guarantee at touch-screen laterally, vertically and all have test point to constitute straight line on the diagonal to reach the purpose of the test touch screen linearity with this; Choosing with the principle of five equilibrium of test point carried out, and it is many more that test point is chosen, and be just accurate more to the test of the touch-screen linearity, and still, test process can be therefore complicated; It is few more that test point is chosen, and test process is just simple more, still inaccurate to the test meeting of the touch-screen linearity, therefore need adopt the test point of right quantity that the linearity of touch-screen is tested according to actual conditions; In addition, consider the touch-screen linearity on the border easier going wrong, can choose more test point, in test process, only test that a part of test point near the touch-screen border, and ignore test to some test points of touch-screen centre position, so both realized accurate test, and also can not make test process too complicated for the touch-screen boundary member linearity.Below in conjunction with accompanying drawing, be example with 9,16,13 test points respectively, describe the present invention.
Embodiment one, is example with 9 test points:
Fig. 2 is a legend of choosing 9 test points, wherein laterally gets 3 straight lines, and 3 test points (3,4,5), (6,7,8), (9,10,11) evenly distribute respectively on it; Vertically get 3 straight lines, 3 test points (3,6,9), (4,7,10), (5,8,11) evenly distribute respectively on it; Diagonal is got 2 straight lines, and 3 test points (3,7,11), (5,7,9) evenly distribute respectively on it.Referring to shown in Figure 1, the test process of this touch-screen is as follows:
Step 11: send minor by hummer, the prompting user begins testing touch screen;
Step 12: the user clicks the initial point 1 of touch-screen, i.e. the point of coordinate figure minimum on the touch-screen physical location, and test procedure obtains the coordinate figure of the initial point 1 of actual click, when the coordinate figure of this initial point 1 is in a predefined allowed band, continue execution in step 13, otherwise, the hummer long time of alarm;
Step 13: the user clicks the limit 2 of touch-screen, it is the point of coordinate figure maximum on the touch-screen physical location, test procedure obtains the coordinate figure of the limit 2 of actual click, and calculate the difference of coordinate figure of the initial point 1 of the coordinate figure of this limit 2 and actual click, when the coordinate figure of this limit 2 and the difference that calculates are all in a predefined allowed band, continue execution in step 14, otherwise, the hummer long time of alarm;
Be equally distributed 3 test points on step 14:X direction and the Y direction, therefore, program is carried out 4 five equilibriums with the difference that obtains in the step 13 on X, Y direction, obtain the equal score value on X, the Y direction; The actual abscissa value of initial point carries out increasing progressively for 3 times successively, and increment value is the equal score value on the directions X, obtains three abscissa value successively; In like manner, the actual ordinate value of initial point carries out increasing progressively for 3 times successively, and increment value is the equal score value on the Y direction, obtains 3 ordinate values successively; These horizontal ordinates are made up 3～11 these 9 coordinate points that obtain as shown in Figure 2, promptly obtain the coordinate figure of estimating of these 9 test points, wherein, calculate the method that the mode of five equilibrium coordinate also can adopt the limit coordinate figure to successively decrease successively;
Embodiment two, are example with 16 test points:
The test process of the test process of 16 test points and 9 test points is similar, and difference is: laterally get 4 straight lines, 4 test points (3,4,5,6), (7,8,9,10), (11,12,13,14), (15,16,17,18) evenly distribute respectively on it; Vertically get 4 straight lines, 4 test points (3,7,11,15), (4,8,12,16), (5,9,13,17), (6,10,14,18) evenly distribute respectively on it; Diagonal is got 2 straight lines, and 4 test points (3,8,13,18), (6,9,12,15) evenly distribute respectively on it.Therefore, in above-mentioned steps 14, difference is carried out 5 five equilibriums on X, Y direction, obtain the equal score value on X, the Y direction, the actual abscissa value of initial point carries out increasing progressively for 4 times successively, and increment value is the equal score value on the directions X, obtains four abscissa value successively; In like manner, the actual ordinate value of initial point carries out increasing progressively for 4 times successively, and increment value is the equal score value on the Y direction, obtains 4 ordinate values successively; These horizontal ordinates are made up 16 coordinate points 3～18 that obtain as shown in Figure 3, promptly obtain the coordinate figure of estimating of 16 test points 3～18.In above-mentioned steps 15, the user clicks these 16 test points 3～18 on the touch-screen physical location in order respectively, and all the other steps are identical with the test process of 9 test points.
Embodiment three, are example with 13 test points:
The test process of the test process of 13 test points and 9 and 16 test points is similar, its difference is: Fig. 4 is the legend of the selected test point of this example, wherein laterally get 7 straight lines, vertically get 7 straight lines, diagonal is got 2 straight lines, and 49 test points altogether evenly distribute on these straight lines.In above-mentioned steps 14, difference is carried out 8 five equilibriums on X, Y direction, obtain the equal score value on X, the Y direction, the actual abscissa value of initial point carries out increasing progressively for 7 times successively, and increment value is the equal score value on the directions X, obtains 7 abscissa value successively; In like manner, the actual ordinate value of initial point carries out increasing progressively for 7 times successively, and increment value is the equal score value on the Y direction, obtains 7 ordinate values successively; These horizontal ordinates are made up the coordinate figure of estimating of 49 test points obtaining as shown in Figure 4.Because this example is paid close attention to the linearity of touch-screen boundary member, simultaneously, also in order to make test process be unlikely to too complicated, therefore in above-mentioned steps 15, only choosing 3～15 these 13 test points shown in Fig. 4 carries out, and ignore test to all the other test points of 36, all the other steps are identical with the test process of 9 test points.
As seen, in above-mentioned three examples, adopt 9 test points to make test process simple relatively, but contrast 16 test points, accuracy of test is reduced, adopt 16 test points, the order of accuarcy of test is higher relatively, therefore but the test process relative complex need be selected the number of test point according to the actual requirement of test accuracy and test process complexity; Adopt the embodiment of 13 test points to realize the linearity of test touch screen boundary member more exactly, this embodiment chooses 49 test points, but in test process, in order to simplify test process, ignored test to some test points, thereby can reach the purpose of the accurate test touch screen border linearity, can make test process be unlikely to very complicated again.Simultaneously, the test points selected of three examples all guarantees all have test point evenly to constitute straight line more than on horizontal, the vertical and diagonal of touch-screen.
In the present invention, user's hit testing point is if the actual coordinate value of this test point is estimated coordinate figure with it difference in predefined allowed band the time, begins next test point is tested, up to testing all test points, test procedure is pointed out the user by warning light; Otherwise the touch-screen linearity is defective, buzzer warning, and this time test process finishes.The present invention has realized the test to the touch-screen linearity; Simultaneously, the present invention all calculated the coordinate figure of estimating of its test point again before each touch-screen of test, make that in batch testing, test result is more accurate; By ignoring test, realized under the prerequisite that does not increase the test process complexity accurate test to the touch screen portion zone linearity to partial test point.
Claims (8)
1, a kind of method of testing of the touch-screen linearity is characterized in that this method may further comprise the steps at least:
A. choose test point, this test points selected guarantees all have test point to constitute straight line on horizontal, the vertical and diagonal of touch-screen, and this test point evenly distributes on this straight line;
B. click the initial point and the limit of touch-screen respectively, obtain the actual coordinate value of this initial point and limit, this initial point is the point of coordinate figure minimum on the touch-screen physical location, and this limit is the point of coordinate figure maximum on the touch-screen physical location;
C. calculate the difference of this initial point actual coordinate value and this limit actual coordinate value, difference is added one divide equally carrying out equally distributed number of checkpoints on the horizontal and vertical straight line on horizontal ordinate and the ordinate respectively, obtain the equal score value of the difference on horizontal ordinate and the ordinate;
D. utilize equal score value of horizontal ordinate and the equal score value of ordinate to calculate the coordinate figure of estimating of each test point;
E. a test point clicking touch-screen obtains the actual coordinate value of this test point, calculate the actual coordinate value and the difference of estimating coordinate figure of this test point, judge that whether this difference is greater than a predefined permissible value, then report to the police in this way, and finish to test, otherwise at next test point repeating step e, wherein, described predefined permissible value is to convert with the area that the contact is clicked to obtain.
2, method of testing according to claim 1 is characterized in that described step b further comprises:
Whether the actual coordinate value of judging the actual coordinate value of this initial point and this limit then reports to the police in this way greater than a predefined permissible value, and finishes test.
3, method of testing according to claim 1 is characterized in that described step c further comprises:
Whether the difference of judging this initial point actual coordinate value and this limit actual coordinate value then reports to the police in this way greater than a predefined permissible value, and finishes test.
4, method of testing according to claim 1, the coordinate figure of estimating that it is characterized in that each test point in the steps d is that actual abscissa value and actual ordinate value by the initial point integral multiple that adds the equal score value of horizontal ordinate respectively and the integral multiple of the equal score value of ordinate calculate, this integer be 1 to the horizontal straight line the positive integer of positive integer and 1 equally distributed number of checkpoints to vertical straight line of equally distributed number of checkpoints.
5, method of testing according to claim 1, the coordinate figure of estimating that it is characterized in that each test point in the steps d is that actual abscissa value and actual ordinate value by the limit integral multiple that deducts the equal score value of horizontal ordinate respectively and the integral multiple of the equal score value of ordinate calculate, this integer be 1 to the horizontal straight line the positive integer of positive integer and 1 equally distributed number of checkpoints to vertical straight line of equally distributed number of checkpoints.
6, method of testing according to claim 1 is characterized in that this method further comprises: according to testing needs to a part of test point execution in step e in the described test point.
7,, it is characterized in that described warning is that hummer is rung according to claim 1,2 or 3 described method of testings.
8, method of testing according to claim 1 is characterized in that further comprising:
F. judge whether to test all test points, then glittering in this way pilot lamp, the prompting test is correct, otherwise returns step e.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02125497 CN1216344C (en) | 2002-08-13 | 2002-08-13 | Testing method of contact screen linerarity |
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|---|---|---|---|
| CN 02125497 CN1216344C (en) | 2002-08-13 | 2002-08-13 | Testing method of contact screen linerarity |
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| CN1475963A CN1475963A (en) | 2004-02-18 |
| CN1216344C true CN1216344C (en) | 2005-08-24 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4148187B2 (en) * | 2004-06-03 | 2008-09-10 | ソニー株式会社 | Portable electronic device, input operation control method and program thereof |
| CN101145122B (en) * | 2006-09-15 | 2010-11-10 | 鸿富锦精密工业（深圳）有限公司 | Touch panel test machine platform |
| 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 |
| CN103383418A (en) * | 2012-05-03 | 2013-11-06 | 杨志沅 | Click testing method and device thereof |
| CN104238575A (en) * | 2014-09-15 | 2014-12-24 | 昆山精讯电子科技有限公司 | Testing system and method for detecting touch screen |
| CN105759151B (en) * | 2016-04-12 | 2018-07-31 | 青岛歌尔声学科技有限公司 | A kind of detection method and device of the touch screen linearity |
| CN106066237A (en) * | 2016-05-25 | 2016-11-02 | 广州市祈丰机电科技有限公司 | Touch screen maintenance craft flow process |
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