Detection Method and Device for Touch Screen Panel

Abstract

The present invention discloses a detection method and device for a touch screen panel. The method includes: obtaining capacitance matrix data of the touch screen panel; comparing whether each capacitance value in the capacitance matrix data is all within a first preset range; if not, marking the capacitors corresponding to the capacitance values not within the first preset range as abnormal capacitors; determining whether the number of the abnormal capacitors meets a preset quantity condition; if not, determining the touch screen panel as a defective product. The present invention can screen from at least two dimensions of the magnitude of the capacitance value and the quantity of the abnormal capacitors. By using this method, the probability of overjudgment can be reduced, the problem that a good touch screen panel is determined as a defective product can be avoided, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of touch screen panels, and in particular, to a detection method and device for a touch screen panel. Background Art

[0002] When detecting a touch screen panel, the capacitance values of each part of the touch screen panel can be judged. For example, taking a certain reference value and floating up and down by a certain percentage for judgment. When the actual capacitance value exceeds this percentage, it is judged that the size of the capacitance value is abnormal, and the corresponding screen will be judged as a defective product. However, such a judgment method is prone to problems. Specifically, if the specific percentage is set too small, more touch screen panels will be judged as defective products, resulting in over-judgment problems. On the contrary, there will be problems of missed judgment. In order to prevent missed judgment, there will be over-judgment problems, and the panels that could have been used are judged as defective products, increasing the production cost of the enterprise. Summary of the Invention

[0003] To solve the problem of over-judgment in the judgment of good products of touch screen panels in the prior art, the purpose of the present invention is to provide a detection method and device for a touch screen panel that can reasonably judge whether it is a defective product.

[0004] To achieve the above invention purpose, an embodiment of the present invention provides a detection method for a touch screen panel, including the following steps:

[0005] Obtain the capacitance matrix data of the touch screen panel;

[0006] Compare whether each capacitance value in the capacitance matrix data is all within a first preset range;

[0007] If not, then perform the following steps:

[0008] Mark the capacitances corresponding to the capacitance values not within the first preset range as abnormal capacitances;

[0009] Judge whether the number of the abnormal capacitances meets a preset number condition;

[0010] If not, then judge the touch screen panel as a defective product.

[0011] As a further improvement of the present invention, among them, the abnormal capacitance includes an upper limit abnormal capacitance exceeding the upper limit of the first preset range, and the preset number condition includes an upper limit number condition;

[0012] The step "judge whether the number of the abnormal capacitances meets a preset number condition" includes:

[0013] Judge whether the number of the upper limit abnormal capacitances meets the upper limit number condition.

[0014] As a further improvement of the present invention, the upper limit quantity condition includes upper limit row continuous values, upper limit row discontinuous values, upper limit column continuous values, and upper limit column discontinuous values;

[0015] It further includes the steps of:

[0016] Determine whether the quantity of the upper limit abnormal capacitors is less than the upper limit row continuous values, upper limit row discontinuous values, upper limit column continuous values, and upper limit column discontinuous values;

[0017] If not, determine the touch screen panel as a defective product.

[0018] As a further improvement of the present invention, wherein the abnormal capacitors include lower limit abnormal capacitors lower than the lower limit of the first preset range, and the preset quantity condition includes a lower limit quantity condition;

[0019] The step of "determine whether the quantity of the abnormal capacitors meets the preset quantity condition" includes:

[0020] Determine whether the quantity of the lower limit abnormal capacitors meets the lower limit quantity condition.

[0021] As a further improvement of the present invention, the lower limit quantity condition includes lower limit row continuous values, lower limit row discontinuous values, lower limit column continuous values, and lower limit column discontinuous values;

[0022] It further includes the steps of:

[0023] Determine whether the quantity of the lower limit abnormal capacitors is less than the lower limit row continuous values, lower limit row discontinuous values, lower limit column continuous values, and lower limit column discontinuous values;

[0024] If not, determine the touch screen panel as a defective product.

[0025] As a further improvement of the present invention, the step of "acquire the capacitance matrix data of the touch screen panel" includes:

[0026] Acquire a capacitance acquisition data group;

[0027] Acquire the number of rows and columns of the capacitance of the touch screen panel;

[0028] According to the number of rows and the number of columns, adjust the capacitance acquisition data group into the capacitance matrix data.

[0029] As a further improvement of the present invention, the step of "compare whether each capacitance value in the capacitance matrix data is all within the first preset range" includes:

[0030] Compare whether each capacitance value in the capacitance matrix data is all within the first preset range;

[0031] If so, perform a mixed calculation judgment, and the mixed calculation judgment includes the steps of:

[0032] Calculate the difference between the capacitance values of adjacent rows in the capacitance matrix data to generate row difference matrix data, calculate the sum of the differences in each column of the row difference matrix data to generate column sum-difference matrix data, and / or,

[0033] Calculate the difference between the capacitance values of adjacent columns in the capacitance matrix data to generate column difference matrix data, calculate the sum of the differences in each row of the column difference matrix data to generate row sum-difference matrix data;

[0034] Judge whether the touch screen panel is a good product according to the row difference matrix data and the column sum-difference matrix data, and / or the column difference matrix data and the row sum-difference matrix data.

[0035] As a further improvement of the present invention, the mixed calculation judgment further includes the steps of:

[0036] Compare whether all the data in the row difference matrix data are all within the preset row difference matrix range, and / or,

[0037] Compare whether all the data in the column difference matrix data are all within the preset column difference matrix range, and / or,

[0038] Compare whether all the data in the column sum-difference matrix data are all within the preset column sum-difference matrix range, and / or,

[0039] Compare whether all the data in the row sum-difference matrix data are all within the preset row sum-difference matrix range;

[0040] If so, judge the touch screen panel as a good product;

[0041] If not, judge the touch screen panel as a defective product.

[0042] As a further improvement of the present invention, the step of "judging whether the number of abnormal capacitors meets the preset quantity condition" includes:

[0043] Judge whether the number of abnormal capacitors meets the preset quantity condition;

[0044] If so, perform the following steps:

[0045] Compare whether each capacitance value of the abnormal capacitors is within a second preset range, wherein the lower limit of the second preset range is lower than the lower limit of the first preset range, and / or the upper limit of the second preset range is higher than the upper limit of the first preset range;

[0046] If at least one capacitance value is not within the second preset range, the touch screen panel is determined to be a defective product.

[0047] As a further improvement of the present invention, the step of "comparing whether each capacitance value of the abnormal capacitance is within the second preset range" includes:

[0048] Comparing whether each capacitance value of the abnormal capacitance is within the second preset range;

[0049] If all capacitance values are within the second preset range, perform the hybrid calculation judgment.

[0050] As a further improvement of the present invention, the step of "judging whether the number of the abnormal capacitances meets the preset number condition" includes:

[0051] Judging whether the number of the abnormal capacitances meets the preset number condition;

[0052] If so, perform the hybrid calculation judgment.

[0053] To achieve one of the above-mentioned invention purposes, an embodiment of the present invention provides a detection device for a touch screen panel, including:

[0054] An acquisition module, configured to acquire capacitance matrix data of the touch screen panel;

[0055] A first judgment module, configured to compare whether each capacitance value in the capacitance matrix data is all within a first preset range. If not, mark the capacitance corresponding to the capacitance value not within the first preset range as an abnormal capacitance;

[0056] A second judgment module, configured to judge whether the number of the abnormal capacitances meets a preset number condition. If not, determine the touch screen panel as a defective product.

[0057] To achieve one of the above-mentioned invention purposes, an embodiment of the present invention provides an electronic device, including:

[0058] A storage module, storing a computer program;

[0059] A processing module, which can implement the steps in the above-mentioned detection method of the touch screen panel when executing the computer program.

[0060] To achieve one of the above-mentioned invention purposes, an embodiment of the present invention provides a readable storage medium, which stores a computer program, and the steps in the above-mentioned detection method of the touch screen panel can be implemented when the computer program is executed by a processing module.

[0061] Compared with the prior art, the present invention has the following beneficial effects: By using the detection method of the touch screen panel, screening can be performed at least from two dimensions of the magnitude of the capacitance value and the amount of abnormal capacitance, which can reduce the probability of over-judgment, avoid the problem that a good touch screen panel is judged as a defective product, reduce the production cost, and improve the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 is a flowchart of one embodiment of the detection method of the touch screen panel of the present invention;

[0063] Figure 2 is a flowchart of another embodiment of the detection method of the touch screen panel of the present invention;

[0064] Figure 3 is a schematic diagram of one embodiment of the capacitance matrix data after marking abnormal capacitance in one embodiment of the present invention;

[0065] Figure 4 is a schematic diagram of another embodiment of the capacitance matrix data after marking abnormal capacitance in one embodiment of the present invention;

[0066] Figure 5 is a schematic diagram of another embodiment of the capacitance matrix data after marking abnormal capacitance in one embodiment of the present invention;

[0067] Figure 6 is a data table of the capacitance matrix data in one embodiment of the present invention;

[0068] Figure 7 is a data table of the row difference matrix data in one embodiment of the present invention;

[0069] Figure 8 is a data table of the column difference matrix data in one embodiment of the present invention;

[0070] Figure 9 is a data table of the column sum-difference matrix data in one embodiment of the present invention;

[0071] Figure 10 is a data table of the row sum-difference matrix data in one embodiment of the present invention;

[0072] Figure 11 is a schematic diagram of the modules of the detection device of the touch screen panel in one embodiment of the present invention;

[0073] Figure 12 is a structural block diagram of the detection device of the touch screen panel in one embodiment of the present invention;

[0074] Among them, 100, detection device; 10, capacitance detection module; 20, screen information acquisition module; 30, processing module; 40, storage module; 50, communication bus. Detailed Implementation Modes

[0075] The present invention will be described in detail below in conjunction with the specific implementation modes shown in the accompanying drawings. However, these implementation modes do not limit the present invention, and any structural, method, or functional transformation made by those of ordinary skill in the art based on these implementation modes is included within the protection scope of the present invention.

[0076] An embodiment of the present invention provides a detection method, device, and storage medium for a touch screen panel. The detection method and device can avoid the problem of a good touch screen panel being judged as a defective product, reduce the production cost, and improve the production efficiency.

[0077] The detection method of the touch screen panel in this embodiment is based on judging whether the capacitance value of each capacitor on the touch screen panel meets the requirements. The capacitance value can be detected by the capacitance detection module 10, and then the detected capacitance value data is screened and analyzed to form this method.

[0078] Figure 1 and Figure 2 are respectively the flowcharts of the detection methods for the touch screen panel in two implementation modes of this application. Among them Figure 2 is a more specific implementation mode of the entire process. Although this application provides method operation steps as described in the following implementation modes or flowcharts, in steps where there is no necessary causal relationship logically in the method based on routine or non-creative labor, the execution order of these steps is not limited to the execution order provided in the implementation modes of this application.

[0079] The specific detection method for the touch screen panel includes the following steps:

[0080] Step S1: Obtain the capacitance matrix data of the touch screen panel;

[0081] Specifically, this step includes:

[0082] Obtain a capacitance acquisition data group, where the capacitance acquisition data group is data of multiple detected capacitance values;

[0083] Obtain the number of rows and columns of the capacitors on the touch screen panel, and the number of rows and columns corresponds to the actual layout on the panel;

[0084] According to the number of rows and the number of columns, adjust the capacitance acquisition data group to the capacitance matrix data. In this way, the capacitance acquisition data group is changed into matrix data with rows and columns, and the matrix data can be referred to Figure 6 as shown.

[0085] Step S2:

[0086] Compare whether each capacitance value in the capacitance matrix data is all within a first preset range;

[0087] The first preset range can be a matrix corresponding to the size of the capacitance matrix data. For example, both are matrices of 10×13. Compare the 10×13 matrix data of the capacitance matrix data with the values of a 10×13 first preset range matrix. The first preset range can also all be a single value. For example, compare all the values in the capacitance matrix data with the same value.

[0088] For example, first determine a reference matrix of 10×13. The first preset range is that each value in the 10×13 reference matrix fluctuates by 20%. For example, if a certain value is 100, the floating range within 80 - 120 is all compliant. Compare each value in the capacitance matrix data with the range where each reference value fluctuates by 20%. If it is within the range, it meets the requirements; if not, it does not meet the requirements.

[0089] Step S3:

[0090] When not all capacitance values in the capacitance matrix data are within the first preset range, step S3 can be performed, specifically as follows:

[0091] Mark the capacitances corresponding to the capacitance values not within the first preset range as abnormal capacitances;

[0092] Judge whether the number of the abnormal capacitances meets a preset quantity condition;

[0093] If not, judge the touch screen panel as a defective product.

[0094] Specifically, the abnormal capacitances include upper - limit abnormal capacitances exceeding the upper limit of the first preset range, and the preset quantity condition includes an upper - limit quantity condition;

[0095] The upper - limit quantity condition includes upper - limit row continuous values, upper - limit row non - continuous values, upper - limit column continuous values, and upper - limit column non - continuous values;

[0096] Step S3 includes:

[0097] Step S311:

[0098] Judge whether the number of the upper - limit abnormal capacitances meets the upper - limit quantity condition.

[0099] Step S312:

[0100] Judge whether the number of the upper - limit abnormal capacitances is less than the upper - limit row continuous value, the upper - limit row non - continuous value, the upper - limit column continuous value, and the upper - limit column non - continuous value;

[0101] If not, determine the touch screen panel as a defective product.

[0102] Further, the abnormal capacitance includes a lower limit abnormal capacitance lower than the lower limit of the first preset range, and the preset quantity condition includes a lower limit quantity condition;

[0103] The lower limit quantity condition includes lower limit row continuous values, lower limit row discontinuous values, lower limit column continuous values, and lower limit column discontinuous values;

[0104] Step S3 further includes:

[0105] Step S321:

[0106] Determine whether the quantity of the lower limit abnormal capacitance meets the lower limit quantity condition.

[0107] Step S322:

[0108] Determine whether the quantity of the lower limit abnormal capacitance is less than the lower limit row continuous value, the lower limit row discontinuous value, the lower limit column continuous value, and the lower limit column discontinuous value;

[0109] If not, determine the touch screen panel as a defective product.

[0110] Taking Figure 3 、 4 、5 as an example, the above step S3 is described in more detail.

[0111] Taking the upper limit row continuous value as 2, the upper limit row discontinuous value as 2, the upper limit column continuous value as 5, and the upper limit column discontinuous value as 5, Figure 3 、 4 、5, where OK represents a normal capacitance with a capacitance value within the first preset range, and NG represents an upper limit abnormal capacitance all exceeding the upper limit of the first preset range, as an example:

[0112] Figure 3 The row continuous value in

[0113] Figure 4 is 1, the column continuous value is 4, there are no abnormal capacitances for row discontinuity and column discontinuity, and the upper limit row continuous value is 2 and the upper limit column continuous value is 5, all within the requirements. Therefore, this screen meets the requirements in the judgment of step S3;

[0114] Figure 5 The row continuous value in

[0114] Figure 5 is 2, the column continuous value is 2, there are no abnormal capacitances for row discontinuity and column discontinuity, and the upper limit row continuous value is 2 and the upper limit column continuous value is 5. Therefore, the row continuous value is not less than the upper limit row continuous value. Therefore, this screen is directly determined as a defective product in step S3;The row continuous value in it is 2, the column continuous value is 4, and there are no abnormal capacitors with discontinuous rows and columns. The upper row continuous value is 2, and the upper limit column continuous value is 5. The row continuous value is not less than the upper limit row continuous value. Therefore, this screen is directly judged as a defective product in step S3.

[0115] In addition, taking the upper limit row continuous value of 3, the upper limit row discontinuous value of 3, the upper limit column continuous value of 3, and the upper limit column discontinuous value of 3 as an example for explanation:

[0116] Figure 3 The row continuous value in it is 1, the column continuous value is 4, and there are no abnormal capacitors with discontinuous rows and columns. The upper limit row continuous value is 3, and the upper limit column continuous value is 3. The row continuous value is greater than the upper limit row continuous value and is not within the requirements. Therefore, this screen is directly judged as a defective product in step S3;

[0117] Figure 4 The row continuous value in it is 2, the column continuous value is 2, and there are no abnormal capacitors with discontinuous rows and columns. The upper limit row continuous value is 3, and the upper limit column continuous value is 3, both of which are within the requirements. Therefore, this screen meets the requirements in the judgment of step S3;

[0118] Figure 5 The row continuous value in it is 2, the column continuous value is 4, and there are no abnormal capacitors with discontinuous rows and columns. The upper limit row continuous value is 3, and the upper limit column continuous value is 3. The column continuous value is not less than the upper limit column continuous value. Therefore, this screen is directly judged as a defective product in step S3.

[0119] Similarly, when Figure 3 、 4 5, part of the NG is the upper limit abnormal capacitor exceeding the upper limit of the first preset range, part is the lower limit abnormal capacitor less than the lower limit of the first preset range, and when all are the lower limit abnormal capacitors less than the lower limit of the first preset range, the above method can also be used for judgment.

[0120] Through the above judgment, find the single or multiple rectangles composed of abnormal capacitors in the screen. Some abnormal capacitors are located in the positions of the camera, the area of the light sensor, or some specific areas, or areas that can be repaired. The existence of these rectangular areas does not mean that the screen is directly a defective product. Therefore, by adjusting the different parameters of the upper limit row continuous value, the upper limit row discontinuous value, the upper limit column continuous value, and the upper limit column discontinuous value, and / or the lower limit row continuous value, the lower limit row discontinuous value, the lower limit column continuous value, and the lower limit column discontinuous value, the requirements for screening different rectangle sizes and quantities can be met. When the size and quantity exceed the requirements of these rectangles, it is then determined as a defective product.

[0121] Step S4:

[0122] In step S2, when each capacitance value in the capacitance matrix data is all within a first preset range, step S4 can be performed:

[0123] Perform a hybrid calculation determination, and the hybrid calculation determination includes steps:

[0124] Calculate the difference between the capacitance values of adjacent rows in the capacitance matrix data to generate row difference matrix data, calculate the sum of the differences in each column in the row difference matrix data to generate column sum-difference matrix data, and / or,

[0125] Calculate the difference between the capacitance values of adjacent columns in the capacitance matrix data to generate column difference matrix data, calculate the sum of the differences in each row in the column difference matrix data to generate row sum-difference matrix data;

[0126] Judge whether the touch screen panel is a good product according to the row difference matrix data and the column sum-difference matrix data, and / or the column difference matrix data and the row sum-difference matrix data.

[0127] Specifically, taking the Figures 6 - 10 table in as an example, step S4 above will be described in more detail:

[0128] Figure 6 is the data table of the capacitance matrix data of an embodiment of the present invention, and this data table lists the magnitudes of all capacitance values of the capacitance matrix data, Figure 6 is a 10×13 matrix;

[0129] Figure 7 is the data table of the row difference matrix data of an embodiment of the present invention. After subtracting adjacent rows in Figure 6 and taking the absolute value, Figure 7 is obtained, Figure 7 is a 9×13 matrix;

[0130] Figure 8 is the data table of the column difference matrix data of an embodiment of the present invention. After subtracting adjacent columns in Figure 6 and taking the absolute value, Figure 8 is obtained, Figure 8 is a 10×12 matrix;

[0131] Figure 9 is the data table of the column sum-difference matrix data of an embodiment of the present invention. After adding up all columns in Figure 7 to obtain the sum, Figure 9 is obtained, Figure 9 is a 9×1 matrix;

[0132] Figure 10 is the data table of the row sum-difference matrix data of an embodiment of the present invention. After adding up all rows in Figure 8 to obtain the sum, Figure 10 is obtained,Figure 10 is a 1×12 matrix.

[0133] Further, step S4 further includes the steps of:

[0134] comparing whether all the data in the row difference matrix data are all within a preset row difference matrix range, and / or,

[0135] comparing whether all the data in the column difference matrix data are all within a preset column difference matrix range, and / or,

[0136] comparing whether all the data in the column sum-difference matrix data are all within a preset column sum-difference matrix range, and / or,

[0137] comparing whether all the data in the row sum-difference matrix data are all within a preset row sum-difference matrix range;

[0138] If so, determine the touch screen panel as a good product;

[0139] If not, determine the touch screen panel as a defective product.

[0140] The preset row difference matrix range, preset column difference matrix range, preset column sum-difference matrix range, and preset row sum-difference matrix range can all be a matrix of corresponding size, and the numerical values at each position in the matrix are compared one by one. For example, the 9×13 matrix data of the row difference matrix is compared with the numerical values of a 9×13 preset row difference matrix. The preset row difference matrix range, preset column difference matrix range, preset column sum-difference matrix range, and preset row sum-difference matrix range can also all be a numerical value. For example, all the values in the row difference matrix data are compared with the same numerical value.

[0141] The above comparison can compare only any one item, or all of them. The effect is better when all are compared. The significance of the comparison lies in:

[0142] There is a problem in the test that the capacitance value of a certain measured point is close to the upper limit of the normal value, and the capacitance values of adjacent other measured points are close to the lower limit of the normal value. In actual production, this phenomenon generally occurs in whole rows or whole columns. Then, this situation can pass through the previous detection method, but due to the too large difference between the capacitance values of two adjacent points, in fact, such a screen is unqualified, that is, in the existing judgment, there is a problem of missed judgment, making defective products become good products.

[0143] Therefore, by comparing the row difference matrix data, column difference matrix data, row sum-difference matrix data, and column sum-difference matrix data, relationships can be established between the capacitances of adjacent rows, adjacent columns, all rows, and all columns. For example Figure 9In [the above situation], if all values in the column sum and difference matrix data are required to be below 2000, then it can be determined that the touch screen panel is a defective product.

[0144] The judgment in step S4 takes into account the uniformity of the capacitance value differences between adjacent points of the touch screen panel and the uniformity of the capacitance value differences of the entire touch screen panel, so it avoids the problems of missed detection and missed judgment.

[0145] Step S5:

[0146] Based on step S3, when the number of the abnormal capacitances meets the preset quantity condition, then step S5 is performed. One implementation manner of step S5 is as follows:

[0147] Compare whether each capacitance value of the abnormal capacitances is within a second preset range, where the lower limit of the second preset range is lower than the lower limit of the first preset range, and / or the upper limit of the second preset range is higher than the upper limit of the first preset range;

[0148] If at least one capacitance value is not within the second preset range, then determine the touch screen panel as a defective product.

[0149] For example, in step S2, the first preset range is, for example, plus or minus 20%, and the reference value is 100. At this time, the capacitance values within the range of 80 to 120 all meet the requirements, while the second preset range is, for example, plus or minus 40%. At this time, the capacitance values within the range of 60 to 140 all meet the requirements. It is equivalent to relaxing the requirements for the point capacitance values on the basis that the quantity judgment meets the requirements. If it still cannot be satisfied under the relaxed conditions, then determine the touch screen panel as a defective product.

[0150] This avoids the problem of over-inspection of a part of the screen. At the same time, the premise of relaxing from the first preset range to the second preset range is that the quantity meets the requirements, so it also avoids the problems of missed detection and misjudging defective products as non-defective products.

[0151] Further, the step of "comparing whether each capacitance value of the abnormal capacitances is within the second preset range" includes:

[0152] Compare whether each capacitance value of the abnormal capacitances is within the second preset range;

[0153] If all capacitance values are within the second preset range, then perform the hybrid calculation judgment, that is, perform the judgment in step S4.

[0154] At this time, some capacitances meet the requirements of the second preset range. Since the uniformity of adjacent capacitances and the overall uniformity are not determined, screening is performed again through step S4 to make a further judgment on whether it is a non-defective product.

[0155] In other embodiments of step S5, another implementation of step S5 is as follows:

[0156] Perform the hybrid calculation judgment, that is, directly perform the judgment of step S4.

[0157] If the capacitance values of some screens may be 0 for both a row and a column, even if the judgment within the second preset range is still not passed at this time, it may be normal for the capacitance values of that row and that column to be 0. For example, the capacitance at the position of the camera or the light sensor may be very small or even 0. Therefore, at this time, the judgment within the second preset range is not performed, and the judgment of step S4 is directly performed.

[0158] Compared with the prior art, this embodiment has the following beneficial effects:

[0159] By using the detection method of this touch screen panel, the probability of over-judgment can be reduced. Screening is performed at least from two dimensions: the magnitude of the capacitance value and the amount of abnormal capacitance, avoiding the problem of good touch screen panels being judged as defective products, reducing the production cost, and improving the production efficiency.

[0160] In one embodiment, as Figure 11 shown, it is a module schematic diagram of a touch screen panel detection device 100 provided by an embodiment of the present invention. The touch screen panel detection device 100 includes:

[0161] An acquisition module, configured to acquire the capacitance matrix data of the touch screen panel;

[0162] A first judgment module, configured to compare whether each capacitance value in the capacitance matrix data is all within a first preset range. If not, mark the capacitance corresponding to the capacitance value not within the first preset range as an abnormal capacitance;

[0163] A second judgment module, configured to judge whether the number of abnormal capacitances meets a preset quantity condition. If not, judge the touch screen panel as a defective product.

[0164] In one embodiment, the second judgment module is further configured to judge whether the number of upper-limit abnormal capacitances meets an upper-limit quantity condition.

[0165] In one embodiment, the second judgment module is further configured to judge whether the number of upper-limit abnormal capacitances is less than the upper-limit row continuous value, the upper-limit row non-continuous value, the upper-limit column continuous value, and the upper-limit column non-continuous value;

[0166] If not, judge the touch screen panel as a defective product.

[0167] In one embodiment, the second judgment module is further configured to judge whether the number of lower-limit abnormal capacitances meets a lower-limit quantity condition.

[0168] In one embodiment, the second determination module is further configured to determine whether the number of abnormal capacitors below the lower limit is less than the lower limit row continuous value, the lower limit row discontinuous value, the lower limit column continuous value, and the lower limit column discontinuous value;

[0169] If not, the touch screen panel is determined to be a defective product.

[0170] In one embodiment, the detection device 100 of the touch screen panel further includes a processing module 30. The acquisition module includes a capacitance detection module 10 and a screen information acquisition module 20. The capacitance detection module 10 is configured to acquire a capacitance acquisition data set;

[0171] The screen information acquisition module 20 acquires the number of rows and columns of the capacitance of the touch screen panel;

[0172] The processing module 30 adjusts the capacitance acquisition data set into the capacitance matrix data according to the number of rows and the number of columns.

[0173] In one embodiment, the processing module 30 can also perform a hybrid calculation determination, and the hybrid calculation determination includes:

[0174] Calculating the difference between the capacitance values of adjacent two rows in the capacitance matrix data to generate row difference matrix data, calculating the sum of the differences of each column in the row difference matrix data to generate column sum-difference matrix data, and / or,

[0175] Calculating the difference between the capacitance values of adjacent two columns in the capacitance matrix data to generate column difference matrix data, calculating the sum of the differences of each row in the column difference matrix data to generate row sum-difference matrix data;

[0176] The detection device 100 of the touch screen panel further includes a third determination module, and the third determination module is configured to determine whether the touch screen panel is a good product according to the row difference matrix data and the column sum-difference matrix data, and / or the column difference matrix data and the row sum-difference matrix data.

[0177] In one embodiment, the third determination module is further configured to:

[0178] Compare whether all the data in the row difference matrix data are all within a preset row difference matrix range, and / or,

[0179] Compare whether all the data in the column difference matrix data are all within a preset column difference matrix range, and / or,

[0180] Compare whether all the data in the column sum-difference matrix data are all within a preset column sum-difference matrix range, and / or,

[0181] Compare whether all the data in the row sum-difference matrix data are all within a preset row sum-difference matrix range;

[0182] If so, the touch screen panel is judged as a good product;

[0183] If not, the touch screen panel is judged as a defective product.

[0184] In one embodiment, the detection device 100 of the touch screen panel further includes a fourth judgment module, and the fourth judgment module compares whether each capacitance value of the abnormal capacitance is within a second preset range, wherein the lower limit of the second preset range is lower than the lower limit of the first preset range, and / or the upper limit of the second preset range is higher than the upper limit of the first preset range;

[0185] If at least one capacitance value is not within the second preset range, the touch screen panel is judged as a defective product.

[0186] In one embodiment, the fourth judgment module is further configured to transfer it to the processing module 30 for the hybrid calculation judgment when all capacitance values are within the second preset range.

[0187] In one embodiment, the third judgment module is further configured to transfer it to the processing module 30 for the hybrid calculation judgment when the number of the abnormal capacitances meets a preset number condition.

[0188] The detection device 100 of the touch screen panel according to the present invention can reduce the probability of overjudgment, and screen at least from two dimensions of the magnitude of the capacitance value and the amount of the abnormal capacitance, avoid the problem that a good touch screen panel is judged as a defective product, reduce the production cost, and improve the production efficiency.

[0189] The detection device 100 of the touch screen panel may further include computing devices such as a computer, a notebook, a palm computer, and a cloud server. Those skilled in the art can understand that the schematic diagram is only an example of the detection device 100 of the touch screen panel, and does not constitute a limitation on the terminal device of the detection device 100 of the touch screen panel. It may include more or fewer components than those shown in the figure, or combine some components, or different components. For example, the detection device 100 of the touch screen panel may further include input / output devices, network access devices, buses, etc.

[0190] It should be noted that for the details not disclosed in the detection device 100 of the touch screen panel in the embodiments of the present invention, please refer to the details disclosed in the detection method of the touch screen panel in the embodiments of the present invention.

[0191] In addition to the above modules, the detection device 100 of the touch screen panel further includes a processing module 30, a storage module 40, and a computer program stored in the storage module 40 and executable on the processing module 30, such as the program of the above-mentioned detection method of the touch screen panel. When the processing module 30 executes the computer program, the steps in the embodiments of the above-mentioned detection methods of each touch screen panel are implemented, such as Figure 1 and Figure 2 the steps shown.

[0192] The capacitance detection module 10 acquires a capacitance acquisition data set, and the screen information acquisition module 20 acquires relevant parameters of the touch screen panel, such as acquiring the number of rows M and the number of columns N of the capacitance of the touch screen panel. The processing module 30 adjusts the capacitance acquisition data set into the capacitance matrix data of M*N, and then uses the above-mentioned judgment method to perform operations in the processing module 30 and compare with each preset range value in the storage module 40, so as to judge the quality of the touch screen panel.

[0193] As Figure 12 shown, the detection device 100 of the touch screen panel may further include a communication bus 50. The communication bus 50 is used to establish a connection between the capacitance detection module 10, the screen information acquisition module 20, the processing module 30 and the storage module 40. The communication bus 50 may include a path to transmit information between the capacitance detection module 10, the screen information acquisition module 20, the processing module 30 and the storage module 40.

[0194] In addition, the present invention also proposes an electronic device, which includes a storage module 40 and a processing module 30. When the processing module 30 executes the computer program, the steps in the above-mentioned detection method of the touch screen panel can be implemented, that is, the steps in any one of the technical solutions in the above-mentioned detection method of the touch screen panel can be implemented.

[0195] This electronic device can be a part integrated in the detection device 100 of the touch screen panel, or a local terminal device, or a part of a cloud server.

[0196] The processing module 30 may be a Central Processing Unit (CPU), or may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The processing module 30 is the control center of the detection device 100 of the touch screen panel, and connects various parts of the detection device 100 of the entire touch screen panel through various interfaces and lines.

[0197] The storage module 40 can be used to store the computer program and / or module. The processing module 30 realizes various functions of the detection device 100 of the touch screen panel by running or executing the computer program and / or module stored in the storage module 40, and calling the data stored in the storage module 40. The memory may mainly include a program storage area and a data storage area. Among them, the program storage area can store an operating system, application programs required for at least one function (such as a sound playback function, an image playback function, etc.); the data storage area can store data created according to the use of the mobile phone, such as audio data, phone book, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a Flash Card, at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0198] Exemplarily, the computer program may be divided into one or more modules / units. The one or more modules / units are stored in the storage module 40 and executed by the processing module 30 to complete the present invention. The one or more modules / units may be a series of computer program instruction segments capable of completing specific functions, and the instruction segments are used to describe the execution process of the computer program in the detection method of the touch screen panel.

[0199] Further, an embodiment of the present invention provides a readable storage medium storing a computer program, which, when executed by the processing module 30, can implement the steps in the above-mentioned detection method of the touch screen panel, that is, implement the steps in any one of the technical solutions in the above-mentioned detection method of the touch screen panel.

[0200] If the modules integrated in the detection device 100 of the touch screen panel are implemented in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on such an understanding, to implement all or part of the processes in the above-mentioned embodiment methods of the present invention, it can also be completed by a computer program instructing relevant hardware. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps in the above-mentioned various method embodiments can be implemented.

[0201] Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file or some intermediate form, etc. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal, and software distribution medium, etc. It should be noted that the content included in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electrical carrier signals and telecommunication signals.

[0202] It should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0203] The series of detailed descriptions listed above are only specific descriptions of the feasible implementation manners of the present invention, and they are not used to limit the protection scope of the present invention. Any equivalent implementation manners or changes made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A detection method for a touch screen panel, characterized in that, It includes the following steps: Obtain the capacitance matrix data of the touch screen panel; Compare whether each capacitance value in the capacitance matrix data is all within a first preset range; If not, then perform the following steps: Mark the capacitors corresponding to the capacitance values not within the first preset range as abnormal capacitors; Judge whether the number of the abnormal capacitors meets a preset number condition; If so, compare whether each capacitance value of the abnormal capacitors is within a second preset range, wherein the lower limit of the second preset range is lower than the lower limit of the first preset range, and / or the upper limit of the second preset range is higher than the upper limit of the first preset range. If at least one capacitance value is not within the second preset range, then judge the touch screen panel as a defective product; If not, then judge the touch screen panel as a defective product.

2. The detection method according to claim 1, wherein Wherein, The abnormal capacitors include upper limit abnormal capacitors exceeding the upper limit of the first preset range, and the preset number condition includes an upper limit number condition; The step of "judging whether the number of the abnormal capacitors meets a preset number condition" includes: Judge whether the number of the upper limit abnormal capacitors meets the upper limit number condition.

3. The detection method according to claim 2, characterized in that, The upper limit number condition includes upper limit row continuous values, upper limit row non - continuous values, upper limit column continuous values, and upper limit column non - continuous values; It further includes the step of: Judge whether the number of the upper limit abnormal capacitors is less than the upper limit row continuous values, upper limit row non - continuous values, upper limit column continuous values, and upper limit column non - continuous values; If not, then judge the touch screen panel as a defective product.

4. The detection method according to claim 1, wherein Wherein, The abnormal capacitors include lower limit abnormal capacitors lower than the lower limit of the first preset range, and the preset number condition includes a lower limit number condition; The step of "judging whether the number of the abnormal capacitors meets a preset number condition" includes: Judge whether the number of the lower limit abnormal capacitors meets the lower limit number condition.

5. The detection method according to claim 4, wherein, The lower limit number condition includes lower limit row continuous values, lower limit row non - continuous values, lower limit column continuous values, and lower limit column non - continuous values; It further includes the step of: Judge whether the number of the lower limit abnormal capacitors is less than the lower limit row continuous values, lower limit row non - continuous values, lower limit column continuous values, and lower limit column non - continuous values; If not, then judge the touch screen panel as a defective product.

6. The detection method according to claim 1, wherein The step of "obtaining the capacitance matrix data of the touch screen panel" includes: Obtain a capacitance acquisition data group; Obtain the number of rows and columns of the capacitors of the touch screen panel; According to the number of rows and the number of columns, adjust the capacitance acquisition data group to the capacitance matrix data.

7. The detection method according to claim 1, wherein The step of "comparing whether each capacitance value in the capacitance matrix data is all within a first preset range" includes: Compare whether each capacitance value in the capacitance matrix data is all within a first preset range; If so, then perform a mixed calculation judgment, and the mixed calculation judgment includes the steps of: Calculate the difference between the capacitance values of adjacent two rows in the capacitance matrix data to generate row difference matrix data, calculate the sum of the differences of each column in the row difference matrix data to generate column sum - difference matrix data, and / or Calculate the difference between the capacitance values of adjacent two columns in the capacitance matrix data to generate column difference matrix data, calculate the sum of the differences of each row in the column difference matrix data to generate row sum - difference matrix data; Determine whether the touch screen panel is a good product according to the row difference matrix data and the column sum difference matrix data, and / or the column difference matrix data and the row sum difference matrix data.

8. The detection method according to claim 7, wherein The hybrid calculation and determination further includes the steps of: Comparing whether all the data in the row difference matrix data are all within a preset row difference matrix range, and / or, Comparing whether all the data in the column difference matrix data are all within a preset column difference matrix range, and / or, Comparing whether all the data in the column sum difference matrix data are all within a preset column sum difference matrix range, and / or, Comparing whether all the data in the row sum difference matrix data are all within a preset row sum difference matrix range; If so, determine the touch screen panel as a good product; If not, determine the touch screen panel as a defective product.

9. The detection method according to claim 7, wherein The step "comparing whether each capacitance value of the abnormal capacitance is within a second preset range" includes: Comparing whether each capacitance value of the abnormal capacitance is within a second preset range; If all the capacitance values are within the second preset range, perform the hybrid calculation and determination.

10. The detection method according to claim 7, characterized in that, The step "determining whether the number of the abnormal capacitances meets a preset number condition" includes: Determining whether the number of the abnormal capacitances meets a preset number condition; If so, perform the hybrid calculation and determination.

11. A detecting device for a touch screen panel, characterized in that, Includes: An acquisition module for acquiring the capacitance matrix data of the touch screen panel; A first judgment module for comparing whether each capacitance value in the capacitance matrix data is all within a first preset range, and if not, marking the capacitances corresponding to the capacitance values not within the first preset range as abnormal capacitances; A second judgment module for determining whether the number of the abnormal capacitances meets a preset number condition; If so, comparing whether each capacitance value of the abnormal capacitance is within a second preset range, wherein the lower limit of the second preset range is lower than the lower limit of the first preset range, and / or, the upper limit of the second preset range is higher than the upper limit of the first preset range, and if at least one capacitance value is not within the second preset range, determine the touch screen panel as a defective product; If not, determine the touch screen panel as a defective product.

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