A mass production detection method and system for capacitive touch screen

Abstract

The present invention provides a mass production detection method for a capacitive touch screen, which is coordinated by a mechanical arm equipped with at least three parallel capacitive pen tips based on the width of the narrow frame of the capacitive touch screen. The specific method is to determine the narrow frame and long frame of the capacitive touch screen, and set the left and right sides corresponding to the narrow frame of the capacitive touch screen, and set the upper and lower sides corresponding to the long frame of the capacitive touch screen; under the working conditions of the left side of the narrow frame of the capacitive touch screen, the upper side of the long frame and the lower side of the long frame, respectively, the mechanical arm is driven to move, so as to capture the first, second and third line drawing tracks obtained by all parallel capacitive pen tips poking the screen and drawing lines on the capacitive touch screen with the movement of the mechanical arm in real time; according to the first, second and third line drawing tracks, the performance qualification of the capacitive touch screen is detected. The implementation of the present invention can solve the problem that the traditional single capacitive pen tip method is more time-consuming, and improve the detection efficiency and test reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of touch screen assemblies, and in particular to a mass production detection method and system for capacitive touch screens. Background Art

[0002] With the development of technology, the use of capacitive touch screens in various electronic products has become more and more common. Capacitive touch screens use capacitive detection technology, which has high consistency requirements for the capacitive sensors of the screen. In addition to the conventional static rawdata value and baseline value reading calibration, dynamic human hand or robotic arm simulated line drawing detection is usually required to ensure the effectiveness and linearity of the screen capacitive sensor.

[0003] like Figure 1 As shown, the traditional method and standard proposes that a single capacitive stylus draws on each of the four edges of the touch screen, and then draws an X line or a circle. However, this method requires a 4-axis robotic arm and draws six lines for detection, which is time-consuming.

[0004] Therefore, it is necessary to propose a mass production detection method for capacitive touch screens, which can solve the problem of the traditional single capacitive pen tip method being time-consuming, so as to improve the detection efficiency and test reliability. Summary of the invention

[0005] The technical problem to be solved by the embodiments of the present invention is to provide a mass production detection method and system for capacitive touch screens, which can solve the problem that the traditional single capacitive pen method is time-consuming and improve the detection efficiency and test reliability.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides a mass production detection method for a capacitive touch screen, which is coordinated by a mechanical arm equipped with at least three parallel capacitive stylus tips based on the width of the narrow frame of the capacitive touch screen. The method includes the following steps:

[0007] Determine a narrow frame and a long frame of the capacitive touch screen, and set a left side and a right side corresponding to the narrow frame of the capacitive touch screen, and set an upper side and a lower side corresponding to the long frame of the capacitive touch screen;

[0008] Under the working condition that all the parallel capacitive pen tips are aligned in a row and in contact with the left edge of the narrow frame of the capacitive touch screen, and the two outermost capacitive pen tips are respectively close to the upper and lower edges of the long frame of the capacitive touch screen, the mechanical arm is driven to move toward the right direction of the narrow frame of the capacitive touch screen, so as to capture in real time the first line drawing trajectory obtained by all the parallel capacitive pen tips poking the screen and drawing lines on the capacitive touch screen as the mechanical arm moves, until all the parallel capacitive pen tips reach the right edge of the narrow frame of the capacitive touch screen at the same time;

[0009] Under the working condition that all the parallel capacitive pen tips are aligned in a row and are in contact with the upper edge of the long frame of the capacitive touch screen, and the outermost capacitive pen tip is close to the left edge of the narrow frame of the capacitive touch screen, the mechanical arm is driven to move toward the lower side of the long frame of the capacitive touch screen, so as to capture in real time the second line drawing trajectory obtained by all the parallel capacitive pen tips poking the screen and drawing lines on the capacitive touch screen as the mechanical arm moves, until all the parallel capacitive pen tips reach the lower edge of the long frame of the capacitive touch screen at the same time;

[0010] Under the working condition that all the parallel capacitive pen tips are aligned in a row and are in contact with the lower edge of the long frame of the capacitive touch screen, and the outermost capacitive pen tip is close to the right edge of the narrow frame of the capacitive touch screen, the mechanical arm is driven to move toward the upper side of the long frame of the capacitive touch screen, so as to capture in real time the third line drawing trajectory obtained by all the parallel capacitive pen tips poking the screen and drawing lines on the capacitive touch screen as the mechanical arm moves, until all the parallel capacitive pen tips reach the upper edge of the long frame of the capacitive touch screen at the same time;

[0011] The performance qualification of the capacitive touch screen is detected according to the first drawing line track, the second drawing line track and the third drawing line track.

[0012] The performance qualification includes whether the touch validity is qualified or unqualified, and whether the linearity is qualified or unqualified.

[0013] Among them, all parallel capacitor pen tips are arranged at equal intervals.

[0014] There is a partial spatial overlap between the second line drawing trajectory and the third line drawing trajectory.

[0015] The embodiment of the present invention further provides a mass production detection system for a capacitive touch screen, which cooperates with a mechanical arm equipped with at least three parallel capacitive stylus tips based on the width of the narrow frame of the capacitive touch screen, including:

[0016] A frame side setting unit, used to determine the narrow frame and the long frame of the capacitive touch screen, and set the left side and the right side corresponding to the narrow frame of the capacitive touch screen, and set the upper side and the lower side corresponding to the long frame of the capacitive touch screen;

[0017] A first line drawing unit is used to drive the mechanical arm to move toward the right side of the narrow frame of the capacitive touch screen under the condition that all the parallel capacitive pen tips are aligned in a row and all contact the left edge of the narrow frame of the capacitive touch screen, and the two outermost capacitive pen tips are respectively close to the upper and lower edges of the long frame of the capacitive touch screen, so as to capture in real time the first line drawing trajectory obtained by all the parallel capacitive pen tips poking the screen and drawing lines on the capacitive touch screen with the movement of the mechanical arm, until all the parallel capacitive pen tips reach the right edge of the narrow frame of the capacitive touch screen at the same time;

[0018] A second line drawing unit is used to drive the mechanical arm to move toward the lower side of the long frame of the capacitive touch screen under the condition that all the parallel capacitive pen tips are aligned in a row and are in contact with the upper side edge of the long frame of the capacitive touch screen, and the outermost capacitive pen tip is close to the left side edge of the narrow frame of the capacitive touch screen, so as to capture in real time the second line drawing trajectory obtained by all the parallel capacitive pen tips poking and drawing on the capacitive touch screen as the mechanical arm moves, until all the parallel capacitive pen tips reach the lower side edge of the long frame of the capacitive touch screen at the same time;

[0019] A third line drawing unit is used to drive the mechanical arm to move toward the upper side of the long frame of the capacitive touch screen under the condition that all the parallel capacitive pen tips are aligned in a row and are in contact with the lower side edge of the long frame of the capacitive touch screen, and the outermost capacitive pen tip is close to the right side edge of the narrow frame of the capacitive touch screen, so as to capture in real time a third line drawing trajectory obtained by all the parallel capacitive pen tips poking and drawing on the capacitive touch screen as the mechanical arm moves, until all the parallel capacitive pen tips reach the upper side edge of the long frame of the capacitive touch screen at the same time;

[0020] The performance detection unit is used to detect the performance qualification of the capacitive touch screen according to the first drawing line track, the second drawing line track and the third drawing line track.

[0021] Among them, the performance includes touch effectiveness and linearity.

[0022] Among them, all parallel capacitor pen tips are arranged at equal intervals.

[0023] There is a partial spatial overlap between the second line drawing trajectory and the third line drawing trajectory.

[0024] Implementing the embodiments of the present invention has the following beneficial effects:

[0025] Compared with the traditional single capacitive pen tip method of drawing a line six times, the present invention only needs to draw a line three times by equipping a mechanical arm with at least three parallel capacitive pen tips based on the width of the narrow frame of the capacitive touch screen, so as to realize the performance detection of the capacitive touch screen, saving time and labor, thus solving the problem of the traditional single capacitive pen tip method being time-consuming and improving the detection efficiency and test reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the present invention.

[0027] Figure 1 A scene diagram of a conventional single capacitive pen tip drawing a line on a capacitive touch screen in the prior art;

[0028] Figure 2 A flow chart of a mass production detection method of a capacitive touch screen provided by an embodiment of the present invention;

[0029] Figure 3 A simplified structural diagram of a mechanical arm in a mass production detection method for a capacitive touch screen provided by an embodiment of the present invention;

[0030] Figure 4 A schematic diagram of a first line drawing trajectory formed by a mechanical arm drawing a line from left to right in a mass production detection method of a capacitive touch screen provided by an embodiment of the present invention;

[0031] Figure 5 A schematic diagram of a second line drawing trajectory formed by a mechanical arm drawing a line from top to bottom in a mass production detection method of a capacitive touch screen provided by an embodiment of the present invention;

[0032] Figure 6 A schematic diagram of a third line drawing trajectory formed by a mechanical arm drawing a line from bottom to top in a mass production detection method of a capacitive touch screen provided by an embodiment of the present invention;

[0033] Figure 7 A schematic structural diagram of a mass production detection system for a capacitive touch screen provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0034] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0035] like Figure 2As shown in the figure, a mass production detection method of a capacitive touch screen is proposed in an embodiment of the present invention, which is based on the width of the narrow frame of the capacitive touch screen (such as a TFT screen) equipped with a mechanical arm (such as a TFT screen) with at least three parallel capacitive pen tips. Figure 3 The method comprises the following steps:

[0036] Step S1, determining the narrow frame and the long frame of the capacitive touch screen, and setting the left side and the right side corresponding to the narrow frame of the capacitive touch screen, and setting the upper side and the lower side corresponding to the long frame of the capacitive touch screen;

[0037] Step S2: Under the condition that all the parallel capacitive pen tips are aligned in a row and in contact with the left edge of the narrow frame of the capacitive touch screen, and the two outermost capacitive pen tips are respectively close to the upper and lower edges of the long frame of the capacitive touch screen, the mechanical arm is driven to move toward the right direction of the narrow frame of the capacitive touch screen, so as to capture in real time the first line drawing trajectory obtained by all the parallel capacitive pen tips poking the capacitive touch screen with the movement of the mechanical arm, until all the parallel capacitive pen tips reach the right edge of the narrow frame of the capacitive touch screen at the same time;

[0038] Step S3, under the condition that all the parallel capacitive pen tips are aligned in a row and are in contact with the upper edge of the long frame of the capacitive touch screen, and the outermost capacitive pen tip is close to the left edge of the narrow frame of the capacitive touch screen, the mechanical arm is driven to move toward the lower side of the long frame of the capacitive touch screen, so as to capture in real time the second line drawing trajectory obtained by all the parallel capacitive pen tips poking the screen and drawing lines on the capacitive touch screen as the mechanical arm moves, until all the parallel capacitive pen tips reach the lower edge of the long frame of the capacitive touch screen at the same time;

[0039] Step S4, under the condition that all the parallel capacitive pen tips are aligned in a row and are in contact with the lower edge of the long frame of the capacitive touch screen, and the outermost capacitive pen tip is close to the right edge of the narrow frame of the capacitive touch screen, the mechanical arm is driven to move toward the upper side of the long frame of the capacitive touch screen, so as to capture in real time the third line drawing trajectory obtained by all the parallel capacitive pen tips poking the screen and drawing lines on the capacitive touch screen as the mechanical arm moves, until all the parallel capacitive pen tips reach the upper edge of the long frame of the capacitive touch screen at the same time;

[0040] Step S5: Detecting the performance qualification of the capacitive touch screen according to the first drawing line track, the second drawing line track and the third drawing line track.

[0041] The specific process is that in step S1, in order to facilitate the positioning of the robotic arm, based on the structural characteristics of the capacitive touch screen, the narrow frame and long frame of the capacitive touch screen are determined, and the left and right sides are set corresponding to the narrow frame of the capacitive touch screen, and the upper and lower sides are set corresponding to the long frame of the capacitive touch screen. It should be noted that the basis of the positioning is to use the center point of the capacitive touch screen as a reference point, and determine the left and right directions and the up and down directions of the reference point to ensure that the movement direction of the robotic arm can be accurately identified.

[0042] In step S2, first, the mechanical arm is driven to position so that all the parallel capacitive pen tips are aligned in a row and in contact with the left edge of the narrow frame of the capacitive touch screen, and the two outermost capacitive pen tips are respectively distributed close to the upper and lower edges of the long frame of the capacitive touch screen; wherein all the parallel capacitive pen tips are arranged at equal intervals; or all the parallel capacitive pen tips are arranged at unequal intervals;

[0043] Secondly, under the above working conditions, the robotic arm is driven to move toward the right side of the narrow frame of the capacitive touch screen to capture in real time the first line trajectory obtained by all the parallel capacitive stylus tips poking the capacitive touch screen with the movement of the robotic arm, until all the parallel capacitive stylus tips reach the right edge of the narrow frame of the capacitive touch screen at the same time. Figure 4 shown.

[0044] It is understandable that the first line drawing track may also be a line drawing from right to left, which is adjusted according to actual needs.

[0045] In step S3, first, the mechanical arm is driven to position so that all the parallel capacitive pen tips are aligned in a row and in contact with the upper edge of the long frame of the capacitive touch screen, and the outermost capacitive pen tip is close to the left edge of the narrow frame of the capacitive touch screen;

[0046] Secondly, under the above working conditions, the robotic arm is driven to move toward the lower side of the long frame of the capacitive touch screen to capture in real time the second line drawing trajectory obtained by all the parallel capacitive pen tips poking the capacitive touch screen with the movement of the robotic arm, until all the parallel capacitive pen tips reach the lower side edge of the long frame of the capacitive touch screen at the same time. Figure 5 shown.

[0047] In step S4, first, the mechanical arm is driven to position so that all the parallel capacitive pen tips are aligned in a row and in contact with the lower edge of the long frame of the capacitive touch screen, and the outermost capacitive pen tip is close to the right edge of the narrow frame of the capacitive touch screen;

[0048] Secondly, under the above working conditions, the robotic arm is driven to move toward the upper side of the long frame of the capacitive touch screen, so as to capture in real time the third line drawing trajectory obtained by all the parallel capacitive pen tips poking the screen and drawing lines on the capacitive touch screen as the robotic arm moves, until all the parallel capacitive pen tips reach the upper side edge of the long frame of the capacitive touch screen at the same time. Figure 6 shown.

[0049] In step S5, the performance qualification of the capacitive touch screen is detected according to the first drawing line track, the second drawing line track and the third drawing line track, including whether the touch validity is qualified or unqualified, and whether the linearity is qualified or unqualified. For example, if any one of the first drawing line track, the second drawing line track and the third drawing line track has a narrowing line type, a blurred line or a broken line, the performance of the capacitive touch screen is determined to be unqualified, and the specific unqualified performance can be analyzed according to the narrowing line type, the blurred line or the broken line. Touch validity and linearity. For another example, if the first drawing line track, the second drawing line track and the third drawing line track are uniform, continuous and clearly visible, the performance of the capacitive touch screen is determined to be qualified.

[0050] It is understandable that the execution order of the line drawing steps of steps S2 to S4 can be adjusted according to actual requirements. In order to ensure that the detection range of the capacitive touch screen can cover the entire screen, the second line drawing track and the third line drawing track can be set to overlap partially.

[0051] like Figure 7 As shown, a mass production detection system of a capacitive touch screen is provided in an embodiment of the present invention, which cooperates with a mechanical arm equipped with at least three parallel capacitive stylus tips based on the width of the narrow frame of the capacitive touch screen, including:

[0052] The frame side setting unit 110 is used to determine the narrow frame and the long frame of the capacitive touch screen, and set the left side and the right side corresponding to the narrow frame of the capacitive touch screen, and set the upper side and the lower side corresponding to the long frame of the capacitive touch screen;

[0053] The first line drawing unit 120 is used to drive the mechanical arm to move toward the right side of the narrow frame of the capacitive touch screen under the condition that all the parallel capacitive pen tips are aligned in a row and all contact the left edge of the narrow frame of the capacitive touch screen, and the two outermost capacitive pen tips are respectively close to the upper and lower edges of the long frame of the capacitive touch screen, so as to capture in real time the first line drawing trajectory obtained by all the parallel capacitive pen tips poking the screen and drawing lines on the capacitive touch screen with the movement of the mechanical arm, until all the parallel capacitive pen tips reach the right edge of the narrow frame of the capacitive touch screen at the same time;

[0054] The second line drawing unit 130 is used to drive the mechanical arm to move toward the lower side of the long frame of the capacitive touch screen under the condition that all the parallel capacitive pen tips are aligned in a row and are in contact with the upper side edge of the long frame of the capacitive touch screen, and the outermost capacitive pen tip is close to the left side edge of the narrow frame of the capacitive touch screen, so as to capture in real time the second line drawing trajectory obtained by all the parallel capacitive pen tips poking the screen and drawing lines on the capacitive touch screen with the movement of the mechanical arm, until all the parallel capacitive pen tips reach the lower side edge of the long frame of the capacitive touch screen at the same time;

[0055] The third line drawing unit 140 is used to drive the mechanical arm to move toward the upper side of the long frame of the capacitive touch screen under the condition that all the parallel capacitive pen tips are aligned in a row and are in contact with the lower side edge of the long frame of the capacitive touch screen, and the outermost capacitive pen tip is close to the right side edge of the narrow frame of the capacitive touch screen, so as to capture in real time the third line drawing trajectory obtained by all the parallel capacitive pen tips poking and drawing on the capacitive touch screen with the movement of the mechanical arm, until all the parallel capacitive pen tips reach the upper side edge of the long frame of the capacitive touch screen at the same time;

[0056] The performance detection unit 150 is used to detect the performance qualification of the capacitive touch screen according to the first drawing line track, the second drawing line track and the third drawing line track.

[0057] Among them, the performance includes touch effectiveness and linearity.

[0058] Among them, all parallel capacitor pen tips are arranged at equal intervals.

[0059] There is a partial spatial overlap between the second line drawing trajectory and the third line drawing trajectory.

[0060] Implementing the embodiments of the present invention has the following beneficial effects:

[0061] Compared with the traditional single capacitive pen tip method of drawing a line six times, the present invention only needs to draw a line three times by equipping a mechanical arm with at least three parallel capacitive pen tips based on the width of the narrow frame of the capacitive touch screen, so as to realize the performance detection of the capacitive touch screen, saving time and labor, thus solving the problem of the traditional single capacitive pen tip method being time-consuming and improving the detection efficiency and test reliability.

[0062] It is worth noting that in the above system embodiment, the various units included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of the present invention.

[0063] A person skilled in the art can understand that all or part of the steps in the above-mentioned embodiment method can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, such as ROM / RAM, disk, CD-ROM, etc.

[0064] The above disclosure is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A mass production detection method for a capacitive touch screen, characterized in that: The method is carried out by using a mechanical arm equipped with at least three parallel capacitive stylus tips based on the width of the narrow frame of the capacitive touch screen, and comprises the following steps: Determine a narrow frame and a long frame of the capacitive touch screen, and set a left side and a right side corresponding to the narrow frame of the capacitive touch screen, and set an upper side and a lower side corresponding to the long frame of the capacitive touch screen; Under the working condition that all the parallel capacitive pen tips are aligned in a row and in contact with the left edge of the narrow frame of the capacitive touch screen, and the two outermost capacitive pen tips are respectively close to the upper and lower edges of the long frame of the capacitive touch screen, the mechanical arm is driven to move toward the right direction of the narrow frame of the capacitive touch screen, so as to capture in real time the first line drawing trajectory obtained by all the parallel capacitive pen tips poking the screen and drawing lines on the capacitive touch screen as the mechanical arm moves, until all the parallel capacitive pen tips reach the right edge of the narrow frame of the capacitive touch screen at the same time; Under the working condition that all the parallel capacitive pen tips are aligned in a row and are in contact with the upper edge of the long frame of the capacitive touch screen, and the outermost capacitive pen tip is close to the left edge of the narrow frame of the capacitive touch screen, the mechanical arm is driven to move toward the lower side of the long frame of the capacitive touch screen, so as to capture in real time the second line drawing trajectory obtained by all the parallel capacitive pen tips poking the screen and drawing lines on the capacitive touch screen as the mechanical arm moves, until all the parallel capacitive pen tips reach the lower edge of the long frame of the capacitive touch screen at the same time; Under the working condition that all the parallel capacitive pen tips are aligned in a row and are in contact with the lower edge of the long frame of the capacitive touch screen, and the outermost capacitive pen tip is close to the right edge of the narrow frame of the capacitive touch screen, the mechanical arm is driven to move toward the upper side of the long frame of the capacitive touch screen, so as to capture in real time the third line drawing trajectory obtained by all the parallel capacitive pen tips poking the screen and drawing lines on the capacitive touch screen as the mechanical arm moves, until all the parallel capacitive pen tips reach the upper edge of the long frame of the capacitive touch screen at the same time; The performance qualification of the capacitive touch screen is detected according to the first drawing line track, the second drawing line track and the third drawing line track.

2. The mass production detection method of the capacitive touch screen according to claim 1, characterized in that: The performance qualifications include a touch validity pass or fail, and a linearity pass or fail.

3. The mass production detection method of the capacitive touch screen according to claim 1, characterized in that: All parallel capacitive pen tips are arranged at equal intervals.

4. The mass production detection method of the capacitive touch screen according to claim 1, characterized in that: The second drawing track and the third drawing track partially overlap in space.

5. A mass production detection system for capacitive touch screens, characterized in that: It cooperates with a mechanical arm equipped with at least three parallel capacitive pen tips based on the width of the narrow frame of the capacitive touch screen, including; A frame side setting unit, used to determine the narrow frame and the long frame of the capacitive touch screen, and set the left side and the right side corresponding to the narrow frame of the capacitive touch screen, and set the upper side and the lower side corresponding to the long frame of the capacitive touch screen; A first line drawing unit is used to drive the mechanical arm to move toward the right side of the narrow frame of the capacitive touch screen under the condition that all the parallel capacitive pen tips are aligned in a row and all contact the left edge of the narrow frame of the capacitive touch screen, and the two outermost capacitive pen tips are respectively close to the upper and lower edges of the long frame of the capacitive touch screen, so as to capture in real time the first line drawing trajectory obtained by all the parallel capacitive pen tips poking the screen and drawing lines on the capacitive touch screen with the movement of the mechanical arm, until all the parallel capacitive pen tips reach the right edge of the narrow frame of the capacitive touch screen at the same time; A second line drawing unit is used to drive the mechanical arm to move toward the lower side of the long frame of the capacitive touch screen under the condition that all the parallel capacitive pen tips are aligned in a row and are in contact with the upper side edge of the long frame of the capacitive touch screen, and the outermost capacitive pen tip is close to the left side edge of the narrow frame of the capacitive touch screen, so as to capture in real time the second line drawing trajectory obtained by all the parallel capacitive pen tips poking and drawing on the capacitive touch screen as the mechanical arm moves, until all the parallel capacitive pen tips reach the lower side edge of the long frame of the capacitive touch screen at the same time; A third line drawing unit is used to drive the mechanical arm to move toward the upper side of the long frame of the capacitive touch screen under the condition that all the parallel capacitive pen tips are aligned in a row and are in contact with the lower side edge of the long frame of the capacitive touch screen, and the outermost capacitive pen tip is close to the right side edge of the narrow frame of the capacitive touch screen, so as to capture in real time a third line drawing trajectory obtained by all the parallel capacitive pen tips poking and drawing on the capacitive touch screen as the mechanical arm moves, until all the parallel capacitive pen tips reach the upper side edge of the long frame of the capacitive touch screen at the same time; The performance detection unit is used to detect the performance qualification of the capacitive touch screen according to the first drawing line track, the second drawing line track and the third drawing line track.

6. The mass production detection system of the capacitive touch screen according to claim 5, characterized in that: The performance includes touch validity and linearity.

7. The mass production detection system of the capacitive touch screen according to claim 5, characterized in that: All parallel capacitive pen tips are arranged at equal intervals.

8. The mass production detection system of the capacitive touch screen according to claim 5, characterized in that: The second drawing track and the third drawing track partially overlap in space.

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