A new screen touch function test device

Abstract

This utility model relates to a novel screen touch function testing device, which includes a pressure plate, a driving assembly, a guide post, and a locking micrometer head. The pressure plate has multiple mounting holes for mounting multiple test heads; the pressure plate also has guide holes to allow it to move up and down along the guide post; the driving assembly drives the pressure plate to move; the locking micrometer head has a micrometer screw, and the top of each test head is connected to the micrometer screw of the locking micrometer head, allowing the initial pressure position of the test head to be adjusted. Because each test head of the screen has an individually adjustable micrometer head, the test data of each touch point can be quickly and effectively adjusted to the program-set control range, saving program debugging time and improving the reliability and accuracy of touch testing results.

Description

Technical Field

[0001] This utility model relates to the field of touch screen testing technology, and specifically to a novel screen touch function testing device. Background Technology

[0002] Modern display devices increasingly utilize touchscreens, especially in consumer-grade devices like smartphones, tablets, and even laptops. Touchscreen functionality is a primary focus of testing, encompassing basic touch accuracy, sensitivity and response speed, and multi-touch capabilities to identify and eliminate potential defects. Therefore, touchscreen testing has become an essential step in the manufacturing process.

[0003] Existing screen touch function testing equipment typically includes a test platform, a servo motor module, a pressure plate, and copper pillars and conductive probes mounted on the pressure plate. The servo motor module (with an accuracy of 0.1mm) vertically drives the grounded, fully conductive copper pillars and conductive probes to press down on designated touch points (9 or 12 points) on the screen. The controller sets the pressing stroke, ensuring the pressing pressure reaches a program-defined value range. When 9 or 12 touch points are fixed on the same plate and driven uniformly by the servo motor, the dimensions of the probes, copper pillars, and the pressure plate all have certain tolerances. During uniform pressing, the force applied to the screen surface will vary, and the pressure cannot be adjusted for individual points, affecting the touch test results. Utility Model Content

[0004] In view of this, a new screen touch function testing device with high reliability and accuracy of test results is provided to solve the technical problem of inconsistent pen tip pressure caused by various tolerances in existing testing devices.

[0005] A novel screen touch function testing device includes a lower pressure plate, a driving assembly, a guide post, and a locking micrometer head. The lower pressure plate has multiple mounting holes for mounting multiple test heads; the lower pressure plate has guide holes to allow it to move up and down along the guide post; the driving assembly is used to drive the lower pressure plate to move; the locking micrometer head has a micrometer screw, and the top of each test head is connected to the micrometer screw of the locking micrometer head, allowing the initial pressure position of the test head to be adjusted via the locking micrometer head.

[0006] Specifically, the locking micrometer head includes a fixed sleeve, a micrometer rotating cylinder, a locking device, and the micrometer screw; the rotation of the micrometer rotating cylinder drives the micrometer screw to move forward or backward, thereby achieving displacement adjustment; the locking device locks the micrometer head after each test head is adjusted to the correct position.

[0007] Furthermore, the locking micrometer head is mounted on the mounting hole via a fixing sleeve.

[0008] Furthermore, the body of the fixing sleeve of the locking micro-head is assembled into the mounting hole by interference fit; the lower pressure plate is further provided with a relief groove on the upper edge of the mounting hole in order to accommodate the locking device of the locking micro-head.

[0009] Specifically, the locking device of the locking micro head includes a collar, a locking screw, and a wrench. The collar is fitted onto the fixing sleeve of the locking micro head, and the locking screw passes through the wall of the collar, with one end abutting against the fixing sleeve and the other end fitted with the wrench.

[0010] Furthermore, the locking micrometer head also includes a fastening nut, which is fitted onto the portion of the fixing sleeve that extends below the mounting hole.

[0011] Specifically, the test head includes a copper pillar and a conductive pen tip, which are vertically mounted. The locking micrometer head is coaxially and vertically mounted with the copper pillar and the conductive pen tip. The copper pillar has an opening at the top and a screw hole at the bottom. The micrometer screw of the locking micrometer head is inserted into the opening of the copper pillar, and the conductive pen tip is threaded into the screw hole of the copper pillar.

[0012] Preferably, the driving component is a servo motor module, used to drive the lower pressure plate to press down so that the test head contacts the specified touch point on the screen.

[0013] Furthermore, a slider is connected to one side of the lower pressure plate, and the slider is connected to the servo motor module and slides under the drive of the servo motor module.

[0014] Furthermore, the novel screen touch function testing equipment also includes a test platform, on which tooling components are provided for mounting the screen; the test platform is provided with a mounting frame, which has multiple mounting arms, each mounting arm extending laterally from the mounting frame, and each mounting arm having at least one guide post pointing downwards at its free end.

[0015] In the aforementioned new screen touch function testing equipment, the original fixed connection between the pen tip and the copper pillar has been changed to adding an adjustable-length locking micro-head at the corresponding pen tip position. This locking micro-head connects to the copper pillar and the conductive pen tip, allowing for individual adjustment of the pen tip pressure based on test data. Once adjusted, the micro-head is locked in place. Because each test head on the screen has an individually adjustable micro-head, the test data for each touch point can be quickly and effectively adjusted to the program-defined control range, saving program debugging time and improving the reliability and accuracy of touch testing results. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of the novel screen touch function testing device provided in this embodiment of the utility model.

[0017] Figure 2 for Figure 1 A partial structural diagram of a new screen touch function testing device.

[0018] Figure 3 for Figure 1 An exploded view of the lockable micrometer head and test head in a new screen touch function testing device.

[0019] In the attached image:

[0020] 100. Test stand; 102. Mounting bracket; 12. Lower pressure plate; 122. Mounting hole; 125. Guide hole; 126. Clearance groove; 13. Servo motor module; 15. Guide post; 17. Slider; 19. Mounting arm; 20. Locking micrometer head; 21. Fixing sleeve; 24. Micrometer screw; 25. Test head; 26. Fastening nut; 27. Copper pillar; 271. Opening; 28. Pen tip; 31. Collar; 33. Locking screw; 35. Wrench. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 and Figure 2 This illustration shows a novel screen touch function testing device according to Embodiment 1 of the present invention. It includes a lower pressure plate 12, a driving assembly, and guide posts 15. The lower pressure plate 12 has multiple mounting holes 122 for mounting multiple test heads 25; the lower pressure plate 12 also has guide holes 125 to allow it to move up and down along the guide posts 15. The driving assembly drives the lower pressure plate 12 to move. The device also includes a locking micrometer head 20, which has a micrometer screw 24. The top of each test head 25 is connected to the micrometer screw 24 of the locking micrometer head 20, allowing the initial pressure position of the test head 25 to be adjusted via the locking micrometer head 20.

[0023] Preferably, such as Figure 1As shown, the driving component is a servo motor module 13, used to drive the lower pressure plate 12 to press down, causing the test head 25 to contact the designated touch point on the screen 105. Furthermore, a slider 16 is connected to one side of the lower pressure plate 12, and the slider 16 is connected to the servo motor module 13 and slides under the drive of the servo motor module 13. The illustration shows nine test heads 25 used to test the touch functionality at nine locations on the screen 105.

[0024] Furthermore, the novel screen touch function testing equipment also includes a test platform 100, on which tooling components are provided for mounting the screen 105; the test platform 100 is provided with a mounting frame 102, which has a plurality of mounting arms 19, each mounting arm 19 extending laterally from the mounting frame 102, and each mounting arm 19 having at least one guide post 15 downwardly at its free end.

[0025] like Figure 2 As shown, specifically, the locking micrometer head 20 includes a fixed sleeve 21, a micrometer rotating cylinder 22, a locking device 30, and the micrometer screw 24; the rotation of the micrometer rotating cylinder 22 drives the micrometer screw 24 to move forward or backward, achieving displacement adjustment; the locking device 30 locks the micrometer head 25 after it is adjusted into position. The locking micrometer head 20 is installed in the mounting hole 122 via the fixed sleeve 21.

[0026] Specifically, the body of the fixing sleeve 21 of the locking micrometer head 20 is fitted into the mounting hole 122 by an interference fit. The lower pressure plate 12 has a relief groove 126 further provided on the upper edge of the mounting hole 122 to accommodate the locking device 30 of the locking micrometer head 20.

[0027] Preferably, such as Figure 2 and Figure 3 As shown, the locking device 30 of the locking micrometer head 20 includes a collar 31, a locking screw 33, and a wrench 35. The collar 31 is fitted onto the fixing sleeve 21 of the locking micrometer head 20. The locking screw 33 passes through the wall of the collar 31, with one end abutting against the fixing sleeve 21 and the other end fitted with the wrench 35. After the initial pressure position of the test head 25 is adjusted, the wrench 35 is tightened to fix the position of the test head 25. Figure 2 The two position states of the wrench 35 are shown. For example, the wrench 35 is in the loose state when it is pointing upwards, and in the locked state when it is pointing downwards.

[0028] In addition, the locking micro head 20 also includes a fastening nut 26, which is fitted to the part of the fixing sleeve 21 that extends out of the mounting hole 122, and cooperates to fix the locking micro head 20.

[0029] like Figure 2and Figure 3 As shown, the test head 25 includes a copper pillar 27 and a conductive pen tip 28. The copper pillar 27 and the conductive pen tip 28 are vertically mounted. The locking micrometer head 20 is coaxially and vertically mounted with the copper pillar 27 and the conductive pen tip 28. The copper pillar 27 has an opening 271 at the top and a screw hole at the bottom. The micrometer screw 24 of the locking micrometer head 20 is inserted into the opening 271 of the copper pillar 27, and the conductive pen tip 28 is threaded into the screw hole of the copper pillar 27.

[0030] During testing, the servo motor module 13 drives the pressure plate 12 to press down, causing the conductive pen tip 28 of the test head 25 to contact the designated touch point on the screen 105. The pressure of each conductive pen tip 28 is determined based on the test data to judge whether the conductive pen tip 28 has made proper contact. If the pressure is insufficient, absent, or excessive, the position of the corresponding conductive pen tip 28 needs to be fine-tuned using the locking micro-head 20 to meet the test pressure requirements. After adjustment, the micro-head is locked in place. Therefore, during formal testing, the force of the conductive pen tip 28 contacting the surface of the screen 105 remains consistent after uniform pressing, improving the reliability and accuracy of the touch test results.

[0031] It should be noted that this utility model is not limited to the above-described embodiments. Based on the inventive spirit of this utility model, those skilled in the art can make other changes, and these changes made based on the inventive spirit of this utility model should be included within the scope of protection claimed by this utility model.

Claims

1. A novel screen touch function testing device, comprising a lower pressure plate, a driving assembly, and a guide post, wherein the lower pressure plate has multiple mounting holes for mounting multiple test heads; the lower pressure plate has guide holes to allow the lower pressure plate to move up and down along the guide post; and the driving assembly is used to drive the lower pressure plate to move; characterized in that, It also includes a locking micrometer head, which has a micrometer screw. The top of each test head is connected to the micrometer screw of the locking micrometer head, and the initial pressure position of the test head is adjusted by the locking micrometer head.

2. The novel screen touch function testing device as described in claim 1, characterized in that, The locking micrometer head includes a fixed sleeve, a micrometer rotating cylinder, a locking device, and the micrometer screw; the rotation of the micrometer rotating cylinder drives the micrometer screw to move forward or backward, thereby achieving displacement adjustment; the locking device locks the micrometer screw in place after each test head is adjusted.

3. The novel screen touch function testing device as described in claim 1, characterized in that, The locking micrometer head is installed in the mounting hole via a fixing sleeve.

4. The novel screen touch function testing device as described in claim 1, characterized in that, The cylinder body of the locking micrometer head fixing sleeve is assembled into the mounting hole by interference fit; the lower pressure plate has a clearance groove on the upper edge of the mounting hole to accommodate the locking device of the locking micrometer head.

5. The novel screen touch function testing device as described in claim 2, characterized in that, The locking device of the locking micro head includes a collar, a locking screw and a wrench. The collar is fitted onto the fixing sleeve of the locking micro head. The locking screw passes through the wall of the collar, with one end abutting against the fixing sleeve and the other end fitted with the wrench.

6. The novel screen touch function testing device as described in claim 1, characterized in that, The locking micrometer head also includes a fastening nut, which is fitted to the lower part of the fixing sleeve that extends out of the mounting hole.

7. The novel screen touch function testing device as described in claim 1, characterized in that, The test head includes a copper pillar and a conductive pen tip, which are vertically mounted. The locking micrometer head is coaxially and vertically mounted with the copper pillar and the conductive pen tip. The copper pillar has an opening at the top and a screw hole at the bottom. The micrometer screw of the locking micrometer head is inserted into the opening of the copper pillar, and the conductive pen tip is threaded into the screw hole of the copper pillar.

8. The novel screen touch function testing device as described in claim 1, characterized in that, The driving component is a servo motor module, which is used to drive the lower pressure plate to press down so that the test head contacts the specified touch point on the screen.

9. The novel screen touch function testing device as described in claim 8, characterized in that, The lower pressure plate is connected to a slider on one side, and the slider is connected to the servo motor module and slides under the drive of the servo motor module.

10. The novel screen touch function testing device as described in claim 1, characterized in that, The novel screen touch function testing equipment also includes a test platform, on which tooling components are provided for mounting the screen; the test platform is provided with a mounting frame, which has multiple mounting arms, each mounting arm extending laterally from the mounting frame, and each mounting arm having at least one guide post pointing downwards at its free end.

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