Display module backboard strength detection equipment and method

Abstract

The invention discloses a display module backboard strength detection device, which comprises: a carrying table (1), which comprises a clamping adjustment module (11) and a clamping module (12), the clamping module (12) is installed at the adjustment end of the clamping adjustment module (11), and the clamping adjustment module (11) is used for adjusting the clamping area and the clamping position of the clamping module (12); the jacking and pressing module (3) comprises a jacking and pressing moving unit (31) and a jacking and pressing unit (32), and the jacking and pressing moving unit (31) is used for driving the jacking and pressing unit (32) to move and applying pressure to the back plate of the display module (5) to be tested in a multi-point and multi-time mode; and the plug-in moving unit (41) is used for driving the plug-in unit (42) to move and is in plug-in connection with a connector of a to-be-tested display module (5) or is used for pulling out a wire from the connector of the to-be-tested display module (5). By means of the mode, the pressurizing position, quantity and applied force of the product backboard can be set, static and dynamic detection can be met at the same time, and the equipment utilization rate and competitiveness are improved.

Description

Technical Field

[0001] This invention relates to the field of display module testing technology, and in particular to a display module backplate strength testing device and method. Background Technology

[0002] To effectively ensure the quality of display modules, technicians conduct a series of performance tests during their production process. Display modules primarily consist of display panels, and their display performance is assessed through screen testing. In some related technologies, display modules have interfaces; these modules also require screen testing before leaving the factory. Specifically, this involves establishing connectivity with a signal generator via cable connectors. One connector is connected to the signal generator, while the other connector is plugged and unplugged into different display modules sequentially to verify their display performance. Summary of the Invention

[0003] The main technical problem solved by this invention is to provide a display module back panel strength testing device and method that can meet the needs of different products. The pressure position, quantity and applied force of the product back panel can be set. It can simultaneously meet static and dynamic testing requirements. The device has rich functions and improves equipment utilization and competitiveness.

[0004] One technical solution adopted by this invention is: a display module backplane strength testing device, comprising, The platform includes a clamping adjustment module and a clamping module. The clamping module is installed at the adjustment end of the clamping adjustment module and is used to adjust the clamping area and clamping position of the clamping module before fixing the display module to be tested. The detection module is positioned above the display module under test on the platform and is used to take pictures of the display module under test for inspection. The top pressure module is located below the platform and includes a top pressure moving unit and a top pressure unit. The top pressure moving unit is used to drive the top pressure unit to move and apply pressure to the back panel of the display module under test at multiple points. A plug-in module is disposed on one side of the top pressure module, including a plug-in moving unit and a plug-in unit. The plug-in moving unit is used to drive the plug-in unit to move and plug or unplug the connector of the display module under test.

[0005] The clamping module includes a front clamping unit, a left clamping unit, and a right clamping unit respectively disposed in three directions. The clamping adjustment module includes a first adjuster for adjusting the front clamping unit, and a second adjuster for adjusting the left clamping unit and the right clamping unit.

[0006] The front clamping unit, the left clamping unit, and the right clamping unit have the same structure, each including a clamping base, a clamping driver, and a clamping transmission assembly. A fixed clamping plate is installed at one end of the upper surface of the base, and the clamping driver is installed on its lower surface. A movable clamping plate is installed at one end of the clamping transmission assembly, and the other end of the clamping transmission assembly is fixed to the telescopic end of the clamping driver. The clamping driver drives the movable clamping plate to flip and clamp or release the fixed clamping plate.

[0007] A buffer is also installed on the base. When the moving clamp and the fixed clamp are in a clamped state, the buffer performs a buffering action on the moving clamp.

[0008] An elastic element is installed on the lower end face of the moving clamp.

[0009] The pressing and moving unit is a three-axis moving unit, and the pressing unit is a top rod. The lifting end of the pressing and moving unit is equipped with the top rod.

[0010] The top-pressing moving unit includes an X-axis top-pressing mover, a Y-axis top-pressing mover installed at the movable end of the X-axis top-pressing mover, and a Z-axis top-pressing moving assembly installed at the movable end of the Y-axis top-pressing mover. The Z-axis top-pressing moving assembly includes a top-pressing mounting plate connected to the movable end of the Y-axis top-pressing mover. A force control platform is installed on the upper end of the top-pressing mounting plate, and the lifting end of the force control platform is equipped with the top rod through a force sensor.

[0011] The insertion and moving unit includes an X-axis insertion and moving component, a Y-axis insertion and moving component mounted on the movable end of the X-axis insertion and moving component, and a Z-axis insertion and moving component mounted on the movable end of the Y-axis insertion and moving component; the lifting end of the Z-axis insertion and moving component is equipped with an insertion platform of the insertion unit, the insertion platform is equipped with an insertion driver, and the driving end of the insertion driver is equipped with a connector; the insertion and moving unit is also equipped with a positioning camera, and the lens of the positioning camera is set towards the connector.

[0012] The plug-in platform is also equipped with a correction rotation assembly, and the plug-in driver is mounted on the rotation shaft of the correction rotation assembly; the plug-in platform is also equipped with a ranging sensor.

[0013] The testing method of any of the above-described display module back panel strength testing devices is adopted. S1. Place the display module to be tested onto the platform, and the clamping module clamps the three sides of the display module to be tested. S2. The insertion moving unit drives the insertion unit to move and inserts it into the connector of the display module under test; S3. The top pressure moving unit drives the top pressure unit to move and applies pressure to the back panel of the display module under test at multiple points multiple times; S4. The detection module takes photos of the back panel of the display module under test for inspection. S5. After the insertion and moving unit moves the insertion unit and separates from the connector of the display module under test, the clamping module is released and the display module under test is unloaded.

[0014] The beneficial effects of the display module backplate strength testing device and method of the present invention are: The detection module and the top pressure module of this application are located above and below the display module under test, respectively, forming a dynamic performance test of the product. That is, when the product back panel is pressurized point by point, the screen is automatically checked to find defects and automatically determine the grade according to the customer's specifications. It can simultaneously meet static and dynamic testing, and the equipment has rich functions, improving equipment utilization and competitiveness. The application allows for setting the pressure application location, quantity, and force on the back panel of the display module under test, thus meeting the needs of different products. The front clamping unit, left clamping unit, and right clamping unit of this application are all equipped with buffers to prevent the front clamping unit, left clamping unit, and right clamping unit from being over-pressured as a whole; elastic elements are installed on the lower end face of the moving clamping plate of the front clamping unit, left clamping unit, and right clamping unit to prevent hard friction with the back plate of the display module under test and damage it. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a display module backplate strength testing device according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a display module backplate strength testing device according to the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the clamping module of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the clamping module of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the plug-in module of the present invention. Figure 1 ; Figure 6 This is a schematic diagram of the plug-in module of the present invention. Figure 2 ; Figure 7 This is a schematic diagram of the detection module of the present invention; Figure 8 yes Figure 3 Enlarged image; Figure 9 This is a flowchart of the present invention. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the present invention clearer, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the drawings. The embodiments of the present invention shown in and described with reference to the drawings are merely exemplary, and the present invention is not limited to these embodiments.

[0017] It should also be noted that, in order to avoid obscuring the invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the invention are shown in the accompanying drawings, while other details that are not closely related to the invention are omitted.

[0018] Furthermore, in the description of this invention, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] Please see Figures 1-8 A display module backplate strength testing device, comprising, The platform 1 includes a clamping adjustment module 11 and a clamping module 12. The clamping adjustment module 11 is equipped with the clamping module 12 at its adjustment end. The clamping module 12 is used to adjust the clamping area and clamping position of the clamping module 12 and then fix the display module 5 to be tested. The detection module 2 is positioned above the display module under test on the platform 1 and is used to take pictures of the display module under test for inspection. The top pressure module 3 is located below the platform 1 and includes a top pressure moving unit 31 and a top pressure unit 32. The top pressure moving unit 31 is used to drive the top pressure unit 32 to move and apply pressure to the back panel of the display module 5 under test at multiple points. The plug-in module 4 is disposed on one side of the top pressure module 3 and includes a plug-in moving unit 41 and a plug-in unit 42. The plug-in moving unit 41 is used to drive the plug-in unit 42 to move and plug or unplug it from the connector of the display module 5 under test. In its specific implementation, this application combines control modules and processing modules to operate the testing module, the pressure module, and the plug-in module. Specifically, the clamping module clamps and fixes the display module under test. The side of the display module under test where the connector is installed does not have a clamping module. The plug-in unit of the plug-in module is equipped with a wire connector. After the plug-in moving unit drives the wire connector on the plug-in unit to plug into the connector on the display module under test, the pressure moving unit drives the pressure unit to apply pressure to the back plate of the display module under test at multiple points. The testing module takes pictures of each pressure point. After the test is qualified, the plug-in moving unit drives the wire connector on the plug-in unit to disconnect the wire from the connector on the display module under test and return it to its original position. The pressure moving unit drives the pressure unit to return to its original position, the clamping module opens, and the tested display module is transported to the next process.

[0020] The clamping module 12 includes a front clamping unit 121, a left clamping unit 122, and a right clamping unit 123 respectively disposed in three directions. The clamping adjustment module 11 includes a first adjuster 111 for adjusting the front clamping unit 121, and a second adjuster 112 for adjusting the left clamping unit 122 and the right clamping unit 123.

[0021] The front clamping unit 121, the left clamping unit 122, and the right clamping unit 123 have the same structure, each including a clamping base 1211, a clamping driver 1212, and a clamping transmission assembly 1213. A fixed clamping plate 1214 is installed at one end of the upper surface of the base 1211, and the clamping driver 1212 is installed on its lower surface. A movable clamping plate 1215 is installed at one end of the clamping transmission assembly 1213, and the other end of the clamping transmission assembly 1213 is fixed to the telescopic end of the clamping driver 1212. The clamping driver 1212 drives the movable clamping plate 1215 to flip and clamp or release the fixed clamping plate 1214.

[0022] Specifically, the first adjuster 111 includes a first adjusting driver 1112 and a first adjusting bracket 1111. The first adjusting driver 1112 has two movable ends, and a first adjusting bracket 1111 is fixedly installed on each of the two movable ends. The two movable ends of the first adjusting driver 1112 can move simultaneously, or one end can be fixed while the other end moves, and the movement mode of the movable ends can be selected according to the usage. In a specific implementation, the fixed clamping plates 1214 of the left clamping unit 122 and the right clamping unit 123 are respectively fixedly installed with one movable end.

[0023] Specifically, the second adjuster 112 includes two parallel second adjustment drivers 1121 and a second bracket 1122 fixedly connected to the movable ends of the two second adjustment drivers. A fixed clamping plate 1214 of the front clamping unit 121 is fixedly mounted on the second bracket 1122 for adjusting the front clamping unit 121 to move back and forth.

[0024] In summary, the first and second adjusters can change the clamping positions of the front clamping unit 121, the left clamping unit 122, and the right clamping unit 123, thereby changing the clamping area and clamping position, which can adapt to display modules of various sizes without changing the stage.

[0025] A buffer 1216 is also installed on the base. When the moving clamp 1215 and the fixed clamp 1214 are in a clamped state, the buffer 1216 performs a buffering action on the moving clamp 1215. Specifically, the buffer adopts a hydraulic cylinder to prevent overpressure on the moving clamp and the fixed clamp when they clamp the display module to be tested.

[0026] An elastic element 1217 is mounted on the lower end face of the movable clamping plate 1215. Specifically, the elastic element is made of U-shaped rubber to prevent damage to the product due to hard friction when the movable clamping plate clamps the display module under test.

[0027] The top-pressing moving unit 31 is capable of three-axis movement, the top-pressing unit 32 is a top rod, and the top rod is installed on the lifting end of the top-pressing moving unit 31.

[0028] The top-pressing moving unit 31 includes an X-axis top-pressing mover 311, a Y-axis top-pressing mover 312 installed at the movable end of the X-axis top-pressing mover 311, and a Z-axis top-pressing moving assembly installed at the movable end of the Y-axis top-pressing mover 312. The Z-axis top-pressing moving assembly includes a top-pressing mounting plate connected to the movable end of the Y-axis top-pressing mover 312. A force control platform 313 is installed on the upper end of the top-pressing mounting plate. The lifting end of the force control platform 313 is equipped with the top rod through a force sensor.

[0029] Specifically, the force control platform 313 uses a lifting drive with a power sensor and a top rod to perform lifting and lowering movements to perform top pressure tests on the back plate of the module under test.

[0030] The insertion and moving unit 41 includes an X-axis insertion and moving assembly 411, a Y-axis insertion and moving assembly 412 mounted on the movable end of the X-axis insertion and moving assembly 411, and a Z-axis insertion and moving assembly 413 mounted on the movable end of the Y-axis insertion and moving assembly 412. The Z-axis insertion and moving assembly 413 includes an insertion mounting plate 4131 connected to the movable end of the Y-axis insertion and moving assembly 412. The Z-axis insertion driver 4132 is fixedly mounted on the side of the insertion mounting plate 4131. The insertion platform 421 of the insertion unit 42 is mounted on the movable end of the Z-axis insertion driver 4132. The insertion driver 423 is mounted on the upper surface of the insertion platform. The connector 422 is mounted on the front end of the insertion driver. A positioning camera 43 is also mounted on the insertion mounting plate 4131. The positioning camera 43 is located below the connector 422.

[0031] Specifically, it also includes a linear guide rail 4111 arranged parallel to the X-axis insertion moving component 411, a slider on the linear guide rail 4111, an X-axis insertion moving plate 4112 mounted on the movable end of the X-axis insertion moving component, and a Y-axis insertion moving component fixedly mounted on the X-axis insertion moving plate 4112.

[0032] The upper surface of the insertion platform 421 is equipped with the correction rotation component 424, and the shaft of the correction rotation component 424 is equipped with the insertion driver 423. The insertion platform 421 is also equipped with a ranging sensor 44. In specific implementation, the X-axis insertion moving component 411 and the Y-axis insertion moving component 412 move the Z-axis insertion moving component 413 and the insertion unit 42 to the corresponding position of the connector of the display module under test. The Z-axis insertion moving component 413 moves upward so that the plug 422 is parallel to the connector of the display module under test. After the correction rotation component 424 finely adjusts the plug 422, the insertion driver moves forward so that the plug 422 is inserted into the connector of the display module under test. Conversely, the connection between the plug and the display module under test is separated. The X-axis insertion moving component 411, the Y-axis insertion moving component 412, and the Z-axis insertion moving component 413, along with the insertion unit 42, return to their original positions.

[0033] The detection module 2 includes a module mounting plate 21 fixed to the outside. An adjustment component 22 is installed on the module mounting plate 21. The adjustment component 22 is provided with a through hole. A camera 23 and a lens 24 are respectively installed at the upper and lower ends of the through hole.

[0034] Specifically, the adjustment assembly 22 includes a vertical adjustment unit and a horizontal adjustment unit. The vertical adjustment unit includes a vertical adjustment plate, and the horizontal adjustment unit includes an upper adjustment plate and a lower adjustment plate. The lower adjustment plate is fixedly connected to the vertical adjustment plate through a support plate. An adjustment waist hole is provided at the end corner of the upper adjustment plate. The upper adjustment plate and the lower adjustment plate are fixed by adjustment bolts located in the adjustment waist holes.

[0035] A testing method for a display module backplane strength testing device, comprising the following steps: S1. Place the display module to be tested onto the platform, and the clamping module clamps the three sides of the display module to be tested. S2. The insertion moving unit drives the insertion unit to move and inserts it into the connector of the display module under test; S3. The top pressure moving unit drives the top pressure unit to move and applies pressure to the back panel of the display module under test at multiple points multiple times; S4. The detection module takes pictures of the display module under test for inspection. S5. After the insertion and moving unit moves the insertion unit and separates from the connector of the display module under test, the clamping module is released and the display module under test is unloaded.

[0036] Specifically, the S1 stage clamps the three sides of the display module under test that do not have connectors installed, while the side with connectors installed faces the plug-in module. After clamping, the center of the display module under test coincides with the center of the camera of the detection module. Specifically, in S3, the top pressure moving unit drives the top pressure unit to apply pressure to the display module under test once, and the camera of the detection module takes a picture for inspection once, until the point pressure and picture inspection are cycled 5 times.

[0037] Furthermore, it should be noted that in this specification, "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. 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.

Claims

1. A strength testing device for a display module back panel, characterized in that, include, The stage (1) includes a clamping adjustment module (11) and a clamping module (12). The clamping module (12) is installed on the adjustment end of the clamping adjustment module (11) and is used to adjust the clamping area and clamping position of the clamping module (12) and then fix the display module (5) to be tested. The detection module (2) is set above the display module to be tested on the platform (1) and is used to take pictures of the display module to be tested for inspection. The top pressure module (3) is located below the platform (1) and includes a top pressure moving unit (31) and a top pressure unit (32). The top pressure moving unit (31) is used to drive the top pressure unit (32) to move and apply pressure to the back panel of the display module (5) under test at multiple points. The plug-in module (4) is located on one side of the top pressure module (3) and includes a plug-in moving unit (41) and a plug-in unit (42). The plug-in moving unit (41) is used to drive the plug-in unit (42) to move and plug or unplug the connector of the display module (5) under test.

2. The display module back panel strength testing device according to claim 1, characterized in that, The clamping module (12) includes a front clamping unit (121), a left clamping unit (122), and a right clamping unit (123) respectively disposed in three directions. The clamping adjustment module (11) includes a first adjuster (111) for adjusting the front clamping unit (121), and a second adjuster (112) for adjusting the left clamping unit (122) and the right clamping unit (123).

3. The display module back panel strength testing device according to claim 2, characterized in that, The front clamping unit (121), the left clamping unit (122), and the right clamping unit (123) have the same structure, each including a clamping base (1211), a clamping driver (1212), and a clamping transmission assembly (1213). A fixed clamping plate (1214) is installed at one end of the upper surface of the base (1211), and the clamping driver (1212) is installed on its lower surface. A movable clamping plate (1215) is installed at one end of the clamping transmission assembly (1213), and the other end of the clamping transmission assembly (1213) is fixed to the telescopic end of the clamping driver (1212). The clamping driver (1212) drives the movable clamping plate (1215) to flip and clamp or release the fixed clamping plate (1214).

4. The display module back panel strength testing device according to claim 3, characterized in that, A buffer (1216) is also installed on the base. When the movable clamping plate (1215) and the fixed clamping plate (1214) are in a clamping state, the buffer (1216) performs a buffering action on the movable clamping plate (1215).

5. The display module back panel strength testing device according to claim 4, characterized in that, An elastic element (1217) is installed on the lower end face of the movable clamp (1215).

6. The display module back panel strength testing device according to claim 1, characterized in that, The top-pressing moving unit (31) is a three-axis moving unit, the top-pressing unit (32) is a top rod, and the top rod is installed on the lifting end of the top-pressing moving unit (31).

7. The display module back panel strength testing device according to claim 6, characterized in that, The top-pressing moving unit (31) includes an X-axis top-pressing mover (311), a Y-axis top-pressing mover (312) installed at the movable end of the X-axis top-pressing mover (311), and a Z-axis top-pressing moving assembly installed at the movable end of the Y-axis top-pressing mover (312). The Z-axis top-pressing moving assembly includes a top-pressing mounting plate connected to the movable end of the Y-axis top-pressing mover (312). A force control platform (313) is installed on the upper end of the top-pressing mounting plate. The lifting end of the force control platform (313) is equipped with the top rod through a force sensor.

8. The display module back panel strength testing device according to claim 1, characterized in that, The insertion and moving unit (41) includes an X-axis insertion and moving component (411), a Y-axis insertion and moving component (412) mounted on the movable end of the X-axis insertion and moving component (411), and a Z-axis insertion and moving component (413) mounted on the movable end of the Y-axis insertion and moving component (412). The lifting end of the Z-axis insertion and moving component (413) is equipped with an insertion platform (421) of the insertion unit (42), and an insertion driver (423) is mounted on the insertion platform (421). The driving end of the insertion driver (423) is equipped with a connector (422). The insertion and moving unit (41) is also equipped with a positioning camera (43), and the lens of the positioning camera (43) is set towards the connector (422).

9. The display module back panel strength testing device according to claim 8, characterized in that, The plug-in platform (421) is also equipped with a correction rotation assembly (424), and the plug-in driver (423) is mounted on the rotation shaft of the correction rotation assembly (424); the plug-in platform (421) is also equipped with a distance sensor (44).

10. A testing method using the display module backplane strength testing equipment according to any one of claims 1-9, characterized in that, S1. Place the display module to be tested onto the platform, and the clamping module clamps the three sides of the display module to be tested. S2. The insertion moving unit drives the insertion unit to move and inserts it into the connector of the display module under test; S3. The top pressure moving unit drives the top pressure unit to move and applies pressure to the back panel of the display module under test at multiple points multiple times; S4. The detection module takes pictures of the display module under test for inspection. S5. After the insertion and moving unit moves the insertion unit and separates from the connector of the display module under test, the clamping module is released and the display module under test is unloaded.

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