Liquid crystal display module testing device and testing method

Abstract

This invention discloses a testing device and method for liquid crystal display modules, relating to the field of liquid crystal display module testing technology. The device includes a base, a flipping bracket, a housing, and a testing platform. The testing platform is equipped with a bidirectional clamping device driven by a first motor for automatically clamping the liquid crystal display module for bending resistance testing, and an auxiliary bending mechanism to ensure uniform force distribution. The housing also houses a click-force testing mechanism, including an electric hammer, a pressure sensor, and a displacement sensor, for testing the screen's resistance to click pressure. After testing, debris is automatically removed by a multi-stage cleaning mechanism including a scraper and a spray nozzle. When the testing platform flips, the spray nozzle moves closer to the testing platform to improve the cleaning effect. This invention features a high degree of automation, integrating bending resistance testing and click testing, providing accurate testing and thorough cleaning, effectively improving the efficiency and safety of liquid crystal display module mechanical performance testing.

Description

Technical Field

[0001] This invention relates to the field of liquid crystal display module testing technology, and specifically to a liquid crystal display module testing device and testing method. Background Technology

[0002] LCD display modules require multiple performance tests during production, including bending strength tests and screen click stress tests. Bending strength tests assess the structural reliability of the module under bending loads, while click stress tests simulate the pressure exerted on the screen by a user's finger or stylus during use to determine the pressure at which the screen will crack. Existing testing equipment often uses manual or semi-automatic methods, which have the following shortcomings: uneven clamping force and uneven stress distribution during bending tests lead to large test errors; click tests usually rely on manual pressing, making it difficult to accurately control pressure and record data; and debris remains on the platform after testing, which is inefficient and poses safety hazards due to manual cleaning.

[0003] Furthermore, existing technologies such as CN108761857B primarily target high-temperature resistance testing and cannot meet the automation requirements of bending and click testing. Therefore, a testing device and method for liquid crystal display modules that can automatically complete clamping, bending, click testing, and multi-stage cleaning is needed. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a highly automated, accurate, and integrated testing device and method for testing liquid crystal display modules, featuring multi-level cleaning capabilities.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A liquid crystal display module testing device includes a base, a flip-up bracket on the base, a housing above the flip-up bracket, an operation display module on the housing, a testing platform rotatably connected inside the flip-up bracket, a track on the testing platform, and clamping devices slidably mounted in both sides of the track; the clamping device includes a slide block slidably connected to the testing platform, a rotating block rotatably connected to the slide block, a first torsion spring mounted on the rotating shaft of the rotating block, one end of the first torsion spring connected to the rotating block, and the other end of the first torsion spring connected to the slide block; a clamping seat slidably mounted above the rotating block, and a screw is also provided between the clamping seat and the rotating block; in the unlocked state, the clamping seat and the rotating block can slide relative to each other, and in the locked state, the clamping seat and the rotating block are fixedly connected to limit their relative sliding; a buffer pad is provided inside the clamping seat to buffer the clamping force and prevent damage to the liquid crystal display module; a first screw is provided inside the testing platform, the slide block is threadedly connected to the first screw, a first motor is provided inside the testing platform, a driven gear is provided on the first screw, and a driving gear is provided on the output shaft of the first motor, the driving gear meshing with the driven gear.

[0007] Preferably, an auxiliary bending mechanism is provided below the test platform, including a first pressure rod, a bent rod, a T-shaped push rod, and a protrusion; a first pressure rod is provided below each of the two slide blocks, one end of the first pressure rod is rotatably connected to the test platform, a bottom shell is provided below the test platform, the other end of the first pressure rod is slidably connected to the bent rod, the bent rod is rotatably connected to the bottom shell, a tension spring is connected between the bent rod and the bottom shell, the end of the bent rod away from the first pressure rod is slidably connected to the T-shaped push rod, and a protrusion is connected above the T-shaped push rod.

[0008] Preferably, the test platform has a groove, an embedded support is embedded in the groove, a second pressure rod is rotatably connected in the embedded support, a second torsion spring is sleeved on the shaft of the second pressure rod, one end of the second torsion spring is connected to the second pressure rod, the other end of the second torsion spring is connected to the embedded support, and a pulley is rotatably connected to the end of the second pressure rod.

[0009] Preferably, the test platform is equipped with a scraper cleaning mechanism, including a pull rod, a support plate, a telescopic rod, and a scraper; the pull rod is slidably connected inside the test platform, one end of the pull rod is connected to the support plate, the telescopic rod is connected to the pull rod, the support plate is connected to a soil nail, the soil nail is equipped with a spring, and the scraper has a cavity, with the soil nail and spring located inside the cavity of the scraper.

[0010] Preferably, the housing is provided with a nozzle, the nozzle is provided with multiple nozzles, the nozzle is provided with sliders at both ends, the housing is provided with grooves on both sides, the sliders are provided in the grooves, and the housing is provided with coil springs on both sides, the coil springs are connected to the sliders.

[0011] Preferably, a first telescopic device is rotatably connected to the base, and a connecting rod is rotatably connected to the telescopic rod of the first telescopic device, the connecting rod being connected to the rotating shaft of the test platform.

[0012] Preferably, a turntable is also connected to the rotating shaft of the test platform, a pulley is rotatably connected to the housing, a pull rope is connected to the turntable, and the other end of the pull rope passes around the pulley and is connected to the slider.

[0013] Preferably, the housing also includes a click force testing mechanism for testing the screen's resistance to click pressure. This mechanism includes a second motor, a second screw, a slide bar, a bolt, a second telescopic device, and an electric hammer. The electric hammer integrates a pressure sensor and a displacement sensor, which are electrically connected to the operating display module to monitor the pressure applied to the LCD screen and the electric hammer's displacement in real time. The second motor drives the second screw to rotate, causing the bolt to move along the slide bar, thereby adjusting the electric hammer's horizontal position. The second telescopic device controls the raising and lowering of the electric hammer, allowing it to contact the screen with controllable pressure for the click test.

[0014] The present invention also provides a method for testing liquid crystal display modules, using the above-mentioned apparatus, comprising the following steps:

[0015] S1. Place the LCD module to be tested horizontally on the test platform, align the two sides of the LCD module with the clamp, and power on the LCD module by operating the display module to bring it into normal working state so that the screen changes or electrical performance can be observed during the test.

[0016] S2, Bending Strength Test: Start the first motor, which drives the first screw to rotate, causing the clamping devices on both sides to move inward synchronously at a set speed. The clamps clamp the LCD module and press it inward, causing the LCD module to bend upward. At the same time, the slide presses down the first pressure rod, which drives the protrusion to rise through the bending rod transmission, assisting in lifting the middle of the LCD module from below to achieve uniform force distribution. The operation monitors the LCD module's screen status in real time. When the LCD module cracks, breaks, or the screen becomes abnormal, the first motor stops, the displacement of the slide is recorded, converted into bending arc, and the damage pattern is recorded.

[0017] S3, Screen Click Force Test: Click tests can be performed before or after the bending strength test, depending on the requirements. The second motor is activated, moving the electric hammer to a designated position above the LCD module screen. The second telescopic device extends slowly, bringing the electric hammer into contact with the screen. A pressure sensor monitors the contact pressure in real time, and a displacement sensor records the depth of the electric hammer's downward pressure. When the pressure reaches the set upper limit or the screen breaks, the second telescopic device stops and retracts, recording the maximum withstand pressure and corresponding displacement. Multiple click positions can be set for repeated testing as needed.

[0018] S4. After the test is completed, the pull rod is moved by the telescopic rod, and the scraper scrapes out the residual debris on the test platform.

[0019] S5 sprays high-pressure gas through the nozzle on the nozzle to remove small debris and dust from the test platform;

[0020] S6, activate the first telescopic device, the first telescopic device retracts, and then drives the test platform to flip through the connecting rod. At the same time, the turntable winds the pull rope, the pull rope pulls the slider to move downward, so that the nozzle is close to the tilted test platform. The tilted test platform dumps the debris to the collection point, and the nozzle blows away the residual debris at close range.

[0021] S7. After cleaning, the first telescopic device extends to reset the test platform, and the coil spring pulls the slider and nozzle to reset, waiting for the next test.

[0022] The beneficial effects of this invention are:

[0023] (1) The testing process of this invention is fully automated and highly accurate. The first motor drives the bidirectional clamping device to move inward synchronously, and the auxiliary bending mechanism automatically lifts the middle of the liquid crystal display module, so that the liquid crystal display module is subjected to uniform force, the bending process is controllable, and the test data is accurate and reliable. The clamp is equipped with a buffer pad to avoid damaging the liquid crystal display module and improve test safety. The force testing mechanism integrates a pressure sensor and a displacement sensor to achieve precise pressure control and real-time monitoring, ensuring test repeatability and accuracy.

[0024] (2) The testing device of the present invention is multifunctional. The device has both bending strength testing and screen click force testing functions, which can comprehensively evaluate the mechanical reliability of the liquid crystal display module. The two tests can be performed independently or sequentially, which is flexible in operation, meets various testing needs, and saves equipment costs and floor space.

[0025] (3) The testing device of the present invention integrates functions such as mechanical cleaning by scraper, gas purging by nozzle, and tilting and tilting of the testing platform. It can classify and process residual fragments of different sizes, realize self-cleaning of the testing platform, and greatly improve the continuity and efficiency of testing without manual intervention. The flipping test platform and the nozzle are linked to simplify the driving mechanism and improve the purging effect. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the casing and testing platform structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the clamping device drive structure of the present invention;

[0029] Figure 4 This is a schematic diagram of the auxiliary bending mechanism of the present invention;

[0030] Figure 5 This is a partially enlarged view of the clamping device of the present invention;

[0031] Figure 6 This is a partial enlarged view of the other side of the clamping device of the present invention;

[0032] Figure 7 This is a schematic diagram of the test platform and embedded support structure of the present invention;

[0033] Figure 8 This is a schematic diagram of the internal structure of the embedded support of the present invention;

[0034] Figure 9 This is a schematic diagram of the scraper drive structure of the present invention;

[0035] Figure 10 This is a schematic diagram of the internal structure of the scraper of the present invention;

[0036] Figure 11 This is a schematic diagram of the nozzle and the impact force testing mechanism of the present invention.

[0037] Reference numerals: 100-base, 101-flipping bracket, 102-casing, 103-operation display module, 200-test platform, 201-track, 202-first screw, 203-driven gear, 204-first motor, 205-drive gear, 300-clamping device, 301-slide, 302-rotor, 303-first torsion spring, 304-clamp, 305-screw, 306-buffer pad, 400-first pressure rod, 401-bottom shell, 402-bent rod, 403-tension spring, 404-T-shaped push rod, 405-protrusion, 5 00-Embedded support, 501-Second pressure rod, 502-Second torsion spring, 503-Pulley, 600-Pull rod, 601-Support plate, 602-Telescopic rod, 603-Scraper, 604-Soil nail, 605-Spring, 700-Spray pipe, 701-Spray head, 702-Slider, 703-Coil spring, 704-First telescopic device, 705-Connecting rod, 706-Turntable, 707-Pulley, 708-Pull rope, 800-Second motor, 801-Second screw, 802-Slide rod, 803-Bolt, 804-Second telescopic device, 805-Electric hammer. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0039] like Figures 1 to 11 As shown, the overall structure and working principle of a liquid crystal display module testing device are as follows:

[0040] The LCD module testing device includes a base 100, on which a flip bracket 101 is fixed. The test platform 200 is rotatably connected to the flip bracket 101 via a rotating shaft. The test platform 200 can be flipped around the rotating shaft under the drive of the first telescopic device 704. A housing 102 is mounted above a flip-up bracket 101. The housing 102 is equipped with an operation display module 103 for controlling device operation and displaying test data. The upper surface of the test platform 200 has two parallel tracks 201. A clamping device 300 is slidably installed in each track 201. The clamping device 300 includes a slide block 301, which is slidably connected to the test platform 200. A rotating block 302 is rotatably connected to the slide block 301. A first torsion spring 303 is mounted on the rotating shaft of the rotating block 302. One end of the first torsion spring 303 is connected to the rotating block 302, and the other end is connected to the slide block 301. A clamping seat 304 is slidably mounted above the rotating block 302, and a screw 305 is also provided between the clamping seat 304 and the rotating block 302. When the screw 305 is unlocked, the clamping seat 304 and the rotating block 302 can slide relative to each other. When the screw 305 is locked... In the tightened state, the clamp 304 and the rotating seat 302 are fixedly connected to limit their relative sliding. The sliding adjustment of the positions of the clamps 304 on both sides is to accommodate LCD display modules of different lengths. After adjustment, they can be fixed by tightening the screws 305. The clamp 304 is provided with a buffer pad 306. The test platform 200 is provided with a first screw 202. The slide 301 is threadedly connected to the first screw 202. The test platform 200 is provided with a first motor 204. The first screw 202 is provided with a driven gear 203. The output shaft of the first motor 204 is provided with a driving gear 205. The driving gear 205 meshes with the driven gear 203. The clamping device 300 is driven by the first motor 204 to rotate the first screw 202 through gear transmission, thereby driving the slide 301 to move synchronously inward or outward along the track 201 to realize the clamping and release of the LCD display module. An auxiliary bending mechanism is provided below the test platform 200, including a first pressure rod 400, a bent rod 402, a T-shaped push rod 404, and a protrusion 405. The first pressure rod 400 is located below each of the two slide blocks 301. One end of the first pressure rod 400 is rotatably connected to the test platform 200. A bottom shell 401 is located below the test platform 200. The other end of the first pressure rod 400 is slidably connected to the bent rod 402. The bent rod 402 is rotatably connected to the bottom shell 401. A tension spring 403 is connected between the shells 401. The end of the bent rod 402 away from the first pressure rod 400 is slidably connected to the T-shaped push rod 404. A protrusion 405 is connected above the T-shaped push rod 404. When the slide block 301 moves inward, the first pressure rod 400 is pressed down, and the protrusion 405 is raised through the transmission of the bent rod 402, which lifts the middle part of the liquid crystal display module from below, assisting it to bend upward, so that the liquid crystal display module is subjected to more uniform force and avoids local stress concentration that may cause premature breakage.

[0041] The test platform 200 is also embedded with an embedded support 500. The embedded support 500 is equipped with a rotatable second pressure rod 501. A second torsion spring 502 is sleeved on the rotating shaft of the second pressure rod 501. One end of the second torsion spring 502 is connected to the second pressure rod 501, and the other end of the second torsion spring 502 is connected to the embedded support 500. A pulley 503 is installed at the end of the second pressure rod 501. When it is necessary to remove the display module after testing, one end of the second pressure rod 501 is manually pressed down, and the other end drives the pulley 503 to rise, lifting the edge of the liquid crystal display module for easy removal.

[0042] The testing platform 200 is equipped with a scraper cleaning mechanism, including a pull rod 600, a support plate 601, a telescopic rod 602, and a scraper 603. The pull rod 600 is slidably connected inside the testing platform 200, and one end of the pull rod 600 is connected to the support plate 601. The telescopic rod 602 is located inside the testing platform 200 and is connected to the pull rod 602. A soil nail 604 is connected to the support plate 601, and a spring 605 is installed on the soil nail 604. The scraper 603 has a cavity, and the soil nail 604 and the spring 605 are located inside the cavity of the scraper 603. When the telescopic rod 602 extends, it drives the scraper 603 to move along the surface of the testing platform 200 through the pull rod 600, scraping the debris to one side. The scraper 603 is pressed against the surface of the testing platform 200 by the spring 605 to ensure the scraping effect.

[0043] The housing 102 is equipped with a nozzle 700, on which multiple nozzles 701 are distributed. The two ends of the nozzle 700 are installed in the sliding grooves on the side wall of the housing 102 via sliders 702. The housing 102 is equipped with coil springs 703 on both sides, and the sliders 702 are connected to the coil springs 703. Under normal conditions, the nozzle 700 is located above the test platform 200. When the test platform 200 is flipped, the sliders 702 are pulled down through the linkage of the turntable 706 and the pull rope 708, so that the nozzle 700 is close to the test platform 200 to achieve close-range purging.

[0044] A first telescopic device 704 is rotatably connected to the base 100. The telescopic rod of the first telescopic device 704 is connected to the rotating shaft of the test platform 200 via a connecting rod 705, which is used to drive the test platform 200 to rotate. A turntable 706 is also fixedly connected to the rotating shaft of the test platform 200. A pulley 707 is rotatably connected to the housing 102. A pull rope 708 is wound around the turntable 706. The other end of the pull rope 708 passes around the pulley 707 and is connected to the slider 702. When the first telescopic device 704 retracts and causes the test platform 200 to rotate downward, the turntable 706 rotates accordingly and winds up the pull rope 708, thereby pulling the slider 702 and the nozzle 700 downward, so as to realize the synchronous approach of the nozzle 700 and the test platform 200.

[0045] The housing 102 also includes a click force testing mechanism, comprising a second motor 800, a second screw 801, a slide bar 802, a bolt 803, a second telescopic device 804, and an electric hammer 805. The electric hammer 805 integrates a pressure sensor and a displacement sensor, and is electrically connected to the operation display module 103. The second motor 800 drives the second screw 801 to rotate, causing the bolt 803 to move along the slide bar 802, thereby adjusting the horizontal position of the electric hammer 805. The second telescopic device 804 controls the raising and lowering of the electric hammer 805, allowing it to contact the screen with controllable pressure for click testing. The pressure sensor provides real-time feedback on the pressure value applied to the screen, and the displacement sensor records the depth of the electric hammer 805's downward pressure. When the pressure reaches the set upper limit or the screen is damaged, the second telescopic device 804 automatically retracts, completing one click test.

[0046] Detailed Explanation of Testing Methods and Working Principles

[0047] The following section describes in detail the working principle and testing details of the device of the present invention, using a complete testing procedure.

[0048] I. Test Preparation

[0049] The operator first sets the test parameters through the operation display module 103. For bending tests, the speed of the first motor 204, the target bending angle or the displacement limit of the slide 301, and the data recording method can be set. For click tests, the click position coordinates, loading speed, and pressure limit can be set. Then, the LCD display module to be tested is placed horizontally on the test platform 200, with the two edges of the LCD display module aligned with the clamp 304, and the back of the LCD display module facing downwards. The LCD display module is powered on through the operation display module 103 to put it into normal working condition, so that the screen changes or electrical performance can be observed during the test.

[0050] II. Bending Strength Test

[0051] The first motor 204 is started, and the first motor 204 drives the first screw 202 to rotate through the driving gear 205 and the driven gear 203. The first screw 202 has a bidirectional thread with opposite directions of rotation on both sides, so the two slide blocks 301 move inward synchronously. The moving speed of the slide block 301 is determined by the rotation speed of the first motor 204 to ensure a smooth test process.

[0052] As the clamp 304 gradually contacts the edge of the LCD module, the buffer pad 306 inside the clamp 304 first contacts the LCD module, acting as a buffer to prevent instantaneous impact damage to the LCD module. As the slide 301 continues to move, the clamp 304 applies inward pressure to the LCD module, causing the LCD module to begin to bend upward.

[0053] At the same time, the slide block 301 presses down the first pressure rod 400, which rotates around its axis, and the other end pushes the curved rod 402. The middle part of the curved rod 402 is rotatably connected to the bottom shell 401. Under the action of the first pressure rod 400, the curved rod 402 rotates counterclockwise, and its lower end pushes the T-shaped push rod 404 upward through a sliding connection. The protrusion 405 at the upper end of the T-shaped push rod 404 rises from the opening of the test platform 200 and presses against the lower middle part of the liquid crystal display module, assisting the liquid crystal display module to bend upward. The lifting of the protrusion 405 and the inward pressing of the clamp 304 are carried out synchronously, so that the liquid crystal display module is evenly stressed along the length direction, simulating the bending load that may be subjected to in actual use.

[0054] During the test, the operation display module 103 displays the screen status of the LCD module in real time and monitors the working status of the LCD module through the built-in image acquisition module or electrical detection module. When the LCD module cracks, breaks, or the screen becomes abnormal, the operator can immediately stop the first motor 204 through the operation display module 103, or the system can automatically stop it by detecting a sudden change in current or a pressure sensor signal.

[0055] At this time, the displacement of the slide 301 is recorded by the number of pulses of the first motor 204 or the encoder. Combined with the geometric dimensions of the test platform 200, the bending arc of the LCD module can be calculated. When the slide 301 moves to the set limit position, if the LCD module is still not broken, it will automatically stop and the maximum withstand arc will be recorded.

[0056] III. Screen Click Force Test

[0057] Click tests can be performed before or after the bending test, depending on the needs. Taking the bending test as an example: if the LCD module is not completely broken after the bending test, click tests can still be performed; if it is broken, proceed directly to the cleaning step.

[0058] When the test is initiated, the operation display module 103 shows the current position of the electric hammer 805 and the real-time pressure value. The operator can manually select the click position or start the automatic multi-point test program; the second motor 800 is started, driving the second screw 801 to rotate, so that the bolt 803 moves the second telescopic device 804 and the electric hammer 805 along the slide bar 802 to above the target position; then, the second telescopic device 804 extends slowly, bringing the electric hammer 805 close to the screen; when the pressure sensor detects that the contact pressure reaches the preset initial threshold, the system begins to record pressure and displacement data.

[0059] The second telescopic device 804 continues to extend, and the pressure gradually increases. The operation display module 103 displays the pressure-displacement curve in real time and monitors changes in the screen image; when the pressure reaches the set upper limit or the screen is damaged, the second telescopic device 804 stops extending and immediately retracts, recording the maximum withstand pressure and the corresponding displacement. If the screen is damaged before reaching the pressure upper limit, the pressure value at the time of damage is recorded.

[0060] The above steps can be repeated at different locations on the same screen to obtain multiple data points, depending on the testing requirements. All test data is stored in the operation display module 103 and can be exported for analysis.

[0061] IV. Post-test processing and cleanup

[0062] After the test is completed, the operator manually presses down one end of the second pressure rod 501 on the embedded support 500. The second pressure rod 501 rotates against the elastic force of the second torsion spring 502, and the other end drives the pulley 503 to rise, lifting the edge of the broken LCD display module for easy removal. The rolling design of the pulley 503 can avoid scratching the LCD display module fragments.

[0063] After removing the LCD module, the automatic cleaning program is started. First, the telescopic rod 602 extends, pushing the pull rod 600 and the scraper 603 to move along the surface of the test platform 200, scraping large fragments into the collection groove on one side of the test platform 200. The scraper 603 is kept in contact with the surface of the test platform 200 by the spring 605, so that even if there are small protrusions on the surface of the test platform 200, they can be effectively scraped off.

[0064] Next, the nozzle 701 on the nozzle 700 sprays high-pressure gas to blow away fine debris and dust on the test platform 200. At this time, the first telescopic device 704 retracts, and the connecting rod 705 drives the test platform 200 to rotate downward about 45° around the axis. Simultaneously, the turntable 706 rotates with the axis and winds up the pull rope 708. The pull rope 708 pulls the slider 702 downward through the pulley 707, bringing the nozzle 700 closer to the tilted test platform 200. The nozzle 701 blows the surface of the test platform 200 at close range, and the remaining debris is blown into the collection container below.

[0065] V. Reset

[0066] After cleaning, the first telescopic device 704 extends, pushing the test platform 200 upwards to return to a horizontal position. At the same time, the coil spring 703 pulls the slider 702 and the nozzle 700 upwards to return to their original positions, ready for the next test.

[0067] Test objective

[0068] This device integrates two main functions: bending strength testing and screen click stress testing. The bending test is used to evaluate the structural strength of the LCD module under bending load, providing a basis for product design and material selection. The click test simulates the point pressure that the screen experiences during user operation, helping to determine the screen's pressure resistance limit and preventing breakage due to excessive clicking. Through automated testing processes and precise data recording, it significantly improves testing efficiency and accuracy, while reducing labor costs and safety risks.

Claims

1. A liquid crystal display module testing device, comprising a base (100), characterized in that: The base (100) is provided with a flip bracket (101), and a housing (102) is provided above the flip bracket (101). An operation display module (103) is provided on the housing (102). A test platform (200) is rotatably connected inside the flip bracket (101). A track (201) is provided on the test platform (200). Clamping devices (300) are slidably provided in both sides of the track (201). The clamping device (300) includes a slide (301). The slide (301) is slidably connected to the test platform (200). A rotating seat (302) is rotatably connected to the slide (301). A first torsion spring (303) is provided on the rotating shaft of the rotating seat (302). One end of the first torsion spring (303) is connected to the rotating seat (302), and the other end of the first torsion spring (303) is connected to the slide (301). 2) A clamp (304) is provided on the upper side, and a screw (305) is provided between the clamp (304) and the rotating seat (302). When the screw (305) is unlocked, the clamp (304) and the rotating seat (302) can slide relative to each other. When the screw (305) is locked, the clamp (304) and the rotating seat (302) are fixedly connected to limit the relative sliding between them. A buffer pad (306) is provided inside the clamp (304). A first screw (202) is provided inside the test platform (200). The slide (301) is threadedly connected to the first screw (202). A first motor (204) is provided inside the test platform (200). A driven gear (203) is provided on the first screw (202). A driving gear (205) is provided on the output shaft of the first motor (204). The driving gear (205) meshes with the driven gear (203). An auxiliary bending mechanism is provided below the test platform (200). One end of the first pressure rod (400) is rotatably connected to the test platform (200). A bottom shell (401) is provided below the test platform (200). A bent rod (402) is slidably connected to the other end of the first pressure rod (400). The bent rod (402) is rotatably connected to the bottom shell (401). A tension spring (403) is connected between the bent rod (402) and the bottom shell (401). The end of the bent rod (402) away from the first pressure rod (400) is slidably connected to a T-shaped push rod (404). A protrusion (405) is connected above the T-shaped push rod (404). The test platform (200) is equipped with a scraper cleaning mechanism. A pull rod (600) is slidably connected inside the test platform (200). One end of the pull rod (600) is connected to a support plate (601). A telescopic rod (602) is provided inside the test platform (200). The telescopic rod (602) is connected to the pull rod (600). A soil nail (604) is connected to the support plate (601). A spring (605) is provided on the soil nail (604). A cavity is opened inside the scraper (603). The soil nail (604) and the spring (605) are located inside the cavity of the scraper (603). The housing (102) is also equipped with a click force testing mechanism. The electric hammer (805) is electrically connected to the operation display module (103). The second motor (800) drives the second screw (801) to rotate, so that the bolt (803) moves along the slide bar (802), thereby adjusting the horizontal position of the electric hammer (805). The second telescopic device (804) is used to control the lifting and lowering of the electric hammer (805) so that it contacts the screen with controllable pressure to perform the click test.

2. The liquid crystal display module testing device according to claim 1, characterized in that: The test platform (200) has a groove, and an embedded support (500) is embedded in the groove. A second pressure rod (501) is rotatably connected inside the embedded support (500). A second torsion spring (502) is sleeved on the shaft of the second pressure rod (501). One end of the second torsion spring (502) is connected to the second pressure rod (501), and the other end of the second torsion spring (502) is connected to the embedded support (500). A leather wheel (503) is rotatably connected to the end of the second pressure rod (501).

3. The liquid crystal display module testing device according to claim 1, characterized in that: The housing (102) is equipped with a nozzle (700), and the nozzle (700) is equipped with multiple nozzles (701). The nozzle (700) has sliders (702) at both ends. The housing (102) has grooves on both sides, and the sliders (702) are located in the grooves. The housing (102) has coil springs (703) on both sides, and the coil springs (703) are connected to the sliders (702).

4. The liquid crystal display module testing device according to claim 3, characterized in that: A first telescopic device (704) is rotatably connected to the base (100), and a connecting rod (705) is rotatably connected to the telescopic rod of the first telescopic device (704). The connecting rod (705) is connected to the rotating shaft of the test platform (200).

5. The liquid crystal display module testing device according to claim 4, characterized in that: The test platform (200) is also connected to a turntable (706) on its rotating shaft. A pulley (707) is rotatably connected to the housing (102). A pull rope (708) is connected to the turntable (706). The other end of the pull rope (708) goes around the pulley (707) and connects to the slider (702).

6. A method for testing a liquid crystal display module, using the apparatus described in claim 5, characterized in that: Includes the following steps: S1, Place the LCD module to be tested into the test platform (200) and power on the LCD module; S2, start the first motor (204), the first motor (204) drives the first screw (202) to rotate, causing the clamping devices (300) on both sides to move inward, the clamping seat (304) clamps the liquid crystal display module and squeezes it inward, causing the liquid crystal display module to bend upward, and record the bending arc and damage state when the liquid crystal display module breaks; S3, start the electric hammer force testing mechanism, and move the electric hammer (805) to the designated position above the LCD display module screen through the second motor (800) and the second telescopic device (804), press down at a set speed, and monitor the pressure and displacement in real time through the pressure sensor and displacement sensor. When the pressure reaches the set upper limit or the screen is damaged, stop and record the maximum bearing pressure and corresponding displacement. S4. After the test is completed, the pull rod (600) is moved by the telescopic rod (602), and the scraper (603) scrapes out the residual fragments on the test platform (200); S5, by spraying air through the nozzle (701) on the nozzle (700), removes small debris from the test platform (200); S6, the first telescopic device (704) is activated. The first telescopic device (704) retracts and then drives the test platform (200) to flip through the connecting rod (705). At the same time, the turntable (706) winds the pull rope (708). The pull rope (708) pulls the slider (702) downward, so that the nozzle (700) is close to the test platform (200). The tilted test platform (200) dumps the fragments to the collection point.

7. The liquid crystal display module testing method according to claim 6, characterized in that: In step S2, when the slide (301) moves inward, it presses the first pressure rod (400), the first pressure rod (400) moves the bent rod (402) to rotate, the bent rod (402) pushes the T-shaped push rod (404) to move upward, and the T-shaped push rod (404) pushes the protrusion (405) to push the liquid crystal display module upward, thereby achieving assisted bending.

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