A display module detection device

Abstract

The present invention discloses a detection device for a display screen module, which relates to the technical field of display screen module detection. The device includes a detection table, on which a laser detection module is provided. The laser detection module includes a laser confocal microscope unit that performs rotational and translational movements, and a pressing module is arranged at the side end of the laser detection module. The pressing module includes a pressing member that has vertical movement and self-rotation, and a pressing tool assembly arranged at the side end of the pressing member. Below the pressing member is a pressing station; the pressing module can automatically adjust the pressing head to the pressing station as needed, saving the time for replacing the pressing head. After the pressing member adjusts the position of the pressing head at the detection station, the pressing tool assembly rotates to perform an arc-shaped scratch test on the display screen module, making the test diversified, and capable of providing data for scratch and friction tests in different ways. By different data, the accuracy of the entire test is increased, and the test efficiency and accuracy are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of display module detection, and particularly relates to a display module detection device. Background Art

[0002] Indentation detection of the display module is to ensure that when the display screen is subjected to external forces, it can prevent the ultrasonic sensor from causing indentation damage to the display screen, thereby protecting the integrity and use effect of the display screen. This detection not only involves the physical protection of the display module, but also relates to the long-term use stability and user experience of the display screen.

[0003] In the Chinese patent with the publication number CN207502853U, a liquid crystal display double-switching scratch detection device is disclosed. In this patent, when the display screen is subjected to a scratch test, its test end needs to move horizontally for scratch detection. However, the detection content of the display module also includes indentation detection and friction detection. The test end corresponds to pressing parts of different shapes, and due to different test driving processes, it also corresponds to different detection instruments. When different types of detections are required for the display module, different detection devices need to be replaced, and the display module is moved back and forth, resulting in a complicated detection process and affecting the detection efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a display module detection device, which has the advantages of being able to automatically adjust the indenter to the extrusion station as needed, saving the time for replacing the indenter, being able to provide data for different types of scratch and friction tests, increasing the accuracy of the entire test through different data, and improving the test efficiency and accuracy.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A display module detection device, including a detection table, on which a laser detection module is provided. The laser detection module includes a laser confocal microscope unit that performs rotational and translational movements. The laser confocal microscope unit is connected to a display for displaying a detection image;

[0006] A loading fixture, whose bottom end is arranged on the tabletop of the detection table through a two-axis moving platform, and the loading fixture moves horizontally and longitudinally on the same horizontal plane;

[0007] An extrusion module, arranged at the side end of the laser detection module, includes an extrusion member with vertical movement and self-rotation, and a pressing tool assembly arranged at the side end of the extrusion member. Below the extrusion member is an extrusion station;

[0008] The pressing tool assembly moves vertically and can rotate self. The pressing tool assembly includes a plurality of indenters arranged in a circular array, and each indenter corresponds to a different detection mode. When the pressing tool assembly rotates self, each indenter can coincide with the extrusion station.

[0009] Furthermore, both the laser detection module and the extrusion module are installed on the detection table through the same assembly bracket, and a driver for driving the vertical movement of the assembly bracket is provided on the detection table.

[0010] Furthermore, a driving mechanism for driving the up-and-down movement and rotation of the extrusion member is connected to the upper end of the extrusion member. The driving mechanism includes a moving collar connected to the extrusion member. The bottom end of the extrusion member is inserted and clamped with the upper end of the pressure head. A limiting sleeve is sleeved outside the driving mechanism. A first limiting groove and a second limiting groove are provided on the limiting sleeve. An adjusting sleeve is sleeved outside the limiting sleeve. A strip groove is provided on the inner wall of the adjusting sleeve. A limiting post that can be telescoped and is inserted into the first limiting groove is provided in the moving collar.

[0011] Furthermore, a rotating collar is butted against the bottom end of the limiting sleeve. The outer bottom end of the rotating collar is connected to the assembly bracket through a ratchet assembly. A linkage groove is provided on the rotating collar. An annular plate is provided on the outer wall of the bottom end of the lead screw. A linkage ring plate is elastically provided on the annular plate. A plurality of circular bumps that are clamped with the bottom end of the moving collar are provided on the upper end surface of the linkage ring plate.

[0012] Furthermore, the press tool assembly further includes a plurality of limiting rings corresponding to the number of the pressure heads and inserted and installed with the pressure heads, and a driving rod for installing the plurality of limiting rings. The driving rod is connected to the adjusting sleeve by a gear transmission. An annular pressing plate is connected to the upper end of the pressure head. The inner wall of the bottom end of the limiting ring is elastically connected to the annular pressing plate.

[0013] Furthermore, the shape of the pressing end of the pressure head includes, but is not limited to, a conical shape, a flat head, a spherical shape, and a wedge shape.

[0014] Furthermore, an annular limiting groove is provided on the inner wall of the limiting ring. Two vertical sliding grooves are provided on the annular limiting groove. A clamping post that is clamped with the annular limiting groove is provided on the outer wall of the annular pressing plate.

[0015] Furthermore, a cleaning component is provided at the side end of the laser detection module. The cleaning component includes an annular cleaning member that is inclined. A circular mounting plate is connected to the center of the annular cleaning member. A rotating shaft is mounted at the center of the mounting plate. An upper end of the rotating shaft is connected to a mounting seat connected to the assembly bracket. An adsorbing member is coated on the outer wall of the annular cleaning member.

[0016] Furthermore, the annular cleaning member is a ring whose surface is annularly coated with cleaning sponge. The upper end of the rotating shaft is connected to the mounting seat through a ratchet and a pawl. The inclination angle of the annular cleaning member matches the rotation trajectory of the laser confocal microscope unit.

[0017] Furthermore, the adsorption member includes an adsorption seat, in which an arc-shaped hole for the annular cleaning member to penetrate is provided, and an adsorption ring is provided inside the arc-shaped hole, and the adsorption ring is connected to the fan through an air pipe.

[0018] Technical effects and advantages of the present invention:

[0019] 1. The extrusion module of the present invention can automatically adjust the pressure head to the extrusion station as needed, saving the time of replacing the pressure head and improving the detection efficiency. The extrusion component can not only drive the pressure head to press down for indentation detection, but also drive the pressure head at the detection station to rotate independently to perform rotational friction detection on the display screen module. The display screen module can also be driven to move through a loading fixture to perform unidirectional friction or scratch detection. After the extrusion component can adjust the position of the pressure head at the detection station, the press assembly is rotated to perform arc scratch test on the display screen module, which diversifies the test and can provide data of scratch and friction tests in different ways. The accuracy of the entire test is increased through different data, thereby improving the test efficiency and accuracy.

[0020] 2. The cleaning component of the present invention wipes and cleans the lens of the laser confocal microscope unit when it rotates, and when the laser confocal microscope unit rotates to a point where it does not affect the movement of the loading fixture, its lens is pressed onto the cleaning component to reduce dust adhesion, thereby achieving the effect of cleaning the laser confocal microscope unit as it rotates, and improving the clarity of the detection image. The annular cleaning piece is adsorbed and cleaned by the adsorption ring, so that the surface of the annular cleaning piece that is rotated out of the arc hole of the adsorption seat is in a clean state, which is convenient for the next contact with the laser confocal microscope unit lens, thereby improving the wiping cleanliness. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the laser detection module of the present invention;

[0023] Figure 3 It is a side view of the extrusion die structure of the present invention;

[0024] Figure 4 A half-section diagram of the driving mechanism structure of the present invention;

[0025] Figure 5 It is a schematic diagram of the driving mechanism structure of the present invention;

[0026] Figure 6 A bottom perspective view of the extrusion member and the press assembly structure of the present invention;

[0027] Figure 7 A partial cross-sectional view of the structure of the press tool assembly of the present invention;

[0028] Figure 8 For the present invention Figure 7 Enlarged view of location A in the present invention;

[0029] Figure 9 Schematic diagram of the overall structure of the second embodiment of the present invention;

[0030] Figure 10 Schematic diagram of the cleaning component structure of the present invention;

[0031] Figure 11 Side view of the cleaning component of the present invention.

[0032] In the figure:

[0033] 1. Detection table; 11. Assembly bracket; 2. Laser detection module; 21. Laser confocal microscope unit; 3. Loading fixture; 4. Extrusion module; 41. Extrusion piece; 411. Insertion ring seat; 412. Clamping plate; 42. Pressing tool assembly; 421. Pressing head; 4211. Ring-shaped pressing plate; 4212. Inner clamping plate; 4213. Clamping post; 422. Limiting ring; 4221. Return spring; 4222. Ring-shaped limiting groove; 423. Driving rod; 4231. Driving gear; 43. Driving mechanism; 431. Lead screw; 4311. Linking ring plate; 432. Moving collar; 4321. Limiting post; 433. Limiting sleeve; 4331. Second limiting groove; 434. First limiting groove; 435. Adjusting sleeve; 4351. Strip-shaped groove; 4352. Linking gear; 436. Rotating collar; 4361. Linking groove; 5. Cleaning component; 51. Ring-shaped cleaning piece; 52. Mounting plate; 53. Rotating shaft; 54. Mounting seat; 55. Adsorbing component; 551. Adsorbing seat; 552. Arc-shaped hole. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] To better understand a display module detection device provided in this embodiment, a brief introduction to the existing indentation detection of display modules will be given first. To solve the problem that different types of detection equipment need to be replaced when different types of detections are required for display modules in the prior art, pressing tools of different shapes are now provided. There is no need to replace the instrument or move the display module to be detected. When different types of detections are required, only the pressing tool needs to be replaced. However, since scratch detection and friction detection require relative movement between the display module and the pressing tool to perform the detection, in the prior art, most detections are achieved by the one-way reciprocating movement of the display module to be detected. However, only one-way sliding detection can be performed, resulting in monotonous detection, and the replacement of the pressing tool back and forth is relatively cumbersome. The present specification aims to solve the above technical problems.

[0036] An embodiment of the present application provides a display module detection device. The extrusion module 4 can automatically adjust the indenter 421 to the extrusion station as needed, saving the time for replacing the indenter 421 and improving the detection efficiency. Moreover, the extrusion member 41 can not only drive the indenter 421 to press down for indentation detection, but also drive the indenter 421 at the detection station to rotate independently to perform rotational friction detection on the display module. It can also drive the display module to move through the loading fixture 3 for one-way friction or scratch detection. After the extrusion member 41 adjusts the position of the indenter 421 at the detection station, the pressing tool assembly 42 rotates to perform an arc scratch test on the display module, making the test diversified. It can provide data for different ways of scratch and friction tests, and increase the accuracy of the entire test through different data, improving the test efficiency and precision.

[0037] Embodiment 1: Refer to Figure 1 - Figure 9, which is the first embodiment of the present invention, provides a display module detection device, including a detection table 1. A laser detection module 2 is arranged on the detection table 1. The laser detection module 2 includes a laser confocal microscope unit 21 that performs rotational and translational movements. The laser confocal microscope unit 21 is connected to a display for displaying a detection screen. The laser confocal microscope unit 21 allows not only an image of an object area to be displayed on the display of the display module, but also additional information, specifically, for example, pressure data of an indentation test, scratching data of a scratch test, the number of friction cycles of a friction test, and sliding data during sliding friction. In the image processing and control device within the display module, this information is combined by being electronically mixed with the image of the object area captured by means of the laser confocal microscope unit 21. The laser in the laser confocal microscope unit 21 is used as a scanning light source, and imaging is achieved through rapid point-by-point, line-by-line, and surface-by-surface scanning. This microscope utilizes the characteristics of a short wavelength and a thin light beam of the laser beam to achieve high-resolution imaging. The laser confocal microscope unit 21 includes but is not limited to three detection heads. When the detection head rotates to a vertical state, the area below its detection mirror is the detection station. A loading fixture 3 has its bottom end arranged on the tabletop of the detection table 1 through a two-axis moving platform. The loading fixture 3 moves horizontally and longitudinally on the same horizontal plane. The loading fixture 3 first moves the clamped display module horizontally to below the detection station. The laser confocal microscope unit 21 moves down to adjust the detection distance and detects whether the display module is damaged in the initial state to ensure that the display module before detection is in a normal state to ensure the accuracy of the detection. When indentation detection is required, the laser confocal microscope unit 21 needs to be rotated to avoid the loading fixture 3 colliding with the laser confocal microscope unit 21 when the laser confocal microscope unit 21 is in a vertical state.

[0038] The extrusion module 4 is arranged at the side end of the laser detection module 2 and includes an extrusion member 41 capable of vertical movement and self-rotation, and a pressing tool assembly 42 arranged at the side end of the extrusion member 41. Below the extrusion member 41 is an extrusion station. The pressing tool assembly 42 can move vertically and rotate. The pressing tool assembly 42 includes a plurality of pressing heads 421 arranged in a circular array, and each pressing head 421 corresponds to a different detection mode. When the pressing tool assembly 42 rotates, each pressing head 421 can coincide with the extrusion station. The extrusion module 4 can automatically adjust the pressing head 421 to the extrusion station as needed, saving the time for replacing the pressing head 421 and improving the detection efficiency. Moreover, the extrusion member 41 can not only drive the pressing head 421 to press down for indentation detection, but also drive the pressing head 421 at the detection station to rotate independently for rotational friction detection of the display module. It can also drive the display module to move through the loading fixture 3 for one-way friction or scratch detection. After the extrusion member 41 adjusts the position of the pressing head 421 at the detection station, the pressing tool assembly 42 rotates to perform an arc scratch test on the display module, making the test diversified, capable of providing data for different ways of scratch and friction tests, and increasing the accuracy of the entire test through different data, improving the test efficiency and precision.

[0039] Both the laser detection module 2 and the extrusion module 4 are installed on the detection table 1 through the same assembly bracket 11, and a driver for driving the assembly bracket 11 to move vertically is arranged on the detection table 1. The laser detection module 2 and the extrusion module 4 can move up or down integrally through the assembly bracket 11 to adjust the overall structural position.

[0040] An insertion ring seat 411 is arranged at the bottom end of the extrusion member 41. The outer wall of the insertion ring seat 411 is annularly arrayed with engaging plates 412. The upper end of the extrusion member 41 is connected with a driving mechanism 43. The driving mechanism 43 can be a lead screw 431 connected to a motor or a threaded rod. A moving collar 432 connected to the extrusion member 41 is sleeved on the lead screw 431. A limiting sleeve 433 is sleeved outside the lead screw 431. A first limiting groove 434 penetrating the tube wall is opened on the limiting sleeve 433. The motor drives the lead screw 431 to rotate to drive the moving collar 432 to move on the lead screw 431, thereby driving the extrusion member 41 to press down.

[0041] A second limiting groove 4331 is opened on the inner wall of the limiting sleeve 433. The second limiting groove 4331 does not penetrate the tube wall of the limiting sleeve 433. An adjusting sleeve 435 is sleeved on the surface of the limiting sleeve 433 through a bearing. At least one strip-shaped groove 4351 for limiting is opened on the inner wall of the adjusting sleeve 435. The number of strip-shaped grooves 4351 corresponds to the pressing heads 421 for flat pressing for indentation detection. When the pressing head 421 for indentation detection rotates to the extrusion station, the adjusting sleeve 435 rotates simultaneously to rotate the corresponding strip-shaped groove 4351 to coincide with the first limiting groove 434 to adjust the driving track of the extrusion member 41.

[0042] A telescopic limit post 4321 is provided inside the movable collar 432. In the initial state, one end of the limit post 4321 is inserted and arranged in the first limit groove 434. The bottom end of the limit sleeve 433 is connected with a rotating collar 436. The outer side of the bottom end of the rotating collar 436 is connected with the assembly bracket 11 through a ratchet assembly. A linkage groove 4361 corresponding to the first limit groove 434 is formed on the rotating collar 436. The bottom end of the adjusting sleeve 435 is sleeved on the outer side of the rotating collar 436. A linkage gear 4352 is sleeved on the upper end of the adjusting sleeve 435. An annular plate is arranged on the outer wall of the bottom end of the lead screw 431. A linkage ring plate 4311 is elastically arranged on the annular plate. A plurality of circular bumps are arranged on the upper end surface of the linkage ring plate 4311. The inner wall of the linkage ring plate 4311 is connected with a slider. A chute for the slider to slide is formed on the lead screw 431. An arc groove corresponding to the circular bumps is formed at the bottom end of the movable collar 432. When the movable collar 432 moves to the bottom end and contacts the linkage ring plate 4311, the circular bumps are aligned with the arc groove at the bottom end of the movable collar 432, and the lead screw 431 can drive the movable collar 432 to rotate. The driving mechanism 43 can adjust different driving modes according to the detection type of the display module, so as to improve the detection convenience.

[0043] The press tool assembly 42 further includes a plurality of limit rings 422 corresponding to the number of the pressing heads 421, and a driving rod 423 for installing the plurality of limit rings 422. A driving gear 4231 with the same size as and meshing with the linkage gear 4352 is sleeved on the driving rod 423. The top end of the driving rod 423 is connected with a driving part. An annular pressing plate 4211 is connected to the upper end of the pressing head 421. The upper end of the pressing head 421 and the annular pressing plate 4211 are both inserted and arranged in the corresponding limit rings 422. A return spring 4221 is arranged in the limit ring 422. The upper end of the return spring 4221 is butted against the lower end surface of the annular pressing plate 4211. The driving part can drive the driving rod 423 and a plurality of limit rings 422 connected with the driving rod 423 to rotate, correspondingly driving a plurality of pressing heads 421 to rotate. It is applied to align different types of pressing heads 421 with the extrusion station to realize the replacement of the pressing heads 421, and by rotating the driving rod 423, the driving mode of the driving mechanism 43 can also be correspondingly adjusted according to different types of detections.

[0044] The upper end of the indenter 421 is connected with an annular pressing plate 4211, and the upper end of the indenter 421 and the annular pressing plate 4211 are both inserted into the corresponding limiting ring 422. A reset spring 4221 is arranged in the limiting ring 422. The upper end of the reset spring 4221 is butted against the lower end face of the annular pressing plate 4211. The limiting ring 422 is used for limiting the movement of the indenter 421. When the squeezing part 41 squeezes the indenter 421, the indenter 421 moves in the limiting ring 422, so that the indenter 421 at the squeezing station presses down and contacts the display module. The indentation test is carried out by the independent downward movement of the indenter 421 at the squeezing station, avoiding the downward movement of the whole pressing tool assembly 42. And when the squeezing part 41 resets, the reset spring 4221 can drive the indenter 421 to reset. By the independent downward movement of the indenter 421 at the squeezing station and the rotation of the pressing tool assembly 42, it effectively avoids the contact between other indenters 421 and the fixture or the display module during the rotation process, resulting in mutual damage.

[0045] The shape of the pressing end of the indenter 421 includes but is not limited to a conical shape, a flat head, a spherical shape and a wedge shape. A notch for inserting the inserting ring seat 411 is formed on the annular pressing plate 4211 at the top end of the indenter 421, and inner clamping plates 4212 corresponding to the clamping plates 412 are arrayed on the inner wall of the notch. When the squeezing part 41 presses down, the inserting ring seat 411 at its bottom end is inserted into the notch formed at the upper end of the annular pressing plate 4211. After insertion, the clamping plates 412 on the outer wall of the inserting ring seat 411 are inserted into the inner clamping plates 4212 in a staggered manner, so that when the squeezing part 41 rotates, it can drive the annular pressing plate 4211 and the indenter 421 to rotate.

[0046] An annular limiting groove 4222 is formed on the inner wall of the limiting ring 422, and two vertical sliding grooves are formed on the annular limiting groove 4222. A clamping column 4213 for clamping with the annular limiting groove 4222 is arranged on the outer wall of the annular pressing plate 4211. When the annular pressing plate 4211 and the indenter 421 move downward, the clamping column 4213 on the outer wall of the annular pressing plate 4211 moves in the vertical sliding groove. When it is necessary to lock and limit the indenter 421 that has moved down to the bottom end, by rotating the annular pressing plate 4211, the clamping column 4213 is screwed into the annular limiting groove 4222, and the indenter 421 after downward movement can be limited and locked.

[0047] Specifically, the detection of the display module is divided into three cases, including indentation detection, scratch detection and friction detection;

[0048] When performing indentation detection, the indenter 421 corresponding to the indentation detection is rotated to the extrusion station. When the driving rod 423 rotates, through the engagement of the driving gear 4231 and the linkage gear 4352, the adjustment sleeve 435 is driven to rotate simultaneously, and the strip-shaped groove 4351 corresponding to the indenter 421 for indentation detection is rotated to coincide with the first limit groove 434. The moving collar 432 moves on the lead screw 431 to drive the extrusion member 41 to press down. When the moving collar 432 moves, the limit post 4321 is ejected and inserted into the strip-shaped groove 4351, and the strip-shaped groove 4351 limits the limit post 4321, so that the lead screw 431 can only drive the extrusion member 41 to press down, thereby driving the annular pressing plate 4211 and the indenter 421 to press down in the limit ring 422. The indenter 421 performs indentation detection on the display module to be detected below the extrusion station. After extrusion, the extrusion member 41 resets, and the annular pressing plate 4211 and the indenter 421 reset under the action of the return spring 4221 and do not contact the display module. The display module moves to below the laser detection module 2 for detection;

[0049] During scratch detection, the pressure head 421 corresponding to the scratch detection is rotated to the extrusion station, and the strip groove 4351 on the inner wall of the adjustment sleeve 435 is rotated and moved away to stagger with the first limit groove 434. At this time, there are two scratch detection adjustments. The first is that the pressure head 421 does not move, and the clamp and the display screen module move, and the extrusion member 41 presses down to drive the bottom end of the pressure head 421 to contact the display screen module, and the display screen module moves to realize the horizontal plane linear movement for scratch detection. The other is that the display screen module does not move, and the pressure head 421 rotates for detection. The movable ring 432 moves on the screw rod 431 and drives the extrusion member 41 to press down. When the movable ring 432 moves, the limiting column 4321 moves in the first limiting groove 434. When the movable ring 432 moves downward, the limiting column 4321 enters the linkage groove 4361 of the rotating ring 436. At this time, the lower end of the extrusion member 41 is engaged with the annular pressure plate 4211. The clamping column 4213 on the outer wall of the annular pressure plate 4211 is limited by the vertical sliding groove. The movable ring 432 can only move downward and cannot rotate. When the extrusion member 41 presses downward and drives the bottom end of the pressure head 421 When in contact with the display screen module, the clamping column 4213 moves into the annular limiting groove 4222. At this time, the bottom end of the movable ring 432 is locked with the circular convex point on the upper end surface of the linkage ring plate 4311. The screw rod 431 rotates to drive the movable ring 432 to rotate 30°, and then drives the rotating ring 436 and the extrusion member 41 to rotate 30° together, so that the linkage groove 4361 on the rotating ring 436 is aligned with the second limiting groove 4331. The extrusion member 41 rotates 30° to drive the annular pressing plate 4211 and the pressure head 421 to rotate, and the clamping column 4 213 is screwed from the vertical slide groove into the annular limiting groove 4222, so that the downwardly moved pressing head 421 can be limited and locked. At this time, the screw rod 431 rotates in the opposite direction, and the movable collar 432 cannot rotate under the limiting action of the ratchet assembly. The limiting column 4321 of the movable collar 432 is limited, so that the movable collar 432 moves upward along the screw rod 431, and the movable collar 432 drives the extrusion piece 41 to move upward and reset. At this time, the pressing tool assembly 42 reciprocates as a whole, and the pressing head 421 can perform an arc scratch test on the display screen module;

[0050] When performing friction detection, the indenter 421 corresponding to the friction detection is rotated to the extrusion station. At this time, there are two types of friction detection adjustments. The first is that the indenter 421 remains stationary, the fixture and the display module move, the extrusion part 41 presses down, driving the bottom end of the indenter 421 to contact the display module, and the display module moves to achieve linear movement on the horizontal plane for friction detection. The other is that the display module remains stationary, the moving collar 432 moves on the lead screw 431 to drive the extrusion part 41 to press down. When the moving collar 432 moves, the limit post 4321 moves in the first limit groove 434. When the moving collar 432 moves downward so that the limit post 4321 enters the linkage groove 4361 of the rotating collar 436, at this time, the lower end of the extrusion part 41 is engaged with the annular pressing plate 4211. The clamping post 4213 on the outer wall of the annular pressing plate 4211 is limited by the vertical chute, and the moving collar 432 can only move downward and cannot rotate. When the extrusion part 41 presses down to drive the bottom end of the indenter 421 to contact the display module, the clamping post 4213 moves into the annular limit groove 4222. At this time, the bottom end of the moving collar 432 is stuck with the circular protrusion on the upper end surface of the linkage ring plate 4311. The extrusion part 41 presses down to drive the bottom end of the indenter 421 to contact the display module, and the lead screw 431 rotates to drive the moving collar 432 to rotate, then drives the rotating collar 436 and the extrusion part 41 to rotate together, so that the linkage groove 4361 on the rotating collar 436 is aligned with the second limit groove 4331. The extrusion part 41 rotates to drive the annular pressing plate 4211 and the indenter 421 to rotate, and the indenter 421 rotates to perform a rotational friction test on the display module.

[0051] Embodiment 2: Refer to Figure 9 - Figure 11 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment. During the implementation of the first embodiment, it was found that after each detection is completed, the laser detection module 2 needs to perform image detection, and when the loading fixture 3 drives the clamped display module to move, the laser confocal microscope unit 21 needs to be rotated so that it is not in a vertical state. During the detection, the indenter 421 needs to scratch or rub against the display module, and dust and impurities are easily generated during the process. Moreover, by moving the loading fixture 3 or rotating the pressing tool assembly 42, the floating dust is dispersed, resulting in the lens of the laser confocal microscope unit 21 being easily adhered with floating dust and impurities, affecting the detection efficiency.

[0052] To solve the above problems, in this embodiment, a cleaning component 5 is provided which is movably attached to the lens of the laser confocal microscope unit 21. When the laser confocal microscope unit 21 rotates, both its lens surface and the cylinder mounted on the lens surface come into contact with the cleaning component 5. The cleaning component 5 wipes and cleans the lens of the laser confocal microscope unit 21 when it rotates. When the laser confocal microscope unit 21 rotates to a position where it does not affect the movement of the loading fixture 3, its lens presses on the cleaning component 5, reducing dust adhesion and achieving the effect of cleaning the laser confocal microscope unit 21 as it rotates, thereby improving the clarity of the detected image presentation.

[0053] A cleaning component 5 is provided at the side end of the laser detection module 2. The cleaning component 5 includes an annular cleaning member 51 disposed obliquely. A circular mounting plate 52 is connected to the center of the annular cleaning member 51. A rotating shaft 53 is mounted at the center of the mounting plate 52. The upper end of the rotating shaft 53 is connected to a mounting seat 54 connected to the assembly bracket 11. An adsorbent 55 is disposed on the outer wall of the annular cleaning member 51. The annular cleaning member 51 is a ring with a cleaning sponge annularly wrapped on its surface, and a lens cleaning paper is wrapped on the surface of the cleaning sponge. When the laser confocal microscope unit 21 rotates, both the lens surface of its detection end and the cylinder mounted on the lens surface come into contact with the lens cleaning paper on the surface of the cleaning sponge. The frictional force generated by the rotation of the cylinder mounted on the lens surface drives the annular cleaning member 51 to rotate. The upper end of the rotating shaft 53 is connected to the mounting seat 54 through a ratchet and a pawl. The inclination angle of the annular cleaning member 51 matches the rotation trajectory of the laser confocal microscope unit 21. The adsorbent 55 includes an adsorption seat 551. An arc-shaped hole 552 for the annular cleaning member 51 to penetrate is provided in the adsorption seat 551. An adsorption ring is provided inside the arc-shaped hole 552. The adsorption ring is connected to a blower through an air pipe. When the laser confocal microscope unit 21 rotates, the frictional force between it and the surface of the annular cleaning member 51 can drive the annular cleaning member 51 to rotate around the rotating shaft 53. When the laser confocal microscope unit 21 rotates clockwise, it can drive the annular cleaning member 51 to rotate counterclockwise. Due to the influence of the ratchet and the pawl on the rotating shaft 53, it can only rotate counterclockwise. When the laser confocal microscope unit 21 rotates counterclockwise, it only presses and contacts the annular cleaning member 51 and does not drive it to rotate clockwise. When the annular cleaning member 51 rotates to wipe the lens of the laser confocal microscope unit 21, the dust and impurities wiped away are transferred away as the annular cleaning member 51 rotates and enter the arc-shaped hole 552 of the adsorption seat 551. The adsorption ring adsorbs and cleans the annular cleaning member 51, making the surface of the annular cleaning member 51 that rotates out of the arc-shaped hole 552 of the adsorption seat 551 in a clean state, facilitating contact with the lens of the laser confocal microscope unit 21 next time and improving the wiping cleanliness.

[0054] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A display screen module detection device, comprising a detection platform (1), characterized in that: The detection platform (1) is provided with a laser detection module (2), the laser detection module (2) comprising a laser confocal microscope unit (21) that performs rotational and translational motions, the laser confocal microscope unit (21) being connected to a display for displaying a detection picture; A loading fixture (3), the bottom end of which is arranged on the surface of the detection table (1) via a two-axis movable platform, and the loading fixture (3) moves horizontally and vertically on the same horizontal plane; An extrusion module (4) is arranged at a side end of the laser detection module (2), comprising an extrusion member (41) capable of vertical movement and rotation, and a pressing tool assembly (42) arranged at a side end of the extrusion member (41), and an extrusion station is located below the extrusion member (41); The press assembly (42) moves in a vertical direction and can rotate, the press assembly (42) comprises a plurality of press heads (421) in an annular array, and each of the press heads (421) can overlap with an extrusion station when the press assembly (42) rotates; The upper end of the extrusion piece (41) is connected to a driving mechanism (43) for driving the extrusion piece (41) to move up and down and rotate. The driving mechanism (43) comprises a movable collar (432) connected to the extrusion piece (41). The bottom end of the extrusion piece (41) is plugged and clamped with the upper end of the pressure head (421). The outer side of the driving mechanism (43) is covered with a limiting sleeve (433). The limiting sleeve (433) is provided with a first limiting groove (434) and a second limiting groove (4331). The outer side of the limiting sleeve (433) is covered with an adjusting sleeve (435). The inner wall of the adjusting sleeve (435) is provided with a strip groove (435). 1), a limit column (4321) which can be extended and inserted into a first limit groove (434) is arranged in the movable ring (432), a rotating ring (436) is connected to the bottom end of the limit sleeve (433), the outer side of the bottom end of the rotating ring (436) is connected to the assembly bracket (11) through a ratchet assembly, a linkage groove (4361) is opened on the rotating ring (436), an annular plate is arranged on the outer wall of the bottom end of the screw rod (431), a linkage ring plate (4311) is elastically arranged on the annular plate, and a plurality of circular protrusions (4311) are arranged on the upper end surface of the linkage ring plate (4311) to engage with the bottom end of the movable ring (432).

2. A display screen module detection device according to claim 1, characterized in that: The laser detection module (2) and the extrusion module (4) are both mounted on the detection platform (1) via the same assembly bracket (11), and a driver for driving the assembly bracket (11) to move vertically is provided on the detection platform (1).

3. A display screen module detection device according to claim 2, characterized in that: The press assembly (42) further comprises a plurality of limit rings (422) corresponding in number to the press heads (421) and inserted and installed with the press heads (421), and a driving rod (423) used for installing the plurality of limit rings (422); the driving rod (423) and the adjustment sleeve (435) are connected by a gear transmission; the upper end of the press head (421) is connected to an annular pressing plate (4211); and the inner wall of the bottom end of the limit ring (422) is elastically connected to the annular pressing plate (4211).

4. A display screen module detection device according to claim 3, characterized in that: The shape of the pressing end of the pressing head (421) includes, but is not limited to, a cone, a flat head, a sphere, and a wedge.

5. A display screen module detection device according to claim 4, characterized in that: The inner wall of the limiting ring (422) is provided with an annular limiting groove (4222), and two vertical sliding grooves are provided on the annular limiting groove (4222). The outer wall of the annular pressure plate (4211) is provided with a clamping column (4213) clamped with the annular limiting groove (4222).

6. A display screen module detection device according to claim 5, characterized in that: A cleaning assembly (5) is provided at the side end of the laser detection module (2), the cleaning assembly (5) comprising an inclined annular cleaning member (51), a circular mounting plate (52) being connected at the center of the annular cleaning member (51), a rotating shaft (53) being mounted at the center of the mounting plate (52), a mounting seat (54) being connected to the assembly bracket (11) at the upper end of the rotating shaft (53), and an adsorption member (55) being provided on the outer wall of the annular cleaning member (51) being covered.

7. A display screen module detection device according to claim 6, characterized in that: The annular cleaning member (51) is a ring whose surface is annularly coated with a cleaning sponge. The upper end of the rotating shaft (53) is connected to the mounting seat (54) via a ratchet and a pawl. The inclination angle of the annular cleaning member (51) matches the rotation trajectory of the laser confocal microscope unit (21).

8. A display screen module detection device according to claim 7, characterized in that: The adsorption member (55) comprises an adsorption seat (551), wherein an arc-shaped hole (552) for the annular cleaning member (51) to penetrate is provided in the adsorption seat (551), an adsorption ring is provided inside the arc-shaped hole, and the adsorption ring is connected to the fan via an air pipe.

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