Display screen testing tool

Abstract

The invention discloses a display screen testing tool, and belongs to the technical field of display screen production. According to the display screen testing tool, the first carrying table, the first groove and the second groove are all located on the top surface of the base, so that the first sealing cavity, the first adsorption structure communicated with the first sealing cavity, the second sealing cavity and the second adsorption structure communicated with the second sealing cavity are all located on the top surface of the base; the distance between the first adsorption structure and the first sealing cavity and the distance between the second adsorption structure and the second sealing cavity are shortened, so that the purpose of improving the adsorption stability is achieved, and the safety of the display screen and the accuracy of a test result are improved; meanwhile, the notch of the second groove is sealed through the first carrying platform, so that a cover plate does not need to be arranged for the second groove, the structure of the display screen testing tool is simplified, and the display screen testing tool has the advantages of being good in manufacturability and low in cost.

Description

Technical Field

[0001] The present invention relates to the technical field of display screen production, and in particular to a display screen testing tool. Background Art

[0002] During the production process, the display screen needs to be tested. There are multiple test sites for automatic testing of the display screen. Currently, a belt line is usually used to transport the display screen to flow through each test site. When the display screen arrives at the test site, the display screen is taken out from the belt line by a robotic arm and placed on the tooling for testing in the machine for testing.

[0003] However, this testing mode requires the display screen to be picked up and placed 10 to 16 times, which is prone to defects such as color unevenness and breakage, increasing production costs and reducing production yields.

[0004] In the prior art, some manufacturers use a carrier to carry the display screen to transfer between various test sites, and use a vacuum adsorption structure to adsorb the display screen to fix the display screen on the carrier. This carrier has problems such as complex vacuum adsorption structure, poor processability, high cost, and poor adsorption stability. Summary of the invention

[0005] The purpose of the present invention is to provide a display screen testing tool, which has the advantages of good processability, low cost and strong adsorption stability.

[0006] In order to achieve the above objectives, the following technical solutions are provided:

[0007] Display test tooling, including:

[0008] A base, wherein the top surface of the base is provided with a first groove and a second groove, and the bottom surface of the base is provided with a second hole communicating with the second groove;

[0009] A first cover body, the first cover body is used to close the notch of the first groove and form a first sealed cavity, and the first cover body is provided with a first hole communicating with the first sealed cavity;

[0010] A first carrier, the first carrier is fixedly mounted on the top surface of the base, and the first carrier can close the notch of the second groove and form a second sealed cavity;

[0011] At least one first adsorption structure and at least one second adsorption structure, at least one of the first adsorption structures is communicated with the first sealed cavity, and at least one of the second adsorption structures is communicated with the second sealed cavity.

[0012] Optionally, the first groove is a straight groove; and / or,

[0013] The second groove includes a first groove segment, a second groove segment and a third groove segment connected in sequence, the angle between the center line of the first groove segment and the center line of the second groove segment is a first obtuse angle, and the angle between the center line of the second groove segment and the center line of the third groove segment is a second obtuse angle.

[0014] Optionally, it further comprises at least one third adsorption structure, wherein the third adsorption structure is not connected to the first sealed cavity, and the third adsorption structure is not connected to the second sealed cavity; wherein,

[0015] The third adsorption structure, the first adsorption structure and the second adsorption structure are arranged in a triangle structure.

[0016] Optionally, two of the second adsorption structures are provided, and one of the third adsorption structures, one of the first adsorption structures and two of the second adsorption structures are arranged in a quadrilateral structure.

[0017] Optionally, the two second adsorption structures are both located on the same diagonal line of the quadrilateral structure.

[0018] Optionally, a boss is provided on the top surface of the first carrier, the boss is provided with a first through hole corresponding to the first adsorption structure, and the first adsorption structure is located in the first through hole;

[0019] The boss is provided with a second through hole corresponding to the second adsorption structure, and the second adsorption structure is located in the second through hole;

[0020] The boss is provided with a third through hole corresponding to the third adsorption structure, and the third adsorption structure is located in the third through hole.

[0021] Optionally, the first carrier is provided with a plurality of limit members, and the plurality of limit members are arranged on the top surface of the first carrier at intervals along the circumference of the display screen, and the limit members are detachably connected to the first carrier.

[0022] Optionally, the limiting member can produce elastic deformation.

[0023] Optionally, the display screen testing tool further includes a second carrier, and the second carrier is used to carry a circuit board of the display screen.

[0024] Optionally, a third hole is provided on the bottom surface of the base, a connecting pipeline is provided on the top surface of the bottom end, a fourth adsorption structure is provided on the second carrier, and the third hole is connected to the fourth adsorption structure through the connecting pipeline.

[0025] Optionally, a third groove is provided on the bottom surface of the base, and the second hole and the third hole are both located in the third groove.

[0026] Optionally, a top surface of the second carrier is higher than a top surface of the first carrier.

[0027] Optionally, the display screen testing tool further includes:

[0028] A test adapter, the test adapter is used to be electrically connected to a circuit board of the display screen, and the test adapter is fixedly arranged on the top surface of the base;

[0029] A test connector and a first locking member, wherein the test connector is used to be electrically connected to the test device, the test connector is electrically connected to the test adapter, and the test connector is fixed to the bottom surface of the base through the first locking member; an anti-detachment structure is provided between the first locking member and the test connector, and the anti-detachment structure can prevent the first locking member from falling off.

[0030] Optionally, the display screen testing tool further includes a limiting mechanism, and the limiting mechanism includes:

[0031] A pressure head, the pressure head is arranged corresponding to the circuit board of the display screen, and one end of the pressure head is hinged to the top surface of the base;

[0032] A limiting elastic member, wherein the limiting elastic member is configured to make the other end of the pressing head have a movement tendency away from the base;

[0033] A pressing block and a first elastic member, wherein the pressing block is arranged on a side of the circuit board of the pressing head facing the display screen, and the first elastic member is sandwiched between the pressing block and the pressing head;

[0034] A locking assembly is used to lock or unlock the pressing head and the base so that the pressing block and the base can clamp the circuit board of the display screen.

[0035] Optionally, the display screen testing tool further includes a protection mechanism, and the protection mechanism includes:

[0036] A sheath, the sheath being arranged on the outside of the test adapter;

[0037] The second elastic member is configured to enable the sheath to have a tendency to move from bottom to top along a vertical direction.

[0038] Optionally, the first locking member is a half-thread bolt, and the test connector is provided with a threaded hole corresponding to the half-thread bolt.

[0039] Optionally, the test adapter comprises a blade-shaped probe, and the blade-shaped probe is plugged into a circuit board of the display screen.

[0040] Optionally, the first cover body comprises:

[0041] A first plate body, wherein the first hole is provided on the first plate body; the first plate body is located at one side of the first carrier;

[0042] A second plate body, the second plate body is connected to the first plate body, and along the vertical direction, the orthographic projection of the second plate body is located within the orthographic projection of the first stage; the second plate body reuses the first stage.

[0043] Compared with the prior art, the present invention has the following beneficial effects:

[0044] In the display screen testing tooling of the present invention, the first carrier, the first groove and the second groove are all located on the top surface of the base, so that the first sealed cavity and the first adsorption structure connected to the first sealed cavity, the second sealed cavity and the second adsorption structure connected to the second sealed cavity are all located on the top surface of the base, which is equivalent to shortening the distance between the first adsorption structure and the first sealed cavity, and the distance between the second adsorption structure and the second sealed cavity, thereby achieving the purpose of improving the adsorption stability, which is beneficial to improving the safety of the display screen and the accuracy of the test results; at the same time, the notch of the second groove is closed by the first carrier, and there is no need to set a cover plate for the second groove, thereby simplifying the structure of the display screen testing tooling, so that the display screen testing tooling has the advantages of good processability and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a first structural schematic diagram of a display screen testing tool in an embodiment of the present invention;

[0046] Figure 2 An exploded view of a display screen testing tool in an embodiment of the present invention;

[0047] Figure 3 This is a second structural schematic diagram of the display screen testing tooling in an embodiment of the present invention;

[0048] Figure 4 Schematic diagram of the structure of the limiting mechanism in an embodiment of the present invention.

[0049] Reference numerals:

[0050] 1. Base; 11. First groove; 12. Second groove; 13. Second hole; 14. Third hole; 15. Third groove; 16. Positioning structure; 2. First cover; 21. First hole; 22. Connecting hole; 3. First carrier; 31. First adsorption structure; 32. Second adsorption structure; 33. Third adsorption structure; 34. Boss; 341. First through hole; 342. Second through hole; 343. Third through hole; 35. Mounting hole; 36. Slot; 4. Limiting member; 5. Second carrier; 51. Fourth adsorption structure; 61. Test adapter; 62. Test connector; 63. First locking member; 7. Second cover; 8. Limiting mechanism; 81. Press head; 82. Press block; 83. Locking assembly; 831. Buckle; 832. Block; 84. Press seat; 91. Sheath; 10. Connecting pipeline. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0052] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0054] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0055] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0057] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0058] like Figure 1-3 As shown, the present embodiment provides a display screen testing tool, including a base 1, a first cover body 2, a first carrier 3, at least one first adsorption structure 31 and at least one second adsorption structure 32, the top surface of the base 1 is provided with a first groove 11 and a second groove 12 at the same time, and the bottom surface of the base 1 is provided with a second hole 13 connected to the second groove 12; the first cover body 2 is used to close the notch of the first groove 11 and form a first sealed cavity, and the first cover body 2 is provided with a first hole 21 connected to the first sealed cavity; the first carrier 3 is fixedly arranged on the top surface of the base 1, and the first carrier 3 can close the notch of the second groove 12 and form a second sealed cavity; at least one first adsorption structure 31 is connected to the first sealed cavity, and at least one second adsorption structure 32 is connected to the second sealed cavity.

[0059] It can be understood that at least one first adsorption structure 31 and at least one second adsorption structure 32 can be fixed on the top surface of the base 1, and by setting mounting holes 35 corresponding to the first adsorption structure 31 and the second adsorption structure 32 on the first carrier 3, the first adsorption structure 31 and the second adsorption structure 32 can both contact the display screen.

[0060] It should be noted that when performing automated testing of the display screen, the display screen is first placed on the first carrier 3 so that the first adsorption structure 31 and the second adsorption structure 32 can adsorb and fix the display screen to prevent the display screen from shifting and falling during the turnover process. Then, the display screen and the display screen test tooling are transported by a conveying mechanism such as a belt line and flow through various test sites. When arriving at the test site, the display screen test tooling is transferred to the test device by a robotic arm, and the display screen carried by the display screen test tooling can be tested and burned and other process operations and inspections can be performed.

[0061] With the display screen testing tooling of the present embodiment, the display screen only needs to be loaded with the display screen testing tooling once to complete the testing of multiple test sites, and defects such as color unevenness and broken pieces will not be caused by multiple placements of the display screen.

[0062] When the display screen test fixture is clamped by the robot arm, the first hole 21 is connected to the vacuum suction mechanism on the robot arm, so as to suction the first sealed cavity through the first hole 21, and then fix the display screen by suction through the first suction structure 31. When the display screen test fixture is on the test device, the second hole 13 is connected to the vacuum suction mechanism on the test device, so as to suction the second sealed cavity through the second hole 13, and then fix the display screen by suction through the second suction structure 32, thereby ensuring that the display screen is always fixed during the test process, and there will be no problem of displacement or falling.

[0063] In the display screen test tooling of the present embodiment, the first carrier 3, the first groove 11 and the second groove 12 are all located on the top surface of the base 1, so that the first sealed cavity and the first adsorption structure 31 connected to the first sealed cavity, the second sealed cavity and the second adsorption structure 32 connected to the second sealed cavity are all located on the top surface of the base 1, which is equivalent to shortening the distance between the first adsorption structure 31 and the first sealed cavity, and the distance between the second adsorption structure 32 and the second sealed cavity, thereby achieving the purpose of improving the adsorption stability, which is beneficial to improving the safety of the display screen and the accuracy of the test results; at the same time, the notch of the second groove 12 is closed by the first carrier 3, and there is no need to set a cover plate for the second groove 12, which simplifies the structure of the display screen test tooling, so that the display screen test tooling has the advantages of good processability and low cost.

[0064] Optionally, the first cover plate includes a first plate body and a second plate body, and the first hole 21 is provided on the first plate body; the first plate body is located on one side of the first carrier 3; the second plate body is connected to the first plate body, and along the vertical direction, the orthographic projection of the second plate body is located within the orthographic projection of the first carrier 3; the second plate body reuses the first carrier 3, thereby further simplifying the structure of the display screen testing tooling and reducing costs.

[0065] Optionally, the first groove 11 is a straight groove, which has a simple structure and is easy to manufacture and shape, thus helping to reduce costs.

[0066] Optionally, the second groove 12 includes a first groove segment, a second groove segment and a third groove segment connected in sequence, the angle between the center line of the first groove segment and the center line of the second groove segment is a first obtuse angle, and the angle between the center line of the second groove segment and the center line of the third groove segment is a second obtuse angle, so that the second groove 12 is not only simple in structure and easy to manufacture and form, but also has a small total length, which is conducive to improving processing efficiency and reducing costs.

[0067] Optionally, the display screen test fixture further includes at least one third adsorption structure 33, the third adsorption structure 33 is not connected to the first sealed cavity, and the third adsorption structure 33 is not connected to the second sealed cavity; wherein a third adsorption structure 33, a first adsorption structure 31 and a second adsorption structure 32 are arranged in a triangular structure. In other words, the third adsorption structure 33 only provides a support function for the display screen, and does not have the function of adsorbing and fixing the display screen. The third adsorption structure 33 does not need to be connected to the first groove 11 and the second groove 12, thereby shortening the length of the first groove 11 and the second groove 12, thereby improving the processability of the base 1. By arranging a third adsorption structure 33, a first adsorption structure 31 and a second adsorption structure 32 in a triangular structure, the support stability of the display screen is improved, which is beneficial to ensure the position consistency of the display screen on the display screen test fixture, and further beneficial to improve the safety of the display screen and the test accuracy.

[0068] Optionally, two second adsorption structures 32 are provided, and a third adsorption structure 33, a first adsorption structure 31 and two second adsorption structures 32 are arranged in a quadrilateral structure. The display screen is usually a quadrilateral structure, and the above arrangement can improve the support stability of the display screen with a quadrilateral structure and the force uniformity of the display screen, thereby protecting the display screen.

[0069] Optionally, the two second adsorption structures 32 are both located on the same diagonal line of the quadrilateral structure, which is beneficial to improving the stability of adsorption and fixation of the display screen and the uniformity of force on the display screen.

[0070] Optionally, the first adsorption structure 31 is a first vacuum suction cup. The second adsorption structure 32 is a second vacuum suction cup. The display screen is fixed by adsorption of the vacuum suction cup, which has higher stability. Furthermore, the third adsorption structure 33 is a third vacuum suction cup. As an alternative, the first adsorption structure 31, the second adsorption structure 32 and the third adsorption structure 33 can also be suction nozzles of other structures; the first adsorption structure 31, the second adsorption structure 32 and the third adsorption structure 33 can also be suction holes, which are not limited here.

[0071] It should be noted that when the first adsorption structure 31, the second adsorption structure 32 and the third adsorption structure 33 are vacuum suction cups or suction nozzles, the first carrier 3 is provided with mounting holes 35 respectively corresponding to the first adsorption structure 31, the second adsorption structure 32 and the third adsorption structure 33, and the mounting hole 35 corresponding to the first adsorption structure 31 is connected to the first sealed cavity, and the mounting hole 35 corresponding to the second adsorption structure 32 is connected to the second sealed cavity, and one end of the vacuum suction cup or suction nozzle is installed in the corresponding mounting hole 35. Further, when the second plate body of the first cover body 2 does not reuse the first carrier 3, the first cover body 2 is also provided with a connecting hole 22 corresponding to the first adsorption structure 31, and the first adsorption structure 31 is connected to the first sealed cavity through the connecting hole 22.

[0072] Optionally, a boss 34 is provided on the top surface of the first carrier 3, and the boss 34 is provided with a first through hole 341 corresponding to the first adsorption structure 31, and the first adsorption structure 31 is located in the first through hole 341. Further, the boss 34 is provided with a second through hole 342 corresponding to the second adsorption structure 32, and the second adsorption structure 32 is located in the second through hole 342. Further, the boss 34 is provided with a third through hole 343 corresponding to the third adsorption structure 33, and the third adsorption structure 33 is located in the third through hole 343. By supporting the display screen by the boss 34, the contact area between the display screen and the first carrier 3 can be reduced, and the risk of wear of the display screen can be reduced; and the first through hole 341 avoids the first adsorption structure 31, the second through hole 342 avoids the second adsorption structure 32, and the third through hole 343 avoids the third adsorption structure 33.

[0073] Optionally, the first carrier 3 is provided with a plurality of limiters 4, which are arranged on the top surface of the first carrier 3 at intervals along the circumference of the display screen, and the limiters 4 are detachably connected to the first carrier 3, and then the limiters 4 can be abutted against the four sides of the display screen to position the display screen, thereby improving the stability and position consistency of the display screen, which is conducive to improving the safety of the display screen and the accuracy of the test. At the same time, the limiters 4 are detachably connected to the first carrier 3, which is convenient for replacing the limiters 4 that do not meet the specifications according to different models of display screens, and has stronger versatility.

[0074] Optionally, the limiting member 4 can generate elastic deformation, thereby not excessively squeezing the display screen, thereby improving the safety of the display screen.

[0075] It should be noted that this embodiment does not limit the shape of the limiting member 4. Exemplarily, the limiting member 4 is a silicone limiting block, which has a simple structure and low cost.

[0076] Specifically, the first carrier 3 is provided with a slot 36 , and the limiting member 4 is locked in the slot 36 for easy disassembly.

[0077] Optionally, the display screen test tool further includes a second carrier 5, which is used to carry a circuit board of the display screen, thereby protecting the circuit board, ensuring the reliability of the circuit connection, and facilitating improving the test accuracy.

[0078] Specifically, the circuit board of the display screen is a flexible printed circuit (FPC) with excellent electrical properties, which can meet the design requirements of smaller and higher density installation, and also help reduce assembly processes and enhance reliability.

[0079] Optionally, a third hole 14 is provided on the bottom surface of the base 1, a connecting pipe 10 is provided on the top surface of the bottom end, and a fourth adsorption structure 51 is provided on the second carrier 5. The third hole 14 is connected to the fourth adsorption structure 51 through the connecting pipe 10, and then the circuit board of the display screen can be adsorbed and fixed through the third hole 14, which not only ensures the fixing stability of the circuit board, but also does not damage the circuit board. At the same time, the display screen and its circuit board are fixed by adsorption, and can share the vacuum suction mechanism of the robotic arm and the testing device, thereby simplifying the structure and reducing costs.

[0080] Specifically, a first channel is provided on the bottom surface of the first carrier 3 , a second channel is provided on the bottom surface of the second carrier 5 , and the connecting pipeline 10 passes through the first channel and the second channel.

[0081] Specifically, the fourth adsorption structure 51 includes at least one fourth through hole, which is disposed on the top surface of the second carrier 5 and passes through the second carrier 5, and at least one fourth through hole is connected to the connecting pipeline 10. It should be noted that in this embodiment, the number and arrangement position of the fourth through holes are not limited.

[0082] Optionally, a third groove 15 is provided on the bottom surface of the base 1, and the second hole 13 and the third hole 14 are both located in the third groove 15, so that the second hole 13 and the third hole 14 are conveniently connected to the vacuum suction mechanism of the robot arm and the testing device, thereby improving convenience.

[0083] Optionally, the base 1 is provided with a positioning structure 16, which can be used to align with the test device and the robotic arm respectively, so as to facilitate accurate placement of the display screen test tooling. Exemplarily, the positioning structure 16 is a positioning hole, and the test device and the robotic arm are both provided with positioning pins corresponding to the positioning hole. As an alternative, the positioning structure 16 can also be a positioning pin, and the test device and the robotic arm are both provided with positioning holes corresponding to the positioning holes.

[0084] Optionally, the top surface of the second carrier 5 is higher than the top surface of the first carrier 3. It should be noted that, generally, the thickness of the display screen is greater than the thickness of the circuit board. By making the top surface of the second carrier 5 higher than the top surface of the first carrier 3, the second carrier 5 is matched with the circuit board, which is conducive to ensuring the connection reliability between the circuit board and the display screen.

[0085] Optionally, the display screen test tool further includes a test adapter 61, a test connector 62 and a first locking member 63, wherein the test adapter 61 is used to electrically connect to the circuit board of the display screen, and the test adapter 61 is fixed to the top surface of the base 1; the test connector 62 is used to electrically connect to the test device, and the test connector 62 is electrically connected to the test adapter 61, and the test connector 62 is fixed to the bottom surface of the base 1 through the first locking member 63. With such a configuration, when testing the display screen, it is only necessary to electrically connect the circuit board of the display screen to the test adapter 61, and the loading signal of the test device of each test site can be transmitted to the circuit board through the test connector 62, which is equivalent to that the circuit board of the display screen only needs to be contacted and connected in sequence to realize multiple tests, thereby reducing the number of times the circuit board is contacted and connected, thereby improving the yield.

[0086] Furthermore, an anti-drop structure is provided between the first locking member 63 and the test connector 62, and the anti-drop structure can prevent the first locking member 63 from falling off. During the transportation of the display test tooling, slight vibrations will occur, and the anti-drop structure can prevent the first locking member 63 from falling off and causing the test device to shut down.

[0087] Optionally, the first locking member 63 is a half-thread bolt, the test connector 62 is provided with a threaded hole corresponding to the half-thread bolt, and the half-thread bolt is threadedly connected in the threaded hole to form the above-mentioned anti-drop structure. Not only can the purpose of preventing the first locking member 63 from falling off be achieved, but also the structure is simple, easy to implement, and low in cost.

[0088] Exemplarily, the test connector 62 is a PCB board. Specifically, a mounting groove is provided on the bottom surface of the base 1, and the PCB board is fixed in the mounting groove by fasteners such as screws. The display screen test tool also includes a second cover body 7, which is provided with a connection port corresponding to the pin pin of the PCB board so that the pin pin is connected to the test device through the connection port. The second cover body 7 is covered on the notch of the mounting groove to improve the aesthetics of the display screen test tool and protect the PCB board.

[0089] Alternatively, if Figure 4As shown, the display screen test tool also includes a limiting mechanism 8, which includes a pressure head 81, a limiting elastic member (not shown in the figure), a pressure block 82, a first elastic member (not shown in the figure) and a locking assembly 83. The pressure head 81 is arranged corresponding to the circuit board of the display screen, and one end of the pressure head 81 is hinged to the top surface of the base 1; the limiting elastic member is configured to make the other end of the pressure head 81 have a movement tendency away from the base 1; the pressure block 82 is arranged on the side of the pressure head 81 facing the circuit board of the display screen, and the first elastic member is clamped between the pressure block 82 and the pressure head 81; the locking assembly 83 is used to lock or unlock the pressure head 81 and the base 1, so that the pressure block 82 and the base 1 can clamp the circuit board of the display screen.

[0090] It is understandable that when the pressure head 81 is not subjected to force, the other end of the pressure head 81 will move away from the base 1 under the elastic force of the limiting elastic member, that is, at this time, the pressure head 81 is in an open state, which makes it easier to place the circuit board of the display screen between the pressure head 81 and the test adapter 61. When the circuit board of the display screen is placed in place, the pressure head 81 is rolled by a pressing mechanism such as a rolling manipulator to squeeze the limiting elastic member, so that the other end of the pressure head 81 gradually approaches the circuit board of the display screen, so that the pressure block 82 gradually abuts against the circuit board to apply pressure to the circuit board, so that the circuit board and the test adapter 61 are plugged, that is, the electrical connection between the circuit board and the test adapter 61 is realized, and then the pressure head 81 is locked with the base 1 by the locking assembly 83, so that the circuit board of the display screen can be clamped by the pressure head 81 and the base 1 to ensure the connection stability between the circuit board and the test adapter 61.

[0091] After the pressing block 82 contacts the circuit board, as the rolling robot further rolls the pressing head 81, the pressing block 82 and the pressing head 81 will squeeze the first elastic member, thereby playing a buffering role to prevent the circuit board from being damaged due to excessive force.

[0092] When the display screen passes through multiple process steps and equipment, it needs to be lit up quickly. By adopting the above-mentioned limiting mechanism, fast lighting can be achieved and the connection reliability between the circuit board and the test connector can be guaranteed.

[0093] Exemplarily, the limiting elastic member is a torsion spring; and the first elastic member is a compression spring.

[0094] Specifically, the locking assembly 83 includes a buckle 831 and a block 832. The buckle 831 is fixed to the base 1, and the block 832 is provided on the pressure head 81. The pressure head 81 is pressed down and the buckle 831 is engaged with the block 832, so that the pressure head 81 and the base 1 can be locked. Of course, the buckle 831 can also be provided on the pressure head 81, and the block 832 can be provided on the base 1. It should be noted that the number and setting position of the locking assembly 83 are not limited in this embodiment.

[0095] Optionally, the display screen test fixture further includes a protection mechanism, which includes a sheath 91 and a second elastic member (not shown in the figure), the sheath 91 is sleeved on the outside of the test adapter 61; the second elastic member is configured to allow the sheath 91 to have a tendency to move from bottom to top in the vertical direction, thereby allowing the top surface of the sheath 91 to be higher than the top surface of the test adapter 61, so that when the circuit board is not in contact with the test adapter 61, the test adapter 61 is protected by the sheath 91. When the circuit board is plugged into the test adapter 61, pressure can be applied to the sheath 91 through the circuit board, and the second elastic member can be squeezed, so that the sheath 91 does not affect the connection between the circuit board and the test adapter 61.

[0096] Exemplarily, the second elastic member is a compression spring, which is clamped between the sheath 91 and the base 1 .

[0097] Optionally, the limiting mechanism 8 also includes a pressure seat 84, which is fixed to the base 1, the test adapter 61 is fixed to the pressure seat 84, one end of the pressure head 81 is hinged to the pressure seat 84, the buckle 831 is fixed to the pressure seat 84, and the second elastic member is connected between the sheath 91 and the pressure seat 84, thereby facilitating the limiting mechanism 8 to form a whole and improving the convenience of assembly.

[0098] Optionally, the test adapter 61 includes a blade-shaped probe, which is plugged into a circuit board of the display screen, thereby facilitating improving the connection reliability between the test adapter 61 and the circuit board.

[0099] Exemplarily, the working principle of the display screen testing tool of this embodiment is:

[0100] The display screen is grabbed by the robot arm, and the display screen is moved to the top of the display screen test fixture. The CCD camera identifies the alignment, and the display screen is placed on the first carrier 3, and the circuit board of the display screen is placed on the second carrier 5, and the circuit board is aligned with the test adapter 61. Then the rolling robot rolls the pressure head 81, and the buckle 831 is engaged with the block 832, and then the circuit board is pressed with the test adapter 61 to achieve electrical connection. Then the base 1 can be grabbed by the robot arm to transfer the display screen for testing.

[0101] When the display screen test fixture is grabbed by the robot arm, the first hole 21 is connected to the vacuum suction mechanism on the robot arm to suction the first sealed cavity through the first hole 21 , and then the display screen is fixed by suction through the first suction structure 31 .

[0102] When the display screen test tool is located on the test device, the second hole 13 is connected to the vacuum suction mechanism on the test device to suction the second sealed cavity through the second hole 13, and then the display screen is fixed by adsorption through the second adsorption structure 32, thereby ensuring that the display screen is always fixed during the test and will not shift or fall.

[0103] The testing device supplies power to the circuit board and loads a signal through the testing connector 62 to light up the display screen, and performs process operations and inspections such as testing and burning.

[0104] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. Display screen testing tooling, characterized in that: include: A base, wherein the top surface of the base is provided with a first groove and a second groove, and the bottom surface of the base is provided with a second hole communicating with the second groove; A first cover body, the first cover body is used to close the notch of the first groove and form a first sealed cavity, and the first cover body is provided with a first hole communicating with the first sealed cavity; A first carrier, the first carrier is fixedly mounted on the top surface of the base, and the first carrier can close the notch of the second groove and form a second sealed cavity; At least one first adsorption structure and at least one second adsorption structure, at least one of the first adsorption structures is communicated with the first sealed cavity, and at least one of the second adsorption structures is communicated with the second sealed cavity.

2. The display screen testing tool according to claim 1, characterized in that: The first groove is a straight groove; and / or, The second groove includes a first groove segment, a second groove segment and a third groove segment connected in sequence, the angle between the center line of the first groove segment and the center line of the second groove segment is a first obtuse angle, and the angle between the center line of the second groove segment and the center line of the third groove segment is a second obtuse angle.

3. The display screen testing tool according to claim 1, characterized in that: It also includes at least one third adsorption structure, which is not connected to the first sealed cavity, and the third adsorption structure is not connected to the second sealed cavity; wherein, The third adsorption structure, the first adsorption structure and the second adsorption structure are arranged in a triangle structure.

4. The display screen testing tool according to claim 3, characterized in that: There are two second adsorption structures, and one third adsorption structure, one first adsorption structure and two second adsorption structures are arranged in a quadrilateral structure.

5. The display screen testing tool according to claim 4, characterized in that: The two second adsorption structures are both located on the same diagonal line of the quadrilateral structure.

6. The display screen testing tool according to claim 3, characterized in that: A boss is provided on the top surface of the first carrier, and a first through hole is provided on the boss corresponding to the first adsorption structure, and the first adsorption structure is located in the first through hole; The boss is provided with a second through hole corresponding to the second adsorption structure, and the second adsorption structure is located in the second through hole; The boss is provided with a third through hole corresponding to the third adsorption structure, and the third adsorption structure is located in the third through hole.

7. The display screen testing tool according to claim 1, characterized in that: The first carrier is provided with a plurality of limiting members, which are arranged on the top surface of the first carrier at intervals along the circumference of the display screen, and the limiting members are detachably connected to the first carrier.

8. The display screen testing tool according to claim 7, characterized in that: The limiting member can generate elastic deformation.

9. The display screen testing tool according to claim 1, characterized in that: The display screen testing tool further includes a second carrier, and the second carrier is used to carry the circuit board of the display screen.

10. The display screen testing tool according to claim 9, characterized in that: The bottom surface of the base is provided with a third hole, the top surface of the bottom end is provided with a connecting pipeline, the second carrier is provided with a fourth adsorption structure, and the third hole is connected with the fourth adsorption structure through the connecting pipeline.

11. The display screen testing tool according to claim 10, characterized in that: A third groove is provided on the bottom surface of the base, and the second hole and the third hole are both located in the third groove.

12. The display screen testing tool according to claim 9, characterized in that: The top surface of the second carrier is higher than the top surface of the first carrier.

13. The display screen testing tool according to claim 1, characterized in that: The display screen testing tool also includes: A test adapter, the test adapter is used to be electrically connected to a circuit board of the display screen, and the test adapter is fixedly arranged on the top surface of the base; A test connector and a first locking member, wherein the test connector is used to be electrically connected to the test device, the test connector is electrically connected to the test adapter, and the test connector is fixed to the bottom surface of the base through the first locking member; an anti-detachment structure is provided between the first locking member and the test connector, and the anti-detachment structure can prevent the first locking member from falling off.

14. The display screen testing tool according to claim 13, characterized in that: The display screen testing tool further includes a limiting mechanism, and the limiting mechanism includes: A pressure head, the pressure head is arranged corresponding to the circuit board of the display screen, and one end of the pressure head is hinged to the top surface of the base; A limiting elastic member, wherein the limiting elastic member is configured to make the other end of the pressing head have a movement tendency away from the base; A pressing block and a first elastic member, wherein the pressing block is arranged on a side of the circuit board of the pressing head facing the display screen, and the first elastic member is sandwiched between the pressing block and the pressing head; A locking assembly is used to lock or unlock the pressing head and the base so that the pressing block and the base can clamp the circuit board of the display screen.

15. The display screen testing tool according to claim 14, characterized in that: The display screen testing tool further includes a protection mechanism, and the protection mechanism includes: A sheath, the sheath being arranged on the outside of the test adapter; The second elastic member is configured to enable the sheath to have a tendency to move from bottom to top along a vertical direction.

16. The display screen testing tool according to claim 13, characterized in that: The first locking member is a half-thread bolt, and the test connector is provided with a threaded hole corresponding to the half-thread bolt.

17. The display screen testing tool according to claim 13, characterized in that: The test adapter comprises a blade-shaped probe, and the blade-shaped probe is plugged into a circuit board of the display screen.

18. The display screen testing tool according to claim 1, characterized in that: The first cover body comprises: A first plate body, wherein the first hole is provided on the first plate body; the first plate body is located at one side of the first carrier; A second plate body, the second plate body is connected to the first plate body, and along the vertical direction, the orthographic projection of the second plate body is located within the orthographic projection of the first stage; the second plate body reuses the first stage.

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