Test fixture for preventing missing test of detection picture of display module

Abstract

The utility model discloses a test fixture for preventing missing test of a detection picture of a display module, which comprises a test fixture body, a display module to be detected is accommodated on the test fixture body, and a test point connected with the display module is arranged on the test fixture body. A test point is arranged on the display module, a pressure head for pressing the joint of the display module and the test point is arranged on one side of the test point, a buckle is arranged on one side, far away from the pressure head, of the test point, the buckle is used for locking the pressure head, and a test bottom plate for detecting the display module is arranged in the test fixture. The test bottom plate is connected with an adsorption structure which is used for controlling the buckle to lock the pressure head when the display module is detected. The test fixture has the effect that the display module is fixed by locking the pressure head through the buckle in the test process of the display module, so that the display module is prevented from being taken away when the detection is not completed, and a detection picture is prevented from being missed.

Description

Technical Field

[0001] The utility model relates to the technical field of test fixtures, in particular to a test fixture for preventing missed testing of detection screens of display modules. Background Art

[0002] Display screens are widely used in modern society and can be seen everywhere. Through display screens, information can be expressed more intuitively and vividly. In the industrial and consumer fields, in addition to products that commonly use display screens, such as monitors, telephones, handheld scanners, cameras, etc., many devices that did not use display screens before are now starting to use them, such as remote controls, ovens, refrigerators, etc.

[0003] Display screens have a huge market, and the shipment volume of display modules is also huge. For the test fixtures used for testing and shipping display screens, when employees test display screens, there are multiple detection screens, and some projects have more than 10 detection screens. During the continuous testing of display screens by employees, due to testing negligence or in order to improve efficiency, they may remove the display screen without completing all the inspections of the detection screens, thus causing potential risks of defective products flowing out. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a test fixture for preventing missed testing of detection screens of display modules.

[0005] The purpose of the utility model is realized by the following technical solutions:

[0006] A test fixture for preventing missed testing of detection screens of display modules, comprising: a test fixture body, on which a display module to be detected is accommodated, a test point connected to the display module is arranged on the test fixture body, a pressing head for pressing the connection between the display module and the test point is arranged on one side of the test point, a buckle is arranged on the side of the test point away from the pressing head, the buckle is used to lock the pressing head, a test bottom plate for detecting the display module is arranged in the test fixture, and an adsorption structure for controlling the buckle to lock the pressing head when the display module is detected is connected to the test bottom plate.

[0007] In one embodiment, a receiving groove is formed at the position of the test fixture body relative to the display module, and the display module is accommodated in the receiving groove.

[0008] In one embodiment, an FPC is bonded to the display module, a placement groove is formed at the position of the test fixture body relative to the FPC, the placement groove is communicated with the receiving groove, and the FPC is placed in the placement groove.

[0009] In one embodiment, the test point is recessed downward along the surface of the test fixture body, and the recess of the test point communicates with the placement groove. One end of the FPC away from the display module is connected to the test point.

[0010] In one embodiment, the test point communicates with the test bottom plate, and a test circuit for detecting the display module is provided on the test bottom plate.

[0011] In one embodiment, one end of the indenter close to the test fixture body is hinged to the test fixture body, and the end of the indenter away from the hinge point can rotate around the hinge point to press down on the connection between the FPC and the test point.

[0012] In one embodiment, a pressing plate is provided on the side of the indenter facing the test point, and the pressing plate is disposed opposite to the recess of the test point. When the indenter rotates around the hinge point and presses down above the test point, the pressing plate is located in the recess of the test point.

[0013] In one embodiment, the buckle is located on one side of the indenter. The buckle is made of a metal material. The buckle is connected to the test bottom plate, and the adsorption structure controls the buckle to lock or release the indenter.

[0014] In one embodiment, the adsorption structure is an electromagnet. The electromagnet is electrically connected to the test bottom plate. After the electromagnet is energized, it generates magnetism to make the buckle buckle down to lock the indenter.

[0015] In one embodiment, a controller and a power supply are provided in the test bottom plate. The controller is electrically connected to the test bottom plate and the electromagnet, and the controller is also electrically connected to the power supply. The electromagnet is electrically connected to the power supply. The controller is used to receive the signal of the test bottom plate to control the power supply to energize or cut off the power supply of the electromagnet.

[0016] Compared with the prior art, the present invention has at least the following advantages:

[0017] A test fixture for preventing missed testing of the detection screen of a display module according to the present invention is provided with a buckle and an adsorption structure for controlling the opening and closing of the buckle, so as to fasten the indenter to fix the display module during the testing of the display module, and then release the buckle until all the detection screens of the display module are tested, so as to prevent missed detection screens and prevent defective products from flowing to the client. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below.

[0019] Figure 1 Schematic diagram of the structure of a test fixture for preventing missed testing of the detection screen of a display module provided by the present utility model;

[0020] Figure 2 Schematic diagram of the structure of the buckle for fastening the pressing head in a test fixture for preventing missed testing of the detection screen of a display module provided by the present utility model;

[0021] Figure 3 Schematic diagram of the structure of the test bottom plate in a test fixture for preventing missed testing of the detection screen of a display module provided by the present utility model.

[0022] Description of the drawings: 10, test fixture body; 11, accommodation groove; 12, placement groove; 13, test point; 20, display module; 21, FPC; 30, test bottom plate; 40, pressing head; 41, pressing plate; 50, buckle; 60, electromagnet; 70, controller; 80, power supply. Detailed implementation manners

[0023] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings.

[0024] A test fixture for preventing missed testing of the detection screen of a display module, referring to Figure 1 , includes a test fixture body 10, the test fixture body 10 accommodates a display module 20 to be detected, an accommodation groove 11 is provided at a position of the test fixture body 10 relative to the display module 20, the accommodation groove 11 is opened on the upper surface of the test fixture body 10, and the display module 20 is accommodated in the accommodation groove 11.

[0025] Referring to Figure 1 and Figure 2 , an FPC 21 is bonded to the display module 20, the FPC 21 is a flexible printed circuit board, a placement groove 12 is provided at a position of the test fixture body 10 relative to the FPC 21, the placement groove 12 communicates with the accommodation groove 11, and the FPC 21 is placed in the placement groove 12.

[0026] Referring to Figure 1 , test points 13 are provided on the test fixture body 10, the test points 13 are recessed downward along the surface of the test fixture body 10, and the recessed parts of the test points 13 communicate with the placement groove 12. One end of the FPC 21 far from the display module 20 is connected to the test points 13 to facilitate powering on the display module 20 for detection.

[0027] Referring to Figure 3, a test bottom plate 30 is arranged inside the test fixture body 10. The test point 13 is communicated with the test bottom plate 30. A test circuit for detecting the display module 20 is arranged on the test bottom plate 30. The test bottom plate 30 detects the display module 20 by controlling the test circuit.

[0028] Referring to Figure 1 and Figure 2 , a pressing head 40 for pressing the connection part between the FPC 21 and the test point 13 is arranged on one side of the test point 13. One end of the pressing head 40 close to the test fixture body 10 is hinged to the test fixture body 10. The end of the pressing head 40 far from the hinge point can rotate around the hinge point to the upper part of the test point 13, so as to press down on the connection part between the FPC 21 and the test point 13, so as to prevent the connection part between the FPC 21 and the test point 13 from loosening.

[0029] Furthermore, referring to Figure 1 and Figure 2 , a pressing plate 41 is arranged on the side of the pressing head 40 facing the test point 13. The pressing plate 41 is arranged opposite to the concave part of the test point 13. When the pressing head 40 presses down to the upper part of the test point 13 around the hinge point, the pressing plate 41 is located in the concave part of the test point 13.

[0030] Referring to Figure 1 and Figure 2 , a buckle 50 is arranged on the side of the test point 13 far from the pressing head 40. The buckle 50 is located on one side of the pressing head 40. The buckle 50 is made of metal. The buckle 50 is used to buckle the pressing head 40 after the pressing head 40 presses down on the test point 13. The buckle 50 is connected to the test bottom plate 30. The test bottom plate 30 is connected with an adsorption structure for controlling the locking or loosening of the buckle 50 to the pressing head 40. During the test of the display module 20, the adsorption structure controls the buckle 50 to lock the pressing head 40 to fix the display module 20, so that the display module 20 cannot be taken away before all the detection pictures are completed. After all the detection pictures are detected, the adsorption structure controls the buckle 50 to loosen, so as to facilitate the removal of the display module 20.

[0031] Referring to Figure 3 , the adsorption structure is an electromagnet 60. The electromagnet 60 is electrically connected to the test bottom plate 30. When the display module 20 is tested, the test bottom plate 30 powers on the electromagnet 60. After the electromagnet 60 is powered on, it will generate magnetism, so as to attract the metal buckle 50 to buckle down and lock the pressing head 40. Until the last detection picture of the display module 20 is tested, the test bottom plate 30 sends a signal to cut off the power supply 80 of the electromagnet 60. After the electromagnet 60 is powered off, the magnetism disappears and the buckle 50 loosens. At this time, the pressing head 40 can be opened to remove the display module 20, so as to ensure that the display module 20 will not miss the test detection pictures.

[0032] Furthermore, referring to Figure 3, a controller 70 and a power supply 80 are arranged inside the test base plate 30. The controller 70 is electrically connected to the test base plate 30 and the electromagnet 60, and the controller 70 is also electrically connected to the power supply 80. The electromagnet 60 is electrically connected to the power supply 80. During the test of the display module 20, when the controller 70 receives the signal that the test base plate 30 starts the test, it will control the power supply 80 to energize the electromagnet 60. When the test is completed, the controller 70 receives the signal that the test of the test base plate 30 is completed to disconnect the power supply 80 that energizes the electromagnet 60.

[0033] Referring to Figures 1 - 3 , the test fixture is provided with a buckle 50 and an adsorption structure for controlling the switch of the buckle 50 to fasten the pressing head 40 to fix the display module 20 during the test of the display module 20, and then loosen the buckle 50 until all the detection screens of the display module 20 are tested to prevent missing detection screens and allowing defective products to flow to the client.

[0034] The above-described embodiments merely represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A test fixture for preventing display module detection screen from missing tests, characterized in that: include: A test fixture body (10), wherein a display module (20) to be tested is accommodated on the test fixture body (10), a test point (13) connected to the display module (20) is arranged on the test fixture body (10), a pressure head (40) for pressing the connection between the display module (20) and the test point (13) is arranged on one side of the test point (13), a buckle (50) is arranged on the side of the test point (13) away from the buckle (40), the buckle (50) is used to lock the buckle (40), a test base plate (30) for testing the display module (20) is arranged inside the test fixture, and the test base plate (30) is connected to an adsorption structure for controlling the buckle (50) to lock the buckle (40) when the display module (20) is tested.

2. A test fixture for preventing display module detection screen from missing tests according to claim 1, characterized in that: The test fixture body (10) is provided with a receiving groove (11) at a position relative to the display module (20), and the display module (20) is received in the receiving groove (11).

3. A test fixture for preventing display module detection screen from missing tests according to claim 2, characterized in that: The display module (20) is bound with an FPC (21), the test fixture body (10) is provided with a placement groove (12) at a position relative to the FPC (21), the placement groove (12) is communicated with the receiving groove (11), and the FPC (21) is placed in the placement groove (12).

4. A test fixture for preventing display module detection screen from missing tests according to claim 3, characterized in that: The test point (13) is recessed downwardly along the surface of the test fixture body (10), the recessed portion of the test point (13) is connected to the placement groove (12), and one end of the FPC (21) away from the display module (20) is connected to the test point (13).

5. A test fixture for preventing display module detection screen from missing tests according to claim 4, characterized in that: The test point (13) is connected to the test base plate (30), and the test base plate (30) is provided with a test circuit for detecting the display module (20).

6. A test fixture for preventing display module detection screen from missing tests according to claim 5, characterized in that: One end of the pressure head (40) close to the test fixture body (10) is hinged to the test fixture body (10), and one end of the pressure head (40) away from the hinge point can go around the hinge point to press down on the connection between the FPC (21) and the test point (13).

7. A test fixture for preventing display module detection screen from missing tests according to claim 6, characterized in that: A pressing plate (41) is provided on one side of the pressure head (40) facing the test point (13); the pressing plate (41) is arranged opposite to a recessed portion of the test point (13); when the pressure head (40) is pressed down around a hinge point to above the test point (13), the pressing plate (41) is located in the recessed portion of the test point (13).

8. A test fixture for preventing display module detection screen from missing tests according to claim 7, characterized in that: The buckle (50) is located on one side of the pressure head (40), the buckle (50) is made of metal material, the buckle (50) is connected to the test base plate (30), and the adsorption structure controls the buckle (50) to lock or release the pressure head (40).

9. A test fixture for preventing display module detection screen from missing tests according to claim 8, characterized in that: The adsorption structure is an electromagnet (60), and the electromagnet (60) is electrically connected to the test base plate (30). When the electromagnet (60) is energized, it generates magnetism so that the buckle (50) is buckled down to lock the pressure head (40).

10. A test fixture for preventing display module detection screen from missing tests according to claim 9, characterized in that: The test base plate (30) is provided with a controller (70) and a power supply (80). The controller (70) is electrically connected to the test base plate (30) and the electromagnet (60), and the controller (70) is also electrically connected to the power supply (80). The electromagnet (60) is electrically connected to the power supply (80). The controller (70) is used to receive a signal from the test base plate (30) to control the power supply (80) to power on or off the electromagnet (60).

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