Electrical testing tool for display module

Abstract

A display module electrical testing tool comprises a substrate and a display module, and a first display screen electrically connected with a probe assembly and a second display screen electrically connected with the probe assembly are arranged at the center of the front face of the substrate body and the left side of the bottom of the substrate body respectively; a first magnetic attraction positioning hole and a second magnetic attraction positioning hole are formed in the left side and the right side of the top of the front face of the first display screen electrically connected with the probe assembly respectively, and a display screen touch control communication interface is formed in the first display screen electrically connected with the probe assembly. According to the display module electric testing tool, the testing surface cover is arranged on the testing tool, and the LED lamp and the conductive foam are arranged on the testing surface cover, so that the display module electric testing tool achieves the purpose of performing display, touch control and PVD function rapid detection before the display module is attached.

Description

Technical Field

[0001] The utility model relates to the technical field of display module detection, in particular to an electrical measurement tooling for a display module. Background Art

[0002] With the progress of technology and the improvement of living standards, intelligent wearable devices such as watches / bracelets are becoming more and more common, and the functions integrated on the products are also becoming more comprehensive, such as ECG monitoring electrocardiogram, NFC payment and other functions. At present, mid- to high-end wearable products on the market all integrate the ECG function, and a PVD film layer is usually set on the display module. After the cover plate is attached, the module manufacturer then conducts the detection of the ECG function. Since the PVD film layer is easily scratched and damaged during the production process, the defect rate of this test item is high, resulting in large losses in the later stage of module production and high product prices. Therefore, a fixture solution that can quickly detect the display, touch and PVD functions before the display module is attached is now designed to detect PVD defects in advance and improve the production yield of the module finished products. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide an electrical measurement tooling for a display module.

[0004] The purpose of the utility model is realized by the following technical solutions:

[0005] An electrical measurement tooling for a display module, comprising: a substrate and a display module. A first display screen electrical connection probe assembly and a second display screen electrical connection probe assembly are respectively arranged at the center of the front surface and the left side of the bottom of the substrate body. On the top of the front surface of the first display screen electrical connection probe assembly, a first magnetic adsorption positioning hole and a second magnetic adsorption positioning hole are respectively arranged on the left and right sides. A display screen touch communication interface is arranged on the first display screen electrical connection probe assembly. A test cover plate is arranged at the bottom of the front surface of the first display screen electrical connection probe assembly. LED lights are arranged on both sides of the bottom of the front surface of the test cover plate. Two third magnetic adsorption positioning holes are arranged on the front surface of the second display screen electrical connection probe assembly. A display screen communication interface is arranged on the front surface of the second display screen electrical connection probe assembly. The display module is arranged on the right side of the bottom of the front surface of the substrate. The display module includes a display screen, a touch FPC arranged on the top of the display screen, and a display FPC arranged on the bottom of the display screen. PVD and PAD contact points are arranged on the left and right sides of the connection between the touch FPC and the display screen.

[0006] In one embodiment, the metal PINs at the top of the touch FPC are located on the right side of the bottom of the front surface of the first display screen electrical connection probe assembly, and the metal PINs of the display FPC are located on the right side of the front surface of the second display screen electrical connection probe assembly.

[0007] In one embodiment, the touch FPC metal PIN is interconnected with the touch communication interface of the display screen, and the metal PIN of the display FPC is interconnected with the communication interface of the display screen.

[0008] In one embodiment, the first magnetic attraction positioning hole is arranged at the left bottom of the front side of the touch communication interface of the display screen, and the second magnetic attraction positioning hole is arranged at the right top of the front side of the touch communication interface of the display screen.

[0009] In one embodiment, the two third magnetic attraction positioning holes are respectively arranged at the top and bottom of the communication interface of the display screen.

[0010] In one embodiment, the test face cover is arranged at the position where the touch FPC is electrically connected to the probe assembly of the first display screen, and is rotationally connected through a hinge. A conductive foam is arranged at a position on the back of the test face cover corresponding to the contact points of the PVD and PAD.

[0011] In one embodiment, a touch drive board power interface is arranged on the left side of the back of the bottom block of the substrate, and a display drive board power interface is arranged on the back of the right plate body of the substrate.

[0012] In one embodiment, the touch drive board power interface is electrically connected to the probe assembly electrically connected to the first display screen, and the display drive board power interface is electrically connected to the probe assembly electrically connected to the second display screen.

[0013] In one embodiment, a storage board is arranged on the right side of the bottom of the front side of the substrate. The storage board is located between the probe assembly electrically connected to the first display screen and the probe assembly electrically connected to the second display screen, and the display module is placed on the storage board.

[0014] In one embodiment, the heights of the probe assembly electrically connected to the first display screen, the probe assembly electrically connected to the second display screen, and the storage board are all adapted to each other.

[0015] Compared with the prior art, the present utility model has at least the following advantages:

[0016] The electrical testing tooling for the display module of the present utility model enables the metal PINs of the first display screen electrically connected to the probe assembly and the second display screen electrically connected to the probe assembly to be interconnected with the two FPCs of the display module, thereby achieving the display and touch detection of the display module. At the same time, through the two PVD and PAD contact points provided on the display screen, the display screen can realize the ECG function. And through the test cover provided on the test fixture and the LED lights and conductive foam provided on the test cover, when the cover is buckled, the conductive foam of the test cover can be in full contact with the PVD and PAD on the display screen, so that the wires are connected. When the LED light is on, the PVD test result is Pass, otherwise it is NG. Therefore, the electrical testing tooling for the display module achieves the purpose of quickly detecting the display, touch, and PVD functions before the display module is bonded. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic diagram of the overall structure of the top view of the electrical testing tooling for the display module of the present utility model;

[0019] Figure 2 It is a schematic diagram of the overall structure of the front view of the electrical testing tooling for the display module of the present utility model;

[0020] Figure 3 It is a schematic diagram of the overall structure of the side view of the electrical testing tooling for the display module of the present utility model.

[0021] In the figure: 1. Substrate; 11. Probe assembly electrically connected to the first display screen; 12. First magnetic attraction positioning hole; 13. Second magnetic attraction positioning hole; 14. Display screen touch communication interface; 15. LED light; 16. PVD and PAD contact points; 17. Third magnetic attraction positioning hole; 18. Display screen communication interface; 19. Probe assembly electrically connected to the second display screen; 101. Touch drive board power interface; 102. Display drive board power interface; 103. Test cover; 2. Display module; 21. Touch FPC; 22. Display FPC. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] 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. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0023] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application.

[0024] Unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0026] Such as Figures 1-3As shown in the figure, a display module electrical measurement tooling includes: a substrate 1 and a display module 2. A first display screen electrical connection probe assembly 11 and a second display screen electrical connection probe assembly 19 are respectively arranged at the center of the front side and the left side of the bottom of the substrate 1 body. On the top of the front side of the first display screen electrical connection probe assembly 11, a first magnetic attraction positioning hole 12 and a second magnetic attraction positioning hole 13 are respectively arranged on the left and right sides. A display screen touch communication interface 14 is arranged on the first display screen electrical connection probe assembly 11. A test face cover 103 is arranged at the bottom of the front side of the first display screen electrical connection probe assembly 11. LED lights 15 are arranged on both sides of the bottom of the front side of the test face cover 103. Two third magnetic attraction positioning holes 17 are arranged on the front side of the second display screen electrical connection probe assembly 19. A display screen communication interface 18 is arranged on the front side of the second display screen electrical connection probe assembly 19. The display module 2 is arranged on the right side of the bottom of the front side of the substrate 1. The display module 2 includes a display screen, a touch FPC 21 arranged on the top of the display screen, and a display FPC 22 arranged on the bottom of the display screen. PVD and PAD contact points 16 are arranged on the left and right sides of the connection part between the touch FPC 21 and the display screen. It should be noted that the bottom of the test face cover 103 is made of a metal material, and the length just covers the PVD and PAD contact points 16 arranged on the front side of the display screen of the display module 2, so that the two PVD and PAD contact points 16 can be in contact with the back of the test face cover 103 to perform electrical detection on them.

[0027] As Figures 1-3 shown, in an embodiment, the metal PIN on the top of the touch FPC 21 is located on the right side of the bottom of the front side of the first display screen electrical connection probe assembly 11, and the metal PIN of the display FPC 22 is located on the right side of the front side of the second display screen electrical connection probe assembly 19. The metal PIN of the touch FPC 21 is connected to the display screen touch communication interface 14, and the metal PIN of the display FPC 22 is connected to the display screen communication interface 18. It should be noted that this design enables the display module electrical measurement tooling to detect the display function and touch function of the display module 2.

[0028] As Figures 1-3 shown, in an embodiment, the first magnetic attraction positioning hole 12 is arranged at the left bottom of the front side of the display screen touch communication interface 14, and the second magnetic attraction positioning hole 13 is arranged at the right top of the front side of the display screen touch communication interface 14. The two third magnetic attraction positioning holes 17 are respectively arranged at the top and bottom of the display screen communication interface 18. It should be noted that this design improves the alignment accuracy.

[0029] As Figures 1-3As shown, in one embodiment, the test cover 103 is disposed at the position where the touch FPC 21 and the probe assembly 11 for electrically connecting the first display screen are connected to each other, and is rotatably connected by a hinge. A conductive foam is disposed at a position on the back of the block of the test cover 103 corresponding to the PVD and PAD contact points 16. It should be noted that the side of the test cover 103 close to the display screen is made of metal material, and two LED lights 15 are electrically connected thereto.

[0030] As Figures 1-3 shown, in one embodiment, a touch drive board power interface 101 is disposed on the left side of the back of the bottom block of the substrate 1, and a display drive board power interface 102 is disposed on the back of the right plate body of the substrate 1. The touch drive board power interface 101 is electrically connected to the probe assembly 11 for electrically connecting the first display screen, and the display drive board power interface 102 is electrically connected to the probe assembly 19 for electrically connecting the second display screen. It should be noted that this design enables the substrate 1 to be connected to an external power source, thereby conducting the power to the display module 2.

[0031] As Figures 1-3 shown, in one embodiment, a storage board is disposed on the right side of the bottom of the front surface of the substrate 1. The storage board is located between the probe assembly 11 for electrically connecting the first display screen and the probe assembly 19 for electrically connecting the second display screen, and the display module 2 is placed on the storage board. The heights of the probe assembly 11 for electrically connecting the first display screen, the probe assembly 19 for electrically connecting the second display screen, and the storage board are all adapted to each other. It should be noted that this design facilitates the staff to fix the display module 2 to be detected on the substrate 1.

[0032] The above embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be pointed out 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 display module electrical testing tooling, characterized in that, Including: A substrate (1) and a display module (2), wherein a first display screen electrical connection probe assembly (11) and a second display screen electrical connection probe assembly (19) are respectively arranged at the center of the front surface and the left side of the bottom of the substrate (1) board body; On the top of the front surface of the first display screen electrical connection probe assembly (11), a first magnetic attraction positioning hole (12) and a second magnetic attraction positioning hole (13) are respectively arranged on the left and right sides. A display screen touch communication interface (14) is arranged on the first display screen electrical connection probe assembly (11). A test cover (103) is arranged at the bottom of the front surface of the first display screen electrical connection probe assembly (11). LED lights (15) are arranged on both sides of the bottom of the front surface of the test cover (103); On the front surface of the second display screen electrical connection probe assembly (19), two third magnetic attraction positioning holes (17) are arranged. A display screen communication interface (18) is arranged on the front surface of the second display screen electrical connection probe assembly (19); The display module (2) is arranged on the right side of the bottom of the front surface of the substrate (1). The display module (2) includes a display screen, a touch FPC (21) arranged on the top of the display screen, and a display FPC (22) arranged on the bottom of the display screen. PVD and PAD contact points (16) are arranged on the left and right sides of the connection part between the touch FPC (21) and the display screen.

2. The electrical test tooling for a display module according to claim 1, wherein The metal PINs on the top of the touch FPC (21) are located on the right side of the bottom of the front surface of the first display screen electrical connection probe assembly (11), and the metal PINs of the display FPC (22) are located on the right side of the front surface of the second display screen electrical connection probe assembly (19).

3. The electrical test tooling for a display module according to claim 1, wherein The metal PINs of the touch FPC (21) are connected to each other with the display screen touch communication interface (14), and the metal PINs of the display FPC (22) are connected to each other with the display screen communication interface (18).

4. The electrical test tooling for a display module according to claim 1, wherein The first magnetic attraction positioning hole (12) is arranged at the bottom left of the front surface of the display screen touch communication interface (14), and the second magnetic attraction positioning hole (13) is arranged at the top right of the front surface of the display screen touch communication interface (14).

5. The electrical test tooling for a display module according to claim 1, wherein The two third magnetic attraction positioning holes (17) are respectively arranged at the top and bottom of the display screen communication interface (18).

6. The electrical test tooling for a display module according to claim 1, wherein The test cover (103) is arranged at the connection position between the touch FPC (21) and the first display screen electrical connection probe assembly (11), and is rotationally connected through a hinge. A conductive foam is arranged at the position of the block on the back of the test cover (103) corresponding to the PVD and PAD contact points (16).

7. The electrical test tooling for a display module according to claim 1, wherein A touch drive board power interface (101) is arranged on the back of the left block of the bottom of the substrate (1), and a display drive board power interface (102) is arranged on the back of the right board body of the substrate (1).

8. The electrical test tooling for a display module according to claim 7, wherein The touch drive board power interface (101) is electrically connected to the first display screen electrical connection probe assembly (11), and the display drive board power interface (102) is electrically connected to the second display screen electrical connection probe assembly (19).

9. The electrical measurement tooling for a display module according to claim 1, wherein A storage board is provided on the right side at the bottom of the front surface of the substrate (1). The storage board is located between the probe assembly (11) electrically connected to the first display screen and the probe assembly (19) electrically connected to the second display screen, and the display module (2) is placed on the storage board.

10. The display module electrical measurement tooling according to claim 9, wherein, The heights among the probe assembly (11) electrically connected to the first display screen, the probe assembly (19) electrically connected to the second display screen, and the storage board are all mutually adapted.

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