Reliability test fixture for display module

Abstract

The utility model discloses a reliability test fixture for a display module. The reliability test fixture comprises a base, a Bluetooth module, a mainboard and a switching FPC (Flexible Printed Circuit), the Bluetooth module is used for being connected with external control equipment, the Bluetooth module receives an instruction of the external control equipment and transmits the instruction to the mainboard, the switching FPC is used for being electrically connected with a to-be-tested module, the mainboard sends a test instruction to the to-be-tested module through the switching FPC, and the mainboard sends the test instruction to the to-be-tested module through the switching FPC. A to-be-tested module picture is controlled to be lightened and switched, a worker can place the whole reliability test fixture of the display module and the to-be-tested module into an experiment box to test the module, and a specific working environment can be built in the experiment box. The reliability test fixture of the display module can detect the reliability of the module in different working environments in the experiment box, compared with the prior art, the module does not need to be taken out for testing, and the accuracy of a test result is improved.

Description

Technical Field

[0001] The utility model relates to the field of jigs, and particularly to a reliability test jig for a display module. Background Art

[0002] During the R & D period or the mass production period of a display module, reliability experiments need to be carried out on the display module to ensure that the reliability of the display module meets the design specifications. The most stringent part of the reliability is the lighting operation, and the display module performs a lighting screen cycle operation under specific temperature and humidity conditions. Before this, the staff usually places the display module in an experimental chamber with specific temperature and humidity, then leaves it still for a period of time, and then takes it out to detect the picture and function of the display module. After the detection of the display module is completed, the display module is put back into the experimental chamber. However, during the process of taking the display module in and out of the experimental chamber, the temperature and humidity on the display module are constantly changing, the experimental conditions are not rigorous, which affects the detection results, and will also prolong the experimental time and delay the project progress. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a reliability test jig for a display module.

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

[0005] A reliability test jig for a display module, comprising: a base, a Bluetooth module, a main board and a transfer FPC; the Bluetooth module, the main board and the transfer FPC are arranged above the base, the Bluetooth module is used to connect with an external control device, the Bluetooth module receives instructions from the external control device and transmits them to the main board, the transfer FPC is used to be electrically connected with a module to be tested, and the main board issues test instructions to the module to be tested through the transfer FPC.

[0006] In one of the embodiments, a reliability test jig for a display module further comprises a module support frame, the module support frame is arranged above the base, and the module support frame is provided with at least one detection position for the module to be tested.

[0007] In one of the embodiments, a group of support blocks extend upward from each detection position for the module to be tested, each group of support blocks has a triangular prism structure, and one side surface of each group of support blocks is fixed to the module support frame.

[0008] In one of the embodiments, a gap is arranged between each group of support blocks.

[0009] In one of the embodiments, the material of the base is bakelite.

[0010] In one embodiment, the number of the transfer FPCs is eight, which are respectively used to electrically connect to eight modules to be tested.

[0011] In one of the embodiments, a connector is provided at the connection end between each of the transfer FPCs and the module to be tested, and the connector is snap-connected to the module to be tested.

[0012] In one embodiment, a reliability test fixture of a display module further includes an electrical box, wherein the Bluetooth module, the main board and the adapter FPC are respectively accommodated in the electrical box, and a connection end of the adapter FPC extends from the electrical box to the outside of the electrical box.

[0013] In one of the embodiments, a reliability test fixture for a display module further includes a power supply interface, and an external power supply supplies power to the Bluetooth module, the mainboard, and the switching FPC through the power supply interface.

[0014] In one of the embodiments, a reliability testing fixture for a display module also includes control buttons, which are electrically connected to the transfer FPCs, respectively, and the control buttons include a menu key, a reset key, an up key, and a down key, and the menu key, the reset key, the up key, and the down key are arranged on the outside of the electrical box.

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

[0016] The utility model discloses a reliability test fixture for a display module by setting a base, a Bluetooth module, a main board and a transfer FPC. The Bluetooth module, the main board and the transfer FPC are arranged above the base. The Bluetooth module is used to connect with an external control device. The Bluetooth module receives instructions of the external control device and transmits them to the main board. The transfer FPC is used to electrically connect with the module to be tested. The main board sends a test instruction to the module to be tested via the transfer FPC to control the lighting and switching of the screen of the module to be tested. The staff can put the entire reliability test fixture for a display module together with the module to be tested into an experimental box to test the module. A specific working environment can be created in the experimental box. The reliability test fixture for a display module can detect the reliability of the module in different working environments in the experimental box. Compared with the prior art, there is no need to take out the module for testing, which improves the accuracy of the test result. 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 are briefly introduced below.

[0018] Figure 1 This is a schematic diagram of the structure of a Bluetooth module, an electric box and a transfer FPC in an embodiment of the utility model;

[0019] Figure 2 The figure is a schematic diagram of the overall structure of a reliability test fixture for a display module in one embodiment of the utility model.

[0020] Reference numerals:

[0021] Base 10 , Bluetooth module 20 , adapter FPC 30 , connector 31 , module support frame 40 , support block 41 , electrical box 50 , control button 60 , power interface 61 . DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0023] This application proposes a reliability test fixture for display modules. Figure 1 and Figure 2 , including: a base 10, a Bluetooth module 20, a main board and a transfer FPC30, wherein the Bluetooth module 20, the main board and the transfer FPC30 are arranged above the base 10. The Bluetooth module 20 is used to connect with an external control device, and the Bluetooth module 20 receives the command of the external control device and transmits it to the main board. The transfer FPC30 is used to electrically connect with the module to be tested, and the main board sends a test command to the module to be tested through the transfer FPC30 to control the lighting and switching of the screen of the module to be tested. The staff can put the entire reliability test fixture of a display module together with the module to be tested into the experimental box to test the module. A specific working environment can be created in the experimental box, and a reliability test fixture of a display module can detect the reliability of the module in different working environments in the experimental box. Compared with the prior art, there is no need to take out the module for testing, which shortens the experimental time and improves the accuracy of the test results.

[0024] It should be noted that the mainboard is provided with a MIPI bridge chip, a Flash (or SD card) memory slot, a power conversion, a boost module, a backlight module, etc. The Flash (or SD card) memory is used to store inspection pictures, and the power conversion, boost module, and backlight module are used for level conversion, as well as the positive and negative bias voltages of the liquid crystal and the backlight source power supply required by the screen. The Bluetooth module 20 is used to connect an external Bluetooth device (a mobile phone or computer with Bluetooth function), and sends instructions to the mainboard through the host computer (app), so that the mainboard performs related operations. The material of the reliability test fixture of the entire display module is bakelite, which can withstand high temperature and high humidity, reduce the influence of the reliability test fixture of a display module itself on the module, and simulate a more realistic working environment of the module.

[0025] In one embodiment, see Figure 2A reliability test fixture for a display module further includes a module support frame 40, which is arranged above the base 10 and is used to place the module so as to detect the reliability of the module. The module support frame 40 is provided with a plurality of module detection positions to be tested, on which the module to be tested is placed, and the transfer FPC 30 is bent to the module detection position to be tested and electrically connected to the module to be tested. The mainboard issues a specific instruction to transmit an electrical signal to the module to be tested through the transfer FPC 30, so that the module to be tested can realize its function and verify its reliability.

[0026] Furthermore, a group of support blocks 41 extend upward from each detection position of the module to be tested, and a group of support blocks 41 supports one module, and an adjacent group of support blocks 41 limit the module. Moreover, each group of support blocks 41 has a triangular prism structure, and one side surface of each group of support blocks 41 is fixed to the module support frame 40, and one side surface of the support block 41 is used to support the module, so that the module is stably placed on the detection position of the module to be tested.

[0027] Furthermore, gaps are provided between each group of support blocks 41, and the support blocks 41 are provided at the edge of the same side of the module, so that the module placement is more stable and the module is prevented from falling and being damaged when a reliability test fixture of the display module collides or shakes.

[0028] Please refer again Figure 1 In one embodiment, the number of the transfer FPC30 is eight, which are respectively used to electrically connect to eight modules to be tested, so that a reliability test fixture for a display module can test the reliability of eight modules at one time, greatly improving the efficiency of detection.

[0029] Furthermore, each connection end of the adapter FPC 30 and the module to be tested is provided with a connector 31, and the connector 31 is snap-connected to the module to be tested, thereby improving the electrical connection efficiency between the adapter FPC 30 and the module, and the adapter FPC 30 can be directly snap-connected to the connection end of the module.

[0030] In one embodiment, a reliability test fixture of a display module also includes an electrical box 50, and a Bluetooth module 20, a main board and a transfer FPC 30 are respectively accommodated in the electrical box 50, so that the electrical box 50 can protect the Bluetooth module 20, the main board and the transfer FPC 30, and prevent the Bluetooth module 20, the main board and the transfer FPC 30 from being exposed to the outside world, thereby improving safety and preventing foreign objects from contacting the Bluetooth module 20, the main board and the transfer FPC 30, causing a poor test function of the reliability test fixture of a display module.

[0031] The connecting end of the transfer FPC 30 extends from the electrical box 50 to the outside of the electrical box 50 , so that the transfer FPC 30 has enough length to bend to the detection position of the module to be tested and electrically connect with the module, thereby improving the compatibility of the transfer FPC 30 with the module plug-in.

[0032] See alsoFigure 1 A reliability test fixture for a display module also includes a power interface 61. An external power source is plugged into the power interface 61 through a power cord. The power interface 61 is electrically connected to the Bluetooth module 20, the mainboard, and the adapter FPC30 for power supply. Therefore, the external power source supplies power to the Bluetooth module 20, the mainboard, and the adapter FPC30 through the power interface 61, providing the Bluetooth module 20, the mainboard, and the adapter FPC30 with the power required for their work, thereby ensuring the working energy of the Bluetooth module 20, the mainboard, and the adapter FPC30.

[0033] In addition, a reliability test fixture for a display module also includes a control button 60, which is electrically connected to the transfer FPC 30, and each control button 60 can execute an instruction to realize human-computer interaction. The control button 60 includes a menu button, a reset button, an up button, and a down button. The menu button is used to control the module to switch to the main menu page, the reset button is used to control the parameters of the module to be initialized to the factory settings, the up button is used to control the module to switch to the previous page, and the down button is used to control the module to switch to the next page. Moreover, the menu button, the reset button, the up button, and the down button are arranged on the outer surface of the electrical box 50 for user operation.

[0034] In the actual test scenario: When the display module of the experiment is placed in the experimental box, you can use a Bluetooth mobile phone or a computer with Bluetooth function to connect to the Bluetooth module of a display module reliability test fixture, and control the display module through the host computer (app) on the mobile phone or computer. When the display module needs to be checked during the experiment, you can use Bluetooth to operate the host computer (app) to control the display module to exit the loop screen program:

[0035] 1. Select screen detection, control the fixture to refresh the single screen, and select the picture to be checked to check the display module.

[0036] 2. Select TP panel function test to check the touch function of the display module. ③ You can select voltage and current test to monitor the power consumption of the display module.

[0037] These inspection data can all be saved through the host computer (app), which is convenient for data collation and aggregation, as well as traceability of experimental results. After the inspection is completed, select the cyclic refresh screen program to allow the display module to continue running the experiment. The Bluetooth module of a reliability test fixture of a display module corresponds to a Bluetooth number to avoid control confusion. A reliability test fixture of a display module in the present application can realize the inspection of the display module's picture, function, power consumption, etc. without opening the experimental box, thereby improving the detection efficiency, maintaining the temperature and humidity of the experimental environment, and ensuring the rigor of the experiment.

[0038] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to 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 utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A reliability test fixture for a display module, characterized in that: include: Base, Bluetooth module, mainboard and transfer FPC; The Bluetooth module, the main board and the adapter FPC are arranged above the base. The Bluetooth module is used to connect with an external control device. The Bluetooth module receives instructions from the external control device and transmits them to the main board. The adapter FPC is used to electrically connect with the module to be tested. The main board issues test instructions to the module to be tested through the adapter FPC.

2. The reliability test fixture of a display module according to claim 1, characterized in that: It also includes a module support frame, which is arranged above the base and is provided with at least one detection position of the module to be tested.

3. The reliability test fixture of a display module according to claim 2, characterized in that: A group of support blocks extends upward from the detection position of each module to be tested. Each group of support blocks is in a triangular prism structure. One side surface of each group of support blocks is fixed to the module support frame.

4. The reliability test fixture of a display module according to claim 3, characterized in that: A gap is arranged between each group of the support blocks.

5. The reliability test fixture of a display module according to claim 1, characterized in that: The base is made of bakelite.

6. The reliability test fixture of a display module according to claim 1, characterized in that: The number of the transfer FPCs is eight, which are respectively used to electrically connect to the eight modules to be tested.

7. The reliability test fixture of a display module according to claim 6, characterized in that: A connector is provided at the connection end between each of the transfer FPCs and the module to be tested, and the connector is buckled with the module to be tested.

8. The reliability test fixture of a display module according to claim 1, characterized in that: It also includes an electrical box, in which the Bluetooth module, the main board and the transfer FPC are respectively accommodated, and a connection end of the transfer FPC extends from the electrical box to the outside of the electrical box.

9. The reliability test fixture of a display module according to claim 1, characterized in that: It also includes a power interface, and an external power supply supplies power to the Bluetooth module, the mainboard and the switching FPC through the power interface.

10. The reliability test fixture of a display module according to claim 1, characterized in that: It also includes control buttons, which are electrically connected to the transfer FPC respectively, and the control buttons include a menu key, a reset key, an up key and a down key. The menu key, the reset key, the up key and the down key are arranged on the outside of the electrical box.

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