Liquid crystal module display testing device
Patent Information
- Application Number
- CN202420951282.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-05-06
AI Technical Summary
[0002]目前M IPI接口液晶显示模组在生产测试时需要专用的M IPI接口液晶显示模组驱动测试治具，不同类型的M IPI接口液晶显示模需要专业技术人员二次开发编写不同的测试程序，并将程序烧录到M IPI接口液晶显示模组驱动测试治具中，M IPI接口液晶显示模组驱动测试治具才可以正常驱动M IPI接口液晶显示模组进行测试，上述M IPI接口液晶显示模组测试方法需要有专业技术人员二次开发编写程序，生产测试时需要管理种类繁多的程序，过程复杂，测试效率低，测试数据不可记录和追溯，为提高液晶显示模组测试效率、测试治具智能性，开发一种基于Wi ndows系统应用程序，通过type-C接口连接DP信号转MIPI信号桥接模块和程控电源，驱动M IPI接口液晶显示模组显示进行测试
[0017] 1. The screw can be rotated inside the test seat. At this time, the screw will drive the rubber pad to move upwards, and the rubber pad will apply squeeze pressure to the fixed seat, thereby completing the limit fixation of its position, making the processing position more convenient. At this time, the LCD module can be detected through the test head. The upper-level application of the Windows system outputs the control signal of the program-control power supply through the USB signal in the PC type-C interface, controls the program-control power supply to output the appropriate current and voltage required for the M IP I interface liquid crystal display module, and makes appropriate configurations for the DP signal to M IP I signal bridge module. Finally, the DP signal in the type-C interface outputs the signal required for the M IPI interface liquid crystal display module, and finally realizes the display test of the MIPI interface liquid crystal display module, making the test more convenient;
Smart Images
Figure CN222762652U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid crystal display module testing, in particular to a liquid crystal module display testing device. Background Art
[0002] At present, a dedicated M IPI interface LCD module driver test fixture is required during production testing of M IPI interface LCD modules. Different types of M IPI interface LCD modules require professional technicians to secondary develop and write different test programs, and burn the programs into the M IPI interface LCD module driver test fixture. Only then can the M IPI interface LCD module driver test fixture drive the M IPI interface LCD module for testing. The above-mentioned M IPI interface LCD module testing method requires professional technicians to secondary develop and write programs. During production testing, a wide variety of programs need to be managed, the process is complicated, the test efficiency is low, and the test data cannot be recorded and traced. In order to improve the test efficiency of LCD modules and the intelligence of test fixtures, a Windows system-based application is developed. The DP signal to MIPI signal bridge module and the programmable power supply are connected through the type-C interface to drive the M IPI interface LCD module display for testing.
[0003] However, when testing a liquid crystal display module, it is necessary to clamp the liquid crystal display module on a test bench, otherwise the liquid crystal display module may be damaged during the test. At the same time, when testing liquid crystal display modules of different sizes and models, different fixtures need to be replaced for clamping, which increases the labor intensity of workers when replacing fixtures. Utility Model Content
[0004] 1. Technical issues to be solved
[0005] In view of the deficiencies in the prior art, the utility model provides a liquid crystal module display testing device, which solves the problem that the liquid crystal display module needs to be clamped on a test bench when testing the liquid crystal display module, otherwise the liquid crystal display module will be damaged during the test. At the same time, when testing liquid crystal display modules of different sizes and models, different clamps need to be replaced for clamping, which increases the labor intensity brought by workers when replacing clamps.
[0006] (II) Technical solution
[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:
[0008] A liquid crystal module display test device comprises a test seat, wherein a fixing bar is symmetrically fixedly installed on the upper end of the test seat, and a dovetail groove is provided on the upper ends of the two fixing bars, a screw is threadedly installed at the center of the inner part of the test seat, and a rubber pad is fixedly installed on the upper end of the screw.
[0009] Wherein, a vertical rod is fixedly mounted on the test seat, and a test head is fixedly mounted on the vertical rod;
[0010] A fixing mechanism is slidably installed inside the two dovetail grooves;
[0011] The fixing mechanism comprises a slide seat, which is slidably mounted in two dovetail grooves. An inner groove is provided at the center of the upper end of the slide seat, and the screw rod is arranged in the inner groove.
[0012] Preferably, a fixing seat is fixedly mounted on the upper end of the slide seat, and L-shaped grooves are provided on both side walls of the fixing seat.
[0013] Preferably, the upper end of the fixed seat is symmetrically provided with a slide bar, the lower ends of the two slide bars are symmetrically fixedly installed with an L-shaped block, and the two groups of L-shaped blocks are respectively slidably installed in the two L-shaped grooves.
[0014] Preferably, a slot is provided at the upper end of the slide bar, and clamping blocks are slidably installed in both groups of the slots.
[0015] Preferably, springs are symmetrically fixedly installed in the two clamping blocks, and the ends of the two groups of springs away from the two clamping blocks are fixedly connected to the two slide bars respectively.
[0016] (III) Beneficial effects
[0017] 1. The screw can be rotated inside the test seat. At this time, the screw will drive the rubber pad to move upward, and then the rubber pad will apply extrusion force to the fixing seat, thereby completing the limit fixation, making the processing position adjustment more convenient. At this time, the LCD module can be tested through the test head. The upper application of the Windows system outputs the control signal of the programmable power supply through the USB signal in the PC type-C interface, controls the programmable power supply to output the appropriate current and voltage required by the MIP I interface LCD display module, and configures the DP signal to MIP I signal bridge module appropriately. Finally, the DP signal in the type-C interface outputs the signal required by the MIP I interface LCD display module, and finally realizes the display test of the driving MIPI interface LCD display module, making the test more convenient;
[0018] Second, the movement of the two slide bars will drive the two groups of L-shaped blocks to slide inside the two L-shaped grooves. At this time, the two slide bars will drive the two clamping blocks to move accordingly. After adjusting to a suitable fixed position, the two clamping blocks can be released. At this time, the two clamping blocks will complete the clamping and fixing of the LCD module under the action of the spring, so that the placement of the LCD module is more stable when the device is in use, and the spring design makes it difficult to damage the LCD module during the clamping process. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.
[0020] Figure 1 It is a three-dimensional structural diagram of the utility model;
[0021] Figure 2 This is a diagram of the connection structure of the fixing strip of the utility model;
[0022] Figure 3 This is an exploded structural diagram of the slide connection of the utility model;
[0023] Figure 4 This is an exploded structural diagram of the clamp block connection of the utility model;
[0024] Figure 5 This is an operation flow chart of the test head of the utility model.
[0025] Legend: 11. Test seat; 12. Fixing bar; 13. Dovetail groove; 14. Screw; 15. Rubber pad; 16. Vertical rod; 17. Test head; 21. Sliding seat; 22. Inner groove; 23. Fixing seat; 24. L-shaped groove; 25. Sliding bar; 26. L-shaped block; 27. Slot; 28. Clamp block; 29. Spring. DETAILED DESCRIPTION
[0026] The embodiment of the present application provides a liquid crystal module display testing device, which effectively solves the problem that the liquid crystal display module needs to be clamped on a test bench when testing the liquid crystal display module, otherwise the liquid crystal display module may be damaged during the test. At the same time, when testing liquid crystal display modules of different sizes and models, different clamps need to be replaced for clamping, which increases the labor intensity brought by workers when replacing clamps.
[0027] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the technical solution in the embodiment of the present application effectively solves the problem that the liquid crystal display module needs to be clamped on the test bench when testing the liquid crystal display module, otherwise the liquid crystal display module will be damaged during the test. At the same time, different clamps need to be replaced for clamping when testing liquid crystal display modules of different sizes and models, which increases the labor intensity of workers when replacing clamps. The overall idea is as follows: a liquid crystal module display test device includes a test seat 11, and the upper end of the test seat 11 is symmetrically fixed with a fixing bar 12, and the upper ends of the two fixing bars 12 are provided with a dovetail groove 13, and a screw 14 is threadedly installed at the center of the inner part of the test seat 11, and a rubber pad 15 is fixedly installed on the upper end of the screw 14.
[0028] Among them, a vertical rod 16 is fixedly installed on the test seat 11, and a test head 17 is fixedly installed on the vertical rod 16. The test system of the test head 17 is divided into four parts: a Windows system upper application, a DP to M IPI bridge module, a programmable power supply, and a barcode scanner. The Windows system upper application includes a user management module, a configuration module, a test process module, a product ID scanning and identification module, and a communication control module;
[0029] A fixing mechanism is slidably installed inside the two dovetail grooves 13;
[0030] The fixing mechanism includes a slide 21, which is slidably installed in the two dovetail grooves 13. An inner groove 22 is opened at the center of the upper end of the slide 21, and the screw 14 is arranged in the inner groove 22. A fixed seat 23 is fixedly installed on the upper end of the slide 21. L-shaped grooves 24 are opened on both side walls of the fixed seat 23. Slide bars 25 are symmetrically arranged on the upper end of the fixed seat 23. L-shaped blocks 26 are symmetrically fixedly installed on the lower ends of the two slide bars 25. Two groups of L-shaped blocks 26 are respectively slidably installed in the two L-shaped grooves 24. The slide bars 25 A slot 27 is provided at the upper end, and a clamping block 28 is slidably installed in the two sets of slots 27, and a spring 29 is symmetrically fixedly installed in the two clamping blocks 28. The ends of the two sets of springs 29 away from the two clamping blocks 28 are respectively fixedly connected to the two slide bars 25. When in use, the liquid crystal module can be placed on the fixed seat 23 first, and then the two clamping blocks 28 can be pulled upwards, and then the two springs 29 will be compressed. At this time, the two slide bars 25 can be moved according to the size of the liquid crystal module. Under the movement of the two slide bars 25, the two slide bars 25 will be respectively brought The two groups of L-shaped blocks 26 are moved to slide inside the two L-shaped grooves 24, and the two slide bars 25 will drive the two clamping blocks 28 to move accordingly. When adjusted to a suitable fixed position, the two clamping blocks 28 can be loosened at this time. At this time, the two clamping blocks 28 will complete the clamping and fixing of the liquid crystal module under the action of the spring 29, so that the placement of the liquid crystal module of the device is more stable when in use, and the design of the spring 29 makes it difficult to cause damage to the liquid crystal module during the clamping process; when the liquid crystal module is fixed, the fixed seat 23 can be moved at this time, and the sliding seat 21 will be driven to slide inside the dovetail groove 13 under the movement of the fixed seat 23. When the fixed seat 23 moves to a suitable detection position with the liquid crystal module, the screw 14 can be rotated inside the test seat 11 at this time, and the screw 14 will drive the rubber pad 15 to move upward, and then the rubber pad 15 will apply an extrusion force to the fixed seat 23, thereby completing the limit fixation thereof, making the processing position adjustment more convenient. At this time, the liquid crystal module can be detected by the test head 17. The host application of the ndows system outputs the control signal of the programmable power supply through the USB signal in the PC type-C interface, controls the programmable power supply to output the appropriate current and voltage required by the MIPI interface LCD display module, and appropriately configures the DP signal to MIPI signal bridge module. Finally, the DP signal in the type-C interface outputs the signal required by the MIPI interface LCD display module, and finally realizes the display test of driving the MIPI interface LCD display module, making the test more convenient.
[0031] In view of the problems existing in the prior art, the utility model provides a liquid crystal module display test device, which can rotate the screw 14 inside the test seat 11. At this time, the screw 14 will drive the rubber pad 15 to move upward, and then the rubber pad 15 will apply an extrusion force to the fixing seat 23, thereby completing the limit fixation thereof, making the processing position adjustment more convenient. At this time, the liquid crystal module can be detected by the test head 17, and the upper application of the Wi ndows system outputs the control signal of the programmable power supply through the USB signal in the PC type-C interface, controls the programmable power supply to output the appropriate current and voltage required by the MIPI interface liquid crystal display module, and appropriately configures the DP signal to MIPI signal bridge module, and finally outputs the signal required by the MIPI interface liquid crystal display module through the DP signal in the type-C interface, and finally realizes the display test of the driving MIPI interface liquid crystal display module, making the test more convenient.
[0032] Working principle:
[0033] In the first step, when using, the liquid crystal module can be placed on the fixing seat 23, and then the two clamping blocks 28 can be pulled upwards, and then the two springs 29 will be compressed. At this time, the two slide bars 25 can be moved according to the size of the liquid crystal module. The movement of the two slide bars 25 will drive the two groups of L-shaped blocks 26 to slide inside the two L-shaped grooves 24, and then the two slide bars 25 will drive the two clamping blocks 28 to move. After adjusting to a suitable fixed position, the two clamping blocks 28 can be released. At this time, the two clamping blocks 28 will complete the clamping and fixing of the liquid crystal module under the action of the springs 29, so that the placement of the liquid crystal module is more stable when the device is used, and through the design of the springs 29, it is not easy to cause damage to the liquid crystal module during the clamping process;
[0034] In the second step, after the liquid crystal module is fixed, the fixed seat 23 can be moved. The movement of the fixed seat 23 will drive the slide seat 21 to slide inside the dovetail groove 13. When the fixed seat 23 moves to a suitable detection position with the liquid crystal module, the screw 14 can be rotated inside the test seat 11. At this time, the screw 14 will drive the rubber pad 15 to move upward, and then the rubber pad 15 will apply an extrusion force to the fixed seat 23, thereby completing the limit fixation thereof, making the processing position adjustment more convenient. At this time, the liquid crystal module can be tested through the test head 17. The upper application of the Wi ndows system outputs the control signal of the programmable power supply through the USB signal in the PC type-C interface, controls the programmable power supply to output the appropriate current and voltage required by the MIPI interface liquid crystal display module, and appropriately configures the DP signal to MIPI signal bridge module. Finally, the DP signal in the type-C interface outputs the signal required by the MIPI interface liquid crystal display module, and finally realizes the display test of the driving MIPI interface liquid crystal display module, making the test more convenient.
[0035] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.
Claims
1. A liquid crystal module display test device, comprising a test seat (11), wherein a fixing bar (12) is symmetrically fixedly mounted on the upper end of the test seat (11), and a dovetail groove (13) is provided on the upper ends of the two fixing bars (12), wherein: A screw rod (14) is threadedly mounted at the center of the test seat (11), and a rubber pad (15) is fixedly mounted on the upper end of the screw rod (14). Wherein, a vertical rod (16) is fixedly mounted on the test seat (11), and a test head (17) is fixedly mounted on the vertical rod (16); A fixing mechanism is slidably installed inside the two dovetail grooves (13); The fixing mechanism comprises a sliding seat (21), and the sliding seat (21) is slidably mounted in two dovetail grooves (13).
2. A liquid crystal module display test device as claimed in claim 1, characterized in that: An inner groove (22) is provided at the center of the upper end of the slide seat (21); Wherein, the screw rod (14) is arranged in the inner groove (22).
3. A liquid crystal module display test device as claimed in claim 2, characterized in that: A fixing seat (23) is fixedly mounted on the upper end of the sliding seat (21); Wherein, L-shaped grooves (24) are provided on both side walls of the fixing seat (23).
4. A liquid crystal module display test device as claimed in claim 3, characterized in that: The upper end of the fixing seat (23) is symmetrically provided with a sliding bar (25); Wherein, L-shaped blocks (26) are symmetrically fixedly installed at the lower ends of the two slide bars (25), and the two groups of L-shaped blocks (26) are slidably installed in the two L-shaped grooves (24) respectively.
5. A liquid crystal module display test device as claimed in claim 4, characterized in that: A slot (27) is provided at the upper end of the slide bar (25); Wherein, clamping blocks (28) are slidably installed in both groups of the slots (27).
6. A liquid crystal module display test device as claimed in claim 5, characterized in that: Springs (29) are symmetrically fixedly installed in the two clamping blocks (28); Wherein, one end of the two groups of springs (29) away from the two clamping blocks (28) is fixedly connected to the two slide bars (25) respectively.