Multifunctional liquid crystal display testing device

Abstract

The utility model relates to the technical field of liquid crystal screen testing, in particular to a multifunctional liquid crystal screen testing device which comprises a workbench, a fixing seat is fixedly connected to the middle of the upper end of the workbench, a testing table is fixedly connected to the upper end of the fixing seat, and sliding grooves are formed in the front end and the rear end of the testing table. Limiting mechanisms are fixedly connected to the middle of the left end and the middle of the right end of the testing table, a supporting plate is fixedly connected to the rear portion of the upper end of the workbench, an extension plate is fixedly connected to the upper end of the supporting plate, a testing mechanism is fixedly installed at the lower end of the extension plate, and a control panel is arranged at the front end of the workbench. Supporting legs are fixedly connected to the four corners of the lower end of the workbench. According to the multifunctional liquid crystal screen testing device, through the arrangement of the limiting mechanism, unnecessary displacement or shaking of the liquid crystal screen under the action of pressure can be prevented, it is guaranteed that the pressure can be accurately applied, reliable data can be obtained, and the accuracy of a testing result can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal screen testing, in particular to a multifunctional liquid crystal screen testing device. Background Art

[0002] At present, common LCD TVs on the market usually include a casing, a reflective sheet, a light guide plate, other optical films and a display screen, among which the LCD display screen needs to be pressure tested during production.

[0003] During use, it is difficult to limit and fix the LCD screen in the existing LCD screen test device, which makes the LCD screen easy to shift during testing, reducing the accuracy of the test results. Therefore, we introduce a new multifunctional LCD screen test device. Utility Model Content

[0004] The main purpose of the utility model is to provide a multifunctional liquid crystal screen testing device, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A multifunctional liquid crystal screen testing device comprises a workbench, wherein a fixing seat is fixedly connected to the middle of the upper end of the workbench, a test bench is fixedly connected to the upper end of the fixing seat, sliding grooves are provided at the front and rear ends of the test bench, a limiting mechanism is fixedly connected to the middle of the left end and the middle of the right end of the test bench, a supporting plate is fixedly connected to the rear end of the upper end of the workbench, an extension plate is fixedly connected to the upper end of the support plate, a testing mechanism is fixedly installed at the lower end of the extension plate, a control panel is arranged at the front end of the workbench, and supporting legs are fixedly connected to the four corners of the lower end of the workbench.

[0007] Preferably, the limiting mechanism includes a mounting block, a fixing block is fixedly connected to the lower end of the mounting block, a No. 1 cylinder is fixedly installed on the right end of the mounting block, a push bar is fixedly installed on the output end of the No. 1 cylinder, the front and rear parts of the lower end of the push bar are fixedly connected to connecting blocks, the opposite surfaces of the two connecting blocks are fixedly connected to sliders, and the right end of the push bar is fixedly connected to an extrusion pad.

[0008] Preferably, the right end of the fixed block is fixedly connected to the test bench, and the lower end of the push bar does not contact the test bench.

[0009] Preferably, the two connecting blocks are not in contact with the test bench, and the two sliding blocks are slidably connected to the two sliding grooves respectively.

[0010] Preferably, the testing mechanism includes a No. 2 cylinder, a connecting tube is fixedly installed on the output end of the No. 2 cylinder, a connecting strip is fixedly connected to the front surface of the connecting tube, a mounting tube is fixedly connected to the front end of the connecting strip, a pressure sensor is inserted into the upper end of the mounting tube, and a locking screw is inserted into the front surface of the mounting tube.

[0011] Preferably, the No. 2 cylinder is fixedly mounted at the lower end of the extension plate, and the pressure sensor is located above the test bench.

[0012] Preferably, the end of the locking screw is in close contact with the pressure sensor.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. By setting a limit mechanism, the LCD screen to be tested is placed on the test bench. By starting two No. 1 cylinders, the two No. 1 cylinders push the two push bars to move relative to each other, so that the two extrusion pads are in close contact with the two sides of the LCD screen, so that the LCD screen is limited below the pressure sensor. The two push bars limit the LCD screen under the thrust of the No. 1 cylinder, which can prevent the LCD screen from unnecessary displacement or shaking under the pressure, ensure that the pressure can be accurately applied, obtain reliable data, and improve the accuracy of the test results;

[0015] 2. By setting up the test mechanism, insert the pressure sensor into the installation tube, and then rotate the locking screw to make the end of the locking screw close to the pressure sensor, so that the pressure sensor can be easily installed. When the pressure sensor fails later, it is also convenient to quickly disassemble, repair or replace it, reducing downtime and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a multifunctional LCD screen testing device of the utility model;

[0017] Figure 2 This is a schematic diagram of the planar structure of a multifunctional LCD screen testing device of the utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of a limiting mechanism of a multifunctional LCD screen testing device of the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the overall structure of a testing mechanism of a multifunctional LCD screen testing device.

[0020] In the figure: 1. workbench; 2. fixed seat; 3. test bench; 4. slide; 5. limit mechanism; 6. support plate; 7. extension plate; 8. test mechanism; 9. control panel; 10. support leg; 11. mounting block; 12. fixed block; 13. No. 1 cylinder; 14. push bar; 15. connecting block; 16. slider; 17. extrusion pad; 18. No. 2 cylinder; 19. connecting tube; 20. connecting bar; 21. mounting tube; 22. pressure sensor; 23. locking screw. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and 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 operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1-4 , the utility model provides a technical solution:

[0025] A multifunctional liquid crystal screen testing device comprises a workbench 1, a fixing seat 2 is fixedly connected to the middle of the upper end of the workbench 1, a test bench 3 is fixedly connected to the upper end of the fixing seat 2, a slide groove 4 is provided at the front and rear ends of the test bench 3, a limiting mechanism 5 is fixedly connected to the middle of the left end and the middle of the right end of the test bench 3, a supporting plate 6 is fixedly connected to the rear end of the upper end of the workbench 1, an extension plate 7 is fixedly connected to the upper end of the support plate 6, a testing mechanism 8 is fixedly installed at the lower end of the extension plate 7, a control panel 9 is arranged at the front end of the workbench 1, and supporting legs 10 are fixedly connected to the four corners of the lower end of the workbench 1.

[0026] In this embodiment, the limiting mechanism 5 includes a mounting block 11, a fixing block 12 is fixedly connected to the lower end of the mounting block 11, a No. 1 cylinder 13 is fixedly installed on the right end of the mounting block 11, a push bar 14 is fixedly installed on the output end of the No. 1 cylinder 13, a connecting block 15 is fixedly connected to the front and rear parts of the lower end of the push bar 14, sliders 16 are fixedly connected to the opposite surfaces of the two connecting blocks 15, an extrusion pad 17 is fixedly connected to the right end of the push bar 14, the right end of the fixed block 12 is fixedly connected to the test bench 3, the lower end of the push bar 14 is not in contact with the test bench 3, the two connecting blocks 15 are not in contact with the test bench 3, the two sliders 16 are respectively slidably connected to the two slide grooves 4, and the LCD screen is limited by the two push bars 14 under the thrust of the No. 1 cylinder 13, which can prevent the LCD screen from unnecessary displacement or shaking under pressure, ensure that the pressure can be accurately applied, obtain reliable data, and improve the accuracy of the test results.

[0027] In this embodiment, the testing mechanism 8 includes a No. 2 cylinder 18, and a connecting tube 19 is fixedly installed at the output end of the No. 2 cylinder 18. A connecting strip 20 is fixedly connected to the front surface of the connecting tube 19, and a mounting tube 21 is fixedly connected to the front end of the connecting strip 20. A pressure sensor 22 is inserted into the upper end of the mounting tube 21, and a locking screw 23 is inserted into the front surface of the mounting tube 21. The No. 2 cylinder 18 is fixedly installed at the lower end of the extension plate 7, and the pressure sensor 22 is located above the test bench 3. The end of the locking screw 23 is in close contact with the pressure sensor 22. The pressure sensor 22 is inserted into the mounting tube 21, and then the locking screw 23 is rotated to make the end of the locking screw 23 in close contact with the pressure sensor 22, so that the pressure sensor 22 is convenient to install, and when the pressure sensor 22 fails later, it is also convenient to quickly disassemble, repair or replace it, thereby reducing downtime and improving work efficiency.

[0028] It should be noted that the utility model is a multifunctional LCD screen testing device. During use, the pressure sensor 22 is inserted into the installation tube 21, and then the locking screw 23 is rotated to make the end of the locking screw 23 close to the pressure sensor 22, so that the pressure sensor 22 is easy to install, and when the pressure sensor 22 fails later, it is also convenient to quickly disassemble it for inspection or replacement, thereby reducing downtime and improving work efficiency. After the pressure sensor 22 is installed, the LCD screen to be tested is placed on the test bench 3, and the two No. 1 cylinders are started. 13. The two No. 1 cylinders 13 respectively push the two push bars 14 to move relative to each other, so that the two squeezing pads 17 are tightly attached to the two sides of the LCD screen, so that the LCD screen is limited under the pressure sensor 22. The two push bars 14 limit the LCD screen under the thrust of the No. 1 cylinder 13, which can prevent the LCD screen from unnecessary displacement or shaking under the action of pressure, ensuring that the pressure can be accurately applied to obtain reliable data, which can improve the accuracy of the test results. Then, by starting the No. 2 cylinder 18, the No. 2 cylinder 18 moves downward with the pressure sensor 22 to perform a pressure test on the LCD screen.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A multifunctional liquid crystal screen testing device, comprising a workbench (1), characterized in that: The middle part of the upper end of the workbench (1) is fixedly connected to a fixing seat (2), the upper end of the fixing seat (2) is fixedly connected to a test bench (3), the front end and the rear end of the test bench (3) are provided with sliding grooves (4), the middle part of the left end and the middle part of the right end of the test bench (3) are fixedly connected to a limiting mechanism (5), the rear part of the upper end of the workbench (1) is fixedly connected to a support plate (6), the upper end of the support plate (6) is fixedly connected to an extension plate (7), the lower end of the extension plate (7) is fixedly installed with a test mechanism (8), the front end of the workbench (1) is provided with a control panel (9), and the four corners of the lower end of the workbench (1) are fixedly connected to support legs (10); The limiting mechanism (5) comprises a mounting block (11), the lower end of the mounting block (11) is fixedly connected to a fixing block (12), the right end of the mounting block (11) is fixedly mounted to a No. 1 cylinder (13), the output end of the No. 1 cylinder (13) is fixedly mounted to a pushing bar (14), the front and rear lower ends of the pushing bar (14) are fixedly connected to connecting blocks (15), the opposing surfaces of the two connecting blocks (15) are fixedly connected to sliding blocks (16), and the right end of the pushing bar (14) is fixedly connected to a pressing pad (17).

2. A multifunctional LCD screen testing device according to claim 1, characterized in that: The right end of the fixed block (12) is fixedly connected to the test bench (3), and the lower end of the push bar (14) does not contact the test bench (3).

3. A multifunctional LCD screen testing device according to claim 1, characterized in that: The two connecting blocks (15) are not in contact with the test bench (3), and the two sliding blocks (16) are respectively slidably connected to the two sliding grooves (4).

4. A multifunctional LCD screen testing device according to claim 1, characterized in that: The testing mechanism (8) comprises a No. 2 cylinder (18), a connecting tube (19) being fixedly mounted on the output end of the No. 2 cylinder (18), a connecting strip (20) being fixedly connected to the front surface of the outer surface of the connecting tube (19), a mounting tube (21) being fixedly connected to the front end of the connecting strip (20), a pressure sensor (22) being inserted and connected to the upper end of the mounting tube (21), and a locking screw (23) being inserted and connected to the front surface of the outer surface of the mounting tube (21).

5. A multifunctional LCD screen testing device according to claim 4, characterized in that: The No. 2 cylinder (18) is fixedly mounted on the lower end of the extension plate (7), and the pressure sensor (22) is located above the test bench (3).

6. A multifunctional LCD screen testing device according to claim 4, characterized in that: The end of the locking screw (23) is in close contact with the pressure sensor (22).

Images