An inspection apparatus for a liquid crystal display panel

Abstract

The utility model relates to liquid crystal panel detection technical field, concretely is a kind of check equipment of liquid crystal display panel, it includes: detection platform, the top surface fixed mounting of detection platform has two side plates, the same lifting frame is slidably installed between two side plates, the lifting frame is slidably installed in mobile plate, the bottom surface of mobile plate is equipped with glasses cloth, when detecting scratch on the surface of liquid crystal display, liquid crystal display is placed on the top surface of detection platform, motor B is started to drive second shaft to rotate, when second shaft rotates, one of rack is moved by first movable rod, movable seat, second movable rod, when one of rack moves, it will drive gear to rotate, when gear rotates, it will drive another rack to move, when two racks move, the interval of two clamping plates is adjusted by two sliders, so that two clamping plates clamp liquid crystal display.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal panel testing technology, specifically to an inspection device for liquid crystal display panels. Background Technology

[0002] The LCD panel is the material that determines the brightness, contrast, color, and viewing angle of an LCD monitor. The price trend of the LCD panel directly affects the price of the LCD monitor, and the quality and technology of the LCD panel are related to the overall performance of the LCD monitor.

[0003] LCD panels need to undergo quality inspection before leaving the factory. Among them, scratch detection is a crucial part of the inspection. Existing methods for scratch detection on LCD panels include manual visual inspection and inspection using external equipment. Manual visual inspection is difficult to identify fine scratches, while external equipment inspection is affected by dust, lint, or dirt adhering to the screen surface, which can interfere with the inspection process. Therefore, we propose an inspection device for LCD display panels. Utility Model Content

[0004] The purpose of this invention is to provide an inspection device for liquid crystal display panels to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An inspection device for liquid crystal display panels, comprising: The testing table has two side plates fixedly installed on its top surface. A lifting frame is slidably installed between the two side plates. A movable plate is slidably installed inside the lifting frame. A spectacle cloth is provided on the bottom surface of the movable plate. A connecting plate is fixedly installed on the top surface of each of the two side plates. A top frame is fixedly installed on the top of the two connecting plates. A fixed box is fixedly installed on one side of a movable plate, and multiple nozzles are fixedly installed on the bottom surface of the fixed box. A movable stage is slidably installed on the other side of the movable plate, and an industrial camera is fixedly installed on the bottom surface of the movable stage. A movable component, which is disposed within the lifting frame and is used to move the movable plate; Two clamping plates are slidably mounted on the top surface of the testing table; An adjustment component is disposed on the bottom surface of the detection table and is used to move the two clamping plates. A lifting assembly is mounted on two connecting plates and is used to drive the lifting frame to rise and fall.

[0006] Preferably, the moving assembly includes two fixed platforms, which are fixedly installed on the inner side wall of the lifting frame. The same lead screw is rotatably installed between the two lifting frames. The lead screw is threadedly connected to the moving plate. A motor A is fixedly installed on one side of one of the fixed platforms. One end of the output shaft of the motor A is fixedly connected to one end of the lead screw. When the eyeglass cloth comes into contact with the surface of the LCD display, the motor A is started to drive the lead screw to rotate. When the lead screw rotates, it will drive the moving plate to move within the lifting frame, which facilitates the eyeglass cloth to clean the stains on the surface of the LCD display.

[0007] Preferably, the adjustment assembly includes two racks slidably mounted on the bottom surface of the testing platform. A gear is rotatably mounted on the bottom surface of the testing platform, and the two racks are located on both sides of the gear, meshing with it. Two grooves are formed on the bottom surface of the testing platform, and sliders are slidably mounted in each groove. The top ends of the two sliders are fixedly connected to the bottom surfaces of two clamping plates, and the bottom ends of the two sliders are fixedly connected to the bottom surfaces of the two racks. When one rack moves, it drives the gear to rotate, and when the gear rotates, it drives the other rack to move. When both racks move, the distance between the two clamping plates is adjusted by the two sliders, so that the two clamping plates clamp the liquid crystal display.

[0008] Preferably, the adjustment assembly further includes two base plates, which are fixedly installed on the bottom surface of the testing platform. A second rotating shaft is rotatably installed between the two base plates. A first movable rod is fixedly installed on the second rotating shaft. A movable seat is fixedly installed on one side of one of the racks. A second movable rod is rotatably installed inside the movable seat. One side of the second movable rod is rotatably connected to one side of the first movable rod. A motor B is fixedly installed on one side of one of the base plates. One end of the motor B is fixedly connected to one end of the second rotating shaft. When the motor B is started, it drives the second rotating shaft to rotate. When the second rotating shaft rotates, it drives one of the racks to move through the first movable rod, the movable seat, and the second movable rod.

[0009] Preferably, the lifting assembly includes a first rotating shaft, which is rotatably mounted in two connecting plates. Connecting seats are fixedly mounted on the top surfaces of both fixed platforms, and first connecting rods are rotatably mounted in each of the two connecting seats. Two second connecting rods are fixedly mounted on the outer wall of the first rotating shaft, with one side of each of the two second connecting rods rotatably connected to one side of each of the two first connecting rods. A motor C is fixedly mounted on one side of one of the connecting plates, with one end of the output shaft of the motor C fixedly connected to one end of the first rotating shaft. Starting the motor C drives the first rotating shaft to rotate. When the first rotating shaft rotates, the lifting frame moves up and down between the two side plates via the second connecting rods, the first connecting rods, the connecting seats, and the fixed platforms. When the lifting frame descends, the moving plate descends along with the lifting frame. When the moving plate descends to a certain position, the eyeglass cloth contacts the surface of the liquid crystal display.

[0010] Preferably, support legs are fixedly installed at the four corners of the bottom surface of the testing platform, and multiple lights are fixedly installed on the bottom surface of the top frame. When detecting scratches on the surface of the liquid crystal display, turning on the multiple lights will illuminate the surface of the liquid crystal display, making the scratches on the surface of the liquid crystal display more obvious and making it easier to see the location of the scratches.

[0011] Preferably, a water storage tank is fixedly installed on the top surface of the top frame, and a water delivery hose is provided on the water storage tank. The bottom end of the water delivery hose is fixedly connected to the fixed box, and the water in the water storage tank is delivered to the fixed box through the water delivery hose.

[0012] Preferably, a Velcro tab is fixedly installed on the top surface of the eyeglass cloth, and a Velcro liner is fixedly installed on the bottom surface of the movable plate, with the Velcro liner and the Velcro tab being adhered together.

[0013] Preferably, a fixed plate is fixedly installed on the other side of the movable plate, and a telescopic cylinder is fixedly installed on one side of the fixed plate. One end of the telescopic cylinder is fixedly connected to one side of the movable stage. Activating the telescopic cylinder drives the movable stage to move, which facilitates the industrial camera to detect scratches on the surface of the liquid crystal display.

[0014] Compared with the prior art, the beneficial effects of this utility model are: When inspecting scratches on the surface of an LCD panel, the LCD panel is placed on the top of the inspection table. Motor B is started to drive the second rotating shaft to rotate. When the second rotating shaft rotates, it drives one of the racks to move through the first movable rod, the movable seat, and the second movable rod. When one rack moves, it drives the gear to rotate. When the gear rotates, it drives the other rack to move. When the two racks move, the distance between the two clamping plates is adjusted by two sliders, so that the two clamping plates clamp the LCD panel.

[0015] The inspection equipment for this LCD panel, after clamping the LCD, starts motor C to drive the first rotating shaft to rotate. As the first rotating shaft rotates, it drives a lifting frame to rise and fall between two side plates via a second connecting rod, the first connecting rod, a connecting seat, and a fixed platform. When the lifting frame descends, the moving plate descends along with it. When the moving plate reaches a certain position, the spectacle cloth contacts the surface of the LCD. At this point, motor A starts motor A to drive a lead screw to rotate. The lead screw rotates, causing the moving plate to move within the lifting frame, facilitating the cleaning of stains on the LCD surface by the spectacle cloth. While the spectacle cloth is cleaning the LCD surface, a small amount of water can be sprayed onto the LCD surface, further facilitating cleaning. Simultaneously with the movement of the moving plate, an industrial camera can be activated to inspect the LCD surface. When the industrial camera is inspecting for scratches on the LCD, a telescopic cylinder can be activated to move the moving platform, allowing the industrial camera to inspect different locations on the LCD surface, thus achieving precision in scratch inspection. Attached Figure Description

[0016] Figure 1 This is one of the overall structural schematic diagrams of this utility model; Figure 2 This is the second schematic diagram of the overall structure of this utility model; Figure 3 This is the third schematic diagram of the overall structure of this utility model; Figure 4 This is a schematic diagram of the movable plate structure in this utility model; Figure 5 This is the fourth schematic diagram of the overall structure of this utility model.

[0017] In the diagram: 1. Testing table; 2. Side plate; 3. Lifting frame; 4. Moving plate; 5. Eyeglass cloth; 6. Moving stage; 7. Industrial camera; 8. Clamping plate; 9. Fixing box; 10. Nozzle; 11. Water tank; 12. Water supply hose; 13. Fixing plate; 14. Telescopic cylinder; 15. Connecting plate; 16. Top frame; 17. First rotating shaft; 18. Velcro; 19. Fixing table; 20. First connecting rod; 21. Second connecting rod; 22. Lead screw; 23. Motor A; 24. Support leg; 25. Rack; 26. Gear; 27. Base plate; 28. Second rotating shaft; 29. ​​First movable rod; 30. Movable seat; 31. Second movable rod; 32. Motor B; 33. Slide groove; 34. Slider; 35. Connecting seat; 36. Motor C; 37. Lighting lamp; 38. Velcro. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] Please see Figures 1-5 As shown, this utility model provides a technical solution: An inspection device for liquid crystal display panels, comprising: The testing table 1 has two side plates 2 fixedly installed on its top surface. The same lifting frame 3 is slidably installed between the two side plates 2. A movable plate 4 is slidably installed inside the lifting frame 3. A spectacle cloth 5 is provided on the bottom surface of the movable plate 4. A connecting plate 15 is fixedly installed on the top surface of both side plates 2. The same top frame 16 is fixedly installed on the top of the two connecting plates 15. Fixed box 9 is fixedly installed on one side of movable plate 4. Multiple nozzles 10 are fixedly installed on the bottom surface of fixed box 9. Movable stage 6 is slidably installed on the other side of movable plate 4. Industrial camera 7 is fixedly installed on the bottom surface of movable stage 6. A movable component is installed inside the lifting frame 3 and is used to move the movable plate 4. Two clamping plates 8 are slidably mounted on the top surface of the testing table 1; An adjustment component is located on the bottom surface of the testing table 1 and is used to move the two clamping plates 8. The lifting assembly is mounted on two connecting plates 15 and is used to drive the lifting frame 3 to rise and fall.

[0023] In this embodiment, the moving component includes two fixed platforms 19, which are fixedly installed on the inner side wall of the lifting frame 3. The same lead screw 22 is rotatably installed between the two lifting frames 3. The lead screw 22 is threadedly connected to the moving plate 4. A motor A23 is fixedly installed on one side of one of the fixed platforms 19. One end of the output shaft of the motor A23 is fixedly connected to one end of the lead screw 22. When the eyeglass cloth 5 comes into contact with the surface of the liquid crystal display, the motor A23 is started to drive the lead screw 22 to rotate. When the lead screw 22 rotates, it will drive the moving plate 4 to move within the lifting frame 3, which facilitates the eyeglass cloth 5 to clean the dirt on the surface of the liquid crystal display.

[0024] In this embodiment, the adjustment component includes two racks 25, which are slidably mounted on the bottom surface of the testing platform 1. A gear 26 is rotatably mounted on the bottom surface of the testing platform 1. The two racks 25 are located on both sides of the gear 26 and mesh with the gear 26. Two sliding grooves 33 are formed on the bottom surface of the testing platform 1, and sliders 34 are slidably mounted in each of the two sliding grooves 33. The top ends of the two sliders 34 are fixedly connected to the bottom surfaces of the two clamping plates 8, and the bottom ends of the two sliders 34 are fixedly connected to the bottom surfaces of the two racks 25. When one rack 25 moves, it drives the gear 26 to rotate. When the gear 26 rotates, it drives the other rack 25 to move. When the two racks 25 move, the distance between the two clamping plates 8 is adjusted by the two sliders 34, so that the two clamping plates 8 clamp the liquid crystal display.

[0025] In this embodiment, the adjustment assembly also includes two base plates 27, which are fixedly installed on the bottom surface of the testing platform 1. A second rotating shaft 28 is rotatably installed between the two base plates 27. A first movable rod 29 is fixedly installed on the second rotating shaft 28. A movable seat 30 is fixedly installed on one side of one of the racks 25. A second movable rod 31 is rotatably installed inside the movable seat 30. One side of the second movable rod 31 is rotatably connected to one side of the first movable rod 29. A motor B32 is fixedly installed on one side of one of the base plates 27. One end of the motor B32 is fixedly connected to one end of the second rotating shaft 28. When the motor B32 is started, it drives the second rotating shaft 28 to rotate. When the second rotating shaft 28 rotates, it drives one of the racks 25 to move through the first movable rod 29, the movable seat 30, and the second movable rod 31.

[0026] In this embodiment, the lifting assembly includes a first rotating shaft 17, which is rotatably installed in two connecting plates 15. Connecting seats 35 are fixedly installed on the top surfaces of two fixed platforms 19, and first connecting rods 20 are rotatably installed in both connecting seats 35. Two second connecting rods 21 are fixedly installed on the outer side wall of the first rotating shaft 17, and one side of each of the two second connecting rods 21 is rotatably connected to one side of each of the two first connecting rods 20. A motor C36 is fixedly installed on one side of one of the connecting plates 15, and one end of the output shaft of the motor C36 is fixedly connected to one end of the first rotating shaft 17. When the motor C36 is started, it drives the first rotating shaft 17 to rotate. When the first rotating shaft 17 rotates, it drives the lifting frame 3 to rise and fall between the two side plates 2 through the second connecting rods 21, the first connecting rods 20, the connecting seats 35, and the fixed platforms 19. When the lifting frame 3 descends, the moving plate 4 descends along with the lifting frame 3. When the moving plate 4 descends to a certain position, the eyeglass cloth 5 will contact the surface of the liquid crystal display.

[0027] In this embodiment, support legs 24 are fixedly installed at the four corners of the bottom surface of the testing platform 1, and multiple lighting lamps 37 are fixedly installed on the bottom surface of the top frame 16. When detecting scratches on the surface of the liquid crystal display, turning on the multiple lighting lamps 37 will illuminate the surface of the liquid crystal display, making the scratches on the surface of the liquid crystal display more obvious and making it easier to see the location of the scratches.

[0028] In this embodiment, a water storage tank 11 is fixedly installed on the top surface of the top frame 16. A water delivery hose 12 is provided on the water storage tank 11. The bottom end of the water delivery hose 12 is fixedly connected to the fixed box 9. Water in the water storage tank 11 is delivered to the fixed box 9 through the water delivery hose 12.

[0029] In this embodiment, a Velcro 38 is fixedly installed on the top surface of the eyeglass cloth 5, and a Velcro 18 is fixedly installed on the bottom surface of the movable plate 4. The Velcro 18 and the Velcro 38 are attached to each other.

[0030] In this embodiment, a fixed plate 13 is fixedly installed on the other side of the movable plate 4, and a telescopic cylinder 14 is fixedly installed on one side of the fixed plate 13. One end of the telescopic cylinder 14 is fixedly connected to one side of the movable stage 6. Activating the telescopic cylinder 14 drives the movable stage 6 to move, which facilitates the industrial camera 7 to detect scratches on the surface of the liquid crystal display.

[0031] When using the liquid crystal display panel inspection equipment of this embodiment, to detect scratches on the surface of the liquid crystal display, the liquid crystal display is placed on the top surface of the inspection table 1, and the motor B32 is started to drive the second rotating shaft 28 to rotate. When the second rotating shaft 28 rotates, it drives one of the racks 25 to move through the first movable rod 29, the movable seat 30, and the second movable rod 31. When one rack 25 moves, it drives the gear 26 to rotate. When the gear 26 rotates, it drives the other rack 25 to move. When the two racks 25 move, the distance between the two clamping plates 8 is adjusted by the two sliders 34, so that the two clamping plates 8 clamp the liquid crystal display.

[0032] After clamping the LCD monitor, the start motor C36 drives the first rotating shaft 17 to rotate. When the first rotating shaft 17 rotates, it drives the lifting frame 3 to rise and fall between the two side plates 2 via the second connecting rod 21, the first connecting rod 20, the connecting seat 35, and the fixed platform 19. As the lifting frame 3 descends, the moving plate 4 descends along with it. When the moving plate 4 descends to a certain position, the eyeglass cloth 5 will contact the surface of the LCD monitor. At this time, the start motor A23 drives the lead screw 22 to rotate. The rotation of the lead screw 22 drives the moving plate 4 to move within the lifting frame 3, facilitating the movement of the eyeglass cloth 5 over the LCD monitor surface. To clean surface stains, when the eyeglass cloth 5 is cleaning the stains on the LCD screen surface, the nozzle 10 can be activated to spray a small amount of water onto the LCD screen surface, thus facilitating the cleaning of stains on the LCD screen surface by the eyeglass cloth 5. At the same time as the moving plate 4 moves, the industrial camera 7 can also be activated to inspect the LCD screen surface. When the industrial camera 7 is inspecting scratches on the LCD screen, the telescopic cylinder 14 can be activated to drive the moving stage 6 to move, thereby realizing the movement of the industrial camera 7. This allows the industrial camera 7 to inspect different positions on the LCD screen surface, thus achieving accuracy in LCD screen scratch inspection.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An apparatus for inspecting a liquid crystal display panel, characterized by comprising: include: The testing table (1) has two side plates (2) fixedly installed on its top surface. The same lifting frame (3) is slidably installed between the two side plates (2). A movable plate (4) is slidably installed inside the lifting frame (3). A spectacle cloth (5) is provided on the bottom surface of the movable plate (4). A connecting plate (15) is fixedly installed on the top surface of both side plates (2). The same top frame (16) is fixedly installed on the top of the two connecting plates (15). A fixed box (9) is fixedly installed on one side of a movable plate (4). Multiple nozzles (10) are fixedly installed on the bottom surface of the fixed box (9). A movable stage (6) is slidably installed on the other side of the movable plate (4). An industrial camera (7) is fixedly installed on the bottom surface of the movable stage (6). A movable component is disposed within the lifting frame (3) and is used to move the movable plate (4); Two clamping plates (8) are slidably mounted on the top surface of the testing table (1); Adjustment component, which is set on the bottom surface of the testing table (1) and is used to move the two clamping plates (8); Lifting component, which is set on the two connecting plates (15) and is used to lift the lifting frame (3).

2. The apparatus for inspecting a liquid crystal display panel according to claim 1, wherein: The moving assembly includes two fixed platforms (19), which are fixedly installed on the inner side wall of the lifting frame (3). The same lead screw (22) is rotatably installed between the two lifting frames (3). The lead screw (22) is threadedly connected to the moving plate (4). A motor A (23) is fixedly installed on one side of one of the fixed platforms (19). One end of the output shaft of the motor A (23) is fixedly connected to one end of the lead screw (22).

3. The apparatus for inspecting a liquid crystal display panel according to claim 1, wherein: The adjustment assembly includes two racks (25), which are slidably mounted on the bottom surface of the testing platform (1). A gear (26) is rotatably mounted on the bottom surface of the testing platform (1). The two racks (25) are located on both sides of the gear (26) and mesh with the gear (26). The bottom surface of the testing platform (1) has two sliding grooves (33), and sliders (34) are slidably mounted in each of the two sliding grooves (33). The top ends of the two sliders (34) are fixedly connected to the bottom surfaces of the two clamping plates (8), and the bottom ends of the two sliders (34) are fixedly connected to the bottom surfaces of the two racks (25).

4. The inspection equipment for liquid crystal display panels according to claim 3, characterized in that: The adjustment assembly also includes two base plates (27), which are fixedly installed on the bottom surface of the testing table (1). A second rotating shaft (28) is rotatably installed between the two base plates (27). A first movable rod (29) is fixedly installed on the second rotating shaft (28). A movable seat (30) is fixedly installed on one side of one of the racks (25). A second movable rod (31) is rotatably installed inside the movable seat (30). One side of the second movable rod (31) is rotatably connected to one side of the first movable rod (29). A motor B (32) is fixedly installed on one side of one of the base plates (27). One end of the motor B (32) is fixedly connected to one end of the second rotating shaft (28).

5. The apparatus for inspecting a liquid crystal display panel according to claim 2, characterized by: The lifting assembly includes a first rotating shaft (17), which is rotatably installed in two connecting plates (15). A connecting seat (35) is fixedly installed on the top surface of each of the two fixed platforms (19). A first connecting rod (20) is rotatably installed in each of the two connecting seats (35). Two second connecting rods (21) are fixedly installed on the outer wall of the first rotating shaft (17). One side of each of the two second connecting rods (21) is rotatably connected to one side of each of the two first connecting rods (20). A motor C (36) is fixedly installed on one side of one of the connecting plates (15). One end of the output shaft of the motor C (36) is fixedly connected to one end of the first rotating shaft (17).

6. The inspection equipment for liquid crystal display panels according to claim 1, characterized in that: The bottom of the testing platform (1) is fixedly equipped with support legs (24) at the four corners, and the bottom of the top frame (16) is fixedly equipped with multiple lighting lamps (37).

7. The inspection device for liquid crystal display panels according to claim 1, characterized in that: A water storage tank (11) is fixedly installed on the top surface of the top frame (16). A water delivery hose (12) is provided on the water storage tank (11). The bottom end of the water delivery hose (12) is fixedly connected to the fixing box (9).

8. The apparatus for inspecting a liquid crystal display panel according to claim 1, characterized by: The top surface of the eyeglass cloth (5) is fixedly fitted with a Velcro tab (38), and the bottom surface of the movable plate (4) is fixedly fitted with a Velcro tab (18). The Velcro tab (18) and the Velcro tab (38) are attached to each other.

9. The inspection device for liquid crystal display panels according to claim 1, characterized in that: A fixed plate (13) is fixedly installed on the other side of the movable plate (4), and a telescopic cylinder (14) is fixedly installed on one side of the fixed plate (13). One end of the telescopic cylinder (14) is fixedly connected to one side of the movable platform (6).

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