Backlight panel detection mechanism
By designing a backlight panel inspection mechanism and adopting automated inspection using fixtures, moving components, and inspection components, the problem of accidental touches during manual operation was solved, achieving efficient and accurate backlight panel inspection and improving the yield rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN LANJI IND TECH CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-28
AI Technical Summary
In the current backlight panel testing process, manual operation is prone to accidental touches or operational errors, which affects the yield rate.
Design a backlight panel inspection mechanism, including a fixture, a moving component, and an inspection component. The backlight panel is inspected by automatically conveying it, the voltage is adjusted by a voltage regulating lighting component, and automatic inspection is carried out in combination with a lifting component, a pressing cover plate, and a camera. A dust removal air knife is equipped to remove dust, thereby achieving automated inspection.
This improves testing efficiency and accuracy, reduces manual intervention, ensures that backlight panels are tested in the correct process, and increases yield.
Smart Images

Figure CN224568471U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing equipment, and in particular to a backlight panel testing mechanism. Background Technology
[0002] Currently, most backlight panel testing operations are performed manually. However, since there are many testing steps for backlight panels, if each step requires manual intervention, it is easy to accidentally touch the backlight panel during the operation, or to cause the backlight panel to fail to be tested in the correct step due to operational errors, thus affecting the yield rate of backlight panels. Utility Model Content
[0003] The purpose of this invention is to address the technical problems existing in the background art by proposing a backlight panel detection mechanism.
[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:
[0005] A backlight panel testing mechanism includes a fixture, a moving component, and at least two testing components. The fixture is used to place the backlight panel and is equipped with a voltage-regulating lighting component. The voltage-regulating lighting component is connected to the backlight panel to adjust the backlight panel voltage and illuminate the backlight panel. The moving component is used to be fixedly connected to the fixture and to move the fixture. Each testing component is located at the moving path of the moving component and is used for pressing and mounting the backlight panel.
[0006] Preferably, the backlight panel detection mechanism further includes at least two supports, each support being respectively disposed above each detection component. The detection component includes a lifting component, a pressing cover plate, and a camera. The pressing cover plate is connected to the lifting component. Under the drive of the lifting component, the pressing cover plate moves closer to or away from the backlight panel. The camera is fixedly connected to the support and is used to detect the backlight panel through the pressing cover plate.
[0007] Preferably, the detection assembly further includes a dust removal air knife, which is mounted on the press-fit cover plate for blowing away dust particles on the press-fit cover plate.
[0008] Preferably, the lifting component includes multiple guide columns, a mounting plate, and a telescopic cylinder. The multiple guide columns are respectively disposed at the moving path of the moving component. The pressing cover plate is slidably connected to the multiple guide columns. The mounting plate is installed at the end of the multiple guide columns and is provided with a detection window. The telescopic cylinder is installed on the mounting plate and connected to the pressing cover plate to drive the pressing cover plate to move along the length direction of the guide columns.
[0009] Preferably, the backlight detection mechanism further includes a light-emitting element, which is mounted on a mounting plate and used to provide a light source.
[0010] Preferably, the detection assembly further includes an adjustment element, through which the camera is mounted at any position on the bracket.
[0011] Preferably, the moving component includes a linear motor.
[0012] Preferably, the backlight panel detection mechanism further includes a fixed platform, and multiple brackets, a moving component, and at least two detection components are mounted on the fixed platform. Two control buttons are provided on the fixed platform, and the two control buttons are electrically connected to the moving component and the at least two detection components, respectively.
[0013] Compared with the prior art, the utility model has the following beneficial technical effects: it includes a fixture, a moving component, and at least two detection components. The fixture is used to place the backlight panel, and a voltage regulating and lighting component is provided on the fixture. The voltage regulating and lighting component is connected to the backlight panel to adjust the voltage of the backlight panel and light it up. The moving component is used to fix and move the fixture. Each detection component is set at the moving path of the moving component and is used for pressing and mounting the backlight panel, realizing automated delivery of the backlight panel to the corresponding detection process, reducing manual intervention, and improving detection efficiency and accuracy. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;
[0015] Figure 2 This is a schematic diagram of the structure of two detection components in an embodiment of this utility model;
[0016] Figure 3 This is a schematic diagram of the structure of the fixed platform, the moving component, and the fixture in the embodiment of this utility model;
[0017] Figure 4 This is an exploded view of the fixture in an embodiment of this utility model.
[0018] Icon labels:
[0019] 100 jigs, 101 voltage regulating lighting components;
[0020] 200 mobile components;
[0021] 300 Detection component, 301 Lifting component, 3011 Guide column, 3012 Mounting plate, 3013 Telescopic cylinder, 302 Press-fit cover plate, 303 Camera, 304 Dust removal air knife, 305 Adjusting component;
[0022] 400 brackets;
[0023] 500 light-emitting components;
[0024] 600 fixed platform, 601 control button. Detailed Implementation
[0025] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or assembly 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. Furthermore, the terms "first," "second," etc., 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, features defined with "first," "second," etc., may explicitly or implicitly include one or more features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a link, or a specific connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the connection within two groups. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0029] like Figures 1-4 As shown, this utility model proposes a backlight panel testing mechanism, including a fixture 100, a moving component 200, and at least two testing components 300. The fixture 100 is used to place the backlight panel, and a voltage regulating lighting component 101 is provided on the fixture 100. The voltage regulating lighting component is connected to the backlight panel to adjust the backlight panel voltage and light up the backlight panel. The moving component 200 is used to be fixedly connected to the fixture 100 and to move the fixture 100. Each testing component 300 is arranged at the moving path of the moving component 200 and is used for pressing and mounting the backlight panel.
[0030] In this embodiment, the specific implementation is as follows: The operator places the backlight panel onto the fixture 100. The moving component 200 drives the fixture 100 to move, passing the first detection component 300 for inspection. If a defect is detected in the backlight panel, the moving component 200 moves the backlight panel to the unloading position. It should be noted that the unloading position is located at the end of the moving path of the moving component 200. Although it passes other detection components 300, it does not stop; it moves directly to the unloading position, conveying the defective backlight panel there. If no defect is detected in the backlight panel, then... The backlight panel is moved to the next inspection component 300 for inspection by the moving component 200. It should be noted that the inspection content of each inspection component 300 is different. In this embodiment, two inspection components 300 are used. The first inspection component 300 is used to detect whether there are black spots or fuzz on the backlight panel. The second inspection component 300 is used to detect whether there are bubbles, scratches or whether the film is applied crookedly on the backlight panel. If the backlight panel has problems in the inspection of these inspection components 300, the backlight panel is directly moved to the unloading position. If there are no problems in the inspection, the backlight panel can be taken out and placed in the good product position.
[0031] In one embodiment of this application, the backlight panel detection mechanism further includes at least two supports 400, each support 400 being respectively disposed above each detection component 300. The detection component 300 includes a lifting member 301, a pressing cover plate 302, and a camera 303. The pressing cover plate 302 is connected to the lifting member 301. Under the drive of the lifting member 301, the pressing cover plate 302 moves closer to or away from the backlight panel. The camera 303 is fixedly connected to the support 400 and is used to detect the backlight panel through the pressing cover plate 302.
[0032] It should be noted that the pressing cover plate 302 is specifically a frame plate with a hollow center. A light-transmitting film plate is provided in the center for pressing. During pressing, the entire frame plate is lowered by the lifting component 301, so that the film plate is applied to and covers the backlight plate, flattening the backlight plate and preventing the film on the backlight plate from being pried open. The backlight plate is then photographed, identified, and detected by the camera.
[0033] In one embodiment of this application, the detection component 300 further includes a dust removal air knife 304, which is mounted on the press-fit cover plate 302 for blowing away dust particles on the press-fit cover plate 302.
[0034] It should be noted that the dust removal air knife 304 is mounted on the frame plate and faces the center of the frame plate. It is used to blow air onto the membrane plate to remove any dust particles that may be present on the membrane plate and prevent the camera from misidentifying it.
[0035] In one embodiment of this application, the lifting component 301 includes a plurality of guide posts 3011, a mounting plate 3012, and a telescopic cylinder 3013. The plurality of guide posts 3011 are respectively disposed at the moving path of the moving component 200. The pressing cover plate 302 is slidably connected to the plurality of guide posts 3011. The mounting plate 3012 is mounted on the ends of the plurality of guide posts 3011. The mounting plate 3012 is provided with a detection window 3014. The telescopic cylinder 3013 is mounted on the mounting plate 3012 and connected to the pressing cover plate 302 to drive the pressing cover plate 302 to move along the length direction of the guide posts 3011.
[0036] In one embodiment of this application, the backlight detection mechanism further includes a light-emitting element 500, which is mounted on the mounting plate 3012 and used to provide a light source.
[0037] In one embodiment of this application, the detection component 300 further includes an adjustment member 305, through which the camera 303 is mounted at any position on the bracket 400.
[0038] It should be noted that the bracket 400 is made of aluminum profile and assembled to form a frame. The adjusting component 305 is specifically an L-shaped fixing block. The adjusting component 305 is fixed at any position on the bracket 400 by screws. The camera 303 is directly fixed on the adjusting component 305, and the fixed position of the adjusting component 305 on the bracket 400 is adjusted according to the needs of the detection position.
[0039] In one embodiment of this application, the moving component 200 includes a linear motor.
[0040] In one embodiment of this application, the backlight panel detection mechanism further includes a fixed platform 600, on which multiple brackets 400, a moving component 200 and at least two detection components 300 are mounted. The fixed platform 600 is provided with two control buttons 601, which are electrically connected to the moving component 200 and the at least two detection components 300, respectively.
[0041] It should be noted that both control buttons 601 are used to control the start and stop of the moving component 200 and the detection component 300. It should be noted that both control buttons 601 need to be pressed at the same time to activate them, in order to avoid the operator operating with one hand while the other hand is in the working area of the backlight detection mechanism, which could lead to the risk of hand injury.
[0042] It should be noted that the above descriptions are one or more embodiments provided in conjunction with specific content, and do not imply that the specific implementation of this utility model is limited to these descriptions. Any methods or structures that are similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered within the scope of protection of this utility model.
Claims
1. A backlight panel detection mechanism, characterized in that, include: A fixture (100) is used to place the backlight panel. A voltage-regulating lighting component (101) is provided on the fixture (100). The voltage-regulating lighting component is connected to the backlight panel to adjust the voltage of the backlight panel and to light up the backlight panel. A movable component (200) is used to be fixedly connected to the fixture (100) and to move the fixture (100); At least two detection components (300) are disposed at the movement path of the moving component (200) and are used for press-fitting the backlight panel.
2. The backlight panel detection mechanism according to claim 1, characterized in that, It also includes at least two supports (400), each of which is respectively disposed above each of the detection components (300), and the detection component (300) includes: Lifting component (301); A press-fit cover plate (302) is connected to the lifting member (301), wherein, driven by the lifting member (301), the press-fit cover plate (302) moves closer to the backlight panel to press it, or moves away from the backlight panel. A camera (303) is fixedly connected to the bracket (400) and is used to detect the backlight panel through the press-fit cover plate (302).
3. The backlight panel detection mechanism according to claim 2, characterized in that, The detection component (300) also includes a dust removal air knife (304), which is mounted on the press-fit cover plate (302) for blowing away dust particles on the press-fit cover plate (302).
4. The backlight panel detection mechanism according to claim 3, characterized in that, The lifting component (301) includes: Multiple guide posts (3011) are respectively disposed at the moving path of the moving component (200), wherein the press-fit cover plate (302) is slidably connected to the multiple guide posts (3011); Mounting plate (3012) is mounted to the ends of the plurality of guide posts (3011), and the mounting plate (3012) is provided with a detection window (3014); A telescopic cylinder (3013) is mounted on the mounting plate (3012) and connected to the press-fit cover plate (302) to drive the press-fit cover plate (302) to move along the length direction of the guide post (3011).
5. A backlight panel detection mechanism according to claim 4, characterized in that, It also includes a light-emitting element (500), which is mounted on the mounting plate (3012) and is used to provide a light source.
6. The backlight panel detection mechanism according to claim 2, characterized in that, The detection component (300) further includes an adjustment member (305), through which the camera (303) is mounted at any position on the bracket (400).
7. A backlight panel detection mechanism according to claim 1, characterized in that, The moving component (200) includes a linear motor.
8. A backlight panel detection mechanism according to claim 2, characterized in that, It also includes a fixed platform (600), on which a plurality of the brackets (400), the moving component (200) and at least two of the detection components (300) are mounted. The fixed platform (600) is provided with two control buttons (601), which are electrically connected to the moving component (200) and the at least two of the detection components (300), respectively.