Backlight module power-on detection device
By designing a power-on detection device for backlight modules, the CCD camera is used to detect the luminous state of the backlight modules, the problem of discomfort in the repeated detection process is solved, and an efficient and safe detection process is achieved.
Patent Information
- Application Number
- CN202421497667.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-06-27
AI Technical Summary
In the prior art, the luminous state detection of the backlight module is performed through the human eye, resulting in extreme discomfort in the repeated detection process of light and darkness.
A backlight module power-on detection device is designed, including a rack, conveyor belt, light shield, CCD camera and socket. The backlight module is transported to the light shield through the conveyor belt, and visual inspection is used by the CCD camera to avoid the direct participation of human eyes in the detection.
The detection is carried out through the CCD camera, which avoids discomfort caused by the human eye during repeated detection of light and darkness, improves detection efficiency and protects the eyes.
Smart Images
Figure CN223051361U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of backlight module detection, and specifically relates to a power-on detection device for a backlight module. Background Art
[0002] Backlight modules have been widely used in many aspects such as mobile phones, vehicle-mounted displays, game consoles, laptops, digital cameras, etc. When producing backlight products, strict backlight detection is required to eliminate defective backlight modules. Currently, the detection of the light-emitting state is carried out by the human eye, and in the process of repeated detection between bright and dark, the human eye will cause extreme discomfort. Summary of the Utility Model
[0003] To solve the defect that in the prior art, the light-emitting detection is carried out by the human eye, and in the process of repeated detection between bright and dark, the human eye will cause extreme discomfort, the utility model provides a power-on detection device for a backlight module.
[0004] To solve the above technical problems, the utility model provides the following technical solutions:
[0005] A power-on detection device for a backlight module of the utility model includes a frame. A conveyor belt for conveying the backlight module is provided on the frame. A light-shielding cover covering the middle part of the conveyor belt is provided on the frame. Feeding and discharging openings are provided on both sides of the light-shielding cover. A CCD camera facing downward and used for visually detecting the backlight module on the conveyor belt is provided on the top of the light-shielding cover. A socket for powering on the backlight module is installed on one side of the frame. A functional opening for manually taking the power line on the backlight module is provided on the light-shielding cover.
[0006] As a preferred technical solution of the utility model, a brush roller for cleaning the surface of the conveyor belt is further provided at the end of the conveyor belt.
[0007] As a preferred technical solution of the utility model, an engineering computer connected to the CCD camera is further provided on the frame.
[0008] As a preferred technical solution of the utility model, a filter is provided below the CCD camera in the light-shielding cover.
[0009] As a preferred technical solution of the utility model, a position sensor for detecting the position of the backlight module is provided in the light-shielding cover.
[0010] As a preferred technical solution of the utility model, photoelectric sensors are provided at both the discharge end and the feed end of the conveyor belt on the frame.
[0011] As a preferred technical solution of the present utility model, a controller is further provided on the frame, and the position sensor, the photoelectric sensor, and the motor on the conveyor belt are all connected to the controller.
[0012] The beneficial effects of the present utility model are as follows:
[0013] 1. For this backlight module power-on detection device, by placing the backlight module to be detected on the conveyor belt, the conveyor belt transports the backlight module to be detected into the light-shielding cover. Then, the power cord of the backlight module is manually inserted into the socket for power-on, and the CCD camera performs visual detection on the backlight module in the illuminated state. The CCD camera is used to detect the light emission of the backlight module, so there is no need for human eyes to observe and detect, thus avoiding irreversible damage to the eyes.
[0014] 2. This backlight module power-on detection device is provided with a brush roller at the end of the conveyor belt to clean the surface of the conveyor belt, thereby preventing foreign objects from falling on the surface of the conveyor belt and entering the interior of the backlight module, reducing the product quality of the backlight module. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, but do not constitute a limitation to the present utility model. In the drawings:
[0016] Figure 1 is a schematic structural diagram of a backlight module power-on detection device of the present utility model;
[0017] Figure 2 is a schematic internal structure diagram of the light-shielding cover of a backlight module power-on detection device of the present utility model;
[0018] Figure 3 is a schematic structural diagram of the brush roller of a backlight module power-on detection device of the present utility model.
[0019] In the figure: 1. Frame; 2. Conveyor belt; 3. Light-shielding cover; 4. Feeding and discharging port; 5. CCD camera; 6. Socket; 7. Function port; 8. Brush roller; 9. Engineering computer; 10. Filter; 11. Position sensor; 12. Photoelectric sensor; 13. Controller. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] The following is a description of the preferred embodiments of the present utility model with reference to the drawings. It should be understood that the preferred embodiments described herein are only for explaining and understanding the present utility model, and are not used to limit the present utility model.
[0021] Embodiment: As Figure 1 、 Figure 2 、Figure 3 As shown in the figure, a power-on detection device for a backlight module of the present utility model includes a frame 1. A conveyor belt 2 for conveying the backlight module is provided on the frame 1. A light-shielding cover 3 covering the middle part of the conveyor belt 2 is provided on the frame 1. Feeding and discharging ports 4 are provided on both sides of the light-shielding cover. A CCD camera 5 facing downward and used for visually detecting the backlight module on the conveyor belt 2 is provided on the top of the light-shielding cover 3. A socket 6 for powering on the backlight module is installed on one side of the frame 1. A functional port 7 for manually taking the power line on the backlight module is provided on the light-shielding cover 3. By placing the backlight module to be detected on the conveyor belt 2, the conveyor belt 2 transports the backlight module to be detected into the light-shielding cover 3. Then, the power cord of the backlight module is inserted into the socket 6 by manual operation to power on. The CCD camera 5 visually detects the backlight module in the illuminated state. The CCD camera 5 is used to detect the illumination of the backlight module. In this way, there is no need to observe and detect with the human eye, thus avoiding irreversible damage to the eyes.
[0022] Among them, a brush roller 8 for cleaning the surface of the conveyor belt 2 is further provided at the end of the conveyor belt 2 to clean the surface of the conveyor belt 2, thereby preventing foreign matters from falling on the surface of the conveyor belt 2 and entering the interior of the backlight module, and reducing the product quality of the backlight module.
[0023] Among them, an engineering computer 9 connected to the CCD camera 5 is further provided on the frame 1. This can display the results detected by the CCD and analyze them using the internal software of the engineering computer to obtain accurate calculation results.
[0024] Among them, a filter 10 is provided below the CCD camera 5 in the light-shielding cover 3 to prevent the strong light emitted by the backlight module from affecting the detection results of the CCD.
[0025] Among them, a position sensor 11 for detecting the position of the backlight module is provided in the light-shielding cover 3, which is convenient for detecting the position of the backlight module and facilitating the adjustment of the working state of the conveyor belt 2.
[0026] Among them, photoelectric sensors 12 are provided at both the discharging end and the feeding end of the conveyor belt 2 on the frame 1, which is convenient for loading and unloading the backlight module.
[0027] Among them, a controller 13 is further provided on the frame 1. The position sensor 11, the photoelectric sensors 12, and the motor on the conveyor belt are all connected to the controller 13.
[0028] During operation, for this backlight module power-on detection device, by placing the backlight module to be detected on the conveyor belt 2, the conveyor belt 2 transports the backlight module to be detected into the light-shielding cover 3. Then, manually insert the power cord of the backlight module into the socket 6 to power on, and the CCD camera 5 performs visual detection on the backlight module in the light-emitting state. The CCD camera 5 is used to detect the light emission of the backlight module, so there is no need for human eyes to observe the detection, thus avoiding irreversible damage to the eyes.
[0029] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A backlight module power-on detection device, characterized in that: The invention comprises a frame (1), wherein a conveyor belt (2) for conveying a backlight module is provided on the frame (1), and a light-shielding cover (3) covering the middle of the conveyor belt (2) is provided on the frame (1), and inlet and outlet ports (4) are provided on both sides of the light-shielding cover, and a CCD camera (5) facing downward and used for visually inspecting the backlight module on the conveyor belt (2) is provided on the top of the light-shielding cover (3), and a socket (6) for energizing the backlight module is installed on one side of the frame (1), and a functional port (7) for manually taking out the power line on the backlight module is provided on the light-shielding cover (3).
2. A backlight module power-on detection device according to claim 1, characterized in that: A brush roller (8) for cleaning the surface of the conveyor belt (2) is also provided at the end of the conveyor belt (2).
3. The backlight module power-on detection device according to claim 1, characterized in that: The frame (1) is also provided with an engineering computer (9) connected to the CCD camera (5).
4. The backlight module power-on detection device according to claim 2, characterized in that: The light-shielding cover (3) is provided with a filter (10) below the CCD camera (5).
5. The backlight module power-on detection device according to claim 1, characterized in that: A position sensor (11) for detecting the position of the backlight module is arranged inside the light-shielding cover (3).
6. The backlight module power-on detection device according to claim 5, characterized in that: The frame (1) is provided with photoelectric sensors (12) at both the discharge end and the feed end of the conveyor belt (2).
7. The backlight module power-on detection device according to claim 6, characterized in that: The frame (1) is also provided with a controller (13), and the position sensor (11), the photoelectric sensor (12) and the motor on the conveyor belt are all connected to the controller (13).