A horizontal warping detection device suitable for glass substrate
By designing a horizontal warp detection device for glass substrates, using a camera to acquire and compare grating plate images, the operation difficulty and accuracy of glass substrate warp detection in the prior art is solved, and high-precision warp detection is achieved.
Patent Information
- Application Number
- CN202420508937.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-15
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-03-15
AI Technical Summary
The warp detection method of existing glass substrates is difficult to operate manually, has high safety risks, and cannot meet the needs of accurately determining warp quality.
A horizontal warp detection device suitable for glass substrates is designed. By installing a display, a camera and a data processing system on the operating table, the camera collects the grating plate images of the spaced glass substrates and compares them with the standard images to determine the warp of the glass substrate.
The warpage detection of adjustable glass substrate is realized, which avoids the impact of its own gravity on the imaging results, improves the accuracy of detection and reduces detection errors.
Smart Images
Figure CN222704040U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of TFT-LCD liquid crystal glass substrate production, in particular to a horizontal warping detection device suitable for a glass substrate. Background Art
[0002] TFT-LCD liquid crystal glass substrate is the core component of liquid crystal display panel and is a key strategic material for the electronic information display industry. Due to the ultra-thin and large-size characteristics of liquid crystal glass, it needs to be placed completely and accurately on the corresponding testing equipment to measure its quality. At present, the warping detection in the glass substrate industry includes visual inspection of warping images. The warping image detection will place the sample on a glass support device and install a grid plate opposite the glass. Due to the principle of light reflection, the image of the grid plate will appear in the glass. The inspector uses a camera to take pictures of the glass and compares it with the limit sample to evaluate the deformation of the grid plate in the glass. During the processing, the glass plate is placed obliquely against the back plate. The lower end of the glass is squeezed by its own gravity and is easy to deform. The operation of the personnel on the plate is difficult and the safety risk is high. In addition, manual visual judgment cannot meet the needs of accurately determining the warping quality. Utility Model Content
[0003] In order to solve the technical problems existing in the background technology, the utility model provides a horizontal warping detection device suitable for a glass substrate.
[0004] The utility model proposes a horizontal warping detection device suitable for glass substrates, comprising: an operating table, a mounting slot is provided on the operating table, a display for displaying a grid plate image is installed on the operating table through the mounting slot, a glass substrate to be detected is placed on the display, the glass substrate is parallel to the grid plate image and the centers correspond to each other, a camera facing the glass substrate is arranged at the center of the grid plate image, the camera is communicatively connected with a data processing system, the display is communicatively connected with the data processing system, the center of the grid plate image is located on the center line of the display, the grid plate image is photographed by the camera through the glass substrate, and the grid plate image photographed through the glass substrate is compared with a standard image to determine the warping of the glass substrate.
[0005] Preferably, a guide rail is installed on the operating table and the guide rail and the operating table are arranged perpendicular to each other, a telescopic rod is slidably installed on the guide rail through a mounting seat, and one end of the telescopic rod away from the mounting seat is fixedly connected to a fixing seat.
[0006] Preferably, a camera for photographing the image of the grid plate is installed on the fixing seat.
[0007] Preferably, the data processing system is used to set the size and background color of the grid plate image displayed on the display, and is also used to set the camera usage parameters.
[0008] Preferably, the retractable rod is specifically an electric retractable rod, and the retractable rod is retractable and adjustable along the center line direction of the display.
[0009] Preferably, a control switch is installed on one side of the operating table, and the output end of the control switch is electrically connected to the guide rail, the telescopic rod and the input end of the display respectively.
[0010] In the utility model, the proposed horizontal warping detection device for glass substrates is placed on a display, and the size and background color of the grid plate image displayed on the display are set by a data processing system so that the center of the grid plate image corresponds to the center of the glass substrate, and the grid plate image of the spaced glass substrate is collected by a camera, and the collected grid plate image of the spaced glass substrate is transmitted to the data processing system for comparison with the standard image of the grid plate of the same size stored in the data processing system; when the collected grid plate image of the spaced glass substrate coincides with the standard image of the grid plate of the same size, it indicates that the glass substrate has no warping; when the collected grid plate image of the spaced glass substrate cannot completely coincide with the standard image of the grid plate of the same size, it indicates that the glass substrate has a warping problem. The warping detection of the adjustable glass substrate is realized, the influence of its own gravity on the final imaging result is avoided, the detection accuracy is improved, and the detection error is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 A three-dimensional structure diagram of a horizontal warpage detection device for a glass substrate proposed in the utility model Figure 1 ;
[0012] Figure 2 A three-dimensional structure diagram of a horizontal warpage detection device for a glass substrate proposed in the utility model Figure 2 ;
[0013] Figure 3 The utility model is a schematic diagram of a top view of a device for detecting horizontal warping of a glass substrate.
[0014] Legend:
[0015] 1. Operating table; 101. Mounting slot; 2. Display; 3. Guide rail; 301. Mounting seat; 4. Telescopic rod; 5. Fixed seat; 6. Control switch. DETAILED DESCRIPTION
[0016] Reference Figure 1-3The utility model proposes a horizontal warpage detection device for a glass substrate, comprising: an operating table 1 for carrying a glass substrate, a mounting groove 101 is provided on the operating table 1, a display 2 for displaying a grid plate image is installed on the operating table 1 through the mounting groove 101, a glass substrate to be detected is placed on the display 2, the glass substrate is parallel to the grid plate image and the centers correspond to each other, a camera facing the glass substrate is arranged at the center of the grid plate image, the camera is communicatively connected to a data processing system, the display 2 is communicatively connected to the data processing system, the center of the grid plate image is located on the center line of the display 2, the grid plate image is photographed by the camera through the glass substrate, and the grid plate image photographed through the glass substrate is compared with the standard image to determine the warpage of the glass substrate.
[0017] Specifically, Figure 1 and Figure 2 As shown, a guide rail 3 is installed on the operating platform 1 and the guide rail 3 and the operating platform 1 are arranged perpendicular to each other. A telescopic rod 4 is slidably installed on the guide rail 3 through a mounting seat 301, and one end of the telescopic rod 4 away from the mounting seat 301 is fixedly connected to a fixing seat 5.
[0018] In this embodiment, the height of the camera relative to the display 2 is adjusted by adjusting the guide rail 3; the telescopic rod 4 is used to facilitate adjustment of the shooting center of the camera, thereby facilitating the detection of glass substrates of different sizes.
[0019] Specifically, Figure 1 and Figure 2 As shown, a camera for photographing the grid plate image is installed on the fixing seat 5 .
[0020] Specifically, the data processing system is used to set the size and background color of the grid plate image displayed on the display 2, and is also used to set the camera usage parameters.
[0021] Specifically, Figure 1 and Figure 2 As shown, the telescopic rod 4 is specifically an electric telescopic rod. The telescopic rod 4 is telescopically adjusted along the center line direction of the display 2. A control switch 6 is installed on one side of the operating table 1. The output end of the control switch 6 is electrically connected to the guide rail 3, the telescopic rod 4 and the input end of the display 2 respectively.
[0022] In this embodiment, the use position of the camera can be adjusted by controlling the switch setting, thereby expanding the application range of the detection device and facilitating the detection device to detect glass substrates of various sizes.
[0023] In the specific working process of the horizontal warping detection device for glass substrates of the present embodiment, the glass substrate to be detected is placed on the display 2, and the size and background color of the grid plate image displayed on the display 2 are set by the data processing system so that the center of the grid plate image corresponds to the center of the glass substrate, and the grid plate image of the spaced glass substrate is collected by the camera, and the collected grid plate image of the spaced glass substrate is transmitted to the data processing system for comparison with the standard image of the grid plate of the same size stored in the data processing system; when the collected grid plate image of the spaced glass substrate coincides with the standard image of the grid plate of the same size, it indicates that the glass substrate has no warping; when the collected grid plate image of the spaced glass substrate cannot completely coincide with the standard image of the grid plate of the same size, it indicates that the glass substrate has a warping problem.
[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A horizontal warpage detection device for a glass substrate, characterized in that: include: An operating table (1) is provided with an installation slot (101), a display (2) for displaying a grid plate image is installed on the operating table (1) through the installation slot (101), a glass substrate to be detected is placed on the display (2), the glass substrate is parallel to the grid plate image and the centers thereof correspond to each other, a camera facing the glass substrate is arranged at the center of the grid plate image, the camera is communicatively connected to a data processing system, the display (2) is communicatively connected to the data processing system, the center of the grid plate image is located on the center line of the display (2), the grid plate image is photographed by the camera through the glass substrate, and the grid plate image photographed through the glass substrate is compared with a standard image to determine the warping of the glass substrate.
2. The horizontal warpage detection device for glass substrates according to claim 1, characterized in that: A guide rail (3) is installed on the operating table (1), and the guide rail (3) and the operating table (1) are arranged perpendicular to each other. A telescopic rod (4) is slidably installed on the guide rail (3) via a mounting seat (301), and one end of the telescopic rod (4) away from the mounting seat (301) is fixedly connected to a fixed seat (5).
3. The horizontal warpage detection device for glass substrates according to claim 2, characterized in that: A camera for photographing the image of the grid plate is installed on the fixing seat (5).
4. The horizontal warpage detection device for glass substrates according to claim 1, characterized in that: The data processing system is used to set the size and background color of the grid plate image displayed on the display (2), and is also used to set the camera usage parameters.
5. The horizontal warpage detection device for glass substrates according to claim 1, characterized in that: The telescopic rod (4) is specifically an electric telescopic rod, and the telescopic rod (4) is telescopically adjustable along the center line direction of the display (2).
6. The horizontal warpage detection device for glass substrates according to claim 5, characterized in that: A control switch (6) is installed on one side of the operating table (1), and the output end of the control switch (6) is electrically connected to the guide rail (3), the telescopic rod (4) and the input end of the display (2) respectively.