Display screen defect optical detection device
By designing the optical detection device for display screen defects, the image acquisition and comparison unit are used to automatically detect the defects of the display screen, and the problems of workers' eye fatigue and low accuracy during detection in the prior art are solved, and an efficient and accurate detection process is achieved. .
Patent Information
- Application Number
- CN202420809320.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-18
AI Technical Summary
In the prior art, workers need to manually light up the display screen during detection and observe through the eyes, resulting in eye fatigue and detection accuracy, which affects detection speed and accuracy.
Design an optical detection device for defects on display screen, including an image acquisition mechanism, a comparison unit and a defect detection unit, capture the image of the display screen through a camera, perform automated color switching and defect analysis, and use image analyzer and defect comparison device to determine The defect is outputted through the display, the traceability code is recorded, and the image acquisition mechanism is fed back to the next step of detection.
It improves the accuracy and speed of display screen detection, reduces the trouble of workers' observation, reduces eye damage, realizes automatic detection, and enhances detection efficiency.
Smart Images
Figure CN222259185U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of display screen optical detection, in particular to a display screen defect optical detection device. Background Art
[0002] The display screen needs to be lit up after production. By lighting up the display screen, it can be determined whether the display screen is normal when displaying different colors. Currently, when inspecting the display screen, workers are required to light up the display screen and then carefully check the display screen with their eyes to determine whether the display screen can be lit normally and whether the display is normal after lighting. However, when workers observe with their eyes, it is easy to cause eye fatigue, and it will also affect the accuracy of workers' detection of the display screen. In order to improve the accuracy and speed of display screen detection, this case proposes an optical detection device for display screen defects. Summary of the invention
[0003] The purpose of the utility model is to provide a display screen defect optical detection device to solve the problems raised in the above background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides an optical detection device for display screen defects, comprising an image acquisition mechanism, a comparison unit and a defect detection unit, wherein the image acquisition mechanism, the comparison unit and the defect detection unit are electrically connected in sequence, the image acquisition mechanism powers on the display screen, lights up the display screen, switches the color of the display screen after lighting up the display screen, and captures an image when the display screen displays the switched color, and the captured image is transmitted to the comparison unit, the comparison unit analyzes the image, compares the defects on the display screen, and after the comparison is completed, transmits the defect information to the defect detection unit, the defect detection unit determines the defect information compared by the comparison unit, and outputs the comparison result after determination, and at the same time, during the process of outputting the comparison result, feeds back to the image acquisition mechanism, so that the image acquisition mechanism switches the color of the screen display.
[0005] As a further improvement of the present technical solution, the image acquisition mechanism includes a power connection clamp, a screen display converter and a camera. The power connection clamp is electrically connected to the screen display converter and the camera respectively, and the screen display converter and the camera are electrically connected at the same time.
[0006] As a further improvement of the technical solution, the power connection clamp is electrically connected to the connection terminal of the display screen, the screen display converter controls the display screen to switch the detection color, and the camera captures the image of the display screen in actual color.
[0007] As a further improvement of the present technical solution, the comparison unit includes an image analyzer and a defect comparator, the image analyzer and the defect comparator are electrically connected to each other, the image analyzer and the camera are electrically connected, the image taken by the camera is transmitted to the image analyzer, the image analyzer recognizes the image, the defect comparator receives the content recognized by the image analyzer, and performs a determined comparison based on the recognized content.
[0008] As a further improvement of the present technical solution, the defect detection unit includes a defect determiner, a comparison output device and a display, the defect determiner, the comparison output device and the display are electrically connected in sequence, the defect determiner and the defect comparator are electrically connected, the defect determiner receives the comparison result of the defect comparator and makes a determination based on the comparison result, the comparison output device transmits the comparison result determined by the defect determiner to the display, and the display displays it.
[0009] As a further improvement of the present technical solution, the defect detection unit also includes an information editor, which is electrically connected to the comparison output device and the display. The information editor receives the information output by the comparison output device and edits the output information into the traceability code of the display screen. The edited information is displayed through the display.
[0010] As a further improvement of the technical solution, the comparison output device and the screen display converter are electrically connected, and when the comparison output device transmits the comparison result determined by the defect determiner to the display, it feeds back to the screen display converter, so that the screen display converter switches to the next test color.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] In the optical detection device for display screen defects, the image displayed on the display screen is captured by a set camera, and then the comparison unit compares the pictures based on the captured images to find the defects corresponding to the display screen. The defect detection unit determines the content and then records the traceability code. At the same time, after the comparison output device outputs the defect, it feeds back to the screen display converter, so that the screen display converter performs color conversion and the display screen performs the next item detection. This avoids the trouble of workers' observation, speeds up the speed of display screen detection, and also improves the accuracy of display screen detection. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 It is a schematic diagram of the structure of the image acquisition mechanism of the utility model;
[0015] Figure 3It is a schematic diagram of the comparison unit structure of the utility model;
[0016] Figure 4 It is a schematic diagram of the defect detection unit structure of the utility model.
[0017] The meaning of each number in the figure is:
[0018] 1. Image acquisition mechanism; 11. Power connection clamp; 12. Screen display converter; 13. Camera;
[0019] 2. Comparison unit; 21. Image analyzer; 22. Defect comparator;
[0020] 3. Defect detection unit; 31. Defect determiner; 32. Comparison output device; 33. Information editor; 34. Display. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention. Example
[0023] During the inspection of the display screen, the worker will light up the display screen and then switch different colors to make the display screen display different colors. The display screen will have different problems by displaying different colors, such as dark spots and frequent bright lines. When the worker is watching with his eyes, the light from the display screen will damage the eyes and cause eye fatigue. Long-term observation will also reduce the accuracy of the worker's inspection, thereby reducing the accuracy of the display screen inspection. In order to speed up the inspection of the display screen and improve the accuracy of the inspection of the display screen, please refer to Figure 1-Figure 4As shown, the present embodiment provides an optical detection device for display screen defects, including an image acquisition mechanism 1, a comparison unit 2 and a defect detection unit 3. The image acquisition mechanism 1, the comparison unit 2 and the defect detection unit 3 are electrically connected in sequence. The image acquisition mechanism 1 powers on the display screen, lights up the display screen, and makes the display screen display the color for screen detection, such as red, blue, green, etc., and switches the color of the display screen after lighting up the display screen, and captures an image when the display screen displays the switched color. The captured image is transmitted to the comparison unit 2, and the comparison unit 2 analyzes the image to compare the defects on the display screen, and after the comparison is completed, the defect information is transmitted to the defect detection unit 3, and the defect detection unit 3 determines the defect information compared by the comparison unit 2, and outputs the comparison result after determination, and at the same time, during the process of outputting the comparison result, it feeds back to the image acquisition mechanism 1, so that the image acquisition mechanism 1 switches the color of the screen display.
[0024] The image acquisition mechanism 1 captures the content displayed on the display screen, and then the comparison unit 2 analyzes and compares the defects of the content displayed on the display screen to obtain the defect problem of the display screen, and then the defect detection unit 3 determines and marks it, and records the problem of the display screen. At the same time, the defect detection unit 3 feeds back to the image acquisition mechanism 1 after determining the defect, so that the image acquisition mechanism 1 switches the color, and obtains the display status of the display screen in different colors through different color switching, and obtains all the information displayed on the display screen, so as to achieve comprehensive detection of the display screen, improve the accuracy of display screen detection, and also save the trouble of workers observing the display screen, reduce the damage to workers' eyes during display screen detection, and speed up the detection of the display screen.
[0025] In order to achieve the above-described effect, the above-mentioned structure is refined. The image acquisition mechanism 1 includes a power clamp 11, a screen display converter 12 and a camera 13. The power clamp 11 is electrically connected to the screen display converter 12 and the camera 13 respectively. At the same time, the screen display converter 12 and the camera 13 are electrically connected. The power clamp 11 electrically connects the connection terminals of the display screen. Workers can manually connect in this process. The workers take the display screen on the assembly line and then electrically connect the wire and the power clamp 11 to power on the display screen. After the display screen is powered on, the content displayed on the display screen will enter the detection page. The screen display converter 12 controls the display screen to switch the detection color so that the display screen displays different colors. By switching different colors, it is determined whether there is a problem with the display of the display screen. The camera 13 captures the image of the display screen in real color and records the situation where the display screen displays different colors.
[0026] The comparison unit 2 includes an image analyzer 21 and a defect comparator 22. The image analyzer 21 and the defect comparator 22 are electrically connected to each other, and the image analyzer 21 and the camera 13 are electrically connected. The image captured by the camera 13 is transmitted to the image analyzer 21, and the image analyzer 21 recognizes the image and obtains the image information displayed on the display screen. The defect comparator 22 receives the content recognized by the image analyzer 21 and performs a determined comparison based on the recognized content. For example, if a point with a color different from that controlled by the screen display converter 12 is displayed on the display screen, the defect comparator 22 compares this point to determine whether this point is a bright point, a dark point, or a bad point. By comparing the defect of this point, the defect information of this point is obtained, so that the defect detection unit 3 can determine the defect based on the comparison result of the comparison unit 2.
[0027] The defect detection unit 3 includes a defect determiner 31, a comparison output device 32 and a display 34. The defect determiner 31, the comparison output device 32 and the display 34 are electrically connected in sequence. The defect determiner 31 and the defect comparator 22 are electrically connected. The defect determiner 31 receives the comparison result of the defect comparator 22, and determines according to the comparison result to determine the defect problem of the illuminated display screen. The comparison output device 32 transmits the comparison result determined by the defect determiner 31 to the display 34, which is displayed on the display 34. The worker classifies the display screen by observing the information content displayed on the display 34, so that subsequent workers can uniformly remelt and repair the display screens with different problems.
[0028] At the same time, in order to facilitate subsequent workers to find defects in the display screen, the defect detection unit 3 also includes an information editor 33, and the information editor 33 is electrically connected to the comparison output device 32 and the display 34. The information editor 33 receives the information output by the comparison output device 32, and edits the output information into the traceability code of the display screen. The workers can directly query the information of the display screen through the information of the traceability code, which is convenient for the workers to classify the display screen later. The edited information is displayed through the display 34.
[0029] The comparison output device 32 is electrically connected to the screen display converter 12. When the comparison output device 32 transmits the comparison result determined by the defect determiner 31 to the display 34, it feeds back to the screen display converter 12, so that the screen display converter 12 switches to the next test color. After switching to the next test color, the screen display converter 12 transmits information to the camera 13, so that the camera 13 recaptures the color displayed on the display screen, and then the comparison unit 2 and the defect detection unit 3 determine the defects of the display screen according to the image captured by the camera 13, and so on and so forth until the display screen displays all the colors that need to be displayed.
[0030] The image displayed on the display screen is captured by the provided camera 13, and then the comparison unit 2 compares the pictures according to the captured images to find the defects corresponding to the display screen, and the defect detection unit 3 determines the determined contents, and then records the traceability code. At the same time, after the comparison output device 32 outputs the defects, it feeds back to the screen display converter 12, so that the screen display converter 12 performs color conversion and the display screen performs the next item detection, thus avoiding the trouble of workers' observation, speeding up the detection of the display screen, and also improving the accuracy of the detection of the display screen.
[0031] The above shows and describes the basic principle, main features and 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 preferred examples of the utility model and are not used to limit 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 of the utility model is defined by the attached claims and their equivalents.
Claims
1. A display screen defect optical detection device, comprising an image acquisition mechanism (1), a comparison unit (2) and a defect detection unit (3), wherein the image acquisition mechanism (1), the comparison unit (2) and the defect detection unit (3) are electrically connected in sequence, and characterized in that: The image acquisition mechanism (1) powers on the display screen, lights up the display screen, switches the color of the display screen after lighting up the display screen, and captures an image when the display screen displays the switched color. The captured image is transmitted to the comparison unit (2). The comparison unit (2) analyzes the image, compares the defects on the display screen, and after the comparison is completed, transmits the defect information to the defect detection unit (3). The defect detection unit (3) determines the defect information compared by the comparison unit (2), and outputs the comparison result after determination. At the same time, during the process of outputting the comparison result, it feeds back to the image acquisition mechanism (1), so that the image acquisition mechanism (1) switches the color of the screen display.
2. The display screen defect optical detection device according to claim 1, characterized in that: The image acquisition mechanism (1) comprises an electrical connection clamp (11), a screen display converter (12) and a camera (13); the electrical connection clamp (11) is electrically connected to the screen display converter (12) and the camera (13), respectively, and the screen display converter (12) and the camera (13) are electrically connected to each other.
3. The display screen defect optical detection device according to claim 2, characterized in that: The power connection clip (11) is electrically connected to the connection terminal of the display screen, the screen display converter (12) controls the display screen to switch the detection color, and the camera (13) captures the image of the display screen in actual color.
4. The display screen defect optical detection device according to claim 2, characterized in that: The comparison unit (2) comprises an image analyzer (21) and a defect comparer (22), the image analyzer (21) and the defect comparer (22) being electrically connected to each other, and the image analyzer (21) and the camera (13) being electrically connected to each other, an image captured by the camera (13) being transmitted to the image analyzer (21), the image analyzer (21) identifying the image, the defect comparer (22) receiving the content identified by the image analyzer (21), and performing a determined comparison based on the identified content.
5. The display screen defect optical detection device according to claim 4, characterized in that: The defect detection unit (3) comprises a defect determiner (31), a comparison output device (32) and a display (34); the defect determiner (31), the comparison output device (32) and the display (34) are electrically connected in sequence; the defect determiner (31) and the defect comparator (22) are electrically connected; the defect determiner (31) receives the comparison result of the defect comparator (22) and makes a determination based on the comparison result; the comparison output device (32) transmits the comparison result determined by the defect determiner (31) to the display (34), and the display (34) displays it.
6. The display screen defect optical detection device according to claim 5, characterized in that: The defect detection unit (3) further comprises an information editor (33), wherein the information editor (33) is electrically connected to the comparison output device (32) and the display (34), wherein the information editor (33) receives information output by the comparison output device (32), and edits the output information into a traceability code on the display screen, and the edited information is displayed via the display (34).
7. The display screen defect optical detection device according to claim 5, characterized in that: The comparison output device (32) is electrically connected to the screen display converter (12), and when the comparison output device (32) transmits the comparison result determined by the defect determiner (31) to the display (34), the comparison output device (32) feeds back to the screen display converter (12), so that the screen display converter (12) switches to the next test color.