CN212111175U - Mura defect machine vision detection system of display panel - Google Patents
Mura defect machine vision detection system of display panel Download PDFInfo
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- CN212111175U CN212111175U CN202020894662.9U CN202020894662U CN212111175U CN 212111175 U CN212111175 U CN 212111175U CN 202020894662 U CN202020894662 U CN 202020894662U CN 212111175 U CN212111175 U CN 212111175U
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Abstract
The utility model discloses a display panel Mura defect machine vision detection system, including detection case, carrying mechanism, actuating mechanism and detection mechanism, detection mechanism includes CCD camera, image acquisition card, industrial computer, display screen and data storage card, the CCD camera is used for waiting to detect the LCD panel to realize image acquisition and send image data to getting into the detection zone image acquisition card, image acquisition card connects respectively industrial computer and display screen, the industrial computer carries out analysis and judgement to image data and with judged result data transmission to data storage card, the display screen is used for artifical the detection and judgement, actuating mechanism is used for the drive the CCD camera is treated and is detected the LCD panel and carry out image acquisition. The utility model provides a display panel Mura defect machine vision detecting system, degree of automation is high, and detection efficiency is high, and the precision that detects is high.
Description
Technical Field
The utility model relates to a visual inspection technical field, concretely relates to display panel Mura defect machine vision detecting system.
Background
In the flat panel display industry, Mura has been used as a generic term to represent a typical non-uniform display defect of a display, which is represented by an imperfect display visible on the surface of a pixel matrix when the display is in operation. The Mura defects can be classified into various categories according to the cause of generation and the manifestation.
The existing Mura defect detection technology has low intelligent degree, all the links still need to be manually completed, and the reliability of the detection precision still has larger promotion space.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a display panel Mura defect machine vision detecting system, degree of automation is high, and detection efficiency is high, and the precision that detects is high.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a Mura defect machine vision detection system of a display panel comprises a detection box, a carrying mechanism, a driving mechanism and a detection mechanism, wherein the detection box is used for forming a detection area with ambient light lower than 10lux, three faces of the detection box are respectively provided with a first electric door, a second electric door and a third electric door, the carrying mechanism comprises a feeding conveyer belt, a good product conveyer belt and a defective product conveyer belt which are respectively arranged outside the first electric door, the second electric door and the third electric door, and a detection table arranged in the detection box, the detection mechanism comprises a CCD camera, an image acquisition card, an industrial personal computer, a display screen and a data storage card, the CCD camera is used for realizing image acquisition on an LCD panel to be detected entering the detection area and sending image data to the image acquisition card, the image acquisition card is respectively connected with the industrial personal computer and the display screen, the industrial personal computer analyzes and judges the image data and sends the judged result data to the data storage card, the display screen is used for manual detection and judgment, and the driving mechanism is used for driving the CCD camera to acquire images of the LCD panel to be detected.
Preferably, the detection table is provided with a suction nozzle assembly for sucking up the LCD panel and a mechanical arm for driving the suction nozzle assembly to move, and the suction nozzle assembly and the mechanical arm are controlled by the industrial personal computer.
Preferably, the industrial personal computer is electrically connected with a PLC controller, and the PLC controller is used for controlling the opening and closing of the first electric door, the second electric door and the third electric door and the opening and closing of the feeding conveyer belt, the non-defective product conveyer belt and the defective product conveyer belt.
Preferably, the feeding conveyer belt is provided with an optical fiber sensor used for sensing the position of the LCD panel to be detected, and the optical fiber sensor sends a signal to the industrial personal computer.
Preferably, the driving mechanism is an XYZ-axis transfer unit, and the XYZ-axis transfer unit is controlled by the industrial controller.
Preferably, detection mechanism is still including setting up detect LED backlight group on the platform and set up the light filling banks of incasement wall, LED backlight group and light filling banks are adjustable light source.
Preferably, the detection mechanism comprises an LCD driver which is used for being connected with the LCD panel to be detected, and the state switching of the full brightness, the full darkness and the 50% gray scale of the LCD panel to be detected is realized under the control of the industrial personal computer.
Preferably, a buzzer is further arranged outside the detection box, and the buzzer is controlled by the industrial personal computer.
Preferably, the display screen adopts a split screen design, and one side of the display screen is provided with an operation key group for manually controlling the driving mechanism.
After the technical scheme is adopted, compared with the background art, the utility model, have following advantage:
1. the utility model relates to a display panel Mura defect machine vision detecting system, degree of automation is high, through robotic arm and delivery mechanism cooperation, get material and blowing automatically to the LCD panel, the testing process is controlled through the industrial computer, promotes detection efficiency comprehensively, saves the cost of labor.
2. The utility model relates to a display panel Mura defect machine vision detection system, the industrial computer gathers image data to the CCD camera and detects the judgement, when judging unqualifiedly, bee calling organ sounds, and the engineer carries out artifical reinspection to the LCD panel through display screen and operation button group control CCD camera, and the display screen adopts and divides the screen design, can carry out contrastive analysis to industrial control machine testing result and artifical the detection simultaneously, prevents to carry out the erroneous judgement, and it is high to detect the precision.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the detection box of the present invention;
fig. 3 is a block diagram of the control structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or position relationship shown in the drawings, and are only for convenience of description and simplification of the present invention, but do not indicate or imply that the device or element of the present invention must have a specific orientation, and thus, should not be construed as limiting the present invention.
Examples
Please refer to fig. 1, fig. 2 and fig. 3, the utility model discloses a display panel Mura defect machine vision detection system, including detection case 1, carrying mechanism 2, actuating mechanism 3 and detection mechanism 4, detection case 1 is used for forming the detection zone that ambient light is less than 10lux, and wherein trilateral first electrically operated gate 11, second electrically operated gate and third electrically operated gate of being equipped with respectively, first electrically operated gate 11, second electrically operated gate and third electrically operated gate homogeneous are sent, carrying mechanism is including establishing respectively at first electrically operated gate 11, the feeding conveyer belt 21 outside second electrically operated gate and the third electrically operated gate, non-defective products conveyer belt 22, substandard product conveyer belt 23 and establishing the test table 24 in the detection case.
The detection mechanism 4 comprises a CCD camera 41, an image acquisition card, an industrial personal computer, a display screen 42 and a data storage card, wherein the CCD41 camera is used for realizing image acquisition on an LCD panel to be detected entering a detection area and sending image data to the image acquisition card, the image acquisition card is respectively connected with the industrial personal computer and the display screen 42, the industrial personal computer analyzes and judges the image data and sends the judgment result data to the data storage card, the display screen is used for manual detection judgment, the driving mechanism 3 is an XYZ-axis moving unit 31, and the industrial personal computer controls the XYZ-axis moving unit 31 to drive the CCD camera 41 to move at each position to acquire images of the LCD panel to be detected. The detection box 1 is also provided with a buzzer 43 outside, the buzzer 43 is controlled by an industrial control machine, the display screen 42 adopts a split screen design, and one side of the display screen 42 is provided with an operation key group 44 for manually controlling the XYZ-axis moving unit 31.
During detection, the industrial personal computer detects and judges image data collected by the image acquisition card, when the judgment is unqualified, the industrial personal computer controls the buzzer 43 to sound, an engineer controls the CCD camera 41 to perform manual reinspection on the LCD panel through the display screen 42 and the operation key group 44, the display screen 42 adopts a split screen design, one screen is used for manual observation, and the other screen is connected with the machine detection result of the industrial personal computer in the data storage card for comparative analysis.
The industrial computer is also connected with a PLC controller, and the PLC controller is used for controlling the opening and closing of the first electric door 11, the second electric door and the third electric door and the opening and closing of the feeding conveyer belt 21, the non-defective product conveyer belt 22 and the defective product conveyer belt 23. The detection platform is provided with a suction nozzle assembly 45 for sucking up the LCD panel and a mechanical arm 46 for driving the suction nozzle assembly 45 to move, and the suction nozzle assembly 45 and the mechanical arm 46 are controlled by an industrial personal computer. And the feeding conveyer belt 21 is provided with an optical fiber sensor 47 for sensing the position of the LCD panel to be detected, and the optical fiber sensor sends a signal to the industrial personal computer.
When light sensor 47 senses the LCD panel that waits to detect on feeding conveyer belt 21, the first electrically operated gate of PLC controller control is opened, robotic arm 46 drive suction nozzle subassembly 45 will wait to detect that the LCD panel is inhaled from first electrically operated gate 11 and put into and detect the first electrically operated gate of closing after examining test table 24 and detect, the industrial computer judges whether the LCD panel is qualified, when qualified, the second electrically operated gate is opened, robotic arm 46 drive suction nozzle subassembly 45 will detect qualified LCD panel and put into the non-defective products conveyer belt, when unqualified, the second electrically operated gate is opened, robotic arm 46 drive suction nozzle subassembly 45 will detect unqualified LCD panel and put into the substandard product conveyer belt.
The detection mechanism 4 further comprises an LED backlight source group 48 arranged on the detection table and a light supplement lamp group arranged on the inner wall of the box, and the LED backlight source group 48 and the light supplement lamp group are adjustable light sources.
The detection mechanism 4 further comprises an LCD driver 49 which is used for being connected with the LCD panel to be detected and is controlled by an industrial personal computer to realize the state switching of full brightness, full darkness and 50% gray scale of the LCD panel to be detected.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides a display panel Mura defect machine vision detecting system, includes detection case, carrying mechanism, actuating mechanism and detection mechanism, its characterized in that: the detection box is used for forming a detection area with ambient light lower than 10lux, a first electric door, a second electric door and a third electric door are respectively arranged on three sides of the detection box, the carrying mechanism comprises a feeding conveyer belt, a good product conveyer belt, a defective product conveyer belt and a detection table which are respectively arranged outside the first electric door, the second electric door and the third electric door, the detection table is arranged in the detection box, the detection mechanism comprises a CCD camera, an image acquisition card, an industrial personal computer, a display screen and a data storage card, the CCD camera is used for realizing image acquisition on an LCD panel to be detected entering the detection area and sending image data to the image acquisition card, the image acquisition card is respectively connected with the industrial personal computer and the display screen, the industrial personal computer analyzes and judges the image data and sends the judged result data to the data storage card, and the display screen is used for manual detection and judgment, the driving mechanism is used for driving the CCD camera to acquire images of the LCD panel to be detected.
2. The system of claim 1, wherein the Mura defect machine vision inspection system comprises: the detection table is provided with a suction nozzle assembly for sucking up the LCD panel and a mechanical arm for driving the suction nozzle assembly to move, and the suction nozzle assembly and the mechanical arm are controlled by the industrial personal computer.
3. The system of claim 2, wherein the Mura defect machine vision inspection system comprises: the PLC is used for controlling the opening and closing of the first electric door, the second electric door and the third electric door, and the opening and closing of the feeding conveyer belt, the non-defective product conveyer belt and the defective product conveyer belt.
4. The system of claim 1, wherein the Mura defect machine vision inspection system comprises: the feeding conveyer belt is provided with an optical fiber sensor used for sensing the position of the LCD panel to be detected, and the optical fiber sensor sends a signal to the industrial personal computer.
5. The system of claim 1, wherein the Mura defect machine vision inspection system comprises: the driving mechanism is an XYZ axis moving unit which is controlled by the industrial personal computer.
6. The system of claim 1, wherein the Mura defect machine vision inspection system comprises: the detection mechanism is characterized by further comprising an LED backlight source group arranged on the detection platform and a light supplement lamp group arranged on the inner wall of the box, wherein the LED backlight source group and the light supplement lamp group are adjustable light sources.
7. The system of claim 1, wherein the Mura defect machine vision inspection system comprises: the detection mechanism comprises an LCD driver which is used for being connected with the LCD panel to be detected, and the state switching of the full bright, full dark and 50% gray scale of the LCD panel to be detected is realized under the control of the industrial personal computer.
8. The system of claim 1, wherein the Mura defect machine vision inspection system comprises: the detection box is also provided with a buzzer outside, and the buzzer is controlled by the industrial personal computer.
9. The system of claim 1, wherein the Mura defect machine vision inspection system comprises: the display screen adopts the split screen design, display screen one side is equipped with and is used for manual control actuating mechanism's operation button group.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020894662.9U CN212111175U (en) | 2020-05-25 | 2020-05-25 | Mura defect machine vision detection system of display panel |
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| CN202020894662.9U CN212111175U (en) | 2020-05-25 | 2020-05-25 | Mura defect machine vision detection system of display panel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114160430A (en) * | 2021-11-25 | 2022-03-11 | 上海诺狄生物科技有限公司 | Prefabricated culture medium flat plate visual inspection system and method |
| CN116400525A (en) * | 2023-05-26 | 2023-07-07 | 深圳市易天自动化设备股份有限公司 | Display panel paster detects lathe |
-
2020
- 2020-05-25 CN CN202020894662.9U patent/CN212111175U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114160430A (en) * | 2021-11-25 | 2022-03-11 | 上海诺狄生物科技有限公司 | Prefabricated culture medium flat plate visual inspection system and method |
| CN116400525A (en) * | 2023-05-26 | 2023-07-07 | 深圳市易天自动化设备股份有限公司 | Display panel paster detects lathe |
| CN116400525B (en) * | 2023-05-26 | 2023-09-08 | 深圳市易天自动化设备股份有限公司 | Display panel paster detects lathe |
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