Calibration method, system, equipment and medium for panel detection equipment

Abstract

The present application relates to a correction method, system, device and medium for a panel detection device, the correction method for the panel detection device comprising: detecting the illumination of the light source of the panel detection device; if the illumination of the light source does not meet the preset illumination requirement, obtaining the original image grayscale and calibration information corresponding to the panel detection device; determining the camera gain compensation information or the light source compensation information of the panel detection device according to the original image grayscale and the calibration information; performing correction according to the camera gain compensation information or the light source compensation information to obtain the correction result of the panel detection device. The present application realizes an automatic compensation function, which can effectively guarantee product quality monitoring and solve the problem of reduced detection capability of the panel detection device due to weak light source.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of display technology, and in particular to a calibration method, system, device and medium for a panel detection device. Background Art

[0002] At present, liquid crystal displays have become the leading products in the current display market. The main structure of a liquid crystal display is a liquid crystal panel, which includes an array substrate, a color film substrate, a liquid crystal layer, and the like.

[0003] In the production process of liquid crystal panels, the automatic appearance inspection equipment is used as a liquid crystal panel inspection equipment to mainly inspect the poor appearance of the CUT process and the POL process panels and the poor polarizer. Among them, the CUT process is a process, and its main business is to cut the large plate into panels; the POL process is a process, and its main business is to attach the polarizer to the panel. Specifically, the automatic appearance inspection equipment mainly relies on the backlight source for illumination, and the reflected light enters the linear scanning camera to form a photo, and then judges according to the grayscale of the original photo, and detects and distinguishes the poor appearance through algorithm processing and recognition. Due to the weakening of the light source, the illumination of the light source of the automatic appearance inspection equipment will change. If the illumination of the light source changes, the brightness of the light source will change, which will eventually affect the change of the grayscale of the original image, resulting in a mismatch with the inspection parameters of the automatic appearance inspection equipment, resulting in a decrease in inspection capability and batch omission or over-inspection, which will eventually cause the process quality monitoring to fail. Therefore, the staff needs to manually debug the light source brightness and camera compensation value of the automatic appearance inspection equipment through the software, and use the camera to take a photo of the original image to determine whether the light source brightness meets the inspection requirements. However, manually debugging the light source brightness and camera compensation value cannot ensure effective monitoring and adjustment during the process, and manual adjustment operations are cumbersome and time-consuming, which can easily lead to failure in quality monitoring and have a significant impact on production capacity. Summary of the invention

[0004] In view of this, in order to solve the above-mentioned technical problems or part of the technical problems, the embodiments of the present application provide a calibration method, system, device and medium for a panel detection device.

[0005] In a first aspect, an embodiment of the present application provides a calibration method for a panel detection device, comprising:

[0006] Detection panel detection equipment light source illumination;

[0007] If the illumination of the light source does not meet the preset illumination requirement condition, obtaining the original image grayscale and calibration information corresponding to the panel detection device;

[0008] Determining camera gain compensation information or light source compensation information of the panel detection device according to the grayscale of the original image and the calibration information;

[0009] Calibration is performed according to the camera gain compensation information or the light source compensation information to obtain a calibration result of the panel detection device.

[0010] In a possible implementation manner, before obtaining the original image grayscale and calibration information corresponding to the panel detection device, the method further includes:

[0011] Comparing the light source illumination with a preset first light illumination calibration degree;

[0012] If the light source illumination is greater than the first light illumination calibration degree, determining that the light source illumination meets the preset illumination requirement condition;

[0013] If the light source illumination is less than or equal to the first light illumination calibration degree, it is determined that the light source illumination does not meet the preset illumination requirement condition.

[0014] In a possible implementation manner, the calibration information includes a second illumination calibration degree and grayscale calibration information, and determining the camera gain compensation information or the light source compensation information of the panel detection device according to the original image grayscale and the calibration information includes:

[0015] Comparing the light source illumination with a preset second illumination calibration degree, wherein the second illumination calibration degree is less than the first illumination calibration degree;

[0016] If the illumination of the light source is less than the second illumination calibration degree, determining the light source compensation information of the panel detection device according to the difference between the first illumination calibration degree and the grayscale of the original image;

[0017] If the illumination of the light source is greater than or equal to a preset second illumination calibration degree, the camera gain compensation information of the panel detection device is determined according to the grayscale of the original image and the grayscale calibration information.

[0018] In a possible implementation manner, obtaining the original image grayscale and calibration information corresponding to the panel detection device includes:

[0019] Obtaining a preset second illumination calibration degree corresponding to the panel detection device;

[0020] If the illumination of the light source is greater than or equal to a preset second illumination calibration degree, obtaining original image information acquired by an image acquisition device of the panel detection device;

[0021] The original image information is analyzed to obtain the grayscale of the original image.

[0022] In a possible implementation, the grayscale calibration information includes a first grayscale calibration value and a second grayscale calibration value, and determining the camera gain compensation information of the panel detection device according to the original image grayscale and the grayscale calibration information includes:

[0023] If the grayscale of the original image is greater than or equal to the first grayscale calibration value, determining the camera gain compensation information according to a grayscale difference between the grayscale of the original image and the second grayscale calibration value;

[0024] If the grayscale of the original image is less than the first grayscale calibration value, the first gain information is determined according to the difference between the first grayscale calibration value and the grayscale of the original image, and the second gain information is determined according to the difference between the second grayscale calibration value and the first grayscale calibration value, and the first gain information and the second gain information are accumulated to obtain the camera gain compensation information.

[0025] In a possible implementation manner, determining the camera gain compensation information according to a grayscale difference between the original image grayscale and the second grayscale calibration value includes:

[0026] Determining a grayscale difference between the grayscale of the original image and the second grayscale calibration value;

[0027] Obtaining a corresponding preset first gain grayscale coefficient according to the grayscale difference;

[0028] The camera gain compensation information is determined based on the step difference value and the first gain grayscale coefficient.

[0029] In a possible implementation manner, determining the first gain information according to the difference between the first grayscale calibration value and the grayscale of the original image includes:

[0030] Determining the grayscale increase amount according to the difference between the first grayscale calibration value and the grayscale of the original image;

[0031] The first gain information is determined based on a quotient of the grayscale increase amount and a preset second gain grayscale coefficient.

[0032] In a possible implementation manner, determining the second gain information according to the difference between the second grayscale calibration value and the first grayscale calibration value includes:

[0033] determining a grayscale difference quantity according to a difference between the second grayscale calibration value and the first grayscale calibration value;

[0034] The second gain information is determined based on a quotient of the grayscale difference quantity and a preset first gain grayscale coefficient.

[0035] In a possible implementation manner, performing correction according to the camera gain compensation information or the light source compensation information to obtain a correction result of the panel detection device includes:

[0036] According to the light source compensation information, adjusting the light source illumination of the panel detection device to obtain a light source illumination correction result of the panel detection device; and / or,

[0037] The camera gain of the panel detection device is adjusted according to the camera gain compensation information to obtain a camera gain correction result of the panel detection device.

[0038] In a second aspect, an embodiment of the present application provides a calibration system for a panel detection device, comprising:

[0039] Illuminance sensing module, used to detect the illumination of the light source of the panel detection equipment;

[0040] An acquisition module, used for acquiring the original image grayscale and calibration information corresponding to the panel detection device when the illumination of the light source does not meet the preset illumination requirement condition;

[0041] A compensation determination module, used to determine camera gain compensation information or light source compensation information of the panel detection device according to the grayscale of the original image and the calibration information;

[0042] The device calibration module is used to perform calibration according to the camera gain compensation information or the light source compensation information to obtain a calibration result of the panel detection device.

[0043] In a possible implementation manner, the correction system of the panel detection device further includes:

[0044] An illumination comparison module is used to compare the illumination of the light source with a preset first illumination calibration degree; if the illumination of the light source is greater than the first illumination calibration degree, it is determined that the illumination of the light source meets the preset illumination requirement conditions; if the illumination of the light source is less than or equal to the first illumination calibration degree, it is determined that the illumination of the light source does not meet the preset illumination requirement conditions.

[0045] In a possible implementation manner, in a correction system of a panel detection device, the calibration information includes second illumination calibration information and grayscale calibration information, and the compensation determination module includes:

[0046] an illumination comparison submodule, configured to compare the illumination of the light source with a preset second illumination calibration degree, wherein the second illumination calibration degree is smaller than the first illumination calibration degree;

[0047] a light source compensation submodule, configured to determine light source compensation information of the panel detection device according to a difference between the first light illumination calibration degree and the grayscale of the original image when the light source illumination is less than the second light illumination calibration degree;

[0048] The gain compensation submodule is used to determine the camera gain compensation information of the panel detection device according to the original image grayscale and the grayscale calibration information when the illumination of the light source is greater than or equal to a preset second illumination calibration degree.

[0049] In a third aspect, an embodiment of the present application provides a panel detection device, comprising: a processor, and a memory for storing executable instructions of the processor; wherein the processor is configured to execute a correction method for the panel detection device as described in any one of the first aspects.

[0050] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, a correction method for a panel detection device as described in any one of the first aspects is implemented.

[0051] The correction method, system, device and medium of the panel detection equipment provided in the embodiments of the present application detect the illumination of the light source of the panel detection equipment, and obtain the original image grayscale and calibration information corresponding to the panel detection equipment when the illumination of the light source does not meet the preset illumination requirement conditions, so as to determine the camera gain compensation information or the light source compensation information of the panel detection equipment according to the obtained original image grayscale and calibration information, and then perform correction according to the camera gain compensation information or the light source compensation information to obtain the correction result of the panel detection equipment, realize the automatic compensation function, effectively guarantee the product quality monitoring, and solve the problem of reduced detection capability of the panel detection equipment due to weak light source. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 A flowchart of a calibration method for a panel detection device provided in an embodiment of the present application;

[0053] Figure 2 A schematic diagram of a calibration process of a panel detection device in an example of the present application;

[0054] Figure 3 A flowchart of a calibration method for a panel detection device provided in an optional embodiment of the present application;

[0055] Figure 4 A structural block diagram of a correction system for a panel detection device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0057] In actual processing, the main factors affecting the brightness of the light source are the illumination of the light source itself and the gain value (Gain) of the camera. The illumination of the light source itself is usually 0 to 1000 lux. In display industries such as liquid crystal panels, the normal production setting of the production line is 700 Lux. The illumination parameter is set by the software and sent to the light source controller of the panel inspection equipment for input to set the illumination of the light source of the panel inspection equipment to 700 Lux. As the light source operates for a long time, the illumination of the light source will attenuate, resulting in the actual illumination not matching the required illumination of the panel inspection equipment. If the illumination of the light source attenuates, the grayscale of the original image will decrease, thereby affecting the grayscale of the original image captured by the panel inspection equipment, resulting in a decrease in the inspection capability of the panel inspection equipment.

[0058] One of the core concepts of the embodiments of the present application is to provide a correction method for a panel detection device, by detecting the illumination of the light source of the panel detection device, and when it is detected that the illumination of the light source does not meet the preset illumination requirement conditions, obtaining the original image grayscale and calibration information corresponding to the panel detection device, so as to determine the camera gain compensation information or the light source compensation information of the panel detection device based on the obtained original image grayscale and calibration information, so that correction can be performed based on the camera gain compensation information or the light source compensation information, thereby realizing real-time monitoring and automatic compensation functions of the light source illumination conditions, thereby solving the problem of reduced detection capability of the panel detection device caused by weak light source.

[0059] To facilitate understanding of the embodiments of the present application, further explanation will be given below with reference to specific embodiments in conjunction with the accompanying drawings. The embodiments do not constitute a limitation on the embodiments of the present application.

[0060] Reference Figure 1 , shows a flow chart of the steps of a calibration method for a panel detection device provided in an embodiment of the present application. In a specific implementation, the calibration method for a panel detection device provided in an embodiment of the present application may specifically include the following steps:

[0061] Step 110: Detect the illumination of the light source of the panel detection device.

[0062] The light source illumination of the panel detection device may refer to the actual illumination of the light source of the panel detection device. Specifically, the light source illumination of the panel detection device may be detected by a light source detection device such as a light source illumination digital sensor. For example, an illumination digital sensor may be added to the light source mechanism of the panel detection device to measure and check the light source illumination. Figure 2 As shown, the detected light source illumination can be used as reporting data and transmitted to the data analysis system through data transmission, so that after receiving the reporting data, the data analysis system can determine whether the light source illumination of the detection panel detection device meets the preset illumination requirement conditions based on the reporting data, so as to achieve the purpose of real-time monitoring of the light source illumination of the detection panel detection device. It should be noted that the light source illumination digital sensor, as a device for monitoring the illumination of the light source itself, can send the real-time detected light source brightness or light source illumination to the data analysis system.

[0063] Step 120: If the illumination of the light source does not meet the preset illumination requirement, the original image grayscale and calibration information corresponding to the panel detection device are obtained.

[0064] Specifically, when it is detected that the illumination of the light source of the panel detection device does not meet the preset illumination requirement conditions, the embodiment of the present application can obtain a preset second illumination calibration degree for the currently detected light source illumination, so as to determine whether it is necessary to adjust the illumination of the light source of the panel detection device by comparing the currently detected light source illumination with the preset second illumination calibration degree; if the currently detected light source illumination is less than the preset second illumination calibration degree, it can be determined that it is necessary to adjust the illumination of the light source of the panel detection device, and then the obtained first illumination calibration degree can be used as calibration information so that it can be subsequently adjusted according to the first light illumination. The calibration degree determines the light source compensation information corresponding to the light source illumination of the panel detection device, that is, executes step 130; if the currently detected light source illumination is greater than or equal to the preset second light illumination calibration degree, it can be determined that there is no need to adjust the light source illumination of the panel detection device, and the original image information captured by the image acquisition device of the panel detection device and the preset grayscale calibration information corresponding to the panel detection device can be obtained, and the original image grayscale corresponding to the panel detection device is determined according to the original image information, so as to subsequently determine the corresponding camera gain compensation information of the panel detection device according to the original image grayscale and the obtained grayscale calibration information, that is, execute step 130.

[0065] Of course, in the embodiment of the present application, when the currently detected light source illumination is equal to the preset second light illumination calibration degree, it can also be determined that there is no need to adjust the light source illumination of the panel detection device at present, and the original image information collected by the image acquisition device of the panel detection device is obtained to determine the original image grayscale according to the original image information, so as to subsequently adjust the camera gain of the panel detection device according to the original image grayscale and the preset grayscale calibration information, so as to achieve the purpose of automatically correcting the panel detection device. Among them, the second light illumination calibration degree can be a minimum threshold of light illumination calibration pre-set for panel detection, and the minimum threshold can be used to determine whether it is necessary to adjust the light source illumination of the panel detection device, such as it can be set to 650, etc., and the embodiment of the present application does not impose specific restrictions on this.

[0066] Step 130: Determine camera gain compensation information or light source compensation information of the panel detection device according to the grayscale of the original image and the calibration information.

[0067] In a specific implementation, the embodiment of the present application can pre-set a light illumination calibration degree for panel detection as a first light illumination calibration degree, and the first light illumination calibration degree can be a maximum light illumination calibration threshold pre-set for panel detection, which can be specifically used to determine whether the light source illumination meets the illumination requirement conditions detected by the panel detection device.

[0068] Specifically, after obtaining the original image grayscale and calibration information corresponding to the panel detection device, the embodiment of the present application can determine the camera gain compensation information or light source compensation information of the panel detection device according to the comparison result between the light source illumination of the panel detection device and the second light illumination calibration degree in the calibration information. Specifically, when the light source illumination of the panel detection device is less than the second light illumination calibration degree, it can be determined that the light source illumination of the panel detection device is adjusted, and then the light source compensation information of the panel detection device can be determined according to the difference between the preset first light illumination calibration degree and the original image grayscale, so that the light source illumination of the panel detection device can be adjusted according to the light source supplementary information in the future, so as to achieve the purpose of correcting the light source illumination of the panel detection device; when the light source illumination of the panel detection device is greater than the second light illumination calibration degree, it can be determined that the light source illumination of the panel detection device is not adjusted, and the camera gain compensation information of the panel detection device is determined according to the grayscale calibration information of the original image and the calibration information, so that the camera gain of the panel detection device can be adjusted according to the camera gain compensation information in the future, so that the light source brightness compensation can be performed by adjusting the camera gain, so as to achieve the purpose of correcting the camera gain of the panel detection device.

[0069] Furthermore, the calibration information of the embodiment of the present application may include a second illumination calibration degree and grayscale calibration information. The above-mentioned determination of the camera gain compensation information or the light source compensation information of the panel detection device based on the grayscale of the original image and the calibration information may specifically include: comparing the light source illumination with a preset second illumination calibration degree, wherein the second light illumination calibration degree is less than the first light illumination calibration degree; if the light source illumination is less than the second illumination calibration degree, then determining the light source compensation information of the panel detection device based on the difference between the first illumination calibration degree and the grayscale of the original image; if the light source illumination is greater than or equal to the preset second illumination calibration degree, then determining the camera gain compensation information of the panel detection device based on the grayscale of the original image and the grayscale calibration information.

[0070] Step 140 , performing calibration according to the camera gain compensation information or the light source compensation information to obtain a calibration result of the panel detection device.

[0071] Specifically, after determining the light source compensation information of the panel detection device, the embodiment of the present application can adjust the light source illumination of the panel detection device according to the light source compensation information, so as to automatically supplement the light source brightness by adjusting the light source illumination, that is, to realize the automatic compensation function; and after determining the camera gain compensation information of the panel detection device, the camera gain of the panel detection device can be adjusted according to the camera gain compensation information, so as to automatically supplement the light source brightness by adjusting the camera gain of the panel detection device, thereby avoiding the situation where the inspection capability is reduced due to the weakening of the light source, and can effectively ensure product quality monitoring.

[0072] Furthermore, the embodiments of the present application perform correction according to the camera gain compensation information or the light source compensation information to obtain a correction result of the panel detection device, which may specifically include: adjusting the light source illumination of the panel detection device according to the light source compensation information to obtain a light source illumination correction result of the panel detection device; and / or adjusting the camera gain of the panel detection device according to the camera gain compensation information to obtain a camera gain correction result of the panel detection device.

[0073] As an example of this application, Figure 2As shown, after the camera in the panel detection device captures the original image, the original image can be analyzed by the original image analysis system. For example, the original image analysis system can be used to analyze the average grayscale value of the area within the original image surface, and the average grayscale value of the area within the original image surface can be used as the original image grayscale corresponding to the panel detection device, and reported to the data transmission system, so that the original image grayscale is transmitted to the data analysis system through the data transmission system, so that the data analysis system can perform a comprehensive analysis based on the received digital information, and derive the illumination compensation value and the camera gain compensation value according to the actual situation, and can send the illumination compensation value and the camera gain compensation value to the light source control system through data transmission for automatic compensation. Among them, the illumination compensation value is used as the light source compensation information, and the light source control system can pass the illumination compensation value to the light source controller as the automatic parameter compensation information, so that the light source controller automatically adjusts the illumination of the light source according to the illumination compensation value, and obtains the light source illumination correction result of the panel detection device; similarly, the camera gain compensation value is used as the camera gain compensation information, and the light source control system can pass the camera gain compensation value to the light source controller, so that the light source controller automatically adjusts the gain of the camera according to the camera gain compensation value, and obtains the camera gain correction result of the panel detection device, so as to achieve the purpose of fine-tuning the camera Gain value according to the grayscale of the original image. It can be seen that the light source control system in the example of this application, as an execution block, adjusts the light source illumination or camera gain value by passing the automatic parameter compensation information to the light source controller or camera, thereby realizing the light source brightness adjustment, solving the problem of loss of production capacity caused by manual adjustment of light by staff in the prior art, and can meet the light source conditions required for detection of different products and components, and can effectively ensure product quality monitoring.

[0074] It should be noted that the original image analysis system in this example can be composed of inspection software and the original image; the inspection software can analyze the average grayscale of the display area of ​​the original image captured by the camera in real time, obtain the grayscale value used to represent the grayscale of the original image, and send the grayscale value to the data analysis system through the data transmission system; the data transmission system can mainly be used to send sensor value information and original image grayscale information to the data analysis system, such as transmitting the light source illumination detected by the illumination digital sensor to the data analysis system, and / or, sending the original image grayscale analyzed by the original image analysis system to the data analysis system; the data analysis system mainly performs comprehensive analysis on the digital information, and then sends the brightness compensation information to the light source controller system and sends the camera gain value to the camera setting parameters to realize automatic compensation of the light source brightness.

[0075] In actual processing, the embodiment of the present application can compare the detected light source illumination with the preset first light illumination calibration degree to determine whether the current light source illumination of the detection panel detection device meets the preset illumination requirement conditions, so that when the detected light source illumination is less than or equal to the first light illumination calibration degree, it can be determined that the current light source illumination of the panel detection device does not meet the preset illumination requirement conditions, and it is necessary to adjust the light source illumination or camera gain of the panel detection device to achieve the purpose of correcting the panel detection device. Further, the correction method of the panel detection device provided by the embodiment of the present application, before obtaining the original image grayscale and calibration information corresponding to the panel detection device, can also include: comparing the light source illumination with the preset first light illumination calibration degree; if the light source illumination is greater than the first light illumination calibration degree, it is determined that the light source illumination meets the preset illumination requirement conditions; if the light source illumination is less than or equal to the first light illumination calibration degree, it is determined that the light source illumination does not meet the preset illumination requirement conditions.

[0076] On the basis of the above-mentioned embodiments, optionally, the embodiments of the present application obtain the original image grayscale and calibration information corresponding to the panel detection device, which may specifically include: obtaining the preset second illumination calibration degree corresponding to the panel detection device; if the illumination of the light source is greater than or equal to the preset second illumination calibration degree, obtaining the original image information collected by the image acquisition device of the panel detection device; and analyzing the original image information to obtain the original image grayscale. Specifically, when the illumination of the light source does not meet the preset illumination requirement condition, the embodiments of the present application may obtain the second illumination calibration degree pre-set for the panel detection device, and may compare the illumination of the light source of the panel detection device currently detected with the second illumination calibration degree to determine whether it is necessary to obtain the original image information collected by the image acquisition device of the panel detection device according to the comparison result, so that when the illumination of the light source of the panel detection device currently detected is greater than or equal to the second illumination calibration degree, the original image information collected by the image acquisition device of the panel detection device may be obtained, such as obtaining the original image captured by the camera of the panel detection device. Information, and the original image information can be analyzed by the original image analysis system of the panel detection device to obtain the original image grayscale corresponding to the panel detection device, and the original image grayscale can include the average grayscale value of the area within the original image surface of the original image information; and when the currently detected light source illumination of the panel detection device is less than the second light illumination calibration degree, it is not necessary to obtain the original image analysis system of the panel detection device to analyze the original image information, and directly obtain the first light illumination calibration degree pre-set for the panel detection device, so as to determine the light source compensation information corresponding to the light source illumination of the panel detection device according to the first light illumination calibration degree.

[0077] Reference Figure 3, shows a flow chart of steps of a calibration method for a panel detection device provided in an optional embodiment of the present application. The calibration method for a panel detection device provided in an embodiment of the present application may specifically include the following steps:

[0078] Step 310: Detect the illumination of the light source of the panel detection device.

[0079] Step 320: compare the light source illumination with a preset first light illumination calibration level.

[0080] Step 330: If the light source illumination is less than or equal to the first illumination calibration degree, a second illumination calibration degree preset corresponding to the panel detection device is obtained.

[0081] Step 340: compare the light source illumination with a preset second illumination calibration degree, wherein the second illumination calibration degree is smaller than the first illumination calibration degree.

[0082] Specifically, after detecting the illumination of the light source of the panel detection device, the embodiment of the present application can compare the detected illumination of the light source with the preset first illumination calibration degree, so as to determine whether the illumination of the light source meets the preset illumination requirement conditions according to the comparison result between the illumination of the light source and the preset first illumination calibration degree. If the illumination of the light source is greater than the first illumination calibration degree, it can be determined that the illumination of the light source meets the preset illumination requirement conditions; if the illumination of the light source is less than or equal to the first illumination calibration degree, it can be determined that the illumination of the light source does not meet the preset illumination requirement conditions, and then the illumination of the light source can be compared with the preset second illumination calibration degree, so as to determine whether to adjust the illumination of the light source according to the comparison result between the illumination of the light source and the preset second illumination calibration degree. Specifically, when the illumination of the light source is less than the second illumination calibration degree, it can be determined that the illumination of the panel detection device needs to be adjusted, and then steps 350 and 360 are executed to automatically adjust the illumination of the light source of the panel detection device to realize the automatic supplement function of the light source brightness; when the illumination of the light source is greater than or equal to the second illumination calibration degree, such as when the illumination of the light source is within the range from the second illumination calibration degree to the first illumination calibration degree, it can be determined that the illumination of the panel detection device does not need to be adjusted, and then jump to step 370 to execute, so as to adjust the camera gain of the panel detection device by executing steps 370 and 380 to realize the automatic supplement function of the light source brightness.

[0083] Step 350: If the light source illumination is less than the second illumination calibration degree, light source compensation information of the panel detection device is determined according to the difference between the first illumination calibration degree and the grayscale of the original image.

[0084] Step 360: Adjust the illumination of the light source of the panel detection device according to the light source compensation information to obtain a correction result of the illumination of the light source of the panel detection device.

[0085] Specifically, in the embodiment of the present application, when the detected light source illumination is less than the preset second light illumination calibration degree, the light source illumination compensation value corresponding to the light source illumination can be calculated by the preset first light illumination calibration degree, and sent to the light source control system of the panel detection device as light source compensation information, so that the light source illumination is adjusted by the light source control system according to the light source compensation information, that is, the obtained light source illumination compensation value is sent to the light source control system for compensation, and the light source illumination correction result of the panel detection device is obtained. Among them, the light source illumination correction result of the panel detection device can refer to the adjusted and corrected light source illumination.

[0086] Step 370: If the illumination of the light source is greater than or equal to the second illumination calibration degree, the camera gain compensation information of the panel detection device is determined according to the grayscale of the original image and the grayscale calibration information.

[0087] Specifically, when the detected light source illumination is greater than or equal to a preset second light illumination calibration degree, the embodiment of the present application can obtain the original image information captured by the image acquisition device of the panel detection device, and can perform analysis based on the acquired original image information to obtain the original image grayscale corresponding to the original image grayscale, and then obtain grayscale calibration information for the original image grayscale to determine the camera gain compensation information of the panel detection device based on the original image grayscale and the grayscale calibration information.

[0088] Optionally, the grayscale calibration information in the embodiment of the present application may include a first grayscale calibration value and a second grayscale calibration value. The above-mentioned determining the camera gain compensation information of the panel detection device based on the grayscale of the original image and the grayscale calibration information may specifically include: if the grayscale of the original image is greater than or equal to the first grayscale calibration value, then determining the camera gain compensation information based on the grayscale difference between the grayscale of the original image and the second grayscale calibration value; if the grayscale of the original image is less than the first grayscale calibration value, then determining the first gain information based on the difference between the first grayscale calibration value and the grayscale of the original image, and determining the second gain information based on the difference between the second grayscale calibration value and the first grayscale calibration value, and performing accumulation processing based on the first gain information and the second gain information to obtain the camera gain compensation information.

[0089] Among them, the first grayscale calibration value can be determined according to the corresponding mapping relationship between the grayscale of the original image and the camera gain. For example, when the grayscale of the original image is greater than or equal to 30, the grayscale will increase by 5 for every increase of 1 in the camera gain value, and when the grayscale of the original image is less than 30, the grayscale will increase by 2 for every increase of 1 in the camera gain value. In this case, the first grayscale calibration value can be set to 30. The embodiment of the present application does not limit the specific numerical value of the first grayscale calibration value.

[0090] The second grayscale calibration value can be set according to the optimal grayscale of the display area. For example, when the grayscale range is 0 to 255, if it is determined through experiments and machine adjustment tests that the optimal grayscale of the display area is 70, the second grayscale calibration value can be set to 70. The embodiment of the present application does not limit the specific numerical value of the second grayscale calibration value.

[0091] Further, the embodiment of the present application may determine the camera gain compensation information based on the grayscale difference between the grayscale of the original image and the second grayscale calibration value, and specifically include: determining the grayscale difference between the grayscale of the original image and the second grayscale calibration value; obtaining a corresponding preset first gain grayscale coefficient for the grayscale difference; and determining the camera gain compensation information based on the grayscale difference and the first gain grayscale coefficient. The first gain grayscale coefficient may be a value that increases the grayscale when the grayscale of the original image is greater than or equal to the first grayscale calibration value, and the camera gain value increases by 1, such as 5, etc. The embodiment of the present application does not limit this.

[0092] For example, in combination with the above example, when the first grayscale calibration value is 30 and the second grayscale calibration value is 70, if the original image grayscale X is greater than or equal to the first grayscale calibration value, that is, when X≥3, the second grayscale calibration value 70 can be used to subtract the original image grayscale X to obtain the grayscale difference between the original image grayscale and the second grayscale calibration value, that is, the grayscale difference between the original image grayscale and the second grayscale calibration value is (70-X). If the corresponding preset first gain grayscale coefficient is 5 for the grayscale difference (70-X), then based on the grayscale difference (70-X) and the first gain grayscale coefficient 5, the calculated camera gain value Y can be determined as the camera gain compensation information according to the formula Y=(70-X) / 5.

[0093] In an optional embodiment, the embodiment of the present application determines the first gain information according to the difference between the first grayscale calibration value and the grayscale of the original image, specifically including: determining the grayscale increase amount according to the difference between the first grayscale calibration value and the grayscale of the original image; determining the first gain information based on the quotient of the grayscale increase amount and a preset second gain grayscale coefficient. Further, the above-mentioned determination of the second gain information according to the difference between the second grayscale calibration value and the first grayscale calibration value specifically includes: determining the grayscale difference amount according to the difference between the second grayscale calibration value and the first grayscale calibration value; determining the second gain information based on the quotient of the grayscale difference amount and a preset first gain grayscale coefficient. Among them, the second gain grayscale coefficient can be a value that the grayscale will increase when the grayscale of the original image is less than the first grayscale calibration value, and the camera gain value increases by 1, such as 2, etc., and the embodiment of the present application does not limit this.

[0094] For example, in combination with the above example, when the grayscale X of the original image is less than the first grayscale calibration value 30, that is, when X<30, the first grayscale calibration value 30 may be used to subtract the grayscale X of the original image to obtain the difference (30-X) between the first grayscale calibration value and the grayscale of the original image, and the difference (30-X) between the first grayscale calibration value and the grayscale of the original image may be used as the grayscale increase amount, so as to determine the first gain information by taking the quotient of the grayscale increase amount and the preset second gain grayscale coefficient. For example, when the second gain grayscale coefficient is 2, the quotient of the grayscale increase amount and the preset second gain grayscale coefficient is (30-X) / 2, so that the value of (30-X) / 2 may be used to determine the first gain information; Furthermore, the difference (70-30) between the second grayscale calibration value 70 and the first grayscale calibration value 30 can be determined as the grayscale difference quantity, so as to determine the second gain information based on the quotient of the grayscale difference quantity and the preset first gain grayscale coefficient. For example, when the first gain grayscale coefficient is 5, the quotient of the grayscale difference quantity and the preset first gain grayscale coefficient is (70-30) / 5, so that the second gain information can be determined by the value of (70-30) / 5; thus, according to the formula Y=(30-X) / 2+(70-30) / 5, the first gain information and the second gain information are accumulated and processed to determine the calculated camera gain value Y as the camera gain compensation information.

[0095] Step 380: Adjust the camera gain of the panel detection device according to the camera gain compensation information to obtain a camera gain correction result of the panel detection device.

[0096] Specifically, in the embodiment of the present application, when the illumination of the light source is greater than or equal to the preset second illumination calibration degree, the camera gain supplement value is calculated according to the grayscale of the original image and the grayscale calibration information, and is sent to the light source control system of the panel detection device for compensation as the camera gain compensation information, that is, the camera gain value is fine-tuned and compensated according to the grayscale of the original image to obtain the camera gain calibration result of the panel detection device. Among them, the camera gain calibration result of the panel detection device may refer to the adjusted and corrected camera gain value.

[0097] As an example of the present application, when the light source illumination standard is 700 and the grayscale is reduced by 5 for every 100 decrease in light source illumination, before importing the correction system of the panel detection equipment, the light source illumination setting can be uniformly compared and calibrated to 700 with the light source illumination digital sensor value, and the grayscale of the original image display area can be set to 70, that is, the preset first light illumination calibration degree is set to 700 in advance, and the preset second grayscale calibration value is set to 70. If the preset second light illumination calibration degree is set to 650, the detected light source illumination L1 can be compared with the preset first light illumination calibration degree 700 and the second light illumination calibration degree 650 to realize real-time monitoring of the light source illumination conditions of the panel detection equipment and analysis of the grayscale of the original image, thereby realizing the automatic compensation function of the light source brightness and camera parameters.

[0098] Specifically, when it is detected that the actual sensing value of the light source illumination L1 of the panel detection device is within the range of 650 to 700, it can be determined that the grayscale of the original image is lower than the second grayscale calibration value 70, and the correction system of the panel detection device can determine that the light source illumination is not adjusted, and then the light source illumination compensation can be performed by adjusting the camera Gain value. Specifically, the grayscale value X obtained by the original image analysis system can be compared with the first grayscale calibration value 30, such as by processing and calculating through the data analysis system. If the grayscale value X obtained by the original image analysis system is less than the first grayscale calibration value 30, the camera gain value compensation value Y can be calculated according to the formula Y=(30-X) / 2+(70-30) / 5; if the grayscale value X obtained by the original image analysis system is greater than 30, the camera gain value compensation value Y can be calculated according to the formula Y=(70-X) / 5. Subsequently, the camera gain value compensation value Y can be sent to the light source control system through data transmission, so that the light source control system can realize light source illumination compensation based on the camera gain value compensation value Y by increasing the variable by the Gain value.

[0099] When it is detected that the illumination L1 of the light source of the panel detection device is lower than 650, the correction system of the panel detection device can determine that the illumination of the light source needs to be adjusted, and then the illumination compensation value L of the light source can be calculated through the illumination value of the light source transmitted by the illumination sensor. For example, the illumination compensation value L of the light source can be calculated according to the formula L=700-L1, and the calculated illumination compensation value L can be sent to the light source control system for compensation, and then the camera Gain value can be fine-tuned and compensated according to the grayscale of the original image.

[0100] For example, when the light source illumination L1 is 680, the camera Gain value is 16, and the original image grayscale X is 64, it can be determined that the light source illumination does not need to be compensated. The camera Gain compensation value Y can be calculated to be 1.2 according to the formula Y==(70-64) / 5, and the camera Gain compensation value 1.2 can be sent to the light source control system, so that the light source control system can adjust the camera gain based on the camera Gain compensation value 1.2, that is, the actual input value of the camera gain is 17.2, thereby realizing automatic compensation.

[0101] In summary, the embodiment of the present application detects the illumination of the light source of the panel detection device, and when it is detected that the illumination of the light source does not meet the preset illumination requirement conditions, obtains the original image grayscale and calibration information corresponding to the panel detection device, so as to determine the camera gain compensation information or the light source compensation information of the panel detection device based on the obtained original image grayscale and calibration information, so that correction can be performed based on the camera gain compensation information or the light source compensation information, thereby realizing real-time monitoring and automatic compensation functions of the light source illumination conditions, thereby solving the problem of reduced detection capability of the panel detection equipment due to weak light source, avoiding manual adjustment of light by personnel and causing loss of production capacity, and meeting the required light source conditions for detection of different products and components, which can effectively ensure product quality monitoring.

[0102] It should be noted that, for the purpose of simple description, the method embodiments are expressed as a series of action combinations, but those skilled in the art should be aware that the embodiments of the present application are not limited to the described order of actions, because according to the embodiments of the present application, certain steps may be performed in other orders or simultaneously.

[0103] Furthermore, the present application also provides a calibration system for a panel detection device. Figure 4 As shown, the calibration system 400 of the panel detection device provided in the embodiment of the present application may include the following modules:

[0104] Illuminance sensing module 410, used to detect the illumination of the light source of the panel detection device;

[0105] An acquisition module 420, configured to acquire the original image grayscale and calibration information corresponding to the panel detection device when the illumination of the light source does not meet the preset illumination requirement condition;

[0106] A compensation determination module 430, configured to determine camera gain compensation information or light source compensation information of the panel detection device according to the grayscale of the original image and the calibration information;

[0107] The device calibration module 440 is used to perform calibration according to the camera gain compensation information or the light source compensation information to obtain a calibration result of the panel detection device.

[0108] Optionally, the correction system of the above-mentioned panel detection device also includes: an illumination comparison module. The illumination comparison module is used to compare the illumination of the light source with a preset first illumination calibration degree; if the illumination of the light source is greater than the first illumination calibration degree, it is determined that the illumination of the light source meets the preset illumination requirement condition; if the illumination of the light source is less than or equal to the first illumination calibration degree, it is determined that the illumination of the light source does not meet the preset illumination requirement condition. For example, the illumination comparison module is specifically used to compare the illumination of the light source with a preset first illumination calibration degree before the acquisition module 420 acquires the original image grayscale and calibration information corresponding to the panel detection device; when the illumination of the light source is greater than the first illumination calibration degree, it is determined that the illumination of the light source meets the preset illumination requirement condition; when the illumination of the light source is less than or equal to the first illumination calibration degree, it is determined that the illumination of the light source does not meet the preset illumination requirement condition, and then trigger the acquisition module 420 to acquire the original image grayscale and calibration information corresponding to the panel detection device.

[0109] Optionally, the calibration information in the embodiment of the present application may include second illumination calibration information and grayscale calibration information, and the compensation determination module 430 may include the following submodules:

[0110] an illumination comparison submodule, configured to compare the illumination of the light source with a preset second illumination calibration degree, wherein the second illumination calibration degree is smaller than the first illumination calibration degree;

[0111] a light source compensation submodule, configured to determine light source compensation information of the panel detection device according to a difference between the first light illumination calibration degree and the grayscale of the original image when the light source illumination is less than the second light illumination calibration degree;

[0112] The gain compensation submodule is used to determine the camera gain compensation information of the panel detection device according to the original image grayscale and the grayscale calibration information when the illumination of the light source is greater than or equal to a preset second illumination calibration degree.

[0113] Optionally, the acquisition module 420 may include the following submodules:

[0114] A second light illumination calibration degree acquisition submodule, used for acquiring a preset second light illumination calibration degree corresponding to the panel detection device;

[0115] An original image information acquisition module, used to acquire the original image information acquired by the image acquisition device of the panel detection device when the illumination of the light source is greater than or equal to a preset second illumination calibration degree;

[0116] The original image analysis submodule is used to analyze the original image information to obtain the grayscale of the original image.

[0117] Optionally, the grayscale calibration information in the embodiment of the present application includes a first grayscale calibration value and a second grayscale calibration value, and the compensation determination module 430 includes:

[0118] A first camera gain compensation submodule, configured to determine the camera gain compensation information according to a grayscale difference between the original image grayscale and the second grayscale calibration value when the original image grayscale is greater than or equal to the first grayscale calibration value;

[0119] The second camera gain compensation submodule is used to determine the first gain information according to the difference between the first grayscale calibration value and the grayscale of the original image when the grayscale of the original image is less than the first grayscale calibration value, and to determine the second gain information according to the difference between the second grayscale calibration value and the first grayscale calibration value, and to perform accumulation processing based on the first gain information and the second gain information to obtain the camera gain compensation information.

[0120] Optionally, the first camera gain compensation submodule includes:

[0121] a grayscale difference determination unit, configured to determine a grayscale difference between the grayscale of the original image and the second grayscale calibration value;

[0122] A first gain grayscale coefficient unit, used for acquiring a corresponding preset first gain grayscale coefficient according to the grayscale difference;

[0123] The first camera gain compensation subunit is used to determine the camera gain compensation information based on the step difference value and the first gain grayscale coefficient.

[0124] Optionally, the second camera gain compensation submodule includes:

[0125] A grayscale increase amount unit, used to determine the grayscale increase amount according to the difference between the first grayscale calibration value and the grayscale of the original image;

[0126] A first gain information unit, configured to determine the first gain information based on a quotient of the grayscale increase amount and a preset second gain grayscale coefficient;

[0127] a grayscale difference quantity unit, configured to determine the grayscale difference quantity according to the difference between the second grayscale calibration value and the first grayscale calibration value;

[0128] The second gain information unit is used to determine the second gain information based on the quotient of the grayscale difference quantity and a preset first gain grayscale coefficient.

[0129] Optionally, the device calibration module 440 includes:

[0130] a light source illumination correction submodule, used to adjust the light source illumination of the panel detection device according to the light source compensation information to obtain a light source illumination correction result of the panel detection device; and / or,

[0131] The camera gain correction submodule is used to adjust the camera gain of the panel detection device according to the camera gain compensation information to obtain the camera gain correction result of the panel detection device.

[0132] It should be noted that the correction system of the panel detection device provided above can execute the correction method of the panel detection device provided in any embodiment of the present application, and has the corresponding functions and beneficial effects of the execution method.

[0133] In a specific implementation, the correction system of the above-mentioned panel detection device can be applied to panel detection devices such as automatic appearance inspection equipment for liquid crystal panels, so that the panel detection device can realize real-time monitoring of light source illumination conditions and analysis of the grayscale of the original image, and can automatically compensate for the light source brightness and camera parameters according to the analysis results, thereby avoiding the situation where the inspection capability is reduced due to the weakening of the light source, and can effectively ensure product quality monitoring, and realize automatic adjustment of the light source illumination and automatic adjustment of the camera gain, thereby realizing automatic compensation of the light source brightness of the panel detection device, solving the problem of production capacity loss caused by the need for personnel to manually adjust the light source in the prior art, and at the same time, meeting the light source and grayscale conditions required for different product and component inspections. Furthermore, an embodiment of the present application also provides a panel detection device, including: a processor, and a memory for storing executable instructions of the processor; wherein the processor is configured to execute the correction method of the panel detection device as described in any of the above method embodiments.

[0134] An embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the correction method for the panel detection device as described in any one of the above method embodiments are implemented.

[0135] It should be noted that, for the system, device, and storage medium embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0136] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0137] The professionals should also be further aware that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0138] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above description is only the specific implementation method of the present application and is not intended to limit the scope of protection of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A calibration method for a panel detection device, characterized in that: include: Detection panel detection equipment light source illumination; If the illumination of the light source does not meet the preset illumination requirement condition, obtaining the original image grayscale and calibration information corresponding to the panel detection device; Determining camera gain compensation information or light source compensation information of the panel detection device according to the grayscale of the original image and the calibration information; Performing correction according to the camera gain compensation information or the light source compensation information to obtain a correction result of the panel detection device; Before obtaining the original image grayscale and calibration information corresponding to the panel detection device, the method further includes: Comparing the light source illumination with a preset first light illumination calibration degree; If the light source illumination is greater than the first light illumination calibration degree, determining that the light source illumination meets the preset illumination requirement condition; If the light source illumination is less than or equal to the first illumination calibration degree, it is determined that the light source illumination does not meet the preset illumination requirement condition; The calibration information includes a second illumination calibration degree and grayscale calibration information, and determining the camera gain compensation information or the light source compensation information of the panel detection device according to the grayscale of the original image and the calibration information includes: Comparing the light source illumination with a preset second illumination calibration degree, wherein the second illumination calibration degree is less than the first illumination calibration degree; If the illumination of the light source is less than the second illumination calibration degree, determining the light source compensation information of the panel detection device according to the difference between the first illumination calibration degree and the grayscale of the original image; If the illumination of the light source is greater than or equal to a preset second illumination calibration degree, the camera gain compensation information of the panel detection device is determined according to the grayscale of the original image and the grayscale calibration information.

2. The calibration method of the panel detection device according to claim 1, characterized in that: The obtaining of the original image grayscale and calibration information corresponding to the panel detection device includes: Obtaining a preset second illumination calibration degree corresponding to the panel detection device; If the illumination of the light source is greater than or equal to a preset second illumination calibration degree, obtaining original image information acquired by an image acquisition device of the panel detection device; The original image information is analyzed to obtain the grayscale of the original image.

3. The calibration method of the panel detection device according to claim 1, characterized in that: The grayscale calibration information includes a first grayscale calibration value and a second grayscale calibration value, and determining the camera gain compensation information of the panel detection device according to the original image grayscale and the grayscale calibration information includes: If the grayscale of the original image is greater than or equal to the first grayscale calibration value, determining the camera gain compensation information according to a grayscale difference between the grayscale of the original image and the second grayscale calibration value; If the grayscale of the original image is less than the first grayscale calibration value, the first gain information is determined according to the difference between the first grayscale calibration value and the grayscale of the original image, and the second gain information is determined according to the difference between the second grayscale calibration value and the first grayscale calibration value, and the first gain information and the second gain information are accumulated to obtain the camera gain compensation information.

4. The calibration method of the panel detection device according to claim 3, characterized in that: The determining the camera gain compensation information according to the grayscale difference between the original image grayscale and the second grayscale calibration value comprises: Determining a grayscale difference between the grayscale of the original image and the second grayscale calibration value; Obtaining a corresponding preset first gain grayscale coefficient according to the grayscale difference; The camera gain compensation information is determined based on the step difference value and the first gain grayscale coefficient.

5. The calibration method of the panel detection device according to claim 3, characterized in that: The determining the first gain information according to the difference between the first grayscale calibration value and the original image grayscale includes: Determining the grayscale increase amount according to the difference between the first grayscale calibration value and the grayscale of the original image; The first gain information is determined based on a quotient of the grayscale increase amount and a preset second gain grayscale coefficient.

6. The calibration method of the panel detection device according to claim 3, characterized in that: The determining the second gain information according to the difference between the second grayscale calibration value and the first grayscale calibration value comprises: determining a grayscale difference quantity according to a difference between the second grayscale calibration value and the first grayscale calibration value; The second gain information is determined based on a quotient of the grayscale difference quantity and a preset first gain grayscale coefficient.

7. The calibration method of the panel detection device according to claim 1, characterized in that: The performing correction according to the camera gain compensation information or the light source compensation information to obtain the correction result of the panel detection device includes: According to the light source compensation information, adjusting the light source illumination of the panel detection device to obtain a light source illumination correction result of the panel detection device; and / or, The camera gain of the panel detection device is adjusted according to the camera gain compensation information to obtain a camera gain correction result of the panel detection device.

8. A calibration system for a panel inspection device, characterized in that: include: Illuminance sensing module, used to detect the illumination of the light source of the panel detection equipment; An acquisition module, used for acquiring the original image grayscale and calibration information corresponding to the panel detection device when the illumination of the light source does not meet the preset illumination requirement condition; A compensation determination module, used to determine camera gain compensation information or light source compensation information of the panel detection device according to the grayscale of the original image and the calibration information; A device calibration module, used for performing calibration according to the camera gain compensation information or the light source compensation information to obtain a calibration result of the panel detection device; An illumination comparison module is used to compare the illumination of the light source with a preset first illumination calibration degree; if the illumination of the light source is greater than the first illumination calibration degree, it is determined that the illumination of the light source meets the preset illumination requirement condition; if the illumination of the light source is less than or equal to the first illumination calibration degree, it is determined that the illumination of the light source does not meet the preset illumination requirement condition; The calibration information includes a second illumination calibration degree and grayscale calibration information, and the compensation determination module includes: an illumination comparison submodule, configured to compare the illumination of the light source with a preset second illumination calibration degree, wherein the second illumination calibration degree is smaller than the first illumination calibration degree; a light source compensation submodule, configured to determine light source compensation information of the panel detection device according to a difference between the first light illumination calibration degree and the grayscale of the original image when the light source illumination is less than the second light illumination calibration degree; The gain compensation submodule is used to determine the camera gain compensation information of the panel detection device according to the original image grayscale and the grayscale calibration information when the illumination of the light source is greater than or equal to a preset second illumination calibration degree.

9. A panel detection device, characterized in that: include: A processor, and a memory for storing executable instructions of the processor; wherein the processor is configured to execute the correction method of the panel detection device according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the correction method of the panel detection device according to any one of claims 1 to 7 is implemented.

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