CN117275377A - Light leakage detection method and device for miniature LED panel, electronic equipment and medium - Google Patents
Light leakage detection method and device for miniature LED panel, electronic equipment and medium Download PDFInfo
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The application relates to the technical field of image processing, in particular to a light leakage detection method and device of a miniature LED panel, electronic equipment and a medium. The light leakage detection method of the miniature LED panel comprises the following steps: receiving a brightness detection image sent by the acquisition equipment, and adjusting the image brightness of the brightness detection image based on the relative positions of the acquisition equipment and each lamp bead on the miniature LED panel to determine a target brightness image; carrying out gray scale processing on the target brightness image, and determining a target brightness gray scale image corresponding to the target brightness image; analyzing the target brightness gray level graph to determine brightness distribution information, and dividing the target brightness gray level graph into a plurality of brightness distribution areas according to the brightness distribution information; according to the brightness distribution information and the brightness distribution areas, the abnormal average brightness of each brightness distribution area is determined, so that the abnormal brightness distribution area is determined based on the abnormal average brightness and a preset brightness threshold value, and the detection accuracy of light leakage in a micro range of the micro LED panel is improved.
Description
Technical Field
The application relates to the technical field of image processing, in particular to a light leakage detection method and device of a miniature LED panel, electronic equipment and a medium.
Background
The micro LED panel is short for Mini-LED panel. Mini-LEDs are a display technology that divides an LED backlight into small-sized LED lattices, each of which is called a Mini-LED, having smaller LED size and higher brightness and contrast performance, and are widely used in the field of display screens with the development of scientific technology. The micro LED panel may be mounted in a micro LED backlight liquid crystal display, the micro LED panel being used as a backlight for illuminating a display screen by means of a luminescent backlight. Thus, the miniature LED backlight liquid crystal display can display images, characters, videos and the like. After the micro LED panel is mounted in the micro LED backlight lcd, if light leakage occurs in the micro LED panel, uneven brightness occurs in the edge or corner area of the micro LED backlight lcd and over-bright or over-dark occurs in some areas.
In the related art, a uniformity detection tool or software is generally used to test the screen of the micro-backlight liquid crystal LED display, and if there is a significant area with uneven brightness or excessive brightness, light leakage may occur. However, if light leakage exists in a micro range on the micro LED panel, the current light leakage detection method may generate detection omission, resulting in lower detection accuracy of light leakage in the micro range of the micro LED panel.
Disclosure of Invention
In order to improve the accuracy of light leakage detection of a miniature LED panel, the application provides a light leakage detection method, device, electronic equipment and medium of the miniature LED panel.
In a first aspect, the present application provides a light leakage detection method of a micro LED panel, including:
receiving a brightness detection image sent by acquisition equipment, and adjusting the brightness of the brightness detection image based on the relative position of the acquisition equipment and each lamp bead on a miniature LED panel to determine a target brightness image;
carrying out gray scale processing on the target brightness image, and determining a target brightness gray scale image corresponding to the target brightness image;
analyzing the target brightness gray level map, determining brightness distribution information, and dividing the target brightness gray level map into a plurality of brightness distribution areas according to the brightness distribution information;
and determining abnormal average brightness of each brightness distribution area according to the brightness distribution information and the brightness distribution areas, so as to determine the abnormal brightness distribution area based on the abnormal average brightness and a preset brightness threshold, wherein the area average brightness of the abnormal brightness distribution area is the abnormal average brightness.
By adopting the technical scheme, certain brightness loss can be caused by the distance between the acquisition equipment and the lamp beads with different distances, so that the brightness corresponding to the brightness detection image can be inaccurate. The brightness detection image can be adjusted based on the relative positions of the acquisition equipment and each lamp bead on the miniature LED panel, and the real luminous condition is restored. And carrying out gray scale processing on the adjusted target brightness image, converting the color image into a gray scale image so as to further process and analyze the brightness distribution information of the target, further carrying out region division on the target brightness gray scale image, carrying out careful analysis on each brightness distribution region to obtain abnormal average brightness, determining that light leakage exists in the micro LED panel, and improving the detection accuracy of light leakage in the micro range of the micro LED panel.
Optionally, the image brightness adjustment includes pixel compensation; based on the relative position of the acquisition device and each bead on the micro LED panel, performing image brightness adjustment on the brightness detection image, and determining a target brightness image, including:
determining a light propagation path corresponding to each lamp bead based on the relative positions of the acquisition equipment and each lamp bead on the miniature LED panel;
acquiring the light intensity loss corresponding to the light propagation path;
and carrying out pixel compensation on the brightness detection image according to the light intensity loss, and determining a target brightness image.
By adopting the technical scheme, the light propagation path corresponding to each lamp bead is determined by considering the relative positions of the acquisition equipment and each lamp bead on the miniature LED panel, and the positions of each lamp bead and the distance from the acquisition equipment are considered, so that the brightness of an image is more accurately adjusted. And then correspondingly acquiring the light intensity loss corresponding to the light propagation path, and considering the possible loss of light in the propagation process, thereby more accurately adjusting the brightness of the image. Pixel compensation is performed on the luminance detection image according to the light intensity loss, and the pixels of the image can be adjusted according to the light intensity loss, thereby determining the target luminance image more accurately. The whole device can restore the real luminous condition more accurately, and determine the brightness distribution condition more carefully so as to identify the abnormal brightness distribution area more accurately, thereby improving the accuracy and the detection effect of light leakage detection of the micro LED panel more effectively.
Optionally, the determining the abnormal brightness distribution area based on the abnormal average brightness and a preset brightness threshold includes:
for each brightness distribution area, determining whether the brightness of the brightness distribution area is abnormal brightness according to the average brightness of the area corresponding to the brightness distribution area and a preset brightness threshold;
if the brightness of the brightness distribution area is abnormal brightness, analyzing the brightness distribution area to determine a plurality of sub brightness distribution information;
analyzing the sub-brightness distribution information to determine abnormal characteristics of the abnormal brightness, wherein the abnormal characteristics comprise local brightness abnormality and continuous brightness abnormality;
and if the abnormal characteristic of the abnormal brightness is local brightness abnormality, determining the brightness distribution area as an abnormal brightness distribution area.
By adopting the technical scheme, whether the brightness of each brightness distribution area is abnormal brightness or not is determined according to the average brightness of the corresponding area and the preset brightness threshold value, so that the brightness abnormal distribution area can be rapidly and effectively detected, and the accuracy of light leakage detection is improved. If the brightness of a certain brightness distribution area is determined to be abnormal brightness, the area is analyzed to determine a plurality of sub-brightness distribution information thereof, and the reason for the abnormal brightness is further analyzed to provide reference for subsequent repair and improvement. According to the sub-brightness distribution information, abnormal characteristics of abnormal brightness, including local brightness abnormality and continuous brightness abnormality, can be analyzed, the expression form of the brightness abnormality can be carefully researched, and accurate guidance is provided for repairing and improving. If the abnormal characteristic of the abnormal brightness is local brightness abnormality, the brightness distribution area can be determined to be the abnormal brightness distribution area, and the area with local brightness abnormality can be accurately identified, so that the accuracy and the detection effect of light leakage detection are effectively improved.
Optionally, the method further comprises:
obtaining a lamp on the micro LED panel the luminescent properties and the duration of use of the beads;
determining the light leakage influence range of the lamp beads according to the luminous attribute and the using time length;
and adjusting the abnormal brightness distribution area based on the light leakage influence range to determine a target brightness analysis area so as to analyze the target brightness analysis area and determine light leakage lamp beads.
By adopting the technical scheme, the luminous attribute and the service time of the lamp beads on the miniature LED panel are obtained, and the characteristics and the service condition of the lamp beads are considered, so that the influence range of light leakage is more accurately determined. And then the light leakage influence range of the lamp beads is determined according to the light emitting attribute and the using time length, and the characteristics and the using condition of the lamp beads can be considered, so that the light leakage position can be more accurately determined. And adjusting the abnormal brightness distribution area based on the light leakage influence range, determining a target brightness analysis area, and more accurately determining the area to be analyzed, thereby more effectively determining the light leakage lamp beads.
Optionally, the method further comprises:
determining coordinate data corresponding to each lamp bead based on the relative positions of the acquisition equipment and each lamp bead on the miniature LED panel;
According to a plurality of abnormal brightness distribution areas, a plurality of coordinate data corresponding to the abnormal brightness distribution areas, the light leakage influence range of the lamp beads and the abnormal area distance threshold, determining whether a light leakage offset region exists;
and if the light leakage offset region exists, determining the light leakage offset region as a target brightness analysis region.
By adopting the technical scheme, the coordinate data corresponding to each lamp bead is determined, the position of each lamp bead can be accurately determined, and basic data is provided for subsequent light leakage offset analysis. And then according to the abnormal brightness distribution areas and the coordinate data, determining the light leakage influence range of the lamp beads, accurately determining the light leakage influence range of each lamp bead, and providing a reference for subsequent light leakage offset analysis. Then, by determining whether the light leakage offset region exists or not through the light leakage influence range and the abnormal region distance threshold value, a plurality of factors can be considered, and therefore the light leakage offset region can be determined more accurately. If the light leakage offset region exists, the light leakage offset region is determined as a target brightness analysis region, and the region to be analyzed is more accurately determined, so that the light leakage lamp beads are more effectively determined. The omission of light leakage problem is avoided, and meanwhile, the accuracy and the effect of light leakage detection and repair of the miniature LED panel are improved.
In a second aspect, the present application provides a light leakage detection device of a micro LED panel, including:
the target brightness image determining module is used for receiving the brightness detection image sent by the acquisition equipment, and adjusting the image brightness of the brightness detection image based on the relative position of the acquisition equipment and each lamp bead on the miniature LED panel to determine a target brightness image;
the target brightness gray level image determining module is used for carrying out gray level processing on the target brightness image and determining a target brightness gray level image corresponding to the target brightness image;
the brightness distribution area dividing module is used for analyzing the target brightness gray level image, determining brightness distribution information and dividing the target brightness gray level image into a plurality of brightness distribution areas according to the brightness distribution information;
the abnormal brightness distribution area determining module is used for determining abnormal average brightness of each brightness distribution area according to the brightness distribution information and the brightness distribution areas so as to determine the abnormal brightness distribution area based on the abnormal average brightness and a preset brightness threshold value, wherein the area average brightness of the abnormal brightness distribution area is the abnormal average brightness.
Optionally, the image brightness adjustment includes pixel compensation; the target brightness image the determining module is specifically configured to:
Determining a light propagation path corresponding to each lamp bead based on the relative positions of the acquisition equipment and each lamp bead on the miniature LED panel;
acquiring the light intensity loss corresponding to the light propagation path;
and carrying out pixel compensation on the brightness detection image according to the light intensity loss, and determining a target brightness image.
Optionally, the abnormal brightness distribution area determining module is specifically configured to:
for each brightness distribution area, determining whether the brightness of the brightness distribution area is abnormal brightness according to the average brightness of the area corresponding to the brightness distribution area and a preset brightness threshold;
if the brightness of the brightness distribution area is abnormal brightness, analyzing the brightness distribution area to determine a plurality of sub brightness distribution information;
analyzing the sub-brightness distribution information to determine abnormal characteristics of the abnormal brightness, wherein the abnormal characteristics comprise local brightness abnormality and continuous brightness abnormality;
and if the abnormal characteristic of the abnormal brightness is local brightness abnormality, determining the brightness distribution area as an abnormal brightness distribution area.
Optionally, the light leakage detection device of the micro LED panel further includes a target brightness analysis area determining module, configured to:
Acquiring the luminous attribute and the service time of the lamp beads on the miniature LED panel;
based on the lighting properties and the duration of use, determining the light leakage influence range of the lamp beads;
and adjusting the abnormal brightness distribution area based on the light leakage influence range to determine a target brightness analysis area so as to analyze the target brightness analysis area and determine light leakage lamp beads.
Optionally, the light leakage detection device of the micro LED panel further includes a light leakage cancellation area determining module, configured to:
determining coordinate data corresponding to each lamp bead based on the relative positions of the acquisition equipment and each lamp bead on the miniature LED panel;
determining whether a light leakage offset region exists according to a plurality of abnormal brightness distribution regions, a plurality of coordinate data corresponding to the abnormal brightness distribution regions, a light leakage influence range of the lamp beads and an abnormal region distance threshold;
and if the light leakage offset region exists, determining the light leakage offset region as a target brightness analysis region.
In a third aspect, the present application provides an electronic device, comprising: a memory and a processor, the memory having stored thereon a computer program capable of being loaded by the processor and performing the method of the first aspect.
In a fourth aspect, the present application provides a computer readable storage medium storing a computer program capable of being loaded by a processor and performing the method of the first aspect.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief description will be given below of the drawings that are needed in the embodiments or the prior art descriptions, it being obvious that the drawings in the following description are some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a schematic view of an application scenario provided in an embodiment of the present application;
fig. 2 is a flowchart of a light leakage detection method of a micro LED panel according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a micro LED panel according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a light leakage detection device of a micro LED panel according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
In addition, the term "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In this context, unless otherwise specified, the term "/" generally indicates that the associated object is an "or" relationship.
Embodiments of the present application are described in further detail below with reference to the drawings attached hereto.
After the micro LED panel is mounted into the micro LED backlight lcd, the micro LED backlight lcd may be used by a user. Since the micro LED panel is disposed inside the LED backlight lcd, when some light leakage occurs in the micro LED panel, a large area of display may not be generated on the micro LED backlight lcd, and it is difficult to detect a small light leakage condition by detecting the screen of the micro backlight lcd. When the screen of the micro backlight liquid crystal LED display has the phenomena of large-area over-brightness, over-darkness and uneven brightness, the normal use of a user is influenced, and the use experience of the user is seriously influenced at the moment, so that before the screen of the micro backlight liquid crystal LED display directly shows the light leakage condition of the micro LED panel, the accurate detection of the micro light leakage of the micro LED panel is very important, so that the instant feedback is facilitated.
Based on the above, the application provides a light leakage detection method and device for a micro LED panel, electronic equipment and medium. The brightness detection image sent by the acquisition equipment can be received firstly, then the brightness of the brightness detection image is adjusted based on the relative position of the acquisition equipment and each lamp bead on the miniature LED panel, and the target brightness image is determined. And carrying out gray processing on the target brightness image, and determining a target brightness gray scale image corresponding to the target brightness image. And then analyzing the target brightness gray level map, determining brightness distribution information, and dividing the target brightness gray level map into a plurality of brightness distribution areas according to the brightness distribution information. According to the brightness distribution information, a plurality of brightness distribution areas and a preset brightness threshold value, determining the area average brightness of each brightness distribution area to determine an abnormal brightness distribution area, wherein the area average brightness of the abnormal brightness distribution area is the abnormal average brightness.
Fig. 1 is a schematic view of an application scenario provided in the present application. One surface of the micro LED panel can be provided with a plurality of micro LED lamp beads, the surface can be called as a front surface, the other surface can be provided with acquisition equipment and a light leakage analysis chip, and the surface can be called as a back surface. In the application scenario of fig. 1, the light leakage detection method of the micro LED panel may be built on the light leakage analysis chip, and the shooting range of the acquisition device may include the entire micro LED panel. The light leakage analysis chip can receive the brightness detection image sent by the acquisition equipment, and then process and analyze the brightness detection image to determine whether light leakage exists in the micro LED panel.
Reference may be made to the following examples for specific implementation.
Fig. 2 is a flowchart of a light leakage detection method of a micro LED panel according to an embodiment of the present application, where the method of the present embodiment may be applied to a light leakage analysis chip in the above scenario. As shown in fig. 2, the method includes:
s201, receiving a brightness detection image sent by the acquisition equipment, and adjusting the brightness of the brightness detection image based on the relative positions of the acquisition equipment and each lamp bead on the miniature LED panel to determine a target brightness image.
The structure of miniature LED panel can refer to the structure schematic diagram of miniature LED panel as shown in FIG. 3, and a plurality of miniature LED lamp pearls can be closely set up in the front of PCB, then set up transparent bottom plate in the reverse side, set up acquisition device on transparent bottom plate, the one side that acquisition device meets with PCB can be provided with the safety cover, reduce the influence that a plurality of miniature LED lamp pearls bring to acquisition device at work that shines and generates heat. The acquisition equipment can be arranged at the center of the miniature LED panel, and each lamp bead can correspond to the position coordinate under the same coordinate system based on the position of the acquisition equipment, so that the relative position of the acquisition equipment and the lamp beads can be determined.
It should be noted that the number of the substrates, tiny LED lamp beads and lamp beads in the application are the same.
The acquisition device can be a miniature image acquisition device and a miniature temperature acquisition device or a miniature image acquisition device with a temperature acquisition function. The acquisition equipment can shoot the luminous image of a plurality of lamp pearls on the whole miniature LED panel, can also gather temperature distribution image. The acquisition device acquires an image of the lighting condition of the lamp beads and can be used as a brightness detection image. The acquisition device can shoot the miniature LED panel according to a preset shooting frequency when the miniature LED panel emits light, and the shooting frequency can be set according to historical use data of a display corresponding to the miniature LED panel used by a user.
The light leakage analysis chip can be connected with a light leakage detection total server of a manufacturer. The light leakage detection total server can pre-establish an image correction model to be trained, extract brightness detection images of the historical micro LED panels, relative positions of the acquisition equipment and each lamp bead and picture brightness adjustment modes of the lamp beads on the corresponding micro LED panels from data generated by historical light leakage detection of various micro LED panels, and construct a training set. And forming a training sample from the brightness detection image of the historical miniature LED panel in training and the relative positions of the acquisition equipment and each lamp bead, and inputting the training sample into an image correction model to be trained to obtain an output result, namely a picture brightness adjustment mode of the lamp beads on the miniature LED panel. According to the training obtained picture brightness adjustment mode of the lamp beads on the miniature LED panel and the training set practically corresponding picture brightness adjustment mode of the lamp beads on the miniature LED panel, calculating a loss function, and adjusting model parameters of an image correction model to be trained by using a gradient descent method so as to reduce the loss function, and stopping training until the loss function is not reduced, so that the image correction model is obtained.
Specifically, the collection device can shoot the micro LED panel, generate a brightness detection image and send the brightness detection image to the light leakage analysis chip, the light leakage analysis chip can correspondingly receive the brightness detection image and the relative position of the collection device and each lamp bead on the micro LED panel, the image correction model can be input, the picture brightness adjustment mode of each lamp bead on the micro LED panel is output, and based on the picture brightness adjustment mode, adjustment is correspondingly performed, so that a target brightness image is obtained.
S202, carrying out gray scale processing on the target brightness image, and determining a target brightness gray scale image corresponding to the target brightness image.
The target brightness gray scale map is an image obtained by performing gray scale processing on the target brightness image. In calculating the gray value, the values of the three red, green and blue channels of the pixel are generally limited to the range of 0 to 255, ensuring that the calculation result is between 0 and 255. Each pixel in the gray-scale image is a single-channel pixel, and has only one gray-scale value, so that the gray-scale image can be used for representing a black-and-white image or an image processing task requiring only brightness information. Wherein the gray value represents the luminance information of the pixel. When the brightness is higher, the gray value is larger, and the color on the image is whiter; when the brightness is low, the gray value is high, and the color on the image is black.
Specifically, the formula may be utilized: gray value= 0.2989 ×red channel value+ 0.5870 ×green channel value+ 0.1140 ×blue channel value, and gray processing is performed on the target luminance image. For each pixel in the target brightness image, multiplying the values of the red, green and blue channels by corresponding weights, and adding the weights to obtain a final gray value. Based on which the target luminance image can be converted into a target luminance grayscale image.
S203, analyzing the target brightness gray level map, determining brightness distribution information, and dividing the target brightness gray level map into a plurality of brightness distribution areas according to the brightness distribution information.
The luminance distribution information may include distribution information of luminance values, coordinate information of lamp beads corresponding to the luminance values, and the like. The gray values in the luminance distribution area are relatively close, a gray threshold value may be preset, and the difference between the gray values of adjacent pixels is less than or equal to the gray threshold value may be calculated as the close. Adjacent pixels having a gradation value close to each other may be divided into a region, which may be a luminance distribution region.
Specifically, image analysis can be performed on the target brightness distribution diagram, a plurality of pixels corresponding to each lamp bead are determined, and brightness distribution information such as corresponding brightness values is further determined. And dividing adjacent pixels with relatively close gray values into the same region based on the brightness distribution information, and finally dividing the pixels into a plurality of brightness distribution regions.
S204, determining abnormal average brightness of each brightness distribution area according to the brightness distribution information and the brightness distribution areas, and determining the abnormal brightness distribution area based on the abnormal average brightness and a preset brightness threshold.
The luminance distribution information may include gray information of each luminance distribution area, and specifically may include gray values of a plurality of pixels corresponding to each lamp bead and luminance values corresponding to the gray values. The area average luminance may be an average luminance value of a corresponding luminance distribution area, and the area average luminance of the abnormal luminance distribution area is an abnormal average luminance. The preset luminance threshold value may be used to determine whether the luminance distribution region is an abnormal luminance distribution region, and when the region average luminance of a certain abnormal luminance distribution region is greater than or equal to the preset luminance threshold value, the luminance distribution region may be determined to be an abnormal luminance distribution region. The presence of the abnormal brightness distribution region may indicate the presence of light leakage on the micro LED panel.
Specifically, the luminance distribution information of each luminance distribution area can be searched in the luminance distribution information, a plurality of corresponding luminance values are extracted from the luminance distribution information, and the luminance values are averaged to obtain the area average luminance of each luminance distribution area. The average brightness of the area can be compared with a preset brightness threshold value, the abnormal average brightness is determined, and the abnormal brightness distribution area is correspondingly determined.
In this embodiment, since the distance between the collection device and the lamp beads is different, a certain brightness loss may be caused, and thus the brightness corresponding to the brightness detection image may not be accurate. The brightness detection image can be adjusted based on the relative positions of the acquisition equipment and each lamp bead on the miniature LED panel, and the real luminous condition is restored. And carrying out gray scale processing on the adjusted target brightness image, converting the color image into a gray scale image so as to further process and analyze the brightness distribution information of the target, further carrying out region division on the target brightness gray scale image, carrying out careful analysis on each brightness distribution region to obtain abnormal average brightness, determining that light leakage exists in the micro LED panel, and improving the detection accuracy of light leakage in the micro range of the micro LED panel.
In some embodiments, the image brightness adjustment includes pixel compensation; the relative position can be used for determining the light propagation path of the lamp beads, further determining the corresponding light intensity loss, and performing pixel compensation on the brightness detection image based on the light intensity loss, so as to determine the target brightness image. Specifically, determining a light propagation path corresponding to each lamp bead based on the relative positions of the acquisition equipment and each lamp bead on the miniature LED panel; acquiring light intensity loss corresponding to a light propagation path; and carrying out pixel compensation on the brightness detection image according to the light intensity loss, and determining a target brightness image.
Because not only install lamp pearl etc. on miniature LED panel's the PCB, still probably have the pin of some chips, therefore the luminous condition of lamp pearl not only receives the influence of distance, can also receive the loss that the shielding dispersion of pin etc. LED to. The corresponding relations between the light propagation paths from the lamp beads at different positions to the acquisition equipment, the different optical fiber propagation paths and the light intensity loss can be preset on different miniature LED panels, and the corresponding relations can be experimentally determined according to historical light propagation data.
Specifically, the light propagation path corresponding to each lamp bead can be searched and determined according to the relative positions of the acquisition equipment and each lamp bead on the miniature LED panel, and then the corresponding light intensity loss is obtained in a matching mode. And carrying out pixel compensation on the pixels of the corresponding lamp beads on the brightness detection image based on the lost light intensity to obtain a target brightness image.
According to the embodiment, the relative positions of the acquisition equipment and each lamp bead on the miniature LED panel are considered, so that the light propagation path corresponding to each lamp bead is determined, and the positions of each lamp bead and the distance from the acquisition equipment are considered, so that the brightness of an image is adjusted more accurately. And then correspondingly acquiring the light intensity loss corresponding to the light propagation path, and considering the possible loss of light in the propagation process, thereby more accurately adjusting the brightness of the image. Pixel compensation is performed on the luminance detection image according to the light intensity loss, and the pixels of the image can be adjusted according to the light intensity loss, thereby determining the target luminance image more accurately. The whole device can restore the real luminous condition more accurately, and determine the brightness distribution condition more carefully so as to identify the abnormal brightness distribution area more accurately, thereby improving the accuracy and the detection effect of light leakage detection of the micro LED panel more effectively.
In some embodiments, the average luminance region and the preset luminance threshold may be used to determine whether the luminance of the luminance distribution region is abnormal luminance. If the abnormal brightness is further analyzed, the abnormal characteristics of the abnormal brightness are determined, and when the abnormal characteristics are local brightness abnormality, the brightness area is determined to be an abnormal brightness distribution area. Specifically, for each brightness distribution area, determining whether the brightness of the brightness distribution area is abnormal brightness according to the average brightness of the area corresponding to the brightness distribution area and a preset brightness threshold; if the brightness of the brightness distribution area is abnormal brightness, analyzing the brightness distribution area to determine a plurality of sub brightness distribution information; analyzing the distribution information of a plurality of sub-brightnesses, and determining abnormal characteristics of abnormal brightness, wherein the abnormal characteristics comprise local brightness abnormality and continuous brightness abnormality; if the abnormal characteristic of the abnormal brightness is abnormal local brightness, determining the brightness distribution area as an abnormal brightness distribution area.
The preset brightness threshold may include the light leakage threshold as referred to in the above embodiment, and may further include a light bead dim value. The area average luminance may be an average value of gray values of a plurality of pixels corresponding to a plurality of lamp beads within the luminance distribution area referred to in the above embodiment. When the area average luminance is greater than or equal to the light leakage threshold value/the area average luminance is less than or equal to the lamp bead dim value, the luminance of the area corresponding to the luminance distribution can be determined as abnormal luminance, and at this time, the lamp bead light leakage may occur, and the lamp bead dim and the lamp bead large-area highlight may also occur. When the brightness is abnormal, the brightness distribution area can be further finely divided to obtain a plurality of sub-brightness areas, and the gray values in the areas are more similar. The relationship between the sub-luminance distribution information and the sub-luminance region may be equal to the relationship between the luminance distribution information and the luminance distribution region in the above-described embodiment, and the sub-luminance distribution information may also include a pixel value corresponding to the lamp bead in the corresponding sub-luminance region, a corresponding gradation value, and the like.
When light leakage occurs, the single lamp bead is abnormal in most cases, so that the light leakage on the miniature LED panel is local and corresponds to local brightness abnormality. When the lamp beads are used for too long, the circuit is problematic, and the current is too large, the lamp beads are usually abnormal in a part connected with the lamp beads, and the lamp beads can be dimmed or highlighted in a large area and continuously on the miniature LED panel.
Specifically, for each brightness distribution area, the average brightness of the area can be compared with a preset brightness threshold value, and whether the brightness of the brightness distribution area is abnormal brightness or not can be determined. If the brightness is abnormal, the brightness distribution area is analyzed to determine a plurality of pieces of sub-brightness distribution information. And analyzing a plurality of self-brightness distribution information to determine the concentration condition of abnormal brightness and further obtain abnormal characteristics. When the abnormal characteristic is local luminance abnormality, the luminance distribution region is determined to be an abnormal luminance distribution region.
In some implementations, if the abnormality is a consistent luminance abnormality, the light bead may be further analyzed as being either bright or dim, and corresponding feedback may be performed.
According to the embodiment, for each brightness distribution area, whether the brightness of the area is abnormal brightness or not is determined according to the average brightness of the corresponding area and the preset brightness threshold value, so that the distribution area with abnormal brightness can be rapidly and effectively detected, and the accuracy of light leakage detection is improved. If the brightness of a certain brightness distribution area is determined to be abnormal brightness, the area is analyzed to determine a plurality of sub-brightness distribution information thereof, and the reason for the abnormal brightness is further analyzed to provide reference for subsequent repair and improvement. According to the sub-brightness distribution information, abnormal characteristics of abnormal brightness, including local brightness abnormality and continuous brightness abnormality, can be analyzed, the expression form of the brightness abnormality can be carefully researched, and accurate guidance is provided for repairing and improving. If the abnormal characteristic of the abnormal brightness is local brightness abnormality, the brightness distribution area can be determined to be the abnormal brightness distribution area, and the area with local brightness abnormality can be accurately identified, so that the accuracy and the detection effect of light leakage detection are effectively improved.
In some embodiments, the light leakage influence range of the lamp beads can be determined according to the light emitting property and the using time of the lamp beads, and then the abnormal brightness distribution area is adjusted to determine the light leakage lamp beads. Specifically, the luminous attribute and the using time of the lamp beads on the miniature LED panel are obtained; determining the light leakage influence range of the lamp beads according to the light emitting attribute and the using time length; based on the light leakage influence range, the abnormal brightness distribution area is adjusted, the target brightness analysis area is determined, the target brightness analysis area is analyzed, and the light leakage lamp beads are determined.
The light emitting attribute can be used for representing the corresponding light emitting brightness, light emitting range, light leakage influence range and the like of the lamp beads under different using time periods. The light leakage influence range can be used for representing the range of the light beads contained in the area which can be influenced between the largest light leakage condition and the smallest light leakage condition of the light beads, namely the range of the light beads contained in the area where the leaked light can cause abnormal brightness. The micro LED panel is installed into the display, the time of starting use can be recorded by the leakage analysis chip, and the period of time between the current time and the time can be used as the time of use. The light emitting properties of the beads can be experimentally determined when manufacturing micro LED panels. The target luminance analysis region may be used to represent a region where light leaking beads exist.
Specifically, the light emitting attribute and the use duration of the lamp beads on the micro LED panel stored in advance can be obtained. And then, based on the using time length, determining a corresponding light leakage influence range in the light emitting attribute. Because the abnormal brightness distribution area only represents the brightness abnormality of the area, and the light leakage lamp beads are not necessarily shown in the area, the abnormal brightness distribution area can be adjusted by combining the light leakage influence range, and the target brightness analysis area is determined, so that the target brightness analysis area is further analyzed, and the light leakage lamp beads are determined.
According to the embodiment, the luminous attribute and the use time length of the lamp beads on the miniature LED panel are obtained, and the influence range of light leakage is determined more accurately by considering the characteristics and the use condition of the lamp beads. And then the light leakage influence range of the lamp beads is determined according to the light emitting attribute and the using time length, and the characteristics and the using condition of the lamp beads can be considered, so that the light leakage position can be more accurately determined. And adjusting the abnormal brightness distribution area based on the light leakage influence range, determining a target brightness analysis area, and more accurately determining the area to be analyzed, thereby more effectively determining the light leakage lamp beads.
In some embodiments, it may be determined whether a light leakage offset region exists in combination with the coordinate data of the lamp beads, and if so, the light leakage offset region is determined as a target luminance analysis region. Specifically, based on the relative positions of the acquisition equipment and each lamp bead on the miniature LED panel, determining coordinate data corresponding to each lamp bead; determining whether a light leakage offset region exists according to the abnormal brightness distribution regions, the coordinate data corresponding to the abnormal brightness distribution regions, the light leakage influence range of the lamp beads and the abnormal region distance threshold; if the light leakage offset region exists, the light leakage offset region is determined as a target brightness analysis region.
The acquisition device can be arranged at the center of the miniature LED panel, and each lamp bead can correspond to the position coordinate under the same coordinate system based on the position of the acquisition device. Certain problems may exist in the non-abnormal brightness distribution area on the micro LED panel, if the light of a certain brightness distribution area is dim, and light leakage exists in the area adjacent to the brightness distribution area, the dim light may be supplemented, so that the non-abnormal brightness distribution area is detected. The abnormal brightness distribution areas can be preset according to the specific arrangement mode of the lamp beads on the micro LED panel and the light leakage influence range of the lamp beads, when the distance between the two nearest abnormal brightness distribution areas is smaller than or equal to the abnormal area distance threshold value, the two abnormal brightness distribution areas can be indicated to be possibly influenced by other target brightness analysis areas, at the moment, the coordinate data of the lamp beads and the light leakage influence range of the lamp beads are combined to determine which area possibly still generates light leakage but is not found, and the area is determined to be the light leakage counteracting area. The target luminance analysis region obtained in the above embodiment is not unique, and the light leakage cancellation region may be used as a newly added target luminance analysis region for subsequent analysis.
Specifically, the coordinate data corresponding to each bead can be determined according to the relative positions of the acquisition device and each bead on the micro LED panel. And then, the light leakage offset region can be obtained by pre-establishing a light leakage offset region determining model, and inputting a plurality of abnormal brightness distribution regions, a plurality of coordinate data corresponding to the abnormal brightness distribution regions, the light leakage influence range of the lamp beads and the abnormal region distance threshold value into the light leakage offset region determining model. The light leakage cancellation region may then be determined as a target luminance analysis region to facilitate supplemental analysis of the light leakage beads.
The embodiment determines the coordinate data corresponding to each lamp bead, can accurately determine the position of each lamp bead, and provides basic data for subsequent light leakage offset analysis. And then according to the abnormal brightness distribution areas and the coordinate data, determining the light leakage influence range of the lamp beads, accurately determining the light leakage influence range of each lamp bead, and providing a reference for subsequent light leakage offset analysis. Then, by determining whether the light leakage offset region exists or not through the light leakage influence range and the abnormal region distance threshold value, a plurality of factors can be considered, and therefore the light leakage offset region can be determined more accurately. If the light leakage offset region exists, the light leakage offset region is determined as a target brightness analysis region, and the region to be analyzed is more accurately determined, so that the light leakage lamp beads are more effectively determined. The omission of light leakage problem is avoided, and meanwhile, the accuracy and the effect of light leakage detection and repair of the miniature LED panel are improved.
Fig. 4 is a schematic structural diagram of a light leakage detection device of a micro LED panel according to an embodiment of the present application, and as shown in fig. 4, a light leakage detection device 400 of a micro LED panel according to the embodiment includes: a target luminance image determination module 401, a target luminance gradation map determination module 402, a luminance distribution area division module 403, and an abnormal luminance distribution area determination module 404.
The target brightness image determining module 401 is configured to receive a brightness detection image sent by the collecting device, and perform image brightness adjustment on the brightness detection image based on the relative positions of the collecting device and each bead on the micro LED panel, so as to determine a target brightness image;
the target brightness gray scale map determining module 402 is configured to perform gray scale processing on the target brightness image, and determine a target brightness gray scale map corresponding to the target brightness image;
the luminance distribution area dividing module 403 is configured to analyze the target luminance grayscale image, determine luminance distribution information, and divide the target luminance grayscale image into a plurality of luminance distribution areas according to the luminance distribution information;
the abnormal luminance distribution area determining module 404 is configured to determine an abnormal average luminance of each luminance distribution area according to the luminance distribution information and the plurality of luminance distribution areas, so as to determine an abnormal luminance distribution area based on the abnormal average luminance and a preset luminance threshold, where the area average luminance of the abnormal luminance distribution area is the abnormal average luminance.
Optionally, the image brightness adjustment includes pixel compensation; the target luminance image determining module 401 is specifically configured to:
determining a light propagation path corresponding to each lamp bead based on the relative positions of the acquisition equipment and each lamp bead on the miniature LED panel;
acquiring light intensity loss corresponding to a light propagation path;
and carrying out pixel compensation on the brightness detection image according to the light intensity loss, and determining a target brightness image.
Optionally, the abnormal brightness distribution area determining module 404 is specifically configured to:
for each brightness distribution area, determining whether the brightness of the brightness distribution area is abnormal brightness according to the average brightness of the area corresponding to the brightness distribution area and a preset brightness threshold;
if the brightness of the brightness distribution area is abnormal brightness, analyzing the brightness distribution area to determine a plurality of sub brightness distribution information;
analyzing the distribution information of a plurality of sub-brightnesses, and determining abnormal characteristics of abnormal brightness, wherein the abnormal characteristics comprise local brightness abnormality and continuous brightness abnormality;
if the abnormal characteristic of the abnormal brightness is abnormal local brightness, determining the brightness distribution area as an abnormal brightness distribution area.
Optionally, the light leakage detection device 400 of the micro LED panel further includes a target brightness analysis region determining module 405, configured to:
Acquiring the luminous attribute and the use time of the lamp beads on the micro LED panel;
determining the light leakage influence range of the lamp beads according to the light emitting attribute and the using time length;
based on the light leakage influence range, the abnormal brightness distribution area is adjusted, the target brightness analysis area is determined, the target brightness analysis area is analyzed, and the light leakage lamp beads are determined.
Optionally, the light leakage detection device 400 of the micro LED panel further includes a light leakage cancellation area determining module 406, configured to:
determining coordinate data corresponding to each lamp bead based on the relative positions of the acquisition equipment and each lamp bead on the miniature LED panel;
determining whether a light leakage offset region exists according to the abnormal brightness distribution regions, the coordinate data corresponding to the abnormal brightness distribution regions, the light leakage influence range of the lamp beads and the abnormal region distance threshold;
if the light leakage offset region exists, the light leakage offset region is determined as a target brightness analysis region.
The apparatus of this embodiment may be used to perform the method of any of the foregoing embodiments, and its implementation principle and technical effects are similar, and will not be described herein again.
Fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application, as shown in fig. 5, an electronic device 500 according to the embodiment may include: a memory 501 and a processor 502.
The memory 501 has stored thereon a computer program that can be loaded by the processor 502 and that performs the methods of the embodiments described above.
Wherein the processor 502 is coupled to the memory 501, such as via a bus.
Optionally, the electronic device 500 may also include a transceiver. It should be noted that, in practical applications, the transceiver is not limited to one, and the structure of the electronic device 500 is not limited to the embodiment of the present application.
The processor 502 may be a CPU (Central Processing Unit ), general purpose processor, DSP (Digital Signal Processor, data signal processor), ASIC (Application Specific Integrated Circuit ), FPGA (Field Programmable Gate Array, field programmable gate array) or other programmable logic device, transistor logic device, hardware components, or any combination thereof. Which may implement or perform the various exemplary logic blocks, modules, and circuits described in connection with this disclosure. The processor 502 may also be a combination of computing functions, e.g., comprising one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.
A bus may include a path that communicates information between the components. The bus may be a PCI (Peripheral Component Interconnect, peripheral component interconnect standard) bus or an EISA (Extended Industry Standard Architecture ) bus, or the like. The buses may be divided into address buses, data buses, control buses, etc. For ease of illustration, the figures are shown with only one bold line, but not with only one bus or one type of bus.
The Memory 501 may be, but is not limited to, ROM (Read Only Memory) or other type of static storage device that can store static information and instructions, RAM (Random Access Memory ) or other type of dynamic storage device that can store information and instructions, EEPROM (Electrically Erasable Programmable Read Only Memory ), CD-ROM (Compact Disc Read Only Memory, compact disc Read Only Memory) or other optical disk storage, optical disk storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
The memory 501 is used to store application code for executing the present application and is controlled by the processor 502 for execution. The processor 502 is configured to execute the application code stored in the memory 501 to implement what is shown in the foregoing method embodiments.
Among them, electronic devices include, but are not limited to: mobile terminals such as mobile phones, notebook computers, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and the like, and stationary terminals such as digital TVs, desktop computers, and the like. But may also be a server or the like. The electronic device shown in fig. 5 is only an example and should not impose any limitation on the functionality and scope of use of the embodiments of the present application.
The electronic device of the present embodiment may be used to execute the method of any of the foregoing embodiments, and its implementation principle and technical effects are similar, and will not be described herein.
The present application also provides a computer-readable storage medium storing a computer program capable of being loaded by a processor and executing the method in the above embodiments.
Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the method embodiments described above may be performed by hardware associated with program instructions. The foregoing program may be stored in a computer readable storage medium. The program, when executed, performs steps including the method embodiments described above; and the aforementioned storage medium includes: various media that can store program code, such as ROM, RAM, magnetic or optical disks.
Claims (10)
1. The light leakage detection method of the miniature LED panel is characterized by comprising the following steps of:
receiving a brightness detection image sent by acquisition equipment, and adjusting the brightness of the brightness detection image based on the relative position of the acquisition equipment and each lamp bead on a miniature LED panel to determine a target brightness image;
carrying out gray scale processing on the target brightness image, and determining a target brightness gray scale image corresponding to the target brightness image;
Analyzing the target brightness gray level map, determining brightness distribution information, and dividing the target brightness gray level map into a plurality of brightness distribution areas according to the brightness distribution information;
and determining abnormal average brightness of each brightness distribution area according to the brightness distribution information and the brightness distribution areas so as to determine the abnormal brightness distribution area based on the abnormal average brightness and a preset brightness threshold.
2. The method for detecting light leakage of a micro LED panel according to claim 1, wherein the image brightness adjustment includes pixel compensation; based on the relative position of the acquisition device and each bead on the micro LED panel, performing image brightness adjustment on the brightness detection image, and determining a target brightness image, including:
determining a light propagation path corresponding to each lamp bead based on the relative positions of the acquisition equipment and each lamp bead on the miniature LED panel;
acquiring the light intensity loss corresponding to the light propagation path;
and carrying out pixel compensation on the brightness detection image according to the light intensity loss, and determining a target brightness image.
3. The method of claim 1, wherein determining an abnormal brightness distribution region based on the abnormal average brightness and a preset brightness threshold comprises:
For each brightness distribution area, determining whether the brightness of the brightness distribution area is abnormal brightness according to the average brightness of the area corresponding to the brightness distribution area and a preset brightness threshold;
if the brightness of the brightness distribution area is abnormal brightness, analyzing the brightness distribution area to determine a plurality of sub brightness distribution information;
analyzing the sub-brightness distribution information to determine abnormal characteristics of the abnormal brightness, wherein the abnormal characteristics comprise local brightness abnormality and continuous brightness abnormality;
and if the abnormal characteristic of the abnormal brightness is local brightness abnormality, determining the brightness distribution area as an abnormal brightness distribution area.
4. The method for detecting light leakage of a micro LED panel according to any one of claims 1 to 3, further comprising:
acquiring the luminous attribute and the service time of the lamp beads on the miniature LED panel;
determining the light leakage influence range of the lamp beads according to the luminous attribute and the using time length;
and adjusting the abnormal brightness distribution area based on the light leakage influence range to determine a target brightness analysis area so as to analyze the target brightness analysis area and determine light leakage lamp beads.
5. The method for detecting light leakage of a micro LED panel according to claim 4, further comprising:
determining coordinate data corresponding to each lamp bead based on the relative positions of the acquisition equipment and each lamp bead on the miniature LED panel;
determining whether a light leakage offset region exists according to a plurality of abnormal brightness distribution regions, a plurality of coordinate data corresponding to the abnormal brightness distribution regions, a light leakage influence range of the lamp beads and an abnormal region distance threshold;
and if the light leakage offset region exists, determining the light leakage offset region as a target brightness analysis region.
6. The utility model provides a miniature LED panel's light leak detection device which characterized in that includes:
the target brightness image determining module is used for receiving the brightness detection image sent by the acquisition equipment, and adjusting the image brightness of the brightness detection image based on the relative position of the acquisition equipment and each lamp bead on the miniature LED panel to determine a target brightness image;
the target brightness gray level image determining module is used for carrying out gray level processing on the target brightness image and determining a target brightness gray level image corresponding to the target brightness image;
the brightness distribution area dividing module is used for analyzing the target brightness gray level image, determining brightness distribution information and dividing the target brightness gray level image into a plurality of brightness distribution areas according to the brightness distribution information;
The abnormal brightness distribution area determining module is used for determining abnormal average brightness of each brightness distribution area according to the brightness distribution information and the brightness distribution areas so as to determine the abnormal brightness distribution area based on the abnormal average brightness and a preset brightness threshold value, wherein the area average brightness of the abnormal brightness distribution area is the abnormal average brightness.
7. The micro LED panel light leakage detection device according to claim 6, wherein the image brightness adjustment comprises pixel compensation; the target brightness image determining module is specifically configured to:
determining a light propagation path corresponding to each lamp bead based on the relative positions of the acquisition equipment and each lamp bead on the miniature LED panel;
acquiring the light intensity loss corresponding to the light propagation path;
and carrying out pixel compensation on the brightness detection image according to the light intensity loss, and determining a target brightness image.
8. The light leakage detection device of claim 6, wherein the abnormal brightness distribution area determination module is specifically configured to:
for each brightness distribution area, determining whether the brightness of the brightness distribution area is abnormal brightness according to the average brightness of the area corresponding to the brightness distribution area and a preset brightness threshold;
If the brightness of the brightness distribution area is abnormal brightness, analyzing the brightness distribution area to determine a plurality of sub brightness distribution information;
analyzing the sub-brightness distribution information to determine abnormal characteristics of the abnormal brightness, wherein the abnormal characteristics comprise local brightness abnormality and continuous brightness abnormality;
and if the abnormal characteristic of the abnormal brightness is local brightness abnormality, determining the brightness distribution area as an abnormal brightness distribution area.
9. An electronic device, comprising: a memory and a processor;
the memory is used for storing program instructions;
the processor is configured to call and execute program instructions in the memory to perform the light leakage detection method of the micro LED panel according to any one of claims 1 to 5.
10. A computer-readable storage medium, wherein the computer-readable storage medium has a computer program stored therein; the computer program, when executed by a processor, implements the light leakage detection method of a micro LED panel according to any one of claims 1 to 5.
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