Defect compensation method and device of display panel, electronic equipment and storage medium

Abstract

The application discloses a defect compensation method and device of a display panel, electronic equipment and a storage medium, and the method comprises the following steps: acquiring a plurality of light-emitting luminances of a plurality of light-emitting pixels in each pixel region of the display panel, wherein the pixel region comprises at least four light-emitting pixels; sorting the luminance values of the plurality of light-emitting luminances to obtain three main light-emitting luminances with larger luminance values and a supplementary light-emitting luminance with the smallest luminance value; performing defect correction on the three main light-emitting luminances to obtain three main light-emitting luminances after defect correction, and performing luminance compensation on the main light-emitting luminance with the smallest luminance value after defect correction based on the supplementary light-emitting luminance to obtain three target light-emitting luminances; re-sorting the luminance values of the three target light-emitting luminances, and performing white balance correction on the three target light-emitting luminances based on the minimum value of the target light-emitting luminances to obtain the white light output luminance of the pixel region; and maximizing the three target light-emitting luminances as much as possible to increase the white light output luminance.

Description

Technical Field

[0001] This invention relates to the field of semiconductor display technology, and more specifically to a method, apparatus, electronic device, and storage medium for defect compensation of a display panel. Background Technology

[0002] Mura refers to a defect in brightness or color uniformity on a screen. The Mura phenomenon causes inconsistencies in brightness or color on the screen, affecting the user's visual experience and reducing viewing comfort. Severe Mura may interfere with the normal display function of the monitor, leading to unclear images or other quality problems. From device fabrication to mass transfer in the template, Mura defects are inevitably introduced into the chip. Mura defect compensation is a crucial step in controlling the quality of LED chips.

[0003] However, current Mura defect compensation methods typically rely on global brightness adjustment or local compensation with a fixed mode. In the process of defect compensation for display panels, there is a problem of color distortion caused by excessively low white light brightness output. Summary of the Invention

[0004] This invention provides a method, apparatus, electronic device, and storage medium for defect compensation of a display panel.

[0005] To address the aforementioned technical problems, the embodiments of the present invention provide the following technical solutions:

[0006] A method for compensating for defects in a display panel, comprising:

[0007] Obtain multiple luminance values ​​of multiple luminous pixels in each pixel region of the display panel, wherein the pixel region includes at least four luminous pixels;

[0008] The brightness values ​​of the multiple luminous brightness values ​​are sorted to obtain the three main luminous brightness values ​​with the largest brightness values ​​and the supplementary luminous brightness value with the smallest brightness value;

[0009] The three main luminous brightness values ​​are defect-corrected to obtain the three main luminous brightness values ​​after defect correction. Based on the supplementary luminous brightness, the main luminous brightness value with the smallest value after defect correction is supplemented to obtain the three target luminous brightness values.

[0010] The brightness values ​​of the three target luminance values ​​are reordered, and white balance correction is performed on the three target luminance values ​​based on the minimum target luminance value to obtain the white light output brightness of the pixel area.

[0011] Optionally, before acquiring the luminance of multiple luminous pixels in each pixel region of the display panel, the method further includes:

[0012] The luminescent pixels of the display panel are divided into regions based on preset rules to obtain the plurality of pixel regions;

[0013] The preset rules include at least one of the following: fixed area size division rules, fixed area shape division rules, area filtering rules requiring compensation, and other entered rules.

[0014] Optionally, the defect correction of the three main luminous brightnesses to obtain the three main luminous brightnesses after defect correction includes:

[0015] Obtain the defect correction range and target white light brightness;

[0016] The brightness of the three main light sources is subtracted from the brightness of the target white light to obtain multiple brightness difference values;

[0017] When the brightness difference is within the defect correction range, defect correction is performed on the main luminous brightness corresponding to the brightness difference to obtain the target main luminous brightness whose brightness value is equal to the target white light brightness.

[0018] When the brightness difference is greater than the defect correction range, the difference between the main luminous brightness corresponding to the brightness difference and the defect correction value is obtained to obtain the corrected main luminous brightness.

[0019] When the brightness difference is less than the defect correction range, the main luminous brightness corresponding to the brightness difference is summed with the defect correction value to obtain the corrected main luminous brightness.

[0020] Optionally, the process of supplementing the brightness of the primary luminous intensity with the smallest brightness value after defect correction based on the supplemented luminous intensity yields three target luminous intensities, including:

[0021] When the minimum brightness value of the main luminous emission after defect correction is less than the target white light brightness, the main luminous emission brightness is summed with the supplementary luminous emission brightness to obtain the supplementary luminous emission brightness sum.

[0022] When the supplementary luminance is less than the target white light luminance, the supplementary luminance is determined to be the target luminance, which is the main luminance.

[0023] When the supplementary luminance is not less than the target white light luminance, the target white light luminance is determined to be the target luminance of the main luminance.

[0024] Optionally, after supplementing the main luminous brightness with the minimum brightness value after defect correction based on the supplemented luminous brightness to obtain the target luminous brightness, the method further includes:

[0025] When the supplementary luminance is greater than the target white light luminance, the luminous pixel corresponding to the supplementary luminance is determined to be the first luminous pixel, and the luminous pixel corresponding to the main luminance with the smallest luminance value after defect correction is determined to be the second luminous pixel.

[0026] The illumination states of the first and second luminous pixels are adjusted according to a preset illumination rule;

[0027] The preset light emission rules include at least one of the following: adjusting the light emission state according to a preset ratio, adjusting the light emission state according to a primary light emission priority rule, adjusting the light emission state according to a supplementary light emission priority rule, and other input light emission rules.

[0028] Optionally, sorting the brightness values ​​of the plurality of luminance values ​​to obtain the three main luminance values ​​with larger brightness values ​​and the supplementary luminance value with the smallest brightness value includes:

[0029] When the pixel region includes five light-emitting pixels, the brightness values ​​of the plurality of light-emitting brightness values ​​are sorted to obtain three main light-emitting brightness values ​​with larger brightness values ​​and two supplementary light-emitting brightness values ​​with smaller brightness values.

[0030] Optionally, the process of supplementing the brightness of the primary luminous intensity with the smallest brightness value after defect correction based on the supplemented luminous intensity yields three target luminous intensities, including:

[0031] The primary luminous brightness with the smallest brightness value after defect correction is determined as the first primary luminous brightness, the primary luminous brightness with the second smallest brightness value after defect correction is determined as the second primary luminous brightness, the supplementary luminous brightness with the smallest brightness value is determined as the first supplementary luminous brightness, and the supplementary luminous brightness with the larger brightness value is determined as the second supplementary luminous brightness.

[0032] The first main luminous brightness is summed with the first supplementary luminous brightness and the second supplementary luminous brightness to obtain the first luminous brightness and the second luminous brightness;

[0033] The second main luminous intensity is summed with the first supplementary luminous intensity to obtain the third luminous intensity;

[0034] The two luminance values ​​with the larger values ​​among the first luminance, the second luminance, and the third luminance are determined as the target luminance.

[0035] A defect compensation device for a display panel, comprising:

[0036] A pixel region division module is used to divide the light-emitting pixels of the display panel into multiple pixel regions, wherein each pixel region includes at least four light-emitting pixels.

[0037] The luminance acquisition module is used to acquire the luminance of each luminous pixel and obtain multiple luminance values ​​for each pixel region;

[0038] The brightness sorting module is used to sort the brightness values ​​of the multiple luminous brightness values ​​to obtain the three main luminous brightness values ​​with larger brightness values ​​and the supplementary luminous brightness value with the smallest brightness value.

[0039] The brightness compensation module is used to perform defect correction on the three main luminous brightness values ​​to obtain the three main luminous brightness values ​​after defect correction, and to supplement the brightness of the main luminous brightness value with the smallest value after defect correction based on the supplementary luminous brightness to obtain three target luminous brightness values.

[0040] The brightness planning module is used to reorder the brightness values ​​of the three target luminous brightness values, and perform white balance correction on the three target luminous brightness values ​​based on the minimum target luminous brightness value to obtain the white light output brightness of the pixel area.

[0041] An electronic device includes a memory and a processor, the memory storing a computer program that, when executed by the processor, causes the processor to perform the following steps:

[0042] Obtain multiple luminance values ​​of multiple luminous pixels in each pixel region of the display panel, wherein the pixel region includes at least four luminous pixels;

[0043] The brightness values ​​of the multiple luminous brightness values ​​are sorted to obtain the three main luminous brightness values ​​with the largest brightness values ​​and the supplementary luminous brightness value with the smallest brightness value;

[0044] The three main luminous brightness values ​​are defect-corrected to obtain the three main luminous brightness values ​​after defect correction. Based on the supplementary luminous brightness, the main luminous brightness value with the smallest value after defect correction is supplemented to obtain the three target luminous brightness values.

[0045] The brightness values ​​of the three target luminance values ​​are reordered, and white balance correction is performed on the three target luminance values ​​based on the minimum target luminance value to obtain the white light output brightness of the pixel area.

[0046] A computer-readable storage medium having a computer program stored thereon, the computer program being loaded by a processor to perform the steps in the above-described method for defect compensation of a display panel.

[0047] In this embodiment of the invention, the targeted compensation of brightness is improved by specifically compensating the luminance of each pixel area of ​​the display panel; by performing defect correction on the three main luminance values, the correction capability of the display panel itself is prioritized to obtain the three main luminance values ​​after defect correction that are close to the target; then, based on the supplementary luminance value, the luminance value with the smallest brightness value after defect correction is supplemented to dynamically compensate for the insufficient brightness of the main pixels caused by defects, so that the three target luminance values ​​are maximized to increase the white light output; by reordering the brightness values ​​of the three target luminance values ​​and performing white balance correction on the three target luminance values ​​based on the minimum target luminance value, the white light output brightness of the pixel area is obtained, which not only enables the output of the maximum white light brightness, but also ensures the stability of the color temperature difference of the white light, thereby improving the color fidelity and color accuracy of the displayed image. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0049] Figure 1 This is a schematic diagram of a scenario of an embodiment of the defect compensation system for a display panel provided in this invention.

[0050] Figure 2 A schematic diagram of another embodiment of the defect compensation system for a display panel provided in this invention;

[0051] Figure 3 This is a flowchart illustrating an embodiment of the defect compensation method for a display panel provided by the present invention.

[0052] Figure 4 A schematic diagram of a scenario flow for an embodiment of the defect compensation method for a display panel provided in this invention;

[0053] Figure 5 A schematic diagram of a defect compensation device for a display panel provided in an embodiment of the present invention;

[0054] Figure 6 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0055] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0056] In the following description, specific embodiments of the invention will be illustrated with reference to steps and symbols performed by one or more computers, unless otherwise stated. Therefore, these steps and operations will be referred to several times as being performed by a computer, and computer execution as referred to herein includes operations by a computer processing unit representing electronic signals of data in a structured format. This operation transforms the data or maintains it at a location in the computer's memory system, which can be reconfigured or otherwise alter the operation of the computer in a manner well known to those skilled in the art. The data structure maintained by the data is the physical location of the memory, which has specific characteristics defined by the data format. However, the principles of the invention described above are not intended to be limiting, and those skilled in the art will understand that many of the steps and operations described below can also be implemented in hardware.

[0057] The terms "module" or "unit" as used herein can be considered as software objects executing on the computing system. The different components, modules, engines, and services described herein can be considered as implementation objects on the computing system. The apparatus and methods described herein are preferably implemented in software, but can also be implemented in hardware, both of which are within the scope of this invention.

[0058] Mura refers to a defect in brightness or color uniformity on a screen. The Mura phenomenon causes inconsistencies in brightness or color on the screen, affecting the user's visual experience and reducing viewing comfort. Severe Mura may interfere with the normal display function of the monitor, leading to unclear images or other quality problems. From device fabrication to mass transfer in the template, Mura defects are inevitably introduced into the chip. Mura defect compensation is a crucial step in controlling the quality of LED chips.

[0059] However, current Mura defect compensation methods typically rely on global brightness adjustment or local compensation with a fixed pattern. Different pixels emit light with significant differences under the same current, resulting in excessively low white light output. This leads to uneven brightness, which significantly affects image color and can even cause image distortion, making it difficult to meet the requirements of high resolution and high display quality.

[0060] Therefore, during the defect compensation process of a display panel, there is a problem of color distortion caused by excessively low white light brightness output. This invention provides a method, apparatus, electronic device, and storage medium for defect compensation of a display panel.

[0061] Please see Figure 1 , Figure 1 This is a schematic diagram of a scenario illustrating an embodiment of the display panel defect compensation system provided in this invention. The display panel defect compensation system may include a client 100 and a server 200, which are connected via a network. The server 200 integrates a display panel defect compensation device. The server 200 may be a work platform server (i.e., a server loaded with a work platform), such as... Figure 1 In this embodiment of the invention, the server 200 is mainly used to obtain multiple luminance values ​​of multiple luminous pixels in each pixel area of ​​the display panel, wherein the pixel area includes at least four luminous pixels; sort the luminance values ​​of the multiple luminance values ​​to obtain three main luminance values ​​with larger luminance values ​​and a supplementary luminance value with smaller luminance values; perform defect correction on the three main luminance values ​​to obtain three main luminance values ​​after defect correction, and supplement the luminance of the main luminance value with smaller luminance value after defect correction based on the supplementary luminance value to obtain three target luminance values; re-sort the luminance values ​​of the three target luminance values, and perform white balance correction on the three target luminance values ​​based on the minimum target luminance value to obtain the white light output luminance of the pixel area.

[0062] In this embodiment of the invention, the server 200 can be a standalone server, a server network, or a server cluster. For example, the server 200 described in this embodiment includes, but is not limited to, a computer, a network host, a single network server, a set of multiple network servers, or a cloud server composed of multiple servers. The cloud server is composed of a large number of computers or network servers based on cloud computing. In this embodiment, communication between the server and the client can be achieved through any communication method, including but not limited to, mobile communication based on the 3rd Generation Partnership Project (3GPP), Long Term Evolution (LTE), and Worldwide Interoperability for Microwave Access (WiMAX), or computer network communication based on the TCP / IP Protocol Suite (TCP / IP) and User Datagram Protocol (UDP).

[0063] It is understood that the client 100 used in this embodiment of the invention can be understood as a client device. A client device includes both receiving and transmitting hardware, that is, a device with receiving and transmitting hardware capable of performing bidirectional communication on a bidirectional communication link. Such a client device may include cellular or other communication devices, having a single-line display, a multi-line display, or a cellular or other communication device without a multi-line display. Specifically, the client 100 may be a desktop terminal or a mobile terminal, specifically a mobile phone, tablet computer, laptop computer, etc.

[0064] Those skilled in the art will understand that Figure 1 The application environment shown is merely one application scenario of the solution in this application and does not constitute a limitation on the application scenario of the solution in this application. Other application environments may include those that are more specific to this application. Figure 1 The number of more or fewer servers shown, or the server network connectivity relationships, for example... Figure 1 Only one server and two clients are shown in the diagram. It is understood that the defect compensation system of this display panel may also include one or more other servers, and / or one or more clients connected to the server network, which is not limited here.

[0065] In some embodiments of the present invention, the working platform may be an enterprise office platform, such as WeChat for Business. Taking server 200 as an example, it may further include an enterprise office platform contact server, an enterprise office platform configuration management server, and a web management server. Enterprise users or developers can access the web management server using a web browser terminal to configure the field configuration information on the enterprise office platform configuration management server, and set and store the enterprise user information of enterprise employees of the enterprise office platform on the enterprise office platform contact server.

[0066] In addition, such as Figure 2 As shown, Figure 2 This is a schematic diagram of another embodiment of the display panel defect compensation system provided in this invention. The display panel defect compensation system may further include a storage terminal 300 for storing data, such as a storage object database. The object database stores object data, which may include application templates (such as approval templates, attendance templates, and other application templates), file data (such as Word files, Excel files, or PPT files, and other files in various formats), image data (such as images in various formats such as JPG, PNG, and BMP), and other types of data. Correspondingly, the object database may also be divided into multiple types of data, such as an application database, a file database, or an image database.

[0067] It should be noted that, Figure 1-2 The schematic diagram of the display panel defect compensation system shown is merely an example. The display panel defect compensation system and scenarios described in the embodiments of the present invention are for the purpose of more clearly illustrating the technical solutions of the embodiments of the present invention, and do not constitute a limitation on the technical solutions provided by the embodiments of the present invention. As those skilled in the art will know, with the evolution of display panel defect compensation systems and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present invention are also applicable to similar technical problems.

[0068] The following detailed description is based on specific embodiments.

[0069] In this embodiment, the description will be from the perspective of a defect compensation device for the display panel, which can be integrated into the server 200.

[0070] This invention provides a method for defect compensation in a display panel. Please refer to [link / reference]. Figure 3 , Figure 3 A flowchart illustrating an embodiment of the defect compensation method for a display panel provided by this invention includes:

[0071] S301: Obtain the luminance of multiple luminous pixels in each pixel region of the display panel, wherein the pixel region includes at least four luminous pixels;

[0072] In one specific embodiment, the display panel is a core component in an electronic device used to convert electrical signals into visible images. Its performance directly determines key parameters of the display device, such as brightness, contrast, color performance, and viewing angle. Clearly, the display panel includes multiple light-emitting units, each of which is a light-emitting pixel. An array of multiple light-emitting pixels forms a regular display panel. By adjusting the color and brightness of the light emitted by each light-emitting pixel, the output of the entire display panel can be adjusted.

[0073] In addition, a pixel region specifically refers to the area where the light-emitting pixels are located, and the pixel region includes all the light-emitting pixels.

[0074] Luminous intensity is a core performance parameter of display devices (such as LED displays and LCD screens), referring to the intensity of visible light emitted per unit area per unit time, which directly affects the visibility, clarity, and visual comfort of the displayed content.

[0075] S302: Sort the brightness values ​​of multiple luminous brightness values ​​to obtain the three main luminous brightness values ​​with the largest brightness values ​​and the supplementary luminous brightness value with the smallest brightness value;

[0076] It should be noted that in this embodiment, each pixel area is described as including four light-emitting pixels.

[0077] The primary luminous intensity refers to the luminous intensity of monochromatic light of different colors. Since the display panel uses red, green, and blue (RGB) as its basis, this is the result of the combined effects of three factors: the physiological structure of the human eye, optical principles, and technological feasibility. Therefore, in order to ensure the independent integrity of the three primary colors, each pixel area needs to emit at least three colors of light, which corresponds to three primary luminous intensities: red light intensity, green light intensity, and blue light intensity.

[0078] The supplementary luminous brightness is because there may be a certain monochromatic light in the pixel area with too low luminous brightness, which will cause image distortion. Therefore, in order to avoid this problem, the luminous brightness of the light emitted by the redundant luminous pixels is specially set.

[0079] S303: Perform defect correction on the three main luminous brightness values ​​to obtain the three main luminous brightness values ​​after defect correction, and supplement the main luminous brightness value with the smallest value after defect correction based on the supplementary luminous brightness value to obtain the three target luminous brightness values.

[0080] Defect correction refers to the use of LUT (Look-Up Table) to adjust the driving current of the RGB three primary colors to achieve small-range, small-deviation brightness compensation.

[0081] Brightness supplementation refers to directly superimposing the supplemented luminous brightness with the main luminous brightness with the smallest brightness value after defect correction, thereby increasing the brightness value of the main luminous brightness with the smallest brightness value after defect correction.

[0082] S304: Reorder the brightness values ​​of the three target luminance values, and perform white balance correction on the three target luminance values ​​based on the minimum target luminance value to obtain the white light output brightness of the pixel area.

[0083] White balance correction refers to the technique of adjusting the output ratio of the three primary colors (red, green, and blue) to ensure that white is accurately reproduced as neutral white (without color cast) on the screen, and to achieve the true reproduction of other colors based on this. The core of white balance is "color calibration with white": only when a white object is displayed as pure white on the screen (R=G=B) can other colors be accurately reproduced. It should be noted that when the luminous brightness is higher than the ideal luminous brightness, the luminous brightness can be easily adjusted to the ideal luminous brightness by adjusting the output current of the luminous pixels; however, when the luminous brightness is lower than the ideal luminous brightness, it is not possible to directly adjust the luminous brightness to a higher value. That is, the luminous brightness is easy to decrease, but difficult to increase.

[0084] White light output brightness refers to the brightness value of standard white light output by the display panel. When the white light output brightness is low, there will be a problem of brightness attenuation, leading to problems such as brightness uniformity defects, reduced color gamut coverage, and increased motion blur. Therefore, it is necessary to make the white light output brightness reach the target value as much as possible.

[0085] In this embodiment of the invention, the targeted compensation of brightness is improved by specifically compensating the luminance of each pixel area of ​​the display panel; by performing defect correction on the three main luminance values, the correction capability of the display panel itself is prioritized to obtain the three main luminance values ​​after defect correction that are close to the target; then, based on the supplementary luminance value, the luminance value with the smallest brightness value after defect correction is supplemented to dynamically compensate for the insufficient brightness of the main pixels caused by defects, so that the three target luminance values ​​are maximized to increase the white light output; by reordering the brightness values ​​of the three target luminance values ​​and performing white balance correction on the three target luminance values ​​based on the minimum target luminance value, the white light output brightness of the pixel area is obtained, which not only enables the output of the maximum white light brightness, but also ensures the stability of the color temperature difference of the white light, thereby improving the color fidelity and color accuracy of the displayed image.

[0086] In one specific embodiment, in S301, before obtaining the multiple luminous brightness of multiple luminous pixels in each pixel region of the display panel, the method further includes: dividing the luminous pixels of the display panel into regions based on preset rules to obtain multiple pixel regions; the preset rules include at least one of the following: a division rule with fixed region size, a division rule with fixed region shape, a region filtering rule that requires compensation, and other entered rules.

[0087] It should be noted that the fixed area size division rule specifically refers to dividing the light-emitting pixels in the display panel according to the preset area size threshold to ensure that the physical area covered by each pixel area is basically the same.

[0088] The fixed area shape division rule refers to dividing the light-emitting pixels in the display panel according to the set area shape to ensure that the shape of the coverage area of ​​each pixel area is consistent.

[0089] The area selection rule for compensation refers to dividing the display panel into areas according to the compensation requirements of the display panel, ensuring that the areas in the display panel that need brightness compensation are all within the pixel area, and further subdividing the pixel area according to other rules, which may include: fixed area size division rules, fixed area shape division rules, pixel area continuity rules, etc.

[0090] Other rules that can be entered may include user-defined grouping preferences, such as targeted grouping based on features like the functional areas of the luminous pixels on the display panel or historical failure rates, which are not limited here.

[0091] In this embodiment, by integrating various partitioning logics such as fixed area size, fixed area shape, compensation requirement filtering, and custom rules, the display panel can be partitioned as needed for different application scenarios (such as display effect optimization, fault diagnosis, and functional partition management).

[0092] In one specific embodiment, in S303, defect correction is performed on the three main luminous brightness levels to obtain the three main luminous brightness levels after defect correction, including:

[0093] Obtain the defect correction range and target white light brightness;

[0094] The brightness of the three main light sources is subtracted from the brightness of the target white light, resulting in multiple brightness difference values;

[0095] When the brightness difference is within the defect correction range, perform defect correction on the main luminous brightness corresponding to the brightness difference to obtain the target main luminous brightness whose brightness value is equal to the target white light brightness.

[0096] When the brightness difference is greater than the defect correction range, the difference between the main luminous brightness corresponding to the brightness difference and the defect correction value is used to obtain the corrected main luminous brightness.

[0097] When the brightness difference is less than the defect correction range, the main luminous brightness corresponding to the brightness difference is summed with the defect correction value to obtain the corrected main luminous brightness.

[0098] It should be noted that the specific value of the defect correction range is determined based on the display panel type, process parameters, and target white balance requirements, and is directly related to the properties of the display panel.

[0099] The target white light brightness is the ideal brightness benchmark that needs to be achieved after defect correction. It guides the brightness adjustment direction of the main emitting pixels, and this parameter is directly related to the white balance performance of the display panel. Generally, the target white light brightness is set to 100.

[0100] In this embodiment, by directly correcting the brightness difference to the target white light brightness when it is within the defect correction range, a small brightness deviation (within the defect correction range) can be precisely adjusted to the target value, significantly reducing the gap between the actual brightness and the theoretical target, ensuring the output accuracy of the main luminous brightness, reducing systematic deviations, and guaranteeing accuracy. When the brightness difference is greater than or less than the defect correction range, the main luminous brightness is subtracted from or summed with the defect correction value, rather than being directly forced to be corrected to the target value, to prevent over-correction and control risks.

[0101] Furthermore, based on the supplementary luminance, the luminance of the main luminance with the smallest luminance value after defect correction is supplemented to obtain three target luminance values, including: when the main luminance with the smallest luminance value after defect correction is less than the target white light luminance, the main luminance is summed with the supplementary luminance to obtain the supplementary luminance sum; when the supplementary luminance sum is less than the target white light luminance, the supplementary luminance sum is determined as the target luminance of the main luminance; when the supplementary luminance sum is not less than the target white light luminance, the target white light luminance is determined as the target luminance of the main luminance.

[0102] In this embodiment, using the target white light brightness as a benchmark, the minimum brightness of the main luminous emission (if it is lower than the target white light brightness) after defect correction is effectively increased by adding supplementary luminous emission, thus solving the problem of potentially low local brightness after defect correction and ensuring targeted enhancement of the critical minimum brightness. When the sum of the supplemented brightness (main luminous emission brightness + supplementary luminous emission brightness) is not less than the target white light brightness, the target white light brightness is directly used as the final target luminous emission brightness, avoiding excessive supplementation that could cause the brightness to exceed the target value, preventing over-brightness, and ensuring the accuracy of brightness control. If the sum of the supplemented brightness is still less than the target white light brightness, then this sum is used as the target luminous emission brightness, and the low brightness is increased as close as possible to the target white light brightness without exceeding the target value. This ensures that the final target luminous emission brightness can both repair the brightness shortcomings after defect correction and strictly adhere to the constraints of the target white light brightness, ensuring the effectiveness and accuracy of the luminous emission brightness and meeting the requirements for target brightness in practical applications.

[0103] Furthermore, in order to optimize the luminous brightness of the light-emitting pixels and reduce the luminous pressure of some light-emitting pixels, after supplementing the main luminous brightness with the minimum brightness value after defect correction based on the supplemented luminous brightness to obtain the target luminous brightness, the process also includes:

[0104] When the supplementary luminance is greater than the target white light luminance, the luminous pixel corresponding to the supplementary luminance is determined as the first luminous pixel, and the luminous pixel corresponding to the main luminance with the smallest luminance value after defect correction is determined as the second luminous pixel.

[0105] The illumination states of the first and second luminous pixels are adjusted according to the preset illumination rules;

[0106] The preset light emission rules include at least one of the following: adjusting the light emission state according to a preset ratio, adjusting the light emission state according to a primary light emission priority rule, adjusting the light emission state according to a supplementary light emission priority rule, and other input light emission rules.

[0107] It should be noted that the preset ratio adjustment of the light emission state may include the brightness allocation ratio (such as the brightness weight allocation between the supplementary light source and the main light source, such as 3:7, or a dynamic ratio), the timing control ratio (controlling the light emission duration ratio of the two light sources through time division), and allocation according to the ratio of the target white light brightness to the sum of the supplementary light emission brightness, etc., which are not limited here.

[0108] The "Priority Illumination Rule" adjusts the illumination state by prioritizing the brightness output of the primary illuminating pixels during the brightness compensation process.

[0109] Adjusting the light emission state according to the supplementary priority light emission rule means prioritizing the brightness output of the supplementary light emission pixels during the brightness compensation process.

[0110] Other lighting rules that can be entered may include user-defined grouping preferences, such as targeted grouping based on features such as the functional areas of the luminous pixels of the display panel or historical failure rates, without limitation.

[0111] In this embodiment, by making targeted adjustments to the scenario of "supplemented luminous brightness being greater than the target white light brightness", and by accurately positioning the first luminous pixel (corresponding to the supplemented luminous brightness) and the second luminous pixel (corresponding to the minimum main brightness after defect correction), brightness deviation caused by excessive supplementation can be effectively avoided, ensuring that the overall luminous brightness is stable within the target value range, and improving the accuracy and uniformity of brightness output; avoiding the load concentration caused by excessive luminous emission of a single luminous pixel can significantly reduce the aging speed of luminous pixels and extend their service life.

[0112] In one specific embodiment, the pixel region may also include five or more light-emitting pixels. Then, sorting the brightness values ​​of multiple light-emitting brightness values ​​to obtain the three main light-emitting brightness values ​​with larger brightness values ​​and the supplementary light-emitting brightness values ​​with smaller brightness values ​​may also include: when the pixel region includes five light-emitting pixels, sorting the brightness values ​​of multiple light-emitting brightness values ​​to obtain the three main light-emitting brightness values ​​with larger brightness values ​​and the two supplementary light-emitting brightness values ​​with smaller brightness values.

[0113] That is, since the display panel is based on three primary colors, only three monochromatic lights are needed. Correspondingly, only three main light-emitting pixels are needed, with three main light-emitting brightness levels. The others are supplementary light-emitting brightness levels.

[0114] Furthermore, based on the supplementary luminance, the main luminance with the smallest luminance value after defect correction is supplemented to obtain three target luminance values, including: determining the main luminance with the smallest luminance value after defect correction as the first main luminance value, the main luminance with the second smallest luminance value after defect correction as the second main luminance value, the supplementary luminance with the smallest luminance value as the first supplementary luminance value, and the supplementary luminance with the largest luminance value as the second supplementary luminance value; summing the first main luminance value with the first supplementary luminance value and the second supplementary luminance value respectively to obtain the first luminance value and the second luminance value; summing the second main luminance value with the first supplementary luminance value to obtain the third luminance value; and determining the two luminance values ​​with the largest luminance values ​​among the first, second, and third luminance values ​​as target luminance values.

[0115] It should be noted that by using three combinations of "primary main power + small supplement", "primary main power + large supplement", and "secondary main power + small supplement", the system covers the scenarios of pairing low-brightness main power with different levels of supplementary brightness (e.g., the darkest main power is adapted to small / large supplement, and the second darkest main power is adapted to small supplement), ensuring that effective supplement solutions are provided for main power with different levels of insufficient brightness.

[0116] Since the final white light brightness of the display panel is determined based on the shortest board principle, the light-emitting pixel with the lowest brightness is supplemented each time. However, in order to avoid extreme cases and to maximize the brightness of the three main light-emitting pixels, the specific supplementation method needs to be adjusted. The specific supplementation method is not limited here.

[0117] In one specific embodiment, to intuitively demonstrate the brightness compensation process, it is assumed that the target white light brightness is 100 / 100 / 100 (where one or more 100s can be the sum of the brightness of multiple luminous pixels); while the actual measured blue light pixel brightness, i.e., the brightness of the luminous pixels, is 80 / 65 / 40 / 75, and the defect correction range is (-10, 10). Therefore, the three main luminous brightnesses are 80 / 65 / 75, all less than the target white light brightness of 100. Thus, by performing defect correction on the main luminous brightness, the three main luminous brightnesses are brought as close to 100 as possible, resulting in three main luminous brightnesses after defect correction of 90 / 70 / 100 / 100. 5 / 85, meaning no defect correction is performed on the luminous pixel with a brightness of 40; further, among the three main luminous brightness values ​​after defect correction, the smallest brightness value is 75. By directly superimposing the luminous pixel with a brightness of 75 onto the luminous pixel with a brightness of 40, the resulting luminous brightness is 115. Since the target white light brightness is 100, only the luminous pixel with a brightness of 40 needs to provide a portion of the luminous brightness with a brightness value of 25, so that the three target luminous brightness values ​​are 90 / 100 / 85, and the minimum target luminous brightness value is 85. Then, based on the luminous brightness of 85, white balance correction is performed on the three target luminous brightness values ​​to obtain a white light output brightness of 85 for the pixel area.

[0118] In this embodiment, by maximizing the brightness of the light-emitting pixels to be close to the target white light brightness, the white light output brightness of the pixel area can be as close to 100 as possible, thereby improving the white light brightness output of the pixel area and enhancing the color fidelity and color accuracy of the displayed image.

[0119] In another specific embodiment, based on the luminance values ​​of the luminous pixels being 80 / 65 / 40 / 75, it is also possible to first sum the minimum luminance value of the main luminous pixels, 65, with 40 to obtain a luminance sum of 115, based on the determination of the three main luminous pixels as 80 / 65 / 75. In this case, it is no longer necessary to perform defect correction on the main luminous pixel 65. When the number of luminous pixels includes five, six, or even more, the luminance data can be combined and superimposed through data combination calculation to try to obtain three luminance values ​​that are close to or exceed 100, thereby making the final white light output luminance as high as possible.

[0120] Please see Figure 4 , Figure 4 This is a schematic diagram of a scenario flow for an embodiment of the defect compensation method for a display panel provided by the present invention. After the blue Micro LED is fully illuminated, brightness information is captured by a high-resolution camera. That is, after all the light-emitting pixels of the display panel are illuminated, the brightness value of each light-emitting pixel is obtained by the high-resolution camera. Further, the light-emitting brightness in the display panel is grouped and calculated using a pixel arrangement algorithm to determine the light-emitting brightness value of each pixel area. Finally, the white light output brightness of the display panel is obtained through demura correction and white balance correction.

[0121] It should be noted that demura correction is defect correction, and the demura value is the boundary value of the defect correction range.

[0122] In summary, this embodiment effectively improves the brightness of the main luminous body after defect correction by targeted supplementation and screening optimization, ensuring that the target luminous body has a sufficient and stable brightness level.

[0123] To facilitate better implementation of the display panel defect compensation method provided in the embodiments of the present invention, the present invention also provides an apparatus based on the above-described display panel defect compensation method. The meanings of the terms used are the same as in the above-described display panel defect compensation method, and specific implementation details can be found in the descriptions in the method embodiments.

[0124] Please see Figure 5 , Figure 5 This is a schematic diagram of an embodiment of a defect compensation device for a display panel provided in this invention. The defect compensation device 500 for the display panel may include:

[0125] The luminance acquisition module 501 is used to acquire the luminance of multiple luminous pixels in each pixel area of ​​the display panel, wherein the pixel area includes at least four luminous pixels;

[0126] The brightness sorting module 502 is used to sort the brightness values ​​of multiple luminous brightness values ​​to obtain the three main luminous brightness values ​​with larger brightness values ​​and the supplementary luminous brightness value with the smallest brightness value.

[0127] The brightness compensation module 503 is used to perform defect correction on the three main luminous brightnesses to obtain the three main luminous brightnesses after defect correction, and to supplement the brightness of the main luminous brightness with the smallest brightness value after defect correction based on the supplementary luminous brightness to obtain three target luminous brightnesses.

[0128] The brightness planning module 504 is used to reorder the brightness values ​​of the three target luminous brightness values, and perform white balance correction on the three target luminous brightness values ​​based on the minimum value of the target luminous brightness to obtain the white light output brightness of the pixel area.

[0129] This invention also provides an electronic device, such as... Figure 6 As shown, Figure 6 This is a schematic diagram of the structure of an electronic device according to an embodiment of the present invention, specifically:

[0130] The electronic device may include components such as a processor 601 with one or more processing cores, a memory 602 with one or more computer-readable storage media, a power supply 603, and an input unit 604. Those skilled in the art will understand that... Figure 6 The electronic device structure shown does not constitute a limitation on the electronic device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0131] in:

[0132] The processor 601 is the control center of the electronic device. It connects various parts of the electronic device via various interfaces and lines. By running or executing software programs and / or modules stored in the memory 602, and by calling data stored in the memory 602, it performs various functions and processes data, thereby providing overall monitoring of the electronic device. Optionally, the processor 601 may include one or more processing cores; preferably, the processor 601 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operation of the storage medium, user interface, and application programs, while the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 601.

[0133] The memory 602 can be used to store software programs and modules. The processor 601 executes various functional applications and data processing by running the software programs and modules stored in the memory 602. The memory 602 may mainly include a program storage area and a data storage area. The program storage area may store applications required for operating the storage medium and at least one function (such as sound playback function, image playback function, etc.); the data storage area may store data created according to the use of the electronic device. In addition, the memory 602 may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory 602 may also include a memory controller to provide the processor 601 with access to the memory 602.

[0134] The electronic device also includes a power supply 603 that supplies power to various components. Preferably, the power supply 603 can be logically connected to the processor 601 via a power management storage medium, thereby enabling functions such as charging, discharging, and power consumption management through the power management storage medium. The power supply 603 may also include one or more DC or AC power supplies, recharge storage media, power fault detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0135] The electronic device may also include an input unit 604, which can be used to receive input digital or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

[0136] Although not shown, the electronic device may also include a display unit, etc., which will not be described in detail here. Specifically, in this embodiment, the processor 601 in the electronic device loads the executable files corresponding to the processes of one or more applications into the memory 602 according to the following instructions, and the processor 601 runs the applications stored in the memory 602 to realize various functions, as follows:

[0137] The process involves acquiring multiple luminance values ​​of multiple luminous pixels in each pixel region of the display panel, where each pixel region includes at least four luminous pixels; sorting the luminance values ​​to obtain three primary luminance values ​​with the largest luminance values ​​and a supplementary luminance value with the smallest luminance value; performing defect correction on the three primary luminance values ​​to obtain three defect-corrected primary luminance values; and supplementing the minimum luminance value of the primary luminance value after defect correction with the supplementary luminance value to obtain three target luminance values; re-sorting the luminance values ​​of the three target luminance values; and performing white balance correction on the three target luminance values ​​based on the minimum target luminance value to obtain the white light output luminance of the pixel region.

[0138] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by instructions, or by instructions controlling related hardware. These instructions can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0139] Therefore, embodiments of the present invention provide a computer-readable storage medium storing a computer program thereon, the computer program being loaded by a processor to execute steps in any of the defect compensation methods for display panels provided in the embodiments of the present invention. For example, the computer program, when loaded by a processor, can execute the following steps:

[0140] The process involves acquiring multiple luminance values ​​of multiple luminous pixels in each pixel region of the display panel, where each pixel region includes at least four luminous pixels; sorting the luminance values ​​to obtain three primary luminance values ​​with the largest luminance values ​​and a supplementary luminance value with the smallest luminance value; performing defect correction on the three primary luminance values ​​to obtain three defect-corrected primary luminance values; and supplementing the minimum luminance value of the primary luminance value after defect correction with the supplementary luminance value to obtain three target luminance values; re-sorting the luminance values ​​of the three target luminance values; and performing white balance correction on the three target luminance values ​​based on the minimum target luminance value to obtain the white light output luminance of the pixel region.

[0141] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0142] The computer-readable storage medium may include: read-only memory (ROM), random access memory (RAM), disk or optical disk, etc.

[0143] Since the computer program stored in the computer-readable storage medium can execute the steps in any of the defect compensation methods for display panels provided in the embodiments of the present invention, the beneficial effects that any of the defect compensation methods for display panels provided in the embodiments of the present invention can achieve can be realized, as detailed in the preceding embodiments, and will not be repeated here.

[0144] The above provides a detailed description of a defect compensation method for a display panel provided by an embodiment of the present invention. Specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A method for defect compensation of a display panel, characterized in that, include: Obtain multiple luminance values ​​of multiple luminous pixels in each pixel region of the display panel, wherein the pixel region includes at least four luminous pixels; The brightness values ​​of the multiple luminous brightness values ​​are sorted to obtain the three main luminous brightness values ​​with the largest brightness values ​​and the supplementary luminous brightness value with the smallest brightness value; The three main luminous brightness values ​​are defect-corrected to obtain the three main luminous brightness values ​​after defect correction. Based on the supplementary luminous brightness, the main luminous brightness value with the smallest value after defect correction is supplemented to obtain the three target luminous brightness values. The brightness values ​​of the three target luminance values ​​are reordered, and white balance correction is performed on the three target luminance values ​​based on the minimum target luminance value to obtain the white light output brightness of the pixel area; Specifically, defect correction is performed on the three main luminous brightness values ​​to obtain three main luminous brightness values ​​after defect correction. Then, based on the supplementary luminous brightness, the main luminous brightness value with the smallest defect-corrected brightness value is supplemented to obtain three target luminous brightness values, including: Obtain the defect correction range and target white light brightness; The brightness of the three main light sources is subtracted from the brightness of the target white light to obtain multiple brightness difference values; When the brightness difference is within the defect correction range, defect correction is performed on the main luminous brightness corresponding to the brightness difference to obtain the target main luminous brightness whose brightness value is equal to the target white light brightness. When the brightness difference is greater than the defect correction range, the difference between the main luminous brightness corresponding to the brightness difference and the defect correction value is obtained to obtain the corrected main luminous brightness. When the brightness difference is less than the defect correction range, the main luminous brightness corresponding to the brightness difference is summed with the defect correction value to obtain the corrected main luminous brightness; When the minimum brightness value of the main luminous emission after defect correction is less than the target white light brightness, the main luminous emission brightness is summed with the supplementary luminous emission brightness to obtain the supplementary luminous emission brightness sum. When the supplementary luminance is less than the target white light luminance, the supplementary luminance is determined to be the target luminance, which is the main luminance. When the supplementary luminance is not less than the target white light luminance, the target white light luminance is determined to be the target luminance of the main luminance.

2. The defect compensation method for a display panel according to claim 1, characterized in that, Before acquiring the luminance of multiple luminous pixels in each pixel region of the display panel, the process also includes: The luminescent pixels of the display panel are divided into regions based on preset rules to obtain multiple pixel regions; The preset rules include at least one of the following: fixed area size division rules, fixed area shape division rules, area filtering rules requiring compensation, and user-defined rules.

3. The defect compensation method for a display panel according to claim 1, characterized in that, After supplementing the primary luminous brightness with the minimum brightness value after defect correction based on the supplemented luminous brightness to obtain the target luminous brightness, the process further includes: When the supplementary luminance is greater than the target white light luminance, the luminous pixel corresponding to the supplementary luminance is determined to be the first luminous pixel, and the luminous pixel corresponding to the main luminance with the smallest luminance value after defect correction is determined to be the second luminous pixel. The illumination states of the first and second luminous pixels are adjusted according to a preset illumination rule; The preset light emission rules include at least one of the following: adjusting the light emission state according to a preset ratio, adjusting the light emission state according to a main light emission priority rule, adjusting the light emission state according to a supplementary light emission priority rule, and user-defined light emission rules. The adjustment of the light emission state according to the main light emission priority rule means that during the brightness compensation process, the brightness output of the main light emission pixel is given priority; the adjustment of the light emission state according to the supplementary light emission priority rule means that during the brightness compensation process, the brightness output of the supplementary light emission pixel is given priority.

4. The defect compensation method for a display panel according to claim 1, characterized in that, The process of sorting the brightness values ​​of the plurality of luminance values ​​to obtain the three main luminance values ​​with the largest brightness values ​​and the supplementary luminance value with the smallest brightness value includes: When the pixel region includes five light-emitting pixels, the brightness values ​​of the plurality of light-emitting brightness values ​​are sorted to obtain three main light-emitting brightness values ​​with larger brightness values ​​and two supplementary light-emitting brightness values ​​with smaller brightness values.

5. The defect compensation method for a display panel according to claim 4, characterized in that, The process involves supplementing the brightness of the primary luminous intensity with the lowest brightness value after defect correction based on the supplemented luminous intensity, resulting in three target luminous intensities, including: The primary luminous brightness with the smallest brightness value after defect correction is determined as the first primary luminous brightness, the primary luminous brightness with the second smallest brightness value after defect correction is determined as the second primary luminous brightness, the supplementary luminous brightness with the smallest brightness value is determined as the first supplementary luminous brightness, and the supplementary luminous brightness with the larger brightness value is determined as the second supplementary luminous brightness. The first main luminous brightness is summed with the first supplementary luminous brightness and the second supplementary luminous brightness to obtain the first luminous brightness and the second luminous brightness; The second main luminous intensity is summed with the first supplementary luminous intensity to obtain the third luminous intensity; The two luminance values ​​with the larger values ​​among the first luminance, the second luminance, and the third luminance are determined as the target luminance.

6. A defect compensation device for a display panel, characterized in that, include: The luminance acquisition module is used to acquire the luminance of multiple luminous pixels in each pixel region of the display panel, wherein the pixel region includes at least four luminous pixels; The brightness sorting module is used to sort the brightness values ​​of the multiple luminous brightness values ​​to obtain the three main luminous brightness values ​​with larger brightness values ​​and the supplementary luminous brightness value with the smallest brightness value. The brightness compensation module is used to perform defect correction on the three main luminous brightness values ​​to obtain the three main luminous brightness values ​​after defect correction, and to supplement the brightness of the main luminous brightness value with the smallest value after defect correction based on the supplementary luminous brightness to obtain three target luminous brightness values. A brightness planning module is used to reorder the brightness values ​​of the three target luminous brightness values, and perform white balance correction on the three target luminous brightness values ​​based on the minimum target luminous brightness value to obtain the white light output brightness of the pixel area; Specifically, defect correction is performed on the three main luminous brightness values ​​to obtain three main luminous brightness values ​​after defect correction. Then, based on the supplementary luminous brightness, the main luminous brightness value with the smallest defect-corrected brightness value is supplemented to obtain three target luminous brightness values, including: Obtain the defect correction range and target white light brightness; The brightness of the three main light sources is subtracted from the brightness of the target white light to obtain multiple brightness difference values; When the brightness difference is within the defect correction range, defect correction is performed on the main luminous brightness corresponding to the brightness difference to obtain the target main luminous brightness whose brightness value is equal to the target white light brightness. When the brightness difference is greater than the defect correction range, the difference between the main luminous brightness corresponding to the brightness difference and the defect correction value is obtained to obtain the corrected main luminous brightness. When the brightness difference is less than the defect correction range, the main luminous brightness corresponding to the brightness difference is summed with the defect correction value to obtain the corrected main luminous brightness; When the minimum brightness value of the main luminous emission after defect correction is less than the target white light brightness, the main luminous emission brightness is summed with the supplementary luminous emission brightness to obtain the supplementary luminous emission brightness sum. When the supplementary luminance is less than the target white light luminance, the supplementary luminance is determined to be the target luminance, which is the main luminance. When the supplementary luminance is not less than the target white light luminance, the target white light luminance is determined to be the target luminance of the main luminance.

7. An electronic device, characterized in that, It includes a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor causes the processor to perform the following steps: Obtain multiple luminance values ​​of multiple luminous pixels in each pixel region of the display panel, wherein the pixel region includes at least four luminous pixels; The brightness values ​​of the multiple luminous brightness values ​​are sorted to obtain the three main luminous brightness values ​​with the largest brightness values ​​and the supplementary luminous brightness value with the smallest brightness value; The three main luminous brightness values ​​are defect-corrected to obtain the three main luminous brightness values ​​after defect correction. Based on the supplementary luminous brightness, the main luminous brightness value with the smallest value after defect correction is supplemented to obtain the three target luminous brightness values. The brightness values ​​of the three target luminance values ​​are reordered, and white balance correction is performed on the three target luminance values ​​based on the minimum target luminance value to obtain the white light output brightness of the pixel area; Specifically, defect correction is performed on the three main luminous brightness values ​​to obtain three main luminous brightness values ​​after defect correction. Then, based on the supplementary luminous brightness, the main luminous brightness value with the smallest defect-corrected brightness value is supplemented to obtain three target luminous brightness values, including: Obtain the defect correction range and target white light brightness; The brightness of the three main light sources is subtracted from the brightness of the target white light to obtain multiple brightness difference values; When the brightness difference is within the defect correction range, defect correction is performed on the main luminous brightness corresponding to the brightness difference to obtain the target main luminous brightness whose brightness value is equal to the target white light brightness. When the brightness difference is greater than the defect correction range, the difference between the main luminous brightness corresponding to the brightness difference and the defect correction value is obtained to obtain the corrected main luminous brightness. When the brightness difference is less than the defect correction range, the main luminous brightness corresponding to the brightness difference is summed with the defect correction value to obtain the corrected main luminous brightness; When the minimum brightness value of the main luminous emission after defect correction is less than the target white light brightness, the main luminous emission brightness is summed with the supplementary luminous emission brightness to obtain the supplementary luminous emission brightness sum. When the supplementary luminance is less than the target white light luminance, the supplementary luminance is determined to be the target luminance, which is the main luminance. When the supplementary luminance is not less than the target white light luminance, the target white light luminance is determined to be the target luminance of the main luminance.

8. A computer-readable storage medium, characterized in that, It stores a computer program, which is loaded by a processor to perform the steps in the defect compensation method for the display panel according to any one of claims 1-5.

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