Method for repairing display panel display defects and display device

Abstract

A method and display device for repairing display defects in a display panel, belonging to the field of display technology, can solve the problems of cumbersome repair steps, low repair rate, low labor costs, and low production capacity in existing display panel defect repair methods. The method for repairing display defects includes: in the module process stage, inputting a first data voltage to each pixel in the display panel to display the image to be tested and acquiring the brightness of each pixel (S101); determining a reference pixel and a defective pixel based on the image to be tested (S102); calculating a compensation data voltage for the defective pixel based on the brightness difference between the reference pixel and the defective pixel (S103); inputting the first data voltage to the reference pixel and simultaneously inputting a second data voltage to the defective pixel based on the compensation data voltage; the second data voltage is the sum of the first data voltage and the compensation data voltage (S104).

Description

Technical Field

[0001] This disclosure belongs to the field of display technology, and specifically relates to a method and display device for repairing display defects in a display panel. Background Technology

[0002] Organic light-emitting diodes (OLEDs) are light-emitting devices that use organic solid-state semiconductors as light-emitting materials. Due to their advantages such as simple fabrication process, low cost, low power consumption, high brightness, and wide operating temperature range, they have broad application prospects.

[0003] However, the backplane circuitry of current OLED products is more complex, presenting greater challenges in manufacturing processes compared to traditional Liquid Crystal Display (LCD) products. These challenges include finer linewidths, smaller sizes, and more layers stacked. The more complex and denser backplane circuitry distribution introduces more dot / line-type display defects into OLED products, such as bright spots. Repairing these defects is cumbersome, has a low repair rate, and results in lower labor costs and production capacity. Summary of the Invention

[0004] This disclosure aims to at least solve one of the technical problems existing in the prior art, and to provide a method and display device for repairing display defects in a display panel.

[0005] In a first aspect, embodiments of this disclosure provide a method for repairing display defects in a display panel, comprising:

[0006] During the module process stage, a first data voltage is input to each pixel in the display panel, so that the display panel displays the image to be tested and the brightness of each pixel is obtained.

[0007] Based on the image to be inspected, the reference pixel and the defect pixel are determined;

[0008] The compensation data voltage of the defective pixel is calculated based on the brightness difference between the reference pixel and the defective pixel.

[0009] Based on the compensation data voltage, a first data voltage is input to the reference pixel, and a second data voltage is input to the defective pixel; the second data voltage is the sum of the first data voltage and the compensation data voltage.

[0010] Optionally, obtaining the brightness of each of the pixels includes:

[0011] The image of the scene to be detected is captured by a high-definition camera.

[0012] The data is converted into matrix data through Fourier transform, and the matrix data is then enhanced to obtain the brightness of each pixel.

[0013] Optionally, the enhancement processing of the matrix data includes:

[0014] The matrix data is processed by squaring or taking the logarithm.

[0015] Optionally, the compensated data voltage includes: a first compensated data voltage;

[0016] The first compensation data voltage is the difference between the peak value of the data voltage input to the reference pixel and the current data voltage of the defective pixel.

[0017] Optionally, the compensated data voltage further includes: a second compensated data voltage;

[0018] The second compensation data voltage is calculated using a compensation algorithm.

[0019] Optionally, the pixel includes: a red sub-pixel, a green sub-pixel, and a blue sub-pixel; the step of inputting a first data voltage to each pixel in the display panel includes:

[0020] The first red data voltage, the first green data voltage, and the first blue data voltage are sequentially input to each red sub-pixel, each green sub-pixel, and each blue sub-pixel in the display panel.

[0021] Optionally, the reference pixel and the defective pixel are determined, including:

[0022] Determine the reference drive current based on known normal display panels and known defective display panels;

[0023] Obtain the current driving current of each pixel and compare the current driving current of each pixel with the reference driving current.

[0024] If the current driving current of the pixel is greater than the reference driving current, then the pixel is determined to be a defective pixel.

[0025] If the current driving current of the pixel is less than or equal to the reference driving current, then the pixel is determined to be a reference pixel.

[0026] Optionally, determining the reference drive current includes:

[0027] The first driving current of each pixel in multiple known normal display panels is collected, and the maximum value of the first driving current is recorded.

[0028] The second driving current of each pixel in multiple known brightness defect display panels is collected, and the minimum value of the second driving current is recorded.

[0029] Compare the maximum value of the first drive current with the minimum value of the second drive current;

[0030] If the ratio of the maximum value of the first drive current to the minimum value of the second drive current is greater than a preset value, then the minimum value of the second drive current is determined to be the reference drive current.

[0031] Optionally, calculating the compensation data voltage of the defective pixel based on the brightness difference between the reference pixel and the defective pixel includes:

[0032] Adjust the brightness of the defective pixel so that the current of the defective pixel is less than or equal to the reference driving current;

[0033] Record the data voltage of the defective pixel before and after adjustment;

[0034] The compensation data voltage is calculated based on the data voltage before adjustment and the data voltage after adjustment.

[0035] Optionally, the step of calculating the compensation data voltage of the defective pixel based on the brightness difference between the reference pixel and the defective pixel further includes:

[0036] The compensated data voltage is stored.

[0037] Optionally, storing the compensated data voltage further includes:

[0038] The stored compensation data voltage is extracted and input into the defective pixel.

[0039] If the brightness of the defective pixel is less than or equal to the brightness of the reference pixel, then the display defect is determined to have been successfully repaired.

[0040] Secondly, embodiments of this disclosure provide a display device, wherein the display device includes: a display panel and a storage module; the storage module stores compensation data voltage; the compensation data voltage is obtained by the method for repairing display defects of the display panel as provided above. Attached Figure Description

[0041] Figure 1 A flowchart illustrating a method for repairing display defects in a display panel according to an embodiment of this disclosure;

[0042] Figure 2A flowchart illustrating a method for obtaining the brightness of each pixel according to an embodiment of this disclosure;

[0043] Figure 3 A flowchart illustrating a method for determining reference pixels and defective pixels provided in an embodiment of this disclosure;

[0044] Figure 4 A flowchart illustrating a method for determining a reference drive current according to an embodiment of this disclosure;

[0045] Figure 5 This is a flowchart illustrating a method for calculating the compensation data voltage of defective pixels, provided in an embodiment of this disclosure. Detailed Implementation

[0046] To enable those skilled in the art to better understand the technical solutions of this disclosure, the disclosure will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an,” “a,” or “the,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “including,” “comprising,” or “containing,” and similar terms mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. The terms “connected,” “linked,” or similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” and “right,” etc., are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0048] Compared to traditional LCD products, OLED products have absolute advantages in display quality and energy consumption, such as high brightness, wide color gamut, wide viewing angle, transparent display, ultra-thinness, and low power consumption. Therefore, OLED products are gaining increasing trust from users. The manufacturing process of OLED products is mainly divided into four stages: color film process, array process, cell process, and module process.

[0049] Currently, display panels assembled after the Cell stage require a lighting test. If a display defect, such as a bright spot, is found, it is repaired. Generally, the bright spot repair process is as follows: 1) The display panel is tested using a lighting device to detect bright spots; 2) Special markings (circles, triangles, etc.) are made at the location of the bright spot, and the panel is then transferred to the repair process; 3) The panel is manually placed into the repair equipment and manually lit. The operator locates the bright spot under the lens of a charge-coupled device (CCD) camera based on the special markings; 4) The laser repair probe is manually moved to the location of the bright spot and cut to repair it; After repair, the display panel is sent to the secondary inspection process. The repaired panel undergoes a second lighting test to confirm the repair effect. If the repair is successful, it is transferred to the next station normally; if the repair fails, the product is scrapped. As can be seen from the above steps for repairing bright spots, most of the current methods for repairing bright spots rely on manual operation. The repair process is cumbersome, greatly affected by human factors, which is not conducive to improving the efficiency of bright spot repair, resulting in a low repair rate. At the same time, the high labor cost affects the production capacity of OLED products.

[0050] In order to at least solve one of the above-mentioned technical problems, this disclosure provides a method and display device for repairing display defects in a display panel. The method and display device for repairing bright spots in a display panel provided by this disclosure will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0051] In a first aspect, embodiments of this disclosure provide a method for repairing display defects in a display panel. Figure 1 This is a flowchart illustrating a method for repairing display defects in a display panel according to an embodiment of the present disclosure. Figure 1 As shown in the embodiments of this disclosure, the method for repairing display defects in a display panel includes the following steps:

[0052] In step S101, during the module process stage, a first data voltage is input to each pixel in the display panel to display the image to be tested and to obtain the brightness of each pixel.

[0053] In step S101, the first data signal is a test data signal. During the module manufacturing stage, the display panel is basically assembled. At this stage, a series of display defect tests need to be performed on the display panel, such as uneven brightness. The first data voltage can be input to each pixel during the module manufacturing stage to illuminate each pixel and form the image to be tested. The brightness of each pixel is then obtained through the formed test image.

[0054] Step S102: Based on the image to be inspected, determine the reference pixel and the defect pixel.

[0055] In step S102, if a display defect exists in the display panel, the brightness of that point in the image to be tested will be different from the brightness of its surroundings. Generally, defective pixels in a display panel only account for a small portion of all pixels. This allows us to determine whether the pixels in the display panel are normal. Certain normal pixels are designated as reference pixels, and abnormal pixels that differ from normal pixels are designated as defective pixels. For example, within a 4x4 pixel area, if the brightness of the second pixel in the second row is significantly higher than the brightness of its surrounding pixels, then that pixel is a defective pixel.

[0056] Step S103: Calculate the compensation data voltage of the defective pixel based on the brightness difference between the reference pixel and the defective pixel.

[0057] In step S103, the brightness of the defective pixel in the display panel is much higher than that of the reference pixel. Based on the difference in brightness between the two, the compensation data voltage of the defective pixel can be calculated. The compensation data voltage is the difference between the peak value of the data voltage input to each reference pixel and the current data voltage of the defective pixel, so that the brightness of the defective pixel is reduced to be lower than or equal to the brightness of the reference pixel, thereby realizing the display defect repair of the display panel.

[0058] Step S104: Based on the compensation data voltage, input a first data voltage to the reference pixel and simultaneously input a second data voltage to the defective pixel; the second data voltage is the sum of the first data voltage and the compensation data voltage.

[0059] In step S104, the first data voltage is input to the reference pixel, and the first data voltage and the compensation data voltage are simultaneously input to the defective pixel. In the display panel, the brightness of the pixel is determined by the current passing through the pixel, and the current Id = K*(Vdata-VDD). 2 In the formula, K is a constant, Vdata represents the first data voltage, and VDD is a fixed power supply voltage. In the current formula, Vdata is a variable; adjusting Vdata controls the current Id, thus controlling the pixel brightness. A larger current Id results in a brighter pixel. In practical applications, Vdata is generally ≤ VDD (related to the switching characteristics of the thin-film transistors in the display panel). Therefore, the larger Vdata is, the brighter the pixel brightness will be (Vdata - VDD). 2The smaller the value, i.e. the smaller the current Id, the lower the brightness. Based on the original first data voltage, a compensation data voltage is input to form a second data voltage. The second data voltage must be greater than the first data voltage. This reduces the current Id of the defective pixel, thereby making the brightness of the defective pixel lower than or equal to the brightness of the reference pixel, thus achieving the repair of display defects in the display panel.

[0060] In the display panel defect repair method provided in this embodiment, the defective pixels in the display panel are repaired using a compensation data voltage during the module manufacturing stage. This ensures that the brightness of the defective pixel is lower than or equal to the brightness of the reference pixel. This eliminates the need for LED testing during the panel manufacturing stage, allowing for automatic feedback repair by controlling the data signal input to the defective pixel. This reduces the waste of manpower and equipment costs during the module manufacturing stage and significantly improves the accuracy and success rate of display panel defect repair, thereby greatly increasing the efficiency of display panel defect repair and ultimately increasing OLED product production capacity. Furthermore, since the display defect repair is completed during the module manufacturing stage, secondary damage to the display panel during this stage is avoided, further reducing the cost of bright spot repair and enhancing product competitiveness.

[0061] In some embodiments, Figure 2 This is a flowchart illustrating a method for obtaining the brightness of each pixel according to an embodiment of the present disclosure, as shown below. Figure 2 As shown, obtaining the brightness of each pixel includes the following steps:

[0062] S201 uses a high-definition camera to take pictures of the scene to be inspected and acquires an image of the scene to be inspected.

[0063] S202 converts the image into matrix data through Fourier transform and enhances the matrix data to obtain the brightness of each pixel.

[0064] In practical applications, there are various methods to obtain the brightness of each pixel in a display panel. In this embodiment, a high-definition camera can be used to capture the image to be detected formed by the input first data voltage to obtain image information of the image to be detected. The image information is then transmitted to a processor, which can be a computer. The computer can convert the image information into matrix data through Fourier transform. To obtain the brightness of each pixel more accurately, the matrix data can be enhanced.

[0065] In some embodiments, enhancing matrix data includes processing the matrix data by squaring or taking the logarithm.

[0066] The matrix data can be processed by squaring or taking the logarithm to make each defective pixel brighter and improve the contrast with the surrounding reference pixels. This allows for a more accurate acquisition of the brightness of each pixel, thereby accurately determining the reference pixels and defective pixels and avoiding misjudgment of defective pixels that could affect the efficiency of display defect repair.

[0067] In some embodiments, the compensation data voltage includes: a first compensation data voltage; the first compensation data voltage is the difference between the peak value of the data voltage input to the reference pixel and the current data voltage of the defective pixel.

[0068] The first compensation data voltage ΔV(ng) = Vmax - V(ng), where Vmax is the peak value of the data voltage input to the reference pixel, and V(ng) is the current data voltage of the defective pixel. That is, the first compensation data voltage is the difference between the peak value of the data voltage input to the reference pixel and the current data voltage of the defective pixel. The compensated data voltage of the defective pixel is Vmax. According to the current formula above: Id = K*(Vdata - VDD) 2 This allows the compensated data voltage Vdata=Vmax to approach VDD, making the current Id approach zero. The brightness of the defective pixel is almost zero, changing from a bright spot to a dark spot, thus achieving display defect repair.

[0069] In some embodiments, the compensation data voltage further includes: a second compensation data voltage; the second compensation data voltage is calculated by a compensation algorithm.

[0070] In addition to the first compensation data voltage used for display defect compensation mentioned above, the compensation data voltage also includes a second compensation data voltage used for display unevenness defects. This second compensation data voltage can be obtained through a display unevenness compensation algorithm. In this way, when compensating for display unevenness defects in the display panel during the module process stage, display defect compensation can be performed directly on the display panel, thereby reducing the steps of detection and repair, improving the repair efficiency of the display panel, and thus increasing the production capacity of the display panel.

[0071] In some embodiments, a pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel; inputting a first data voltage to each pixel in the display panel includes: sequentially inputting a first red data voltage, a first green data voltage, and a first blue data voltage to each red sub-pixel, each green sub-pixel, and each blue sub-pixel in the display panel, respectively.

[0072] Each pixel can consist of red, green, and blue sub-pixels. A white sub-pixel can also be added, with the same implementation principle as the three-sub-pixel setup, which will not be detailed further. When inputting the first data voltage to each pixel in the display panel, the same data voltage can be input only to sub-pixels of the same color each time, ensuring the display panel shows only one color image, such as a red, green, or blue image. This makes it easier to pinpoint the location of defective pixels. Furthermore, when only one color of sub-pixel on the display panel has a display defect, it is unnecessary to repair other color sub-pixels, thus improving the efficiency of bright spot repair.

[0073] In some embodiments, Figure 3 This is a flowchart illustrating a method for determining reference pixels and defective pixels according to an embodiment of the present disclosure, as shown below. Figure 3 As shown, the reference pixel and defective pixel are determined, including the following steps:

[0074] S301, determine the reference drive current based on known normal display panels and known defective display panels.

[0075] S302, obtain the current driving current of each pixel and compare the current driving current of each pixel with the reference driving current. If the current driving current of a pixel is greater than the reference driving current, the pixel is determined to be a defective pixel; if the current driving current of a pixel is less than or equal to the reference driving current, the pixel is determined to be a reference pixel.

[0076] In practical applications, each pixel in the display panel can be scanned point by point to obtain and record the current driving current of each pixel. The higher the driving current, the higher the brightness of the pixel. If the current driving current of a pixel is greater than the reference driving current, it indicates that the brightness of the pixel is greater than that of a normal pixel, indicating a display defect. If the current driving current of a pixel is less than or equal to the reference driving current, it indicates that the brightness of the pixel is less than or equal to that of a normal pixel, and this pixel is considered normal and can be designated as the reference pixel. This eliminates the need for manual operation to determine the location of defective pixels, avoiding errors caused by manual operation, thereby improving the efficiency of bright spot repair and ultimately increasing the production capacity of the display panel.

[0077] In some embodiments, Figure 4 A flowchart illustrating a method for determining a reference drive current provided in an embodiment of this disclosure is shown below. Figure 4 As shown, the method for determining the reference drive current includes the following steps:

[0078] S401: Collect the first driving current of each pixel in a known normal display panel and record the maximum value of the first driving current.

[0079] S402, collect the second driving current of each pixel in the known defective display panel, and record the minimum value of the second driving current.

[0080] S403, compare the maximum value of the first drive current with the minimum value of the second drive current. If the ratio of the maximum value of the first drive current to the minimum value of the second drive current is greater than a preset value, then the minimum value of the second drive current is determined to be the reference drive current.

[0081] In practical applications, the first driving current of each pixel in a known normal display panel can be collected, and its maximum value Id(OK-max) can be recorded. Similarly, the second driving current of each pixel in a known display panel with display defects can be collected, and its minimum value Id(NG-min) can be recorded. Comparing Id(OK-max) and Id(NG-min), if Id(OK-max) / Id(NG-min) is greater than a preset value (which can be 50%, 60%, or 70%), then Id(NG-min) is determined as the reference driving current. It is understood that the preset value can also be set according to actual needs; however, it should not be set too small to avoid misjudging defective pixels.

[0082] In some embodiments, Figure 5 A flowchart illustrating a method for calculating compensation data voltage for defective pixels provided in this disclosure is shown below. Figure 5 As shown, the method for calculating the compensation data voltage of defective pixels includes the following steps:

[0083] S501 adjusts the brightness of the defective pixel so that the current of the defective pixel is less than or equal to the reference drive current.

[0084] S502 records the data voltage of the defective pixel before and after adjustment.

[0085] S503 calculates the compensation data voltage based on the data voltage before and after adjustment.

[0086] In practical applications, since pixel brightness is positively correlated with its driving current, the driving current can be adjusted by regulating the input data voltage to the pixel. This ensures that the driving current of the defective pixel is less than or equal to the reference driving current, thus reducing the brightness of the defective pixel to the same level as the surrounding normal pixels, or making the defective pixel a dark spot, thereby repairing the display defect. Simultaneously, the input data voltage before and after adjustment for the pixel is recorded; the difference between the two is the compensation data voltage that needs to be input.

[0087] In some embodiments, the compensation data voltage of the defective pixel is calculated based on the brightness difference between the reference pixel and the defective pixel, and then the compensation data voltage is stored.

[0088] The compensation data voltage can be stored in the storage module of the display module. During the application of the display module, the stored compensation data voltage can be directly called from the storage module to compensate for the display defect pixels in the display panel, so that the display screen is uniform, thereby improving the display effect and enhancing the user experience.

[0089] In some embodiments, the compensation data voltage is stored, and then the method further includes: extracting the stored compensation data voltage and inputting the compensation data voltage to the defective pixel; if the brightness of the defective pixel is less than or equal to the brightness of the reference pixel, it is determined that the display defect repair is successful.

[0090] After compensating for the voltage, further confirmation of the display panel defect repair is needed to determine if the stored compensation voltage meets the requirements for bright spot repair. Specifically, the stored compensation voltage can be directly extracted and input to the defective pixel. By observing or detecting the driving current, the presence of display defects in the display panel can be checked. If no display defects are found, the display defect repair is confirmed to be successful. If display defects still exist, the display defect repair is confirmed to have failed, and the display panel should be scrapped.

[0091] Secondly, this disclosure provides a display device, which includes a display panel and a storage module. The storage module stores a compensation data voltage. This compensation data voltage is obtained through a method for repairing display defects in the display panel as provided in any of the above embodiments. The display device can be any product or component with a display function, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator. Its implementation principle and beneficial effects are the same as those of the above-described method for repairing display defects in the display panel, and will not be repeated here.

[0092] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of this disclosure, and this disclosure is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of this disclosure, and these modifications and improvements are also considered to be within the scope of protection of this disclosure.

Claims

1. A method for repairing display defects in a display panel, wherein, include: During the module process stage, a first data voltage is input to each pixel in the display panel, so that the display panel displays the image to be tested and the brightness of each pixel is obtained. Based on the image to be inspected, the reference pixel and the defect pixel are determined; The compensation data voltage of the defective pixel is calculated based on the brightness difference between the reference pixel and the defective pixel. Based on the compensation data voltage, a first data voltage is input to the reference pixel, and a second data voltage is input to the defective pixel. The second data voltage is the sum of the first data voltage and the compensated data voltage; The reference pixel and defective pixel were identified, including: Determine the reference drive current based on known normal display panels and known defective display panels; Obtain the current driving current of each pixel and compare the current driving current of each pixel with the reference driving current. If the current driving current of the pixel is greater than the reference driving current, then the pixel is determined to be a defective pixel. If the current driving current of the pixel is less than or equal to the reference driving current, then the pixel is determined to be a reference pixel. The determination of the reference drive current includes: Collect the first driving current of each pixel in a known normal display panel, and record the maximum value of the first driving current; Collect the second driving current of each pixel in the known defective display panel, and record the minimum value of the second driving current; Compare the maximum value of the first drive current with the minimum value of the second drive current; If the ratio of the maximum value of the first drive current to the minimum value of the second drive current is greater than a preset value, then the minimum value of the second drive current is determined to be the reference drive current.

2. The method for repairing display defects in a display panel according to claim 1, wherein, The step of obtaining the brightness of each pixel includes: The image of the scene to be detected is captured by a high-definition camera. The data is converted into matrix data through Fourier transform, and the matrix data is then enhanced to obtain the brightness of each pixel.

3. The method for repairing display defects in a display panel according to claim 2, wherein, The enhancement processing of the matrix data includes: The matrix data is processed by squaring or taking the logarithm.

4. The method for repairing display defects in a display panel according to claim 3, wherein, The compensation data voltage includes: a first compensation data voltage; The first compensation data voltage is the difference between the peak value of the data voltage input to the reference pixel and the current data voltage of the defective pixel.

5. The method for repairing display defects in a display panel according to claim 4, wherein, The compensation data voltage further includes: a second compensation data voltage; The second compensation data voltage is calculated using a compensation algorithm.

6. The method for repairing display defects in a display panel according to claim 2, wherein, The pixels include: red sub-pixels, green sub-pixels, and blue sub-pixels; the step of inputting a first data voltage to each pixel in the display panel includes: The first red data voltage, the first green data voltage, and the first blue data voltage are sequentially input to each red sub-pixel, each green sub-pixel, and each blue sub-pixel in the display panel.

7. The method for repairing display defects in a display panel according to claim 1, wherein, Based on the brightness difference between the reference pixel and the defective pixel, the compensation data voltage of the defective pixel is calculated, including: Adjust the brightness of the defective pixel so that the current of the defective pixel is less than or equal to the reference driving current; Record the data voltage of the defective pixel before and after adjustment; The compensation data voltage is calculated based on the data voltage before adjustment and the data voltage after adjustment.

8. The method for repairing display defects in a display panel according to claim 1, wherein, The step of calculating the compensation data voltage of the defective pixel based on the brightness difference between the reference pixel and the defective pixel further includes: The compensated data voltage is stored.

9. The method for repairing display defects in a display panel according to claim 8, wherein, After storing the compensated data voltage, the process further includes: The stored compensation data voltage is extracted and input into the defective pixel. If the brightness of the defective pixel is less than or equal to the brightness of the reference pixel, then the display defect is determined to have been successfully repaired.

10. A display device, wherein, The display device includes: a display panel and a storage module; the storage module stores compensation data voltage; the compensation data voltage is obtained by the method for repairing display defects of the display panel as described in any one of claims 1 to 9.

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