Method and device for detecting reverse bright spot of display screen, electronic equipment and storage medium

Abstract

The application discloses a kind of detection display screen reverse bright spot method, device, electronic equipment and storage medium, comprising: control display screen display detection image, obtain the electrical parameter of pixel point when display screen displays detection image, determine reverse bright spot according to the electrical parameter of same column pixel point, generate exception prompt box and display exception prompt box with reverse bright spot as center, this embodiment has realized whether pixel point is reverse bright spot by the voltage, current and other electrical parameters of pixel point in display screen, if yes, then generate prompt box and display the prompt box, to prompt detection personnel reverse bright spot position, solve the problem that it is difficult to detect reverse bright spot by the gray value of each pixel point in image after display screen displays image, improve the detection rate of reverse bright spot, avoid missing detection reverse bright spot, improve the quality of display screen, and through display prompt box, detection personnel can conveniently review reverse bright spot, improve detection efficiency.

Description

Technical Field

[0001] This invention relates to the field of display screen testing technology, and in particular to a method, apparatus, electronic device, and storage medium for detecting inverted bright spots on a display screen. Background Technology

[0002] A display screen consists of a pixel array composed of multiple columns and rows of pixels. In high-resolution displays, the distance between pixels is very small. During the manufacturing process, adjacent pixels are prone to short circuits. This can cause the other pixel to be lit when one of the adjacent pixels is lit, due to the short circuit. The other pixel is called a reverse bright spot. A reverse bright spot is a pixel that should not be lit when there is no lighting drive signal but is lit.

[0003] Currently, the method for detecting inverted bright spots is to convert the image displayed on the screen to a grayscale image after driving the display, and then determine the inverted bright spot by the grayscale value of each pixel in the grayscale image. However, since inverted bright spots are caused by short circuits between two adjacent pixels, the difference between the grayscale value of the inverted bright spot and the grayscale value of the surrounding pixels is small, making it difficult to detect inverted bright spots and posing a risk of missing inverted bright spots. Summary of the Invention

[0004] This invention provides a method, apparatus, electronic device, and storage medium for detecting inverted bright spots on a display screen, in order to solve the problem in the prior art that it is difficult to detect inverted bright spots by using the grayscale values ​​of the image after the display screen has displayed an image.

[0005] In a first aspect, the present invention provides a method for detecting inverted bright spots on a display screen, comprising:

[0006] Control the display screen to show the detection image;

[0007] Obtain the electrical parameters of the pixels when the display screen shows the detected image;

[0008] The inverted bright spot is determined based on the electrical parameters of pixels in the same column;

[0009] An error message box is generated and displayed centered on the inverted highlight.

[0010] In an optional embodiment, the control display screen displays the detected image, including:

[0011] Obtain the compensation data of the display screen;

[0012] The display screen is controlled to show the detected image based on the compensation data.

[0013] In an optional embodiment, determining the inverted bright spot based on the electrical parameters of pixels in the same column includes:

[0014] Calculate the absolute value of the difference in electrical parameters between two adjacent pixels in the same column, and obtain multiple absolute values;

[0015] The inverted bright spot is determined based on multiple absolute values.

[0016] In an optional embodiment, determining the inverted bright spot based on a plurality of the absolute values ​​includes:

[0017] Determine the absolute value ABSi(j, j-1) that is greater than a preset threshold from multiple absolute values, where the absolute value ABSi(j, j-1) is the absolute value of the difference between the electrical parameters of the pixel in the j-th row and the pixel in the (j-1)-th row of the i-th column.

[0018] Determine whether the absolute value ABSi(j-1, j-2) is greater than a preset threshold. The absolute value ABSi(j-1, j-2) is the absolute value of the difference between the electrical parameters of the pixels in the (j-1)th row and the pixels in the (j-2)th row of the i-th column.

[0019] If so, determine that pixel Ni(j-1) is the inverted bright spot, where pixel Ni(j-1) is the pixel in the (j-1)th row of the i-th column;

[0020] If not, determine that pixel Nij is the inverted bright spot, where pixel Nij is the pixel in the j-th row of the i-th column.

[0021] In an optional embodiment, determining the inverted bright spot based on the electrical parameters of pixels in the same column includes:

[0022] Calculate the average electrical parameters of pixels in the same column;

[0023] For each pixel in the same column of pixels, calculate the absolute value of the difference between the electrical parameter of the pixel and the average value;

[0024] Determine whether the absolute value is greater than a preset threshold;

[0025] If so, determine that the pixel is a reversed bright spot;

[0026] If not, the pixel is determined to be a normal pixel.

[0027] In an optional embodiment, it further includes:

[0028] When it is determined that both pixel point Nij and pixel point N(i-1)j are inverted bright spots, the type of the inverted bright spot is determined based on the color attributes of the i-th column of pixels and the color attributes of the (i-1)-th column of pixels;

[0029] The process of generating an error message box and displaying the error message box centered on the inverted highlight includes:

[0030] Generate an error message box of a preset size;

[0031] The error message box and the type of the inverted highlight are displayed centered on the inverted highlight.

[0032] In an optional embodiment, a pixel unit includes red pixels, white pixels, blue pixels, and green pixels arranged from left to right. When it is determined that pixels Nij and N(i-1)j are both inverted bright spots, determining the type of the inverted bright spot based on the color attributes of the i-th column of pixels and the (i-1)-th column of pixels includes:

[0033] Determine whether one of the pixels Nij and N(i-1)j is a red pixel and the other is a green pixel;

[0034] If so, determine the type of the inverted bright spot as a cross-pixel unit inverted bright spot;

[0035] If not, the type of inverted bright spot is determined to be an inverted bright spot within a pixel unit, which includes red-white pixel inverted bright spots, white-blue pixel inverted bright spots, and blue-green pixel inverted bright spots.

[0036] Secondly, the present invention provides an apparatus for detecting inverted bright spots on a display screen, comprising:

[0037] The detection image display module is used to control the display screen to show the detection image;

[0038] An electrical parameter acquisition module is used to acquire the electrical parameters of pixels when the display screen shows the detection image;

[0039] The inverted bright spot determination module is used to determine the inverted bright spot based on the electrical parameters of pixels in the same column.

[0040] The error message display module is used to generate an error message box and display the error message box centered on the inverted highlight.

[0041] Thirdly, the present invention provides an electronic device, the electronic device comprising:

[0042] At least one processor; and

[0043] A memory communicatively connected to the at least one processor; wherein,

[0044] The memory stores a computer program that can be executed by the at least one processor to enable the at least one processor to perform the method for detecting inverted bright spots on a display screen as described in the first aspect of the invention.

[0045] Fourthly, the present invention provides a computer-readable storage medium storing computer instructions for causing a processor to execute the method for detecting inverted bright spots on a display screen as described in the first aspect of the present invention.

[0046] In this embodiment of the invention, after the display screen shows the detection image, the electrical parameters of the pixels when the display screen shows the detection image are obtained. Based on the electrical parameters of pixels in the same column, inverted bright spots are identified, and an abnormal prompt box is generated and displayed centered on the inverted bright spot. This achieves the goal of determining whether a pixel is an inverted bright spot by using electrical parameters such as voltage and current of the pixels in the display screen. If it is, a prompt box is generated and displayed to indicate the location of the inverted bright spot to the inspector. This solves the problem that it is difficult to detect inverted bright spots by the grayscale value of each pixel in the image after the display screen has displayed it, improving the detection rate of inverted bright spots, avoiding missed detections of inverted bright spots, improving the quality of the display screen, and facilitating the inspector's review of inverted bright spots by displaying the prompt box, thus improving inspection efficiency.

[0047] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. 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 diagram illustrating the reversal of bright spots;

[0050] Figure 2 This is a flowchart of a method for detecting inverted bright spots on a display screen according to Embodiment 1 of the present invention;

[0051] Figure 3A This is a flowchart of a method for detecting inverted bright spots on a display screen according to Embodiment 2 of the present invention;

[0052] Figure 3B This is a schematic diagram of the display screen pixels in this embodiment;

[0053] Figure 4 This is a schematic diagram of the structure of a device for detecting inverted bright spots on a display screen provided in Embodiment 3 of the present invention;

[0054] Figure 5This is a schematic diagram of the structure of the electronic device provided in Embodiment 4 of the present invention. Detailed Implementation

[0055] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. 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 should fall within the scope of protection of the present invention.

[0056] like Figure 1 As shown, the display screen includes multiple rows of red (R), white (W), blue (B), and green (G) pixels arranged from left to right. When a short circuit occurs in a row of pixels between two adjacent columns, such as... Figure 1 When a short circuit occurs between pixels P1 and P2, if it is necessary to control pixel P1 to be lit while pixel P2 is not lit, pixel P2 will also be lit due to the short circuit. In other words, pixel P2 is a pixel that should not be lit but is lit, and is called a reversed bright spot. Because of the short circuit between pixels P1 and P2, some of the current that should flow through pixel P1 also flows through pixel P2, resulting in a small brightness difference between pixels P1 and P2. When detecting reversed bright spots by analyzing the grayscale of the image displayed on the screen, it is difficult to detect them because the grayscale values ​​of each pixel are so similar.

[0057] To address the problem of difficulty in detecting inverted bright spots through image grayscale, the present invention provides a method for detecting inverted bright spots on a display screen according to the following embodiments. The method determines the inverted bright spots by using the electrical parameters of pixels in the same column when the detection image is displayed on the display screen, and generates an abnormal prompt box. The abnormal prompt box is displayed with the inverted bright spot as the center, thereby improving the detection rate of inverted bright spots.

[0058] Example 1

[0059] Figure 2 This is a flowchart of a method for detecting inverted bright spots on a display screen according to Embodiment 1 of the present invention. This embodiment is applicable to the detection of inverted bright spots on a display screen. The method can be executed by a device for detecting inverted bright spots on a display screen. This device can be implemented in hardware and / or software and can be configured in an electronic device. Figure 2 As shown, the method for detecting inverted bright spots on a display screen includes:

[0060] S201, Control the display screen to show the detection image.

[0061] The display screen can be an LCD screen, an LED screen, etc., and it is composed of multiple pixels. In one example, such as... Figure 1 As shown, the display screen includes multiple rows of red (R), white (W), blue (B), and green (G) pixels arranged from left to right, with each pixel unit including one red (R), white (W), blue (B), and green (G) pixel.

[0062] In this embodiment, the detection image can be an image used to detect inverted bright spots. In one example, the detection image may include one image or multiple images; for example, the detection image may be multiple images of a single color. The compensation data may be data used by the display screen to ensure uniform brightness across the entire display. In one embodiment, the compensation data of the display screen can be obtained first. This compensation data may be data used to control the display screen to achieve uniform brightness. This compensation data can be obtained after the display screen has undergone brightness calibration. Based on the compensation data, the display screen is controlled to display the detection image to improve the quality of the displayed detection image and avoid excessive differences in display brightness across different areas of the display screen, which could lead to a decrease in the detection accuracy of inverted bright spots. This is achieved by displaying a high-quality detection image to improve the detection accuracy of inverted bright spots.

[0063] S202. Obtain the electrical parameters of the pixels when the detection image is displayed on the screen.

[0064] In this embodiment, the electrical parameters can be the driving current, driving voltage, and other electrical parameters when each pixel is lit. When the display screen of this embodiment displays the detected image, it can obtain the driving current or driving voltage when each pixel is lit. For example, the driving current, driving voltage, and other electrical parameters of each pixel can be detected in the driving circuit of the display screen.

[0065] S203. Determine the inverted bright spot based on the electrical parameters of pixels in the same column.

[0066] Each column of pixels displays one of the colors red, green, white, or blue. When displaying the detection image, the corresponding columns of pixels can be controlled to display the corresponding color in sequence. When there are no inverted bright spots in the adjacent columns of pixels in a column, the electrical parameters such as the driving current or driving voltage of the pixels in that column should be consistent. Therefore, the absolute value of the difference between the electrical parameters of two adjacent pixels in the same column can be calculated. If the absolute value is greater than a preset threshold, then either of the two adjacent pixels is determined to be an inverted bright spot.

[0067] In another embodiment, the average value of the electrical parameters of pixels in the same column can be calculated. If the difference between the electrical parameters of pixels in the same column and the average value is greater than a preset threshold, the pixel can be determined to be a reversed bright spot.

[0068] S204. Generate an error message box and display the error message box with the inverted highlight as the center.

[0069] Once the inverted bright spot is identified, its pixel coordinates can be determined, and an abnormality warning box of a preset size can be generated and displayed centered on the inverted bright spot to prompt the inspection personnel to confirm the area where the abnormality warning box is located.

[0070] In this embodiment of the invention, after the display screen shows the detection image, the electrical parameters of the pixels when the display screen shows the detection image are obtained. Based on the electrical parameters of pixels in the same column, inverted bright spots are identified, and an abnormal prompt box is generated and displayed centered on the inverted bright spot. This achieves the goal of determining whether a pixel is an inverted bright spot by using electrical parameters such as voltage and current of the pixels in the display screen. If it is, a prompt box is generated and displayed to indicate the location of the inverted bright spot to the inspector. This solves the problem that it is difficult to detect inverted bright spots by the grayscale value of each pixel in the image after the display screen has displayed it, improving the detection rate of inverted bright spots, avoiding missed detections of inverted bright spots, improving the quality of the display screen, and facilitating the inspector's review of inverted bright spots by displaying the prompt box, thus improving inspection efficiency.

[0071] Example 2

[0072] Figure 3A This is a flowchart of a method for detecting inverted bright spots on a display screen according to Embodiment 2 of the present invention. This embodiment of the present invention is an optimization based on Embodiment 1 described above, such as... Figure 3A As shown, the method for detecting inverted bright spots on a display screen includes:

[0073] S301, Control the display screen to show the detection image.

[0074] S302. Obtain the electrical parameters of the pixels when the detection image is displayed on the screen.

[0075] In this embodiment, S301-S302 can refer to S201-S202 in Embodiment 1, and will not be described in detail here.

[0076] S303. Calculate the absolute value of the difference in electrical parameters between two adjacent pixels in the same column, and obtain multiple absolute values.

[0077] Specifically, for each pixel Nij in column i, the absolute value of the difference in point parameters between two adjacent pixels, ABSi(j,j-1), can be calculated. The absolute value ABSi(j,j-1) represents the absolute value of the difference in point parameters between pixel Ni(j-1) in the (j-1)th row of column i and pixel Nij in the jth row. Figure 3BAs shown, pixel columns are represented by i and pixel rows by j. By calculating the absolute value of the difference in electrical parameters between two adjacent pixels Ni(j-1) and Nij in the same column, multiple absolute values ​​can be obtained.

[0078] S304. Determine the inverted bright spot based on multiple absolute values.

[0079] In one embodiment, an absolute value ABSi(j, j-1) greater than a preset threshold can be determined from multiple absolute values. Here, the absolute value ABSi(j, j-1) is the absolute value of the difference between the electrical parameters of the pixel in the j-th row and the pixel in the (j-1)-th row of the i-th column. Further, it is determined whether the absolute value ABSi(j-1, j-2) is greater than the preset threshold. If the absolute value ABSi(j-1, j-2) is the absolute value of the difference between the electrical parameters of the pixel in the (j-1)-th row and the pixel in the (j-2)-th row of the i-th column, if yes, pixel Ni(j-1) is determined to be a reversed bright spot and pixel Ni(j-1) is the pixel in the (j-1)-th row of the i-th column. If no, pixel Nij is determined to be a reversed bright spot and pixel Nij is the pixel in the j-th row of the i-th column.

[0080] like Figure 3B As shown, assuming j=5 and i=8 as an example, if the absolute value of the difference in electrical parameters between pixel N85 in row 5 and pixel N84 in row 4 of column 8 is greater than a preset threshold, such as greater than threshold 10, then one of pixel N84 and N85 is determined to be a reversed bright spot. Then, it is further determined whether the absolute value of the difference in electrical parameters between pixel N84 in row 4 and pixel N83 in row 3 of column 8 is greater than a preset threshold. If yes, then pixel N84 is determined to be a reversed bright spot; if no, then pixel N83 is determined to be a reversed bright spot.

[0081] like Figure 3B As shown, the electrical parameter of pixel G in row 5 of column 8 is 511, the electrical parameter of pixel G in row 4 of column 8 is 806, and the electrical parameter of pixel G in row 3 of column 8 is 512. Therefore, the absolute value of the difference between the electrical parameter 511 and the electrical parameter 806 of pixel G in row 4 of column 8 is 295, and the absolute value of the difference between the electrical parameter 806 and the electrical parameter 512 of pixel G in row 3 of column 8 is 294. Both are greater than the threshold of 10. Therefore, pixel G in row 4 of column 8 is determined to be a reversal bright spot. Similarly, pixel B in row 4 of column 7 can be determined to be a reversal bright spot. This achieves the goal of determining reversal bright spots by the absolute value of the difference in electrical parameters between two adjacent pixels in the same column, resulting in high accuracy in determining reversal bright spots.

[0082] In another embodiment, after obtaining multiple absolute values, the average of the multiple absolute values ​​can also be calculated, and upper and lower limits of the average value can be set to obtain a preset absolute value range, thereby determining the target absolute value outside the absolute value range, and determining the two pixels corresponding to the target absolute value as the inverted bright spot.

[0083] In another embodiment, the average electrical parameters of pixels in the same column can also be calculated. For each pixel in the same column, the absolute value of the difference between the pixel's electrical parameter and the average value is calculated. It is then determined whether the absolute value is greater than a preset threshold. If so, the pixel is determined to be a reversed bright spot; otherwise, it is determined to be a normal pixel. Figure 3B As shown, the electrical parameters of pixel G in rows 3, 4, and 5 of column 8 are 512, 806, and 511 respectively (this example only takes 3 rows of pixels; in actual applications, the entire column of pixels can be used), with an average value of 609. Obviously, the difference between pixel G in row 4 and the average value is greater. Therefore, pixel G in row 4 of column 8 can be identified as the inverted bright spot. Identifying the inverted bright spot by averaging the electrical parameters of pixels in the same column is a simpler calculation method and can quickly identify the inverted bright spot.

[0084] S305. When it is determined that both pixel point Nij and pixel point N(i-1)j are inverted bright spots, the type of inverted bright spot is determined based on the color attributes of the i-th column pixel point and the color attributes of the (i-1)-th column pixel point.

[0085] Here, pixel Nij represents the pixel in the i-th column and j-th row. When pixel Nij is determined to be a reversed bright spot, it can be known from the reason for the formation of reversed bright spots that pixel N(i-1)j or pixel N(i+1)j is also a reversed bright spot. When it is determined that both pixel Nij and pixel N(i-1)j are reversed bright spots, it can be determined whether one of pixel Nij and pixel N(i-1)j is a red pixel and the other is a green pixel. If so, the type of reversed bright spot is determined to be a cross-pixel unit reversed bright spot. If not, the type of reversed bright spot is determined to be an intra-pixel unit reversed bright spot. Intra-pixel unit reversed bright spots include red-white pixel reversed bright spots, white-blue pixel reversed bright spots, and blue-green pixel reversed bright spots.

[0086] like Figure 3BAs shown, a pixel unit P1 or P2 consists of red (R), white (W), blue (B), and green (G) pixels arranged from left to right. If two adjacent pixels in the same row are both inverted bright spots, and one pixel is a red pixel (R) and the other is a green pixel (G), then the type of the inverted bright spot is the type that spans pixel unit P1 and pixel unit P2, marked as 0. Otherwise, it belongs to one of RW (red-white pixel), WB (white-blue pixel), or BG (blue-green pixel) within the same pixel unit, marked as 1, 2, and 3 respectively. This realizes the determination of the type of inverted bright spot based on the color attributes of the i-th column and the (i-1)-th column, which is convenient for inspection personnel to distinguish the types and perform data statistical analysis based on the types. The analysis results can be used for process improvement or maintenance.

[0087] S306. Generate an error message box with a preset size.

[0088] Specifically, a square with a side length of 3 pixels or 3 pixels can be generated as a prompt box. Of course, a circular prompt box with a preset radius R can also be generated. This embodiment does not limit the shape and size of the abnormal prompt box.

[0089] S307. Display the error message box and the type of the inverted highlight centered on the inverted highlight.

[0090] Specifically, an abnormality warning box can be displayed on the screen in a preset color, and the pixel column i and pixel row j where the inverted bright spot is located can be obtained, so that the center of the abnormality warning box is directly opposite the intersection of the pixel column i and pixel row j where the inverted bright spot is located, and a mark indicating the type of inverted bright spot is displayed near the abnormality warning box so that the inspectors can review the inverted bright spot, or mark it with a marker pen according to the abnormality warning box.

[0091] This embodiment controls the display screen to display the detection image and acquires the electrical parameters of the pixels when the display screen displays the detection image. It also calculates the absolute value of the difference between the electrical parameters of two adjacent pixels in the same column to obtain multiple absolute values, and determines the inverted bright spot based on the multiple absolute values. When it is determined that both pixel Nij and pixel N(i-1)j are inverted bright spots, the type of inverted bright spot is determined based on the color attributes of the i-th column and the i-1-th column. An abnormal prompt box of a preset size is generated, and the abnormal prompt box and the type of inverted bright spot are further displayed centered on the inverted bright spot. This realizes the determination of whether a pixel is an inverted bright spot by the absolute value of the difference between the voltage, current and other electrical parameters of two adjacent pixels in the same column. If it is, a prompt box is generated and displayed to indicate the location of the inverted bright spot to the inspector. This solves the problem that it is difficult to detect inverted bright spots by the gray value of each pixel in the image after the display screen displays the image, improves the detection rate of inverted bright spots, avoids missing inverted bright spots, improves the quality of the display screen, and allows inspectors to easily review inverted bright spots by displaying the prompt box, thus improving the detection efficiency.

[0092] Example 3

[0093] Figure 4 This is a schematic diagram of a device for detecting inverted bright spots on a display screen, provided in Embodiment 3 of the present invention. Figure 4 As shown, the device for detecting inverted bright spots on a display screen includes:

[0094] The detection image display module 401 is used to control the display screen to display the detection image;

[0095] The electrical parameter acquisition module 402 is used to acquire the electrical parameters of the pixels when the display screen shows the detection image;

[0096] The inverted bright spot determination module 403 is used to determine the inverted bright spot based on the electrical parameters of pixels in the same column.

[0097] The error message display module 404 is used to generate an error message box and display the error message box with the inverted highlight as the center.

[0098] Optionally, the detection image display module 401 includes:

[0099] The compensation data acquisition unit is used to acquire the compensation data of the display screen;

[0100] An image display unit is used to control the display screen to display the detected image based on the compensation data.

[0101] Optionally, the inverted highlight determination module 403 includes:

[0102] The first absolute value calculation unit is used to calculate the absolute value of the difference between the electrical parameters of two adjacent pixels in the same column of pixels, and obtain multiple absolute values;

[0103] The first inversion bright spot determination unit is used to determine the inversion bright spot based on multiple absolute values.

[0104] Optionally, the first inverted bright spot determining unit includes:

[0105] The absolute value determination subunit is used to determine the absolute value ABSi(j, j-1) that is greater than a preset threshold from multiple absolute values, where the absolute value ABSi(j, j-1) is the absolute value of the difference between the electrical parameters of the pixel in the j-th row and the pixel in the (j-1)-th row of the i-th column.

[0106] The judgment subunit is used to determine whether the absolute value ABSi(j-1, j-2) is greater than a preset threshold. The absolute value ABSi(j-1, j-2) is the absolute value of the difference between the electrical parameters of the pixels in the (j-1)th row and the pixels in the (j-2)th row of the i-th column.

[0107] The inverted bright spot determination subunit is used to determine that pixel Ni(j-1) is an inverted bright spot, and pixel Ni(j-1) is the pixel in the (j-1)th row of the i-th column;

[0108] The inverted bright spot determination sub-unit is used to determine that pixel Nij is an inverted bright spot, where pixel Nij is the pixel in the j-th row of the i-th column.

[0109] Optionally, the inverted highlight determination module 403 includes:

[0110] The average value calculation unit is used to calculate the average value of the electrical parameters of pixels in the same column;

[0111] The second absolute value calculation unit is used to calculate the absolute value of the difference between the electrical parameter of each pixel and the average value for each pixel in the same column of pixels.

[0112] The judgment unit is used to determine whether the absolute value is greater than a preset threshold.

[0113] The inverted bright spot determination unit is used to determine whether a pixel is an inverted bright spot;

[0114] The normal pixel determination unit is used to determine whether a pixel is a normal pixel.

[0115] Optional, also includes:

[0116] The type determination module is used to determine the type of the inverted bright spot based on the color attributes of the i-th column of pixels and the i-1-th column of pixels when it is determined that both pixel point Nij and pixel point N(i-1)j are inverted bright spots.

[0117] The prompt display module 404 includes:

[0118] The error message generation unit is used to generate error message boxes of a preset size;

[0119] The alert display unit is used to display the type of error alert and the type of inverted highlight, centered on the inverted highlight.

[0120] Optionally, a pixel unit includes red pixels, white pixels, blue pixels, and green pixels arranged from left to right, and the type determination module includes:

[0121] The pixel point judgment unit is used to determine whether one of the pixels Nij and N(i-1)j is a red pixel and the other is a green pixel;

[0122] The first type determination unit is used to determine the type of the inverted bright spot as a cross-pixel unit inverted bright spot.

[0123] The second type determination unit is used to determine the type of the inverted bright spot as an inverted bright spot within a pixel unit. Inverted bright spots within a pixel unit include red-white pixel inverted bright spots, white-blue pixel inverted bright spots, and blue-green pixel inverted bright spots.

[0124] The apparatus for detecting inverted bright spots on a display screen provided in this embodiment of the invention can execute the method for detecting inverted bright spots on a display screen provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of executing the method.

[0125] Example 4

[0126] Figure 5 A schematic diagram of an electronic device 40 that can be used to implement embodiments of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0127] like Figure 5As shown, the electronic device 40 includes at least one processor 41 and a memory, such as a read-only memory (ROM) 42 or a random access memory (RAM) 43, communicatively connected to the at least one processor 41. The memory stores computer programs executable by the at least one processor. The processor 41 can perform various appropriate actions and processes based on the computer program stored in the ROM 42 or loaded into the RAM 43 from storage unit 48. The RAM 43 may also store various programs and data required for the operation of the electronic device 40. The processor 41, ROM 42, and RAM 43 are interconnected via a bus 44. An input / output (I / O) interface 45 is also connected to the bus 44.

[0128] Multiple components in electronic device 40 are connected to I / O interface 45, including: input unit 46, such as keyboard, mouse, etc.; output unit 47, such as various types of monitors, speakers, etc.; storage unit 48, such as disk, optical disk, etc.; and communication unit 49, such as network card, modem, wireless transceiver, etc. Communication unit 49 allows electronic device 40 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0129] Processor 41 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 41 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 41 performs the various methods and processes described above, such as the method of detecting inverted bright spots on a display screen.

[0130] In some embodiments, the method for detecting display screen inversion bright spots may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 48. In some embodiments, part or all of the computer program may be loaded and / or installed on electronic device 40 via ROM 42 and / or communication unit 49. When the computer program is loaded into RAM 43 and executed by processor 41, one or more steps of the method for detecting display screen inversion bright spots described above may be performed. Alternatively, in other embodiments, processor 41 may be configured to perform the method for detecting display screen inversion bright spots by any other suitable means (e.g., by means of firmware).

[0131] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0132] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0133] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0134] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device for displaying information to the user (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor); and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0135] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0136] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0137] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0138] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for detecting inverted bright spots on a display screen, characterized in that, include: The system controls the display screen to show the detection image; when displaying the detection image, the system sequentially controls the pixels in the corresponding columns to display the corresponding colors. Obtain the electrical parameters of the pixels when the display screen shows the detected image; The inverted bright spot is determined based on the electrical parameters of the pixels in the same column. The inverted bright spot is a pixel that is short-circuited with the adjacent pixels in the same row and is lit up when the adjacent pixels are lit. An error message box is generated and displayed centered on the inverted highlight. The step of determining the inverted bright spot based on the electrical parameters of pixels in the same column includes: Calculate the absolute value of the difference in electrical parameters between two adjacent pixels in the same column, and obtain multiple absolute values; Determine the absolute value ABSi(j, j-1) that is greater than a preset threshold from multiple absolute values, where the absolute value ABSi(j, j-1) is the absolute value of the difference between the electrical parameters of the pixel in the j-th row and the pixel in the (j-1)-th row of the i-th column. Determine whether the absolute value ABSi(j-1, j-2) is greater than a preset threshold. The absolute value ABSi(j-1, j-2) is the absolute value of the difference between the electrical parameters of the pixels in the (j-1)th row and the pixels in the (j-2)th row of the i-th column. If so, determine that pixel Ni(j-1) is the inverted bright spot, where pixel Ni(j-1) is the pixel in the (j-1)th row of the i-th column; If not, determine that pixel Nij is the inverted bright spot, where pixel Nij is the pixel in the j-th row of the i-th column.

2. The method for detecting inverted bright spots on a display screen according to claim 1, characterized in that, The control display screen displays the detected image, including: Obtain the compensation data of the display screen; The display screen is controlled to show the detected image based on the compensation data.

3. The method for detecting inverted bright spots on a display screen according to claim 1, characterized in that, Also includes: When it is determined that both pixel point Nij and pixel point N(i-1)j are inverted bright spots, the type of the inverted bright spot is determined based on the color attributes of the i-th column of pixels and the color attributes of the (i-1)-th column of pixels; The process of generating an error message box and displaying the error message box centered on the inverted highlight includes: Generate an error message box of a preset size; The error message box and the type of the inverted highlight are displayed centered on the inverted highlight.

4. The method for detecting inverted bright spots on a display screen according to claim 3, characterized in that, A pixel unit includes red, white, blue, and green pixels arranged from left to right. When it is determined that pixels Nij and N(i-1)j are both inverted bright spots, the type of the inverted bright spot is determined based on the color attributes of the i-th column of pixels and the color attributes of the (i-1)-th column of pixels, including: Determine whether one of the pixels Nij and N(i-1)j is a red pixel and the other is a green pixel; If so, determine the type of the inverted bright spot as a cross-pixel unit inverted bright spot; If not, the type of inverted bright spot is determined to be an inverted bright spot within a pixel unit, which includes red-white pixel inverted bright spots, white-blue pixel inverted bright spots, and blue-green pixel inverted bright spots.

5. A device for detecting inverted bright spots on a display screen, characterized in that, include: The detection image display module is used to control the display screen to display the detection image; wherein, when displaying the detection image, the corresponding columns of pixels are sequentially controlled to display the corresponding colors; An electrical parameter acquisition module is used to acquire the electrical parameters of pixels when the display screen shows the detection image; The inverted bright spot determination module is used to determine the inverted bright spot based on the electrical parameters of the pixels in the same column. The inverted bright spot is a pixel that is short-circuited with the adjacent pixels in the same row and is lit when the adjacent pixels are lit. The prompt box display module is used to generate an abnormal prompt box and display the abnormal prompt box with the inverted bright spot as the center; The module for determining the inverted bright spot includes: The first absolute value calculation unit is used to calculate the absolute value of the difference between the electrical parameters of two adjacent pixels in the same column of pixels, and obtain multiple absolute values; The first reversal highlight determination unit includes: The absolute value determination subunit is used to determine the absolute value ABSi(j, j-1) that is greater than a preset threshold from multiple absolute values, where the absolute value ABSi(j, j-1) is the absolute value of the difference between the electrical parameters of the pixel in the j-th row and the pixel in the (j-1)-th row of the i-th column. The judgment subunit is used to determine whether the absolute value ABSi(j-1, j-2) is greater than the preset threshold. The absolute value ABSi(j-1, j-2) is the absolute value of the difference between the electrical parameters of the pixel in the (j-1)th row and the pixel in the (j-2)th row in the i-th column. The inverted bright spot determination subunit is used to determine that pixel Ni(j-1) is an inverted bright spot, and pixel Ni(j-1) is the pixel in the (j-1)th row of the i-th column; The inverted bright spot determination sub-unit is used to determine that pixel Nij is an inverted bright spot, where pixel Nij is the pixel in the j-th row of the i-th column.

6. An electronic device, characterized in that, The electronic device includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, which enables the at least one processor to perform the method for detecting inverted bright spots on a display screen as described in any one of claims 1-4.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed by a processor, implement the method for detecting inverted bright spots on a display screen as described in any one of claims 1-4.

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