Display module, display device and detection method of display module

Abstract

The application relates to a display module, a display device and a detection method of the display module. The display module comprises a display panel and a detection assembly. The display panel comprises a plurality of pixel areas. The detection assembly comprises a plurality of first signal lines, a plurality of second signal lines and a detection processor. Capacitors are formed between the first signal lines and the second signal lines in the pixel areas. The detection processor is connected with the first signal lines and also connected with the second signal lines. The detection processor is used for detecting the capacitance values of the capacitors formed between the first signal lines and the second signal lines and performing fracture detection on the display panel according to the capacitance values. The display module provided by the application can be used to detect the fracture phenomenon existing in the pixel areas of the display panel.

Description

Testing methods for display modules, display devices, and display modules Technical Field

[0001] This application relates to the field of display technology, and in particular to a display module, display device, and a method for testing display modules. Background Technology

[0002] One of the advantages of OLED (Organic Light Emitting Diode) display substrates is their flexibility. By fabricating OLED devices on a flexible substrate, bendable display devices can be achieved. With the increasing popularity of wearable devices, higher demands have been placed on the stretchability of OLED flexible panels, leading to the development of display panels capable of screen stretching.

[0003] Due to the nature of stretched display panels, the film layers within them are prone to cracking, leading to screen breakage. Therefore, a solution for detecting screen breakage is urgently needed. Summary of the Invention

[0004] Therefore, it is necessary to provide a method for testing display modules, display devices, and display modules to address the aforementioned technical problems.

[0005] In a first aspect, one embodiment of this application provides a display module, which includes a display panel and a detection component. The display panel includes multiple pixel regions, and the detection component includes multiple first signal lines, multiple second signal lines, and a detection processor. A capacitor is formed between the first signal lines and the second signal lines within the pixel regions.

[0006] The detection processor is connected to each first signal line and also to each second signal line to detect the capacitance value of the capacitor formed between the first signal line and the second signal line, and to perform breakage detection on the display panel based on the capacitance value.

[0007] In one embodiment, the display panel includes a plurality of pixel islands, each of which is located in a corresponding pixel region. A first signal line and a second signal line located in the pixel region of the display panel are respectively disposed in different metal layers. The orthographic projections of the first signal line and the second signal line in the corresponding pixel island intersect.

[0008] Optionally, the pixel islands correspond one-to-one with the pixel regions;

[0009] Optionally, the first signal line and the second signal line located in the non-pixel area of ​​the display panel are respectively disposed in the same metal layer; or, the first signal line and the second signal line located in the non-pixel area of ​​the display panel are respectively disposed in different metal layers.

[0010] Optionally, the display panel includes a stretchable display panel, and the display panel also includes a system in which two adjacent pixel islands are connected by the wire.

[0011] In one embodiment, each first signal line is disposed on a corresponding metal layer along a first direction, and each second signal line is disposed on a corresponding metal layer along a second direction, wherein the first direction and the second direction intersect.

[0012] Optionally, the first direction and the second direction are perpendicular to each other.

[0013] In one embodiment, a plurality of pixel islands are arranged in an array, the number of first signal lines extending along a first direction is the same as the number of pixel islands arranged along a second direction, and the number of second signal lines extending along the second direction is the same as the number of pixel islands arranged along the first direction.

[0014] or,

[0015] Multiple pixel islands are arranged in an array. The number of first signal lines extending along the first direction is less than the number of pixel islands arranged along the second direction, and the number of second signal lines extending along the second direction is equal to the number of pixel islands arranged along the first direction.

[0016] In one embodiment, a predetermined number of first signal lines are interconnected to form a first detection terminal, and a predetermined number of second signal lines are interconnected to form a second detection terminal; a detection processor is connected to the first and second detection terminals; the predetermined number is an integer greater than or equal to 2;

[0017] or,

[0018] Each first signal line is connected to the detection processor, and each second signal line is connected to the detection processor.

[0019] Secondly, one embodiment of this application provides a display device including the detection display module as described in the first aspect above.

[0020] Thirdly, one embodiment of this application also provides a method for detecting a display module, the method being applied to the display module as provided in the first aspect, the method comprising:

[0021] Detect the capacitance value of the capacitance formed between the first signal line and the second signal line;

[0022] The display panel in the display module is broken based on the capacitance value.

[0023] In one embodiment, the step of detecting the capacitance value of the capacitor formed between the first signal line and the second signal line includes:

[0024] Acquire the first detection signal on each first signal line, and acquire the second detection signal on each second signal line;

[0025] Each first detection signal is combined with each second detection signal to obtain a first signal combination set;

[0026] For each first signal combination in the first signal combination set, the capacitance value of the capacitor formed by the first signal line and the second signal line corresponding to the first signal combination is determined based on the first detection signal and the second detection signal in the first signal combination.

[0027] In one embodiment, the step of detecting the capacitance value of the capacitor formed between the first signal line and the second signal line includes:

[0028] Acquire a third detection signal from a first detection terminal formed by interconnecting a preset number of first signal lines, and acquire a fourth detection signal from a second detection terminal formed by interconnecting a preset number of second signal lines.

[0029] The third detection signal is combined with the fourth detection signal to obtain the second signal combination set;

[0030] For each second signal combination in the second signal combination set, the capacitance value of the detection area formed by the first signal line and the second signal line corresponding to the second signal combination is determined based on the third detection signal and the fourth detection signal in the second signal combination.

[0031] In one embodiment, the step of detecting breakage of the display panel in the display module based on the capacitance value includes:

[0032] Compare the capacitance value with the preset capacitance range;

[0033] If the capacitance value is within the preset capacitance range, it is determined that the pixel area on the display panel corresponding to the capacitance value has not been broken.

[0034] If the capacitance value is outside the preset capacitance range, it is determined that the pixel area on the display panel corresponding to the capacitance value has broken.

[0035] This application provides a display module, a display device, and a method for detecting the display module. The display module includes a display panel and a detection component. The display panel includes multiple pixel areas. The detection component includes multiple first signal lines, multiple second signal lines, and a detection processor. A capacitor is formed between the first signal lines and second signal lines within the pixel areas. The detection processor is connected to each first signal line and also to each second signal line, and is used to detect the capacitance value of the capacitor formed between the first signal lines and second signal lines, and to perform breakage detection on the display panel based on the capacitance value. In this embodiment, a capacitor can be formed between the first signal lines and second signal lines within the pixel areas. By detecting the capacitance value, breakage detection of the display panel can be performed. Furthermore, the capacitor areas forming the capacitors between the first signal lines and second signal lines are correspondingly arranged with the pixel areas, enabling breakage detection of the corresponding pixel areas of the first signal lines and second signal lines. Moreover, when a breakage is detected in the display panel, the specific pixel area where the breakage occurs can be determined, facilitating subsequent targeted repair. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of this application, the drawings used in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 is a schematic diagram of the structure of a display module provided in one embodiment;

[0038] Figure 2 is a schematic diagram of the structure of a display module provided in one embodiment;

[0039] Figure 3 is a partial structural schematic diagram of a display module provided in one embodiment;

[0040] Figure 4 is a schematic diagram of the structure of a display module provided in another embodiment;

[0041] Figure 5 is a schematic diagram of the structure of a display module provided in another embodiment;

[0042] Figure 6 is a schematic diagram of the structure of a display module provided in another embodiment;

[0043] Figure 7 is a schematic flowchart of the detection method provided in one embodiment;

[0044] Figure 8 is a flowchart illustrating the steps of a detection method provided in another embodiment;

[0045] Figure 9 is a flowchart illustrating the steps of a detection method provided in another embodiment;

[0046] Figure 10 is a flowchart illustrating the steps of a detection method provided in another embodiment.

[0047] Explanation of reference numerals in the attached figures:

[0048] 10. Detection component; 20. Display panel; 21. Pixel area; 22. Wire; 23. Pixel island; 24. Capacitor area; 211. Row pixel area; 212. Column pixel area; 100. First signal line; 200. Second signal line; 300. Detection processor; 101. First detection end; 101a. First sub-detection end; 101b. Second sub-detection end; 102. Second detection end; 102a. Third sub-detection end; 102b. Fourth sub-detection end. Detailed Implementation

[0049] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0050] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, this does not indicate any order, quantity, or importance, but is merely used to distinguish different components. These terms are used only to distinguish one element from another. For example, without departing from the scope of this application, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. Words such as “comprising” or “including” mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0052] Active-matrix organic light-emitting diode (AMOLED) display panels are highly favored due to their wide viewing angles, ultra-high contrast ratios, and fast response times. One advantage of OLED (Organic Light Emitting Diode) display substrates is their flexibility; by fabricating OLED devices on a flexible substrate, bendable display panels can be achieved. With the increasing popularity of wearable devices, higher demands have been placed on the stretchability of flexible OLED panels, leading to the development of display panels capable of screen stretching.

[0053] Due to the unique structure of stretched OLED display panels, many areas of the overall structure are hollowed out, making the internal structure of the display panel prone to breakage. Therefore, there is an urgent need for a solution to detect screen breakage, namely, PCD (Panel Crack Detection).

[0054] Please refer to Figures 1-3. One embodiment of this application provides a display module, which includes a display panel 20 and a detection component 10. The display panel 20 includes a plurality of pixel regions 21. The detection component 10 includes a plurality of first signal lines 100, a plurality of second signal lines 200 and a detection processor 300. A capacitor is formed between the first signal lines 100 and the second signal lines 200 within the pixel regions 21.

[0055] The detection processor 300 is connected to each of the first signal lines 100 and also to each of the second signal lines 200, for detecting the capacitance value of the capacitor formed between the first signal lines 100 and the second signal lines 200, and for detecting breakage of the display panel 20 based on the capacitance value.

[0056] The display panel 20 has an island-bridge structure, as shown in Figure 2. The display panel 20 includes multiple pixel regions 21, multiple pixel islands 23, and multiple wires 22. Pixel regions 21 are the areas enclosed by the dashed boxes in Figure 2. Each pixel island 23 is located within its corresponding pixel region 21. Multiple wires 22 are located in the bridge region, and adjacent pixel islands 23 are electrically connected via wires 22. Alternatively, one pixel island 23 may correspond to one pixel region 21, meaning a one-to-one correspondence between pixel islands 23 and pixel regions 21 is possible; alternatively, some pixel regions 21 may not have corresponding pixel islands 23. This embodiment does not restrict the correspondence between pixel islands 23 and pixel regions 21. Figure 3 is a schematic diagram of the arrangement of the first signal line 100 and the second signal line 200 corresponding to a pixel region 21. The rectangular area in the middle of Figure 3 is the capacitor region 24 where the capacitor formed between the first signal line 100 and the second signal line 200 is located. The lines in Figure 3 other than the first signal line 100 and the second signal line 200 are the wires 22 between the pixel island 23 and adjacent pixel islands 23.

[0057] The detection component 10 includes multiple first signal lines 100 and multiple second signal lines 200, each corresponding to a plurality of pixel regions 21 in the display panel 20. That is, first signal lines 100 and second signal lines 200 are disposed corresponding to pixel regions 21, and a capacitance can be formed between the first signal lines 100 and second signal lines 200 in pixel regions 21. In other words, the orthographic projections of the first signal lines 100 and second signal lines 200 onto the plane where the pixel island 23 is located intersect and are located within the pixel region 21.

[0058] The number of first signal lines 100 and second signal lines 200 in the detection component 10 can be the same or different. This embodiment does not limit the specific number of first signal lines 100 and second signal lines 200, and users can set them according to actual application needs.

[0059] The detection component 10 also includes a detection processor 300. The detection processor 300 has a first terminal and a second terminal. The first terminal of the detection processor 300 is connected to multiple first signal lines 100 and can acquire signals transmitted on the first signal lines 100. The second terminal of the detection processor 300 is connected to multiple second signal lines 200 and can acquire signals transmitted on the second signal lines 200. The detection processor 300 may include a control chip in the display module, or it may include devices for detecting the current and voltage of the first signal lines 100 and the second signal lines 200. This embodiment does not limit the type or structure of the detection processor 300, as long as it can achieve its function.

[0060] The detection processor 300 is used to detect the capacitance value of the distributed capacitance formed by the first signal line 100 and the second signal line 200. After acquiring the capacitance value, the detection processor 300 analyzes the capacitance value to perform breakage detection on the pixel area 21 on the display panel 20, that is, it can determine whether the pixel area 21 corresponding to the capacitance value in the display panel 20 has broken. This embodiment does not limit the specific method by which the detection processor 300 performs breakage detection on the display panel 20 based on the capacitance value, as long as its function can be achieved.

[0061] In an optional embodiment, the detection processor 300 stores a preset capacitance range. After acquiring a capacitance value, the detection processor 300 compares the capacitance value with the preset capacitance range. If the capacitance value is within the preset capacitance range, it is determined that the pixel region 21 corresponding to the capacitance value is not broken; if the capacitance value is outside the preset capacitance range, it is determined that the pixel region 21 corresponding to the capacitance value is broken. The preset capacitance range differs for different numbers of pixel regions 21. That is, the detection processor 300 detects the preset capacitance range corresponding to the capacitance value of one pixel region 21, which is different from the detection processor 300 detecting the preset capacitance range corresponding to the capacitance values ​​of four pixel regions 21.

[0062] The display module provided in this embodiment includes a display panel 20 and a detection component 10. The display panel 20 includes multiple pixel regions 21. The detection component 10 includes multiple first signal lines 100, multiple second signal lines 200, and a detection processor 300. A capacitor is formed between the first signal lines 100 and the second signal lines 200 within the pixel regions 21. The detection processor 300 is connected to each of the first signal lines 100 and also to each of the second signal lines 200, and is used to detect the capacitance value of the capacitor formed between the first signal lines 100 and the second signal lines 200, and to perform breakage detection on the display panel 20 based on the capacitance value. In this embodiment, a distributed capacitor can be formed between the first signal lines 100 and the second signal lines 200 within the pixel regions 21. By detecting the capacitance value of this distributed capacitor, breakage detection can be performed on the display panel 20. Furthermore, the capacitor region 24 forming the capacitor between the first signal lines 100 and the second signal lines 200 is correspondingly arranged with the pixel regions 21, enabling breakage detection on the pixel regions 21 corresponding to the first signal lines 100 and the second signal lines 200. Furthermore, if a break in the display panel 20 is detected, the specific pixel area 21 where the break exists can be identified, facilitating targeted repairs later.

[0063] In one embodiment, the first signal line 100 and the second signal line 200 located in the pixel region 21 of the display panel 20 are respectively disposed in different metal layers;

[0064] The first signal line 100 and the second signal line 200 located in the non-pixel area of ​​the display panel 20 are respectively disposed in the same metal layer; or, the first signal line 100 and the second signal line 200 located in the non-pixel area of ​​the display panel 20 are respectively disposed in different metal layers.

[0065] The display panel 20 also includes multiple metal layers, and includes pixel areas 21 and non-pixel areas. The first signal line 100 and the second signal line 200 can be disposed within two adjacent metal layers or within two spaced-apart metal layers. These metal layers can be film layers adjacent to the pixel island 23 in the display panel 20, or film layers within the pixel island 23. This embodiment does not limit the specific metal layers on which the first signal line 100 and the second signal line 200 are disposed, as long as a distributed capacitance can be formed between the first signal line 100 and the second signal line 200 in the pixel area 21.

[0066] In one embodiment, the first signal line 100 and the second signal line 200 in the non-pixel region are respectively disposed on the same metal layer. In other words, when the first signal line 100 and the second signal line 200 extend from the same metal layer in the non-pixel region to the pixel region 21, either the first signal line 100 or the second signal line 200 will cross to another metal layer, so that the first signal line 100 and the second signal line 200 in the pixel region 21 are respectively disposed on different metal layers. That is, the first signal line 100 and the second signal line 200 in the pixel region 21 form a capacitor through a bridge structure.

[0067] In another embodiment, the first signal line 100 and the second signal line 200 in the non-pixel area can be respectively disposed on different metal layers. That is, in the pixel area 21 and the non-pixel area of ​​the display panel 20, the first signal line 100 and the second signal line 200 are respectively disposed on different metal layers. This eliminates the need for cross-layering in the pixel area 21, and the first signal line 100 and the second signal line 200 can form a capacitor in the pixel area 21, which is convenient for configuration.

[0068] The above embodiments provide configuration methods for the first signal line 100 and the second signal line 200 in the pixel region 21 and non-pixel regions. In the pixel region 21, the first signal line 100 and the second signal line 200 are respectively disposed on different metal layers. In the non-pixel region, the first signal line 100 and the second signal line 200 can be disposed on different metal layers or on the same metal layer. Users can configure these according to their actual applications, making the display module more practical.

[0069] In one embodiment, the display panel 20 is a stretchable panel, that is, the substrate in the display panel 20 is a flexible substrate.

[0070] In this embodiment, the detection component 10 can detect whether the display panel 20 has broken, thereby improving the reliability and practicality of the stretchable display panel.

[0071] In one embodiment, as shown in Figures 1 and 4, each first signal line 100 is disposed on a corresponding metal layer along a first direction, and each second signal line 200 is disposed on a corresponding metal layer along a second direction, wherein the first direction and the second direction intersect.

[0072] Optionally, the first direction and the second direction are perpendicular to each other. Multiple first signal lines 100 are arranged parallel to each other along the first direction (X direction), and multiple second signal lines 200 are arranged parallel to each other along the second direction (Y direction). Each first signal line 100 and each second signal line 200 are perpendicular to each other, so that the first signal lines 100 and the second signal lines 200 can form a capacitor.

[0073] In one embodiment, as shown in FIG4, a plurality of pixel islands 23 are arranged in an array, the number of first signal lines 100 extending along the first direction is the same as the number of pixel islands 23 arranged along the second direction, and the number of second signal lines 200 extending along the second direction is the same as the number of pixel islands 23 arranged along the first direction.

[0074] The display panel 20 contains a plurality of pixel islands 23 arranged in an array to form a pixel array. This pixel array includes row pixel regions 211, corresponding to the regions of the pixel islands 23 arranged along a first direction, and column pixel regions 212, corresponding to the regions of the pixel islands 23 arranged along a second direction. The number of first signal lines 100 extending along the first direction in the detection component 10 is the same as the number of pixel islands 23 arranged along the second direction. In other words, the number of first signal lines 100 extending along the first direction is the same as the number of row pixel regions 211, meaning that a corresponding first signal line 100 is provided in each row pixel region 211. The number of second signal lines 200 extending along the second direction in the detection component 10 is the same as the number of pixel islands 23 arranged along the first direction. In other words, the number of second signal lines 200 extending along the second direction is the same as the number of column pixel regions 212, meaning that a corresponding second signal line 200 is provided in each column pixel region 212. In other words, the orthographic projections of the first signal line 100 and the second signal line 200 provided in each pixel area 21 of the display panel 20 on the corresponding pixel island 23 intersect. In this way, the first signal line 100 and the second signal line 200 located in different metal layers within the pixel area 21 can form a capacitor. By detecting the capacitance value of this capacitor, it is possible to detect whether a break has occurred in each pixel area 21.

[0075] In this embodiment, the number of first signal lines 100 extending along the first direction is the same as the number of pixel islands 23 arranged along the second direction, and the number of second signal lines 200 extending along the second direction is the same as the number of pixel islands 23 arranged along the first direction. This means that each pixel region 21 is provided with a first signal line 100 and a second signal line 200 capable of forming a capacitor. This enables breakage detection of each pixel region 21, making the detection component 10 more practical.

[0076] In one embodiment, as shown in FIG5, a plurality of pixel islands 23 are arranged in an array, the number of first signal lines 100 extending along the first direction is less than the number of pixel islands 23 arranged along the second direction, and the number of second signal lines 200 extending along the second direction is equal to the number of pixel islands 23 arranged along the first direction.

[0077] The pixel array formed by multiple pixel islands 23 includes row pixel regions 211 (regions corresponding to the multiple pixel islands 23 arranged along a first direction) and column pixel regions 212 (regions corresponding to the multiple pixel islands 23 arranged along a second direction). The number of first signal lines 100 extending along the first direction in the detection component 10 is less than the number of pixel islands 23 arranged along the second direction. In other words, the number of first signal lines 100 extending along the first direction is less than the number of row pixel regions 211, meaning that the first signal lines 100 can be spaced out in the corresponding row pixel regions 211. The number of second signal lines 200 extending along the second direction in the detection component 10 is less than the number of pixel islands 23 arranged along the first direction. In other words, the number of second signal lines 200 extending along the second direction is less than the number of column pixel regions 212, meaning that the second signal lines 200 can be spaced out in the corresponding column pixel regions 212. The spaced-out arrangement of the multiple first signal lines 100 can be spaced out between two adjacent first signal lines 100, or at least two first signal lines 100 can be adjacent to each other and spaced out from at least two other adjacent first signal lines 100. Similarly, the multiple second signal lines 200 can be spaced apart between two adjacent second signal lines 200, or at least two second signal lines 200 can be adjacent to each other and spaced apart from at least two other adjacent second signal lines 200.

[0078] In this configuration, the orthographic projections of the first signal line 100 and the second signal line 200 on the pixel island 23 intersect, thus allowing the first signal lines 100 and 200 located on different metal layers on the pixel island 23 to form a capacitor. As shown in Figure 5 (the wires 22 between pixel regions 21 are not shown), the number of row pixel regions 211 in the pixel array is 7, and the number of first signal lines 100 is 4, with each line spaced apart. Correspondingly, the number of column pixel regions 212 in the pixel array is 7, and the number of second signal lines 200 is 4, with each line spaced apart.

[0079] In this embodiment, the number of first signal lines 100 extending along the first direction is less than the number of pixel islands 23 arranged along the second direction, and the number of second signal lines 200 extending along the second direction is less than the number of pixel islands 23 arranged along the first direction. This not only enables breakage detection of the display panel 20 but also improves detection efficiency. Furthermore, the manufacturing cost of such a detection component 10 is relatively low.

[0080] The above embodiments provide two configuration methods for the first signal line 100, the second signal line 200, and the multiple pixel islands 23. Users can choose according to their actual applications, which can improve the practicality of the display module.

[0081] In one embodiment, as shown in FIG6, a preset number of first signal lines 100 are interconnected to form a first detection terminal 101, and a preset number of second signal lines 200 are interconnected to form a second detection terminal 102; the detection processor 300 is connected to the first detection terminal 101 and the second detection terminal 102, and the preset number is an integer greater than or equal to 2.

[0082] The preset number can be pre-set by the user according to the actual application. The preset number of first signal lines 100 are interconnected to form a first detection terminal 101, making the preset number of first signal lines 100 electrically conductive, allowing the detection processor 300 to acquire the signals of the preset number of first signal lines 100. The preset number of second signal lines 200 are interconnected to form a second detection terminal 102, making the preset number of second signal lines 200 electrically conductive, allowing the detection processor 300 to acquire the signals of the preset number of second signal lines 200. The pixel region 21 corresponding to the preset number of first signal lines 100 is the same as the pixel region 21 corresponding to the preset number of second signal lines 200. Thus, by connecting to the first detection terminal 101 and the second detection terminal 102, the detection processor 300 can detect the capacitance value of the detection region formed by the preset number of first signal lines 100 and the preset number of second signal lines 200, thereby enabling breakage detection of the pixel region 21.

[0083] In an optional embodiment, after a predetermined number of first signal lines 100 are interconnected to form a first detection terminal 101, there exists an individual first signal line 100. Similarly, after a predetermined number of second signal lines 200 are interconnected to form a second detection terminal 102, there exists an individual second signal line 200. As shown in FIG6, it is assumed that the first detection terminal 101 formed by interconnecting a predetermined number of first signal lines 100 may include a first sub-detection terminal 101a and a second sub-detection terminal 101b, and the second detection terminal 102 formed by interconnecting a predetermined number of second signal lines 200 may include a third sub-detection terminal 102a and a fourth sub-detection terminal 102b. The capacitance value of the detection area A formed by the first signal line 100 corresponding to the first sub-detection terminal 101a and the second signal line 200 corresponding to the third detection terminal 102a can be detected by the signals received through the first sub-detection terminal 101a and the third sub-detection terminal 102a. The capacitance value of the detection area B formed by the first sub-detection terminal 101a and the second signal line 200 corresponding to the first sub-detection terminal 101a and the fourth sub-detection terminal 102b can be detected by the signals received from the second sub-detection terminal 101b and the third sub-detection terminal 102a. The capacitance value of the detection area C formed by the first signal line 100 corresponding to the second sub-detection terminal 101b and the second signal line 200 corresponding to the third sub-detection terminal 102a can be detected by the signals received from the second sub-detection terminal 101b and the fourth sub-detection terminal 102b. The capacitance value of the detection area D formed by the first signal line 100 corresponding to the second sub-detection terminal 101b and the second signal line 200 corresponding to the fourth sub-detection terminal 102b can be detected by the signals received from the second sub-detection terminal 101b and the fourth sub-detection terminal 102b. By receiving signals from the individual first signal line 100 and the individual second signal line 200, the capacitance value of the pixel area 21 corresponding to the area where the individual first signal line 100 and the individual second signal line 200 form capacitance can be detected.

[0084] In this embodiment, a preset number of first signal lines 100 are interconnected to form a first detection terminal 101, and a preset number of second signal lines 200 are interconnected to form a second detection terminal 102. The detection processor 300 performs breakage detection on the capacitance value of the detection area formed by the preset number of first signal lines 100 and the preset number of second signal lines 200 through the first detection terminal 101 and the second detection terminal 102, which can improve the efficiency of breakage detection.

[0085] In one embodiment, each first signal line 100 is connected to the detection processor 300, and each second signal line 200 is connected to the detection processor 300.

[0086] In other words, the detection processor 300 can receive signals from each first signal line 100 and each second signal line 200. Thus, in the region where each pixel island is located, the first signal lines 100 and second signal lines 200 located in different metal layers can form a capacitor, enabling the detection processor 300 to perform breakage detection on each pixel region 21.

[0087] In this embodiment, by connecting each first signal line 100 to the detection processor 300 and each second signal line 200 to the detection processor 300, the capacitance of each pixel region 21 through which the first signal line 100 and the second signal line 200 pass can be determined, thereby realizing the breakage detection of each pixel region 21 and improving the practicality of the display module.

[0088] One embodiment of this application also provides a display device, which includes the display module provided in the above embodiments.

[0089] The display device provided in this application includes a display module, and the display device has all the beneficial effects of the display module, which will not be repeated here.

[0090] The display device can be a laptop computer, mobile phone, wireless device, personal digital assistant (PDA), handheld or portable computer, GPS receiver / navigator, camera, MP4 video player, camcorder, game console, watch, clock, calculator, TV monitor, flat panel display, computer monitor, car display (e.g., odometer display), navigator, cockpit controller and / or display, camera view display (e.g., display of a rearview camera in a vehicle), electronic photograph, electronic billboard or sign, projector, etc.

[0091] Please refer to Figure 7. One embodiment of this application provides a detection method for a display module, which can be applied to the display module provided in the above embodiment. This embodiment specifically describes the application of this detection method to a detection processor in a display module. The steps of the detection method include:

[0092] Step 700: Detect the capacitance value of the capacitor formed between the first signal line and the second signal line.

[0093] The detection processor can acquire signals from a first signal line and a second signal line located in a pixel area on the display panel, and determine the capacitance value of the distributed capacitance formed by the first and second signal lines based on the acquired signals. Different detection processors use different methods to detect the capacitance value, and this embodiment does not limit this method.

[0094] In an optional embodiment, the detection processor can calculate the capacitance value based on the current and voltage between the first signal line and the second signal line.

[0095] Step 710: Perform a breakage detection on the display panel based on the capacitance value.

[0096] After determining the capacitance value of the capacitor formed by the first signal line and the second signal line, the detection processor detects whether a break has occurred in the pixel area of ​​the display panel based on this capacitance value. This embodiment does not limit the specific method for detecting breakage in the display panel based on the capacitance value, as long as the function can be achieved.

[0097] In an optional embodiment, the capacitance value can be detected using a pre-set detection model. The capacitance value is input into the detection model, which then detects the capacitance value and outputs a corresponding detection result. The detection result includes whether the pixel region corresponding to the capacitance value exhibits a breakage, or whether the pixel region corresponding to the capacitance value does not exhibit a breakage.

[0098] The detection method provided in this application detects the capacitance value of the capacitor formed between the first signal line and the second signal line; and performs breakage detection on the display panel based on this capacitance value. In this embodiment, the breakage detection of the display panel can be performed solely by measuring the capacitance value of the capacitor formed between the first and second signal lines, making the detection method simple and quick. Furthermore, since the first and second signal lines form a capacitor in the pixel area of ​​the display panel, determining the breakage of the display panel by measuring the capacitance value allows for the identification of the specific pixel area where the breakage occurred, thereby improving the practicality of the detection method.

[0099] In one embodiment, as shown in FIG8, one implementation involves detecting the capacitance value of the capacitance formed between the first signal line and the second signal line, the steps of which include:

[0100] Step 800: Obtain the first detection signal on each first signal line and the second detection signal on each second signal line.

[0101] The detection processor is connected to each first signal line and each second signal line, and can acquire a first detection signal on each first signal line and a second detection signal on each second signal line. The first detection signal can be a current or voltage on the first signal line, and the second detection signal can be a current or voltage on the second signal line.

[0102] Step 810: Combine each first detection signal with each second detection signal to obtain a first signal combination set.

[0103] After acquiring multiple first detection signals and multiple second detection signals, the detection processor combines each first detection signal and each second detection signal to obtain a first signal combination set. The first signal combination set includes multiple combination sets composed of any one first detection signal and all the second detection signals.

[0104] Suppose that the first detection signal obtained includes signal a and signal b, the second detection signal obtained includes signal c and signal d, and the first signal combination set includes (signal a, signal c), (signal a, signal d), (signal b, signal c), and (signal b, signal d).

[0105] Step 820: For each first signal combination in the first signal combination set, determine the capacitance value of the capacitor formed by the first signal line and the second signal line corresponding to the first signal combination based on the first detection signal and the second detection signal in the first signal combination.

[0106] After determining the first signal combination set, the detection processor selects any one first signal combination from the first signal combination set. Based on the first detection signal and the second detection signal in the first signal combination, the capacitance value of the capacitor formed by the first signal line and the second signal line corresponding to the first signal combination can be determined. By repeating the above steps, the capacitance value of the capacitor formed by the first signal line and the second signal line corresponding to all first signal combinations in the first signal combination set can be determined.

[0107] In this embodiment, a first detection signal is acquired on each first signal line, and a second detection signal is acquired on each second signal line. The first and second detection signals are combined to obtain a first signal combination set. For each first signal combination in the first signal combination set, the capacitance value of the capacitance formed by the first and second signal lines corresponding to the first signal combination is determined based on the first and second detection signals of the first signal combination. This allows the capacitance of each pixel region traversed by the first and second signal lines to be determined, thereby enabling breakage detection for each pixel region.

[0108] In one embodiment, as shown in FIG9, another implementation involves detecting the capacitance value of the capacitance formed between the first signal line and the second signal line, the steps of which include:

[0109] Step 900: Obtain the third detection signal of the first detection terminal formed by interconnecting a preset number of first signal lines, and obtain the fourth detection signal of the second detection terminal formed by interconnecting a preset number of second signal lines.

[0110] The description of the first detection terminal formed by interconnecting a preset number of first signal lines and the second detection terminal formed by interconnecting a preset number of second signal lines can be found in the detailed description of the above embodiments.

[0111] The detection processor can acquire a third detection signal from the first detection terminal and a fourth detection signal from the second detection terminal. The third detection signal can be either current or voltage, and the fourth detection signal can also be either current or voltage.

[0112] Step 910: Combine each third detection signal with each fourth detection signal to obtain a second signal combination set.

[0113] After acquiring multiple third detection signals and multiple fourth detection signals, the detection processor combines each third detection signal with each fourth detection signal to obtain a second signal combination set. The second signal combination set includes multiple combination sets composed of any one third detection signal and all the fourth detection signals.

[0114] The description of the second signal combination set can be referred to the description of the first signal combination set in the above embodiments, and will not be repeated here.

[0115] Step 920: For each second signal combination in the second signal combination set, determine the capacitance value of the detection area formed by the first signal line and the second signal line corresponding to the second signal combination based on the third detection signal and the fourth detection signal in the second signal combination.

[0116] After determining the second signal combination set, the detection processor selects any one of the second signal combinations from the second signal combination set. Based on the third detection signal and the fourth detection signal in the second signal combination, it can determine the capacitance value of the detection area formed by the preset number of first signal lines corresponding to the third detection signal and the preset number of second signal lines corresponding to the fourth detection signal.

[0117] The description of the detection area formed by the preset number of first signal lines and the preset number of second signal lines can be found in the detailed description of the above embodiments, and will not be repeated here.

[0118] In this embodiment, by acquiring the third detection signals of the first detection terminals formed by the interconnection of a preset number of first signal lines, and the fourth detection signals of the second detection terminals formed by the interconnection of a preset number of second signal lines, a second signal combination set is obtained. For each second signal combination in the second signal combination set, the capacitance value of the detection area formed by the first and second signal lines corresponding to the second signal combination can be determined based on the third and fourth detection signals in the second signal combination. Thus, by acquiring the capacitance values ​​of the detection area formed by a preset number of first and second signal lines, the breakage detection efficiency of the display panel can be improved.

[0119] In one embodiment, as shown in FIG10, an implementation method for detecting breakage of a display panel based on capacitance value is provided, the steps of which include:

[0120] Step 1001: Compare the capacitance value with the preset capacitance range. If the capacitance value is within the preset capacitance range, it is determined that the pixel area on the display panel corresponding to the capacitance value has not been broken.

[0121] The preset capacitance range is set by the user according to the actual application. The detection processor compares the detected capacitance value with the preset capacitance range to determine whether the capacitance value is within the preset range. The preset capacitance range varies for different pixel areas.

[0122] If the detection processor determines that the capacitance value is within the preset capacitance range, it determines that the pixel area on the display panel corresponding to that capacitance value has not been broken.

[0123] Step 1002: If the capacitance value is outside the preset capacitance range, it is determined that the pixel area on the display panel corresponding to the capacitance value is broken.

[0124] If the detection processor compares the capacitance value with a preset capacitance range and determines that the capacitance value is outside the preset capacitance range, then it is determined that the pixel area on the display panel corresponding to the capacitance value has broken.

[0125] In this embodiment, the display panel can be broken by comparing the capacitance value with a preset capacitance range. This detection method is simple, quick, and easy to implement, making it more practical.

[0126] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0127] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0128] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A display module, characterized in that, The display module includes a display panel and a detection component. The display panel includes multiple pixel areas, and the detection component includes multiple first signal lines, multiple second signal lines, and a detection processor. A capacitor is formed between the first signal lines and the second signal lines located within the pixel areas. The detection processor is connected to each of the first signal lines and also to each of the second signal lines, for detecting the capacitance value of the capacitance formed between the first signal lines and the second signal lines, and performing breakage detection on the display panel based on the capacitance value; wherein, a preset number of the first signal lines are interconnected to form a first detection end, and the preset number of the second signal lines are interconnected to form a second detection end; the detection processor is connected to the first detection end and the second detection end, and the preset number is an integer greater than or equal to 2.

2. The display module according to claim 1, characterized in that, The display panel includes multiple pixel islands, each pixel island being located within a corresponding pixel region. A first signal line and a second signal line located within the pixel region of the display panel are respectively disposed on different metal layers. The orthographic projections of the first signal line and the second signal line on their respective pixel islands intersect.

3. The display module according to claim 2, characterized in that, The pixel islands are configured in a one-to-one correspondence with the pixel regions.

4. The display module according to claim 2, characterized in that, The first signal line and the second signal line located in the non-pixel area of ​​the display panel are respectively disposed in the same metal layer; or, the first signal line and the second signal line located in the non-pixel area of ​​the display panel are respectively disposed in different metal layers.

5. The display module according to claim 2, characterized in that, The display panel is a stretchable display panel, and the display panel also includes wires, through which two adjacent pixel islands are connected.

6. The display module according to claim 2, characterized in that, Each of the first signal lines is disposed on a corresponding metal layer along a first direction, and each of the second signal lines is disposed on a corresponding metal layer along a second direction, wherein the first direction and the second direction intersect.

7. The display module according to claim 6, characterized in that, The first direction and the second direction are perpendicular to each other.

8. The display module according to claim 6, characterized in that, The plurality of pixel islands are arranged in an array, wherein the number of first signal lines extending along the first direction is the same as the number of pixel islands arranged along the second direction, and the number of second signal lines extending along the second direction is the same as the number of pixel islands arranged along the first direction; or, the plurality of pixel islands are arranged in an array, wherein the number of first signal lines extending along the first direction is less than the number of pixel islands arranged along the second direction, and the number of second signal lines extending along the second direction is less than the number of pixel islands arranged along the first direction.

9. A display device, characterized in that, Includes the display module as described in any one of claims 1-8.

10. A method for detecting a display module, characterized in that, Applied to a display module as described in any one of claims 1-8, the detection method includes: detecting the capacitance value of a capacitor formed between a first signal line and a second signal line; and performing a breakage detection on the display panel in the display module based on the capacitance value.

11. The detection method according to claim 10, characterized in that, The step of detecting the capacitance value of the capacitance formed between the first signal line and the second signal line includes: acquiring a first detection signal on each of the first signal lines and acquiring a second detection signal on each of the second signal lines; combining each of the first detection signals and each of the second detection signals to obtain a first signal combination set; and for each first signal combination in the first signal combination set, determining the capacitance value of the capacitance formed between the first signal line and the second signal line corresponding to the first signal combination based on the first detection signal and the second detection signal in the first signal combination.

12. The detection method according to claim 10, characterized in that, The step of detecting the capacitance value of the capacitance formed between the first signal line and the second signal line includes: acquiring a preset number of third detection signals of the first detection terminals formed by interconnecting the first signal lines, and acquiring a preset number of fourth detection signals of the second detection terminals formed by interconnecting the second signal lines; combining each of the third detection signals and each of the fourth detection signals to obtain a second signal combination set; and for each second signal combination in the second signal combination set, determining the capacitance value of the detection area formed by the first signal line and the second signal line corresponding to the second signal combination based on the third detection signal and the fourth detection signal in the second signal combination.

13. The method according to claim 10, characterized in that, The step of detecting breakage of the display panel in the display module based on the capacitance value includes: comparing the capacitance value with a preset capacitance range; if the capacitance value is within the preset capacitance range, it is determined that the pixel area on the display panel corresponding to the capacitance value has not broken; if the capacitance value is outside the preset capacitance range, it is determined that the pixel area on the display panel corresponding to the capacitance value has broken.

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