Display module, display device and detection method of display module

Abstract

The invention 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, a capacitor is formed between the first signal line and the second signal line in the pixel region; the detection processor is connected with each first signal line and is also connected with each second signal line; and the detection module is used for detecting the capacitance value of a capacitor formed between the first signal line and the second signal line and carrying out fracture detection on the display panel according to the capacitance value. By using the display module provided by the invention, the fracture phenomenon existing in the pixel region in the display panel can be detected.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display module, a display device, and a display module detection method. Background Art

[0002] One of the advantages of OLED (Organic Light Emitting Diode) display substrates is that they can be made flexible. By making OLED devices on flexible substrates, bendable display devices can be realized. With the increasing popularity of wearable devices, higher requirements are placed on the stretchability of OLED flexible panels, and display panels that can achieve screen stretching have emerged.

[0003] Due to the characteristics of the stretched display panel, cracks easily appear in the film layer of the display panel, resulting in screen breakage. Therefore, a solution for detecting screen breakage is urgently needed. Summary of the invention

[0004] Based on this, it is necessary to provide a display module, a display device and a display module detection method to address the above technical problems.

[0005] In a first aspect, an embodiment of the present application provides a display module, the display module includes a display panel and a detection component, the display panel includes a plurality of pixel areas, the detection component includes a plurality of first signal lines, a plurality of second signal lines and a detection processor, and a capacitor is formed between the first signal line and the second signal line in the pixel area;

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

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

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

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

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

[0011] In one embodiment, each first signal line is disposed in a corresponding metal layer along a first direction, and each second signal line is disposed in 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, the plurality of pixel islands are arranged in an array, the number of first signal lines extending along the first direction is consistent with the number of pixel islands arranged along the second direction, and the number of second signal lines extending along the second direction is consistent with the number of pixel islands arranged along the first direction;

[0014] or,

[0015] The plurality of 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 less than the number of pixel islands arranged along the first direction.

[0016] In one embodiment, a preset number of first signal lines are interconnected to form a first detection end, and a preset number of 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; the preset number is an integer greater than or equal to 2;

[0017] or,

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

[0019] In a second aspect, an embodiment of the present application provides a display device, comprising the detection display module provided in the first aspect above.

[0020] In a third aspect, an embodiment of the present application further provides a method for detecting a display module, the method being applied to the display module provided in the first aspect, the method comprising:

[0021] detecting a capacitance value of a capacitor formed between the first signal line and the second signal line;

[0022] The display panel in the display module is detected for fracture according to 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 a first detection signal on each first signal line, and acquire a second detection signal on each second signal line;

[0025] Combining each first detection signal with each second detection signal to obtain a first signal combination set;

[0026] For each first signal combination in the first signal combination set, a capacitance value of a capacitor formed by a first signal line and a second signal line corresponding to the first signal combination is determined according to 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 of a first detection end formed by interconnecting a preset number of first signal lines, and acquire a fourth detection signal of a second detection end formed by interconnecting a preset number of second signal lines;

[0029] combining each third detection signal with each fourth detection signal to obtain a second signal combination set;

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

[0031] In one embodiment, the step of detecting the fracture of the display panel in the display module according to the capacitance value includes:

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

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

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

[0035] The embodiment of the present application provides a display module, a display device and a detection method for a display module, wherein the display module includes a display panel and a detection component, wherein the display panel includes a plurality of pixel areas, the detection component includes a plurality of first signal lines, a plurality of second signal lines and a detection processor, and a capacitor is formed between the first signal line and the second signal line in the pixel area. The detection processor is connected to each first signal line, and is also connected to each second signal line, and is used to detect the capacitance value of the capacitor formed between the first signal line and the second signal line, and to perform fracture detection on the display panel according to the capacitance value. In this embodiment, a capacitor can be formed between the first signal line and the second signal line in the pixel area, and the display panel can be fractured by detecting the capacitance value of the capacitor. Moreover, the capacitance area where the capacitor is formed between the first signal line and the second signal line is set corresponding to the pixel area, and the pixel area where the first signal line and the second signal line are set correspondingly can be fractured. Moreover, when the display panel is detected to be fractured, the specific pixel area where the fracture exists can be determined, which is convenient for subsequent targeted repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of the present application, the drawings required for use in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 A schematic diagram of the structure of a display module provided by an embodiment;

[0038] Figure 2 A schematic diagram of the structure of a display module provided by an embodiment;

[0039] Figure 3 A schematic diagram of a partial structure of a display module provided by an embodiment;

[0040] Figure 4 A schematic structural diagram of a display module provided in another embodiment;

[0041] Figure 5 A schematic structural diagram of a display module provided in another embodiment;

[0042] Figure 6 A schematic structural diagram of a display module provided in another embodiment;

[0043] Figure 7 A schematic diagram of a detection method according to an embodiment;

[0044] Figure 8A schematic flow chart of the steps of a detection method provided in another embodiment;

[0045] Fig. 9 A schematic flow chart of the steps of a detection method provided in another embodiment;

[0046] Fig.10 A schematic flow chart of the steps of a detection method provided in another embodiment.

[0047] Description of reference numerals:

[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 terminal; 101a. First sub-detection terminal; 101b. Second sub-detection terminal; 102. Second detection terminal; 102a. Third sub-detection terminal; 102b. Fourth sub-detection terminal. DETAILED DESCRIPTION

[0049] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0050] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, they do not represent any order, quantity or importance, but are only used to distinguish different components. These terms are only used to distinguish one element from another element. For example, without departing from the scope of the present application, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element. "Including" or "comprising" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0052] Active Matrix Organic Light Emitting Diode (AMOLED) display panels are popular because of their wide viewing angle, ultra-high contrast and fast response. One of the advantages of OLED (Organic Light Emitting Diode) display substrates is that they can be made flexible. By making OLED devices on a flexible substrate, a bendable display panel can be achieved. With the increasing popularity of wearable devices, higher requirements are placed on the stretching performance of OLED flexible panels, and display panels that can achieve screen stretching have emerged.

[0053] Due to the special structure of the stretched OLED display panel, many parts of the overall structure are hollowed out, which makes the inside of the display panel prone to cracking. Therefore, a solution for detecting screen cracks is urgently needed, that is, PCD (Panel Crack Detection) is required for the display panel.

[0054] See also Figure 1-Figure 3 An embodiment of the present 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 areas 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. Capacitance is formed between the first signal line 100 and the second signal line 200 in the pixel area 21.

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

[0056] The structure of the display panel 20 is an island bridge structure. Figure 2 As shown, the display panel 20 includes a plurality of pixel regions 21, a plurality of pixel islands 23 and a plurality of wires 22. The pixel region 21 is Figure 2 The area surrounded by the dotted box. Each pixel island 23 is located in the corresponding pixel area 21, and a plurality of wires 22 are located in the bridge area. Adjacent pixel islands 23 are electrically connected through the wires 22. Among them, one pixel island 23 may correspond to one pixel area 21, that is, the pixel islands 23 and the pixel areas 21 are arranged in a one-to-one correspondence; there may also be a pixel area 21 without a corresponding pixel island 23. This embodiment does not limit the correspondence between the pixel islands 23 and the pixel areas 21. Figure 3 FIG. 2 is a schematic diagram of the arrangement of the first signal line 100 and the second signal line 200 corresponding to a pixel area 21 . Figure 3The rectangular area in the middle is a capacitor area 24 where the capacitor formed between the first signal line 100 and the second signal line 200 is located. Figure 3 The other lines except the first signal line 100 and the second signal line 200 are the conductive lines 22 between the pixel island 23 and the adjacent pixel island 23 .

[0057] The detection component 10 includes a plurality of first signal lines 100 and a plurality of second signal lines 200, and the plurality of first signal lines 100 and the plurality of second signal lines 200 are arranged corresponding to the plurality of pixel regions 21 in the display panel 20. That is, the first signal line 100 and the second signal line 200 are arranged corresponding to the pixel region 21, and a capacitor can be formed between the first signal line 100 and the second signal line 200 in the pixel region 21, that is, the orthographic projections of the first signal line 100 and the second signal line 200 on the plane where the pixel island 23 is located intersect and are located in the pixel region 21.

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

[0059] The detection component 10 also includes a detection processor 300, which includes a first end and a second end. The first end of the detection processor 300 is connected to a plurality of first signal lines 100, and can obtain signals transmitted on the first signal lines 100. The second end of the detection processor 300 is connected to a plurality of second signal lines 200, and can obtain signals transmitted on the second signal lines 200. The detection processor 300 may include a control chip in the display module, or may include a device for detecting the current and voltage of the first signal line 100 and the second signal line 200. This embodiment does not limit the type and structure of the detection processor 300, as long as its function can be achieved.

[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 obtaining the capacitance value, the detection processor 300 can analyze the capacitance value to perform fracture 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 is fractured. This embodiment does not limit the specific method of the detection processor 300 performing fracture detection on the display panel 20 according to the capacitance value, as long as its function can be achieved.

[0061] In an optional embodiment, a preset capacitance range is stored in the detection processor 300. After obtaining the 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 area 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 area 21 corresponding to the capacitance value is broken. The preset capacitance ranges corresponding to different numbers of pixel areas 21 are different. In other words, the preset capacitance range corresponding to the capacitance value of one pixel area 21 detected by the detection processor 300 is different from the preset capacitance range corresponding to the capacitance value of four pixel areas 21 detected by the detection processor 300.

[0062] The display module provided in the embodiment of the present application includes a display panel 20 and a detection component 10, wherein the display panel 20 includes a plurality of pixel areas 21, and the detection component 10 includes a plurality of first signal lines 100, a plurality of second signal lines 200 and a detection processor 300, wherein a capacitor is formed between the first signal line 100 and the second signal line 200 in the pixel area 21. The detection processor 300 is connected to each first signal line 100, and is also connected to each second signal line 200, and is used to detect the capacitance value of the capacitor formed between the first signal line 100 and the second signal line 200, and to perform fracture detection on the display panel 20 according to the capacitance value. In the present embodiment, a distributed capacitance can be formed between the first signal line 100 and the second signal line 200 in the pixel area 21, and the fracture detection of the display panel 20 can be performed by detecting the capacitance value of the distributed capacitance. In addition, the capacitance area 24 where the capacitance is formed between the first signal line 100 and the second signal line 200 is arranged corresponding to the pixel area 21, and the fracture detection can be performed on the pixel area 21 where the first signal line 100 and the second signal line 200 are arranged correspondingly. Furthermore, when a fracture of the display panel 20 is detected, the specific pixel region 21 where the fracture exists can be determined, so as to facilitate subsequent targeted repair.

[0063] In one embodiment, the first signal line 100 and the second signal line 200 in the pixel area 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 in the non-pixel area of ​​the display panel 20 are respectively arranged in the same metal layer; or, the first signal line 100 and the second signal line 200 in the non-pixel area of ​​the display panel 20 are respectively arranged in different metal layers.

[0065] The display panel 20 also includes a plurality of metal layers formed therein, and the display panel 20 includes a pixel region 21 and a non-pixel region. The first signal line 100 and the second signal line 200 may be arranged in two adjacent metal layers, or in two spaced metal layers, and the metal layer may be a film layer adjacent to the pixel island 23 in the display panel 20, or a film layer in the pixel island 23. The present embodiment does not limit the specific metal layer in which the first signal line 100 and the second signal line 200 are arranged, as long as a distributed capacitor can be formed between the first signal line 100 and the second signal line 200 in the pixel region 21.

[0066] In one embodiment, the first signal line 100 and the second signal line 200 in the non-pixel region are respectively arranged in 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, any one of the first signal line 100 and the second signal line 200 will cross to another metal layer, so that the first signal line 100 and the second signal line 200 are respectively arranged in different metal layers at the pixel region 21. In other words, the first signal line 100 and the second signal line 200 at 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 arranged in different metal layers. That is, in the pixel area 21 and the non-pixel area in the display panel 20, the first signal line 100 and the second signal line 200 are respectively arranged in different metal layers, so that there is no need to cross layers in the pixel area 21, and the first signal line 100 and the second signal line 200 in the pixel area 21 can form a capacitor, which is convenient for setting.

[0068] The above embodiment provides a configuration method of the first signal line 100 and the second signal line 200 in the pixel area 21 and the non-pixel area. In the pixel area 21, the first signal line 100 and the second signal line 200 are respectively configured in different metal layers. In the non-pixel area, the first signal line 100 and the second signal line 200 can be configured in different metal layers or in the same metal layer. Users can configure them according to actual applications, so that the display module has higher practicality.

[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 is provided to detect whether the display panel 20 is broken, thereby improving the reliability and practicality of the stretchable display panel.

[0071] In one embodiment, Figure 1 and Figure 4 As shown, each first signal line 100 is disposed in a corresponding metal layer along a first direction, and each second signal line 200 is disposed in 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. A plurality of first signal lines 100 are arranged in parallel along the first direction (X direction), and a plurality of second signal lines 200 are arranged in parallel along the second direction (Y direction). Each first signal line 100 is perpendicular to each second signal line 200, so that the first signal line 100 and the second signal line 200 can form a capacitor.

[0073] In one embodiment, Figure 4 As shown, multiple pixel islands 23 are arranged in an array, the number of first signal lines 100 extending along the first direction is consistent with 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 consistent with the number of pixel islands 23 arranged along the first direction.

[0074] The plurality of pixel islands 23 in the display panel 20 are arranged in an array to form a pixel array, which includes a row pixel region 211, i.e., a region corresponding to the plurality of pixel islands 23 arranged along the first direction; and a column pixel region 212, i.e., a region corresponding to the plurality of pixel islands 23 arranged along the second direction. The number of the first signal lines 100 extending along the first direction in the detection component 10 is consistent with the number of the pixel islands 23 arranged along the second direction. In other words, the number of the first signal lines 100 extending along the first direction is consistent with the number of the row pixel regions 211, i.e., a corresponding first signal line 100 is provided in each row pixel region 211. The number of the second signal lines 200 extending along the second direction in the detection component 10 is consistent with the number of the pixel islands 23 arranged along the first direction. In other words, the number of the second signal lines 200 extending along the second direction is consistent with the number of the column pixel regions 212, i.e., a corresponding second signal line 200 is provided in each column pixel region 212. That is to say, the first signal line 100 and the second signal line 200 set in each pixel area 21 in the display panel 20 intersect at their orthographic projections on the corresponding pixel island 23, so that the first signal line 100 and the second signal line 200 located in different metal layers in the pixel area 21 can form a capacitor. By detecting the capacitance value of the capacitor, it is possible to detect whether each pixel area 21 is broken.

[0075] In this embodiment, the number of first signal lines 100 extending along the first direction is consistent with 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 consistent with the number of pixel islands 23 arranged along the first direction, indicating that each pixel area 21 is provided with a first signal line 100 and a second signal line 200 capable of forming a capacitor, so that fracture detection can be performed on each pixel area 21, making the detection component 10 more practical.

[0076] In one embodiment, Figure 5 As shown, multiple 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 less than the number of pixel islands 23 arranged along the first direction.

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

[0078] The orthographic projections of the first signal line 100 and the second signal line 200 on the pixel island 23 intersect, so that the first signal line 100 and the second signal line 200 located on different metal layers on the pixel island 23 can form a capacitor. Figure 5As shown (the wires 22 between the pixel areas 21 are not shown), the number of row pixel areas 211 in the pixel array is 7, the first signal lines 100 are arranged at intervals, and the number of first signal lines 100 is 4; correspondingly, the number of column pixel areas 212 in the pixel array is 7, the second signal lines 200 are arranged at intervals, and the number of second signal lines 200 is 4.

[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, which not only enables the display panel 20 to be fractured, but also improves the detection efficiency. In addition, the manufacturing cost of such a detection component 10 is low.

[0080] The above embodiment provides two configurations of the first signal line 100 , the second signal line 200 and the plurality of pixel islands 23 , and the user can select one according to actual application, thereby improving the practicality of the display module.

[0081] In one embodiment, Figure 6 As shown, a preset number of first signal lines 100 are interconnected to form a first detection end 101, and a preset number of second signal lines 200 are interconnected to form a second detection end 102; the detection processor 300 is connected to the first detection end 101 and the second detection end 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 connected to each other to form a first detection end 101, so that the preset number of first signal lines 100 are connected to each other, and the detection processor 300 can obtain the signals of the preset number of first signal lines 100. The preset number of second signal lines 200 are connected to each other to form a second detection end 102, so that the preset number of second signal lines 200 are connected to each other, and the detection processor 300 can obtain the signals of the preset number of second signal lines 200. The pixel area 21 corresponding to the preset number of first signal lines 100 is the same as the pixel area 21 corresponding to the preset number of second signal lines 200, so that the detection processor 300 can detect 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 by connecting with the first detection end 101 and the second detection end 102, so as to perform fracture detection on the pixel area 21.

[0083] In an optional embodiment, after a preset number of first signal lines 100 are connected to form the first detection end 101, a single first signal line 100 exists among the plurality of first signal lines 100. Similarly, after a preset number of second signal lines 200 are connected to form the second detection end 102, a single second signal line 200 exists among the plurality of second signal lines 200. Figure 6 As shown, it is assumed that the first detection terminal 101 formed by interconnecting a preset 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 preset number of second signal lines 200 may include a third sub-detection terminal 102a and a fourth sub-detection terminal 102b. Through the signals received by the first sub-detection terminal 101a and the third sub-detection terminal 102a, 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 sub-detection terminal 102a can be detected. Through the signals received by the first sub-detection terminal 101a and the fourth sub-detection terminal 102b, the capacitance value of the detection area B formed by the first signal line 100 corresponding to the first sub-detection terminal 101a and the second signal line 200 corresponding to the fourth sub-detection terminal 102b can be detected. Through the signals received by 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. Through the signals received by 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 receiving the signals of 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 a capacitor can be detected.

[0084] In this embodiment, a preset number of first signal lines 100 are interconnected to form a first detection end 101, and a preset number of second signal lines 200 are interconnected to form a second detection end 102. The detection processor 300 performs fracture 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 end 101 and the second detection end 102, thereby improving the efficiency of fracture 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] That is to say, the detection processor 300 can receive the signal of each first signal line 100 and the signal of each second signal line 200. In this way, in the area where each pixel island is located, the first signal line 100 and the second signal line 200 located in different metal layers can form a capacitor, and the detection processor 300 can realize the fracture detection of each pixel area 21.

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

[0088] An embodiment of the present application further provides a display device, which includes the display module provided in the above embodiment.

[0089] The display device provided in the embodiment of the present 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, a mobile phone, a wireless device, a personal digital assistant (PDA), a handheld or portable computer, a GPS receiver / navigator, a camera, an MP4 video player, a camcorder, a game console, a watch, a clock, a calculator, a television monitor, a flat-panel display, a computer monitor, a car display (e.g., an odometer display, etc.), a navigator, a cockpit controller and / or display, a display of a camera view (e.g., a display of a rearview camera in a vehicle), an electronic photo, an electronic billboard or sign, a projector, etc.

[0091] See also Figure 7 One embodiment of the present application provides a method for detecting a display module, which can be applied to the display module provided in the above embodiment. This embodiment is specifically described by applying the detection method to a detection processor in a display module, and 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 obtain signals of the first signal line and the second signal line of the pixel area set on the display panel, and determine the capacitance value of the distributed capacitor formed by the first signal line and the second signal line according to the obtained signals. Different detection processors have different methods for detecting the capacitance value of the capacitor, which is not limited in this embodiment.

[0094] In an optional embodiment, the detection processor may detect the current and voltage between the first signal line and the second signal line, and calculate the capacitance value according to the current and the voltage.

[0095] Step 710: Perform fracture detection on the display panel according to 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 the pixel area of ​​the display panel is broken according to the capacitance value. This embodiment does not limit the specific method of detecting the fracture of the display panel according to the capacitance value, as long as its function can be achieved.

[0097] In an optional embodiment, the capacitance value may be detected by a pre-set detection model, that is, the capacitance value is input into the detection model, and the detection model detects the capacitance value and outputs a corresponding detection result. The detection result includes that the pixel area corresponding to the capacitance value has a fracture phenomenon, or the pixel area corresponding to the capacitance value does not have a fracture phenomenon.

[0098] The detection method provided in the embodiment of the present application detects the capacitance value of the capacitor formed between the first signal line and the second signal line; and performs fracture detection on the display panel according to the capacitance value. In this embodiment, the fracture detection of the display panel can be performed by the capacitance value of the capacitor formed between the first signal line and the second signal line, and such a detection method is simple and fast. Moreover, the first signal line and the second signal line form a capacitor in the pixel area of ​​the display panel. Then, while determining that the display panel is fractured by the capacitance value, the specific pixel area where the fracture occurs can be determined, which can improve the practicality of the detection method.

[0099] In one embodiment, Figure 8 As shown, an implementation method for detecting the capacitance value of a capacitor formed between a first signal line and a second signal line includes the following steps:

[0100] Step 800: Acquire a first detection signal on each first signal line, and acquire a 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 obtain 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 with each second detection signal to obtain a first signal combination set. The first signal combination set includes multiple combination sets consisting of any first detection signal and all second detection signals.

[0104] Assume that the first detection signal obtained includes signal a and signal b, and 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 according to 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 first signal combination from the first signal combination set, and 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 the first signal combinations in the first signal combination set can be determined.

[0107] In this embodiment, by acquiring the first detection signal on each first signal line and acquiring the second detection signal on each second signal line; combining each first detection signal with each second detection signal to obtain a first signal combination set; 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 according to the first detection signal and the second detection signal of the first signal combination. In this way, the capacitance of each pixel area through which the first signal line and the second signal line pass can be determined, so that fracture detection can be performed on each pixel area.

[0108] In one embodiment, Fig. 9 As shown, another implementation method of detecting the capacitance value of a capacitor formed between a first signal line and a second signal line includes the following steps:

[0109] Step 900: Acquire a third detection signal of a first detection end formed by interconnecting a preset number of first signal lines, and acquire a fourth detection signal of a second detection end formed by interconnecting a preset number of second signal lines.

[0110] For the description of the first detection end formed by interconnecting a preset number of first signal lines and the second detection end formed by interconnecting a preset number of second signal lines, reference may be made to the specific description of the above embodiment.

[0111] The detection processor can obtain 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 a current or a voltage, and the fourth detection signal can be a current or a 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, which includes multiple combination sets consisting of any third detection signal and all fourth detection signals.

[0114] The description of the second signal combination set may refer to the description of the first signal combination set in the above embodiment, 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 according to 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 second signal combination from the second signal combination set, and 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 a preset number of first signal lines corresponding to the third detection signal and a preset number of second signal lines corresponding to the fourth detection signal.

[0117] For the description of the detection area formed by the preset number of first signal lines and the preset number of second signal lines, reference may be made to the specific description of the above embodiment, which will not be repeated here.

[0118] In this embodiment, by obtaining the third detection signal of the first detection end in which a preset number of first signal lines are connected to each other, and obtaining the fourth detection signal of the second detection end in which a preset number of second signal lines are connected to each other; combining each third detection signal with each fourth detection signal to obtain a second signal combination set; for each second signal combination in the second signal combination set, according to the third detection signal and the fourth detection signal in the second signal combination, the capacitance value of the detection area formed by the first signal line and the second signal line corresponding to the second signal combination can be determined. In this way, by obtaining the capacitance value of the detection area formed by the preset number of first signal lines and the preset number of second signal lines, the display panel is detected for fracture, which can improve the efficiency of fracture detection.

[0119] In one embodiment, Fig.10 As shown, it is related to an implementation method of detecting the fracture of a display panel according to a capacitance value, and the steps of the implementation method include:

[0120] Step 1001: Compare the capacitance value with a preset capacitance range. If the capacitance value is within the preset capacitance range, it is determined that a pixel region on the display panel corresponding to the capacitance value is not 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 capacitance range. Different preset capacitance ranges correspond to different pixel areas.

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

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

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

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

[0126] In the case of using “including”, “having”, and “comprising” described herein, another component may be added unless a clear limiting term such as “only”, “consisting of”, etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as being one in number.

[0127] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, 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 above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A display module, characterized in that: The display module includes a display panel and a detection component, wherein the display panel includes a plurality of pixel areas, the detection component includes a plurality of first signal lines, a plurality of second signal lines and a detection processor, and a capacitor is formed between the first signal lines and the second signal lines in the pixel areas; The detection processor is connected to each of the first signal lines and also connected to each of the second signal lines, and is used to detect the capacitance value of the capacitor formed between the first signal line and the second signal line, and perform fracture detection on the display panel according to the capacitance value.

2. The display module according to claim 1, characterized in that: The display panel comprises a plurality of pixel islands, each of the pixel islands is located in a corresponding pixel region, a first signal line and a second signal line in a pixel region of the display panel are respectively arranged in different metal layers; orthographic projections of the first signal line and the second signal line on the corresponding pixel island intersect; Optionally, the pixel islands are arranged in one-to-one correspondence with the pixel regions; Optionally, the first signal line and the second signal line in the non-pixel area of ​​the display panel are respectively arranged in the same metal layer; or the first signal line and the second signal line in the non-pixel area of ​​the display panel are respectively arranged in different metal layers; Optionally, the display panel is a stretchable display panel, and the display panel further includes a wire, and two adjacent pixel islands are connected by the wire.

3. The display module according to claim 2, characterized in that: Each of the first signal lines is arranged in a corresponding metal layer along a first direction, and each of the second signal lines is arranged in a corresponding metal layer along a second direction, wherein the first direction intersects with the second direction; Optionally, the first direction and the second direction are perpendicular to each other.

4. The display module according to claim 3, characterized in that: The plurality of pixel islands are arranged in an array, the number of the first signal lines extending along the first direction is consistent with the number of the pixel islands arranged along the second direction, and the number of the second signal lines extending along the second direction is consistent with the number of the pixel islands arranged along the first direction; or, The multiple pixel islands are arranged in an array, the number of the first signal lines extending along the first direction is less than the number of the pixel islands arranged along the second direction, and the number of the second signal lines extending along the second direction is less than the number of the pixel islands arranged along the first direction.

5. The display module according to any one of claims 1 to 4, characterized in that: A preset number of the first signal lines are connected to each other to form a first detection end, and a preset number of the second signal lines are connected to each other 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; or, Each of the first signal lines is connected to the detection processor, and each of the second signal lines is connected to the detection processor.

6. A display device, characterized in that: Comprising the display module as described in any one of claims 1-5.

7. A method for detecting a display module, characterized in that: Applied to the display module according to any one of claims 1 to 5, the detection method comprises: detecting a capacitance value of a capacitor formed between the first signal line and the second signal line; A fracture detection is performed on the display panel in the display module according to the capacitance value.

8. The detection method according to claim 7, characterized in that: The step of detecting the capacitance value of the capacitor formed between the first signal line and the second signal line comprises: Acquire a first detection signal on each of the first signal lines, and acquire a second detection signal on each of the second signal lines; Combining each of the first detection signals with each of the second detection signals to obtain a first signal combination set; For each first signal combination in the first signal combination set, a capacitance value of a capacitor formed by a first signal line and a second signal line corresponding to the first signal combination is determined according to a first detection signal and a second detection signal in the first signal combination.

9. The detection method according to claim 7, characterized in that: The step of detecting the capacitance value of the capacitor formed between the first signal line and the second signal line comprises: Acquire a third detection signal of a first detection end formed by interconnecting a preset number of the first signal lines, and acquire a fourth detection signal of a second detection end formed by interconnecting a preset number of the second signal lines; Combining each of the third detection signals with each of the fourth detection signals to obtain a second signal combination set; For each second signal combination in the second signal combination set, a capacitance value of a detection area formed by a first signal line and a second signal line corresponding to the second signal combination is determined according to a third detection signal and a fourth detection signal in the second signal combination.

10. The method according to claim 7, characterized in that The step of performing fracture detection on the display panel in the display module according to the capacitance value comprises: comparing the capacitance value with a preset capacitance range; If the capacitance value is within the preset capacitance range, determining that a pixel region on the display panel corresponding to the capacitance value is not broken; If the capacitance value is outside the preset capacitance range, it is determined that a pixel region on the display panel corresponding to the capacitance value is broken.

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