Display panel and display device

Abstract

The invention provides a display panel and a display device, the display panel comprises a central area and an edge area, and the edge area surrounds at least part of the central area. The display panel comprises a first surface, a second surface and a third surface, wherein the first surface and the second surface are oppositely arranged; the display panel further comprises a temperature measuring structure, and at least part of the temperature measuring structure is located in the edge area. The temperature measuring structure comprises a first part and a second part, and the first part is electrically connected with the second part; the first part is located on the third surface, and the second part is located on the first surface and / or the second surface. According to the display panel, the temperature measurement structures can be distributed in the three surfaces of the display panel, the temperature detection range of the temperature measurement structures is relatively large under the design, the detection precision of the position where the temperature abnormal area is located can be improved, and the follow-up temperature adjustment effect can be improved.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a display panel and display device. Background Technology

[0002] It is known that temperature has a significant impact on the display effect of a display device. To ensure a good display effect, existing technologies typically incorporate a temperature detection device within the display device to detect any abnormal temperatures and subsequently adjust the temperature. However, in existing designs, the temperature detection device struggles to accurately pinpoint the area where temperature anomalies occur, which can easily lead to poor subsequent temperature adjustment. Summary of the Invention

[0003] In view of this, this application provides a display panel and display device to solve the problem of insufficient detection accuracy of the above-mentioned temperature detection device in detecting the location of abnormal temperature areas.

[0004] In a first aspect, this application provides a display panel including a central region and an edge region, wherein the edge region surrounds at least a portion of the central region.

[0005] The display panel includes a first surface and a second surface that are positioned opposite each other, and a third surface that connects the first surface and the second surface.

[0006] The display panel also includes a temperature sensing structure, at least a portion of which is located in the edge region. The temperature sensing structure includes a first portion and a second portion, the first portion being electrically connected to the second portion; the first portion is located on a third surface, and the second portion is located on the first surface and / or the second surface.

[0007] Based on the same inventive concept, this application also provides a display device, including the above-mentioned display panel.

[0008] Compared with the prior art, the display module and display device provided by the present invention achieve at least the following beneficial effects: In this application, the temperature sensing structure can be distributed on all three surfaces of the display panel. With this design, the temperature detection range of the temperature sensing structure is relatively large, which is beneficial to improving the detection accuracy of the location of the temperature abnormal area and helps to improve the effect of subsequent temperature regulation. Attached Figure Description

[0009] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the 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.

[0010] Figure 1 This is a schematic diagram of a portion of the structure of a display device in related technologies; Figure 2 A schematic diagram of a partial structure of a display panel provided in this application; Figure 3 Another schematic diagram of a partial structure of a display panel provided in this application; Figure 4 Another schematic diagram of a partial structure of a display panel provided in this application; Figure 5 Another schematic diagram of a partial structure of a display panel provided in this application; Figure 6 A partial structure diagram of a transistor provided in this application; Figure 7 for Figure 5 A top view of part of the structure of the display panel shown; Figure 8 This application provides a top view of a partial structure of a display panel; Figure 9 A schematic diagram of a partial structure of a display panel provided in this application; Figure 10 Another schematic diagram of a partial structure of a display panel provided in this application; Figure 11 This application provides a top view of a partial structure of a display panel; Figure 12 This application provides a top view of a partial structure of a display panel; Figure 13 This application provides a top view of a partial structure of a display panel; Figure 14 This application provides a top view of a partial structure of a display panel; Figure 15 This is a schematic diagram of a display device provided in this application. Detailed Implementation

[0011] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0012] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0013] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0014] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0015] Figure 1 This is a schematic diagram of a partial structure of a display device in related technologies. For ease of understanding, Figure 1 Taking a splicing display screen as an example, this paper demonstrates some of the internal structures of the display device.

[0016] In related technologies, such as Figure 1 As shown, the display device 20' (e.g., a video wall display) includes multiple video wall panels 01'. To detect the temperature within the display device 20', a temperature sensing structure 02' is typically installed within the display device 20', and the temperature sensing structure 02' can be located on both sides of the display device 20'. The area where the temperature sensing structure 02' is located may overlap with the area where the multiple video wall panels 01' are located; that is, the temperature sensing structure 02' can detect the temperature within a relatively large area 03' formed by the multiple video wall panels 01'. It should be noted that the area corresponding to a single video wall panel 01' is usually large, and therefore the area corresponding to the aforementioned large area 03' formed by the multiple video wall panels 01' is correspondingly larger. During temperature detection within this large area 03', the temperature sensing structure 02' cannot achieve high-precision detection of the temperature of a single video wall panel 01'; that is, it is difficult to accurately detect temperature changes within a unit area (the distribution range of a single video wall panel 01') within the display device 20'. If an abnormal temperature occurs in a certain area of ​​a splicing panel 01', the existing temperature sensing structure 02' will have difficulty accurately detecting the location of the abnormal temperature area, which may affect the effect of subsequent temperature regulation.

[0017] Figure 2 This is a schematic diagram of a partial structure of a display panel provided in this application. Figure 3 This is another schematic diagram of a partial structure of a display panel provided in this application. Figure 4 This is another schematic diagram of a partial structure of a display panel provided in this application.

[0018] In response to the above problems, combined with Figure 2 , Figure 3 and Figure 4 This application provides a display panel 10, which includes a central region 01 and an edge region 02, wherein the edge region 02 surrounds at least a portion of the central region 01.

[0019] The display panel 10 includes a first surface S1 and a second surface S2 disposed opposite to each other, and a third surface S3 connecting the first surface S1 and the second surface S2. The first surface S1, the second surface S2 and the third surface S3 are different surfaces of the display panel 10. Temperature sensing structures can be set on these multiple different surfaces to increase the effective range of the temperature sensing structures on the display panel 10 and improve the accuracy of temperature sensing.

[0020] The display panel 10 also includes a temperature measuring structure 03, at least a portion of which is located in the edge region 02. The at least portion of the temperature measuring structure 03 may be a portion of a wiring structure disposed in the display panel 10, or it may be at least a portion disposed on the aforementioned surface of the display panel 10.

[0021] The temperature measuring structure 03 includes a first part 031 and a second part 032, which are electrically connected. The distribution range of the first part 031 and the second part 032 can be regarded as the detection range of the temperature measuring structure 03. During temperature detection, the temperature measuring structure 03 can receive the detection signal required for temperature detection, and a corresponding detection current can be formed in the first part 031 and the second part 032. When a temperature abnormality occurs in a part of the display panel 10, the resistance value of the part of the temperature measuring structure 03 located in that part of the area changes accordingly, which in turn causes a change in the intensity of the detection current. By confirming whether a change in the intensity of the detection current occurs, it can be determined whether there is a temperature abnormality within the detection range of the temperature measuring structure 03, which is helpful in determining the location of the area where the temperature abnormality occurs.

[0022] In one possible implementation, such as Figure 2 As shown, the first part 031 is located on the third surface S3, and the second part 032 is located on the first surface S1. In this implementation, the temperature measuring structure 03 can be regarded as being distributed on the first surface S1 and the third surface S3 of the display panel 10, which helps to detect temperature anomalies in different areas corresponding to the two surfaces respectively, and facilitates the confirmation of the location of the temperature anomaly area.

[0023] In one possible implementation, such as Figure 3As shown, the first part 031 is located on the third surface S3, and the second part 032 is located on the second surface S2. In this implementation, the temperature measuring structure 03 can be regarded as being distributed on the second surface S2 and the third surface S3 of the display panel 10, which helps to detect temperature anomalies in different areas corresponding to the two surfaces respectively, and facilitates the confirmation of the location of the temperature anomaly area.

[0024] In one possible implementation, such as Figure 4 As shown, the first part 031 is located on the third surface S3, and the second part 032 is partially located on the first surface S1 and partially located on the second surface S2. In this implementation, the temperature measuring structure 03 can be considered to be distributed on all three surfaces of the display panel 10. Under this design, the temperature measuring structure 03 has a relatively large temperature detection range, which is beneficial to improving the detection accuracy of the location of the temperature abnormal area.

[0025] Figure 5 This is another schematic diagram of a partial structure of a display panel provided in this application.

[0026] In one embodiment of this application, such as Figure 5 As shown, the second part 032 includes a first sub-part 321 and a second sub-part 322. The film layer where the first sub-part 321 is located is located on the side of the substrate 00 facing the first surface S1, and the film layer where the second sub-part 322 is located is located on the side of the substrate 00 facing the second surface S2.

[0027] The first sub-part 321 is electrically connected to the second sub-part 322 via the first part 031.

[0028] In this embodiment, the first sub-part 321, the first part 031 and the second sub-part 322 can be connected to form a temperature measuring structure 03 that extends and spreads between the three surfaces. In the unit area of ​​the edge region 02, the area occupied by the temperature measuring structure 03 is relatively large. That is, this design helps to increase the distribution density of the temperature measuring structure in the unit measurement area, which is beneficial to improving the accuracy of temperature detection.

[0029] Figure 6 This is a film structure diagram of a partial structure of a transistor provided in this application.

[0030] In one embodiment of this application, such as Figure 6 As shown, the display panel 10 also includes an active layer f1 and a first metal layer f2, with the first metal layer f2 located on the side of the active layer f1 away from the substrate 00.

[0031] Some transistors T1 within the display panel 10 include source and drain electrodes m1, which are located in the first metal layer f2.

[0032] Among them, combined Figure 5 and Figure 6 The first sub-part 321 is located in the first metal layer f2, and the second sub-part 322 is located on the side of the second surface S2 away from the first surface S1.

[0033] In this embodiment, the first sub-part 321 and the source / drain electrode m1 are both located in the first metal layer f2. That is, during the fabrication process, the metal layer f2 where the source / drain electrode m1 of transistor T1 is located can be used as the fabrication substrate for part of the temperature sensing structure 03 (the first sub-part 321). This design avoids the need to additionally set a film layer in the display panel 10 to fabricate the temperature sensing structure 03, which helps to reduce the complexity of the process. In addition, the second sub-part 322 is disposed on the second surface S2, which helps to make part of the temperature sensing structure 03 located on the surface of the display panel 10. Considering that placing the temperature sensing structure 03 on the panel surface is more conducive to sensing temperature changes, compared to the design of placing the entire temperature sensing structure 03 inside the film layer of the display panel 10, the design of this embodiment is more conducive to improving the sensitivity of the temperature sensing structure 03 to temperature changes.

[0034] Figure 7 for Figure 5 The diagram shows a top view of part of the structure of the display panel.

[0035] In one embodiment of this application, combined with Figure 5 and Figure 7 The display panel 10 includes a first edge L1, which extends along a first direction X.

[0036] The plurality of temperature measuring structures 03 include a first temperature measuring structure 03a, at least a portion of which is located between the central region 01 and the first edge L1.

[0037] The first temperature measuring structure 03a includes multiple first sub-parts 321 and multiple second sub-parts 322. Along the first direction X, the orthographic projections of the first sub-parts 321 on the substrate 00 and the orthographic projections of the second sub-parts 322 on the substrate 00 are arranged alternately.

[0038] In this embodiment of the application, the temperature measuring structure 03 composed of the first sub-part 321, the first sub-part 031 and the second sub-part 322 can be distributed in a meandering manner on the side where the three surfaces are located and extend along the first direction X. This design helps to improve the distribution density of the temperature measuring structure 03 in the edge region 02 opposite to the first edge L1, which is beneficial to increase the accuracy of temperature measurement in this region, and thus helps to improve the subsequent temperature adjustment effect.

[0039] In one embodiment of this application, combined with Figure 5 and Figure 7The orthographic projection shape of the first sub-part 321 on the substrate 00 is the same as the orthographic projection shape of the second sub-part on the substrate 00.

[0040] In the embodiments of this application, the first sub-part 321 and the second sub-part 322 correspond to the same projected shape, which helps to reduce the difficulty of process fabrication and reduce the fabrication cost. For example, when the first sub-part 321 and the second sub-part 322 are fabricated separately using an etching process, the same mask can be used to fabricate both of them separately (only the relative position between the mask and the substrate needs to be adjusted).

[0041] In one embodiment of this application, such as Figure 7 As shown, the first sub-part 321 and the second sub-part 322 are respectively open-shaped when projected onto the substrate 00, and the openings of their respective projection shapes are away from the central region 01.

[0042] In this embodiment, the wiring structure corresponding to the open projection shape helps to extend the distribution length of the temperature measuring structure 03 in the limited area of ​​the edge region 02 as much as possible, increasing the distribution density of the temperature measuring structure 03 and helping to improve the temperature measurement accuracy. In addition, the design that the openings of the projection shapes of the two sub-parts are both away from the central region 01 is beneficial to using the first part 031 located on the third surface S3 to realize the electrical connection between the two sub-parts, which helps to reduce the overall manufacturing difficulty.

[0043] Figure 8 This is a top view schematic diagram of a partial structure of a display panel provided in this application.

[0044] In one embodiment of this application, such as Figure 8 As shown, the first temperature measuring structure 03a includes a main temperature measuring structure 3a1, which includes a first sub-part 321, a second sub-part 322, and a first part 031. At least a portion of the main temperature measuring structure 3a1 extends along a first direction X.

[0045] The second part 032 also includes a third sub-part 323 and a fourth sub-part 324, which are respectively connected to the two ends of the main temperature measuring structure 3a1. At least a portion of the third sub-part 323 extends along the first direction X. The main temperature measuring structure 3a1 can receive the electrical signals required for temperature detection through the third sub-part 323 and the fourth sub-part 324.

[0046] Combination Figure 6 and Figure 8 The display panel 10 also includes an active layer f1, a first metal layer f2, and a second metal layer f3. The first metal layer f2 is located on the side of the active layer f1 away from the substrate 00, and the second metal layer f3 is located on the side of the active layer f1 close to the substrate 00.

[0047] The transistors T1 in the display panel 10 include source and drain m1 and bottom gate m2. The source and drain m1 are located in the first metal layer f2 and the bottom gate m2 is located in the second metal layer f3. The transistor T1 may also include top gate m3. The film layer where the top gate m3 is located may be located on the side of the active layer f1 away from the substrate 00.

[0048] Among them, combined Figure 6 and Figure 8 The third sub-part 323 is located in the second metal layer f3, and the fourth sub-part 324 is located in the first metal layer f2. At this time, the third sub-part 323 and the fourth sub-part 324 used to transmit electrical signals to the main temperature measuring structure 3a1 can be distributed in different layers.

[0049] In this embodiment, in addition to the main temperature sensing structure 3a1, the third sub-part 323 and the fourth sub-part 324 can also participate in detecting abnormal temperature areas. The design of distributing these two sub-parts in different layers helps to disperse the various parts of the temperature sensing structure 03 to multiple areas within the display panel 10 as much as possible, thereby increasing the temperature detection range of the temperature sensing structure 03. Furthermore, in actual manufacturing, this distributive design helps to avoid short circuits between the third sub-part 323 and the fourth sub-part 324 (in the direction perpendicular to the plane of the display panel 10) when they overlap, facilitating wiring design.

[0050] In one embodiment of this application, such as Figure 8 As shown, the first sub-part 321 is located in the first metal layer f2. Considering that the fourth sub-part 324 is also located in the first metal layer f2, the first sub-part 321 and the fourth sub-part 324 located in the same film layer can be prepared in the same preparation step.

[0051] Along a direction perpendicular to the plane where the display panel 10 is located, the distribution area of ​​the third sub-part 323 at least partially overlaps with the distribution area of ​​the first sub-part 321.

[0052] In this embodiment, the structure 04 (hereinafter referred to as the detection module 04) for providing the electrical signal required for temperature detection to the temperature measuring structure 03 can be disposed outside the second edge L2 of the display panel 10. The second edge L2 is adjacent to the first edge L1 and extends along the second direction Y, which intersects the first direction X. Correspondingly, the third sub-part 323 and the fourth sub-part 324 need to extend from the second edge L2 where the detection module 04 is located to both ends of the main temperature measuring structure 3a1. Figure 8As shown, considering that the main temperature measuring structure 3a1 can extend along the first direction X, it is likely that at least one of the third sub-part 323 and the fourth sub-part 324 will also need to extend along the first direction X. Taking the third sub-part 323 extending along the first direction X to one end of the main temperature measuring structure 3a1 as an example, when the distribution area of ​​the third sub-part 323 overlaps with the distribution area of ​​the first sub-part 321, it means that the third sub-part 323 and the main temperature measuring structure 3a1 can be concentrated in the same area. This design helps to minimize the area of ​​the temperature measuring structure 03 in the edge region 02 and reduce the impact of the temperature measuring structure 03 on the light transmittance of the edge region 02.

[0053] Figure 9 This is a schematic diagram of a partial structure of a display panel provided in this application. Figure 10 Another schematic diagram of a partial structure of a display panel provided in this application.

[0054] In one embodiment of this application, combined with Figure 9 and Figure 10 The display panel 10 includes a first edge L1 that extends along a first direction X; it may also include a second edge L2 that extends along a second direction Y, where the first direction X and the second direction Y intersect.

[0055] The plurality of temperature measuring structures 03 includes a second temperature measuring structure 03b, at least a portion of which is located between the central region 01 and the first edge L1.

[0056] In the second temperature sensing structure 03b, the film layer containing the second part 032 is located on the side of the substrate 00 facing the first surface S1. Figure 6 and Figure 9 Each part of the second part 032 can be located in the first metal layer f1.

[0057] The second part 032 includes a third sub-part 323 and a fourth sub-part 324. The detection module 04 can be located on the side of the second edge L2 away from the central region 01. Considering that the main part of the temperature measuring structure 03 can be located in the edge region 02 corresponding to the first edge L1, at least one of the third sub-part 323 and the fourth sub-part 324 needs to extend along the first direction X to achieve the connection between the detection module 04 and the more distant end of the main temperature measuring part in the second temperature measuring structure 03b.

[0058] In this structure, at least a portion of the orthographic projection of the third sub-part 323 onto the substrate 00 extends along the first direction X, and at least a portion of the first part 031 extends along the first direction X. The third sub-part 323 and the fourth sub-part 324 are electrically connected to the two ends of the first part 031, respectively. It should be noted that the first part 031 located on the third surface S3 can be regarded as the aforementioned main temperature measuring part, and the extension range of the first part 031 in the first direction X can also be regarded as the main detection range of the second temperature measuring structure 03b.

[0059] In this embodiment, considering that both the third sub-part 323 and the fourth sub-part 324 can be regarded as transmission line-like structures required to transmit electrical signals to the first part 031, the first part 031 can be the main component in the second temperature sensing structure 03b that relies on the temperature detection function. Furthermore, based on this embodiment, most of the structure in the second temperature sensing structure 03b can be concentrated on the third surface S3, reducing the structure distribution density in the relative areas of the first surface S1 and the second surface S2. This helps to further reduce the impact of the temperature sensing structure 03 on the panel transmittance while achieving the temperature detection function.

[0060] In one possible implementation, such as Figure 9 As shown, the first part 031 can extend along the first direction X, and the connection positions between the first part 031 and the third sub-part 323, and between the first part 031 and the fourth sub-part 324, are distributed along the first direction X. In this implementation, the third sub-part 323 may include a portion a extending a relatively long distance along the first direction X. This portion structure a can also serve as a temperature detection component. Therefore, this portion structure a and the first part 031 can jointly participate in the temperature detection process, which helps to increase the temperature detection range.

[0061] In one possible implementation, such as Figure 10 As shown, the first portion 031 can bend and extend along the first direction X and the direction Z perpendicular to the plane where the display panel 10 is located. The positions on the first portion 031 that connect to the third sub-part 323 and the fourth sub-part 324 can both be located on the side close to the second edge L2. In this implementation, since the positions on the first portion 031 that connect to the third sub-part 323 and the fourth sub-part 324 are both close to the second edge L2, the third sub-part 323 and the fourth sub-part 324 do not need to extend additionally in the first direction X. That is, the length of the orthographic projection of the third sub-part 323 and the fourth sub-part 324 on the first surface S1 in the first direction X can be shorter, which helps to reduce the occlusion area of ​​the third sub-part 323 and the fourth sub-part 324 in the edge region 02 and improve the light transmittance of the panel edge region 02.

[0062] Figure 11This is a top view schematic diagram of a partial structure of a display panel provided in this application.

[0063] In one embodiment of this application, such as Figure 11 As shown, the edge region 02 includes a first sub-region 021 and a second sub-region 022. The first sub-region 021 is located on the side of the central region 01 away from the second sub-region 022. That is, the first sub-region 021 and the second sub-region 022 can be located on opposite sides of the central region 01.

[0064] The multiple temperature measuring structures 03 include a first temperature measuring structure 03a and a second temperature measuring structure 03b. The first temperature measuring structure 03a and the second temperature measuring structure 03b are located in the first sub-region 021 and the second sub-region 022, respectively. Therefore, the first temperature measuring structure 03a and the second temperature measuring structure 03b can be respectively located on both sides of the display panel 10.

[0065] In this embodiment, the design of distributing the first temperature measuring structure 03a and the second temperature measuring structure 03b on both sides of the display panel 10 helps to detect the temperature of multiple edge areas on the display panel 10, which helps to reduce the effective detection range to multiple areas on a single display panel 10, and further improves the detection accuracy of abnormal temperature locations.

[0066] Figure 12 This is a top view schematic diagram of a partial structure of a display panel provided in this application.

[0067] In one possible implementation, such as Figure 12 As shown, the edge region 02 also includes a third sub-region 023, which is adjacent to the first sub-region 021.

[0068] The multiple temperature measuring structures 03 also include a third temperature measuring structure 03c, which is located in a third sub-region 023. The third temperature measuring structure 03c includes a first sub-part 321 and a second sub-part 322 arranged alternately along the second direction Y. The third sub-part 323 in the third temperature measuring structure 03c is located in the central region 01 on the side close to the first temperature measuring structure 03a. The fourth sub-part 324 in the third temperature measuring structure 03c is located in the central region 01 on the side close to the second temperature measuring structure 03b. Furthermore, in the third temperature measuring structure 03c, the third sub-part 323 and the fourth sub-part 324 can both be located in the second metal layer f3.

[0069] In this implementation, by setting temperature measuring structures 03 in all three sub-regions, it is beneficial to maximize the area of ​​the display panel 10 where temperature measuring structures 03 are located, thereby increasing the temperature detection range and improving the accuracy of subsequent temperature adjustment.

[0070] Figure 13This is a top view schematic diagram of a partial structure of a display panel provided in this application.

[0071] In one embodiment of this application, such as Figure 13 As shown, the display panel 10 also includes a connecting part 05. The first temperature measuring structure 03a and the second temperature measuring structure 03b are electrically connected through the connecting part 05. At this time, the two temperature measuring structures 03 located on both sides of the central region 01 can form an integrated detection structure, which further increases the distribution range of the temperature measuring structures 03 on the display panel 10.

[0072] Combination Figure 6 and Figure 13 The display panel 10 also includes an active layer f1 and a first metal layer f2, with the first metal layer f2 located on the side of the active layer f1 away from the substrate 00.

[0073] Some transistors T1 within the display panel 10 include source and drain electrodes m1, which are located in the first metal layer f2. At least a portion of the connection portion 05 is located in the first metal layer f2.

[0074] In this embodiment of the application, considering that some structures (such as the first sub-part 321) may be located in the first metal layer f2 in the temperature measuring structure 03, the source and drain m1, the first sub-part 321 and the connection part 05 can be fabricated in the same fabrication step during the fabrication process of transistor T1, which is beneficial to simplify the fabrication process.

[0075] In one embodiment of this application, combined with Figure 11 , Figure 12 and Figure 13 The temperature measuring structure 03 is electrically connected to the detection module 04, and the detection module 04 is used to detect the resistance change of the temperature measuring structure 03.

[0076] The display panel 10 is electrically connected to the flexible circuit board 20, and the detection module 04 is integrated into the chip 21 located on the flexible circuit board 20.

[0077] In this embodiment, the detection module 04 within the chip 21 can provide the electrical signal required for temperature detection to the temperature sensing structure 03, causing a current to form within the temperature sensing structure 03. The detection module 04 can also receive corresponding feedback signals from the temperature sensing structure 03, thereby detecting impedance changes in the temperature sensing structure 03. By analyzing the impedance changes in the temperature sensing structure 03, it can be determined whether an abnormal temperature has occurred in the detected area. Furthermore, compared to placing the detection module 04 on the display panel 10, integrating the detection module 04 within the chip 21 on the flexible circuit board 20 helps save space on the display panel 10 and facilitates narrow bezel design.

[0078] Figure 14This is a top view schematic diagram of a partial structure of a display panel provided in this application.

[0079] In one embodiment of this application, such as Figure 14 As shown, the display panel 10 includes a first edge L1, which extends along a first direction X.

[0080] The temperature measuring structure 03 includes a first main temperature measuring structure 3a11 and a second main temperature measuring structure 3a12. Both the first main temperature measuring structure 3a11 and the second main temperature measuring structure 3a12 are located in the edge region 02 between the central region 01 and the first edge L1. The first main temperature measuring structure 3a11 and the second main temperature measuring structure 3a12 are arranged along the first direction X.

[0081] The second end p12 of the first main temperature measuring structure 3a11 is connected to the first end p21 of the second main temperature measuring structure 3a12. The first end p11 of the first main temperature measuring structure 3a11 is electrically connected to the detection module 04 through the first connecting part 051. The second end p12 of the first main temperature measuring structure 3a11 is electrically connected to the detection module 04 through the second connecting part 052. The second end p22 of the second main temperature measuring structure 3a12 is electrically connected to the detection module 04 through the third connecting part 053.

[0082] In this embodiment, the first connecting part 051, the first main temperature measuring structure 3a11, and the second connecting part 052 can constitute one temperature measuring circuit, and the first connecting part 051, the first main temperature measuring structure 3a11, the second main temperature measuring structure 3a12, and the third connecting part 053 can constitute another temperature measuring circuit. By detecting the impedance changes in the two temperature measuring circuits respectively, it is possible to determine which temperature anomaly occurs within the detection area of ​​that circuit. Considering that the first main temperature measuring structure 3a11 and the second main temperature measuring structure 3a12 are arranged along the first direction X, the detection areas corresponding to the two temperature measuring circuits can be considered as distributed along the first direction X. The design of this embodiment can detect and confirm the specific location of the temperature anomaly within the two detection areas, improving the detection accuracy of the temperature anomaly location.

[0083] In one embodiment of this application, such as Figure 14 As shown, during the detection of the display panel 10, the detection module 04 outputs a test signal to the first end p11 of the temperature measuring structure 03 through the first connection part 051, and the detection module 04 receives the first feedback signal through the second connection part 052 and the second feedback signal through the third connection part 053.

[0084] In this embodiment, after receiving the test signal, the temperature measuring structure 03 can transmit a first feedback signal to the detection module 04 through the second connection part 052 and a second feedback signal to the detection module 04 through the third connection part 053. By analyzing the first feedback signal, the impedance change corresponding to the first main temperature measuring structure 3a11 can be obtained, and by analyzing the second feedback signal, the impedance change corresponding to the second main temperature measuring structure 3a12 can be obtained. Therefore, the design of this embodiment can be regarded as a detection method for detecting the location of the above-mentioned temperature anomaly, which helps to improve the detection accuracy of the location of the temperature anomaly.

[0085] Figure 15 This is a schematic diagram of a display device provided in this application.

[0086] This application provides a display device 30, such as... Figure 15 As shown, the display device 30 includes the aforementioned display panel 10. The display device 30 can be a video wall display, or it can be an electronic device such as a mobile phone, computer, or television.

[0087] The display device 30 provided in this application embodiment effectively improves the detection accuracy of abnormal temperature locations and significantly improves the adjustment effect of abnormal temperature.

[0088] In one embodiment of this application, such as Figure 15 As shown, the display device 30 includes at least two display panels 10, which can be splicing panels.

[0089] The temperature measuring structure 03 is electrically connected to the detection module 04, and the detection module 04 is used to detect the resistance change of the temperature measuring structure 03. The temperature measuring structure 03 in a single display panel 10 can correspond to a single detection module 04, that is, the detection module 04 can correspond one-to-one with the display panel 10; in addition, there may be multiple temperature measuring structures 03 in multiple display panels 10 corresponding to a single detection module 04, which is not limited in this application.

[0090] The detection module 04 is integrated into the temperature sensor 06, at least a portion of which is located in the gap between adjacent display panels 10.

[0091] In this embodiment, to avoid the temperature sensor 06, which integrates the detection module 04, affecting the light transmittance of the display panel 10, the temperature sensor 06 can be disposed on the outer edge of the panel. Specifically, the temperature sensor 06 can be disposed in the splicing gap between adjacent splicing panels. This design helps to hide the temperature sensor 06 using the splicing gap, reducing the visibility of the temperature sensor 06, thereby helping to improve the display effect.

[0092] The same or similar parts between the various embodiments in this specification can be referred to mutually. In particular, the device embodiments and terminal embodiments are basically similar to the method embodiments, so the description is relatively simple, and the relevant parts can be referred to the description in the method embodiments.

Claims

1. A display panel, characterized in that, It includes a central region and an edge region, wherein the edge region surrounds at least a portion of the central region; The display panel includes a first surface and a second surface disposed opposite to each other, and a third surface connecting the first surface and the second surface; The display panel further includes a temperature measuring structure, at least a portion of which is located in the edge region; the temperature measuring structure includes a first part and a second part, the first part being electrically connected to the second part; the first part is located on the third surface, and the second part is located on the first surface and / or the second surface.

2. The display panel according to claim 1, characterized in that, The second part includes a first sub-part and a second sub-part, wherein the film layer containing the first sub-part is located on the side of the substrate facing the first surface, and the film layer containing the second sub-part is located on the side of the substrate facing the second surface; The first sub-part is electrically connected to the second sub-part via the first part.

3. The display panel according to claim 2, characterized in that, The display panel further includes an active layer and a first metal layer, the first metal layer being located on the side of the active layer away from the substrate; some transistors in the display panel include source and drain electrodes, the source and drain electrodes being located in the first metal layer; The first sub-part is located in the first metal layer, and the second sub-part is located on the side of the second surface away from the first surface.

4. The display panel according to claim 2, characterized in that, The display panel includes a first edge that extends along a first direction; The plurality of temperature measuring structures includes a first temperature measuring structure, at least a portion of which is located between the central region and the first edge; The first temperature measuring structure includes multiple first sub-parts and multiple second sub-parts; along the first direction, the orthographic projections of the first sub-parts on the substrate and the orthographic projections of the second sub-parts on the substrate are arranged alternately.

5. The display panel according to claim 4, characterized in that, The orthographic projection shape of the first sub-part on the substrate is the same as the orthographic projection shape of the second sub-part on the substrate.

6. The display panel according to claim 5, characterized in that, The first sub-part and the second sub-part each have an open shape when projected onto the substrate, and the openings of their respective projected shapes are opposite to the central region.

7. The display panel according to claim 4, characterized in that, The first temperature measuring structure includes a main temperature measuring structure, which includes a first sub-part, a second sub-part, and the first part, and at least a portion of the main temperature measuring structure extends along the first direction; The second part further includes a third sub-part and a fourth sub-part, the third sub-part and the fourth sub-part being respectively connected to the two ends of the main temperature measuring structure; at least a portion of the third sub-part extends along the first direction; The display panel further includes an active layer, a first metal layer, and a second metal layer. The first metal layer is located on the side of the active layer away from the substrate, and the second metal layer is located on the side of the active layer close to the substrate. Some transistors in the display panel include source and drain electrodes and a bottom gate. The source and drain electrodes are located on the first metal layer, and the bottom gate is located on the second metal layer. The third sub-part is located in the second metal layer, and the fourth sub-part is located in the first metal layer.

8. The display panel according to claim 7, characterized in that, The first sub-part is located in the first metal layer; Along a direction perpendicular to the plane where the display panel is located, the distribution area of ​​the third sub-part overlaps at least partially with the distribution area of ​​the first sub-part.

9. The display panel according to claim 1, characterized in that, The display panel includes a first edge that extends along a first direction; The plurality of temperature measuring structures includes a second temperature measuring structure, at least a portion of which is located between the central region and the first edge; In the second temperature measurement structure, the film layer containing the second part is located on the side of the substrate facing the first surface; the second part includes a third sub-part and a fourth sub-part; Wherein, at least a portion of the orthographic projection of the third sub-part onto the substrate extends along the first direction, and at least a portion of the first part extends along the first direction; the third sub-part and the fourth sub-part are respectively electrically connected to the two ends of the first part.

10. The display panel according to claim 1, characterized in that, The edge region includes a first sub-region and a second sub-region, wherein the first sub-region is located on the side of the central region away from the second sub-region; The plurality of temperature measuring structures include a first temperature measuring structure and a second temperature measuring structure, wherein the first temperature measuring structure and the second temperature measuring structure are located in the first sub-region and the second sub-region, respectively.

11. The display panel according to claim 10, characterized in that, The display panel also includes a connecting part, through which the first temperature measuring structure and the second temperature measuring structure are electrically connected; The display panel further includes an active layer and a first metal layer, the first metal layer being located on the side of the active layer away from the substrate; some transistors in the display panel include source and drain electrodes, the source and drain electrodes being located in the first metal layer; At least a portion of the connecting portion is located in the first metal layer.

12. The display panel according to claim 1, characterized in that, The temperature measuring structure is electrically connected to the detection module, and the detection module is used to detect the resistance change of the temperature measuring structure. The display panel is connected to the flexible circuit board, and the detection module is integrated into a chip located on the flexible circuit board.

13. The display panel according to claim 1, characterized in that, The display panel includes a first edge that extends along a first direction; The temperature measuring structure includes a first main temperature measuring structure and a second main temperature measuring structure. Both the first main temperature measuring structure and the second main temperature measuring structure are located in the edge region between the central region and the first edge. The first main temperature measuring structure and the second main temperature measuring structure are arranged along the first direction. The second end of the first main temperature measuring structure is electrically connected to the first end of the second main temperature measuring structure. The first end of the first main temperature measuring structure is electrically connected to the detection module through the first connecting part, the second end of the first main temperature measuring structure is electrically connected to the detection module through the second connecting part, and the second end of the second main temperature measuring structure is electrically connected to the detection module through the third connecting part.

14. The display panel according to claim 13, characterized in that, During the testing of the display panel, the testing module outputs a test signal to the first end of the temperature measuring structure through the first connection part, and the testing module receives a first feedback signal through the second connection part and a second feedback signal through the third connection part.

15. A display device, characterized in that, Includes the display panel as described in any one of claims 1-14.

16. The display device according to claim 15, characterized in that, Includes at least two of the aforementioned display panels; The temperature measuring structure is electrically connected to the detection module, and the detection module is used to detect the resistance change of the temperature measuring structure. The detection module is integrated into a temperature sensor, at least a portion of which is located in the gap between adjacent display panels.

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