Touch display panel and touch display device

Abstract

The application discloses a touch display panel and a touch display device. The touch display panel has a display area, and comprises: a touch electrode located in the display area, a plurality of touch electrodes being arranged in a matrix; and a mark structure located in the display area, the shapes of the orthographic projections of the mark structures corresponding to the touch electrodes at different positions on the light-out surface of the touch display panel being different. According to the touch display panel and the touch display device provided by the embodiments of the application, the logical channel to which the touch electrode in the current field of view belongs can be accurately judged, which is helpful for quickly locating the problem channel, reducing the analysis difficulty, and improving the analysis speed.

Description

Technical Field

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

[0002] During the troubleshooting process of a touch display panel, faulty lines can be found in the display area under a microscope. However, due to the large number of channels in the touch display panel and the high consistency of the graphics in the display area, it is impossible to determine which logic channel the currently seen line belongs to under a microscope. This increases the difficulty of troubleshooting, makes it impossible to quickly locate the problematic channel, and affects the troubleshooting speed. Summary of the Invention

[0003] This application provides a touch display panel and a touch display device that can accurately determine the logic channel to which the touch electrodes in the current field of view belong, which helps to quickly locate the problematic channel, reduce the difficulty of analysis, and improve the analysis speed.

[0004] In a first aspect, embodiments of this application provide a touch display panel having a display area. The touch display panel includes: touch electrodes located in the display area, with multiple touch electrodes arranged in rows and columns; and a marking structure located in the display area, wherein the shape of the orthographic projection of the marking structure corresponding to the touch electrodes at different positions onto the light-emitting surface of the touch display panel is different.

[0005] In one possible implementation of the first aspect, the touch electrode includes multiple grid traces, and the touch display panel also includes multiple light-emitting units. The orthographic projections of the grid traces and the light-emitting units on the light-emitting surface of the touch display panel do not overlap, and the orthographic projections of the marking structure and the light-emitting units on the light-emitting surface of the touch display panel do not overlap.

[0006] Preferably, at least some of the marking structures and grid lines overlap in orthographic projection on the light-emitting surface of the touch display panel;

[0007] Preferably, at least a portion of the marking structure's orthographic projection on the light-emitting surface of the touch display panel is surrounded by the orthographic projection of the grid traces on the light-emitting surface of the touch display panel.

[0008] In one possible implementation of the first aspect, the touch electrode includes a first touch electrode and a second touch electrode stacked together, and at least part of the marking structure is a via structure connecting the first touch electrode and the second touch electrode.

[0009] In one possible implementation of the first aspect, the marking structure includes a first marking structure, wherein the first marking structures corresponding to the touch electrodes in the same row have the same orthographic projection shape on the light-emitting surface of the touch display panel, and the first marking structures corresponding to the touch electrodes in different rows have different orthographic projection shapes on the light-emitting surface of the touch display panel.

[0010] In one possible implementation of the first aspect, the touch electrode includes a plurality of grid traces, and each grid trace of each touch electrode is provided with at least one first mark structure.

[0011] Preferably, the multiple first marker structures corresponding to each grid trace in each touch electrode are evenly distributed.

[0012] In one possible implementation of the first aspect, the marking structure includes a second marking structure, wherein the second marking structures corresponding to the same column of touch electrodes have the same orthographic projection shape on the light-emitting surface of the touch display panel, and the second marking structures corresponding to different columns of touch electrodes have different orthographic projection shapes on the light-emitting surface of the touch display panel.

[0013] In one possible implementation of the first aspect, the touch electrode includes a plurality of grid traces, and each grid trace of each touch electrode is provided with at least one second marker structure.

[0014] Preferably, the multiple second marker structures corresponding to each grid trace in each touch electrode are evenly distributed.

[0015] In one possible implementation of the first aspect, the touch electrode includes multiple grid traces, the marking structure includes a third marking structure, at least some of the grid traces in the same touch electrode are correspondingly provided with the third marking structure, and the shapes of the orthographic projections of the third marking structures corresponding to the grid traces at different positions in the same touch electrode on the light-emitting surface of the touch display panel are different, and / or, the number of third marking structures corresponding to the grid traces at different positions in the same touch electrode is different.

[0016] In one possible implementation of the first aspect, at least one grid trace without a third marker structure is spaced between two grid traces in the same touch electrode that are correspondingly provided with a third marker structure.

[0017] Preferably, the third marking structure includes a first sub-marking structure and a second sub-marking structure, and the number of at least one of the first sub-marking structure and the second sub-marking structure is different for the grid traces at different positions in the same touch electrode;

[0018] Preferably, the orthographic projections of the first sub-marker structure and the grid traces overlap on the light-emitting surface of the touch display panel;

[0019] Preferably, the second sub-marker structure is disposed on the same layer as the grid trace, and the second sub-marker structure is located between two adjacent touch electrodes.

[0020] Based on the same inventive concept, in a second aspect, embodiments of this application provide a touch display device, including a touch display panel as described in any embodiment of the first aspect.

[0021] According to the touch display panel and touch display device provided in the embodiments of this application, since the marking structure is located in the display area and the shape of the orthographic projection of the marking structure corresponding to the touch electrode at different positions on the light-emitting surface of the touch display panel is different, when a certain area is inspected by a microscope, the position of the corresponding touch electrode can be accurately determined according to the shape of the marking structure in the field of view. This allows for accurate determination of the logic channel to which the touch electrode in the current field of view belongs, which helps to quickly locate the problem channel, reduce the difficulty of analysis, and improve the analysis speed. Attached Figure Description

[0022] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals denote the same or similar features, and the drawings are not drawn to scale.

[0023] Figure 1 This illustration shows a structural schematic diagram of a touch display panel provided in an embodiment of this application;

[0024] Figure 2 Show Figure 1 A magnified view of an example of the Q1 region;

[0025] Figure 3 This illustration shows another structural diagram of the touch display panel provided in an embodiment of this application;

[0026] Figure 4 Show Figure 3 A magnified view of an example of the Q2 region;

[0027] Figure 5 This illustration shows a cross-sectional structural diagram of a touch display panel provided in an embodiment of this application;

[0028] Figure 6 This is a schematic diagram of a touch display device provided in an embodiment of this application. Detailed Implementation

[0029] The features and exemplary embodiments of various aspects of this application will now be described in detail. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this application and are not configured to limit this application. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples of this application.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0031] It should be understood that when describing the structure of a component, when referring to a layer or region as being "above" or "on top of" another layer or region, it can mean that it is directly above the other layer or region, or that it contains other layers or regions between it and the other layer or region. Furthermore, if the component is flipped over, that layer or region will be located "below" or "under" the other layer or region.

[0032] 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, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0033] In the embodiments of this application, the term "connection" can refer to two components being directly connected, or it can refer to two components being connected via one or more other components.

[0034] Various modifications and variations can be made to this application without departing from its spirit or scope, which will be apparent to those skilled in the art. Therefore, this application is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this application can be combined with each other without contradiction.

[0035] Before describing the technical solutions provided in the embodiments of this application, in order to facilitate understanding of the embodiments of this application, this application first specifically explains the problems existing in the related technologies:

[0036] During the defect analysis of touch display panels, faulty lines in the display area can be found under a microscope. Then, the logic channel where the faulty location is located can be determined by testing software, such as the row and column position of the faulty touch electrode. Then, the specific defect form can be determined by the corresponding logic channel, such as foreign objects, short circuits, open circuits, etc.

[0037] In related technologies, positional markings are made in the non-display area surrounding the display area. However, due to the limited field of view of a microscope, when examining a certain area, the field of view of other areas is inevitably lost. When observing the display area with a microscope, it is impossible to confirm the specific logical channel where the viewing location is located. Furthermore, touch electrodes can be patterned; for example, touch electrodes can include multiple grid lines to form a grid-like touch electrode. This results in high pattern consistency within the display area, making it even more difficult to confirm the specific logical channel where the viewing location is located when observing the display area with a microscope.

[0038] To address the aforementioned issues, this application provides a touch display panel and a touch display device. The following description, in conjunction with the accompanying drawings, will illustrate various embodiments of the touch display panel and the touch display device.

[0039] Figure 1 This diagram illustrates a structural schematic of a touch display panel provided in an embodiment of this application. Figure 1 As shown, the touch display panel 100 may include a display area AA. In some examples, the touch display panel 100 may also include a non-display area NA, which may at least partially surround the display area AA.

[0040] Multiple touch electrodes 10 can be arranged in rows and columns within the display area AA of the touch display panel 100. Figure 1 The diagram illustrates a 5-row, 3-column array of touch electrodes 10, which is not intended to limit this application.

[0041] Figure 2 Show Figure 1 A magnified view of an example of the Q1 region. In some examples, such as... Figure 2 As shown, the touch electrode 10 of the touch display panel 100 may include multiple grid traces 11. The multiple grid traces 11 included in the same touch electrode 10 can be interconnected, so that the touch electrode 10 as a whole presents a grid-like structure. It is understood that for a self-capacitance structure, the grid traces 11 of different touch electrodes 10 may not be connected. Of course, the touch electrode 10 may also be a block structure. In addition, the touch display panel may also include touch leads (not shown in the figure) connecting the touch electrode 10 and the touch chip, through which touch driving signals and / or touch recognition signals can be transmitted.

[0042] Please continue to refer to this. Figure 2The touch display panel 100 may also include a marking structure 20 located in the display area AA. Each touch electrode 10 may be provided with a corresponding marking structure 20, and the shape of the orthographic projection of the marking structure 20 corresponding to the touch electrode 10 at different positions on the light-emitting surface of the touch display panel is different.

[0043] According to the touch display panel provided in the embodiments of this application, since the marking structure is located in the display area and the shape of the orthographic projection of the marking structure corresponding to the touch electrode at different positions on the light-emitting surface of the touch display panel is different, when a certain area is inspected by a microscope, the position of the corresponding touch electrode can be accurately determined according to the shape of the marking structure in the field of view. This allows for accurate determination of the logic channel to which the touch electrode in the current field of view belongs, which helps to quickly locate the problem channel, reduce the difficulty of analysis, and improve the analysis speed.

[0044] In some alternative embodiments, such as Figure 2 As shown, the marking structure 20 may include a first marking structure 21, and each touch electrode 10 may be correspondingly provided with a first marking structure 21. The orthographic projection shape of the first marking structure 21 corresponding to the touch electrodes 10 in the same row on the light-emitting surface of the touch display panel may be the same, and the orthographic projection shape of the first marking structure 21 corresponding to the touch electrodes 10 in different rows on the light-emitting surface of the touch display panel may be different. In this way, when inspecting a certain area with a microscope, the row position of the corresponding touch electrode can be quickly and accurately determined according to the shape of the first marking structure in the field of view.

[0045] As an example, such as Figure 1 As shown, the orthographic projection of the first marking structure 21 corresponding to the touch electrode 10 in the first row onto the light-emitting surface of the touch display panel can be rectangular; the orthographic projection of the first marking structure 21 corresponding to the touch electrode 10 in the second row onto the light-emitting surface of the touch display panel can be triangular; the orthographic projection of the first marking structure 21 corresponding to the touch electrode 10 in the third row onto the light-emitting surface of the touch display panel can be rhomboid; the orthographic projection of the first marking structure 21 corresponding to the touch electrode 10 in the fourth row onto the light-emitting surface of the touch display panel can be circular; and the orthographic projection of the first marking structure 21 corresponding to the touch electrode 10 in the fifth row onto the light-emitting surface of the touch display panel can be cross-shaped.

[0046] In order to quickly and accurately determine the row position of the grid trace 11 within the field of view during the inspection process, in some optional embodiments, each grid trace 11 in each touch electrode 10 is provided with at least one first marking structure 21. It is understood that the shape of the orthographic projection of the first marking structure 21 corresponding to each grid trace 11 in the same touch electrode 10 on the light-emitting surface of the touch display panel may be the same.

[0047] For example, when each grid line 11 in each touch electrode 10 is provided with a plurality of first mark structures 21, the plurality of first mark structures 21 provided with each grid line 11 can be evenly distributed.

[0048] In some alternative embodiments, such as Figure 2 As shown, the marking structure 20 may include a second marking structure 22, and each touch electrode 10 may be correspondingly provided with a second marking structure 22. The orthographic projection shape of the second marking structure 22 corresponding to the touch electrodes 10 in the same column on the light-emitting surface of the touch display panel may be the same, and the orthographic projection shape of the second marking structure 22 corresponding to the touch electrodes 10 in different columns on the light-emitting surface of the touch display panel may be different. In this way, when inspecting a certain area with a microscope, the column position of the corresponding touch electrode can be quickly and accurately determined according to the shape of the second marking structure in the field of view.

[0049] As an example, such as Figure 1 As shown, the orthographic projection of the second marking structure 22 corresponding to the touch electrode 10 in column A onto the light-emitting surface of the touch display panel can be a "V" shape; the orthographic projection of the second marking structure 22 corresponding to the touch electrode 10 in column B onto the light-emitting surface of the touch display panel can be a pentagon; and the orthographic projection of the second marking structure 22 corresponding to the touch electrode 10 in column C onto the light-emitting surface of the touch display panel can be a star shape. As another example, such as... Figure 3 As shown, the orthographic projection of the second marking structure 22 corresponding to the touch electrode 10 in column A onto the light-emitting surface of the touch display panel can be rectangular, the orthographic projection of the second marking structure 22 corresponding to the touch electrode 10 in column B onto the light-emitting surface of the touch display panel can be circular, and the orthographic projection of the second marking structure 22 corresponding to the touch electrode 10 in column C onto the light-emitting surface of the touch display panel can be star-shaped.

[0050] Similarly, in order to quickly and accurately determine the column position of the grid trace 11 within the field of view during the inspection process, in some optional embodiments, each grid trace 11 in each touch electrode 10 is provided with at least one second marking structure 22. It is understood that the shape of the orthographic projection of the second marking structure 22 corresponding to each grid trace 11 in the same touch electrode 10 on the light-emitting surface of the touch display panel may be the same.

[0051] For example, when each grid trace 11 in each touch electrode 10 is provided with a plurality of second marker structures 22, the plurality of second marker structures 22 provided with each grid trace 11 can be evenly distributed. Of course, the plurality of second marker structures 22 provided with each grid trace 11 can also be centrally distributed.

[0052] To accurately distinguish between the first marking structure 21 and the second marking structure 22 corresponding to the same touch electrode 10, as an example, such as Figure 1 As shown, the shapes of the orthographic projections of the first marking structure 21 and the second marking structure 22 onto the light-emitting surface of the touch display panel can be different.

[0053] As another example, the shapes of the orthographic projections of the first marker structure 21 corresponding to a portion of the row and the second marker structure 22 corresponding to a portion of the column on the light-emitting surface of the touch display panel may be the same, and their relative distribution positions on the same touch electrode 10 may differ. For example, as Figure 3 As shown, Figure 3 and Figure 1 The difference lies in the shape of the orthographic projection of the second marking structure 22 corresponding to the touch electrode 10 in column A and the first marking structure 21 corresponding to the touch electrode 10 in row 1 onto the light-emitting surface of the touch display panel. Similarly, the shape of the orthographic projection of the second marking structure 22 corresponding to the touch electrode 10 in column B and the first marking structure 21 corresponding to the touch electrode 10 in row 4 onto the light-emitting surface of the touch display panel is the same. Taking the touch electrode 10 in column A of row 1 as an example, the orthographic projections of its corresponding first marking structure 21 and second marking structure 22 onto the light-emitting surface of the touch display panel are the same, but their relative distribution positions may differ. Taking the touch display panel as a mutual capacitance structure as an example, different touch electrodes may not be connected, therefore the grid traces of different touch electrodes may be disconnected from each other, such as... Figure 4 As shown, there may be break regions 111 between the grid traces 11 of different touch electrodes. It is understood that the grid traces 11 of different touch electrodes are disconnected from each other at the break regions 111. When the shapes of the orthographic projections of the first marking structure 21 and the second marking structure 22 corresponding to the touch electrode 10 on the light-emitting surface of the touch display panel are the same, one of the first marking structure 21 and the second marking structure 22 can be positioned close to the break region 111, and the other can be positioned away from the break region 111. For example, the second marking structure 22 can be positioned close to the break region 111, and the first marking structure 21 can be positioned away from the break region 111.

[0054] The touch electrode 10 includes multiple grid traces 11. To quickly and accurately determine the logic channel to which a grid trace 11 within the field of view belongs during inspection—for example, determining which grid trace 11 within the field of view is the nth grid trace in the touch electrode 10—in some optional embodiments, such as… Figure 2 or Figure 4As shown, the marking structure 20 may further include a third marking structure 23. At least some of the grid traces 11 in the same touch electrode 10 may be correspondingly provided with a third marking structure 23, and the orthographic projection shape of the third marking structure 23 provided at different positions of the grid traces 11 in the same touch electrode 10 on the light-emitting surface of the touch display panel is different, and / or, the number of third marking structures 23 provided at different positions of the grid traces 11 in the same touch electrode 10 is different. In this way, when inspecting a certain area with a microscope, the logical channel to which the corresponding grid trace belongs can be quickly and accurately determined according to the shape and / or number of the third marking structures in the field of view.

[0055] Figure 2 and Figure 4 Seven grid traces 11 in the touch electrode 10 are shown, numbered 11(i) to 11(i+6). It is illustrated that the i-th grid trace 11(i), the (i+2)-th grid trace 11(i+2), and the (i+6)-th grid trace 11(i+6) are equipped with a third marker structure 23. The (i+1)-th grid trace 11(i+1), the (i+3)-th grid trace 11(i+3), the (i+4)-th grid trace 11(i+4), and the (i+5)-th grid trace 11(i+5) are not equipped with the third marker structure 23. During inspection, the logic channel to which the grid trace without the third marker structure belongs can be determined by identifying the logic channel to which the adjacent grid trace with the third marker structure belongs.

[0056] As an example, one of the first tag structure 21 and the second tag structure 22 can be reused as the first sub-tag structure 231. Figure 2 and Figure 4 Taking the reuse of the second marker structure 22 as the first sub-marker structure 231 as an example, the second marker structure 22 can be set close to the second sub-marker structure 232.

[0057] In some alternative embodiments, such as Figure 2 or Figure 4 As shown, in the same touch electrode, there can be at least one mesh trace 11 without the third marker structure 23 between two mesh traces 11 corresponding to the third marker structure 23. When inspecting a certain area with a microscope, multiple mesh traces can be observed in the field of view. By setting the interval, the number of third marker structures can be reduced without affecting the accuracy of determining the logic channel to which the mesh trace belongs.

[0058] As an example, such as Figure 2 or Figure 4As shown, the third marker structure 23 may include a first sub-marker structure 231 and a second sub-marker structure 232. The number of at least one of the first sub-marker structure 231 and the second sub-marker structure 232 corresponding to the grid traces 11 at different positions in the same touch electrode 10 is different.

[0059] For example, the i-th mesh trace 11(i) is configured with one first sub-marker structure 231 and one second sub-marker structure 232, the (i+2)-th mesh trace 11(i+2) is configured with one first sub-marker structure 231 and two second sub-marker structures 232, and the (i+6)-th mesh trace 11(i+6) is configured with two first sub-marker structures 231 and two second sub-marker structures 232.

[0060] When the number of at least one of the first sub-marker structure 231 and the second sub-marker structure 232 corresponding to the grid traces 11 at different positions in the same touch electrode 10 is different, the shape of the orthographic projection of the first sub-marker structure 231 and the second sub-marker structure 232 on the light-emitting surface of the touch display panel may be the same or different, and this application does not limit this.

[0061] For example, the orthographic projections of the first sub-marker structure 231 and the grid trace 11 on the light-emitting surface of the touch display panel can overlap.

[0062] Taking the touch display panel with a mutual capacitance structure as an example, different touch electrodes can be disconnected from each other, and the grid traces of different touch electrodes can be disconnected from each other. For example, the second sub-marker structure 232 is disposed on the same layer as the grid trace 11, and the second sub-marker structure 232 is located between two adjacent touch electrodes 10. That is, the second sub-marker structure 232 can be disposed between two grid traces 11 of two adjacent touch electrodes 10. Understandably, for mesh traces 11(i+1), 11(i+3), 11(i+4), and 11(i+5) that do not have a third marker structure 23, the number of break regions 111 is 1. However, the number of break regions 111 corresponding to the i-th mesh trace 11(i) is 2, the number of break regions 111 corresponding to the (i+2)-th mesh trace 11(i+2) is 3, and the number of break regions 111 corresponding to the (i+6)-th mesh trace 11(i+6) is also 3. Therefore, the logical channel to which the mesh trace belongs can also be determined based on the number of first sub-marker structures 231 and the number of break regions 111 corresponding to the mesh trace.

[0063] In some alternative embodiments, such as Figure 2As shown, the touch display panel may also include multiple light-emitting units 30. The orthographic projections of the grid lines 11 and the light-emitting units 30 on the light-emitting surface of the touch display panel do not overlap, and the orthographic projections of the marking structure 20 and the light-emitting units 30 on the light-emitting surface of the touch display panel do not overlap. In this way, neither the grid lines 11 nor the marking structure 20 will affect the light-emitting effect.

[0064] For example, the light-emitting unit may include an organic light-emitting diode (OLED) light-emitting element, or other types of light-emitting elements. The touch electrode 10 and the light-emitting unit 30 may be stacked, and the touch electrode 10 may be disposed on the light-emitting side of the light-emitting unit 30.

[0065] For example, the light-emitting unit 30 may include a first light-emitting unit 31, a second light-emitting unit 32, and a third light-emitting unit 33 that emit light of different colors. For example, the first light-emitting unit 31 may emit red light, the second light-emitting unit 32 may emit green light, and the third light-emitting unit 33 may emit blue light.

[0066] As an example, at least some of the marker structures 20 and the grid traces 11 have overlapping orthographic projections on the light-emitting surface of the touch display panel. For example, the first marker structure 21, the second marker structure 22, the first sub-marker structure 231, and the grid traces 11 have overlapping orthographic projections on the light-emitting surface of the touch display panel.

[0067] As an example, at least a portion of the orthographic projection of the marker structure 20 onto the light-emitting surface of the touch display panel is surrounded by the orthographic projection of the grid trace 11 onto the light-emitting surface of the touch display panel. For example, the first marker structure 21, the second marker structure 22, the first sub-marker structure 231, and their orthographic projections onto the light-emitting surface of the touch display panel are surrounded by the orthographic projection of the grid trace 11 onto the light-emitting surface of the touch display panel. This effectively integrates the marker structure 20 and the grid trace, ensuring that the marker structure 20 is within the display area and further preventing it from affecting the display effect.

[0068] In some alternative embodiments, such as Figure 5 As shown, the touch electrode 10 may include a first touch electrode 101 and a second touch electrode 102 stacked together. An insulating layer may be provided between the first touch electrode 101 and the second touch electrode 102. At least part of the marking structure 20 may be a via structure connecting the first touch electrode 101 and the second touch electrode 102. By connecting the first touch electrode 101 and the second touch electrode 102 to each other through the marking structure 20, the overall resistance of the touch electrode can be reduced, the touch recognition accuracy can be improved, and the position marking of each touch electrode can be achieved simply by fabricating vias, which is relatively easy to implement.

[0069] Both the first touch electrode 101 and the second touch electrode 102 may include multiple grid lines, and the patterned shapes of the first touch electrode 101 and the second touch electrode 102 corresponding to the same touch electrode may be the same.

[0070] For example, the mesh traces of the touch electrode 10 can be metal traces.

[0071] For example, the first marker structure 21, the second marker structure 22, and the first sub-marker structure 231 can all be via structures connecting the first touch electrode 101 and the second touch electrode 102. The second sub-marker 232 can be disposed on the same layer as the mesh trace, but the second sub-marker 232 and the mesh trace are not connected to each other.

[0072] Based on the same inventive concept, this application also provides a touch display device, including the touch display panel provided in this application. Please refer to... Figure 6 , Figure 6 This is a schematic diagram of the structure of a touch display device provided in an embodiment of this application. Figure 6 The provided touch display device 1000 includes the touch display panel 100 provided in any of the above embodiments of this application. Figure 6 This embodiment uses a mobile phone as an example to illustrate the touch display device 1000. It is understood that the touch display device provided in this application embodiment can be other touch display devices with touch display functions, such as wearable products, computers, televisions, and automotive display devices. This application does not impose specific limitations on these. The touch display device provided in this application embodiment has the beneficial effects of the touch display panel provided in this application embodiment. For details, please refer to the specific descriptions of the touch display panel in the above embodiments; these will not be repeated here.

[0073] The embodiments described above are not exhaustive, nor do they limit the application to the specific embodiments described herein. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to effectively utilize this application and its modifications. This application is limited only by the claims and their full scope and equivalents.

Claims

1. A touch display panel, characterized in that, The touch display panel includes a display area: Touch electrodes are located in the display area, and multiple touch electrodes are arranged in rows and columns; The marking structure is located in the display area, and the shape of the orthographic projection of the marking structure corresponding to the touch electrode at different positions on the light-emitting surface of the touch display panel is different; The touch electrode includes multiple grid lines, and the touch display panel also includes multiple light-emitting units. The orthographic projections of the grid lines and the light-emitting units on the light-emitting surface of the touch display panel do not overlap, and the orthographic projections of the marking structure and the light-emitting units on the light-emitting surface of the touch display panel do not overlap.

2. The touch display panel according to claim 1, characterized in that, At least a portion of the marked structure and the grid traces overlap in their orthographic projections on the light-emitting surface of the touch display panel.

3. The touch display panel according to claim 2, characterized in that, At least a portion of the marked structure is surrounded by the orthographic projection of the grid traces on the light-emitting surface of the touch display panel.

4. The touch display panel according to claim 1, characterized in that, The touch electrode includes a first touch electrode and a second touch electrode stacked together, and at least part of the marking structure is a via structure connecting the first touch electrode and the second touch electrode.

5. The touch display panel according to claim 1, characterized in that, The marking structure includes a first marking structure, wherein the first marking structures corresponding to the touch electrodes in the same row have the same orthographic projection shape on the light-emitting surface of the touch display panel, and the first marking structures corresponding to the touch electrodes in different rows have different orthographic projection shapes on the light-emitting surface of the touch display panel.

6. The touch display panel according to claim 5, characterized in that, The touch electrode includes multiple grid lines, and each grid line in the touch electrode is provided with at least one of the first mark structures.

7. The touch display panel according to claim 6, characterized in that, Each of the grid traces in each of the touch electrodes has a plurality of first mark structures uniformly distributed.

8. The touch display panel according to claim 1, characterized in that, The marking structure includes a second marking structure. The second marking structures corresponding to the touch electrodes in the same column have the same orthographic projection shape on the light-emitting surface of the touch display panel, while the second marking structures corresponding to the touch electrodes in different columns have different orthographic projection shapes on the light-emitting surface of the touch display panel.

9. The touch display panel according to claim 8, characterized in that, The touch electrode includes multiple grid traces, and each of the grid traces in the touch electrode is provided with at least one of the second mark structures.

10. The touch display panel according to claim 9, characterized in that, Each of the grid traces in each of the touch electrodes has a plurality of second mark structures uniformly distributed.

11. The touch display panel according to claim 1, characterized in that, The touch electrode includes multiple grid traces, and the marking structure includes a third marking structure. At least some of the grid traces in the same touch electrode are correspondingly provided with the third marking structure, and the shapes of the orthographic projections of the third marking structures provided with the grid traces at different positions in the same touch electrode on the light-emitting surface of the touch display panel are different, and / or, the number of the third marking structures provided with the grid traces at different positions in the same touch electrode is different.

12. The touch display panel according to claim 11, characterized in that, In the same touch electrode, there is at least one mesh trace without the third mark structure between the two mesh traces that are correspondingly provided with the third mark structure.

13. The touch display panel according to claim 12, characterized in that, The third marking structure includes a first sub-marking structure and a second sub-marking structure, wherein at least one of the first sub-marking structures and the second sub-marking structure is different for the mesh traces at different positions in the same touch electrode.

14. The touch display panel according to claim 13, characterized in that, The first sub-marker structure and the grid trace overlap in their orthographic projections on the light-emitting surface of the touch display panel.

15. The touch display panel according to claim 13, characterized in that, The second sub-marker structure is disposed on the same layer as the mesh trace, and the second sub-marker structure is located between two adjacent touch electrodes.

16. A touch display device, characterized in that, Includes the touch display panel according to any one of claims 1 to 15.

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