Touch display panel and touch display apparatus

Abstract

Provided are a touch display panel and a touch display apparatus. The touch display panel comprises a display panel and a touch panel arranged on one side of the display panel, the touch panel comprising a touch structure layer, and the display panel comprising an anode layer, the touch structure layer comprising a plurality of touch lines, and the plurality of touch lines defining a plurality of touch grids. The touch display panel comprises a first region and a second region. The plurality of touch lines include a plurality of first touch lines located in the first region and a plurality of second touch lines located in the second region; and the line width of at least one first touch line among the plurality of first touch lines is smaller than the line width of at least one second touch line among the plurality of second touch lines. The reflectivity of the first region and the reflectivity of the second region are equal, the reflectivity being the ratio of, to incident light rays, light rays of the incident light rays which come from one side of the touch structure layer, penetrate the plurality of touch lines to irradiate the anode layer, and then are reflected by the anode layer to one side of the touch structure layer.

Description

Touch display panel and touch display device Technical Field

[0001] The present disclosure relates to the field of touch technology, and in particular to a touch display panel and a touch display device. Background Art

[0002] Since the rise of touch technology, it has become increasingly popular due to its simplicity, speed, and user-friendliness. There are more and more products with touch functions on the market, such as mobile phones, tablets, and laptops.

[0003] Based on the sensing principle, touch technologies can be categorized into resistive, capacitive, surface acoustic wave, and optical. Touch devices using capacitive touch technology have broad development prospects due to their high durability, long lifespan, and support for multi-touch.

[0004] Summary of the Invention

[0005] On the one hand, a touch display panel is provided, which includes: a display panel and a touch panel arranged on one side of the display panel, the touch panel including a touch structure layer; the display panel including an anode layer, the touch structure layer including multiple touch lines, and the multiple touch lines defining multiple touch grids; wherein the touch display panel includes a first area and a second area, the multiple touch lines include multiple first touch lines located in the first area and multiple second touch lines located in the second area; the line width of at least one first touch line among the multiple first touch lines is smaller than the line width of at least one second touch line among the second touch lines; the reflectivity of the first area and the second area is equal, and the reflectivity is the ratio of incident light from one side of the touch structure layer, which passes through the multiple touch lines and irradiates the anode layer, and then is reflected by the anode layer to the side of the touch structure layer, to the incident light.

[0006] In some embodiments, the touch display panel further includes a third area, the plurality of touch lines include a plurality of third touch lines located in the third area, and a line width of at least one third touch line among the plurality of third touch lines is greater than a line width of at least one second touch line among the second touch lines.

[0007] In some embodiments, at least a portion of the multiple touch lines are provided with breaks, the break rate of the first zone is smaller than that of the second zone, and the break rate of the second zone is smaller than that of the third zone; the break rate is the ratio of the touch lines provided with breaks among the multiple touch lines in a zone to all the touch lines in the zone.

[0008] In some embodiments, the density of the breaks in the first zone is smaller than the density of the breaks in the second zone, and the density of the breaks in the second zone is smaller than the density of the breaks in the third zone; and / or the size of the breaks in the first zone is smaller than the size of the breaks in the second zone, and the size of the breaks in the second zone is smaller than the size of the breaks in the third zone.

[0009] In some embodiments, the fracture rate of the first zone is 20%, the fracture rate of the second zone is 23% to 27%, and the fracture rate of the third zone is 28% to 32%.

[0010] In some embodiments, at least a portion of the multiple touch lines are provided with openings, the opening ratio of the first zone is smaller than that of the second zone, and the opening ratio of the second zone is smaller than that of the third zone; the opening ratio is the ratio of the touch lines provided with openings among the multiple touch lines in a region to all the touch lines in the region.

[0011] In some embodiments, the density of the openings in the first zone is less than the density of the openings in the second zone, and the density of the openings in the second zone is less than the density of the openings in the third zone; and / or, the size of the openings in the first zone is less than the size of the openings in the second zone, and the size of the openings in the second zone is less than the size of the openings in the third zone.

[0012] In some embodiments, the open porosity of the first zone is 20%, the open porosity of the second zone is 23% to 27%, and the open porosity of the third zone is 28% to 32%.

[0013] In some embodiments, the shape of the orthographic projection of the opening on the display panel may be circular, rectangular, or elliptical.

[0014] In some embodiments, at least some of the multiple touch lines are metal touch lines, and another part of the touch lines are transparent conductive touch lines; the ratio of transparent conductive touch lines in the first area to the multiple first touch lines is smaller than the ratio of transparent conductive touch lines in the second area to the multiple second touch lines; the ratio of transparent conductive touch lines in the second area to the multiple second touch lines is smaller than the ratio of transparent conductive touch lines in the third area to the multiple third touch lines.

[0015] In some embodiments, the first area is a touch area, and the second area and the third area are non-touch areas; among the plurality of touch lines, the plurality of touch lines located in the first area are disconnected from the plurality of touch lines located in the second area and the third area.

[0016] In some embodiments, the fracture rate of the first area is 20%, the fracture rate of the second area in the non-touch area is 25%-40%, and the fracture rate of the third area in the non-touch area is 30%-50%.

[0017] In some embodiments, the touch structure layer includes a first touch structure layer and a second touch structure layer; the touch structure layer includes a plurality of touch sub-electrodes; the first touch structure layer includes a plurality of first touch sub-electrodes and a plurality of first connecting electrodes arranged along a first direction, and the plurality of first touch sub-electrodes and the plurality of first connecting electrodes are alternately distributed one by one and electrically connected in sequence to form first touch electrodes extending along the first direction; the first touch structure layer also includes a plurality of second touch sub-electrodes arranged in sequence and at equal intervals along a second direction, and the second touch structure layer includes a plurality of second connecting electrodes arranged along the second direction, and the plurality of second touch sub-electrodes and the plurality of second connecting electrodes are alternately distributed one by one and electrically connected in sequence to form second touch electrodes extending along the second direction; wherein, the first direction intersects with the second direction; the plurality of first touch sub-electrodes, the plurality of first connecting electrodes, the plurality of second touch sub-electrodes and the plurality of second connecting electrodes are composed of the plurality of touch lines.

[0018] In some embodiments, a portion of the multiple touch lines located in the boundary area between the adjacent first touch sub-electrode and the second touch sub-electrode is provided with a separation break, and the breaks provided on at least a part of the multiple touch lines include the separation break; the separation break divides the touch line into two touch sub-lines, one of the two touch sub-line segments belongs to the first touch sub-electrode, and the other belongs to the second touch sub-electrode, so that the adjacent first touch sub-electrode and the second touch sub-electrode are insulated from each other.

[0019] In some embodiments, the number of breaks on the multiple first touch lines, multiple second touch lines, and multiple third touch lines located in the boundary area between the adjacent first touch sub-electrode and the second touch sub-electrode is greater than the number of breaks on the multiple first touch lines, multiple second touch lines, and multiple third touch lines in the non-boundary area; wherein the non-boundary area is the area where the multiple touch lines are located except the boundary area.

[0020] In some embodiments, among the multiple touch grids defined by the multiple touch lines, the positive projection of each touch grid on the display panel is a hexagon, the number of breaks in each touch grid defined by the multiple touch lines located in the boundary area between the adjacent first touch sub-electrodes and the second touch sub-electrodes is 1, 2 or 3, and the number of breaks in each touch grid defined by the multiple touch lines located in the non-boundary area is 0, 1 or 2.

[0021] In some embodiments, among the multiple touch grids defined by the multiple touch lines, the positive projection of each touch grid on the display panel is a quadrilateral, the number of breaks in each touch grid defined by the multiple touch lines located in the boundary area between the adjacent first touch sub-electrodes and the second touch sub-electrodes is 1 or 2, and the number of breaks in each touch grid defined by the multiple touch lines located in the non-boundary area is 0 or 1.

[0022] In some embodiments, the touch structure layer includes multiple touch sub-electrodes, at least some of the multiple touch sub-electrodes are metal touch sub-electrodes, and another part of the touch sub-electrodes are transparent conductive touch sub-electrodes; the ratio of transparent conductive touch sub-electrodes in the first area to the multiple touch sub-electrodes is smaller than the ratio of transparent conductive touch sub-electrodes in the second area to the multiple touch sub-electrodes; the ratio of transparent conductive touch sub-electrodes in the second area to the multiple touch sub-electrodes is smaller than the ratio of transparent conductive touch sub-electrodes in the third area to the multiple touch sub-electrodes.

[0023] In some embodiments, the plurality of touch sub-electrodes in the first region are all metal touch sub-electrodes.

[0024] In another aspect, a touch display device is provided, comprising: a touch display panel as described in any one of the embodiments of the above aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] To more clearly illustrate the technical solutions of the present disclosure, the following briefly introduces the drawings required for use in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure, and those skilled in the art can also derive other drawings based on these drawings. Furthermore, the drawings described below are schematic diagrams and are not intended to limit the actual dimensions of the products, actual processes of the methods, actual timing of signals, and the like involved in the embodiments of the present disclosure.

[0026] FIG1A is a structural diagram of a touch display device according to some embodiments;

[0027] FIG1B is a plan view of a touch display device according to some embodiments;

[0028] Figure 1C is an enlarged view of area A in Figure 1B;

[0029] FIG2A is a schematic diagram of light reflection in a display area in some embodiments of the prior art;

[0030] FIG2B is a schematic diagram of light reflection in a non-display area in some embodiments of the prior art;

[0031] FIG3A is a structural diagram of a touch display panel according to some embodiments;

[0032] FIG3B is a plan view of a touch display panel according to some embodiments;

[0033] FIG4A is a line width structure diagram of a first touch line in a first region according to some embodiments of the present disclosure;

[0034] FIG4B is a line width structure diagram of a second touch line in a second region according to some embodiments of the present disclosure;

[0035] FIG4C is a line width structure diagram of a third touch line in a third region according to some embodiments of the present disclosure;

[0036] FIG5A is a diagram illustrating a structure of a break arrangement of a first touch line in a first region according to some embodiments of the present disclosure;

[0037] FIG5B is a diagram illustrating a structure of a break arrangement of a second touch line in a second region according to some embodiments of the present disclosure;

[0038] FIG5C is a diagram illustrating a structure of a break arrangement of a third touch line in a third region according to some embodiments of the present disclosure;

[0039] FIG5D is a schematic diagram of light reflection at a non-break portion of the touch line;

[0040] FIG5E is a schematic diagram of light reflection at the break of the touch line;

[0041] FIG6A is a structural diagram illustrating an opening arrangement of a first touch line in a first region according to some embodiments of the present disclosure;

[0042] FIG6B is a diagram illustrating a structure of openings for second touch lines in the second region according to some embodiments of the present disclosure;

[0043] FIG6C is a diagram illustrating a structure of openings for a third touch line in a third region according to some embodiments of the present disclosure;

[0044] FIG6D is a schematic diagram of light reflection at a non-opening portion of a touch line according to some embodiments of the present disclosure;

[0045] FIG6E is a schematic diagram of light reflection at an opening of a touch line according to some embodiments of the present disclosure;

[0046] FIG6F is a schematic diagram of materials for a touch line according to some embodiments of the present disclosure;

[0047] FIG7A is a structural diagram of a touch structure layer according to some embodiments of the present disclosure;

[0048] FIG7B is a cross-sectional view of FIG7A taken at EE;

[0049] FIG7C is a cross-sectional view of some other embodiments of FIG7A at EE;

[0050] FIG8A is an enlarged structural diagram of a touch unit according to some embodiments of the present disclosure;

[0051] FIG8B is another enlarged structural diagram of a touch unit according to some embodiments of the present disclosure;

[0052] FIG9A is a diagram illustrating a configuration structure of a touch material in a third region according to some embodiments of the present disclosure;

[0053] FIG9B is a diagram illustrating a configuration structure of a touch material in the second region according to some embodiments of the present disclosure;

[0054] FIG9C is a diagram illustrating a configuration structure of a touch material in a first region according to some embodiments of the present disclosure;

[0055] FIG10A is a schematic diagram showing the reflection of light passing through a metal touch sub-electrode;

[0056] FIG10B is a schematic diagram showing the reflection of light passing through a transparent conductive touch sub-electrode. DETAILED DESCRIPTION

[0057] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in some embodiments of the present disclosure. Obviously, the embodiments described are only some embodiments of the present disclosure, not all embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present disclosure.

[0058] Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and its other forms, such as the third person singular form "comprises" and the present participle form "comprising", are to be interpreted as open and inclusive, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" are intended to indicate that the particular features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the particular features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0059] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0060] “At least one of A, B and C” has the same meaning as “at least one of A, B or C” and both include the following combinations of A, B and C: A only, B only, C only, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B and C.

[0061] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0062] The use of "adapted to" or "configured to" herein is intended to be open and inclusive language that does not exclude devices adapted or configured to perform additional tasks or steps.

[0063] Additionally, the use of “based on” is meant to be open and inclusive, as a process, step, calculation, or other action “based on” one or more stated conditions or values ​​may, in practice, be based on additional conditions or values ​​beyond those stated.

[0064] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of deviation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0065] As used herein, "parallel", "perpendicular", and "equal" include the situations described and situations similar to the situations described, and the range of the similar situations is within an acceptable deviation range, wherein the acceptable deviation range is as determined by a person of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the specific quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range of approximate parallelism can be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range of approximate perpendicularity can also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range of approximate equality can be, for example, that the difference between the two equals is less than or equal to 5% of either one.

[0066] It will be understood that when a layer or element is referred to as being on another layer or substrate, it can be directly on the other layer or substrate, or intervening layers may be present therebetween.

[0067] Exemplary embodiments are described herein with reference to cross-sectional and / or plan views that are idealized exemplary drawings. In the drawings, the thicknesses of layers and regions are exaggerated for clarity. Therefore, variations in shape relative to the drawings due to, for example, manufacturing techniques and / or tolerances are contemplated. Therefore, the exemplary embodiments should not be construed as limited to the shapes of the regions shown herein, but rather include deviations in shape due to, for example, manufacturing. For example, an etched region shown as a rectangle will typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to illustrate the actual shape of regions of the device and are not intended to limit the scope of the exemplary embodiments.

[0068] With the development of display technology, flexible multiple layer on cell (FMLOC) technology is gradually being applied to organic light emitting diode (OLED) display devices. The flexible multiple layer on cell technology FMLOC integrates the display structure and the touch structure, which can meet the development trend of light, thin, foldable and narrow-frame display technology.

[0069] At present, with the emergence of flexible products, in related technologies, touch technology adopts a metal mesh structure design. The metal mesh has the advantages of low resistance, small thickness and fast response speed. Due to the thinner product and increased resistance and capacitance load (RC Loading), the single-layer metal mesh is designed as an FMLOC structure.

[0070] In some embodiments, as shown in FIG1A , a touch display device 1000 includes a stacked display panel 10 and a touch structure layer 20 , wherein the touch structure layer 20 is located on the display surface side of the display panel 10 , wherein the display panel 10 includes an anode layer, and the touch structure layer 20 includes a metal grid.

[0071] 1B and 1C , taking the touch display device 1000 as a mobile phone as an example, the mobile phone screen is a notch screen, which has a non-display area BB (notch area) directly above the screen. The area outside the notch area is a display area AA, and devices such as a camera are provided in the notch area. A through hole needs to be drilled in the area to place the camera in the through hole. A metal grid for implementing touch control is distributed in the display area and the non-display area, wherein the metal grid is composed of multiple metal wires 201 ′. For example, as shown in FIG1C , multiple metal wires enclose a metal grid, and the shape of the metal grid is hexagonal or quadrilateral. Due to process limitations around the camera hole, the actual line width of the metal line 201' located around the hole deviates from the designed line width. In order to avoid this line width deviation, a dispersion compensation design is made. For example, in the area close to the through-hole, the line width of the metal line 201' is larger, and in the area far from the through-hole, the line width of the metal line 201' is smaller. As shown in Figure 1C, the metal grid in the display area AA is not designed with dispersion compensation, and the compensation value ΔCD1 is 0. The metal grid in the non-display area BB is designed with dispersion compensation, and the compensation value ΔCD2 is x. The line width of the metal grid in the display area AA is smaller than the line width of the metal grid in the non-display area BB.

[0072] However, under dark conditions with strong reflected light, areas with dispersion compensation and areas without dispersion compensation exhibit distinct optical boundaries with distinct bright and dark zones. This distinct boundary optical defect is caused by the metal grid blocking light from side angles, resulting in different amounts of light reflected from the anode. When light is directed at the touch display panel at a 45° angle to the plane of the touch display panel, the optical defect at the boundary is visible to the human eye at a 45° angle to the other side of the plane. As shown in Figures 2A and 2B, Figure 2A shows the reflection situation presented by the area without optical compensation (i.e., the display area). For example, Figure 2A shows the path diagram of light passing through the touch line at DD in Figure 1C; Figure 2B shows the reflection situation presented by the area with optical compensation (i.e., the non-display area BB). For example, Figure 2B shows the path diagram of light passing through the touch line at CC in Figure 1C. According to Figures 2A and 2B, the reflection amount of the area without optical compensation (i.e., the display area AA) is greater than that of the area with optical compensation (i.e., the non-display area BB). This is because the metal wire 201' in the area with optical compensation is wider, blocking part of the light from the outside to the anode layer, thereby causing the anode layer to reflect less light. The anode layer reflected light in the area with a larger metal mesh line width is less than the anode layer reflected light in the area with a smaller metal mesh line width. Therefore, the touch display panel exhibits poor bright and dark partitioning, affecting the display effect and thus the user experience.

[0073] To solve this problem, an embodiment of the present disclosure provides a touch display device 1000. The touch display device 1000 can be a product with touch function and image display function. For example, the touch display device can be a display with touch function, a television, a personal computer, a laptop computer, a billboard, a digital photo frame, a laser printer with display function, a telephone, a mobile phone, a digital camera, an electronic picture screen, a portable camcorder, a viewfinder, a monitor, a navigator, a vehicle, a large-area wall or information query equipment (such as business query equipment of e-government, banks, hospitals, power departments, etc.), a car display, etc. The embodiment of the present disclosure does not limit the use of the touch display device. In addition, the touch display device can be a rollable or bendable flexible touch display device, or a flat-plate rigid touch display device. For another example, the touch display device 1000 can also be a touch display panel 100 (also called a touch display screen). For another example, in addition to the touch display panel 100, the touch display device 1000 can also include other electronic components, such as a touch chip and a motherboard. The touch chip is coupled to the touch display panel and is configured to determine a touch location (e.g., touch coordinates) based on a touch signal provided by the touch display panel. The mainboard is coupled to the touch display panel and is configured to output corresponding image data to the touch display panel based on the touch location determined by the touch chip.

[0074] The following introduces a touch display panel 100 and a touch display device 1000 provided by the present disclosure.

[0075] In the present disclosure, Figures 3A and 3B are structural diagrams of the touch display panel 100, Figures 7A, 9A, 9B and 9C are all enlarged views of the touch display panel 100, Figures 4A to 4C, Figures 5A to 5C, Figures 6A to 6C, Figures 8A and 8B are further enlarged views of Figures 7A, 9A, 9B and 9C, and Figures 7B and 7C are cross-sectional views at EE in Figure 7A. To facilitate the description of the touch display panel 100, Figures 7B and 7C only illustrate schematic diagrams of the touch structure layer.

[0076] Some embodiments of the present disclosure provide a touch display panel 100, as shown in FIG3A . FIG3A is a side view of the touch display panel 100 provided in some embodiments, and FIG3B is a top view of FIG3A . Referring to FIG3A and FIG3B , the touch display panel 100 includes a display panel 10 and a touch panel 20 ′ disposed on one side of the display panel 10. The touch panel 20 ′ includes a touch structure layer 20. The touch structure layer 20 includes a plurality of touch lines 201. The plurality of touch lines 201 define a plurality of touch grids 202. It should be noted that FIG3B only illustrates the touch lines in a local area. In practice, the touch structure layer 20 is distributed throughout the entire planar area of ​​the touch display panel 100.

[0077] For example, referring to FIG3A , the display panel 10 is a screen with a display function, which can be coupled to the mainboard described above and configured to receive image data sent by the mainboard and display a corresponding image. For example, the display panel 10 can be a self-luminous display panel, such as an OLED (Organic Light Emitting Diode) display panel, a QLED (Quantum Dot Light Emitting Diodes) display panel, a micro-LED (including: Mini LED mini light-emitting diodes or Micro LED micro light-emitting diodes) display panel, etc. When the display panel 10 in the touch display device 1000 is a liquid crystal display panel, the touch display device 1000 is a liquid crystal touch display device 1000; when the display panel 10 in the touch display device 1000 is a self-luminous display panel, the touch display device 1000 is a self-luminous touch display device 1000.

[0078] The display panel 10 has a display surface and a non-display surface that are opposed to each other along the thickness direction of the display panel 10. A user can view images facing the display surface of the display panel 10. In other words, the side of the display surface of the display panel 10 that is away from the non-display surface is the side for the user to view, and this side is hereinafter referred to as the display side of the display panel 10.

[0079] 3A , the touch structure layer 20 is configured to provide a touch signal, which can reflect the touch position of the user on the display panel 10. The touch structure layer 20 can be coupled to the touch chip mentioned above to provide the touch signal to the touch chip.

[0080] In some possible embodiments, the touch structure layer 20 may be located on the display side of the display panel 10. The touch structure layer 20 may be a component independent of the display panel 10; illustratively, the display panel 10 and the touch structure layer 20 are both formed separately, and then the two are bonded together by an adhesive such as an optically clear adhesive (OCA). The touch structure layer 20 may also be a structure integrated on the display panel 10. illustratively, with the display panel 10 as a substrate, the touch structure layer 20 is formed on the display surface of the display panel 10, and at this time the touch structure layer 20 is in direct contact with the display surface of the display panel 10. For example, the display panel 10 is an OLED display panel or a QLED display panel, and the display panel 10 may include a display substrate and an encapsulation layer covering the display substrate; the touch structure layer 20 may be formed on the encapsulation layer. illustratively, other functional layers may also be provided between the touch structure layer 20 and the display surface of the display panel 10.

[0081] In some other possible implementations, the touch structure layer 20 may also be disposed inside the display panel 10. For example, the display panel 10 includes a first substrate and a second substrate facing each other, and the touch structure layer 20 may be located between the first substrate and the second substrate.

[0082] In the application of capacitive touch technology, multiple film layer structures for realizing touch sensing can be stacked to form a touch layer, and the touch layer includes multiple touch electrodes. Capacitive touch technology can be divided into self-capacitive touch technology and mutual-capacitive touch technology. When the touch layer applies self-capacitive touch technology, the touch electrode and the ground form a capacitor, that is, self-capacitance. When a finger touches the touch display device, the capacitance of the finger will be superimposed on the touch electrode, causing the capacitance formed by the touch electrode and the ground to change. According to the change in the capacitance formed by the multiple touch electrodes and the ground before and after the touch, the coordinates of the touch point can be determined to realize touch sensing. When the touch layer applies mutual-capacitive touch technology, the multiple touch electrodes can be divided into touch drive electrodes and touch sensing electrodes. The touch drive electrodes can be configured to transmit touch drive signals, and the touch sensing electrodes can be configured to transmit touch sensing signals, thereby forming a stable capacitance between the touch drive electrodes and the touch sensing electrodes. When a finger touches a touch display device, it affects the coupling between the touch drive electrode and the touch sensing electrode near the touch location, thereby changing the capacitance between the two touch electrodes. Similarly, the coordinates of the touch point can be determined based on the change in capacitance between the drive electrode and the sensing electrode before and after the touch.

[0083] For simplicity of description, the following explanation of the solution of the present disclosure is given by taking an example in which a touch display device applies mutual capacitive touch technology, the touch layer is arranged on the side of the light-emitting surface of the display panel, and a film layer in the display panel closest to the touch layer is used as the base layer of the touch layer.

[0084] Some embodiments of the present disclosure provide a touch structure layer, which can be applied to the above-mentioned touch display device, and can also be applied to other touch devices, without further limitation.

[0085] The display panel 10 may include a plurality of sub-pixels, each of which includes a pixel driving circuit and a light-emitting device coupled to each other, and the pixel driving circuit is configured to drive the light-emitting device to emit light. The pixel driving circuit may include a plurality of electronic device components such as transistors and capacitors. For example, each pixel driving circuit may include three transistors and one capacitor, forming a 3T1C (i.e., one driving transistor, two switching transistors and one capacitor). It may also include more than three transistors and at least one capacitor, such as a 4T1C (i.e., one driving transistor, three switching transistors and one capacitor), a 5T1C (i.e., one driving transistor, four switching transistors and one capacitor), or a 7T2C (i.e., one driving transistor, six switching transistors and two capacitors). Among them, the transistor may be a thin film transistor (TFT), a field effect transistor (MOS), or other switching devices with the same characteristics. The light-emitting device may be an OLED or a QLED.

[0086] In order to realize the structure of the above-mentioned sub-pixel, exemplarily, referring to FIG3A , the display panel 10 includes: a substrate 11, a pixel driving circuit layer 12, a light-emitting device layer 13 and a first packaging layer 14 stacked in sequence, wherein the light-emitting device layer 13 includes an anode layer 131, and the first packaging layer 14 can be a packaging film or a packaging substrate.

[0087] The structure of the substrate 11 can be selected and set according to actual needs.

[0088] For example, the substrate 11 may be a rigid substrate. The rigid substrate may include, for example, a glass substrate PMMA (Polymethyl methacrylate). In this case, the display panel 10 may be a rigid display panel.

[0089] For another example, the substrate 11 may be a flexible substrate. The flexible substrate may include, for example, a PET (Polyethylene terephthalate) substrate, a PEN (Polyethylene naphthalate diformic acid glycol ester) substrate, or a PI (Polyimide) substrate. In this case, the display panel 10 may be a flexible display panel.

[0090] In some embodiments, the touch display panel 100 further includes a glass cover 15 located on a side of the display panel 10 away from the touch structure layer 20 to protect the display panel 10 .

[0091] In some embodiments, the touch panel 20' further includes a second encapsulation layer 26, which encapsulates the touch structure layer 20 to isolate the touch structure layer from the outside. The material of the second encapsulation layer 26 can be an inorganic insulating material such as nitride, oxide, oxynitride, nitrate, carbide, or any combination thereof. Alternatively, the material can be an organic insulating material such as acrylic, hexamethyldisiloxane, polyacrylate, polycarbonate, or polystyrene.

[0092] Referring to FIG3B , FIG3B is a plan view of the touch display panel 100, wherein the touch display panel 100 includes a first area 101 (touch area) and a non-touch area 102. The first area 101 is the area on the touch display panel 100 used to display images and can also be touched, corresponding to the display area AA in FIG1B . The non-touch area 102 is embedded within the first area 101. For example, in some embodiments, the touch display panel 10 is a notch screen, and the notch area does not display images. The notch area is the non-touch area 102. The first area 101 semi-surrounds the non-touch area 102. The non-touch area 102 includes a second area 1021 and a through-hole area 1023. The through-hole area 1023 is provided with a camera and other devices.

[0093] As shown in Figures 4A and 4B, the multiple touch lines 201 include multiple first touch lines 2011 located in the first area 101 and multiple second touch lines 2012 located in the second area 1021; the line width of at least one first touch line 2011 among the multiple first touch lines 2011 is smaller than the line width of at least one second touch line 2012 among the multiple second touch lines 2012. This is because process conditions limit the width of the touch line 201 around the through-hole region 1023, causing deviations in the width of the touch line 201. To prevent this deviation, an optical compensation design is implemented, resulting in a larger width for the touch lines 201 closer to the through-hole region 1023. Furthermore, the second region 1021 is closer to the through-hole region 1023 than the first region 101. Therefore, the width of at least one first touch line 2011 among the plurality of first touch lines 2011 is smaller than the width of at least one second touch line 2012 among the plurality of second touch lines 2012. For details, please refer to the previous description.

[0094] As shown in Figures 4A, 4B, and 4C, the line width of the first touch line 2011 is L1, the line width of the second touch line 2012 is L2, and the line width of the third touch line 2013 is L3. It can be seen from the figures that L1<L2<L3. As mentioned above, the wider the line width of the touch line 201, the more incident light entering from the outside is blocked by the touch line 201, and the more light reflected from the anode layer is blocked from a side view. Therefore, it appears that the bright and dark partitions are poor, affecting the display effect.

[0095] For example, the touch display panel 100 may be a rectangle, or a rounded rectangle or other shapes similar to a rectangle.

[0096] In some embodiments, in the touch display panel 100 provided by the present disclosure, the reflectivity of the first area 101 and the second area 1021 are equal. The reflectivity is the ratio of the incident light from one side of the touch structure layer 20, which passes through the plurality of touch lines 201 and strikes the anode layer 131, to the incident light. The light path diagram can be seen in Figures 2A and 2B.

[0097] It can be understood that when the reflectivity of the first area 101 and the second area 1021 is equal, the reflection amount is also the same. Therefore, even if the line widths of the touch lines 201 in different areas of the entire touch display panel 100 are different, since the reflectivity of the first area 101 and the second area 1021 are set to be equal, that is, the incident light passes through multiple touch lines 201 and shines on the anode layer 131, and the ratio of the light reflected by the anode layer 131 to the side of the touch structure layer 20 is equal to the incident light, the display screen of the touch display panel 100 will not show poor bright and dark partitioning, which can reduce the visualization risk of the reflective structure and improve the display effect of the touch display panel 100.

[0098] 3B , the touch display panel 100 further includes a third area 1022. The third area 1022 is a portion of the non-touch area 102. The non-touch area 102 includes two through-hole areas 1023. The third area 1022 is located between the two through-hole areas 1023 of the non-touch area 102. The area of ​​the non-touch area 102 other than the through-hole area 1023 and the third area 1022 is the second area 1021.

[0099] As shown in FIG4C , the plurality of touch lines 201 further include a plurality of third touch lines 2013 located in the third area 1022 , and the line width of at least one third touch line 2013 in the plurality of third touch lines 201 is greater than the line width of at least one second touch line 2012 in the plurality of second touch lines 2012 .

[0100] 4A and 4B , the line width of at least one first touch line 2011 among the plurality of first touch lines 2011 is smaller than the line width of at least one second touch line 2012 among the plurality of second touch lines 2012, and the line width of at least one second touch line 2012 among the plurality of second touch lines 2012 is smaller than the line width of at least one third touch line 2013 among the plurality of third touch lines 2013. This is because process conditions limit the periphery of the through-hole region 1023, causing deviations in the line width of the touch line 201 around the through-hole region 1023. To prevent this deviation in the line width of the touch line 201, an optical compensation design is implemented, resulting in a larger line width for the touch lines 201 closer to the through-hole region 1023. Furthermore, the third region 1022 is closer to the through-hole region 1023 than the first and second regions 101 and 1021. Therefore, the line width of at least one first touch line 2011 among the plurality of first touch lines 2011 is smaller than the line width of at least one second touch line 2012 among the plurality of second touch lines 2012, and the line width of at least one second touch line 2012 among the plurality of second touch lines 2012 is smaller than the line width of at least one third touch line 2013 among the plurality of third touch lines 2013. For details, please refer to the previous description.

[0101] In some embodiments, the reflectivity of the third area 1022 is equal to the reflectivity of the first area 101 and the second area 1021. It is understood that when the reflectivities of the first area 101, the second area 1021, and the third area 1022 are equal, the amount of reflection is also the same. Therefore, even if the touch lines 201 in different areas of the entire touch display panel 100 have different line widths, because the reflectivities of the first area 101, the second area 1021, and the third area 1022 are equal, that is, the incident light passes through the multiple touch lines 201 and illuminates the anode layer 131. The proportion of light reflected by the anode layer 131 to the touch structure layer 20 is equal to the incident light. As a result, the display image of the touch display panel 100 will not show poor bright and dark zoning, which can reduce the visualization risk of reflective structures and improve the display quality of the touch display panel 100.

[0102] Several embodiments for making the reflectivity of the first area 101 , the second area 1021 , and the third area 1022 of the touch display panel 100 equal are described below.

[0103] In one implementation, referring to FIG. 5A , FIG. 5B , and FIG. 5C , which respectively illustrate the arrangement structures of the touch lines in the first area 101 , the second area 1021 , and the third area 1022 , at least a portion of the multiple touch lines 201 is provided with a break 2010 . A break 2010 provided on a touch line 201 means that the touch line 201 is disconnected at the break 2010 , i.e., a portion of the touch line 201 is missing at the break 2010 . At the break 2010 , light incident from the outside is not blocked, and the light can pass through the break 2010 and be incident on the anode layer 131 , thereby improving the reflectivity of the light.

[0104] As shown in Figures 5D and 5E, Figure 5D shows a schematic diagram of the path of light at a position where the break 2010 is not set on the touch line 201, and Figure 5E shows a schematic diagram of the path of light at a position where the break 2010 is set on the touch line 201. It can be seen that at the break 2010, the light entering from the outside is not blocked, and the light can pass through the break 2010 and be incident on the anode layer 131, thereby improving the reflectivity of the light.

[0105] In some embodiments, the break rate of the first area 101 is smaller than that of the second area 1021, and the break rate of the second area 1021 is smaller than that of the third area 1022; wherein the break rate is the ratio of the touch lines 201 with breaks 2010 among the multiple touch lines 201 in a region to all the touch lines 201 in the region. 4A , 4B , and 4C , the line widths of the touch lines 201 in the first, second, and third regions 101, 1021, and 1022 are in the relationship of L1 < L2 < L3, i.e., the third touch line 2013 has the widest line width and blocks the most light. Therefore, the relationship between the break rates of the first, second, and third regions 101, 1021, and 1022 is set as described above. This ensures that the reflectivities of the first, second, and third regions 101, 1021, and 1022 are equal, and the display image of the touch display panel 100 does not exhibit poor light and dark partitioning. This reduces the risk of visualization of the reflective structure and improves the display effect of the touch display panel 100.

[0106] 5A , 5B and 5C , in some embodiments, the density of the nicks 2010 in the first region 101 is less than the density of the nicks 2010 in the second region 1021 , and the density of the nicks 2010 in the second region 1021 is less than the density of the nicks 2010 in the third region 1022 .

[0107] It should be noted that the density of the fractures 2010 reflects the density of each area or the number of fractures 2010. By setting the density of the fractures 2010 in the first area 101 to be less than the density of the fractures 2010 in the second area 1021, and the density of the fractures 2010 in the second area 1021 to be less than the density of the fractures 2010 in the third area 1022, it can be understood that the fractures 2010 in the first area 101 are arranged more sparsely than the fractures 2010 in the second area 1021, and the fractures 2010 in the second area 1021 are arranged more sparsely than the fractures 2010 in the third area 1022. Similarly, it can also be understood that the fractures 2010 in the first area 101 are arranged more sparsely than the fractures 2010 in the second area 1021. The number of the breaks 2010 is smaller than the number of the breaks 2010 in the second area 1021, and the number of the breaks 2010 in the second area 1021 is smaller than the number of the breaks 2010 in the third area 1022. Therefore, the density relationship of the breaks 2010 in the first area 101, the second area 1021 and the third area 1022 is set as described above, which can ensure that the reflectivity of the first area 101, the second area 1021 and the third area 1022 is equal, and thus the display screen of the touch display panel 100 will not show poor bright and dark partitioning, which can reduce the visualization risk of the reflective structure and improve the display effect of the touch display panel 100.

[0108] In other embodiments, the size of the nick 2010 in the first region 101 is smaller than the size of the nick 2010 in the second region 1021 , and the size of the nick 2010 in the second region 1021 is smaller than the size of the nick 2010 in the third region 1022 .

[0109] It should be noted that the size of the fracture 2010 reflects the area size of the fracture 2010. The size of the fracture 2010 in the first zone 101 is smaller than the size of the fracture 2010 in the second zone 1021. The size of the fracture 2010 in the second zone 1021 is smaller than the size of the fracture 2010 in the third zone 1022. It can be understood that the area size of the fracture 2010 in the first zone 101 is smaller than the area size of the fracture 2010 in the second zone 1021. The area size is smaller than the area size of the break 2010 in the third area 1022. Therefore, the area size relationship of the break 2010 in the first area 101, the second area 1021 and the third area 1022 is set as described above, which can ensure that the reflectivity of the first area 101, the second area 1021 and the third area 1022 is equal, and then the display screen of the touch display panel 100 will not show poor bright and dark partitioning, which can reduce the visualization risk of the reflective structure and improve the display effect of the touch display panel 100.

[0110] In some embodiments, in the first zone 101, the second zone 1021 and the third zone 1022, the setting method of the break 2010 can also be a combination of the above two embodiments, that is, the density of the break 2010 in the first zone 101 is smaller than the density of the break 2010 in the second zone 1021, and the density of the break 2010 in the second zone 1021 is smaller than the density of the break 2010 in the third zone 1022; and the size of the break 2010 in the first zone 101 is smaller than the size of the break 2010 in the second zone 1021, and the size of the break 2010 in the second zone 1021 is smaller than the size of the break 2010 in the third zone 1022. Exemplarily, by combining the above two embodiments, the density and area size relationship of the fractures 2010 of the first zone 101, the second zone 1021 and the third zone 1022 are set as described above, which can ensure that the reflectivity of the first zone 101, the second zone 1021 and the third zone 1022 are equal, and thus the display screen of the touch display panel 100 will not show poor bright and dark partitioning, which can reduce the visualization risk of the reflective structure and improve the display effect of the touch display panel 100.

[0111] In some embodiments, the fracture rate of the first region 101 is 20%, the fracture rate of the second region 1021 is 23% to 27%, and the fracture rate of the third region 1022 is 28% to 32%.

[0112] For example, for example, the fracture rate of the first zone 101 is 20%, the fracture rate of the second zone 1021 is 23%, and the fracture rate of the third zone 1022 is 28%. For another example, the fracture rate of the first zone 101 is 20%, the fracture rate of the second zone 1021 is 25%, and the fracture rate of the third zone 1022 is 30%. For another example, the fracture rate of the first zone 101 is 20%, the fracture rate of the second zone 1021 is 27%, and the fracture rate of the third zone 1022 is 32%. In the above-mentioned different fracture rates for different areas, the fracture rate of the first zone 101 is less than that of the second zone 1021. The fracture ratio of the second area 1021 is smaller than that of the third area 1022. With this arrangement, more incident light from one side of the touch structure layer 20 can pass through the multiple fractures 2010 of the multiple touch lines 201 and illuminate the anode layer 131. The anode layer 131 then reflects the light to the other side of the touch structure layer 20, thereby enhancing the reflectivity. Different fracture ratios can change the reflectivity. When obtaining the fracture ratios corresponding to different areas in the above example, the reflectivities of the first area 101, the second area 1021, and the third area 1022 can be made consistent, thereby ultimately improving the problem of poor regional optical quality.

[0113] In another implementation, as shown in Figures 6A, 6B and 6C, Figures 6A, 6B and 6C respectively represent structural diagrams of the touch lines of the first area 101, the second area 1021 and the third area 1022. At least a portion of the touch lines 201 among the multiple touch lines 201 is provided with an opening 2020, wherein the opening 2020 is a hole provided on the touch line 201, that is, a portion of the touch line 201 is missing at the opening 2020. At the opening 2020, light entering from the outside is not blocked, and the light can pass through the opening 2020 and be incident on the anode layer 131, thereby improving the reflectivity of the light.

[0114] The difference between the opening 2020 and the break 2010 is that in the touch line 201 with the opening 2020, the touch line 201 is still connected, and in the touch line 201 with the break, the touch line 201 is broken and divided into two. Both designs can increase the incidence rate of external incident light on the anode layer 131.

[0115] As shown in Figures 6D and 6E, Figure 6D shows a schematic diagram of the path of light at a position where the opening 2020 is not set on the touch line 201, and Figure 6E shows a schematic diagram of the path of light at a position where the opening 2020 is set on the touch line 201. It can be seen that at the opening 2020, the light entering from the outside is not blocked, and the light can pass through the opening 2020 and be incident on the anode layer 131, thereby improving the reflectivity of the light.

[0116] In some embodiments, the opening ratio of the first area 101 is smaller than that of the second area 1021, and the opening ratio of the second area 1021 is smaller than that of the third area 1022; wherein the opening ratio is the ratio of the touch lines 201 having the openings 2020 among the multiple touch lines 201 in a region to all the touch lines 201 in the region. 4A , 4B , and 4C , the line widths of the touch lines 201 in the first, second, and third regions 101, 1021, and 1022 are in the relationship of L1 < L2 < L3, i.e., the third touch line 2013 has the widest line width and blocks the most light. Therefore, the relationship between the break rates of the first, second, and third regions 101, 1021, and 1022 is set as described above. This ensures that the reflectivities of the first, second, and third regions 101, 1021, and 1022 are equal, and the display image of the touch display panel 100 does not exhibit poor light and dark partitioning. This reduces the risk of visualization of the reflective structure and improves the display effect of the touch display panel 100.

[0117] In some embodiments, the density of the openings 2020 in the first region 101 is lower than the density of the openings 2020 in the second region 1021 , and the density of the openings 2020 in the second region 1021 is lower than the density of the openings 2020 in the third region 1022 .

[0118] It should be noted that the density of the openings 2020 reflects the density of each area or the number of the openings 2020. By setting the density of the openings 2020 in the first area 101 to be less than the density of the openings 2020 in the second area 1021, and the density of the openings 2020 in the second area 1021 to be less than the density of the openings 2020 in the third area 1022, it can be understood that the arrangement of the openings 2020 in the first area 101 is sparser than that of the openings 2020 in the second area 1021, and the arrangement of the openings 2020 in the second area 1021 is sparser than that of the openings 2020 in the third area 1022. Similarly, it can also be understood that the arrangement of the openings 2020 in the first area 101 is sparser than that of the openings 2020 in the second area 1021. The number of the openings 2020 in the middle area 1020 is smaller than the number of the openings 2020 in the second area 1021, and the number of the openings 2020 in the second area 1021 is smaller than the number of the openings 2020 in the third area 1022. Therefore, the density relationship of the openings 2020 in the first area 101, the second area 1021 and the third area 1022 is set as described above, which can ensure that the reflectivity of the first area 101, the second area 1021 and the third area 1022 is equal, and thus the display screen of the touch display panel 100 will not show poor bright and dark partitioning, which can reduce the visualization risk of the reflective structure and improve the display effect of the touch display panel 100.

[0119] In other embodiments, the size of the opening 2020 in the first zone 101 is smaller than the size of the opening 2020 in the second zone 1021 , and the size of the opening 2020 in the second zone 1021 is smaller than the size of the opening 2020 in the third zone 1022 .

[0120] It should be noted that the size of the opening 2020 reflects the area size of the opening 2020. The size of the opening 2020 in the first zone 101 is smaller than the size of the opening 2020 in the second zone 1021. The size of the opening 2020 in the second zone 1021 is smaller than the size of the opening 2020 in the third zone 1022. It can be understood that the area size of the opening 2020 in the first zone 101 is smaller than the area size of the opening 2020 in the second zone 1021. The area size is smaller than the area size of the opening 2020 in the third area 1022. Therefore, the area size relationship of the opening 2020 in the first area 101, the second area 1021 and the third area 1022 is set as described above, which can ensure that the reflectivity of the first area 101, the second area 1021 and the third area 1022 is equal, and then the display screen of the touch display panel 100 will not show poor bright and dark partitioning, which can reduce the visualization risk of the reflective structure and improve the display effect of the touch display panel 100.

[0121] In some embodiments, in the first zone 101, the second zone 1021 and the third zone 1022, the arrangement of the openings 2020 may also be a combination of the above two embodiments, that is, the density of the openings 2020 in the first zone 101 is smaller than the density of the openings 2020 in the second zone 1021, and the density of the openings 2020 in the second zone 1021 is smaller than the density of the openings 2020 in the third zone 1022; and the size of the openings 2020 in the first zone 101 is smaller than the size of the openings 2020 in the second zone 1021, and the size of the openings 2020 in the second zone 1021 is smaller than the size of the openings 2020 in the third zone 1022. For example, by combining the above two embodiments, the density and area size relationship of the openings 2020 of the first zone 101, the second zone 1021 and the third zone 1022 are set as described above, which can ensure that the reflectivity of the first zone 101, the second zone 1021 and the third zone 1022 are equal, and thus the display screen of the touch display panel 100 will not show poor bright and dark partitioning, which can reduce the visualization risk of the reflective structure and improve the display effect of the touch display panel 100.

[0122] In some embodiments, the opening rate of the first region 101 is 20%, the opening rate of the second region 1021 is 23% to 27%, and the opening rate of the third region 1022 is 28% to 32%.

[0123] For example, the opening rate of the first zone 101 is 20%, the opening rate of the second zone 1021 is 23%, and the opening rate of the third zone 1022 is 28%. For another example, the opening rate of the first zone 101 is 20%, the opening rate of the second zone 1021 is 25%, and the opening rate of the third zone 1022 is 30%. For another example, the opening rate of the first zone 101 is 20%, the opening rate of the second zone 1021 is 27%, and the opening rate of the third zone 1022 is 32%. In the above-mentioned different opening rates for different areas, the opening rate of the first zone 101 is less than that of the second zone 1021. The aperture ratio of the second area 1021 is smaller than that of the third area 1022. This configuration allows more incident light from one side of the touch structure layer 20 to pass through the multiple openings 2020 of the multiple touch lines 201 and illuminate the anode layer 131. The light is then reflected by the anode layer 131 to the other side of the touch structure layer 20, thereby enhancing the reflectivity. Different aperture ratios can change the reflectivity. When the aperture ratios corresponding to different areas in the above example are obtained, the reflectivities of the first area 101, the second area 1021, and the third area 1022 can be made consistent, thereby ultimately improving the problem of poor regional optical performance.

[0124] In some embodiments, the shape of the orthographic projection of the opening 2020 on the display panel 10 can be circular, rectangular, or elliptical.

[0125] For example, the orthographic projection of the opening 2020 on the display panel 10 is in the shape of a circle, rectangle, or ellipse, etc., although the shape is not limited here. The maximum size of the opening 2020 provided in the first area 101, the second area 1021, and the third area 1022 is smaller than the line width of the first touch line 2011, the second touch line 2012, and the third touch line 2013.

[0126] In yet another implementation, as shown in FIG6A to FIG6C , at least a portion of the touch lines 201 among the plurality of touch lines 201 are provided with openings 2020, and at least another portion of the touch lines 201 are provided with breaks 2010, and the break rate of the first area 101 is smaller than the break rate of the second area 1021, and the break rate of the second area 1021 is smaller than the break rate of the third area 1022, and / or the opening rate of the first area 101 is smaller than the opening rate of the second area 1021, and the opening rate of the second area 1021 is smaller than the opening rate of the third area 1022. Exemplarily, the sum of the fracture rate and the opening rate of the first zone 101 is smaller than the sum of the fracture rate and the opening rate of the second zone 1021, and smaller than the sum of the fracture rate and the opening rate of the third zone 1022. In each region, there is no limit on the density and size of the fractures 2010, and the density and size of the openings 2020, as long as the reflectivity of the first zone 101, the second zone 1021 and the third zone 1022 are equal.

[0127] In another implementation, as shown in FIG6F , at least some of the multiple touch lines 201 are metal touch lines 201a, while other touch lines 201 are transparent conductive touch lines 201b. In FIG6F , touch lines without a pattern fill are used as transparent conductive touch lines 201b, and touch lines with a pattern fill are used as metal touch lines 201a. The ratio of the transparent conductive touch lines 201b to the plurality of first touch lines 201 in the first region 101 is smaller than the ratio of the transparent conductive touch lines 201b to the plurality of second touch lines 201 in the second region 1021. Furthermore, the ratio of the transparent conductive touch lines 201b to the plurality of second touch lines 201 in the second region 1021 is smaller than the ratio of the transparent conductive touch lines 201b to the plurality of third touch lines 201 in the third region 1022.

[0128] In the above embodiment, the transmittance of the transparent conductive touch line 201b is higher than the transmittance of the metal touch line 201a. Therefore, in a region, the greater the ratio of the transparent conductive touch line 201b to the plurality of first touch lines 201 is, the higher the overall transmittance of the region is. The transmittance is the ratio of the incident light from one side of the touch structure layer 20 in the region that passes through the plurality of touch lines 201 and irradiates the anode layer to the total incident light.

[0129] In some examples, the material of the metal touch line 201a is an alloy such as magnesium aluminum alloy (MgAl) and lithium aluminum alloy (LiAl), or magnesium (Mg), aluminum (Al), lithium (Li) and silver (Ag), and the material of the transparent conductive touch line 201b is indium tin oxide (ITO), indium zinc oxide (IZO), indium gallium oxide (IGO), gallium zinc oxide (GZO), zinc oxide (ZnO), indium oxide (In2O3), aluminum zinc oxide (AZO) and carbon nanotubes.

[0130] Exemplarily, the transmittance of the first area 101 is less than that of the second area 1021, and the transmittance of the second area 1021 is less than that of the third area 1022. By setting the proportion of the material of the touch line 201 to change the transmittance of each area, the reflectivity is enhanced, so that the reflectivity of the first area 101, the second area 1021 and the third area 1022 are consistent, and finally the problem of poor regional optics is improved, thereby enhancing the display effect of the touch display panel 100.

[0131] As shown in FIG6F , in one implementation, at least a portion of the multiple touch lines 201 are provided with openings 2020, and at least another portion of the touch lines 201 are provided with breaks 2010, and at least a portion of the multiple touch lines 201 are metal touch lines 201a, and another portion of the touch lines 201 are transparent conductive touch lines 201b. In other words, the touch lines 201 can be provided with openings 2020, the touch lines 201 can be provided with breaks 2010, and the touch lines 201 can be made of different materials, etc., as long as the reflectivity of the first area 101, the second area 1021, and the third area 1022 are equal.

[0132] In some embodiments, the first area 101 is a touch area, and the second area 1021 and the third area 1022 are non-touch areas. The touch lines 201 in the first area 101 are disconnected from the touch lines 201 in the second area 1021 and the third area 1022 .

[0133] For example, the first area 101 is an area on the touch display panel 100 used for displaying images and can realize touch. The non-touch area 102 is not used for displaying images and does not require touch function. There may be no electrical connection between the first area 101 and the non-touch area 102, that is, the two are electrically insulated. Therefore, when setting multiple touch lines 201 located in the first area 101 and the non-touch area 102, the multiple touch lines 201 at the boundary between the first area 101 and the non-touch area 102 can be disconnected, so that the fracture density in the multiple touch lines can be further increased.

[0134] In some embodiments, when the touch lines 201 located in the first area 101 are disconnected from the touch lines 201 located in the second area 1021 and the third area 1022, the disconnection rate of the first area 101 is 20%, the disconnection rate of the second area 1021 in the non-touch area 102 is 25% to 40%, and the disconnection rate of the third area 1022 in the non-touch area 102 is 30% to 50%.

[0135] For example, the first area 101 has a breakage rate of 20%, the second area 1021 has a breakage rate of 25%, and the third area 1022 has a breakage rate of 30%. For another example, the first area 101 has a breakage rate of 20%, the second area 1021 has a breakage rate of 30%, and the third area 1022 has a breakage rate of 40%. For another example, the first area 101 has a breakage rate of 20%, the second area 1021 has a breakage rate of 40%, and the third area 1022 has a breakage rate of 50%. The above-mentioned different areas may be disconnected due to the multiple touch lines 201 at the boundary between the first area 101 and the non-touch area 102, corresponding to different breakage rates, wherein the breakage rate of the first area 101 is less than The fracture ratio of the second area 1021 is smaller than that of the third area 1022. Through such a setting, more incident light from one side of the touch structure layer 20 can pass through the multiple fractures 2010 of the multiple touch lines 201, irradiate the anode layer 131, and then be reflected by the anode layer 131 to the side of the touch structure layer 20, thereby enhancing the reflectivity. Different fracture ratios can change the reflectivity. When obtaining the fracture ratios corresponding to different areas in the above example, the reflectivities of the first area 101, the second area 1021 and the third area 1022 can be made consistent, thereby ultimately improving the problem of poor regional optics and enhancing the display effect of the touch display panel 100.

[0136] In some embodiments, as shown in Figure 7A, the touch structure layer 20 includes a first touch structure layer 21 and a second touch structure layer 22. The relative positions of the first touch structure layer 21 and the second touch structure layer 22 can be interchanged. For example, the first touch structure layer 21 is located on the side of the second touch structure layer 22 away from the display panel, or the first touch structure layer 21 is located on the side of the second touch structure layer 22 close to the display panel. Figure 7A illustrates the second situation. The touch structure layer 20 includes multiple touch sub-electrodes TR. The first touch structure layer 21 includes multiple first touch sub-electrodes 213 and multiple first connecting electrodes 212 arranged along a first direction X. The multiple first touch sub-electrodes 213 and the multiple first connecting electrodes 212 are alternately distributed and electrically connected in sequence to form multiple first touch electrodes 210 extending along the first direction X. The first touch structure layer 21 also includes multiple second touch sub-electrodes 211 arranged in sequence and at equal intervals along a second direction Y. The second touch structure layer 22 includes multiple second connecting electrodes 214 arranged along the second direction Y. The multiple second touch sub-electrodes 211 and the multiple second connecting electrodes 214 are alternately distributed and electrically connected in sequence to form second touch electrodes 220 extending along the second direction Y. The first direction X intersects with the second direction Y. The multiple first touch sub-electrodes 213, the multiple first connecting electrodes 212, the multiple second touch sub-electrodes 211, and the multiple second connecting electrodes 214 are composed of multiple touch lines 201.

[0137] For example, FIG7A illustrates a structural diagram of a touch structure layer 20 provided in at least one embodiment of the present disclosure. As shown in FIG7A , the touch structure layer 20 includes a plurality of first touch electrodes 210 extending along a first direction X and a plurality of second touch electrodes 220 extending along a second direction Y. For example, in FIG7A , the first touch electrodes 210 are touch sensing electrodes Tx, and the second touch electrodes 220 are touch driving electrodes Rx. However, the present disclosure is not limited to this. In other examples, the first touch electrodes 210 may be touch driving electrodes, and the second touch electrodes 220 may be touch sensing electrodes.

[0138] In some embodiments, each first touch electrode 210 includes first touch sub-electrodes 213 sequentially arranged and connected to each other along a first direction X, and each second touch electrode 220 includes second touch sub-electrodes 211 sequentially arranged and connected to each other along a second direction Y. For example, as shown in FIG7A , the main outlines of each first touch sub-electrode 213 and second touch sub-electrode 211 are both diamond-shaped. In other examples, the first touch sub-electrodes 213 and second touch sub-electrodes 211 may also have other shapes, such as triangles or bars, and these shapes are not limited here.

[0139] The adjacent first touch sub-electrodes 213 in the first direction X are electrically connected through the first connecting electrode 212 to form a first touch electrode 210 , and the adjacent second touch sub-electrodes 211 in the second direction Y are electrically connected through the second connecting electrode 214 to form a plurality of second touch electrodes 220 .

[0140] In some embodiments, the plurality of second connection electrodes 214 and the plurality of second touch sub-electrodes 211 are arranged in different layers. Optionally, the relative positional relationship between the plurality of second connection electrodes 214 and the plurality of second touch sub-electrodes 211 can be in two situations. As shown in FIG7B , the plurality of second connection electrodes 214 are located on a side of the plurality of second touch sub-electrodes 211 away from the display panel 10. Alternatively, as shown in FIG7C , the plurality of second connection electrodes 214 can also be located on a side of the plurality of second touch sub-electrodes 211 close to the display panel 10.

[0141] Please refer to Figure 7B, which is a cross-sectional view of Figure 7A at EE. Figure 7B shows an embodiment in which the second connecting electrode 214 is located on the side of the second touch sub-electrode 211 away from the display panel 10, wherein both ends of the second connecting electrode 214 can be electrically connected to the second touch sub-electrode 211 through at least one via P.

[0142] Exemplarily, the two ends of the second connecting electrode 214 can be electrically connected to the second touch sub-electrode 211 through two vias P, which can improve the reliability of the electrical connection between the second connecting electrode 214 and the second touch sub-electrode 211, and at the same time reduce the equivalent resistance between the second connecting electrode 214 and the second touch sub-electrode 211, thereby reducing the power consumption of the display panel and improving the display and touch effects.

[0143] Please refer to Figure 7C, which is a cross-sectional view of some other embodiments of Figure 7A at EE. Figure 7C shows an embodiment in which the second connecting electrode 214 is located on the side of the second touch sub-electrode 211 close to the display panel 10, wherein both ends of the second connecting electrode 214 can be electrically connected to the second touch sub-electrode 211 through at least one via P.

[0144] Exemplarily, the two ends of the second connecting electrode 214 can be electrically connected to the second touch sub-electrode 211 through two vias P, which can improve the reliability of the electrical connection between the second connecting electrode 214 and the second touch sub-electrode 211, and at the same time reduce the equivalent resistance between the second connecting electrode 214 and the second touch sub-electrode 211, thereby reducing the power consumption of the display panel and improving the display and touch effects.

[0145] Continuing to refer to Figures 7B and 7C, the touch panel 20' further includes an insulating layer 23, a buffer layer 24, and a protective layer 25. Among them, the insulating layer 23 is arranged between the second connecting electrode 214 and the second touch sub-electrode 211, that is, the insulating layer 23 extends between the first touch structure layer 21 and the second touch structure layer 22. The insulating layer 23 can insulate the first touch structure layer 21 from the second touch structure layer 22. The buffer layer 24 is arranged on the side of the touch structure layer 20 close to the display panel 10, and the touch structure layer 20 and the buffer layer 24 can be in direct contact. The protective layer 25 is arranged on the side of the touch structure layer 20 away from the display panel 10. The protective layer 25 covers the touch structure layer 20 and is mainly used to protect the touch structure layer 20. The protective layer 25 is made of a material with high antioxidant properties, which can block external water and oxygen to avoid corrosion to the touch structure layer 20.

[0146] For example, referring to FIG. 3A , the insulating layer 23, the buffer layer 24, and the protective layer 25 may be equivalent to the second encapsulation layer 26 mentioned above. The material of the protective layer 25 may refer to the description of the second encapsulation layer 26 above. For example, inorganic insulating materials such as silicon oxide, aluminum oxide, and silicon nitride (SiNx) may be used. Of course, organic insulating materials may also be used. The protective layer 25 and the insulating layer 23 may be made of the same or different materials.

[0147] As a possible design, the buffer layer 24 and the insulating layer 23 may be made of the same material, such as silicon nitride or polyimide, or they may be made of different materials.

[0148] As shown in Figure 7A , each first touch electrode 210 and each second touch electrode 220 are insulated from each other and intersect to form multiple touch units 200 at the intersection. Each touch unit 200 includes a portion of each of the two first touch electrode segments connected at the intersection and at least a portion of each of the two second touch electrode segments connected at the intersection. As shown in Figure 8A , which illustrates an enlarged structural diagram of a touch unit 200, Figure 8A shows that multiple first touch sub-electrodes 213, multiple first connecting electrodes 212, multiple second touch sub-electrodes 211, and multiple second connecting electrodes 214 are composed of multiple touch lines. Each touch unit 200 includes half of each of the two adjacent first touch sub-electrodes 213 and half of each of the two adjacent second touch sub-electrodes 211, that is, an average of one first touch sub-electrode 213 and one second touch sub-electrode 211. The intersection point in each touch unit 200 (that is, the intersection of the first connection electrode 212 and the second connection electrode 214) forms a reference point for calculating coordinates. When a finger touches the touch screen, it affects the coupling between the first touch sub-electrode 213 and the second touch sub-electrode 211 near the touch point, thereby changing the mutual capacitance between the two electrodes. The touch sensing signal changes according to the change in the capacitance of the touch screen, so that the coordinates of each touch point can be calculated based on the reference point. For example, the area of ​​each touch unit 200 is equivalent to the area of ​​a person's finger contacting the touch display panel 100. If the area of ​​the touch unit 200 is too large, it may cause a touch blind spot on the panel, while if it is too small, it may cause a false touch signal.

[0149] For example, the average side length of each touch unit 200 is L, and L ranges from 3.5 mm to 5 mm, for example, 4 mm, because the diameter of a human finger in contact with the touch display panel 100 is approximately 4 mm. The average side length of each touch unit 200 is the same as the average diagonal length of each first touch sub-electrode 213 and the average diagonal length of each second touch sub-electrode 211, as well as the center-to-center distance between adjacent first touch sub-electrodes 213 and the center-to-center distance between adjacent second touch sub-electrodes 211.

[0150] In some embodiments, as shown in FIG8A , a portion of the touch lines 201 located in the boundary area D1 between adjacent first touch sub-electrodes 213 and second touch sub-electrodes 211 is provided with a separation break 20101 , and the breaks 2010 provided on at least a portion of the touch lines 201 include the separation break 20101 .

[0151] Among them, the separating break 20101 separates the touch line 201 into two touch sub-lines 20100. For example, each separating break 20101 is located in the middle of the first touch line. One of the two touch sub-lines 20100 belongs to the first touch sub-electrode 213, and the other belongs to the second touch sub-electrode 211, so that the adjacent first touch sub-electrodes 213 and the second touch sub-electrode 211 are insulated from each other.

[0152] It is understandable that the touch sub-line 20100 here can be a part of the first touch line, the second touch line or the third touch line, that is, the separation break 20101 separates the touch line 201 into two first touch lines, the second touch line or the third touch line.

[0153] In at least one embodiment of the present disclosure, the first touch sub-electrode 213 and the second touch sub-electrode 211 are insulated from each other through the break 2010. Compared with insulation by setting dummy electrodes, the setting area of ​​the touch electrodes can be increased, the density of the touch electrodes can be increased, and thus the touch sensitivity can be improved.

[0154] In some embodiments, the number of breaks 2010 on the touch lines 201 located in the boundary region D1 between adjacent first touch sub-electrodes 213 and second touch sub-electrodes 211 is greater than the number of breaks 2010 on the touch lines 201 in the non-boundary region. The touch lines 201 include a plurality of first touch lines 2011, a plurality of second touch lines 2012, and a plurality of third touch lines 2013. The non-boundary region is the region where the touch lines 201 are located, excluding the boundary region D1.

[0155] It should be noted that the boundary region D1 between adjacent first touch sub-electrodes 213 and second touch sub-electrodes 211 refers to the insulated and intersecting portions, while the non-insulated portions are considered non-boundary regions. For example, in a touch unit 200, as shown in Figures 8A and 8B, the boundary region D1 refers to the region located diagonally along the touch unit 200, while the non-boundary region refers to the region of the touch unit 200 other than the boundary region D1.

[0156] For example, continuing to refer to Figures 8A and 8B, in the boundary area D1, in the multiple touch grids 202 defined by multiple first touch lines, multiple second touch lines and multiple third touch lines, the number of breaks set in each touch grid 202 is 2, 3, or 4, while in the non-boundary area, in the multiple touch grids 202 defined by multiple first touch lines, multiple second touch lines and multiple third touch lines, the number of breaks set in each touch grid 202 is 0, 1 or 2. Therefore, the total number of breaks 2010 set in the multiple touch grids 202 located in the boundary area D1 is greater than the total number of breaks 2010 set in the multiple touch grids 202 in the non-boundary area.

[0157] In some embodiments, in the multiple touch grids 202 defined by the multiple touch lines 201, the orthographic projection of each touch grid 202 on the touch display panel is a hexagon, the number of breaks in each touch grid defined by the multiple touch lines 201 located in the boundary area D1 between the adjacent first touch sub-electrodes 213 and the second touch sub-electrodes 211 is 2, 3, or 4, and the number of breaks in each touch grid 202 defined by the multiple touch lines 201 located in the non-boundary area is 0, 1, or 2.

[0158] Exemplarily, as shown in FIG8A , in the multiple touch grids 202 defined by the multiple touch lines 201, the orthographic projection of each touch grid 202 on the touch display panel is a hexagon. In the boundary area D1, in the multiple touch grids 202 defined by the multiple first touch lines, the multiple second touch lines, and the multiple third touch lines, the number of breaks set in each touch grid 202 is 2, 3, or 4. In the non-boundary area, in the multiple touch grids 202 defined by the multiple first touch lines, the multiple second touch lines, and the multiple third touch lines, the number of breaks set in each touch grid 202 is 0, 1, or 2. Therefore, the total number of breaks 2010 set in the multiple touch grids 202 located in the boundary area D1 is greater than the total number of breaks 2010 set in the multiple touch grids 202 in the non-boundary area.

[0159] In some embodiments, among the multiple touch grids 202 defined by the multiple touch lines 201, the orthographic projection of each touch grid 202 on the touch display panel is a quadrilateral, the number of breaks in each touch grid 202 defined by the multiple touch lines 201 located in the boundary area D1 between adjacent first touch sub-electrodes 213 and second touch sub-electrodes 211 is 2 or 3, and the number of breaks in each touch grid 202 defined by the multiple touch lines 201 located in the non-boundary area is 0, 1, or 2.

[0160] For example, as shown in FIG8B , in the multiple touch grids 202 defined by the multiple touch lines 201, the orthographic projection of each touch grid 202 on the touch display panel is a quadrilateral. In the boundary area D1, in the multiple touch grids 202 defined by the multiple first touch lines, the multiple second touch lines, and the multiple third touch lines, the number of breaks set in each touch grid 202 is 2 or 3. In the non-boundary area, in the multiple touch grids 202 defined by the multiple first touch lines, the multiple second touch lines, and the multiple third touch lines, the number of breaks set in each touch grid 202 is 0, 1, or 2. Therefore, the total number of breaks 2010 set in the multiple touch grids 202 located in the boundary area D1 is greater than the total number of breaks 2010 set in the multiple touch grids 202 in the non-boundary area.

[0161] In some embodiments, as shown in Figures 9A to 9C, the touch structure layer 20 includes a plurality of touch sub-electrodes TR, at least some of the plurality of touch sub-electrodes TR are metal touch sub-electrodes, and another portion of the touch sub-electrodes TR are transparent conductive touch sub-electrodes; the ratio of the transparent conductive touch sub-electrodes in the first region 101 to the plurality of touch sub-electrodes TR is smaller than the ratio of the transparent conductive touch sub-electrodes in the second region 1021 to the plurality of touch sub-electrodes TR; the ratio of the transparent conductive touch sub-electrodes in the second region 1021 to the plurality of touch sub-electrodes TR is smaller than the ratio of the transparent conductive touch sub-electrodes in the third region 1022 to the plurality of touch sub-electrodes TR.

[0162] It should be noted that, in FIG. 9A to FIG. 9C , the touch sub-electrodes TR filled with patterns represent metal touch sub-electrodes, and the touch sub-electrodes TR not filled with patterns represent transparent conductive touch sub-electrodes.

[0163] In some embodiments, the transmittance of the transparent conductive touch sub-electrode is higher than the transmittance of the metal touch sub-electrode. Therefore, in a region, the larger the ratio of the transparent conductive touch sub-electrode to the multiple touch sub-electrodes TR is, the higher the overall transmittance of the region is. The transmittance is the ratio of the incident light from one side of the touch structure layer 20 in a region that passes through multiple touch lines 201 and irradiates the anode layer to the total incident light.

[0164] Exemplarily, the transmittance of the first zone 101 is less than that of the second zone 1021, and the transmittance of the second zone 1021 is less than that of the third zone 1022. By setting the ratio of the metal touch sub-electrode and the transparent conductive touch sub-electrode, the transmittance of each area is changed, and the reflectivity is enhanced, so that the reflectivity of the first zone 101, the second zone 1021 and the third zone 1022 are consistent, and finally the problem of poor regional optics is improved.

[0165] As shown in Figures 10A and 10B, Figure 10A is a schematic diagram of the path of light passing through the metal touch sub-electrode, and Figure 10B is a schematic diagram of the path of light passing through the transparent conductive touch sub-electrode. It can be seen that the transparent conductive touch sub-electrode has a high transmittance, and most of the light incident from the outside can pass through the transparent conductive touch sub-electrode and be incident on the anode layer 131, thereby improving the reflectivity of the light.

[0166] In some embodiments, in the third area 1022 , the second area 1021 , and the first area 101 , the ratio of the metal touch sub-electrodes to the transparent conductive touch sub-electrodes gradually increases.

[0167] For example, as shown in FIG9A , FIG9A is a partial view of the third region 1022 , in which the metal touch sub-electrodes account for a smaller proportion than the transparent conductive touch sub-electrodes, so the ratio of the number of metal touch sub-electrodes to transparent conductive touch sub-electrodes is small and less than 1. For example, the ratio of metal touch sub-electrodes to transparent conductive touch sub-electrodes is 1 / 3.

[0168] For example, as shown in FIG9B , which is a partial view of the second region 1021 , the metal touch sub-electrodes account for a similar proportion to the transparent conductive touch sub-electrodes, so the ratio of the number of metal touch sub-electrodes to the number of transparent conductive touch sub-electrodes is close to 1.

[0169] For example, as shown in FIG9C , FIG9C is a partial view of the first region 101 , in which the metal touch sub-electrodes account for a larger proportion than the transparent conductive touch sub-electrodes, so the ratio of the number of metal touch sub-electrodes to transparent conductive touch sub-electrodes is large and greater than 1.

[0170] In some embodiments, the plurality of touch sub-electrodes TR in the first region 101 are all metal touch sub-electrodes.

[0171] Exemplarily, through the above settings, the transmittance of each area can be changed by changing the proportion of metal touch sub-electrodes and transparent conductive touch sub-electrodes, thereby enhancing the reflectivity, so that the reflectivity of the first area 101, the second area 1021 and the third area 1022 are consistent, and ultimately improve the problem of poor regional optics.

[0172] The beneficial effects of the touch display device 1000 in the above embodiments of the present disclosure are the same as the beneficial effects of the touch display panel 100 described in some of the above embodiments, and are not described again here.

[0173] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that a person skilled in the art can conceive within the technical scope disclosed in the present disclosure should be included within the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A touch display panel, comprising: Display panel; The display panel includes an anode layer; A touch panel disposed on one side of the display panel, the touch panel comprising a touch structure layer; The touch structure layer includes a plurality of touch lines, and the plurality of touch lines define a plurality of touch grids; The touch display panel includes a first area and a second area, the plurality of touch lines include a plurality of first touch lines located in the first area and a plurality of second touch lines located in the second area; a line width of at least one first touch line among the plurality of first touch lines is smaller than a line width of at least one second touch line among the plurality of second touch lines; The reflectivity of the first area and the second area is equal, and the reflectivity is the ratio of the incident light from one side of the touch structure layer passing through the multiple touch lines to irradiate the anode layer and then reflected by the anode layer to the side of the touch structure layer to the incident light.

2. The touch display panel according to claim 1, wherein: The touch display panel further includes a third area, the plurality of touch lines further include a plurality of third touch lines located in the third area, and a line width of at least one third touch line among the plurality of third touch lines is greater than a line width of at least one second touch line among the second touch lines; The reflectivity of the third region is equal to the reflectivity of the first region and the second region.

3. The touch display panel according to claim 2, wherein: At least a portion of the plurality of touch lines is provided with breakages, the breakage rate of the first area is smaller than that of the second area, and the breakage rate of the second area is smaller than that of the third area; The break rate is a ratio of touch lines with breaks in a region to all touch lines in the region.

4. The touch display panel according to claim 3, wherein: The density of the interruptions in the first zone is smaller than the density of the interruptions in the second zone, and the density of the interruptions in the second zone is smaller than the density of the interruptions in the third zone; and / or, The size of the break in the first zone is smaller than the size of the break in the second zone, and the size of the break in the second zone is smaller than the size of the break in the third zone.

5. The touch display panel according to claim 3, wherein: The fracture rate of the first zone is 20%, the fracture rate of the second zone is 23% to 27%, and the fracture rate of the third zone is 28% to 32%.

6. The touch display panel according to any one of claims 1 to 5, wherein: At least a portion of the plurality of touch lines is provided with openings, the opening ratio of the first area is smaller than that of the second area, and the opening ratio of the second area is smaller than that of the third area; The opening ratio is a ratio of touch lines with openings among multiple touch lines in a region to all touch lines in the region.

7. The touch display panel according to claim 6, wherein: The density of the openings in the first region is smaller than the density of the openings in the second region, and the density of the openings in the second region is smaller than the density of the openings in the third region; and / or, The size of the openings in the first region is smaller than the size of the openings in the second region, and the size of the openings in the second region is smaller than the size of the openings in the third region.

8. The touch display panel according to claim 7, wherein: The opening rate of the first zone is 20%, the opening rate of the second zone is 23% to 27%, and the opening rate of the third zone is 28% to 32%.

9. The touch display panel according to any one of claims 6 to 8, wherein: The orthographic projection of the opening on the display panel is in the shape of a circle, a rectangle or an ellipse.

10. The touch display panel according to any one of claims 1 to 9, wherein: At least some of the plurality of touch lines are metal touch lines, and another part of the touch lines are transparent conductive touch lines; The ratio of the transparent conductive touch lines in the first area to the multiple first touch lines is smaller than the ratio of the transparent conductive touch lines in the second area to the multiple second touch lines; and the ratio of the transparent conductive touch lines in the second area to the multiple second touch lines is smaller than the ratio of the transparent conductive touch lines in the third area to the multiple third touch lines.

11. The touch display panel according to any one of claims 1 to 10, wherein: The first area is a touch area, and the second area and the third area are non-touch areas. Among the touch lines, the touch lines in the first area are disconnected from the touch lines in the second area and the third area.

12. The touch display panel according to claim 11, wherein: The fracture rate of the first area is 20%, the fracture rate of the second area in the non-touch area is 25% to 40%, and the fracture rate of the third area in the non-touch area is 30% to 50%.

13. The touch display panel according to any one of claims 1 to 12, wherein: The touch structure layer includes a first touch structure layer and a second touch structure layer; the touch structure layer includes a plurality of touch sub-electrodes; The first touch structure layer includes a plurality of first touch sub-electrodes and a plurality of first connecting electrodes arranged along a first direction, wherein the plurality of first touch sub-electrodes and the plurality of first connecting electrodes are alternately distributed one by one and electrically connected in sequence to form first touch electrodes extending along the first direction; The first touch structure layer further includes a plurality of second touch sub-electrodes sequentially arranged along a second direction, and the second touch structure layer includes a plurality of second connecting electrodes arranged along the second direction, wherein the plurality of second touch sub-electrodes and the plurality of second connecting electrodes are alternately distributed one by one and electrically connected in sequence to form second touch electrodes extending along the second direction; The first direction intersects with the second direction; the plurality of first touch sub-electrodes, the plurality of first connecting electrodes, the plurality of second touch sub-electrodes and the plurality of second connecting electrodes are formed by the plurality of touch lines.

14. The touch display panel according to claim 13, wherein: A portion of the plurality of touch lines located at a boundary area between adjacent first touch sub-electrodes and second touch sub-electrodes is provided with a separation break, and the breaks provided on at least a portion of the plurality of touch lines include the separation break; The separation break separates the touch line into two touch sub-lines, one of which belongs to the first touch sub-electrode and the other belongs to the second touch sub-electrode, so that the adjacent first touch sub-electrode and second touch sub-electrode are insulated from each other.

15. The touch display panel according to claim 14, wherein: The number of breaks on the touch lines in the boundary area between the adjacent first touch sub-electrode and the second touch sub-electrode is greater than the number of breaks on the touch lines in the non-boundary area; The non-boundary area is other areas of the area where the multiple touch lines are located except the boundary area.

16. The touch display panel according to claim 15, wherein: Among the multiple touch grids defined by the multiple touch lines, the orthographic projection of each touch grid on the display panel is a hexagon, the number of breaks in each touch grid defined by the multiple touch lines located in the boundary area between the adjacent first touch sub-electrodes and the second touch sub-electrodes is 2, 3 or 4, and the number of breaks in each touch grid defined by the multiple touch lines located in the non-boundary area is 0, 1 or 2.

17. The touch display panel according to claim 15, wherein: Among the multiple touch grids defined by the multiple touch lines, the orthographic projection of each touch grid on the display panel is a quadrilateral, the number of breaks in each touch grid defined by the multiple touch lines located in the boundary area between the adjacent first touch sub-electrodes and the second touch sub-electrodes is 2 or 3, and the number of breaks in each touch grid defined by the multiple touch lines located in the non-boundary area is 0, 1 or 2.

18. The touch display panel according to any one of claims 13 to 17, wherein: The touch structure layer includes a plurality of touch sub-electrodes, at least some of the touch sub-electrodes are metal touch sub-electrodes, and another portion of the touch sub-electrodes are transparent conductive touch sub-electrodes; The ratio of the transparent conductive touch sub-electrodes in the first zone to the multiple touch sub-electrodes is smaller than the ratio of the transparent conductive touch sub-electrodes in the second zone to the multiple touch sub-electrodes; the ratio of the transparent conductive touch sub-electrodes in the second zone to the multiple touch sub-electrodes is smaller than the ratio of the transparent conductive touch sub-electrodes in the third zone to the multiple touch sub-electrodes.

19. The touch display panel according to claim 18, wherein: The plurality of touch sub-electrodes in the first region are all metal touch sub-electrodes.

20. A touch display device comprising the touch display panel according to any one of claims 1 to 19.