Touch display module and display device

Abstract

The application discloses a touch display module and a display device, and relates to the technical field of display, so as to improve the touch performance of the touch display device. The touch display module comprises a display panel, a touch structure and a plurality of touch signal lines. The display panel has a display area, a first transition area, a bending area, a second transition area and a binding area arranged in sequence along a first direction. The touch structure forms a touch area, the touch area covers the display area, and the first transition area is located on one side of the touch area along the first direction. The plurality of touch signal lines comprises a plurality of sub-wire segments extending along a second direction, the second direction intersects the first direction; in the plurality of sub-wire segments, a part of the sub-wire segments is located in the first transition area, and a part of the sub-wire segments is located in the second transition area. The application is used for image display.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and in particular to a touch display module and display device. Background Technology

[0002] With the development of display technology, display devices have gradually become ubiquitous in people's lives. Among them, touch display devices with touch functionality are widely used in smart products such as mobile phones, televisions, and laptops because they are simple and convenient to operate and provide users with a better user experience.

[0003] Currently, touch display devices include: a display panel, a touch sensor for implementing touch functionality, a touch chip, touch signal lines, and a flexible circuit board. The touch chip can be mounted on the flexible circuit board and electrically connected to the touch sensor via the touch signal lines to transmit touch signals to the touch sensor and acquire the sensor's sensing signals.

[0004] However, as the demand for narrow bezels increases, the space that touch signal lines can occupy is constantly shrinking, which leads to a continuous reduction in the cross-section of each touch signal line. This results in an increase in the impedance of the touch signal lines, causing a decrease in the touch performance of the touch display device, which cannot meet customer requirements.

[0005] Public content

[0006] This disclosure provides a touch display module and a display device to improve the touch performance of the display device.

[0007] To achieve the above objectives, the present disclosure adopts the following technical solution:

[0008] On one hand, a touch display module is provided. The touch display module includes a display panel, a touch structure, and multiple touch signal lines. The display panel has a display area, a first transition area, a bending area, a second transition area, and a bonding area arranged sequentially along a first direction. The touch structure forms a touch area that covers the display area, and along the first direction, the first transition area is located on one side of the touch area. The multiple touch signal lines include multiple sub-segments extending along a second direction, which intersects the first direction; among the multiple sub-segments, a portion of the sub-segments are located in the first transition area, and a portion of the sub-segments are located in the second transition area.

[0009] In some embodiments, the plurality of touch signal lines include a plurality of first touch traces and a plurality of second touch traces. The plurality of first touch traces are electrically connected to the touch structure on a first side of the touch area; the first side is the side of the touch area closest to the first transition region. Each first touch trace includes a first sub-trace segment extending along a second direction and located within the first transition region. The plurality of second touch traces are electrically connected to the touch structure on a second side of the touch area; the second side is at least one side of the touch area along a second direction. At least one second touch trace includes a second sub-trace segment extending along the second direction and located within the second transition region.

[0010] In some embodiments, the display panel includes a plurality of bonding portions disposed in the bonding area, each bonding portion including a first sub-bonding portion and two second sub-bonding portions. The first sub-bonding portion includes a plurality of display pins, and the second sub-bonding portions include a plurality of touch pins. The touch signal line is electrically connected to the touch pins. The two second sub-bonding portions are disposed on opposite sides of the first sub-bonding portion in a second direction.

[0011] In some embodiments, the plurality of touch signal lines includes a plurality of wiring bundles, each wiring bundle consisting of a plurality of touch signal lines connected to a second sub-binding portion. The plurality of wiring bundles includes a plurality of first wiring bundles and a plurality of second wiring bundles. Each first wiring bundle consists of a plurality of first touch lines, and each second wiring bundle consists of a plurality of second touch lines. The plurality of second wiring bundles are located on opposite sides of the plurality of first wiring bundles.

[0012] In some embodiments, the plurality of second wiring bundles include a plurality of first sub-bundles, each first sub-bundle consisting of at least one second touch wiring. The first sub-bundle includes a first sub-bundle segment, a second sub-bundle segment, a third sub-bundle segment, a fourth sub-bundle segment, and a fifth sub-bundle segment connected sequentially. One end of the first sub-bundle segment is electrically connected to the second sub-binding portion, and the other end extends along the first direction to the second transition region. The second sub-bundle segment extends along the second direction and is located in the second transition region. The third sub-bundle segment extends along the first direction to the first transition region. The fourth sub-bundle segment extends along the second direction and is located in the first transition region. The fifth sub-bundle segment extends along the first direction and is electrically connected to the touch structure on one side of the touch area in the second direction.

[0013] In some embodiments, the plurality of second wiring bundles further include a plurality of second sub-bundles, each sub-bundle consisting of at least one second touch wiring. The second sub-bundle includes a sixth sub-bundle segment, a seventh sub-bundle segment, and an eighth sub-bundle segment connected sequentially. One end of the sixth sub-bundle segment is electrically connected to the second sub-binding portion, and the other end extends along the first direction to the first transition region; the seventh sub-bundle segment extends along the second direction and is located in the first transition region; the eighth sub-bundle segment extends along the first direction and is electrically connected to the touch structure on one side of the touch area in the second direction.

[0014] In some embodiments, the second sub-bundle is located on the side of the first sub-bundle away from the plurality of first wiring bundles.

[0015] In some embodiments, the plurality of first wiring bundles include two third sub-bundles, each third sub-bundle comprising a first wiring cluster and a second wiring cluster arranged in parallel. The first wiring cluster includes a first wiring cluster segment and a second wiring cluster segment. One end of the first wiring cluster segment is electrically connected to the second sub-binding portion, and the other end extends along the first direction to the first transition region. The second wiring cluster segment extends along the second direction to the boundary of the display area and is located in the first transition region. The second wiring cluster segment is electrically connected to the touch structure. The second wiring cluster includes a third wiring cluster segment and a fourth wiring cluster segment. One end of the third wiring cluster segment is electrically connected to the second sub-binding portion, and the other end extends along the first direction to the first transition region. The fourth wiring cluster segment extends along the second direction and is located on the side of the third sub-bundle segment away from the fifth sub-bundle segment. The fourth wiring cluster segment is located in the first transition region and is electrically connected to the touch structure.

[0016] In some embodiments, the second wiring cluster is located between the first wiring cluster and the first sub-bundle.

[0017] In some embodiments, the plurality of first wiring harnesses further include a plurality of fourth sub-bundles, each fourth sub-bundle including a ninth sub-bundle segment and a tenth sub-bundle segment connected in sequence. One end of the ninth sub-bundle segment is electrically connected to the second sub-binding portion, and the other end extends along the first direction to the first transition region; the tenth sub-bundle segment extends along the second direction and is electrically connected to the touch structure in the first transition region.

[0018] In some embodiments, the two third sub-bundles are respectively disposed on opposite sides of the plurality of fourth sub-bundles.

[0019] In some embodiments, the display panel includes a first binding portion, a second binding portion, a third binding portion, and a fourth binding portion arranged sequentially along the second direction.

[0020] In the first binding part, the second sub-binding part that is farther away from the fourth binding part is electrically connected to the second sub-bundle; the second sub-binding part that is closer to the fourth binding part is electrically connected to the first sub-bundle.

[0021] In the second binding part, the second sub-binding part that is farther away from the fourth binding part is electrically connected to the third sub-bundle; the second sub-binding part that is closer to the fourth binding part is electrically connected to the fourth sub-bundle.

[0022] In the third binding part, the second sub-binding part, which is farther away from the first binding part, is electrically connected to the third sub-bundle; the second sub-binding part, which is closer to the first binding part, is electrically connected to the fourth sub-bundle.

[0023] In the fourth binding part, the second sub-binding part that is farther away from the first binding part is electrically connected to the second sub-bundle; the second sub-binding part that is closer to the first binding part is electrically connected to the first sub-bundle.

[0024] In some embodiments, the display panel has a first axis of symmetry extending along the first direction; the first wiring harness and the second wiring harness are symmetrically arranged with respect to the first axis of symmetry.

[0025] In some embodiments, the touch structure includes a driving electrode and a sensing electrode. The first touch trace is electrically connected to the sensing electrode, and the second touch trace is electrically connected to the driving electrode. Alternatively, the first touch trace is electrically connected to the driving electrode, and the second touch trace is electrically connected to the sensing electrode.

[0026] In some embodiments, the display panel further includes multiple data connection lines and multiple power connection lines. The data connection lines are disposed on the side of the display area near the bonding area. The multiple power connection lines are disposed on at least one side of the display area. Among the multiple touch signal lines, the orthographic projection of the sub-trace segment located in the second transition area onto the reference plane at least partially overlaps with the orthographic projection of the power connection line onto the reference plane. Furthermore, the film layer containing the multiple power connection lines is located between the film layer containing the multiple data connection lines and the film layer containing the multiple touch signal lines. The reference plane is the plane defined by the first direction and the second direction.

[0027] In some embodiments, the plurality of power connection lines include a plurality of first power connection lines and a plurality of second power connection lines, wherein the plurality of first power connection lines and the plurality of second power connection lines are at least partially located in the second transition region.

[0028] Among the multiple touch signal lines, the orthographic projection of the sub-trace segment located in the second transition area and extending along the second direction on the reference surface is within the range of the orthographic projection of the first power connection line on the reference surface.

[0029] Among the multiple touch signal lines, the orthographic projection of the sub-trace segment located in the second transition area and extending along the first direction on the reference surface is within the range of the orthographic projection of the second power connection line on the reference surface.

[0030] In some embodiments, the display panel includes a plurality of bonding portions disposed in the bonding area, each bonding portion including a first sub-bonding portion, the first sub-bonding portion including a plurality of display pins, the plurality of display pins including two first power pin groups disposed at intervals, each first power pin group including at least one first power pin.

[0031] The first power connection line includes a first sub-connection segment, a second sub-connection segment, and a third sub-connection segment connected sequentially. The first and third sub-connection segments extend along the first direction and are respectively connected to the two first power pin groups. The second sub-connection segment extends along the second direction. Among the plurality of touch signal lines, the orthographic projection of the designated line segment of the sub-trace segment located in the second transition area and extending along the second direction on the reference plane lies within the range of the orthographic projection of the second sub-connection segment on the reference plane.

[0032] In some embodiments, the display panel includes a plurality of bonding portions disposed in the bonding area, each bonding portion including a first sub-bonding portion, the first sub-bonding portion including a plurality of display pins, the plurality of display pins including two second power pin groups disposed at intervals, each second power pin group including at least one second power pin.

[0033] The second power connection line includes a fourth sub-connection segment and a fifth sub-connection segment connected in sequence. The fourth sub-connection segment extends along the first direction, and one end of the fifth sub-connection segment is connected to the fourth sub-connection segment, while the other end is electrically connected to the second power pin group. Among the plurality of touch signal lines, the orthographic projection of the designated line segment of the sub-trace segment located in the second transition area and extending along the first direction on the reference surface lies within the range of the orthographic projection of the fourth sub-connection segment on the reference surface.

[0034] In some embodiments, along a third direction, the display panel includes a substrate, a first gate conductive layer, a second gate conductive layer, a first source-drain conductive layer, a second source-drain conductive layer, and a touch sensing layer. The third direction is perpendicular to the plane defined by the first direction and the second direction. The data connection lines are located in the first gate conductive layer and / or the second gate conductive layer; the power connection lines are located in the first source-drain conductive layer and / or the second source-drain conductive layer. The plurality of touch signal lines are located in the touch sensing layer.

[0035] The touch display module provided in this embodiment reduces the number of sub-traces extending in the second direction in the first transition area, as some of the sub-traces extending in the second direction are located in the first transition area and some in the second transition area. This allows for an increase in the trace width (cross-section) of the sub-traces extending in the second direction in the first transition area, thereby reducing the impedance of the multiple touch signal lines, including the sub-traces extending in the second direction in the first transition area, and improving the overall touch performance of the display device.

[0036] Furthermore, since the second transition area is located on the side of the bending area away from the display area—that is, it is bent to the non-light-emitting side of the display panel—the size of the second transition area does not affect the narrow bezel design of the display device. In this way, the trace width (cross-section) of the multiple sub-traces extending along the second direction in the second transition area can also be increased. This reduces the impedance of the multiple touch signal lines, including the multiple sub-traces extending along the second direction in the second transition area, thereby improving the overall touch performance of the display device.

[0037] On the other hand, a display device is provided. The display device includes the touch display module described in any of the above embodiments.

[0038] The beneficial effects of the display device provided in this disclosure are the same as those of the touch display module provided in the above technical solutions, and will not be repeated here. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0040] Figure 1 This is a structural diagram of a display device according to some embodiments;

[0041] Figure 2A This is a structural diagram of a touch display module according to some embodiments;

[0042] Figure 2B This is a structural diagram of a display panel according to some embodiments;

[0043] Figure 3A This is a cross-sectional view of a touch display module according to some embodiments;

[0044] Figure 3B This is a cross-sectional view of another touch display module according to some embodiments;

[0045] Figure 4 This is a partial enlarged view of the peripheral area of ​​a display panel according to some embodiments;

[0046] Figure 5A This is a structural diagram of a touch-sensing layer according to some embodiments;

[0047] Figure 5B This is a structural diagram of another touch-sensing layer according to some embodiments;

[0048] Figure 5C for Figure 5B A magnified view of the area at M0;

[0049] Figure 5D for Figure 5C A cross-sectional view along the middle AA';

[0050] Figure 6A This is a structural diagram of another touch-sensing layer according to some embodiments;

[0051] Figure 6B This is a structural diagram of another touch-sensing layer according to some embodiments;

[0052] Figure 7 for Figure 2B A magnified view of a portion of point M1 in the image;

[0053] Figure 8 for Figure 2B A magnified view of a portion of point M2 in the image;

[0054] Figure 9 for Figure 2B A magnified view of a portion of point M3 in the image;

[0055] Figure 10 for Figure 8 The wiring diagram of the wiring harness in the diagram;

[0056] Figure 11 for Figure 9 The wiring diagram of the wiring harness in the diagram. Detailed Implementation

[0057] The technical solutions in some embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided in this disclosure are within the scope of protection of this disclosure.

[0058] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular "comprises" and the present participle "comprising," are interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0059] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0060] In describing some embodiments, the terms "coupled" and "connected," and their derivative expressions, may be used. For example, the term "connected" may be used in describing some embodiments to indicate that two or more components have direct physical or electrical contact with each other. Similarly, the term "coupled" may be used in describing some embodiments to indicate that two or more components have direct physical or electrical contact. However, the terms "coupled" or "communicatively coupled" may also refer to two or more components that do not have direct contact with each other but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the content of this document.

[0061] "At least one of A, B and C" has the same meaning as "at least one of A, B or C", both including the following combinations of A, B and C: only A, only B, only C, combinations of A and B, combinations of A and C, combinations of B and C, and combinations of A, B and C.

[0062] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0063] As used herein, depending on the context, the term “if” may optionally be interpreted as meaning “when”, “in the event of”, “in response to determination”, or “in response to detection”. Similarly, depending on the context, the phrase “if it is determined that…” or “if [the stated condition or event] is detected” may optionally be interpreted as meaning “in the event of determination that…”, “in response to determination that…”, “when [the stated condition or event] is detected”, or “in response to the detection of [the stated condition or event]”.

[0064] The use of “applies to” or “configured to” in this article implies an open and inclusive language that does not preclude applicability to or configuration to devices that perform additional tasks or steps.

[0065] In addition, the use of “based on” implies openness and inclusivity, because processes, steps, calculations or other actions “based on” one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0066] As used herein, “parallel,” “perpendicular,” and “equal” include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, “parallel” includes absolute parallelism and approximate parallelism, where an acceptable range of deviation for approximate parallelism may be, for example, within 5°; “perpendicular” includes absolute perpendicularity and approximate perpendicularity, where an acceptable range of deviation for approximate perpendicularity may also be, for example, within 5°; “equal” includes absolute equality and approximate equality, where an acceptable range of deviation for approximate equality may be, for example, a difference between the two equals being less than or equal to 5% of either one.

[0067] It should be understood that when a layer or element is referred to as being on another layer or substrate, it can mean that the layer or element is directly on the other layer or substrate, or that there is an intermediate layer between the layer or element and the other layer or substrate.

[0068] This document describes exemplary embodiments with reference to cross-sectional views and / or plan views, which are idealized exemplary drawings. In the drawings, the thickness of layers and regions is enlarged for clarity. Therefore, variations in shape relative to the drawings are contemplated due to, for example, manufacturing techniques and / or tolerances. Thus, exemplary embodiments should not be construed as limited to the shapes of the regions shown herein, but rather include shape deviations due to, for example, manufacturing processes. For example, etched regions shown as rectangular would typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the regions of the device, nor are they intended to limit the scope of the exemplary embodiments.

[0069] See Figure 1 Some embodiments of this disclosure provide a display device 1000, which can be any device that displays images, whether moving (e.g., video) or fixed (e.g., still images), and whether text or images. Exemplarily, the display device 1000 can be any product or component with display functionality, such as a television, laptop computer, tablet computer, mobile phone, personal digital assistant (PDA), navigator, wearable device, augmented reality (AR) device, virtual reality (VR) device, etc.

[0070] The display device 1000 can be an electroluminescent display device or a photoluminescent display device. When the display device 1000 is an electroluminescent display device, it can be an organic light-emitting diode (OLED) or a quantum dot light-emitting diode (QLED). When the display device 1000 is a photoluminescent display device, it can be a quantum dot photoluminescent display device.

[0071] The following describes some embodiments of the present disclosure using an organic electroluminescent display device as an example of the display device 1000.

[0072] In some embodiments, see Figure 1 and Figure 2A The display device 1000 includes a touch display module 100.

[0073] For example, such as Figure 1 and Figure 2AAs shown, the above-mentioned display device 1000 may also include a housing 200, and the touch display module 100 may be disposed within the housing 200.

[0074] In some embodiments, such as Figure 2A and Figure 3A As shown, the touch display module 100 may include a display panel 10 and a touch sensing layer 20.

[0075] For example, such as Figure 2A As shown, the touch display module 100 may further include a flexible circuit board 300, a touch chip 400, and other electronic components. The touch chip 400 may be disposed on the flexible circuit board 300; and the flexible circuit board 300 may be bonded to the end of the display panel 10.

[0076] It should be noted that the display panel 10 has opposing light-emitting and non-light-emitting sides. The light-emitting side refers to the side of the display panel 10 used for displaying images. Figure 3A The non-light-emitting side refers to the side opposite to the light-emitting side (the upper side of the display panel 10).

[0077] In some embodiments, see Figure 3A and Figure 3B The touch sensing layer 20 is disposed on the light-emitting side of the display panel 10.

[0078] For example, such as Figure 3A As shown, the touch sensing layer 20 is fabricated separately on the transparent substrate 24 and then bonded to the light-emitting side surface of the display panel 10.

[0079] For example, such as Figure 3B As shown, the touch sensing layer 20 is formed directly on the light-emitting side surface of the display panel 10, that is, the display panel 10 serves as the substrate supporting the touch sensing layer 20. This is beneficial to the display device 1000 (see [reference]). Figure 1 The thinner and lighter version of the )

[0080] The following describes some embodiments of the present disclosure by taking the example of the touch sensing layer 20 being formed directly on the light-emitting side of the display panel 10.

[0081] In some embodiments, see Figure 3A and Figure 3B The display panel 10 includes a display substrate 12 and an encapsulation layer 13 for encapsulating the display substrate 12.

[0082] Among them, such as Figure 3A and Figure 3BAs shown, the display substrate 12 has a light-emitting side and a non-light-emitting side disposed opposite to each other, and the encapsulation layer 13 is disposed on the light-emitting side of the display substrate 12. Here, the encapsulation layer 13 can be an encapsulation film or an encapsulation substrate.

[0083] like Figure 1 and Figure 2B As shown, the display panel 10 has a display area A1 and a peripheral area B1 located on at least one side of the display area A1. (See attached image) Figure 1 and Figure 2B The diagram uses the surrounding area B1 as an example to illustrate the display area A1.

[0084] See Figure 2B Display area A1 is the area for displaying the image, and display area A1 can be configured to set sub-pixels P.

[0085] For example, such as Figure 2B and Figure 3B As shown, the display panel 10 includes a substrate 110 and a plurality of sub-pixels P disposed on one side of the substrate 110 and located in the display area A1.

[0086] The substrate 110 mentioned above includes various types, which can be selected and set according to actual needs.

[0087] For example, the substrate 110 can be a rigid substrate. For instance, the rigid substrate can be a glass substrate or a PMMA (Polymethyl Methacrylate) substrate, etc.

[0088] For example, the substrate 110 can be a flexible substrate. For instance, the flexible substrate can be a polyethylene terephthalate (PET) substrate, a polyethylene naphthalate (PEN) substrate, or a polyimide (PI) substrate, etc.

[0089] Among them, see Figure 3B Each sub-pixel P includes a light-emitting device 120 and a pixel circuit 130 disposed on a substrate 110. The pixel circuit 130 includes a plurality of thin-film transistors 131.

[0090] like Figure 3B As shown, the thin-film transistor 131 includes an active layer 1311, a source 1312, a drain 1313, and a gate 1314, with the source 1312 and the drain 1313 respectively in contact with the active layer 1311.

[0091] It should be noted that the source 1312 and drain 1313 mentioned above are interchangeable, that is... Figure 3B 1312 in the text indicates the drain electrode. Figure 3B 1313 in the text represents the source pole.

[0092] like Figure 3B As shown, the light-emitting device 120 includes a first electrode 121, a light-emitting functional layer 122, and a second electrode 123. The first electrode 121 is electrically connected to the source 1312 or drain 1313 of a plurality of thin-film transistors 131 that serve as driving transistors. Figure 3B The diagram illustrates the electrical connection between the first electrode 121 and the source electrode 1312 of the thin-film transistor 131.

[0093] It should be noted that the second electrode 123 described above can be a continuous, solid pattern, for example, covering the display area A1 and extending to the first transition area B11. The descriptions of the display area A1 and the first transition area B11 can be found below.

[0094] Here, the first electrode 121 is the anode of the light-emitting device 120, and the second electrode 123 is the cathode of the light-emitting device 120; or, the first electrode 121 is the cathode of the light-emitting device 120, and the second electrode 123 is the anode of the light-emitting device 120. The following uses the example of the first electrode 121 being the anode of the light-emitting device 120 and the second electrode 123 being the cathode of the light-emitting device 120 to illustrate some embodiments of this disclosure.

[0095] See Figure 2B The peripheral area B1 is an area where no image is displayed. The peripheral area B1 can be configured to set up the scan drive circuit, circuit wiring and bonding part 30, etc.

[0096] For example, see Figure 1 The peripheral area B1 surrounds the display area A1 and includes a first border area B10, a second border area B20, a third border area B30 and a fourth border area B40 connected end to end.

[0097] Among them, the first border area B10 and the third border area B30 are located on opposite sides of the first direction Y of the display area A1, and the second border area B20 and the fourth border area B40 are located on opposite sides of the second direction X of the display area A1.

[0098] Among them, see Figure 1 and Figure 4 The first border area B10 may include a first transition area B11, a bending area B12, a second transition area B13, and a binding area B14. The display area A1, the first transition area B11, the bending area B12, the second transition area B13, and the binding area B14 are arranged sequentially along the first direction Y.

[0099] It should be noted that the first transition area B11 may include, for example, the first fan-out area B111. The second transition area B13 may include, for example, the second fan-out area B131, and may also include an electrostatic discharge protection area B132, a third fan-out area B133, and a chip setting area B134 disposed on the side of the second fan-out area B131 away from the display area A1.

[0100] Based on this, refer to Figure 2B and Figure 4 A binding part 30 is provided on the binding area B14, and the aforementioned flexible circuit board can be electrically connected to the binding part 30 in the binding area B14.

[0101] Here, in order to improve the bonding yield, such as Figure 2A , Figure 2B and Figure 4 As shown, multiple binding parts 30 can be provided on the binding area B14. The multiple binding parts 30 are spaced apart along the second direction X and are respectively bound to the flexible circuit board 300.

[0102] In some embodiments, such as Figure 2B and Figure 7 As shown, each binding part 30 may include a first sub-binding part 310 and two second sub-binding parts 320.

[0103] See Figure 7 The first sub-binding section 310 includes a plurality of display pins 311, which are configured to transmit power signals and / or display data signals, etc. For example, the plurality of display pins 311 include a data pin 312, a first power pin 313, and a second power pin 314. The data pin 312 is configured to transmit display data signals, the first power pin 313 is configured to transmit a first power supply voltage signal Vdd, and the second power pin 314 is configured to transmit a second power supply signal Vss.

[0104] See Figure 7 The second sub-binding part 320 includes a plurality of touch pins 321, which are connected to the touch chip 400 (see...). Figure 2A Electrical connection. The touch pin 321 is configured to transmit touch drive signals and / or touch sensing signals. Two second sub-binding portions 320 are disposed on opposite sides of the first sub-binding portion 310 in the second direction X.

[0105] like Figure 5A and Figure 6A As shown, the touch sensing layer 20 has a touch area A2 and a wiring area B2 located on at least one side. (See attached image) Figure 5A and Figure 6A The diagram illustrates the case where the wiring area B2 is located to the left, right, and bottom of the touch area A2.

[0106] See Figure 5A and Figure 6A Touch area A2 is an area capable of receiving touch operations, and touch area A2 can cover display area A1. Touch area A2 is configured to set touch structure 21.

[0107] For example, the touch sensing layer 20 includes a touch structure 21, which has a touch area A2 and is located within the touch area A2. The touch structure 21 includes a plurality of intersecting and mutually insulated driving electrodes 211 and a plurality of sensing electrodes 212.

[0108] In some embodiments, such as Figure 5A and Figure 5C As shown, multiple driving electrodes 211 are arranged along a first direction Y, and each driving electrode 211 includes multiple driving electrode blocks 2111 connected in series; multiple sensing electrodes 212 are arranged along a second direction X, and each sensing electrode 212 includes multiple sensing electrode blocks 2121 connected in series. The first direction Y intersects the second direction X; for example, the first direction Y is perpendicular to the second direction X.

[0109] In other embodiments, such as Figure 6A As shown, the driving electrode 211 is a first conductive line extending along the second direction X, and the sensing electrode 212 is a second conductive line extending along the first direction Y. Multiple first conductive lines are arranged along the first direction Y, and multiple second conductive lines are arranged along the second direction X. Here, the multiple first conductive lines and multiple second conductive lines can be located between multiple sub-pixels P to avoid blocking the light emitted by the light-emitting device 120.

[0110] The method of isolating multiple driving electrodes 211 and multiple sensing electrodes 212 from each other is not unique.

[0111] In some embodiments, see Figure 5A , Figure 5C and Figure 5D The areas where the multiple driving electrodes 211 and multiple sensing electrodes 212 do not overlap are located in the same layer, while the areas where the multiple driving electrodes 211 and multiple sensing electrodes 212 overlap are located in different layers.

[0112] For example, such as Figure 5D As shown, the touch sensing layer 20 includes a first conductive layer 210, an insulating layer 220, and a second conductive layer 230, with the first conductive layer 210 and the second conductive layer 230 disposed on opposite sides of the insulating layer 220.

[0113] Among them, see Figure 5B , Figure 5C and Figure 5DEach driving electrode 211 includes multiple driving electrode blocks 2111, and each driving electrode 211 is an integral structure. Each sensing electrode 212 includes multiple spaced sensing electrode blocks 2121 and multiple bridging portions 213, and each pair of adjacent sensing electrode blocks 2121 are electrically connected through the bridging portions 213.

[0114] In this case, all the driving electrodes 211 and all the sensing electrode blocks 2121 are located in the first conductive layer 210, and all the bridging portions 213 are located in the second conductive layer 230.

[0115] It should be noted that the above-mentioned "each driving electrode 211 is an integral structure" means that all parts of each driving electrode 211 are located on the same layer and are directly connected together.

[0116] The following describes some embodiments of the present disclosure using the example of a driving electrode 211 being a first conductive line extending along the second direction X and a sensing electrode 212 being a second conductive line extending along the first direction Y.

[0117] See Figure 2B and Figure 6A The routing area B2 is a region that cannot receive touch operations, and the routing area B2 can be located in the peripheral area B1. The routing area B2 is configured to set the touch signal line 22.

[0118] For example, such as Figure 6A As shown, the touch sensing layer 20 includes multiple touch signal lines 22, which are disposed in the wiring area B2, and the touch signal lines 22 are connected to the touch structure 21 and the touch pins 321 (see...). Figure 7 Electrical connection. Multiple touch signal lines 22 include a first touch signal line RL and a second touch signal line TL spaced apart. The first touch signal line RL is connected to the touch chip 400 (see...). Figure 1 The second touch signal line TL is electrically connected to the sensing electrode 212 and configured to transmit touch sensing signals; the second touch signal line TL is connected to the touch chip 400 (see...). Figure 1 It is electrically connected to the drive electrode 211 and configured to transmit touch drive signals.

[0119] At this time, the driving electrode 211 and the sensing electrode 212 can form a capacitive node, which is transmitted through the touch chip 400 (see...). Figure 1 The pulsed or alternating voltage applied to the driving electrode 211 can induce charge on the sensing electrode 212, and the amount of charge induced can be easily affected by external factors (such as the touch or proximity of a finger). That is, when a finger touches or approaches a capacitive node, a change in capacitance can occur at the capacitive node, and the touch chip 400 (see...) Figure 1The capacitance change can be measured by sensing electrode 212, and the position of the finger touching or approaching can be determined based on the capacitance change measured throughout the touch structure 21.

[0120] In order to meet the user's demand for narrow bezels, the area of ​​the first transition area B11 is reduced. Since multiple touch signal lines 22 are provided with sub-segments extending along the second direction X in the first transition area B11, the area occupied by the sub-segments extending along the second direction X in the first transition area B11 is reduced. That is, the trace width (cross-section) of multiple touch signal lines 22 is reduced, which increases the impedance of the touch signal lines 22 and reduces the touch performance of the display device 1000, failing to meet customer requirements.

[0121] Based on this, in some embodiments of the touch display module provided in this disclosure, see... Figure 6A , Figure 10 and Figure 11 The multiple touch signal lines 22 include multiple sub-traces 23 extending along the second direction X.

[0122] Among the multiple sub-routes 23 extending along the second direction X, a portion of the sub-routes 23 are located in the first transition zone B11, for example, a portion of the sub-routes 23 are located in the first fan-out zone B111 (see...). Figure 4 A portion of sub-segment 23 is located in the second transition zone B13, for example, a portion of sub-segment 23 is located in the second fan-out zone B131 (see...). Figure 4 ).

[0123] In this case, such as Figure 2A , Figure 8 and Figure 10 As shown, since some of the multiple sub-segments 23 extending along the second direction X are located in the first transition region B11 and some are located in the second transition region B13, the number of multiple sub-segments 23 extending along the second direction X located in the first transition region B11 can be reduced. This allows the trace width (cross-section) of the multiple sub-segments 23 extending along the second direction X located in the first transition region B11 to be increased, thereby reducing the impedance of the multiple touch signal lines 22, including the multiple sub-segments 23 extending along the second direction X located in the first transition region B11, and improving the overall touch performance of the display device 1000.

[0124] Furthermore, since the second transition area B13 is located on the side of the bending area B12 away from the display area A1, i.e., it is bent to the non-light-emitting side of the display panel 10, the size of the second transition area B13 will not affect the narrow bezel design of the display device 1000. In this way, the trace width (cross-section) of the multiple sub-trace segments 23 extending along the second direction X in the second transition area B13 can also be increased. This reduces the impedance of the multiple touch signal lines 22, including the multiple sub-trace segments 23 extending along the second direction X in the second transition area B13, and improves the display device 1000 (see...). Figure 1 Overall touch performance.

[0125] For example, see Figure 4 , Figure 5A and Figure 6A The multiple touch signal lines 22 include multiple first touch traces 221 and multiple second touch traces 222. The multiple first touch traces 221 are electrically connected to the touch structure 21 on a first side of the touch area A2, and the multiple second touch traces 222 are electrically connected to the touch structure 21 on a second side of the touch area A2. The first side is the side of the touch area A2 closest to the first transition area B11, and the second side is at least one side of the touch area A2 in the second direction X.

[0126] Among them, see Figure 6A and Figure 10 The first touch trace 221 includes a first sub-trace segment 231, which extends along the second direction X and is located in the first transition area B11. The second touch trace 222 includes a second sub-trace segment 232, which extends along the second direction X and is located in the second transition area B13.

[0127] This configuration avoids intersections between multiple first touch traces 221 and multiple second touch traces 222, simplifies the wiring complexity of multiple first touch traces 221 and multiple second touch traces 222, and reduces manufacturing costs.

[0128] For example, such as Figure 2B and Figure 6A As shown, the multiple touch signal lines 22 include multiple wiring bundles 40, each wiring bundle 40 being connected to a second sub-binding part 320 (see...). Figure 7 The multiple wiring bundles 40 consist of multiple first wiring bundles 41 and multiple second wiring bundles 42. Each first wiring bundle 41 consists of multiple first touch wiring lines 221, and each second wiring bundle 42 consists of multiple second touch wiring lines 222. The multiple second wiring bundles 42 are located on opposite sides of the multiple first wiring bundles 41.

[0129] In addition, see Figure 5B and Figure 6BThe multiple touch signal lines 22 may also include multiple third touch traces 223, which are electrically connected to the touch structure 21 on the third side of the touch area A2. The third side is the side of the touch area A2 opposite to the first side. At least one third touch trace 223 may include a third sub-trace segment ( Figure 5B and Figure 6B (Not marked in the text), the third sub-line segment ( Figure 5B and Figure 6B (Not marked in the text) Extends along the second direction X and is located in the second transition zone B13.

[0130] This configuration avoids intersections between multiple first touch traces 221, multiple second touch traces 222, and multiple third touch traces 223, simplifies the wiring complexity of these traces, and reduces manufacturing costs.

[0131] For example, the multiple wiring harnesses 40 also include multiple third wiring harnesses, each of which consists of multiple third touch lines 223. The multiple third wiring harnesses are located on opposite sides of the multiple second wiring harnesses 42.

[0132] It is understandable that when multiple driving electrodes 211 are arranged along the first direction Y and multiple sensing electrodes 212 are arranged along the second direction X, the first touch line 221 and the third touch line 223 are both electrically connected to the sensing electrode 212, and the second touch line 222 is electrically connected to the driving electrode 211. That is, the first touch signal line RL includes the first touch line 221 and the third touch line 223, and the second touch signal line TL includes the second touch line 222.

[0133] With multiple driving electrodes 211 arranged along the second direction X and multiple sensing electrodes 212 arranged along the first direction Y, the first touch trace 221 and the third touch trace 223 are both electrically connected to the driving electrodes 211, and the second touch trace 222 is electrically connected to the sensing electrodes 212. That is, the first touch signal line RL includes the second touch trace 222, and the second touch signal line TL includes the first touch trace 221 and the third touch trace 223.

[0134] The following uses multiple touch signal lines 22, including multiple first touch lines 221 and multiple second touch lines 222, as an example to illustrate some embodiments of this disclosure.

[0135] In some embodiments, see Figure 2B and Figure 4 The surface of the light-emitting side of the display panel 10 is rectangular, and the two corners of the display panel 10 near the first transition zone B11 are arc corners.

[0136] In this case, such as Figure 6A and Figure 8 As shown, the plurality of second wiring bundles 42 include a plurality of first sub-bundles 422 and a plurality of second sub-bundles 421. Both the second sub-bundles 421 and the first sub-bundles 422 are composed of at least one second touch wiring 222, and the second sub-bundles 421 are located on the side of the first sub-bundles 422 away from the plurality of first wiring bundles 41.

[0137] For example, such as Figure 2B and Figure 8 As shown, the display panel 10 includes a first binding part 31, a second binding part 32, a third binding part 33, and a fourth binding part 34 arranged sequentially along the second direction X. Each binding part 30 includes a first sub-binding part 310 and two second sub-binding parts 320, and the two second sub-binding parts 320 are disposed on opposite sides of the first sub-binding part 310 in the second direction X.

[0138] Here, as Figure 2B and Figure 8 As shown, the second sub-bundle 421 is electrically connected to the second sub-binding part 320 in the first binding part 31 that is relatively far from the fourth binding part 34, and is also electrically connected to the second sub-binding part 320 in the fourth binding part 34 that is relatively far from the first binding part 31.

[0139] In addition, such as Figure 2B and Figure 8 As shown, the first sub-bundle 422 is electrically connected to the second sub-binding part 320 of the first binding part 31 which is closer to the fourth binding part 34, and is also electrically connected to the second sub-binding part 320 of the fourth binding part 34 which is closer to the first binding part 31.

[0140] Based on this, the structures of the first sub-bundle 422 and the second sub-bundle 421 are not the same.

[0141] For example, such as Figure 2B and Figure 8 As shown, the first sub-bundle 422 includes a first sub-bundle segment 4221, a second sub-bundle segment 4222, a third sub-bundle segment 4223, a fourth sub-bundle segment 4224, and a fifth sub-bundle segment 4225 connected in sequence.

[0142] The first sub-bundle segment 4221 is electrically connected at one end to the second sub-binding portion 320, and the other end extends along the first direction Y to the second transition region B13. The second sub-bundle segment 4222 extends along the second direction X and is located in the second transition region B13. The third sub-bundle segment 4223 extends along the first direction Y to the first transition region B11. The fourth sub-bundle segment 4224 extends along the second direction X and is located in the first transition region B11. The fifth sub-bundle segment 4225 extends along the first direction Y and is connected to the touch structure 21 (see [reference]) on one side of the touch area A2 in the second direction X. Figure 6A Electrical connection.

[0143] At this time, refer to Figure 8 and Figure 10 Multiple sub-routes 23 located in the first transition zone B11 and extending along the second direction X, including multiple sub-routes 23 of the fourth sub-bundle segment 4224. Multiple sub-routes 23 located in the second transition zone B13 and extending along the second direction X, including multiple sub-routes 23 of the second sub-bundle segment 4222.

[0144] For example, such as Figure 2B and Figure 8 As shown, the second sub-bundle 421 includes a sixth sub-bundle segment 4211, a seventh sub-bundle segment 4212, and an eighth sub-bundle segment 4213 connected in sequence.

[0145] Of these, one end of the sixth sub-bundle segment 4211 is electrically connected to the second sub-binding portion 320, and the other end extends along the first direction Y to the first transition region B11. The seventh sub-bundle segment 4212 extends along the second direction X and is located in the first transition region B11. The eighth sub-bundle segment 4213 extends along the first direction Y and is connected to the touch structure 21 (see [reference]) on one side of the touch area A2 in the second direction X. Figure 6A Electrical connection.

[0146] At this time, refer to Figure 8 and Figure 10 The multiple sub-routes 23 located in the first transition zone B11 and extending along the second direction X also include the multiple sub-routes 23 of the seventh sub-bundle 4212.

[0147] In addition, such as Figure 2B , Figure 8 and Figure 9 As shown, the plurality of first wiring harnesses 41 include two third sub-bundles 411 and a plurality of fourth sub-bundles 412, with the two third sub-bundles 411 respectively disposed on opposite sides of the plurality of fourth sub-bundles 412.

[0148] For example, such as Figure 2B and Figure 8 As shown, the display panel 10 includes a first binding part 31, a second binding part 32, a third binding part 33, and a fourth binding part 34 arranged sequentially along the second direction X. Each binding part 30 includes a first sub-binding part 310 and two second sub-binding parts 320, and the two second sub-binding parts 320 are disposed on opposite sides of the first sub-binding part 310 in the second direction.

[0149] Here, as Figure 2B and Figure 9 As shown, the third sub-bundle 411 is electrically connected to the second sub-binding part 320 of the second binding part 32, which is farther away from the fourth binding part 34, and is electrically connected to the second sub-binding part 320 of the third binding part 33, which is farther away from the first binding part 31.

[0150] In addition, such as Figure 2B and Figure 9 As shown, the fourth sub-bundle 412 is electrically connected to the second sub-binding part 320 of the second binding part 32 which is closer to the fourth binding part 34, and to the second sub-binding part 320 of the third binding part 33 which is closer to the first binding part 31.

[0151] Based on this, the structures of the third sub-bundle 411 and the fourth sub-bundle 412 are not the same.

[0152] For example, such as Figure 2B , Figure 8 and Figure 9 As shown, the third sub-bundle 411 includes a first routing cluster 4111 and a second routing cluster 4112 arranged in parallel, and the first routing cluster 4111 is located on the side of the second routing cluster 4112 close to the plurality of fourth sub-bundles 412. That is, the second routing cluster 4112 is located between the first routing cluster 4111 and the first sub-bundle 422.

[0153] Among them, see Figure 8 The first trace cluster 4111 includes a first trace cluster segment 4113 and a second trace cluster segment 4114. One end of the first trace cluster segment 4113 is electrically connected to the second sub-bonding portion 320, and the other end extends along the first direction Y to the first transition region B11. The second trace cluster segment 4114 extends along the second direction X to the boundary of the display area A1 and is located in the first transition region B11. The second trace cluster segment 4114 is located in the touch area A2 (see...). Figure 6A On one side of the first direction Y, namely the first transition area B11 and the touch structure 21 (see...) Figure 6A Electrical connection.

[0154] See Figure 8 The second wiring cluster 4112 includes a third wiring cluster segment 4115 and a fourth wiring cluster segment 4116. One end of the third wiring cluster segment 4115 is electrically connected to the second sub-binding portion 320, and the other end extends along the first direction Y to the first transition region B11. The fourth wiring cluster segment 4116 extends along the second direction X and is located on the side of the third sub-bundle segment 4223 away from the fifth sub-bundle segment 4225. For example, the fourth wiring cluster segment 4116 extends along the second direction X to the connection point of the third sub-bundle segment 4223 and the fourth sub-bundle segment 4224, and has a certain distance from the connection point to avoid short-circuiting the fourth wiring cluster segment 4116 with the third sub-bundle segment 4223 or the fourth sub-bundle segment 4224. The fourth wiring cluster segment 4116 is located in the first transition region B11 and in the touch area A2 (see...). Figure 6A On one side of the first direction Y, namely the first transition area B11 and the touch structure 21 (see...) Figure 6A Electrical connection.

[0155] At this time, refer to Figure 10 and Figure 11 The multiple sub-routing segments 23 located in the first transition zone B11 and extending along the second direction X also include multiple sub-routing segments 23 of the second routing cluster 4114 and multiple sub-routing segments 23 of the fourth routing cluster 4116.

[0156] For example, such as Figure 9 As shown, the fourth sub-bundle 412 includes a ninth sub-bundle segment 4121 and a tenth sub-bundle segment 4122 connected in sequence.

[0157] In this configuration, one end of the ninth sub-bundle segment 4121 is electrically connected to the second sub-binding portion 320, and the other end extends along the first direction Y to the first transition region B11. The tenth sub-bundle segment 4122 extends along the second direction X and connects to the touch structure 21 (see [link]) in the first transition region B11. Figure 5A Electrical connection.

[0158] At this time, refer to Figure 10 and Figure 11 The multiple sub-routes 23 located in the first transition zone B11 and extending along the second direction X also include the multiple sub-routes 23 of the tenth sub-bundle 4122.

[0159] It should be noted that, for reference Figure 2B , Figure 8 and Figure 9 The display panel 10 has a first axis of symmetry L extending along a first direction Y; the first wiring harness 41 and the second wiring harness 42 are symmetrically arranged with respect to the first axis of symmetry L. This arrangement results in neater wiring and lower cost for the display panel 10.

[0160] It should be understood that, such as Figure 2B and Figure 7 As shown, the display panel 10 also includes multiple data lines, multiple power signal lines, a data connection line DL, and multiple power connection lines VL.

[0161] The data line is located in the display area A1 and is electrically connected to the pixel circuit 130. The data connection line DL is located on the side of the display area A1 near the bonding area B14 and is electrically connected to the data line and the data pin 312.

[0162] In addition, the power signal line includes a first power signal line, which is disposed in the display area A1 and electrically connected to the first electrode 121 of the light-emitting device 120 to provide a first power voltage signal Vdd to the light-emitting device 120.

[0163] Based on this, refer to Figure 7The power connection line VL is disposed on at least one side of the display area A1, and the power connection line VL is electrically connected to the first power signal line and at least one first power pin 313, or electrically connected to the second electrode 123 of the light-emitting device 120 and at least one second power pin 314. Here, Figure 7 Only the middle part is shown Figure 1 The power connection line VL is shown on the side of the first frame area B10.

[0164] At this time, refer to Figure 6A , Figure 7 and Figure 10 In the multiple touch signal lines 22, the orthographic projection of the sub-segment 23 located in the second transition region B13 onto the reference plane at least partially overlaps with the orthographic projection of the power connection line VL onto the reference plane. Furthermore, the film layer containing the multiple power connection lines VL is located between the film layer containing the multiple data connection lines DL and the film layer containing the multiple touch signal lines 22, thereby providing signal shielding, reducing interference between the data connection lines DL and the touch signal lines 22, and improving the display device 1000 (see [reference]). Figure 1 Overall touch performance.

[0165] It should be noted that the reference plane is the plane defined by the first direction Y and the second direction X.

[0166] For example, see Figure 2B and Figure 3B Along the third direction Z, the display panel 10 includes a substrate 110, a first gate conductive layer GT1, a second gate conductive layer GT2, a first source / drain conductive layer SD1, a second source / drain conductive layer SD2, and a touch sensing layer 20. The third direction Z is perpendicular to the plane defined by the first direction Y and the second direction X.

[0167] Here, the reference plane can be the surface of the substrate 110 near the first gate conductive layer GT1. The following description is in conjunction with the accompanying drawings, with the substrate 110 used instead of the reference plane.

[0168] Among them, combining 3B, Figure 5A and Figure 7 The data connection line DL is located on the first gate conductive layer GT1 and / or the second gate conductive layer GT2. The power connection line VL is located on the first source-drain conductive layer SD1 and / or the second source-drain conductive layer SD2. Multiple touch signal lines 22 are located on the touch sensing layer 20.

[0169] It is understandable that, among the multiple touch signal lines 22 mentioned above, the embodiment in which the orthographic projection of the sub-segment 23 located in the second transition region B13 on the substrate 110 at least partially overlaps with the orthographic projection of the power connection line VL2 on the substrate 110 is not unique.

[0170] like Figure 7As shown, the multiple power connection lines VL include multiple first power connection lines VL1 and multiple second power connection lines VL2. Both the multiple first power connection lines VL1 and the multiple second power connection lines VL2 are at least partially located in the second transition region B13.

[0171] In some embodiments, see Figure 5A , Figure 7 and Figure 10 Among the multiple touch signal lines 22, the sub-trace segment 23 located in the second transition region B13 and extending along the second direction X has a set line segment on the substrate 110 (see Figure 3B The orthographic projection of the first power connection line VL1 onto the substrate 110 (see...) Figure 3B Within the range of the orthographic projection of ).

[0172] It should be noted that the set segment of the sub-routing segment 23 located in the second transition zone B13 and extending along the second direction X can be, for example, the portion between two sets of first power supply pins 313 that are spaced apart in the same bonding part 30.

[0173] For example, see Figure 2B and Figure 7 The display panel 10 includes a plurality of bonding portions 30 disposed in the bonding area B14. Each bonding portion 30 includes a first sub-bonding portion 310. The first sub-bonding portion 310 includes a plurality of display pins 311. The plurality of display pins 311 include two first power pin groups 313' disposed at intervals. Each first power pin group 313' includes at least one first power pin 313.

[0174] Among them, such as Figure 7 As shown, the first power connection line VL1 includes a first sub-connection segment VL11, a second sub-connection segment VL12, and a third sub-connection segment VL13 connected in sequence. The first sub-connection segment VL11 and the third sub-connection segment VL13 extend along a first direction Y and are respectively connected to two first power pin groups 313'. The second sub-connection segment VL12 extends along a second direction X.

[0175] Based on this, such as Figure 5A , Figure 7 and Figure 10 As shown, among the multiple touch signal lines 22, the sub-trace segment 23 located in the second transition region B13 and extending along the second direction X has a set line segment on the substrate 110 (see...). Figure 3B The orthographic projection of the second sub-connection segment VL12 onto the substrate 110 (see...) Figure 3B Within the range of the orthographic projection of ).

[0176] In some embodiments, see Figure 5A , Figure 7 and Figure 10 Among the multiple touch signal lines 22, the sub-trace segment 23 located in the second transition region B13 and extending along the first direction Y has a set line segment on the substrate 110 (see Figure 3B The orthographic projection of the second power connection line VL2 onto substrate 110 (see...) Figure 3B Within the range of the orthographic projection of ).

[0177] It should be noted that the set line segment of the sub-line segment 23 located in the second transition area B13 and extending along the first direction Y can be, for example, the part of the sub-line segment 23 that is relatively far away from the touch pin 321 to which it is connected.

[0178] For example, see Figure 2B and Figure 7 The display panel 10 includes a plurality of bonding portions 30 disposed in the bonding area B14. Each bonding portion 30 includes a first sub-bonding portion 310. The first sub-bonding portion 310 includes a plurality of display pins 311. The plurality of display pins 311 include two second power pin groups 314' disposed at intervals. Each second power pin group 314' includes at least one second power pin 314.

[0179] Among them, such as Figure 7 As shown, the second power connection line VL2 includes a fourth sub-connection segment VL21 and a fifth sub-connection segment VL22 connected in sequence. The fourth sub-connection segment VL21 extends along the first direction Y, one end of the fifth sub-connection segment VL22 is connected to the fourth sub-connection segment VL21, and the other end is electrically connected to the second power pin group 314'.

[0180] Based on this, such as Figure 5A , Figure 7 and Figure 10 As shown, among the multiple touch signal lines 22, the sub-trace segment 23 located in the second transition region B13 and extending along the first direction Y has a set line segment on the substrate 110 (see Figure 3B The orthographic projection on the fourth sub-connection segment VL21 on substrate 110 (see...) Figure 3B Within the range of the orthographic projection of ).

[0181] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A touch display module, characterized in that, include: The display panel has a display area, a first transition area, a bending area, a second transition area and a binding area arranged sequentially along a first direction; A touch structure is formed with a touch area that covers the display area, and along the first direction, the first transition area is located on one side of the touch area; Multiple touch signal lines, including multiple sub-routes extending along a second direction, the second direction intersecting with the first direction; among the multiple sub-routes, a portion of the sub-routes are located in the first transition area, and a portion of the sub-routes are located in the second transition area; the touch signal lines are electrically connected to the touch structure; The multiple touch signal lines include: Multiple first touch traces are electrically connected to the touch structure on a first side of the touch area; the first side is the side of the touch area close to the first transition area; the first touch trace includes a first sub-trace segment, the first sub-trace segment extends along the second direction and is located in the first transition area; Multiple second touch traces are electrically connected to the touch structure on a second side of the touch area; the second side is at least one side of the touch area in a second direction; at least one second touch trace includes a second sub-trace segment, the second sub-trace segment extends along the second direction and is located in the second transition area.

2. The touch display module according to claim 1, characterized in that, The display panel includes multiple bonding portions disposed in the bonding area. Each bonding portion includes a first sub-bonding portion and two second sub-bonding portions. The first sub-bonding portion includes multiple display pins, and the second sub-bonding portion includes multiple touch pins. The touch signal line is electrically connected to the touch pins. The two second sub-bonding portions are disposed on opposite sides of the first sub-bonding portion in a second direction.

3. The touch display module according to claim 2, characterized in that, The multiple touch signal lines include multiple wiring bundles, each wiring bundle consisting of multiple touch signal lines connected to a second sub-binding part; The plurality of wiring harnesses include a plurality of first wiring harnesses and a plurality of second wiring harnesses. Each first wiring harness consists of a plurality of first touch lines, and each second wiring harness consists of a plurality of second touch lines. The plurality of second wiring harnesses are located on opposite sides of the plurality of first wiring harnesses.

4. The touch display module according to claim 3, characterized in that, The plurality of second wiring bundles include a plurality of first sub-bundles, each of which consists of at least one second touch wiring; the first sub-bundle includes a first sub-bundle segment, a second sub-bundle segment, a third sub-bundle segment, a fourth sub-bundle segment, and a fifth sub-bundle segment connected in sequence; One end of the first sub-beam segment is electrically connected to the second sub-binding portion, and the other end extends along the first direction to the second transition region. The second sub-beam segment extends along the second direction and is located in the second transition region. The third sub-beam segment extends along the first direction to the first transition region. The fourth sub-beam segment extends along the second direction and is located in the first transition region. The fifth sub-beam segment extends along the first direction and is electrically connected to the touch structure on one side of the touch area in the second direction.

5. The touch display module according to claim 4, characterized in that, The plurality of second wiring bundles also include a plurality of second sub-bundles, each sub-bundle consisting of at least one second touch wiring; the second sub-bundle includes a sixth sub-bundle segment, a seventh sub-bundle segment and an eighth sub-bundle segment connected in sequence; One end of the sixth sub-bundle segment is electrically connected to the second sub-binding portion, and the other end extends along the first direction to the first transition region; the seventh sub-bundle segment extends along the second direction and is located in the first transition region; the eighth sub-bundle segment extends along the first direction and is electrically connected to the touch structure on one side of the touch area in the second direction.

6. The touch display module according to claim 5, characterized in that, The second sub-bundle is located on the side of the first sub-bundle that is away from the plurality of first wiring bundles.

7. The touch display module according to claim 6, characterized in that, The plurality of first wiring bundles include two third sub-bundles, and the third sub-bundles include first wiring clusters and second wiring clusters arranged in parallel. The first wiring cluster includes a first wiring cluster segment and a second wiring cluster segment. One end of the first wiring cluster segment is electrically connected to the second sub-binding portion, and the other end extends along the first direction to the first transition area. The second wiring cluster segment extends along the second direction to the boundary of the display area and is located in the first transition area. The second wiring cluster segment is electrically connected to the touch structure. The second wiring cluster includes a third wiring cluster segment and a fourth wiring cluster segment. One end of the third wiring cluster segment is electrically connected to the second sub-binding portion, and the other end extends along the first direction to the first transition area. The fourth wiring cluster segment extends along the second direction and is located on the side of the third sub-bundle segment away from the fifth sub-bundle segment. The fourth wiring cluster segment is located in the first transition area and is electrically connected to the touch structure.

8. The touch display module according to claim 7, characterized in that, The second wiring cluster is located between the first wiring cluster and the first sub-bundle.

9. The touch display module according to claim 7, characterized in that, The plurality of first wiring harnesses also include a plurality of fourth sub-bundles, the fourth sub-bundles including a ninth sub-bundle segment and a tenth sub-bundle segment connected in sequence; One end of the ninth sub-bundle segment is electrically connected to the second sub-binding portion, and the other end extends along the first direction to the first transition region; the tenth sub-bundle segment extends along the second direction and is electrically connected to the touch structure in the first transition region.

10. The touch display module according to claim 9, characterized in that, The two third sub-bundles are respectively disposed on opposite sides of the plurality of fourth sub-bundles.

11. The touch display module according to claim 10, characterized in that, The display panel includes a first binding part, a second binding part, a third binding part, and a fourth binding part arranged sequentially along the second direction; In the first binding part, the second sub-binding part, which is farther away from the fourth binding part, is electrically connected to the second sub-bundle; the second sub-binding part, which is closer to the fourth binding part, is electrically connected to the first sub-bundle. In the second binding part, the second sub-binding part that is farther away from the fourth binding part is electrically connected to the third sub-bundle; the second sub-binding part that is closer to the fourth binding part is electrically connected to the fourth sub-bundle. In the third binding part, the second sub-binding part, which is farther away from the first binding part, is electrically connected to the third sub-bundle; the second sub-binding part, which is closer to the first binding part, is electrically connected to the fourth sub-bundle. In the fourth binding part, the second sub-binding part that is farther away from the first binding part is electrically connected to the second sub-bundle; the second sub-binding part that is closer to the first binding part is electrically connected to the first sub-bundle.

12. The touch display module according to any one of claims 3 to 11, characterized in that, The display panel has a first axis of symmetry extending along the first direction; the first wiring harness and the second wiring harness are symmetrically arranged with respect to the first axis of symmetry.

13. The touch display module according to any one of claims 3 to 11, characterized in that, The touch structure includes driving electrodes and sensing electrodes; The first touch trace is electrically connected to the sensing electrode, and the second touch trace is electrically connected to the driving electrode; or, the first touch trace is electrically connected to the driving electrode, and the second touch trace is electrically connected to the sensing electrode.

14. The touch display module according to any one of claims 1 to 11, characterized in that, The display panel also includes: Multiple data connection cables are located on the side of the display area near the binding area; Multiple power connection cables are provided on at least one side of the display area; Among the plurality of touch signal lines, the orthographic projection of the sub-trace segment located in the second transition region on the reference plane at least partially overlaps with the orthographic projection of the power connection line on the reference plane; and the film layer in which the plurality of power connection lines are located is located between the film layer in which the plurality of data connection lines are located and the film layer in which the plurality of touch signal lines are located; the reference plane is the plane determined by the first direction and the second direction.

15. The touch display module according to claim 14, characterized in that, The plurality of power connection lines include a plurality of first power connection lines and a plurality of second power connection lines, wherein the plurality of first power connection lines and the plurality of second power connection lines are at least partially located in the second transition region; Among the multiple touch signal lines, the orthographic projection of the sub-trace segment located in the second transition area and extending along the second direction on the reference surface is within the range of the orthographic projection of the first power connection line on the reference surface. Among the multiple touch signal lines, the orthographic projection of the sub-trace segment located in the second transition area and extending along the first direction on the reference surface is within the range of the orthographic projection of the second power connection line on the reference surface.

16. The touch display module according to claim 15, characterized in that, The display panel includes a plurality of bonding portions disposed in the bonding area. Each bonding portion includes a first sub-bonding portion. The first sub-bonding portion includes a plurality of display pins. The plurality of display pins include two first power pin groups disposed at intervals. Each first power pin group includes at least one first power pin. The first power connection line includes a first sub-connection segment, a second sub-connection segment, and a third sub-connection segment connected in sequence. The first sub-connection segment and the third sub-connection segment extend along the first direction and are respectively connected to the two first power pin groups; the second sub-connection segment extends along the second direction. Among the multiple touch signal lines, the orthographic projection of the sub-trace segment located in the second transition area and extending along the second direction on the reference surface is within the range of the orthographic projection of the second sub-connection segment on the reference surface.

17. The touch display module according to claim 15, characterized in that, The display panel includes a plurality of bonding portions disposed in the bonding area. Each bonding portion includes a first sub-bonding portion. The first sub-bonding portion includes a plurality of display pins. The plurality of display pins include two second power pin groups disposed at intervals. Each second power pin group includes at least one second power pin. The second power connection line includes a fourth sub-connection segment and a fifth sub-connection segment connected in sequence. The fourth sub-connection segment extends along the first direction. One end of the fifth sub-connection segment is connected to the fourth sub-connection segment, and the other end is electrically connected to the second power pin group. Among the multiple touch signal lines, the orthographic projection of the sub-trace segment located in the second transition zone and extending along the first direction on the reference surface is within the range of the orthographic projection of the fourth sub-connection segment on the reference surface.

18. The touch display module according to claim 14, characterized in that, Along a third direction, the display panel includes a substrate, a first gate conductive layer, a second gate conductive layer, a first source / drain conductive layer, a second source / drain conductive layer, and a touch sensing layer; the third direction is perpendicular to the plane defined by the first direction and the second direction; The data connection lines are located in the first gate conductive layer and / or the second gate conductive layer; the power connection lines are located in the first source-drain conductive layer and / or the second source-drain conductive layer; and the multiple touch signal lines are located in the touch sensing layer.

19. A display device, characterized in that, Includes the touch display module according to any one of claims 1 to 18.

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