Display panel and display device

Abstract

The present disclosure relates to the technical field of display. Disclosed are a display panel and a display device. The display panel comprises: a substrate; a drive array layer located on one side of the substrate; a plurality of bonding electrodes located on the side of the drive array layer away from the substrate; light-emitting elements located on the side of the bonding electrodes away from the substrate and electrically connected to the drive array layer by means of the bonding electrodes; and a touch-control electrode layer electrically connected to touch-control electrode connecting lines, wherein in a direction perpendicular to the plane where the substrate is located, the touch-control electrode layer is located on the side of the bonding electrodes away from the substrate, and the touch-control electrode connecting lines are located on the side of the bonding electrodes closer to the substrate. The display device comprises the display panel.

Description

Display panel and display device

[0001] Cross-reference of related applications

[0002] This application claims priority to Chinese Patent Application No. 202411930259.6, entitled “Display Panel and Display Device”, filed on December 25, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of display technology, and more particularly to a display panel and a display device. Background Technology

[0004] As a next-generation mainstream display technology, micro light-emitting diodes (micro LEDs) are widely applicable in optoelectronics, microelectronics, electronic information science, and optics due to their advantages such as high luminous efficiency, small size, low power consumption, and long product lifespan. Micro LED display technology uses micron-sized LEDs as light-emitting pixel units, assembling them onto a driving panel to form a high-density LED array. Micro LED display panels have advantages such as high contrast, high resolution, long lifespan, low power consumption, fast response speed, and good thermal stability. Their applications can be expanded from flat panel displays to spatial displays, wearable devices, biomedical detection, and many other fields. Following organic light-emitting diodes (OLEDs), it is another display technology with advantages of thinness and power saving.

[0005] With the rapid development of display technology, touch panels, as a medium for human-computer interaction, play a crucial role in display technology. Existing touch solutions mainly include resistive and capacitive types, among which capacitive touch screens are more widely used. The basic principle is to use tools such as fingers or styluses to generate capacitance with the touch screen, and use the electrical signal formed by the change in capacitance before and after the touch to confirm whether the panel has been touched and to confirm the touch coordinates.

[0006] However, the touch performance of micro LED display products in related technologies cannot be guaranteed, which limits the application scope of micro LED display products. Summary of the Invention

[0007] To address the aforementioned technical problems, this disclosure provides a display panel and a display device to solve the problem of poor touch performance in micro LED display devices in the related art.

[0008] This disclosure provides a display panel, including: a substrate;

[0009] The driving array layer is located on one side of the substrate;

[0010] Multiple bonded electrodes are located on the side of the driving array layer away from the substrate;

[0011] The light-emitting device is located on the side of the bonding electrode away from the substrate, and the light-emitting device is electrically connected to the driving array layer through the bonding electrode;

[0012] Touch electrode layer, the touch electrode layer is electrically connected to the touch electrode connection line;

[0013] In a direction perpendicular to the plane of the substrate, the touch electrode layer is located on the side of the bonding electrode away from the substrate, and the touch electrode connection line is located on the side of the bonding electrode closer to the substrate.

[0014] Based on the same inventive concept, this disclosure also provides a display device, which includes the above-described display panel.

[0015] The technical solution provided in this disclosure has the following advantages compared with related technologies:

[0016] The display panel disclosed herein includes a touch electrode layer electrically connected to touch electrode connection lines. These connection lines provide or receive touch signals from the touch electrode layer, thereby enabling the touch functionality of the display panel. In this disclosure, the touch electrode layer is located on the side of the bonding electrode away from the substrate in a direction perpendicular to the plane of the substrate, while the touch electrode connection lines are located on the side of the bonding electrode closer to the substrate. Specifically, in a direction perpendicular to the plane of the substrate, with the location of the bonding electrode as a reference, the touch electrode connection lines are located below the bonding electrode, and the touch electrode layer is located above the bonding electrode. In this disclosure, the touch electrode layer, which enables touch functionality, is located on the side of the bonding electrode away from the substrate, while the touch electrode connection lines electrically connected to the touch electrode layer are located on the side of the bonding electrode closer to the substrate. For example, if located in at least one conductive film layer of a driving array layer, the electrical signals driving the light-emitting device to emit light are mainly transmitted to the bonding electrode through the driving array layer, thereby controlling the light-emitting device to emit light. This disclosure also provides touch electrode connection lines electrically connected to the touch electrode layer, which are disposed on the side of the bonding electrode closer to the substrate. Since the side of the bonding electrode closer to the substrate generally has multiple conductive metal layers, such as multiple conductive metal layers in the driving array layer, these layers can be used to fabricate the touch electrode connection lines to lead out the touch signals from the touch electrode layer. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0018] To more clearly illustrate the technical solutions in the embodiments or related technologies of this disclosure, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0019] Figure 1 is a schematic diagram of a planar structure of a display panel provided in an embodiment of this application;

[0020] Figure 2 is a schematic diagram of a cross-sectional structure along A-A' in Figure 1;

[0021] Figure 3 is a schematic diagram of another cross-sectional structure along the A-A' direction in Figure 1;

[0022] Figure 4 is a schematic diagram of another planar structure of the display panel provided in an embodiment of this application;

[0023] Figure 5 is a schematic diagram of a cross-sectional structure along the B-B' direction in Figure 4;

[0024] Figure 6 is a schematic diagram of another planar structure of the display panel provided in an embodiment of this application;

[0025] Figure 7 is a schematic diagram of a cross-sectional structure along the C-C' direction in Figure 6;

[0026] Figure 8 is a schematic diagram of another planar structure of the display panel provided in an embodiment of this application;

[0027] Figure 9 is a schematic diagram of the connection structure of the touch electrode layer and the touch electrode connecting line in a part of Figure 8;

[0028] Figure 10 is a schematic diagram of another planar structure of the display panel provided in an embodiment of this application;

[0029] Figure 11 is a schematic diagram of the connection structure of the touch electrode layer and the touch electrode connecting line in a part of Figure 10;

[0030] Figure 12 is a schematic diagram of the touch unit in Figure 8;

[0031] Figure 13 is a schematic diagram of the touch unit in Figure 10;

[0032] Figure 14 is a schematic diagram of another planar structure of the display panel provided in an embodiment of this application;

[0033] Figure 15 is a schematic diagram of the connection structure of the touch electrode layer and the touch electrode connecting line in a part of Figure 14;

[0034] Figure 16 is a schematic diagram of another planar structure of the display panel provided in an embodiment of this application;

[0035] Figure 17 is a schematic diagram of the connection structure of the touch electrode layer and the touch electrode connecting line in a part of Figure 16;

[0036] Figure 18 is a schematic diagram of a cross-sectional structure along the D1-D1' direction in Figure 8;

[0037] Figure 19 is a schematic diagram of a cross-sectional structure along the D2-D2' direction in Figure 8;

[0038] Figure 20 is a schematic diagram of a cross-sectional structure along the E1-E1' direction in Figure 15;

[0039] Figure 21 is a schematic diagram of a cross-sectional structure along the E2-E2' direction in Figure 17;

[0040] Figure 22 is a schematic diagram of a cross-sectional structure of F1-F1' in Figure 12;

[0041] Figure 23 is a schematic diagram of a cross-sectional structure of F2-F2' in Figure 12;

[0042] Figure 24 is a schematic diagram of another planar structure of the display panel provided in an embodiment of this application;

[0043] Figure 25 is a schematic diagram of another planar structure of the display panel provided in an embodiment of this application;

[0044] Figure 26 is a schematic diagram of another planar structure of the display panel provided in an embodiment of this application;

[0045] Figure 27 is a schematic diagram of a planar structure of a display device provided in an embodiment of this application. Detailed Implementation

[0046] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0047] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0048] Please refer to Figures 1 and 2. Figure 1 is a planar structural schematic diagram of a display panel provided in an embodiment of this application, and Figure 2 is a cross-sectional structural schematic diagram along line A-A' in Figure 1. The display panel 000 provided in this embodiment includes:

[0049] Substrate 10;

[0050] The driving array layer 20 is located on one side of the substrate 10;

[0051] Multiple bonding electrodes 30 are located on the side of the driving array layer 20 away from the substrate 10;

[0052] The light-emitting device 40 is located on the side of the bonding electrode 30 away from the substrate 10, and the light-emitting device 40 is electrically connected to the driving array layer 20 through the bonding electrode 30.

[0053] Touch electrode layer 50, touch electrode layer 50 is electrically connected to touch electrode connection line 60;

[0054] In the direction Z perpendicular to the plane of the substrate 10, the touch electrode layer 50 is located on the side of the bonding electrode 30 away from the substrate 10, and the touch electrode connection line 60 is located on the side of the bonding electrode 30 close to the substrate 10.

[0055] Specifically, the display panel 000 provided in this embodiment can be a sub-millimeter light-emitting diode (mini LED) or micro light-emitting diode (micro LED) display panel. The film structure of the display panel 000 includes a substrate 10, which can be used as a carrier substrate of the display panel 000 for fabricating and setting other structures of the display panel 000 on the substrate 10, such as the film structure used in this embodiment for fabricating the driving array layer 20, bonding electrode 30 and light-emitting device 40 located on one side of the substrate 10. It is understood that the driving array layer 20 in this embodiment may include a structure of multiple conductive film layers and multiple insulating layers. The driving array layer 20 can be understood as a film layer for fabricating the driving circuit structure for driving the light-emitting device 40 to emit light, as shown in Figure 2. The driving array layer 20 can fabricate circuit structures such as thin-film transistors 20T for driving the light-emitting device 40 to emit light. The source or drain of the thin-film transistor 20T can be electrically connected to the anode pin 401 of the light-emitting device 40 through the bonding electrode 30, and the cathode pin 402 of the light-emitting device 40 can be electrically connected to the cathode signal line (not shown in the figure) in the display panel 000 through the bonding electrode 30. The driving array layer 20 may also include multiple conductive signal lines (such as scan signal lines, data signal lines, power signal lines, etc.) to transmit driving signals to each light-emitting device 40 and drive the light-emitting device 40 to achieve normal light emission display effect.

[0056] In this embodiment, the light-emitting device 40 can be a micro LED or mini LED, etc. In specific implementation, the light-emitting device 40 can be transferred to a substrate on which the driving array layer 20 and other film layers have been fabricated through mass transfer technology, so that the anode pin 401 and cathode pin 402 of the light-emitting device 40 are electrically connected to the bonding electrode 30 on the substrate, thereby realizing the driving circuit structure of the driving array layer 20 to drive the light-emitting device 40 to emit light and realize the display function.

[0057] Optionally, the packaging form of the light-emitting device 40 in the display panel 000 of this embodiment can be a horizontal light-emitting chip. In specific implementation, the packaging form of the light-emitting device 40 can also be a vertical light-emitting chip. This embodiment does not limit this.

[0058] Optionally, a conductive structure such as solder or a eutectic layer (not shown in the figure) can be provided between the bonding electrode 30 and the anode pin 401 and cathode pin 402 of the light-emitting device 40. When the light-emitting device 40 is transferred, a micro-stamp can be used to align the cathode pin 402 and anode pin 401 of the light-emitting device 40 with the bonding electrode 30 on the display substrate. By pressing down on the micro-stamp, the conductive structure such as solder or eutectic layer is pressed, thereby achieving a bonding electrical connection between the light-emitting device 40 and the bonding electrode 30. It is understood that the eutectic layer can be made of a high-melting-point eutectic material, such as a eutectic material of solder and silver or gold.

[0059] The display panel 000 of this embodiment includes a plurality of light-emitting devices 40. The area where at least one light-emitting device 40 is located can be understood as a pixel area divided by the display panel 000. It should be understood that Figure 1 of this embodiment is only an example of the array arrangement of a plurality of light-emitting devices 40. In specific implementation, the arrangement of a plurality of light-emitting devices 40 in the display panel 000 includes, but is not limited to, this.

[0060] The display panel 000 in this embodiment further includes a touch electrode layer 50, which is electrically connected to a touch electrode connection line 60. The touch electrode connection line 60 is used to provide or receive touch signals from the touch electrode layer 50, thereby realizing the touch performance of the display panel 000. It is understood that the specific details of the arrangement structure of the touch electrode layer 50 and the touch electrode connection line 60 are not described in detail in this embodiment; please refer to subsequent embodiments for further understanding.

[0061] In related technologies, to achieve touch functionality, a conductive metal layer is required to extract the touch signals from the touch electrode layer. However, if the touch electrodes are placed on the film layer containing the bonding electrodes, the touch signals are easily affected by the light-emitting signals from the light-emitting devices, hindering touch accuracy. Furthermore, in these technologies, the touch electrodes are placed on the film layer containing the bonding electrodes, and then an additional metal layer is used to extract the touch signals. This additional metal layer needs to both extract the touch signals and act as a conductive structure, such as power lines, required for driving the panel itself. Therefore, when using an additional metal layer to extract touch signals, the area occupied by this metal layer is very limited. Moreover, since the metal layer is opaque, if it not only forms the conductive structure needed to drive the panel itself but also acts as the touch electrode connection line for extracting touch signals, the area of ​​the opaque circuitry in the metal layer will increase. Conversely, if the area of ​​the conductive structure required for driving the panel itself, such as the power lines, is reduced to make room for the touch electrode connection lines, the power line area will be too small, resulting in excessive IR-Drop, which is detrimental to display quality. Furthermore, the related technologies involve setting the touch electrode on the film layer where the bonding electrode is located, and then extracting the touch signal of the touch electrode through an additional metal layer, which is a complex process and costly.

[0062] To address the aforementioned issues, this embodiment places the touch electrode layer 50 on the side of the bonding electrode 30 away from the substrate 10, perpendicular to the plane of the substrate 10, while the touch electrode connecting line 60 is located on the side of the bonding electrode 30 closer to the substrate 10. Specifically, on the Z-direction perpendicular to the plane of the substrate 10, with the location of the bonding electrode 30 as a reference, the touch electrode connecting line 60 is located below the bonding electrode 30, and the touch electrode layer 50 is located above the bonding electrode 30. In related technologies, when touch detection is performed between touch electrodes, the lateral detection electric field is easily interrupted by the light-emitting device bonded to the bonding electrode. Therefore, the invisible lateral electric field generated between the touch electrodes is easily affected by the light-emitting device, impacting the touch performance of the display panel and hindering the improvement of touch accuracy.

[0063] In this embodiment, the touch electrode layer 50, which enables touch functionality, is disposed on the side of the bonding electrode 30 away from the substrate 10, while the touch electrode connecting line 60, which is electrically connected to the touch electrode layer 50, is disposed on the side of the bonding electrode 30 closer to the substrate 10, such as in at least one conductive film layer of the driving array layer 20. The electrical signal driving the light-emitting device 40 to emit light is mainly transmitted to the bonding electrode 30 through the driving array layer 20, thereby controlling the light-emitting device 40 to emit light. Therefore, the touch electrode layer 50 is higher than the bonding electrode 30 used to transmit the driving light-emitting signal, which can minimize the influence of the light-emitting electrical signal of the light-emitting device 40 on the transverse electric field between different touch electrodes when the touch electrode layer 50 performs touch detection. That is, the touch detection is as unaffected as possible by the light-emitting electrical signal, which is beneficial to achieve normal light-emitting display of the display panel 000 while improving touch performance.

[0064] It should be noted that the diagram in this embodiment is only an example of the structure of the display panel. In actual implementation, the structure of the display panel includes, but is not limited to, this. It may also include other structures that can realize the display function. For details, please refer to the structure of mini LED or micro LED display panels in related technologies. This embodiment will not elaborate on it here.

[0065] Optionally, please continue to refer to Figures 1 and 2. In this embodiment, in the direction Z perpendicular to the plane where the substrate 10 is located, the distance H1 from the touch electrode layer 50 to the substrate 10 is greater than the distance H2 from the bonding electrode 30 to the substrate 10, and the distance H2 from the bonding electrode 30 to the substrate 10 is greater than the distance H3 from the touch electrode connecting line 60 to the substrate 10.

[0066] In this embodiment, the touch electrode layer 50 that implements the touch function is disposed on the side of the bonding electrode 30 away from the substrate 10, while the touch electrode connecting line 60 that is electrically connected to the touch electrode layer 50 is disposed on the side of the bonding electrode 30 close to the substrate 10. The touch electrode connecting line 60 can be disposed in a certain conductive film layer of the driving array layer 20 between the substrate 10 and the bonding electrode 30, and is used to provide touch driving signals to the touch electrode layer 50. In the direction Z perpendicular to the plane of the substrate 10, the distances between the touch electrode layer 50, the bonding electrode 30, and the touch electrode connecting line 60 and the substrate 10 are as follows: the distance H1 from the touch electrode layer 50 to the substrate 10 is greater than the distance H2 from the bonding electrode 30 to the substrate 10, and the distance H2 from the bonding electrode 30 to the substrate 10 is greater than the distance H3 from the touch electrode connecting line 60 to the substrate 10. This ensures that the touch electrode layer 50 is on the side of the bonding electrode 30 away from the substrate 10, while the touch electrode connecting line 60 electrically connected to the touch electrode layer 50 is on the side of the bonding electrode 30 closer to the substrate 10. This avoids the transverse electric field between the touch detection signals of the touch electrode layer 50 being affected by the light emission signal of the light-emitting device 40, which is beneficial to improving touch performance. Furthermore, this embodiment also provides that the touch electrode connection line 60 electrically connected to the touch electrode layer 50 is located on the side of the bonding electrode 30 near the substrate 10. Since the side of the bonding electrode 30 near the substrate 10 generally has multiple metal conductive layers, such as multiple metal conductive layers in the driving array layer 20, all of which can be used to make the touch electrode connection line 60 to bring out the touch signal of the touch electrode layer 50, the conductive film layer that can be used for the touch electrode connection line 60 can be as many as possible. That is, there are more choices for the film layer where the touch electrode connection line 60 is located. This is beneficial to avoid the setting of the touch electrode connection line 60 affecting the structure of the film layer of the panel itself. For example, the metal conductive film layer that needs to be set in a large area to avoid excessive IR-Drop, such as power lines, can be left without the touch electrode connection line 60. Instead, one or more other metal conductive film layers with more space on the side of the bonding electrode 30 near the substrate 10 can be selected to bring out the touch electrode connection line 60.

[0067] In this embodiment, the touch electrode layer 50, which enables touch functionality, is located on the side of the bonding electrode 30 furthest from the substrate 10, while the touch electrode connecting line 60, which electrically connects to the touch electrode layer 50, is located on the side of the bonding electrode 30 closest to the substrate 10. This arrangement ensures that the touch electrode layer 50 is higher than the bonding electrode 30, thus improving touch performance, while also preventing the placement of the touch electrode connecting line 60 from affecting other layout structures required for driving the panel itself, thereby ensuring display quality. Furthermore, if the display panel 000 in this embodiment is a transparent display panel, the touch electrode connecting line 60 can be selectively placed in multiple film layers on the side of the bonding electrode 30 closest to the substrate 10 to minimize the area of ​​the circuit-blocked region of the metal layer, further enhancing the transparent display effect. It is understood that the distances H1 from the touch electrode layer 50 to the substrate 10, H2 from the bonding electrode 30 to the substrate 10, and H3 from the touch electrode connecting line 60 to the substrate 10 in this embodiment are all illustrated as the distance between the surface of the structure away from the substrate 10 and the upper surface of the substrate 10. In specific implementation, the distance of a certain structure to the substrate 10 can also be understood as the distance between the surface of the structure facing the substrate 10 and the lower surface of the substrate 10. This embodiment does not limit this.

[0068] In some alternative embodiments, please refer to Figures 1 and 3. Figure 3 is a schematic diagram of another cross-sectional structure along A-A' in Figure 1. In this embodiment, along the direction Z perpendicular to the plane where the substrate 10 is located, the distance from the surface of the touch electrode layer 50 facing the substrate 10 to the substrate 10 is the first distance H4, and the distance from the surface of the light-emitting device 40 away from the substrate 10 to the substrate 10 is the second distance H5; wherein, the first distance H4 is greater than or equal to the second distance H5.

[0069] This embodiment explains that when the touch electrode layer 50, which implements the touch function, is disposed on the side of the bonding electrode 30 away from the substrate 10, and the touch electrode connecting line 60, which is electrically connected to the touch electrode layer 50, is disposed on the side of the bonding electrode 30 close to the substrate 10, the height of the touch electrode layer 50 needs to satisfy the following: along the direction Z perpendicular to the plane of the substrate 10, the distance from the surface of the touch electrode layer 50 facing the substrate 10 to the substrate 10 is a first distance H4, and the distance from the surface of the light-emitting device 40 away from the substrate 10 to the substrate 10 is a second distance H5; wherein, the first distance H4 is greater than or equal to the second distance H5. The first distance H4 being greater than or equal to the second distance H5 ensures that the touch electrode layer 50 is higher than the light-emitting device 40, effectively ensuring that the transverse electric field between the touch detection signals of the touch electrode layer 50 is not affected by the light-emitting electrical signal of the light-emitting device 40, thus improving touch performance. Optionally, the first distance H4 is equal to the second distance H5, that is, the lower surface of the touch electrode layer 50 is flush with the upper surface of the light-emitting device 40. This can avoid unevenness on the light-emitting side (the side of the light-emitting device 40 away from the substrate 10) of the subsequent encapsulation panel, which would affect the propagation of the light path of the light-emitting device 40 and help improve the display quality.

[0070] In some alternative embodiments, please continue to refer to Figures 1-3. In this embodiment, the display panel 000 further includes a raised portion 70 (not filled in Figures 2 and 3). In the direction Z perpendicular to the plane of the substrate 10, the raised portion 70 is located between the touch electrode layer 50 and the bonding electrode 30, and the raised portion 70 does not overlap with the light-emitting device 40.

[0071] This embodiment explains that, in order to achieve the following in the direction Z perpendicular to the plane of the substrate 10, the touch electrode layer 50 is located on the side of the bonding electrode 30 away from the substrate 10, and the touch electrode connecting line 60 is located on the side of the bonding electrode 30 close to the substrate 10. Specifically, in the direction Z perpendicular to the plane of the substrate 10, with the location of the bonding electrode 30 as a reference, the touch electrode connecting line 60 is below the bonding electrode 30, and the touch electrode layer 50 is above the bonding electrode 30. A raised portion 70 can be provided between the touch electrode layer 50 and the bonding electrode 30 to elevate the touch electrode layer 50. Since the raised portion 70 does not overlap with the light-emitting device 40 in the direction Z perpendicular to the plane of the substrate 10, the placement of the raised portion 70 can be avoided from affecting the bonding electrical connection effect between the light-emitting device 40 and the bonding electrode 30. In this embodiment, the raised portion 70 elevates the touch electrode layer 50. Optionally, the lower surface of the touch electrode layer 50 is not lower than the upper surface of the light-emitting device 40. The lateral electric field of different touch electrodes in the touch electrode layer 50 during touch detection will not be interfered with by the electrical signal of the light-emitting device 40, thereby effectively improving touch performance. Furthermore, since the lower surface of the touch electrode layer 50 is not lower than the upper surface of the light-emitting device 40, the touch electrode layer 50 can be closer to the touch subject (such as a finger or stylus) when the display panel 000 performs touch detection, which can reduce the vertical distance between the touch electrode layer 50 and the touch subject, thereby effectively improving touch accuracy.

[0072] It is understood that the raised portion 70 in this embodiment can be made of an organic film. The raised portion 70 of the organic film material not only serves to raise the subsequently fabricated touch electrode layer 50, but also serves to protect and planarize the surface of the driving array layer 20, which is beneficial for subsequent encapsulation. When manufacturing the display panel 000, after the bonding electrode 30 is fabricated, the light-emitting device 40 can be transferred using a giant transfer bonding process, and then the raised portion 70 can be fabricated to ensure that the subsequently fabricated touch electrode layer 50 is located on the side of the bonding electrode 30 away from the substrate 10, and the fabrication is more convenient. Alternatively, in some other optional processes, after the bonding electrode 30 is fabricated, a raised layer can be fabricated and then patterned to form the raised portion 70 between the bonding electrodes 30, so that the gap between the raised portions 70 can expose the space of the light-emitting device 40, and then the touch electrode layer 50 can be fabricated, or the light-emitting device 40 can be transferred using a giant transfer bonding process. This embodiment does not limit the process technology; in specific implementation, the fabrication can be selected according to actual needs.

[0073] Optionally, the organic film used in the raised portion 70 in this embodiment can be a transparent organic film, thereby enabling the display panel 000 in this embodiment to be a transparent display panel. Since the material used to make the touch electrode layer 50 is generally a transparent conductive material, the area where the touch electrode layer 50 is located can be understood as the light-transmitting area of ​​the transparent display panel, and the area where the light-emitting device 40 is located can be understood as the light-emitting area of ​​the transparent display panel, thereby achieving the display effect of the transparent display panel.

[0074] Optionally, as shown in Figures 4 and 5, Figure 4 is a schematic diagram of another planar structure of the display panel provided in this application embodiment, and Figure 5 is a schematic diagram of a cross-sectional structure along the B-B' direction in Figure 4. The touch electrode layer 50 of this embodiment includes a plurality of touch electrode blocks 501. In the direction Z perpendicular to the plane where the substrate 10 is located, the touch electrode blocks 501 correspond one-to-one with the raised portions 70. There is a gap 70K between the raised portions 70 corresponding to two adjacent touch electrode blocks 501. The orthogonal projection of the touch electrode blocks 501 on the substrate 10 is located within the orthogonal projection range of the raised portions 70 on the substrate 10.

[0075] This embodiment explains that the padding portion 70 used to elevate the touch electrode layer 50 can be in pieces. If the touch electrode layer 50 includes N touch electrode blocks 501, then the padding portion 70 also includes N pieces. There is a gap 70K between the padding portions 70 corresponding to two adjacent touch electrode blocks 501, forming a one-to-one correspondence between the touch electrode blocks 501 and the padding portion 70. This ensures that each touch electrode block 501 is elevated by the padding portion 70, thereby ensuring that the touch electrode blocks 501 of the touch electrode layer 50 above the padding portion 70 are higher than the bonding electrode 30, and the touch detection signal is as unaffected as possible by the electrical signal of the light-emitting device 40.

[0076] Optionally, in this embodiment, the thickness of the raised portion 70 adjacent to the different colored light-emitting devices 40 can be different. Since the different colored light-emitting devices 40 have different heights in the direction Z perpendicular to the plane of the substrate 10 due to differences in their manufacturing processes, the raised portions 70 can be fabricated independently. The raised portions 70 corresponding to the taller light-emitting devices 70 in the direction Z perpendicular to the plane of the substrate 10 can be thicker, while the raised portions 70 corresponding to the shorter light-emitting devices 70 can be thinner. This ensures that the touch electrode block 501 of the touch electrode layer 50 above the raised portion 70 is higher than the bonding electrode 30, and the touch detection signal is not affected by the electrical signal of the light-emitting device 40.

[0077] It is understood that this embodiment does not limit the area of ​​the raised portion 70. It only needs to satisfy that the orthographic projection of the touch electrode block 501 on the substrate 10 is within the orthographic projection range of the raised portion 70 on the substrate 10, that is, the touch electrode block 501 and the raised portion 70 correspond one-to-one. The area of ​​the raised portion 70 is slightly larger than or equal to that of the touch electrode block 501, and can support the touch electrode block 501.

[0078] In some alternative embodiments, please refer to Figures 6 and 7. Figure 6 is a schematic diagram of another planar structure of the display panel provided in the embodiment of this application, and Figure 7 is a schematic diagram of a cross-sectional structure along C-C' in Figure 6. The touch electrode layer 50 of this embodiment includes a plurality of touch electrode blocks 501. In the direction Z perpendicular to the plane of the substrate 10, a raised portion 70 corresponds to at least two different touch electrode blocks 501.

[0079] This embodiment explains that if the touch electrode layer 50 includes N touch electrode blocks 501, then in the direction Z perpendicular to the plane of the substrate 10, one raised portion 70 corresponds to at least two, that is, the raised portion 70 can be completely filled between adjacent light-emitting devices 40, which can ensure that the touch electrode blocks 501 of the touch electrode layer 50 above the raised portion 70 are higher than the bonding electrode 30, thereby improving process efficiency and also allowing the entire raised portion 70 to protect the light-emitting device 70.

[0080] It is understood that when the raised portion 70 in this embodiment is a whole layer filling between adjacent light-emitting devices 40, the manufacturing process of the raised portion 70 can be carried out after the light-emitting devices 40 are bonded and electrically connected to the bonding electrodes 30, making the process more convenient. The raised portion 70 is entirely filled between adjacent light-emitting devices 40. The raised portion 70 can be made of organic film material. The raised portion 70 made of organic film material can not only raise the subsequently manufactured touch electrode layer 50, but also protect and planarize the surface of the driving array layer 20, which is beneficial for subsequent encapsulation.

[0081] It is understood that when the raised portion 70 in this embodiment is a whole layer filling between adjacent light-emitting devices 40, the material of the raised portion 70 can be a transparent organic film material, thereby avoiding the filling of the raised portion 70 from affecting the light-emitting effect of the light-emitting device 40.

[0082] It should be noted that in this embodiment, the touch electrode layer 50 includes a plurality of touch electrode blocks 501. A touch electrode block 501 can be understood as an electrode block that provides a driving signal, or as an electrode block that receives a sensing signal, or as one of the electrode blocks in a touch unit that provides a driving signal, or as one of the electrode blocks in a touch unit that receives a sensing signal. This embodiment does not limit this.

[0083] In some alternative embodiments, please refer to Figures 8 and 9. Figure 8 is a schematic diagram of another planar structure of the display panel provided in the embodiment of this application, and Figure 9 is a schematic diagram of the connection structure of the touch electrode layer and the touch electrode connecting line in a part of Figure 8. In this embodiment, the touch electrode layer 50 includes a plurality of touch units 50A, and the touch electrode connecting line 60 includes touch unit connecting line 60A.

[0084] Along a direction parallel to the plane of substrate 10, two adjacent touch units 50A are electrically connected through touch unit connection line 60A.

[0085] This embodiment explains that when the touch electrode layer 50 is used to fabricate a structure that realizes the touch detection function, the touch electrode layer 50 can be configured to include multiple touch units 50A. The touch electrode connection line 60 corresponding to the touch unit 50A is the touch unit connection line 60A. The touch unit connection line 60A is used to electrically connect adjacent touch units 50A in a direction parallel to the plane of the substrate 10.

[0086] Optionally, as shown in Figures 8 and 9, the touch electrode layer 50 may include multiple touch units 50A for receiving touch sensing signals and multiple touch transmitting units 50A2 for transmitting touch driving signals. It is understood that, in order to clearly illustrate the structure of this embodiment, the receiving touch units 50A1 and the touch transmitting units 50A2 are distinguished by different filling patterns in Figures 8 and 9.

[0087] Multiple receiving touch units 50A1 are arranged along the first direction X to form receiving unit row 50A1H, and multiple receiving unit rows 50A1H are arranged sequentially along the second direction Y.

[0088] Multiple emitting touch units 50A2 are arranged along the second direction Y to form an emitting unit column 50A2L, and multiple emitting unit columns 50A2L are arranged sequentially along the first direction X; wherein, the first direction X and the second direction Y intersect in a direction parallel to the plane where the substrate 10 is located; it can be understood that this embodiment takes the example of the first direction X and the second direction Y being perpendicular to each other in a direction parallel to the plane where the substrate 10 is located for illustration.

[0089] The touch unit connection line 60A includes a first connection line 60A1 and a second connection line 60A2. Along the first direction X, two adjacent receiving touch units 50A1 are electrically connected through the first connection line 60A1; along the second direction Y, two adjacent transmitting touch units 50A2 are electrically connected through the second connection line 60A2.

[0090] This embodiment explains that the touch units 50A of the touch electrode layer 50 can be arranged as follows: multiple receiving touch units 50A1 are arranged along the first direction X to form a receiving unit row 50A1H, and multiple transmitting touch units 50A2 are arranged along the second direction Y to form a transmitting unit column 50A2L. The multiple receiving unit rows 50A1H are arranged sequentially along the second direction Y, and the multiple transmitting unit columns 50A2L are arranged sequentially along the first direction X. The receiving unit rows 50A1H and the transmitting unit columns 50A2L intersect and are mutually insulated. During touch detection... The touch drive signal is input to multiple transmitting touch units 50A2 in the transmitting unit column 50A2L through the second connecting line 60A2, and the touch sensing signal of multiple receiving touch units 50A1 in the receiving unit row 50A1H is received and detected through the first connecting line 60A1. When the touch subject touches the display panel 000, the sensing signal on the receiving touch unit 50A1 at the touch position changes. The touch position can be determined according to the touch sensing signal received and detected by the first connecting line 60A1, thus realizing the touch detection effect.

[0091] It is understood that in Figure 8 of this embodiment, the overall shape of the multiple receiving touch units 50A1 (a dashed box represents a receiving touch unit 50A1) and multiple transmitting touch units 50A2 (a dashed box represents a transmitting touch unit 50A2) included in the multiple touch units 50A are all rhomboids for illustrative purposes. In actual implementation, the overall shape of a single touch unit 50A can be other shapes, such as a square, etc., and this embodiment does not limit this. The overall shape of a single touch unit 50A mentioned in this embodiment can be understood as the shape of the orthographic projection of a single touch unit 50A onto the plane where the substrate 10 is located, and this overall shape can be represented as the shape formed by the approximate outer contour of the orthographic projection of a single touch unit 50A onto the plane where the substrate 10 is located, and does not mean that the overall shape of a single touch unit 50A is a standard rhomboid.

[0092] In this embodiment, the outer contour of the orthographic projection of a single touch unit 50A onto the plane of the substrate 10 is approximately rhomboid. This allows the edge of the receiving touch unit 50A1 to be as close as possible to the edge of the transmitting touch unit 50A2, and the distance between them can be smaller, which can improve the touch detection accuracy.

[0093] Optionally, in this embodiment, the first connecting line 60A1 and the second connecting line 60A2 are arranged in different layers (the first connecting line 60A1 and the second connecting line 60A2 are distinguished by different thicknesses in Figure 8). This allows the first connecting line 60A1 to be electrically connected to the receiving unit row 50A1H formed by the receiving touch unit 50A1 and the second connecting line 60A2 to be electrically connected to the transmitting unit column 50A2L formed by the transmitting touch unit 50A2 to intersect and be mutually insulated, thereby avoiding mutual interference between the touch sensing signal and the touch driving signal and improving the touch performance.

[0094] Optionally, as shown in Figures 8 and 9, the touch unit 50A in this embodiment includes n2+(n+1)2 touch electrode blocks 501, where n is a positive integer; the touch electrode connecting line 60 also includes touch electrode block connecting line 60B;

[0095] Along a direction parallel to the plane of the substrate 10, two adjacent touch electrode blocks 501 in the touch unit 50A are electrically connected through touch electrode block connection line 60B.

[0096] This embodiment explains that a single touch unit 50A may include multiple electrically connected touch electrode blocks 501. Through the arrangement of these multiple touch electrode blocks 501, the approximate outer contour of the orthographic projection of the single touch unit 50A onto the plane of the substrate 10 is formed into a rhombus shape. As shown in Figures 8 and 9, the touch unit 50A in this embodiment includes n² + (n + 1)² touch electrode blocks 501. When n is a positive integer 1, the touch unit 50A includes five touch electrode blocks 501. By dividing the five touch electrode blocks 501 into multiple rows and columns (as shown in Figures 8 and 9, with 3 rows and 3 columns, and the middle row having 3 touch electrode blocks 501, the two side rows having 1 touch electrode block 501, the middle column having 3 touch electrode blocks 501, and the two side columns having 1 touch electrode block 501), the shape of the single touch unit 50A formed by the five touch electrode blocks 501 is cross-shaped. The touch unit 50A itself has a very small area, and under microscopic view, the overall shape of the single touch unit 50A is rhomboid.

[0097] It is understood that the touch unit 50A shown in Figures 8 and 9 includes n² + (n + 1)² touch electrode blocks 501, where n is a positive integer of 1. In some other optional embodiments, the touch unit 50A includes n² + (n + 1)² touch electrode blocks 501, and n can also be other positive integers. As shown in Figures 10 and 11, Figure 10 is a schematic diagram of another planar structure of the display panel provided in this application embodiment, and Figure 11 is a schematic diagram of the connection structure of the touch electrode layer and the touch electrode connecting lines in a part of Figure 10. In this embodiment, the touch unit 50A includes n² + (n + 1)² touch electrode blocks 501. When n is a positive integer of 2, the touch unit 50A includes thirteen touch electrode blocks 501, which are divided into multiple rows and columns (as shown in Figure 10). The 5 rows and 5 columns in Figures 10 and 11, with 5 touch electrode blocks 501 in the middle row, 3 touch electrode blocks 501 in each of the two side rows, and 1 touch electrode block 501 in each of the two outermost rows, and 5 touch electrode blocks 501 in the middle column, 3 touch electrode blocks 501 in each of the two side columns, and 1 touch electrode block 501 in each of the two outermost columns, make the shape of a single touch unit 50A composed of thirteen touch electrode blocks 501 cross-shaped. Since the area of ​​the touch unit 50A itself is very small, the overall shape of the single touch unit 50A is achieved as a rhombus in the microscopic view.

[0098] As described above, in this embodiment, the touch unit 50A includes n² + (n+1)² touch electrode blocks 501, where n is a positive integer. To ensure that the shape of a single touch unit 50A is rhomboid in a microscopic view, the touch unit 50A, including n² + (n+1)² touch electrode blocks 501, can be arranged in a multi-row, multi-column cross shape. Regardless of the value of n, it satisfies that along the second direction Y, the touch unit 50A includes multiple rows 501H of touch electrode blocks, and the (n+1)th row 501H includes (2n+1) touch electrode blocks 501. As shown in Figure 12, which is a schematic diagram of the touch unit structure in Figure 8, n is 1. In a touch unit 50A composed of five touch electrode blocks 501, along the second direction Y, the touch unit 50A includes three rows of touch electrode blocks 501H, and the second row of touch electrode blocks 501H includes three touch electrode blocks 501; and / or, along the first direction X, the touch unit 50A includes multiple columns of touch electrode blocks 501L, and the (n+1)th column of touch electrode blocks 501L includes (2n+1) touch electrode blocks 501; if n is 1, then in a touch unit 50A composed of five touch electrode blocks 501, along the first direction X, the touch unit 50A includes three columns of touch electrode blocks 501L, and the second column of touch electrode blocks 501L includes three touch electrode blocks 501. The first direction X and the second direction Y intersect in a direction parallel to the plane of the substrate 10. This embodiment uses the example of the first direction X and the second direction Y being perpendicular to each other in a direction parallel to the plane of the substrate 10 for illustration.

[0099] Optionally, in this embodiment, the touch unit 50A includes n² + (n+1)² touch electrode blocks 501, where n is a positive integer. To make the shape of a single touch unit 50A appear rhomboid in a microscopic view, the touch unit 50A can be arranged in a multi-row, multi-column cross shape with n² + (n+1)² touch electrode blocks 501. Regardless of the value of n, it satisfies that in the second direction Y, the number of touch electrode blocks 501 in the (n+1)th row 50H of a touch unit 40A is greater than the number of touch electrode blocks 501 in other rows. As shown in Figure 12, if n is 1, then in a touch unit 50A composed of five touch electrode blocks 501, along the second direction Y, the touch unit 50A includes three... There are three touch electrode block rows 501H, the second touch electrode block row 501H includes three touch electrode blocks 501, and the remaining touch electrode block rows 501H each include one touch electrode block 501; and / or, in the first direction X, in a touch unit 50A, the (n+1)th touch electrode block column 501L includes more touch electrode blocks 501 than the other touch electrode block columns 501L include; if n is 1, then in a touch unit 50A composed of five touch electrode blocks 501, along the first direction X, the touch unit 50A includes three touch electrode block columns 501L, the second touch electrode block column 501L includes three touch electrode blocks 501, and the remaining touch electrode block columns 501L each include one touch electrode block 501. Alternatively, as shown in Figure 13, which is a structural schematic diagram of the touch unit in Figure 10, the above arrangement structure is also satisfied when n is 2, and will not be described in detail here. The arrangement of the touch electrode blocks 501 in the above touch unit 50A is also applicable when n takes other positive integers, so as to satisfy the effect that the shape of a single touch unit 50A is rhomboid in the microscopic view.

[0100] Please refer to Figures 8-13. In this embodiment, the touch unit 50A includes n2+(n+1)2 touch electrode blocks 501. That is, when a single touch unit 50A includes multiple touch electrode blocks 501, the touch electrode connection line 60 also includes a touch electrode block connection line 60B. The touch electrode block connection line 60B is used to electrically connect the touch electrode blocks 501 in the same touch unit 50A. As shown in Figures 12 and 13, along the direction parallel to the plane of the substrate 10, two adjacent touch electrode blocks 501 in the touch unit 50A are electrically connected through the touch electrode block connection line 60B, thereby realizing that different touch electrode blocks 501 in the same touch unit 50A are all electrically connected to the same touch signal.

[0101] In some alternative embodiments, please continue to refer to Figures 1-3 and 8-13. In this embodiment, the touch electrode layer 50 further includes a plurality of floating touch units 50B.

[0102] Along a direction parallel to the plane of the substrate 10, at least one floating touch unit 50B is included between two adjacent touch units 50A (Figures 8 and 10 illustrate this by taking one floating touch unit 50B between two adjacent touch units 50A as an example); optionally, a single floating touch unit 50B includes at least one floating touch electrode block 50B1 or only one floating touch electrode block 50B1, which can make the distance between adjacent touch units 50A closer and meet the requirements of touch detection performance.

[0103] In this embodiment, the touch unit connection line 60A and the floating touch unit 50B are at least partially overlapped along the direction Z perpendicular to the plane of the substrate 10. It should be noted that, in order to clearly illustrate the overlapping structure of the touch unit connection line 60A and the floating touch unit 50B, some areas in Figures 8-11 have been filled with transparency.

[0104] This embodiment explains that, along a direction parallel to the plane of the substrate 10, at least one floating touch unit 50B is included between two adjacent touch units 50A. The floating touch unit 50B can be understood as a touch unit that is not electrically connected to any touch signal; that is, the floating touch unit 50B does not receive any electrical signal. When two adjacent touch units 50A are electrically connected via touch unit connection lines 60A along a direction parallel to the plane of the substrate 10, for example, along the first direction X, two adjacent receiving touch units 50A1 are electrically connected via the first connection line 60A1 included in the touch unit connection line 60A; along the second direction Y, two adjacent transmitting touch units 50A2 are electrically connected via the second connection line 60A2 included in the touch unit connection line 60A; and along the direction Z perpendicular to the plane of the substrate 10, the touch unit connection line 60A and the floating touch unit 50B at least partially overlap. Since the floating touch unit 50A... The floating touch electrode block 50B1 included in 0B is located on the touch electrode layer 50, while the touch unit connection line 60A is located on the driving array layer 20 below the bonding electrode 30. That is, the touch unit connection line 60A and the floating touch unit 50B are on different layers. Therefore, the touch unit connection line 60A and the floating touch unit 50B can be arranged to overlap at least partially in the direction Z perpendicular to the plane where the substrate 10 is located. That is, the touch unit connection line 60A is directly routed below the floating touch unit 50B, which can avoid the winding of the touch unit connection line 60A, which is beneficial to reduce the wiring difficulty of the signal lines in the panel and improve the process efficiency.

[0105] In some alternative embodiments, please refer to Figures 14 and 15. Figure 14 is a schematic diagram of another planar structure of the display panel provided in an embodiment of this application, and Figure 15 is a schematic diagram of the connection structure of the touch electrode layer and the touch electrode connecting line in a portion of Figure 14. In this embodiment, the first connecting line 60A1 includes a first sub-segment 60A11, a second sub-segment 60A12, and a third sub-segment 60A13. The second sub-segment 60A12 is on a different layer from the first sub-segment 60A11 and the third sub-segment 60A13. Along the direction Z perpendicular to the plane of the substrate 10, the second sub-segment 60A12 at least partially overlaps with the floating touch unit 50B; or...

[0106] The second connection line 60A2 includes a fourth sub-segment 60A21, a fifth sub-segment 60A22 and a sixth sub-segment 60A23. The fifth sub-segment 60A22 is on a different layer from the fourth sub-segment 60A21 and the sixth sub-segment 60A23. Along the direction Z perpendicular to the plane of the substrate 10, the fifth sub-segment 60A22 at least partially overlaps with the floating touch unit 50B.

[0107] This embodiment explains that when at least one floating touch unit 50B is included between two adjacent touch units 50A along a direction parallel to the plane of the substrate 10, any conductive film layer below the floating touch unit 50B can be used as the electrical connection structure between the two adjacent touch units 50A. Specifically, as shown in Figures 14 and 15, along the first direction X, two adjacent receiving touch units 50A1 are electrically connected through a first connecting line 60A1, and along the second direction Y, two adjacent transmitting touch units 50A2 are electrically connected through a second connecting line 60A2. The first connecting line 60A1 includes a first sub-segment 60A11, a second sub-segment 60A12, and a third sub-segment 60A13. The second sub-segment 60A12 is on a different layer from the first sub-segment 60A11 and the third sub-segment 60A13. The second sub-segment 60A12 can be connected to a different film layer than the first sub-segment 60A11 and the third sub-segment 60A13 through a via. Along the direction Z perpendicular to the plane of the substrate 10, the second sub-segment 60A12 at least partially overlaps with the floating touch unit 50B, i.e., it is located between the bonding electrode 30 and the substrate 10. The first connecting line 60A1 can be disposed in multiple conductive film layers in the driving array layer 20. In order to achieve the connection between adjacent units 50A1 in the first direction X, the first connecting line 60A1 can be disposed in multiple conductive film layers in the driving array layer 20. The electrical connection of each receiving touch unit 50A1 can be achieved by leading out a first segment 60A11 of the first connecting line 60A1 located in the driving array layer 20, then connecting it through a via to another conductive film layer in the driving array layer 20 to form a second segment 60A12, and then connecting the second segment 60A12 to a third segment 60A13 located in the same layer as the first segment 60A11, and then connecting another receiving touch unit 50A1 to it. That is, the electrical connection structure of two adjacent receiving touch units 50A1 in the first direction X includes at least three segments in the first connecting line 60A1. The first segment 60A11 is jumpered to the second segment 60A12 below the floating touch unit 50B, which is in a different layer from the first segment 60A11, and then jumpered back to the third segment 60A13 in the same layer as the first segment 60A11, thus achieving the electrical connection effect of two adjacent receiving touch units 50A1 in the first direction X. In this embodiment, by using any conductive film layer below the floating touch unit 50B as the electrical connection structure between two adjacent touch units 50A, it is possible to avoid directly connecting two adjacent receiving touch units 50A1 using floating touch units 50B made of transparent conductive material. Since the resistance of metallic conductive material is less than that of transparent conductive material, using any conductive film layer below the floating touch unit 50B as the electrical connection structure between two adjacent touch units 50A helps to reduce the load on the first connecting line 60A1 and improve signal transmission performance.The two adjacent transmitting touch units 50A2 in the second direction Y are still electrically connected through the second connecting line 60A2 located in a certain conductive film layer in the driving array layer 20. The second connecting line 60A2 is on a different layer from the first connecting line 60A1, which can avoid mutual interference between the second connecting line 60A2 and the first connecting line 60A1, thus avoiding mutual interference between the touch driving signal and the driving sensing signal, which is beneficial to improving touch performance.

[0108] Similarly, as shown in Figures 16 and 17, Figure 16 is a schematic diagram of another planar structure of the display panel provided in this application embodiment, and Figure 17 is a schematic diagram of the connection structure of the touch electrode layer and touch electrode connecting lines in a part of Figure 16. Along the second direction Y, two adjacent transmitting touch units 50A2 are electrically connected through the second connecting line 60A2. Along the first direction X, two adjacent receiving touch units 50A1 are electrically connected through the first connecting line 60A1. The second connecting line 60A2 includes a fourth sub-segment 60A21, the first... The fifth sub-segment 60A22 and the sixth sub-segment 60A23 are of different layers from the fourth sub-segment 60A21 and the sixth sub-segment 60A23. The fifth sub-segment 60A22 can be connected to a different film layer from the fourth sub-segment 60A21 and the sixth sub-segment 60A23 through a via. Along the direction Z perpendicular to the plane of the substrate 10, the fifth sub-segment 60A22 at least partially overlaps with the floating touch unit 50B, that is, the second connection line 60A2 located between the bonding electrode 30 and the substrate 10. The second connection line 60A2 can... To achieve electrical connection between two adjacent transmitting touch units 50A2 in the second direction Y, multiple conductive film layers are disposed in the driving array layer 20. This can be achieved by electrically connecting the transmitting touch unit 50A2 through the fourth segment 60A21 of the second connecting line 60A2 located in the driving array layer 20, then electrically connecting it through a via to another conductive film layer in the driving array layer 20 to form a fifth segment 60A22, and finally electrically connecting the fifth segment 60A22 to a sixth segment 60A2 located in the same layer as the fourth segment 60A21. After step 3, another transmitting touch unit 50A2 is electrically connected to it. That is, the electrical connection structure of two adjacent transmitting touch units 50A2 in the second direction Y includes at least three segments of the second connecting line 60A2. The line is connected to the fifth segment 60A22 below the floating touch unit 50B, which is on a different layer than the fourth segment 60A21, and then connected back to the sixth segment 60A23 on the same layer as the fourth segment 60A21, thus achieving the electrical connection effect of two adjacent transmitting touch units 50A2 in the second direction Y. In this embodiment, by using any conductive film layer below the floating touch unit 50B as the electrical connection structure between two adjacent touch units 50A, it is possible to avoid directly connecting two adjacent transmitting touch units 50A2 using floating touch units 50B made of transparent conductive material. Since the resistance of metallic conductive material is less than that of transparent conductive material, using any conductive film layer below the floating touch unit 50B as the electrical connection structure between two adjacent touch units 50A helps to reduce the load on the second connecting line 60A2 and improve signal transmission performance.The two adjacent receiving touch units 50A1 in the first direction X are still electrically connected through the first connection line 60A1 located in a certain conductive film layer in the driving array layer 20. The first connection line 60A1 and the second connection line 60A2 are in different layers, which can avoid mutual interference between the first connection line 60A1 and the second connection line 60A2, that is, avoid mutual interference between the touch driving signal and the driving sensing signal, which is beneficial to improving touch performance.

[0109] In some alternative embodiments, please refer to Figures 2, 3, 8-9 and 18 and 19. Figure 18 is a schematic cross-sectional view of the structure along the D1-D1' direction in Figure 8, and Figure 19 is a schematic cross-sectional view of the structure along the D2-D2' direction in Figure 8. In this embodiment, the film layer structure of the display panel 000 can be such that, along the direction away from the substrate 10, the driving array layer 20 includes at least a first metal layer M0, a semiconductor layer 201, a second metal layer M1, and a third metal layer Mc. The semiconductor layer 202 is located between the first metal layer M0 and the second metal layer M1, and the third metal layer Mc is located on the side of the second metal layer M1 away from the first metal layer M0.

[0110] The driving array layer 20 includes a thin film transistor 20T and a capacitor 20C. The active part of the thin film transistor 20T is located in the semiconductor layer 201. The gate 20TG of the thin film transistor 20T is located in at least one of the second metal layer M1 and the first metal layer M0. One plate 20C1 of the capacitor 20C is located in the third metal layer Mc.

[0111] Optionally, the driving array layer 20 may also include a fourth metal layer M2 and a fifth metal layer M3;

[0112] Along the direction Z perpendicular to the plane where the substrate 10 is located, the fourth metal layer M2 is located on the side of the third metal layer Mc away from the substrate, and the fifth metal layer M3 is located between the fourth metal layer M2 and the bonding electrode 30.

[0113] The display panel 000 includes multiple first power signal lines PVDD and multiple data lines DATA;

[0114] The data line DATA and a portion of the first power signal line PVDD are located on the fourth metal layer M2, and at least a portion of the first power signal line PVDD is located on the fifth metal layer M3 (not shown in the figure).

[0115] This embodiment explains the film layer structure of the display panel 000. Specifically, the conductive film layer structure of the driving array layer 20 can be such that, along the direction away from the substrate 10, the driving array layer 20 sequentially includes at least a first metal layer M0, a semiconductor layer 201, a second metal layer M1, a third metal layer Mc, a fourth metal layer M2, and a fifth metal layer M3, wherein the semiconductor layer 202 is located between the first metal layer M0 and the second metal layer M1. The conductive film layer of the driving array layer 20 is generally used to fabricate thin-film transistors 20T, capacitors 20C, and various types of driving signal traces, etc. The driving signal traces can be scan lines, data lines, power lines, reset lines, etc. This embodiment does not provide examples of each; for specific details, please refer to the film layer structure of the display panel in related technologies for understanding. The driving array layer 20 of this embodiment may include thin-film transistors 20T, capacitors 20C, multiple first power signal lines PVDD, and multiple data lines DATA. The first power signal line PVDD is used to provide a first power signal to the pixel circuit in the display panel 000, and the data line DATA is used to provide a data voltage signal to the pixel circuit in the display panel 000. In this embodiment, the active portion of the thin-film transistor 20T is located in the semiconductor layer 201, and the gate 20TG of the thin-film transistor 20T is located in at least one of the second metal layer M1 and the first metal layer M0. For example, the gate of the thin-film transistor 20T can be located in the second metal layer M1, in which case the thin-film transistor 20T is a top-gate transistor. The gate of the thin-film transistor 20T can also be located in the first metal layer M0, in which case the thin-film transistor 20T is a bottom-gate transistor. The thin-film transistor 20T can also be a dual-gate transistor, with its top gate and bottom gate located in the second metal layer M1 and the first metal layer M0, respectively. This embodiment does not limit the type of thin-film transistor 20T, as long as the driving array layer 20 of the display panel 000 includes the above-mentioned metal conductive layer, which can meet the fabrication requirements of different types of thin-film transistors 20T. In this embodiment, the first metal layer M0 is located on the side of the semiconductor layer 201 facing the substrate 10. The first metal layer M0 can also be used as a light-shielding layer to shield the active portion of the thin-film transistor 20T in the semiconductor layer 201. This embodiment does not limit the specific configuration of the first metal layer M0; it can be designed according to actual needs during implementation. In the pixel circuit of the display panel 000, one electrode 20C1 of the capacitor 20C is located in the third metal layer Mc, and the other electrode 20C1 of the capacitor 20C can be located in the fourth metal layer M2, the fifth metal layer M3, or the second metal layer M1. This embodiment does not limit this. The fourth metal layer M2 can be used to fabricate the data line DATA and part of the first power signal line PVDD. The fourth metal layer M2 can also be used to fabricate the source and drain of the thin-film transistor 20T. The fourth metal layer M2 is close to the semiconductor layer 201, so the data line DATA and part of the first power signal line PVDD are disposed in the fourth metal layer M2, which facilitates electrical connection with the active portion of the thin-film transistor 20T in the semiconductor layer 201.The fifth metal layer M3 is located between the fourth metal layer M2 and the bonding electrode 30. That is, the fifth metal layer M3 is located on the side of the fourth metal layer M2 away from the substrate 10. At least part of the first power signal line PVDD is located in the fifth metal layer M3. The first power signal line PVDD located in the fourth metal layer M2 and the first power signal line PVDD located in the fifth metal layer M3 can be connected in parallel, which helps to reduce the impedance of the first power signal line PVDD and improve the signal transmission performance.

[0116] It is understood that this embodiment is only an example illustrating the film layer and setting structure of the driving array layer 20 in the display panel 000. In actual implementation, the film layer structure of the driving array layer 20 includes, but is not limited to, this, and can be set according to actual needs. This embodiment will not elaborate on this.

[0117] In this embodiment, the touch unit connection line 60A includes a first connection line 60A1 and a second connection line 60A2. Along the first direction X, two adjacent receiving touch units 50A1 are electrically connected through the first connection line 60A1 (as shown in Figure 19); along the second direction Y, two adjacent transmitting touch units 50A2 are electrically connected through the second connection line 60A2 (it is understood that, due to limited space in the cross-sectional view, the electrical connection between two adjacent transmitting touch units 50A2 through the second connection line 60A2 is not shown in Figure 18 to clearly illustrate the structure of the thin-film transistor). The first connection line 60A1 and the second connection line 60A2 are disposed in different layers, and the first connection line 60A1 and the second connection line 60A2 are disposed in a certain conductive film layer of the driving array layer 20, satisfying that the touch unit connection line 60A is located on the side of the bonding electrode 30 facing the substrate 10. Setting the first connecting line 60A1 and the second connecting line 60A2 to be on different layers allows the first connecting line 60A1, which electrically connects two adjacent receiving touch units 50A1, and the second connecting line 60A2, which electrically connects two adjacent transmitting touch units 50A2, to cross and be insulated, avoiding mutual interference between touch driving signals and touch sensing signals, and helping to ensure touch detection performance.

[0118] Optionally, this embodiment does not limit the film layers for the first connecting line 60A1 and the second connecting line 60A2. The first connecting line 60A1 can be set on the first metal layer M0, and the second connecting line 60A2 can be set on the second metal layer M1 or the third metal layer Mc (as shown in Figure 18); if the first connecting line 60A1 can be set on the second metal layer M1 or the third metal layer Mc, then the second connecting line 60A2 can be set on the first metal layer M0, as long as the first connecting line 60A1 and the second connecting line 60A2 are on different layers.

[0119] In this embodiment, the first connecting line 60A1 and the second connecting line 60A2 are positioned on the first metal layer M0, the second metal layer M1, or the third metal layer Mc as much as possible, avoiding their placement on the fourth metal layer M2 and the fifth metal layer M3. This allows sufficient space in the fourth metal layer M2 and the fifth metal layer M3 for the first power signal line PVDD and the data line DATA, thus fully utilizing the space in the fourth metal layer M2 and the fifth metal layer M3. This maximizes the routing area of ​​the first power signal line PVDD, which helps reduce IR-drop and improves signal transmission performance. Furthermore, at least one of the first connecting line 60A1 and the second connecting line 60A2 is located on the first metal layer M0. Compared to other metal layers, the first metal layer M0 has more space, thus allowing for efficient use of the panel film layer space to reduce IR-drop on the first power signal line PVDD and ensure display quality.

[0120] In some alternative embodiments, as shown in Figures 1, 8, 10, and 18, the display panel 000 in this embodiment includes a plurality of pixel units 00, and each pixel unit 00 includes at least three light-emitting devices 40 of different colors (distinguished by different filling patterns in the figures).

[0121] Along the second direction Y, at least one pixel unit 00 is included between two adjacent touch electrode blocks 501. Optionally, the display panel 000 in this embodiment can be a transparent display panel, which includes a light-transmitting area TA and a light-emitting area FA. The light-emitting device 40 is located in the light-emitting area FA, and the touch electrode blocks 501 in the touch unit 50A are located in the light-transmitting area TA.

[0122] This embodiment explains that the display panel 000 can be a transparent display panel. Since the touch unit 50A of the touch electrode layer 50 is generally made of a transparent conductive material, it has high light transmittance. The area where the touch unit 50A is located can be understood as the light-transmitting area TA. The area where the light-emitting device 40 is located can be understood as the light-emitting area FA. In this embodiment, the film layers for fabricating the first connecting line 60A1 and the second connecting line 60A2 are located as close as possible to the first metal layer M0, the second metal layer M1, or the third metal layer Mc, and are avoided as much as possible from being located in the fourth metal layer M2 and the fifth metal layer M3. This allows the fourth metal layer M2 and the fifth metal layer M3 to have enough space to lay out the first power signal line PVDD and the data line DATA, thereby making full use of the space in the fourth metal layer M2 and the fifth metal layer M3. The routing area of ​​the first power signal line PVDD is set as large as possible, which helps to reduce the IR-drop of the first power signal line PVDD and improve the signal transmission effect. Furthermore, the first connecting line 60A1 and the second connecting line 60A2 do not occupy the fourth metal layer M2 and the fifth metal layer M3. This allows the area of ​​the opaque structure of the fourth metal layer M2 and the fifth metal layer M3 (such as data lines and the first power signal line, which can be located in the light-emitting area FA as much as possible) to be minimized. This ensures that the opaque structure of the fourth metal layer M2 and the fifth metal layer M3 does not occupy the light-transmitting area TA, which can effectively improve the transmittance of the display panel 000 and ensure a transparent display effect.

[0123] In some alternative embodiments, such as the embodiments in Figures 14 and 15 above, when at least one floating touch unit 50B is included between two adjacent touch units 50A along a direction parallel to the plane of the substrate 10, any conductive film layer below the floating touch unit 50B can be used as the electrical connection structure between the two adjacent touch units 50A (the dashed line in Figure 20 represents the signal transmission path between two adjacent receiving touch units 50A1). As shown in Figures 15 and 20, Figure 20 is a cross-sectional view of the structure along E1-E1' in Figure 15. Along the first direction X, two adjacent receiving touch units 50A1 are electrically connected through a first connecting line 60A1. Along the second direction Y, two adjacent transmitting touch units 50A2 are electrically connected through a second connecting line 60A2. That is, the first connecting line 60A1 is located between the bonding electrode 30 and the substrate 10. The first connecting line 60A1 can be disposed in multiple conductive film layers in the driving array layer 20. In order to realize the electrical connection between two adjacent receiving touch units 50A1 in the first direction X, the first segment 60A11 of the first connecting line 60A1 located in the driving array layer 20 can be electrically connected and led out from the receiving touch unit 50A1. The first segment 60A11 of the first connecting line 60A1 is located in the first metal layer M0, and then electrically connected through a via. The second segment 60A12 is formed by connecting the second metal layer M1 in the driving array layer 20. At this time, the second connecting line 60A2 can be located in the third metal layer Mc. Then, the second segment 60A12 is electrically connected to the third segment 60A13 located in the same layer as the first segment 60A11 (the third segment 60A13 is also located in the first metal layer M0). Then, another receiving touch unit 50A1 is electrically connected to it. That is, the electrical connection structure of two adjacent receiving touch units 50A1 in the first direction X includes at least three segments of the first connecting line 60A1. The first segment 60A11 is jumpered to the second segment 60A12, which is in a different layer from the first segment 60A11, below the floating touch unit 50B. Then, the jumper is returned to the third segment 60A13, which is in the same layer as the first segment 60A11, to achieve the electrical connection effect of two adjacent receiving touch units 50A1 in the first direction X.

[0124] In some alternative embodiments, such as those in Figures 16 and 17 above, when at least one floating touch unit 50B is included between two adjacent touch units 50A along a direction parallel to the plane of the substrate 10, any conductive film layer below the floating touch unit 50B can be used as the electrical connection structure between the two adjacent touch units 50A. As shown in Figures 17 and 21, Figure 21 is a cross-sectional structural diagram along E2-E2' in Figure 17 (the dashed line in Figure 21 represents the signal transmission path of two adjacent transmitting touch units 50A2). Along the second direction Y, two adjacent transmitting touch units 50A2 are electrically connected through a second connecting line 60A2. Along the first direction X, two adjacent receiving touch units 50A1 are electrically connected through a first connecting line 60A1, i.e., the second connecting line 60A2 is located between the bonding electrode 30 and the substrate 10. The second connecting line 60A2 can be disposed in multiple conductive film layers in the driving array layer 20. In order to realize the electrical connection of two adjacent transmitting touch units 50A2 in the second direction Y, it can be electrically connected and led out from the transmitting touch unit 50A2 through the fourth sub-segment 60A21 of the second connecting line 60A2 located in the driving array layer 20. The fourth sub-segment 60A21 of the second connecting line 60A2 is located in the first... The metal layer M0 is then electrically connected to the second metal layer M1 in the driving array layer 20 through a via to form the fifth sub-segment 60A22. At this time, the first connecting line 60A1 can be located in the third metal layer Mc. Then, the fifth sub-segment 60A22 is electrically connected to the sixth sub-segment 60A23 located in the same layer as the fourth sub-segment 60A21 (the sixth sub-segment 60A23 is also located in the first metal layer M0). Then, another transmitting touch unit 50A2 is electrically connected to it. That is, the electrical connection structure of two adjacent transmitting touch units 50A2 in the second direction Y includes at least three segments of the second connecting line 60A2. The second connecting line 60A2 is connected to the fifth sub-segment 60A22, which is in a different layer from the fourth sub-segment 60A21, below the floating touch unit 50B, and then connected back to the sixth sub-segment 60A23, which is in the same layer as the fourth sub-segment 60A21, to achieve the electrical connection effect of two adjacent transmitting touch units 50A2 in the second direction Y.

[0125] In some alternative embodiments, please refer to Figures 8-13 and Figures 22 and 23. Figure 22 is a schematic cross-sectional view of F1-F1' in Figure 12, and Figure 23 is a schematic cross-sectional view of F2-F2' in Figure 12. In this embodiment, along the second direction Y, the (n+1)th touch electrode block row 501H of the touch unit 50A includes at least a first touch electrode block 5011, a second touch electrode block 5012, and a third touch electrode block 5013; in the first direction X, the second touch electrode block 5012 is located between the first touch electrode block 5011 and the third touch electrode block 5013.

[0126] Along the first direction X, the (n+1)th touch electrode block column 501L of the touch unit 50A includes a fourth touch electrode block 5014, a second touch electrode block 5012, and a fifth touch electrode block 5015; in the second direction Y, the second touch electrode block 5012 is located between the fourth touch electrode block 5014 and the fifth touch electrode block 5015.

[0127] The touch electrode block connection line 60B includes a first sub-line 60B1, a second sub-line 60B2, a third sub-line 60B3, and a fourth sub-line 60B4;

[0128] The first touch electrode block 5011 is electrically connected to the second touch electrode block 5012 via the first sub-line 60B1, and the third touch electrode block 5013 is electrically connected to the second touch electrode block 5012 via the second sub-line 60B2.

[0129] The fourth touch electrode block 5014 is electrically connected to the second touch electrode block 5012 via the third sub-line 60B3, and the fifth touch electrode block 5015 is electrically connected to the second touch electrode block 5012 via the fourth sub-line 60B4.

[0130] It is understood that the electrical connection in this embodiment can be understood as a direct electrical connection, such as achieving a direct electrical connection by opening several vias in the film layer, without the need for other conductive structures.

[0131] In this embodiment, at least one of the first sub-line 60B1 and the second sub-line 60B2 is on a different layer than at least one of the third sub-line 60B3 and the fourth sub-line 60B4.

[0132] Optionally, the first sub-line 60B1 and the second sub-line 60B2 are located in the same layer; and / or the third sub-line 60B3 and the fourth sub-line 60B4 are located in the same layer; that is, the film layers where the first sub-line 60B1 and the second sub-line 60B2 are located and the film layers where the third sub-line 60B3 and the fourth sub-line 60B4 are located are different layers.

[0133] Optionally, the first sub-line 60B1 is located in the first metal layer M0, and the third sub-line 60B3 is located in either the second metal layer M1 or the third metal layer Mc.

[0134] This embodiment explains that the touch unit 50A includes n2+(n+1)2 touch electrode blocks 501, where n is a positive integer. In order to make the shape of a single touch unit 50A rhombus in the microscopic view, the touch unit 50A includes n2+(n+1)2 touch electrode blocks 501 arranged in a multi-row, multi-column cross shape. The n2+(n+1)2 touch electrode blocks 501 of a single touch unit 50A need to be electrically connected to ensure that the touch signals received or transmitted on a single touch unit 50A are the same.

[0135] This embodiment uses n as a positive integer 1 as an example for illustration. In a single touch unit 50A, along the second direction Y, the second touch electrode block row 501H of the touch unit 50A includes at least a first touch electrode block 5011, a second touch electrode block 5012, and a third touch electrode block 5013; in the first direction X, the second touch electrode block 5012 is located between the first touch electrode block 5011 and the third touch electrode block 5013; along the first direction X, the second touch electrode block column 501L of the touch unit 50A includes a fourth touch electrode block 5014, a second touch electrode block 5012, and a fifth touch electrode block 5015; in the second direction Y, the second touch electrode block 5012 is located between the fourth touch electrode block 5014 and the fifth touch electrode block 5015. Thus, the overall shape of the touch unit 50A in a microscopic view is rhomboid. The touch electrode block connection line 60B includes a first sub-line 60B1, a second sub-line 60B2, a third sub-line 60B3, and a fourth sub-line 60B4. The first touch electrode block 5011, the second touch electrode block 5012, the third touch electrode block 5013, the fourth touch electrode block 5014, and the fifth touch electrode block 5015 are electrically connected via the aforementioned touch electrode block connection line 60B. Specifically, the first touch electrode block 5011 is electrically connected to the second touch electrode block 5012 via the first sub-line 60B1; the third touch electrode block 5013 is electrically connected to the second touch electrode block 5012 via the second sub-line 60B2; the fourth touch electrode block 5014 is electrically connected to the second touch electrode block 5012 via the third sub-line 60B3; and the fifth touch electrode block 5015 is electrically connected to the second touch electrode block 5012 via the fourth sub-line 60B4.

[0136] In this embodiment, at least one of the first sub-line 60B1 and the second sub-line 60B2 is on a different layer than at least one of the third sub-line 60B3 and the fourth sub-line 60B4. That is, the first sub-line 60B1 and the second sub-line 60B2, which electrically connect the first touch electrode block 5011, the second touch electrode block 5012, and the third touch electrode block 5013 in the first direction X, can be on the same layer. The third sub-line 60B3 and the fourth sub-line 60B4, which electrically connect the fourth touch electrode block 5014, the second touch electrode block 5012, and the fifth touch electrode block 5015 in the second direction Y, can be on the same layer. However, the film layers where the first sub-line 60B1 and the second sub-line 60B2 are located are different from the film layers where the third sub-line 60B3 and the fourth sub-line 60B4 are located. This can prevent short circuits from occurring when the touch electrode block connecting lines 60B in different directions are located on the same layer and cross.

[0137] Optionally, in this embodiment, the first sub-line 60B1 is located in the first metal layer M0, and the third sub-line 60B3 is located in one of the second metal layer M1 and the third metal layer Mc. That is, the touch electrode block connecting lines 60B in a single touch unit 50A that are used to electrically connect different touch electrode blocks 501 are preferably located in one of the first metal layer M0, the second metal layer M1, and the third metal layer Mc, and are preferably avoided in the fourth metal layer M2 and the fifth metal layer M3. This allows the fourth metal layer M2 and the fifth metal layer M3 to have enough space to lay the first power signal line PVDD and the data line DATA, thereby making full use of the space in the fourth metal layer M2 and the fifth metal layer M3, and setting the routing area of ​​the first power signal line PVDD as large as possible, which is beneficial to reducing the IR-drop of the first power signal line PVDD and improving the signal transmission effect. Furthermore, at least one of the film layers containing the first sub-line 60B1, the second sub-line 60B2, the third sub-line 60B3, and the fourth sub-line 60B4 is located in the first metal layer M0. Compared to other metal layers, the first metal layer M0 has more space, so by making reasonable use of the space of the panel film layers, the IR-drop on the first power signal line PVDD can be reduced, thus ensuring display quality.

[0138] In some optional embodiments, please refer to Figures 8, 9 and 24. Figure 24 is a schematic diagram of another planar structure of the display panel provided in the embodiment of this application. In this embodiment, the same receiving unit row 50A1H is electrically connected to a receiving signal line RX, and the same transmitting unit column 50A2L is electrically connected to a transmitting signal line TX.

[0139] The display panel 000 includes a display area AA and a non-display area NA. The light-emitting device 40 is located in the display area AA. The non-display area NA includes at least a first bonding pad PIN1 and a second bonding pad PIN2.

[0140] The receive signal line RX is electrically connected to the first bonding pad PIN1, and the transmit signal line TX is electrically connected to the second bonding pad PIN2.

[0141] This embodiment explains that the touch units 50A of the touch electrode layer 50 can be arranged as follows: multiple receiving touch units 50A1 are arranged along the first direction X to form a receiving unit row 50A1H, and multiple transmitting touch units 50A2 are arranged along the second direction Y to form a transmitting unit column 50A2L. The multiple receiving unit rows 50A1H are arranged sequentially along the second direction Y, and the multiple transmitting unit columns 50A2L are arranged sequentially along the first direction X. The receiving unit rows 50A1H and the transmitting unit columns 50A2L intersect and are mutually insulated. The same transmitting unit column 50A2L is electrically connected to a transmitting signal line TX. At least one end of the same transmitting unit column 50A2L is electrically connected to a transmitting signal line TX. The transmitting signal line TX is electrically connected to the second bonding pad PIN2 of the non-display area NA. The second bonding pad PIN2 can be located in the area where the driver chip is subsequently bonded. Through the bonding of the driver chip, the touch driving signal provided by the driver chip is output to the transmitting signal line TX through the second bonding pad PIN2 and transmitted to each transmitting unit column 50A2L. A receiving unit row 50A1H is electrically connected to a receiving signal line RX. At least one end of a receiving unit row 50A1H is electrically connected to a receiving signal line RX. The receiving signal line RX is electrically connected to the first bonding pad PIN1 of the non-display area NA. The first bonding pad PIN1 can be located in the area where a driver chip is subsequently bonded. Through the bonding of the driver chip, the touch sensing signal is received to the first bonding pad PIN1 through the receiving signal line RX, and the touch detection signal is output through the subsequently bonded driver chip. During touch detection, the touch driving signal provided by the driver chip is output to the transmit signal line TX via the second bonding pad PIN2 and transmitted to each transmit unit column 50A2L. The touch driving signal is input to multiple transmit touch units 50A2 in the transmit unit column 50A2L via the second connection line 60A2. The touch sensing signals from multiple receive touch units 50A1 in the receive unit row 50A1H are received and detected via the first connection line 60A1. The touch sensing signals are received to the first bonding pad PIN1 via the receive signal line RX, and the touch detection signal is output through the subsequently bonded driver chip. When the touch subject touches the display panel 000, the sensing signal on the receive touch unit 50A1 at the touch position changes. The touch position can be determined based on the touch sensing signal received and detected by the first connection line 60A1 and transmitted to the receive signal line RX of the current row, thus achieving the touch detection effect.

[0142] Optionally, in this embodiment, the receive signal line RX and the transmit signal line TX can be made using a conductive film layer in the drive array layer 20. The film layer where the receive signal line RX is located and the film layer where the transmit signal line TX is located can be on the same layer, as long as it is necessary to avoid cross-short circuit between the receive signal line RX and the transmit signal line TX.

[0143] Optionally, in this embodiment, the receive signal line RX and the transmit signal line TX can be fabricated using at least two different conductive film layers in the drive array layer 20. The receive signal line RX and the transmit signal line TX can be set in different layers, as shown in Figure 18. The receive signal line RX can be fabricated using the first metal layer M0, and the transmit signal line TX can be fabricated using the second metal layer M1 or the third metal layer Mc. Alternatively, the receive signal line RX can be fabricated using the second metal layer M1 or the third metal layer Mc, and the transmit signal line TX can be fabricated using the first metal layer M0. This allows the film layers of the receive signal line RX and the transmit signal line TX to avoid the film layer of the first power signal line PVDD, which helps to leave sufficient space for the first power signal line PVDD and ensure its signal transmission performance.

[0144] Optionally, please refer to Figures 8, 9, and 25. Figure 25 is a schematic diagram of another planar structure of the display panel provided in this embodiment. In this embodiment, at least a portion of the receiving signal line RX is located in the display area AA. That is, the receiving signal line RX can be led out from the first connecting line 60A1 between two adjacent receiving touch units 50A1 in the receiving unit row 50A1H, and then routed from the display area AA to be electrically connected to the first bonding pad PIN1 of the non-display area NA (as shown in Figure 25); or at least a portion of the transmitting signal line TX is located in the display area AA. That is, the transmitting signal line TX can be led out from the second connecting line 60A2 between two adjacent transmitting touch units 50A2 in the transmitting unit column 50A2L, and then routed from the display area AA to be electrically connected to the second bonding pad PIN2 of the non-display area NA (not shown in the figure); or at least a portion of the receiving signal line TX is located in the display area AA. The receive signal line RX is located in the display area AA, and at least a portion of the transmit signal lines TX are located in the display area AA. That is, at least a portion or a number of segments of the receive signal line RX and the transmit signal line TX are routed from the display area AA and then electrically connected to the bonding pads of the non-display area NA. Since the setting film of the receive signal line RX and the transmit signal line TX avoids the setting film of the first power signal line PVDD, and the setting film of the receive signal line RX and the transmit signal line TX is set in the first metal layer M0, the second metal layer M1, or the third metal layer Mc with sufficient space, at least a portion or a number of segments of the receive signal line RX and the transmit signal line TX are routed from the display area AA. This can avoid short circuits with the data line and the first power signal line PVDD, and can also effectively reduce the space of the non-display area NA of the bezel, which is conducive to realizing the narrow bezel design of the display panel 000.

[0145] Alternatively, in some other optional embodiments, the receive signal line RX is located in the non-display area NA, and the transmit signal line TX is located in the non-display area NA. Since the film layers for the receive signal line RX and the transmit signal line TX are preferably located in the first metal layer M0, the second metal layer M1, or the third metal layer Mc with sufficient space, even if the first power signal line PVDD is wound in the non-display area NA, it is wound in the fourth metal layer M2 and the fifth metal layer M5 of the non-display area NA. Therefore, the receive signal line RX and the transmit signal line TX are located in the non-display area NA, and although they overlap with the first power signal line PVDD in the non-display area NA, they are not on the same layer, so they will not interfere with each other, and the narrow bezel effect of the display panel 000 can also be achieved.

[0146] In some alternative embodiments, please refer to FIG26, which is a schematic diagram of another planar structure of the display panel provided in the embodiment of this application (it is understood that in order to clearly illustrate the gate driving circuit 001 and pixel circuit 002 of this embodiment, the transparency of FIG26 is filled, and FIG26 only shows part of the electrical connection structure between the gate driving circuit 001 and pixel circuit 002 and the light-emitting device). In this embodiment, the touch electrode layer 50 includes a plurality of touch electrode blocks 501.

[0147] The display panel 000 includes a gate driving circuit 001 and a pixel circuit 002;

[0148] At least a portion of the touch electrode block 501 has its orthogonal projection onto the plane of the substrate 10 overlapping with the gate drive circuit 001 or the pixel circuit 002.

[0149] This embodiment explains that the touch electrode layer 50 may include multiple touch units 50A, and each touch unit 50A may include multiple electrically connected touch electrode blocks 501. The display panel 000 may also include a gate driving circuit 001 and a pixel circuit 002. The gate driving circuit 001 is electrically connected to the pixel circuit 002 and is used to provide driving signals to the pixel circuit 002. The pixel circuit 002 is electrically connected to the light-emitting device 40 and is used to drive the light-emitting device 40 to emit light for display.

[0150] In this embodiment, the gate driving circuit 001 can be located in the non-display area NA. The orthographic projection of the gate driving circuit 001 located in the non-display area NA onto the plane of the substrate 10 can at least partially overlap with the touch electrode block 501 located in the non-display area NA. Since the touch electrode block 501 of the touch electrode layer 50 is located above the bonding electrode 30, even if the orthographic projection of at least part of the touch electrode block 501 onto the plane of the substrate 10 overlaps with the gate driving circuit 001, it will not affect the transmission effect of the electrical signal between the gate driving circuit 001 and the light-emitting device 40 bonded to the bonding electrode 30, thus effectively balancing display quality and touch performance.

[0151] When the display panel 000 is a frameless display panel, the gate driving circuit 001 can also be located in the display area AA. When the gate driving circuit 001 is located in the display area AA, the orthographic projection of at least a portion of the touch electrode block 501 on the plane of the substrate 10 overlaps with the gate driving circuit 001, thereby making full use of the spatial layout of the panel film layers. Furthermore, since the touch electrode block 501 of the touch electrode layer 50 is located above the bonding electrode 30, even if the orthographic projection of at least a portion of the touch electrode block 501 on the plane of the substrate 10 overlaps with the gate driving circuit 001, it will not affect the transmission effect of the electrical signal between the gate driving circuit 001 and the light-emitting device 40 bonded to the bonding electrode 30, thus effectively balancing display quality and touch performance.

[0152] In this embodiment, the pixel circuit 002 can be set in the display area AA. At least a portion of the touch electrode block 501 overlaps with the pixel circuit 002 in the orthographic projection of the substrate 10 plane. This allows full utilization of the spatial layout of the panel film layers. Furthermore, the touch electrode block 501 of the touch electrode layer 50 is located above the bonding electrode 30. Even if at least a portion of the touch electrode block 501 overlaps with the pixel circuit 002 in the orthographic projection of the substrate 10 plane, it will not affect the transmission effect of the electrical signal between the pixel circuit 002 and the light-emitting device 40 bonded to the bonding electrode 30. This effectively balances display quality and touch performance.

[0153] It is understood that the figures in this embodiment are only block diagrams illustrating the gate driving circuit 001 and the pixel circuit 002. In actual implementation, the electrical connection structure of the gate driving circuit 001 and the electrical connection structure of the pixel circuit 002 can be set according to actual needs, and this embodiment does not limit them.

[0154] In some optional embodiments, please refer to FIG27, which is a schematic planar structure diagram of a display device provided in an embodiment of this application. The display device 111 provided in this embodiment includes the display panel 000 provided in the above embodiments of this application. FIG27 only uses a mobile phone as an example to illustrate the display device 111. It can be understood that the display device 111 provided in the embodiments of this application can be other display devices 111 with display functions, such as computers, televisions, and vehicle display devices. This application does not make specific limitations in this regard. The display device 111 provided in the embodiments of this application has the beneficial effects of the display panel 000 provided in the embodiments of this application. For details, please refer to the specific description of the display panel 000 in the above embodiments. This embodiment will not repeat it here.

[0155] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0156] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display panel, comprising: Substrate; A driving array layer is located on one side of the substrate; Multiple bonded electrodes are located on the side of the drive array layer away from the substrate; A light-emitting device is located on the side of the bonding electrode away from the substrate, and the light-emitting device is electrically connected to the driving array layer through the bonding electrode; A touch electrode layer, wherein the touch electrode layer is electrically connected to a touch electrode connection line; In a direction perpendicular to the plane of the substrate, the touch electrode layer is located on the side of the bonding electrode away from the substrate, and the touch electrode connection line is located on the side of the bonding electrode close to the substrate.

2. The display panel according to claim 1, wherein, In a direction perpendicular to the plane of the substrate, the distance from the touch electrode layer to the substrate is greater than the distance from the bonding electrode to the substrate, and the distance from the bonding electrode to the substrate is greater than the distance from the touch electrode connection line to the substrate.

3. The display panel according to claim 1, wherein, Along a direction perpendicular to the plane of the substrate, the distance from the surface of the touch electrode layer facing the substrate to the substrate is a first distance, and the distance from the surface of the light-emitting device away from the substrate to the substrate is a second distance; wherein, the first distance is greater than or equal to the second distance.

4. The display panel according to claim 1 further includes a raised portion, which is located between the touch electrode layer and the bonding electrode in a direction perpendicular to the plane of the substrate, and the raised portion does not overlap with the light-emitting device.

5. The display panel according to claim 4, wherein, The touch electrode layer includes a plurality of touch electrode blocks. In a direction perpendicular to the plane of the substrate, the touch electrode blocks correspond one-to-one with the raised portions. There is a gap between the raised portions corresponding to two adjacent touch electrode blocks. The orthographic projection of the touch electrode blocks on the substrate is located within the orthographic projection range of the raised portions on the substrate.

6. The display panel according to claim 4, wherein, The touch electrode layer includes a plurality of touch electrode blocks, and in a direction perpendicular to the plane of the substrate, one of the raised portions corresponds to at least two different touch electrode blocks.

7. The display panel according to claim 1, wherein, The touch electrode layer includes multiple touch units, and the touch electrode connection line includes touch unit connection lines; Along a direction parallel to the plane of the substrate, two adjacent touch units are electrically connected through the touch unit connection line.

8. The display panel according to claim 7, wherein, The touch electrode layer also includes multiple floating touch units; Along a direction parallel to the plane of the substrate, at least one floating touch unit is included between two adjacent touch units; Along a direction perpendicular to the plane of the substrate, the touch unit connection line at least partially overlaps with the floating touch unit.

9. The display panel according to claim 8, wherein, The floating touch unit includes at least one floating touch electrode block.

10. The display panel according to claim 8, wherein, The plurality of touch units include a plurality of receiving touch units and a plurality of transmitting touch units; Multiple receiving touch units are arranged along a first direction to form a receiving unit row, and multiple receiving unit rows are arranged sequentially along a second direction; Multiple emission touch units are arranged along the second direction to form emission unit columns, and multiple emission unit columns are arranged sequentially along the first direction; wherein, the first direction and the second direction intersect in a direction parallel to the plane of the substrate; The touch unit connection line includes a first connection line and a second connection line. Along the first direction, two adjacent receiving touch units are electrically connected through the first connection line; along the second direction, two adjacent transmitting touch units are electrically connected through the second connection line.

11. The display panel according to claim 10, wherein, The first connecting line and the second connecting line are arranged in different layers.

12. The display panel according to claim 10, wherein, The first connecting line includes a first sub-segment, a second sub-segment, and a third sub-segment. The second sub-segment is on a different layer from the first and third sub-segments, and is positioned along a direction perpendicular to the plane of the substrate. The second sub-segment at least partially overlaps with the floating touch unit; or... The second connection line includes a fourth sub-segment, a fifth sub-segment, and a sixth sub-segment. The fifth sub-segment is on a different layer from the fourth and sixth sub-segments and is located in a direction perpendicular to the plane of the substrate. The fifth sub-segment at least partially overlaps with the floating touch unit.

13. The display panel according to claim 10, wherein, A row of the same receiving unit is electrically connected to a receiving signal line, and a column of the same transmitting unit is electrically connected to a transmitting signal line. The display panel includes a display area and a non-display area, the light-emitting device is located in the display area, and the non-display area includes at least a first bonding pad and a second bonding pad; The receiving signal line is electrically connected to the first bonding pad, and the transmitting signal line is electrically connected to the second bonding pad.

14. The display panel according to claim 13, wherein, The receiving signal line and the transmitting signal line are arranged on different layers.

15. The display panel according to claim 13, wherein, At least a portion of the received signal lines are located in the display area, and / or at least a portion of the transmitted signal lines are located in the display area.

16. The display panel according to claim 13, wherein, The receiving signal line is located in the non-display area, and the transmitting signal line is located in the non-display area.

17. The display panel according to claim 7, wherein, The touch unit includes n² + (n + 1)² touch electrode blocks, where n is a positive integer; the touch electrode connection lines also include touch electrode block connection lines. Along a direction parallel to the plane of the substrate, two adjacent touch electrode blocks in the touch unit are electrically connected through the touch electrode block connecting line.

18. The display panel according to claim 17, wherein, Along the second direction, the touch unit includes a plurality of rows of touch electrode blocks, and the (n+1)th row of touch electrode blocks includes (2n+1) touch electrode blocks; And / or, along the first direction, the touch unit includes a plurality of touch electrode block columns, the (n+1)th touch electrode block column including (2n+1) touch electrode blocks; wherein, the first direction and the second direction intersect in a direction parallel to the plane of the substrate.

19. The display panel according to claim 18, wherein, In the second direction, in one of the touch units, the number of touch electrode blocks included in the (n+1)th row of touch electrode blocks is greater than the number of touch electrode blocks included in other rows of touch electrode blocks; And / or, in the first direction, in one of the touch units, the number of touch electrode blocks included in the (n+1)th touch electrode block column is greater than the number of touch electrode blocks included in the other touch electrode block columns.

20. The display panel according to claim 18, wherein, Along the second direction, the (n+1)th row of the touch electrode blocks of the touch unit includes at least a first touch electrode block, a second touch electrode block, and a third touch electrode block; along the first direction, the second touch electrode block is located between the first touch electrode block and the third touch electrode block; Along the first direction, the (n+1)th touch electrode block column of the touch unit includes a fourth touch electrode block, a second touch electrode block, and a fifth touch electrode block; in the second direction, the second touch electrode block is located between the fourth touch electrode block and the fifth touch electrode block; The touch electrode block connection wires include a first sub-wire, a second sub-wire, a third sub-wire, and a fourth sub-wire; The first touch electrode block is electrically connected to the second touch electrode block via the first sub-line, and the third touch electrode block is electrically connected to the second touch electrode block via the second sub-line; The fourth touch electrode block is electrically connected to the second touch electrode block via the third sub-line, and the fifth touch electrode block is electrically connected to the second touch electrode block via the fourth sub-line; At least one of the first sub-line and the second sub-line is on a different layer than at least one of the third sub-line and the fourth sub-line.

21. The display panel according to claim 20, wherein, Along a direction away from the substrate, the driving array layer includes at least a first metal layer, a semiconductor layer, a second metal layer, and a third metal layer, wherein the semiconductor layer is located between the first metal layer and the second metal layer, and the third metal layer is located on the side of the second metal layer away from the first metal layer; The first sub-line is located in the first metal layer, and the third sub-line is located in one of the second metal layer and the third metal layer.

22. The display panel according to claim 21, wherein, The driving array layer includes thin-film transistors and capacitors. The active portion of the thin-film transistor is located in the semiconductor layer, the gate of the thin-film transistor is located in at least one of the second metal layer and the first metal layer, and one plate of the capacitor is located in the third metal layer.

23. The display panel according to claim 21, wherein, The driving array layer further includes a fourth metal layer and a fifth metal layer; Along a direction perpendicular to the plane of the substrate, the fourth metal layer is located on the side of the third metal layer away from the substrate, and the fifth metal layer is located between the fourth metal layer and the bonding electrode; The display panel includes multiple first power signal lines and multiple data lines; The data line and a portion of the first power signal line are located on the fourth metal layer, and at least a portion of the first power signal line is located on the fifth metal layer.

24. The display panel according to claim 17, wherein, The display panel includes multiple pixel units, and each pixel unit includes at least three light-emitting devices of different colors; Along the first direction or along the second direction, at least one pixel unit is included between two adjacent touch electrode blocks.

25. The display panel according to claim 7, wherein, The display panel includes a light-transmitting area and a light-emitting area, with the light-emitting device located in the light-emitting area and the touch unit located in the light-transmitting area.

26. The display panel according to claim 1, wherein, The touch electrode layer includes multiple touch electrode blocks; The display panel includes a gate driving circuit and a pixel circuit; At least a portion of the touch electrode block has its orthographic projection onto the plane of the substrate overlapping with the gate driving circuit or the pixel circuit.

27. A display device comprising the display panel according to any one of claims 1-26.

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