Display panel and display device

Abstract

This application provides a display panel and display device, including: a display area, a first non-display area, and a second non-display area. The display area surrounds the first non-display area, and the second non-display area surrounds the display area. The display panel includes multiple touch electrodes, and the first non-display area is provided with multiple first touch terminals. Touch signal lines are electrically connected to the first touch terminals and the touch electrodes. Touch signals can be transmitted using the touch electrodes in the touch layer, and then transmitted to the first touch terminals disposed in the first non-display area via the touch signal lines. The first non-display area has sufficient design space to accommodate multiple first touch terminals, enabling various design requirements for the touch terminals. Furthermore, placing the touch terminals in the first non-display area can additionally increase the number of touch terminals, and the size of the touch terminals is not limited by narrow steps. This satisfies the display panel's design requirements for narrow steps in multiple directions without affecting the display effect of the display panel.

Description

Technical Field

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

[0002] With the rapid development of display technology, touch display technology has gradually become ubiquitous in people's lives. Current display panels include a touch layer, which contains touch electrodes 10 and touch signal lines 20 distributed throughout the display panel. (Refer to...) Figure 1 As shown, the touch electrode 10 is used to receive touch signals from the user clicking the display screen and transmits the touch signals using the touch signal line 20. The touch signal line 20 is connected to the touch terminal 30 disposed below the display panel, and the touch signals can be transmitted from the touch layer to the driving substrate located below the touch layer through the touch terminal 30.

[0003] In other words, all touch signal lines 20 are connected to touch terminals 30 located below the display panel. However, due to the current requirement for narrow steps on the display panel, new design requirements have been put forward for the number and size of touch terminals 30. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a display panel and display device that can meet various design requirements for touch terminals.

[0005] This application provides a display panel, including: a display area, a first non-display area, and a second non-display area. The display area surrounds the first non-display area, and the second non-display area surrounds the display area. In a direction perpendicular to the plane of the display panel, the display panel includes a substrate, a first film layer group, and a touch layer. The touch layer is disposed on the side of the first film layer group away from the substrate. The touch layer includes a plurality of touch electrodes, which are disposed in the display area. Touch signal lines are connected to the touch electrodes. The first non-display area is provided with a plurality of first touch terminals, and the touch signal lines are electrically connected to the first touch terminals.

[0006] This application provides a display device, including a display panel as described in the above embodiments.

[0007] The display panel provided in this application embodiment includes: a display area, a first non-display area, and a second non-display area. The display area surrounds the first non-display area, and the second non-display area surrounds the display area, i.e., the second non-display area can be a border area. In the direction perpendicular to the plane where the display panel is located, the display panel includes a substrate, a first film layer group, and a touch layer. The touch layer is disposed on the side of the first film layer group away from the substrate. The touch layer includes a plurality of touch electrodes, which are disposed in the display area. Touch signal lines are connected to the touch electrodes. The first non-display area is provided with a plurality of first touch terminals, and the touch signal lines are connected to the first touch terminals. Electrical connection means that touch signals can be transmitted using touch electrodes in the touch layer and transmitted to the first touch terminal located in the first non-display area via touch signal lines. The first non-display area has sufficient design space to accommodate multiple first touch terminals, which can meet various design requirements for touch terminals. Furthermore, placing touch terminals in the first non-display area can increase the number of touch terminals, and the size of the touch terminals is not limited by narrow steps. This can meet the design requirements of the display panel for narrow steps in multiple directions without affecting the display effect of the display panel. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 A top view of a display panel structure is shown;

[0010] Figure 2 This illustration shows a top view of a display panel according to an embodiment of this application.

[0011] Figure 3 It is along Figure 2 A cross-sectional view of the display panel taken from the direction of BB'.

[0012] Figure 4 This illustration shows a top view of a touch layer structure provided in an embodiment of this application.

[0013] Figure 5 It is along Figure 4 A schematic diagram of the cross-sectional structure of the touch layer taken from the direction of CC;

[0014] Figure 6 This illustration shows a top view of another display panel provided in an embodiment of this application;

[0015] Figure 7 This illustration shows a top view of another display panel provided in an embodiment of this application;

[0016] Figure 8 This illustration shows a top view of another display panel provided in an embodiment of this application;

[0017] Figure 9 This illustration shows a top view of a first non-display area according to an embodiment of this application.

[0018] Figure 10 A cross-sectional structural schematic diagram of another display panel provided in an embodiment of this application is shown;

[0019] Figure 11 This illustration shows a top view of another display panel provided in an embodiment of this application;

[0020] Figure 12 This illustration shows a top view of another display panel provided in an embodiment of this application;

[0021] Figure 13 This illustration shows a top view of another display panel provided in an embodiment of this application;

[0022] Figure 14 This illustration shows a top view of another display panel provided in an embodiment of this application;

[0023] Figure 15 A schematic diagram of the planar structure of a display device provided in an embodiment of this application is shown. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0026] Secondly, this application provides a detailed description in conjunction with schematic diagrams. When detailing the embodiments of this application, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this application. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0027] With the rapid development of display technology, touch display technology has gradually become ubiquitous in people's lives. Current display panels include a touch layer, which contains touch electrodes and touch signal lines distributed throughout the display panel. (See reference...) Figure 1 As shown, the touch electrode may include sensing electrodes and driving electrodes arranged vertically and intersectingly. The touch electrode may be a strip electrode or a block electrode comprising multiple electrode blocks. Figure 1 The touch electrodes shown are block electrodes. Alternatively, the electrode arranged along the Y direction is the driving electrode, which is composed of multiple block electrodes 12 electrically connected together. The electrode arranged along the X direction is the sensing electrode, which is composed of multiple block electrodes 11 electrically connected together. Alternatively, the sensing electrode and the driving electrode can realize touch control based on the mutual capacitance principle. The touch signal line 20 is connected to the touch terminal 30 located below the display panel. The touch terminal 30 is connected to the driver chip. That is, after receiving the touch signal, the touch terminal 30 transmits it to the driver chip, which uses the driver chip to realize the touch control and display of the display panel.

[0028] In the prior art, the connecting cable 20 is connected to the touch terminal 30 located below the display panel, see reference. Figure 1 As shown, both the touch terminal 30 and the trace 40 are located below the display panel, i.e. at the lower step. With the requirement for a narrower step in the display panel, the horizontal (X direction) and vertical (Y direction) dimensions of the lower step are being compressed. The trace 40 can be compressed to its limit in the X direction to achieve a narrow step in the X direction. However, the current size, number, and spacing of the touch terminal 30 have been compressed to their limit and cannot be further reduced, resulting in the inability to meet the requirement for a narrow step in the display panel.

[0029] Therefore, in response to the current requirement for narrow steps in display panels, new design requirements have been put forward for the number and size of touch terminals 30.

[0030] Based on this, this application provides a display panel, including: a display area, a first non-display area, and a second non-display area. The display area surrounds the first non-display area, and the second non-display area surrounds the display area, i.e., the second non-display area can be a border area. In the direction perpendicular to the plane of the display panel, the display panel includes a substrate, a first film layer group, and a touch layer. The touch layer is disposed on the side of the first film layer group away from the substrate. The touch layer includes a plurality of touch electrodes, which are disposed in the display area. Touch signal lines are connected to the touch electrodes. The first non-display area is provided with a plurality of first touch terminals, and the touch signal lines are connected to the first touch electrodes. The control terminal is electrically connected, meaning that touch signals can be transmitted using the touch electrodes in the touch layer, and then transmitted to the first touch terminal located in the first non-display area via the touch signal line. The first non-display area has sufficient design space to accommodate multiple first touch terminals, enabling various design requirements for the touch terminals. Furthermore, placing the touch terminals in the first non-display area can increase the number of touch terminals, and the size of the touch terminals is not limited by narrow steps. This satisfies the display panel's design requirements for narrow steps in multiple directions without affecting the display panel's display effect.

[0031] To better understand the technical solution and effects of this application, the specific embodiments will be described in detail below with reference to the accompanying drawings.

[0032] refer to Figure 2 The diagram shown is a top view of a display panel 100 provided in an embodiment of this application.

[0033] The display panel 100 provided in this application embodiment includes a display area AA and a non-display area NA. The non-display area NA includes a first non-display area NA1 and a second non-display area NA2. The display area AA surrounds the first non-display area NA1, that is, the first non-display area NA1 is located within the display area AA. For example, the first non-display area NA1 can be a camera area, an area used to house a camera. The second non-display area NA2 surrounds the display area AA, and the second non-display area NA2 can be, for example, a border area. The display area AA is the area used for display, and the second non-display area NA2 is the area used to house the circuit structure that drives the display panel to display. The display area AA can occupy most of the display panel area, and the display area AA can be located at the center of the display panel, for example, the central area. The second non-display area NA2 is the area outside the display area AA, and the second non-display area NA2 can be defined as the edge area of ​​the display panel, for example, the peripheral area.

[0034] The display panel 100 provided in this application embodiment can be a rigid display panel or a flexible display panel. A rigid display panel is hard and not easily bent or folded, while a flexible display panel is flexible and can be easily bent, folded, or rolled up. For example, the display panel 100 can be a foldable display panel that can be folded and unfolded, a curved display panel with a curved display surface, a curved display panel with an area other than the curved display surface, a rollable display panel that can be rolled up and / or unfolded, or a stretchable display panel that can be stretched and / or not stretched, etc.

[0035] In embodiments of this application, the display panel 100 may be provided with a first touch terminal 200, which is used to receive touch signals transmitted by the touch signal line. (See reference...) Figure 2 As shown, multiple first touch terminals 200 can be set in the first non-display area NA1, i.e., in the camera area. This can reduce the design pressure of setting all touch terminals in the area below the display panel 100. The first non-display area NA1 has enough design space to accommodate multiple first touch terminals 200, which can meet various design requirements for touch terminals. Setting the first touch terminals 200 in the first non-display area NA1 can increase the number of touch terminals. The size of the touch terminals is not limited by the narrow step, which can meet the design requirements of the display panel 100 for narrow steps in multiple directions, especially the design requirements for horizontal (X direction) narrow steps, so as to reduce the horizontal width of the lower step of the display panel without affecting the display effect of the display panel.

[0036] In embodiments of this application, the first non-display area NA1 may include a punch-hole area 101, which may be equipped with a photosensitive device, such as a camera. (See reference...) Figure 2 As shown, the first touch terminal 200 can be disposed around the cutout area 101, specifically between the cutout area 101 and the display area AA. That is, the first touch terminal 200 can be disposed around the cutout area 101, which can meet various design requirements of the touch terminal.

[0037] In practical applications, the first non-display area NA1 may include multiple punch-hole areas 101, and a first touch terminal 200 may be provided around each punch-hole area 101 to meet the design requirements of the touch terminal.

[0038] As an example, the current size of the touch terminal can be 18 micrometers × 33 micrometers, and the spacing between the touch terminals can be 21 micrometers. If the first touch terminal 200 is set around the cutout area 101, the size of the same number of first touch terminals 200 can be increased to 80 micrometers × 80 micrometers, and the spacing between the first touch terminals 200 can be increased to 100 micrometers.

[0039] Therefore, by placing the first touch terminal 200 in the first non-display area NA1, it is possible to increase the size of the first touch terminal 200, increase the spacing between the first touch terminals 200, and increase the number of the first touch terminals 200, thereby meeting the design requirements of the touch terminal on the basis of a narrow step.

[0040] In embodiments of this application, the first non-display area NA1 includes a barrier 50, as referenced. Figure 3 As shown, Figure 3 It is along Figure 2 A cross-sectional view of the display panel taken from the direction of BB'. Touch terminals 200 can be positioned between the cut line of the punch-hole area 101 and the retaining wall 50. This means there is sufficient space in the first non-display area NA1 to accommodate multiple touch terminals 200, meeting various design requirements. The cut line of the punch-hole area 101 forms the punch-hole area 101 to allow for the placement of a photosensitive device within it. The retaining wall 50 prevents material leakage from the encapsulation layer.

[0041] The display panel 100 provided in this application embodiment includes a substrate 110. The substrate 110 may include an insulating material (e.g., it may be made of an insulating material), which may be glass, quartz, or polymer resin. The substrate 110 may be a flexible substrate that can be bent, folded, and / or rolled. As an example, the substrate 110 may include polyimide.

[0042] Specifically, substrate 110 may include a first substrate 111, a second substrate 113, and an inorganic barrier layer 112. In this configuration, each of the first substrate 111 and the second substrate 113 may include at least one polymer resin, such as polyethersulfone, polyacrylate, polyetherimide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyarylate, polyimide, polycarbonate, or cellulose acetate propionate. The first substrate 111 and the second substrate 113 may be made of the same material or different materials. The structure of substrate 110, including polymer resin and inorganic barrier layer, allows the display panel to be bent, folded, and / or rolled. It also enhances the flatness and temperature stability of substrate 110, facilitating the subsequent fabrication of other film layers on its surface and enabling it to withstand subsequent processing steps. Simultaneously, it further reduces the risk of film peeling during bending of the display panel and blocks the influence of mobile charges on the thin-film transistor channels, thereby improving display quality.

[0043] The display panel 100 provided in this application embodiment includes a first film layer group. The first film layer group may include a driving circuit layer 120, a light-emitting layer 130 and an encapsulation layer 140 stacked sequentially. The driving circuit layer 120 may be provided with a plurality of driving transistors, the light-emitting layer 130 may be provided with a plurality of light-emitting devices, and the encapsulation layer 140 is used to protect the light-emitting devices or driving transistors thereunder from the influence of water vapor or oxygen in the air.

[0044] The driving circuit layer 120 includes an active layer 21, a first metal layer 22, a second metal layer 24, and insulating layers between adjacent conductive layers, such as a buffer layer, a gate insulating layer, a first interlayer insulating layer, a second interlayer insulating layer, and a planarization layer. The driving circuit layer 120 may also include a third metal layer 25 and a fourth metal layer, and an insulating layer between them, not shown in the figure. Specifically, the channel of the driving transistor is located in the active layer 21, the gate of the driving transistor is located in the first metal layer 22, and the source and drain electrodes of the driving transistor are located in the second metal layer 24.

[0045] The light-emitting layer 130 includes an anode metal layer (including multiple anodes), an organic light-emitting layer, a cathode metal layer, and an insulating layer (such as a pixel definition layer 301) between adjacent conductive layers.

[0046] The encapsulation layer 140 includes at least one inorganic encapsulation layer and at least one organic encapsulation layer. Figure 3 The encapsulation layer 140 shown includes a first inorganic encapsulation layer 141, a second inorganic encapsulation layer 143, and an organic encapsulation layer 142 disposed between the first inorganic encapsulation layer 141 and the second inorganic encapsulation layer 143. The first inorganic encapsulation layer 141 and the second inorganic encapsulation layer 143 may include at least one inorganic material, such as alumina, titanium oxide, tantalum oxide, hafnium oxide, zinc oxide, silicon oxide, silicon nitride, and silicon oxynitride. The organic encapsulation layer 142 may include monomeric organic materials or polymeric materials (i.e., organic encapsulation materials). Examples of polymeric materials may include acrylic resins, epoxy resins, polyimides, and polyethylene.

[0047] It should be noted that, Figure 3 In the diagram, some film layers are depicted using simplified methods. For example, insulating layer 20a may include a buffer layer, a gate insulating layer, a first interlayer insulating layer, and a second interlayer insulating layer; insulating layer 20b is an inorganic insulating layer; insulating layer 20c is a planarization layer; and insulating layer 20d may be an organic insulating layer. The barrier portion 50 may include insulating layer 20c, insulating layer 20d, and a pixel definition layer 301. In some optional embodiments, the barrier 50 may also include other film layers (metallic or non-metallic film layers).

[0048] The display panel 100 provided in this embodiment includes a touch layer 150, which is located on the side of the first film layer group away from the substrate 110. The touch layer 150 includes touch electrodes 151, which can be disposed in the display area AA for receiving touch signals from the user. Each touch electrode 151 includes a first touch electrode and a second touch electrode. When the first touch electrode is a sensing electrode, the second touch electrode is a driving electrode; when the first touch electrode is a driving electrode, the second touch electrode is a sensing electrode. Touch detection based on the mutual capacitance principle is achieved through the first and second touch electrodes. The first touch electrode includes multiple first electrode blocks connected sequentially in the X direction, and the second touch electrode includes multiple second electrode blocks connected sequentially in the Y direction, wherein the X direction is perpendicular to the Y direction. The touch electrode 151 can be made of a material with good conductivity, including any one or more of the following metallic materials: molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), copper (Cu), and their alloys (e.g., made of any one or more of them), in single or multiple layers. The touch electrode 151 can be electrically connected to the first touch terminal 200 using touch signal lines.

[0049] In the embodiments of this application, depending on the actual design requirements, all touch terminals can be set in the first non-display area NA1, or a portion of the touch terminals can be set in the first non-display area NA1.

[0050] As one possible implementation, all touch terminals are located in the first non-display area NA1, see reference. Figure 2 As shown, this design allows all touch terminals to be placed in the first non-display area NA1, that is, multiple first touch terminals 200 are set in the first non-display area NA1. Touch terminals do not need to be set in other areas of the display panel 100. This can achieve a narrow step in the display panel 100, further increase the proportion of the display area AA in the display panel 100, achieve a high screen ratio, and improve the display effect of the display panel 100.

[0051] As another possible implementation, a portion of the touch terminals is placed in the first non-display area NA1, as shown in the reference. Figure 13As shown. Specifically, the second non-display area NA2 includes a bonding area 104, which is used to bond the flexible circuit board. By bending the bonding area 104 to the non-display surface of the display panel 100, a narrow bezel can be achieved. A portion of the touch terminals are placed between the bonding area 104 and the display area AA, that is, the second touch terminal 201 is placed between the bonding area 104 and the display area AA, and the other portion of the touch terminals are placed in the first non-display area NA1. This design can reduce the design pressure of touch terminals in the second non-display area. In addition, by transferring a portion of the touch terminals to the first non-display area NA1, the number of touch terminals located at the lower step of the display panel 100 is reduced. With the size of the touch terminals remaining unchanged, the lateral length occupied by the touch terminals at the lower step can be reduced, and a narrow lateral step of the display panel 100 can be achieved.

[0052] In the embodiments of this application, the display panel 100 can receive user touch signals using the sensing electrodes in the touch electrode 151. The touch signal line is connected to the touch electrode 151, meaning the touch signal is transmitted using the touch signal line. The first touch terminal 200 can be connected to the touch electrode 151 using the touch signal line 300, as shown in the reference. Figure 3 As shown, the touch signal received by the first touch terminal 200 is transmitted by the touch electrode 151 through the touch signal line 300. Since the first touch terminal 200 can be located in the first non-display area NA1, the touch signal line 300 is at least partially located in the first non-display area NA1 in order to achieve electrical connection with the first touch terminal 200.

[0053] In the embodiments of this application, the first touch terminal 200 disposed in the first non-display area NA1 can be connected to the touch electrode 151 via the touch signal line 300, as shown in the reference. Figure 3 As shown below, a detailed introduction will be provided:

[0054] One possible implementation is to use a first connecting line 410 to connect the touch electrode 151 and the first touch terminal 200, wherein the touch signal line includes the first connecting line 410, see reference. Figure 6 As shown, the first connecting line 410 includes a first segment 411, a second segment 412, and a third segment 413. The first segment 411 is at least partially located in the second non-display area NA2, the second segment 412 is located in the display area AA, and the third segment 413 is located in the first non-display area NA1. The first segment 411 is electrically connected to the touch electrode 151, the second segment 412 connects the first segment 411 and the third segment 413, and the third segment 413 is electrically connected to at least a portion of the first touch terminal 200 in the first non-display area NA1. That is, the touch signal sent by the touch electrode 151 passes through the first segment 411, the second segment 412, and the third segment 413 in sequence to reach the first touch terminal 200.

[0055] In other words, the first connecting line 410 can be connected to the first touch terminal 200 by winding around the display area AA. When winding, it avoids overlapping with the existing wiring to prevent short circuits, and can be designed to break or replace the wire.

[0056] In practical applications, the first touch terminal 200 is usually set in the first film layer group, and the touch electrode 151, touch signal line and first connecting line 410 are all set in the touch layer 150, that is, the first line segment 411, the second line segment 412 and the third line segment 413 can be set in the touch layer 150.

[0057] refer to Figure 4 and Figure 5 The figures shown are a top view and a film structure diagram of a touch layer provided in an embodiment of this application, respectively. Figure 5 It is along Figure 4 The top view of the structure shown is obtained by cross-section along the CC direction. The touch layer 150 includes a touch pattern layer 153 and a touch bridge layer 152. The first electrode block 11 of the first touch electrode, the second electrode block 12 of the second touch electrode, and the first connection portion a2 connecting the adjacent first electrode block 11 are located in the touch pattern layer 153, and the second connection portion b2 connecting the adjacent second electrode block 12 is located in the touch bridge layer 152.

[0058] For details, please refer to Figure 4 and Figure 5 As shown, when routing the second line segment 412, to avoid conflicts with the routing of the current touch layer 150, the second line segment 412 can be placed in the touch graphics layer 153. When the routing of the second line segment 412 in the touch graphics layer 153 needs to avoid the first electrode block 11, the second electrode block 12, or the first connection part a2, the second line segment 412 can be jumpered to the touch bridge layer 152 and connected through the bridge. That is, the second line segment 412 can include the part located in the touch graphics layer 153 and the part located in the touch bridge layer 152.

[0059] A second possible implementation is to use the second connecting line 420 to connect the touch electrode 151 and the first touch terminal 200, see reference. Figure 6 As shown, the touch signal line includes a second connecting line 420, which includes a fourth segment 421. The fourth segment 421 is located in the first non-display area NA1. The first end of the fourth segment 421 is electrically connected to the touch electrode 151, and the second end of the fourth segment 421 is electrically connected to at least a portion of the first touch terminal 200 in the first non-display area NA1. That is, the touch signal sent by the touch electrode 151 reaches the first touch terminal 200 through the fourth segment 421.

[0060] In practical applications, due to the presence of the first non-display area NA1, the horizontal or vertical touch electrode 151 is cut off by the first non-display area NA1. That is, the touch electrode 151 is cut off in the first non-display area NA1 into a first sub-touch electrode 1511 and a second touch sub-electrode 1512. At this time, the connection between the first sub-touch electrode 1511 or the second touch sub-electrode 1512 and the first touch terminal 200 can be achieved in the following way:

[0061] One possible implementation is that the first touch sub-electrode 1511 and the second touch sub-electrode 1512 are each electrically connected to a first touch terminal 200, see reference. Figure 7 As shown.

[0062] A second possible implementation is to connect the first sub-touch electrode 1511 and the second touch sub-electrode 1512 using a third connecting line 430, as shown in the reference. Figure 8 As shown, a wire-wound connection can be made in the first non-display area NA to restore the connection of the severed touch electrode 151. At this time, either the first touch sub-electrode 1511 or the second touch sub-electrode 1512 is electrically connected to a first touch terminal 200.

[0063] In the embodiments of this application, after the touch signal of the touch electrode 151 is transmitted to the first touch terminal 200 using the touch signal line, the first touch terminal 200 can transmit the touch signal to the bonding terminal 700 located on the display panel 100 using the terminal connection line 600 located on the first film layer group. The bonding terminal 700 is used to connect with the driver chip so that the touch signal can be transmitted to the driver chip and the driver chip can drive the display.

[0064] In the embodiments of this application, the first touch terminal 200 transmits touch signals to the bonding terminal 700. The first touch terminal 200 can be electrically connected to a first signal line disposed in the first metal layer 22 or the second metal layer 24 in the driving circuit layer 120. Specifically, the terminal connection line 600 includes a first signal line. That is, the first signal line is connected to the touch signal line via the first touch terminal 200.

[0065] In the embodiments of this application, reference is made to Figure 3 As shown, the display panel also includes a partition 70, which is used to disconnect the metal wire connection between the display area AA and the first non-display area NA1. Specifically, the partition 70 can disconnect the connection of the third metal layer 25 while maintaining the connection between the first metal layer 22 and the second metal layer 24. At this time, the first touch terminal 200 provided in the first non-display area NA1 can transmit touch signals using the first metal layer 22 and the second metal layer 24.

[0066] In the embodiments of this application, reference is made to Figure 3 As shown, the barrier 50 and the cutting line also include multiple first sub-barriers 60. The first touch terminal 200 and the first sub-barrier 60 overlap in their orthographic projection on the display panel 100. In other words, the first touch terminal 200 can be set at the location of the first sub-barrier 60, which can save the setting space of the first touch terminal 200 and also facilitate connection with the metal in the first sub-barrier 60.

[0067] Specifically, along the direction perpendicular to the display panel, the sub-barrier 60 further includes a first metal layer 22, a second metal layer 24, and a third metal layer 25, as shown in the reference. Figure 3 As shown. The third metal layer 25 is disposed around the perforated area 101, as referenced. Figure 9 As shown, for N first touch terminals 200, the third metal layer 25 or the first sub-barrier 60 is divided into at least N parts along the perforated area 100, with each part insulated from the others to prevent connection between the third metal layers 25. In this case, the third metal layer 25 can act as a pad metal to electrically connect the N touch signal lines through the N touch terminals to the corresponding N first signal lines 630 of the second metal layer 22 or the first metal layer 24, as shown in the reference. Figure 10 As shown, Figure 10 For along Figure 9 It is obtained by performing a cross-section in the XX direction.

[0068] The first signal line 630 is located in the non-display area. The first signal line 630 can be wound along the first non-display area NA1 and enter the display area AA to be electrically connected to the metal wire in the display area AA to transmit the touch signal.

[0069] In practical applications, the bonding terminal 700 is typically located in the second non-display area NA2, specifically in the bonding area 104. A terminal connection cable 600 can be used to electrically connect the first touch terminal 200 located in the first non-display area NA1 and the bonding terminal 700. Since the touch signal from the first touch terminal 200 in the first non-display area NA1 needs to be transmitted to the bonding terminal 700 in the bonding area 104, at least a portion of the terminal connection cable 600 is located in the display area AA. (Refer to...) Figure 11 or Figure 12 As shown.

[0070] In the embodiments of this application, the terminal connection line 600 may include a first part 610, a second part 620 and a third part 630. The first part 610 is located in the display area AA, the second part 620 is located in the second non-display area NA2, and the third part 630 is located in the first non-display area NA1. The third part 630 includes a first signal line S1. The second part 620 is electrically connected to the first part 610 and the bonding terminal 700, and the first part 610 is electrically connected to the first touch terminal 200 through the third part 630.

[0071] As one possible implementation, refer to Figure 11 As shown, the length of the first part 610 is greater than the length of the second part 620, meaning that the terminal connection line 600 can be wired by directly passing through the display area AA.

[0072] As another possible implementation, refer to Figure 12 As shown, the length of the first part 610 is less than the length of the second part 620, meaning that the terminal connection line 600 can be wired by partially surrounding the display area AA.

[0073] In practical applications, regardless of the wiring method used, the terminal connection line 600 achieves electrical connection using metal layers located in the first film layer group, such as the first metal layer 22 or the second metal layer 24 of the drive circuit layer 120. When making the electrical connection, the technique of fanout in the display area (FIAA) can be used to avoid increasing the wiring space and reduce the probability of short circuits with existing wiring, thus minimizing the impact of the terminal connection line 600 on existing wiring.

[0074] Specifically, using FIAA techniques, Figure 11 The first part 610 is connected by different metal layers in the first film layer group. For example, the first part 610 is divided into a transverse part and a longitudinal part. The transverse part and the longitudinal part can use any two of the first metal layer 22, the second metal layer 24, the third metal layer 25 and the fourth metal layer M4. For example, the transverse part can use the second metal layer 24 and the longitudinal part can use the third metal layer 25.

[0075] In embodiments of this application, the second non-display area NA2 includes a bonding area 104. Touch terminals can be disposed not only in the first non-display area NA1, but also around the bonding area 104. For example, multiple second touch terminals 201 can be disposed between the display area NA1 and the bonding area 104. (Refer to...) Figure 13 As shown, the touch signal line and the second touch terminal 201 are connected to enable the second touch terminal 201 to receive touch signals.

[0076] The touch signal can be transmitted to the second touch terminal 201 in the following manner:

[0077] As one possible implementation, when the second touch terminal 201 is disposed around the bonding area 104, the touch electrode 151 that is cut off by the first non-display area NA1 can be connected to the first touch terminal 200, and the remaining touch electrodes 151 in the display panel 100 can be connected to the first touch terminal 200 or the second touch terminal 201.

[0078] Specifically, the fourth connecting line 440 can be used to connect the control electrode 151 and the second touch terminal 201, as shown in the reference. Figure 14 As shown, the touch signal sent by the touch electrode 151 reaches the touch terminal 200 via the fourth connecting line 440. The fourth connecting line 440 can be connected to the second touch terminal 201 located around the bonding area 104 by winding around the non-display area. That is, when the first touch terminal 200 is located in the first non-display area NA1 and the second touch terminal 201 is located around the bonding area 104, the contact electrode 151 near the first non-display area NA1 can be connected to the first touch terminal 200 located in the first non-display area NA1, and the contact electrode 151 near the bonding area 104 can be connected to the second touch terminal 201 located around the bonding area 104. This reduces the wiring range of the touch signal line and reduces the difficulty of wiring design. Therefore, the display panel provided in this application embodiment includes: a display area, a first non-display area, and a second non-display area. The display area surrounds the first non-display area, and the second non-display area surrounds the display area, meaning the second non-display area can be a border area. In the direction perpendicular to the plane of the display panel, the display panel includes a substrate, a first film layer group, and a touch layer. The touch layer is disposed on the side of the first film layer group away from the substrate. The touch layer includes multiple touch electrodes, which are disposed in the display area. Touch signal lines are connected to the touch electrodes. The first non-display area is provided with multiple first touch terminals, and the touch signal lines are connected to the first touch electrodes. The terminal is electrically connected, meaning that touch signals can be transmitted using the touch electrodes in the touch layer and transmitted to the first touch terminal located in the first non-display area via the touch signal line. The first non-display area has sufficient design space to accommodate multiple first touch terminals, which can meet various design requirements for touch terminals. Furthermore, placing the touch terminals in the first non-display area can increase the number of touch terminals, and the size of the touch terminals is not limited by narrow steps. This can meet the design requirements of the display panel for narrow steps in multiple directions without affecting the display effect of the display panel.

[0079] This application also provides a display device, including the display panel described in the above embodiments.

[0080] refer to Figure 15This is a schematic diagram of the planar structure of a display device provided in an embodiment of this application. As shown in the figure, the display device 1000 includes a display panel 100, which is the display panel 100 described in any of the above embodiments. The display device 1000 provided in this application embodiment can be other display devices with display functions, such as mobile phones, computers, televisions, and vehicle-mounted display devices; this application embodiment does not specifically limit its capabilities. The display device 1000 provided in this application embodiment has the beneficial effects of the display panel 100 provided in this application embodiment. For details, please refer to the specific description of the display panel in the above embodiments; this application embodiment will not repeat the description here.

[0081] The above description is merely a preferred embodiment of this application. Although this application has disclosed preferred embodiments above, it is not intended to limit this application. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this application using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solutions of this application. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this application without departing from the content of the technical solutions of this application shall still fall within the protection scope of the technical solutions of this application.

Claims

1. A display panel, characterized in that, The display panel includes a display area, a first non-display area, and a second non-display area. The display area surrounds the first non-display area, and the second non-display area surrounds the display area. In a direction perpendicular to the plane of the display panel, the display panel includes a substrate, a first film layer group, and a touch layer. The touch layer is disposed on the side of the first film layer group away from the substrate. The touch layer includes a plurality of touch electrodes, which are disposed in the display area. Touch signal lines are connected to the touch electrodes. The first non-display area is provided with a plurality of first touch terminals, and the touch signal lines are electrically connected to the first touch terminals. The first non-display area includes a punch-hole area, and the first touch terminal is located between the punch-hole area and the display area.

2. The display panel according to claim 1, characterized in that, The display panel is also provided with a barrier wall, which is located in the first non-display area, and the first touch terminal is disposed between the cutting line of the cut-out area and the barrier wall.

3. The display panel according to claim 2, characterized in that, The first film layer group includes a driving circuit layer, the driving circuit layer includes a first metal layer and a second metal layer, and the touch signal line is electrically connected to a first signal line located in the first metal layer or the second metal layer of the driving circuit layer through a first touch terminal.

4. The display panel according to claim 3, characterized in that, The barrier wall and the cutting line are further divided into a first sub-barrier wall, and the first touch terminal and the first sub-barrier wall overlap on the display panel.

5. The display panel according to claim 4, characterized in that, Along the direction perpendicular to the display panel, the sub-wall further includes a first metal layer, a second metal layer, and a third metal layer, wherein the third metal layer is disposed around the perforated area. For N first touch terminals, the third metal layer is divided into at least N parts along the perforated area, and each part is insulated from the others. The third metal layer serves as a pad metal layer to electrically connect the N touch signal lines to the second metal layer or the N first signal lines of the first metal layer through the N first touch terminals.

6. The display panel according to claim 1, characterized in that, The touch signal line is at least partially located in the first non-display area.

7. The display panel according to claim 6, characterized in that, The touch signal line includes a first connecting line, which includes a first segment, a second segment, and a third segment. The first segment is located in the second non-display area, the second segment is located in the display area, and the third segment is located in the first non-display area. The first segment is electrically connected to the touch electrode, the second segment connects the first segment and the third segment, and the third segment is electrically connected to the first touch terminal in the first non-display area.

8. The display panel according to claim 6, characterized in that, The touch signal line includes a second connecting line, the second connecting line includes a fourth segment, the fourth segment is at least partially located in the first non-display area, the first end of the fourth segment is electrically connected to the touch electrode, and the second end of the fourth segment is electrically connected to the first touch terminal in the first non-display area.

9. The display panel according to claim 1, characterized in that, The touch electrode is cut off in the first non-display area into a first touch sub-electrode and a second touch sub-electrode, and each of the first touch sub-electrode and the second touch sub-electrode is electrically connected to one of the first touch terminals.

10. The display panel according to claim 1, characterized in that, The touch electrode is cut into a first touch sub-electrode and a second touch sub-electrode in the first non-display area. Either the first touch sub-electrode or the second touch sub-electrode is electrically connected to a first touch terminal. The first touch sub-electrode and the second touch sub-electrode are connected by a third connecting line in the first non-display area.

11. The display panel according to claim 1, characterized in that, The second non-display area includes a bonding area, and a plurality of second touch terminals are disposed between the display area and the bonding area, and the touch signal line is electrically connected to the second touch terminals.

12. The display panel according to claim 11, characterized in that, The touch electrode cut off in the first non-display area is electrically connected to the first touch terminal, and the remaining touch electrode is partially connected to the first touch terminal and partially connected to the second touch terminal.

13. The display panel according to claim 3, characterized in that, The display panel includes a bonding area, which is provided with bonding terminals. The first touch terminal located in the first non-display area and the bonding terminal located in the bonding area are connected by a terminal connection line. The terminal connection line is at least partially located in the display area and includes the first signal line.

14. The display panel according to claim 13, characterized in that, The terminal connection line includes a first part, a second part, and a third part. The first part is located in the display area, the second part is located in the second non-display area, the second part is electrically connected to the first part and the bonding terminal located in the bonding area, and the third part is located in the first non-display area, and the third part includes a first signal line.

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

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