Display panel and display device

Abstract

The present application provides a display panel and a display device. In the display panel, at least one first touch connecting line is arranged in a display area, and / or at least one first sensing connecting line is arranged in the display area, so that the bezel area occupied by the connecting lines corresponding to touch electrodes and / or sensing electrodes is reduced, and thus achieving a narrow bezel; moreover, the width of the first touch connecting line and / or the width of the first sensing connecting line can be increased, so that the failure of the touch electrodes and / or the sensing electrodes is prevented, thereby improving the yield of the display panel.

Description

Display panel and display device

[0001] This application claims priority to Chinese patent application No. 202410122451.6 filed on January 29, 2024, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0003] OLED (Organic Light-Emitting Diode) displays are widely used due to their advantages, including self-luminescence, wide color gamut, low power consumption, and flexible display capabilities. To reduce thickness, existing OLED displays utilize DOT (Direct On-Cell Touch) technology to create the touch layer. With the development of narrow-bezel technology, existing OLED displays are shrinking the bezel, moving the barrier closer to the display area. This results in less space in the touch layer for touch traces. When installing touch traces, the line width and / or spacing of the touch traces must be reduced, which increases the risk of failures such as disconnection and shorting. Increasing the line width and / or spacing of the touch traces significantly increases the bezel of the display panel, defeating the purpose of achieving a narrow bezel.

[0004] Therefore, existing OLED display devices have the technical problem of being unable to achieve both narrow bezels and reduce the risk of touch wiring failure. SUMMARY OF THE INVENTION

[0005] Embodiments of the present application provide a display panel and a display device to solve the technical problem that existing OLED display devices cannot achieve both narrow bezels and reduce the risk of touch wiring failure.

[0006] To solve the above problems, the technical solutions provided by this application are as follows:

[0007] An embodiment of the present application provides a display panel, comprising a display area and a non-display area provided on at least one side of the display area, wherein the non-display area includes a fan-out area. The display panel comprises:

[0008] substrate;

[0009] a touch layer disposed on one side of the substrate, the touch layer comprising a plurality of insulated touch electrodes, a plurality of sensing electrodes, a first touch connection line, a second touch connection line, a first sensing connection line, and a second sensing connection line, wherein the touch electrodes and the second touch connection line are disposed along a first direction, the first touch connection line is disposed along a second direction, the first touch connection line connects the touch electrodes and the second touch connection line, the touch electrodes are disposed in the display area, and the second touch connection line is disposed in the fan-out area; the sensing electrodes are disposed in the display area along the second direction, the first sensing connection line and the second sensing connection line are disposed along the first direction, the first sensing connection line connects the sensing electrodes and the second sensing connection line, and the second sensing connection line is disposed in the fan-out area;

[0010] Wherein, at least one of the first touch connection lines is arranged in the display area, and / or at least one of the first sensing connection lines is arranged in the display area,

[0011] An included angle between the first direction and the second direction is greater than 0 and less than or equal to 90 degrees.

[0012] At the same time, an embodiment of the present application provides a display device, which includes a display panel, the display panel including a display area and a non-display area provided on at least one side of the display area, the non-display area including a fan-out area, and the display panel including:

[0013] substrate;

[0014] a touch layer disposed on one side of the substrate, the touch layer comprising a plurality of insulated touch electrodes, a plurality of sensing electrodes, a first touch connection line, a second touch connection line, a first sensing connection line, and a second sensing connection line, wherein the touch electrodes and the second touch connection line are disposed along a first direction, the first touch connection line is disposed along a second direction, the first touch connection line connects the touch electrodes and the second touch connection line, the touch electrodes are disposed in the display area, and the second touch connection line is disposed in the fan-out area; the sensing electrodes are disposed in the display area along the second direction, the first sensing connection line and the second sensing connection line are disposed along the first direction, the first sensing connection line connects the sensing electrodes and the second sensing connection line, and the second sensing connection line is disposed in the fan-out area;

[0015] Wherein, at least one of the first touch connection lines is arranged in the display area, and / or at least one of the first sensing connection lines is arranged in the display area,

[0016] An included angle between the first direction and the second direction is greater than 0 and less than or equal to 90 degrees. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings will make the technical solutions and other beneficial effects of the present application apparent.

[0018] FIG. 1 is a first schematic diagram of a conventional OLED display device.

[0019] FIG. 2 is a second schematic diagram of a conventional OLED display device.

[0020] FIG3 is a first schematic diagram of a display panel provided in an embodiment of the present application.

[0021] FIG4 is a second schematic diagram of a display panel provided in an embodiment of the present application.

[0022] FIG5 is a third schematic diagram of a display panel provided in an embodiment of the present application.

[0023] FIG. 6 is an enlarged view of a region of the display panel in FIG. 4 .

[0024] FIG. 7 is a fourth schematic diagram of a display panel provided in an embodiment of the present application.

[0025] FIG. 8 is an enlarged view of a region F of the display panel in FIG. 4 .

[0026] FIG9 is a fifth schematic diagram of a display panel provided in an embodiment of the present application.

[0027] FIG10 is a sixth schematic diagram of a display panel provided in an embodiment of the present application.

[0028] FIG. 11 is an enlarged view of the region M in FIG. 6( a ).

[0029] FIG. 12 is an enlarged view of region N in FIG. 6( a ). Modes for Carrying Out the Invention

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0033] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0034] The disclosure below provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0035] As shown in Figure 1, a conventional OLED display device 1 includes a display area 11 and a non-display area 12. To achieve a narrow-bezel design for the OLED display device 1, conventional OLED display devices employ FIAA (Fanout In AA) technology. Specifically, fanout lines connecting signal lines in the drive circuit are arranged in the display area, thereby reducing the bezel and bringing the retaining wall in the OLED display device 1 closer to the display area 11. Furthermore, to reduce thickness, conventional OLED display devices employ DOT (Direct On Cell Touch) technology to fabricate the touch layer. Specifically, the touch layer includes a touch unit 131 and a sensing unit 132. The touch unit 131 and the sensing unit 132 are connected to the binding terminals via a first touch trace 141 and a second touch trace 142, respectively. When the space of the non-display area 12 of the OLED display device 1 is reduced, the space for setting the touch lines will also be reduced. Therefore, when setting the touch lines, it is necessary to reduce the line width and / or line spacing of the touch lines. It is understandable that reducing the line width and / or line spacing of the touch lines may cause problems such as disconnection and short circuit of the touch lines, while increasing the line width and / or line spacing of the touch lines may increase the border of the OLED display device. Specifically, as shown in Figure 2, Figure 2 (a) is a schematic diagram of the lower left area of ​​the OLED display device, Figure 2 (b) is an enlarged view of area A in Figure 2 (a), and Figure 2 (c) is an enlarged view of area B in Figure 2 (b). As can be seen from Figure 2, an invalid unit 133 is provided between the touch unit 131 and the sensing unit 132. Due to the reduction of the non-display area 12 of the OLED display device 1, the spacing between the lines is smaller, and the width of the touch lines is smaller, which makes it easy for problems such as disconnection and short circuit to occur. Therefore, existing OLED display devices have the technical problem of being unable to achieve both narrow bezels and reduce the risk of touch wiring failure.

[0036] In order to solve the above technical problems, the embodiments of the present application provide a display panel and a display device to solve the above technical problems.

[0037] Figure 3 is a first schematic diagram of a display panel provided in an embodiment of the present application. Figure 4 is a second schematic diagram of a display panel provided in an embodiment of the present application. Figure 5 is a third schematic diagram of a display panel provided in an embodiment of the present application. Figure 6 is an enlarged view of a region of the display panel in Figure 4, wherein (a) in Figure 6 is an enlarged view of region C of the display panel in Figure 4, (b) in Figure 6 is an enlarged view of region D of (a) in Figure 6, and (c) in Figure 6 is an enlarged view of region E of (b) in Figure 6. Figure 7 is a fourth schematic diagram of a display panel provided in an embodiment of the present application. Figure 8 is an enlarged view of region F of the display panel in Figure 4. Figure 9 is a fifth schematic diagram of a display panel provided in an embodiment of the present application. Figure 10 is a sixth schematic diagram of a display panel provided in an embodiment of the present application. Figure 11 is an enlarged view of region M in (a) in Figure 6. Figure 12 is an enlarged view of region N in (a) in Figure 6.

[0038] As shown in Figures 3 to 9, an embodiment of the present application provides a display panel, which includes a display area 21 and a non-display area 22 arranged on at least one side of the display area 21, wherein the non-display area 22 includes a fan-out area 221. The display panel 2 includes a substrate 41 and a touch layer 45; the touch layer 45 is arranged on one side of the substrate 41, and the touch layer 45 includes a plurality of touch electrodes 311, a plurality of sensing electrodes 321, a first touch connection line 312, a second touch connection line 313, a first sensing connection line 322, and a second sensing connection line 323. The touch electrodes 311 and the second touch connection line 313 are arranged along a first direction Y. The first touch connection line 312 is arranged along the second direction X, the first touch connection line 312 connects the touch electrode 311 and the second touch connection line 313, the touch electrode 311 is arranged in the display area 21, the second touch connection line 313 is arranged in the fan-out area 221, the sensing electrode 321 is arranged in the display area 21 along the second direction X, the first sensing connection line 322 and the second sensing connection line 323 are arranged along the first direction Y, the first sensing connection line 322 connects the sensing electrode 321 and the second sensing connection line 323, and the second sensing connection line 323 is arranged in the fan-out area 221;

[0039] At least one of the first touch connection lines 312 is disposed in the display area 21 , and / or at least one of the first sensing connection lines 322 is disposed in the display area 21 .

[0040] An included angle between the first direction Y and the second direction X is greater than 0 and less than or equal to 90 degrees.

[0041] The present application provides a display panel. By disposing at least one first touch connection line in a display area and / or at least one first sensing connection line in the display area, the display panel reduces the border area occupied by the connection lines corresponding to the touch electrodes and / or sensing electrodes, thereby achieving a narrow border. Furthermore, the width of the first touch connection line and / or the first sensing connection line can be increased, thereby preventing failure of the touch electrodes and / or sensing electrodes and improving the yield of the display panel.

[0042] Specifically, as shown in Figure 3, Figure 3 shows that two first touch connection lines 312 are set in the display area, and one first sensing connection line 322 is set in the display area, but the embodiments of the present application are not limited to this. The number of first touch connection lines and / or first sensing connection lines set in the display area is selected differently according to different designs, which is specifically explained in the following embodiments.

[0043] In some embodiments, at least one first touch connection line 312 is disposed in the display area, thereby reducing the width of the lower frame and preventing the touch electrode from failing.

[0044] In some embodiments, at least one first sensing connection line 322 is disposed in the display area, thereby reducing the width of the borders on both sides and preventing the sensing electrodes from failing.

[0045] In some embodiments, at least one first touch connection line 312 is disposed in the display area, and at least one first sensing connection line 322 is disposed in the display area, thereby reducing the width of multiple frames of the display panel and preventing failure of touch electrodes and sensing electrodes.

[0046] Specifically, in Figures 3 to 9, some of the traces may cross or contact each other. It is understandable that in the actual design process, the touch electrode 311, the sensing electrode 321, the first touch connection line 312 provided in the display area, the first sensing connection line 322 provided in the display area, the first virtual electrode 331, the second virtual electrode 332, the third virtual electrode 333 and the fourth virtual electrode 334 are all formed by wires. The adjacent first touch connection lines 312 are insulated by disconnecting the wires at the contact position. Similarly, the adjacent first sensing connection lines 322 are insulated by disconnecting the wires at the contact position. 22. In the areas where the touch electrodes 311 and sensing electrodes 321 contact the dummy electrodes (including the first dummy electrode 331, the second dummy electrode 332, the third dummy electrode 333, and the fourth dummy electrode 334), the touch electrodes 311, the sensing electrodes 321, and the dummy electrodes are all insulated by disconnecting the wires. For example, in FIG7 , the first dummy electrode 331 contacts the touch electrodes 311 and the sensing electrodes 321. However, in an actual design, the first dummy electrode 331 is disconnected from the touch electrodes 311 and the sensing electrodes 321 in the areas where the first dummy electrode 331 contacts the touch electrodes 311 and the sensing electrodes 321. Similarly, for areas where other different structures contact each other, disconnected wires can be used to insulate the electrodes.

[0047] Specifically, at the intersection of the touch electrode 311 and the sensing electrode 321, the touch electrode 311 can be routed to another film layer. Specifically, for example, in FIG. 7 , the touch electrode 311 includes an electrode portion 311 a and a transition portion 311 b. The electrode portion 311 a and the transition portion 311 b are respectively disposed on the second conductive layer 452 and the first conductive layer 451, thereby preventing the touch electrode 311 from contacting the sensing electrode 321 and causing a short circuit.

[0048] Specifically, as shown in Figure 5, the display panel 2 also includes a driving circuit layer 42, a light-emitting functional layer 43 and an encapsulation layer 44. The touch layer 45 is arranged on a side of the encapsulation layer 44 away from the light-emitting functional layer 43. The touch layer 45 includes a first conductive layer 451, a second conductive layer 452 and an insulating layer 453. The sensing electrode 321 is arranged on the second conductive layer 452, the first virtual electrode 331 is arranged on the second conductive layer 452, the electrode portion 311a of the touch electrode 311 is arranged on the second conductive layer 452, and the transition portion 311b of the touch electrode 311 is arranged on the first conductive layer 451.

[0049] Specifically, as shown in Figure 4, the fan-out area 221 includes a first fan-out area 221a and a second fan-out area 221b. The first fan-out area 221a is provided with a second touch connection line 313, and the second fan-out area 221b is provided with a second sensing connection line 323. When all first touch connection lines 312 are set in the display area 21, there are no first touch connection lines 312 in the first fan-out area 221a. When only some of the first touch connection lines 312 are set in the display area 21, some of the first touch connection lines 312 are provided in the first fan-out area 221a.

[0050] Specifically, in some display panels, a section of a line arranged along the second direction X may be provided between the first sensing connection line 322 and the second sensing connection line 323. In this case, this section of the line can be defined as a portion of the second sensing connection line 323. In this case, the second sensing connection line 323 includes a portion arranged along the first direction Y and a portion arranged along the second direction X. Alternatively, this portion can be defined as a third sensing connection line, which connects the first sensing connection line and the second sensing connection line. Specifically, as shown in Figures 3 and 4, it can be seen that the connection lines of some sensing electrodes 321 extend from the left frame area 222 to the left fan-out area, and the connection lines of some sensing electrodes 321 extend from the right frame area 223 to the right fan-out area. The connection lines of some touch electrodes 311 extend to the left fan-out area, and the connection lines of some touch electrodes 311 extend to the right fan-out area. Figure 6 illustrates the design of the touch electrodes 311 and their connection lines in the left fan-out area and the display area. It can be understood that the design of the touch electrodes 311 and their connection lines in the right fan-out area and the display area can refer to the design of the touch electrodes 311 and their connection lines in the left fan-out area and the display area.

[0051] In some embodiments, as shown in FIG6 and FIG7 , a first dummy electrode 331 is provided between the first touch connection line 312 and the sensing electrode 321. The first dummy electrode 331 is insulated from the first touch connection line 312 and the sensing electrode 321. In a first direction Y, a width L2 of the first dummy electrode 331 between the first touch connection line 312 and the sensing electrode 321 away from the fan-out area 221 is smaller than a width L1 of the first dummy electrode 331 between the first touch connection line 312 and the sensing electrode 321 near the fan-out area 221. By ensuring that the width L2 of the first dummy electrode 331 between the first touch connection line 312 and the sensing electrode 321 away from the fan-out area 221 is smaller than the width L1 of the first dummy electrode 331 between the first touch connection line 312 and the sensing electrode 321 near the fan-out area 221, the first dummy electrode can be used to form the first touch connection line, eliminating the need to occupy additional space on the display panel and reducing the bezel of the display panel.

[0052] Specifically, as shown in Figures 6 and 7, it can be seen that the first touch connection line 312 connected to the leftmost touch electrode 311 is closer to the fan-out area 221 than the first touch connection line 312 connected to the right touch electrode 311. When setting the first touch connection line 312, the first touch connection line 312 can be formed using a first dummy electrode, so that the portion of the first dummy electrode near the left frame area or the right frame area forms a first touch connection line 312 connected to one touch electrode 311, and the portion of the first dummy electrode near the middle area of ​​the display area forms a plurality of first touch connection lines 312 connected to the touch electrodes 311. In this way, the width L2 of the first dummy electrode 331 between the first touch connection line 312 away from the fan-out area 221 and the sensing electrode 321 is smaller than the width L1 of the first dummy electrode 331 between the first touch connection line 312 near the fan-out area 221 and the sensing electrode 321. And because the present application uses the first virtual electrode 331 to form the first touch connection line 312 connected to the touch electrode, there is no need to reduce the width or line spacing of other lines in the display panel, and it will not affect other lines. The width of the lower frame occupied by the touch electrode and its connection line can be reduced, thereby reducing the lower frame, and the line width of the first touch connection line 312 in the display area can be increased to avoid the first touch connection line 312 from being broken.

[0053] Specifically, as shown in Figure 6, which illustrates the positional relationship between a sensing electrode 321 and multiple touch electrodes 311, a second dummy electrode 332 is positioned between the sensing electrode 321 and the touch electrode 311, and a fourth dummy electrode 334 is positioned within the sensing electrode 321. The touch electrode 311 includes an electrode portion 311a and a transition portion 311b. The electrode portion 311a includes a trunk portion 51 and a branch portion 52. As shown in Figure 10, the specific structures of the touch electrode 311, the sensing electrode 321, and the second dummy electrode 332 are shown. The touch electrode 311, the sensing electrode 321, and the second dummy electrode 332 are each formed by a metal mesh formed by a first conductive wire 61 and a second conductive wire 62. The touch electrode 311, the sensing electrode 321, and the second dummy electrode 332 are insulated from each other by breaks 63 in the metal mesh. Similarly, other structures formed using a metal mesh, such as the first touch connection line 312 and the first sensing connection line 322, can also be formed by the first conductive wire 61 and the second conductive wire 62.

[0054] In some embodiments, no first dummy electrode 331 is disposed between at least one of the first touch connection lines 312 and the sensing electrode 321 . In the first direction Y, the width of a portion of the sensing electrode 321 corresponding to one of the first touch connection lines 312 is smaller than the width of a portion of the sensing electrode 321 corresponding to another of the first touch connection lines 312 .

[0055] Specifically, by eliminating the first dummy electrode between the first touch connection line and the sensing electrode, the first touch connection line can be formed by cutting all portions of the first dummy electrode. In this case, the widths of the various portions of the sensing electrode can be made equal. Furthermore, when cutting the first dummy electrode to form the first touch connection line, if the first dummy electrode is insufficient to form a first touch connection line or insufficient to form multiple first touch connection lines, the sensing electrode can be cut to form the first touch connection line. This ensures that the width of the portion of the sensing electrode 321 corresponding to one of the first touch connection lines 312 is smaller than the width of the portion of the sensing electrode 321 corresponding to another of the first touch connection lines 312.

[0056] Specifically, the embodiments of the present application describe that some connecting lines are formed by cutting or by using the first virtual electrode, but it is understandable that in actual design, touch electrodes, sensing electrodes, virtual electrodes, touch connecting lines and sensing connecting lines can be formed by a mask plate without the need for multiple processes.

[0057] In some embodiments, as shown in FIG7 , a second dummy electrode 332 is provided between the touch electrode 311 and the sensing electrode 321. The width (not shown) of the first dummy electrode 331 between the first touch connection line 312 and the sensing electrode 321 is equal to the width (not shown) of the second dummy electrode 332 between the touch electrode 311 and the sensing electrode 321. By ensuring that the width of the first dummy electrode 331 between the first touch connection line 312 and the sensing electrode 321 is equal to the width of the second dummy electrode 332 between the touch electrode 311 and the sensing electrode 321, the original width of the first dummy electrode can be fully utilized to form the first touch connection line, thereby reducing the space occupied by the touch electrode connection line in the frame area and increasing the width of the first touch connection line, further preventing the first touch connection line from being disconnected.

[0058] Specifically, in existing OLED display devices, the width of the second virtual electrode between the touch electrode and the sensing electrode is smaller than the width of the first virtual electrode between the first touch connection line and the sensing electrode. The present application reduces the width of the first virtual electrode, so that part of the wiring located in the display area becomes the first touch connection line. This makes the width of the second virtual electrode between the touch electrode and the sensing electrode equal to the width of the first virtual electrode between the first touch connection line and the sensing electrode. Without occupying additional space, a narrow bezel can be achieved while preventing the touch electrode connection line from breaking.

[0059] In some embodiments, as shown in FIG7 , the plurality of first touch connection lines 312 disposed in the display area 21 are disconnected from each other, and no first dummy electrode 331 is disposed between two adjacent first touch connection lines 312. By not disposing the first dummy electrode 331 between two first touch connection lines 312, the space occupied by the first touch connection lines 312 in the display area is reduced, and the line width of the first touch connection lines 312 can be increased. Furthermore, the first touch connection lines 312 of the plurality of touch electrodes are disconnected from each other, thereby preventing signal interference.

[0060] In some embodiments, as shown in Figures 3 to 12, the touch layer 45 includes a first conductive layer 451 and a second conductive layer 452. The first conductive layer 451 is disposed between the second conductive layer 452 and the substrate 41. The touch electrodes 311 and the sensing electrodes 321 are disposed in the second conductive layer 452. A portion of the first touch connection line 312 is disposed in the first conductive layer 451, and a portion of the first touch connection line 312 is disposed in the second conductive layer 452. The two portions of the first touch connection line 312 disposed in the first conductive layer 451 and the second conductive layer 452 are connected. By disposing the two portions of the first touch connection line 312 in the first conductive layer and the second conductive layer, respectively, the length of the first touch connection line 312 can be prevented from being excessive, which could lead to electrostatic damage caused by static electricity accumulation, thereby improving the yield of the display panel.

[0061] Specifically, since the first touch connection line 312 extends from the left side of the display panel to the fan-out area, the length of the first touch connection line 312 is relatively large. In order to avoid static electricity accumulation in the first touch connection line 312 during the extension process, the part located on the second conductive layer can be transferred to the part on the first conductive layer, thereby avoiding the problem of electrostatic damage and improving the yield of the display panel.

[0062] Specifically, as shown in (a), (b) and (c) of FIG6 , it can be seen that the first touch connection line 312 includes a first first touch connection line 312a, a second first touch connection line 312b and a third first touch connection line 312c extending from the edge area of ​​the display panel to the middle area of ​​the display panel, and the second touch connection line 313 includes a first second touch connection line 313a connected to the first first touch connection line 312a, a second second touch connection line 313b connected to the second first touch connection line 312b, a third second touch connection line 313c connected to the third first touch connection line 312c and a fourth second touch connection line 313d connected to the fourth first touch connection line. As shown in FIG11 and FIG12 , it is possible to The first touch connection line 312a includes a first sub-portion 711 and a second sub-portion 712, and the first sub-portion 711 and the second sub-portion 712 are connected, and / or the second first touch connection line 312b includes a third sub-portion 713 and a fourth sub-portion 714, and the third sub-portion 713 and the fourth sub-portion 714 are connected, and / or the third first touch connection line 312c includes a fifth sub-portion 715 and a sixth sub-portion 716, and the fifth sub-portion 715 and the sixth sub-portion 716 are connected. The first sub-portion 711, the third sub-portion 713, and the fifth sub-portion 715 are arranged in the second conductive layer, and the second sub-portion 712, the fourth sub-portion 714, and the sixth sub-portion 716 are arranged in the first conductive layer. This achieves the effect of replacing each first touch connection line and avoids the problem of static electricity accumulation in each first touch connection line causing static electricity damage.

[0063] Specifically, as shown in Figures 11 and 12 , for the rounded corner design of the display panel, the touch electrode is connected to the first touch connection line via a line segment, which can be a single wire. Specifically, the second sub-section 712, the fourth sub-section 714, and the sixth sub-section 716 are spaced apart in the second direction, so that the locations where the first touch connection lines change are spaced apart.

[0064] In some embodiments, as shown in Figures 5 and 6, the touch electrode 311 includes an electrode portion 311a and a transition portion 311b. The electrode portion 311a is disposed on the second conductive layer 452, and the transition portion 311b is disposed on the first conductive layer 451. The electrode portion 311a is connected to the transition portion 311b. The electrode portion 311a includes a trunk portion 51 and branch portions 52, and the trunk portion 51 is connected to the branch portions 52. By including the trunk portion and branch portions, the electrode portion area can be increased, thereby improving touch sensitivity.

[0065] In some embodiments, as shown in Figures 5 and 6, the second touch connection line 313 is disposed in the second conductive layer 452, and the portion of the first touch connection line 312 disposed in the second conductive layer 452 is connected to the second touch connection line 313. By disposing both the second touch connection line and the first touch connection line in the second conductive layer, the first touch connection line, the second touch connection line, and the electrode portion of the touch electrode can be simultaneously formed in a single process, reducing the number of process steps.

[0066] In some embodiments, as shown in Figures 6 and 10, the touch electrodes 311 and the first touch connection lines 312 disposed in the display area 21 are formed from a metal mesh. The metal mesh is composed of multiple first conductive lines 61 and multiple second conductive lines 62. The multiple first conductive lines 61 and multiple second conductive lines 62 intersect to form multiple meshes corresponding to at least one sub-pixel. The second touch connection lines 313 are formed from a single conductive line. By forming the first touch connection lines from a metal mesh, the first dummy electrodes can be cut to form the first touch connection lines, reducing the bezel of the display panel without occupying additional space in the display area.

[0067] Specifically, the first touch connection line 312 disposed in the fan-out area can be a single conductive line to reduce the frame.

[0068] In some embodiments, as shown in FIG7 , the width L3 of the first touch connection line 312 is greater than or equal to the width L4 of the second touch connection line 313. Specifically, compared to conventional OLED display devices, which reduce the width of the touch electrode connection lines to achieve a narrow bezel, the present embodiment of the present application increases the width of the first touch connection line 312 by disposing the first touch connection line 312 in the display area, making the width of the first touch connection line 312 greater than or equal to the width of the second touch connection line 313, thereby preventing disconnection of the touch electrode connection lines. Furthermore, the increase in the width of the first touch connection line does not cause changes in other signal lines in the display panel.

[0069] In some embodiments, as shown in Figures 3, 4, and 6, the non-display area 22 includes a left border area 222 and a right border area 223 arranged on both sides of the display area 21. In the second direction X, the first touch connection line 312 connected to the three touch electrodes 311 near the left border area 222 is arranged in the display area 21, and the first touch connection line 312 connected to the three touch electrodes 311 near the right border area 223 is arranged in the display area 21.

[0070] Specifically, for a display panel with 17 touch electrodes, the first touch connection lines for the three touch electrodes on the left side extend from the left side of the first fan-out area 221a to the first fan-out area 221a on the left, and the first touch connection lines for the three touch electrodes on the right side extend from the right side of the first fan-out area 221a to the first fan-out area 221a on the right. Therefore, the first touch connection lines 312 connecting the three touch electrodes in the left frame area can be set in the display area, and the first touch connection lines 312 connecting the three touch electrodes in the right frame area can be set in the display area, thereby reducing the bezel. However, the present application is not limited to this embodiment, and other first touch connection lines can also be set in the display area.

[0071] Specifically, as shown in FIG6 , it can be seen that the second sensing connection line is disposed on the left side of the second touch connection line.

[0072] Specifically, the above embodiment is illustrated by taking the design of some touch electrodes, first touch connection lines and second touch connection lines as an example. It can be understood that due to the limitation of the line width of the first virtual electrode, in actual design, it is difficult to set the first touch connection lines of all touch electrodes in the display area, but the embodiments of the present application are not limited to this. When the line width of the first virtual electrode is large, or reducing the line width of the sensing electrode will not have a significant impact on the touch function, the first touch connection lines of all touch electrodes can be set in the display area, thereby reducing the border of the display panel and reducing the risk of touch electrode failure.

[0073] In some embodiments, as shown in Figures 3, 4, 8, and 9, the non-display area 22 includes a left border area 222 and a right border area 223 disposed on either side of the display area 21. Some of the first sensing connection lines 322 are disposed in the right border area 223, and some of the first sensing connection lines 322 are disposed in the display area 21. In a first direction Y, the first sensing connection lines 322 disposed in the display area 21 are disposed on a side of the sensing electrodes 321 away from the first sensing connection lines 322 disposed in the right border area 223. By disposing the first sensing connection lines in the display area on a side of the sensing electrodes away from the first sensing connection lines in the right border area, interference between the first sensing connection lines and the sensing electrodes can be avoided. Furthermore, by disposing the first sensing connection lines within the display area, the border of the display panel can be reduced.

[0074] Specifically, the embodiment of the present application is described by taking the example of setting the first sensing connection lines connected to some of the sensing electrodes in the display area. It is understandable that due to the length limitation of the third virtual electrode, the space available for setting the first sensing connection lines in the display area is relatively small, and using metal traces in the areas corresponding to some of the sensing electrodes to form the first sensing connection lines will result in poor touch performance. Therefore, only the first sensing connection lines connected to some of the sensing electrodes are set in the display area. However, the embodiment of the present application is not limited to this. When the length of the first virtual electrode is relatively long and there is a large space for setting the first sensing connection lines in the display area, the first sensing connection lines of all the sensing electrodes can be set in the display area.

[0075] Specifically, it can be understood that the sensing electrodes near the upper border area 224 need to pass through the area corresponding to the sensing electrodes near the fan-out area 221. Therefore, the sensing electrodes near the upper border area 224 can be designed to reduce the left border. For the sensing electrodes near the fan-out area 221, if the connecting lines of the sensing electrodes are set in the display area, it will result in poor touch effect. Therefore, only the sensing electrodes near the upper border area 224 can be designed. However, the embodiments of the present application are not limited to this. When the impact on the touch effect is small, the connecting lines of the sensing electrodes near the fan-out area 221 can also be set in the display area to reduce the border.

[0076] In some embodiments, as shown in Figures 8 and 9, a third dummy electrode 333 is provided on a side of the sensing electrode 321 close to the left border area 222. In the second direction X, the third dummy electrode 333 is provided between the first sensing connection line 322 and part of the sensing electrodes 321, and the third dummy electrode 333 is not provided between the first sensing connection line 322 and part of the sensing electrodes 321.

[0077] Specifically, it can be understood that a virtual electrode is provided between two adjacent rows of sensing electrodes, and a virtual electrode is provided between each sensing electrode and the touch electrode. Since the touch electrodes are arranged along the first direction, the virtual electrode located between the two rows of sensing electrodes is also located between the sensing electrodes and the touch electrodes. Therefore, this application defines the virtual electrode located between two electrodes as a second virtual electrode, and defines the virtual electrode located between two sensing electrodes as a third virtual electrode.

[0078] Specifically, when setting the first sensing connection line, due to the inconsistent lengths of each sensing electrode, a third dummy electrode may or may not be present between the sensing electrode and the edge of the display panel. Therefore, when the first sensing connection line is set in the display area, a third dummy electrode may be provided between the first sensing connection line and some sensing electrodes, while a third dummy electrode may not be provided between the first sensing connection line and some sensing electrodes. However, embodiments of the present application are not limited thereto. A third dummy electrode may not be provided between a first sensing connection line connected to a sensing electrode and any other sensing electrodes, or a third dummy electrode may be provided between a first sensing connection line connected to a sensing electrode and any other sensing electrodes.

[0079] In some embodiments, as shown in FIG. 8 , in the second direction X, two first sensing connection lines 322 close to the display area are disposed in the display area 21 .

[0080] Specifically, as shown in FIG8 , FIG8 shows the design of the left area of ​​the display panel. It can be seen that some of the first sensing connection lines 322 in the display panel are arranged in the left border area 222, and some of the first sensing connection lines 322 are arranged in the display area 21. In the first direction Y, on the left side of the display panel, the first sensing connection lines 322 connected to the upper sensing electrodes 321 are farther away from the display area than the first sensing connection lines 322 connected to the lower sensing electrodes 321. Therefore, the first sensing connection lines 322 close to the display area can be arranged in the display area.

[0081] Specifically, for example, if the sensing electrodes include thirty-eight rows, the first sensing connection lines connecting the first to nineteenth rows of sensing electrodes are arranged on the left side of the display panel, and the first sensing connection lines connecting the twentieth to thirty-eighth rows of sensing electrodes are arranged on the right side of the display panel. Then, the first sensing connection lines connecting the eighteenth and nineteenth rows of sensing electrodes can be arranged in the display area to reduce the bezel. As shown in FIG8 , the first sensing connection lines 322 include the eighteenth and nineteenth first sensing connection lines 322a and 322b.

[0082] In some embodiments, as shown in Figures 8 and 10 , the sensing electrodes 321 and the first sensing connection lines 322 disposed in the display area 21 are formed from a metal mesh comprised of a plurality of first conductive lines 61 and a plurality of second conductive lines 62. The plurality of first conductive lines 61 and the plurality of second conductive lines 62 intersect to form a plurality of meshes corresponding to at least one sub-pixel. The second sensing connection lines 323 are formed from a single conductive line. By forming the first sensing connection lines from a metal mesh, third dummy electrodes and / or sensing electrodes can be cut to form the first sensing connection lines, reducing the bezel of the display panel without occupying additional space in the display area.

[0083] Specifically, the first sensing connection line 322 provided in the fan-out region can be a single conductor to reduce the bezel. In some embodiments, no third dummy electrode is provided between two adjacent first sensing connection lines. This arrangement reduces the space occupied by the first sensing connection lines in the display area and increases the line width of the first sensing connection lines. Furthermore, the first sensing connection lines connecting multiple sensing electrodes are disconnected to avoid signal interference.

[0084] In some embodiments, as shown in FIG9 , the width L5 of the first sensing connection line 322 disposed in the display area 21 is greater than or equal to the width L7 of the first sensing connection line 322 disposed in the right frame area 223, and the width L5 of the first sensing connection line 322 disposed in the display area 21 is greater than or equal to the width L6 of the second sensing connection line 323. By making the width L5 of the first sensing connection line 322 disposed in the display area 21 greater than or equal to the width L7 of the first sensing connection line 322 disposed in the right frame area 223, and making the width L5 of the first sensing connection line 322 disposed in the display area 21 greater than or equal to the width L6 of the second sensing connection line 323, the first sensing connection line is wider when the width is set, thereby preventing the problem of disconnection and failure of the first sensing connection line.

[0085] Specifically, when forming the first sensing connection line, the portion originally used to form the third virtual electrode can be used to form the first sensing connection line. In this way, when forming the first sensing connection line, no additional space in the display area is occupied, and the width of the first sensing connection line can be increased to avoid disconnection of the first sensing connection line.

[0086] The above embodiments respectively describe the display panel from various aspects of the design of the touch electrode, the sensing electrode, the first touch connection line, the second touch connection line, the first sensing connection line, and the second sensing connection line. It can be understood that when there is no conflict between the various embodiments, the various embodiments can be combined to achieve better technical effects. For example, the width of the first touch connection line is greater than or equal to the width of the second touch connection line, and the width of the first sensing connection line set in the display area is greater than or equal to the width of the first sensing connection line set in the right frame area, and the width of the first sensing connection line set in the display area is greater than or equal to the width of the second sensing connection line.

[0087] At the same time, an embodiment of the present application provides a display device, which includes the display panel as described in any of the above embodiments.

[0088] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0089] The above is a detailed introduction to a display panel and a display device provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel comprising a display area and a non-display area disposed on at least one side of the display area, wherein the non-display area includes a fan-out area, the display panel comprising: substrate; a touch layer disposed on one side of the substrate, the touch layer comprising a plurality of insulated touch electrodes, a plurality of sensing electrodes, a first touch connection line, a second touch connection line, a first sensing connection line, and a second sensing connection line, wherein the touch electrodes and the second touch connection line are disposed along a first direction, the first touch connection line is disposed along a second direction, the first touch connection line connects the touch electrodes and the second touch connection line, the touch electrodes are disposed in the display area, and the second touch connection line is disposed in the fan-out area; the sensing electrodes are disposed in the display area along the second direction, the first sensing connection line and the second sensing connection line are disposed along the first direction, the first sensing connection line connects the sensing electrodes and the second sensing connection line, and the second sensing connection line is disposed in the fan-out area; Wherein, at least one of the first touch connection lines is arranged in the display area, and / or at least one of the first sensing connection lines is arranged in the display area, An included angle between the first direction and the second direction is greater than 0 and less than or equal to 90 degrees.

2. The display panel according to claim 1, wherein: A first dummy electrode is provided between the first touch connection line and the sensing electrode. The first dummy electrode is insulated from the first touch connection line and the sensing electrode. In a first direction, a width of the first dummy electrode between the first touch connection line away from the fan-out region and the sensing electrode is smaller than a width of the first dummy electrode between the first touch connection line and the sensing electrode close to the fan-out region.

3. The display panel according to claim 2, wherein: No first dummy electrode is provided between at least one of the first touch connection lines and the sensing electrode, and in a first direction, a width of a portion of the sensing electrode corresponding to one of the first touch connection lines is smaller than a width of a portion of the sensing electrode corresponding to another of the first touch connection lines.

4. The display panel according to claim 2, wherein: A second virtual electrode is provided between the touch electrode and the sensing electrode. The width of the first virtual electrode between the first touch connection line and the sensing electrode is equal to the width of the second virtual electrode between the touch electrode and the sensing electrode.

5. The display panel according to claim 2, wherein: A plurality of first touch connection lines disposed in the display area are disconnected, and no first dummy electrode is disposed between two adjacent first touch connection lines. The display panel according to claim 1 , wherein: The touch layer includes a first conductive layer and a second conductive layer, the first conductive layer is arranged between the second conductive layer and the substrate, the touch electrode and the sensing electrode are arranged in the second conductive layer, a portion of the first touch connection line is arranged in the first conductive layer, a portion of the first touch connection line is arranged in the second conductive layer, and two portions of the first touch connection line respectively arranged in the first conductive layer and the second conductive layer are connected.

7. The display panel according to claim 6, wherein: The touch electrode includes an electrode portion and a transition portion, the electrode portion is arranged on the second conductive layer, the transition portion is arranged on the first conductive layer, the electrode portion is connected to the transition portion, and the electrode portion includes a main portion and a branch portion, the main portion and the branch portion are connected.

8. The display panel according to claim 6, wherein: The second touch connection line is disposed in the second conductive layer, and a portion of the first touch connection line disposed in the second conductive layer is connected to the second touch connection line.

9. The display panel according to claim 1, wherein: The touch electrode and the first touch connection line arranged in the display area are composed of a metal grid, and the metal grid is composed of multiple first wires and multiple second wires. The multiple first wires and the multiple second wires intersect to form multiple meshes corresponding to at least one sub-pixel, and the second touch connection line is formed by a single wire.

10. The display panel according to claim 1, wherein: The width of the first touch connection line is greater than or equal to the width of the second touch connection line.

11. The display panel according to claim 1, wherein: The non-display area includes a left frame area and a right frame area arranged on both sides of the display area. In the second direction, the first touch connection line connected to the three touch electrodes close to the left frame area is arranged in the display area, and the first touch connection line connected to the three touch electrodes close to the right frame area is arranged in the display area.

12. The display panel according to claim 1, wherein: The non-display area includes a left frame area and a right frame area arranged on both sides of the display area, part of the first sensing connection lines are arranged in the right frame area, and part of the first sensing connection lines are arranged in the display area. In a first direction, the first sensing connection lines arranged in the display area are arranged on a side of the sensing electrode away from the first sensing connection lines arranged in the right frame area.

13. The display panel according to claim 12, wherein: A third virtual electrode is provided on a side of the sensing electrode close to the left frame area. In the second direction, the third virtual electrode is provided between the first sensing connection line and some of the sensing electrodes, and the third virtual electrode is not provided between the first sensing connection line and some of the sensing electrodes.

14. The display panel according to claim 12, wherein: The sensing electrode and the first sensing connection line arranged in the display area are formed by a metal grid, which is composed of a plurality of first conductive lines and a plurality of second conductive lines. The plurality of first conductive lines and the plurality of second conductive lines intersect to form a plurality of meshes corresponding to at least one sub-pixel. The second sensing connection line is formed by a single conductive line.

15. The display panel according to claim 12, wherein: The width of the first sensing connection line disposed in the display area is greater than or equal to the width of the first sensing connection line disposed in the right frame area, and the width of the first sensing connection line disposed in the display area is greater than or equal to the width of the second sensing connection line.

16. A display device comprising a display panel, the display panel comprising a display area and a non-display area disposed on at least one side of the display area, the non-display area including a fan-out area, the display panel comprising: substrate; a touch layer disposed on one side of the substrate, the touch layer comprising a plurality of insulated touch electrodes, a plurality of sensing electrodes, a first touch connection line, a second touch connection line, a first sensing connection line, and a second sensing connection line, wherein the touch electrodes and the second touch connection line are disposed along a first direction, the first touch connection line is disposed along a second direction, the first touch connection line connects the touch electrodes and the second touch connection line, the touch electrodes are disposed in the display area, and the second touch connection line is disposed in the fan-out area; the sensing electrodes are disposed in the display area along the second direction, the first sensing connection line and the second sensing connection line are disposed along the first direction, the first sensing connection line connects the sensing electrodes and the second sensing connection line, and the second sensing connection line is disposed in the fan-out area; Wherein, at least one of the first touch connection lines is arranged in the display area, and / or at least one of the first sensing connection lines is arranged in the display area, An included angle between the first direction and the second direction is greater than 0 and less than or equal to 90 degrees.

17. The display device according to claim 16, wherein: A first dummy electrode is provided between the first touch connection line and the sensing electrode. The first dummy electrode is insulated from the first touch connection line and the sensing electrode. In a first direction, a width of the first dummy electrode between the first touch connection line away from the fan-out region and the sensing electrode is smaller than a width of the first dummy electrode between the first touch connection line and the sensing electrode close to the fan-out region.

18. The display device according to claim 17, wherein: No first dummy electrode is provided between at least one of the first touch connection lines and the sensing electrode, and in a first direction, a width of a portion of the sensing electrode corresponding to one of the first touch connection lines is smaller than a width of a portion of the sensing electrode corresponding to another of the first touch connection lines.

19. The display device according to claim 17, wherein: A second virtual electrode is provided between the touch electrode and the sensing electrode. The width of the first virtual electrode between the first touch connection line and the sensing electrode is equal to the width of the second virtual electrode between the touch electrode and the sensing electrode.

20. The display device according to claim 17, wherein A plurality of first touch connection lines disposed in the display area are disconnected, and no first dummy electrode is disposed between two adjacent first touch connection lines.

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