Display panel and display apparatus

Abstract

Provided in the embodiments of the present application are a display panel and a display apparatus. The display panel has a display area and a non-display area arranged surrounding at least part of the display area. The display panel comprises: a first touch-control electrode, which is located in the display area; a second touch-control electrode, which is located in the display area and comprises a plurality of second touch-control electrode blocks and a second touch-control connecting line used for connecting at least two second touch-control electrode blocks; and a first touch-control driving line, which is located in the non-display area and is electrically connected to at least one first touch-control electrode, wherein a first shielding line is arranged on the side of the first touch-control driving line that faces the display area, and the first shielding line is located between electrodes of the second touch-control connecting line and the first touch-control driving line. By means of adding a first shielding line between a second touch-control connecting line and a first touch-control driving line, the present application can ameliorate a coupling problem between the second touch-control connecting line and the first touch-control driving line, thereby improving the touch-control sensitivity of a display panel.

Description

Display panel and display device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese Patent Application No. 202410394343.4, filed on April 1, 2024, entitled “Display Panel and Display Device,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the technical field of display devices, and in particular to a display panel, a display device, and a control method. Background Art

[0004] With the continuous development of display technology, people's requirements for display panels are becoming increasingly higher. Currently, display panels in mobile terminals often have touch functions. Touch components are integrated into the display panel by means of separately placing touch components on the light-emitting layer. However, the touch components in current display panels have the problem of touch insensitivity.

[0005] Summary of the Invention

[0006] Embodiments of the present application provide a display panel and a display device, aiming to improve the sensitivity of the touch function of the display panel.

[0007] An embodiment of the first aspect of the present application provides a display panel, comprising: a display panel having a display area and a non-display area arranged around at least a portion of the display area, the display panel comprising: a first touch electrode, located in the display area; a second touch electrode, located in the display area and comprising a plurality of second touch electrode blocks and a second touch connection line for connecting at least two second touch electrode blocks; a first touch drive line, located in the non-display area and electrically connected to at least one first touch electrode, wherein a first shielding line is provided on a side of the first touch drive line facing the display area, and the first shielding line is located between the second touch connection line electrode and the first touch drive line.

[0008] An embodiment of the second aspect of the present application further provides a display device, comprising a display panel according to any one of the above-mentioned embodiments of the first aspect.

[0009] In the display panel provided in an embodiment of the present application, the display panel includes a first touch electrode, a second touch electrode, and a first touch drive line. The display area of ​​the display panel is used to set a light-emitting unit, etc. to realize the light-emitting display function of the display panel. The second touch electrode includes a second touch electrode block and a second touch connection line, and the second touch connection line is used to connect adjacent second touch electrode blocks to expand the distribution area of ​​the same second touch electrode. The first touch drive line connects the first touch electrode to transmit a signal to the first touch electrode, and the second touch connection line is used to transmit a signal line for the second touch electrode. The first touch drive line and the second touch connection line are used to transmit different signals. There may be coupling between the first touch drive line and the second touch connection line, which may result in a larger channel capacitance of the second touch electrode in the row, resulting in poor capacitance uniformity of multiple second touch electrodes in the display area, affecting the touch sensitivity of the display panel. The embodiment of the present application can improve the coupling problem between the second touch connection line and the first touch drive line by adding a first shielding line between the second touch connection line and the first touch drive line, thereby improving the touch sensitivity of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features.

[0011] FIG1 is a schematic structural diagram of a display panel provided by the related art.

[0012] FIG2 is a schematic structural diagram of a display panel provided in an embodiment of the present application;

[0013] FIG3 is a schematic diagram of a partially enlarged structure of a point P in FIG2 in an example;

[0014] FIG4 is a schematic diagram of a partially enlarged structure of a point P in FIG2 in another example;

[0015] FIG5 is a schematic diagram of a partially enlarged structure of point P in FIG2 in another example;

[0016] FIG6 is a cross-sectional view of a point AA in FIG5 in an example;

[0017] FIG7 is a cross-sectional view of a point AA in FIG5 in another example;

[0018] FIG8 is a cross-sectional view of a point AA in FIG5 in another example;

[0019] FIG9 is a schematic diagram of a partially enlarged structure of a point P in FIG2 in another example;

[0020] FIG10 is a cross-sectional view of a point BB in FIG9 in an example;

[0021] FIG11 is a cross-sectional view of a section CC in FIG9 in an example;

[0022] FIG12 is a schematic structural diagram of a display device provided in an embodiment of the present application.

[0023] Explanation of the accompanying reference numerals: 10, display panel; 100, first touch electrode; 110, hollow area; 101, first touch branch; 102, second touch branch; 200, second touch electrode; 210, second touch electrode block; 211, main electrode block; 212, floating electrode block; 220, second touch connection line; 201, first branch electrode block; 202, second branch electrode block; 300, first touch drive line; 400, first shielding line; 500, second shielding line; 600, connection line; 700, bridge portion; AA, display area; NA, non-display area; TA, touch area; X, first direction; Y, second direction. DETAILED DESCRIPTION

[0024] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are set forth in order to provide a comprehensive understanding of the present application. However, it will be apparent to those skilled in the art that the present application can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least some of the well-known structures and technologies are not shown in order to avoid unnecessary ambiguity in the present application; and, for clarity, the sizes of some structures may be exaggerated. In addition, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0025] In the description of this application, it should be noted that, unless otherwise specified, "plurality" means more than two; terms such as "upper," "lower," "left," "right," "inner," and "outer" indicating directions or positional relationships are merely for the purpose of facilitating the description of this application and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting this application. Furthermore, terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the embodiments of this application. In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0027] In the display panel provided by the related art, as shown in FIG1 , the display panel includes a touch function layer, the touch function layer includes a first touch electrode 100 ′ and a second touch electrode 200 ′, a plurality of first touch electrodes 100 ′ and a plurality of second touch electrodes 200 ′ are distributed in rows and columns along a first direction X and a second direction Y, and the plurality of first touch electrodes 100 ′ in the same row or column are electrically connected to each other, and the second touch electrodes 200 ′ in the same row or column are electrically connected to each other.

[0028] Due to the shape requirements of the display area of ​​the display panel, the first touch electrode 100' and the second touch electrode 200' near the non-display area may be cut. After cutting, the second touch electrode 200' may be separated into two or more independent second touch electrode blocks 210'. These two or more independent second touch electrode blocks 210' can be interconnected via second touch connection lines 220'. However, the sensitivity of the touch function layer decreases after cutting.

[0029] The applicant discovered that the capacitance of the cut second touch electrodes 200' in the same row was greater than that of the second touch electrodes 200' in other rows, resulting in poor capacitance uniformity across multiple rows of second touch electrodes 200' in the display area, affecting the sensitivity of the touch function layer. Further research revealed that the second touch connection lines 220' and the first touch drive lines 300' in the non-display area, which connect to the first touch electrodes 100', are relatively close, making coupling between the two more likely. This, in turn, increases the capacitance of the second touch electrodes 200'.

[0030] In order to solve the above technical problems, the present application is proposed. In order to better understand the present application, the display panel, display device and control method of the embodiments of the present application are described in detail below with reference to FIG. 2 to FIG. 11 .

[0031] Fig. 2 is a partial structural diagram of a display panel 10 provided by the present application, and Fig. 3 is a partial enlarged structural diagram of point P in Fig. 1. Fig. 3 is obtained by rotating point P in Fig. 2 by 90 degrees and enlarging it.

[0032] As shown in Figures 2 and 3, an embodiment of the first aspect of the present application provides a display panel 10 having a display area AA and a non-display area NA surrounding at least a portion of the display area AA. The display panel 10 includes a first touch electrode 100, a second touch electrode 200, a first touch drive line 300, and a first shielding line 400. The first touch electrode 100 is located in the display area AA; the second touch electrode 200 is located in the display area AA and includes a plurality of second touch electrode blocks 210 and a second touch connection line 220 for connecting at least two second touch electrode blocks 210; the first touch drive line 300 is located in the non-display area NA and is electrically connected to at least one first touch electrode 100. A first shielding line 400 is provided on the side of the first touch drive line 300 facing the display area AA, and the first shielding line 400 is located between the second touch connection line 220 and the first touch drive line 300.

[0033] In the display panel 10 provided in the embodiment of the present application, the display panel 10 includes a first touch electrode 100, a second touch electrode 200 and a first touch drive line 300. The display area AA of the display panel 10 is used to set a light-emitting unit, etc. to realize the light-emitting display function of the display panel 10. The non-display area NA of the display panel 10 can be used to set signal lines and other components that will affect the light-emitting display effect to ensure the light-emitting effect of the light-emitting unit in the display area AA. The first touch electrode 100 and the second touch electrode 200 can interact with each other to realize the touch function of the display panel 10. The second touch electrode 200 includes a second touch electrode block 210 and a second touch connection line 220. The second touch connection line 220 is used to connect adjacent second touch electrode blocks 210 to expand the distribution area of ​​the same second touch electrode 200.

[0034] The first touch drive line 300 is connected to the first touch electrode 100 for transmitting signals to the first touch electrode 100. The second touch connection line 220 is a signal line for transmitting the second touch electrode 200. The first touch drive line 300 and the second touch connection line 220 are used to transmit different signals. There may be coupling between the two, which leads to a larger channel capacitance of the second touch electrodes 200 in this row. As a result, the channel capacitance of the second touch electrodes 200 in a row adjacent to the non-display area NA is 10% to 20% greater than the channel capacitance of the second touch electrodes 200 in other rows, which causes the capacitance uniformity of multiple second touch electrodes 200 in the display area AA to be poor, affecting the touch sensitivity of the display panel 10.

[0035] In the embodiment of the present application, a first shielding line 400 is added between the second touch connection line 220 and the first touch drive line 300. The first shielding line 400 is located between the first touch drive line 300 and the second touch connection line 220 and can play a shielding role. It can improve the coupling problem between the second touch connection line 220 and the first touch drive line 300, reduce the channel capacitance of the second touch electrodes 200 in the row adjacent to the non-display area NA, reduce the channel capacitance difference between the second touch electrodes 200 in the row adjacent to the non-display area NA and the second touch electrodes 200 in other rows, improve the problem of poor capacitance uniformity of multiple second touch electrodes 200 in the display area AA, and thus improve the touch sensitivity of the display panel 10.

[0036] Optionally, the display area AA of the display panel 10 includes multiple touch areas TA, which are arranged in an array along a first direction X and a second direction Y. Each touch area TA may be provided with a first touch electrode 100 and a second touch electrode 200. FIG3 illustrates two of the touch areas TA using dotted lines. Optionally, as shown in FIG3 , within the same touch area TA, the second touch electrode 200 is divided into two parts by the first touch electrode 100, and the two parts may be interconnected via a bridge electrode. Two first touch electrodes 100 adjacent to each other along the first direction X are spaced apart from each other, and two first touch electrodes 100 adjacent to each other along the second direction Y are connected to each other. Two second touch electrodes 200 adjacent to each other along the first direction X are connected to each other, and two second touch electrodes 200 adjacent to each other along the second direction Y are spaced apart from each other.

[0037] Optionally, one of the first touch electrode 100 and the second touch electrode 200 is a touch driving electrode, and the other is a touch sensing electrode, so that the first touch electrode 100 and the second touch electrode 200 interact with each other to realize the touch function of the display panel 10 .

[0038] Optionally, the first touch electrodes 100 and the second touch electrodes 200 may be distributed sequentially along the first direction X and the second direction Y. Alternatively, the first touch electrodes 100 and the second touch electrodes 200 may be nested with each other to reduce the distance between the first touch electrodes 100 and the second touch electrodes 200 and increase the area of ​​interaction between the first touch electrodes 100 and the second touch electrodes 200.

[0039] Optionally, the first touch electrode 100 includes a first touch branch 101 and a second touch branch 102, and multiple second touch branches 102 are connected to the same first touch branch 101. Optionally, the multiple second touch branches 102 are arranged at intervals along the first touch branch 101. Optionally, the multiple second touch branches 102 are arranged on both sides of the first touch branch 101.

[0040] Optionally, at least two second touch electrode blocks 210 are disposed on either side of the same first touch branch 101 and / or second touch branch 102, and a second touch connection line 220 connects the at least two second touch electrode blocks 210. Optionally, the second touch connection line 220 may overlap with the first touch branch 101 and / or the second touch branch 102 and be disposed in a different layer, so that the second touch connection line 220 can connect the two second touch electrode blocks located on either side of the first touch branch 101. Alternatively, the second touch connection line 220 may connect two adjacent second touch electrode blocks 210 via the free end of the first touch branch 101.

[0041] Optionally, the second touch electrode block 210 includes a first branch electrode block 201 and a second branch electrode block 202, the first branch electrode block 201 can be located between the first touch branch 101 and the second touch branch 102, the second branch electrode block 202 can be located between two adjacent second touch branches 102, and the two first branch electrode blocks 201 are arranged on both sides of the first touch branch 101.

[0042] Optionally, in the same second touch electrode 200, the first branch electrode block 201 located on the side of the second branch electrode block 202 facing away from the non-display area NA can be directly electrically connected to the second branch electrode block 202 via the outside of the second touch branches 102. Optionally, the first branch electrode block 201 located on the side of the second branch electrode block 202 facing the non-display area NA can be connected to the second branch electrode block 202 via the second touch connection line 220.

[0043] Optionally, there are multiple first touch driving lines 300 , and the multiple first touch driving lines 300 are arranged side by side in the non-display area NA.

[0044] In some optional embodiments, please continue to refer to FIG. 3 , the second touch connection line 220 is located on the side of the first touch electrode 100 facing the non-display area NA, and the first shielding line 400 is located in the non-display area NA.

[0045] In these optional embodiments, the first shielding line 400 is located in the non-display area NA, which can reduce the number of conductive traces within the display area AA and simplify the wiring structure of the display area AA. Furthermore, since the first shielding line 400 is located in the non-display area NA, the first shielding line 400 has less impact on the wiring structure of the traces, and the first shielding line 400 can be longer. For example, the length of the first shielding line 400 can be the same as that of the first touch drive line 300, or even longer than that of the first touch drive line 300. This allows the first shielding line 400 to more comprehensively shield signal interference between the plurality of second touch connection lines 220 and the first touch drive line 300, thereby better improving the channel capacitance of the plurality of second touch electrodes 200 in the same row adjacent to the non-display area NA, reducing the channel capacitance difference between the second touch electrodes 200 in a row adjacent to the non-display area NA and the second touch electrodes 200 in other rows, and improving the problem of poor capacitance uniformity among the plurality of second touch electrodes 200 in the display area AA.

[0046] Optionally, when the first shielding line 400 is located in the non-display area NA, the second touch connection line 220 can be connected from the first touch electrode 100 to the outside of the non-display area NA to the adjacent second touch electrode block 210, so that the second touch connection line 220 and the second touch electrode block 210 can be arranged in the same film layer structure, which can simplify the structure of the second touch electrode 200.

[0047] Optionally, the first shielding line 400 extends in the same direction as the first touch driving line 300 to reduce positional interference between the first shielding line 400 and the first touch driving line 300. Optionally, as described above, when there are multiple first touch driving lines 300, the first shielding line 400 is located on the side of the multiple first touch driving lines 300 facing the display area AA, so that the first shielding line 400 and the multiple first touch driving lines 300 can be arranged in zones.

[0048] Please refer to FIG. 2 and FIG. 4 . FIG. 4 is a schematic diagram of a partially enlarged structure of point P in FIG. 2 in another example.

[0049] In some optional embodiments, as shown in FIG. 2 and FIG. 4 , the display panel 10 further includes a second shielding line 500 , which is used to connect to the touch control circuit. The second shielding line 500 and the first shielding line 400 are respectively arranged on both sides of the first touch drive line 300 .

[0050] In these optional embodiments, by arranging the first shielding line 400 and the second shielding line 500 on both sides of the first touch driving line 300, the coupling problem between the first touch driving line 300 and other signal lines on both sides thereof can be improved, thereby further improving touch sensitivity.

[0051] Optionally, as described above, when there are multiple first touch driving lines 300 , the first shielding line 400 and the second shielding line 500 are respectively disposed on both sides of the multiple first touch driving lines 300 .

[0052] In these optional embodiments, the first shielding lines 400 arranged on the side of the multiple first touch driving lines 300 facing the display area AA can improve the coupling between the multiple first touch driving lines 300 and the second touch electrodes 200 on the side of the display area AA, thereby reducing the channel capacitance difference between multiple rows of second touch electrodes 200; and the second shielding lines 500 arranged on the side of the multiple first touch driving lines 300 facing away from the display area AA can improve the coupling between the multiple first touch driving lines 300 and other signal lines located on the side of the first touch driving lines facing away from the display area AA, thereby improving the situation where the first touch driving lines 300 are interfered with by other signals, and improving the signal transmission sensitivity of the first touch driving lines 300.

[0053] Optionally, the extending direction of the second shielding line 500 is the same as the extending direction of the first touch driving line 300, so that the second shielding line 500 can more completely shield the signal interference between the first touch driving line 300 and other signal lines.

[0054] Please refer to FIG. 2 , FIG. 5 and FIG. 6 . FIG. 5 is a partial enlarged structural diagram of point P in FIG. 2 in another example; FIG. 6 is a cross-sectional view of point AA in FIG. 5 in another example.

[0055] In some optional embodiments, as shown in Figures 2, 5, and 6, the display panel 10 further includes a connecting line 600 disposed in a different layer from the first touch drive line 300. The connecting line 600 extends from the display area AA to the non-display area NA and connects the first shielding line 400 and the second shielding line 500. Figure 5 shows the location of the connecting line 600 in one embodiment using a dotted line.

[0056] In these optional embodiments, by providing a connecting wire 600, the first shielding wire 400 and the second shielding wire 500 can be connected, so that the first shielding wire 400 and the second shielding wire 500 have the same potential, and the first shielding wire 400 and the second shielding wire 500 carry the same shielding signal, thereby providing a shielding effect. The first shielding wire 400 can be connected to the touch control circuit via the second shielding wire 500, which can simplify the wiring layout. The first shielding wire 400 and the second shielding wire 500 are connected to the same connection position of the touch control circuit, which can make the first shielding wire 400 carry the shielding signal without increasing the number of connection positions of the touch control circuit. The connecting wire 600 and the first touch drive wire 300 are arranged in different layers, which can improve the position interference problem between the connecting wire 600 and the first touch drive wire 300.

[0057] Optionally, the first shielding line 400 and the first touch drive line 300 can be provided on the same layer, so that the first shielding line 400 and the first touch drive line 300 can be manufactured and formed in the same process step, which can simplify the manufacturing process of the display panel. In these embodiments, when the first shielding line 400 and the first touch drive line 300 are provided on the same layer, since the connecting line 600 and the first touch drive line 300 are provided on different layers, the connecting line 600 and the first shielding line 400 are provided on different layers, and the connecting line 600 and the first shielding line 400 can be connected via vias.

[0058] Optionally, the second shielding line 500 and the first touch drive line 300 can be provided on the same layer, so that the second shielding line 500 and the first touch drive line 300 can be manufactured and formed in the same process step, which can simplify the manufacturing process of the display panel. In these embodiments, when the second shielding line 500 and the first touch drive line 300 are provided on the same layer, since the connecting line 600 and the first touch drive line 300 are provided on different layers, the connecting line 600 and the second shielding line 500 are provided on different layers, and the connecting line 600 and the second shielding line 500 can be connected by vias.

[0059] Optionally, the first shielding wire 400, the second shielding wire 500, and the first touch driving wire 300 can be arranged in the same layer, so that the first shielding wire 400, the second shielding wire 500, and the first touch driving wire 300 can be manufactured and formed in the same process step, thereby simplifying the manufacturing process steps of the display panel 10 and improving the manufacturing efficiency of the display panel 10. When the first shielding wire 400, the second shielding wire 500, and the first touch driving wire 300 are arranged in the same layer, the connecting wire 600 is arranged in a different layer from the first shielding wire 400 and the second shielding wire 500, and the connecting wire 600 and the first shielding wire 400 and the second shielding wire 500 can be connected to each other via vias.

[0060] Please refer to FIG. 2 , FIG. 5 and FIG. 7 together. FIG. 7 is a cross-sectional view of the section AA in FIG. 5 in another example.

[0061] In other optional embodiments, as shown in Figures 2, 5, and 7, the first shielding wires 400 and the first touch drive wires 300 can be provided on the same layer, and the connecting wires 600 and the second shielding wires 500 can also be provided on the same layer. The connecting wires 600 and the second shielding wires 500 are interconnected within the same film layer to enhance the connection strength between them. The connecting wires 600 and the second shielding wires 500 can also be fabricated and formed in the same process step, simplifying the manufacturing process of the display panel 10. Figure 7 uses a dashed line to indicate the boundary between the second shielding wires 500 and the connecting wires 600.

[0062] Please refer to FIG. 2 , FIG. 5 and FIG. 8 . FIG. 8 is a cross-sectional view of the section AA in FIG. 5 in another example.

[0063] Optionally, as shown in Figures 2, 5, and 8, the first shielding wire 400, the connecting wire 600, and the second shielding wire 500 can be provided in the same layer, so that the first shielding wire 400, the connecting wire 600, and the second shielding wire 500 can be manufactured and formed in the same process step, thereby simplifying the manufacturing process steps of the display panel 10 and improving the manufacturing efficiency of the display panel 10. The boundaries of the first shielding wire 400, the connecting wire 600, and the second shielding wire 500 are indicated by dotted lines in Figure 8.

[0064] In some alternative embodiments, the first shielding wire 400 and the second shielding wire 500 can be insulated from each other, with the first shielding wire 400 used to connect to the touch control circuit. In the embodiment of the present application, the first shielding wire 400 and the second shielding wire 500 are independently provided, with the first shielding wire 400 being solely connected to the touch control circuit, facilitating independent routing of the first shielding wire 400 and the second shielding wire 500. Furthermore, the direct connection of the first shielding wire 400 to the touch control circuit can improve the stability of signal transmission between the first shielding wire 400 and the touch control circuit, thereby enhancing the signal shielding effectiveness of the first shielding wire 400.

[0065] In some optional embodiments, as shown in Figures 3 to 5, the projection of the second touch connection line 220 along the thickness direction of the display panel 10 and the projection of the first touch electrode 100 along the thickness direction are staggered, and the second touch connection line 220 and the second touch electrode 200 are arranged in the same layer.

[0066] In these optional embodiments, the projection of the second touch connection line 220 and the projection of the first touch electrode 100 are misaligned, the second touch connection line 220 can be set on the same layer as the first touch electrode 100, and the second touch connection line 220 can bypass the first touch electrode 100 to connect to the second touch electrode 200. Therefore, the first touch electrode 100, the second touch connection line 220 and the second touch electrode 200 can be set on the same layer, so that the first touch electrode 100, the second touch connection line 220 and the second touch electrode 200 can be prepared and formed in the same process step to simplify the preparation process of the display panel 10.

[0067] Please refer to FIG. 2 , FIG. 9 and FIG. 10 . FIG. 9 is a partial enlarged structural diagram of point P in FIG. 2 in another example; FIG. 10 is a cross-sectional view of point BB in FIG. 9 in another example.

[0068] In other optional embodiments, as shown in Figures 2, 9 and 10, at least part of the first touch electrodes 100 are arranged on both sides of the second touch electrode block 210, and the first shielding line 400 is located in the display area AA and connects at least part of the first touch electrodes 100 arranged on both sides of the second touch electrode block 210.

[0069] Optionally, when the first shielding line 400 is connected to at least part of the first touch electrodes 100 , the first shielding line 400 is used to transmit the first touch driving signal carried by the first touch electrodes 100 , and the first shielding line 400 is multiplexed as the first touch connection line 600 .

[0070] In these optional embodiments, the first shielding lines 400 can also be reused as first touch connection lines 600 to connect the first touch electrodes 100 located on both sides of the second touch electrode block 210. The first shielding lines 400 not only provide shielding but also connect the first touch electrodes 100 to transmit touch signals. This eliminates the need for additional shielding signal lines and simplifies the overall wiring structure of the display panel 10. Furthermore, the first shielding lines 400 adjacent to the first touch drive lines 300 in the non-display area NA within the display area AA are also used to transmit the first touch drive signals. Since the first touch drive lines 300 and the first shielding lines 400 transmit the same signal, coupling between the first touch drive lines 300 and the first shielding lines 400 is less likely to affect the channel capacitance of the first touch electrodes 100, further improving touch sensitivity.

[0071] As described above, the first touch electrode 100 includes a first touch branch 101 and a second touch branch 102, and at least part of the first touch branch 101 and the second touch branch 102 are arranged on both sides of the same second touch electrode block 210. Then the first shielding line 400 can connect the first touch branch 101 and the second touch branch 102 arranged on both sides of the second touch electrode block 210.

[0072] Optionally, the first shielding line 400 can connect the first touch branch 101 and the second touch branch 102 from the side of the second touch electrode block 210 toward the non-display area NA, so that the first shielding line 400 can be located between the first touch drive line 300 and the second touch electrode block 210, thereby improving the coupling problem between the second touch electrode block 210 and the first touch drive line 300.

[0073] In some optional embodiments, please continue to refer to Figures 2, 9 and 10, the second touch connection line 220 and the first touch electrode 100 and the second touch electrode 200 are arranged in different layers, and the second touch connection line 220 and the second touch electrode 200 are connected through vias.

[0074] In these optional embodiments, when the first shielding line 400 is reused as the first touch connection line 600 and connects at least a portion of the first touch electrodes 100, the wiring complexity of the touch layer increases. The second touch connection line 220, the first touch electrodes 100, and the second touch electrodes 200 are arranged on different layers, which can improve the short circuit connection problem between the second touch connection line 220 and the first touch electrodes 100. The second touch connection line 220 and the first touch electrodes 100 are arranged on different layers to prevent mutual interference between their signals. The second touch connection line 220 and the second touch electrodes 200 are arranged on different layers, so the second touch connection line 220 and the second touch electrodes 200 can be connected via vias.

[0075] Optionally, the projection of the second touch connection line 220 along the thickness direction and the projection of the first touch electrode 100 along the thickness direction are at least partially overlapped, which can reduce the overall distribution area of ​​the first touch electrode 100 and the second touch electrode 200 .

[0076] Optionally, the first touch electrodes 100 and the second touch electrodes 200 are provided in the same layer to simplify the layer structure of the display panel 10 .

[0077] In some optional embodiments, the first touch electrodes 100 and the first shielding lines 400 are connected to each other and enclose a hollow area 110 , and at least one second touch electrode block 210 is located in the hollow area 110 .

[0078] In these optional embodiments, the first shielding line 400 and the first touch electrode 100 are interconnected and enclosed to form a hollow area 110, and the second touch electrode 200 is located in the hollow area 110. On the one hand, this makes the conductive material more evenly distributed in the display area AA of the display panel 10, thereby improving the display effect of the display panel 10; on the other hand, it can increase the relative edge length between the first touch electrode 100 and the second touch electrode 200, thereby improving the sensing ability between the first touch electrode 100 and the second touch electrode 200, and thereby improving the touch sensitivity.

[0079] Optionally, one end of the first shielding wire 400 can be connected to the free end of the second touch branch 102, and the other end of the first shielding wire 400 can be connected to the free end of the first touch branch 101, that is, the first shielding wire 400 is connected between the first touch branch 101 and the second touch branch 102, and the second touch branch 102 is connected between the first touch branch 101 and the first shielding wire 400, so that the first shielding wire 400, the first touch branch 101 and the second touch branch 102 can enclose to form a hollow area 110.

[0080] In some optional embodiments, the multiple second touch electrode blocks 210 of the same second touch electrode 200 include a main electrode block 211 and a floating electrode block 212, the floating electrode block 212 is spaced apart from the main electrode block 211 and is located in the hollow area 110, and the second touch connection line 220 connects the main electrode block 211 and the floating electrode block 212 through a via.

[0081] In these optional embodiments, the second touch electrode block 210 includes a floating electrode block 212. The floating electrode block 212 is located in the hollow region 110. Therefore, the floating electrode block 212 cannot be connected to the main electrode block 211 within the same film layer. By providing a second touch connection line 220 disposed in a different layer from the second touch electrode 200, the second touch connection line 220 can connect the floating electrode block 212 and the main electrode block 211.

[0082] Optionally, as described above, the second touch electrode 200 includes a main electrode block 211 and branch electrode blocks, and the branch electrode block facing the non-display area NA is a floating electrode block 212 .

[0083] At the edge of the display area AA, the touch layer may be cut, resulting in the removal of the portion where the branch electrode blocks connect to the main electrode blocks 211, thereby forming the floating electrode blocks 212. In this embodiment of the present application, the second touch connection lines 220 are provided to connect the floating electrode blocks 212 and the main electrode blocks 211.

[0084] In some optional embodiments, the main electrode blocks 211 of two adjacent second touch electrodes 200 are electrically connected to each other to achieve full-row transmission of touch signals.

[0085] Please refer to FIG. 2 , FIG. 9 and FIG. 11 . FIG. 11 is a cross-sectional view of a section CC in FIG. 9 in an example.

[0086] Optionally, as shown in FIG. 2 , FIG. 9 and FIG. 11 , the main electrode blocks 211 of adjacent second touch electrodes 200 may be electrically connected to each other via a bridge portion 700 , so that multiple second touch electrodes 200 in the same row or column are connected to each other.

[0087] Optionally, at least two floating electrode blocks 212 are disposed on both sides of some first touch electrodes 100 , so that the shapes of the second touch electrodes 200 tend to be symmetrical, thereby improving the uniformity of the distribution of the second touch electrodes 200 .

[0088] Optionally, as described above, the two second touch branches 102 are symmetrically connected to both sides of the first touch branch 101 to form two symmetrically arranged hollow areas 110 on both sides of the first touch branch 101 , and each hollow area 110 is provided with a floating electrode block 212 .

[0089] In some optional embodiments, there are multiple second touch electrodes 200, and the multiple second touch electrodes 200 are distributed in rows and columns in the display area AA. At least one second touch electrode 200 adjacent to the non-display area NA includes a second touch electrode block 210 and a second touch connection line 220.

[0090] In these optional embodiments, the second touch electrode 200 adjacent to the non-display area NA may be cut and separated into two independent parts, and a second touch connection line 220 is provided to connect two independent second touch electrode blocks 210 in the second touch electrode 200. For example, the second touch connection line 220 can connect the main electrode block 211 and the floating electrode block 212 that are independently provided.

[0091] Optionally, the second touch electrodes 200 in the same row or column adjacent to the non-display area NA may be cut due to the design of the display area AA shape, so the second touch electrodes 200 in the same row or column adjacent to the non-display area NA include the above-mentioned second touch electrode blocks 210 and second touch connection lines 220.

[0092] In some optional embodiments, the projection area of ​​multiple second touch electrode blocks 210 of the same second touch electrode 200 along the thickness direction is the first projection area, and the projection area of ​​other second touch electrodes 200 that do not include the second touch electrode blocks 210 along the thickness direction is the second projection area, and the first projection area is smaller than the second projection area.

[0093] In these optional embodiments, when the second touch electrodes 200 near the non-display area NA are cut, their area is smaller than the second touch electrodes 200 at other positions, and the second touch electrodes 200 near the non-display area NA can form a second touch electrode block 210 connected by the second touch connection line 220.

[0094] In some optional embodiments, the first touch electrodes 100 and the second touch electrodes 200 are disposed in the same layer, and a plurality of first touch electrodes 100 and a plurality of second touch electrodes 200 are distributed in rows and columns;

[0095] The display panel 10 further includes a bridge portion 700 disposed in a different layer from the first touch electrodes 100 and the second touch electrodes 200 . The bridge portion 700 is located in the display area AA and electrically connects two adjacent first touch electrodes 100 .

[0096] Optionally, the first branch electrode blocks 201 located on both sides of the first touch branch 101 may be electrically connected to each other through the bridge portion 700 , and the bridge portion 700 and the second touch electrode 200 are provided in different layers.

[0097] In some optional embodiments, the first touch electrodes 100 are touch driving electrodes, and the second touch electrodes 200 are touch sensing electrodes. In other embodiments, the first touch electrodes 100 may also be touch sensing electrodes, and the second touch electrodes 200 may also be touch driving electrodes.

[0098] As shown in FIG12 , an embodiment of the second aspect of the present application further provides a display device, comprising the display panel 10 according to any of the above-mentioned embodiments of the first aspect. Since the display device provided by the embodiment of the second aspect of the present application comprises the display panel 10 according to any of the above-mentioned embodiments of the first aspect, the display device provided by the embodiment of the second aspect of the present application has the beneficial effects of the display panel 10 according to any of the above-mentioned embodiments of the first aspect, and no further details are given here.

[0099] The display device in the embodiments of the present application includes but is not limited to mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, consoles, and other devices with display functions.

[0100] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and components may be substituted with equivalents without departing from the scope of the present application. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A display panel, comprising a display area and a non-display area surrounding at least a portion of the display area, the display panel comprising: A first touch electrode is located in the display area; a second touch electrode located in the display area and comprising a plurality of second touch electrode blocks and a second touch connection line for connecting at least two of the second touch electrode blocks; A first touch driving line is located in the non-display area and is electrically connected to at least one of the first touch electrodes. In which, the display panel also includes a first shielding line. Along the thickness direction of the display panel, the projection of the first shielding line is located on the side of the projection of the first touch drive line facing the display area, and the projection of the first shielding line is located between the projection of the second touch connection line and the projection of the first touch drive line.

2. The display panel according to claim 1, wherein Along the thickness direction, the projection of the second touch connection line is located on a side of the projection of the first touch electrode facing the non-display area, and the first shielding line is located in the non-display area.

3. The display panel according to claim 2, further comprising a second shielding line, wherein the second shielding line is used to connect to the touch control circuit, and along the thickness direction, a projection of the second shielding line and a projection of the first shielding line are respectively arranged on both sides of the projection of the first touch drive line.

4. The display panel according to claim 3, further comprising a connecting line provided in a different layer from the first touch drive line, the connecting line extending from the display area to the non-display area and connecting the first shielding line and the second shielding line.

5. The display panel according to claim 4, wherein: The first shielding line and the first touch driving line are provided in the same layer, and the connecting line is connected to the first shielding line via a via hole; And / or, the second shielding line and the first touch driving line are provided in the same layer, and the connecting line and the second shielding line are connected through a via. The display panel according to claim 4 , wherein: The first shielding line and the first touch driving line are arranged in different layers, and the connecting line and the The first shielding wire is set on the same layer; And / or, the second shielding line and the first touch driving line are provided in different layers, and the connecting line and the second shielding line are provided in the same layer.

7. The display panel according to claim 3, wherein: The first shielding wire and the second shielding wire are insulated from each other, and the first shielding wire is used to connect the touch control circuit.

8. The display panel according to claim 2, wherein: A projection of the second touch connection line along the thickness direction of the display panel and a projection of the first touch electrode along the thickness direction are staggered, and the second touch connection line and the second touch electrode are arranged in the same layer.

9. The display panel according to claim 1, wherein: At least part of the first touch electrodes are disposed on both sides of the second touch electrode block. The first shielding line is located in the display area and connects at least part of the first touch electrodes disposed on both sides of the second touch electrode block.

10. The display panel according to claim 9, wherein: The projection of the second touch connection line along the thickness direction and the projection of the first touch electrode along the thickness direction are at least partially overlapped, the second touch connection line and the first touch electrode and the second touch electrode are arranged in different layers, and the second touch connection line and the second touch electrode are connected through vias.

11. The display panel according to claim 10, wherein: The first touch electrode and the first shielding line are connected to each other and enclose a hollow area. The multiple second touch electrode blocks of the same second touch electrode include a main electrode block and a floating electrode block. The floating electrode block is spaced apart from the main electrode block and is located in the hollow area. The second touch connection line vias connect the main electrode block and the floating electrode block.

12. The display panel according to claim 11, wherein: The main electrode blocks of two adjacent second touch electrodes are electrically connected to each other; and / or at least two floating electrode blocks are respectively arranged on both sides of some of the first touch electrodes.

13. The display panel according to claim 1, wherein: There are multiple second touch electrodes, and the multiple second touch electrodes are distributed in rows and columns in the display area. At least one second touch electrode adjacent to the non-display area includes a second touch electrode block and a second touch connection line.

14. The display panel according to claim 13, wherein: The projection area of ​​multiple second touch electrode blocks of the same second touch electrode along the thickness direction is a first projection area, and the projection area of ​​other second touch electrodes excluding the second touch electrode blocks along the thickness direction is a second projection area. The first projection area is smaller than the second projection area.

15. The display panel according to claim 1, wherein The first touch electrodes and the second touch electrodes are arranged in the same layer, and a plurality of the first touch electrodes and a plurality of the second touch electrodes are distributed in rows and columns; The display panel further includes a bridge portion provided in a different layer from the first touch electrodes and the second touch electrodes. The bridge portion is located in the display area and electrically connects two adjacent first touch electrodes.

16. The display panel according to claim 1, wherein The first touch electrodes are touch driving electrodes, and the second touch electrodes are touch sensing electrodes.

17. A display device comprising the display panel according to any one of claims 1 to 16.

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