Display panel, preparation method thereof and display device

Abstract

The present disclosure provides a display panel, a manufacturing method thereof and a display device. The display panel comprises a first electrode layer and a second electrode layer which are arranged in a stack; the first electrode layer comprises first electromagnetic coil electrodes extending along a first direction, and a plurality of the first electromagnetic coil electrodes are arranged along a second direction; the second electrode layer comprises second electromagnetic coil electrodes extending along the second direction, and a plurality of the second electromagnetic coil electrodes are arranged along the first direction; different first electromagnetic coil electrodes are connected to form a first coil, the first coil comprises a first opening extending along the first direction; and different second electromagnetic coil electrodes are connected to form a second coil, the second coil comprises a second opening extending along the second direction. In the display panel, the sensitivity of the EMR signal is improved.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and more specifically, to a display panel, a method for manufacturing the same, and a display device. Background Technology

[0002] In some electronic devices, to improve the handwriting experience, in addition to a capacitive touch detection film, an electromagnetic resonance (EMR) detection film is also added to detect the electromagnetic pen. However, the sensitivity to EMR signals still needs improvement. Summary of the Invention

[0003] This disclosure provides a display panel, a method for manufacturing the same, and a display device. By designing a first electromagnetic coil electrode and a second electromagnetic coil electrode to respectively constitute a first coil and a second coil, the sensitivity of the first coil and the second coil during operation is improved, thereby improving the electromagnetic induction sensitivity of the display panel.

[0004] The first aspect of this disclosure provides a display panel. The display panel includes a first electrode layer and a second electrode layer stacked together; the first electrode layer includes a first electromagnetic coil electrode extending along a first direction, and a plurality of first electromagnetic coil electrodes are arranged along a second direction; the second electrode layer includes a second electromagnetic coil electrode extending along the second direction, and a plurality of second electromagnetic coil electrodes are arranged along the first direction; different first electromagnetic coil electrodes are connected to form a first coil, the first coil including a first opening extending along the first direction; different second electromagnetic coil electrodes are connected to form a second coil, the second coil including a second opening extending along the second direction.

[0005] In the above scheme, by increasing the current's winding path on the first and second coils, the sensitivity of the first and second coils to current during operation is increased, thereby increasing the sensitivity of the display panel to electromagnetic induction signals.

[0006] In one specific embodiment of the first aspect of this disclosure, the display panel further includes a first coil lead and a second coil lead, wherein the two ends of the first coil lead are respectively connected to one end of two different first electromagnetic coil electrodes on the same side along a second direction, and the different first coil leads are connected to different first electromagnetic coil electrodes; and the two ends of the second coil lead are respectively connected to one end of two different second electromagnetic coil electrodes on the same side along a first direction, and the different second coil leads are connected to different second electromagnetic coil electrodes.

[0007] In the above scheme, the inductance corresponding to the first coil and the second coil is increased, thereby increasing the electromagnetic induction sensitivity of the display panel.

[0008] Optionally, the first coil lead is on the same layer as the first electromagnetic coil electrode, and / or the second coil lead is on the same layer as the second electromagnetic coil electrode. This not only improves the signal transmission efficiency of the first coil and / or the second coil, but also simplifies the manufacturing process, facilitating the reduction of the size and weight of the display panel.

[0009] Optionally, each group of first coils corresponds to multiple first coil leads, and each group of second coils corresponds to multiple second coil leads.

[0010] Optionally, the display panel further includes a first conductive layer and a second conductive layer. The first conductive layer is located on the side of the first electrode layer close to the second electrode layer, and the second conductive layer is located on the side of the second electrode layer away from the first electrode layer. The first conductive layer includes a first coil lead, which is connected to the first electromagnetic coil electrode through a first via. The second conductive layer includes a second coil lead, which is connected to the first electromagnetic coil electrode through a second via.

[0011] Optionally, the orthographic projections of adjacent first coils on the second electrode layer overlap, and the orthographic projections of adjacent second coils on the first electrode layer overlap. In this way, the magnetic fields in the overlapping areas of the corresponding coils will be superimposed, thereby increasing the sensitivity of the corresponding coils to current, enabling the display panel to respond to weaker current signals.

[0012] Optionally, the widths of the multiple first coils are all equal, and / or the widths of the multiple second coils are all equal. This facilitates the fabrication and design of the first and / or second coils while reducing signal loss on the first and / or second coils.

[0013] In one specific embodiment of the first aspect of this disclosure, the number of first coils is N1, and the number of first electromagnetic coil electrodes included in the first coil is [2N1-1, 2N1-1+M1], where N1 is an integer and M1 is an odd number greater than 0; and the number of second coils is N2, and the number of second electromagnetic coil electrodes included in the second coil is [2N2-1, 2N2-1+M2], where N2 is an integer and M2 is an odd number greater than 0.

[0014] The above scheme provides a variety of design options for the first and second coils, which can be applied to a variety of scenarios, increasing the applicability of the method.

[0015] Optionally, M1 and M2 are equal, and M1 and M2 are 3 or 5. In this way, while effectively reducing the AC resistance between the electrodes of different electromagnetic coils, it also facilitates the design and fabrication of the first and second coils.

[0016] In one specific embodiment of the first aspect of this disclosure, the display panel includes a display area and a non-display area located around the display area, and a first electromagnetic coil electrode and a second electromagnetic coil electrode are respectively located in the display area; the display panel also includes at least one first compensation lead and at least one second compensation lead, the two ends of the first compensation lead are connected to the two ends of a first electromagnetic coil electrode in a first direction to form a first compensation coil, and a portion of the first compensation lead is located in the non-display area, the two ends of the second compensation lead are connected to the two ends of a second electromagnetic coil electrode in a second direction to form a second compensation coil, and a portion of the second compensation lead is located in the non-display area.

[0017] In the above scheme, the design of the first compensation coil and the second compensation coil can improve the problem of poor electromagnetic induction signal induction in the edge area of ​​the display panel.

[0018] Optionally, the first compensation lead is disposed in the same layer as the first electromagnetic coil electrode, and / or the second compensation lead is disposed in the same layer as the second electromagnetic coil electrode.

[0019] In one specific embodiment of the first aspect of this disclosure, multiple first compensation leads and multiple second compensation leads are provided. The multiple first compensation leads are symmetrically arranged relative to the centerline of the display area in the first direction, and the multiple second compensation leads are symmetrically arranged relative to the centerline of the display area in the second direction.

[0020] The above solution can effectively improve the sensitivity of the edge area of ​​the display panel to electromagnetic induction signals.

[0021] In one specific embodiment of the first aspect of this disclosure, the display panel further includes a barrier located in the non-display area, and the first compensation lead and the second compensation lead are respectively located between the display area and the barrier.

[0022] In the above solution, the impact of the first compensation lead and the second compensation lead on the display function corresponding to the display area of ​​the display panel is reduced.

[0023] Optionally, multiple dams are provided, and multiple first compensation leads and multiple second compensation leads are provided respectively. At least a portion of the first compensation leads are located on the side of the dam away from the display area, and at least a portion of the second compensation leads are located on the side of the dam away from the display area.

[0024] Optionally, multiple retaining dams are provided, with at least a portion of the first compensation leads located between adjacent retaining dams and at least a portion of the second compensation leads located between adjacent retaining dams.

[0025] In one specific embodiment of the first aspect of this disclosure, the display panel further includes a plurality of first touch electrodes and a plurality of second touch electrodes. The first touch electrodes extend along a first direction, the plurality of first touch electrodes are arranged along a second direction, and the first touch electrodes are disposed in the same layer as the first electromagnetic coil electrodes; the second touch electrodes extend along the second direction, the plurality of second touch electrodes are arranged along the first direction, and the second touch electrodes are disposed in the same layer as the second electromagnetic coil electrodes.

[0026] In the above solution, the touch electrode and the electromagnetic induction coil are integrated together, which helps to achieve a thinner and lighter display panel.

[0027] Optionally, the first touch electrode and the first electromagnetic coil electrode are spaced apart, and the second touch electrode and the second electromagnetic coil electrode are spaced apart.

[0028] Optionally, the display panel further includes a first insulating layer disposed between the first electrode layer and the second electrode layer.

[0029] In one specific embodiment of the first aspect of this disclosure, the display panel further includes a first touch connection line and a second touch connection line. The first touch connection line is used to connect one end of a plurality of first touch electrodes extending in a first direction on the same side; the second touch connection line is used to connect one end of a plurality of second touch electrodes extending in a second direction on the same side.

[0030] In the above scheme, by connecting different touch electrodes together using corresponding touch connection lines, the loss of touch signals can be reduced, thereby improving the sensitivity of touch.

[0031] Optionally, the first touch connection line is disposed on the same layer as the first touch electrode, and / or the second touch connection line is disposed on the same layer as the second touch electrode.

[0032] Optionally, the display panel further includes a first conductive layer and a second conductive layer. The first conductive layer is located on the side of the first electrode layer close to the second electrode layer, and the second conductive layer is located on the side of the second electrode layer away from the first electrode layer. The first conductive layer includes a first touch connection line, which is connected to the first touch electrode through a third via. The second conductive layer includes a second touch connection line, which is connected to the second touch electrode through a fourth via.

[0033] In one specific embodiment of the first aspect of this disclosure, the first touch electrode, the second touch electrode, the first electromagnetic coil electrode, and the second electromagnetic coil electrode are all strip electrodes.

[0034] In one specific embodiment of the first aspect of this disclosure, the first touch electrode, the second touch electrode, the first electromagnetic coil electrode, and the second electromagnetic coil electrode are all rhomboid electrodes.

[0035] Optionally, the rhombic electrode includes rhombic electrode blocks connected by electrode wires to form a rhombic electrode.

[0036] Optionally, the electrode lines are arranged in the same layer as the corresponding rhomboid electrode blocks.

[0037] A second aspect of this disclosure provides a method for fabricating a display panel, the method comprising: providing a display substrate; forming a first electrode layer on the light-emitting side of the display substrate, the first electrode layer including a first electromagnetic coil electrode extending along a first direction, and a plurality of first electromagnetic coil electrodes arranged along a second direction; forming a second electrode layer on the side of the first electrode layer opposite to the display substrate, the second electrode layer including a second electromagnetic coil electrode extending along the second direction, and a plurality of second electromagnetic coil electrodes arranged along the first direction; connecting different first electromagnetic coil electrodes to form a first coil, the first coil including a first opening extending along the first direction; connecting different second electromagnetic coil electrodes to form a second coil, the second coil including a second opening extending along the second direction.

[0038] The third aspect of this disclosure provides a display device including a display panel, which is the display panel of the first aspect or obtained by the preparation method of the second aspect. Attached Figure Description

[0039] Figure 1 This is a plan view of a display panel provided in one embodiment of the present disclosure.

[0040] Figure 2 Provided for an embodiment of this disclosure Figure 1 A schematic diagram of a cross-section of a display panel in the E1F1 direction.

[0041] Figure 3 This is a schematic diagram of the structure of the first electrode layer of a display panel provided in an embodiment of the present disclosure.

[0042] Figure 4 This is a schematic diagram of the structure of the second electrode layer of a display panel according to an embodiment of the present disclosure.

[0043] Figure 5 This is a schematic diagram of the structure of the first electrode layer of another display panel provided in an embodiment of the present disclosure.

[0044] Figure 6 This is a schematic diagram of the structure of the second electrode layer of another display panel provided in an embodiment of the present disclosure.

[0045] Figure 7 Provided for an embodiment of this disclosure Figure 1 A schematic diagram of a cross-section of a display panel in the E2F2 direction.

[0046] Figure 8 Provided for an embodiment of this disclosure Figure 1 A schematic diagram of a cross-section of a display panel in the E1F1 direction.

[0047] Figure 9 This is a partial structural plan view of a display panel provided in one embodiment of the present disclosure.

[0048] Figure 10 This is a partial structural plan view of a display panel provided in one embodiment of the present disclosure.

[0049] Figure 11 This is a schematic diagram of the structure of the first electrode layer of another display panel provided in an embodiment of the present disclosure.

[0050] Figure 12 This is a schematic diagram of the structure of the first electrode layer of another display panel provided in an embodiment of the present disclosure.

[0051] Figure 13 Provided for an embodiment of this disclosure Figure 1 A schematic diagram of a cross-section of a display panel in the E2F2 direction.

[0052] Figure 14 Provided for an embodiment of this disclosure Figure 1 A schematic diagram of a cross-section of a display panel in the E1F1 direction.

[0053] Figure 15 This is a schematic diagram illustrating the positional relationship between a compensation lead in a display panel and a barrier dam, according to an embodiment of this disclosure.

[0054] Figure 16 This is a schematic diagram illustrating the positional relationship between a compensation lead in a display panel and a barrier dam, according to an embodiment of this disclosure.

[0055] Figure 17 This is a schematic diagram showing the positional relationship of the compensation lead relative to the barrier dam in another display panel provided in an embodiment of this disclosure.

[0056] Figure 18 This is a schematic diagram showing the positional relationship of the compensation lead relative to the barrier dam in another display panel provided in an embodiment of this disclosure.

[0057] Figure 19 This is a schematic diagram of the structure of a first electrode layer and a second electrode layer in a display panel according to an embodiment of the present disclosure.

[0058] Figure 20 Provided for an embodiment of this disclosure Figure 1 A schematic diagram of a cross-section of a display panel in the E2F2 direction.

[0059] Figure 21 Provided for an embodiment of this disclosure Figure 1 A schematic diagram of a cross-section of a display panel in the E1F1 direction.

[0060] Figure 22 Provided for an embodiment of this disclosure Figure 1 A schematic diagram of the structure of a diamond-shaped electrode in a display panel.

[0061] Figure 23 This is a schematic flowchart illustrating a method for manufacturing a display panel according to an embodiment of the present disclosure.

[0062] Explanation of reference numerals in the attached figures:

[0063] 100 - Display panel; AA - Display area; NA - Non-display area;

[0064] 110 - First electrode layer; 111 - First electromagnetic coil electrode; 112 - First coil; 113 - First opening; 114 - First compensation lead; 115 - First compensation coil; 116 - First touch electrode;

[0065] 120 - Second electrode layer; 121 - Second electromagnetic coil electrode; 122 - Second coil; 123 - Second opening; 124 - Second compensation lead; 125 - Second compensation coil; 126 - Second touch electrode;

[0066] 130a - First coil lead; V1 - First via; 130b - Second coil lead; V2 - Second via;

[0067] 140 - First conductive layer; 150 - Second conductive layer;

[0068] X - First direction; Y - Second direction; L1 - Centerline of the display area in the first direction; L2 - Centerline of the display area in the second direction;

[0069] 160 - Barrier dam; 161 - First barrier dam; 162 - Second barrier dam;

[0070] 170a - First touch connection line; V3 - Third via; 170b - Second touch connection line; V4 - Fourth via; 171 - Diamond electrode block; 173 - Electrode line; 180 - First insulating layer. Detailed Implementation

[0071] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0072] This disclosure provides a display panel. The display panel includes a first electrode layer and a second electrode layer stacked together. The first electrode layer includes a first electromagnetic coil electrode extending along a first direction, and a plurality of first electromagnetic coil electrodes are arranged along a second direction. The second electrode layer includes a second electromagnetic coil electrode extending along the second direction, and a plurality of second electromagnetic coil electrodes are arranged along the first direction. Different first electromagnetic coil electrodes are connected to form a first coil, which includes a first opening extending along the first direction. Different second electromagnetic coil electrodes are connected to form a second coil, which includes a second opening extending along the second direction. Thus, by connecting different first electromagnetic coil electrodes and different second electromagnetic coil electrodes to form the corresponding first and second coils, the current's winding path in the first and second coils is increased, effectively increasing the number of turns in the corresponding coils. Therefore, under the same current, the corresponding magnetic field strength increases. When the first and second coils of the display panel are working, for the same input current or changes in the external magnetic field, the first and second coils can generate more significant magnetic field changes, thereby responding more sensitively and improving the electromagnetic induction sensitivity of the display panel.

[0073] The following describes a display panel and its fabrication method and display device according to at least one embodiment of the present disclosure, with reference to the accompanying drawings. Furthermore, as shown in the drawings, in at least one embodiment of the present disclosure, a spatial rectangular coordinate system is established with the surface of the display panel as a reference to define the positions of each film layer in the display panel. In this spatial rectangular coordinate system, the X-axis and Y-axis are parallel to the surface of the display panel, and the Z-axis is perpendicular to the surface of the display panel.

[0074] In one embodiment of this disclosure, a display panel 100 is provided, such as Figure 1 As shown, the display panel 100 is divided into a display area AA and a non-display area NA. The non-display area NA is located around the display area AA and does not have a display function. Furthermore, the shape, size, and other parameters of the display area AA and the non-display area NA can be designed according to actual needs, and will not be elaborated here.

[0075] like Figure 2As shown, the display panel 100 includes a first electrode layer 110 and a second electrode layer 120 stacked together. The materials of the first electrode layer 110 and the second electrode layer 120 may include metals such as copper and silver, or metal oxides such as indium tin oxide and indium zinc oxide.

[0076] like Figure 3 and Figure 4 As shown, the first electrode layer 110 includes a plurality of first electromagnetic coil electrodes 111 extending along a first direction, i.e., the X direction, and the plurality of first electromagnetic coil electrodes 111 are arranged along a second direction, i.e., the Y direction. The second electrode layer 120 includes a plurality of second electromagnetic coil electrodes 121 extending along the second direction, i.e., the Y direction, and the plurality of second electromagnetic coil electrodes 121 are arranged along the first direction, i.e., the X direction. Different first electromagnetic coil electrodes 111 are connected to form a first coil 112, the first coil 112 including a first opening 113 extending along the first direction. Different second electromagnetic coil electrodes 121 are connected to form a second coil 122, the second coil 122 including a second opening 123 extending along the second direction.

[0077] Thus, by short-circuiting the same end of multiple first electromagnetic coil electrodes 111 together in the first direction to form a first coil 112, when the first coil 112 is working, current flows sequentially through the multiple connected first electromagnetic coil electrodes 111, forming a continuous winding path. Therefore, this is equivalent to increasing the number of turns of the first coil 112. According to Ampere's law, when the number of turns of the first coil 112 is increased, the corresponding magnetic field strength generated under the same current will increase, and the sensitivity to electromagnetic induction will also improve during operation. Similarly, the magnetic field strength generated by the second coil 122, composed of different second electromagnetic coil electrodes 121, will increase, and the sensitivity to electromagnetic signals will also improve during operation, thereby increasing the electromagnetic induction sensitivity of the display panel 100.

[0078] Based on the above embodiments, the present disclosure will now describe the specific structures of the first coil 112 and the second coil 122 as follows.

[0079] In a display panel 100 provided in one embodiment of this disclosure, such as Figure 5 and Figure 6As shown, the display panel 100 also includes a first coil lead 130a for connecting a first electromagnetic coil electrode 111 and a second coil lead 130b for connecting a second electromagnetic coil electrode 121. Specifically, both ends of the first coil lead 130a are respectively connected to one end of two different first electromagnetic coil electrodes 111 in the first direction (X direction) and on the same side along the second direction to form a first coil 112, and the different first coil leads 130a are connected to different first electromagnetic coil electrodes 111. Both ends of the second coil lead 130b are respectively connected to one end of two different second electromagnetic coil electrodes 121 in the second direction (Y direction) and on the same side along the first direction to form a second coil 122, and the different second coil leads 130b are connected to different second electromagnetic coil electrodes 121.

[0080] By connecting two different first electromagnetic coil electrodes 111 with the first coil lead 130a, multiple first coils 112 are formed. By connecting two different second electromagnetic coil electrodes 121 with the second coil lead 130b, multiple second coils 122 are formed. This is equivalent to increasing the number of turns of the first coils 112 and the second coils 122. Since the inductance of the coil is proportional to the square of the number of turns, the inductance of the first coils 112 and the second coils 122 is increased. The increased inductance causes the first coils 112 and the second coils 122 to generate a larger induced electromotive force when the current changes. This allows the induction coil (composed of the first coils 112 and the second coils 122) to more sensitively sense changes in the magnetic field, thereby improving the electromagnetic induction sensitivity of the display panel 100.

[0081] Based on the above embodiments, in the display panel 100 provided in at least one embodiment of this disclosure, the first coil lead 130a is on the same layer as the first electromagnetic coil electrode 111, and / or the second coil lead 130b is on the same layer as the second electromagnetic coil electrode 121. This design, where at least one of the first coil lead 130a and the second coil 122 is on the same layer as the corresponding first electromagnetic coil electrode 111 and second electromagnetic coil electrode 121, not only facilitates the thinning and lightening of the display panel 100 and reduces costs, but also improves the signal transmission efficiency of the first coil 112 and / or the second coil 122.

[0082] For example, such as Figure 5 , Figure 6As shown, in the display panel 100, the first electrode layer 110 includes a plurality of first electromagnetic coil electrodes 111 and a plurality of first coil leads 130a. Each first coil lead 130a has its two ends connected to the ends of two different first electromagnetic coil electrodes 111 in the X direction and located on the same side, thus connecting the two different first electromagnetic coil electrodes 111 in parallel to form a first coil 112. There are multiple first coils 112. The second electrode layer 120 includes a plurality of second electromagnetic coil electrodes 121 and a plurality of second coil leads 130b. Each second coil lead 130b has its two ends connected to the ends of two different second electromagnetic coil electrodes 121 in the Y direction and located on the same side, thus connecting the two different second electromagnetic coil electrodes 121 in parallel to form a second coil 122. There are multiple second coils 122.

[0083] Based on the above embodiments, in the display panel 100 provided in at least one embodiment of this disclosure, such as Figure 5 and Figure 6 As shown, each group of first coils 112 corresponds to multiple first coil leads 130a, and each group of second coils 122 corresponds to multiple second coil leads 130b.

[0084] Based on the above embodiments, in the display panel 100 provided in at least another embodiment of this disclosure, the display panel 100 further includes a first conductive layer 140 and a second conductive layer 150. The first conductive layer 140 is located on the side of the first electrode layer 110 close to the second electrode layer 120, and the second conductive layer 150 is located on the side of the second electrode layer 120 away from the first electrode layer 110. The first conductive layer 140 includes a first coil lead 130a, which is connected to the first electromagnetic coil electrode 111 through a first via V1. The second conductive layer 150 includes a second coil lead 130b, which is connected to the first electromagnetic coil electrode 111 through a second via V2.

[0085] For example, such as Figure 7 and Figure 8As shown, the display panel 100 includes a first electrode layer 110, a first conductive layer 140, a second electrode layer 120, and a second conductive layer 150 stacked sequentially. The first electrode layer 110 includes a first electromagnetic coil electrode 111. The corresponding first conductive layer 140, located on the side of the first electrode layer 110 closest to the second electrode layer 120, includes multiple first coil leads 130a. The first coil leads 130a connect two different electromagnetic coil electrodes in parallel through a first via V1, forming a first coil 112. The second electrode layer 120 includes a second electromagnetic coil electrode 121. The corresponding second conductive layer 150, located on the side of the second electrode layer 120 away from the first electrode layer 110, includes multiple second coil leads 130b. The second coil leads 130b connect two different electromagnetic coil electrodes in parallel through a second via V2, forming a second coil 122.

[0086] For example, such as Figure 9 and Figure 10 As shown, in this display panel 100, the first coil leads 130a connecting the first electromagnetic coil electrodes 111 of the same group include multiple leads, such as three. Similarly, the second coil leads 130b connecting the second electromagnetic coil electrodes 121 of the same group include multiple leads, such as three. This reduces the risk that defects in the first via V1 and the second via V2 could affect the reliability of the connection between the first coil 112 and the second coil 122.

[0087] In addition to describing the specific embodiments in which the first coil lead 130a and the second coil lead 130b constitute the first coil 112 and the second coil 122, this disclosure also describes the structure of the formed first coil 112 and the structure of the second coil 122, as detailed below.

[0088] In at least one embodiment of the display panel 100 provided in this disclosure, such as Figure 2 , Figure 5 and Figure 6 As shown, the orthographic projections of adjacent first coils 112 on the second electrode layer 120 overlap, and the orthographic projections of adjacent second coils 122 on the second electrode layer 120 also overlap. Thus, magnetic field coupling occurs between the spatially overlapping first coils 112 and second coils 122, and the magnetic fields in the overlapping areas are superimposed, thereby strengthening the magnetic field and increasing the sensitivity of the induction coils to the input current. This allows the first coils 112 and 122 to respond to even weaker current signals.

[0089] In the display panel 100 provided in at least one embodiment of this disclosure, the coil widths of a plurality of first coils 112 are all equal, and / or the coil widths of a plurality of second coils 122 are all equal.

[0090] For example, such as Figure 5 and Figure 6 As shown, the spacing between the two first electromagnetic coil electrodes 111 included in each first coil 112 is equal. This not only reduces inductance differences and the risk of signal distortion, but also lowers AC resistance, facilitating impedance matching and thus reducing signal transmission losses and improving transmission efficiency. Furthermore, from a design perspective, the parameters corresponding to the first coil 112 and the second coil 122 with equal coil widths are easier to determine and calculate, thereby simplifying the design and improving production efficiency.

[0091] Based on the above embodiments, in a display panel 100 provided in one embodiment of this disclosure, the number of first coils 112 is N1, and the number of first electromagnetic coil electrodes 111 included in the first coil 112 is [2N1-1, 2N1-1+M1], where N1 is an integer and M1 is an odd number greater than 0; and the number of second coils 122 is N2, and the number of second electromagnetic coil electrodes 121 included in the second coil 122 is [2N2-1, 2N2-1+M2], where N2 is an integer and M2 is an odd number greater than 0.

[0092] In the display panel 100 provided in at least one embodiment of this disclosure, M1 and M2 are equal, and M1 and M2 are 3 or 5.

[0093] For example, such as Figure 5 As shown, in the display panel 100, when M1=3, the first first coil 112 includes a first first electromagnetic coil electrode 111 and a fourth first electromagnetic coil electrode 111, the second first coil 112 includes a third first electromagnetic coil electrode 111 and a sixth first electromagnetic coil electrode 111, the third first coil 112 includes a fifth first electromagnetic coil electrode 111 and an eighth first electromagnetic coil electrode 111, and the fourth first coil 112 includes a seventh first electromagnetic coil electrode 111 and a tenth first electromagnetic coil electrode 111.

[0094] like Figure 6 As shown, when M2=3, the first second coil 122 includes the first second electromagnetic coil electrode 121 and the fourth second electromagnetic coil electrode 121, the second second coil 122 includes the third second electromagnetic coil electrode 121 and the sixth second electromagnetic coil electrode 121, the third second coil 122 includes the fifth second electromagnetic coil electrode 121 and the eighth second electromagnetic coil electrode 121, and the fourth second coil 122 includes the seventh second electromagnetic coil electrode 121 and the tenth second electromagnetic coil electrode 121.

[0095] For example, such as Figure 11 As shown, in the display panel 100, when M1=5, the first first coil 112 includes a first first electromagnetic coil electrode 111 and a sixth first electromagnetic coil electrode 111, the second first coil 112 includes a third first electromagnetic coil electrode 111 and an eighth first electromagnetic coil electrode 111, the third first coil 112 includes a fifth first electromagnetic coil electrode 111 and a tenth first electromagnetic coil electrode 111, the fourth first coil 112 includes a seventh first electromagnetic coil electrode 111 and a twelfth first electromagnetic coil electrode 111, and the fifth first coil 112 includes a ninth first electromagnetic coil electrode 111 and a fourteenth first electromagnetic coil electrode 111.

[0096] like Figure 12 As shown, when M2 = 5, the first second coil 122 includes the first second electromagnetic coil electrode 121 and the sixth second electromagnetic coil electrode 121, the second second coil 122 includes the third second electromagnetic coil electrode 121 and the eighth second electromagnetic coil electrode 121, the third second coil 122 includes the fifth second electromagnetic coil electrode 121 and the tenth second electromagnetic coil electrode 121, the fourth second coil 122 includes the seventh second electromagnetic coil electrode 121 and the twelfth second electromagnetic coil electrode 121, and the fifth second coil 122 includes the ninth second electromagnetic coil electrode 121 and the fourteenth second electromagnetic coil electrode 121.

[0097] In a display panel 100 provided in one embodiment of this disclosure, such as Figure 5 and Figure 6 , Figure 11 and Figure 12 As shown, the first electromagnetic coil electrode 111 and the second electromagnetic coil electrode 121 are respectively located in the display area AA. The display panel 100 also includes at least one first compensation lead 114 and at least one second compensation lead 124. The two ends of the first compensation lead 114 are connected to the two ends of a first electromagnetic coil electrode 111 in a first direction to form a first compensation coil 115, and a portion of the first compensation lead 114 is located in the non-display area NA. The two ends of the second compensation lead 124 are connected to the two ends of a second electromagnetic coil electrode 121 in a first direction to form a second compensation coil 125, and a portion of the second compensation lead 124 is located in the non-display area NA.

[0098] The first electromagnetic coil electrode 111 and the second electromagnetic coil electrode constituting the first compensation coil 115 and the second compensation coil 125, respectively, do not participate in constituting the first coil 112 and the second coil 122. For example, as... Figure 5 and Figure 6The second electromagnetic coil electrode 111 and the first compensation lead 114 constitute the first compensation coil 115, and the second electromagnetic coil electrode 121 and the second compensation lead 124 constitute the second compensation coil 125. Thus, the arrangement of the first compensation coil 115 and the second compensation coil 125 can improve the problem of poor electromagnetic induction signal at the edge position of the display panel 100.

[0099] In the display panel 100 provided in at least one embodiment of this disclosure, the first compensation lead 114 is disposed on the same layer as the first electromagnetic coil electrode 111, and / or the second compensation lead 124 is disposed on the same layer as the second electromagnetic coil electrode 121.

[0100] For example, such as Figure 1 and Figure 13 As shown, the first electrode layer 110 includes a first electromagnetic coil electrode 111, a first coil lead 130a, and a first compensation lead 114. The first coil lead 130a connects two different first electromagnetic coils to form a first coil 112, and there are multiple first coils 112. The first compensation lead 114 connects to the two ends of the first electromagnetic coil electrode 111, which does not participate in the formation of the first coil 112, in the first direction, i.e., the X direction, to form a first compensation coil 115. The second electrode layer 120 includes a second electromagnetic coil electrode 121, a second coil lead 130b, and a second compensation lead 124. The second coil lead 130b connects two different second electromagnetic coils to form a second coil 122, and there are multiple second coils 122. The second compensation lead 124 connects to the two ends of the second electromagnetic coil electrode 121, which does not participate in the formation of the second coil 122, in the second direction, i.e., the Y direction, to form a second compensation coil 125.

[0101] The display panel 100 in this disclosure is not limited to the above example. The first compensation lead 114 or the second compensation lead 124 can be disposed in other conductive layers, at least one of which is disposed in a different layer from the corresponding electrode layer. This can be designed according to actual needs, and will not be elaborated here.

[0102] In a display panel 100 provided in one embodiment of this disclosure, such as Figure 1 and Figure 14 As shown, multiple first compensation leads 114 are provided, and these multiple first compensation leads 114 are symmetrically arranged relative to the center line L1 of the display area AA in the first direction. Multiple second compensation leads 124 are provided, and these multiple first compensation leads 114 are symmetrically arranged relative to the center line L2 of the display area AA in the second direction. This effectively improves the problem of poor electromagnetic induction signal in the edge area of ​​the display panel 100.

[0103] Based on the above embodiments, this disclosure also provides a detailed description of the positions of the first compensation lead 114 and the second compensation lead 124 in the display panel 100 corresponding to the non-display area NA, providing multiple methods to adapt to different needs.

[0104] For example, in a display panel 100 provided in one embodiment of this disclosure, such as Figure 15 As shown, the display panel 100 also includes a blocking dam 160 located in the non-display area NA, and the first compensation lead 114 and the second compensation lead 124 are located between the display area AA and the blocking dam 160, respectively.

[0105] For example, in the display panel 100 provided in at least one embodiment of this disclosure, there are multiple, for example two, blocking dams 160, and multiple first compensation leads 114 and second compensation leads 124 are provided respectively. At least some of the first compensation leads 114 and second compensation leads 124 are located on the side of the blocking dam 160 away from the display area AA; or at least some of the first compensation leads 114 and second compensation leads 124 are located between adjacent blocking dams 160.

[0106] For example, such as Figure 16 As shown, in the display panel 100, the blocking dam 160 includes a first blocking dam 161 and a second blocking dam 162, with the second blocking dam 162 being farther away from the display area AA relative to the first blocking dam 161. Two first compensation leads 114 and two second compensation leads 124 are respectively provided. One first compensation lead 114 is located between the first blocking dam 161 and the display area AA, and the other first compensation lead 114 is located between the first blocking dam 161 and the second blocking dam 162. One second compensation lead 124 is located between the first blocking dam 161 and the display area AA, and the other second compensation lead 124 is located between the first blocking dam 161 and the second blocking dam 162.

[0107] For example, such as Figure 17 As shown, in the display panel 100, one first compensation lead 114 is located between the first barrier 161 and the display area AA, another first compensation lead 114 is located on the side of the second barrier 162 away from the display area AA, one second compensation lead 124 is located between the first barrier 161 and the display area AA, and another second compensation lead 124 is located on the side of the second barrier 162 away from the display area AA. Other structures can refer to the above embodiments and will not be described in detail here.

[0108] For example, such as Figure 18As shown, in the display panel 100, a first compensation lead 114 is located between the first blocking dam 161 and the second blocking dam 162, and another first compensation lead 114 is located on the side of the second blocking dam 162 away from the display area AA. A second compensation lead 124 is located between the first blocking dam 161 and the second blocking dam 162, and another second compensation lead 124 is located on the side of the second blocking dam 162 away from the display area AA. Other structures can refer to the above embodiment and will not be described in detail here.

[0109] In addition, regarding the design schemes of the first compensation lead 114 and the second compensation lead 124 relative to the barrier dam 160, other combination schemes are also included. These can be designed according to the number of barrier dams 160, the corresponding number of compensation leads, and actual needs, which will not be elaborated here.

[0110] It should be noted that the structure of the display panel 100 provided in this disclosure is not limited to the examples above. For example, the number of the first compensation lead 114 and the second compensation lead 124 can be three, four, or more. As another example, the number of barrier dams 160 can be three, four, or more. Furthermore, the embodiments of this disclosure do not limit the specific structure of the barrier dams 160. All of the above can be designed according to actual needs, and will not be elaborated upon here.

[0111] In a display panel 100 provided in one embodiment of this disclosure, such as Figure 19 As shown, the display panel 100 also includes a plurality of first touch electrodes 116 and a plurality of second touch electrodes 126. The plurality of first touch electrodes 116 extend along a first direction, are arranged along a second direction, and are disposed in the same layer as the first electromagnetic coil electrode 111; the plurality of second touch electrodes 126 extend along the second direction, are arranged along the first direction, and are disposed in the same layer as the second electromagnetic coil electrode 121. Thus, integrating the touch electrodes and electromagnetic induction coil electrodes into one unit not only facilitates the thinning of the display panel 100 but also reduces its processing difficulty and saves production costs.

[0112] In the display panel 100 provided in at least one embodiment of this disclosure, the first touch electrode 116 and the first electromagnetic coil electrode 111 are arranged at intervals, and the second touch electrode 126 and the second electromagnetic coil electrode 121 are arranged at intervals.

[0113] For example, such as Figure 2 and Figure 19As shown, the display panel 100 includes a first electrode layer 110, a second electrode layer 120, and a first insulating layer 180 located between the first electrode layer 110 and the second electrode layer 120. The first electrode layer 110 includes a first touch electrode 116 and a first electromagnetic coil electrode 111 spaced apart in a second direction, both extending along a first direction. The second electrode layer 120 includes a second touch electrode 126 and a second electromagnetic coil electrode 121 spaced apart in the first direction, both extending along a second direction.

[0114] In a display panel 100 provided in one embodiment of this disclosure, such as Figure 19 As shown, the display panel 100 also includes a first touch connection line 170a and a second touch connection line 170b. The first touch connection line 170a is connected to the same end of a plurality of first touch electrodes 116 extending in a first direction. The second touch connection line 170b is connected to the same end of a plurality of second touch electrodes 126 extending in a second direction. Thus, by using the first touch connection line 170a and the second touch connection line 170b to short-circuit the first touch electrodes 116 and the second touch electrodes 126 respectively, the transmission path of the touch signal can be made more concentrated and regular, reducing the attenuation and interference of the touch signal during transmission. This enhances the stability of the touch signal and also improves the sensitivity of the touch.

[0115] In the display panel 100 provided in at least one embodiment of this disclosure, the first touch connection line 170a is disposed on the same layer as the first touch electrode 116, and / or the second touch connection line 170b is disposed on the same layer as the second touch electrode 126.

[0116] For example, such as Figure 19 As shown, the display panel 100 includes a first electrode layer 110 and a second electrode layer 120 stacked together. The first electrode layer 110 includes a first touch electrode 116, a first electromagnetic coil electrode 111, and a first touch connection line 170a connected to the first touch electrode 116. The second electrode layer 120 includes a second touch electrode 126, a second electromagnetic coil electrode 121, and a second touch connection line 170b connected to the second touch electrode 126.

[0117] In the display panel 100 provided in at least another embodiment of this disclosure, such as Figure 20 and Figure 21As shown, the display panel 100 includes a first electrode layer 110, a second electrode layer 120, a first conductive layer 140, and a second conductive layer 150. The first conductive layer 140 is located on the side of the first electrode layer 110 close to the second electrode layer 120, and the second conductive layer 150 is located on the side of the second electrode layer 120 away from the first electrode layer 110. The first electrode layer 110 includes a first touch electrode 116 and a first electromagnetic coil electrode 111. The first conductive layer 140 includes a first touch connection line 170a, which is connected to the first touch electrode 116 through a third via V3. The second electrode layer 120 includes a second touch electrode 126 and a second electromagnetic coil electrode 121. The second conductive layer 150 includes a second touch connection line 170b, which is connected to the second touch electrode 126 through a fourth via V4.

[0118] The first touch connection line 170a and the second touch connection line 170b may include multiple lines, such as three lines, which can improve the stability of the connection between different touch connection lines and the corresponding touch electrodes, thereby improving the stability of the display panel 100.

[0119] The structure of the display panel 100 in this embodiment is not limited to the above example. For example, at least one of the first touch connection line 170a and the second touch connection line 170b may be located in other conductive layers such as the first conductive layer 140 or the second conductive layer 150. The specific structure can be designed according to actual needs, and will not be described in detail here.

[0120] Based on the above embodiments, the present disclosure also defines the shapes of the first touch electrode 116, the second touch electrode 126, the first electromagnetic coil electrode 111, and the second electromagnetic coil electrode 121.

[0121] For example, in a display panel 100 provided in one embodiment of this disclosure, such as Figure 19 As shown, the first touch electrode 116, the second touch electrode 126, the first electromagnetic coil electrode 111, and the second electromagnetic coil electrode 121 are all strip electrodes.

[0122] For example, in the display panel 100 provided in at least one embodiment of this disclosure, such as Figure 22 As shown, the first touch electrode 116, the second touch electrode 126, the first electromagnetic coil electrode 111, and the second electromagnetic coil electrode 121 are all rhomboid electrodes.

[0123] Based on the above embodiments, in the display panel 100 provided in at least one embodiment of this disclosure, the rhomboid electrode includes rhomboid electrode blocks 171, and the rhomboid electrode blocks 171 are connected by electrode lines 173 to form a rhomboid electrode.

[0124] In at least one embodiment of the present invention, the display panel 100 is provided with electrode lines 173 and corresponding diamond-shaped electrode blocks 171 arranged on the same layer.

[0125] The display panel in the embodiments of this disclosure may also include other structures, such as a protective layer disposed on the second electrode layer facing away from the first electrode, which is used to protect the touch electrode and the electromagnetic induction electrode. Furthermore, the protective layer may be a single structure or comprise multiple sub-units; these can be designed according to actual needs and will not be elaborated upon here.

[0126] This disclosure also provides a method for manufacturing a display panel, such as... Figure 23 As shown, the preparation method includes the following steps:

[0127] Step S100: Provide a display substrate. The display substrate may include a substrate, an array substrate, a light-emitting device layer, and an encapsulation layer stacked sequentially. The substrate may be a flexible substrate or a rigid substrate. The material of the flexible substrate may be, but is not limited to, one or more combinations of polyimide (PI), polyetherimide (PEI), polyphenylene sulfide (PPS), and polyarylate (PAR). The array substrate may be a TFT (Thin Film Transistor) array substrate; the light-emitting device layer may be an OLED light-emitting device layer, including an anode layer, a light-emitting layer, and a cathode layer; the encapsulation layer may be a thin-film encapsulation layer, covering the light-emitting device layer to prevent water and oxygen from penetrating it. Furthermore, the display substrate may also include a touch electrode layer, which may be prepared in conjunction with the first and second electrode layers mentioned below, or it may be prepared from other separate electrode layers. All of these can be selected according to actual needs and will not be elaborated upon here.

[0128] Step S200: A first electrode layer is formed on the light-emitting side of the display substrate. The first electrode layer includes a first electromagnetic coil electrode extending along a first direction. A plurality of first electromagnetic coil electrodes are arranged along a second direction. Different first electromagnetic coil electrodes are connected to form a first coil. The first coil includes a first opening that extends along the first direction.

[0129] Step S300: A second electrode layer is formed on the side of the first electrode layer away from the display substrate. The second electrode layer includes a second electromagnetic coil electrode extending along a second direction. A plurality of second electromagnetic coil electrodes are arranged along a first direction. Different second electromagnetic coil electrodes are connected to form a second coil. The second coil includes a second opening that extends along the second direction.

[0130] In the display panel obtained by the above preparation method, the current circulation path on the first coil and the second coil is increased, thereby increasing the sensitivity of the first coil and the second coil to the current when they are working, and thus increasing the sensitivity of the display panel obtained by this preparation method to electromagnetic induction signals.

[0131] This disclosure also provides a display device, which includes a display panel, which is the display panel in the above embodiment or obtained by the preparation method in the above embodiment.

[0132] In the embodiments of this disclosure, the display device may be an organic light-emitting diode display device, a liquid crystal display device, an electronic paper display device, etc.

[0133] For example, the display device in the embodiments of this disclosure can be any product or component with display function, such as a television, digital camera, mobile phone, watch, tablet computer, laptop computer, or navigator.

[0134] It should be noted that the embodiments disclosed herein do not describe all the structures of the display device. To achieve the necessary functions of the display device, those skilled in the art can configure other structures according to specific application scenarios.

[0135] The above description is merely a preferred embodiment of this disclosure and is not intended to limit this disclosure. Any modifications or equivalent substitutions made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A display panel, characterized in that, It includes a first electrode layer and a second electrode layer stacked together; The first electrode layer includes a first electromagnetic coil electrode extending along a first direction, and a plurality of the first electromagnetic coil electrodes are arranged along a second direction; The second electrode layer includes a second electromagnetic coil electrode extending along the second direction, and a plurality of the second electromagnetic coil electrodes are arranged along the first direction; Different first electromagnetic coil electrodes are connected to form a first coil, the first coil including a first opening extending along a first direction; different second electromagnetic coil electrodes are connected to form a second coil, the second coil including a second opening extending along a second direction.

2. The display panel according to claim 1, characterized in that, The display panel further includes a first coil lead and a second coil lead, wherein... Both ends of the first coil lead are respectively connected to one end of two different first electromagnetic coil electrodes on the same side along the second direction, and the different first coil leads are connected to different first electromagnetic coil electrodes; and The two ends of the second coil lead are respectively connected to one end of two different second electromagnetic coil electrodes on the same side along the first direction, and the different second coil leads are connected to different second electromagnetic coil electrodes; Preferably, the first coil lead is in the same layer as the first electromagnetic coil electrode, and / or the second coil lead is in the same layer as the second electromagnetic coil electrode; Preferably, each group of first coils corresponds to multiple first coil leads, and each group of second coils corresponds to multiple second coil leads; Preferably, the display panel further includes a first conductive layer and a second conductive layer. The first conductive layer is located on the side of the first electrode layer close to the second electrode layer, and the second conductive layer is located on the side of the second electrode layer away from the first electrode layer. The first conductive layer includes a first coil lead, which is connected to the first electromagnetic coil electrode through a first via. The second conductive layer includes a second coil lead, which is connected to the first electromagnetic coil electrode through a second via. Preferably, the orthographic projections of adjacent first coils on the second electrode layer overlap, and the orthographic projections of adjacent second coils on the first electrode layer overlap. Preferably, the coil widths of the plurality of first coils are all equal, and / or the coil widths of the plurality of second coils are all equal.

3. The display panel according to claim 2, characterized in that, The number of the first coils is N1, and the number of the first electromagnetic coil electrodes included in the first coil is [2N1-1, 2N1-1+M1], where N1 is an integer and M1 is an odd number greater than 0; and The number of the second coils is N2, and the number of the second electromagnetic coil electrodes included in the second coil is [2N2-1, 2N2-1+M2], where N2 is an integer and M2 is an odd number greater than 0; Preferably, M1 and M2 are equal, and M1 and M2 are 3 or 5.

4. The display panel according to claim 1, characterized in that, The display panel includes a display area and a non-display area located around the periphery of the display area, wherein the first electromagnetic coil electrode and the second electromagnetic coil electrode are respectively located in the display area; The display panel further includes at least one first compensation lead and at least one second compensation lead. The two ends of the first compensation lead are connected to the two ends of a first electromagnetic coil electrode in the first direction to form a first compensation coil. A portion of the first compensation lead is located in the non-display area. The two ends of the second compensation lead are connected to the two ends of a second electromagnetic coil electrode in the second direction to form a second compensation coil. A portion of the second compensation lead is located in the non-display area. Preferably, the first compensation lead is disposed in the same layer as the first electromagnetic coil electrode, and / or the second compensation lead is disposed in the same layer as the second electromagnetic coil electrode; Preferably, multiple first compensation leads and multiple second compensation leads are provided, with the multiple first compensation leads arranged symmetrically with respect to the centerline of the display area in the first direction, and the multiple second compensation leads arranged symmetrically with respect to the centerline of the display area in the second direction.

5. The display panel according to claim 4, characterized in that, The display panel also includes a barrier located in the non-display area, with the first compensation lead and the second compensation lead located between the display area and the barrier, respectively. Preferably, multiple barriers are provided, and multiple first compensation leads and multiple second compensation leads are provided respectively. At least a portion of the first compensation leads are located on the side of the barrier away from the display area, and at least a portion of the second compensation leads are located on the side of the barrier away from the display area; or, at least a portion of the first compensation leads are located between adjacent barriers, and at least a portion of the second compensation leads are located between adjacent barriers.

6. The display panel according to any one of claims 1-5, characterized in that, The display panel also includes: Multiple first touch electrodes extend along the first direction, and multiple first touch electrodes are arranged along the second direction, and the first touch electrodes and the first electromagnetic coil electrodes are disposed in the same layer; A plurality of second touch electrodes extend along the second direction, and the plurality of second touch electrodes are arranged along the first direction, and the second touch electrodes are disposed in the same layer as the second electromagnetic coil electrodes; Preferably, the first touch electrode and the first electromagnetic coil electrode are spaced apart, and the second touch electrode and the second electromagnetic coil electrode are spaced apart; Preferably, the display panel further includes a first insulating layer disposed between the first electrode layer and the second electrode layer.

7. The display panel according to claim 6, characterized in that, The display panel also includes: A first touch connection line is used to connect one end of a plurality of first touch electrodes on the same side extending in the first direction; and The second touch connection line is used to connect one end of the plurality of second touch electrodes on the same side extending in the second direction; Preferably, the first touch connection line is disposed in the same layer as the first touch electrode, and / or the second touch connection line is disposed in the same layer as the second touch electrode; Preferably, the display panel further includes a first conductive layer and a second conductive layer. The first conductive layer is located on the side of the first electrode layer close to the second electrode layer, and the second conductive layer is located on the side of the second electrode layer away from the first electrode layer. The first conductive layer includes a first touch connection line, which is connected to the first touch electrode through a third via. The second conductive layer includes a second touch connection line, which is connected to the second touch electrode through a fourth via.

8. The display panel according to claim 6, characterized in that, The first touch electrode, the second touch electrode, the first electromagnetic coil electrode, and the second electromagnetic coil electrode are all strip-shaped electrodes, or... The first touch electrode, the second touch electrode, the first electromagnetic coil electrode, and the second electromagnetic coil electrode are all rhomboid electrodes; preferably, the rhomboid electrode includes rhomboid electrode blocks, and the rhomboid electrode blocks are connected by electrode lines to form the rhomboid electrode; more preferably, the electrode lines are disposed in the same layer as the corresponding rhomboid electrode blocks.

9. A method for manufacturing a display panel, characterized in that, include: Provide display substrates; A first electrode layer is formed on the light-emitting side of the display substrate. The first electrode layer includes a first electromagnetic coil electrode extending along a first direction, and a plurality of the first electromagnetic coil electrodes are arranged along a second direction. A second electrode layer is formed on the side of the first electrode layer opposite to the display substrate. The second electrode layer includes a second electromagnetic coil electrode extending along the second direction, and a plurality of the second electromagnetic coil electrodes are arranged along the first direction. Different first electromagnetic coil electrodes are connected to form a first coil, the first coil including a first opening extending along a first direction; different second electromagnetic coil electrodes are connected to form a second coil, the second coil including a second opening extending along a second direction.

10. A display device, characterized in that, Includes a display panel, wherein the display panel is the display panel of any one of claims 1-8 or obtained by the preparation method of claim 9.

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