Capacitive touch screen and electronic device

Abstract

The invention relates to the technical field of touch control, and discloses a capacitive touch screen and an electronic device.The capacitive touch screen comprises a substrate, and a first touch control electrode layer, a second touch control electrode layer, a first insulating layer, a first electromagnetic layer, a second electromagnetic layer and a peripheral electromagnetic lead are arranged on the substrate; the first electromagnetic layer and the second electromagnetic layer respectively comprise a first electromagnetic lead group and a second electromagnetic lead group, and the projection patterns of the first electromagnetic lead group and the second electromagnetic lead group in the vertical direction are overlapped with the projection patterns of the first block and the second block in the vertical direction. According to the scheme, the first electromagnetic layer and the second electromagnetic layer are reasonably embedded into the capacitive touch screen, the electromagnetic pen is charged through the peripheral electromagnetic leads, compatibility of finger touch control and electromagnetic pen touch control is achieved on the capacitive touch screen, and therefore the capacitive touch screen is more convenient to use. And the cost is reduced on the premise of ensuring the performance.

Description

Technical Field

[0001] This invention relates to the field of touch technology, and more particularly to a capacitive touch screen and electronic device. Background Technology

[0002] Touch technology is a human-computer interaction technology that allows users to interact with computers or other electronic devices by touching a screen. Existing active pens mainly include electromagnetic active pens and capacitive active pens. Capacitive active pens are based on electro-capacitive touch technology and require a capacitive screen for compatibility; the capacitive screen also supports finger touch. Electromagnetic active pens use the principle of electromagnetic induction, thus offering higher precision and sensitivity compared to capacitive active pens. Electromagnetic active pens require a corresponding electromagnetic screen to support electromagnetic touch, but electromagnetic screens often do not support finger touch.

[0003] In some existing high-end touch display devices, a combination of capacitive and electromagnetic screens is typically used to simultaneously support finger touch and electromagnetic pen functions. However, this solution is very expensive because it requires two independent touch screens and complex circuit design and control system, making it unsuitable for large-scale applications.

[0004] Therefore, achieving compatibility between finger touch and electromagnetic pen touch at a low cost is a significant challenge currently facing the technology. Summary of the Invention

[0005] The present invention aims to solve at least one problem in the prior art. To this end, the present invention proposes a capacitive touchscreen and electronic device that simultaneously enables finger touch and electromagnetic pen touch on a single touchscreen, achieving compatibility between finger touch and electromagnetic pen touch, and reducing costs while ensuring performance.

[0006] A capacitive touchscreen according to a first aspect of the present invention includes a substrate. A first touch electrode layer, a second touch electrode layer, a first insulating layer, a first electromagnetic layer, a second electromagnetic layer, and peripheral electromagnetic leads are disposed on the substrate. The substrate has a first surface and a second surface. The first surface is divided into a touch area and a bonding area, the bonding area being located on at least one side of the touch area. The first touch electrode layer is disposed on the first surface and includes a plurality of first touch electrodes extending along a first direction, with a first block between adjacent first touch electrodes. Each first touch electrode has a first touch lead extending from it, and the plurality of first touch leads extending from the touch area to the bonding area. The second touch electrode layer is disposed on the first touch electrode layer and includes a plurality of second touch electrodes extending along a second direction, with a second block between adjacent second touch electrodes. Each second touch electrode has a second touch lead extending from it. Multiple second touch leads extend from the touch area to the bonding area; a first insulating layer is disposed between the first touch electrode layer and the second touch electrode layer; the first electromagnetic layer includes multiple first electromagnetic lead groups, each first electromagnetic lead group including multiple first electromagnetic leads, the vertical projection pattern of the first electromagnetic lead group overlaps with the vertical projection pattern of the first block, and both ends of the first electromagnetic lead group extend along the first direction to the bonding area; the second electromagnetic layer includes multiple second electromagnetic lead groups, each second electromagnetic lead group including multiple second electromagnetic leads, the vertical projection pattern of the second electromagnetic lead group overlaps with the vertical projection pattern of the second block, and both ends of the second electromagnetic lead group extend along the second direction to the bonding area; the peripheral electromagnetic lead is disposed at the edge of the touch area, and the width of the peripheral electromagnetic lead is greater than the width of the first electromagnetic lead and the width of the second electromagnetic lead. The second insulating layer is disposed between the first electromagnetic layer and the second electromagnetic layer.

[0007] Therefore, this solution achieves simultaneous finger touch and electromagnetic pen touch on a single touchscreen by reasonably embedding the first and second electromagnetic layers into the capacitive touchscreen and charging the electromagnetic pen through peripheral electromagnetic leads. This ensures compatibility between finger touch and electromagnetic pen touch, while reducing costs while maintaining performance.

[0008] According to another embodiment of the present invention, a second insulating layer is further included, which is disposed between the first electromagnetic layer and the second electromagnetic layer.

[0009] According to another embodiment of the present invention, a third insulating layer is further included, wherein the first touch electrode layer, the first insulating layer, the second touch electrode layer, the third insulating layer, the first electromagnetic layer, the second insulating layer and the second electromagnetic layer are sequentially disposed on the first surface.

[0010] According to another embodiment of the present invention, a fourth insulating layer is further included, wherein the first touch electrode layer, the first insulating layer, the first electromagnetic layer, the second insulating layer, the second touch electrode layer, the fourth insulating layer and the second electromagnetic layer are sequentially disposed on the first surface.

[0011] According to another embodiment of the present invention, each first electromagnetic lead group includes three first electromagnetic leads, and the distance between two adjacent first electromagnetic leads is the same, and / or each second electromagnetic lead group includes three second electromagnetic leads, and the distance between two adjacent second electromagnetic leads is the same.

[0012] According to another embodiment of the present invention, the vertical projection pattern of each first block and the vertical projection pattern of the first electromagnetic lead group overlap, and the vertical projection pattern of each second block and the vertical projection pattern of the second electromagnetic lead group overlap.

[0013] According to another embodiment of the present invention, in each of the first electromagnetic lead groups, a single first electromagnetic lead is located in two non-adjacent first blocks, and in each of the second electromagnetic lead groups, a single second electromagnetic lead is located in two non-adjacent second blocks.

[0014] According to another embodiment of the present invention, in each of the first electromagnetic lead groups, the distance between the same first electromagnetic lead in two non-adjacent first blocks is 8-12 mm, and in each of the second electromagnetic lead groups, the distance between the same second electromagnetic lead in two non-adjacent second blocks is 4-16 mm.

[0015] According to another embodiment of the present invention, a control unit is further included, which controls the electrical connection with the first touch electrode, the second touch electrode and the electromagnetic lead group.

[0016] An electronic device according to a second aspect of the present invention includes a capacitive touchscreen and an electromagnetic pen, wherein the capacitive touchscreen is any of the capacitive touchscreens described above.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention discloses a capacitive touchscreen and an electronic device. The capacitive touchscreen includes a substrate, on which a first touch electrode layer, a second touch electrode layer, a first insulating layer, a first electromagnetic layer, a second electromagnetic layer, and peripheral electromagnetic leads are disposed. The substrate has a first surface and a second surface. The first surface is divided into a touch area and a bonding area, with the bonding area located on at least one side of the touch area. The first touch electrode layer is disposed on the first surface and includes a plurality of first touch electrodes extending along a first direction, with adjacent first touch electrodes... A first block is formed between the control electrodes, and each first touch electrode has a first touch lead extending from it. Multiple first touch leads extend from the touch area to the bonding area. A second touch electrode layer is disposed on the first touch electrode layer. The second touch electrode layer includes multiple second touch electrodes extending along a second direction, and a second block is formed between two adjacent second touch electrodes. Each second touch electrode has a second touch lead extending from it, and multiple second touch leads extend from the touch area to the bonding area. A first insulating layer is disposed between the first touch electrode layer and the second touch electrode layer. The first electromagnetic layer includes multiple first electromagnetic lead groups, each of which includes multiple first electromagnetic leads. The vertical projection pattern of the first electromagnetic lead group overlaps with the vertical projection pattern of the first block, and both ends of the first electromagnetic lead group extend along a first direction to the bonding area. The second electromagnetic layer includes multiple second electromagnetic lead groups, each of which includes multiple second electromagnetic leads. The vertical projection pattern of the second electromagnetic lead group overlaps with the vertical projection pattern of the second block, and both ends of the second electromagnetic lead group extend along a second direction to the bonding area. The peripheral electromagnetic leads are disposed at the edge of the touch area, and the width of the peripheral electromagnetic leads is greater than the width of the first electromagnetic leads and the width of the second electromagnetic leads. A second insulating layer is disposed between the first electromagnetic layer and the second electromagnetic layer. This solution achieves simultaneous finger touch and electromagnetic pen touch on a single touch screen by reasonably embedding the first electromagnetic layer and the second electromagnetic layer in a capacitive touch screen, realizing compatibility between finger touch and electromagnetic pen touch, and reducing costs while ensuring performance.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0021] Figure 1 A schematic diagram of the first touch electrode layer of an embodiment of the capacitive touch screen provided in this application;

[0022] Figure 2 A schematic diagram of the second touch electrode layer of an embodiment of the capacitive touch screen provided in this application;

[0023] Figure 3 A cross-sectional schematic diagram of an embodiment of the capacitive touchscreen provided in this application;

[0024] Figure 4 A cross-sectional schematic diagram of another embodiment of the capacitive touchscreen provided in this application;

[0025] Figure 5 A cross-sectional schematic diagram of yet another embodiment of the capacitive touchscreen provided in this application;

[0026] Figure 6 Schematic diagram of an embodiment of the electronic device provided in this application;

[0027] The markings in the diagram mean:

[0028] 10. Electronic devices;

[0029] 100. Capacitive touch screen; 101. Touch area; 102. Bonding area; 110. Substrate;

[0030] 111, First surface; 112, Second surface; 120, First touch electrode layer;

[0031] 121. First touch electrode; 122. First block; 123. First touch lead;

[0032] 130. Second touch electrode layer; 131. Second touch electrode; 132. Second block;

[0033] 133. Second touch lead; 140. First insulating layer; 150. First electromagnetic layer;

[0034] 151. First electromagnetic lead group; 1511. First electromagnetic lead; 160. Second electromagnetic layer;

[0035] 161. Second electromagnetic lead group; 1611. Second electromagnetic lead; 170. Second insulating layer;

[0036] 180. External electromagnetic lead; 190. Third insulation layer / fourth insulation layer;

[0037] 200. Electromagnetic pen. Detailed Implementation

[0038] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0039] In the description of this invention, it should be understood that features specified as "first" or "second" may explicitly or implicitly include one or more of those features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] To illustrate the capacitive touchscreen and electronic device provided in this application, a detailed description is provided below in conjunction with the accompanying drawings and textual descriptions of the embodiments.

[0042] The following is for reference. Figures 1-5 A capacitive touchscreen 100 according to an embodiment of the first aspect of the present invention is described, such as Figures 1-5As shown, the capacitive touchscreen 100 includes a substrate 110. A first touch electrode layer 120, a second touch electrode layer 130, a first insulating layer 140, a first electromagnetic layer 150, a second electromagnetic layer 160, and peripheral electromagnetic leads 180 are disposed on the substrate 110. Specifically, the substrate 110 has a first surface 111 and a second surface 112. The first surface 111 is divided into a touch area 101 and a bonding area 102, wherein the bonding area 102 is located on at least one side of the touch area 101. Further, the first touch electrode layer 120 is disposed on the first surface 111. Specifically, the first touch electrode layer 120 includes a plurality of first touch electrodes 121 extending along a first direction, and adjacent first touch electrodes 121... A first block 122 is provided between the touch area 101 and the bonding area 102. Each first touch electrode 121 has a first touch lead 123 extending from it. Multiple first touch leads 123 extend from the touch area 101 to the bonding area 102. Further, a second touch electrode layer 130 is disposed on the first touch electrode layer 120. The second touch electrode layer 130 includes multiple second touch electrodes 131 extending along a second direction. A second block 132 is provided between two adjacent second touch electrodes 131. Each second touch electrode 131 has a second touch lead 133 extending from it. Multiple second touch leads 133 extend from the touch area 101 to the bonding area 102. Further, a first insulating layer 140 is disposed between the first touch electrode layer 120 and the second touch electrode layer 120. Between the control electrode layers 130, electrical isolation is achieved between the first touch electrode layer 120 and the second touch electrode layer 130. Further, the first electromagnetic layer 150 includes multiple first electromagnetic lead groups 151, each first electromagnetic lead group 151 including multiple first electromagnetic leads 1511. The vertical projection pattern of the first electromagnetic lead group 151 overlaps with the vertical projection pattern of the first block 122, and both ends of the first electromagnetic lead group 151 extend along a first direction to the bonding area 102. Further, the second electromagnetic layer 160 includes multiple second electromagnetic lead groups 161, each second electromagnetic lead group 161 including multiple second electromagnetic leads 1611. The second electromagnetic lead groups 161 extend vertically... The projected pattern overlaps with the vertically projected pattern of the second block 132, and both ends of the second electromagnetic lead group 161 extend along the second direction to the bonding area 102. Furthermore, the peripheral electromagnetic lead 180 is disposed at the edge of the touch area 101, and the width of the peripheral electromagnetic lead 180 is greater than the width of the first electromagnetic lead 1511 and the width of the second electromagnetic lead 1611. It can be understood that the peripheral electromagnetic lead 180 is used to realize the charging and communication functions of the electromagnetic pen 200. Setting the width of the peripheral electromagnetic lead 180 to be greater than the width of the first electromagnetic lead 1511 and the width of the second electromagnetic lead 1611 allows for better charging of the electromagnetic pen 200 by the peripheral electromagnetic lead 180.The second insulating layer 170 is disposed between the first electromagnetic layer 150 and the second electromagnetic layer 160 for achieving electrical isolation therebetween. Thus, it can be seen that in this solution, the first electromagnetic layer 150 and the second electromagnetic layer 160 are reasonably embedded in the capacitive touch screen 100, and the electromagnetic pen 200 is charged through the peripheral electromagnetic lead 180, so that finger touch and electromagnetic pen 200 touch are simultaneously achieved on one touch screen, the compatibility of finger touch and electromagnetic pen 200 touch is realized, and the cost is reduced on the premise of ensuring performance.

[0043] It should be noted that the bonding area 102 is located on at least one side of the touch area 101. It can be understood that the bonding area 102 may be only located on one side edge of the touch area 101. At this time, both the first electromagnetic lead 1511 and the second electromagnetic lead 1611 extend along the bonding area 102 on the same side edge of the touch area 101 to achieve bonding. Or, the bonding area 102 may be located on two side edges of the touch area 101. At this time, the first electromagnetic lead 1511 and the second electromagnetic lead 1611 respectively extend along the bonding areas 102 on different side edges of the touch area 101 to achieve their respective bondings. Or, the bonding area 102 may be located on three side edges or four side edges of the touch area 101. At this time, the first electromagnetic lead 1511 and the second electromagnetic lead 1611 respectively extend along the bonding areas 102 on different side edges of the touch area 101 to achieve their respective bondings. It can be understood that the way the bonding area 102 is arranged on the edge of the touch area 101 can be determined according to the actual use scenario and will not be specifically limited herein.

[0044] It should be noted that the number of the peripheral electromagnetic leads 180 may be one or more. It can be understood that the peripheral electromagnetic leads 180 are used to achieve the charging and communication functions of the electromagnetic pen 200. Therefore, on the premise of meeting the use scenario, the number of the peripheral electromagnetic leads 180 can be set as many as possible, and at the same time, its width can be increased as much as possible, so that the charging effect of the peripheral electromagnetic leads 180 on the electromagnetic pen 200 is better.

[0045] It should be noted that the pattern of each of the first electromagnetic leads 1511 and the second electromagnetic leads 1611 on the first surface 111 is approximately in the shape of "冂".

[0046] It should be noted that the projected patterns of the multiple first electromagnetic leads 1511 and the second electromagnetic leads 1611 on the first surface 111 are evenly arranged, so that the electromagnetic touch effect of the whole surface is more uniform and consistent, and at the same time, the influence on the appearance is reduced.

[0047] It should be noted that the peripheral electromagnetic lead 180 is located outside the first touch electrode 121, the second touch electrode 131, the first electromagnetic lead group 151 and the second electromagnetic lead group 161, that is, the peripheral electromagnetic lead 180 is arranged around the first touch electrode 121, the second touch electrode 131, the first electromagnetic lead group 151 and the second electromagnetic lead group 161.

[0048] It should be noted that the first touch electrode layer 120 and the second touch electrode layer 130 can be ITO touch electrode layers, metal mesh touch electrode layers, or touch electrode layers with structures such as nano-silver electrodes, graphene, and carbon nanotubes.

[0049] It should be noted that the substrate 110 can be a glass substrate or a flexible substrate such as PI or PET.

[0050] According to one embodiment of the present invention, such as Figure 3 As shown, it also includes a second insulating layer 170, which is disposed between the first electromagnetic layer 150 and the second electromagnetic layer 160 to achieve electrical isolation between the first electromagnetic layer 150 and the second electromagnetic layer 160.

[0051] According to one embodiment of the present invention, such as Figure 3 As shown, it also includes a third insulating layer 190. The first touch electrode layer 120, the first insulating layer 140, the second touch electrode layer 130, the third insulating layer 190, the first electromagnetic layer 150, the second insulating layer 170 and the second electromagnetic layer 160 are sequentially disposed on the first surface 111. It can be understood that the first electromagnetic layer 150 and the second electromagnetic layer 160 are disposed outside the first touch electrode layer 120 and the second touch electrode layer 130. At this time, it is equivalent to adding an electromagnetic touch functional layer as a whole on the existing capacitive touch functional layer. Therefore, it is possible to reduce the manufacturing difficulty on the basis of mature production technology, thereby reducing the overall production cost.

[0052] According to one embodiment of the present invention, such as Figure 4As shown, it also includes a fourth insulating layer 190. The first touch electrode layer 120, the first insulating layer 140, the first electromagnetic layer 150, the second insulating layer 170, the second touch electrode layer 130, the fourth insulating layer 190, and the second electromagnetic layer 160 are sequentially disposed on the first surface 111. It can be understood that the first touch electrode layer 120, the first electromagnetic layer 150, the second touch electrode layer 130, and the second electromagnetic layer 160 are sequentially staggered. At this time, the first electromagnetic layer 150 is embedded between the first touch electrode layer 120 and the second touch electrode layer 130, and electrical isolation is achieved through the first insulating layer 140 and the second insulating layer 170. Furthermore, the second electromagnetic layer 160 and the second touch electrode layer 130 are electrically isolated through the fourth insulating layer 190. This can minimize the interference of the first electromagnetic layer 150 and the second electromagnetic layer 160 on finger touch and improve the sensitivity of touch.

[0053] According to one embodiment of the present invention, such as Figure 5 As shown, the first touch electrode layer 120 and the first electromagnetic layer 150 are disposed in the same layer, and the second touch electrode layer 130 and the second electromagnetic layer 160 are disposed in the same layer. At the same time, the first insulating layer 140 electrically isolates the first touch electrode layer 120 and the first electromagnetic layer 150 disposed in the same layer from the second touch electrode layer 130 and the second electromagnetic layer 160 disposed in the same layer. It can be understood that, since the first touch electrode layer 120 and the first electromagnetic layer 150 are disposed in the same layer, and the second touch electrode layer 130 and the second electromagnetic layer 160 are disposed in the same layer, the overall thickness can be reduced, achieving a thinner and lighter effect, thereby improving the overall touch performance.

[0054] According to one embodiment of the present invention, such as Figures 1-5 As shown, each first electromagnetic lead group 151 includes three first electromagnetic leads 1511, and the distance between two adjacent first electromagnetic leads 1511 is the same. It can be understood that in a first electromagnetic lead group 151, the first electromagnetic lead 1511 located in the middle of the three first electromagnetic leads 1511 serves as the core electromagnetic lead, while the other two first electromagnetic leads 1511 located on both sides play an auxiliary function. Therefore, at least three first electromagnetic lead groups 151 constitute a first electromagnetic lead group 151. At the same time, the equidistant distance can make the electromagnetic induction effect more uniform.

[0055] It should be noted that in some other embodiments, each first electromagnetic lead group 151 may also include an odd number of five or more first electromagnetic leads 1511. In this case, the first electromagnetic lead 1511 located in the middle serves as the core electromagnetic lead, while the other first electromagnetic leads 1511 located on both sides play an auxiliary function.

[0056] It should be noted that in some other embodiments, each first electromagnetic lead group 151 also includes two or more even-numbered first electromagnetic leads 1511. In this case, the two first electromagnetic leads 1511 located in the middle serve as the core electromagnetic leads, while the two outer first electromagnetic leads 1511 play an auxiliary role.

[0057] According to one embodiment of the present invention, such as Figures 1-5 As shown, each second electromagnetic lead group 161 includes three second electromagnetic leads 1611, and the distance between two adjacent second electromagnetic leads 1611 is the same. It can be understood that in a second electromagnetic lead group 161, the second electromagnetic lead 1611 located in the middle of the three second electromagnetic leads 1611 serves as the core electromagnetic lead, while the other two second electromagnetic leads 1611 located on both sides play an auxiliary function. Therefore, at least three second electromagnetic leads 161 constitute a second electromagnetic lead group 161. At the same time, the equidistant distance can make the electromagnetic induction effect more uniform.

[0058] It should be noted that in some other embodiments, each second electromagnetic lead group 161 may also include an odd number of five or more second electromagnetic leads 1611. In this case, the second electromagnetic lead 1611 located in the middle serves as the core electromagnetic lead, while the other second electromagnetic leads 1611 located on both sides play an auxiliary function.

[0059] It should be noted that in some other embodiments, each second electromagnetic lead group 161 also includes two or more even-numbered second electromagnetic leads 1611. In this case, the two second electromagnetic leads 1611 located in the middle serve as the core electromagnetic leads, while the two outer second electromagnetic leads 1611 play an auxiliary role.

[0060] According to one embodiment of the present invention, such as Figures 1-5 As shown, the vertical projection patterns of each first block 122 and the first electromagnetic lead group 151 overlap in the vertical direction, and the vertical projection patterns of each second block 132 and the second electromagnetic lead group 161 overlap in the vertical direction. This makes the electromagnetic induction effect more uniform across the entire touch area 101. It can be understood that by partially overlapping the first electromagnetic lead group 151 and the first block 122 in the vertical direction, and partially overlapping the second electromagnetic lead group 161 and the second block 132, the obstruction of the first electromagnetic lead group 151 by the first touch electrode 121 and the obstruction of the second electromagnetic lead group 161 by the second touch electrode 131 can be minimized, thereby improving the electromagnetic induction effect.

[0061] According to one embodiment of the present invention, such as Figures 1-5 As shown, in each first electromagnetic lead group 151, a single first electromagnetic lead 1511 is located in two non-adjacent first blocks 122, and in each second electromagnetic lead group 161, a single second electromagnetic lead 1611 is located in two non-adjacent second blocks 132. By extending a first electromagnetic lead 1511 along two non-adjacent first blocks 122 and simultaneously extending a second electromagnetic lead 161 along two non-adjacent second blocks 132, the graphic arrangement of the first electromagnetic lead group 151 and the second electromagnetic lead group 161 can be made more reasonable, achieving a uniform distribution of the graphics of the first electromagnetic lead group 151 and the second electromagnetic lead group 161 across the entire surface, thereby making the electromagnetic induction effect more uniform across the entire touch area 101.

[0062] It should be noted that a single first electromagnetic lead 1511 is located in two non-adjacent first blocks 122. In this case, the two first blocks 122 are separated by at least one first block 122 and two first touch electrodes 121. It can be understood that the two first blocks 122 can also be separated by two or more first blocks 122 and four or more first touch electrodes 121, depending on the specific application scenario. No specific limitation is made here.

[0063] It should be noted that a single second electromagnetic lead 1611 is located in two non-adjacent second blocks 132. In this case, the two second blocks 132 are separated by at least one second block 132 and two second touch electrodes 131. It can be understood that the two second blocks 132 can also be separated by two or more second blocks 132 and four or more second touch electrodes 131, depending on the specific application scenario. No specific limitation is made here.

[0064] According to one embodiment of the present invention, such as Figures 1-5As shown, in each first electromagnetic lead group 151, the distance between the same first electromagnetic lead 1511 in two non-adjacent first blocks 122 is 8-12mm. It can be understood that by limiting the distance between the same first electromagnetic lead 1511 in two non-adjacent first blocks 122 to 8-12mm, the manufacturing process can be effectively considered while achieving electromagnetic touch performance, avoiding excessive manufacturing difficulty caused by excessive length of the first electromagnetic lead 1511. Similarly, in each second electromagnetic lead group 161, the distance between the same second electromagnetic lead 1611 in two non-adjacent second blocks 132 is 4-16mm. It can be understood that by limiting the distance between the same second electromagnetic lead 1611 in two non-adjacent second blocks 132 to 8-12mm, the manufacturing process can be effectively considered while achieving electromagnetic touch performance, avoiding excessive manufacturing difficulty caused by excessive length of the second electromagnetic lead 1611.

[0065] It should be noted that the distance between the same first electromagnetic lead 1511 in two non-adjacent first blocks 122 is 8mm, or 9mm, or 10mm, or 11mm, or 12mm.

[0066] It should be noted that the distance between the same second electromagnetic lead 1611 in two non-adjacent second blocks 132 is 4mm, or 5mm, or 6mm, or 7mm, or 8mm, or 9mm, or the distance between the same second electromagnetic lead 1611 in two non-adjacent second blocks 132 is 4mm, or 5mm, or 6mm, or 7mm, or 8mm, or 9mm, or the distance between the same second electromagnetic lead 1611 in two non-adjacent second blocks 132 is 4mm, or 5mm, or 6mm, or 7mm, or 8mm, or 9mm, or 9mm, or the distance between the same second electromagnetic lead 1611 in two non-adjacent second blocks 132 is 4mm, or 5mm, or 6mm, or 7mm, or 7mm, or 8mm, or 9mm, or 9mm, or the distance between the same second electromagnetic lead 1611 in two non-adjacent second blocks 132 is 4mm, or 5mm, or 6mm, or 7mm, or 8mm, or 9mm, or 9mm, or the distance between the same second electromagnetic lead 1611 in two non-adjacent second blocks 132 is ... The distance between two electromagnetic leads 1611 is 10mm, or the distance between the same second electromagnetic lead 1611 in two non-adjacent second blocks 132 is 11mm, or the distance between the same second electromagnetic lead 1611 in two non-adjacent second blocks 132 is 12mm, or the distance between the same second electromagnetic lead 1611 in two non-adjacent second blocks 132 is 13mm, or the distance between the same second electromagnetic lead 1611 in two non-adjacent second blocks 132 is 14mm, or the distance between the same second electromagnetic lead 1611 in two non-adjacent second blocks 132 is 15mm, or the distance between the same second electromagnetic lead 1611 in two non-adjacent second blocks 132 is 16mm.

[0067] According to an embodiment of the present invention, the capacitive touch screen 100 further includes a control unit (not shown in the figure). The control unit controls the electrical connection with the first touch electrode 121, the second touch electrode 131 and the electromagnetic lead group. It is understood that the capacitive touch screen 100 is time-division controlled when working. Only the capacitive sensing channel or the electromagnetic sensing channel is working at the same time. The control unit is set to turn off the finger touch function when the electromagnetic pen 200 is detected. That is, the electromagnetic pen 200 has a higher priority than finger touch. At this time, the capacitive channel function can be turned off, while the time-division control can be retained.

[0068] The following is for reference. Figure 6 An electronic device 10 according to an embodiment of a second aspect of the present invention is described, such as... Figure 6As shown, the electronic device 10 includes a capacitive touch screen 100 and an electromagnetic pen 200. By reasonably embedding a first electromagnetic layer 150 and a second electromagnetic layer 160 in the capacitive touch screen 100, and charging the electromagnetic pen 200 through the peripheral electromagnetic lead 180, finger touch and electromagnetic pen 200 touch are realized simultaneously on a single touch screen, achieving compatibility between finger touch and electromagnetic pen 200 touch, and reducing costs while ensuring performance.

[0069] The above-described capacitive touchscreen and electronic device provided in this application are preferred embodiments and should not be construed as limiting the scope of protection of this application. Those skilled in the art should know that various improvements or substitutions can be made without departing from the concept of this application, and all improvements or substitutions should be within the scope of protection of this application, that is, the scope of protection of this application should be determined by the claims.

[0070] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

Claims

1. A capacitive touchscreen, characterized in that, include: A substrate having a first surface and a second surface, the first surface being divided into a touch area and a bonding area, the bonding area being located on at least one side of the touch area; A first touch electrode layer is disposed on the first surface. The first touch electrode layer includes a plurality of first touch electrodes extending along a first direction, and there is a first block between two adjacent first touch electrodes. Each first touch electrode has a first touch lead extending out, and the plurality of first touch leads extend from the touch area to the bonding area. A second touch electrode layer is disposed on the first touch electrode layer. The second touch electrode layer includes a plurality of second touch electrodes extending along a second direction, and there is a second block between two adjacent second touch electrodes. Each second touch electrode has a second touch lead extending out, and the plurality of second touch leads extend from the touch area to the bonding area. A first insulating layer is disposed between the first touch electrode layer and the second touch electrode layer; The first electromagnetic layer includes a plurality of first electromagnetic lead groups, each first electromagnetic lead group including a plurality of first electromagnetic leads, the projection pattern of the first electromagnetic lead group in the vertical direction overlaps with the projection pattern of the first block in the vertical direction, and both ends of the first electromagnetic lead group extend along the first direction to the bonding area. The second electromagnetic layer includes a plurality of second electromagnetic lead groups, each of which includes a plurality of second electromagnetic leads. The projection pattern of the second electromagnetic lead group in the vertical direction overlaps with the projection pattern of the second block in the vertical direction, and both ends of the second electromagnetic lead group extend along the second direction to the bonding area. The peripheral electromagnetic lead is disposed at the edge of the touch area, and the width of the peripheral electromagnetic lead is greater than the width of the first electromagnetic lead and the width of the second electromagnetic lead.

2. The capacitive touchscreen as described in claim 1, characterized in that, It also includes a second insulating layer, which is disposed between the first electromagnetic layer and the second electromagnetic layer.

3. The capacitive touchscreen as described in claim 1, characterized in that, It also includes a third insulating layer, and the first touch electrode layer, the first insulating layer, the second touch electrode layer, the third insulating layer, the first electromagnetic layer, the second insulating layer and the second electromagnetic layer are sequentially disposed on the first surface.

4. The capacitive touchscreen as described in claim 1, characterized in that, It also includes a fourth insulating layer, wherein the first touch electrode layer, the first insulating layer, the first electromagnetic layer, the second insulating layer, the second touch electrode layer, the fourth insulating layer and the second electromagnetic layer are sequentially disposed on the first surface.

5. The capacitive touchscreen as described in claim 1, characterized in that, Each of the first electromagnetic lead groups includes three first electromagnetic leads, and the distance between any two adjacent first electromagnetic leads is the same, and / or, Each second electromagnetic lead group includes three second electromagnetic leads, and the distance between two adjacent second electromagnetic leads is the same.

6. The capacitive touchscreen as described in claim 1, characterized in that, The vertical projection of each of the first blocks overlaps with the vertical projection of the first electromagnetic lead group, and the vertical projection of each of the second blocks overlaps with the vertical projection of the second electromagnetic lead group.

7. The capacitive touchscreen as described in claim 1, characterized in that, In each of the first electromagnetic lead groups, a single first electromagnetic lead is located in two non-adjacent first blocks, and in each of the second electromagnetic lead groups, a single second electromagnetic lead is located in two non-adjacent second blocks.

8. The capacitive touchscreen as described in claim 7, characterized in that, In each of the first electromagnetic lead groups, the distance between the same first electromagnetic lead in two non-adjacent first blocks is 8-12 mm, and in each of the second electromagnetic lead groups, the distance between the same second electromagnetic lead in two non-adjacent second blocks is 4-16 mm.

9. The capacitive touchscreen as described in claim 1, characterized in that, It also includes a control unit, which controls the electrical connection with the first touch electrode, the second touch electrode and the electromagnetic lead group.

10. An electronic device, characterized in that, It includes a capacitive touchscreen and an electromagnetic pen, wherein the capacitive touchscreen is the capacitive touchscreen described in any one of claims 1-9.

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