Capacitive touch panel and electronic equipment

Abstract

The embodiment of the invention relates to the technical field of touch pads, and discloses a capacitive touch pad and electronic equipment. The capacitive touch pad comprises a first circuit board, a second circuit board, a support and a capacitor assembly; the support is arranged on the first surface of the first circuit board, and the second circuit board is arranged on the support in the direction away from the first surface. The second surface, facing the bracket, of the second circuit board is opposite to the first surface; the capacitor assembly comprises a conductor plate and an electrode plate arranged opposite to the conductor plate. The conductor plate is arranged on the first surface, and the electrode plate is arranged on the second surface; the electrode plate comprises a first electrode plate, a first isolation plate arranged around the edge of the first electrode plate and a second electrode plate arranged around the edge, away from the first electrode plate, of the first isolation plate; the first polar plate and the second polar plate are electrically connected with the second circuit board; therefore, the accuracy of pressure detection of the touch panel is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of touch panels, and in particular to a capacitive touch panel and an electronic device. Background Art

[0002] At present, touchpads are widely used in the field of consumer electronics, such as laptops, game controllers, etc. In order to increase the performance of the touchpad and meet the user's demand for the touchpad, a pressure sensor is added to the touchpad in the related technology to detect the pressing pressure of the touchpad, so as to achieve different operations according to different pressures. The existing pressure detection schemes of touchpads include but are not limited to the use of capacitor schemes, strain gauge schemes, pressure film schemes, etc., and the strain gauge scheme and the pressure film scheme are easily affected by the environment and temperature, resulting in poor detection effect, and generally have the disadvantages of complex structure and high cost. Compared with the strain gauge scheme and the pressure film scheme, the capacitor detection scheme has higher accuracy and lower cost, and has been widely used.

[0003] In the related art, the capacitance scheme uses two plates and a conductor plate to form a capacitor. When the touch panel surface is pressed, the distance between the two plates and the conductor plate changes, which causes the detected capacitance to change. By detecting the change in capacitance, the pressure on the touch panel can be measured. However, the accuracy of pressure detection of current capacitive touch panels is still not good enough. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a capacitive touch panel and an electronic device, thereby improving the accuracy of pressure detection of the touch panel.

[0005] To solve the above technical problems, an embodiment of the present application provides a capacitive touch panel, comprising: a first circuit board, a second circuit board, a bracket, and a capacitor assembly; the bracket is arranged on the first surface of the first circuit board, and the second circuit board is arranged on the bracket in a direction away from the first surface; the second surface of the second circuit board is arranged opposite to the first surface, and the second surface is the surface of the second circuit board facing the bracket; the capacitor assembly comprises a conductor plate and an electrode plate arranged opposite to the conductor plate; the conductor plate is arranged on the first surface, and the electrode plate is arranged on the second surface; the electrode plate comprises a first electrode plate, a first isolation plate arranged around the edge of the first electrode plate, and a second electrode plate arranged around the first isolation plate away from the edge of the first electrode plate; the first electrode plate and the second electrode plate are both electrically connected to the second circuit board.

[0006] An embodiment of the present application further provides an electronic device, including: the capacitive touch panel as described above.

[0007] In some embodiments, the first plate is a receiving plate and the second plate is a transmitting plate. In some embodiments, the electrode plate also includes a grounding plate and a second isolation plate arranged between the first isolation plate and the second electrode plate; the grounding plate is arranged around the edge of the first isolation plate away from the first electrode plate, the second isolation plate is arranged around the edge of the grounding plate away from the first isolation plate, and the second electrode plate is arranged around the edge of the second isolation plate away from the grounding plate.

[0008] In some embodiments, the surface of the electrode plate away from the second surface is in any one of the following shapes: a regular quadrilateral, a regular hexagon, a regular octagon, or a circle.

[0009] In some embodiments, the capacitive touch panel further includes a cover plate, and the cover plate is disposed on a surface of the second circuit board away from the bracket.

[0010] In some embodiments, the bracket is a rectangular parallelepiped structure having a hollow area; the conductor plate is located inside the hollow area, and the electrode plate is located inside the hollow area.

[0011] In some embodiments, the bracket includes a bracket body and N cantilever beams extending from the bracket body toward the hollow area; N is a natural number greater than 0; the second circuit board is connected to the suspended ends of the N cantilever beams of the bracket; the first circuit board is provided with N limiting holes corresponding one by one to the N cantilever beams, and the cantilever beams are used to enter the limiting holes when the second circuit board is pressed.

[0012] In some embodiments, an elastic member is disposed between the second circuit board and each of the cantilever beams.

[0013] In some embodiments, in a direction perpendicular to the first surface of the first circuit board, a projection of the electrode plate on the first circuit board is located within a projection of the conductor plate on the first circuit board.

[0014] The technical solution provided by the embodiments of the present application has at least the following advantages: The electrode plate of this embodiment includes a first electrode plate, a first isolation plate arranged around the edge of the first electrode plate, and a second electrode plate arranged around the first isolation plate away from the edge of the first electrode plate, so that the first electrode plate and the second electrode plate are a nested structure. When the user presses different areas of the touch panel, the equivalent distance changes between the first electrode plate, the second electrode plate and the conductor plate are roughly the same, and the capacitance changes are also roughly the same, which improves the accuracy of pressure detection of the touch panel. In addition, a first isolation plate is arranged between the first electrode plate and the second electrode plate, so that the first electrode plate and the second electrode plate are isolated from each other, thereby ensuring the accuracy of capacitance signal acquisition and further improving the accuracy of pressure detection of the touch panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0016] Figure 1A is a schematic diagram of a cross section of a capacitive touch panel in the related art; Figure 1B It is a planar schematic diagram of two plates on a circuit board in the related art; Figure 2A is a schematic diagram of an exploded structure of a capacitive touch panel according to an embodiment of the present application; Figure 2B is a schematic diagram of a cross section of a capacitive touch panel according to an embodiment of the present application; Figure 2C is a plan view of an electrode plate of a capacitive touch panel on a second circuit board according to an embodiment of the present application; Figure 3 is a cross-sectional view between an electrode plate and a conductor plate of a capacitive touch panel according to an embodiment of the present application; Figure 4A is a schematic diagram of the planar structure of an electrode plate according to an embodiment of the present application; Figure 4B is a schematic diagram of the planar structure of an electrode plate according to an embodiment of the present application; Figure 4C is a schematic diagram of the planar structure of an electrode plate according to an embodiment of the present application; Figure 5 is a schematic diagram of an exploded structure of a capacitive touch panel according to an embodiment of the present application; Figure 6 Schematic diagram of the planar structure of an electrode plate of a capacitive touch panel according to an embodiment of the present application. DETAILED DESCRIPTION

[0017] As can be seen from the background technology, the accuracy of pressure detection of current capacitive touch panels is relatively poor. Figure 1A As shown, it is a schematic diagram of the cross section of a capacitive touch panel in the related art, including an upper circuit board 101, a lower circuit board 102, an emitter plate 103, a receiving plate 104, a metal plate 105 and a bracket 106. The emitter plate 103, the receiving plate 104 and the metal plate 105 constitute a capacitor. When the surface of the touch panel is pressed, the emitter plate 103 and the receiving plate 104 move downward, and the distance between the emitter plate 103, the receiving plate 104 and the metal plate 105 changes, thereby causing the detected capacitance to change. By detecting the change in capacitance, the pressure on the touch panel can be measured.

[0018] Through analysis and research, it is found that when the user presses different areas of the touchpad, even if the pressing force is the same and the pressing amount of the touchpad at the pressing point is the same, the equivalent distance changes between the emitter plate 103, the receiver plate 104 and the metal plate 105 are different. Figure 1B As shown in the figure, it is a planar schematic diagram of two plates on the circuit board. For example, the user presses point A and point B with the same force respectively. When pressing point A, the pressing amount at point A is x, and the pressing amount gradually decreases in the direction away from point A. When pressing point B, the pressing amount at point B is x, and the pressing amount gradually decreases in the direction away from point B. It can be seen that point A is close to the emitter plate 103 and the receiving plate 104. When pressing point A, the emitter plate 103 and the receiving plate 104 can be driven to generate a large displacement downward, while the distance between point B and the emitter plate 103 and the receiving plate 104 is far. When pressing point B, the downward displacement of the emitter plate 103 and the receiving plate 104 is small, resulting in a large difference in the equivalent distance change between the emitter plate 103, the receiving plate 104 and the metal plate 105 under the same pressing force, which in turn leads to a large difference in the change in capacitance, making the accuracy of pressure detection of the touch panel poor.

[0019] In order to solve the problem of poor pressure detection accuracy of the capacitive scheme of the touch panel in the related art, an embodiment of the present application relates to a capacitive touch panel, including: a first circuit board, a second circuit board, a bracket, and a capacitor assembly; the bracket is arranged on the first surface of the first circuit board, and the bracket is arranged on the second circuit board in the direction away from the first surface; the second surface of the second circuit board is arranged opposite to the first surface, and the second surface is the surface of the second circuit board facing the bracket; the capacitor assembly includes a conductor plate and an electrode plate arranged opposite to the conductor plate; the conductor plate is arranged on the first surface, and the electrode plate is arranged on the second surface; the electrode plate includes a first electrode plate, a first isolation plate arranged around the edge of the first electrode plate, and a second electrode plate arranged around the first isolation plate away from the edge of the first electrode plate; the first electrode plate and the second electrode plate are both electrically connected to the second circuit board.

[0020] The capacitive touch panel of this embodiment is configured to have an electrode plate including a first electrode plate, a first isolation plate arranged around the edge of the first electrode plate, and a second electrode plate arranged around the first isolation plate away from the edge of the first electrode plate, that is, the first electrode plate and the second electrode plate are a nested structure, so that when the user presses different areas of the touch panel, the equivalent distance changes between the first electrode plate, the second electrode plate and the conductor plate are roughly the same, and the changes in capacitance are also roughly the same, thereby improving the accuracy of pressure detection of the touch panel. In addition, a first isolation plate is provided between the first electrode plate and the second electrode plate, so that the first electrode plate and the second electrode plate are isolated from each other, thereby ensuring the accuracy of capacitance signal acquisition, and further improving the accuracy of pressure detection of the touch panel.

[0021] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. However, it will be appreciated by those skilled in the art that in the present application, many technical details are proposed in order to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed in the present application can also be implemented. The division of the following embodiments is for the convenience of description, and the specific implementation of the present application should not be construed as any limitation, and the various embodiments can be combined and referenced with each other under the premise of no contradiction.

[0022] like Figure 2A FIG. 1 is a schematic diagram of the exploded structure of the capacitive touch panel of this embodiment. Figure 2B , which is a schematic diagram of a cross section of a capacitive touch panel of this embodiment, as shown in Figure 2C The capacitive touch panel of this embodiment includes: a first circuit board 201, a second circuit board 202, a bracket (not shown), and a capacitor assembly (not shown).

[0023] Specifically, a bracket is arranged on the first surface of the first circuit board 201, and a second circuit board 202 is arranged on the bracket in a direction away from the first surface; the second surface of the second circuit board 202 is arranged opposite to the first surface, and the second surface is the surface of the second circuit board 202 facing the bracket; the capacitor assembly includes a conductor plate 203 and an electrode plate 204 arranged opposite to the conductor plate 203; the conductor plate 203 is arranged on the first surface, and the electrode plate 204 is arranged on the second surface; the electrode plate 204 includes a first electrode plate 2041, a first isolation plate 2042 arranged around the edge of the first electrode plate 2041, and a second electrode plate 2043 arranged around the first isolation plate 2042 away from the edge of the first electrode plate 2041; the first electrode plate 2041 and the second electrode plate 2043 are both electrically connected to the second circuit board 202.

[0024] like Figure 3 As shown in FIG. 1 , it is a cross-sectional view of the electrode plate and the conductor plate of this embodiment. The electric field lines between the electrode plate and the conductor plate are shown in FIG. Figure 3 As shown in the figure, the first electrode 2041 is a receiving electrode and the second electrode 2043 is an emitting electrode. The electric field lines between the first electrode 2041, the second electrode 2043 and the conductor plate 203 first pass through the second electrode 2043 to the conductor plate 203, and then to the first electrode 2041, so that the first electrode 2041 and the second electrode 2043 are coupled through the conductor plate 203 to form a capacitor.

[0025] The first electrode plate 2041 and the second electrode plate 2043 of this embodiment are nested structures. When the user presses different areas of the touch panel, the equivalent distance changes between the first electrode plate 2041, the second electrode plate 2043 and the conductor plate 203 are substantially the same, and the capacitance changes are also substantially the same, thereby improving the accuracy of pressure detection of the touch panel. In addition, a first isolation plate 2042 is provided between the first electrode plate 2041 and the second electrode plate 2043, so that the first electrode plate 2041 and the second electrode plate 2043 are isolated from each other, thereby ensuring the accuracy of the capacitance signal acquisition, and further improving the accuracy of pressure detection of the touch panel.

[0026] Specifically, the electrode plate 204 in this embodiment is integrally formed with the second circuit board 202, and the conductor plate 203 is integrally formed with the first circuit board 201, thereby saving the volume of the touch panel and being convenient to manufacture and connect with the corresponding circuit board; at the same time, the electrode plate 204 is arranged in the central area of ​​the second circuit board 202, and the conductor plate 203 is arranged in the central area of ​​the first circuit board 201, which is more conducive to improving the accuracy of touch panel pressure detection.

[0027] Specifically, if Figure 2C As shown, when the user presses point C and point D respectively with the same force, when pressing point C, the pressing amount at point C is y, and the pressing amount gradually decreases in the direction away from point C. When pressing point D, the pressing amount at point D is y, and the pressing amount gradually decreases in the direction away from point D. It can be seen that due to the nested structure of the present embodiment, when points C and D are pressed, both can drive the first electrode 2041 and the second electrode 2043 of approximately the same area to move downward, so that under the same pressing force, the equivalent distance changes between the first electrode 2041, the second electrode 2043 and the conductor plate 203 are approximately the same, and the change in capacitance is also approximately the same, thereby improving the accuracy of pressure detection of the touch panel.

[0028] In actual applications, if the touchpad is set on a laptop, the user can set different operations according to different pressing pressures, such as screenshots, vibration, volume increase, volume decrease, screen brightness increase, screen brightness decrease, etc.; if the touchpad is installed on a game controller, the user's different pressing pressures on the touchpad can trigger different game skills. Therefore, this embodiment can meet the current user's increasingly high requirements for touchpad pressure detection accuracy through the above-mentioned nested electrode plate 204 design.

[0029] This embodiment takes into account that the receiving plate is connected to the processing unit, and the receiving plate is responsible for transmitting the capacitive signal received from the transmitting plate to the processing unit. Therefore, the first plate 2041 of this embodiment is the receiving plate, and the second plate 2043 is the transmitting plate, that is, the receiving plate is arranged inside the nested structure, which can effectively isolate the receiving plate from the interference of external signals, and is more conducive to improving the anti-interference ability of the capacitive touch panel. In other embodiments, the positions of the transmitting plate and the receiving plate can also be interchanged, such as the first plate 2041 is the transmitting plate and the second plate 2043 is the receiving plate.

[0030] Specifically, the surface of the electrode plate 204 away from the second surface is in any of the following shapes: a regular quadrilateral, a regular hexagon, a regular octagon, or a circle. This embodiment is described by assuming that the surface of the electrode plate 204 away from the second surface is a circle. Figure 2C As shown, the electrode plate 204 is a nested circular structure, but in actual applications, the electrode plate 204 can also be as follows Figure 4A The regular quadrilateral structure shown can also be Figure 4B The regular hexagonal structure shown in Figure 4C The regular octagonal structure shown.

[0031] It should be noted that the surface of the electrode plate 204 away from the second surface can be determined as the third surface, and the accuracy of the touch panel pressure detection is related to the surface area of ​​the third surface of the electrode plate 204. The larger the surface area of ​​the third surface, the higher the accuracy of the touch panel pressure detection, and the smaller the surface area of ​​the third surface, the lower the accuracy of the touch panel pressure detection. In this embodiment, the surface area of ​​the third surface needs to be set as large as possible to improve the accuracy of the touch panel pressure detection.

[0032] Specifically, Figure 2A As shown, the capacitive touch panel further includes a cover plate 200, which is disposed on a surface of the second circuit board 202 away from the bracket. The cover plate 200 is the area where the user touches the touch panel. By disposing the cover plate 200 on the surface of the second circuit board 202 away from the bracket, when the user presses the touch panel, the second circuit board 202 drives the electrode plate 204 structure to be pressed, thereby changing the capacitance of the capacitor assembly.

[0033] In other embodiments, the cover plate 200 may be disposed on a surface of the first circuit board 201 away from the bracket, such as Figure 5 As shown, it is a schematic diagram of the structure of a capacitive touch panel, including: a first circuit board 201, a second circuit board 202, a bracket (not marked in the figure), and a capacitor component (not marked in the figure); a bracket is arranged between the first circuit board 201 and the second circuit board 202, a conductor plate 203 is arranged on a first surface of the first circuit board 201 close to the bracket, and an electrode plate 204 is arranged on a second surface of the second circuit board 202 close to the bracket. The first surface and the second surface are arranged opposite to each other, and the structure of the electrode plate 204 is the same as that in the above embodiment Figure 2C The structures shown are the same and will not be described again. Figure 5 The difference from the above embodiment is that the positions of the conductor plate 203 and the electrode plate 204 are interchanged, that is, when the user presses the cover plate 200 of the touch panel, the first circuit board 201 drives the conductor plate 203 structure to be pressed, thereby changing the capacitance of the capacitor assembly.

[0034] Specifically, Figure 2A , Figure 5 As shown, the bracket of this embodiment is a rectangular parallelepiped structure with a hollow area; the conductor plate 203 is located inside the hollow area, and the electrode plate 204 is located inside the hollow area, that is, the conductor plate 203 is arranged on the part of the first surface located in the hollow area, and the electrode plate 204 is arranged on the part of the second surface located in the hollow area. The bracket includes a bracket body 205 and N cantilever beams 206 extending from the bracket body 205 toward the hollow area; N is a natural number greater than 0.

[0035] In one embodiment, Figure 2A In the touchpad shown, the second circuit board 202 is connected to the suspended ends of N cantilever beams 206 of the bracket; the first circuit board 201 is provided with N limiting holes 208 corresponding to the N cantilever beams 206, and the cantilever beams 206 are used to enter the limiting holes 208 when the second circuit board 202 is pressed. Figure 2AIn the embodiment, the number of cantilever beams 206 is 4 and they are respectively arranged at the four vertices of the bracket. In practical applications, the position and number of cantilever beams 206 are set according to actual needs, and this embodiment does not make specific restrictions. Specifically, in this embodiment, in the direction perpendicular to the first circuit board 201, the projection of the second circuit board 202 on the first circuit board 201 is located inside the hollow area. When the user presses the touch pad, the surface of the cover plate 200 is subjected to pressure, and the pressure is transmitted to the suspended end of the cantilever beam 206 through the second circuit board 202, causing the cantilever beam 206 to bend and deform, and the cover plate 200 and the second circuit board 202 move downward. At the same time, the cantilever beam 206 is bent and deformed under the pressure and enters the corresponding limit hole 208. At this time, the distance between the electrode plate 204 and the conductor plate 203 becomes smaller, and the capacitance of the capacitor assembly becomes larger. The pressure on the corresponding touch pad can be determined by detecting the value of the capacitance between the conductor plate 203 and the electrode plate 204. In this embodiment, an elastic member 207 is disposed between the second circuit board 202 and each cantilever beam 206; the elastic member 207 may be an elastic structure such as a spring, a silicone pad, or a sponge, so as to protect the second circuit board 202 and the cantilever beam 206 and improve the stability of the touch panel. It should be noted that in a direction perpendicular to the first circuit board 201, the projection of the second circuit board 202 on the first circuit board 201 is located inside the hollow area.

[0036] In another embodiment, Figure 5As shown in the structural schematic diagram of the capacitive touch panel, the first circuit board 201 is connected to the suspended ends of N cantilever beams 206 of the bracket; the second circuit board 202 is provided with N limiting holes 208 corresponding to the N cantilever beams 206 one by one, and the cantilever beams 206 are used to enter the limiting holes 208 when the first circuit board 201 is pressed. Specifically, in this embodiment, in a direction perpendicular to the second circuit board 202, the projection of the first circuit board 201 on the second circuit board 202 is located inside the hollow area. When the user presses the touch pad, after the surface of the cover plate 200 is subjected to pressure, the pressure is transmitted to the suspended end of the cantilever beam 206 through the first circuit board 201, causing the cantilever beam 206 to bend and deform, and the cover plate 200 and the first circuit board 201 move downward. At the same time, the cantilever beam 206 bends and deforms under the pressure to enter the corresponding limit hole 208. At this time, the distance between the electrode plate 204 and the conductor plate 203 becomes smaller, and the capacitance of the capacitor assembly becomes larger. By detecting the value of the capacitance between the conductor plate 203 and the electrode plate 204, the pressure on the corresponding touch pad can be determined. An elastic member 207 is provided between the first circuit board 201 and each cantilever beam 206 of this embodiment. The elastic member 207 can be an elastic structure such as a spring, a silicone pad, a sponge, etc., so as to protect the first circuit board 201 and the cantilever beam 206 and improve the stability of the touch pad. It should be noted that, in a direction perpendicular to the second circuit board 202 , the projection of the first circuit board 201 on the second circuit board 202 is located inside the hollow area.

[0037] Specifically, in this embodiment, in a direction perpendicular to the first surface of the first circuit board 201, the projection of the electrode plate 204 on the first circuit board 201 is located within the projection of the conductor plate 203 on the first circuit board 201. That is, from the direction of the top view, the area of ​​the conductor plate 203 is larger than the area of ​​the electrode plate 204 and the conductor plate 203 covers the electrode plate 204, so that each area of ​​the first electrode plate 2041 and the second electrode plate 2043 in the electrode plate 204 is arranged opposite to the conductor plate 203, so that when performing capacitance detection, the accuracy of detecting capacitance conversion is high, and the accuracy of pressure detection of the touch panel is improved.

[0038] In one embodiment, Figure 6, which is a schematic diagram of the planar structure of the electrode plate in the capacitive touch panel of the present embodiment. Specifically, the electrode plate 204 not only includes the first electrode plate 2041, the first isolation plate 2042, and the second electrode plate 2043, but also includes a grounding plate 2044 and a second isolation plate 2045 disposed between the first isolation plate 2042 and the second electrode plate 2043; the grounding plate 2044 is disposed around the edge of the first isolation plate 2042 away from the first electrode plate 2041, the second isolation plate 2045 is disposed around the edge of the grounding plate 2044 away from the first isolation plate 2042, and the second electrode plate 2043 is disposed around the edge of the second isolation plate 2045 away from the grounding plate 2044. Figure 6 The electrode plate 204 is circular for example. The electrode plate 204 may also be a regular quadrilateral, a regular hexagon, a regular octagon, etc.

[0039] This embodiment nests the first electrode 2041, the first isolation plate 2042, the grounding plate 2044, the second isolation plate 2045, and the second electrode 2043 in sequence, which not only improves the accuracy of pressure detection of the touch panel, but also isolates the first electrode 2041 and the second electrode 2043 through the first isolation plate 2042, the grounding plate 2044, and the second isolation plate 2045, thereby further improving the accuracy of capacitance signal acquisition.

[0040] Specifically, the first plate 2041 of the present embodiment is a receiving plate, and the second plate 2043 is an emitting plate, that is, the receiving plate is arranged at the innermost part of the nested structure, and then the first isolation plate 2042, the grounding plate 2044, and the second isolation plate 2045 are arranged in sequence, which not only isolates the first plate 2041 and the second plate 2043, but also isolates the direct coupling between the first plate 2041 and the second plate 2043 by the setting of the grounding plate 2044, so that the receiving plate can be better effectively isolated from the interference of the emitting plate and the external signal, and the proportion of the effective signal is increased, which is more conducive to improving the anti-interference ability of the capacitive touch panel. In other embodiments, the positions of the emitting plate and the receiving plate can also be interchanged, such as the first plate 2041 is the emitting plate and the second plate 2043 is the receiving plate.

[0041] On the other hand, an embodiment of the present application further provides an electronic device, including: the above-mentioned capacitive touch panel.

[0042] Compared with the related art, the electronic device provided in this embodiment of the present application is provided with the capacitive touch panel provided in the aforementioned embodiment. Therefore, it also has the technical effects provided in the aforementioned embodiment, which will not be described in detail here.

[0043] The division of various components above is only for clear description. When implemented, they can be combined into one component or some components can be split and decomposed into multiple components. As long as they include the same logical relationship, they are all within the protection scope of this embodiment.

[0044] Those skilled in the art will appreciate that the above embodiments are specific embodiments for implementing the present application, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present application.

Claims

1. A capacitive touch panel, characterized in that: include: A first circuit board, a second circuit board, a bracket, and a capacitor assembly; The bracket is arranged on the first surface of the first circuit board, and the second circuit board is arranged on the bracket in a direction away from the first surface; the second surface of the second circuit board is arranged opposite to the first surface, and the second surface is the surface of the second circuit board facing the bracket; The capacitor assembly includes a conductor plate and an electrode plate arranged opposite to the conductor plate; The conductor plate is arranged on the first surface, and the electrode plate is arranged on the second surface; The electrode plate includes a first electrode plate, a first isolation plate arranged around the edge of the first electrode plate, and a second electrode plate arranged around the first isolation plate and away from the edge of the first electrode plate; the first electrode plate and the second electrode plate are both electrically connected to the second circuit board.

2. The capacitive touch panel according to claim 1, characterized in that: The first plate is a receiving plate, and the second plate is a transmitting plate.

3. The capacitive touch panel according to claim 1, characterized in that: The electrode plate further comprises a ground plate and a second isolation plate disposed between the first isolation plate and the second electrode plate; The grounding plate is arranged around the edge of the first isolation plate away from the first electrode plate, the second isolation plate is arranged around the edge of the grounding plate away from the first isolation plate, and the second electrode plate is arranged around the edge of the second isolation plate away from the grounding plate.

4. The capacitive touch panel according to any one of claims 1 to 3, characterized in that: The surface of the electrode plate away from the second surface is in any one of the following shapes: a regular quadrilateral, a regular hexagon, a regular octagon, or a circle.

5. The capacitive touch panel according to claim 1, characterized in that: The capacitive touch panel further includes a cover plate, which is disposed on a surface of the second circuit board away from the bracket.

6. The capacitive touch panel according to claim 1, characterized in that: The bracket is a rectangular parallelepiped structure with a hollow area; the conductor plate is located inside the hollow area, and the electrode plate is located inside the hollow area.

7. The capacitive touch panel according to claim 6, characterized in that: The support comprises a support body and N cantilever beams extending from the support body toward the hollow area; N is a natural number greater than 0; The second circuit board is connected to the suspended ends of the N cantilever beams of the bracket; the first circuit board is provided with N limiting holes corresponding to the N cantilever beams one by one, and the cantilever beams are used to enter the limiting holes when the second circuit board is pressed.

8. The capacitive touch panel according to claim 7, characterized in that: An elastic member is arranged between the second circuit board and each of the cantilever beams.

9. The capacitive touch panel according to any one of claims 1 to 3 and 5 to 8, characterized in that: In a direction perpendicular to the first surface of the first circuit board, a projection of the electrode plate on the first circuit board is located within a projection of the conductor plate on the first circuit board.

10. An electronic device, characterized in that: include: A capacitive touch panel as claimed in any one of claims 1 to 9.

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