Capacitive Pen and Method for Manufacturing the Same

Abstract

The present invention discloses a capacitive pen and a manufacturing method thereof, including: a bracket, on the surface of which a first antenna and a second antenna are provided, one of the first antenna and the second antenna being a transmitting antenna for transmitting signals, and the other of the first antenna and the second antenna being a receiving antenna for receiving signals; wherein the signals include the inclination information of the pen tip of the capacitive pen; a pen tip, which is arranged at one end of the bracket, and the first antenna and the second antenna are arranged close to the pen tip; a control board, which is arranged inside the bracket, and the first antenna and the second antenna are respectively electrically connected to the control board. The capacitive pen according to the embodiment of the present invention can improve the accuracy of inclination detection and correction, reduce the assembly difficulty, and further improve the reliability and consistency of the capacitive pen.

Description

Technical Field

[0001] The present invention relates to the field of styluses, and more particularly to a capacitive pen and a manufacturing method thereof. Background Art

[0002] At present, capacitive pens have gradually become standard configurations for mobile phones and tablet computers, and are also widely used in fields such as finance and education. Among them, active capacitive pens can act as signal transmitters to send signals, which are received by a touch panel for coordinate positioning to obtain a writing effect similar to the actual nib thickness. However, with the continuous improvement of the writing accuracy requirements for capacitive pens, the inclination detection and correction of the capacitive pen nib have become technical problems that urgently need to be solved.

[0003] In order to solve the above technical problems, the prior art improves the accuracy of inclination detection by improving the transmitting antenna and receiving antenna on the active capacitive pen. For example, the transmitting antenna and the receiving antenna are arranged together on a part with a smaller diameter. This solution requires a separate part to carry the two sets of antennas, and the diameter of the part also needs to be small enough to be assembled in the pen body, which not only increases the production and processing costs, but also reduces the signal detection accuracy because the antenna arrangement area is limited to a very small part; there is also a solution that uses metal springs or metal sheets as the transmitting antenna or receiving antenna, which increases the number of parts of the entire product, making the assembly difficult and reducing the reliability and consistency of the product. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art, that is, the problems of small size of the transmitting antenna and receiving antenna in the existing capacitive pen, difficult assembly, and low detection accuracy.

[0005] To this end, the present invention provides a capacitive pen. According to the capacitive pen of the embodiment of the present invention, it has high accuracy in inclination detection and correction, a simple assembly method, and high reliability and consistency of the capacitive pen.

[0006] The present invention also aims to provide a manufacturing method for the above capacitive pen.

[0007] According to the capacitive pen of the embodiment of the present invention, it includes: a bracket, on the surface of the bracket, a first antenna and a second antenna are provided, one of the first antenna and the second antenna is a transmitting antenna for transmitting signals, and the other of the first antenna and the second antenna is a receiving antenna for receiving signals; wherein, the signal includes the inclination information of the nib of the capacitive pen; a nib, which is arranged at one end of the bracket, and the first antenna and the second antenna are arranged close to the nib; a control board, which is arranged inside the bracket, and the first antenna and the second antenna are respectively electrically connected to the control board.

[0008] According to the capacitive pen of an embodiment of the present invention, by setting one of the first antenna and the second antenna disposed on the surface of the bracket as the transmitting antenna for the inclination correction signal, and setting the other of the first antenna and the second antenna as the receiving antenna for the inclination correction signal, the sizes of the first antenna and the second antenna formed on the surface of the bracket are increased, thereby improving the accuracy of inclination detection and correction, reducing the assembly difficulty, and further improving the reliability and consistency of the capacitive pen.

[0009] In some embodiments, the first antenna and the second antenna are respectively solidified on the surface of the bracket.

[0010] In some embodiments, the first antenna and the second antenna are respectively solidified on the outer surface of the bracket.

[0011] In some embodiments, the first antenna is connected to the control board through a first wire, and the first wire is formed on the surface of the bracket; the second antenna is connected to the control board through a second wire, and the second wire is formed on the surface of the bracket.

[0012] In some alternative embodiments, the first antenna is formed in a ring shape, the second antenna is formed in a ring shape, and the first antenna and the second antenna are spaced apart in the length direction of the bracket.

[0013] In some alternative embodiments, the first antenna is closer to the head of the pen tip than the second antenna, and a first insulating region penetrating the second antenna in the length direction of the bracket is further provided on the outer wall of the bracket, and at least a part of the first wire is disposed in the first insulating region.

[0014] Optionally, a second insulating region is provided between the first antenna and the second antenna, and the second insulating region communicates with the first insulating region.

[0015] In some alternative embodiments, the bracket includes a frustum portion and a main body portion connected to the bottom of the frustum portion, the first antenna and the second antenna are both disposed on the outer surface of the frustum portion, and the pen tip extends from the top of the frustum portion.

[0016] In some alternative embodiments, the control board is disposed in the main body portion, the first wire is disposed outside the frustum portion and the main body portion, and the second wire is disposed outside the main body portion.

[0017] In some alternative embodiments, the bracket is an injection molded part containing metal particles, the first antenna, the second antenna, the first wire and the second wire are all formed layers after laser engraving on the bracket, and a metal coating is covered on the formed layer.

[0018] According to the capacitive pen of an embodiment of the present invention, by connecting the first antenna and the second antenna to a control board via a first wire and a second wire respectively, the purpose of signal transmission and signal reception can be achieved. In this way, the connecting wires can also be formed on the bracket and integrated with the bracket, thereby further simplifying the assembly process of the capacitive pen, reducing costs, and having a simple forming process.

[0019] By setting the first antenna and the second antenna in a ring shape, the areas of the first antenna and the second antenna can be increased as much as possible, thereby increasing the intensity and accuracy of the inclination correction signal transmission, and thus improving the performance of the capacitive pen. The first antenna and the second antenna are spaced apart in the length direction of the bracket, which can minimize the mutual interference between the transmitting antenna and the receiving antenna, thereby minimizing the interference to the signal and minimizing the impact on the use performance of the capacitive pen.

[0020] By arranging the first antenna and the second antenna on the outer wall of the frustum part, and the pen tip extends from the top of the frustum part, the first antenna and the second antenna will be able to be closer to the pen tip provided at the top of the frustum part, which can minimize the interference of external signals and improve the sensitivity of the capacitive pen.

[0021] By setting the bracket as an injection molded part containing metal particles, the first antenna, the second antenna, the first wire, and the second wire are all formed layers after laser engraving on the bracket, and a metal coating can further be formed on the formed layer. Thus, more design space can be provided for the transmitting antenna and the receiving antenna, improving the accuracy of inclination correction and the performance of the capacitive pen. Moreover, the antenna or wire formed by laser engraving can avoid the interference of internal components, thereby further improving the accuracy of inclination correction and further improving the performance of the capacitive pen.

[0022] By forming the first welding part and the second welding part into formed layers after laser engraving, the first welding part and the second welding part can both be integrally formed with the bracket, reducing the assembly steps, thereby improving production efficiency and reducing production costs.

[0023] The manufacturing method of the capacitive pen according to an embodiment of the present invention includes the following steps: providing a bracket for carrying the pen core of the capacitive pen; providing a first antenna and a second antenna for being respectively formed on the surface of the bracket; providing a pen tip disposed at one end of the bracket, and arranging the first antenna and the second antenna close to the pen tip; providing a control board disposed inside the bracket, and electrically connecting the first antenna and the second antenna to the control board respectively.

[0024] The manufacturing method of a capacitive pen according to an embodiment of the present invention includes providing a first antenna and a second antenna, which are respectively formed on the surface of the bracket. Thus, one of the first antenna and the second antenna can be used as the transmitting antenna of the capacitive pen for transmitting the inclination correction signal, and the other can be used as the receiving antenna of the capacitive pen for receiving the inclination correction signal. Furthermore, not only can the size of the transmitting antenna and the receiving antenna be greatly increased, and the accuracy of inclination detection and correction be improved, but also the number of parts of the capacitive pen can be reduced, the assembly difficulty can be lowered, and the reliability and consistency of the capacitive pen can be further improved.

[0025] In some embodiments, a first wire and a second wire are provided. The first wire is respectively connected to the first antenna and the control board, and the second wire is respectively connected to the second antenna and the control board.

[0026] In some embodiments, the bracket is injection molded with a plastic containing metal particles.

[0027] Specifically, the first antenna, the second antenna, the first wire, and the second wire are all formed by laser engraving on the bracket; after forming, the first antenna, the second antenna, the first wire, and the second wire are plated to form metal coatings on their respective surfaces.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Brief Description of the Drawings

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, where:

[0030] Figure 1 is a schematic diagram of a capacitive pen according to an embodiment.

[0031] Figure 2 is a perspective view of a capacitive pen according to an embodiment in one direction.

[0032] Figure 3 is a perspective view of a capacitive pen according to an embodiment in another direction.

[0033] Reference Signs:

[0034] Capacitive pen 100,

[0035] Bracket 1, first antenna 11, second antenna 12, first wire 13, second wire 14, first insulating region 15, second insulating region 16, frustum portion 17, main body portion 18, first welding portion 181, second welding portion 182,

[0036] Pen tip 2,

[0037] Control board 3. Specific embodiments

[0038] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where 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 drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0039] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "length", "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0041] Next, refer to Figures 1 - 3 Describe the structure of the capacitive pen 100 according to an embodiment of the present invention.

[0042] The capacitive pen 100 according to an embodiment of the present invention, as Figure 1 shown, includes: a bracket 1, a first antenna 11, a second antenna 12, a pen tip 2, and a control board 3. The first antenna 11 and the second antenna 12 are disposed on the surface of the bracket 1. One of the first antenna 11 and the second antenna 12 is a transmitting antenna for transmitting an inclination correction signal, and the other of the first antenna 11 and the second antenna 12 is a receiving antenna for receiving an inclination correction signal. Wherein, the signal includes the inclination information of the pen tip of the capacitive pen. The pen tip 2 is disposed at one end of the bracket 1, and the first antenna 11 and the second antenna 12 are disposed close to the pen tip 2. The control board 3 is disposed inside the bracket 1, and the first antenna 11 and the second antenna 12 are respectively electrically connected to the control board 3.

[0043] It can be understood that one of the first antenna 11 and the second antenna 12 disposed on the surface of the bracket 1 is the transmitting antenna of the capacitive pen 100 for transmitting the inclination correction signal, and the other of the first antenna 11 and the second antenna 12 is the receiving antenna of the capacitive pen 100 for receiving the inclination correction signal. By disposing the first antenna 11 and the second antenna 12 on the surface of the bracket 1 in this way, the sizes of the first antenna 11 and the second antenna 12 can be greatly increased to a certain extent, that is, the areas of the transmitting antenna and the receiving antenna are increased, thereby improving the signal transmission accuracy and optimizing the performance of the capacitive pen 100.

[0044] It should be noted that the first antenna 11 and the second antenna 12 can be disposed on the outer surface of the bracket 1 or on the inner surface of the bracket 1, and no specific limitation is made here.

[0045] According to the capacitive pen 100 of the embodiment of the present invention, by setting one of the first antenna 11 and the second antenna 12 disposed on the surface of the bracket 1 as the transmitting antenna of the inclination correction signal and setting the other of the first antenna 11 and the second antenna 12 as the receiving antenna of the inclination correction signal, the sizes of the first antenna 11 and the second antenna 12 formed on the surface of the bracket 1 are increased, thereby improving the accuracy of inclination detection and correction, reducing the assembly difficulty, and further improving the reliability and consistency of the capacitive pen.

[0046] In one embodiment, the first antenna 11 is used as the receiving antenna to receive the inclination correction information, and the second antenna 12 is used as the transmitting antenna to transmit the inclination correction information. The first antenna 11 as the receiving antenna and the second antenna 12 as the transmitting antenna and the pen tip 2 are all disposed on the bracket 1 to form an integral body, greatly increasing the areas of the transmitting antenna and the receiving antenna, thereby improving the signal transmission accuracy and optimizing the performance of the capacitive pen 100.

[0047] In some embodiments, as Figure 1 shown, the first antenna 11 and the second antenna 12 are respectively solidified on the surface of the bracket 1. That is, the bracket 1 is used to carry the first antenna 11 and the second antenna 12, and there is no need to separately configure parts for carrying the first antenna 11 and the second antenna 12, so that the number of parts can be reduced, the assembly man-hours can be reduced, and the material cost and time cost can both be reduced. At the same time, the simplification of the assembly steps is beneficial to reducing the bad risk during assembly, and further improving the reliability and consistency of the capacitive pen 100.

[0048] In addition, the first antenna 11 and the second antenna 12 are respectively solidified on the outer surface of the bracket 1. In this way, during the signal sending or receiving process, the first antenna 11 and the second antenna 12 solidified on the outer surface of the bracket 1 have less signal interference, which is beneficial to the timeliness and accuracy of signal transmission.

[0049] Of course, the present invention is not limited thereto. The first antenna 11 and the second antenna 12 can also be a split structure relative to the bracket 1. The first antenna 11 and the second antenna 12 are respectively formed as separate components and then arranged on the bracket 1, whereby the configuration of the first antenna 11 and the second antenna 12 can be made more flexible.

[0050] In some embodiments, as Figure 1 shown, the first antenna 11 is connected to the control board 3 through the first wire 13, and the first wire 13 is formed on the surface of the bracket 1. The second antenna 12 is connected to the control board 3 through the second wire 14, and the second wire 14 is formed on the surface of the bracket 1. In this way, the first antenna 11 and the second antenna 12 can be respectively connected to the control board 3 through the first wire 13 and the second wire 14 formed on the surface of the bracket 1, so as to achieve the purpose of signal transmission and signal reception. Optionally, the first wire 13 and the second wire 14 are also formed on the bracket 1 and are integrally formed with the bracket 1, whereby the assembly process of the capacitive pen 100 can be further simplified, the cost can be reduced, and the forming process is simple.

[0051] Of course, the present invention is not limited thereto. The first antenna 11 can also be connected to the control board 3 through a wire arranged inside the bracket 1, and the second antenna 12 can also be connected to the control board 3 through a wire arranged inside the bracket 1.

[0052] In one embodiment, as Figures 1 - 3 shown, the first antenna 11 is formed in a ring shape, the second antenna 12 is formed in a ring shape, and the first antenna 11 and the second antenna 12 are arranged at intervals in the length direction of the bracket 1. It can be understood that setting the first antenna 11 and the second antenna 12 in a ring shape can increase the area of the first antenna 11 and the second antenna 12 as much as possible, thereby increasing the intensity and accuracy of the inclination correction signal transmission, and thus improving the performance of the capacitive pen 100. The first antenna 11 and the second antenna 12 are arranged at intervals in the length direction of the bracket 1, which can reduce the mutual interference between the transmitting antenna and the receiving antenna as much as possible, thereby reducing the interference to the signal as much as possible and reducing the influence on the use performance of the capacitive pen 100 as much as possible.

[0053] Of course, the present invention is not limited thereto. The first antenna 11 can also be formed into other shapes. For example, on the surface perpendicular to the length direction of the bracket 1, the first antenna 11 can be arc-shaped or semi-circular, and the first antenna 11 is arranged in a fitting manner on the surface of the bracket 1. In addition, the second antenna 12 can also be formed into other shapes. For example, on the surface perpendicular to the length direction of the bracket 1, the second antenna 12 can be arc-shaped or semi-circular, and the second antenna 12 is arranged in a fitting manner on the surface of the bracket 1.

[0054] Optionally, as Figure 2 and Figure 3As shown, the first antenna 11 is closer to the head of the pen tip 2 than the second antenna 12, and a first insulating area 15 is further provided on the outer wall of the bracket 1, which penetrates the second antenna 12 along the length direction of the bracket 1, and at least a part of the first wire 13 is provided in the first insulating area 15. In this way, the first insulating area 15 which penetrates the second antenna 12 along the length direction of the bracket 1 can avoid the connection between the first wire 13 and the second antenna 12 as much as possible, thereby affecting the normal transmission of the signal.

[0055] In one embodiment, Figures 1 - 3 As shown, the size of the second antenna 12 in the length direction of the bracket 1 is larger than the size of the first antenna 11 in the length direction of the bracket 1. In this way, the antenna arrangement surface of the second antenna 12 is increased, thereby increasing the sensitivity of signal transmission and improving the accuracy of the capacitive stylus 100. Moreover, the appearance of the product is more beautiful. In another embodiment, the size of the first antenna 11 in the length direction of the bracket 1 can also be set to be larger than the size of the second antenna 12 in the length direction of the bracket 1 according to needs.

[0056] Alternatively, if Figures 1 - 3 As shown, a second insulating region 16 is provided between the first antenna 11 and the second antenna 12, and the second insulating region 16 is connected to the first insulating region 15. This can avoid the influence of signal transmission caused by mutual conduction between the first antenna 11 and the second antenna 12 as much as possible, and reduce signal interference.

[0057] In some optional embodiments, such as Figure 1 As shown, the bracket 1 includes a truncated cone portion 17 and a main body portion 18 connected to the bottom of the truncated cone portion 17, the first antenna 11 and the second antenna 12 are both arranged on the outer surface of the truncated cone portion 17, and the pen tip 2 extends from the top of the truncated cone portion 17. In this way, the first antenna 11 and the second antenna 12 on the outer wall of the truncated cone portion 17 will be able to be closer to the pen tip 2 on the top of the truncated cone portion 17, thereby minimizing the interference of external signals and improving the sensitivity of the capacitive stylus 100.

[0058] Specifically, Figure 1 As shown, the control board 3 is arranged in the main body 18, the first wire 13 is arranged outside the truncated cone 17 and the main body 18, and the second wire 14 is arranged outside the main body 18. In this way, the first antenna 11 can be effectively connected to the control board 3 through the first wire 13 arranged outside the truncated cone 17 and the main body 18, thereby improving the effectiveness of signal transmission.

[0059] In some optional embodiments, Figures 1 - 3As shown, the bracket 1 can be injection molded from a plastic containing metal particles. The first antenna 11, the second antenna 12, the first wire 13, and the second wire 14 are all formed layers after laser engraving on the bracket 1, and a metal coating can be further formed on the formed layer. It can be understood that the areas on the bracket 1 where the first antenna 11, the second antenna 12, the first wire 13, and the second wire 14 are preset are laser engraved to remove the plastic part of the bracket 1. After obtaining the relevant areas where the metal particles are exposed, an antenna or wire with a metal coating is deposited by chemical means or the like. In this way, the laser engraved antenna or wire with a metal layer can be integrated with the bracket 1 provided with the pen tip 2 into a single part, so that there can be more design space for the transmitting antenna and the receiving antenna, improving the accuracy of inclination correction, improving the performance of the capacitive pen 100, and the laser engraved antenna or wire can avoid interference from internal components, thereby further improving the accuracy of inclination correction and further improving the performance of the capacitive pen 100. The above method of forming an antenna or wire with a metal coating by laser engraving in cooperation with chemical means or the like on a plastic containing metal particles is a prior art and will not be elaborated here.

[0060] Optionally, as Figures 1 - 3 shown, the main body portion 18 is provided with a first welding portion 181 and a second welding portion 182. The first welding portion 181 and the second welding portion 182 respectively provide welding sites for the first wire 13 and the second wire 14 to communicate with the control board 3. Thus, both the first welding portion 181 and the second welding portion 182 are provided on the bracket 1, so that the first wire 13 welded to the first welding portion 181 and the second wire 14 welded to the second welding portion 182 can form an integral body with the bracket 1, thereby improving the stability of the wiring of the first wire 13 and the second wire 14, reducing the assembly steps at the same time, improving production efficiency, and reducing production costs.

[0061] Next, a manufacturing method of the capacitive pen 100 according to the second aspect embodiment of the present invention will be described. The manufacturing method of the capacitive pen 100 according to the embodiments of the present invention includes the following steps: providing a bracket 1 for carrying the pen core of the capacitive pen; providing a first antenna 11 and a second antenna 12 for being respectively formed on the surface of the bracket 1; providing a pen tip 2 disposed at one end of the bracket 1 and arranging the first antenna 11 and the second antenna 12 close to the pen tip 2; providing a control board 3 disposed inside the bracket 1 and electrically connecting the first antenna 11 and the second antenna 12 to the control board 3 respectively.

[0062] It can be understood that the first antenna 11 and the second antenna 12 are used to be formed on the surface of the bracket 1 respectively, so that one of the first antenna 11 and the second antenna 12 can be used as the transmitting antenna for transmitting the inclination correction signal of the capacitive pen 100, and the other of the first antenna 11 and the second antenna 12 can be used as the receiving antenna for receiving the inclination correction signal of the capacitive pen 100. At the same time, the first antenna 11, the second antenna 12 and the pen tip 2 are arranged on the bracket 1 to form an integral body, greatly increasing the area of the transmitting antenna and the receiving antenna, improving the accuracy of inclination detection and correction, and optimizing the performance of the capacitive pen 100.

[0063] Moreover, the first antenna 11, the second antenna 12 and the bracket 1 are integrated into one body, which can reduce the number of components, reduce the assembly man-hours, and both the material cost and the time cost can be reduced. At the same time, the simplification of the assembly steps is beneficial to reducing the defective risk during assembly, and further improving the reliability and consistency of the capacitive pen 100.

[0064] According to the manufacturing method of the capacitive pen of the embodiment of the present invention, by providing a first antenna and a second antenna, which are used to be formed on the surface of the bracket respectively, so that one of the first antenna 11 and the second antenna 12 can be used as the transmitting antenna for transmitting the inclination correction signal of the capacitive pen 100, and the other of the first antenna 11 and the second antenna 12 can be used as the receiving antenna for receiving the inclination correction signal of the capacitive pen 100. Furthermore, not only can the size of the transmitting antenna and the receiving antenna be greatly increased, the accuracy of inclination detection and correction be improved, but also the assembly difficulty can be reduced, and the reliability and consistency of the capacitive pen 100 can be further improved.

[0065] In some embodiments, a first wire 13 and a second wire 14 are provided. The first wire 13 is respectively connected to the first antenna 11 and the control board 3, and the second wire 14 is respectively connected to the second antenna 12 and the control board 3. In this way, the first antenna 11 and the second antenna 12 can be respectively connected to the control board 3 through the first wire 13 and the second wire 14 formed on the surface of the bracket 1, so as to achieve the purpose of signal transmission and signal reception. At the same time, in this way, the connecting wires can also be formed on the bracket 1 and integrated with the bracket 1, thereby further simplifying the assembly process of the capacitive pen 100, reducing the cost, and having a simple forming process.

[0066] In some embodiments, the bracket 1 is injection molded with a plastic containing metal particles. In this way, various forms of treatment can be performed on the bracket 1 to arrange the first antenna 11 and the second antenna 12. For example, laser etching, hot melting and other methods can be used to provide a forming surface for arranging the first antenna 11 and the second antenna 12.

[0067] Specifically, the first antenna 11, the second antenna 12, the first wire 13, and the second wire 14 are all formed by laser engraving on the bracket 1. After the formed first antenna 11, second antenna 12, first wire 13, and second wire 14 are plated, a metal coating is formed on their respective surfaces. It can be understood that the first antenna 11, the second antenna 12, the first wire 13, and the second wire 14 are all formed by laser engraving on the bracket, which can remove the plastic part of the bracket 1 to obtain an area where metal particles are exposed. Through chemical or other means, an antenna or wire covered with a metal coating can be deposited. In this way, the laser-engraved antenna or wire plated with a metal layer can be integrated with the bracket 1 provided with the pen tip 2 into a single part, so that the transmitting antenna and the receiving antenna can have more design space, improve the accuracy of inclination correction, improve the performance of the capacitive pen 100, and the laser-engraved antenna or wire can avoid interference from internal components, thereby further improving the accuracy of inclination correction and further improving the performance of the capacitive pen 100.

[0068] The following refers to Figures 1 - 3 Describe the structure of the capacitive pen 100 in a specific embodiment.

[0069] The capacitive pen 100 includes: a bracket 1, a first antenna 11, a second antenna 12, a pen tip 2, and a control board 3.

[0070] The first antenna 11 and the second antenna 12 are provided on the surface of the bracket 1.

[0071] The first antenna 11 is connected to the control board 3 through the first wire 13. The first wire 13 is formed on the surface of the bracket 1, and the first antenna 11 is formed in a ring shape.

[0072] The second antenna 12 is connected to the control board 3 through the second wire 14. The second wire 14 is formed on the surface of the bracket 1, and the first antenna 11 and the second antenna 12 are spaced apart in the length direction of the bracket 1. The size of the second antenna 12 in the length direction of the bracket 1 is greater than the size of the first antenna 11 in the length direction of the bracket 1. The second antenna 12 is formed in a ring shape.

[0073] Among them, a first insulating region 15 penetrating the second antenna 12 in the length direction of the bracket 1 is provided on the outer wall of the bracket 1. A second insulating region 16 is provided between the first antenna 11 and the second antenna 12, and the second insulating region 16 communicates with the first insulating region 15.

[0074] The pen tip 2 is provided at one end of the bracket 1, and the first antenna 11 and the second antenna 12 are arranged close to the pen tip 2.

[0075] The control board 3 is disposed within the bracket 1, the control board 3 is disposed within the main body portion 18, the first wire 13 is disposed outside the frustum portion 17 and the main body portion 18, and the second wire 14 is disposed outside the main body portion 18.

[0076] Other components of the capacitive pen 100 according to an embodiment of the present invention, such as the control board 3 and the battery, etc., and the operations are known to those of ordinary skill in the art and will not be described in detail here.

[0077] In the description of this specification, the description with reference to terms such as "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0078] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A capacitive pen, characterized in that, Comprising: A bracket, on the surface of which a first antenna and a second antenna are provided. One of the first antenna and the second antenna is a transmitting antenna for transmitting signals, and the other of the first antenna and the second antenna is a receiving antenna for receiving signals; wherein, the signals include the inclination information of the tip of the capacitive pen. A pen tip, which is arranged at one end of the bracket, and the first antenna and the second antenna are arranged close to the pen tip. A control board, which is arranged inside the bracket, and the first antenna and the second antenna are respectively electrically connected to the control board. The first antenna is connected to the control board through a first wire, and the first wire is formed on the surface of the bracket. The second antenna is connected to the control board through a second wire, and the second wire is formed on the surface of the bracket. The bracket is an injection molded part containing metal particles, and the first antenna, the second antenna, the first wire and the second wire are all formed layers after laser engraving on the bracket, and a metal coating is covered on the formed layer.

2. The capacitive pen according to claim 1, wherein The first antenna and the second antenna are respectively cured on the surface of the bracket.

3. The capacitive pen according to claim 1, wherein The first antenna and the second antenna are respectively cured on the outer surface of the bracket.

4. The capacitive pen according to claim 1, characterized in that, The first antenna is formed into a ring shape, the second antenna is formed into a ring shape, and the first antenna and the second antenna are arranged at intervals in the length direction of the bracket.

5. The capacitive pen according to claim 4, characterized in that, The first antenna is closer to the head of the pen tip than the second antenna, and a first insulating region penetrating the second antenna in the length direction of the bracket is further provided on the outer wall of the bracket, and at least a part of the first wire is arranged in the first insulating region.

6. The capacitive pen according to claim 5, characterized in that, A second insulating region is provided between the first antenna and the second antenna, and the second insulating region communicates with the first insulating region.

7. The capacitive pen according to claim 3, wherein, The bracket includes a frustum part and a main body part connected to the bottom of the frustum part. The first antenna and the second antenna are both arranged on the outer surface of the frustum part, and the pen tip extends from the top of the frustum part.

8. The capacitive pen according to claim 7, wherein, The control board is arranged inside the main body part, the first wire is arranged outside the frustum part and the main body part, and the second wire is arranged outside the main body part.

9. A manufacturing method of a capacitive pen for manufacturing the capacitive pen according to any one of claims 1-8, characterized in that, Including the following steps: Providing a bracket for carrying the pen core of the capacitive pen. Providing a first antenna and a second antenna for respectively forming on the surface of the bracket. Providing a pen tip, arranging it at one end of the bracket, and arranging the first antenna and the second antenna close to the pen tip. Providing a control board, arranging it inside the bracket, and electrically connecting the first antenna and the second antenna to the control board respectively. Providing a first wire and a second wire, the first wire respectively connecting the first antenna and the control board, and the second wire respectively connecting the second antenna and the control board. Injection molding the bracket with a plastic containing metal particles. Laser engraving the first antenna, the second antenna, the first wire and the second wire into shape on the bracket. The formed first antenna, second antenna, first wire, and second wire are plated to form a metal coating on their respective surfaces.

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