Active stylus, touch control system and interactive method

Abstract

The present invention provides an active touch pen, including a pen tip mechanism and a conductive member arranged around the pen tip mechanism, the pen tip mechanism includes a conductive pen core for sending signals and an isolating member sleeved outside the conductive pen core, the conductive pen core is made of soft conductive material, the conductive member is used to receive signals, and the conductive member is sleeved outside the isolating member to isolate the conductive pen core from the conductive member. Since the conductive pen core has no soft sleeve, it can directly contact the touch panel, so that the conductive pen core has a stronger signal transmission performance; in addition, the conductive pen core is made of soft conductive material, and the conductive pen core will not scratch the touch panel during the contact process with the foldable touch panel, so as to prevent the foldable touch panel from being scratched. The present invention also provides a touch system provided with the active touch pen and an interactive method of the touch system.

Description

Technical Field

[0001] The present invention relates to the field of input settings, and in particular to an active stylus, a touch control system provided with the active stylus, and an interaction method of the touch control system. Background Art

[0002] Existing active styluses include electromagnetic pens and capacitive pens. The electromagnetic pen uses electromagnetic induction to determine the position of the pen, which requires a matching electromagnetic board module, has a complex structure and high manufacturing cost; the capacitive pen uses touch control, does not require additional sensing layers, has a simple structure and low manufacturing cost. In order to improve the anti-interference ability of the active stylus, current capacitive pens all use a two-way communication protocol, that is, the screen transmits an uplink signal to the active stylus, and the active stylus replies to the screen's downlink signal after receiving the uplink signal, so that the two complete the handshake information, and the active stylus can be used normally. In order to complete the handshake information between the active stylus and the screen, it is necessary to ensure that the strength of the uplink signal and the active stylus have a sufficiently strong receiving ability at the same time.

[0003] When the existing active stylus is used with a foldable touch panel, the cover film covering the light-emitting surface of the foldable touch panel has a low rigidity. If the metal refill of the existing active stylus directly contacts the foldable touch panel, the metal refill is likely to scratch the foldable touch panel. Therefore, the metal refill of the existing active stylus is covered with a soft cover to prevent the metal refill from scratching the foldable touch panel. However, the soft cover attenuates the downlink signal of the metal refill, affects the handshake between the active stylus and the flexible screen, and may cause the pairing of the two to fail. Summary of the invention

[0004] An object of the present invention is to provide an active stylus capable of enhancing the signal transmission function, a touch control system provided with the active stylus, and an interaction method of the touch control system.

[0005] In order to solve the above technical problems, the present invention provides an active stylus, which includes a pen tip mechanism and a conductive part arranged around the pen tip mechanism, the pen tip mechanism includes a conductive pen core for sending signals, the conductive pen core is made of soft conductive material, the conductive part is used to receive signals, and the conductive pen core is isolated from the conductive part.

[0006] The present invention also provides a touch control system, comprising an electronic device having a touch panel and an active stylus, wherein the touch panel sends an uplink signal to the active stylus, a conductive member of the active stylus receives the uplink signal, and the active stylus obtains the uplink signal and controls the conductive pen core to send a downlink signal to the touch panel.

[0007] The present invention also provides an interactive method of a touch system, including an active stylus and an electronic device with a touch panel, the interactive method comprising: the touch panel sends an uplink signal to the active stylus; the conductive element of the active stylus receives the uplink signal; the active stylus obtains the uplink signal and controls the conductive pen core to send a downlink signal according to the uplink signal; the touch panel receives the downlink signal to obtain the spatial vector coordinates and / or direction angle of the active stylus.

[0008] The active stylus provided by the present invention includes a conductive pen core made of a soft conductive material, and the conductive pen core contacts the touch panel to perform a touch operation. Since the conductive pen core directly contacts the foldable touch panel, under the same pen tip driving voltage, the downlink signal of the conductive pen core is stronger to meet the handshake between the active stylus and the foldable touch panel; in addition, the conductive pen core is made of a soft conductive material, so the conductive pen core will not scratch the touch panel during the contact process with the foldable touch panel, so as to prevent scratches on the touch panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0010] Figure 1 is a schematic diagram of the three-dimensional structure of an active stylus provided by the first embodiment of the present invention;

[0011] Figure 2 yes Figure 1 A schematic cross-sectional view of the three-dimensional structure of the pen head portion of the active stylus;

[0012] Figure 3 yes Figure 2 A schematic diagram of a partial three-dimensional structure of an active stylus;

[0013] Figure 4 yes Figure 3 A schematic diagram of a three-dimensional structure of the active stylus from another perspective;

[0014] Figure 5 yes Figure 3 A further schematic diagram of the three-dimensional structure decomposition of the active stylus in FIG.

[0015] Figure 6 yes Figure 4 A further schematic diagram of the three-dimensional structure decomposition of the active stylus in FIG.

[0016] Figure 7 yes Figure 6 A schematic diagram of a three-dimensional structure decomposition of a pen tip mechanism of an active stylus;

[0017] Figure 8 yes Figure 7 The three-dimensional structural assembly diagram of the pen tip mechanism;

[0018] Fig. 9 yes Figure 8 A cross-sectional view of the pen tip mechanism along line IX-IX;

[0019] Fig.10 yes Figure 5 A three-dimensional cross-sectional view of a conductive member of an active stylus;

[0020] Fig.11 yes Figure 2 A cross-sectional view along line XI-XI;

[0021] Fig.12 yes Figure 1 Schematic diagram of the usage status of the active stylus in FIG.

[0022] Fig.13 yes Fig.12 A cross-sectional view along line XIII-XIII;

[0023] Fig.14 is a schematic cross-sectional view of a partial structure of an active stylus provided by a second embodiment of the present invention;

[0024] Fig.15 yes Fig.14 A schematic cross-sectional structural diagram of a conductive member of an active stylus;

[0025] Fig.16 is a schematic cross-sectional view of a partial structure of an active stylus provided by a third embodiment of the present invention;

[0026] Fig.17 yes Fig.16 A schematic diagram of a three-dimensional cross-sectional structure of a conductive member of an active stylus;

[0027] Fig.18 is a schematic diagram of the three-dimensional structure of a touch control system provided by one embodiment of the present invention;

[0028] Fig.19 It is a flow chart of an interactive method of a touch control system provided by one embodiment of the present invention.

[0029] Description of main reference numerals: 100, 100a, 100b, active stylus; 20, housing; 21, cone tube; 23, pen tube; 212, end surface; 214, 215, positioning groove; through hole; 30, main board; 32, processor; 40, pen tip mechanism; 42, conductive pen core; 421, pen head; 4213, second positioning surface; 4214, pen tip; 4215, connecting part; 423, positioning part; 425, neck; 4251, lower neck; 4253, upper neck; 4254, first positioning surface; 44, isolating member; 442, first positioning cylinder; 4421, inner peripheral surface; 4423, end surface; 445, second positioning cylinder; 4451, positioning groove; 4453, positioning strip; 50, 50a, 50b, conductive member; 51, first conductive tube; 53, second conductive tube; 54, connecting ring; 55, outer expansion tube; 551, tube body; 553, connecting part; 501, wire; 56, conductive outer tube; 562, connecting ring; 564, 564b, conductive ring; 60, positioning mechanism; 61, positioning shell; 612, receiving groove; 613, stop block; 615, positioning ring; 616, conductive pressing member; 63, connecting member; 631, connecting column; 633, abutting block; 635, limiting groove; 636, screw hole; 65, refill positioning member; 651, positioning tube; 653, connecting rod; 655, screw; 66, elastic reset member; 300, electronic device; 302, touch panel 302. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Please also read Figures 1 to 6 , Figure 1 is a schematic diagram of the three-dimensional structure of the active stylus pen 100 provided in the first embodiment of the present invention, Figure 2 yes Figure 1 A schematic diagram of a three-dimensional structure decomposition of the pen head portion of the active stylus pen 100; Figure 3 yes Figure 2 A schematic diagram of a partial three-dimensional structure explosion of the active stylus 100; Figure 4 yes Figure 3 A schematic diagram of a three-dimensional structure of the active stylus pen 100 from another perspective; Figure 5 yes Figure 3 A further schematic diagram of the three-dimensional structure decomposition of the active stylus pen 100; Figure 6 yes Figure 4 The active stylus 100 provided in the first embodiment of the present invention comprises a housing 20, a main board 30 disposed in the inner cavity of the housing 20, a pen tip mechanism 40, a conductive member 50 disposed around the pen tip mechanism 40, and a positioning mechanism 60; the pen tip mechanism 40 comprises a conductive pen core 42 for sending signals and an isolating member 44 sleeved outside the conductive pen core 42, wherein the conductive pen core 42 is made of a soft conductive material; the conductive member 50 is used for receiving signals, and the conductive member 50 is sleeved outside the isolating member 44 so that the conductive pen core 42 is isolated from the conductive member 50, that is, there is no electrical conduction between the conductive pen core 42 and the conductive member 50. The positioning mechanism 60 is used to install the pen tip mechanism 40 to the inner cavity of the shell 20, and the conductive pen core 42 is electrically connected to the main board 30 in the shell 20 through the positioning mechanism 60; the conductive member 50 is electrically connected to the main board 30 through a wire 501.

[0032] When the active stylus 100 is used in conjunction with an electronic device such as a touch panel, the conductive member 50 receives the uplink signal sent by the touch panel and transmits it to the mainboard 30 through the wire 501. The mainboard 30 generates a downlink signal according to the scanning frequency program code stored in the memory module; the top of the conductive pen core 42 contacts the touch panel, and the downlink signal generated by the mainboard 30 is transmitted to the touch panel through the conductive pen core 42, so that the active stylus 100 performs a touch operation on the touch panel, that is, completes the handshake information between the conductive pen core 42 of the active stylus 100 and the touch panel. In the present invention, the touch panel is the screen of a foldable mobile phone. The uplink signal refers to a signal transmitted to the active stylus 100 by an electronic device such as a touch panel, and the downlink signal refers to a signal transmitted to the touch panel by the conductive pen core 42 of the active stylus 100.

[0033] In other embodiments, the touch panel may also be, but is not limited to, a screen of an electronic device such as a foldable tablet computer, a foldable display screen, etc.

[0034] The active stylus 100 of the present invention includes a conductive refill 42 made of a soft conductive material, the conductive refill 42 is electrically connected to the main board 30, and the end of the conductive refill 42 contacts the foldable touch panel to perform a touch operation. Since the conductive refill 42 directly contacts the foldable touch panel, under the same pen tip driving voltage, the downlink signal of the conductive refill 42 is relatively strong, which can satisfy the handshake between the active stylus 100 and the foldable touch panel, so that the power consumption of the active stylus 100 is relatively low; in addition, the conductive refill 42 is made of a soft conductive material, so the conductive refill 42 will not scratch the touch panel during the contact process with the foldable touch panel, so as to prevent scratches on the touch panel. The soft conductive material used to make the conductive refill 42 can be, but is not limited to, conductive plastic, conductive rubber, conductive fiber fabric, etc.

[0035] The conductive pen core 42 in the present invention is made of conductive polymer, and the hardness of the conductive pen core 42 can be adjusted as needed. Specifically, the hardness of the conductive pen core 42 is adjusted according to the proportion of each component of the soft conductive material. For example, when the conductive pen core 42 is made of conductive plastic, the hardness is adjusted by the proportion of the resin in the conductive plastic and the fine powder of conductive substances such as gold, silver, copper, nickel, etc.; when the conductive pen core 42 is made of conductive plastic, the hardness is adjusted by the proportion of raw rubber such as silicone rubber, chloroprene rubber, nitrile rubber, etc. and the fine powder of conductive substances such as gold, silver, copper, nickel, etc. The hardness of the conductive pen core 42 is adjusted according to the different types of touch panels it corresponds to; specifically, if the conductive pen core 42 is used with a hard screen touch panel, the hardness of the conductive pen core 42 can be higher; if the conductive pen core 42 is used with a foldable touch panel, the hardness of the conductive pen core 42 is lower to prevent the conductive pen core 42 from scratching the foldable touch panel.

[0036] Due to the requirement of screen folding, each layer in the foldable touch panel adopts film materials with low storage modulus; specifically, the foldable touch panel generally includes a stacked support layer, a pressure-sensitive adhesive layer, a base film layer, a display module layer, a touch layer, a polarizer layer, an optically transparent adhesive layer and a covering film layer; the covering film layer generally adopts a 50um-90um transparent polyimide film or ultra-thin glass, and the elastic elongation of the optically transparent adhesive layer is softer than that of a conventional hard screen. Therefore, the rigidity of the covering film layer is lower, and when the existing active stylus writes on the covering film layer, the resistance is relatively large, which makes the soft cover on the outside of the metal pen core easy to wear, so that the metal pen core is easily exposed and scratches are generated on the covering film layer. The conductive pen core 42 of the present invention is made of a conductive material with adjustable hardness and hardness. The conductive pen core 42 can be adjusted to a suitable hardness, so that the conductive pen core 42 is not easy to wear and will not produce scratches on the covering film layer. The conductive pen core 42 directly contacts the covering film layer, so that the downlink signal of the conductive pen core 42 is strong.

[0037] The isolation member 44 is made of insulating material. Furthermore, the insulating material can be insulating hard glue. Since the hardness of the insulating hard glue is much lower than the hardness of the metal core of the existing active stylus, even if the isolation member 44 contacts the covering film layer, it will not easily scratch the covering film layer, thereby avoiding scratches on the touch panel.

[0038] In this embodiment, the spacer 44 is made of insulating polymer, and the hardness of the spacer 44 can be adjusted as needed, that is, adjusted according to the spacer 44 corresponding to different types of screens. Preferably, the insulating material of the spacer 44 can be but not limited to insulating rubber, insulating resin, insulating silicone, insulating plastic, etc.

[0039] In this embodiment, after the conductive pen core 42 is injection molded, the isolating piece 44 is injection molded again on its outer peripheral surface to form an integral structure of the conductive pen core 42 and the isolating piece 44. Preferably, the conductive pen core 42 and the isolating piece 44 are integrated by two-color injection molding, that is, the conductive pen core 42 and the isolating piece 44 are respectively injection molded into the same mold using soft conductive material and insulating material, so that the conductive pen core 42 and the isolating piece 44 are combined into one after the injection molding, and the conductive pen core 42 is made of flexible conductive material, and the isolating piece 44 is made of insulating material. In the process of the two-color injection molding, the hardness of the conductive pen core 42 and the isolating piece 44 can be adjusted as needed, and the shapes of the conductive pen core 42 and the isolating piece 44 can also be designed as needed.

[0040] In other embodiments, the conductive pen core 42 is made by injection molding, and the conductive pen core 42 and the isolation member 44 can also be connected together by snapping, gluing or hot pressing.

[0041] Please also read Figure 7-Figure 9 , Figure 7 yes Figure 6 A schematic diagram of a three-dimensional structure explosion of the pen tip mechanism 40 of the active stylus 100; Figure 8 yes Figure 7 A three-dimensional structural assembly diagram of the pen tip mechanism 40; Fig. 9 yes Figure 8 The pen tip mechanism 40 is a cross-sectional view along the IX-IX line in FIG. The conductive pen core 42 includes a pen tip 421 and a positioning portion 423 located at opposite ends thereof. The pen tip 421 extends out of one end of the isolating member 44, and the positioning portion 423 extends out of the other end opposite to the isolating member 44. The pen tip 421 is used to contact the touch panel, and the positioning portion 423 is used to be electrically connected to the main board 30 of the active stylus 100. The axial length of the pen tip 421 can be adjusted. Specifically, the extension length of the pen tip 421 along the axial direction of the conductive pen core 42 relative to the isolating member 44 can be adjusted. In this embodiment, the pen tip 421 is roughly a cone, and the positioning portion 423 is a cylinder. The cone is coaxial with the cylinder, and the top of the cone is away from the positioning portion 423. The top of the pen tip 421 is a curved surface or a hemispherical surface.

[0042] The conductive pen core 42 further includes a neck 425 connected between the positioning portion 423 and the pen tip 421, and the isolating member 44 is sleeved outside the neck 425, so that the conductive pen core 42 and the isolating member 44 are firmly connected as one. In this embodiment, the neck 425 includes a lower neck 4251 and an upper neck 4253 connected to each other, the lower neck 4251 is close to the pen tip 421, and the upper neck 4253 is close to the positioning portion 423; that is, the lower neck 4251 is connected to the pen tip 421, the upper neck 4253 is connected between the lower neck 4251 and the positioning portion 423, the lower neck 4251 and the upper neck 4253 are connected along the axial direction of the pen tip 421, and the isolating member 44 is sleeved outside the lower neck 4251 and the upper neck 4253. In this embodiment, the lower neck 4251 and the upper neck 4253 are both truncated cones, the taper of the upper neck 4253 is different from that of the lower neck 4251, preferably, the taper of the upper neck 4253 is smaller than that of the lower neck 4251; the radial dimension of the upper neck 4253 gradually increases in the direction from the positioning portion 423 to the pen tip 421, and the radial dimension of the lower neck 4251 gradually increases in the direction from the positioning portion 423 to the pen tip 421, and the upper neck 4253 overlaps with the lower neck 4251 at the connection.

[0043] Preferably, the end of the neck 425 close to the pen tip 421 is provided with a first positioning surface 4254 along its circumference, and the first positioning surface 4254 is a truncated cone surface, and the inner circumference of the isolating member 44 is fitted to the first positioning surface 4254. In this embodiment, the outer circumference of the lower neck 4251 is the first positioning surface 4254, and since the radial dimension of the lower neck 4251 gradually increases in the direction from the positioning portion 423 to the pen tip 421, the first positioning surface 4254 increases the outer circumference area compared to the cylindrical surface, thereby increasing the fitting area between the first positioning surface 4254 and the inner circumference of the isolating member 44, and improving the connection strength between the isolating member 44 and the conductive pen core 42.

[0044] like Figure 7 and Fig. 9As shown, the pen tip 421 includes a nib 4214 located at the top thereof and a connecting portion 4215 connected between the neck 425 and the nib 4214; the nib 4214 and the connecting portion 4215 are an integrated structure. In this embodiment, the nib 4214 is a hemispherical body, and the connecting portion 4215 is a frustum, that is, the outer peripheral surface of the nib 4214 is a hemispherical surface, and the outer peripheral surface of the connecting portion 4215 is a frustum, and the radial dimension of the connecting portion 4215 is greater than the radial dimension of the lower neck 4251; preferably, the taper of the connecting portion 4215 is greater than the taper of the lower neck 4251. The end of the connecting portion 4215 away from the nib 4214 is provided with a second positioning surface 4213 connected to the lower neck 4251, that is, the second positioning surface 4213 is connected between the outer peripheral surface of the connecting portion 4215 and the outer peripheral surface of the lower neck 4251. Preferably, the second positioning surface 4213 is a truncated table surface, and the end surface of the isolating member 44 is fitted to the second positioning surface 4213, further increasing the fitting area between the isolating member 44 and the conductive refill 42, thereby making the connection between the isolating member 44 and the isolating member 44 more firmly. In this embodiment, the extension direction of the second positioning surface 4213 is inclined to the axial direction of the pen head 421, thereby increasing the fitting area between the conductive refill 42 and the isolating member 44, and further improving the connection strength between the isolating member 44 and the conductive refill 42.

[0045] In other embodiments, the outer circumference of the lower neck 4251 and / or the outer circumference of the upper neck 4253 is provided with a plurality of positioning grooves, and the inner circumference of the isolating member 44 is provided with positioning strips corresponding to these positioning grooves; or the outer circumference of the lower neck 4251 and / or the outer circumference of the upper neck 4253 is provided with a plurality of positioning strips, and the inner circumference of the isolating member 44 is provided with positioning grooves corresponding to these positioning strips; thereby increasing the fitting area between the conductive pen core 42 and the isolating member 44, making the connection between the conductive pen core 42 and the isolating member 44 more secure.

[0046] In other embodiments, the outer circumferential surface of the lower neck 4251 is provided with at least one step surface and / or the outer circumferential surface of the upper neck 4253 is provided with at least one step surface, and the inner circumferential surface of the isolating member 44 is provided with a fitting surface corresponding to the step surface; thereby increasing the fitting area between the conductive pen core 42 and the isolating member 44, making the connection between the conductive pen core 42 and the isolating member 44 more secure.

[0047] Please also read Figures 7 to 9The isolating member 44 includes a first positioning tube 442 and a second positioning tube 445 connected to each other along the extension direction of the neck 425. The inner cavity of the first positioning tube 442 is connected to the inner cavity of the second positioning tube 445. The neck 425 is inserted into the inner cavities of the first positioning tube 442 and the second positioning tube 445. The frustum of the lower neck 4251 fits the inner circumference of the first positioning tube 442, and the frustum of the upper neck 4253 fits the inner circumference of the second positioning tube 445. The end surface of the first positioning tube 442 away from the second positioning tube 445 abuts against the pen tip 421, and the end surface of the second positioning tube 445 away from the first positioning tube 442 abuts against the positioning portion 423. Specifically, the end surface of the first positioning cylinder 442 away from the second positioning cylinder 445 is in contact with the second positioning surface 4213 of the conductive pen core 42, and the end surface of the second positioning cylinder 445 away from the first positioning cylinder 442 is in contact with the end surface of the positioning portion 423 facing the neck 425. The radial dimension of the positioning portion 423 is greater than the radial dimension of the upper neck 4253, and the end surface of the second cylinder 445 away from the first cylinder 442 is in contact with the end surface of the positioning portion 423 facing the pen tip 421, so that the connection between the isolation member 44 and the conductive pen core 42 is more secure.

[0048] The outer surface of the pen tip 421 includes an arc surface at the top and a frustum surface smoothly connected to the arc surface. The outer peripheral surface of the first positioning tube 442 is a frustum surface. The taper of the frustum surface of the pen tip 421 is the same as the taper of the frustum surface of the first positioning tube 442. After the first positioning tube 442 is sleeved on the neck 425, the frustum surface of the pen tip 421 is smoothly connected to the frustum surface of the first positioning tube 442, so that the first positioning tube 442 and the pen tip 421 form a cone structure. Since the top of the pen tip 421 is an arc surface, and the arc surface is smoothly connected to the frustum surface of the pen tip 421, the outer surface of the pen tip 421 is smooth, that is, the outer surface of the pen tip 421 has no edges and corners, which can prevent the pen tip 421 from scratching the touch surface.

[0049] In this embodiment, the outer surface of the pen tip 421 includes a hemispherical surface at the top and a frustum surface connected to the hemispherical surface, the outer peripheral surface of the first positioning cylinder 442 is a frustum surface, the taper of the frustum surface of the pen tip 421 is the same as the taper of the frustum surface of the first positioning cylinder 442, and the frustum surface of the pen tip 421 is smoothly connected to the frustum surface of the first positioning cylinder 442. Since the top of the pen tip 421 is a hemispherical surface, and the hemispherical surface is smoothly connected to the frustum surface of the pen tip 421, the outer peripheral surface of the pen tip 421 is smooth, that is, the outer surface of the pen tip 421 has no edges and corners, which can prevent the pen tip 421 from scratching the touch surface.

[0050] like Fig. 9 As shown, the radial dimension of the diameter portion 425 near the pen tip 421 is greater than the radial dimension of the diameter portion 425 near the positioning portion 423, that is, the diameter portion 425 is non-cylindrical, so that the area of ​​the outer circumferential surface of the diameter portion 425 is increased compared with the outer circumferential surface of the cylinder, thereby increasing the contact area between the diameter portion 425 and the isolation member 44, and enhancing the bonding force between the diameter portion 425 and the isolation member 44. Preferably, the radial dimension of the neck 425 gradually increases in the direction from the positioning portion 423 to the pen tip, the inner circumference 4421 of the first positioning cylinder 442 is fitted to the first positioning surface 4254, the end surface 4423 of the first positioning cylinder 442 facing away from the second positioning cylinder 445 is fitted to the second positioning surface 4213, the inner circumference of the second positioning cylinder 445 is fitted to the outer circumference of the upper neck 4253, and the end surface of the second positioning cylinder 445 away from the first positioning cylinder 442 is fitted to the end surface of the positioning portion 423 facing the upper neck 4253, so that the isolation member 44 is firmly connected to the conductive pen core 42.

[0051] like Figure 8 and Fig. 9 As shown, the outer diameter of the second positioning tube 445 is equal to or smaller than the outer diameter of the positioning portion 423, and a positioning groove 4451 is circumferentially provided at the end of the second positioning tube 445 close to the positioning portion 423. Preferably, the second positioning tube 445 is provided with a plurality of positioning strips 4453 on the outer circumferential surface of the positioning groove 4451, and the plurality of positioning strips 4453 are arranged in a circle along the circumference of the second positioning tube 445, and each positioning strip 4453 extends along the axial direction of the second positioning tube 445, and an inclined guide surface is provided at one end of each positioning strip 4453 away from the first positioning tube 442. These positioning strips 4453 are used to connect the positioning mechanism 60.

[0052] In order to reduce the bending stress of the foldable touch panel when folded, the thickness of the foldable touch panel should be minimized. Therefore, the foldable touch panel adopts the method of embedding the touch layer between the display module layer and the polarizer layer, that is, the touch layer is located above the display module layer, so that the thickness of the display module layer is reduced, thereby reducing the overall thickness of the foldable touch panel. However, the touch layer is close to the display module layer, which makes the touch of the touch layer susceptible to interference, resulting in a rapid attenuation of the amplitude of the uplink signal of the foldable touch panel, which may affect the pairing of the active stylus 100 with the foldable touch panel. Although increasing the driving electrode of the foldable touch panel can increase the strength of the uplink signal, continuously increasing the voltage of the driving electrode will not only cause the foldable touch panel to have poor display such as water ripple problems, but also sharply increase the power consumption of the driving electrode. Therefore, in order to complete the pairing of the active stylus 100 and the foldable touch panel so that the active stylus 100 can write normally on the foldable touch panel, it is necessary to improve the receiving ability of the conductive member 50 of the active stylus 100. In the present invention, the receiving ability of the conductive member 50 is enhanced by increasing the positive projection area of ​​the conductive member 50 on the foldable touch panel; specifically, when the active stylus 100 is perpendicular to the foldable touch panel, the projection area of ​​the conductive member 50 along the direction perpendicular to the foldable touch panel is increased to enhance the receiving ability of the conductive member 50 in the use scenario of the active stylus 100 being perpendicular or nearly perpendicular to the foldable touch panel.

[0053] In this embodiment, please refer to Figure 5-Figure 6 and Fig.10 , Fig.10 yes Figure 53D cross-sectional view of the conductive member 50 of the active stylus 100 in FIG. The conductive member 50 includes a first conductive tube 51, a second conductive tube 53, and a connecting ring 54 connected between the first conductive tube 51 and the second conductive tube 53. The first conductive tube 51 and the second conductive tube 53 are arranged along the axial direction of the conductive pen core 42. The inner cavity of the first conductive tube 51, the inner cavity of the connecting ring 54, and the inner cavity of the second conductive tube 53 are interconnected. The outer diameter of the second conductive tube 53 is greater than the outer diameter of the first conductive tube 51. The first conductive tube 51 is used to be sleeved on the outside of the second positioning tube 445 of the isolation member 44. At this time, the first conductive tube 51, the second conductive tube 53 and the conductive pen core 42 are coaxially arranged. The first conductive tube 51, the second conductive tube 53 and the connecting ring 54 can all be made of conductive materials such as copper, copper alloy, aluminum or aluminum alloy; the first conductive tube 51 and the second conductive tube 53 can be connected by the connecting ring 54; the first conductive tube 51, the second conductive tube 53 and the connecting ring 54 can also be made by integral molding; therefore, the conductive member 50 forms a step at the connecting ring 54, and the step increases the projection area of ​​the conductive member 50 along the vertical direction on the foldable touch panel, thereby enhancing the receiving ability of the conductive member 50 in the use scenario of the active stylus 100 being vertical or nearly vertical to the foldable touch panel. Specifically, under the same test conditions, the receiving ability of the conductive member 50 with the step between the first conductive tube 51 and the second conductive tube 53 is increased by about 50% compared with the receiving ability of the conductive member without the step.

[0054] Preferably, the conductive member 50 further comprises an outer expansion tube 55, the outer expansion tube 55 is connected to the end of the second conductive tube 53 away from the first conductive tube 51, the first conductive tube 51, the second conductive tube 53 and the outer expansion tube 55 are coaxial, and the outer diameter of the outer expansion tube 55 is greater than the outer diameter of the second conductive tube 53; therefore, the projection area of ​​the conductive member 50 along the vertical direction on the foldable touch panel is further increased, and the receiving capacity of the conductive member 50 is further enhanced. Specifically, the outer expansion tube 55 comprises a cylinder body 551 located at the end of the second conductive tube 53 away from the first conductive tube 51 and a connecting portion 553 connected between the cylinder body 551 and the second conductive tube 53, and the outer diameter of the connecting portion 553 gradually increases from the second conductive tube 53 to the outer expansion tube 55.

[0055] Please also read Figure 1-Figure 6The housing 20 includes a cone tube 21 and a pen tube 23 connected to the end of the cone tube 21. The inner cavity of the cone tube 21 is connected to the inner cavity of the pen tube 23. The conductive member 50 is accommodated in the inner cavity of the cone tube 21. The outer diameter and inner diameter of the cone tube 21 gradually decrease from the end close to the pen tube 23 to the end away from the pen tube 23. A through hole 214 is provided on the end surface 212 of the cone tube 21 away from the pen tube 23. The through hole 214 extends along the axial direction of the pen tube 23 and is connected to the inner cavity of the cone tube 21.

[0056] The positioning mechanism 60 includes a positioning shell 61, a connecting member 63 connected to the positioning shell 61, a refill positioning member 65 connected to the connecting member 63, and an elastic reset member 66. The connecting member 63 and the refill positioning member 65 are both made of conductive materials. The elastic reset member 66 is used for the movement and reset of the pen tip mechanism 40. The positioning shell 61 is snapped into the inner cavity of the outer shell 20. The middle part of the positioning shell 61 is provided with a receiving groove 612 along the axial direction. The positioning shell 61 is provided with a pair of stop blocks 613 on the inner side surface of the receiving groove 612. The positioning shell 61 is provided with a positioning ring 615 at one end close to the pen tip mechanism 40. The inner cavity of the positioning ring 615 is connected to the receiving groove 612. The positioning shell 61 is provided with a conductive pressing member 616 (such as Fig.11 As shown in FIG. 1 ), the conductive pressing member 616 is used to be electrically connected to the mainboard 30. In this embodiment, the elastic reset member 66 is a spring. In other embodiments, the elastic reset member 66 can be but is not limited to elastic rubber, plastic, etc.

[0057] The connecting member 63 includes a connecting column 631 and a contact block 633 protruding from one end surface of the connecting column 631. The connecting column 631 is slidably received in the receiving groove 612 of the positioning shell 61 along its axial direction, and the contact block 633 is used to abut the conductive pressing member 616. A pair of limiting grooves 635 are provided on the outer peripheral surface of the connecting column 631, and each limiting groove 635 extends along the axial direction of the connecting column 631. A screw hole 636 is provided on the end surface of the connecting column 631 away from the contact block 633 along the axial direction.

[0058] The refill positioning member 65 includes a positioning cylinder 651 and a connecting rod 653 connected to the end of the positioning cylinder 651 along its axial direction. The positioning cylinder 651 is used to sleeve the positioning portion 423 of the pen tip mechanism 40. The connecting rod 653 is provided with a screw 655 at one end away from the positioning cylinder 651. The screw 655 is threadedly connected to the screw hole 636 of the abutment block 633.

[0059] Please also read Figure 1-Figure 6 and Fig.11When assembling the active stylus 100, the connecting member 63 is accommodated in the receiving groove 612 of the positioning shell 61, so that the pair of stop blocks 613 are respectively accommodated in the pair of limiting grooves 635 of the connecting member 63, and the abutment block 633 faces the conductive pressing member 616 of the positioning shell 61, and the connecting member 63 can slide along the receiving groove 612 and stop at the stop block 613; the elastic reset member 66 is accommodated in the receiving groove 612, so that the inner cavity of the elastic reset member 66 faces the screw hole 636 of the connecting member 63; the screw 655 of the pen core positioning member 65 passes through the positioning ring 615 and the elastic reset member 66 and is screwed to the screw hole 636; The assembled positioning mechanism 60 is installed in the inner cavity of the pen tube 23; the conductive member 50 is accommodated in the conical tube 21, and the first conductive tube 51 is inserted into the through hole 214 of the conical tube 21; the conical tube 21 is connected to the pen tube 23, the positioning ring 615 is inserted into the inner cavity of the second conductive tube 53 and abuts against the connecting ring 54, so that the conductive member 50 is positioned in the conical tube 21; the positioning portion 423 is inserted into the inner cavity of the positioning tube 651 after passing through the first conductive tube 51, so that the positioning tube 651 is inserted into the positioning groove 4451 along the guiding surface of the positioning strip 4453, and the positioning strip 4453 is clamped on the inner circumference of the positioning tube 651. At this time, the pen tip mechanism 40 is connected to the pen core positioning member 65, and the elastic reset member 66 elastically pushes the connecting member 63 to contact the conductive pressing member 616, so that the conductive pen core 42 is electrically connected to the main board 30, and the pen tip mechanism 40 slides axially with the positioning mechanism 60; the first conductive tube 51 is sleeved on the outside of the second positioning tube 445, so that the conductive member 50 is isolated from the pen tip mechanism 40, and the conductive member 50 is electrically connected to the main board 30 through the wire 501.

[0060] Please also read Fig.12 and Fig.13 , Fig.12 yes Figure 1 Schematic diagram of the active stylus 100 in use state; Fig.13 yes Fig.12When the active stylus 100 is used on the touch panel 302, the active stylus 100 and the touch panel 302 are turned on, the active stylus 100 is held so that the pen tip 421 contacts the light-emitting surface of the touch panel 302, the touch panel 302 transmits an uplink signal, the conductive element 50 receives the uplink signal and transmits it to the main board 30 via the wire 501; the main board 30 generates a downlink signal and transmits it to the touch panel 302 via the positioning mechanism 60 and the conductive pen core 42, so that the active stylus 100 performs a touch operation on the touch panel 302, that is, the handshake information between the conductive pen core 42 of the active stylus 100 and the touch panel 302 is completed. Since the conductive pen core 42 directly touches the touch panel 302, under the same pen tip driving voltage, the downlink signal of the conductive pen core 42 is strong; since the conductive member 50 is provided with a connecting ring 54 and an outer expansion tube 55, when the conductive pen core 42 of the active stylus 100 is perpendicular to the touch panel 302, the area of ​​the projection area 301 of the conductive member 50 along the vertical direction on the touch panel 302 is large, which enhances the receiving ability of the conductive member 50. The downlink signal includes position information, pressure information, etc. In addition, the first conductive tube 51 is inserted into the through hole 214 of the cone tube 21. Therefore, when the active stylus 100 is held by hand so that the pen tip 421 contacts the light-emitting surface of the touch panel 302, the distance between the first conductive tube 51 and the touch panel 302 is small, that is, the distance between the conductive member 50 and the touch panel 302 is small, which further enhances the receiving ability of the conductive member 50. In this embodiment, the touch panel 302 is a foldable touch panel.

[0061] Preferably, the active stylus 100 and the touch panel 302 realize the receiving function of the conductive element 50 and the shielding function of GND by time-division multiplexing. Specifically, when the touch panel 302 sends an uplink signal to the active stylus 100, the conductive element 50 is used to receive the uplink signal; when the conductive pen core 42 sends a downlink signal to the touch panel 302, the conductive element 50 is used to prevent the signal sent by the conductive pen core 42 from diverging.

[0062] Please also read Fig.14 and Fig.15 , Fig.14 is a schematic cross-sectional view of a partial structure of an active stylus pen 100a provided in a second embodiment of the present invention; Fig.15 yes Fig.14Schematic diagram of the cross-sectional structure of the conductive member 50a of the active stylus 100a in the second embodiment of the present invention. The structure of the active stylus 100a in the second embodiment of the present invention is similar to that of the active stylus 100 in the first embodiment, except that: the structure of the conductive member 50a in the second embodiment is slightly different from that of the conductive member 50 in the first embodiment: the conductive member 50a is connected to the end of the housing 20 close to the pen tip mechanism 40, and the conductive member 50a is partially exposed from the housing 20; compared with the conductive member 50 in the first embodiment, the conductive member 50a in the second embodiment is not blocked by the housing 20, so that the conductive member 50a has a stronger ability to receive the uplink signal of the touch panel 302.

[0063] Specifically, the conductive member 50a is provided with a conductive outer cylinder 56 on the basis of the conductive member 50 in the first embodiment, and the conductive outer cylinder 56 is arranged outside the first conductive cylinder 51. When the conductive member 50a is installed to the housing 20, the conductive outer cylinder 56 is exposed from the housing 20. Preferably, the conductive outer cylinder 56 is embedded in the outer peripheral surface of the housing 20 so that the conductive outer cylinder 56 is exposed from the housing 20.

[0064] In this embodiment, the conductive outer cylinder 56 is coaxial with the first conductive cylinder 51, and the conductive outer cylinder 56 includes a connecting ring 562 connected to the first conductive cylinder 51 and a conductive ring 564 connected to the connecting ring 562. The conductive ring 564 is connected to the first conductive cylinder 51 through the connecting ring 562, and the conductive outer cylinder 56 is made of conductive material. Preferably, the connecting ring 562 is located at an end of the outer circumference of the first conductive cylinder 51 away from the second conductive cylinder 53, and the conductive ring 564 is located at an end of the connecting ring 562 close to the second conductive cylinder 53. The first conductive cylinder 51, the conductive outer cylinder 56, the second conductive cylinder 53, the outer expansion cylinder 55 and the conductive outer cylinder 56 are coaxially arranged. The outer circumference of the connecting ring 562 is a frustum, and the outer circumference of the conductive ring 564 is a frustum. The taper of the frustum of the connecting ring 562 is the same as the taper of the frustum of the conductive ring 564, and the outer circumference of the connecting ring 562 is smoothly connected to the outer circumference of the conductive ring 564. When the conductive member 50a is mounted on the housing 20, the outer circumference of the conductive ring 564 is connected to the outer circumference of the housing 20, that is, the outer circumferences of the connecting ring 562 and the conductive ring 564 are exposed to the housing 20. Therefore, the outer diameter of the conductive outer cylinder 56 exceeds the limit of the inner cavity of the housing 20, that is, the outer diameter of the conductive outer cylinder 56 can be set to be larger than the outer diameter of the housing 20. When the active stylus 100a is perpendicular to the touch panel 302, the area of ​​the projection area 301a of the conductive outer tube 56 perpendicular to the touch panel 302 is larger than the area of ​​the projection area 301 of the conductive member 50 in the first embodiment on the touch panel 302, further enhancing the receiving ability of the conductive member 50a in the use scenario of the active stylus 100a being perpendicular or nearly perpendicular to the touch panel 302. In addition, the connecting ring 562 is located at the top of the cone 21, that is, the conductive member 50a is close to the pen head 421, so when the active stylus 100a is held by hand so that the pen head 421 contacts the light emitting surface of the touch panel 302, the distance between the conductive member 50a and the touch panel 302 is small, further improving the receiving ability of the conductive member 50.

[0065] Furthermore, the outer diameter of the conductive outer cylinder 56 is greater than the outer diameter of the second conductive cylinder.

[0066] In this embodiment, a positioning groove 215 is provided at the end of the housing 20 close to the pen tip mechanism 40, and the positioning groove 215 forms a circle along the circumference of the housing 20, and the conductive outer cylinder 56 is received in the positioning groove 215, that is, the conductive outer cylinder 56 is sleeved on the end of the housing 20. Preferably, the conductive outer cylinder 56 is a truncated cone cylinder, and when the conductive outer cylinder 56 is installed to the end of the housing 20, the outer circumferential surface of the conductive outer cylinder 56 is coplanar with the outer circumferential surface of the housing 20.

[0067] In other embodiments, the conductive member 50a and the housing 20 may also be integrally formed by injection molding.

[0068] In other embodiments, the outer expansion tube 55 of the conductive member 50 a may be omitted, and the conductive wire 501 is electrically connected to the second conductive tube 53 .

[0069] In other embodiments, the outer expansion tube 55 and the second conductive tube 53 of the conductive member 50 a may be omitted, and the conductive wire 501 is electrically connected to the conductive outer tube 56 .

[0070] Please also read Fig.16 and Fig.17 , Fig.16 is a schematic cross-sectional view of a partial structure of an active stylus pen 100b provided in a third embodiment of the present invention; Fig.17 yes Fig.16 Schematic diagram of the three-dimensional cross-sectional structure of the conductive member 50b of the active stylus 100b in the third embodiment of the present invention. The structure of the active stylus 100b in the third embodiment of the present invention is similar to that of the active stylus 100 in the first embodiment, except that: the structure of the conductive member 50b in the third embodiment is slightly different from that of the conductive member 50 in the first embodiment, and the conductive member 50b includes a conductive ring 564b connected to the first conductive tube 51. Specifically, the conductive ring 564b is convexly arranged at the end of the first conductive tube 51 close to the pen tip mechanism 40. Preferably, the conductive ring 564b protrudes outwardly along the radial direction of the first conductive tube 51, and the conductive ring 564b is exposed outside the housing 20; compared with the conductive member 50 in the first embodiment, the conductive member 50b in the second embodiment is not blocked by the housing 20, so that the conductive member 50b has a stronger ability to receive the uplink signal of the touch panel 302.

[0071] Specifically, the conductive member 50b is added with a conductive ring 564b on the basis of the conductive member 50 in the first embodiment. The conductive member 50b is arranged outside the first conductive tube 51. When the conductive member 50b is installed to the housing 20, the end face of the conical tube 21 presses against the end face of the conductive ring 564b facing away from the pen tip 421, so that the conductive ring 564b is exposed outside the housing 20.

[0072] In this embodiment, the conductive ring 564b is coaxial with the first conductive tube 51, and the conductive ring 564b is made of conductive material. Preferably, the conductive ring 564b is located at the end of the outer circumference of the first conductive tube 51 away from the second conductive tube 53. The outer diameter of the conductive ring 564b is greater than the outer diameter of the outer expansion tube 55; when the active stylus 100b is perpendicular to the touch panel 302, the area of ​​the projection area 301b of the conductive ring 564b perpendicular to the touch panel 302 is larger than the area of ​​the projection area 301 of the conductive member 50 in the first embodiment on the touch panel 302, so as to further enhance the receiving ability of the conductive member 50b in the use scenario of the active stylus 100b being perpendicular or nearly perpendicular to the touch panel 302. In addition, the conductive ring 564b is located at the top of the housing 20, that is, the conductive member 50b is closer to the pen tip 421. Therefore, when the active stylus 100b is held in the hand so that the pen tip 421 contacts the light-emitting surface of the touch panel 302, the distance between the conductive member 50b and the touch panel 302 is shorter, further improving the receiving ability of the conductive member 50.

[0073] The outer diameter of the conductive ring 564b exceeds the limit of the inner cavity of the housing 20, that is, the outer diameter of the conductive ring 564b can be set to be larger than the outer diameter of the cone 21. Preferably, the conductive ring 564b is a truncated cone cylinder, and when the conductive member 50b is mounted to the end of the housing 20, the outer circumferential surface of the conductive ring 564b is coplanar with the outer circumferential surface of the housing 20.

[0074] In other embodiments, the outer expansion tube 55 of the conductive member 50 b and / or the second conductive tube 53 may be omitted, and the conductive wire 501 is electrically connected to the first conductive tube 51 .

[0075] like Fig.18As shown, the present invention also provides a touch control system, including an electronic device 300 and an active stylus described in any of the above embodiments, wherein the electronic device 300 includes a touch panel 302, wherein the electronic device 300 controls the touch panel 302 to send an uplink signal to the active stylus, and the conductive member of the active stylus receives the uplink signal, and the mainboard 30 of the active stylus obtains the uplink signal and controls the conductive refill 42 of the active stylus to send a downlink signal to the touch panel 302, and the touch panel 302 receives the downlink signal to obtain the spatial vector coordinates and / or direction angle of the active stylus. Specifically, the mainboard 30 includes a processor 32, and the processor 32 includes a processing unit and a transmitting circuit, and the processing unit outputs a frequency and controls the conductive refill 42 to send a downlink signal through the transmitting circuit, so that the touch panel 302 obtains the spatial vector coordinates and / or direction angle of the active stylus according to the received downlink signal. The frequency may be a frequency generated according to the scanning frequency of the touch panel 302. The touch panel 302 includes a controller and touch electrodes. The controller includes a receiving circuit, a scanning circuit and a control unit. The receiving circuit is connected to the touch electrodes and receives a downlink signal from the conductive pen core 42 through the touch electrodes. The control unit obtains the spatial vector coordinates and / or direction angle of the active stylus according to the received downlink signal.

[0076] The scanning circuit of the touch panel 302 is connected to the touch electrode to provide a touch scanning signal to the touch electrode. When the conductive pen core 42 is close to the touch panel 302, the conductive pen core 42 on the touch panel 302 can sense the touch scanning signal. The processor 32 of the active stylus defines the downlink signal to be sent by the conductive pen core 42 according to the touch scanning signal. At the same time, the processing unit of the processor 32 also obtains the frequency of the signal according to the touch scanning signal, and generates the frequency of the conductive pen core 42 according to the frequency, and the frequency sends the downlink signal through the conductive pen core 42.

[0077] When the active stylus is used, when the pen tip 421 of the conductive pen core 42 contacts the touch panel 302, the pressure sensing unit connected to the conductive pen core 42 senses the pressure generated by the conductive pen core 42 contacting the touch panel 302 and outputs a pressure signal. The pressure signal is transmitted through the conductive pen core 42, and the touch panel 302 receives the signal to transmit the pressure value generated by the active stylus contacting the touch panel 302 to the touch panel 302, so that the touch panel 302 obtains the spatial vector coordinates and direction angle of the active stylus.

[0078] like Fig.19As shown, the present invention also provides an interactive method of a touch system, comprising: the touch panel 302 sends an uplink signal to the active stylus; the conductive element of the active stylus receives the uplink signal; the active stylus obtains the uplink signal and controls the conductive pen core to send a downlink signal according to the uplink signal; the touch panel receives the downlink signal to obtain the spatial vector coordinates and / or direction angle of the active stylus. The active stylus controls the conductive pen core 42 to send a downlink signal at a corresponding frequency; the touch panel 302 receives and obtains the spatial vector coordinates and / or direction angle of the active stylus according to the downlink signal.

[0079] The above is an implementation of the embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the embodiment of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An active stylus pen, characterized in that: The pen tip mechanism comprises a conductive pen core and an isolating member for sending signals, wherein the conductive pen core is made of a soft conductive material, and the conductive pen core comprises a pen head and a positioning part at two opposite ends thereof, and a neck connected between the positioning part and the pen head, wherein the isolating member is sleeved outside the neck, the pen head extends out of one end of the isolating member, and the positioning part extends out of the other end of the isolating member, and the radial dimension of the neck gradually increases in the direction from the positioning part to the pen head, and ... The conductive member is sleeved outside the isolating member, and is used for receiving signals, and the conductive pen core is isolated from the conductive member; the conductive member includes a first conductive tube, a second conductive tube, and a connecting ring connected between the first conductive tube and the second conductive tube, the first conductive tube and the second conductive tube are arranged along the axial direction of the conductive pen core, and the outer diameter of the second conductive tube is greater than the outer diameter of the first conductive tube to enhance the receiving ability of the conductive member, and a positioning ring is provided at one end of the positioning shell close to the pen tip mechanism, and the positioning ring is inserted into the inner cavity of the second conductive tube and abuts against the connecting ring.

2. The active stylus pen according to claim 1, characterized in that: The active stylus pen further includes a mainboard, and the positioning portion is electrically connected to the mainboard.

3. The active stylus pen according to claim 1, characterized in that: The isolating member includes a first positioning tube and a second positioning tube connected to each other along the extension direction of the neck, the end surface of the first positioning tube away from the second positioning tube abuts against the pen tip, and the end surface of the second positioning tube away from the first positioning tube abuts against the positioning portion.

4. The active stylus pen according to claim 3, characterized in that: The outer surface of the pen tip includes an arc surface at the top and a frustum surface connected to the arc surface. The outer peripheral surface of the first positioning tube is a frustum surface. The taper of the frustum surface of the pen tip is the same as the taper of the frustum surface of the first positioning tube.

5. The active stylus pen according to claim 3, characterized in that: The outer surface of the pen tip includes a hemispherical surface located at the top and a frustum surface connected to the hemispherical surface. The outer peripheral surface of the first positioning tube is a frustum surface. The frustum surface of the pen tip is smoothly connected to the frustum surface of the first positioning tube.

6. The active stylus pen according to claim 3, characterized in that: The neck includes an upper neck and a lower neck connected to each other, the upper neck is close to the positioning portion, and the lower neck is close to the pen tip; the upper neck and the lower neck are both frustoconical, the taper of the upper neck is smaller than the taper of the lower neck, and the outer circumferential surface of the lower neck forms a first positioning surface; the first positioning surface is in contact with the inner circumferential surface of the first positioning tube.

7. The active stylus pen according to claim 6, characterized in that: The pen tip includes a nib and a connecting part connected between the neck and the nib, the outer circumferential surface of the nib is a hemispherical surface, the connecting part is a frustum, the radial dimension of the connecting part is greater than the radial dimension of the lower neck, a second positioning surface is formed between the outer circumferential surface of the connecting part and the outer circumferential surface of the lower neck, and the end surface of the first positioning tube is in contact with the second positioning surface.

8. The active stylus pen according to claim 7, characterized in that: The taper of the connecting portion is greater than the taper of the lower neck portion.

9. The active stylus pen according to claim 6, characterized in that: The positioning portion is a cylinder, the radial dimension of the positioning portion is greater than the radial dimension of the upper neck, and the end surface of the second positioning tube away from the first positioning tube is in contact with the end surface of the positioning portion facing the pen tip.

10. The active stylus pen according to claim 1, characterized in that: After the conductive pen core is injection molded, the isolating piece is again injection molded on its outer peripheral surface to form the conductive pen core and the isolating piece so that the conductive pen core and the isolating piece form an integral structure.

11. The active stylus pen according to claim 1, characterized in that: The conductive material is a conductive polymer, and the hardness of the conductive pen core can be adjusted.

12. The active stylus pen according to claim 1, characterized in that: The first conductive tube, the second conductive tube and the conductive pen core are coaxially arranged.

13. The active stylus pen according to claim 1, characterized in that: The conductive member further comprises an outer expansion tube, which is connected to an end of the second conductive tube away from the first conductive tube, and an outer diameter of the outer expansion tube is greater than an outer diameter of the second conductive tube.

14. The active stylus pen according to claim 1, characterized in that: It also includes a shell, the conductive member is connected to the end of the shell close to the pen tip mechanism, and the conductive member is partially exposed outside the shell.

15. The active stylus pen according to claim 14, characterized in that: The conductive element comprises a first conductive cylinder surrounding the isolating element and a conductive outer cylinder surrounding the first conductive cylinder, and the outer portion of the conductive outer cylinder is exposed from the housing.

16. The active stylus pen according to claim 15, characterized in that: The conductive outer cylinder comprises a conductive ring connected to the first conductive cylinder, the end surface of the shell abuts against the end surface of the conductive ring, and the outer peripheral surface of the conductive ring is connected to the outer peripheral surface of the shell.

17. A touch control system, characterized in that: An electronic device comprising a touch panel and an active stylus as described in any one of claims 1 to 16, wherein the touch panel sends an uplink signal to the active stylus, a conductive member of the active stylus receives the uplink signal, and the active stylus obtains the uplink signal and controls the conductive pen core to send a downlink signal to the touch panel.

18. The touch control system according to claim 17, characterized in that: When the touch panel sends an uplink signal to the active stylus, the conductive element is used to receive the signal; when the conductive pen core sends a downlink signal to the touch panel, the conductive element is used to prevent the signal sent by the conductive pen core from diverging.

19. An interactive method of a touch control system, characterized in that: The touch control system includes an active stylus as described in any one of claims 1 to 16 and an electronic device with a touch panel, and the interaction method includes: the touch panel sends an uplink signal to the active stylus; the conductive member of the active stylus receives the uplink signal; the active stylus obtains the uplink signal and controls the conductive pen core to send a downlink signal according to the uplink signal; the touch panel receives the downlink signal to obtain the spatial vector coordinates and / or direction angle of the active stylus.

Images