Touch pen

Abstract

The present invention relates to a stylus pen, and more particularly, to a stylus pen which can clearly distinguish hover operation, contact operation, and pen pressure operation, has a simple internal structure, is easy to sense pen pressure, has relatively little change in performance due to assembly deviation, and can reduce manufacturing cost, and more particularly, to a stylus pen which can clearly distinguish hover operation, contact operation, and pen pressure operation. A stylus according to an embodiment of the present invention comprises: an inductor unit; a first elastic member disposed apart from the inductor part; a core body which is disposed so as to pass through the inductor unit and which is moved in the direction toward the first elastic member by an external force acting on one end portion of the core body; and a magnetic body which is disposed between the inductor part and the first elastic member and which is compressed by the movement of the core when the magnetic body is interlocked with the core to change the separation distance from the inductor part, the first elastic member being compressed by the movement of the core.

Description

Technical Field

[0001] The present invention relates to a stylus pen, and more particularly, to a stylus pen that can clearly distinguish between hovering operations, contact operations, and pen pressure operations, has a simple internal structure, is easy to sense pen pressure, has relatively little performance variation caused by assembly deviation, and can reduce manufacturing costs. Background Art

[0002] A stylus is a pen-shaped device that allows users to input data by lightly dragging or clicking on the screen. Users use a stylus for delicate touch input.

[0003] Styluses can be divided into active styluses and passive styluses based on whether they have batteries and electronic components inside.

[0004] Active styluses have better basic performance than passive styluses and offer additional features (pen pressure, hovering, buttons). However, they are expensive and require a power source, requiring battery charging. Therefore, they are not widely used except by advanced users.

[0005] Passive styluses have the advantages of being inexpensive and battery-free compared to active styluses. However, they lack the ability to perform precise touch recognition. Recently, however, technologies such as electromagnetic resonance (EMR) and capacitive resonance (CPR) have been proposed to achieve precise touch recognition for passive styluses.

[0006] While the EMR method offers advantages in writing / drawing quality, which is the core function of a stylus, it requires an EMR sensor panel and EMR driver IC in addition to the capacitive touch panel, resulting in greater thickness and higher costs.

[0007] The capacitive resonance method uses an ordinary capacitive touch sensor and a touch controller IC to improve the performance of the IC to further support pen touch without adding additional costs.

[0008] In EMR and capacitive resonance methods, the amplitude of the resonant signal must be large for the touch sensor to accurately detect touches with a stylus. Therefore, the frequency of the drive signal transmitted to the stylus must be nearly identical to the resonant frequency of the resonant circuit built into the stylus. However, with existing EMR and capacitive resonance methods, even if the resonant frequency and the drive signal frequency match, signal transmission suffers from significant attenuation, making it difficult to achieve the desired effect. Consequently, despite extensive efforts by numerous touch controller IC vendors, no company has yet successfully achieved mass production due to a lack of sufficient output signals.

[0009] Therefore, in order to manufacture an EMR or capacitive resonant stylus that can generate a maximum output signal, the design of the internal resonant circuit and the structure of the stylus become very important factors.

[0010] Furthermore, in passive styluses using EMR (Electro-Magnetic Resonance) technology, a digitizer transmits electromagnetic signals to the pen, which then receives resonant signals. These digitizers are densely packed with coils that induce currents in response to magnetic signals, thereby receiving touch information from the pen. However, these digitizers are unable to accommodate the miniaturization and thinning of touch input devices, and lack design flexibility.

[0011] On the other hand, in order to detect pen pressure, existing styluses must use expensive pressure sensors, and it is difficult to measure accurate pen pressure. Summary of the Invention

[0012] Technical problems to be solved

[0013] The technical problem to be solved by the present invention is to provide a stylus that can clearly distinguish various operations of the stylus, such as hovering operation, contact operation and pen pressure operation.

[0014] In addition, a stylus pen capable of reducing manufacturing costs by reducing the number of internal components is provided.

[0015] In addition, a stylus pen is provided in which performance variation caused by assembly deviation of internal components is relatively small.

[0016] Technical Solution

[0017] According to an embodiment of the present invention, the stylus pen includes: an inductor part; a first elastic component, which is configured to be separated from the inductor part; a core, which is configured to pass through the inductor part and moves toward the first elastic component side by an external force acting on one end; and a magnetic body, which is configured between the inductor part and the first elastic component and is linked with the core to change the separation distance between the core and the inductor part, and the first elastic component is compressed by the movement of the core.

[0018] Wherein, the first elastic component may be a spring.

[0019] The first elastic component may be arranged in a state where at least a portion of the first elastic component is compressed.

[0020] Wherein, a second elastic component is further included, which surrounds a portion of the first elastic component and is compressed by the movement of the core. The second elastic component can be made of rubber material or a spring.

[0021] Wherein, the first elastic component can be made of rubber material.

[0022] Wherein, a second elastic component is further included, which surrounds a portion of the first elastic component and is compressed by the movement of the core. The second elastic component can be made of a rubber material that is relatively harder than the first elastic component.

[0023] It also includes: a shell, in which the inductor part, the first elastic component, the magnetic body and the rest of the core except one end portion are arranged; a first fixed component, fixedly arranged inside the shell; a second fixed component, arranged inside the shell at a predetermined interval from the first fixed component; and a movable component, which moves in conjunction with the core between the first fixed component and the second fixed component; the first elastic component is fixedly arranged inside the second fixed component and can be squeezed and compressed by the movable component moving toward the side of the second fixed component.

[0024] Among them, the first fixing component includes: a first cavity for configuring the magnetic body; a second cavity for configuring a part of the inductor part; and a partition, which is configured between the first cavity and the second cavity and has a through hole through which the core passes, and the diameter of the through hole of the partition can be larger than the diameter of the through hole of the magnetic body.

[0025] In which, the core has a step portion formed between the one end and the other end, and based on the step portion, the thickness of one end side of the core is thicker than the thickness of the other end side of the core, and the diameter of the through hole of the inductor part and the through hole of the first fixing part can be larger than the diameter of the through hole of the magnetic body.

[0026] Here, due to the external force acting on one end of the core, the step portion pushes one side of the magnetic body, so that the distance between the magnetic body and the inductor portion can be increased.

[0027] It also includes an internal shell, which is arranged inside the outer shell and surrounds the inductor part, the first fixing part, the movable part and the second fixing part. The first fixing part and the second fixing part include one or more first protrusions protruding from the outside. The internal shell may have a first opening for arranging the first protrusions of the first fixing part and the second fixing part.

[0028] Among them, the first opening portion includes a base groove extending along the length direction of the internal shell and a plurality of extension grooves connected to the base groove and extending in a direction perpendicular to the length direction of the base groove, and the plurality of extension grooves are formed at positions corresponding to the first protrusions of the first fixing part and the second fixing part.

[0029] In which, the first fixed component includes one or more first grooves formed on the outside, the movable component has one or more extensions configured to the first grooves and one or more first grooves and second grooves formed on the outside, and the second fixed component includes a first extension and a second extension respectively configured in the first groove and the second groove of the movable component. When the movable component moves, the extension of the movable component moves in the first groove of the first fixed component, and the first extension and the second extension of the second fixed component can be configured in the first groove and the second groove of the movable component.

[0030] The second elastic component has a groove, the movable component has a first groove, and the second fixing component may include a first extension portion configured in the groove of the second elastic component and the first groove of the movable component.

[0031] Among them, it includes: a capacitor part, including a basic capacitor electrically connected to the inductor part and a jumping capacitor (Jumping capacitor) electrically short-circuited or open-circuited with the basic capacitor; a substrate, on which the capacitor part is mounted; a ring terminal, arranged on one side of the movable part between the movable part and the first fixed part, and moving in conjunction with the movable part; and a connecting terminal, arranged on the side of the movable part and the second fixed part, one end of which is in contact with the ring terminal and the other end of which is connected to the connecting pad of the substrate. When the movable part moves, the ring terminal is separated from one end of the connecting terminal, and the basic capacitor and the jumping capacitor can be electrically open-circuited with each other.

[0032] Wherein, grooves for arranging the connection terminals may be provided on side surfaces of the movable component and the second fixed component.

[0033] The movement of the core changes the distance between the magnetic body and the inductor portion, and the inductance value of the inductor portion changes as the distance changes. As the inductance value changes, the resonant frequency of the signal emitted to the outside may change.

[0034] The magnetic body may include: a cover portion disposed between the other end portion of the core and the moving component; and an elastic body disposed between the cover portion and the magnetic body.

[0035] Effects of the Invention

[0036] When the stylus pen according to the embodiment of the present invention is used, there is an advantage in that a hovering operation, a contact operation, and a pen pressure operation can be clearly distinguished.

[0037] In addition, there is an advantage in that the manufacturing cost can be reduced by reducing the number of internal components.

[0038] In addition, there is an advantage that performance variations caused by assembly deviations of internal components are relatively small.

[0039] In addition, it has the advantage of a simple internal structure.

[0040] In addition, there is an advantage in that a touch operation and a pressure operation with the stylus pen can be distinguished by utilizing a change in the distance between the magnetic body and the inductor portion caused by the movement of the core. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a perspective view of a stylus pen 100 according to one embodiment of the present invention;

[0042] Figure 2 yes Figure 1 A cross-sectional view of portion A of the stylus pen 100 is shown;

[0043] Figure 3 (a) is used to illustrate Figure 2 The perspective view of the structure of the inner shell 110 and the guide portion 115 is shown. Figure 3 (b) is a perspective view of only the inner housing 110;

[0044] Figure 4 is to remove Figure 3 (a) is a perspective view of the case of the inner housing 110;

[0045] Figure 5 (a) and (b) are observed from multiple sides Figure 2 and Figure 4A perspective view of the first fixing member 130 is shown;

[0046] Figure 6 (a) and (b) are observed from multiple sides Figure 2 and Figure 4 A perspective view of the moving member 170 is shown;

[0047] Figure 7 (a) and (b) are observed from multiple sides Figure 2 and Figure 4 A perspective view of the second fixing member 190 is shown;

[0048] Figure 8 Observed from one side Figure 2 and Figure 4 A perspective view of some of the components shown;

[0049] Figure 9 (a) and (b) are Figure 2 and Figure 4 A perspective view of only some of the components shown;

[0050] Figure 10 (a) to (c) are used to illustrate Figures 1 to 9 A schematic diagram of the operation of the stylus pen 100 is shown;

[0051] Figure 11 (a) is an example showing the Figure 10 Schematic diagram of the change of the LC value of the resonant circuit portion during operation from (a) to (c);

[0052] Figure 11 (b) shows Figure 10 Graphs of frequency characteristics in each operating state (a) to (c);

[0053] Figure 12 (a) to (c) are used to illustrate the assembly Figures 1 to 10 The stylus pen 100 shown is a schematic diagram of a problem caused by assembly deviation of the core 102;

[0054] Figure 13 It shows Figure 12 A graph showing a change in the resonant frequency of each of (a) to (c) as a function of the pressure applied to the core 102;

[0055] Figure 14 (a) to (c) are used to illustrate the assembly Figures 1 to 10 The stylus pen 100 shown is a schematic diagram of a problem caused by assembly deviation of the connection terminals 165a and 165b;

[0056] Figure 15is a perspective view of a stylus pen 100 ′ according to another embodiment of the present invention;

[0057] Figure 16 yes Figure 15 A cross-sectional view of portion A' of the stylus pen 100' is shown;

[0058] Figure 17 (a) and (b) are used to illustrate Figure 16 A schematic diagram of the first elastic member 180' is shown;

[0059] Figure 18 (a) to (c) are used to illustrate Figures 15 to 17 A schematic diagram of the operation of the stylus pen 100 ′ is shown;

[0060] Figure 19 (a) and (b) are schematic diagrams showing examples of assembly deviation of the core 102;

[0061] Figure 20 yes Figure 19 Graphs showing changes in the resonant frequency of each of (a) and (b) as a function of the pressure applied to the core 102 .

[0062] Description of Reference Numerals

[0063] 100, 100': Stylus 101: Housing

[0064] 102: core 110: inner shell

[0065] 115: Guide portion 120: Inductor portion

[0066] 130: First fixing member 190: Second fixing member

[0067] 140: Magnetic body 150: Cover

[0068] 155: Elastomer 161: Ring terminal

[0069] 165a, 165b: connection terminals 170: moving part

[0070] 180, 180': first elastic member 185: second elastic member

[0071] 210, 210': base plate DETAILED DESCRIPTION

[0072] The detailed description of the invention described below refers to the accompanying drawings that illustrate specific embodiments of the invention as examples. These embodiments are described in detail so that one of ordinary skill in the art can implement them. It should be understood that the various embodiments of the invention are different from each other, but do not need to be mutually exclusive. For example, the specific shapes, structures and characteristics described here can be implemented in other embodiments without exceeding the spirit and scope of the invention in one embodiment. In addition, it should be understood that the position or configuration of individual components in each disclosed embodiment can be changed without exceeding the spirit and scope of the invention. Therefore, the detailed description described below is not intended to be limiting, and the scope of the invention, if properly described, is limited only to all scopes equivalent to the claims thereof and the appended claims. Similar reference numerals in the figures represent the same or similar functions in multiple aspects.

[0073] Figure 1 is a perspective view of a stylus pen 100 according to one embodiment of the present invention.

[0074] Reference Figure 1 , a stylus pen 100 according to one embodiment of the present invention includes a housing 101 and a core 102 .

[0075] The housing 101 forms the outer shape of the stylus pen 100. The housing 101 has a pen shape. The housing 101 may be formed by combining two or more parts, or may be formed integrally into one part.

[0076] The housing 101 may be made of a non-conductive synthetic resin material.

[0077] The housing 101 may include a first housing 101a and a second housing 101b. The first housing 101a and the second housing 101b may be combined with each other to form the outer shape of the stylus pen 100. Various components are built inside the first housing 101a and the second housing 101b.

[0078] The housing 101 may be provided with a button portion 109. The button portion 109 may be provided on the second housing 101b. The button portion 109 may be used to execute a specific operation of the stylus pen 100. For example, the button may be used to cancel an operation.

[0079] Core 102 includes one end disposed outside of housing 101, and the remainder of the core 102 is disposed inside housing 101. External force can cause a portion of the one end of core 102 to move into housing 101. As the external force increases, the volume of the portion of the one end of core 102 that enters housing 101 increases. When the applied external force decreases, the portion of the one end of core 102 re-extends outside of housing 101. When the external force disappears, the portion of the one end of core 102 returns to its original position.

[0080] Below, we will refer to Figures 2 to 8 Various components arranged inside the housing 101 will be described.

[0081] Figure 2 yes Figure 1 The cross-sectional view of part A of the stylus pen 100 is shown. Figure 3 (a) is used to illustrate Figure 2 The perspective view of the structure of the inner shell 110 and the guide portion 115 is shown. Figure 3 (b) is a perspective view of only the inner shell 110, Figure 4 is to remove Figure 3 (a) is a perspective view of the case of the inner housing 110, Figure 5 (a) and (b) are observed from multiple sides Figure 2 and Figure 4 The perspective view of the first fixing member 130 is shown, Figure 6 (a) and (b) are observed from multiple sides Figure 2 and Figure 4 The perspective view of the moving part 170 is shown, Figure 7 (a) and (b) are observed from multiple sides Figure 2 and Figure 4 The perspective view of the second fixing member 190 is shown, Figure 8 Observed from one side Figure 2 and Figure 4 A perspective view of some components shown, Figure 9 (a) and (b) are Figure 2 and Figure 4 A perspective view of only some of the components shown.

[0082] Reference Figure 2 The stylus pen 100 includes an inner housing 110, a guide portion 115, an inductor portion 120, a capacitor portion (not shown), a first fixing component 130, a magnetic body 140, a cover component 150, a ring terminal 161, contact terminals 165a and 165b, a moving component 170, a first elastic component 180, a second elastic component 185, an elastic body 155, a second fixing component 190 and a substrate 210.

[0083] The inner housing 110 is made of a non-conductive material and is disposed within the outer shell 101. Specifically, the inner housing 110 may be disposed within the first housing 101a of the outer shell 101. The inner housing 110 may have a shape that surrounds the inductor portion 120, the first fixing member 130, the ferrite chip 140, the cover member 150, the ring terminal 161, the contact terminals 165a and 165b, the movable member 170, the first elastic member 180, the second elastic member 185, the elastic body 155, and the second fixing member 190. The inner housing 110 may protect the various components disposed therein from physical and / or electrical shock.

[0084] Reference Figure 2 and Figure 3 In (a) and (b), the internal housing 110 may have a first opening 111 configured by the first protrusion 131 of the first fixing member 130 and the first protrusion 192 of the second fixing member 190. The first opening 111 may have a base groove 111b extending along the length of the stylus 100 and a plurality of extension grooves 111e connected to the base groove 111b and extending in a direction perpendicular to the length of the base groove 111b. The plurality of extension grooves 111e may be formed at positions corresponding to the plurality of first protrusions 131 and 192. As an example, the first opening 111 may have an "E" shape.

[0085] The inner housing 110 can be rotated counterclockwise or clockwise about the core 102 to position the plurality of first protrusions 131 and 192 from the plurality of extension slots 111e to the base slots 111b, or vice versa. Specifically, by positioning the plurality of first protrusions 131 and 192 from the base slots 111b to the plurality of extension slots 111e, the first fixing member 130 and the second fixing member 190 can be fixed in position within the inner housing 110. Meanwhile, the movable member 170 is not directly coupled to the inner housing 110, and therefore can be moved in conjunction with the linear reciprocating motion of the core 102 by an external force, between the first fixing member 130 and the second fixing member 190.

[0086] The inner housing 110 may have a second opening 113, in which the extension coils 125a and 125b are positioned, exposing the connection terminals 165a and 165b. The second opening 113 provides space for the extension coils 125a and 125b and protects them from external impact. Furthermore, the second opening 113 allows for easy identification of the installed positions of the connection terminals 165a and 165b.

[0087] Guide portion 115 can be positioned between inductor 120 and housing 101, and between core 102 and inner housing 110. Guide portion 115 includes a through-hole through which core 102 passes. This guide portion 115 guides the position of core 102, stably secures inductor 120, and blocks external electrical or magnetic influences on inductor 120. This guide portion 115 can be separate from inner housing 110, but is not limited thereto. It can also be integrally formed with inner housing 110.

[0088] Reference Figure 2 and Figure 4 The guide portion 115, the inductor portion 120, the first fixing component 130, the movable component 170, and the second fixing component 190 can be sequentially arranged along the length direction of the stylus pen 100 (hereinafter referred to as the "length direction") from one end of the core 102. That is, along the length direction, the inductor portion 120 can be arranged on the guide portion 115, the first fixing component 130 can be arranged on the inductor portion 120, the movable component 170 can be arranged on the first fixing component 130, and the second fixing component 190 can be arranged on the movable component 170.

[0089] The inductor portion 120 includes a ferrite core 121 and a coil portion 123 wound around the ferrite core 121. The ferrite core 121 has a through portion inside, through which the core 102 passes. The through portion allows the core 102 to perform linear reciprocating motion along the longitudinal direction. The coil portion 123 can be wound around the ferrite core 123 in at least one layer. The two ends of the coil portion 123 can be connected to extension coils 125a and 125b, respectively. The extension coils 125a and 125b can extend along the longitudinal direction and be connected to coil electrodes 213a and 213b, respectively, arranged on the substrate 210.

[0090] The inductor unit 120 is fixedly mounted inside the housing 101. The inductor unit 120 may be fixed between the first fixing member 130 and the guide portion 115 in the longitudinal direction. The inductor unit 120 may be fixed by the inner housing 110 in a direction perpendicular to the longitudinal direction (hereinafter referred to as the "vertical direction").

[0091] The inductor portion 120 may be fixedly disposed on one side of the first fixing member 130 . Here, a portion of the inductor portion 120 may be disposed in the second cavity 133 b of the first fixing member 130 .

[0092] Inductor unit 120 can be electrically connected to a capacitor unit (not shown) mounted on substrate 210 to form a resonant circuit unit. The resonant frequency can be set by the inductance (L) value of inductor unit 120 and the inductance (C) value of the capacitor unit (not shown). Since the inductance (L) value of inductor unit 120 changes with the movement of magnetic body 140, the resonant frequency can be changed.

[0093] The capacitor unit (not shown) is disposed on substrate 210 and has a predetermined capacitance (C). The capacitor unit (not shown) may include two or more capacitors. At least one of the two or more capacitors is a base capacitor and may be electrically connected to inductor unit 120 at all times to form a circuit.

[0094] The capacitor portion (not shown) includes a skip capacitor 215. The skip capacitor 215 is mounted on the substrate 210 and can form a circuit to be electrically connected to the connection terminals 165a and 165b. For example, the skip capacitor 215 can be electrically connected to the connection pads 211a and 211b configured on the substrate 210 through the conductive patterns 212a and 212b. The skip capacitor 215 can be electrically connected to or separated from the basic capacitor as the core 102 moves. When no external force is applied to the core 102, the ring terminal 161 contacts the connection terminals 165a and 165b, so that the skip capacitor 215 is electrically connected to the basic capacitor. On the contrary, when an external force is applied to the core 102, so that the moving part 170 linked to the core 102 moves toward the side of the first elastic part 180, the ring terminal 161 separates from the connection terminals 165a and 165b, and the skip capacitor 215 can be electrically separated from the basic capacitor.

[0095] Reference Figure 2 、 Figure 4 、 Figure 5 In (a) and (b), the first fixing member 130 is disposed inside the inner housing 110. The first fixing member 130 has a cylindrical shape as a whole. The first fixing member 130 has a first cavity 133a and a second cavity 133b. Figure 2 The magnetic body 140 is shown disposed in the first cavity 133a, and Figure 2 One end of the ferrite core 121 of the inductor unit 120 is disposed in the second cavity 133b. A partition 132 is disposed between the first cavity 133a and the second cavity 133b. The partition 132 has a through hole 132h through which the core 102 passes.

[0096] The inductor portion 120 is disposed on one side of the first fixing member 130 , and the second fixing member 190 is disposed at a predetermined distance from the other side of the first fixing member 130 .

[0097] A plurality of the first protrusions 131 may be disposed on the outer side surface of the first fixing member 130 .

[0098] A plurality of first grooves 135 may be formed on the outer side of the first fixing member 130, in which a plurality of extensions 171 of the moving member 170 are respectively disposed. Figure 4 The extended coils 125a, 125b are shown maintaining the second slots 137 at a certain distance.

[0099] Reference Figure 2 、 Figure 4 、 Figure 6 In (a) and (b), the moving member 170 is disposed between the first fixing member 130 and the second fixing member 190. The moving member 170 can be linked with the movement of the core 102 in the longitudinal direction to linearly reciprocate between the first fixing member 130 and the second fixing member 190.

[0100] The moving member 170 is disposed inside the inner housing 110. The moving member 170 has a cylindrical shape as a whole and has a first cavity 173a and a second cavity 173b. Figure 2 A portion of the first elastic member 180 is shown disposed in the first cavity 173a, and Figure 2 A portion of the cover 150 is shown disposed in the second cavity 173 b . A partition 172 is disposed between the first cavity 173 a and the second cavity 173 b . The partition 172 is disposed between the cover 150 and the first elastic member 180 .

[0101] The movable member 170 has a plurality of extensions 171 disposed on the outer side thereof so as to be aligned with the first grooves 135 of the first fixing member 130. The extensions 171 are shaped to extend along the longitudinal direction and are movable along the first grooves 135 of the first fixing member 130.

[0102] A plurality of second grooves 175 may be formed on the outer side of the moving part 170, wherein the second grooves 175 are respectively configured Figure 7 As the movable member 170 reciprocates linearly along the longitudinal direction, the second slot 175 also moves in conjunction with the second extending portion 193 of the second fixing member 190, so that the position of the second extending portion 193 of the second fixing member 190 disposed in the second slot 175 can be changed.

[0103] The second groove 175 of the movable member 170 may have a shape corresponding to the second extension 193 of the second fixing member 190. The second groove 175 may have a shape that prevents the second extension 193 of the second fixing member 190 from completely detaching from the second groove 175 when the movable member 170 moves away from the second fixing member 190. To this end, the second groove 175 may have a shape in which the width of the second groove 175 narrows as it approaches the side of the second fixing member 190, and the second extension 193 of the second fixing member 190 may have a shape that protrudes along the width direction of the second groove 175.

[0104] The outer side of the moving part 170 may be formed with a first groove 177. The first groove 177 is formed extending along the length direction and Figure 9 As shown in (b), the connection terminals 165a and 165b can be arranged in the first groove 177. The first groove 177 can fix and guide the positions of the connection terminals 165a and 165b. In addition, the first extension portion 192 of the second fixing member 190 can be arranged together with the connection terminals 165a and 165b in the first groove 177.

[0105] The movable part 175 is arranged between the first fixed part 130 and the second fixed part 190. Because the extension portion 171 of the movable part 170 is arranged in the first groove 135 of the first fixed part 130, and the first extension portion 199 and the second extension portion 193 of the second fixed part 190 are arranged in the first groove 175 and the second groove 177 of the movable part 170, it has the advantage that it will not detach outward when the movable part 175 moves frequently.

[0106] The moving part 170 includes a surface 179 configured with the first cavity 173a. Figure 2 and Figure 8 The ring terminal 161 shown can be disposed on the one surface 179. The shape of the one surface 179 can correspond to the shape of the ring terminal 161. The ring terminal 161 disposed on the one surface 179 can be guided by the inner side surfaces of one or more extension portions 171 disposed on the periphery.

[0107] Reference Figure 2 、 Figure 4 and Figure 7 The second fixing member 190 is fixedly disposed inside the outer shell 101. At least a portion of the second fixing member 190 is fixed inside the inner housing 110.

[0108] The second fixing member 190 includes a cylindrical base portion 191. One side 191a of the base portion 191 has a cavity 195 in which a Figure 2 A portion of the first elastic member 180 is shown. Figure 2 The second elastic member 185 is shown.

[0109] The second fixing member 190 includes a first extension portion 199 and a second extension portion 193 extending from one side 191a of the base portion 191 toward the movable member 170. A plurality of first extension portions 199 and second extension portions 193 may be arranged on one side 191a of the base portion 191. Specifically, the two first extension portions 199 may be arranged to face each other, and the two second extension portions 193 may be arranged to face each other. The plurality of first extension portions 199 and second extension portions 191 may guide the movable member 170 from four sides. Figure 2 The outer side of the second elastic member 185 is shown. Therefore, the position of the second elastic member 185 can be fixed by the plurality of first extensions 199 and second extensions 191.

[0110] The inner side surface of the first extension portion 199 guides the outer side surface of the second elastic member 185, and the outer side surface of the first extension portion 199 can support Figure 2 and Figure 4 A portion of the connecting terminals 165a, 165b is shown.

[0111] The second extension 193 may have a predetermined shape to prevent it from being separated from the second groove 175 after being coupled to the second groove 175 of the moving part 170. For example, the second extension 193 may have a shape in which at least a portion thereof protrudes to avoid being separated from the second groove 175.

[0112] The second fixing member 190 may include a groove 194 formed on the outer side surface of the base portion 191. The bottom surface of the groove 194 may be connected to the outer side surface of the first extension portion 199 without any additional step difference. Figure 2 and Figure 4 A portion of the illustrated connection terminals 165 a and 165 b may be disposed in the groove 194 .

[0113] The second fixing member 190 may include a placement portion 196 extending from the other side (not shown) of the base portion 191 along the longitudinal direction. The placement portion 196 may have a cavity 197 in which a Figure 2 and Figure 4 The substrate 210 is shown.

[0114] The second fixing member 190 may have a Figure 2 and Figure 4 The illustrated connection terminals 165a and 165b are connected to an opening 198 of the substrate 210 disposed in the cavity 197. The other ends of the connection terminals 165a and 165b are disposed in the opening 198 so as to be connected to the connection pads 211a and 211b of the substrate 210.

[0115] Reference Figure 2 、 Figure 4 、 Figure 8 、 Figure 9 In (a) and (b), the core 102 extends along the longitudinal direction by a predetermined length, and one end portion may have a pointed shape. Here, the one end portion is exposed outside the housing 101.

[0116] Core 102 includes a stepped portion 102T located in a portion of the middle portion between one end and the other end. The thickness of the middle portion may differ between one end and the other end, relative to stepped portion 102T. A first thickness D1 at one end of the middle portion, relative to stepped portion 102T, may be thicker than a second thickness D2 at the other end of the middle portion. Due to the structure of stepped portion 102T, when core 102 is moved in the longitudinal direction by an external force, magnetic body 140 may be moved along with it. Specifically, when core 102 moves, stepped portion 102T can push one side of magnetic body 140, causing magnetic body 140 to move in the longitudinal direction. As magnetic body 140 moves along the longitudinal direction, the distance between inductor 120 and magnetic body 140 changes. This change in distance alters the inductance (L) value of inductor 120, and this change in inductance value alters the resonant frequency of stylus 100. The change in the resonant frequency may be sensed in a stylus sensing device interacting with the stylus 100 to detect the pen pressure (pressure) applied to the core 102 .

[0117] The magnetic body 140 is arranged as follows Figure 5 The first cavity 133a of the first fixing member 130 is shown as cylindrical. In addition, the magnetic body 140 has a through hole that passes through a portion of the core 102. The diameter of the through hole can be formed to be equal to or greater than the second thickness D2 and less than the first thickness D1.

[0118] The magnetic body 140 may be a ferrite chip.

[0119] The magnetic body 140 can linearly reciprocate along the longitudinal direction in conjunction with the core 102. As the magnetic body 140 moves in conjunction with the core 102, the inductance (L) value of the inductor portion 120 can be changed.

[0120] The cover 161 is disposed at the other end of the core 102. The cover 161 may have a shape that covers the other end of the core 102. For example, the cover 161 may have a cylindrical shape with different thicknesses at the upper and lower portions.

[0121] An elastic body 155 may be disposed between the cover 161 and the magnetic body 140. The elastic body 155 may be a spring. One end of the elastic body 155 may be inserted into a portion of the cover 161, and the other end of the elastic body 155 may be in contact with the magnetic body 140.

[0122] The elastic body 155 can be used to correct the deviation of the magnetic body 140. For example, when the length (or height) of the magnetic body 140 is 0.1 mm smaller than the specification, the elastic body 155 will make the magnetic body 140 close to the partition 132 of the first fixing member 130.

[0123] The ring terminal 161 is a circular shape with a hollow interior, and electrically connects the two connection terminals 165a and 165b. Here, the shape of the ring terminal 161 is not limited to a circle, and may also have a polygonal shape.

[0124] The ring terminal 161 is disposed on one surface of the moving member 170 and moves in conjunction with the moving member 170. That is, the ring terminal 161 moves together with the linear reciprocating motion of the moving member 170 in the longitudinal direction.

[0125] The connecting terminals 165a and 165b include one side portion that contacts or separates from the ring terminal 161 and the other side portion that is connected to the substrate 210. The one side portion can contact or separate from the ring terminal 161 by the movement of the ring terminal 161 linked to the moving part 170. The other side portion is directly connected to the base plate 210 by welding or the like. Figure 2 The substrate 210 is shown with connection pads 211a, 211b.

[0126] The connection terminals 165a and 165b include a base portion disposed between the one side portion and the other side portion. The base portion may have a shape extending along the length direction. Figure 6 The first groove 177 of the movable member 170 is configured Figure 7 The second fixing member 190 is shown in the slot 194 and can be guided by the first extension 199 of the second fixing member 190.

[0127] The first elastic member 180 is disposed in the second fixing member 190. The first elastic member 180 may have a cylindrical shape that is elongated along the longitudinal direction. The first elastic member 180 may be made of a rubber material.

[0128] One end portion of the first elastic member 180 may be disposed at Figure 7 The cavity 195 of the second fixing member 190 shown in FIG. 1 is configured with the other end portion thereof as shown in FIG. Figure 6 The first cavity 173a of the moving component 170 is shown.

[0129] The second elastic member 185 is disposed within the second fixing member 190. The second elastic member 185 may have a flat cylindrical shape. The second elastic member 185 may be made of a rubber material. The second elastic member 185 may be made of a relatively harder rubber material than the first elastic member 180. Therefore, the second elastic member 185 may be made of a hard rubber material, while the first elastic member 180 may be made of a soft rubber material.

[0130] On the other hand, the second elastic member 185 may also be a spring. The second elastic member 185 may be a spring configured to respond to a relatively heavier force than the first elastic member 180 .

[0131] The second elastic member 185 is configured to have a thickness thinner than the first elastic member 180 in the length direction and a diameter wider than the first elastic member 180 in the vertical direction.

[0132] The second elastic member 185 is disposed so as to surround the middle portion of the first elastic member 180. Therefore, the second elastic member 185 has a through hole through which the first elastic member 180 passes.

[0133] The second elastic member 185 may have a groove 185g that fits over a portion of the first extension portion 199 of the second fixing member 190, as shown in FIG. Figure 9 As shown in (b), the second elastic member 185 can be stably fixed on the second fixing member 190.

[0134] Below, we will refer to Figure 10 Description based on Figures 1 to 9 Operation of the stylus 100 according to one embodiment is shown.

[0135] Figure 10 (a) to (c) are used to illustrate Figures 1 to 9 Schematic diagram of the operation of the stylus pen 100 shown. Specifically, Figure 10 (a) is a diagram showing the hovering state (H) of the stylus pen 100, Figure 10 (b) is a diagram showing the contact state (C) of the stylus pen 100, Figure 10 (c) is a diagram showing the writing pressure (P) state of the stylus pen 100 .

[0136] Reference Figure 10 (a), in the hovering state (H), since no external force acts on the core 102, there is no change in the internal components. In particular, the ring terminal 161 and the connection terminals 165a, 165b remain in contact with each other.

[0137] Reference Figure 10(b), in the contact state (C), a predetermined pressure acts on one end of the core 102. The core 102 moves toward the inner side of the housing 101 under the applied pressure. As the core 102 moves, the cover 150 pushes the moving part 170 toward the first elastic part 180, and the ring terminal 161 falls off from the connecting terminals 165a and 165b. Therefore, Figure 2 The electrical connection between skip capacitor 215 and the base capacitor is disconnected, reducing the overall capacitance of the capacitor section (not shown). Since magnetic body 140 does not move, the inductance of inductor section 120 remains unchanged. As the overall capacitance of the capacitor section (not shown) decreases, the resonant frequency changes.

[0138] Reference Figure 10 (c), in the pen pressure state (P), one end of the core 102 is applied with a greater pressure than that in the contact state (C). Under the greater pressure, the core 102 moves further toward the inner side of the shell 101, so that the magnetic body 140 is pushed by the step portion 102T of the core 102. As the magnetic body 140 is pushed, the elastic body 155 arranged between the cover 150 and the magnetic body 140 is compressed, and the first elastic part 180 and the second elastic part 185 are compressed by the movement of the moving part 170. Here, since the magnetic body 140 is away from the inductor part 120, the inductance (L) value of the inductor part 120 gradually decreases. Here, the capacitance of the capacitor part (not shown) remains the same as that in the contact state (C). Since the inductance value of the inductor part 120 decreases, the resonant frequency changes.

[0139] Figure 11 (a) shows an example according to Figure 10 The LC value of the resonant circuit part changes in the operation of (a) to (c), and the interval Th represents

[0140] Figure 10 (a) The hovering state, Tc point represents Figure 10 (b) The contact state, Tp interval represents Figure 10 (c) The pen pressure state.

[0141] Figure 11 (b) shows Figure 10 (a) to (c) are graphs of frequency characteristics in each operating state.

[0142] Reference Figure 11(a) Regarding the LC value of the resonant circuit portion composed of the capacitor portion (not shown) and the inductor portion 120, it maintains a constant value until (Th) before the core 102 of the stylus pen 100 contacts the touch surface, and decreases sharply immediately after the core 102 contacts the touch surface (Tc). In addition, in the interval (Tp) in which the pen pressure is applied to the stylus pen 100 after the stylus pen 100 contacts the touch surface, the LC value of the resonant circuit portion further decreases with the pen pressure. That is, in this interval Tp, as the pen pressure applied to the stylus pen 100 increases, the LC value of the resonant circuit portion can gradually decrease. Refer to Figure 11 In (a), the LC value of the resonant circuit part shows the order of hovering state > contact state > pen pressure state. In addition, the change in the LC value can be greater immediately after the core 102 contacts the touch surface than when the pen pressure gradually increases.

[0143] When the inductance value of the inductor unit 120 and the capacitance value of the capacitor unit (not shown) are changed, the resonant frequency and Q value of the resonant circuit unit can be changed. The resonant frequency of the resonant circuit unit increases as the inductance of the resonant circuit unit decreases, and the Q value decreases as the inductance decreases. Therefore, Figure 11 As shown in (b), the frequency characteristic of the resonant signal Vpen output from the resonant circuit part is that the greater the moving distance of the core 102, that is, the greater the pen pressure, the greater the resonant frequency (hovering state < contact state < pen pressure state >), and the smaller the Q value (hovering state > contact state > pen pressure state).

[0144] When the resonant frequency of the resonant circuit changes, the phase of the electromagnetic signal output from stylus 100 changes. A stylus sensing device interacting with stylus 100 can calculate the change in the LC value of the resonant circuit based on this phase change and, based on this, detect whether stylus 100 is in contact with the stylus sensing device and the pen pressure.

[0145] As mentioned above, according to Figures 1 to 9 The stylus pen 100 of the embodiment shown can change at least one or both of the inductance and capacitance of the resonant circuit portion so that the stylus pen sensing device can detect pen pressure. In addition, it has the advantage of being able to sense precise pen pressure.

[0146] On the other hand, according to Figures 1 to 9 The stylus pen of one embodiment shown may have assembly deviation during the assembly process. The assembly deviation may cause predetermined problems, as shown below. Figures 12 to 14 Provide detailed explanation.

[0147] Figure 12 (a) to (c) are used to illustrate the assembly Figures 1 to 10 The stylus pen 100 shown is a schematic diagram of a problem caused by assembly deviation of the core 102 .

[0148] Specifically, Figure 12 (a) shows the case where the core 102 is installed according to the pre-design without any assembly deviation. Figure 12 (b) and Figure 12 (c) shows a case where the core 102 cannot be installed in the pre-designed position due to assembly deviation generated during the assembly process.

[0149] exist Figure 12 In (a), the step portion 102T of the core 102 is located at the through hole 132h formed on the partition 132 of the first fixing member 130. The position of the step portion 102T is correctly assembled without deviation. Figure 12 In (b) and (c), due to assembly deviation, the step portion 102T is arranged at a position other than the through hole 132h of the partition plate 132. Specifically, Figure 12 In (b), the step portion 102T is disposed in the second cavity 133b of the first fixing member 130 disposed in the inductor portion 120 (see Figure 5 (b)), in Figure 12 In (c), the step portion 102T is arranged in the first cavity 133a of the first fixing member 130 arranged with the magnetic body 140 (see Figure 5 (a)).

[0150] For assembly deviation Figure 12 In the case of (b), even if the pressure is Figure 10 The contact state (b) immediately acts on the core 102, but since the distance between the inductor portion 120 and the magnetic body 140 is constant, the inductance value of the inductor portion 120 does not change immediately. Figure 12 In the case of (c), the magnetic body 140 is Figure 10 (a) the hover state and Figure 10 The inductance value of the inductor portion 120 can be changed by moving the core 102 between the contact states (b).

[0151] for Figure 12 Each of (a) to (c) shall refer to Figure 13 To illustrate that the resonant frequency changes with the pressure applied to the core 102 .

[0152] exist Figure 13 In the coordinate diagram, line ① without assembly deviation corresponds to Figure 12 (a), line ② with assembly deviation corresponds to Figure 12 (c), line ③ with assembly deviation corresponds to Figure 12 (b).

[0153] Reference Figure 13In the case of line ③, even if the pressure is increased immediately after the core 102 is in contact, the resonant frequency does not change. The stylus sensing device interacting with the stylus 100 cannot sense the pen pressure acting on the core 102. In the case of line ②, the resonant frequency also changes when the core 102 is in a hovering state, so the stylus sensing device will recognize that the core 102 is in a contact state, not a hovering state. As mentioned above, due to Figure 12 Due to the assembly deviations of (b) and (c), the stylus sensing device may have difficulty in accurately sensing the stylus 100 .

[0154] Figure 14 (a) to (c) are used to illustrate the assembly Figures 1 to 10 The stylus pen 100 shown is a schematic diagram of a problem caused by assembly deviation of the connection terminals 165 a and 165 b.

[0155] Specifically, Figure 14 (a) shows that the connection terminals 165a and 165b have no assembly deviation and are installed according to the pre-designed configuration. Figure 14 (b) and Figure 14 (c) shows a case where the connection terminals 165a and 165b are not installed at the pre-designed positions due to deviations occurring during the assembly process.

[0156] exist Figure 14 In (a), one end 165a1 of the connection terminal 165a contacts the ring terminal 161, and the other end 165a2 contacts the connection pad 211a of the substrate 210. This position of the connection terminal 165a is correctly assembled without deviation. Figure 14 In (b) and (c), the connection terminal 165a is arranged at a different position than the pre-designed position due to the assembly deviation of the connection terminal 165a. Figure 14 In (b), the connection terminal 165a is offset toward the substrate 210 by a predetermined distance, so that the one end portion 165a1 presses the ring terminal 161 with a considerable force. Figure 14 In (c), the connection terminal 165 a is offset toward the first fixing member 130 by a predetermined distance, so that the one end portion 165 a 1 is spaced apart from the ring terminal 161 by a predetermined distance.

[0157] In the event of assembly deviation Figure 14 In the case of (b), since the connection terminal 165a and the ring terminal 161 are assembled in a state of being pressed against each other, there is a Figure 10 (b) The problem of increased pressure in the contact state. Figure 14 In case (c), due to Figure 10The hovering state (a) starts with the ring terminal 161 being separated from the connection terminal 165a, so even if the core 102 is pressed, the stylus sensing device cannot sense the pressure. Figure 10 (b) Contact state.

[0158] In the following Figures 15 to 20 Even if a reference occurs Figures 12 to 14 The described assembly deviations will not significantly affect the performance, and the stylus according to other embodiments can save manufacturing costs by reducing internal components.

[0159] Figure 15 is a perspective view of a stylus pen 100 ′ according to another embodiment of the present invention. Figure 16 yes Figure 15 FIG. 1 is a cross-sectional view of portion A′ of the stylus pen 100 ′.

[0160] Figures 15 and 16 The stylus pen 100 'is shown with Figures 1 to 10 Compared to the stylus pen 100 shown in FIG. 1 , the first elastic member 180 ′ is made of a spring instead of a rubber material, and 2) Figures 1 to 10 The ring terminal 161, the connection terminals 165a, 165b, the jump capacitor 215 and the components for their electrical connection of the stylus pen 100 are omitted. Figures 1 to 10 The components of the stylus pen 100 shown are the same, so the detailed description is replaced by the above description, and the different components are described in detail below.

[0161] Reference Figures 15 and 16 The first elastic member 180' is composed of a spring. The first elastic member 180' starts to compress from a relatively low pressure (eg, about 10 gf), and can be configured to be quickly compressed even if the pressure is slightly increased due to its relatively weak compression strength.

[0162] Figure 17 (a) and (b) are used to illustrate Figure 16 A schematic diagram of the first elastic component 180' is shown. Figure 17 (a) shows the state when no force acts on the first elastic member 180'. Figure 17 (b) shows that the first elastic member 180' is arranged on Figure 16 Schematic diagram between the moving component 170 and the second fixed component 190 is shown.

[0163] like Figure 17As shown in (b), the first elastic member 180' can be sandwiched between the movable member 170 and the second fixed member 190 and configured in a partially compressed (or incompletely compressed) state. This first elastic member 180' will not be compressed unless a force greater than the compression force (or repulsive force) is applied by the movable member 170 and the second fixed member 190. Here, the force (or repulsive force) can be, for example, approximately 10 gf. Conversely, the second elastic member 190 is compressed when a force greater than the compression force is applied by the movable member 170.

[0164] The following [Equation 1] represents the force (or repulsive force) F of the partially compressed first elastic member 180 ′.

[0165]

Mathematical formula 1

[0166]

[0167] In the above [Math. 1], G represents the transverse elastic modulus of the spring, Na represents the effective number of turns of the spring, D represents the diameter of the spring, d represents the diameter of the wire, and x represents the length of the spring when it is compressed (in the negative direction).

[0168] On the other hand, the first elastic member 180' may be disposed in an uncompressed state between the movable member 170 and the second fixed member 190. Therefore, the stylus pen 100' according to another embodiment of the present invention is not limited to being disposed between the movable member 170 and the second fixed member 190 in a partially compressed state of the first elastic member 180'.

[0169] The first elastic member 180 ′ may be configured to react under a relatively greater weight than the elastic body 155 .

[0170] The following reference Figure 18 Explanation Figures 15 to 17 The operation of the stylus pen 100 ′ according to another embodiment is shown.

[0171] Figure 18 (a) to (c) are used to illustrate Figures 15 to 17 Schematic diagram of the operation of the stylus pen 100 ' shown. Specifically, Figure 18 (a) is a schematic diagram showing the hovering state (H) of the stylus pen 100 ′, Figure 18 (b) is a schematic diagram showing the contact state (C) of the stylus pen 100 ′, Figure 18 (c) is a schematic diagram showing the pen pressure (P) state of the stylus pen 100 ′.

[0172] Reference Figure 18(a) In the hovering state (H), since there is no external force acting on the core 102, there is no change in the internal components.

[0173] Reference Figure 18 (b), in the contact state (C), a predetermined pressure acts on one end of the core 102. The core 102 moves toward the inner side of the housing 101 under the applied pressure. As the core 102 moves, the cover 150 pushes the movable part 170 toward the first elastic part 180' side, and the movable part 170 is pushed to the second elastic part 185. In this case, the first elastic part 180' is compressed by an amount equivalent to the amount by which the movable part 170 is pushed. In addition, as the core 102 moves, the step portion 102T of the core 102T pushes the magnetic body 140 toward the first elastic part 180' side. As the magnetic body 140 is pushed, the distance between the inductor part 120 and the magnetic body 140 changes, and this change in distance changes the inductance value of the inductor part 120, and ultimately changes the resonant frequency.

[0174] Reference Figure 18 (c), in the pen pressure state P, a greater pressure is applied to one end of the core 102 than in the contact state (C). Under the greater pressure, the core 102 moves further toward the inner side of the housing 101, so that the magnetic body 140 is farther away from the inductor part 120. As the magnetic body 140 is pushed, the elastic body 155 arranged between the cover part 150 and the magnetic body 140 is compressed, and the first elastic part 180' is further compressed by the movement of the moving part 170, and the second elastic part 185 is also compressed. Here, since the magnetic body 140 is farther away from the inductor part 120, the inductance (L) value of the inductor part 120 gradually decreases. Since the inductance value of the inductor part 120 decreases, the resonant frequency changes.

[0175] Figure 19 (a) and (b) are diagrams showing examples of assembly deviation of the core 102. Figure 20 It shows Figure 19 Graphs showing changes in the resonant frequency of each of (a) and (b) as a function of the pressure applied to the core 102 .

[0176] Figure 19 (a) is a diagram showing that the step portion 102T of the core 102 is offset toward the magnetic body 140 side due to assembly deviation during the assembly process and is configured to be almost in contact with one side of the magnetic body 140. Figure 19 (b) is a diagram showing that the step portion 102T of the core 102 is displaced toward the inductor portion 120 due to assembly deviation.

[0177] exist Figure 20In the coordinate diagram, line ① is the case where there is no assembly deviation, and Figure 16 Correspondingly, line ② and Figure 19 (a) corresponds to the line ③. Figure 19 corresponds to (b).

[0178] Reference Figure 20 , for the stylus according to another embodiment of the present invention including the first elastic member 180 ′, even if some assembly deviation occurs to the core 102 , the performance change is less than that in the case where there is no assembly deviation. Figure 1 The stylus pen 100 shown has a more advantageous advantage in terms of mass production.

[0179] in addition, Figures 15 to 18 The stylus 100' is shown not in use. Figures 1 to 9 The components such as the skip capacitor 215, the ring terminal 161 and the connecting terminals 165a and 165b in the stylus pen 100 shown in the figure have the advantages of simplifying the internal structure and reducing the manufacturing cost. Figure 7 The groove 194 of the second fixing member 190 is shown Figure 6 The portion of the first slot 177 of the moving member 170 shown is not necessary.

[0180] On the other hand, although not shown separately, the stylus according to another embodiment of the present invention may be Figures 1 to 2 The first elastic member 180 in the stylus pen 100 is shown as Figure 16 and Figure 17 The first elastic member 180' is shown as a replacement.

[0181] The features, structures, and effects described in the above embodiments are included in one embodiment of the present invention and are not necessarily limited to one embodiment. Furthermore, the features, structures, and effects described in each embodiment can be implemented by combining or modifying other embodiments by a person skilled in the art. Therefore, it should be understood that the contents related to such combinations and modifications are included in the scope of the present invention.

[0182] In addition, the above description focuses on the embodiment, but this is merely illustrative and does not limit the present invention. Anyone skilled in the art will appreciate that various modifications and applications not illustrated above can be made without departing from the essential characteristics of the present embodiment. For example, the various components specifically shown in the embodiment may be implemented in various variations. Furthermore, differences related to these variations and applications should be interpreted as being included within the scope of the present invention as defined in the appended claims.

Claims

1. A stylus pen, comprising: Inductor Department; a first elastic member disposed apart from the inductor portion; a core body, which is arranged to pass through the inductor portion and is moved toward the first elastic member by an external force acting on one end thereof; and a magnetic body disposed between the inductor portion and the first elastic member, and interlocking with the core to change the distance between the magnetic body and the inductor portion; The first elastic member is compressed by the movement of the core. 2 . The stylus pen according to claim 1 , wherein the first elastic component is a spring. 3 . The stylus pen according to claim 2 , wherein the first elastic member is disposed in a state where at least a portion of the first elastic member is compressed.

4. The stylus pen according to claim 2, further comprising a second elastic member surrounding a portion of the first elastic member and being compressed by the movement of the core. The second elastic component is made of rubber material or a spring. The stylus pen according to claim 1 , wherein the first elastic component is made of rubber material.

6. The stylus pen according to claim 5, further comprising a second elastic member surrounding a portion of the first elastic member and being compressed by the movement of the core. The second elastic member is a rubber material that is relatively harder than the first elastic member.

7. The stylus according to any one of claims 1 to 6, further comprising: a housing in which the inductor portion, the first elastic member, the magnetic body, and the remaining portion of the core except for one end portion are disposed; a first fixing member, fixedly disposed inside the housing; a second fixing member disposed inside the housing at a predetermined distance from the first fixing member; and a moving component, moving in conjunction with the core body between the first fixing component and the second fixing component; The first elastic member is fixedly disposed inside the second fixing member and is pressed and compressed by the moving member moving toward the second fixing member.

8. The stylus pen according to claim 7, wherein the first fixing component comprises: A first cavity, used for disposing the magnetic body; a second cavity, configured to accommodate a portion of the inductor portion; and a partition, disposed between the first cavity and the second cavity and having a through hole through which the core passes; The diameter of the through hole of the separator is larger than the diameter of the through hole of the magnetic body.

9. The stylus pen according to claim 7, wherein the core has a step portion formed between the one end portion and the other end portion. Based on the step portion, the thickness of one end side of the core is thicker than the thickness of the other end side of the core. The diameters of the through-hole of the inductor portion and the through-hole of the first fixing member are larger than the diameter of the through-hole of the magnetic body. 10 . The stylus pen according to claim 9 , wherein the step portion pushes one side of the magnetic body by an external force acting on one end of the core body, thereby increasing the distance between the magnetic body and the inductor portion.

11. The stylus pen according to claim 7, further comprising an inner housing disposed inside the outer shell and surrounding the inductor portion, the first fixing member, the moving member, and the second fixing member. The first fixing member and the second fixing member include one or more first protrusions protruding outwardly. The inner housing has a first opening for arranging the first protruding portion of the first fixing member and the second fixing member.

12. The stylus pen according to claim 11 , wherein the first opening comprises a base groove extending along a length direction of the inner shell and a plurality of extension grooves connected to the base groove and extending in a direction perpendicular to the length direction of the base groove. The plurality of extension grooves are formed at positions corresponding to the first protrusions of the first fixing member and the second fixing member.

13. The stylus pen according to claim 7, wherein the first fixing member comprises at least one first groove formed on the outer surface. The moving member has one or more extensions arranged in the first groove and one or more first grooves and second grooves formed on the outside. The second fixing member includes a first extension portion and a second extension portion respectively disposed in the first groove and the second groove of the moving member. When the moving member moves, the extending portion of the moving member moves in the first groove of the first fixing member, and the first extending portion and the second extending portion of the second fixing member are disposed in the first groove and the second groove of the moving member.

14. The stylus pen according to claim 7, wherein the second elastic member has a groove. The moving part has a first groove, The second fixing member includes a first extending portion disposed in the groove of the second elastic member and the first groove of the movable member.

15. The stylus pen according to claim 7, comprising: a capacitor portion including a basic capacitor electrically connected to the inductor portion and a skip capacitor electrically short-circuited or open-circuited with the basic capacitor; a substrate on which the capacitor portion is mounted; a ring terminal, disposed on one side of the movable member between the movable member and the first fixed member, and moving in conjunction with the movable member; and A connecting terminal is arranged on the side surfaces of the movable component and the second fixed component, one end of which contacts the ring terminal and the other end is connected to the connecting pad of the substrate. When the moving member moves and the ring terminal is separated from one end portion of the connecting terminal, the base capacitor and the skip capacitor are electrically disconnected from each other. 16 . The stylus pen according to claim 15 , further comprising grooves for arranging the connection terminals on side surfaces of the movable component and the second fixed component.

17. The stylus pen according to any one of claims 1 to 6, wherein the distance between the magnetic body and the inductor portion changes due to the movement of the core. The inductance value of the inductor portion changes as the distance changes. As the inductance value changes, the resonant frequency of the signal transmitted to the outside changes.

18. The stylus pen according to claim 7, comprising: a cover portion, disposed between the other end portion of the core and the moving member; as well as The elastic body is arranged between the cover and the magnetic body.

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