Collapsible structure, stylus device, and electronic device

Abstract

Embodiments of the present application provide a collapsible structure, a stylus device, and an electronic device, aiming to solve the problem that a stylus easily damages a display panel. A first main bracket of the collapsible structure is arranged in a first accommodating cavity, the first main bracket is provided with a first slide channel, a part of a tip bracket is slidably arranged in the first slide channel, and the tip bracket is connected to a conductive tip; and a first elastic member is arranged in the first slide channel, and the first elastic member is connected to the tip bracket. In a normal writing scenario, under the elastic force of the first elastic member, the first elastic member drives a distal end of the conductive tip to extend out from a first telescopic hole on a housing of the stylus device by means of the tip bracket, so that the distal end of the conductive tip is in contact with a display panel during use. In an abnormal writing scenario, the pressure of the conductive tip on the display panel reaches a pre-pressure, the first elastic member continues to undergo elastic deformation, and the conductive tip starts to retract into the telescopic hole, thereby warning a user that the writing pressure is excessive, so as to prevent the display panel from being damaged.

Description

Collapsible structures, touch devices and electronic devices

[0001] This application claims priority to Chinese Patent Application No. 202510359068.7, filed on March 24, 2025, entitled "Collapse Structure, Touch Device and Electronic Device", and partial priority to Chinese Patent Application No. 202511247394.5, filed on September 2, 2025, also entitled "Collapse Structure, Touch Device and Electronic Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of terminal device technology, specifically to a collapsible structure, a touch device, and an electronic device. Background Technology

[0003] Electronic devices with display panels are generally equipped with styluses. Users can hold the stylus and make its tip contact the display panel to perform operations such as writing and drawing. However, during use, the force between the stylus and the display panel can easily be too great, which can damage the display panel; when the stylus is dropped, it is also easily damaged due to excessive impact. Summary of the Invention

[0004] This application provides a collapsible structure, a touch device, and an electronic device, which can prevent the touch device from damaging the display panel and also prevent the stylus from being damaged when dropped.

[0005] In a first aspect, embodiments of this application provide a collapsible structure for a touch device, comprising: a first main support, a pen tip support, and a first elastic member. The first main support has a first sliding channel; a portion of the pen tip support is slidably disposed within the first sliding channel, the pen tip support being used to connect to a conductive pen tip of the touch device; the first elastic member is disposed within the first sliding channel, the first elastic member being connected to the pen tip support, the first elastic member being used to cause a portion of the pen tip support to extend outside the first sliding channel, and when the pen tip support is subjected to pressure from the conductive pen tip reaching a pre-pressure, the pen tip support moves into the first sliding channel.

[0006] With the above configuration, the conductive pen tip is positioned within the telescopic hole of the touch device's housing. The first main support of the collapsible structure is located within the first accommodating cavity of the housing. The first main support has a first sliding channel, and a portion of the pen tip support slides within this channel, connecting to the conductive pen tip. A first elastic element is positioned within the first sliding channel and connected to the pen tip support. Under normal writing conditions, the first elastic element, under its own elastic force, drives the tip of the conductive pen tip through the pen tip support to extend from the first telescopic hole on the touch device's housing, facilitating contact between the tip and the display panel during use. Under abnormal writing conditions, if the pressure of the conductive pen tip on the display panel exceeds a pre-stress level, the first elastic element continues to deform elastically, causing the conductive pen tip to retract into the telescopic hole, thus alerting the user to excessive writing pressure and preventing damage to the display panel.

[0007] In addition, in drop scenarios, when a touch device falls and the conductive pen tip comes into contact with other objects, the impact force on the conductive pen tip can easily reach the upper limit pressure. The tip of the conductive pen tip retracts into the telescopic hole, which can prevent the conductive pen tip from being damaged due to excessive force, thereby improving the service life of the touch device.

[0008] In some embodiments that may include the above examples, when the pressure from the conductive pen tip on the pen tip holder does not reach the pre-pressure, the first elastic member keeps part of the pen tip holder extended outside the first sliding channel. That is, in a normal writing scenario, the first elastic member pushes against the pen tip holder outside the first sliding channel so that part of the pen tip holder remains in the position extended outside the first sliding channel, ensuring that the conductive pen tip will not retract into the telescopic hole during normal writing, thus ensuring writing comfort.

[0009] In some embodiments that may include the above-described embodiments, the collapsible structure further includes a top abutment. The first elastic element includes a first spring, the top abutment is connected to the first main support, one end of the first spring abuts against the pen tip support, and the other end of the first spring abuts against the top abutment. A first stop is provided at the end of the first main support, and a second stop is provided on the pen tip support. The first stop and the second stop abut against each other to prevent the pen tip support from moving out of the first sliding channel. Through the above-described configuration, the first stop and the second stop abut against each other to prevent the pen tip support from moving out of the first sliding channel, thereby preventing the pen tip support and the conductive pen tip from falling off the touch end of the housing.

[0010] Understandably, in normal writing scenarios, the first spring has a first compression due to providing pre-pressure to the pen tip holder. In abnormal writing scenarios, the pressure exerted by the conductive pen tip on the first spring through the pen tip holder is greater than the pre-pressure, at which point the first spring has a second compression, which is greater than the first compression.

[0011] In some embodiments that may include the above embodiments, a first engaging portion is provided on the top abutment, and a second engaging portion is provided on the side wall of the first sliding channel. At least part of the top abutment is disposed within the first sliding channel, and the first engaging portion engages with the second engaging portion to prevent the top abutment from moving along the length direction of the first sliding channel.

[0012] This configuration, which connects the first main bracket and the top abutment via a snap-fit ​​connection, allows for precise control of the position of the top abutment, thereby accurately controlling the preload of the first elastic element. After installation, there is no need to adjust the position of the top abutment, which facilitates the assembly and debugging of the touch device.

[0013] In some embodiments that may include the above embodiments, an adjusting external thread is provided on the top, and an adjusting internal thread is provided on the side wall of the first sliding channel, with the adjusting external thread engaging with the adjusting internal thread.

[0014] With this configuration, the position of the top abutment within the first sliding channel can be adjusted by twisting it, thereby adjusting the pre-pressure and upper limit pressure of the first elastic element on the pen tip holder. This can accommodate different writing forces and display panels with different safety pressures, improving the user experience and enhancing the versatility of touch devices.

[0015] In some embodiments that may include the above embodiments, the abutment top includes an abutment bracket and an abutment block. The abutment bracket is connected to the first main bracket and abuts against the first spring. The end of the abutment bracket away from the first spring is provided with a mounting groove. At least part of the abutment block is disposed in the mounting groove. The abutment block is used to abut against the pressure detection device of the touch device.

[0016] This design, with the pressure block and pressure support being separate structures, allows the hardness of the pressure block to be less than that of the pressure support, meaning the pressure block has a certain degree of elasticity. This protects the pressure detection device from damage caused by the pressure block, thus extending the lifespan of the touch device. For example, the material of the pressure block can include materials with a certain degree of elasticity such as polyetheretherketone (PEEK) and silicone.

[0017] In some embodiments that may include the above-described embodiments, both the pen tip holder and the first main holder are conductive holders. The pen tip holder and the first main holder are used to electrically connect the conductive pen tip of the contact control device to the control board. The pen tip holder and the first main holder are configured to disconnect the electrical connection between the conductive pen tip and the control board when the pen tip holder moves into the first sliding channel. That is, the control board transmits position signals to the conductive pen tip sequentially through the first main holder and the pen tip holder. The pen tip holder and the first main holder are configured to disconnect the electrical connection between the conductive pen tip and the control board when the pen tip holder moves into the first sliding channel. Specifically, when the conductive pen tip is subjected to pressure from the display panel to reach a pre-pressure level, the conductive pen tip moves into the telescopic hole. At this time, the pen tip holder moves into the first sliding channel, and the electrical connection between the pen tip holder and the first main holder is disconnected.

[0018] With this configuration, when the pressure exerted on the conductive pen tip by the display panel is greater than or equal to the pre-pressure, the pen tip support and the first main support disconnect the electrical connection between the conductive pen tip and the control board. At this time, the display panel will no longer display lines because it cannot receive the position signal, which can further prompt the user that the writing pressure is too high, thereby further protecting the display panel and preventing damage to it.

[0019] In some embodiments that may include the above-described embodiments, the first main support, the pen tip support, the first stop, and the second stop are all covered with an insulating layer. A first window is provided on the insulating layer of the first stop, and a second window is provided on the insulating layer of the second stop. The first stop exposed by the first window abuts against the second stop exposed by the second window. Alternatively, the pen tip support and the second stop are both covered with an insulating layer, and a second window is provided on the insulating layer of the second stop. The second stop exposed by the second window abuts against the first stop. Or, both the first main support and the first stop are provided with an insulating layer, and a first window is provided on the insulating layer of the first stop. The first stop exposed by the first window abuts against the second stop. This configuration results in a simple structure that is easy to manufacture. For example, the material of the insulating layer may include insulating materials such as resin or rubber.

[0020] In some embodiments that may include the above-described embodiments, there are multiple second stops, all located within the first sliding channel. These multiple second stops are spaced apart along the length of the first sliding channel and contact the sidewall of the first sliding channel. This arrangement, with multiple second stops in contact with the sidewall of the first sliding channel, prevents the pen tip holder from wobbling within the first sliding channel, thereby avoiding wobbling of the conductive pen tip during use and ensuring writing accuracy.

[0021] In some embodiments that may include the above examples, the pen tip holder is configured to be detachably connected to the conductive pen tip. This configuration allows the conductive pen tip to be detached from the pen tip holder for replacement when it wears out or becomes damaged after prolonged use, thereby extending the lifespan of the touch device.

[0022] In some embodiments that may include the above examples, the pen tip holder is provided with a mounting hole, and a portion of the conductive pen tip passes through the mounting hole. This arrangement allows for the removal of the conductive pen tip by pulling it out of the mounting hole, and the installation of the conductive pen tip by inserting it into the mounting hole, thus facilitating the removal and installation of the conductive pen tip.

[0023] For example, a conductive pen tip may include a retaining sleeve and a conductive portion. The retaining sleeve is fitted over the conductive portion, with a portion of the conductive portion extending from one end of the retaining sleeve to form the tip of the conductive pen tip for contacting the display panel. Another portion of the conductive portion extends from the other end of the retaining sleeve to contact the sidewall of the mounting hole, thereby achieving an electrical connection between the conductive pen tip and the pen tip holder. The conductive portion may have a certain degree of flexibility to prevent scratching the display panel upon contact. For example, the material of the conductive portion may include silicone and conductive particles, with the conductive particles doped into the silicone to provide conductivity while maintaining flexibility. The conductive particles may include graphite particles, metal particles, etc. The retaining sleeve may be made of insulating materials such as resin or rubber, and it has a certain degree of rigidity to maintain a certain rigidity of the conductive pen tip.

[0024] In some embodiments that may include the above examples, the pen tip holder is provided with a mounting threaded hole for engaging with the external mounting thread on the conductive pen tip. With this configuration, the pen tip holder and the conductive pen tip are connected by a threaded connection, resulting in a more secure connection between the conductive pen tip and the pen tip holder.

[0025] For example, the conductive pen tip may include a flexible pen tip and a conductive post. The flexible pen tip is disposed at one end of the conductive post and serves as the tip of the conductive pen tip to contact the display panel. The flexible pen tip has a certain degree of flexibility to avoid scratching the display panel upon contact. For example, the material of the flexible pen tip may include silicone and conductive particles, with the conductive particles doped into the silicone to make the flexible pen tip conductive while maintaining a certain degree of flexibility. The conductive particles may include graphite particles, metal particles, etc. The material of the conductive post may include metal, graphite, etc., and an external thread is disposed on the side wall of the conductive post.

[0026] In some embodiments that may include the above examples, the pen tip holder may also be fixedly connected to the conductive pen tip. For example, the pen tip holder can be connected to the conductive pen tip by welding; of course, the pen tip holder can also be formed into an integral structure with the conductive pen tip by casting, forging, or other methods. This configuration can improve the connection force between the conductive pen tip and the pen tip holder.

[0027] In some embodiments that may include the above-described embodiments, the pen tip holder includes a first part and a second part. The second part is slidably disposed within a first sliding channel, while the first part is located outside the sliding channel. The first part is used to connect to the conductive pen tip, and the first part abuts against the second part. With this configuration, when the centerline of the conductive pen tip is inclined relative to the centerline of the first sliding channel, after the pressure on the pen tip holder reaches a pre-pressure, the first and second parts slide relative to each other. This reduces the force between the second part and the first main support along a direction perpendicular to the centerline of the first sliding channel, preventing excessive friction between the second part and the first main support from causing jamming, and ensuring that the second part can smoothly retract into the first sliding channel.

[0028] In some embodiments that may include the above-described embodiments, a first abutment surface is provided on the first part. The first abutment surface is a spherical surface, and the center of the sphere is located on the side of the first abutment surface away from the second part. The second part abuts against the first abutment surface. The first abutment surface is a spherical surface that protrudes towards the second part. When the second part contacts the spherical surface, after the pressure on the conductive pen tip exceeds the pre-pressure, the second part slides on the first spherical surface, which can prevent the first part and the second part from getting stuck and ensure smooth movement.

[0029] Secondly, embodiments of this application also provide a touch device, including: a housing, a conductive pen tip, and a collapsible structure. The housing has a first accommodating cavity, and the touch end of the housing is provided with a telescopic hole communicating with the first accommodating cavity; the conductive pen tip is disposed in the telescopic hole.

[0030] The collapsible structure includes: a first main support, a pen tip support, and a first elastic element. The first main support has a first sliding channel and is disposed within a first accommodating cavity. A portion of the pen tip support is slidably disposed within the first sliding channel, and the conductive pen tip is connected to the pen tip support. The first elastic element is disposed within the first sliding channel and is connected to the pen tip support. The first elastic element is used to allow a portion of the conductive pen tip to extend outside the telescopic hole, and when the pressure on the conductive pen tip reaches a pre-pressure, the conductive pen tip moves into the telescopic hole.

[0031] With the above configuration, the outer casing has a first accommodating cavity, and a telescopic hole communicating with the first accommodating cavity is provided on the outer casing. The conductive pen tip is disposed in the telescopic hole, and the first main support of the collapsible structure is disposed within the first accommodating cavity. The first main support has a first sliding channel, and a portion of the pen tip support slides within the first sliding channel, connecting the pen tip support to the conductive pen tip. A first elastic element is disposed within the first sliding channel and is connected to the pen tip support. Under normal writing conditions, the first elastic element, under its own elastic force, drives the tip of the conductive pen tip to extend out of the first telescopic hole through the pen tip support, so that the tip of the conductive pen tip can contact the display panel during use. Under abnormal writing conditions, when the pressure of the conductive pen tip on the display panel exceeds the pre-pressure, the first elastic element continues to deform elastically, and the conductive pen tip begins to retract into the telescopic hole, thereby alerting the user that the writing pressure is too high to prevent damage to the display panel.

[0032] In addition, in drop scenarios, when a touch device falls and the conductive pen tip comes into contact with other objects, the impact force on the conductive pen tip can easily reach the upper limit pressure. The tip of the conductive pen tip retracts into the telescopic hole, which can prevent the conductive pen tip from being damaged due to excessive force, thereby improving the service life of the touch device.

[0033] In some embodiments that may include the above examples, when the pressure from the conductive pen tip on the pen tip holder does not reach the pre-pressure, the first elastic member keeps part of the pen tip holder extended outside the first sliding channel. That is, in a normal writing scenario, the first elastic member pushes against the pen tip holder outside the first sliding channel so that part of the pen tip holder remains in the position extended outside the first sliding channel, ensuring that the conductive pen tip will not retract into the telescopic hole during normal writing, thus ensuring writing comfort.

[0034] In some embodiments that may include the above-described embodiments, the first elastic element is configured to allow the tip of the conductive pen tip to retract into the telescopic hole when the conductive pen tip is subjected to a pressure greater than or equal to the upper limit pressure. This configuration ensures that when the conductive pen tip is subjected to pressure from the display panel greater than or equal to the upper limit pressure, the tip retracts into the telescopic hole, preventing the conductive pen tip from continuing to apply pressure to the display panel, thereby avoiding excessive pressure on the display panel and further preventing damage to the display panel.

[0035] In some embodiments that may include the above-described embodiments, the collapsible structure further includes a top abutment. The first elastic element includes a first spring, the top abutment is connected to the first main support, one end of the first spring abuts against the pen tip support, and the other end of the first spring abuts against the top abutment. A first stop is provided at the end of the first main support, and a second stop is provided on the pen tip support. The first stop and the second stop abut against each other to prevent the pen tip support from moving out of the first sliding channel. Through the above-described configuration, the first stop and the second stop abut against each other to prevent the pen tip support from moving out of the first sliding channel, thereby preventing the pen tip support and the conductive pen tip from falling off the touch end of the housing.

[0036] In some embodiments that may include the above embodiments, a first engaging portion is provided on the top abutment, and a second engaging portion is provided on the side wall of the first sliding channel. At least part of the top abutment is disposed within the first sliding channel, and the first engaging portion engages with the second engaging portion to prevent the top abutment from moving along the length direction of the first sliding channel.

[0037] This configuration, which connects the first main bracket and the top abutment via a snap-fit ​​connection, allows for precise control of the position of the top abutment, thereby accurately controlling the preload of the first elastic element. After installation, there is no need to adjust the position of the top abutment, which facilitates the assembly and debugging of the touch device.

[0038] In some embodiments that may include the above embodiments, an adjusting external thread is provided on the top, and an adjusting internal thread is provided on the side wall of the first sliding channel, with the adjusting external thread engaging with the adjusting internal thread.

[0039] With this configuration, the position of the top abutment within the first sliding channel can be adjusted by twisting it, thereby adjusting the pre-pressure and upper limit pressure of the first elastic element on the pen tip holder. This can accommodate different writing forces and display panels with different safety pressures, improving the user experience and enhancing the versatility of touch devices.

[0040] In some embodiments that may include the above embodiments, the touch device further includes a pressure detection device disposed on the side of the first main support away from the touch end, and the top abutting part abutting against the pressure detection device, the pressure detection device being used to detect pressure from the top abutting part.

[0041] With this setup, the pressure detection device is used to detect the pressure from the top, that is, the pressure detection device is used to detect the pressure of the conductive pen tip on the display panel; the control board generates a handwriting signal based on the pressure detected by the pressure detection device, and sends the handwriting signal to the device body through a short-range communication device. The device body controls the display panel to form lines of a certain thickness based on the handwriting signal, thereby improving the user experience.

[0042] In some embodiments that may include the above embodiments, the abutment includes an abutment bracket and an abutment block. The abutment bracket is connected to the first main bracket and abuts against the first spring. The end of the abutment bracket away from the first spring is provided with an installation groove. At least part of the abutment block is disposed in the installation groove, and the abutment block abuts against the pressure detection device.

[0043] This design, with the pressure block and pressure support being separate structures, allows the hardness of the pressure block to be less than that of the pressure support, meaning the pressure block has a certain degree of elasticity. This protects the pressure detection device from damage caused by the pressure block, thus extending the lifespan of the touch device. For example, the material of the pressure block can include materials with a certain degree of elasticity such as polyetheretherketone (PEEK) and silicone.

[0044] In some embodiments that may include the above-described embodiments, the touch device further includes a second elastic member disposed within the first accommodating cavity, the second elastic member abutting against the first main support. With this configuration, the elastic force of the second elastic member abutting against the first main support is transmitted sequentially through the first main support, the pen tip support, and the first elastic member to the abutment top, causing the abutment top to press against the pressure detection device to prevent the first main support from moving within the first accommodating cavity.

[0045] In some embodiments that may include the above-described embodiments, the second elastic element includes a second spring, which is sleeved on the pen tip holder. This configuration simplifies the structure of the second elastic element, and the second spring sleeved on the pen tip holder prevents it from tilting relative to the centerline of the first sliding channel, thereby ensuring uniform force distribution on the first main support.

[0046] In some embodiments that may include the above embodiments, the touch device further includes a control board, and the pen tip holder and the first main holder are both conductive holders. The conductive pen tip is electrically connected to the control board through the pen tip holder and the first main holder. The pen tip holder and the first main holder are configured to disconnect the electrical connection between the conductive pen tip and the control board when the pen tip holder moves into the first sliding channel.

[0047] In other words, the control board transmits position signals to the conductive pen tip sequentially through the first main bracket and the pen tip bracket. The pen tip bracket and the first main bracket are configured to disconnect the electrical connection between the conductive pen tip and the control board when the pen tip bracket moves into the first sliding channel. That is, when the conductive pen tip is subjected to pressure from the display panel to reach a pre-pressure level, the conductive pen tip moves into the telescopic hole, at which point the pen tip bracket moves into the first sliding channel, and the electrical connection between the pen tip bracket and the first main bracket is disconnected.

[0048] With this configuration, when the pressure exerted on the conductive pen tip by the display panel is greater than or equal to the pre-pressure, the pen tip support and the first main support disconnect the electrical connection between the conductive pen tip and the control board. At this time, the display panel will no longer display lines because it cannot receive the position signal, which can further prompt the user that the writing pressure is too high, thereby further protecting the display panel and preventing damage to it.

[0049] In some embodiments that may include the above-described embodiments, the first main support, the pen tip support, the first stop, and the second stop are all covered with an insulating layer. A first window is provided on the insulating layer of the first stop, and a second window is provided on the insulating layer of the second stop. The first stop exposed by the first window abuts against the second stop exposed by the second window. Alternatively, the pen tip support and the second stop are both covered with an insulating layer, and a second window is provided on the insulating layer of the second stop. The second stop exposed by the second window abuts against the first stop. Or, both the first main support and the first stop are provided with an insulating layer, and a first window is provided on the insulating layer of the first stop. The first stop exposed by the first window abuts against the second stop. This configuration results in a simple structure that is easy to manufacture. For example, the material of the insulating layer may include insulating materials such as resin or rubber.

[0050] In some embodiments that may include the above-described embodiments, when the pen tip holder moves into the first sliding channel and the electrical connection between the pen tip holder and the first main holder is disconnected, the control board can send a prompt signal to the device body via a short-range communication device. After receiving the prompt signal, the device body generates prompt information to further remind the user that the writing pressure is too high. For example, the prompt information may include images or text information displayed on the display panel, sound information played by the speaker, vibration information, etc., and this application embodiment does not limit this.

[0051] In some embodiments that may include the above-described embodiments, when the pen tip holder moves into the first sliding channel and the electrical connection between the pen tip holder and the first main holder is disconnected, the touch device may also generate a prompt message to further remind the user that the writing pressure is too high. For example, the prompt message may include light information, sound information, vibration information, etc., and this application embodiment does not limit this.

[0052] In some embodiments that may include the above examples, the pen tip holder is configured to be detachably connected to the conductive pen tip. This configuration allows the conductive pen tip to be detached from the pen tip holder for replacement when it wears out or becomes damaged after prolonged use, thereby extending the lifespan of the touch device.

[0053] In some embodiments that may include the above examples, the pen tip holder is provided with a mounting hole, and a portion of the conductive pen tip passes through the mounting hole. This arrangement allows for the removal of the conductive pen tip by pulling it out of the mounting hole, and the installation of the conductive pen tip by inserting it into the mounting hole, thus facilitating the removal and installation of the conductive pen tip.

[0054] For example, a conductive pen tip may include a retaining sleeve and a conductive portion. The retaining sleeve is fitted over the conductive portion, with a portion of the conductive portion extending from one end of the retaining sleeve to form the tip of the conductive pen tip for contacting the display panel. Another portion of the conductive portion extends from the other end of the retaining sleeve to contact the sidewall of the mounting hole, thereby achieving an electrical connection between the conductive pen tip and the pen tip holder. The conductive portion may have a certain degree of flexibility to prevent scratching the display panel upon contact. For example, the material of the conductive portion may include silicone and conductive particles, with the conductive particles doped into the silicone to provide conductivity while maintaining flexibility. The conductive particles may include graphite particles, metal particles, etc. The retaining sleeve may be made of insulating materials such as resin or rubber, and it has a certain degree of rigidity to maintain a certain rigidity of the conductive pen tip.

[0055] In some embodiments that may include the above examples, the pen tip holder is provided with a mounting threaded hole for engaging with the external mounting thread on the conductive pen tip. With this configuration, the pen tip holder and the conductive pen tip are connected by a threaded connection, resulting in a more secure connection between the conductive pen tip and the pen tip holder.

[0056] For example, the conductive pen tip may include a flexible pen tip and a conductive post. The flexible pen tip is disposed at one end of the conductive post and serves as the tip of the conductive pen tip to contact the display panel. The flexible pen tip has a certain degree of flexibility to avoid scratching the display panel upon contact. For example, the material of the flexible pen tip may include silicone and conductive particles, with the conductive particles doped into the silicone to make the flexible pen tip conductive while maintaining a certain degree of flexibility. The conductive particles may include graphite particles, metal particles, etc. The material of the conductive post may include metal, graphite, etc., and an external thread is disposed on the side wall of the conductive post.

[0057] In some embodiments that may include the above examples, the pen tip holder may also be fixedly connected to the conductive pen tip. For example, the pen tip holder can be connected to the conductive pen tip by welding; of course, the pen tip holder can also be formed into an integral structure with the conductive pen tip by casting, forging, or other methods. This configuration can improve the connection force between the conductive pen tip and the pen tip holder.

[0058] In some embodiments that may include the above-described embodiments, the touch device further includes a second main support, which is disposed within the first receiving cavity. The second main support has a second sliding channel, and a collapsible structure is disposed within the second sliding channel. This configuration allows the second main support to restrict the position of the first main support within the first receiving cavity, thereby preventing the first main support from wobbling within the first receiving cavity and thus preventing the pen tip support and conductive pen tip from wobbling.

[0059] In some embodiments that may include the above embodiments, the second sliding channel includes a first sub-channel, a second sub-channel, and a third sub-channel. The first sub-channel is disposed near the telescopic hole, and the second sub-channel is located between the first and third sub-channels. One end of the second sub-channel is connected to one end of the first sub-channel, and the other end of the second sub-channel is connected to one end of the third sub-channel. The other end of the first sub-channel faces the telescopic hole. The first main support slides within the third sub-channel, and a portion of the pen tip support extends from the first sliding channel and slides within the second sub-channel. The conductive pen tip passes through the first sub-channel and connects to the pen tip support within the second channel.

[0060] With this setup, the conductive pen tip can be further limited through the first sub-channel to prevent it from shaking; the pen tip holder can be limited through the second sub-channel to prevent it from shaking.

[0061] In some embodiments that may include the above embodiments, the touch device further includes a detection electrode disposed at one end of the second main support near the touch end. The detection electrode is configured to have an angle detection signal, which is used to be acquired by the display panel of the electronic device so that the electronic device can generate an angle between the center line of the conductive pen tip and the display panel.

[0062] With this setup, when writing, the touch terminal is brought close to the display panel, and the display panel receives the angle detection signal. The device body generates the angle between the center line of the conductive pen tip and the display panel based on the angle detection signal, and can control the display panel to form the pen tip according to the size of the angle.

[0063] In some embodiments that may include the above embodiments, the detection electrode includes a fixed part and an extension part. The fixed part is connected to the second main bracket, and the extension part extends toward the touch end. The detection electrode is provided with a first through hole that penetrates the fixed part and the extension part, and a portion of the conductive pen tip passes through the first through hole.

[0064] This configuration reduces the distance between the extension and the touch terminal. During use, it shortens the distance between the detection electrode and the display panel. With a fixed voltage (coding voltage) between the detection electrode and the touch layer of the display panel, it reduces the bit error rate of the transmitted detection signal, increases the signal strength (amplitude) of the detection signal, and improves the accuracy of the angle between the center line of the conductive pen tip and the display panel. Furthermore, while maintaining a low bit error rate and a high signal strength, it reduces the voltage (coding voltage) between the detection electrode and the touch layer of the display panel, thereby reducing the power consumption of the touch device.

[0065] In other aspects, because the distance between the detection electrode and the display panel is small, the detection signal strength is greater near the tip of the conductive pen. The detection electrode removes the influence of external signals on the conductive pen tip, thereby reducing the interference of external signals on the position signal transmitted between the conductive pen tip and the display panel, which can improve the accuracy of the obtained conductive pen tip position.

[0066] In some embodiments that may include the above embodiments, the fixing part and the second main bracket are connected by a fixing groove and a fixing block, with the fixing block located in the fixing groove.

[0067] In some embodiments that may include the above-described embodiments, the touch device further includes a second circuit and a control board. The second circuit is disposed on a second main support, one end of the second circuit is connected to a detection electrode, and the other end of the second circuit is electrically connected to the control board. The second circuit being disposed on the second main support improves the structural compactness of the touch device.

[0068] In some embodiments that may include the above-described embodiments, the second circuit includes a first connecting ring and a first wire. The first connecting ring is sleeved on the detection electrode, and the first wire is disposed on the second main support. One end of the first wire is connected to the first connecting ring, and the other end of the first wire is electrically connected to the control board. Sleeving the first connecting ring on the detection electrode increases the contact area between the first connecting ring and the detection electrode, thereby preventing poor contact between them.

[0069] In some embodiments that may include the above embodiments, the pen tip holder includes a first part and a second part, the second part is slidably disposed in a first sliding channel, the first part is located outside the first sliding channel, the first part is connected to the conductive pen tip, and the first part abuts against the second part.

[0070] In some embodiments that may include the above-described embodiments, a first abutment surface is provided on the first part. The first abutment surface is spherical, and the center of the sphere is located on the side of the first abutment surface away from the second part. The second part abuts against the first abutment surface. With this configuration, when the center line of the conductive pen tip is inclined relative to the center line of the first sliding channel, after the pressure on the pen tip support reaches the pre-pressure, the first part and the second part slide relative to each other. This reduces the force between the second part and the first main support in the direction perpendicular to the center line of the first sliding channel, preventing excessive friction between the second part and the first main support from causing jamming, and ensuring that the second part can smoothly collapse into the first sliding channel.

[0071] In some embodiments that may include the above-described embodiments, a first abutment surface is provided on the first part. The first abutment surface is a spherical surface, and the center of the sphere is located on the side of the first abutment surface away from the second part. The second part abuts against the first abutment surface. The first abutment surface is a spherical surface that protrudes towards the second part. When the second part contacts the spherical surface, after the pressure on the conductive pen tip exceeds the pre-pressure, the second part slides on the first spherical surface, which can prevent the first part and the second part from getting stuck and ensure smooth movement.

[0072] In some embodiments that may include the above-described embodiments, the touch device further includes a second elastic member connected to the first portion and the second main support. The second elastic member is used to keep the first portion in contact with the second portion. The second elastic member applies a spring force to the first portion toward the second portion to keep the first portion in contact with the second portion, thereby preventing the first portion and the conductive pen tip from wobbling relative to the housing.

[0073] In some embodiments that may include the above-described embodiments, the second elastic element includes a second spring, which is sleeved on the first part, and the material of the first part includes a conductive material; the touch device also includes a first circuit and a control board, the first circuit being disposed on the second main support, and the second spring being electrically connected to the control board through the first circuit. The conductive pen tip is electrically connected to the control board through the first part, the second spring, and the first circuit, which can simplify the structure of the touch device and facilitate the miniaturization of the touch device.

[0074] In some embodiments that may include the above-described examples, the first circuit includes a second connecting ring and a second wire. The second connecting ring is disposed within a second sliding channel and connected to a second main support. One end of a second spring abuts against the second connecting ring, and the other end of the second spring is connected to a first portion. The second wire is disposed on the second main support, with one end connected to the second connecting ring and the other end connected to a control board. The second spring contacts the second connecting ring to achieve electrical connection between the second spring and the first circuit, which can increase the contact area between the second spring and the first circuit and avoid poor contact.

[0075] Thirdly, embodiments of this application also provide an electronic device, including: a display panel and the touch device as described above, the display panel including a touch structure configured to detect the position of the conductive pen tip of the touch device.

[0076] The electronic devices in this application include the touch devices in any of the above embodiments, and therefore can achieve the same technical effects and solve the same technical problems, which will not be repeated here.

[0077] In some embodiments that may include the above embodiments, the touch device further includes a detection electrode disposed in the housing, the detection electrode being configured to have an angle detection signal, and the touch structure being configured to obtain the angle between the center line of the conductive pen tip and the display panel based on the angle detection signal.

[0078] With this setup, when writing, the touch terminal is brought close to the display panel, and the display panel receives the angle detection signal. The device body generates the angle between the center line of the conductive pen tip and the display panel based on the angle detection signal, and can control the display panel to form the pen tip according to the size of the angle.

[0079] Fourthly, embodiments of this application also provide a method for determining the coding voltage, applied to the device body, including:

[0080] The first control information is determined based on the target device parameters of the device itself; the first control information is sent to the touch device to instruct the touch device to determine the coding voltage based on the first control information.

[0081] The coding voltage determination method provided in this application embodiment involves the device body determining first control information based on target parameters, and then sending the first control information to the touch device. The touch device controls the magnitude of the coding voltage based on the received first control information, which can ensure that the coding voltage is not too large or too small.

[0082] In some embodiments that may include the above embodiments, generating first control information based on target device parameters of the device body includes: determining a target voltage corresponding to the target device parameters based on a correspondence, wherein the correspondence is used to indicate the relationship between device parameters and voltage; and determining the target voltage as the first control information. The device body directly sends the target voltage to the touch device, and the touch device adjusts the coding voltage to the target voltage. This setting simplifies the processing of the first control information of the touch device and facilitates improved response speed.

[0083] In some embodiments that may include the above embodiments, generating first control information based on target device parameters of the device body includes: determining the target device parameters as the first control information. The device body sends the target device parameters to the touch device, and the touch device determines the target voltage corresponding to the target device parameters based on the correspondence, and determines the target voltage as the coding voltage. This setting simplifies the processing of the first control information by the device body.

[0084] In some embodiments that may include the above embodiments, the target device parameters include at least one of the following: the position of the touch layer of the device body in the display panel of the device body; the hovering characteristics of the touch device; and the writing program running on the device body.

[0085] Understandably, a display panel typically comprises a stacked display layer, a touch layer, and a cover plate. In some display panels, the touch layer is positioned between the display layer and the cover plate, while in others, it is embedded within the display layer. The position of the touch layer within the display panel of the device itself can be either between the display layer and the cover plate or embedded within the display layer. The different positions of the touch layer affect the distance between it and the cover plate. When the touch layer is between the display panel and the cover plate, the distance between the touch layer and the touch device is smaller, allowing for a lower coding voltage (e.g., 40V). When the touch layer is embedded within the display layer, the distance between the touch layer and the cover plate is larger, requiring a higher coding voltage (e.g., 60V) for use when the touch device is in operation.

[0086] The hovering characteristic of a touch device indicates whether the device itself and the touch device support normal writing and interaction even when the stylus tip is not in contact with the display panel (the touch device hovers above the display panel). When hovering is supported, a higher coding voltage (e.g., 60V) is required to ensure a strong signal between the touch device and the touch layer, thus guaranteeing a low bit error rate. When hovering is not supported, a lower coding voltage (e.g., 40V) can be used to reduce the power consumption of the touch device.

[0087] The writing program running on the device itself can be a pre-installed program designed to work with touch devices. The touch devices can then perform writing and drawing operations based on this program. The device can store different coding voltages for different writing programs. The correspondence between the writing program and the coding voltage can be customized by the user or pre-set by the device itself. For example, some writing programs use a higher coding voltage (e.g., 60V), while others use a lower coding voltage (e.g., 40V).

[0088] In some embodiments that may include the above-described embodiments, after sending the first control information to the touch device, the method further includes: receiving a target signal input by the touch device; determining a bit error rate based on the target signal; adjusting the first control information based on the bit error rate to obtain second control information; and sending the second control information to the touch device to instruct the touch device to adjust the coding voltage based on the second control information. During the writing process, the device body can continuously monitor the bit error rate between the touch device and the display panel. When the bit error rate is high, the second control information causes the touch device to increase the coding voltage (e.g., from 40V to 60V) to improve signal transmission accuracy and reduce the bit error rate, thus achieving dynamic adjustment of the coding voltage.

[0089] Fifthly, embodiments of this application also provide a method for determining coding voltage, applied to a device body and a touch device, comprising: the device body determining first control information based on target device parameters of the device body; the device body sending the first control information to the touch device to instruct the touch device to determine the coding voltage based on the first control information.

[0090] In some embodiments that may include the above embodiments, the device body generating first control information based on the target device parameters of the device body includes: the device body determining the target voltage corresponding to the target device parameters based on the correspondence relationship, wherein the correspondence relationship is used to indicate the relationship between the device parameters and the voltage; and the device body determining the target voltage as the first control information.

[0091] In some embodiments that may include the above embodiments, the device body generating first control information based on the target device parameters of the device body includes: the device body determining the target device parameters as the first control information.

[0092] In some embodiments that may include the above embodiments, the target device parameters include at least one of the following: the position of the touch layer of the device body in the display panel of the device body; the hovering characteristics of the touch device; and the writing program running on the device body.

[0093] In some embodiments that may include the above embodiments, after the device body sends the first control information to the touch device, the method further includes: the device body receiving a target signal input by the touch device; the device body determining a bit error rate based on the target signal; the device body adjusting the first control information based on the bit error rate to obtain second control information; and the device body sending the second control information to the touch device to instruct the touch device to adjust the coding voltage based on the second control information.

[0094] In some embodiments that may include the above embodiments, after the device body sends the first control information to the touch device, the method further includes: the device body adjusting the first control information according to a preset rule to obtain third control information; and the device body sending the third control information to the touch device to instruct the touch device to adjust its main frequency based on the third control information. This configuration allows for dynamic adjustment of the touch device's main frequency.

[0095] In some embodiments that may include the above examples, the preset rules include at least one of the following: a writing program running on the device body, each writing program corresponding to a main frequency; a response delay between the device body and the touch device, each response delay corresponding to a main frequency; when the response delay between the device body and the touch device is greater than a set value, the main frequency is increased; when the response delay between the device body and the touch device is less than the set value, the main frequency is decreased. This setting, while ensuring a small response delay between the device body and the touch device, allows for a reduction in the main frequency, thereby reducing the power consumption of the touch device.

[0096] Sixthly, embodiments of this application also provide a method for determining coding voltage, applied to a touch device, comprising: receiving first control information sent by the device body, wherein the first control information is information determined by the device body based on target device parameters of the device body; and determining the coding voltage based on the first control information.

[0097] The coding voltage determination method provided in this application embodiment involves a touch device receiving first control information, which is determined by the device body based on target parameters. The device body then sends the first control information to the touch device, and the touch device controls the coding voltage based on the received first control information, thereby ensuring that the coding voltage is not too high or too low.

[0098] In some embodiments that may include the above embodiments, determining the coding voltage based on the first control information includes: determining a target voltage included in the first control information; and determining the target voltage as the coding voltage. The device body directly sends the target voltage to the touch device, and the touch device adjusts the coding voltage to the target voltage. This configuration simplifies the processing of the first control information of the touch device and facilitates improved response speed.

[0099] In some embodiments that may include the above embodiments, determining the coding voltage based on the first control information includes: parsing the target device parameters included in the first control information; and determining the coding voltage based on the target device parameters. The touch device parses the first control information and obtains the target device parameters. The touch device determines the target voltage corresponding to the target device parameters based on the correspondence, and determines the target voltage as the coding voltage. This setting simplifies the processing of the first control information by the device itself.

[0100] In some embodiments that may include the above embodiments, after determining the coding voltage based on the first control information, the method further includes: receiving second control information sent by the device body, wherein the second control information is information obtained by the device body adjusting the first control information based on the bit error rate, and the bit error rate is determined by the device body based on receiving the target signal input by the touch device; adjusting the coding voltage based on the second control information. During the writing process, the device body can continuously monitor the bit error rate between the touch device and the display panel. When the bit error rate is high, the second control information causes the touch device to increase the coding voltage (e.g., from 40V to 60V) to improve signal transmission accuracy and reduce the bit error rate, thereby achieving dynamic adjustment of the coding voltage. Attached Figure Description

[0101] Figure 1 is a schematic diagram of the structure of a mobile phone provided in an embodiment of this application;

[0102] Figure 2 is a schematic diagram of the structure of a tablet computer provided in an embodiment of this application;

[0103] Figure 3 is a schematic diagram of the structure of the electronic device provided in the embodiment of this application, which is a foldable electronic device;

[0104] Figure 4 is a cross-sectional view of the touch device provided in the embodiment of this application in its normal state;

[0105] Figure 5 is a cross-sectional view of the outer casing of the touch device shown in Figure 4;

[0106] Figure 6 is a cross-sectional view of the collapse structure provided in an embodiment of this application;

[0107] Figure 7 is a schematic diagram showing the tip of the conductive pen retracting into the telescopic hole in the touch device provided in the embodiment of this application;

[0108] Figure 8 is a cross-sectional view of the conductive pen tip in the touch device shown in Figure 4;

[0109] Figure 9 is a diagram of another connection method between the conductive pen tip and the pen tip holder in an embodiment of this application;

[0110] Figure 10 is a diagram showing another connection method between the top and the first main support in an embodiment of this application;

[0111] Figure 11 is a schematic diagram of the structure in which an insulating layer is provided on both the first main support and the pen tip support in the embodiment of this application;

[0112] Figure 12 is a schematic diagram of a pen tip holder with an insulating layer.

[0113] Figure 13 is a schematic diagram of the structure in which an insulating layer is provided on the first main support and the first stop.

[0114] Figure 14 is a schematic diagram of the assembly of the second main support and the collapsible structure in the touch device shown in Figure 4.

[0115] Figure 15 is a schematic diagram of the touch device provided in the embodiment of this application writing on the display panel;

[0116] Figure 16 is a schematic diagram of the assembly of the third main support and pressure detection device in the touch device shown in Figure 4.

[0117] Figure 17 is an axonometric view of a touch device provided in an embodiment of this application;

[0118] Figure 18 is an exploded view of the touch device provided in an embodiment of this application;

[0119] Figure 19 is a cross-sectional view along direction AA in Figure 17;

[0120] Figure 20 is a magnified view of a portion of point a in Figure 19;

[0121] Figure 21 is a cross-sectional view along the BB direction in Figure 17;

[0122] Figure 22 is a magnified view of part b in Figure 21;

[0123] Figure 23 is a schematic diagram of the structure of the second main bracket having a first groove and a second groove in the touch device provided in the embodiment of this application;

[0124] Figure 24 is a flowchart of a method for determining the coding voltage provided in an embodiment of this application;

[0125] Figure 25 is another flowchart of the method for determining the coding voltage provided in the embodiments of this application;

[0126] Figure 26 is a connection diagram of the touch device provided in an embodiment of this application;

[0127] Figure 27 is a schematic diagram of the connection between the device body and the control unit in an embodiment of this application;

[0128] Figure 28 is a flowchart of the operation of the electronic device provided in the embodiment of this application.

[0129] Explanation of reference numerals in the attached drawings: 1: Device body; 2: Touch device; 10: Housing; 11: Display panel; 20: Conductive pen tip; 30: Collapsible structure; 40: Pressure detection device; 50: Second elastic element; 60: Second main support; 70: Third main support; 101: First accommodating cavity; 102: Telescopic hole; 103: First contraction part; 201: Retaining sleeve; 202: Conductive part; 203: Flexible pen tip; 204: Conductive post; 205: External mounting thread; 301: First main support; 302: First sliding channel; 303: Pen tip support; 304: First elastic element; 305: Top; 306: 307: First stop; 308: Second stop; 309: Abutment bracket; 310: Abutment block; 311: First snap-fit ​​part; 312: Second snap-fit ​​part; 313: Limiting post; 314: Adjusting external thread; 315: Adjusting internal thread; 316: Mounting hole; 317: Mounting threaded hole; 318: Weight reduction hole; 319: Insulation layer; 320: First window; 601: Second sliding channel; 602: First sub-channel; 603: Second sub-channel; 604: Third sub-channel; 605: Detection electrode; 606: Second contraction part; 607: First circuit; 701: Second accommodating cavity. Detailed Implementation

[0130] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0131] Please refer to Figures 1 and 2. This application provides an electronic device, which may include a mobile phone (as shown in Figure 1), a tablet computer (as shown in Figure 2), a handheld e-reader (electronic book, abbreviated as E-BOOK), etc. This application does not limit the electronic device.

[0132] Referring again to Figures 1 and 2, the electronic device includes a device body 1. The device body 1 may include a mid-frame, a motherboard, a battery, and a display panel 11. The motherboard and the battery are both mounted on the mid-frame. The battery is electrically connected to the motherboard to supply power to the motherboard. The display panel 11 covers the mid-frame and is electrically connected to the motherboard. The display panel 11 can display images under the control of the motherboard.

[0133] In this embodiment of the application, the electronic device may include a foldable electronic device (as shown in FIG3) or a non-foldable electronic device (as shown in FIG1 and FIG2). In the implementation of the electronic device including a foldable electronic device, the electronic device may include a foldable mobile phone, a foldable tablet computer, etc. Correspondingly, the display panel 11 in the electronic device is a flexible display panel, and the middle frame may include a first middle frame and a second middle frame. The first middle frame and the second middle frame can be connected by a hinge structure so that the first middle frame can be folded or unfolded relative to the second middle frame. The display panel 11 covers the first middle frame and the second middle frame. When folded, the display panel 11 bends.

[0134] Referring again to Figure 2, the electronic device also includes a touch device 2, which is used to cooperate with the display panel 11 to realize touch, writing, drawing and other operations on the display panel 11. For example, the touch device 2 may include a stylus; that is, the touch device 2 is generally cylindrical, and the user can hold the touch device 2 and make one end of the touch device 2 contact the display panel 11 to perform writing and other operations. It is understood that this application embodiment does not limit the touch device 2; the following description will use a stylus as an example.

[0135] In some implementations, the touch device 2 can be mounted on the device body 1. For example, a receiving hole or receiving slot can be provided on the mid-frame, and the touch device 2 can be mounted in the receiving hole or receiving slot to facilitate carrying the touch device 2. Alternatively, the touch device 2 can be magnetically attached to the device body 1. In other implementations, the touch device 2 can also be set separately from the device body 1 to facilitate miniaturization of the device body 1.

[0136] Figure 4 is a cross-sectional view of the touch device provided in this application embodiment in its normal state, and Figure 5 is a cross-sectional view of the outer casing of the touch device shown in Figure 4. Please refer to Figures 4 and 5. In this application embodiment, the touch device 2 includes an outer casing 10 and a conductive pen tip 20. The outer casing 10 has a first accommodating cavity 101. The touch end of the outer casing 10 (the lower end in the position shown in Figure 4) is provided with a telescopic hole 102 communicating with the first accommodating cavity 101. The conductive pen tip 20 is disposed in the telescopic hole 102. For example, a portion of the conductive pen tip 20 can be inserted into the telescopic hole 102, and the tip of the conductive pen tip 20 extends out of the telescopic hole 102 to facilitate contact with the display panel. The outer casing 10 can be generally cylindrical, and the portion of the outer casing 10 near the touch end is frustum-shaped or truncated cone-shaped to facilitate user grip.

[0137] Figure 6 is a cross-sectional view of the collapsible structure provided in an embodiment of this application. Please refer to Figures 4 and 6. In some embodiments, the touch device 2 further includes a collapsible structure 30, which is disposed within the first accommodating cavity 101. The collapsible structure 30 includes a first main support 301, a pen tip support 303, and a first elastic member 304. The first main support 301 has a first sliding channel 302. The length direction of the first sliding channel 302 can be parallel to the center line of the telescopic hole 102. Part of the pen tip support 303 is slidably disposed within the first sliding channel 302 and is connected to the conductive pen tip 20. The first elastic member 304 is disposed within the first sliding channel 302 and is connected to the pen tip support 303. Under the action of elasticity, the first elastic member 304 causes the pen tip support 303 to extend outward from the first sliding channel 302, thereby causing part of the conductive pen tip 20 (tip) to extend outward from the telescopic hole 102.

[0138] For example, the first elastic element 304 may include a first spring, one end of which abuts against the pen tip holder 303. After the touch device is assembled, the first spring may be in a compressed state, so that the first elastic element 304 can apply pre-pressure to the conductive pen tip 20 through the pen tip holder 303, and the tip of the conductive pen tip 20 extends out of the telescopic hole 102. In other implementations, the first elastic element 304 may also include an elastic cord, one end of which is connected to the conductive pen tip 20, and the other end of which is connected to the housing 10. After the touch device is assembled, the elastic cord is in a stretched state, so that the elastic cord applies pre-pressure to the conductive pen tip 20, and the tip of the conductive pen tip 20 extends out of the telescopic hole 102.

[0139] It is understood that the touch device provided in this application includes three usage scenarios: normal writing scenario, abnormal writing scenario, and drop scenario. The following is a description of each of the three scenarios:

[0140] In a normal writing scenario, as shown in Figure 4, the user holds the outer casing, causing the conductive pen tip 20 to contact the display panel for writing. At this time, the pressure on the conductive pen tip 20 (the pressure into the telescopic hole 102) is less than the pre-pressure. This pressure is transmitted to the first elastic member 304 via the pen tip support 303. The first elastic member 304 will no longer undergo elastic deformation (the first elastic member 304 remains rigid). The first elastic member 304 keeps part of the pen tip support 303 in the position extending outside the first sliding channel 302, that is, the conductive pen tip 20 remains in the state of extending out of the telescopic hole 102. This ensures that the conductive pen tip 20 will not retract into the telescopic hole 102 during normal writing, guaranteeing writing comfort.

[0141] In abnormal writing scenarios, when the user writes with excessive force (such as forceful writing), the conductive pen tip 20 experiences pressure from the display panel exceeding the pre-pressure. The first elastic element 304 continues to deform elastically, causing the pen tip support 303 to move into the first sliding channel 302, i.e., the conductive pen tip 20 moves into the telescopic hole 102, which can alert the user that the writing force is too excessive. Figure 7 is a schematic diagram of the conductive pen tip retracting into the telescopic hole in the touch device provided in this application embodiment. Please refer to Figure 7. When the pressure on the conductive pen tip 20 from the display panel increases to greater than or equal to the upper limit pressure, the tip retracts into the telescopic hole 102, i.e., the conductive pen tip 20 is completely retracted into the outer shell 10, preventing the conductive pen tip 20 from continuing to be subjected to pressure from the display panel. On the other hand, it also prevents the display panel from continuing to be subjected to pressure from the conductive pen tip 20, thus protecting both the display panel and the conductive pen tip 20.

[0142] In a drop scenario, when the touch device 2 falls and the conductive pen tip 20 comes into contact with another object (such as the ground), the impact force on the conductive pen tip 20 can easily reach the upper limit pressure. The conductive pen tip 20 compresses the first elastic element 304 through the pen tip support 303. At the same time, the pen tip support 303 moves into the first sliding channel 302, and the conductive pen tip 20 moves into the telescopic hole 102 until the conductive pen tip 20 is completely retracted into the outer shell 10. This can prevent the conductive pen tip 20 from being damaged due to excessive force, thereby improving the service life of the touch device.

[0143] It is understood that the first sliding channel 302 should have a certain retraction space d, so that when the pressure on the conductive pen tip 20 is greater than or equal to the upper limit pressure, the pen tip support 303 is allowed to move into the first sliding channel 302 until the tip of the conductive pen tip 20 retracts into the telescopic hole 102; in addition, when the conductive pen tip 20 retracts into the telescopic hole 102, the first elastic member 304 is still within its elastic limit. When the pressure on the conductive pen tip 20 decreases, the first elastic member 304 drives the conductive pen tip 20 to extend out of the telescopic hole 102 through the pen tip support 303, so as to facilitate the next writing.

[0144] In this embodiment, an upper limit pressure can be set according to the safe pressure that the display panel can withstand. For example, the safe pressure can be much greater than the upper limit pressure (e.g., the safe pressure is 5 times, 10 times, 20 times, etc. of the upper limit pressure) to ensure that when the pressure of the conductive pen tip 20 on the display panel reaches the upper limit pressure, the pressure of the conductive pen tip 20 on the display panel has not reached the safe pressure, so as to avoid damage to the display panel. The safe pressure can be the maximum pressure that the display panel can withstand.

[0145] Similarly, the pre-pressure can be set according to the normal writing pressure range of ordinary people. For example, the normal writing pressure range can be 50gf-200gf, and correspondingly, the pre-pressure can be slightly greater than or equal to 200gf (such as 300gf-400gf) to ensure that the first elastic element 304 remains rigid during normal writing, and the conductive pen tip 20 does not move into the telescopic hole 102. It is understood that the pre-pressure should be less than the safety pressure and the upper limit pressure.

[0146] Referring again to Figures 4 and 6, the touch device 2 provided in this embodiment has a housing 10 with a first accommodating cavity 101. A telescopic hole 102 communicating with the first accommodating cavity 101 is provided on the housing 10. A conductive pen tip 20 is disposed in the telescopic hole 102. A first main support 301 of the collapsible structure 30 is disposed within the first accommodating cavity 101. The first main support 301 has a first sliding channel 302. A portion of the pen tip support 303 is slidably disposed within the first sliding channel 302, and the pen tip support 303 is connected to the conductive pen tip 20. A first elastic element 304 is disposed within the first sliding channel 302 and is connected to the pen tip support 303. As shown in Figure 4, under normal writing conditions, the first elastic element, under its own elastic force, drives the tip of the conductive pen tip 20 to extend out of the first telescopic hole 102 through the pen tip support 303, so that the tip of the conductive pen tip 20 can contact the display panel during use. As shown in Figure 7, under abnormal writing conditions, when the pressure of the conductive pen tip 20 on the display panel reaches the pre-pressure, the first elastic element 304 continues to deform elastically, and the conductive pen tip 20 begins to retract into the telescopic hole 102, thus indicating to the user that the writing pressure is too high to avoid damage to the display panel. When the pressure of the conductive pen tip 20 from the display panel is greater than or equal to the upper limit pressure, the tip of the conductive pen tip 20 retracts into the telescopic hole 102 to prevent the conductive pen tip 20 from continuing to apply pressure to the display panel, thereby avoiding excessive pressure on the display panel and further preventing damage to the display panel.

[0147] In a drop scenario, when the touch device 2 falls and the conductive pen tip 20 comes into contact with other objects, the impact force on the conductive pen tip 20 can easily reach the upper limit pressure. The tip of the conductive pen tip 20 retracts into the telescopic hole 102, which can prevent the conductive pen tip 20 from being damaged due to excessive force, thereby improving the service life of the touch device 2.

[0148] Referring again to Figure 4, it can be understood that in the implementation of a foldable electronic device (as shown in Figure 3), the display panel 11 is a flexible display panel. To maintain its bending performance, the cover plate on the surface of the display panel 11 generally has low hardness, making the display panel 11 more susceptible to damage from excessive pressure from the conductive pen tip 20. However, in the touch device 2 of this embodiment, when the pressure of the conductive pen tip 20 on the display panel 11 reaches a pre-pressure level, the conductive pen tip 20 begins to retract into the telescopic hole 102, indicating to the user that the writing pressure is too high. When the pressure from the display panel 11 on the conductive pen tip 20 is greater than or equal to the upper limit pressure, the tip of the conductive pen tip 20 retracts into the telescopic hole 102, preventing the conductive pen tip 20 from continuing to apply pressure to the display panel 11. Therefore, the touch device 2 of this embodiment provides particularly effective protection for the display panel 11 in foldable electronic devices.

[0149] In one embodiment, the conductive pen tip 20 can be detachably connected to the pen tip holder 303. This configuration allows the conductive pen tip 20 to be detached from the pen tip holder 303 for replacement when it wears out or becomes damaged after prolonged use, thereby extending the lifespan of the touch device 2.

[0150] Figure 8 is a cross-sectional view of the conductive pen tip in the touch device shown in Figure 4. Please refer to Figures 4 and 8. In some implementations, the detachable connection between the conductive pen tip 20 and the pen tip holder 303 can be achieved by having a mounting hole 315 at one end of the pen tip holder 303 facing the telescopic hole 102. Part of the conductive pen tip 20 passes through the mounting hole 315, and the conductive pen tip 20 is interference-fitted with the mounting hole 315. With this configuration, the conductive pen tip 20 can be removed by pulling it out of the mounting hole 315, and installed by inserting it into the mounting hole 315, thus facilitating the removal and installation of the conductive pen tip 20.

[0151] For example, the conductive pen tip 20 may include a retaining sleeve 201 and a conductive portion 202. The retaining sleeve 201 is fitted over the conductive portion 202. A portion of the conductive portion 202 extends from one end of the retaining sleeve 201 to form the tip of the conductive pen tip 20 for contact with the display panel. Another portion of the conductive portion 202 extends from the other end of the retaining sleeve 201 to contact the sidewall of the mounting hole 315, thereby achieving an electrical connection between the conductive pen tip 20 and the pen tip holder 303. The conductive portion 202 may have a certain degree of flexibility to prevent scratching the display panel when in contact with it. For example, the material of the conductive portion 202 may include silicone and conductive particles, with the conductive particles doped into the silicone to make the conductive portion 202 both flexible and conductive. The conductive particles may include graphite particles, metal particles, etc. The material of the retaining sleeve 201 may include insulating materials such as resin and rubber. The retaining sleeve 201 has a certain rigidity so that the conductive pen tip 20 maintains a certain rigidity. In addition, the retaining sleeve 201, which uses insulating material, can also achieve isolation between the conductive part 202 and the detection electrode 605.

[0152] Figure 9 illustrates another connection method between the conductive pen tip and the pen tip holder. Please refer to Figure 9. In other implementations, the detachable connection between the conductive pen tip 20 and the pen tip holder 303 can be achieved by having a threaded mounting hole 316 on the end of the pen tip holder 303 facing the telescopic hole 102, and an external mounting thread 205 on the conductive pen tip 20, which engages with the threaded mounting hole 316. With this configuration, the pen tip holder 303 and the conductive pen tip 20 are connected via a threaded connection, resulting in a relatively secure connection between the conductive pen tip 20 and the pen tip holder 303.

[0153] For example, the conductive pen tip 20 may include a flexible pen tip 203 and a conductive post 204. The flexible pen tip 203 is disposed at one end of the conductive post 204. The flexible pen tip 203 serves as the tip of the conductive pen tip 20 to contact the display panel. The flexible pen tip 203 has a certain degree of flexibility to avoid scratching the display panel when in contact with it. For example, the material of the flexible pen tip 203 may include silicone and conductive particles. The conductive particles are doped into the silicone to make the flexible pen tip 203 conductive while having a certain degree of flexibility. The conductive particles may include graphite particles, metal particles, etc. The material of the conductive post 204 may include metal, graphite, etc., and the external mounting thread 205 is disposed on the side wall of the conductive post 204.

[0154] In another embodiment, the pen tip holder 303 can also be fixedly connected to the conductive pen tip 20. For example, the pen tip holder 303 can be connected to the conductive pen tip 20 by welding; of course, the pen tip holder 303 can also be integrally formed with the conductive pen tip 20 by casting, forging, or other methods. These methods can improve the connection between the conductive pen tip 20 and the pen tip holder 303.

[0155] Referring to Figure 6, in some embodiments, the pen tip holder 303 may be provided with a weight-reducing hole 317. The weight-reducing hole 317 may extend inward from the end of the pen tip holder 303 facing the first elastic member 304, and the weight-reducing hole 317 may be a blind hole. By providing the weight-reducing hole 317, the mass of the pen tip holder 303 can be reduced, so as to achieve the lightweighting of the collapsible structure 30 and the touch device 2. Referring to Figure 4, in some embodiments, the collapsible structure 30 further includes a top abutment 305, which is connected to the first main support 301. In the implementation where the first elastic member 304 includes a first spring, the first elastic member 304 is connected to the pen tip holder 303 such that one end of the first spring abuts against the pen tip holder 303; the other end of the first spring abuts against the top abutment 305, so that the first spring has a certain amount of compression. In normal writing scenarios, the first spring applies pre-pressure to the pen tip support 303, so that the tip of the conductive pen tip 20 is kept in the state of extending out of the telescopic hole 102, that is, the conductive pen tip 20 is kept in the state of extending out of the telescopic hole 102.

[0156] Understandably, in normal writing scenarios, the first spring has a first compression due to the pre-pressure provided to the pen tip support 303. In abnormal writing scenarios, the pressure exerted by the conductive pen tip 20 on the first spring through the pen tip support 303 is greater than the pre-pressure, and at this time the first spring has a second compression, which is greater than the first compression.

[0157] Referring to Figures 4 and 6, in some embodiments, a first stop 306 is provided at the end of the first main support 301 (the end near the touch terminal), and the first stop 306 protrudes towards the center line of the first sliding channel 302. Correspondingly, a second stop 307 is provided on the portion of the pen tip support 303 located within the first sliding channel 302. The first stop 306 abuts against the second stop 307 to prevent the pen tip support 303 from moving out of the first sliding channel 302, thereby preventing the pen tip support 303 and the conductive pen tip 20 from falling off the touch terminal of the housing 10.

[0158] For example, the pen tip holder 303 can be generally cylindrical, the cross-section of the first sliding channel 302 is generally circular, and the first stop 306 and the second stop 307 can both be annular to increase the contact area between the first stop 306 and the second stop 307, while preventing the pen tip holder 303 from shaking in the first sliding channel 302.

[0159] In the above implementation, there can be multiple second stop portions 307, which are spaced apart along the length of the first sliding channel 302. The second stop portion 307 closest to the touch end abuts against the first stop portion 306. All the second stop portions 307 contact the sidewall of the first sliding channel 302, preventing the pen tip holder 303 from wobbling within the first sliding channel 302, thereby avoiding wobbling of the conductive pen tip 20 during use and ensuring writing accuracy.

[0160] Referring again to Figures 4 and 6, in this embodiment, the connection between the abutment 305 and the first main support 301 can include a snap-fit ​​connection between the abutment 305 and the first main support 301. For example, the abutment 305 is provided with a first snap-fit ​​portion 310, and the side wall of the first sliding channel 302 is provided with a second snap-fit ​​portion 311. At least a portion of the abutment 305 is disposed within the first sliding channel 302. The first snap-fit ​​portion 310 and the second snap-fit ​​portion 311 snap-fit ​​together to prevent the abutment 305 from moving along the length of the first sliding channel 302. This configuration, by connecting the first main support 301 and the abutment 305 through a snap-fit ​​connection, allows for precise control of the position of the abutment 305, thereby accurately controlling the preload of the first elastic member 304. After installation, there is no need to adjust the position of the abutment 305, facilitating the assembly and debugging of the touch device 2.

[0161] For example, the first engaging portion 310 may include a locking block disposed on the abutment top 305, and correspondingly, the second engaging portion 311 may include a locking groove disposed on the side wall of the first sliding channel 302, with the locking block engaging within the locking groove to achieve engagement between the first engaging portion 310 and the second engaging portion 311. The end face of the locking block near the first elastic member 304 is inclined relative to the centerline of the first sliding channel 302, while the end face of the locking block away from the first elastic member 304 is substantially perpendicular to the centerline of the first sliding channel 302.

[0162] When assembling the collapsible structure 30, the pen tip holder 303 is first inserted from the right end of the first sliding channel 302 (as shown in Figure 6). Then, the first elastic member 304 is inserted from the right end of the first sliding channel 302, with its left end abutting against the right end of the pen tip holder 303. Next, the abutment 305 is inserted from the right end of the first sliding channel 302. The end face of the locking block near the first elastic member 304 (the inclined surface in Figure 6) guides the abutment 305 into the first sliding channel 302. 05 moves into the first sliding channel 302 until the block enters the slot; after the block enters the slot, the end face of the block away from the first elastic member 304 (the right end face of the block in Figure 6) abuts against the side wall of the slot to prevent the top 305 from moving to the right; during the above process, the top 305 abuts against the first elastic member 304 to the left, causing the first elastic member 304 to be compressed, and the first elastic member 304 generates a pre-pressure on the pen tip support 303 to the left, so that part of the pen tip support 303 extends out from the first sliding channel 302.

[0163] Figure 10 illustrates another connection method between the abutment 305 and the first main support. In other embodiments, the abutment 305 is connected to the first main support 301, which may include a screw connection between the abutment 305 and the first main support 301. For example, the abutment 305 is provided with an adjusting external thread 313, and the sidewall of the first sliding channel 302 is provided with an adjusting internal thread 314. The adjusting external thread 313 and the adjusting internal thread 314 engage to prevent the abutment 305 from moving along the length of the first sliding channel 302 within the first sliding channel 302. With this configuration, the position of the abutment 305 within the first sliding channel 302 can be adjusted by twisting the abutment 305, thereby adjusting the pre-pressure and upper limit pressure of the first elastic element 304 on the pen tip support 303. This allows for adaptation to different writing forces and display panels with different safety pressures, improving the user experience and enhancing the versatility of the touch device 2.

[0164] Please continue to refer to Figures 6 and 10. In the above embodiment, a limiting post 312 is provided at one end of the top 305. In the implementation of the first elastic member 304 including the first spring, the limiting post 312 passes through the first spring. The limiting post 312 can limit the first spring to prevent the first spring from tilting in the first sliding channel 302.

[0165] In this embodiment, the touch device 2 may include a control board (not shown), which is electrically connected to the conductive pen tip 20. The display panel may include a touch structure. When writing, the control board sends a position signal to the conductive pen tip 20. The conductive pen tip 20 contacts the display panel, and the touch structure receives the position signal, thereby obtaining the position of the display panel corresponding to the tip of the conductive pen tip 20, so as to display lines at that position.

[0166] For example, the touch structure may include a touch layer of the display panel and a control chip. The touch layer is electrically connected to the control chip, which is used to control the display panel and also to implement touch control. When the conductive pen tip 20 contacts the display panel, the touch layer receives the position signal of the conductive pen tip 20 (for example, a capacitor is formed between the conductive pen tip 20 and the touch layer, and the position signal is transmitted through the capacitor), and sends the position signal to the control chip. The control chip controls the display of lines at the corresponding positions according to the position signal.

[0167] Referring again to Figure 4, in some embodiments, the touch device 2 further includes a pressure detection device 40 and a short-range communication device (not shown). The control board is electrically connected to both the pressure detection device 40 and the short-range communication device. The pressure detection device 40 may be disposed on the side of the first main support 301 away from the touch end. The top 305 abuts against the pressure detection device 40. The pressure detection device is used to detect the pressure from the top 305, that is, the pressure detection device 40 is used to detect the pressure of the conductive pen tip 20 on the display panel. The control board generates a handwriting signal based on the pressure detected by the pressure detection device 40 and sends the handwriting signal to the device body through the short-range communication device. The device body controls the display panel to form lines of a certain thickness based on the handwriting signal.

[0168] For example, when the user applies greater writing pressure, the pressure detection device 40 detects greater pressure. In this case, the control board sends a handwriting signal to the device body via a short-range communication device, and the display panel forms thicker lines or handwriting based on this signal. Conversely, when the user applies less writing pressure, the pressure detection device 40 detects less pressure. In this case, the control board sends a handwriting signal to the device body via the short-range communication device, and the display panel forms thinner lines based on this signal. Through this configuration, the thickness of the lines displayed on the panel is positively correlated with the user's writing pressure, thus improving the user experience.

[0169] It is understood that short-range communication devices may include Bluetooth modules, Wi-Fi modules, etc., and the embodiments of this application do not limit this.

[0170] Referring again to Figures 4 and 6, in this embodiment, the abutment top 305 includes an abutment bracket 308 and an abutment block 309. The abutment top 305 is connected to the first main bracket 301, and the abutment bracket 308 is also connected to the first main bracket 301. The abutment top 305 abuts against the first spring, and the abutment bracket 308 abuts against the first spring. The abutment block 309 is disposed at the end of the abutment bracket 308 opposite to the first spring, and the abutment top 305 abuts against the pressure detection device 40, and the abutment block 309 abuts against the pressure detection device 40. This configuration, where the abutment block 309 and the abutment bracket 308 are separate structures, allows the hardness of the abutment block 309 to be less than that of the abutment bracket 308, meaning the abutment block 309 has a certain degree of elasticity. This protects the pressure detection device 40 from damage by the abutment top 305, thus improving the service life of the touch device 2. For example, the material of the abutment block 309 may include: polyetheretherketone (PEEK), silicone, or other materials with a certain degree of elasticity.

[0171] In some implementations, the end of the abutment bracket 308 facing away from the first spring is provided with a mounting groove, and at least part of the abutment block 309 is disposed in the mounting groove. This arrangement facilitates the disassembly and installation of the abutment block 309.

[0172] Referring again to Figure 4, in the above embodiment, the touch device 2 further includes a second elastic element 50. The second elastic element 50 is disposed in the first accommodating cavity 101. The second elastic element 50 abuts against the first main support 301. The elastic force of the second elastic element 50 is transmitted sequentially through the first main support 301, the pen tip support 303 and the first elastic element 304 to the abutting top 305, so that the abutting top 305 abuts against the pressure detection device 40 to prevent the first main support 301 from moving within the first accommodating cavity 101.

[0173] For example, the second elastic element 50 may include a second spring, which is in a compressed state and is sleeved on the pen tip support 303 located outside the first sliding channel 302. With this configuration, the elastic force of the second spring is transmitted sequentially through the first main support 301, the pen tip support 303, and the first elastic element 304 to the abutment 305, causing the abutment 305 to abut against the pressure detection device 40. The second elastic element 50 has a simple structure, and the fact that the second spring is sleeved on the pen tip support 303 prevents the second spring from tilting relative to the centerline of the first sliding channel 302, thereby ensuring that the first main support 301 is subjected to uniform force.

[0174] Referring again to Figure 4, in some embodiments, both the pen tip holder 303 and the first main holder 301 are conductive holders. The conductive pen tip 20 is electrically connected to the control board via the pen tip holder 303 and the first main holder 301. That is, the control board transmits position signals to the conductive pen tip 20 sequentially via the first main holder 301 and the pen tip holder 303. The pen tip holder 303 and the first main holder 301 are configured to disconnect the electrical connection between the conductive pen tip 20 and the control board when the pen tip holder 303 moves into the first sliding channel 302. Specifically, when the conductive pen tip 20 is subjected to pressure from the display panel reaching a pre-pressure level, the conductive pen tip 20 moves into the telescopic hole 102. At this time, the pen tip holder 303 moves into the first sliding channel 302, and the electrical connection between the pen tip holder 303 and the first main holder 301 is disconnected. With this configuration, when the pressure exerted on the conductive pen tip 20 by the display panel is greater than or equal to the pre-pressure, the pen tip support 303 and the first main support 301 disconnect the electrical connection between the conductive pen tip 20 and the control board. At this time, the display panel will no longer display lines because it cannot receive the position signal, which can further prompt the user that the writing pressure is too high, thereby further protecting the display panel and preventing damage to the display panel.

[0175] For example, both the pen tip holder 303 and the first main holder 301 are conductive holders, and the materials of the pen tip holder 303 and the first main holder 301 can include metals such as copper, aluminum, and iron or their alloys.

[0176] In some implementations, when the pen tip holder 303 moves into the first sliding channel 302 and the electrical connection between the pen tip holder 303 and the first main holder 301 is disconnected, the control board can send a prompt signal to the device body via a short-range communication device. After receiving the prompt signal, the device body generates prompt information to further remind the user that the writing pressure is too high. For example, the prompt information may include images or text information displayed on the display panel, sound information played by the speaker, vibration information, etc., and this application embodiment does not limit this.

[0177] In other implementations, when the pen tip holder 303 moves into the first sliding channel 302 and the electrical connection between the pen tip holder 303 and the first main holder 301 is disconnected, the touch device can also generate a prompt message to further remind the user that the writing pressure is too high. For example, the prompt message may include light information, sound information, vibration information, etc., and this application embodiment does not limit this.

[0178] In this embodiment, the pen tip support 303 moves into the first sliding channel 302, and the electrical connection between the pen tip support 303 and the first main support 301 is disconnected, which can be achieved in the following three ways:

[0179] Figure 11 is a schematic diagram showing that both the first main support and the pen tip support are provided with insulating layers. Referring to Figure 11, in one implementation, the first main support 301, the pen tip support 303, the first stop 306, and the second stop 307 are all covered with insulating layers 318. The insulating layer on the first stop 306 is provided with a first window 319, and the insulating layer 318 on the second stop 307 is provided with a second window 320. The first stop 306 exposed by the first window 319 abuts against the second stop 307 exposed by the second window 320. That is, the first stop 306 only contacts the second stop 307 exposed by the second window 320 through the portion exposed by the first window 319, so as to achieve the electrical connection between the first main support 301 and the pen tip support 303. In abnormal writing scenarios, the conductive pen tip 20 moves into the outer casing, the pen tip support 303 moves into the first sliding channel 302, and the first stop 306 separates from the second stop 307, thereby cutting off the electrical connection between the first main support 301 and the pen tip support 303. The structure is simple and easy to manufacture. For example, the insulating layer material may include insulating materials such as resin or rubber.

[0180] Figure 12 is a schematic diagram of a pen tip holder with an insulating layer. Referring to Figure 12, in another implementation, both the pen tip holder 303 and the second stop 307 are covered with an insulating layer 318. A second window 320 is provided on the insulating layer 318 of the second stop 307. The second stop 307 exposed by the second window 320 abuts against the first stop 306. That is, the second stop 307 only contacts the first stop 306 through the portion exposed by the second window 320, thus achieving an electrical connection between the first main holder 301 and the pen tip holder 303. In abnormal writing scenarios, the conductive pen tip 20 moves into the housing, the pen tip holder 303 moves into the first sliding channel 302, and the first stop 306 separates from the second stop 307, which can also sever the electrical connection between the first main holder 301 and the pen tip holder 303.

[0181] Figure 13 is a schematic diagram of the structure with insulating layers on the first main support and the first stop. Referring to Figure 13, in other implementations, insulating layers 318 are provided on both the first main support 301 and the first stop 306. A first window 319 is provided on the insulating layer 318 on the first stop 306, and the first stop 306 exposed by the first window 319 contacts the second stop 307. That is, the first stop 306 is only disconnected from the second stop 307 through the part exposed by the first window 319, so as to realize the electrical connection between the first main support 301 and the pen tip support 303. In abnormal writing scenarios, the conductive pen tip 20 moves into the outer shell, the pen tip support 303 moves into the first sliding channel 302, and the first stop 306 separates from the second stop 307, which can also cut off the electrical connection between the first main support 301 and the pen tip support 303.

[0182] Figure 14 is a schematic diagram of the assembly of the second main support and the collapsible structure in the touch device shown in Figure 4. Please refer to Figures 4 and 14. In this embodiment, the touch device 2 further includes a second main support 60, which is disposed within the first accommodating cavity 101 and connected to the outer shell 10. The second main support 60 has a second sliding channel 601, and the collapsible structure 30 is disposed within the second sliding channel 601. With this configuration, the position of the first main support 301 within the first accommodating cavity 101 can be restricted by the second main support 60, thereby preventing the first main support 301 from shaking within the first accommodating cavity 101, and thus preventing the pen tip support 303 and the conductive pen tip 20 from shaking.

[0183] In some implementations, the second sliding channel 601 includes a first sub-channel 602, a second sub-channel 603, and a third sub-channel 604. The first sub-channel 602 is located near the telescopic hole 102, and the second sub-channel 603 is located between the first sub-channel 602 and the third sub-channel 604. One end of the second sub-channel 603 is connected to one end of the first sub-channel 602, and the other end of the second sub-channel 603 is connected to one end of the third sub-channel 604. The other end of the first sub-channel 602 faces the telescopic hole 102. The first main support 301 slides within the third sub-channel 604. A portion of the pen tip support 303 extends from the first sliding channel 302 and slides within the second sub-channel 603. The conductive pen tip 20 passes through the first sub-channel 602 and connects to the pen tip support 303 within the second sub-channel 603. With this configuration, the conductive pen tip 20 can be further limited by the first sub-channel 602 to prevent it from shaking; the pen tip support 303 can be limited by the second sub-channel 603 to prevent it from shaking.

[0184] In the above implementation, both the conductive pen tip 20 and the pen tip holder 303 can be approximately cylindrical, and the cross-sectional area of ​​the conductive pen tip 20 is smaller than the cross-sectional area of ​​the pen tip holder 303. Correspondingly, the cross-sectional area of ​​the first sub-channel 602 is smaller than the cross-sectional area of ​​the second sub-channel 603 to ensure the limiting effect of the first sub-channel 602 on the conductive pen tip 20. Similarly, the cross-sectional area of ​​the second sub-channel 603 is smaller than the cross-sectional area of ​​the third sub-channel 604 to ensure the limiting effect of the second sub-channel 603 on the pen tip holder 303.

[0185] In the implementation of the touch device 2 including the second elastic element 50, the second elastic element 50 includes a second spring. Correspondingly, the second elastic element 50 can be disposed in the third sub-channel 604 and sleeved on the pen tip bracket 303. One end of the second spring abuts against the end of the third sub-channel 604 near the second sub-channel 603, and the other end of the second spring abuts against the first main bracket 301. The second spring is compressed to abut against the first main bracket 301 in a direction away from the touch end.

[0186] In the implementation where the conductive pen tip 20 is electrically connected to the control board via the pen tip bracket 303 and the first main bracket 301, a first line 607 can be provided on the second main bracket 60. The first line 607 extends to the end of the third sub-channel 604 near the second sub-channel 603. The second spring contacts the first line 607, and the first line 607 is electrically connected to the main board. That is, the first main bracket 301 is connected to the control board via the second spring and the first line 607. With this configuration, the electrical connection between the first main bracket 301 and the control board is achieved using the second spring and the line on the second main bracket 60. The connection structure is simple, and there is no need to set up an additional connection structure for electrically connecting the first main bracket 301 and the control board, which simplifies the structure of the touch device 2 and also improves the structural compactness of the touch device 2, making it easier to achieve miniaturization of the touch device 2.

[0187] For example, the material of the second main support 60 may include resin, rubber, etc. The first line 607 may include a metal sheet attached to the second main support 60; or, the first line 607 may include a metal layer formed by electroplating or the like. This application embodiment does not limit the first line 607.

[0188] Referring again to Figures 4 and 14, in this embodiment, the touch device 2 further includes a detection electrode 605. The detection electrode 605 is disposed at the end of the second main support 60 near the touch end. That is, the detection electrode 605 is disposed within the first accommodating cavity 101 and located at the end of the second main support 60 near the telescopic hole 102. The detection electrode 605 is electrically connected to the control board, and the touch board sends an angle detection signal to the detection electrode 605. When writing, the touch end is close to the display panel, and the display panel receives the angle detection signal. The device body generates the angle between the center line of the conductive pen tip 20 and the display panel based on the angle detection signal, and can control the display panel to form a pen tip according to the size of the angle.

[0189] Figure 15 is a schematic diagram of the touch device provided in this application writing on the display panel. Please refer to Figure 15. For example, the touch layer of the display panel 11 can form a capacitor with the detection electrode 605. The conductive pen tip 20 sends the angle detection signal to the touch layer through the capacitor. The control chip receives the angle detection signal and calculates the vertical distance a between the detection electrode 605 and the display panel 11. Since the straight distance b between the detection electrode 605 and the tip of the conductive pen tip is known, the angle A between the center line of the conductive pen tip and the display panel can be calculated using inverse trigonometric functions (such as arcsine functions) based on the vertical distance a and the straight distance b.

[0190] Referring again to Figures 5 and 14, in some implementations, the cross-sectional area of ​​the first accommodating cavity 101 near the touch end gradually decreases to form a first contraction portion 103, which may be approximately frustum-shaped or truncated pyramidal. Similarly, the cross-sectional area of ​​the second main support 60 near the touch end also gradually decreases to form a second contraction portion 606, which may also be approximately frustum-shaped or truncated pyramidal. The surface of the second contraction portion 606 matches the sidewall of the first contraction portion 103, thus limiting the position of the second main support 60, improving its positional accuracy, and facilitating its installation. For example, the detection electrode 605 may cover the end face of the second main support 60 facing the touch end and the surface of the second contraction portion 606.

[0191] In some embodiments, a second circuit is provided on the second main support 60, and the detection electrode 605 is electrically connected to the control board through the second circuit. For example, the second electrode may include a metal sheet attached to the second main support 60; or, the second circuit may include a metal layer formed by electroplating or other methods. This application embodiment does not limit the scope of the second circuit.

[0192] It is understandable that, in order to avoid interference between the position signal in the conductive pen tip 20 and the angle detection signal in the detection electrode 605, the distance between the conductive pen tip 20 and the detection electrode 605 can be appropriately increased, or an insulating object can be placed between the conductive pen tip 20 and the detection electrode 605.

[0193] Figure 16 is a schematic diagram of the assembly of the third main support and pressure detection device in the touch device shown in Figure 4. Please refer to Figures 4 and 16. In this embodiment, the touch device 2 further includes a third main support 70, which is disposed within the first accommodating cavity 101 and connected to the outer shell 10. The third main support 70 has a second accommodating cavity 701, with one end of the second accommodating cavity 701 facing the touch terminal being an open end. A portion of the second main support 60 is disposed within the second accommodating cavity 701, while the remaining portion of the second main support 60 extends from the open end and is connected to the third main support 70. With this configuration, the second main support 60 can be fixed to the outer shell 10 via the third main support 70.

[0194] For example, the third main bracket 70 is connected to the outer shell 10 by means of snap-fit ​​or adhesive bonding; the second main bracket 60 is connected to the third main bracket 70 by means of snap-fit ​​or adhesive bonding. The materials of the second main bracket 60, the third main bracket 70, and the outer shell 10 may include plastic, rubber, etc., and this application embodiment does not limit this.

[0195] In some implementations, the pressure detection device 40 is disposed in the second accommodating cavity 701, and the pressure detection device 40 is located at the end of the second accommodating cavity 701 opposite to the open end; the pressure detection device 40 can be connected to the third main support 70 by means of bolt connection or adhesive bonding.

[0196] An assembly process for the touch device provided in this application embodiment can be as follows: First, the second main bracket 60 is inserted into the end of the first accommodating cavity 101 away from the telescopic hole 102. Then, the second spring is sleeved on the pen tip bracket 303, and the collapsible structure 30 is inserted into the end of the second sliding channel 601 away from the telescopic hole 102. Part of the pen tip bracket 303 extends into the second sub-channel 603, and the second spring abuts against the end of the third sub-channel 604 near the second sub-channel 603. After this, the third main bracket 70 is inserted into the end of the first accommodating cavity 101 away from the telescopic hole 102, and part of the second main bracket 60 enters from the opening end of the second accommodating cavity 701. The pressure detection device 40 on the third main bracket 70 abuts against the top 305 of the telescopic hole 102. The second spring is compressed sequentially by the first spring, the pen tip bracket 303, and the first main bracket 301, so that both the first spring and the second spring are compressed. The elastic force of the first spring is the preload.

[0197] Another assembly process of the touch device provided in this application embodiment is as follows: First, the second spring is sleeved on the pen tip holder 303, and the collapsible structure 30 is inserted from the end of the second sliding channel 601 away from the telescopic hole 102. Part of the pen tip holder 303 extends into the second sub-channel 603, and the second spring abuts against the end of the third sub-channel 604 near the second sub-channel 603. After this, the end of the second main support 60 enters from the opening end of the second accommodating cavity 701, and the pressure detection device 40 on the third main support 70 pushes against the top 305 of the first sub-channel 602. The second spring is compressed sequentially by the first spring, the pen tip holder 303, and the first main support 301, so that both the first and second springs are compressed. The elastic force of the first spring is the preload, thereby obtaining the assembly. Then, the assembly is inserted from the end of the first accommodating cavity 101 away from the telescopic hole 102.

[0198] Referring to Figures 17-19, in some embodiments, the detection electrode 605 is disposed at one end of the second main support 60 near the touch end (lower end). The detection electrode 605 includes a fixing part 6051 and an extension part 6052, which are disposed along the length direction of the conductive pen tip 20. The extension part 6052 is located between the fixing part 6051 and the telescopic hole 102. The fixing part 6051 is connected to the second main support 60, and the extension part 6052 extends toward the touch end to be close to the touch end. This arrangement can reduce the distance between the extension part 6052 and the touch end. In use, it shortens the distance between the detection electrode 605 and the display panel. When the voltage (coding voltage) of the detection electrode 605 relative to the touch layer of the display panel is constant, it can reduce the bit error rate of the detection signal transmitted between the detection electrode 605 and the display panel, increase the signal strength (amplitude of the detection signal), and improve the accuracy of the angle between the center line of the conductive pen tip 20 and the display panel. On the other hand, while ensuring that the bit error rate of the detection signal transmitted between the detection electrode 605 and the display panel is low and the detection signal has a high signal quantity, the voltage (coding voltage) of the detection electrode 605 relative to the touch layer of the display panel can be reduced, thereby reducing the power consumption of the touch device.

[0199] In other aspects, because the distance between the detection electrode 605 and the display panel is small, the detection signal strength near the tip of the conductive pen tip 20 is large. The detection electrode 605 removes the influence of external signals on the conductive pen tip 20, thereby reducing the interference of external signals on the position signal transmitted between the conductive pen tip 20 and the display panel, which can improve the accuracy of the obtained position of the conductive pen tip 20.

[0200] In some examples, the detection electrode 605 is provided with a first through hole 6053, which passes through the fixing part 6051 and the extension part 6052. Part of the conductive pen tip 20 passes through the first through hole 6053. The position of the conductive pen tip 20 can be restricted through the first through hole 6053, thereby preventing the conductive pen tip 20 from shaking and ensuring writing quality.

[0201] Referring to Figures 19 and 20, it can be understood that in the implementation of the conductive pen tip 20 including the conductive part 202 and the retaining sleeve 201 located outside the conductive part 202, the retaining sleeve 201 is an insulating sleeve. The retaining sleeve 201 can contact the hole wall of the first through hole 6053, thereby achieving insulation between the conductive pen tip 20 and the detection electrode 605, so as to avoid mutual interference between the signal on the conductive pen tip 20 and the signal between the detection electrode 605.

[0202] In some implementations, the fixing part 6051 and the second main support 60 can be connected via a fixing groove and a fixing block. In some examples, the fixing groove can be provided on the fixing part 6051, and correspondingly, the fixing block is provided on the second main support 60, with the fixing block located within the fixing groove, to achieve the connection between the fixing part 6051 and the second main support 60, thereby achieving the connection between the detection electrode 605 and the second main support 60. In other examples, the fixing groove can be provided on the second main support 60, and correspondingly, the fixing block is provided on the fixing part 6051, with the fixing block located within the fixing groove, which can also achieve the connection between the fixing part 6051 and the second main support 60, thereby achieving the connection between the detection electrode 605 and the second main support 60.

[0203] For example, the fixing block and the fixing groove can be connected by bolts, snap-fit, adhesive bonding or other means, and this application embodiment does not limit this.

[0204] In some embodiments, the fixing part 6051 and the extension part 6052 can be an integral structure. Of course, the fixing part 6051 can also be connected by bolts, snap-fit, or other means. The fixing part 6051 and the extension part 6052 can both be generally columnar, and their center lines can both coincide with the center line of the telescopic hole 102. In a cross-section perpendicular to the center line, the cross-sectional area of ​​the fixing part 6051 can be larger than that of the extension part 6052, so that the extension part 6052 can extend into the touch terminal within the first contraction part 103 of the housing 10, thereby shortening the distance between the extension part 6052 and the touch terminal.

[0205] Referring to Figures 21 and 22, in some embodiments, the touch device includes a second circuit 609 and a control board. The second circuit 609 is disposed on the second main support 60. One end of the second circuit 609 is connected to the detection electrode 605, and the other end of the second circuit 609 is electrically connected to the control board to realize the connection between the detection electrode 605 and the control board. The second circuit 609 being disposed on the second main support 60 improves the structural compactness of the touch device.

[0206] In some implementations, the second line 609 includes a first connecting ring 6092 and a first wire 6091. The first connecting ring 6092 is sleeved on the detection electrode 605. One end of the first wire 6091 is connected to the first connecting ring 6092, and the other end of the first wire 6091 is electrically connected to the control board. The first connecting ring 6092 sleeved on the detection electrode 605 increases the contact area between the first connecting ring 6092 and the detection electrode 605, thereby preventing poor contact between them.

[0207] In the implementation of the detection electrode 605 including a fixed part 6051 and an extension part 6052, the first connecting ring 6092 can be sleeved on the fixed part 6051. Since the extension part 6052 is closer to the touch end, the space of the first contraction part 103 where the extension part 6052 is located is small. Sleeving the first connecting ring 6092 on the fixed part 6051 can avoid occupying the space for installing the extension part 6052 and ensure that the extension part 6052 has a sufficiently large volume.

[0208] For example, the first connecting ring 6092 can be connected to the first wire 6091 by welding. Of course, the first connecting ring 6092 can also be an integral structure with the first wire 6091. In some examples, the materials of the first connecting ring 6092 and the first wire 6091 can both include metals such as copper and aluminum. Correspondingly, the first wire 6091 can include metal wire, and the first connecting ring 6092 and the first wire 6091 can be an integral structure. Furthermore, the first connecting ring 6092 can also be formed by winding metal wire around a central line to reduce manufacturing difficulty.

[0209] In the above implementation, the first wire 6091 can be laid on the outer wall of the second main bracket 60 and extend away from the touch terminal on the outer wall of the second main bracket 60 to be electrically connected to the control board. For example, a first groove 6093 can be provided on the outer wall of the second main bracket 60, and the first wire 6091 can be accommodated in the first groove 6093 (as shown in Figure 23), which can reduce the space occupied by the first wire 6091 and facilitate the miniaturization of the touch device.

[0210] Referring again to Figures 19 and 20, in some embodiments, the pen tip holder 303 includes a first part 3031 and a second part 3032. Part of the second part 3032 slides within the first sliding channel 302, while part of the first part 3031 is located outside the sliding channel. The first part 3031 is connected to the conductive pen tip 20, and abuts against the second part 3032. With this configuration, when the centerline of the conductive pen tip 20 is inclined relative to the centerline of the first sliding channel 302, after the pressure on the pen tip holder 303 reaches a pre-pressure level, the first part 3031 and the second part 3032 slide relative to each other. This reduces the force between the second part 3032 and the first main holder 301 along a direction perpendicular to the centerline of the first sliding channel 302, preventing excessive friction between the second part 3032 and the first main holder 301 from causing jamming, and ensuring that the second part 3032 can smoothly retract into the first sliding channel 302.

[0211] In the above implementation, the first stop 306 is disposed at one end of the first main support 301 near the touch end, and the second stop 307 is disposed on the second part 3032, so that the first stop 306 and the second stop 307 abut against each other to limit the range of movement of the second part 3032 outward from the first sliding channel 302, so as to prevent the second part 3032 from moving outward from the first sliding channel 302 under the action of the first elastic member 304.

[0212] Referring again to Figures 19 and 20, exemplarily, the second part 3032 includes a tube body 3034 and abutment head 3035. Part of the tube body 3034 is slidably disposed within the first sliding channel 302. A second stop 307 is disposed on the tube body 3034. A third stop 3036 is disposed at the end of the tube body 3034 facing the touch terminal. Part of the abutment head 3035 is disposed within the tube body 3034. The remaining abutment head 3035 extends from the end of the tube body 3034 facing the touch terminal. A fourth stop 3037 is disposed on the abutment head 3035. The third stop 3036 contacts the fourth stop 3037 to prevent the abutment head 3035 from separating from the tube body 3034. The abutment head 3035 abuts against the first part 3031.

[0213] In the above example, the abutment head 3035 and the tube body 3034 can be an integral structure. Of course, the abutment head 3035 can also slide on the tube body 3034, or the abutment head 3035 can be connected to the tube body 3034 by welding, snap-fitting or other means. This application embodiment does not limit this.

[0214] Referring again to Figures 19 and 20, in some embodiments, the first portion 3031 is provided with a first abutment surface 3033. The first abutment surface 3033 is a spherical surface, and the center of the first abutment surface 3033 is located on the side of the first abutment surface 3033 opposite to the second portion 3032. The second portion 3032 abuts against the first abutment surface 3033. The first abutment surface 3033 is a spherical surface protruding towards the second portion 3032. When the second portion 3032 contacts the spherical surface, after the pressure on the conductive pen tip 20 exceeds the pre-pressure, the second portion 3032 slides on the first spherical surface, which can prevent the first portion 3031 and the second portion 3032 from getting stuck and ensure smooth movement.

[0215] For example, the center of the first contact surface 3033 can be located on the center line of the conductive pen tip 20 to ensure that the second part 3032 can contact the middle position of the first contact surface 3033 under normal use.

[0216] Referring again to Figures 19 and 20, in the above implementation, the touch device further includes a second elastic element 50. The second elastic element 50 is connected to the first part 3031 and the second main support 60. The second elastic element 50 applies a spring force to the first part 3031 and the second part 3032 so that the first part 3031 and the second part 3032 remain in contact, thereby preventing the first part 3031 and the conductive pen tip 20 from shaking relative to the housing 10.

[0217] Referring again to Figures 21 and 22, in some examples, the second elastic element 50 may include a second spring, which is sleeved on the first part 3031. The material of the first part 3031 includes a conductive material. The touch device also includes a first circuit 607, which is disposed on the second main support 60. The second spring is electrically connected to the control board through the first circuit 607. In other words, the conductive pen tip 20 is electrically connected to the control board through the first part 3031, the second spring, and the first circuit 607, which can simplify the structure of the touch device and facilitate the miniaturization of the touch device.

[0218] For example, the material of the first part 3031 may include metallic materials such as copper and aluminum. Of course, the material of the first part 3031 may also include non-metallic materials such as graphite. This application embodiment does not limit this.

[0219] In some examples, the first portion 3031 may be generally cylindrical, with a mounting hole 315 provided on it. One end of the mounting hole 315 facing the touch terminal is open, and the other end is closed. The conductive pen tip 20 can pass through the mounting hole 315 from the open end, and a retaining sleeve 201 of the conductive pen tip 20 can be connected to the mounting hole 315 to fix the conductive pen tip 20 to the first portion 3031. Exemplarily, the retaining sleeve 201 can be interference-fitted with the mounting hole 315. Of course, the retaining sleeve 201 can also be connected to the first portion 3031 by bolts, snap-fit, or other methods; this embodiment does not limit this.

[0220] In the example above, the conductive part 202 of the conductive pen tip 20 located in the mounting hole 315 is exposed outside the retaining sleeve 201 and contacts the first part 3031 to achieve an electrical connection between the conductive pen tip 20 and the first part 3031.

[0221] In some embodiments, the first line 607 includes a second connecting ring 6071 and a second wire 6072. The second connecting ring 6071 is disposed within the second sliding channel 601 and connected to the second main support 60. One end of the second spring abuts against the second connecting ring 6071, and the other end of the second spring is connected to the first portion 3031. The second wire 6072 is disposed on the second main support 60, with one end connected to the second connecting ring 6071 and the other end connected to the control board. The second spring contacts the second connecting ring 6071 to achieve an electrical connection between the second spring and the first line 607, which can increase the contact area between the second spring and the first line 607 and avoid poor contact.

[0222] In some implementations, the end of the first part 3031 facing the second part 3032 has a fifth stop 3038. In a plane perpendicular to the center line of the conductive pen tip 20, the projected area of ​​the fifth stop 3038 is larger than the projected area of ​​the remaining part of the first part 3031. The end of the second spring facing the touch end is connected to the second bracket, and the end of the second spring away from the touch end abuts against the fifth stop 3038. Furthermore, the abutment surface 3033 can be provided on the fifth stop 3038.

[0223] In the above implementation, a second sliding channel 601 is provided on the second main support 60, a collapsible structure is provided within the second sliding channel 601, and a step portion 608 is provided on the inner wall of the second sliding channel 601. The end of the second spring facing the touch end can abut against the step portion 608. Correspondingly, a second connecting ring 6071 can be provided on the step portion 608.

[0224] In this embodiment of the application, the second connecting ring 6071 and the second wire 6072 can be connected by welding. Of course, the second connecting ring 6071 and the second wire 6072 can also be an integral structure.

[0225] In some implementations, the second wire 6072 can extend beyond the second main bracket 60 and extend on the outer wall of the second main bracket 60 in a direction away from the touch terminal for electrical connection with the control board. For example, a second groove 6073 can be provided on the outer wall of the second main bracket 60, and the second wire 6072 can be accommodated within the second groove 6073, which can reduce the space occupied by the second wire 6072 and facilitate the miniaturization of the touch device.

[0226] In some embodiments, the touch device further includes a protective sleeve 110, which is disposed in the first accommodating cavity of the housing 10 and is sleeved on the outside of the second main support 60 and the third main support 70. The protective sleeve 110 can realize the connection between the second main support 60 and the third main support 70 and the housing 10.

[0227] In other embodiments, the detection electrode 605 may also be disposed on the outer surface of the housing 10. The corresponding detection electrode 605 may include a conductive film formed on the outer surface of the housing 10. The material of the conductive film may include metal or other non-metallic conductive materials, and this application embodiment does not limit this. Such a configuration can reduce the space occupied by the detection electrode 605 and facilitate miniaturization.

[0228] In the above embodiment, after the touch device is assembled, the first elastic element 304 is compressed, and the second elastic element 50 is also compressed. The elastic force of the first elastic element 304 is greater than that of the second elastic element 50, so that the conductive pen tip 20 remains extended. This ensures that the first elastic element 304 remains rigid during normal writing, and the conductive pen tip 20 will not move into the telescopic hole 102. For example, the elastic force of the first elastic element 304 can be, for example, 300gf-500gf (e.g., 300gf, 400gf, 500gf, etc.), and the elastic force of the second elastic element 50 can be, for example, 20gf-50gf (e.g., 20gf, 30gf, 50gf, etc.). The elastic force of the second elastic element 50 only needs to keep the first part 3031 in contact with the second part 3032.

[0229] Referring to Figure 24, this embodiment of the application also provides a method for determining the coding voltage, which can be applied to the device body in the above embodiments. The method includes:

[0230] S11: Determine the first control information based on the target device parameters of the device itself.

[0231] Before determining the first control information, the device body connects to the powered-on touch device wirelessly. For example, this wireless connection may include Bluetooth, Wi-Fi, etc., and this application embodiment does not limit this.

[0232] S12: Send the first control information to the touch device to instruct the touch device to determine the coding voltage based on the first control information.

[0233] For example, the coding voltage may include the voltage of the position signal transmitted by the conductive pen tip and the voltage of the detection signal transmitted by the detection electrode. Determining the coding voltage based on the first control information may involve determining the magnitude of the coding voltage based on the first control information.

[0234] The coding voltage determination method provided in this application embodiment involves the device body determining first control information based on target parameters, and then sending the first control information to the touch device. The touch device controls the magnitude of the coding voltage based on the received first control information, which can ensure that the coding voltage is not too large or too small.

[0235] Understandably, excessive coding voltage leads to higher power consumption and shorter standby time for touch devices. Insufficient coding voltage results in weaker signals transmitted between the touch device and the display panel of the device itself, making signal loss more likely and increasing the error rate.

[0236] In some embodiments, the target device parameters include at least one of the following: the position of the touch layer of the device body in the display panel of the device body; the hovering characteristics of the touch device; and the writing program running on the device body.

[0237] Understandably, a display panel generally consists of a stacked display layer, a touch layer, and a cover plate. In some display panels, the touch layer is located between the display layer and the cover plate, while in others, it is embedded within the display layer. The position of the touch layer within the display panel of the device itself can be either between the display layer and the cover plate or embedded within the display panel. The different positions of the touch layer affect the distance between it and the cover plate. When the touch layer is between the display panel and the cover plate, the distance between the touch layer and the touch device is smaller, allowing for a lower coding voltage (e.g., 40V). When the touch layer is embedded within the display layer, the distance between the touch layer and the cover plate is larger, requiring a higher coding voltage (e.g., 60V) for use when the touch device is in operation.

[0238] The hovering characteristic of a touch device indicates whether the device itself and the touch device support normal writing and interaction even when the conductive pen tip is not in contact with the display panel (the touch device hovers above the display panel). When hovering is supported, a larger coding voltage (e.g., 60V) is required to ensure a strong signal between the touch device and the touch layer, thus guaranteeing a low bit error rate. When hovering is not supported, a smaller coding voltage (e.g., 40V) can be used to reduce the power consumption of the touch device.

[0239] The writing program running on the device itself can be a pre-installed program designed to work with touch devices. The touch devices can then perform writing, drawing, and other operations based on this program. The device can store different coding voltages for different writing programs. The correspondence between the writing program and the coding voltage can be customized by the user or pre-set by the device itself. For example, some writing programs use a higher coding voltage (e.g., 60V), while others use a lower coding voltage (e.g., 40V).

[0240] In some embodiments, generating first control information based on target device parameters of the device body includes: determining a target voltage corresponding to the target device parameters based on a correspondence, wherein the correspondence is used to indicate the relationship between device parameters and voltage; and determining the target voltage as the first control information. That is, the device body directly sends the target voltage to the touch device, and the touch device adjusts the coding voltage to the target voltage. This configuration simplifies the processing of the first control information of the touch device and facilitates improved response speed.

[0241] For example, in the implementation of the target device parameters including the position of the touch layer in the display panel of the device body, the correspondence may include: if the touch layer is located between the display layer and the cover plate, a smaller target voltage is used; if the touch layer is embedded in the display panel, a larger target voltage is used. In the implementation of the target device parameters including the hovering characteristic of the touch device, the correspondence may include: if the touch device hovering is supported, a larger target voltage is used; if the touch device hovering is not supported, a smaller target voltage is used. In the implementation of the target device parameters including the writing program running on the device body, the correspondence may include: the correspondence between the writing program and the coding voltage, where some writing programs use a larger coding voltage (e.g., 60V), and some writing programs use a smaller coding voltage (e.g., 40V).

[0242] In other embodiments, generating the first control information based on the target device parameters of the device body includes: determining the target device parameters as the first control information. That is, the device body sends the target device parameters to the touch device, and the touch device determines the target voltage corresponding to the target device parameters based on a correspondence, and determines the target voltage as the coding voltage. This setup simplifies the device body's processing of the first control information.

[0243] The correspondence between the target device parameters and the target voltage is roughly the same as in the above embodiments, and will not be repeated here.

[0244] In this embodiment of the application, after sending the first control information to the touch device, the method further includes: receiving a target signal input by the touch device; determining the bit error rate based on the target signal; adjusting the first control information based on the bit error rate to obtain second control information; and sending the second control information to the touch device to instruct the touch device to adjust the coding voltage based on the second control information. During the writing process, the device body can continuously monitor the bit error rate between the touch device and the display panel. When the bit error rate is high, the second control information causes the touch device to increase the coding voltage (e.g., from 40V to 60V) to improve signal transmission accuracy and reduce the bit error rate, thus achieving dynamic adjustment of the coding voltage.

[0245] In some embodiments, after the device body sends the first control information to the touch device, the method further includes: the device body adjusting the first control information according to a preset rule to obtain third control information; and the device body sending the third control information to the touch device to instruct the touch device to adjust its main frequency based on the third control information. This configuration allows for dynamic adjustment of the touch device's main frequency. Increasing the main frequency can reduce the response latency between the touch device and the device body, but correspondingly increases the touch device's power consumption; conversely, decreasing the main frequency reduces the touch device's latency, but correspondingly increases the response latency between the touch device and the device body.

[0246] In some embodiments, the preset rules may include the writing program running on the device itself. Each writing program corresponds to a main frequency. Selecting the latency corresponding to the writing program can ensure that the latency is not too large or too small.

[0247] In some embodiments, the device body can obtain the response latency between the device body and the touch device, and each response latency corresponds to a main frequency.

[0248] In some embodiments, when the response delay between the device body and the touch device is greater than a set value, the main frequency is increased; when the response delay between the device body and the touch device is less than the set value, the main frequency is decreased. By reducing the main frequency while ensuring a low response delay between the device body and the touch device, the power consumption of the touch device can be reduced.

[0249] It is understood that the preset rules may include at least one of the rules mentioned above.

[0250] Referring to Figure 25, in other embodiments, this application also provides a method for determining the coding voltage, which can be applied to the touch device in any of the above embodiments. The method includes:

[0251] S21: Receive first control information sent by the device body, wherein the first control information is information determined by the device body based on the target device parameters of the device body.

[0252] Before receiving the first control information, the method further includes turning on the touch device and establishing a wireless connection between the touch device and the device body. For example, the wireless connection may include Bluetooth, Wi-Fi, etc., and this application embodiment does not limit this.

[0253] S22: Determine the coding voltage based on the first control information.

[0254] For example, the coding voltage may include the voltage of the position signal transmitted by the conductive pen tip and the voltage of the detection signal transmitted by the detection electrode. Determining the coding voltage based on the first control information may involve determining the magnitude of the coding voltage based on the first control information.

[0255] The coding voltage determination method provided in this application embodiment involves a touch device receiving first control information, which is determined by the device body based on target parameters. The device body then sends the first control information to the touch device, and the touch device controls the coding voltage based on the received first control information, thereby ensuring that the coding voltage is not too high or too low.

[0256] Understandably, excessive coding voltage leads to higher power consumption and shorter standby time for touch devices. Insufficient coding voltage results in weaker signals transmitted between the touch device and the display panel of the device itself, making signal loss more likely and increasing the error rate.

[0257] In some embodiments, the target device parameters include at least one of the following: the position of the touch layer of the device body in the display panel of the device body; the touch and hovering characteristics of the device; and the writing program running on the device body.

[0258] Understandably, a display panel typically comprises a stacked display layer, a touch layer, and a cover plate. In some display panels, the touch layer is positioned between the display layer and the cover plate, while in others, it is embedded within the display layer. The position of the touch layer within the display panel of the device itself can be either between the display layer and the cover plate or embedded within the display layer. The different positions of the touch layer affect the distance between it and the cover plate. When the touch layer is between the display panel and the cover plate, the distance between the touch layer and the touch device is smaller, allowing for a lower coding voltage (e.g., 40V). When the touch layer is embedded within the display layer, the distance between the touch layer and the cover plate is larger, requiring a higher coding voltage (e.g., 60V) for use when the touch device is in operation.

[0259] The hovering characteristic of a touch device indicates whether the touch layer supports normal writing and interaction even when the stylus tip is not in contact with the display panel (the touch device hovers above the display panel). When hovering is supported, a higher coding voltage (e.g., 60V) is required to ensure a strong signal between the touch device and the touch layer, thus guaranteeing a low bit error rate. When hovering is not supported, a lower coding voltage (e.g., 40V) can be used to reduce the power consumption of the touch device.

[0260] The writing program running on the device itself can be a pre-installed program for use with touch devices. The device itself can store different coding voltages for different writing programs. The correspondence between the writing program and the coding voltage can be customized by the user or pre-set by the device itself. For example, some writing programs use a larger coding voltage (e.g., 60V), while others use a smaller coding voltage (e.g., 40V).

[0261] In some embodiments, the touch device determining the coding voltage based on the first control information includes: determining a target voltage included in the first control information; and determining the target voltage as the coding voltage. That is, the device body directly sends the target voltage to the touch device, and the touch device adjusts the coding voltage to the target voltage. This configuration simplifies the processing of the first control information of the touch device and facilitates improved response speed.

[0262] In other embodiments, the touch device determining the coding voltage based on the first control information includes: parsing the target device parameters included in the first control information; and determining the coding voltage based on the target device parameters. That is, the touch device parses the first control information and obtains the target device parameters, determines the target voltage corresponding to the target device parameters based on the correspondence, and determines the target voltage as the coding voltage. This configuration simplifies the device's processing of the first control information.

[0263] For example, in the implementation of the target device parameters including the position of the touch layer in the display panel of the device body, the correspondence may include: if the touch layer is located between the display layer and the cover plate, a smaller target voltage is used; if the touch layer is embedded in the display layer, a larger target voltage is used. In the implementation of the target device parameters including the hovering characteristic of the touch device, the correspondence may include: if the touch device hovering is supported, a larger target voltage is used; if the touch device hovering is not supported, a smaller target voltage is used. In the implementation of the target device parameters including the writing program running on the device body, the correspondence may include: the correspondence between the writing program and the coding voltage, where some writing programs use a larger coding voltage (e.g., 60V), and some writing programs use a smaller coding voltage (e.g., 40V).

[0264] In this embodiment of the application, after determining the coding voltage based on the first control information, the method further includes: receiving second control information sent by the device body, wherein the second control information is information obtained by the device body based on adjusting the first control information according to the bit error rate, and the bit error rate is determined by the device body based on receiving the target signal input by the touch device; adjusting the coding voltage based on the second control information. During the writing process, the device body can continuously monitor the bit error rate between the touch device and the display panel. When the bit error rate is high, the second control information causes the touch device to increase the coding voltage (e.g., from 40V to 60V) to improve signal transmission accuracy and reduce the bit error rate, thereby achieving dynamic adjustment of the coding voltage.

[0265] Figure 26 is a connection diagram of the touch device provided in an embodiment of this application. Referring to Figure 26, the touch device also includes a control unit 111 and a signal processing unit 112. The control unit 111 is connected to the signal processing unit 112. The signal processing unit 112 is electrically connected to the conductive pen tip 20 through a first line 607, and the signal processing unit 112 is also electrically connected to the detection electrode 605 through a second line 609. The control unit 111 may include a microcontroller unit (MCU) or other unit with signal processing and calculation capabilities. The signal processing unit 112 may include a coding chip (coding IC). The control unit 111 sends a coding voltage to the coding chip, and the coding chip sends a signal with the coding voltage to the detection electrode 605 and the conductive pen tip 20.

[0266] Figure 27 is a schematic diagram of the connection between the device body and the control unit in an embodiment of this application, and Figure 28 is a flowchart of the operation of the electronic device provided in an embodiment of this application. Referring to Figures 27 and 28, when the electronic device is in use, the touch device is first turned on, and then the device body is connected to the touch device. That is, the device body 1 and the control unit 111 of the touch device can be connected wirelessly via Bluetooth, WIFI, or other means. The device body sends first control information, and the touch device receives the first control information. For example, the control unit 111 receives the first control information and determines the coding voltage according to the first control information. Then, it sends the coding voltage to the signal processing unit 112, and the signal processing unit 112 sends a signal with the coding voltage to the conductive pen tip and the detection electrode.

[0267] In other embodiments, this application also provides a method for determining the coding voltage, which can be applied to the touch device and the touch device in any of the above embodiments. The coding voltage determination method in this embodiment is generally similar to the coding voltage determination method in the above embodiments, and will not be described again here.

[0268] The above description is merely a specific implementation of the embodiments of this application, but the protection scope of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims

1. A collapse structure for a touch device, comprising: include: A first main support, the first main support having a first sliding channel; A pen tip holder, part of which is slidably disposed within the first sliding channel, is used to connect to the conductive pen tip of a touch control device; A first elastic element is disposed within the first sliding channel and is connected to the pen tip support. The first elastic element is used to allow a portion of the pen tip support to extend outside the first sliding channel, and when the pen tip support is subjected to pressure from the conductive pen tip to reach a pre-pressure, the pen tip support moves into the first sliding channel.

2. The collapse structure of claim 1, wherein, When the pressure from the conductive pen tip on the pen tip holder does not reach the pre-pressure, the first elastic element keeps a portion of the pen tip holder extended outside the first sliding channel.

3. The collapse structure of claim 1 or 2, wherein, The pen tip holder includes a first part and a second part. The second part is partially slidably disposed within the first sliding channel, while the first part is located outside the sliding channel. The first part is used to connect the conductive pen tip, and the first part abuts against the second part.

4. The collapse structure of claim 3, wherein, The first part is provided with a first abutting surface, which is a spherical surface. The center of the sphere of the first abutting surface is located on the side of the first abutting surface away from the second part, and the second part abuts against the first abutting surface.

5. A touch device, comprising: include: The outer casing has a first accommodating cavity, and the touch terminal of the outer casing is provided with a telescopic hole communicating with the first accommodating cavity; A conductive pen tip, wherein the conductive pen tip is disposed in the telescopic hole; Collapse structure, the collapse structure comprising: A first main support, the first main support having a first sliding channel, the first main support being disposed within the first accommodating cavity; A pen tip holder, part of which is slidably disposed within the first sliding channel, and the conductive pen tip is connected to the pen tip holder; A first elastic element is disposed within the first sliding channel and connected to the pen tip support. The first elastic element is used to allow a portion of the conductive pen tip to extend outside the telescopic hole, and to allow the conductive pen tip to move into the telescopic hole when the pressure on the conductive pen tip reaches a pre-pressure. 6.The touch device of claim 5, wherein, When the pressure from the conductive pen tip on the pen tip holder does not reach the pre-pressure, the first elastic element keeps a portion of the pen tip holder extended outside the first sliding channel.

7. The touch device according to claim 5 or 6, wherein, The first elastic element is configured to allow the tip of the conductive pen tip to retract into the telescopic hole when the conductive pen tip is subjected to a pressure greater than or equal to the upper limit.

8. The touch control device according to any one of claims 5-7, wherein, The touch device further includes a second main support, which is disposed within the first accommodating cavity. The second main support has a second sliding channel, and the collapsible structure is disposed within the second sliding channel.

9. The touch device of claim 8, wherein, The touch device further includes a detection electrode disposed at one end of the second main bracket near the touch end. The detection electrode is configured to have an angle detection signal, which is acquired by the display panel of the electronic device so that the electronic device can generate the angle between the center line of the conductive pen tip and the display panel. 10.The touch device of claim 9, wherein, The detection electrode includes a fixed part and an extension part. The fixed part is connected to the second main bracket, and the extension part extends toward the touch terminal. The detection electrode is provided with a first through hole that penetrates the fixed part and the extension part, and part of the conductive pen tip passes through the first through hole.

11. The touch device of claim 10, wherein, The fixing part is connected to the second main bracket through a fixing groove and a fixing block, and the fixing block is located in the fixing groove.

12. The touch control device according to any one of claims 9-11, wherein, The touch device also includes a second circuit and a control board. The second circuit is mounted on the second main bracket. One end of the second circuit is connected to the detection electrode, and the other end of the second circuit is electrically connected to the control board.

13. The touch device of claim 12, wherein, The second circuit includes a first connecting ring and a first wire. The first connecting ring is sleeved on the detection electrode, and the first wire is disposed on the second main support. One end of the first wire is connected to the first connecting ring, and the other end of the first wire is electrically connected to the control board.

14. The touch control device according to any one of claims 8-13, wherein, The pen tip holder includes a first part and a second part. The second part is partially slidably disposed within the first sliding channel, while the first part is located outside the first sliding channel. The first part is connected to the conductive pen tip, and the first part abuts against the second part.

15. The touch device of claim 14, wherein, The first part is provided with a first abutting surface, which is a spherical surface. The center of the sphere of the first abutting surface is located on the side of the first abutting surface away from the second part, and the second part abuts against the first abutting surface.

16. The touch device according to claim 14 or 15, wherein, The touch device further includes a second elastic element, which is connected to the first part and the second main support, and is used to keep the first part in contact with the second part.

17. The touch device of claim 16, wherein, The second elastic element includes a second spring, which is sleeved on the first part, and the material of the first part includes a conductive material; The touch device also includes a first circuit and a control board. The first circuit is mounted on the second main bracket, and the second spring is electrically connected to the control board through the first circuit.

18. The touch device of claim 17, wherein, The first circuit includes a second connecting ring and a second wire. The second connecting ring is disposed in the second sliding channel and is connected to the second main support. One end of the second spring abuts against the second connecting ring, and the other end of the second spring is connected to the first part. The second wire is disposed on the second main support. One end of the second wire is connected to the second connecting ring, and the other end of the second wire is connected to the control board.

19. An electronic device, comprising: include: The display panel and the touch device according to any one of claims 5-18, the display panel including a touch structure configured to detect the position of the conductive pen tip of the touch device.

20. A method for determining coding voltage, applied to both the device body and the touch device, characterized in that, include: The device body determines the first control information based on the target device parameters of the device body; The device body sends the first control information to the touch device to instruct the touch device to determine the coding voltage based on the first control information.

21. The method of claim 20, wherein, The device body generates first control information based on the target device parameters of the device body, including: The device body determines the target voltage corresponding to the target device parameters based on the correspondence relationship, wherein the correspondence relationship is used to indicate the relationship between the device parameters and the voltage; The device body determines the target voltage as the first control information.

22. The method of claim 21, wherein, The device body generates first control information based on the target device parameters of the device body, including: The device body determines the target device parameters as the first control information.

23. The method of any one of claims 20 to 22, wherein, The target device parameters include at least one of the following: The location of the touch layer of the device body in the display panel of the device body; The levitation characteristics of the touch device; The writing program runs on the device itself.

24. The method according to any one of claims 20 to 23, characterized in that, After the device body sends the first control information to the touch device, the method further includes: The device body receives the target signal input by the touch device; The device body determines the bit error rate based on the target signal; The device body adjusts the first control information based on the bit error rate to obtain the second control information; The device body sends the second control information to the touch device to instruct the touch device to adjust the coding voltage based on the second control information.

25. The method according to any one of claims 20 to 24, characterized in that, After the device body sends the first control information to the touch device, the method further includes: The device body adjusts the first control information according to a preset rule to obtain the third control information; The device body sends the third control information to the touch device to instruct the touch device to adjust the main frequency based on the third control information.

26. The method of claim 25, wherein, The preset rules include at least one of the following: The writing program running on the device body, each of the writing programs corresponds to one of the main frequencies; The response delay between the device body and the touch device, each of the response delays corresponds to a main frequency; When the response delay between the device body and the touch device is greater than a set value, the main frequency is increased; when the response delay between the device body and the touch device is less than the set value, the main frequency is decreased. 27.A method for determining a firing voltage, applied to a touch device, the method comprising: include: The device receives first control information sent by the device body, wherein the first control information is information determined by the device body based on the target device parameters of the device body; The coding voltage is determined based on the first control information.

28. The method of claim 27, wherein, Determining the coding voltage based on the first control information includes: Determine the target voltage included in the first control information; The target voltage is determined as the coding voltage.

29. The method of claim 28, wherein, Determining the coding voltage based on the first control information includes: Parse the target device parameters included in the first control information; The coding voltage is determined based on the target device parameters.

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