WO2022052577A1 - 触控笔及其笔尖保护装置、电子设备 - Google Patents

触控笔及其笔尖保护装置、电子设备 Download PDF

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Publication number
WO2022052577A1
WO2022052577A1 PCT/CN2021/102852 CN2021102852W WO2022052577A1 WO 2022052577 A1 WO2022052577 A1 WO 2022052577A1 CN 2021102852 W CN2021102852 W CN 2021102852W WO 2022052577 A1 WO2022052577 A1 WO 2022052577A1
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WO
WIPO (PCT)
Prior art keywords
pen tip
stylus
pen
protection device
reminder
Prior art date
Application number
PCT/CN2021/102852
Other languages
English (en)
French (fr)
Inventor
张健民
叶成亮
肖栋林
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2022052577A1 publication Critical patent/WO2022052577A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03545—Pens or stylus
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/039—Accessories therefor, e.g. mouse pads
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/21—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads

Definitions

  • the present application relates to the technical field of electronic equipment, and in particular, to a stylus pen, a pen tip protection device thereof, and electronic equipment.
  • An embodiment of the present application provides a pen tip protection device applied to a stylus, wherein the pen tip protection device is configured to be able to be installed on the pen tip of the stylus, and includes a protective cover and a protective cover at least partially covered by the protective cover.
  • Reminder which can be revealed after the protective cover is worn.
  • Embodiments of the present application further provide a stylus, wherein the stylus includes a pen holder, a pen tip and a pen tip protection device, the pen tip is connected to the pen holder, the pen tip protection device is installed on the pen tip, and includes a protective cover and at least a part of a protective device. Reminders covered by a protective cover, the reminders can be revealed after the protective cover is worn.
  • the embodiment of the present application further provides an electronic device, wherein the electronic device includes a display module, a casing and the above-mentioned stylus, the display module is assembled and connected to the casing, and the stylus is configured to be able to interact with the display module .
  • the pen tip protection device provided by the present application can be installed on the pen tip of the stylus, so as to facilitate the interaction between the stylus pen and the display module of the electronic device, because the pen tip protection device is provided with a reminder, and The reminder can be revealed after the protective cover is worn to remind the user, thereby preventing the tip of the stylus from scratching the display module.
  • FIG. 1 is a schematic structural diagram of an embodiment of an electronic device provided by the present application.
  • FIG. 2 is a schematic structural diagram of another embodiment of an electronic device provided by the present application.
  • FIG. 3 is a schematic diagram of a stacked structure of an embodiment of the display module described in the present application.
  • FIG. 4 is a schematic structural diagram of an embodiment of the stylus described in the present application.
  • 5 is a schematic structural diagram of the connection relationship between the protective cover and the pen tip described in the present application.
  • FIG. 6 is a schematic structural diagram of an embodiment of a pen tip protection device provided by the present application.
  • FIG. 7 is a schematic structural diagram of another embodiment of the pen tip protection device provided by the present application.
  • FIG. 9 is a schematic structural diagram of another embodiment of the pen tip protection device provided by the present application.
  • FIG. 10 is a schematic structural diagram of another embodiment of the pen tip protection device in FIG. 9;
  • FIG. 11 is a schematic structural diagram of another embodiment of the pen tip protection device in FIG. 9;
  • FIG. 12 is a schematic structural diagram of still another embodiment of the pen tip protection device provided by the present application.
  • An embodiment of the present application provides a pen tip protection device applied to a stylus, the pen tip protection device is configured to be able to be installed on the pen tip of the stylus pen, and includes a protective cover and a protective cover at least partially covered by the protective cover Covered reminder that can be revealed after the protective cover is worn.
  • the reminder is a colored substance.
  • the colored substance includes at least one of colored liquid and colored powder.
  • the reminder includes an ink bag, and the ink bag is filled with colored liquid.
  • the Mohs hardness of the protective cover is less than or equal to 1.5.
  • the material of the protective cover is any one of thermoplastic polyurethane, polyimide, silica gel, and rubber.
  • the minimum distance between the reminder and the outer surface of the protective cover is in the range of 0.1 mm to 0.5 mm.
  • the protective cover includes a soft part and a hard part that are integrally connected, the Mohs hardness of the hard part is greater than the Mohs hardness of the soft part, and the Mohs hardness of the soft part is less than or equal to 1.5, the hard part is configured to be able to be installed on the tip of the stylus, the reminder is at least partially covered by the soft part, and can be revealed after the soft part is worn.
  • the pen tip protection device is detachably connected to the pen tip of the stylus.
  • the protective cover is provided with a blind hole along its axial direction, so that the pen tip protection device is installed on the pen tip of the stylus through the blind hole; compared with the entrance of the blind hole, The reminder is closer to the bottom of the blind hole.
  • the orthographic projection of the blind hole on the reference plane perpendicular to the axis direction falls within the orthographic projection of the reminder on the reference plane.
  • the reminder surrounds the bottom of the blind hole.
  • the reminder surrounds the bottom of the blind hole.
  • the blind hole has a first hole section and a second hole section that communicate with each other, the first hole section is closer to the reminder than the second hole section, and the inner wall of the first hole section is spherical , the orthographic projection of the second hole segment on the reference plane perpendicular to the axis direction falls within the orthographic projection of the first hole segment on the reference plane.
  • the blind hole further has a limit section located in the second hole section, and the cross-sectional area of the limit section on a reference plane perpendicular to the axis direction is larger than that of the second hole section in the The cross-sectional area on the reference plane.
  • the embodiment of the present application further provides a stylus, the stylus includes a pen holder, a pen tip and a pen tip protection device, the pen tip is connected to the pen holder, the pen tip protection device is installed on the pen tip, and A protective cover and a reminder at least partially enclosed by the protective cover are included, the reminder can be revealed after the protective cover is worn.
  • the protective cover is provided with a blind hole along its axis direction, the pen tip is inserted in the blind hole, and the end of the pen tip is in contact with the reminder or the end of the pen tip is in contact with the reminder There is a gap between them.
  • the pen holder forms an accommodation cavity
  • the pen tip is a conductor
  • the stylus further includes a control circuit disposed in the accommodation cavity
  • the pen tip is coupled to the control circuit
  • the stylus further includes an annular electrode, which is sleeved on the pen tip and coupled to the control circuit, and the annular electrode is insulated from the pen tip.
  • An embodiment of the present application further provides an electronic device, the electronic device includes a display module, a housing, and the stylus described in the above embodiments, the display module is assembled and connected to the housing, and the touch The stylus is configured to interact with the display module.
  • the display module is a flexible display screen.
  • the stylus is detachably connected to the housing.
  • FIG. 1 is a schematic structural diagram of an embodiment of an electronic device provided by the present application
  • FIG. 2 is a structural schematic diagram of another embodiment of the electronic device provided by the present application
  • FIG. 3 is a display described in the present application.
  • the electronic device 10 may be a portable device such as a mobile phone, a tablet computer, a notebook computer, and an electronic drawing board.
  • the embodiments of the present application take the electronic device 10 as a mobile phone as an example for illustrative description.
  • the electronic device 10 may include a display module 12 and a casing 14 .
  • the display module 12 can be assembled and connected to the housing 14 by one or a combination of assembly methods such as clamping, gluing, and welding.
  • structural components such as a battery module, an antenna module, a camera module, a fingerprint module and the like can also be arranged inside the electronic device 10 (specifically, the accommodating cavity formed between the display module 11 and the housing assembly 13 ). (not shown in FIG. 1 and FIG. 2 ), so that the electronic device 10 can implement other corresponding functions, so as to meet the usage requirements of the user.
  • the display module 12 may be a display screen such as an LCD (Liquid Crystal Display), or a display screen such as an OLED (Organic Light-Emitting Diode), a QLED (Quantum Dot Light Emitting Diode), or It is a display such as Mini-LED and Micro-LED.
  • the display module 12 is an OLED display screen as an example for illustrative description.
  • the display module 12 may include a display panel 122 , a circular polarizer 124 and a transparent cover plate 126 which are stacked in sequence, and optical adhesive (OCA) may be used between them.
  • OCA optical adhesive
  • the transparent cover plate 126 is farther away from the casing 14 than the display panel 122 .
  • the transparent cover plate 126 can be used to protect the display panel 122 and has an outer surface that can be used as the electronic device 10 to facilitate the user to perform touch operations such as clicking, sliding, pressing, and the like.
  • the circular polarizer 124 is mainly used to reduce or even eliminate the reflection of the external ambient light by the display panel 122 to increase the contrast ratio of the display module 12 .
  • the display panel 122 is mainly used to enable the display module 12 to display images, and can be used as an interactive interface to instruct the user to perform the aforementioned touch operations on the transparent cover 126 .
  • the transparent cover plate 126 may be made of materials such as glass (Glass), so that the display module 12 can be used as a rigid display screen.
  • the transparent cover 126 may be made of flexible materials such as polyimide (PI), colorless polyimide (CPI), and ultra-thin flexible glass (UTG). It is made so that the display module 12 can be used as a flexible display screen.
  • PI polyimide
  • CPI colorless polyimide
  • UTG ultra-thin flexible glass
  • the display module 12 can be used as a flexible display screen.
  • the electronic device 10 when the display module 12 is a rigid display screen, the electronic device 10 can correspond to a candy bar phone (not foldable), as shown in FIG. 1; and when the display module 12 is a flexible display When the screen is displayed, the electronic device 10 may correspond to a foldable mobile phone, as shown in FIG. 2 .
  • the Mohs hardness of the transparent cover plate 126 is generally greater than 8; and when the display module 12 is a flexible display screen, the Mohs hardness of the transparent cover plate 126 is generally less than 2.
  • the difference between the rigid display screen and the flexible display screen should not be limited to the difference between the Mohs hardness of the transparent cover plate 126 , but can also be expressed as the elastic modulus, thickness and other parameters of the transparent cover plate 126 . The difference between them can also be expressed as the difference between the stiffness of the display panel 122 , the circular polarizer 124 , the colloid 128 and other structures. In other words, the Mohs hardness of the transparent cover plate 126 is only a performance indicator in one dimension.
  • the display module 12 can be a capacitive screen, the specific structure of which is well known to those skilled in the art, and will not be repeated here.
  • the data parameters such as the capacitance and its distribution on the display module 12 will change accordingly, and the electronic device 10 can collect and The above data parameters are operated to realize the interaction with the user.
  • the electronic device 10 may further include a stylus 100 .
  • the stylus 100 is configured to be able to interact with the display module 12 , so as to replace the user's fingers to interact with the electronic device 10 .
  • the user may perform touch operations such as writing and drawing on the electronic device 10 through the stylus 100 .
  • the stylus 100 may have a thinner tip, at least much thinner than the user's finger, the user can perform touch operations such as writing and drawing on the electronic device 10 with higher accuracy, and furthermore Helps improve the user experience.
  • the stylus 100 can be detachably connected to the housing 14 to prevent the stylus 100 from being lost.
  • the electronic device 10 is provided with a receiving cavity 16 , and the stylus 100 can be inserted into the receiving cavity 16 .
  • FIG. 4 is a schematic structural diagram of an embodiment of the touch pen described in the present application.
  • the touch pen 100 may be any one of an inductive pen, a passive capacitive pen, and an active capacitive pen to simulate a user's finger.
  • the inductive pen is mainly based on the electromagnetic induction input technology (Electro-Magnetic Resonance, EMR)
  • the passive capacitive pen is mainly based on the passive electrostatic induction technology (Passive Electrostatic Solution, PES)
  • the active capacitive pen is mainly based on the active electrostatic induction technology (Active Electrostatic Solution, PES). Electrostatic Solution, AES).
  • the embodiments of the present application take the stylus 100 as an active capacitive pen as an example for illustrative description.
  • the stylus 100 may include a pen holder 101 and a pen tip 102 .
  • the pen tip 102 is connected with the pen barrel 101; the pen tip 102 may be a conductor (for example, it is made of metal material, conductive plastic, etc.), and the pen barrel 101 may also have a certain conductivity.
  • the pen tip 102 may partially extend out of the pen holder 101 and may be much thinner than the pen holder 101 to increase the accuracy of the interaction between the stylus 100 and the display module 12 .
  • both the pen tip 102 and the pen holder 101 may be insulators.
  • the pen holder 101 is formed with a receiving cavity 103 .
  • the stylus 100 may further include a control circuit 104 disposed in the receiving cavity 103, and the control circuit 104 is coupled with the pen tip 102 to form an active capacitive pen.
  • the control circuit 104 may include a force gauge (Force Gauge) 1041, an inertial measurement unit (IMU) 1042, a processor (Microcontroller Unit, MCU) 1043, an excitation circuit (Excitation Circuits) 1044, a buffer Buffer 1045 , Mixer 1046 , Side Electrode 1047 , Battery 1048 and Conductive Eraser 1049 .
  • Force gauge Force gauge
  • IMU inertial measurement unit
  • MCU Microcontroller Unit
  • the battery 1048 can supply energy for the control circuit 104; the side electrode 1047 can realize the on-off of the control circuit 104.
  • the pen tip 102 , the buffer 1045 , the mixer 1046 , and the excitation circuit 1044 are coupled in sequence, so that the processor 1043 controls the excitation circuit 1044 to apply an excitation signal to act on the display module 12 , thereby changing the capacitance on the display module 12
  • the electronic device 10 can collect and operate the data parameters such as the size and its distribution to realize the interaction between the two.
  • the pen tip 102 can be in contact with the dynamometer 1041 , and the dynamometer 1041 can cooperate with the inertial measurement unit 1042 so that the processor 1043 can calculate the magnitude of the force exerted by the stylus 100 on the display module 12 .
  • the stylus 100 may further include a return spring 105 sleeved on the tip 102 to increase the reliability and writing feel of the stylus 100 .
  • the conductive eraser 1049 is coupled to the excitation circuit 1044 to realize the function of erasing.
  • the stylus 100 may further include an annular electrode 106 .
  • the annular electrode 106 is sleeved on the pen tip 102 and is coupled to the control circuit 104 , and the annular electrode 106 is insulated from the pen tip 102 .
  • the annular electrode 106 can be coupled with the buffer 1045, the mixer 1046, and the excitation circuit 1044 in sequence, so that the processor 1043 controls the excitation circuit 1044 to apply an excitation signal to act on the display module 12, thereby changing the display module.
  • the electronic device 10 can collect and operate the data parameters such as the capacitance size and its distribution on the group 12 to realize the interaction between the two.
  • the pen tip 102 and the display module 12 can form a first touch signal
  • the annular electrode 106 and the display module 12 can form a second touch signal
  • the second touch The signal can cooperate with the first touch signal to increase the positioning accuracy of the stylus 100 on the display module 12
  • the second touch signal can further realize the inclination angle of the stylus 100 relative to the display module 12 .
  • the annular electrode 106 can be sleeved on the pen holder 101 and can be partially exposed. At this time, since the annular electrode 106 can be made of a metal material, so that it has a certain metallic luster, it can play a certain decorative role on the stylus 100 .
  • stylus pens are generally divided into two categories: hard pens and soft pens.
  • the main difference between the two is that the Mohs hardness of the nib of the hard pens is greater than that of the soft pens. of Mohs hardness.
  • hard pens are more wear-resistant than soft pens, but have a poor writing feel (like a ballpoint pen writing on glass); soft pens have a much better writing feel than hard pens, but are less wear-resistant.
  • the display module 12 is generally a flexible display screen; specifically, the Mohs hardness of the transparent cover plate 126 is generally less than 2.
  • the Mohs hardness of the transparent cover plate 126 is relatively low, which can naturally provide a better writing feel; at the same time, the display module 12 is also easily scratched by the stylus, which is fatal to the electronic device 10 . of.
  • the tip of the soft pen will also wear relatively seriously due to the large friction coefficient between the soft pen and the flexible display screen.
  • the display module 12 is built-in, commonly known as an "inner folding screen", or the display module 12 is displayed externally, commonly known as an "outer folding screen”.
  • the bending radius of the display module 12 can be relatively large, so that the Mohs hardness of the transparent cover 126 can be relatively large, and the display module 12 can be relatively large. It is relatively difficult to be scratched; and when the foldable mobile phone corresponds to an inner folding screen, the bending radius of the display module 12 is relatively smaller, so that the Mohs hardness of the transparent cover 126 is relatively smaller, and the display module 12 is relatively easier to be scratched. hurt.
  • Stylus Inner folding screen External folding screen soft pen 500g scratches 1kg has scratches hard pen 350g scratches 800g scratches
  • an inventive concept of the present application may be: a protective cover 201 is provided on the pen tip 102, and the Mohs hardness of the protective cover 201 is smaller than that of the pen tip 102, so as to improve the writing feel of the stylus 100 and the protective cover 201 is configured to be replaceable after wear, thereby prolonging the service life of the stylus 100 .
  • the scratches formed by the stylus on the display module 12 are irreversible, and the replacement cost of the display module 12 is much higher than the replacement cost of the protective cover 201 , by sacrificing the protective cover 201 This method can ensure the reliability of the display module 12 to the greatest extent possible.
  • the connection relationship between the protective cover 201 and the pen tip 102 can be roughly divided into two categories, as shown in FIG. 5( a ) or FIG. 5( c )
  • the protective cover 201 can be embedded in the pen nib 102, or the pen nib 102 can be embedded in the protective cover 201;
  • the flush type shown in FIG. 5(b) means that the protective cover 201 is not embedded in the pen nib 102, The nib 102 is also not embedded in the protective cover 201 .
  • a reminder 202 is provided to remind the user after the protective cover 201 is worn to a certain extent, thereby preventing the pen tip 102 from scratching the display module 12, and the user can also replace the protective cover 201 in time .
  • the above-mentioned wear to a certain extent may mean that the part of the protective cover 201 exposed outside the pen tip 102 is worn off by 3/4; for the connection shown in FIG. 5(b)
  • the above-mentioned wear to a certain degree may mean that the protective cover 201 is worn away by 3/4; for the connection relationship shown in FIG. .
  • FIG. 6 is a schematic structural diagram of an embodiment of the pen tip protection device provided by the present application
  • FIG. 7 is a structural schematic diagram of another embodiment of the pen tip protection device provided by the present application
  • the pen tip protection device 200 can be applied to the stylus 100, and can be assembled with the pen tip 102 through any of the connection relationships shown in FIG. 5 .
  • the pen tip protection device 200 is configured to be able to be mounted on the stylus 100 (specifically, the pen tip 102 thereof).
  • the connection relationship between the pen tip protection device 200 shown in FIG. 6 and the pen tip 102 may be as shown in FIG. 5( b ), and the connection relationship between the pen tip protection device 200 shown in FIG. 7 and the pen tip 102 may be shown in FIG. 5 (a).
  • the dot-dash line 2013 in FIGS. 6 and 7 can be simply regarded as the axial direction of the pen tip protection device 200, and can also be simply regarded as the axial direction of the pen tip 102.
  • the pen tip protection device 200 may include a protective cover 201 and a reminder 202 at least partially covered by the protective cover 201 .
  • the reminder 202 can be revealed after the protective cover 201 is worn.
  • the reminder 202 can play a role of reminding the user, thereby preventing the pen tip 102 from scratching the display module 12 .
  • the pen tip protection device 200 is detachably connected to the stylus 100 so as to be replaced after the protective cover 201 is worn until the reminder 202 is exposed, thereby prolonging the service life of the stylus 100 .
  • the reminder 202 shown in FIG. 6 is completely covered by the protective cover 201, in conjunction with FIG. 5(b) and FIG. It is the reminder 202 that is partially covered by the protective cover 201 .
  • a part of the reminder 202 can be in contact with the pen tip 102 , and the other part is covered by the protective cover 201 .
  • the user can know the color, shape and other parameters of the reminder 202 before using the pen tip protection device 200, so as to give himself psychological hints, and then can quickly detect the reminder 202 after the protective cover 201 is worn until the reminder 202 is exposed. Reminder to yourself.
  • the Mohs hardness of the protective cover 201 can be less than or equal to 1.5; preferably, it can be less than or equal to 1, which can not only improve the writing feel of the stylus 100, but also prevent the pen tip protection device 200 from scratching the display mold.
  • the material of the protective cover 201 may be any one of thermoplastic polyurethane (Thermoplastic Urethane, TPU), polyimide, silica gel, and rubber.
  • the protective cover 201 may include a soft part 2011 and a hard part 2012 that are integrally connected, for example, the two are formed by a two-color injection molding process.
  • the Mohs hardness of the hard portion 2012 is greater than the Mohs hardness of the soft portion 2011
  • the Mohs hardness of the soft portion 2011 is less than or equal to 1.5.
  • the hard part 2012 is configured to be able to be installed on the stylus 100 , and the reminder 202 is at least partially covered by the soft part 2011 and can be exposed after the soft part 2011 is worn.
  • the reminder 202 may be completely covered by the soft part 2011 , or may be partially covered by the soft part 2011 and the other part may be covered by the hard part 2012 .
  • the pen tip protection device 200 when the pen tip protection device 200 is embedded in the pen tip 102 , the hard part 2012 is embedded in the pen tip 102 to increase the reliability of the connection between the two, and the soft part 2011 protrudes beyond the pen tip 102 . In order to facilitate the stylus 100 to perform the above touch operation.
  • the reminder 202 may be a colored substance.
  • the color of the reminder 202 may be a more eye-catching color such as black, red, and green.
  • the colored substance may include at least one of colored liquid and colored powder.
  • the colored substance may also include any one or a combination of colored wax, graphite and other blocks. At this time, after the protective cover 201 is worn to a certain extent, the reminder 202 is exposed.
  • the stylus 100 is continued to be used, a certain amount of reminder 202 will be adhered to the display module 12, which can also achieve the purpose of reminding the user to replace.
  • aromatic (or irritating) and non-toxic substances can also be mixed into the colored substances, so as to provide auxiliary reminders from the sense of smell.
  • the reminder 202 may include an ink bag 2021 , and a colored liquid 2022 is installed in the ink bag 2021 .
  • the ink bag 2021 may be a thin film, and the colored liquid 2022 may be ink.
  • colored powder may also be installed in the ink bag 2021 .
  • This setting is mainly for the convenience of wrapping the reminder 202 in the protective cover 201 .
  • the protective cover 201 can be formed with a part (eg, half) first, then the reminder 202 is placed therein, and then another part (eg, the other half) is formed, so that the reminder 202 is covered by the protective cover 201 .
  • the reminder 202 in the protective cover 201 may be in a regular shape such as a sphere, an ellipsoid, a ring, etc., or may be in other irregular shapes.
  • the minimum distance between the reminder 202 and the outer surface of the protective cover 201 can be in the range of 0.1 mm to 0.5 mm, so as to take into account the touch demand of the stylus 100 and the service life of the tip protection device 200 . It should be noted that: in combination with the user's usage habits, the stylus 100 is generally inclined, so that the side surface of the protective cover 201 is more likely to be worn.
  • the wall thickness of the protective cover 201 can be designed differently, so as to reduce the manufacturing cost of the pen tip protection device 200 and prolong the service life of the pen tip protection device 200 .
  • the average distance t2 between the bottom of the reminder 202 facing away from the pen tip 102 and the outer surface of the protective cover 201 may be smaller than the distance between the circumference of the reminder 202 and the protective cover 201 .
  • FIG. 9 is a schematic structural diagram of another embodiment of the pen tip protection device provided by the present application
  • FIG. 10 is a structural schematic diagram of another embodiment of the pen tip protection device in FIG. 9
  • FIG. 11 is the pen tip in FIG. 9
  • FIG. 12 is a structural schematic diagram of another embodiment of the pen tip protection device provided by the present application.
  • the protective cover 201 is provided with a blind hole 2014 along its axial direction (as shown by the dot-dash line 2013 in FIG. 9 ), so that the pen tip protection device 200 is installed on the touch screen through the blind hole 2014 Pen 100 on.
  • the reminder 202 is closer to the bottom of the blind hole 2014 than the entrance of the blind hole 2014 .
  • the pen tip protection device 200 when the pen tip protection device 200 is installed on the stylus 100 , the pen tip 102 can be inserted into the blind hole 2014 .
  • the end of the pen tip 102 can be in contact with the reminder 202; when the reminder 202 is colored liquid and/or colored powder, the end of the pen tip 102 and the reminder There is a distance d between the objects 202 . It should be noted that the above distance can be reasonably designed according to the size and shape of the pen tip 102 and the material of the protective cover 201 and other parameters, mainly to prevent the pen tip 102 from piercing the pen tip protection device 200 during the use of the stylus pen 100 , thereby increasing the reliability of the pen tip protection device 200 .
  • the axial direction of the blind hole 2014 may coincide with the axial direction of the pen tip 102 , and the size and shape of the blind hole 2014 may be adapted to the size and shape of the pen tip 102 .
  • the cross-sectional shape of the pen tip 102 on a reference plane perpendicular to the axis direction may be a regular shape such as a circle or a polygon.
  • the pen tip 102 may be cylindrical, and its diameter may be slightly larger than the diameter of the blind hole 2014 , so that the pen tip protection device 200 can be firmly sleeved on the pen tip 102 .
  • the orthographic projection of the blind hole 2014 on the reference plane perpendicular to the axis direction may fall within the orthographic projection of the reminder 202 on the reference plane.
  • the reminder 202 can be larger than the end of the pen tip 102, so that when the stylus 100 interacts with the display module 12, there is always a gap between the pen tip 102 and the protective cover 201.
  • Reminder 202 so that the reminder 202 can be revealed after the protective cover 201 is worn to a certain extent.
  • the reminder 202 may wrap around the bottom of the blind hole 2014 .
  • the reminder 202 when the pen tip 102 is inserted into the blind hole 2014 , the reminder 202 is not only larger than the end of the pen tip 102 , but can also wrap around the end of the pen tip 102 .
  • This setting is mainly due to the user's usage habits, the stylus 100 is generally inclined, so that the side surface of the protective cover 201 is more likely to be worn, so that the reminder 202 can also be revealed after the protective cover 201 is worn to a certain extent. .
  • the reminder 202 may surround the bottom of the blind hole 2014 .
  • the reminder 202 can wrap around the end of the pen tip 102 .
  • the stylus 100 is generally inclined in consideration of the user's usage habits, so that the side surface of the protective cover 201 is more likely to be worn, so that the reminder 202 can also be revealed after the protective cover 201 is worn to a certain extent. .
  • the blind hole 2014 may have a first hole section 2015 and a second hole section 2016 that are communicated.
  • the first hole section 2015 is closer to the reminder 202 than the second hole section 2016 .
  • the inner wall of the first hole segment 2015 may be a spherical surface, and the orthographic projection of the second hole segment 2016 on a reference plane perpendicular to the axis direction (as shown by the dot-dash line 2013 in FIG. 12 ) may fall on the first hole segment 2015 is within the orthographic projection on the reference plane.
  • the end of the pen tip 102 can be spherical, so as to improve the writing feel of the stylus 100; and the end of the pen tip 102 can be larger than other parts, and can form a snap-fit structure with the protective cover 201, thereby avoiding the pen tip protection device 200. detaches from stylus 100 .
  • the blind hole 2014 may also have a limiting section 2017 located in the second hole section 2016 .
  • the cross-sectional area of the limiting section 2017 on the reference plane perpendicular to the axis direction is larger than the cross-sectional area of the second hole section 2016 on the reference plane.
  • the nib 102 may be provided with protrusions.
  • the pen tip 102 and the protective cover 201 can form a snap-fit structure, thereby preventing the pen tip protection device 200 from falling off the stylus 100 .
  • the number of the limiting segments 2017 can be multiple; correspondingly, the number of protrusions on the pen tip 102 is also multiple.

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Abstract

本申请主要是涉及触控笔及其笔尖保护装置、电子设备，笔尖保护装置配置成能够装设在触控笔的笔尖上，并包括保护套和至少部分被保护套包覆的提醒物，提醒物能够在保护套磨损之后显露。本申请提供的笔尖保护装置可以装设在触控笔的笔尖上，以便于触控笔与电子设备的显示模组交互，由于笔尖保护装置内设置有提醒物，且提醒物能够在保护套磨损之后显露，以提醒用户，进而避免触控笔的笔尖刮伤显示模组。

Description

触控笔及其笔尖保护装置、电子设备 【技术领域】
本申请涉及电子设备的技术领域，具体是涉及触控笔及其笔尖保护装置、电子设备。
【背景技术】
随着电子设备的不断普及，电子设备已经成为人们日常生活中不可或缺的社交、娱乐工具，用户对于电子设备的要求也越来越高。以手机这类电子设备为例，手机已经不再局限于现有的刘海屏、水滴屏、挖孔屏等全面屏，而是更多地聚焦于折叠屏，以期手机能够为用户提供别样的使用体验。
【发明内容】
本申请实施例提供了一种应用于触控笔的笔尖保护装置，其中，该笔尖保护装置配置成能够装设在触控笔的笔尖上，并包括保护套和至少部分被保护套包覆的提醒物，提醒物能够在保护套磨损之后显露。
本申请实施例还提供了一种触控笔，其中，该触控笔包括笔杆、笔尖和笔尖保护装置，笔尖与笔杆连接，笔尖保护装置装设在笔尖上，并包括保护套和至少部分被保护套包覆的提醒物，提醒物能够在保护套磨损之后显露。
本申请实施例又提供了一种电子设备，其中，该电子设备包括显示模组、壳体和上述触控笔，显示模组与壳体装配连接，触控笔配置成能够与显示模组交互。
本申请的有益效果是：本申请提供的笔尖保护装置可以装设在触控笔的笔尖上，以便于触控笔与电子设备的显示模组交互，由于笔尖保护装置内设置有提醒物，且提醒物能够在保护套磨损之后显露，以提醒用户，进而避免触控笔的笔尖刮伤显示模组。
【附图说明】
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请提供的电子设备一实施例的结构示意图；
图2是本申请提供的电子设备另一实施例的结构示意图；
图3是本申请所述的显示模组一实施例的层叠结构示意图；
图4是本申请所述的触控笔一实施例的结构示意图；
图5是本申请所述的保护套与笔尖之间的连接关系的结构示意图；
图6是本申请提供的笔尖保护装置一实施例的结构示意图；
图7是本申请提供的笔尖保护装置另一实施例的结构示意图；
图8是本申请所述的提醒物一实施方式的结构示意图；
图9是本申请提供的笔尖保护装置又一实施例的结构示意图；
图10是图9中笔尖保护装置另一实施方式的结构示意图；
图11是图9中笔尖保护装置又一实施方式的结构示意图；
图12是本申请提供的笔尖保护装置再一实施例的结构示意图。
【具体实施方式】
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。可以理解的是，此处所描述的具体实施例仅用于解释本申请，而非对本申请的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与本申请相关的部分而非全部结构。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请中的术语“第一”、“第二”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
本申请实施例提供了一种应用于触控笔的笔尖保护装置，所述笔尖保护装置配置成能够装设在所述触控笔的笔尖上，并包括保护套和至少部分被所述保护套包覆的提醒物，所述提醒物能够在所述保护套磨损之后显露。
其中，所述提醒物为有色物质。
其中，所述有色物质包括有色液体、有色粉末中的至少一种。
其中，所述提醒物包括一墨水囊，所述墨水囊内装设有有色液体。
其中，所述保护套的莫氏硬度小于或等于1.5。
其中，所述保护套的材质为热塑性聚氨酯、聚酰亚胺、硅胶、橡胶中的任意一种。
其中，所述提醒物与所述保护套的外表面之间的最小距离在0.1mm至0.5mm的范围之内。
其中，所述保护套包括一体连接的软质部和硬质部，所述硬质部的莫氏硬度大于所述软质部的莫氏硬度，所述软质部的莫氏硬度小于或等于1.5，所述硬质部配置成能够装设在所述触控笔的笔尖上，所述提醒物至少部分被所述软质部包覆，并能够在所述软质部磨损之后显露。
其中，所述笔尖保护装置与所述触控笔的笔尖可拆卸连接。
其中，所述保护套沿其轴线方向设有一盲孔，以使得所述笔尖保护装置通过所述盲孔而装设在所述触控笔的笔尖上；相较于所述盲孔的入口，所述提醒物更靠近所述盲孔的底部。
其中，所述盲孔在垂直于所述轴线方向的参考平面上的正投影落在所述提醒物在所述参考平面上的正投影之内。
其中，所述提醒物包绕所述盲孔的底部。
其中，所述提醒物环绕所述盲孔的底部。
其中，所述盲孔具有连通的第一孔段和第二孔段，所述第一孔段相对于所述第二孔段更靠近所述提醒物，所述第一孔段的内壁为球面，所述第二孔段在垂直于所述轴线方向的参考平面上的正投影落在所述第一孔段在所述参考平面上的正投影之内。
其中，所述盲孔还具有位于所述第二孔段的限位段，所述限位段在垂直于所述轴线方向 的参考平面上的横截面积大于所述第二孔段在所述参考平面上的横截面积。
本申请实施例还提供了一种触控笔，所述触控笔包括笔杆、笔尖和笔尖保护装置，所述笔尖与所述笔杆连接，所述笔尖保护装置装设在所述笔尖上，并包括保护套和至少部分被所述保护套包覆的提醒物，所述提醒物能够在所述保护套磨损之后显露。
其中，所述保护套沿其轴线方向设有一盲孔，所述笔尖插置在所述盲孔内，且所述笔尖的末端与所述提醒物接触或者所述笔尖的末端与所述提醒物之间具有一间距。
其中，所述笔杆形成有一收容腔，所述笔尖为一导电体，所述触控笔还包括设置在所述收容腔内的控制电路，所述笔尖与所述控制电路耦接。
其中，所述触控笔还包括环状电极，所述环状电极套设于所述笔尖，并与所述控制电路耦接，所述环状电极与所述笔尖之间绝缘。
本申请实施例又提供了一种电子设备，所述电子设备包括显示模组、壳体和上述实施例所述的触控笔，所述显示模组与所述壳体装配连接，所述触控笔配置成能够与所述显示模组交互。
其中，所述显示模组为一柔性显示屏。
其中，所述触控笔与所述壳体可拆卸连接。
共同参阅图1至图3，图1是本申请提供的电子设备一实施例的结构示意图，图2是本申请提供的电子设备另一实施例的结构示意图，图3是本申请所述的显示模组一实施例的层叠结构示意图。
本申请实施例中，电子设备10可以是手机、平板电脑、笔记本电脑、电子画板等便携装置。其中，本申请实施例以电子设备10为手机为例进行示例性的说明。
如图1或图2所示，电子设备10可以包括显示模组12和壳体14。其中，显示模组12可以通过卡接、胶接、焊接等组装方式中的一种或其组合与壳体14装配连接。进一步地，电子设备10内部(具体可以是显示模组11与壳体组件13之间形成的容置腔)还可以设置诸如电池模组、天线模组、摄像头模组、指纹模组等结构件(图1及图2中均未示出)，以使得电子设备10能够实现其它相应的功能，从而满足用户的使用需求。
本申请实施例中，显示模组12可以是LCD(Liquid Crystal Display)这类显示屏，也可以是OLED(Organic Light-Emitting Diode)、QLED(Quantum Dot Light Emitting Diode)这类显示屏，还可以是Mini-LED、Micro-LED这类显示屏。其中，本申请实施例以显示模组12为OLED这类显示屏为例进行示例性的说明。作为示例性地，如图3所示，显示模组12可以包括依次层叠设置的显示面板122、圆偏光片124和透明盖板126，两两之间可以借助光学胶(Optically Clear Adhesive,OCA)、压敏胶(Pressure Sensitive Adhesive,PSA)等胶体128进行贴合。其中，在显示模组12与壳体14装配连接之后，透明盖板126相较于显示面板122更背离壳体14。进一步地，透明盖板126可以用于保护显示面板122，并具有可以作为电子设备10的一外表面，以便于用户进行点击、滑动、按压等触控操作。圆偏光片124主要是用于减弱甚至是消除显示面板122对外界环境光的反射，以增加显示模组12的对比度。显示面板122主要是用于使得显示模组12能够显示画面，并可以作为交互界面而指示用户在透明盖板126上进行上述触控操作。
在一些实施方式中，透明盖板126可以由玻璃(Glass)等材料制得，以便于显示模组12作为刚性显示屏。在其它一些实施方式中，透明盖板126可以由聚酰亚胺(Polyimide,PI)、无色聚酰亚胺(Colorless Polyimide,CPI)、超薄柔性玻璃(Ultra Thin Glass,UTG)等柔性材 料制得，以便于显示模组12作为柔性显示屏。其中，对于手机这类电子设备而言，当显示模组12为刚性显示屏时，电子设备10可以对应为直板手机(不可折叠)，如图1所示；而当显示模组12为柔性显示屏时，电子设备10可以对应为可折叠手机，如图2所示。进一步地，当显示模组12为刚性显示屏时，透明盖板126的莫氏硬度一般大于8；而当显示模组12为柔性显示屏时，透明盖板126的莫氏硬度一般小于2。
需要说明的是：刚性显示屏与柔性显示屏之间的差异，不应局限于透明盖板126的莫氏硬度之间的差异，还可以表现为透明盖板126的弹性模量、厚度等参数之间的差异，也可以表现为显示面板122、圆偏光片124、胶体128等结构的刚度之间的差异。换言之，透明盖板126的莫氏硬度仅是一个维度上的性能指标。
随着显示屏技术的不断发展，显示模组12可以为一电容屏，其具体结构为本领域的技术人员所熟知，在此不再赘述。其中，用户(具体可以为其手指)在显示模组12上进行上述触控操作时，显示模组12上的电容大小及其分布等数据参数会随之发生变化，电子设备10可以通过采集并运算上述数据参数，以实现与用户的交互。基于此，结合图4，电子设备10还可以包括一触控笔100。其中，触控笔100配置成能够与显示模组12交互，进而代替用户的手指与电子设备10进行交互。作为示例性地，用户可以通过触控笔100在电子设备10上进行书写、绘画等触控操作。此时，由于触控笔100可以具有一较细的笔尖，至少比用户的手指要细得多，使得用户在电子设备10上进行书写、绘画等触控操作时的准确性更高，进而有助于改善用户的体验度。进一步地，触控笔100可以与壳体14可拆卸连接，以免触控笔100丢失。作为示例性地，如图1或图2所示，电子设备10设有一收纳腔16，触控笔100可以插置在收纳腔16内。
参阅图4，图4是本申请所述的触控笔一实施例的结构示意图。
本申请实施例中，触控笔100可以为电感笔、被动式电容笔、主动式电容笔中的任意一种，以模拟用户的手指，其具体结构为本领域的技术人员所熟知，在此亦不再赘述。其中，电感笔主要是基于电磁感应输入技术(Electro-Magnetic Resonance,EMR)，被动式电容笔主要是基于被动式静电感应技术(Passive Electrostatic Solution,PES)，主动式电容笔主要是基于主动式静电感应技术(Active Electrostatic Solution,AES)。进一步地，本申请实施例以触控笔100为主动式电容笔为例进行示例性的说明。
如图4所示，触控笔100可以包括笔杆101、笔尖102。其中，笔尖102与笔杆101连接；笔尖102可以为一导电体(例如其由金属材料、导电塑胶等制得)，笔杆101也可以具有一定的导电能力。如此设置，以在用户握持触控笔100并接触显示模组12时，用户通过触控笔100与显示模组12形成电性通路，进而模拟用户的手指。进一步地，笔尖102可以部分伸出笔杆101，并可以比笔杆101细得多，以增加触控笔100与显示模组12交互的准确性。
需要说明的是：如果显示模组12为一电阻屏，其具体结构为本领域的技术人员所熟知，在此亦不再赘述，那么笔尖102与笔杆101均可以为绝缘体。
进一步地，笔杆101形成有一收容腔103。触控笔100还可以包括设置在收容腔103内的控制电路104，控制电路104与笔尖102耦接，以形成主动式电容笔。作为示例性地，控制电路104可以包括测力计(Force Gauge)1041、惯性测量单元(Inertial Measurement Unit,IMU)1042、处理器(Microcontroller Unit,MCU)1043、励磁电路(Excitation Circuits)1044、缓冲器(Buffer)1045、混频器(Mixer)1046、侧电极(Side Electrode)1047、电池(Battery)1048和导电橡皮擦(Conductive Eraser)1049。其中，电池1048可以为控制电路104供能； 侧电极1047可以实现控制电路104的通断。一方面，笔尖102、缓冲器1045、混频器1046、励磁电路1044依次耦合，以便于处理器1043控制励磁电路1044施加激励信号而作用于显示模组12，进而改变显示模组12上的电容大小及其分布等数据参数，电子设备10则可以通过采集并运算上述数据参数，以实现两者之间的交互。另一方面，笔尖102可以与测力计1041接触，测力计1041可以与惯性测量单元1042配合，以便于处理器1043计算触控笔100作用于显示模组12的力的大小。为此，触控笔100还可以包括套设于笔尖102的复位弹簧105，以增加触控笔100的可靠性和书写手感。进一步地，导电橡皮擦1049与励磁电路1044耦接，以实现擦除的功能。
再次参阅图4，触控笔100还可以包括环状电极106。其中，环状电极106套设于笔尖102，并与控制电路104耦接，环状电极106与笔尖102之间绝缘。作为示例性地，环状电极106可以与缓冲器1045、混频器1046、励磁电路1044依次耦合，以便于处理器1043控制励磁电路1044施加激励信号而作用于显示模组12，进而改变显示模组12上的电容大小及其分布等数据参数，电子设备10则可以通过采集并运算上述数据参数，以实现两者之间的交互。如此设置，触控笔100与电子设备10交互时，笔尖102与显示模组12可以形成第一触控信号，环状电极106与显示模组12可以形成第二触控信号，第二触控信号可以与第一触控信号配合以增加触控笔100在显示模组12上定位的精确度，第二触控信号还可以进一步实现触控笔100相对于显示模组12的倾斜角度。
进一步地，环状电极106可以套设在笔杆101上，并可以部分显露。此时，由于环状电极106可以由金属材料制得，使之具有一定的金属光泽，可以在触控笔100上起到一定的装饰性。
本申请的发明人在长期的研究中发现：相关技术中，触控笔一般分为硬笔和软笔两大类，两者的主要区别在于：硬笔的笔尖的莫氏硬度要大于软笔的笔尖的莫氏硬度。随之而来，硬笔较软笔更耐磨，但书写手感欠佳(好比圆珠笔在玻璃上书写)；软笔的书写手感较硬笔的好得多，但不耐磨。基于上述的相关描述，对于可折叠手机这类电子设备而言，显示模组12一般为柔性显示屏；具体而言，透明盖板126的莫氏硬度一般小于2。此时，透明盖板126的莫氏硬度较低，天然地能够提供更优质的书写手感；与此同时，显示模组12也容易被触控笔刮伤，这对于电子设备10而言是致命的。但是，结合表1和表3，若一味地选择软笔，则软笔的笔尖也会因与柔性显示屏之间的摩擦系数较大而磨损相对严重。进一步地，对于可折叠手机而言，其处于合并状态时，既可以是显示模组12内藏，俗称“内折屏”；也可以是显示模组12外显，俗称“外折屏”。其中，结合表2和表3，当可折叠手机对应为外折屏时，显示模组12的弯曲半径可以相对较大，使得透明盖板126的莫氏硬度能够相对较大，显示模组12相对不易被刮伤；而当可折叠手机对应为内折屏时，显示模组12的弯曲半径相对更小，使得透明盖板126的莫氏硬度相对更小，显示模组12相对更易被刮伤。
表1：不同类型触控笔的笔尖的摩擦系数测试(测试负重200g)
触控笔 内折屏 外折屏
软笔 0.149 0.185
硬笔 0.078 0.095
表2：不同类型触控笔的划痕测试
触控笔 内折屏 外折屏
软笔 500g出现划痕 1kg出现划痕
硬笔 350g出现划痕 800g出现划痕
表3：不同类型触控笔的磨损测试(测试负重300g±25g)
Figure PCTCN2021102852-appb-000001
基于上述的详细描述，本申请的一个发明构思可以为：在笔尖102上设一保护套201，保护套201的莫氏硬度小于笔尖102的莫氏硬度，以便于改善触控笔100的书写手感；且保护套201配置成在磨损之后可以进行更换，进而延长触控笔100的使用寿命。换言之，由于触控笔在显示模组12上形成的划痕是不可逆的，且显示模组12的更换成本相较于保护套201的更换成本也要高得多，使得通过牺牲保护套201的方式可以最大可能地保证显示模组12的可靠性。
然而，本申请的发明人在长期的研究中又发现：结合图5，保护套201与笔尖102之间的连接关系大致可以分为两大类，如图5(a)或图5(c)所示嵌入型，既可以为保护套201嵌入笔尖102，也可以为笔尖102嵌入保护套201；如图5(b)所示的平齐型，也即是保护套201未嵌入笔尖102，而笔尖102也未嵌入保护套201。然而，不论是上述何种连接关系，均会存在保护套201磨损一定程度之后而未能及时更换致使笔尖102刮伤显示模组12的风险。为此，本申请的另一个发明构思可以为：设置一提醒物202，以在保护套201磨损一定程度之后提醒用户，进而避免笔尖102刮伤显示模组12，用户也可以及时更换保护套201。需要说明的是：对于图5(a)所示的连接关系而言，上述磨损一定程度可以指保护套201露在笔尖102外面的部分被磨掉3/4；对于图5(b)所示的连接关系而言，上述磨损一定程度可以指保护套201被磨掉3/4；对于图5(c)所示的连接关系而言，上述磨损一定程度可以指保护套201磨损致使笔尖102显露。
共同参阅图6至图8，图6是本申请提供的笔尖保护装置一实施例的结构示意图，图7是本申请提供的笔尖保护装置另一实施例的结构示意图，图8是本申请所述的提醒物一实施方式的结构示意图。
本申请实施例中，笔尖保护装置200可以应用于触控笔100，并可以通过如图5所示的连接关系中的任意一种与笔尖102装配。换言之，笔尖保护装置200配置成能够装设在触控笔100(具体可以是其笔尖102)上。其中，图6所示的笔尖保护装置200与笔尖102之间的连接关系可以如图5(b)所示，图7所示的笔尖保护装置200与笔尖102之间的连接关系可以如图5(a)所示。需要说明的是：图6及图7中点划线2013可以简单地视作笔尖保护装 置200的轴线方向，也可以简单地视作笔尖102的轴线方向。
如图6所示，笔尖保护装置200可以包括保护套201和至少部分被保护套201包覆的提醒物202。其中，提醒物202能够在保护套201磨损之后显露。如此设置，以在保护套201磨损至提醒物202显露之后，提醒物202能够起到提醒用户的作用，进而避免笔尖102刮伤显示模组12。进一步地，笔尖保护装置200与触控笔100可拆卸连接，以在保护套201磨损至提醒物202显露之后进行更换，进而延长触控笔100的使用寿命。
需要说明的是：虽然图6所示提醒物202被保护套201完全包覆，但是结合图5(b)及图6，提醒物202也可以经由保护套201靠近笔尖102的一面显露，也即是提醒物202被保护套201部分包覆。换言之，笔尖保护装置200装设在触控笔100上之后，提醒物202可以一部分与笔尖102接触，其它另一部分被保护套201包覆。如此设置，用户可以在使用笔尖保护装置200之前，知悉提醒物202的颜色、形态等参数，以便于给予自己心理暗示，进而在保护套201磨损至提醒物202显露之后，能够迅速察觉提醒物202对自己的提醒。
基于上述的相关描述，保护套201的莫氏硬度可以小于或等于1.5；优选地可以小于或等于1，这样既可以改善触控笔100的书写手感，又可以避免笔尖保护装置200刮伤显示模组12。作为示例性地，保护套201的材质可以为热塑性聚氨酯(Thermoplastic Urethane,TPU)、聚酰亚胺、硅胶、橡胶中的任意一种。
进一步地，如图7所示，保护套201可以包括一体连接的软质部2011和硬质部2012，例如两者采用双色注塑工艺成型。其中，硬质部2012的莫氏硬度大于软质部2011的莫氏硬度，软质部2011的莫氏硬度小于或等于1.5。进一步地，硬质部2012配置成能够装设在触控笔100上，提醒物202至少部分被软质部2011包覆，并能够在软质部2011磨损之后显露。类似地，提醒物202可以被软质部2011完全包覆，也可以一部分被软质部2011包覆而其它另一部分则被硬质部2012包覆。如此设置，结合图5(a)，当笔尖保护装置200嵌入笔尖102时，硬质部2012嵌入笔尖102，以增加两者之间连接的可靠性，软质部2011凸出笔尖102之外，以便于触控笔100进行上述触控操作。
在一些实施方式中，提醒物202可以为一有色物质。其中，提醒物202的颜色可以为黑色、红色、绿色等较为醒目的颜色。作为示例性地，有色物质可以包括有色液体、有色粉末中的至少一种。此时，保护套201磨损一定程度之后，有色液体可以从保护套201内流出，有色粉末则可以从保护套201内漏出，进而实现提醒用户更换的目的。作为示例性地，有色物质还可以包括带颜色的蜡、石墨等块状物中的任意一种或其组合。此时，保护套201磨损一定程度之后，提醒物202显露，若继续使用触控笔100则会在显示模组12上粘附一定量的提醒物202，同样可以实现提醒用户更换的目的。当然，有色物质中还可以混入芳香类(或刺激性)而无毒的物质，以从嗅觉上进行辅助提醒。
在其它一些实施方式中，如图8所示，提醒物202可以包括一墨水囊2021，墨水囊2021内装设有有色液体2022。其中，墨水囊2021可以为一薄膜，有色液体2022可以为墨水。当然，墨水囊2021内也可以装设有有色粉末。如此设置，主要是为了便于将提醒物202包裹在保护套201内。作为示例性地，保护套201可以先成型一部分(例如一半)，再将提醒物202置于其中，随后成型另一部分(例如另一半)，进而使得提醒物202被保护套201包覆。
进一步地，提醒物202在保护套201内可以呈球形、椭球形、环形等规则形状，也可以为其它不规则形状。此时，提醒物202与保护套201的外表面之间的最小距离可以在0.1mm至0.5mm的范围之内，以兼顾触控笔100的触控需求与笔尖保护装置200的使用寿命。需要 说明的是：结合用户的使用习惯，触控笔100一般呈倾斜状态，使得保护套201的侧面更大概率地被磨损。基于此，保护套201的壁厚可以进行差异化设计，以便于降低笔尖保护装置200的制作成本，并延长笔尖保护装置200的使用寿命。作为示例性地，结合图5(b)及图6，提醒物202背离笔尖102的底部与保护套201的外表面之间的平均距离t2可以小于提醒物202的环周部与保护套201的外表面之间的平均距离t1。
共同参阅图9至图12，图9是本申请提供的笔尖保护装置又一实施例的结构示意图，图10是图9中笔尖保护装置另一实施方式的结构示意图，图11是图9中笔尖保护装置又一实施方式的结构示意图，图12是本申请提供的笔尖保护装置再一实施例的结构示意图。
如图9至图11所示，保护套201沿其轴线方向(如图9中点划线2013所示)设有一盲孔2014，以使得笔尖保护装置200通过盲孔2014而装设在触控笔100上。此时，相较于盲孔2014的入口，提醒物202更靠近盲孔2014的底部。换言之，结合图5(c)，当笔尖保护装置200装设在触控笔100上时，笔尖102可以插置在盲孔2014内。其中，当提醒物202为带颜色的蜡、石墨等块状物时，笔尖102的末端可以与提醒物202接触；当提醒物202为有色液体和/或有色粉末时，笔尖102的末端与提醒物202之间具有一间距d。需要说明的是：上述间距可以根据笔尖102的大小、形状及保护套201的材质等参数进行合理的设计，主要是为了避免笔尖102在触控笔100的使用过程中将笔尖保护装置200刺破，进而增加笔尖保护装置200的可靠性。
进一步地，盲孔2014的轴线方向可以与笔尖102的轴线方向重合，且盲孔2014的大小、形状等参数可以与笔尖102的大小、形状等参数适配。其中，笔尖102在垂直于轴线方向的参考平面上的截面形状可以呈圆形、多边形等规则形状。结合图5(c)，笔尖102可以呈柱状，且其直径可以略大于盲孔2014的孔径，以使得笔尖保护装置200可以牢牢地套设在笔尖102上。
在一些实施方式中，如图9所示，盲孔2014在垂直于轴线方向的参考平面上的正投影可以落在提醒物202在参考平面上的正投影之内。换言之，当笔尖102插置在盲孔2014内时，提醒物202可以较笔尖102的末端更大，以在触控笔100与显示模组12交互时，笔尖102与保护套201之间始终有提醒物202，进而使得提醒物202能够在保护套201磨损一定程度之后显露。
在其它另一些实施方式中，如图10所示，提醒物202可以包绕盲孔2014的底部。换言之，当笔尖102插置在盲孔2014内时，提醒物202不仅较笔尖102的末端更大，而且可以包绕笔尖102的末端。如此设置，主要是考虑到用户的使用习惯，触控笔100一般呈倾斜状态，使得保护套201的侧面更大概率地被磨损，进而使得提醒物202同样能够在保护套201磨损一定程度之后显露。
在其它又一些实施方式中，如图11所示，提醒物202可以环绕盲孔2014的底部。换言之，当笔尖102插置在盲孔2014内时，提醒物202可以环绕笔尖102的末端。如此设置，同样是考虑到用户的使用习惯，触控笔100一般呈倾斜状态，使得保护套201的侧面更大概率地被磨损，进而使得提醒物202同样能够在保护套201磨损一定程度之后显露。
进一步地，如图12所示，盲孔2014可以具有连通的第一孔段2015和第二孔段2016。其中，第一孔段2015相对于第二孔段2016更靠近提醒物202。进一步地，第一孔段2015的内壁可以为球面，第二孔段2016在垂直于轴线方向(如图12中点划线2013所示)的参考平面上的正投影可以落在第一孔段2015在参考平面上的正投影之内。相应地，笔尖102的末端 可以呈球状，以便于改善触控笔100的书写手感；且笔尖102的末端可以较其它部分更大，可以与保护套201形成卡接结构，进而避免笔尖保护装置200从触控笔100上脱落。
进一步地，盲孔2014还可以具有位于第二孔段2016的限位段2017。其中，限位段2017在垂直于轴线方向的参考平面上的横截面积大于第二孔段2016在参考平面上的横截面积。相应地，笔尖102可以设有凸起。如此设置，当笔尖102插置在盲孔2014内时，笔尖102与保护套201可以形成卡接结构，进而避免笔尖保护装置200从触控笔100上脱落。基于此，限位段2017的数量可以为多个；相应地，笔尖102上凸起的数量也随之为多个。
以上所述仅为本申请的实施方式，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (22)

  1. 一种应用于触控笔的笔尖保护装置，其特征在于，所述笔尖保护装置配置成能够装设在所述触控笔的笔尖上，并包括保护套和至少部分被所述保护套包覆的提醒物，所述提醒物能够在所述保护套磨损之后显露。
  2. 根据权利要求1所述的笔尖保护装置，其特征在于，所述提醒物为有色物质。
  3. 根据权利要求2所述的笔尖保护装置，其特征在于，所述有色物质包括有色液体、有色粉末中的至少一种。
  4. 根据权利要求1所述的笔尖保护装置，其特征在于，所述提醒物包括一墨水囊，所述墨水囊内装设有有色液体。
  5. 根据权利要求1所述的笔尖保护装置，其特征在于，所述保护套的莫氏硬度小于或等于1.5。
  6. 根据权利要求5所述的笔尖保护装置，其特征在于，所述保护套的材质为热塑性聚氨酯、聚酰亚胺、硅胶、橡胶中的任意一种。
  7. 根据权利要求1所述的笔尖保护装置，其特征在于，所述提醒物与所述保护套的外表面之间的最小距离在0.1mm至0.5mm的范围之内。
  8. 根据权利要求1所述的笔尖保护装置，其特征在于，所述保护套包括一体连接的软质部和硬质部，所述硬质部的莫氏硬度大于所述软质部的莫氏硬度，所述软质部的莫氏硬度小于或等于1.5，所述硬质部配置成能够装设在所述触控笔的笔尖上，所述提醒物至少部分被所述软质部包覆，并能够在所述软质部磨损之后显露。
  9. 根据权利要求1所述的笔尖保护装置，其特征在于，所述笔尖保护装置与所述触控笔的笔尖可拆卸连接。
  10. 根据权利要求1所述的笔尖保护装置，其特征在于，所述保护套沿其轴线方向设有一盲孔，以使得所述笔尖保护装置通过所述盲孔而装设在所述触控笔的笔尖上；相较于所述盲孔的入口，所述提醒物更靠近所述盲孔的底部。
  11. 根据权利要求10所述的笔尖保护装置，其特征在于，所述盲孔在垂直于所述轴线方向的参考平面上的正投影落在所述提醒物在所述参考平面上的正投影之内。
  12. 根据权利要求11所述的笔尖保护装置，其特征在于，所述提醒物包绕所述盲孔的底部。
  13. 根据权利要求10所述的笔尖保护装置，其特征在于，所述提醒物环绕所述盲孔的底部。
  14. 根据权利要求10所述的笔尖保护装置，其特征在于，所述盲孔具有连通的第一孔段和第二孔段，所述第一孔段相对于所述第二孔段更靠近所述提醒物，所述第一孔段的内壁为球面，所述第二孔段在垂直于所述轴线方向的参考平面上的正投影落在所述第一孔段在所述参考平面上的正投影之内。
  15. 根据权利要求14所述的笔尖保护装置，其特征在于，所述盲孔还具有位于所述第二孔段的限位段，所述限位段在垂直于所述轴线方向的参考平面上的横截面积大于所述第二孔段在所述参考平面上的横截面积。
  16. 一种触控笔，其特征在于，所述触控笔包括笔杆、笔尖和笔尖保护装置，所述笔尖与所述笔杆连接，所述笔尖保护装置装设在所述笔尖上，并包括保护套和至少部分被所述保 护套包覆的提醒物，所述提醒物能够在所述保护套磨损之后显露。
  17. 根据权利要求16所述的触控笔，其特征在于，所述保护套沿其轴线方向设有一盲孔，所述笔尖插置在所述盲孔内，且所述笔尖的末端与所述提醒物接触或者所述笔尖的末端与所述提醒物之间具有一间距。
  18. 根据权利要求16所述的触控笔，其特征在于，所述笔杆形成有一收容腔，所述笔尖为一导电体，所述触控笔还包括设置在所述收容腔内的控制电路，所述笔尖与所述控制电路耦接。
  19. 根据权利要求18所述的触控笔，其特征在于，所述触控笔还包括环状电极，所述环状电极套设于所述笔尖，并与所述控制电路耦接，所述环状电极与所述笔尖之间绝缘。
  20. 一种电子设备，其特征在于，所述电子设备包括显示模组、壳体和权利要求16-19任一项所述的触控笔，所述显示模组与所述壳体装配连接，所述触控笔配置成能够与所述显示模组交互。
  21. 根据权利要求20所述的电子设备，其特征在于，所述显示模组为一柔性显示屏。
  22. 根据权利要求20所述的电子设备，其特征在于，所述触控笔与所述壳体可拆卸连接。
PCT/CN2021/102852 2020-09-11 2021-06-28 触控笔及其笔尖保护装置、电子设备 WO2022052577A1 (zh)

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