CN113220142B - Capacitive touch pen - Google Patents
Capacitive touch pen Download PDFInfo
- Publication number
- CN113220142B CN113220142B CN202110334957.XA CN202110334957A CN113220142B CN 113220142 B CN113220142 B CN 113220142B CN 202110334957 A CN202110334957 A CN 202110334957A CN 113220142 B CN113220142 B CN 113220142B
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- Prior art keywords
- pen
- elastic
- arm
- support frame
- strain gauge
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Classifications
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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
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention discloses a capacitive touch pen, which comprises a fixed structure and a pen point assembly arranged in the fixed structure, wherein the fixed structure comprises a pen rod, the pen point assembly comprises a pen point shaft and a strain sensor, the strain sensor comprises an elastomer and a strain gauge arranged on the elastomer, the elastomer is L-shaped, one end of the elastomer is fixed on the fixed structure, and the capacitive touch pen also comprises an elastic support frame arranged on the pen point shaft, and the elastic support frame is connected with the fixed structure. The capacitive touch pen adopts the L-shaped elastomer to be matched with the elastic support frame, has novel and practical structure, can effectively solve the problem of large deformation difference of the strain gauge under the same load condition when different writing angles are achieved, and achieves the same using effect and experience as those of the U-shaped elastomer; and compared with the single-arm elastic body, the elastic support frame can share part of stress of the elastic body, and reduce deformation of the elastic body, so that the service life of the elastic body is prolonged.
Description
Technical Field
The invention relates to the technical field of touch control equipment, in particular to a capacitive touch pen.
Background
With the increasing popularity of capacitive screens, more and more electronic products such as tablet computers, mobile phones and navigator begin to use the capacitive screens for operation control, although the capacitive screens can be touched by fingers, the touch accuracy of the fingers is not good because the touch screen is easy to be stained by the dirt of the fingers, and some professionals cannot achieve the required accuracy by using the fingers, so that more and more consumers pursue high-quality capacitive touch pens to operate the touch screens.
The conventional capacitive touch pen generally comprises a pen holder, a pen point assembly, a battery, an antenna, a main control board and the like, wherein the pen point assembly comprises a pen point shaft, and a strain sensor and an electrode assembly which are respectively arranged on the pen point shaft, and the strain sensor comprises an elastomer and a strain gauge arranged on the elastomer.
The Hua-Cheng and apple companies apply for related patent protection in the aspect of a capacitance pen structure, wherein the U-shaped elastomer provided by the Hua-Cheng company can effectively solve the problems of different writing angles and large relation difference between load and strain gauge deformation, and the applicant provides a capacitance touch pen with a novel structure for avoiding patents of friends.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: a capacitive stylus with novel structure is provided.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a capacitive touch pen, includes fixed knot constructs and locates the nib subassembly in the fixed knot constructs, and fixed knot constructs including the pen-holder, and the nib subassembly includes nib axle and strain sensor, and strain sensor includes the elastomer and locates the strain gauge on the elastomer, and the elastomer is L style of calligraphy and its one end is fixed on fixed knot constructs, still including locating the epaxial elastic support frame of pen point, and the elastic support frame is connected fixed knot constructs.
The invention has the beneficial effects that: the capacitive touch pen adopts the L-shaped elastomer to be matched with the elastic support frame, has novel and practical structure, can effectively solve the problem of large deformation difference of the strain gauge under the same load condition when different writing angles are achieved, and achieves the same using effect and experience as those of the U-shaped elastomer; and compared with the single-arm elastic body, the elastic support frame can share part of stress of the elastic body, and reduce deformation of the elastic body, so that the service life of the elastic body is prolonged.
Drawings
FIG. 1 is an exploded view of a capacitive stylus according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a nib assembly in a capacitive stylus according to a first embodiment of the invention;
fig. 3 is a top view of an elastic support frame in a capacitive touch pen according to a second embodiment of the invention.
Description of the reference numerals:
1. a penholder;
2. a nib assembly; 21. a pen tip shaft; 211. a flat plate portion; 2111. limit raised strips; 212. a mounting part; 2121. a mounting plate section; 2122. a column; 22. an electrode assembly; 23. a strain sensor; 231. an elastomer; 2311. a first arm; 2312. a second arm; 232. strain gauges; 24. an elastic support frame; 241. a fixing part; 242. an elastic branching portion; 2421. a first moment arm; 2422. tilting the arm of force; 2423. a second moment arm; 243. reinforcing spokes;
3. a main control board;
4. a battery;
5. an antenna assembly;
6. a pen stand; 61. windowing;
7. and a shielding assembly.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 3, a capacitive touch pen includes a fixing structure and a pen tip assembly 2 disposed in the fixing structure, the fixing structure includes a pen shaft 1, the pen tip assembly 2 includes a pen tip shaft 21 and a strain sensor 23, the strain sensor 23 includes an elastic body 231 and a strain gauge 232 disposed on the elastic body 231, the elastic body 231 is L-shaped and has an end fixed on the fixing structure, and further includes an elastic support frame 24 disposed on the pen tip shaft 21, and the elastic support frame 24 is connected with the fixing structure.
From the above description, the beneficial effects of the invention are as follows: the capacitive touch pen adopts the L-shaped elastic body 231 to be matched with the elastic support frame 24, has novel and practical structure, can effectively solve the problem of large deformation difference of the strain gauge 232 under the same load condition when different writing angles are achieved, and achieves the same using effect and experience as those of the U-shaped elastic body 231; and compared with the single-arm elastic body 231 alone, the elastic support frame 24 can share part of the stress of the elastic body 231, and reduce the deformation amount of the elastic body 231, so that the service life of the elastic body 231 is prolonged.
Further, the elastic body 231 includes a first arm 2311 and a second arm 2312 connected to each other, the first arm 2311 is fixedly connected to the fixing structure, the second arm 2312 is fixed to the pen tip shaft 21, and the strain gauge 232 is disposed on the first arm 2311.
Further, the pen tip shaft 21 includes a flat plate portion 211, the second arm 2312 is fixed on the flat plate portion 211, and a limit protrusion 2111 for limiting the second arm 2312 is provided on the flat plate portion 211.
As can be seen from the above description, the spacing ribs 2111 can function as spacing second arms 2312, which facilitates assembling of the elastic body 231 and the pen tip shaft 21, and improves product consistency; in addition, the limiting protruding strip 2111 can also play a role in protecting the second arm 2312, and prevent the second arm 2312 from being accidentally scratched during assembly.
Further, the first arm 2311 is disposed away from the elastic support frame 24.
As can be seen from the above description, the first arm 2311 and the elastic support frame 24 have a larger distance therebetween, which is beneficial to improving the sensitivity of the strain sensor 23.
Further, the nib assembly 2 further includes an electrode assembly 22 disposed on the nib shaft 21, a mounting portion 212 is disposed at an end of the nib shaft 21 away from the electrode assembly 22, and the elastic support 24 is mounted on the mounting portion 212.
As can be seen from the above description, the arrangement of the mounting portion 212 can facilitate the assembly work of the elastic support frame 24.
Further, the pen tip assembly further comprises a chip assembly disposed on the pen tip shaft 21, and the chip assembly is electrically connected with the strain gauge 232 and the electrode assembly 22, respectively.
Further, the elastic supporting frame 24 includes a fixing portion 241 and a plurality of elastic branch portions 242 disposed on a periphery of the fixing portion 241, wherein the fixing portion 241 is fixedly connected to the pen tip shaft 21, and the elastic branch portions 242 are fixedly connected to the fixing structure.
As can be seen from the above description, the elastic support frame 24 is simple and stable in structure and can provide sufficient buffering force.
Further, the plurality of elastic branching portions 242 are uniformly distributed along the periphery of the fixing portion 241.
As can be seen from the above description, the plurality of elastic branch portions 242 are uniformly distributed to make the pen tip shaft 21 receive more uniform buffering force, which is beneficial to improving the testing accuracy of the strain sensor 23.
Further, the resilient support 24 further includes a reinforcing spoke 243, and two adjacent resilient branches 242 are connected by the reinforcing spoke 243.
As can be seen from the above description, the provision of the reinforcing spokes 243 can improve the strength of the self structure of the elastic support frame 24, and can effectively prevent the reinforcing spokes 243 from being irreversibly deformed during the transportation process; meanwhile, the arrangement of the reinforcing spokes 243 can also improve the elastic modulus of the elastic support frame 24, so that the buffer effect of the elastic support frame 24 is improved, and the stress borne by the strain sensor 23 is further shared; in addition, the arrangement of the reinforcing spokes 243 can provide convenience for the connection between the elastic branch portion 242 and the fixed structure, so as to prevent the elastic branch portion 242 from shaking randomly when the elastic branch portion 242 is connected with the fixed structure.
Further, the fixing structure further comprises a pen support 6 arranged in the pen holder 1 and/or a shielding component 7 arranged in the pen holder 1.
As can be seen from the above description, the specific mounting positions of the elastic support frame 24 are various, and can be set as required, which is beneficial to enriching the diversity of the capacitive touch pen.
Example 1
Referring to fig. 1 and 2, a first embodiment of the invention is as follows: a capacitive stylus can be used for touch control operation of touch control equipment such as mobile phones, tablet computers, navigator and the like.
The capacitive touch pen comprises a fixing structure, the fixing structure comprises a pen holder 1, a pen point component 2, a chip component (not shown), a main control board 3, a battery 4 and an antenna component 5 are arranged in the pen holder 1, the antenna component 5, the chip component and the battery 4 are respectively and electrically connected with the main control board 3, the pen point component 2 is located at the head of the pen holder 1, in the embodiment, the fixing structure further comprises a pen support 6 and a shielding component 7, the pen support 6 and the shielding component 7 are respectively arranged in the pen holder 1, the pen support 6 is connected with the pen point component 2, the shielding component 7 covers the pen point component 2 to shield the pen point component 2, the antenna component 5, the main control board 3 and the battery 4 are respectively fixed on the pen support 6, and in particular, the pen point component 2 is fixedly connected with the pen support 6 through the shielding component 7. In other embodiments, the fixing structure may not be provided with the pen holder 6 and/or the shielding component 7, and the pen tip component 2, the antenna component 5, the main control board 3 and the battery 4 may be directly fixed on the pen holder 1.
For convenient charging, be equipped with wireless module that charges on the main control board 3, wireless module that charges with main control board 3 electricity is connected, have on the pen support 6 and correspond to the windowing 61 that wireless module set up that charges.
Specifically, the nib assembly 2 includes a nib shaft 21, an electrode assembly 22 and a strain sensor 23, the electrode assembly 22 is electrically connected with the chip assembly, the strain sensor 23 includes an elastic body 231 and a strain gauge 232 disposed on the elastic body 231, the elastic body 231 is L-shaped, the elastic body 231 is respectively connected and fixed with the nib shaft 21 and the fixing structure, and the nib assembly further includes an elastic supporting frame 24 disposed on the nib shaft 21, and the elastic supporting frame 24 is connected with the fixing structure.
More specifically, the elastic body 231 includes a first arm 2311 and a second arm 2312 that are connected, the first arm 2311 is fixedly connected to the fixing structure, the second arm 2312 is fixed on the pen tip shaft 21, and the strain gauge 232 is disposed on the first arm 2311. Preferably, the pen tip shaft 21 includes a flat plate portion 211, the second arm 2312 is fixed on the flat plate portion 211, a limiting protrusion 2111 for limiting the second arm 2312 is provided on the flat plate portion 211, the number of the limiting protrusions 2111 is two, and the second arm 2312 is located between the two limiting protrusions 2111. As a preferred embodiment, the end of the first arm 2311 far away from the end of the second arm 2312 is fixed on the fixing structure, so that the assembling difficulty of the capacitive stylus can be reduced, materials can be saved, and the response sensitivity of the strain gauge 232 can be ensured.
In order to make the internal structure of the capacitive stylus more compact and shorten the conducting distance between the electrode assembly 22 and the chip assembly, preferably, the chip assembly is disposed on the flat plate portion 211, and the chip assembly is electrically connected with the strain gauge 232 and the electrode assembly 22, and further preferably, the chip assembly is fixed on the spacing protruding strip 2111, so that the spacing protruding strip 2111 not only plays a role in spacing and protecting the second arm 2312, but also plays a role in providing an installation position for the chip assembly, thereby realizing multiple purposes.
In detail, the first arm 2311 is welded to the shielding member 7, the second arm 2312 is welded to the flat plate 211, and the elastic support frame 24 is welded to the shielding member 7. In other embodiments, the first arm 2311 may also be directly fixed on the pen stand 6 or the pen holder 1, where a specific fixing manner may be selected from screwing, gluing, clamping, and the like; the elastic support frame 24 can also be directly fixed on the pen support 6 or the pen holder 1, and the specific fixing mode can be selected from screw connection, cementing connection, clamping connection and the like; the second arm 2312 may be fixedly connected to the pen tip shaft 21 by screwing, gluing, clamping or other fixing methods.
To further secure the sensitivity of the strain sensor 23, a mounting portion 212 is provided at an end of the pen-tip shaft 21 away from the electrode assembly 22, the elastic support 24 is mounted on the mounting portion 212, and the first arm 2311 is disposed away from the mounting portion 212, that is, the first arm 2311 is disposed away from the elastic support 24. Thus, a sufficient distance can be maintained between the first arm 2311 and the elastic support frame 24. In this embodiment, the mounting portion 212 includes a mounting plate portion 2121 connected to the pen-tip shaft 21 and a post 2122 provided on the mounting plate portion 2121, and the presence of the post 2122 can further increase the distance between the first arm 2311 and the elastic support 24, and the elastic support 24 is fixed to the post 2122 by a screw. In a preferred embodiment, the pen tip 21 and the mounting portion 212 are integrally formed.
In this embodiment, the elastic supporting frame 24 includes a fixing portion 241 and a plurality of elastic branch portions 242 disposed on a periphery of the fixing portion 241, the fixing portion 241 is fixedly connected to the pen tip shaft 21, the elastic branch portions 242 are fixedly connected to the fixing structure, and the fixing portion 241 is provided with a through hole through which the screw passes.
In order to ensure that the elastic support frame 24 can provide a balanced buffering force, a plurality of elastic branch portions 242 are uniformly distributed along the periphery of the fixing portion 241, in this embodiment, the number of the elastic branch portions 242 is four, and two adjacent elastic branch portions 242 are disposed at a 90 ° interval. In other embodiments, the number of the elastic branches 242 may be two, three, five, six, etc.
The elastic branch portion 242 in this embodiment is substantially zigzag, specifically, the elastic branch portion 242 includes a first force arm 2421, an inclined force arm 2422 and a second force arm 2423 that are sequentially connected, one end of the first force arm 2421 is connected to the fixing portion 241, the other end of the first force arm 2421 is bent and extended obliquely upward away from the fixing portion 241 to form the inclined force arm 2422, one end of the inclined arm far away from the first force arm 2421 is bent and extended outward to form the second force arm 2423, and one end of the second force arm 2423 far away from the inclined force arm 2422 is connected and fixed with the fixing structure. Optionally, the second force arm 2423 is parallel to the first force arm 2421. In other embodiments, the specific configuration of the elastic branching portion 242 may be other shapes, such as a curve shape, a spiral shape, etc., where the elastic branching portion 242 is in a spiral shape, a number of the elastic branching portions 242 form a swirl-like pattern.
As a preferred embodiment, the elastic support frame 24 is an integral structure formed by cutting and bending a metal plate.
Of course, in other embodiments, the resilient support 24 may be other structures, such as springs, rubber members, etc.
Example two
Referring to fig. 3, a second embodiment of the present invention is a further improvement of the elastic supporting frame 24 based on the first embodiment, and is different from the first embodiment in that: the elastic support frame 24 further includes a reinforcing spoke 243, and two adjacent elastic branch portions 242 are connected by the reinforcing spoke 243, and at this time, when the elastic support frame 24 is viewed from above, the elastic support frame 24 may be in a spider-web shape. The arrangement of the reinforcing spoke 243 can improve the stability of the self structure of the elastic support frame 24 and increase the elastic modulus of the self structure, and can also facilitate the assembly work of the capacitive touch pen.
It is to be understood that the elastic support 24 in this embodiment may be an integral structure formed by cutting and bending a metal plate.
In summary, the capacitive touch pen provided by the invention adopts the L-shaped elastomer to be matched with the elastic support frame, has novel and practical structure, can effectively solve the problem of large deformation difference of the strain gauge under the same load condition when different writing angles are achieved, and achieves the same use effect and experience as those of the U-shaped elastomer; compared with the single-arm elastic body, the elastic support frame is increased to share part of stress of the elastic body, so that deformation of the elastic body is reduced, and the service life of the elastic body is prolonged; the elastic support frame in the shape of the spider is stable in structure, large in elastic modulus and capable of facilitating assembly work of the capacitive touch pen, and assembly efficiency of the capacitive touch pen is improved.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes made by the specification and drawings of the present invention, or direct or indirect application in the relevant art, are included in the scope of the present invention.
Claims (6)
1. The utility model provides a capacitive touch pen, includes fixed knot constructs and locates the nib subassembly in the fixed knot constructs, and fixed knot constructs including the pen-holder, and the nib subassembly includes nib axle and strain sensor, and strain sensor includes the elastomer and locates the strain gauge on the elastomer, its characterized in that: the elastic body is L-shaped, one end of the elastic body is fixed on the fixed structure, and the pen tip is provided with an elastic supporting frame on the pen tip shaft, and the elastic supporting frame is connected with the fixed structure; the elastic support frame comprises a fixing part and a plurality of elastic branch parts arranged on the fixing part, the fixing part is fixedly connected with the pen point shaft, and the elastic branch parts are fixedly connected with the fixing structure; the elastic support frame further comprises reinforcing spokes, and two adjacent elastic branch parts are connected through the reinforcing spokes; the elastic body comprises a first arm and a second arm which are connected, the first arm is fixedly connected with the fixing structure, the second arm is fixed on the pen point shaft, and the strain gauge is arranged on the first arm; the pen point shaft comprises a flat plate part, the second arm is fixed on the flat plate part, and a limiting convex strip for limiting the second arm is arranged on the flat plate part.
2. The capacitive stylus of claim 1, wherein: the first arm is disposed away from the resilient support.
3. The capacitive stylus of claim 1, wherein: the pen point assembly further comprises an electrode assembly arranged on the pen point shaft, an installation part is arranged at one end, far away from the electrode assembly, of the pen point shaft, and the elastic supporting frame is installed on the installation part.
4. A capacitive stylus according to claim 3, wherein: the strain gauge comprises a pen tip shaft, a strain gauge body, a strain gauge and an electrode assembly, and is characterized by further comprising a chip assembly, wherein the chip assembly is arranged on the pen tip shaft and is electrically connected with the strain gauge and the electrode assembly respectively.
5. The capacitive stylus of claim 1, wherein: the elastic branch parts are uniformly distributed along the periphery of the fixing part.
6. The capacitive stylus of claim 1, wherein: the fixing structure further comprises a pen support arranged in the pen holder and/or a shielding component arranged in the pen holder.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110334957.XA CN113220142B (en) | 2021-03-29 | 2021-03-29 | Capacitive touch pen |
| PCT/CN2021/110172 WO2022198876A1 (en) | 2021-03-26 | 2021-08-03 | Capacitive stylus |
| US17/466,169 US20220308688A1 (en) | 2021-03-26 | 2021-09-03 | Capacitive stylus pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110334957.XA CN113220142B (en) | 2021-03-29 | 2021-03-29 | Capacitive touch pen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113220142A CN113220142A (en) | 2021-08-06 |
| CN113220142B true CN113220142B (en) | 2023-09-12 |
Family
ID=77084367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110334957.XA Active CN113220142B (en) | 2021-03-26 | 2021-03-29 | Capacitive touch pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113220142B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022198876A1 (en) * | 2021-03-26 | 2022-09-29 | 深圳市信维通信股份有限公司 | Capacitive stylus |
| CN116009714B (en) * | 2023-03-29 | 2023-08-01 | 荣耀终端有限公司 | Touch pen, electronic equipment and pressure detection device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102681676A (en) * | 2011-03-07 | 2012-09-19 | 深圳富泰宏精密工业有限公司 | Touch pen with adjustment structure |
| CN104067203A (en) * | 2012-02-01 | 2014-09-24 | 日立麦克赛尔株式会社 | Digital pen |
| KR20140115081A (en) * | 2013-03-20 | 2014-09-30 | 정광수 | a capacitive sensing touch pen |
| CN108572750A (en) * | 2017-03-08 | 2018-09-25 | 翰硕电子股份有限公司 | Portable electronic device and active capacitive touch pen thereof |
| CN108733234A (en) * | 2017-04-14 | 2018-11-02 | 株式会社和冠 | Stylus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013160887A1 (en) * | 2012-04-23 | 2013-10-31 | N-Trig Ltd. | Pressure sensitive stylus for a digitizer |
| US10761625B2 (en) * | 2017-10-31 | 2020-09-01 | Microsoft Technology Licensing, Llc | Stylus for operation with a digitizer |
-
2021
- 2021-03-29 CN CN202110334957.XA patent/CN113220142B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102681676A (en) * | 2011-03-07 | 2012-09-19 | 深圳富泰宏精密工业有限公司 | Touch pen with adjustment structure |
| CN104067203A (en) * | 2012-02-01 | 2014-09-24 | 日立麦克赛尔株式会社 | Digital pen |
| KR20140115081A (en) * | 2013-03-20 | 2014-09-30 | 정광수 | a capacitive sensing touch pen |
| CN108572750A (en) * | 2017-03-08 | 2018-09-25 | 翰硕电子股份有限公司 | Portable electronic device and active capacitive touch pen thereof |
| CN108733234A (en) * | 2017-04-14 | 2018-11-02 | 株式会社和冠 | Stylus |
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| Publication number | Publication date |
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| CN113220142A (en) | 2021-08-06 |
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