Capacitance pen capable of switching writing modes through touch induction

By integrating a touch-sensing module into the capacitive pen, users can switch modes by touching the pen barrel with their fingers, solving the problem of cumbersome operation in existing technologies and achieving convenient and efficient writing mode switching.

CN223552085UActive Publication Date: 2025-11-14SHENZHEN XIHAI SEMICON CO LTD
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Patent Information

Application Number
CN202423174471.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-11-14
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

Existing capacitive pens require frequent access to the writing settings interface when changing writing modes, resulting in low user efficiency and a poor user experience.

Method used

It adopts a touch-sensing module, including a PCB motherboard and an FPC touch matrix flexible board. The writing mode can be switched by touching the pen barrel with a finger, and the line thickness, color and pen type can be changed, which simplifies the operation process.

Benefits of technology

Switching between writing modes can be done without pulling down the writing settings interface, improving the efficiency of drawing and note-taking.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a capacitance pen capable of switching writing modes through touch sensing, which comprises a touch sensing module, the touch sensing module comprises a PCB (printed circuit board) mainboard for processing touch signals, an embedded limiting clamping shell and an FPC (flexible printed circuit) touch matrix soft board, and the FPC touch matrix soft board is provided with matrix copper foil; the PCB main board for processing the touch signal is used for processing a touch sensing signal and processing the signal; the interior of the embedded limiting clamping shell is used for installing and fixing the PCB mainboard, the FPC touch matrix soft board is arranged outside the embedded limiting clamping shell in a sleeving mode, and distance induction can be achieved when a finger touches the pen holding position. A user can change the type or tool of the pen by clicking the pen holder in the FPC soft board sensing area of the capacitive pen by single and double strokes, the thickness of lines can be changed by sliding up and down, the color of the lines can be modified by sliding left and right, the capacitive pen is triggered to be turned on and turned off by single-point long-press touch sensing, code data is transmitted to matched touch equipment, a writing setting interface does not need to be pulled down, and the user experience is improved. Therefore, the writing setting of the pen can be switched, and the efficiency of draft and note work is improved.
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Description

Technical Field

[0001] This utility model relates to the field of capacitive pen technology, and in particular to a capacitive pen that switches writing modes by touch sensing. Background Technology

[0002] With the continuous development of technology, capacitive styluses assembled using electronic components can be used for drawing and writing on touchscreen digital products. Furthermore, during use, users can switch and change the type or tool of the stylus, line color, and line thickness according to their needs.

[0003] However, currently, users can only change the writing mode through the writing settings interface. Furthermore, this interface is typically collapsed while the user is writing to provide a larger writing surface. For users who need to switch pen types, tools, line colors, and line thicknesses multiple times when drawing or writing notes, repeatedly pulling down and collapsing the writing settings interface to switch writing modes is cumbersome and negatively impacts their efficiency and the overall experience of touchscreen writing and drawing. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a capacitive pen that allows for touch-sensitive switching of writing modes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A capacitive pen with touch-sensitive writing mode switching includes a pen barrel, a pen tip, a charging module, and a touch-sensing module. The touch-sensing module is located at the grip area of ​​the pen barrel and is used to detect the touch signal of the user's finger. The touch-sensing module includes: a PCB motherboard for processing touch signals, an embedded limiting clip, and an FPC touch matrix flexible circuit board.

[0007] The FPC touch matrix flexible board has a matrix copper foil to perform touch sensing recognition around the pen barrel at the pen grip area and transmit the touch sensing signal to the PCB motherboard that processes the touch signal;

[0008] The PCB motherboard for processing touch signals is used to process touch-sensing signals, and after processing the signals, it transmits the corresponding code value to the matching device.

[0009] The embedded limiting card shell is used to install and fix the PCB motherboard that processes touch signals. The FPC touch matrix flexible board is wrapped around the embedded limiting card shell, and can be sensed remotely by holding a finger or stylus.

[0010] Preferably, the pen barrel contains a power battery that supplies power to the motherboard, the touch sensing module is interference-fitted to the pen barrel, and the FPC touch matrix flexible board is mounted at the pen grip and fits in the gap between the outside of the embedded limiting clip and the inside of the pen barrel.

[0011] Preferably, the indicator light is mounted in an external groove on the pen barrel.

[0012] Preferably, the pen tip is connected to the PCB motherboard that processes touch signals via a transmitting electrode, and the transmitting electrode and the pen tip are connected by a thread.

[0013] Preferably, the charging module is installed in the slot at the other end of the pen barrel, with one end of the charging module electrically connected to the PCB motherboard and the other end electrically connected to the battery.

[0014] Preferably, the pen cap and the top of the pen barrel are interference-fitted together via a slot.

[0015] Compared with existing technologies, the beneficial effects of this utility model are:

[0016] This invention utilizes a ring-shaped capacitive touch-sensitive FPC matrix copper foil flexible circuit board. Single or double taps on the FPC flexible circuit board's sensing area allow users to change the pen type or tool, slide up and down to change line thickness, slide left and right to change line color, and a single long press triggers the pen's power on / off state, transmitting code data to the paired touch device. This eliminates the need to access the writing settings interface, allowing for seamless switching of pen settings and improving the efficiency of line drawing and note-taking. Attached Figure Description

[0017] Figure 1 This is a structural appearance drawing of this utility model;

[0018] Figure 2 This is an internal sectional view of the present invention;

[0019] Figure 3 This is an exploded view of the entire utility model.

[0020] In the diagram: 1-Pen tip, 2-Tip sleeve, 3-Emitting electrode, 4-Embedded limiting clip, 5-FPC touch matrix flexible board, 6-PCB motherboard, 7-Battery, 8-Pen barrel, 9-Indicator light, 10-Charging module, 11-Pen cap. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1 A capacitive pen with touch-sensitive writing mode switching, wherein the pen grip of the pen barrel 8 can be capacitively touched to capture touch input signals, the end near the tip 2 is fully open and has an internal thread that is threaded to the external thread of the tip 2, and the other end has a mounting slot for installing the charging module 10, and the port has a slot that is interference-fitted with the pen cap 11.

[0023] A touch-sensing module, located at the pen grip of the pen 8, is used to detect the touch signal from the user's finger. The touch-sensing module includes: a PCB motherboard 6 for processing touch signals, an embedded retaining sleeve 4, and an FPC touch matrix flexible board 5. The FPC touch matrix flexible board 5 has a matrix of copper foil to detect touch around the pen grip of the pen 8. The touch signal is transmitted to the PCB motherboard 6, which processes the signal and transmits the corresponding code value to a compatible device via Bluetooth, Wi-Fi, or other wireless technologies. The embedded retaining sleeve 4 secures the PCB motherboard 6, and the FPC touch matrix flexible board 5 is annularly fitted over the embedded retaining sleeve, allowing for contactless sensing when a finger touches the pen grip area of ​​the pen 8.

[0024] The pen barrel contains a power battery 7 that supplies power to the PCB motherboard 5, and the two are electrically connected. The touch sensing module is interference-fitted to the pen barrel 8, wherein the FPC touch matrix flexible board 5 is mounted at the pen grip and fits in the gap between the outside of the embedded limiting clip 4 and the inside of the pen barrel 8.

[0025] Indicator light 9 is installed in the external groove of the pen barrel. When a touch is detected, the corresponding indicator light 9 flashes to alert the user.

[0026] The pen tip 1 is connected to the PCB motherboard 6 via the emitting electrode 3, and the emitting electrode 3 and the pen tip 1 are connected by threads.

[0027] The charging module 10 is installed in the slot at the other end of the pen barrel 8. One end of the charging module 10 is electrically connected to the PCB motherboard 6, and the other end is electrically connected to the battery 7. The pen cap 11 is interference-fitted to the top of the pen barrel 8 through the slot, restricting the movement of the charging module 10.

[0028] This embodiment provides a capacitive pen with touch-sensitive writing mode switching. The writing mode of the capacitive pen can be changed by touching the position of the pen grip to change the capacitor of the FPC matrix copper foil flexible board. The capacitive pen can change the writing mode, including the thickness of the writing line, the color of the writing line, the pen to be used, and the power on / off function.

[0029] Currently, most capacitive pens on the market exchange data by changing the writing mode on the touchscreen's writing panel, such as adjusting line thickness, line color, and writing tool. Alternatively, they may use a single mechanical button. This approach is limited in functionality and cumbersome. In contrast, the touch-sensitive capacitive pen provided in this embodiment offers a more convenient and efficient way to switch writing modes compared to common capacitive pen methods.

[0030] This embodiment provides a capacitive pen with touch-sensitive writing mode switching. The writing function is switched by changing the capacitance of the FPC matrix copper foil flexible board in the cylindrical area of ​​the pen grip. The writing function is changed by sliding: single or double taps on the FPC flexible board sensing area of ​​the pen barrel change the pen type or tool; sliding up and down changes the line thickness; sliding left and right changes the line color; and a single long press triggers the pen's power on / off state.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A capacitive pen with touch-sensitive switching writing mode, characterized in that, The pen includes a cap, a barrel, a tip, a charging module, and a touch-sensing module. The touch-sensing module is located at the grip area of ​​the barrel and is used to detect the touch signal from the user's finger. The touch-sensing module includes: a PCB motherboard for processing touch signals, an embedded limiting clip, and an FPC touch matrix flexible circuit board. The FPC touch matrix flexible board has a matrix copper foil to perform touch sensing recognition around the pen barrel at the pen grip area and transmit the touch sensing signal to the PCB motherboard that processes the touch signal; The PCB motherboard for processing touch signals is used to process touch-sensing signals, and after processing the signals, it transmits the corresponding code value to the matching device. The embedded limiting card shell is used to install and fix the PCB motherboard that processes touch signals. The FPC touch matrix flexible board is wrapped around the embedded limiting card shell, and can be sensed remotely by holding a finger or stylus.

2. A capacitive pen for switching writing modes via touch sensing according to claim 1, characterized in that, The pen barrel contains a power battery that supplies power to the motherboard. The touch sensing module is interference-fitted to the pen barrel. The FPC touch matrix flexible board is mounted at the pen grip and fits into the gap between the outside of the embedded limiting clip and the inside of the pen barrel.

3. A capacitive pen for switching writing modes via touch sensing according to claim 1, characterized in that, An indicator light is installed in the external groove of the pen barrel.

4. A capacitive pen for switching writing modes via touch sensing according to claim 1, characterized in that, The pen tip is connected to the PCB motherboard that processes touch signals via a transmitting electrode, and the transmitting electrode and the pen tip are connected by a thread.

5. A capacitive pen for switching writing modes via touch sensing according to claim 2, characterized in that, The charging module is installed in the slot at the other end of the pen barrel. One end of the charging module is electrically connected to the PCB motherboard, and the other end is electrically connected to the battery.

6. A capacitive stylus for switching writing modes via touch sensing according to claim 1, characterized in that, The pen cap and the top of the pen barrel are tightly fitted together by an interference fit through a groove.