Electronic pen and electronic device
By setting staggered gaps and interference fits in the pressure-sensitive film layer of the electronic pen, the problem of pen tube cracking caused by bulging at the gap position of the pressure-sensitive film layer is solved, improving the reliability of the device and the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- VIVO MOBILE COMM CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-08-04
AI Technical Summary
The pressure-sensitive film in existing electronic pens is prone to bulging at the gap, which may lead to the pen tube cracking and failure.
By setting staggered gaps between the touch layer and the pressure-sensitive layer of the pressure-sensitive film, the bulging of the touch part and the pressure-sensitive part is reduced, the stress concentration at the gap position is improved, and the pressure-sensitive film layer is tightly attached to the pen tube by using an interference fit.
This reduces the bulging of the pressure-sensitive diaphragm, decreases the pen tube damage rate, and improves user experience and device reliability.
Smart Images
Figure CN224595093U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of electronic pen technology, specifically relating to an electronic pen and an electronic device. Background Technology
[0002] With the advancement of technology and the needs of users, the demand for stylus functions is increasing. Users' needs for stylus pens are no longer limited to touch functions, but also require stylus pens that can sense the pressure of the user's gestures. Currently, the new generation of stylus pens on the market have added pressure-sensitive membrane functions.
[0003] The current pressure-sensitive membrane consists of three layers. The top layer enables touch functionality, the bottom layer enables pressure sensitivity, and the middle layer serves as the wiring connecting the top and bottom layers to the motherboard. Each of the top and bottom layers has multiple zones, allowing each zone to sense changes in the user's gestures. However, due to the zoned design of the pressure-sensitive membrane, gaps exist between the areas. Since there is no copper layer inside these gaps, the strength is weak. When the pressure-sensitive membrane is wrapped around a steel tube, these gaps are more prone to bulging. This stress concentration at the bulging areas poses a risk of the pen tube cracking and failing. Utility Model Content
[0004] This application aims to provide an electronic pen and electronic device that solves the risk of pen tube cracking and failure caused by bulging at the gap position in the pressure-sensitive film in the related technology.
[0005] To solve the above-mentioned technical problems, this application is implemented as follows:
[0006] In a first aspect, embodiments of this application provide an electronic pen, comprising:
[0007] Support tube;
[0008] A pressure-sensitive film layer is sleeved outside the support tube. The pressure-sensitive film layer includes a touch layer, a connecting layer and a pressure-sensitive layer stacked together. The connecting layer is located between the touch layer and the pressure-sensitive layer. Both the touch layer and the pressure-sensitive layer are electrically connected to the connecting layer. The touch layer is sleeved outside the connecting layer. The touch layer includes multiple touch parts in the circumferential direction of the support tube. A first gap is provided between two adjacent touch parts. The pressure-sensitive layer includes multiple pressure-sensitive parts in the circumferential direction of the support tube. A second gap is provided between two adjacent pressure-sensitive parts.
[0009] Wherein, along the opening direction of the first gap, at least a portion of the first gaps are misaligned with the second gaps, or along the opening direction of the second gaps, at least a portion of the second gaps are misaligned with the first gaps.
[0010] Secondly, embodiments of this application provide an electronic device, including:
[0011] The electronic pen in the first aspect.
[0012] In the embodiments of this application, at least a portion of the first gaps and the second gaps are staggered along the opening direction of the first gap, or at least a portion of the second gaps and the first gaps are staggered along the opening direction of the second gap. With these arrangements, the touch portion in the touch layer and the pressure-sensitive portion in the pressure-sensitive layer are staggered by a certain distance. The outer touch portion can press against the inner pressure-sensitive portion, thereby reducing the bulging degree of the touch portion and thus reducing the overall bulging degree of the pressure-sensitive film layer. Furthermore, by staggering the pressure-sensitive portion and the touch portion, the weaker positions of the pressure-sensitive layer and the touch layer are separated, improving the problem of localized stress concentration in the pen tube caused by bulging at the gap position, reducing the risk of pen tube cracking, and helping to reduce the damage rate of the electronic pen.
[0013] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0014] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0015] Figure 1 This is a schematic diagram of the structure of an electronic pen according to an embodiment of this application;
[0016] Figure 2 This is a schematic diagram of the structure of the pressure-sensitive film layer according to an embodiment of this application;
[0017] Figure 3 This is a partial structural schematic diagram of an electronic pen according to an embodiment of this application.
[0018] Figure label:
[0019] 100 Electronic pen, 110 Support tube, 111 Flat surface, 112 Curved surface, 120 Pressure-sensitive film layer, 121 Touch layer, 122 Pressure-sensitive layer, 123 Touch part, 124 First gap, 125 Pressure-sensitive part, 126 Second gap, 127 First sub-gap, 128 Second sub-gap, 129 Third sub-gap, 130 Fourth sub-gap, 140 Pen tube, 150 Connecting layer. Detailed Implementation
[0020] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0021] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0023] The following is combined with Figures 1-3 This application describes an electronic pen and an electronic device according to embodiments thereof.
[0024] Combination Figure 1 and Figure 2 As shown, in some embodiments of this application, an electronic pen 100 is proposed. The electronic pen 100 includes: a support tube 110 and a pressure-sensitive film layer 120. The pressure-sensitive film layer 120 is sleeved outside the support tube 110. The pressure-sensitive film layer 120 includes a touch layer 121, a connecting layer 150, and a pressure-sensitive layer 122 stacked together. The connecting layer is located between the touch layer 121 and the pressure-sensitive layer 122. Both the touch layer 121 and the pressure-sensitive layer 122 are electrically connected to the connecting layer 150. The touch layer 121 is sleeved outside the connecting layer 150. The touch layer 121 includes a plurality of touch portions 123 in the circumferential direction of the support tube 110. A first gap 124 is provided between two adjacent touch portions 123. The pressure-sensitive layer 122 includes a plurality of pressure-sensitive portions 125 in the circumferential direction of the support tube 110. A second gap 126 is provided between two adjacent pressure-sensitive portions 125. Along the opening direction of the first gap 124 ( Figure 1(As indicated by the arrow at A1), at least a portion of the first gaps 124 are misaligned with the second gap 126, or, along the opening direction of the second gap 126 ( Figure 1 (The arrow at A2 points to) At least some of the second gaps 126 are misaligned with the first gap 124.
[0025] A pressure-sensitive membrane layer 120 is sleeved on the support tube 110. The support tube 110 supports the pressure-sensitive membrane layer 120. The pressure-sensitive membrane layer 120 includes a touch layer 121, a connecting layer 150, and a pressure-sensitive layer 122. Typically, the pressure-sensitive layer 122 is attached to the support tube 110, and the touch layer 121 is disposed on the outer layer of the pressure-sensitive layer 122. This allows the touch layer 121 to receive the user's touch operation more sensitively, and also allows the pressure-sensitive layer 122 to receive pressure changes sensitively when it is effectively supported.
[0026] The touch layer 121 and the pressure-sensitive layer 122 are each provided with multiple partitions, so that different partitions can receive user operation commands. Specifically, along the circumference of the support tube 110 ( Figure 1 (As indicated by the arrow at point C), the touch layer 121 includes multiple touch portions 123, with adjacent touch portions 123 spaced apart to form a first gap 124 between adjacent touch portions 123. There are multiple touch portions 123, and also multiple first gaps 124. Similarly, the pressure-sensitive layer 122 includes multiple pressure-sensitive portions 125, with adjacent pressure-sensitive portions 125 spaced apart to form a second gap 126 between adjacent pressure-sensitive portions 125. There are multiple pressure-sensitive portions 125, and also multiple second gaps 126.
[0027] When a pressure-sensitive layer 122 is added to the touch layer 121, bulging will occur at the gap between the internal partitions of the pressure-sensitive layer 122 and the touch layer 121 when the pressure-sensitive layer 120 is wrapped around the support tube 110. When both layers bulge, the contrast between the hardness and softness of the solid structure and the gap will be more obvious, which will not only increase the degree of bulging, but also make the pressure-sensitive layer 120 more susceptible to damage.
[0028] Along the opening direction of the first gap 124, at least a portion of the first gaps 124 are staggered with the second gaps 126; or, along the opening direction of the second gaps 126, at least a portion of the second gaps 126 are staggered with the first gaps 124. With this configuration, the touch portion 123 in the touch layer 121 and the pressure-sensitive portion 125 in the pressure-sensitive layer 122 are staggered by a certain distance. The outer touch portion 123 can press against the inner pressure-sensitive portion 125, thereby reducing the bulging degree of the touch portion 123 and thus reducing the overall bulging degree of the pressure-sensitive film layer 120. Furthermore, by staggering the pressure-sensitive portion 125 and the touch portion 123, the weaker positions of the pressure-sensitive layer 122 and the touch layer 121 are separated, improving the problem of localized stress concentration in the pen tube 140 caused by bulging at the gap positions, reducing the risk of cracking of the pen tube 140, and helping to reduce the damage rate of the electronic pen 100.
[0029] Combination Figure 1 and Figure 2 As shown, in one possible embodiment, optionally, the plurality of first gaps 124 include first sub-gap 127, wherein a portion of the first sub-gap 127 is misaligned with the second gap 126 in the opening direction of the first sub-gap 127; or, the plurality of second gaps 126 include second sub-gap 128, wherein a portion of the second sub-gap 128 is misaligned with the first gap 124 in the opening direction of the second sub-gap 126.
[0030] One of the multiple first gaps 124 is a first sub-gap 127. A portion of the first sub-gap 127 is misaligned with the second gap 126, that is, another portion of the first sub-gap 127 is not misaligned with the second gap 126, thereby offsetting a portion of the weak position between the pressure-sensitive layer 122 and the touch layer 121, reducing the damage rate of the pen tube 140 and the pressure-sensitive film layer 120.
[0031] One of the multiple second gaps 126 is a second sub-gap 128. A portion of the second sub-gap 128 is misaligned with the first gap 124, that is, another portion of the second sub-gap 128 is not misaligned with the first gap 124, thereby offsetting a portion of the weak position between the pressure-sensitive layer 122 and the touch layer 121, reducing the damage rate of the pen tube 140 and the pressure-sensitive film layer 120.
[0032] In one possible embodiment, the plurality of first gaps 124 may optionally include first sub-gap 127, wherein, in the opening direction of the first sub-gap 127, the extension line of one side of the first sub-gap 127 coincides with the extension line of one side of the second gap 126; or, the plurality of second gaps 126 may include second sub-gap 128, wherein, in the opening direction of the second sub-gap 128, the extension line of one side of the second sub-gap 128 coincides with the extension line of one side of the first gap 124.
[0033] One of the multiple first gaps 124 is a first sub-gap 127. One side of the first sub-gap 127 is extended and coincides with one side of the second gap 126. This means that the first sub-gap 127 and the second gap 126 are exactly offset by the width of the first sub-gap 127. This offsets the weak positions between the pressure-sensitive layer 122 and the touch layer 121, reducing the damage rate of the pen tube 140 and the pressure-sensitive film layer 120.
[0034] One of the multiple second gaps 126 is a second sub-gap 128. One side of the second sub-gap 128 is extended and coincides with one side of the first gap 124. This means that the second sub-gap 128 and the first gap 124 are offset by the width of the second sub-gap 128. This offsets the weak positions between the pressure-sensitive layer 122 and the touch layer 121, reducing the damage rate of the pen tube 140 and the pressure-sensitive film layer 120.
[0035] In some embodiments, optionally, the plurality of first gaps 124 include first sub-gap 127, the entire first sub-gap 127 being offset from the second gap 126, and any side of the first sub-gap 127 being offset from the side of the second gap 126. Alternatively, the plurality of second gaps 126 include second sub-gap 128, the entire second sub-gap 128 being offset from the first gap 124, and any side of the second sub-gap 128 being offset from the side of the first gap 124.
[0036] One of the multiple first gaps 124 is a first sub-gap 127. The entire first sub-gap 127 is misaligned with the second gap 126. This means that the second gap 126 is not provided in the opening direction of the first sub-gap 127. Moreover, any side of the first sub-gap 127 is misaligned with the side of the second gap 126. This means that the misalignment width between the first sub-gap 127 and the second gap 126 is greater than the width of the first sub-gap 127. The strength of the side of the first sub-gap 127 and the side of the second gap 126 is relatively weak. By misaligning any side of the first sub-gap 127 with the side of the second gap 126, the weak positions between the pressure-sensitive layer 122 and the touch layer 121 are completely staggered, reducing the damage rate of the pen tube 140 and the pressure-sensitive film layer 120.
[0037] One of the multiple second gaps 126 is a second sub-gap 128. The entire second sub-gap 128 is misaligned with the first gap 124. This means that the first gap 124 is not provided in the opening direction of the second sub-gap 128. Moreover, any side of the second sub-gap 128 is misaligned with the side of the first gap 124. This means that the misalignment width between the second sub-gap 128 and the first gap 124 is greater than the width of the second sub-gap 128. The strength of the side of the second sub-gap 128 and the side of the first gap 124 is relatively weak. By misaligning any side of the second sub-gap 128 with the side of the first gap 124, the weak positions between the pressure-sensitive layer 122 and the touch layer 121 are completely staggered, reducing the damage rate of the pen tube 140 and the pressure-sensitive film layer 120.
[0038] Combination Figure 1 , Figure 2 and Figure 3 As shown, in one possible embodiment, optionally, the plurality of first gaps 124 include first sub-gap 127, and the second gap 126 with the smallest distance from the first sub-gap 127 is the second sub-gap 128. When the pressure-sensitive film layer 120 is unfolded and in a flat state, the center line of the first sub-gap 127 is L1, and the center line of the second sub-gap 128 is L2. The distance between L1 and L2 is C1, and the width of the first sub-gap 127 is C2, where C1 ≥ 2 × C2; or, the distance between L1 and L2 is C1, and the width of the second sub-gap is C3, where C1 ≥ 2 × C3.
[0039] To facilitate the definition of the misalignment dimensions of the first gap 124 and the second gap 126, this embodiment is described based on the pressure-sensitive film layer 120 being unfolded and in a flat state. The pressure-sensitive film layer 120 is in a flat state, that is, the pressure-sensitive film layer 120 has not yet been wound.
[0040] Draw the center line L1 of the first sub-gap 127 and the center line L2 of the second sub-gap 128. The distance between the center lines L1 and L2 is C1, and the width of the first sub-gap 127 is C2. This means that the misalignment width between the first sub-gap 127 and the second sub-gap 128 must be at least twice the width of the first sub-gap 127. This ensures that the weaker areas of the pressure-sensitive layer 122 and the touch layer 121 are effectively separated.
[0041] Alternatively, the center line L1 of the first sub-gap 127 and the center line L2 of the second sub-gap 128 can be drawn, with a distance C1 between the center lines L1 and L2, and a width C3 for the second sub-gap 128, where C1 ≥ 2 × C3. This means that the misalignment width between the first sub-gap 127 and the second sub-gap 128 must be at least twice the width of the second sub-gap 128. This ensures that the weaker areas of the pressure-sensitive layer 122 and the touch layer 121 are effectively separated.
[0042] Combination Figure 1 , Figure 2 and Figure 3 As shown, in one possible embodiment, C1 ≤ 1 mm.
[0043] If the second sub-gap 128 is misaligned too much with the first sub-gap 127, it will cause some of the pressure-sensitive parts 125 or some of the touch parts 123 to be too narrow, thereby reducing the signal collection of some pressure-sensitive parts 125 or some of the touch parts 123. This will make it difficult for the narrow pressure-sensitive parts 125 and the narrow touch parts 123 to accurately collect signals. In this solution, the width of the misalignment of the second sub-gap 128 with respect to the first sub-gap 127 is less than or equal to 1 mm, to ensure that all the pressure-sensitive parts 125 and the touch parts 123 can accurately collect signals.
[0044] Combination Figure 1 , Figure 2 and Figure 3 As shown, in one possible embodiment, optionally, 0.1mm ≤ C1 ≤ 0.15mm.
[0045] If the misalignment of the second sub-gap 128 compared to the first sub-gap 127 is too small, the previously weaker positions of the pressure-sensitive layer 122 and the touch layer 121 will be too close. If the misalignment of the second sub-gap 128 compared to the first sub-gap 127 is too large, it will result in some pressure-sensitive parts 125 and some touch parts 123 having excessively small widths. In this solution, the width of the misalignment of the second sub-gap 128 compared to the first sub-gap 127 is limited to between 0.1mm and 0.15mm to ensure that the previously weaker positions of the pressure-sensitive layer 122 and the touch layer 121 are far apart, and also to ensure that all pressure-sensitive parts 125 and touch parts 123 can accurately acquire signals.
[0046] Combination Figure 1 and Figure 2As shown, in one possible embodiment, optionally, one of the plurality of first gaps 124 is a third sub-gap 129, the maximum circumference of the third sub-gap 129 being greater than the maximum circumference of the other first gaps 124, and one of the plurality of second gaps 126 is a fourth sub-gap 130, the maximum circumference of the fourth sub-gap 130 being greater than the maximum circumference of the other second gaps 126, and the third sub-gap 129 and the fourth sub-gap 130 are aligned with each other along the opening direction of the third sub-gap 129.
[0047] Among the multiple first gaps 124, the first gap 124 with the largest circumference is the third sub-gap 129. The circumferences of the gaps between the multiple touch units 123 are not exactly the same. After the touch layer 121 is wound, there is usually a larger gap between the first touch unit 123 and the tail touch unit 123. Among the multiple second gaps 126, the second gap 126 with the largest circumference is the fourth sub-gap 130. The opening direction of the third sub-gap 129 and the fourth sub-gap 130 are aligned with each other, that is, the third sub-gap 129 and the fourth sub-gap 130 are not misaligned. When the touch part 123 and the pressure-sensitive part 125 are misaligned, it is necessary to adjust the length and position of some touch parts 123 and pressure-sensitive parts 125. However, the positions of the beginning and end of the multiple touch parts 123 and the positions of the beginning and end of the multiple pressure-sensitive parts 125 remain unchanged, thereby avoiding major modifications to the touch layer 121 and the pressure-sensitive layer 122 and reducing the processing difficulty of the touch layer 121 and the pressure-sensitive layer 122.
[0048] Combination Figure 1 and Figure 2 As shown, in one possible embodiment, the surface of the support tube 110 optionally includes a plane 111 and a curved surface 112, in the first direction ( Figure 1 The arrow at point H points in the middle (the first direction can be the radial direction of the support tube 110). A portion of the touch unit 123 and a portion of the pressure-sensitive unit 125 are directly opposite the plane 111, and the first gap 124 and the second gap 126 are directly opposite the curved surface 112.
[0049] A portion of the surface of the support tube 110 is a plane 111. A portion of the touch unit 123 and a portion of the pressure-sensitive unit 125 are positioned directly opposite the plane 111, allowing the user to easily press and operate the position of the plane 111. When pressing the position of the plane 111, in order to avoid pressing two touch units 123 or two pressure-sensitive units 125 simultaneously, the first gap 124 and the second gap 126 need to be offset from the position of the plane 111. The first gap 124 and the second gap 126 are positioned directly opposite the curved surface 112. This ensures that the degree of misalignment between the pressure-sensitive unit 125 and the touch unit 123 cannot be too large, thereby preventing a portion of the first gap 124 and a portion of the second gap 126 from being directly opposite the plane 111 due to offset.
[0050] Combination Figure 1 and Figure 2 As shown, in one possible embodiment, the electronic pen 100 may optionally include a pen tube 140, which is interference-fitted with the pressure-sensitive film layer 120.
[0051] The pen tube 140 is fitted onto the pressure-sensitive diaphragm layer 120 by an interference fit, so that the pressure-sensitive diaphragm layer 120 can fit tightly against the pen tube 140, reducing the degree of warping of some structures of the pressure-sensitive diaphragm layer 120, thereby reducing the damage rate of the pressure-sensitive diaphragm layer 120 and the pen tube 140.
[0052] In the embodiments of this application, the pressure-sensitive film layer 120 is wrapped around the support tube 110 and tightly fitted (interference fit) with the pen tube 140. The current pressure-sensitive film layer 120 consists of three layers: the top layer implements touch functionality, the bottom layer implements pressure sensitivity, and the middle layer serves as the connection trace between the top and bottom layers and the motherboard. To more accurately capture user gestures, the top and bottom layers are divided into multiple partitions, allowing each partition to sense changes in the user's gestures. These separate small areas are collectively referred to as "PADs (metal disks)." Both the top and bottom layers convert gestures / pressure into capacitive changes, which are then converted into electrical signals and transmitted to the motherboard through the middle layer, thereby analyzing the user's pressure / gesture and providing feedback.
[0053] The tightness of the fit between the pressure-sensitive film layer 120 and the support tube 110 and pen tube 140 directly affects signal collection and thus user experience. Currently, the method used is an interference fit combined with adhesive bonding of the pressure-sensitive film layer 120 to the support tube 110. However, due to the partitioned design of the pressure-sensitive film layer 120, there are gaps between the areas. Since there is no copper layer inside these gaps, only the substrate, the strength at these gap locations is weak. Therefore, during the winding process of the pressure-sensitive film layer 120, the contrast between the "PAD" and the gaps becomes more pronounced, causing the gap locations to bulge more easily after winding the support tube 110, resulting in a polygonal appearance. This leads to two problems:
[0054] First, the pressure-sensitive film layer 120 cannot be tightly attached to the support tube 110 near the gap position, which affects signal recognition and user experience.
[0055] 2. The resulting edge will increase the equivalent diameter of the pressure-sensitive film layer 120 and cause stress concentration in the pen tube 140 at the arched position of the edge, leading to cracking and failure of the pen tube 140.
[0056] The purpose of this embodiment is to propose a simple and low-cost pressure-sensitive membrane design to improve the pressure-sensitive experience and enhance the reliability of the pen tube 140. Without changing the wiring or the material of the pressure-sensitive membrane layer 120, it allows the pressure-sensitive membrane layer 120 to fit tightly against the support tube 110, effectively improving the user experience. The improvement involves staggering the upper and lower layers by a certain distance to increase overall rigidity and prevent localized arching caused by stress concentration at gaps during winding.
[0057] During the fabrication of the pressure-sensitive film layer 120, two layers (upper middle layer or middle lower layer) of the pressure-sensitive film layer 120 are printed first. When printing the traces of the third layer, the traces are offset by a certain distance in the horizontal direction. This distance needs to be greater than the gap between the PADs so that there are no places where the pressure-sensitive film layer 120 has excessively weak strength in the cross section. However, it cannot be offset too much to avoid the appearance of two different areas at the position of the stylus plane 111, which would affect signal collection.
[0058] For the pressure-sensitive diaphragm layer 120 in this project, in order to collect signals over the widest possible range, the gap between the "PADs" is designed to be 0.05mm, so the offset distance must be greater than 0.05mm. However, the offset will narrow the width of the last section at the end of the pressure-sensitive diaphragm layer 120, thereby reducing the signal collection in this area, and will also result in two "PAD" areas appearing in the plane 111 area, which will mislead signal acquisition and affect the user experience in this area. Currently, it is recommended to offset the gap by twice the distance, but no more than 1mm (in this embodiment, the offset is 0.1mm to 0.15mm).
[0059] When the pressure-sensitive film layer 120 is wrapped around the support tube 110, since there are no completely copper-free areas in the cross-section of the entire pressure-sensitive film layer 120, the overall rigidity is improved, so there is no stress concentration phenomenon, and it can well wrap the support tube 110. Furthermore, since the offset distance is very small, it will not affect the user experience.
[0060] Because the fit between the pressure-sensitive membrane layer 120 and the support tube 110 has been improved, the pressure in the pen tube 140 is also more uniform, and local stress concentration will not occur, reducing the risk of cracking of the pen tube 140.
[0061] This application adopts a method of offsetting the "PAD" areas of the touch layer 121 and the pressure-sensitive layer 122 of the pressure-sensitive film layer 120 by a certain distance, which improves the problem that the pressure-sensitive film layer 120 and the support tube 110 cannot be tightly attached due to the gap between the PAD areas in the traditional solution. This greatly improves the user's experience of the pressure-sensitive function and improves the problem of local stress concentration on the pen tube 140 caused by bulging at the gap position, reducing the risk of cracking of the pen tube 140.
[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0063] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.
Claims
1. An electronic pen, characterized in that, include: Support tube; A pressure-sensitive film layer is sleeved on the outside of the support tube. The pressure-sensitive film layer includes a touch layer, a connecting layer, and a pressure-sensitive layer stacked together. The connecting layer is located between the touch layer and the pressure-sensitive layer. Both the touch layer and the pressure-sensitive layer are electrically connected to the connecting layer. The touch layer is sleeved on the outside of the connecting layer. The touch layer includes multiple touch portions in the circumferential direction of the support tube, and a first gap is provided between two adjacent touch portions. The pressure-sensitive layer includes multiple pressure-sensitive portions in the circumferential direction of the support tube, and a second gap is provided between two adjacent pressure-sensitive portions. Wherein, along the opening direction of the first gap, at least a portion of the first gaps are misaligned with the second gap, or along the opening direction of the second gap, at least a portion of the second gaps are misaligned with the first gap.
2. The electronic pen according to claim 1, characterized in that, The plurality of first gaps includes a first sub-gap, wherein, in the opening direction of the first sub-gap, a portion of the first sub-gap is misaligned with the second gap; or The plurality of second gaps include second sub-gap, wherein a portion of the second sub-gap is misaligned with the first gap in the opening direction of the second sub-gap.
3. The electronic pen according to claim 1, characterized in that, The plurality of first gaps include first sub-gap, wherein, in the opening direction of the first sub-gap, the extension line of one side of the first sub-gap coincides with the extension line of one side of the second gap; or The plurality of second gaps include second sub-gap, wherein, in the opening direction of the second sub-gap, the extension line of one side of the second sub-gap coincides with the extension line of one side of the first gap.
4. The electronic pen according to claim 1, characterized in that, The plurality of first gaps include first sub-gap, the entire first sub-gap being offset from the second gap, and any side of the first sub-gap being offset from the side of the second gap; or The plurality of second gaps include second sub-gap, the entire second sub-gap being offset from the first gap, and any side of the second sub-gap being offset from the side of the first gap.
5. The electronic pen according to any one of claims 1 to 4, characterized in that, The plurality of first gaps include first sub-gap, and the second gap with the smallest distance from the first sub-gap is the second sub-gap. When the pressure-sensitive film layer is unfolded and in a flat state, the center line of the first sub-gap is L1, and the center line of the second sub-gap is L2. The distance between L1 and L2 is C1, and the width of the first sub-gap is C2, where C1 ≥ 2 × C2; or The distance between L1 and L2 is C1, and the width of the second sub-gap is C3, where C1 ≥ 2 × C3.
6. The electronic pen according to claim 5, characterized in that, C1≤1mm.
7. The electronic pen according to claim 5, characterized in that, 0.1mm≤C1≤0.15mm.
8. The electronic pen according to any one of claims 1 to 4, characterized in that, One of the plurality of first gaps is a third sub-gap, the maximum circumference of the third sub-gap being greater than the maximum circumference of the other first gaps; one of the plurality of second gaps is a fourth sub-gap, the maximum circumference of the fourth sub-gap being greater than the maximum circumference of the other second gaps; the third sub-gap and the fourth sub-gap are aligned with each other along the opening direction of the third sub-gap.
9. The electronic pen according to any one of claims 1 to 4, characterized in that, The surface of the support tube includes a plane and a curved surface, wherein, in a first direction, a portion of the touch portion and a portion of the pressure-sensitive portion face the plane, and the first gap and the second gap face the curved surface.
10. An electronic device, characterized in that, include: The electronic pen according to any one of claims 1 to 9.