Touch pen point

Abstract

A touch pen point comprises a head section and an extension section, the head section is in a spherical segment shape and has a first width and a first length, the extension section extends out from one end of the head section, the end, opposite to the head section, of the extension section has a second width, and the head section and the extension section have a second length, the ratio of the first length to the first width ranges from 0.15 to 0.9, the first length is smaller than the second length, the ratio of the first width to the second width is larger than or equal to 1.05, and when the touch pen point is in a vertical writing state or an inclined writing state at the same touch height, the first length is smaller than the second length. The sensed part of the touch pen point in the vertical writing state is larger than or equal to the sensed part of the touch pen point in the inclined writing state.

Description

Technical Field

[0001] The present invention relates to a touch pen tip, and more particularly to a touch pen tip applied to a touch pen. Background Art

[0002] The touch pen is applied to an electronic device with a touch panel, and a user can perform operations such as writing and drawing on the touch panel through the touch pen.

[0003] When the touch pen is applied to occasions such as collaborative operations, different users will respectively hold different touch pens to operate on the same touch panel. Since the pen diameters of the touch pen tips of different touch pens are different, and when the writing state of each touch pen tip changes at different angles, the sensing range of the part of the touch pen tip that can be sensed is large. Therefore, the sensing ranges of the touch pen tips of different touch pens are likely to overlap with each other, making the touch panel unable to distinguish the touch areas of different touch pen tips, thus resulting in misjudgment of touch recognition. Summary of the Invention

[0004] Therefore, one object of the present invention is to provide a touch pen tip that can overcome at least one drawback of the background art.

[0005] The touch pen tip according to the present invention includes a head section and an extension section. The head section is in the shape of a spherical segment and has a first width and a first length. The extension section extends from one end of the head section. The extension section has a second width at the end opposite to the head section. The head section and the extension section have a second length. The ratio of the first length to the first width is between 0.15 and 0.9. The first length is less than the second length. The ratio of the first width to the second width is greater than or equal to 1.05. When the touch pen tip is in a vertical writing state or an inclined writing state at the same touch height, the sensed part of the touch pen tip in the vertical writing state is greater than or equal to the sensed part of the touch pen tip in the inclined writing state.

[0006] For the touch pen tip of the present invention, the touch pen tip further includes a neck section extending from the end of the extension section opposite to the head section. The neck section has a third length, and the third length is less than the sum of the first width and the first length.

[0007] For the touch pen tip of the present invention, the extension section has a frustum of a cone surface connected between the head section and the neck section, and the outer diameter of the extension section gradually decreases from the end adjacent to the head section towards the neck section.

[0008] For the touch pen tip of the present invention, the touch pen tip further includes a body section extending from the end of the neck section opposite to the extension section.

[0009] For the touch pen tip of the present invention, the extension section has a frustum conical surface connected to the head section, and the outer diameter of the extension section tapers from one end adjacent to the head section towards the direction away from the head section.

[0010] For the touch pen tip of the present invention, the touch pen tip further includes a neck section extending from one end of the extension section opposite to the head section, and a body section extending from one end of the neck section opposite to the extension section. The neck section has a first truncated conical surface connected to the extension section, and a second truncated conical surface connected between the first truncated conical surface and the body section. The outer diameter of the neck section corresponding to the first truncated conical surface increases from the extension section towards the body section, and the outer diameter of the neck section corresponding to the second truncated conical surface increases from the first truncated conical surface towards the body section.

[0011] For the touch pen tip of the present invention, the touch pen tip further includes a neck section extending from one end of the extension section opposite to the head section, and a body section extending from one end of the neck section opposite to the extension section. The neck section has a circumferential surface connected between the extension section and the body section, and the outer diameter of the neck section corresponding to the circumferential surface is uniform.

[0012] For the touch pen tip of the present invention, the touch pen tip further includes a neck section extending from one end of the extension section opposite to the head section, and a body section extending from one end of the neck section opposite to the extension section. The neck section has a concave arc surface connected between the extension section and the body section.

[0013] For the touch pen tip of the present invention, the touch pen tip further includes a body section extending from one end of the extension section opposite to the head section.

[0014] For the touch pen tip of the present invention, the head section has an arc surface, and the arc surface is a semi-circular arc surface, or a major arc surface or a minor arc surface.

[0015] The beneficial effect of the present invention lies in that by means of the design method in which the ratio of the first length to the first width is between 0.15 and 0.9, the first length is less than the second length, and the ratio of the first width to the second width is greater than or equal to 1.05, when the touch pen tip is in the vertical writing state or the inclined writing state at the same touch height, the sensed part of the touch pen tip in the vertical writing state will be greater than or equal to the sensed part of the touch pen tip in the inclined writing state. Thereby, the sensing ranges of the touch pen tip and the touch pen tip of the previous pen diameter do not overlap with each other, and the sensing range of the touch pen tip does not affect the sensing range design of the touch pen tip of the next pen diameter. Description of the Drawings

[0016] Figure 1 is a side view of the first embodiment of the touch pen tip of the present invention;

[0017] Figure 2 is an incomplete side view of the first embodiment and the touch panel, showing that the touch pen tip is in a vertical writing state;

[0018] Figure 3 is an incomplete side view of the first embodiment and the touch panel, showing that the touch pen tip is in an inclined writing state;

[0019] Figure 4 is an incomplete side view of the first embodiment, the touch panel and another touch pen tip;

[0020] Figure 5 is an incomplete side view of the first embodiment, the touch panel and another touch pen tip;

[0021] Figure 6 is a side view of the second embodiment of the touch pen tip of the present invention;

[0022] Figure 7 is an incomplete side view of the second embodiment and the touch panel;

[0023] Figure 8 is an incomplete side view of the second embodiment and the touch panel;

[0024] Figure 9 is a side view of the third embodiment of the touch pen tip of the present invention;

[0025] Figure 10 is an incomplete side view of the third embodiment and the touch panel;

[0026] Figure 11 is an incomplete side view of the third embodiment and the touch panel;

[0027] Figure 12 is a side view of the fourth embodiment of the touch pen tip of the present invention;

[0028] Figure 13 is an incomplete side view of the fourth embodiment and the touch panel;

[0029] Figure 14 is an incomplete side view of the fourth embodiment and the touch panel;

[0030] Figure 15 is a side view of the fifth embodiment of the touch pen tip of the present invention;

[0031] Figure 16is an incomplete side view of the fifth embodiment and the touch panel;

[0032] Figure 17 is an incomplete side view of the fifth embodiment and the touch panel. Detailed implementation manners

[0033] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0034] Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

[0035] Refer to Figure 1 and Figure 2 , a first embodiment of the touch pen tip 1 of the present invention is adapted to be applied to a touch pen (not shown in the figure) and used to connect to the pen shaft (not shown in the figure) of the touch pen. The touch pen tip 1 is used to touch the surface 21 of the touch panel 2.

[0036] For the convenience of subsequent description, the width direction D1 of the touch pen tip 1 and the length direction D2 perpendicular to the width direction D1 are defined.

[0037] The touch pen tip 1 includes a head section 11, an extension section 12, a neck section 13, and a body section 14. The head section 11 is in the shape of a spherical segment and has a curved surface 111. In this first embodiment, the curved surface 111 is a semi-circular curved surface, but it is not limited thereto. The curved surface 111 can also be a major arc surface or a minor arc surface. The head section 11 has a first width W1 taken along the width direction D1 and a first length L1 taken along the length direction D2. The extension section 12 extends from one end of the head section 11. The neck section 13 extends from the end of the extension section 12 opposite to the head section 11.

[0038] The extension section 12 has a frustum conical surface 121 connected between the head section 11 and the neck section 13. The outer diameter of the extension section 12 gradually decreases from the end adjacent to the head section 11 towards the neck section 13. The end of the extension section 12 opposite to the head section 11 has a second width W2 taken along the width direction D1. The head section 11 and the extension section 12 have a second length L2 taken along the length direction D2.

[0039] The neck section 13 has a third length L3 taken along the length direction D2. The body section 14 extends from one end of the neck section 13 opposite to the extension section 12. The body section 14 is used to connect to the pen shaft. The neck section 13 has a first truncated conical surface 131 connected to the truncated conical surface 121, and a second truncated conical surface 132 connected between the first truncated conical surface 131 and the body section 14. The outer diameter of the neck section 13 corresponding to the first truncated conical surface 131 gradually increases from the extension section 12 towards the body section 14. The outer diameter of the neck section 13 corresponding to the second truncated conical surface 132 gradually increases from the first truncated conical surface 131 towards the body section 14.

[0040] In this first embodiment, the ratio of the first length L1 to the first width W1 is between 0.15 and 0.9. The first length L1 is less than the second length L2. The ratio of the first width W1 to the second width W2 is greater than or equal to 1.05. The third length L3 is less than the sum of the first width W1 and the first length L1.

[0041] Refer to Figure 2 and Figure 3 , Figure 2 and Figure 3 show the touch pen tip 1 applied in an infrared induction touch occasion. Among them, the dotted line spaced above the surface 21 of the touch panel 2 represents the induction area S of infrared induction. The vertical distance between the induction area S and the surface 21 is defined as the touch height H. When the arc surface 111 of the touch pen tip 1 touches the surface 21 of the touch panel 2, a writing angle A is formed between the touch pen tip 1 and the surface 21. When the writing angle A is 90 degrees, the touch pen tip 1 is in a vertical writing state (as shown in Figure 2 ). At this time, the touch pen tip 1 intersects the induction area S with the head section 11 for example. The touch pen tip 1 has an induction part S1 that can be sensed by the induction area S. When the writing angle A is less than 90 degrees, the touch pen tip 1 is in an inclined writing state (as shown in Figure 3 ). At this time, the head section 11 and the extension section 12 of the touch pen tip 1 intersect the induction area S. The touch pen tip 1 has an induction part S2 that can be sensed by the induction area S.

[0042] Refer to Figure 1 , Figure 2 and Figure 3, by designing such that the ratio of the first length L1 to the first width W1 is between 0.15 and 0.9, the first length L1 is less than the second length L2, and the ratio of the first width W1 to the second width W2 is greater than or equal to 1.05, when the touch pen tip 1 is in the vertical writing state or the inclined writing state at the same touch height H, the sensed portion S1 of the touch pen tip 1 in the vertical writing state will be greater than or equal to the sensed portion S2 of the touch pen tip 1 in the inclined writing state. In this first embodiment, the sensed portion S1 and the sensed portion S2 are each exemplified by the distance taken on the sensing area S, but not limited thereto. With different sensing and judgment mechanisms, the sensed portion S1 and the sensed portion S2 can each also be the cross-sectional area taken on the sensing area S. The sensed portion S1 and the sensed portion S2 are respectively the two end point values of the sensing range that the touch pen tip 1 can be sensed by the sensing area S when changing between the vertical writing state and the inclined writing state.

[0043] By designing the head section 11 to be in a spherical segment shape, the change amplitude of the pen diameter when the touch pen tip 1 changes between the vertical writing state and the inclined writing state is small, thereby being able to reduce the sensing range. In addition, by designing the frustum conical surface 121 of the extension section 12 and the outer diameter of the extension section 12 to gradually decrease in the direction of the neck section 13, the range where the extension section 12 intersects with the sensing area S when the touch pen tip 1 is in the inclined writing state can be reduced. Thereby, the sensed portion S2 of the touch pen tip 1 in the inclined writing state can be made close to or the same as the sensed portion S1, so as to be able to reduce the change amplitude of the pen diameter and the sensing range.

[0044] By designing the third length L3 to be less than the sum of the first width W1 and the first length L1, the length of the neck section 13 can be designed to be longer in accordance with the size of the head section 11, thereby being able to improve the structural strength of the neck section 13 connected between the extension section 12 and the body section 14. In addition, by designing the neck section 13 to be connected to the frustum conical surface 121 of the extension section 12 and the body section 14 through the first truncated conical surface 131 and the second truncated conical surface 132 respectively, the outer diameter change of the neck section 13 can gradually increase from the extension section 12 in the direction of the body section 14, so as to avoid the situation that excessive outer diameter change causes stress concentration and is prone to fracture.

[0045] Specifically, in this first embodiment, the first width W1 is, for example, 5.6 mm. The second width W2 is, for example, 5.3 mm. The first length L1 is, for example, 2.8 mm. The second length L2 is, for example, 7 mm. The third length L3 is, for example, 1.6 mm. The ratio of the first length L1 to the first width W1 is 0.5. The 2.8 mm of the first length L1 is less than the 7 mm of the second length L2. The ratio of the first width W1 to the second width W2 is approximately 1.05. The 1.6 mm of the third length L3 is less than the sum of 8.4 mm of the first width W1 and the first length L1. When the writing angle A is, for example, 30 degrees and the touch height H is, for example, 1.5 mm, the sensed portion S1 is equal to the sensed portion S2. It should be noted that the foregoing values of the touch pen tip 1 can be adjusted correspondingly according to the different required writing angle A and touch height H to meet the design conditions of the touch pen tip 1, and are not limited to the numerical values disclosed in this first embodiment.

[0046] Refer to Figure 4 and Figure 5 , in application, multiple touch pen tips with different pen diameters will be designed based on the structure of the touch pen tip 1 to form a touch pen tip group for common use. The following will be described in the way that the touch pen tip 1 and another touch pen tip 1' with a pen diameter smaller than that of the touch pen tip 1 cooperate on the same touch panel 2. It has been described in the foregoing paragraph that the sensed portion S1 of the touch pen tip 1 in the vertical writing state will be greater than or equal to the sensed portion S2 of the touch pen tip 1 in the inclined writing state. Similarly, it can be known that the sensed portion S1' of the touch pen tip 1' in the vertical writing state will also be greater than or equal to the sensed portion S2' of the touch pen tip 1' in the inclined writing state. Specifically, in this first embodiment, since the sensed portion S1 of the touch pen tip 1 is equal to the sensed portion S2, therefore, the sensed portion S1' of the touch pen tip 1' will also be equal to the sensed portion S2'. Thereby, the two end point values of the sensing range of the touch pen tip 1 are the same, and the two end point values of the sensing range of the touch pen tip 1' are also the same. Since the pen diameters of the touch pen tips 1 and 1' are different, therefore, the sensing ranges of the touch pen tip 1 and the touch pen tip 1' will not overlap with each other, enabling the touch panel 2 to clearly distinguish the respective touch areas of the touch pen tips 1 and 1' and avoid the occurrence of touch recognition misjudgment.

[0047] Since the sensed portion S1 of the touch pen tip 1 in the vertical writing state is greater than or equal to the sensed portion S2 of the touch pen tip 1 in the inclined writing state, the sensing ranges of the touch pen tip 1 and the touch pen tip 1' of the previous pen diameter do not overlap with each other, and the sensing range of the touch pen tip 1 does not affect the sensing range design of the touch pen tip of the next pen diameter (the pen diameter is greater than the pen diameter of the touch pen tip 1). The aforementioned touch pen tip 1' of the previous pen diameter refers to the touch pen tip in the touch pen tip group with a pen diameter smaller than the pen diameter of the touch pen tip 1 and closest to the pen diameter of the touch pen tip 1, and the touch pen tip of the next pen diameter refers to the touch pen tip in the touch pen tip group with a pen diameter greater than the pen diameter of the touch pen tip 1 and closest to the pen diameter of the touch pen tip 1.

[0048] It should be noted that when the touch pen tip 1 of this first embodiment is in the vertical writing state, although the intersection of the head section 11 and the sensing area S is taken as an example for illustration, it is not limited thereto. As the height position of the sensing area S is different, the touch pen tip 1 may also intersect the sensing area S through the extension section 12. In addition, the touch pen tip 1 can also be applied to touch occasions of resistive sensing or capacitive sensing, and is not limited to touch occasions of infrared sensing.

[0049] Refer to Figure 6 , the second embodiment of the touch pen tip 1 of the present invention has a general structure substantially the same as that of the first embodiment, except for the shape of the touch pen tip 1.

[0050] Refer to Figure 6 , Figure 7 and Figure 8 , the neck section 13 has a circumferential surface 133 connecting the frustum conical surface 121 connected to the extension section 12 and the body section 14. The outer diameter of the neck section 13 corresponding to the circumferential surface 133 is uniform. The first width W1 is, for example, 9 mm. The second width W2 is, for example, 8.2 mm. The first length L1 is, for example, 4 mm. The second length L2 is, for example, 8.5 mm. The third length L3 is, for example, 6 mm. The ratio of the first length L1 to the first width W1 is about 0.44. The 4 mm of the first length L1 is less than the 8.5 mm of the second length L2. The ratio of the first width W1 to the second width W2 is about 1.10. The 6 mm of the third length L3 is less than the sum of the first width W1 and the first length L1, which is 13 mm. When the writing angle A is, for example, 45 degrees and the touch height H is, for example, 2.5 mm, the sensed portion S1 is greater than the sensed portion S2. Thus, this second embodiment provides another implementation aspect of the touch pen tip 1.

[0051] Refer to Figure 9, the third embodiment of the touch pen tip 1 of the present invention has an overall structure substantially the same as that of the first embodiment, except for the shape of the touch pen tip 1.

[0052] Refer to Figure 9 , Figure 10 and Figure 11 , the neck section 13 has a concave arc surface 134 between the frustum conical surface 121 connected to the extension section 12 and the body section 14. By connecting the concave arc surface 134 between the frustum conical surface 121 and the body section 14, the situation of stress concentration at the connection between the neck section 13 and the extension section 12 or at the connection between the neck section 13 and the body section 14 can be avoided. The first width W1 is, for example, 6 mm. The second width W2 is, for example, 3.69 mm. The first length L1 is, for example, 3 mm. The second length L2 is, for example, 7.88 mm. The third length L3 is, for example, 2.71 mm. The ratio of the first length L1 to the first width W1 is 0.5. The 3 mm of the first length L1 is less than the 7.88 mm of the second length L2. The ratio of the first width W1 to the second width W2 is approximately 1.63. The 2.71 mm of the third length L3 is less than the sum of the first width W1 and the first length L1, which is 9 mm. When the writing angle A is, for example, 45 degrees and the touch height H is, for example, 1.5 mm, the sensed portion S1 is equal to the sensed portion S2. Thus, the third embodiment provides another implementation aspect of the touch pen tip 1.

[0053] Refer to Figure 12 , the fourth embodiment of the touch pen tip 1 of the present invention has an overall structure substantially the same as that of the third embodiment, except for the shape of the touch pen tip 1.

[0054] Refer to Figure 12 , Figure 13 and Figure 14, the arc surface 111 of the head section 11 is a major arc surface. The first width W1 is, for example, 9.47 mm. The second width W2 is, for example, 5.23 mm. The first length L1 is, for example, 5.14 mm. The second length L2 is, for example, 7.83 mm. The third length L3 is, for example, 2.92 mm. The ratio of the first length L1 to the first width W1 is approximately 0.54. The 5.14 mm of the first length L1 is less than the 7.83 mm of the second length L2. The ratio of the first width W1 to the second width W2 is approximately 1.81. The 2.92 mm of the third length L3 is less than the sum of the first width W1 and the first length L1, which is 14.61 mm. When the writing angle A is, for example, 45 degrees and the touch height H is, for example, 2.5 mm, the sensed portion S1 is greater than the sensed portion S2. Thus, the fourth embodiment provides another implementation aspect of the touch pen tip 1.

[0055] Refer to Figure 15 , Figure 16 and Figure 17 , a fifth embodiment of the touch pen tip 1 of the present invention has an overall structure substantially the same as that of the third embodiment, except for the shape of the touch pen tip 1.

[0056] The arc surface 111 of the head section 11 is a minor arc surface. The body section 14 extends from the end of the extension section 12 opposite to the head section 11. The first width W1 is, for example, 9.5 mm. The second width W2 is, for example, 4.46 mm. The first length L1 is, for example, 5.225 mm. The second length L2 is, for example, 8.3 mm. The ratio of the first length L1 to the first width W1 is 0.55. The 5.225 mm of the first length L1 is less than the 8.3 mm of the second length L2. The ratio of the first width W1 to the second width W2 is approximately 2.13. When the writing angle A is, for example, 45 degrees and the touch height H is, for example, 0.5 mm, the sensed portion S1 is greater than the sensed portion S2. Thus, the fifth embodiment provides another implementation aspect of the touch pen tip 1.

[0057] In summary, for the touch pen tip 1 of each embodiment, by designing such that the ratio of the first length L1 to the first width W1 is between 0.15 and 0.9, the first length L1 is less than the second length L2, and the ratio of the first width W1 to the second width W2 is greater than or equal to 1.05, when the touch pen tip 1 is in the vertical writing state or the inclined writing state at the same touch height H, the sensed portion S1 of the touch pen tip 1 in the vertical writing state will be greater than or equal to the sensed portion S2 of the touch pen tip 1 in the inclined writing state. Thereby, the sensing ranges of the touch pen tip 1 and the touch pen tip 1' of the previous pen diameter do not overlap with each other, and the sensing range of the touch pen tip 1 does not affect the sensing range design of the touch pen tip of the next pen diameter, and the object claimed by the present invention can be truly achieved.

Claims

1. A touch pen tip, characterized in that: the touch pen tip includes a head section and an extension section. The head section is in the shape of a spherical segment and has a first width and a first length. The extension section extends from one end of the head section. The extension section has a second width at the end opposite to the head section. The head section and the extension section have a second length. The ratio of the first length to the first width is between 0.15 and 0.

9. The first length is less than the second length. The ratio of the first width to the second width is greater than or equal to 1.

05. When the touch pen tip is in a vertical writing state or an inclined writing state at the same touch height, the sensed portion of the touch pen tip in the vertical writing state is greater than or equal to the sensed portion of the touch pen tip in the inclined writing state.

2. The touch pen tip according to claim 1, characterized in that: the touch pen tip further includes a neck section extending from the end of the extension section opposite to the head section. The neck section has a third length, and the third length is less than the sum of the first width and the first length.

3. The touch pen tip according to claim 2, characterized in that: the extension section has a frustum of a cone surface connected between the head section and the neck section, and the outer diameter of the extension section tapers from the end adjacent to the head section towards the neck section.

4. The touch pen tip according to claim 2 or 3, characterized in that: the touch pen tip further includes a body section extending from the end of the neck section opposite to the extension section.

5. The touch pen tip according to claim 1, characterized in that: the extension section has a frustum of a cone surface connected to the head section, and the outer diameter of the extension section tapers from the end adjacent to the head section towards the direction away from the head section.

6. The touch pen tip according to claim 1 or 5, characterized in that: the touch pen tip further includes a neck section extending from the end of the extension section opposite to the head section, and a body section extending from the end of the neck section opposite to the extension section. The neck section has a first truncated cone surface connected to the extension section, and a second truncated cone surface connected between the first truncated cone surface and the body section. The outer diameter of the neck section corresponding to the first truncated cone surface increases from the extension section towards the body section. The outer diameter of the neck section corresponding to the second truncated cone surface increases from the first truncated cone surface towards the body section.

7. The touch pen tip according to claim 1 or 5, characterized in that: the touch pen tip further includes a neck section extending from the end of the extension section opposite to the head section, and a body section extending from the end of the neck section opposite to the extension section. The neck section has a circumferential surface connected between the extension section and the body section, and the outer diameter of the neck section corresponding to the circumferential surface is uniform.

8. The touch pen tip according to claim 1 or 5, characterized in that: The touch pen tip further includes a neck section extending from an end of the extension section opposite to the head section, and a body section extending from an end of the neck section opposite to the extension section. The neck section has a concave arc surface connected between the extension section and the body section.

9. The touch pen tip according to claim 1 or 5, wherein: the touch pen tip further includes a body section extending from an end of the extension section opposite to the head section.

10. The touch pen tip according to claim 1, wherein: the head section has an arc surface, and the arc surface is a semi-circular arc surface, or a major arc surface or a minor arc surface.

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