CN111782067A - Touch pad device and notebook computer comprising same - Google Patents
Touch pad device and notebook computer comprising same Download PDFInfo
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- CN111782067A CN111782067A CN201910267367.2A CN201910267367A CN111782067A CN 111782067 A CN111782067 A CN 111782067A CN 201910267367 A CN201910267367 A CN 201910267367A CN 111782067 A CN111782067 A CN 111782067A
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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
- G06F3/03547—Touch pads, in which fingers can move on a surface
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
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Abstract
A touch pad device comprises a near field communication coil, a shielding layer and a touch layer. The near field communication coil is provided with two opposite first sides and two opposite second sides; the shielding layer is arranged on the near field communication coil and provided with a plurality of slits; the touch layer is arranged on the shielding layer and provided with a plurality of first conductor lines arranged at intervals and a plurality of second conductor lines arranged at intervals, the first conductor lines and the second conductor lines are crossed in a separated mode, each slit is arranged along one first conductor line and spans two second sides of the near-field communication coil, and each slit at least exceeds the near-field communication coil by a length which is larger than the diameter width of the near-field communication coil on the two second sides.
Description
Technical Field
The invention relates to the technical field of touch pads, in particular to a touch pad device with a near field communication function and a notebook computer comprising the same.
Background
Touch pads (touch pads) are becoming standard devices for various consumer electronic products and computer devices, for example, notebook computers are equipped with a touch pad to provide another input function besides a mouse and a keyboard. In addition, the notebook computer may further be configured with a Near-Field Communication (NFC) coil to provide data transmission with an external NFC object, such as a mobile phone with an NFC card or supporting NFC functionality. For example, a user may first use a laptop to find data, and after finding a correct website and copying the website, approach a mobile phone supporting near-field communication to a near-field communication coil of the laptop, so that the laptop can transmit the copied website to the mobile phone through a near-field communication data transmission manner to browse on the mobile phone, thereby greatly improving convenience in use.
Due to the internal space and usage habits of the notebook computer, the near field communication coil is generally disposed under the touch pad of the notebook computer. Fig. 1 is a schematic diagram showing a two-layer stacked structure of a touch panel of a notebook computer and a near field communication coil, wherein the near field communication coil 101 is disposed below a substrate 103, a first layer 1031 of the substrate 103 is provided with driving conductor lines and sensing conductor lines, and a second layer 1032 of the substrate 103 is provided with circuit components and traces, so that the configuration is not suitable for the application of the near field communication coil 101 below the touch panel because the near field communication coil 101 and the substrate 103 are not shielded, and thus the touch panel is greatly interfered by near field communication signals and the function of the touch panel is affected.
Therefore, the structure of the existing touch panel is still imperfect, and there is a need for improvement.
Disclosure of Invention
The invention aims to provide a touch pad device with a near field communication function and a notebook computer comprising the same.
According to an aspect of the present invention, a touch panel device includes a near field communication coil, a shielding layer and a touch layer. The near field communication coil is provided with two opposite first sides and two opposite second sides; the shielding layer is arranged on the near field communication coil and provided with a plurality of slits; the touch layer is arranged on the shielding layer and provided with a plurality of first conductor lines arranged at intervals and a plurality of second conductor lines arranged at intervals, the first conductor lines and the second conductor lines are crossed in a separated mode, each slit is arranged along at least one first conductor line of the first conductor lines and spans two second sides of the near-field communication coil, and each slit at least exceeds the near-field communication coil on the two second sides by a length which is larger than the radial width of the near-field communication coil.
According to another aspect of the present invention, a touch panel device includes a near field communication coil, a shielding layer and a touch layer. The near field communication coil is provided with two opposite first sides and two opposite second sides; the shielding layer is arranged on the near field communication coil and provided with a plurality of slits; the touch layer is arranged on the shielding layer and provided with a plurality of first conductor lines arranged at intervals and a plurality of second conductor lines arranged at intervals, the first conductor lines and the second conductor lines are crossed in a separated mode, one part of slits of the slits crosses over one second edge of the near field communication coil, the other part of slits crosses over the other second edge of the near field communication coil, and each slit is arranged along one part of one first conductor line of the first conductor lines, so that the length of the two ends of each slit, which exceeds the second edge of the near field communication coil, is larger than the diameter width of the near field communication coil.
According to another aspect of the present invention, a notebook computer is provided, which includes the aforementioned touch pad device to provide near field communication function.
The foregoing summary, as well as the following detailed description, is exemplary in nature and is intended to further illustrate the present invention as claimed, and other objects and advantages of the invention will be apparent from the following description and drawings.
Drawings
Fig. 1 is a schematic diagram of a two-layer structure of a touch pad and a near field communication coil of a conventional notebook computer.
Fig. 2 is a schematic diagram of a four-layer structure of a touch pad of a notebook computer in combination with a near field communication coil.
FIG. 3 is a diagram of an experimental setup of a shield layer pattern design according to an embodiment of the present invention.
FIG. 4 shows the results of a first experiment of the mask pattern design of the present invention.
FIG. 5 shows the results of a second experiment of the mask pattern design of the present invention.
FIG. 6 shows the results of a third experiment of the design of the shielding layer pattern of the present invention.
FIG. 7 shows the results of a fourth experiment of the design of the shielding layer pattern of the present invention.
Fig. 8 is a schematic perspective view of a near field communication touch panel device according to the present invention.
Fig. 9(a) is a plan exploded view of the first embodiment of the touch panel device of the present invention.
Fig. 9(B) is a stacked perspective view of fig. 9 (a).
Fig. 9(C) is a modification of the first embodiment of the touch panel device of the present invention.
Fig. 10(a) is a plan exploded view of a second embodiment of the touch panel device of the present invention.
Fig. 10(B) is a stacked perspective view of fig. 10 (a).
Fig. 10(C) is a modification of the second embodiment of the touch panel device of the present invention.
Fig. 11 is a schematic diagram of a notebook computer with a touch panel device according to an embodiment of the present invention.
Description of the symbols:
near field communication coil 101 substrate 103
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 2 is a schematic diagram of a four-layer structure of a touch pad of a notebook computer and a near field communication coil, wherein the near field communication coil 101 is disposed below a multi-layer substrate 105, a first layer of the multi-layer substrate 105 is provided with a sensing conductor line 1051, a second layer of the multi-layer substrate 105 is provided with a driving conductor line 1052, a third layer of the multi-layer substrate 105 is provided with a shielding layer 201, and a fourth layer of the multi-layer substrate 105 is provided with a circuit trace 1054. The shielding layer 201 is a metal layer, so that it can shield the interference between the sensing conductor line 1051, the driving conductor line 1052 and the circuit trace 1054, however, since the shielding layer 201 is located between the near field communication coil 101 and the sensing conductor line 1051 and the driving conductor line 1052 for touch control, the shielding layer 201 can also shield the near field communication coil 101, so that the signal of the near field communication coil 101 cannot penetrate the touch panel, and the external near field communication object cannot be sensed normally.
In order to design a touch pad device, so that a near field communication signal can smoothly penetrate through the touch pad without influencing the use of a near field communication coil, and simultaneously reduce the interference of the near field communication signal to the touch pad, the invention achieves the aim by carrying out a patterned design on a shielding layer of the touch pad device.
The present invention firstly confirms the design rule of the shielding layer which can pass the near field communication signal through the following different experiments to find out the optimized shielding layer pattern design, wherein the experiment is carried out by the structure shown in fig. 3, the copper foil 302 which represents the shielding layer is arranged below a glass substrate 303, the copper foil 302 is provided with the pattern design with a specific opening, the near field communication coil 101 is arranged below the copper foil 302, the glass substrate 303 and the copper foil 302 are confirmed to completely cover the near field communication coil 101, then a near field communication object 304 is close to the near field communication coil 101 through the glass substrate 303 and the copper foil 302 to test whether the near field communication coil 101 can sense to confirm whether the near field communication signal can pass the copper foil 302. The following describes the experiments and results of different opening patterns.
Experiment one
As shown in fig. 4, the opening pattern of the copper foil 302 representing the shielding layer is defined as a plurality of slits 401, in this experiment, the length (L) and the width (W) of the near field communication coil 101 are defined as the size of the long side and the short side of the near field communication coil 101, respectively, and L/W is 55mm/34mm, the slits 401 are symmetrically extended along the width direction from the center line 402 of the short side of the near field communication coil 101, and the length of each slit 401 is a (mm). As can be seen from the data obtained by the experiment, the length (a) of the slit 401 of the copper foil 302 must be larger than the width (W) of the nfc coil 101 by a specific value (e.g., 5mm, in the present experiment, 6mm), so that the nfc object 304 can be sensed normally. That is, the experiment shows that the length of the slit 401 opened in the shielding layer must be large enough, for example, a certain value larger than the width of the nfc coil 101, so that the nfc object 304 can be normally induced.
Experiment two
As shown in fig. 5, the opening pattern of the copper foil 302 representing the shielding layer is defined as a plurality of slits 401, in this experiment, the length (L) and the width (W) of the near field communication coil 101 are defined as the size of the long side and the short side of the near field communication coil 101, respectively, and L/W is 55mm/34mm, the slits 401 span one long side of the near field communication coil 101, the length of each slit 401 extending in the near field communication coil 101 is b (mm), and the length of each slit 401 extending outside the near field communication coil 101 is c is 10 mm. As can be seen from the data obtained by the experiment, the near field communication object 304 cannot be normally induced by increasing the length b, so that the copper foil 302 representing the shielding layer is only opened on one side of the near field communication coil 101 and cannot normally induce the near field communication object 304. That is, this experiment confirms that the slit 401 opened in the shield layer crosses only one side of the nfc coil 101 and cannot normally induce the nfc object 304.
Experiment three
As shown in fig. 6, the opening pattern of the copper foil 302 representing the shielding layer is a plurality of slits 401, in this experiment, the length (L) and the width (W) of the near field communication coil 101 are defined as the size of the long side and the short side of the near field communication coil 101, respectively, and L/W is 55mm/34mm, a part of the slits 401 of the plurality of slits 401 crosses over the long side of the near field communication coil 101, the other part of the slits 401 crosses over the other long side of the near field communication coil 101, and each slit 401 crosses over the long side of the near field communication coil 101 with its central portion, the length of both ends of the slit 401 beyond the near field communication coil 101 is d (mm), and the diameter (p) of the near field communication coil 101 is about 4 mm. As can be seen from the data obtained by the experiment, when the length d of the slit 401 exceeding the near field communication coil 101 is greater than the diameter width (p) of the near field communication coil 101 (for example, 5mm >4mm of the experimental data), the near field communication object 304 can be normally induced, so that it can be seen that the length of the slit 401 of the copper foil 302 representing the shielding layer exceeding the near field communication coil 101 on both sides is at least greater than the diameter width (p) of the near field communication coil 101, and at least the slits 401 are required on both sides of the near field communication coil 101, and the near field communication object 304 can be normally induced. That is, the experiment confirms that the slit 401 of the shield opening must cross over both sides of the nfc coil 101, and the slit 401 must exceed the nfc coil 101 by at least a length greater than the radial width (p) of the nfc coil 101 on both sides to normally induce the nfc object 304, and the experiment also infers that the length of the slit 401 of the shield opening in the first experiment must exceed the nfc coil 101 by at least a length greater than the radial width (p) of the nfc coil 101 to normally induce the nfc object 304.
Experiment four
The fourth condition is the same as the first condition, when a is 35mm, the nfc object 304 cannot be normally sensed, but as shown in fig. 7, an auxiliary slot 701 is added above and below two adjacent slots 401, so that the nfc object 304 can be normally sensed, wherein the sum of the length of the two adjacent slots 401 exceeding the nfc coil 101 and the length of the auxiliary slot 701 is greater than the diameter width (p) of the nfc coil 101. This experiment confirms that the slit length extending to both sides of the near field communication coil 101 can be achieved by the auxiliary slits 701 in different directions.
Through the above experiments, the result of the design rule of the mask layer pattern is as follows:
(1) the slit opened in the shielding layer must cross over the near field communication coil and extend to both sides at least a length beyond the near field communication coil each by a length larger than the radial width of the near field communication coil, and the length of the slit extension can be achieved by auxiliary slits toward different directions.
(2) The slit across the shielding of the near field communication coil must be present at least on both sides of the near field communication coil at the same time.
Accordingly, the present invention provides a touch panel device with a near field communication function, and as shown in fig. 8, the touch panel device 80 of the present invention is a schematic perspective view, which includes a near field communication coil 101, a shielding layer 801 and a touch layer 803, wherein the shielding layer 801 is disposed on the near field communication coil 101, and the touch layer 803 is disposed on the shielding layer 801. The size of the near field communication coil 101 is relatively smaller than the size of the shielding layer 801 or the touch layer 803, the near field communication coil 101 has two opposite first sides 1011 and two opposite second sides 1012, the two first sides 1011 and the two second sides 1012 form an antenna loop for transmitting a near field communication signal to induce a near field communication object 304 on the touch layer 803, and the near field communication coil 101 has a width (p) equal to the width of the first side 1011 or the second side 1012 of the near field communication coil 101. The touch layer 803 is provided with a plurality of first conductor lines 8031 and a plurality of second conductor lines 8032 arranged at intervals, wherein the first conductor lines 8031 are sensing conductor lines and the second conductor lines 8032 are driving conductor lines, or the first conductor lines 8031 are driving conductor lines and the second conductor lines 8032 are sensing conductor lines, and the plurality of first conductor lines 8031 and the plurality of second conductor lines 8032 are intersected at intervals to form a plurality of touch areas on the touch layer 803 for detecting the touch of a user on the touch layer 803, each of the first conductor lines 8031 or the second conductor lines 8032 can have a specific pattern shape according to the requirement of touch sensing, but for convenience of explanation, the present invention is represented by the first conductor lines 8031 and the second conductor lines 8032 in a straight line shape, but in practical application, the first conductor lines 8031 or the second conductor lines 8032 can be a plurality of rhombic, triangular or irregular continuous conductor lines, the invention is thus not limited to the embodiments described in the drawings. The sensing conductor lines, the driving conductor lines and the corresponding touch sensing operations of the touch layer 803 may be conventional or customary in the touch art, and are not described herein again.
The first side 1011 of the near field communication coil 101 is substantially parallel to the first conductor line 8031, and the second side 1012 thereof is substantially parallel to the second conductor line 8032. The shielding layer 801 disposed between the near field communication coil 101 and the touch layer 803 is a metal layer, and a plurality of slits 401 designed according to the above experimental results are disposed thereon, so that the shielding layer 801 does not shield the near field communication signal and prevent the near field communication signal from being shielded, thereby preventing the near field communication object 304 from being sensed normally, and the shielding layer 801 can effectively protect the first conductive line 8031 and the second conductive line 8032 on the touch layer 803 from being affected by the near field communication signal.
First embodiment
Fig. 9(a) is an exploded plan view of a first embodiment of a touch panel device 80 in an embodiment of the present invention, and fig. 9(B) shows a stacked perspective view thereof. As shown in fig. 9(a) and 9(B), the present embodiment is characterized in that a plurality of slits 401 are arranged at intervals on the shielding layer 801, the extending direction of the slits 401 is parallel to the extending direction of the first conductor line 8031 on the touch layer 803, and each slit 401 is arranged along a first conductor line 8031 and crosses over two second sides 1012 of the near field communication coil 101, and each slit 401 exceeds the near field communication coil 101 on the two second sides 1012 by at least a length larger than the radial width (p) of the near field communication coil 101, respectively, in the present embodiment, each slit 401 is arranged along an entire first conductor line 8031 to cross over the two second sides 1012 of the near field communication coil 101, so that, as shown in fig. 9(B), the length of each slit 401 exceeding the near field communication coil 101 on the two second sides 1012 is significantly larger than the radial width (p) of the near field communication coil 101, therefore, it can be confirmed from the above experimental results that the near field communication object 304 can be normally induced, and in addition, each slit 401 can also be disposed along only a portion of one first conductor line 8031, so long as the length of the slit crossing over the two second sides 1012 of the near field communication coil 101 and respectively exceeding the near field communication coil 101 on the two second sides 1012 is greater than the radial width (p) of the near field communication coil 101, so as to achieve the effect of normally inducing the near field communication object 304.
Referring to fig. 9(B), each slit 401 is disposed along a first conductor line 8031 such that each slit 401 is parallel to but only partially overlaps or does not overlap at all a first conductor line 8031, in the present embodiment, the disposed position of each slit 401 is between the disposed positions of two adjacent first conductor lines 8031, so that each slit 401 is parallel to but does not overlap a first conductor line 8031, which can prevent the first conductor line 8031 from being exposed to the near-field communication coil 101 through the slit 401, that is, the shielding layer 801 can completely cover the first conductor line 8031, thereby effectively reducing the influence of the near-field communication signal on the first conductor line 8031.
In addition, referring to fig. 9(C), which is a modification of the first embodiment, an auxiliary slit 701 is further disposed on the shielding layer 801, as shown in fig. 9(C), an auxiliary slit 701 is disposed on each of two adjacent slits 401 at least one side of two second sides 1012 crossing the nfc coil 101 to connect the two adjacent slits 401, in fig. 9(C), an auxiliary slit 701 is disposed on each of two second sides 1012 crossing the nfc coil 101 to connect the two corresponding adjacent slits 401, and the sum of the length (D1+ D1) of the two adjacent slits 401 exceeding the nfc coil 101 and the length (D2) of the connected auxiliary slit 701 is greater than the radial width (p) of the nfc coil 101, so that it can be confirmed that the nfc object 304 can be normally sensed according to the above experimental results.
It should be noted that, in the present embodiment, the first conductor line 8031 is a sensing conductor line and the second conductor line 8032 is a driving conductor line, that is, the slit 401 is disposed along the sensing conductor line, but the present invention is not limited thereto, and in other embodiments, the first conductor line 8031 is a driving conductor line and the second conductor line 8032 is a sensing conductor line, that is, the slit 401 is disposed along the driving conductor line. In addition, the numbers, sizes, proportions and the like of the first conductor line 8031, the second conductor line 8032, the slits 401, the auxiliary slits 701 and the like shown in fig. 9(a), 9(B) and 9(C) are only for convenience of description, and the practical application is not limited thereto.
Second embodiment
Fig. 10(a) is an exploded plan view of a second embodiment of a touch panel device 80 of the present invention, and fig. 10(B) shows a stacked perspective view thereof. As shown in fig. 10(a) and 10(B), from the perspective view of the stacked layer of the nfc coil 101, the shielding layer 801 and the touch layer 803, this embodiment is characterized in that a part of the slits 401-1 of the plurality of slits 401 arranged at intervals on the shielding layer 801 crosses over a second edge 1012-1 of the nfc coil 101, the other part of the slits 401-2 crosses another second side 1012-2 of the near field communication coil 101, the extending direction of each slit 401 is parallel to the extending direction of the first conductive line 8031 on the touch layer 803, and each slit 401 is disposed along a part of a first conductive line 8031, the length (D) of each slit 401 beyond the nfc coil 101 is greater than the radial width (p) of the nfc coil 101, so that the near field communication object 304 can be sensed normally according to the above experimental results.
Referring to fig. 10(B), each slit 401 is disposed along a portion of a first conductor line 8031 such that each slit 401 is parallel to but only partially overlaps or does not overlap at all a first conductor line 8031, in the present embodiment, the disposed position of each slit 401 is between the disposed positions of two adjacent first conductor lines 8031, so that each slit 401 is parallel to but does not overlap a first conductor line 8031, which can prevent the first conductor line 8031 from being exposed to the near-field communication coil 101 through the slit 401, that is, the shielding layer 801 can completely cover the first conductor line 8031, thereby effectively reducing the influence of the near-field communication signal on the first conductor line 8031. In addition, since each slit 401 of the present embodiment is disposed along only a portion of a first conductive line 8031, the shielding layer 801 covers the touch layer 803 more completely, and the shielding effect for the near field communication signal is better.
Further, referring to fig. 10(C), which is a modification of the second embodiment, in which an auxiliary slit 701 is further provided on the shielding layer 801, as shown in fig. 10(C), each two adjacent slits 401 are provided with an auxiliary slit 701 at least one side of both sides of each second side 1012 crossing the near field communication coil 101 to connect the two adjacent slits 401, in fig. 10(C), each two adjacent slits 401 are provided with an auxiliary slit 701 at only one side of each second side 1012 crossing the near field communication coil 101 to connect the corresponding two adjacent slits 401, and the sum of the length (D1+ D1) of the two adjacent slits 401 exceeding the near field communication coil 101 and the length (D2) of the connected auxiliary slit 701 is larger than the radial width (p) of the near field communication coil 101, and the length (D) of the slit 401 not connecting the auxiliary slit 701 exceeds the near field communication coil 101 is still larger than the radial width (p) of the near field communication coil 101, it can be confirmed from the above experimental results that the nfc object 304 can be sensed normally.
It should be noted that, in the present embodiment, the first conductor line 8031 is a sensing conductor line and the second conductor line 8032 is a driving conductor line, that is, the slit 401 is disposed along the sensing conductor line, but the present invention is not limited thereto, and in other embodiments, the first conductor line 8031 is a driving conductor line and the second conductor line 8032 is a sensing conductor line, that is, the slit 401 is disposed along the driving conductor line. In addition, the numbers, sizes, proportions and the like of the first conductor line 8031, the second conductor line 8032, the slits 401, the auxiliary slits 701 and the like shown in fig. 10(a), 10(B) and 10(C) are only for convenience of description, and the practical application is not limited thereto.
Fig. 11 is a schematic diagram of an embodiment of a notebook computer having a touch panel device 80 according to the present invention, wherein the touch panel device 80 is disposed below a keyboard of the notebook computer 110, so that a user can conveniently input by touching the touch panel device 80 when using the notebook computer 110, and meanwhile, since the touch panel device 80 has a near field communication coil 101 and a pattern design of a specific opening through a shielding layer 801, a near field communication signal can smoothly penetrate through the notebook computer 110 without interfering with a touch circuit thereof, thereby achieving an effect of normally sensing a near field communication object 304 on the notebook computer 110.
The above-described embodiments are merely exemplary for convenience in explanation, and the scope of the invention as claimed should be determined by the claims rather than by the limitations set forth herein.
Claims (12)
1. A touch pad device, comprising:
the near field communication coil is provided with two opposite first sides and two opposite second sides;
the shielding layer is arranged on the near field communication coil and is provided with a plurality of slits; and
a touch layer disposed on the shielding layer and having a plurality of first conductor lines and a plurality of second conductor lines arranged at intervals, the first conductor lines and the second conductor lines crossing each other at intervals,
wherein each slit is disposed along at least one of the first conductor lines and crosses over two second sides of the near field communication coil, and each slit at least exceeds the near field communication coil by a length greater than the radial width of the near field communication coil on the two second sides.
2. The touch panel device according to claim 1, wherein each slit is provided along a part of the first conductor line, and each slit is partially overlapped or not overlapped at all with the first conductor line.
3. The touch panel device according to claim 2, wherein each slit is provided between two adjacent first conductor lines.
4. The touch panel device according to claim 1, wherein each slit is provided along an entire first conductor line so as to cross both second sides of the near field communication coil.
5. The touch panel device according to claim 1, wherein each of the two adjacent slits has an auxiliary slit provided at least one of the two second sides across the near field communication coil to connect the two adjacent slits, and a sum of a length of the two adjacent slits exceeding the near field communication coil and a length of the auxiliary slit connected thereto is larger than a radial width of the near field communication coil.
6. The touch panel device according to claim 1, wherein the first conductor line is a sensing conductor line and the second conductor line is a driving conductor line.
7. A touch pad device, comprising:
the near field communication coil is provided with two opposite first sides and two opposite second sides;
the shielding layer is arranged on the near field communication coil and is provided with a plurality of slits; and
a touch layer disposed on the shielding layer and having a plurality of first conductor lines and a plurality of second conductor lines arranged at intervals, the first conductor lines and the second conductor lines crossing each other at intervals,
the near field communication coil is characterized in that one part of the plurality of slits crosses over a second side of the near field communication coil, the other part of the plurality of slits crosses over the other second side of the near field communication coil, and each slit is arranged along one part of one of the plurality of first conductor lines, so that the length of two ends of each slit, which exceed the second side of the near field communication coil, is larger than the diameter width of the near field communication coil.
8. The touch panel device according to claim 7, wherein each slit is provided along a part of the first conductor line, and each slit is partially overlapped or not overlapped at all with the first conductor line.
9. The touch panel device according to claim 8, wherein each slit is provided between two adjacent first conductor lines.
10. The touch panel device according to claim 7, wherein an auxiliary slit is provided at least one of two sides across each second side of the near field communication coil for each two adjacent slits to connect the two adjacent slits, and a sum of a length of the two adjacent slits exceeding the near field communication coil and a length of the connected auxiliary slit is larger than a radial width of the near field communication coil.
11. The touch panel device according to claim 7, wherein the first conductor line is a sensing conductor line and the second conductor line is a driving conductor line.
12. A notebook computer, comprising a touch panel device according to any one of claims 1 to 11.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910267367.2A CN111782067B (en) | 2019-04-03 | 2019-04-03 | Touch panel device and notebook computer comprising same |
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| CN201910267367.2A CN111782067B (en) | 2019-04-03 | 2019-04-03 | Touch panel device and notebook computer comprising same |
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| CN111782067B CN111782067B (en) | 2023-04-25 |
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| CN111782067B (en) | 2023-04-25 |
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