CN109947272B - Stylus pen and driving method - Google Patents
Stylus pen and driving method Download PDFInfo
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- CN109947272B CN109947272B CN201910229446.4A CN201910229446A CN109947272B CN 109947272 B CN109947272 B CN 109947272B CN 201910229446 A CN201910229446 A CN 201910229446A CN 109947272 B CN109947272 B CN 109947272B
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Abstract
The invention relates to the technical field of touch control, and provides a touch control pen and a driving method. The stylus includes: the device comprises a detection unit, a first processing unit and a signal generation unit. The detection unit is used for detecting the inclination state of the touch pen and generating inclination information; the first processing unit is connected with the detection unit and used for generating a control signal according to the inclination information; the signal generating unit is connected with the first processing unit and used for generating an excitation signal according to the control signal. The touch control pen provided by the disclosure can send out different excitation signals according to the inclination state of the touch control pen so as to control the touch control screen differently.
Description
Technical Field
The invention relates to the technical field of touch control, in particular to a touch control pen and a driving method.
Background
With the development of touch technology, more and more mobile terminals adopt touch man-machine interaction, besides touch operation is performed by human hands, an active pen, a passive pen and the like are provided, the principle of the passive pen is the same as that of the hands, and the active pen generates coupling capacitance between a pen point and a screen sensor by emitting an excitation signal, so that touch point coordinates are detected.
In the related art, the active pen generally includes a signal generation unit, which can be used to generate the excitation signal.
However, in the related art, the excitation signal generated by the signal generating unit is a stable and unchangeable pulse signal, and the touch effect generated by the excitation signal is similar to that of manual touch, and only a single touch effect can be realized.
It is to be noted that the information invented in the above background section is only for enhancing the understanding of the background of the present invention, and therefore, may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The invention aims to provide a touch pen and a driving method. The touch pen can solve the problem of single touch effect in the related technology.
Additional features and advantages of the invention will be set forth in the detailed description which follows, or may be learned by practice of the invention.
According to an aspect of the present invention, there is provided a stylus comprising: the device comprises a detection unit, a first processing unit and a signal generation unit. The detection unit is used for detecting the inclination state of the touch pen and generating inclination information; the first processing unit is connected with the detection unit and used for generating a control signal according to the inclination information; the signal generating unit is connected with the first processing unit and used for generating an excitation signal according to the control signal.
In one exemplary embodiment of the present invention, the detection unit includes: the device comprises a detection main body, a first electrode, a connecting rod, a second electrode, a capacitance detection unit and a second processing unit. The detection main body is provided with a cavity extending along the axial direction of the touch pen, and a base station is arranged in the cavity; the first electrode is movably sleeved in the cavity; the first end of the connecting rod is connected to one end face of the first electrode through a universal joint, the second end of the connecting rod is connected with a weight piece, and the weight piece is used for being abutted against the base platform under the action of gravity of the weight piece; the second electrode is fixedly arranged in the cavity, is positioned on one side of the first electrode, which is far away from the base station, and is used for forming a first capacitor with the first electrode; the capacitance detection unit is used for detecting the capacitance of the first capacitor and generating capacitance information; the second processing unit is used for combining the capacitance information to generate the inclination information of the touch pen.
In an exemplary embodiment of the invention, a hemispherical groove is formed on one end surface of the first electrode, the universal joint comprises a ball and a rod body connected with the ball, the ball is used for being matched with the hemispherical groove, and the rod body is connected with the connecting rod.
In an exemplary embodiment of the present invention, the cavity is provided with a first barrier portion and a second barrier portion along an axial direction thereof, and the first barrier portion and the second barrier portion are located at both sides of the first electrode.
In an exemplary embodiment of the present invention, a contact surface of the abutment with the weight is a concave surface depressed toward a centroid of the abutment.
In an exemplary embodiment of the invention, the stylus further includes a mode switching unit, and the mode switching unit is disposed on the detection unit and is used for controlling on and off of the detection unit.
In an exemplary embodiment of the present invention, the first electrode of the first capacitor is connected to a ground terminal, and the capacitance detecting unit includes: the circuit comprises a first switch unit, a second capacitor, a comparator, a latch, a resistor, a third switch unit, a counter and a third processor. The first switch unit is connected with the second electrode of the first capacitor, the high-level signal end and the first clock signal end and used for responding to a signal of the first clock signal end to transmit a signal of the high-level signal end to the second electrode of the first capacitor; the second switch unit is connected with the second electrode of the first capacitor, a second clock signal end and a first node and is used for responding to a signal of the second clock signal end to transmit a signal of the second electrode of the first capacitor to the first node; the second capacitor is arranged between the first node and a grounding end; the inverting input end of the comparator receives a reference voltage, and the non-inverting input end of the comparator is connected with the first node; the setting end of the latch is connected with the output end of the comparator, and the zero setting end of the latch is connected with a third clock signal end; the first end of the resistor is connected to the first node; the third switch unit is connected with the second end of the resistor, a ground terminal and the output terminal of the latch and is used for responding to the signal of the output terminal of the latch and transmitting the signal of the second end of the resistor to the ground terminal; the counter is connected with the output end of the latch and is used for detecting the number of times of high level of the output end of the latch; and the third processor is connected with the counter and used for acquiring the capacitance of the first capacitor in combination with the times of high level of the output end of the latch.
In an exemplary embodiment of the present invention, the stylus includes a cavity extending along an axial direction thereof, and the detection unit includes: hollow hemispheroid, touch sensor, connecting rod, fourth treater. The hollow hemispheroid is arranged in the cavity, and the cross section of the hollow hemispheroid is vertical to the axial direction of the touch pen; the touch sensor is arranged on the inner surface of the hollow hemisphere; one end of the connecting rod is connected with a sphere center pivot of the hollow hemisphere through a universal joint, the other end of the connecting rod is connected with a touch control ball, and the touch control ball is abutted against the inner surface of the hollow hemisphere; and the fourth processor is connected with the touch sensor and used for generating the inclination information of the touch pen according to the position of the touch ball touching the touch sensor.
In an exemplary embodiment of the invention, the detection unit, the first processing unit and the signal generation unit are connected in series.
According to an aspect of the present invention, there is provided a stylus driving method for driving the stylus, the method including:
detecting the tilt state of the stylus by using a detection unit and generating tilt information;
generating a control signal according to the inclination information by using a first processing unit;
and generating an excitation signal according to the control signal by using a signal generating unit.
The invention provides a touch pen and a driving method, wherein the touch pen comprises: the device comprises a detection unit, a first processing unit and a signal generation unit. The detection unit is used for detecting the inclination state of the touch pen and generating inclination information; the first processing unit is connected with the detection unit and used for generating a control signal according to the inclination information; the signal generating unit is connected with the first processing unit and used for generating an excitation signal according to the control signal. In one aspect, the stylus provided by the present disclosure may send different excitation signals according to the tilt state of the stylus to perform different controls on the touch screen. On the other hand, the touch pen provided by the disclosure is simple in structure and low in cost.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic diagram of an exemplary embodiment of a stylus according to the present disclosure;
FIG. 2 is a functional block diagram of an exemplary embodiment of a stylus of the present disclosure;
FIG. 3 is an external view of an exemplary embodiment of a stylus of the present disclosure;
FIG. 4 is a schematic structural diagram of another exemplary embodiment of a stylus of the present disclosure;
FIG. 5 is a functional block diagram of another exemplary embodiment of a stylus of the present disclosure;
FIG. 6a is a schematic structural diagram of a stylus according to an exemplary embodiment of the disclosure in a vertical state of a detecting unit;
FIG. 6b is a schematic diagram illustrating an exemplary embodiment of a stylus according to the present disclosure in a tilted state of a detecting unit;
FIG. 7 is a functional block diagram of a detection unit in an exemplary embodiment of a stylus of the present disclosure;
FIG. 8 is a schematic structural diagram of a gimbal in an exemplary embodiment of a stylus of the present disclosure;
FIG. 9 is a schematic diagram of a base station in an exemplary embodiment of a stylus of the present disclosure;
FIG. 10 is a circuit diagram of a capacitive sensing unit in an exemplary embodiment of a stylus of the present disclosure;
FIG. 11 is a timing diagram illustrating nodes of a capacitive sensing unit in an exemplary embodiment of a stylus of the present disclosure;
FIG. 12 is a schematic diagram illustrating a capacitive detection unit in another exemplary embodiment of a stylus of the present disclosure;
FIG. 13 is an enlarged view of a portion of FIG. 12;
FIG. 14 is a top view of a touch sensor in an exemplary embodiment of a stylus of the present disclosure.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be understood that if the elements of an icon are turned upside down, elements described as "upper" will be those described as "lower". Other relative terms, such as "high," "low," "top," "bottom," "left," "right," and the like are also intended to have similar meanings. When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.
The terms "a," "an," "the," and the like are used to denote the presence of one or more elements/components/parts; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.
First, the present exemplary embodiment provides a touch pen, as shown in fig. 1, 2 and 3, fig. 1 is a schematic structural diagram of an exemplary embodiment of the touch pen of the present disclosure, fig. 2 is a functional block diagram of an exemplary embodiment of the touch pen of the present disclosure, and fig. 3 is an external view of an exemplary embodiment of the touch pen of the present disclosure. The stylus includes: detection unit 1, first processing unit 2, signal generation unit 3. The detection unit 1 is used for detecting the inclination state of the stylus and generating inclination information; the first processing unit 2 is connected with the detection unit 1 and used for generating a control signal according to the inclination information; the signal generating unit 3 is connected to the first processing unit 2, and is configured to generate an excitation signal according to the control signal.
The invention provides a touch pen and a driving method, wherein the touch pen comprises: the device comprises a detection unit, a first processing unit and a signal generation unit. The detection unit is used for detecting the inclination state of the touch pen and generating inclination information; the first processing unit is connected with the detection unit and used for generating a control signal according to the inclination information; the signal generating unit is connected with the first processing unit and used for generating an excitation signal according to the control signal. In one aspect, the stylus provided by the present disclosure may send different excitation signals according to the tilt state of the stylus to perform different controls on the touch screen. On the other hand, the touch pen provided by the disclosure is simple in structure and low in cost.
The present exemplary embodiment may generate different excitation signals according to the tilt state of the stylus pen. For example, the present exemplary embodiment may generate excitation signals of different frequencies according to the tilt angle of the stylus, and the higher the tilt angle of the stylus (i.e., the smaller the θ angle in fig. 3), the higher the frequency of the excitation signals, and this setting may implement the pen front when the stylus writes. For another example, the exemplary embodiment may generate the excitation signals of different functions according to the tilt angle of the stylus, for example, when the tilt angle of the stylus reaches a preset value, the stylus may send out a "double-click" excitation signal, and the setting may utilize the tilt angle of the stylus to implement different touch functions.
In the exemplary embodiment, as shown in fig. 1, the detection unit 1 is connected to the touch pen tip 4, the first processing unit 2 is connected to the detection unit 1, and the signal generation unit 3 is connected to the first processing unit 2. It should be understood that, in other exemplary embodiments, there may be more choices for the relative position relationship of the detection unit 1, the first processing unit 2, the signal generation unit 3 and the touch pen tip 4, which all fall within the protection scope of the present disclosure.
In the present exemplary embodiment, as shown in fig. 4 and 5, fig. 4 is a schematic structural diagram of another exemplary embodiment of the touch pen of the present disclosure, and fig. 5 is a functional block diagram of another exemplary embodiment of the touch pen of the present disclosure. The stylus pen may further include an electric storage unit 6, and the electric storage unit 6 may be configured to provide power to the detection unit, the first processing unit, and the signal generation unit. It should be understood that, in other exemplary embodiments, the stylus pen may further include a power connector, and the stylus pen may provide power to the detection unit, the first processing unit, and the signal generation unit through the power connector, and the power connector may be a USB connector.
As shown in fig. 4 and 5, the stylus may further include a mode switching unit 5, and the mode switching unit 5 may be disposed on the detection unit 1 and configured to control on/off of the detection unit 1. The mode switching unit 5 may be a switching element, and the switching element may be disposed between the power storage unit 6 and the detection unit 1, so that the on/off of the detection unit may be controlled by controlling the on/off of a power supply line from the power storage device to the detection unit.
In the present exemplary embodiment, as shown in fig. 6a, 6b, and 7, fig. 6a is a schematic structural diagram of a stylus pen according to the present disclosure in an exemplary embodiment, where a detection unit is in a vertical state, fig. 6b is a schematic structural diagram of a stylus pen according to the present disclosure in an exemplary embodiment, where a detection unit is in an inclined state, and fig. 7 is a functional block diagram of a detection unit in a stylus pen according to the present disclosure in an exemplary embodiment. The detection unit may include: the detection device comprises a detection body 11, a first electrode 12, a connecting rod 13, a second electrode 14, a capacitance detection unit 15 and a second processing unit 16. The detection main body 11 is provided with a cavity extending along the axial direction of the touch pen, and a base station 111 is arranged in the cavity; the first electrode 12 is movably sleeved in the cavity; a first end of the connecting rod 13 is connected to one end face of the first electrode 12 through a universal joint, a second end is connected with a weight 17, and the weight 17 is used for abutting against the base platform 111 under the action of gravity of the weight; the second electrode 14 is fixedly arranged in the cavity, is positioned on one side of the first electrode 12 away from the base platform 111, and is used for forming a first capacitor 18 with the first electrode 12; the capacitance detection unit 15 is used for detecting the capacitance of the first capacitor 18 and generating capacitance information; the second processing unit 16 is configured to generate tilt information of the stylus in combination with the capacitance information. When the stylus is inclined, the first electrode moves under the action of the weight 17, so that different capacitance is generated between the first electrode and the second capacitance layer, and the inclined state of the stylus can be calculated through the actual capacitance of the first capacitor.
In the present exemplary embodiment, as shown in fig. 6a and 6b, the capacitance C ═ S/d of the first capacitor1(1) Where ε is a dielectric constant, S is a relative area between the first electrode and the second electrode, and d1 is a relative distance between the first electrode and the second electrode. d1＝H-d2(2) Wherein d is2Is the relative distance between the first electrode and the base, and H is the relative distance between the second electrode and the base. d2L sin θ (3), where L is the connecting rod length and θ reflects the angle of the tilt. According to the above formulas (1), (2) and (3), the following results can be obtained
d2May be acquired by a position sensor. The second processing unit 16 may obtain the θ angle representing the tilt state of the stylus through the above-described operation method. Specifically, the second processing unit 16 may form the algorithm by software programming, or may form the algorithm by hardware.
Fig. 8 is a schematic structural diagram of a universal joint in an exemplary embodiment of a stylus according to the present disclosure. One end face of the first electrode 12 may be provided with a hemispherical groove 121, the universal joint may include a ball 71 and a rod 72, the ball 71 is configured to match with the hemispherical groove 121, and the rod 72 is connected to the connecting rod 13. It should be understood that the universal joint may have more alternative configurations, all falling within the scope of the present disclosure.
In the present exemplary embodiment, as shown in fig. 6a, the cavity may be provided with a first barrier 191 and a second barrier 192 along an axial direction thereof, and the first barrier 191 and the second barrier 192 are located at both sides of the first electrode. Wherein the first and second stoppers 191 and 192 may be annular bosses in the cavity of the detection body 11, and the first and second stoppers 191 and 192 may define the first electrode in a space between the first and second stoppers 191 and 192.
In the present exemplary embodiment, as shown in fig. 9, a schematic structural diagram of a base station in an exemplary embodiment of a stylus pen of the present disclosure is shown. The contact surface of the abutment and the weight member may be a concave surface depressed toward the centroid of the abutment. This setting can be convenient for when the stylus is placed vertically the weight returns to the centroid position of base station. The weight piece can be a sphere, friction force between the spherical weight piece and the base station is small, and the weight piece can conveniently slide on the base station along the gravity direction.
In the present exemplary embodiment, as shown in fig. 10, a circuit structure diagram of a capacitance detection unit in an exemplary embodiment of a stylus pen of the present disclosure is shown. One implementation of the capacitance detection unit 15 may be that the first electrode of the first capacitor C1 is connected to the ground GND, and the capacitance detection unit may include: a first switching unit 151, a second switching unit 152, a second capacitor C2, a comparator CMP, a Latch, a resistor R, a third switching unit 153, a counter 154, and a third processor 155. The first switching unit 151 is connected to the second electrode of the first capacitor C1, a high level signal terminal Vdd, and a first clock signal terminal CLK1, and is configured to transmit a signal of the high level signal terminal Vdd to the second electrode of the first capacitor C1 in response to a signal of the first clock signal terminal CLK 1; the second switching unit 152 is connected to the second electrode of the first capacitor C1, a second clock signal terminal CLK2, and a first node N1, and is configured to transmit a signal of the second electrode of the first capacitor C1 to the first node N1 in response to a signal of the second clock signal terminal CLK 2; the second capacitor C2 is disposed between the first node N1 and a ground terminal GND; the inverting input terminal of the comparator CMP receives a reference voltage Vref, and the non-inverting input terminal is connected to the first node N1; the set terminal S of the Latch Latch is connected with the output terminal of the comparator CMP, and the zero setting terminal R is connected with the third clock signal terminal CLK 3; a first end of the resistor R is connected to the first node N1; the third switching unit 153 is connected to the second end of the resistor R, a ground terminal GND and an output terminal Q of the Latch, and is configured to transmit a signal of the second end of the resistor R to the ground terminal GND in response to a signal of the Latch output terminal Q; the counter 154 is connected to the output Q of the Latch, and is configured to detect the number of times that the output Q of the Latch is at a high level; the third processor 155 is connected to the counter 154 for obtaining the capacitance of the first capacitor in combination with the number of times the output of the latch is high. The first switch unit 151 may be an N-type transistor T1, the second switch unit 152 may be an N-type transistor T2, and the third switch unit 153 may be an N-type transistor T3.
Fig. 11 is a timing diagram of each node of the capacitance detection unit in an exemplary embodiment of the stylus pen of the present disclosure. T denotes a capacitance sensing period, and at a start period T1 of the capacitance sensing period T, the first clock signal terminal CLK1 is at a high level, the second clock signal terminal CLK2 is at a low level, and the high level signal terminal Vdd charges the first capacitor C1 through the first N-type transistor T1. In the time period T2, the first clock signal terminal CLK1 is at low level, the second clock signal terminal is at high level, the second N-type transistor T2 is turned on, the first capacitor C1 charges the second capacitor C2, when the voltage of the first node reaches the reference voltage Vref, the output terminal of the comparator outputs a high level signal, the zero setting terminal R of the latch is at low level, the output terminal Q of the latch is at high level, and the third N-type transistor T3 is turned on to direct the power of the second capacitor C2 to the ground terminal. During the period t3, the third clock signal terminal CLK3 is high to set the output terminal Q of the latch low for the next cycle. As shown in fig. 11, the second capacitor C2 is charged and discharged twice, and the high level pulse appears at the output Q of the corresponding latch the same number of times. Therefore, the number n of times of charging the second capacitor C2 can be obtained by counting the number of times of the high level pulse at the output end Q of the latch. The charge of the second capacitor C2 charged once is C2 × Vref, and then C2 charges Q ═ n × C2 × Vref ═ C1 × Vdd in one detection period, where C1 is the capacitance of the first capacitor C1 and C2 is the capacitance of the second capacitor, then the capacitance C1 ═ n × C2 × Vref/Vdd of the first capacitor C1 can be calculated. The number of times n that the second capacitor C2 is charged can be obtained by the counter 154, and the third processor 155 can obtain the capacitance of the second capacitor C2 according to the algorithm described above.
In the present exemplary embodiment, as shown in fig. 12, fig. 12 is a schematic structural diagram of a capacitance detection unit in another exemplary embodiment of a stylus pen according to the present disclosure. Fig. 13 is a partially enlarged view of fig. 12. Another implementation of the detection unit may be that the stylus includes a cavity extending along an axial direction thereof, and the detection unit may include: a hollow hemisphere 81, a touch sensor, a connecting rod 83, and a fourth processor (not shown). The hollow hemisphere 81 is arranged in the cavity, and the cross section of the hollow hemisphere can be perpendicular to the axial direction of the touch control pen; the touch sensor is arranged on the inner surface of the hollow hemisphere 81; one end of the connecting rod 83 is connected with the sphere center pivot of the hollow hemisphere 81 through a universal joint, the other end of the connecting rod is connected with a touch control ball 84, and the touch control ball 84 is abutted against the inner surface of the hollow hemisphere 81; the fourth processor is connected to the touch sensor, and configured to generate the tilt information of the stylus according to a position where the touch ball 84 touches the touch sensor. As shown in fig. 14, which is a top view of a touch sensor in an exemplary embodiment of a stylus pen according to the present disclosure, the touch sensor includes a plurality of driving electrodes Tx and a plurality of sensing electrodes Rx, and the touch sensor can determine a touch position according to a capacitance change between the driving electrodes and the sensing electrodes. As shown in fig. 12, when the stylus is in different tilting states, the stylus ball will contact with the touch sensor at different positions, thereby generating position information. The fourth processor may calculate the tilt angle from the position information.
The present exemplary embodiment further provides a stylus driving method for driving the stylus described above, the method including:
step S1: detecting the tilt state of the stylus by using a detection unit and generating tilt information;
step S2: generating a control signal according to the inclination information by using a first processing unit;
step S3: and generating an excitation signal according to the control signal by using a signal generating unit.
The stylus driving method provided by the present disclosure has the same technical features and working principles as the stylus described above, and the above contents have been described in detail and are not described herein again.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is to be limited only by the terms of the appended claims.
Claims (8)
1. A stylus, comprising:
the detection unit is used for detecting the inclination state of the touch pen and generating inclination information;
the first processing unit is connected with the detection unit and used for generating a control signal according to the inclination information;
the signal generating unit is connected with the first processing unit and used for generating an excitation signal according to the control signal;
the detection unit includes:
the detection main body is provided with a cavity extending along the axial direction of the touch pen, and a base station is arranged in the cavity;
the first electrode is movably sleeved in the cavity;
the first end of the connecting rod is connected to one end face of the first electrode through a universal joint, the second end of the connecting rod is connected with a weight piece, and the weight piece is used for being abutted against the base platform under the action of gravity of the weight piece;
the second electrode is fixedly arranged in the cavity, is positioned on one side of the first electrode, which is far away from the base station, and is used for forming a first capacitor with the first electrode;
the capacitance detection unit is used for detecting the capacitance of the first capacitor and generating capacitance information;
the second processing unit is used for generating inclination information of the touch pen by combining the capacitance information;
or, the stylus includes a cavity extending along an axial direction thereof, and the detection unit includes:
the hollow hemisphere is arranged in the cavity, and the cross section of the hollow hemisphere is perpendicular to the axial direction of the touch control pen;
the touch sensor is arranged on the inner surface of the hollow hemisphere;
one end of the connecting rod is connected with a sphere center pivot of the hollow hemisphere through a universal joint, the other end of the connecting rod is connected with a touch control ball, and the touch control ball is abutted against the inner surface of the hollow hemisphere;
and the fourth processor is connected with the touch sensor and used for generating the inclination information of the touch pen according to the position of the touch ball touching the touch sensor.
2. The stylus of claim 1,
the detection unit includes:
the detection main body is provided with a cavity extending along the axial direction of the touch pen, and a base station is arranged in the cavity;
the first electrode is movably sleeved in the cavity;
the first end of the connecting rod is connected to one end face of the first electrode through a universal joint, the second end of the connecting rod is connected with a weight piece, and the weight piece is used for being abutted against the base platform under the action of gravity of the weight piece;
the second electrode is fixedly arranged in the cavity, is positioned on one side of the first electrode, which is far away from the base station, and is used for forming a first capacitor with the first electrode;
the capacitance detection unit is used for detecting the capacitance of the first capacitor and generating capacitance information;
the second processing unit is used for generating inclination information of the touch pen by combining the capacitance information;
one end face of the first electrode is provided with a hemispherical groove, the universal joint comprises a ball body and a ball body connecting rod body, the ball body is used for being matched with the hemispherical groove, and the rod body is connected with the connecting rod.
3. The stylus of claim 1,
the detection unit includes:
the detection main body is provided with a cavity extending along the axial direction of the touch pen, and a base station is arranged in the cavity;
the first electrode is movably sleeved in the cavity;
the first end of the connecting rod is connected to one end face of the first electrode through a universal joint, the second end of the connecting rod is connected with a weight piece, and the weight piece is used for being abutted against the base platform under the action of gravity of the weight piece;
the second electrode is fixedly arranged in the cavity, is positioned on one side of the first electrode, which is far away from the base station, and is used for forming a first capacitor with the first electrode;
the capacitance detection unit is used for detecting the capacitance of the first capacitor and generating capacitance information;
the second processing unit is used for generating inclination information of the touch pen by combining the capacitance information;
the cavity is provided with a first blocking part and a second blocking part along the axial direction of the cavity, and the first blocking part and the second blocking part are positioned on two sides of the first electrode.
4. The stylus of claim 2, wherein a contact surface of the base and the weight is a concave surface depressed toward a centroid of the base.
5. The stylus of claim 1, further comprising:
and the mode switching unit is arranged on the detection unit and used for controlling the opening and closing of the detection unit.
6. The stylus of claim 1, wherein the first electrode of the first capacitor is connected to ground, and the capacitance detecting unit comprises:
the first switch unit is connected with the second electrode of the first capacitor, the high-level signal end and the first clock signal end and used for responding to a signal of the first clock signal end to transmit a signal of the high-level signal end to the second electrode of the first capacitor;
the second switch unit is connected with the second electrode of the first capacitor, a second clock signal end and a first node and is used for responding to a signal of the second clock signal end to transmit a signal of the second electrode of the first capacitor to the first node;
the second capacitor is arranged between the first node and a grounding end;
the comparator, the inverting input end receives a reference voltage, the positive phase input end connects the said first node;
the setting end of the latch is connected with the output end of the comparator, and the zero setting end of the latch is connected with a third clock signal end;
a resistor, a first end of which is connected to the first node;
the third switch unit is connected with the second end of the resistor, a ground terminal and the output terminal of the latch and is used for responding to the signal of the output terminal of the latch and transmitting the signal of the second end of the resistor to the ground terminal;
the counter is connected with the output end of the latch and is used for detecting the number of times of high level of the output end of the latch;
and the third processor is connected with the counter and used for acquiring the capacitance of the first capacitor in combination with the times of high level of the output end of the latch.
7. The stylus of any one of claims 1-6, further comprising:
and the power storage unit is used for supplying power to the detection unit, the first processing unit and the signal generation unit.
8. A stylus driving method for driving the stylus according to any one of claims 1 to 7, comprising:
detecting the tilt state of the stylus by using a detection unit and generating tilt information;
generating a control signal according to the inclination information by using a first processing unit;
and generating an excitation signal according to the control signal by using a signal generating unit.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910229446.4A CN109947272B (en) | 2019-03-25 | 2019-03-25 | Stylus pen and driving method |
| US16/631,234 US11093050B2 (en) | 2018-05-30 | 2019-05-29 | Electronic pen and inclined handwriting adjustment method thereof, inclined handwriting adjustment system, and adjustment method thereof |
| PCT/CN2019/089097 WO2019228422A1 (en) | 2018-05-30 | 2019-05-29 | Electronic pen and inclined handwriting adjustment method thereof, inclined handwriting adjustment system, and adjustment method thereof |
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| CN110851004B (en) * | 2019-11-19 | 2023-10-27 | 合肥京东方光电科技有限公司 | Touch pen, driving method thereof and touch system |
| CN113966498B (en) * | 2020-02-18 | 2023-05-26 | 京东方科技集团股份有限公司 | Active pen, active pen touch system and touch method |
| CN111837095B (en) * | 2020-03-17 | 2024-07-26 | 深圳市汇顶科技股份有限公司 | Active pen |
| CN112631441B (en) * | 2020-12-18 | 2023-12-12 | 敦泰电子（深圳）有限公司 | Touch scanning driving method and active pen |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103677335A (en) * | 2012-09-14 | 2014-03-26 | 三星电子株式会社 | Stylus pen, input processing method using the same, and electronic device therefor |
| CN204115724U (en) * | 2014-11-04 | 2015-01-21 | 湖南科技学院 | A kind of solid pendulum capacitance-type inclination angle sensor |
| US9081448B2 (en) * | 2011-11-04 | 2015-07-14 | 3M Innovative Properties Company | Digitizer using multiple stylus sensing techniques |
| CN105653069A (en) * | 2014-11-28 | 2016-06-08 | 三星电子株式会社 | Pen input device, method for correcting input coordinate thereof and electronic device for supporting the same |
| CN105807962A (en) * | 2016-03-30 | 2016-07-27 | 汉王科技股份有限公司 | Touch device and method for measuring inclination angle of capacitance pen |
| CN106383600A (en) * | 2016-09-13 | 2017-02-08 | 合肥京东方光电科技有限公司 | Touch pen, touch input system and control method of touch input system |
| CN108027668A (en) * | 2015-09-08 | 2018-05-11 | 苹果公司 | Active stylus annular electrode |
| CN108595029A (en) * | 2018-04-27 | 2018-09-28 | 广州视源电子科技股份有限公司 | Method, device and equipment for determining inclination angle of capacitive pen and storage medium |
| CN109240521A (en) * | 2018-09-21 | 2019-01-18 | 合肥京东方光电科技有限公司 | Active stylus, touch input system and its driving method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9785263B2 (en) * | 2013-08-22 | 2017-10-10 | Microchip Technology Incorporated | Touch screen stylus with force and/or angle sensing functionality |
| CN108189587A (en) * | 2018-03-02 | 2018-06-22 | 张理杰 | A kind of propelled pen |
-
2019
- 2019-03-25 CN CN201910229446.4A patent/CN109947272B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9081448B2 (en) * | 2011-11-04 | 2015-07-14 | 3M Innovative Properties Company | Digitizer using multiple stylus sensing techniques |
| CN103677335A (en) * | 2012-09-14 | 2014-03-26 | 三星电子株式会社 | Stylus pen, input processing method using the same, and electronic device therefor |
| CN204115724U (en) * | 2014-11-04 | 2015-01-21 | 湖南科技学院 | A kind of solid pendulum capacitance-type inclination angle sensor |
| CN105653069A (en) * | 2014-11-28 | 2016-06-08 | 三星电子株式会社 | Pen input device, method for correcting input coordinate thereof and electronic device for supporting the same |
| CN108027668A (en) * | 2015-09-08 | 2018-05-11 | 苹果公司 | Active stylus annular electrode |
| CN105807962A (en) * | 2016-03-30 | 2016-07-27 | 汉王科技股份有限公司 | Touch device and method for measuring inclination angle of capacitance pen |
| CN106383600A (en) * | 2016-09-13 | 2017-02-08 | 合肥京东方光电科技有限公司 | Touch pen, touch input system and control method of touch input system |
| CN108595029A (en) * | 2018-04-27 | 2018-09-28 | 广州视源电子科技股份有限公司 | Method, device and equipment for determining inclination angle of capacitive pen and storage medium |
| CN109240521A (en) * | 2018-09-21 | 2019-01-18 | 合肥京东方光电科技有限公司 | Active stylus, touch input system and its driving method |
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