CN106406589B - Dual-mode touch method, and touch pen and touch panel suitable for same - Google Patents
Dual-mode touch method, and touch pen and touch panel suitable for same Download PDFInfo
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- CN106406589B CN106406589B CN201510454386.8A CN201510454386A CN106406589B CN 106406589 B CN106406589 B CN 106406589B CN 201510454386 A CN201510454386 A CN 201510454386A CN 106406589 B CN106406589 B CN 106406589B
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Abstract
A dual-mode touch method and a touch pen and a touch panel suitable for the method are provided, the dual-mode touch method is suitable for the touch pen and the touch panel comprising N first signal lines and M second signal lines, wherein N and M are integers larger than one, and the method comprises the following steps. And sequentially controlling the N first signal lines to emit the corresponding N pulse signals in N gesture time intervals in the scanning time interval. And receiving M corresponding gesture feedback signals by M second signal lines in each gesture time interval of the N gesture time intervals. Selectively generating a gesture signal according to the gesture feedback signal. And judging the stroke time intervals outside the N gesture time intervals in the scanning time interval by the touch pen according to the N pulse signals. And transmitting a touch control pen signal in a pen touch time interval by using a touch control pen. The touch panel receives the touch pen signal to generate a pen touch signal.
Description
Technical Field
The present invention relates to a touch method, and a stylus and a touch panel using the same, and more particularly, to a dual-mode touch method, and a stylus and a touch panel using the same.
Background
Since the advent of touch technology, touch technology has been applied to many electronic devices. Touch technology has been developed from early touch pen input to input with the user's finger, and finally both. Dual mode inputs are therefore widely found in many electronic devices.
One problem with a dual mode input, however, is false touches. The so-called error touch means that the command inputted by the user with the finger is used as the command inputted by the user with the stylus pen, or the command inputted by the user with the stylus pen is used as the command inputted by the user with the finger. When a user uses a finger and a stylus to control an electronic device on a touch panel, how the electronic device distinguishes a gesture of the finger from a pen touch of the stylus is a problem to be solved.
Disclosure of Invention
When a user uses a finger and a stylus to control an electronic device on a touch panel, how the electronic device distinguishes a gesture of the finger from a pen touch of the stylus is a problem to be solved. Therefore, the present invention is directed to a dual-mode touch method, a touch pen and a touch panel suitable for the method, wherein the touch panel can accurately distinguish between the input of the touch pen and the input of a finger by using a time-sharing input technique.
According to an embodiment of the present invention, a dual mode touch method is suitable for a stylus and a touch panel including N first signal lines and M second signal lines, where N and M are integers greater than one, the method includes: and sequentially controlling the N first signal lines to emit the corresponding N pulse signals in N gesture time intervals in the scanning time interval. And receiving M corresponding gesture feedback signals by M second signal lines in each gesture time interval of the N gesture time intervals. Selectively generating a gesture signal according to the gesture feedback signal. And judging the stroke time intervals outside the N gesture time intervals in the scanning time interval by the touch pen according to the N pulse signals. And transmitting a touch control pen signal in a pen touch time interval by using a touch control pen. The touch panel receives the touch pen signal to generate a pen touch signal.
The touch pen according to an embodiment of the present invention includes a wireless receiving module, a processing module and a wireless transmitting module. The wireless receiving module is used for wirelessly receiving the pulse signal from the touch panel. The processing module is electrically connected to the wireless receiving module and used for judging a stroke time interval related to the touch panel according to the pulse signal and selectively generating a touch pen signal within the stroke time. The wireless transmitting module is electrically connected to the processing module and used for transmitting the touch control pen signal.
The touch panel according to an embodiment of the invention includes N first signal lines, M second signal lines, and a touch processing module. Wherein the M second signal lines are overlapped with the N first signal lines without electrical connection and parallel. The touch control processing module is respectively electrically connected with the N first signal lines and the M second signal lines, and is used for controlling the N first signal lines to sequentially transmit pulse signals in N gesture time intervals in a scanning time interval, selectively generating gesture touch control signals according to M gesture feedback signals received by the M second signal lines, controlling the N first signal lines and the M second signal lines to receive touch control pen signals in N touch time intervals in a scanning time interval, and selectively generating the touch control signals according to the touch control pen feedback signals corresponding to the touch control pen signals. The ith gesture time interval in the N gesture time intervals is adjacent to the ith stroke time interval in the N stroke time intervals in terms of time, M and N are integers larger than one, and i is a positive integer smaller than or equal to N.
In summary, according to the dual-mode touch method disclosed in the embodiment of the invention, the stylus generates the stylus signal within the stroke time interval determined by the touch panel. The touch panel can distinguish gesture input from pen touch input, so that the possibility of occurrence of false touch judgment is reduced.
Drawings
FIG. 1 is a schematic view of a touch panel according to an embodiment of the invention;
FIG. 2 is a functional block diagram of a stylus according to an embodiment of the invention;
FIG. 3 is a signal timing diagram according to an embodiment of the present invention;
FIG. 4 is a signal timing diagram according to another embodiment of the present invention;
FIG. 5 is a flowchart of a dual-mode touch method according to an embodiment of the invention.
Wherein the reference numerals
100 touch panel
111-11N first signal line
121-12M second signal line
130 touch control processing module
200 touch control pen
210 wireless receiving module
220 processing module
230 wireless transmitting module
240 actuating module
T1～TNGesture time interval
Tsty、Tsty1Time interval of pen touch
V111～V11NVoltage of
VRX、VstyVoltage of
Detailed Description
The detailed features and advantages of the present invention are described in detail in the following embodiments, which are sufficient for anyone skilled in the art to understand the technical contents of the present invention and to implement the present invention, and the objectives and advantages related to the present invention can be easily understood by anyone skilled in the art according to the disclosure of the present specification, the scope of the claims and the accompanying drawings. The following examples further illustrate aspects of the present invention in detail, but are not intended to limit the scope of the invention in any way.
Referring to fig. 1 and 2, fig. 1 is a schematic view of a touch panel according to an embodiment of the invention, and fig. 2 is a functional block diagram of a touch pen according to an embodiment of the invention. As shown in fig. 1, the touch panel 100 has N first signal lines 111 to 11N, M second signal lines 121 to 12M and a touch processing module 130, where M and N are integers greater than one. The first signal line and the second signal line overlap each other but are not directly connected nor parallel. The touch processing module 130 is electrically connected to the N first signal lines 111 to 11N and the M second signal lines 121 to 12M, respectively. As shown in fig. 2, the stylus pen 200 has a wireless receiving module 210, a processing module 220 and a wireless transmitting module 230. The processing module 220 is electrically connected to the wireless receiving module 210 and the wireless transmitting module 230 respectively. In some embodiments, the wireless receiving module 210 and the wireless transmitting module 230 may be integrated into a wireless transceiver (wireless transceiver).
In the present embodiment, please refer to fig. 3, which is a signal timing diagram according to an embodiment of the invention. As shown in FIG. 3, the time taken for touch panel 100 to scan the touch of the user's finger and/or the touch of stylus 200 each time can be referred to as a scanning time interval Tscan. A scanning time interval TscanCan be divided into N gesture time intervals T1To TNAnd a stroke time interval Tsty. In the gesture time intervalT1In the above embodiment, the touch processing module 130 controls the first signal line 111 to transmit the pulse signal, so that the voltage V of the first signal line 111111There will be up and down undulations. Meanwhile, the touch processing module 130 controls the M second signal lines 121 to 12M to receive the gesture feedback signals corresponding to the pulse signals, respectively, so that the voltage V of the second signal lineRXThere will be up and down undulations accordingly. Specifically, the gesture feedback signal when the touch panel 100 is touched by a finger is different from the gesture feedback signal when the touch panel 100 is not touched by a finger, so that the touch processing module 130 can determine whether M intersections of the first signal line 111 and the second signal lines 121 to 12M are touched by a finger of a user or other objects. In turn, the gesture time intervals T are sequentially arranged1To TNThe touch processing module 130 performs the same control so that if the gesture time interval T is reachedkIn the above, the touch processing module 130 determines that the second signal line 12q is touched by a finger, and the touched position of the finger is the intersection of the first signal line 11k and the second signal line 12 q.
In this embodiment, after the gesture time interval TN, there is a stroke time interval Tsty. In gesture time interval T1The pulse signal transmitted by the first signal line 111 includes information about the time when the pulse signal is generated. For example, the flag 0x1 can be decoded from the pulse signal transmitted by the first signal line 111, and the flag 0x N can be decoded from the pulse signal transmitted by the first signal line 11N. Thus, if the position of the stylus pen 200 is closest to the first signal line 11k, the processing module 220 decodes the pulse signal to obtain the flag 0xk after the wireless receiving module 210 of the stylus pen 200 receives the pulse signal. After the processing module 220 decodes the first and second flags 0xk for multiple times, the processing module 220 may calculate a scanning time interval T of the touch panel 100 according to a time interval between the first and second flags 0xkscanLength of (d). When the scanning time interval T is judgedscanAfter the length of the touch time interval T, the processing module 220 may estimate the touch time interval TstyAnd gesture time interval TkThe time difference between them. Thus, during the stroke time, the processing module 220 is onThe over-wireless transmitting module 230 transmits the stylus signal, i.e. the voltage V is shownstyIn the stroke time interval TstyThere are up and down undulations in the middle.
In another embodiment, the pulse signal and the stroke time interval T are embedded in the pulse signal transmitted by each first signal linestyTime difference information between them. For example, assume that N equals 100, one scan interval is 9 milliseconds in length, and each gesture interval is 80 microseconds in length. Then the gesture time interval T1Time interval T of pen touchstyThe time difference between is 80 microseconds multiplied by 99, i.e. 7.92 milliseconds. The information is embedded in the pulse signal transmitted by the first signal line, so that the processing module 220 of the stylus pen 200 decodes the pulse signal received by the wireless receiving module 210 to obtain the time information. The processing module waits for 7.92 ms and then transmits the pulse signal transmitted by the nth signal line in the reverse direction or the forward direction by the stylus signal via the wireless transmitting module 230.
In yet another embodiment, the Nth gesture time interval TNTime interval T of pen touchstyIn between, there is a prompt time interval. In the prompt time interval, the touch processing module 130 controls each of the first signal lines to generate a prompt signal. Thus, when the wireless receiving module 210 of the stylus pen 200 receives the prompt signal, the processing module 220 transmits the stylus signal through the wireless transmitting module 230. In one embodiment, the indication signal may be embedded with time length information of the pen-touch time interval, so that the processing module 220 may accurately transmit the stylus signal in the pen-touch time interval.
In one embodiment, the stroke time interval TstyIn this case, the first signal lines 111 to 11N do not transmit the pulse signal, but do not have to be switched to receive the pulse signal. Moreover, the second signal lines 121 to 12M are still enabled (enabled) to receive the pulse signal and/or the stylus signal. In other words, in the gesture time interval, the first signal line is used for transmitting the pulse signal, and the second signal line is used for receiving the induction pulse signal. In addition, theIn the stroke time interval, both the first signal line and the second signal line can be used to receive the stylus signal transmitted by the stylus 200, or only the second signal lines 121 to 12M can be used to receive the sensing signal. So that the jth second signal line 12j receives a stylus signal if it is after the ith first signal line 11 i. The touch processing module 130 can determine that the position of the touch pen 200 corresponds to the intersection of the ith first signal line 11i and the jth second signal line 12j, thereby generating a pen touch signal. On the other hand, the touch processing module 130 finds the plurality of stylus feedback signals with the maximum intensity according to the (M + N) stylus feedback signals received by the first signal lines 111 to 11N and the second signal lines 121 to 12M, so as to determine the position of the stylus 200.
In another embodiment, the stylus signal is embedded with a stroke (e.g., the texture and thickness of a line) or other specific control information that the user wants to use. The touch processing module 130 embeds information of the pen stroke, control information, and position information of the stylus 200 into the pen stroke signal.
In another embodiment, referring back to fig. 2, the stylus 200 further includes an actuating module 240 electrically connected to the processing module 220. The brake module 240 is, for example, a button, and has a first state (released) and a second state (pressed), and when the brake module 240 is in the first state, the processing module 220 does not generate the stylus signal. Conversely, when the brake module 240 is in the second state, the processing module 220 generates the stylus signal.
In another embodiment, please refer to fig. 4, which is a timing diagram of a signal according to another embodiment of the present invention. As shown in FIG. 4, the time taken for touch panel 100 to scan the touch of the user's finger and/or the touch of stylus 200 each time can be referred to as a scanning time interval Tscan. A scanning time interval TscanCan be divided into N gesture time intervals T1To TNAnd N stroke time intervals. In gesture time interval T1In the middle, the touch processing module 130 controls the first signal line 111 to transmit the pulse signal, so the voltage V111 of the first signal line 111 fluctuates up and down. Meanwhile, the touch processing module 130 controls the M second signal lines121 to 12M respectively receive gesture feedback signals corresponding to the pulse signals. Specifically, the gesture feedback signal when the touch panel 100 is touched by a finger is different from the gesture feedback signal when the touch panel 100 is not touched by a finger, so that the touch processing module 130 can determine whether M intersections of the first signal line 111 and the second signal lines 121 to 12M are touched by a finger of a user. In turn, the gesture time intervals T are sequentially arranged1To TNThe touch processing module 130 performs the same control so that if the gesture time interval T is reachedkIn the above, the touch processing module 130 determines that the second signal line 12q is touched by a finger, and the touched position of the finger is the intersection of the first signal line 11k and the second signal line 12 q.
In this embodiment, the gesture time interval T1And gesture time interval T2In between, there is a stroke time interval Tsty1. Similarly, during gesture time interval T2And gesture time interval T3(not shown) there is a stroke time interval Tsty2(not shown). Assuming that the stylus pen 200 is located between the first signal line 111 and the first signal line 112, the wireless receiving module 210 of the stylus pen 200 receives the multi-gesture time interval T1And gesture time interval T2In addition, after the pulse signals transmitted by the first signal lines 111 and 112 of the touch panel 100 are received, the processing module 220 determines the gesture time interval T1And gesture time interval T2With a stroke time interval T in betweensty1. So that the processing module 220 will be in the stroke time interval Tsty1The stylus signal is transmitted through the wireless transmission module 230.
The touch processing module 130 of the touch panel 100 collects a whole scanning time interval Tscan--The stylus feedback signal received by each second signal line during N total stroke time intervals, wherein the strength of the stylus feedback signal is determined to be zero even if the stylus signal is not received. That is, the touch processing module 130 determines the position of the stylus 200 according to a total of M × N stylus feedback signals.
In one embodiment, the stroke time interval Tsty1In this case, the first signal lines 111 to 11N are disabled from transmitting the pulse signal and are not used for receiving the stylus signal, and the second signal lines 121 to 12M are still enabled (enabled) to receive the stylus signal. In other words, in the gesture time interval, the first signal line is used for transmitting the pulse signal, and the second signal line is used for receiving the induction pulse signal. During the stroke time interval, the first signal line is disabled to save power consumption, and the second signal line is used to receive the stylus signal transmitted by the stylus 200.
In summary, in an embodiment of the present invention, a dual-mode touch method for a touch panel and a stylus can refer to fig. 1, fig. 2 and fig. 5, where fig. 5 is a flowchart of the dual-mode touch method according to an embodiment of the present invention. In step S100, the touch processing module 130 of the touch panel 100 sequentially controls the N first signal lines 111 to 11N to emit corresponding N pulse signals in N gesture time intervals of the scanning time interval. In step S200, M gesture feedback signals are received by M second signal lines 121 to 12M in each of the N gesture time intervals. In step S300, the touch processing module 130 selectively generates a gesture signal according to the received gesture feedback signals. In step S400, the touch pen 200 determines at least one touch time interval other than the N gesture time intervals in the scanning time interval according to the N pulse signals. In step S500, the stylus 200 transmits a stylus signal during the stroke time interval. In step S600, the second signal line and/or the first signal line of the touch panel 100 receives the touch pen signal to generate a pen touch signal.
In summary, according to the dual-mode touch method, the touch pen and the touch panel disclosed in one or more embodiments of the present invention, the touch panel determines the pen touch time interval for sensing the touch pen signal. The touch pen knows the stroke time interval according to the pulse signal transmitted by the touch panel, so that the touch pen signal is transmitted in the stroke time interval. Therefore, the touch panel can avoid the misjudgment of the touch of the finger of the user as the input of the touch pen and also can avoid the misjudgment of the input of the touch pen as the touch of the finger of the user.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (14)
1. A dual-mode touch method is suitable for a touch panel and at least one touch pen, the touch panel comprises N first signal lines and M second signal lines, N and M are integers greater than one, the method comprises the following steps:
sequentially controlling the N first signal lines to emit corresponding N pulse signals in N gesture time intervals in a scanning time interval, wherein the scanning time interval is also provided with at least one touch time interval;
receiving M corresponding gesture feedback signals in each gesture time interval in the N gesture time intervals through the M second signal lines;
selectively generating a gesture signal according to the gesture feedback signals;
the at least one touch pen judges the at least one touch time interval determined by the touch panel outside the N gesture time intervals in the scanning time interval according to the N pulse signals;
the at least one touch control pen transmits a touch control pen signal in the at least one touch time interval; and
in the at least one touch time interval, the touch pen signal is received by the M second signal lines or the N first signal lines and the M second signal lines simultaneously to generate a touch signal.
2. The dual-mode touch method of claim 1, wherein the pen touch signal comprises:
generating a position information of the stylus for the stylus signal;
a touch information about the stylus; and
and feeding back the information of the at least one touch pen.
3. The dual-mode touch method of claim 2, wherein the number of the at least one touch time interval is 1.
4. The dual-mode touch method as claimed in claim 3, wherein an i-th pulse signal of the N pulse signals further includes a time difference between the i-th gesture time interval of the N gesture time intervals and the at least one touch time interval, wherein i is a positive integer less than or equal to N.
5. The dual-mode touch method of claim 3, further comprising:
in a prompt time interval after the Nth gesture time interval, controlling each first signal line to generate a prompt signal;
wherein the at least one stroke time interval is after the prompt time interval.
6. The dual-mode touch method as claimed in any one of claims 3 to 5, wherein the position information is determined by M + N stylus feedback signals related to the stylus signal received by the N first signal lines and the M second signal lines.
7. The dual-mode touch method of claim 2, wherein the scanning time interval further has N stroke time intervals, wherein an ith stroke time interval of the N stroke time intervals is temporally adjacent to an ith gesture time interval of the N gesture time intervals, and i is a positive integer less than or equal to N.
8. The dual-mode touch method of claim 7, wherein the N first signal lines are disabled during the N stroke time intervals.
9. The dual-mode touch method of claim 7 or 8, further comprising:
collecting M multiplied by N touch control pen feedback signals received by the M second signal lines in the N pen touch time intervals; and
and determining the position information according to the M multiplied by N touch control pen feedback signals.
10. A stylus, comprising:
a wireless receiving module for wirelessly receiving at least one pulse signal from a touch panel, wherein a scanning time interval of the touch panel has a touch time interval;
a processing module, electrically connected to the wireless receiving module, for determining the stroke time interval determined by the touch panel according to the at least one pulse signal, and selectively generating a touch pen signal within the stroke time interval; and
and the wireless transmitting module is electrically connected to the processing module and used for transmitting the touch control pen signal.
11. The touch control pen of claim 10, wherein each of the at least one pulse signal includes a piece of information about a time of the pulse signal, the processing module determines the stroke time interval according to the piece of information, and the piece of information indicates a time difference between the pulse signal and the stroke time interval.
12. The touch pen of claim 10, wherein the at least one pulse signal includes an indication signal indicating a start of the stroke time interval, and the processing module determines a predetermined time interval beginning with a negative edge of the indication signal as the stroke time interval.
13. The stylus of claim 10, further comprising an actuator module electrically connected to the processing module, the actuator module having a first state and a second state, the processing module not generating the stylus signal when the actuator module is in the first state, and the processing module generating the stylus signal when the actuator module is in the second state.
14. A touch panel, comprising:
n first signal lines;
m second signal lines overlapping the N first signal lines and not connected to the N first signal lines; and
a touch control processing module, electrically connected to the N first signal lines and the M second signal lines, for controlling the N first signal lines to sequentially emit a pulse signal in N gesture time intervals within a scanning time interval, the scanning time interval further having N touch time intervals, and selectively generating a gesture touch control signal according to M gesture feedback signals received by the M second signal lines, and controlling the N first signal lines and the M second signal lines to receive a touch control signal in the N touch time intervals within the scanning time interval determined by the touch panel according to the pulse signal, and selectively generating a touch control signal according to at least one touch control pen feedback signal corresponding to the touch control pen signal;
wherein the ith gesture time interval in the N gesture time intervals is adjacent to the ith stroke time interval in the N stroke time intervals in terms of time, M and N are integers more than one, and i is a positive integer less than or equal to N.
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