WO2016185838A1 - Stylet, système d'écran tactile, et appareil électronique - Google Patents

Stylet, système d'écran tactile, et appareil électronique Download PDF

Info

Publication number
WO2016185838A1
WO2016185838A1 PCT/JP2016/061928 JP2016061928W WO2016185838A1 WO 2016185838 A1 WO2016185838 A1 WO 2016185838A1 JP 2016061928 W JP2016061928 W JP 2016061928W WO 2016185838 A1 WO2016185838 A1 WO 2016185838A1
Authority
WO
WIPO (PCT)
Prior art keywords
touch
drive
pen
signal
touch panel
Prior art date
Application number
PCT/JP2016/061928
Other languages
English (en)
Japanese (ja)
Inventor
淳 森脇
誠一 濱
倫明 武田
守 高谷
貴弘 堅山
Original Assignee
シャープ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2016185838A1 publication Critical patent/WO2016185838A1/fr

Links

Images

Classifications

    • 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
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • 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
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Definitions

  • the present invention relates to a touch pen capable of transmitting a signal, a touch panel used in combination with the touch pen, a touch panel system including a touch panel controller that performs control for driving the touch panel, and an electronic device including the touch panel system. .
  • touch panels have become indispensable as input means to electronic devices. From relatively large devices such as televisions, monitors, and whiteboards to relatively small devices such as smartphones and tablet terminals, touch panels are generally used as input means.
  • touch pen has a dedicated touch pen that can give not only information related to the touch position but also additional information (for example, information on whether the button is pressed or writing pressure).
  • additional information for example, information on whether the button is pressed or writing pressure.
  • Many touch panel systems have been proposed that can perform input with a touch pen, and can realize more various inputs with higher accuracy.
  • Patent Document 1 discloses a touch panel system that can accurately detect each touch position even when touch operations with a plurality of electronic pens and fingers are performed simultaneously.
  • the touch panel system of Patent Document 1 includes a plurality of transmission electrodes (first signal lines) to which a drive signal and a pen synchronization signal are applied by a transmission unit, and a plurality of reception electrodes (second signal lines) that output response signals to the reception unit. ), An electronic pen (touch pen), and a control unit.
  • the electronic pen sends a pen identification signal to the receiving electrode in response to detecting the pen synchronizing signal of the transmitting electrode, and the control unit controls the driving timing at which the transmitting unit applies the driving signal and the pen synchronizing signal to the transmitting electrode.
  • the touch position is detected based on the detection data output by the receiving unit.
  • the drive timing of an electronic pen and the drive timing which a control part drives a transmission electrode can be synchronized, and the indicator which performed touch operation based on a pen identification signal can be discriminate
  • the touch operation with a finger and the touch operation via an electronic pen can be detected simultaneously.
  • Japanese Patent Publication Japanese Patent Laid-Open No. 2012-22543 (published February 2, 2012)” Japanese Patent Publication “Japanese Patent Laid-Open No. 2011-164801 (published on August 25, 2011)”
  • the touch panel controller recognizes the presence of the electronic pen by detecting the drive signal from the electronic pen based on the change in the capacitance of the touch panel caused by the drive signal emitted by the electronic pen.
  • the information from the electronic pen is received by identifying the code placed on the driving signal from the electronic pen, and the position of the electronic pen is identified by analyzing the distribution of the intensity of the driving signal from the electronic pen It is like that.
  • the electronic pen when the electronic pen is close to the touch panel, that is, in the touch state, the strength of the drive signal from the electronic pen received by the touch panel controller is sufficiently large, and as a result, the accuracy of the drive signal detection is sufficiently high. . Therefore, when in the touch state, priority is given to accurately detecting the position where the electronic pen panel is touched, that is, the position of the pen tip. Further, when in the touch state, the position of the pen tip is indicated by the position of the drive node, and the position of the drive node is specified by obtaining the center of gravity of the intensity distribution of the drive signal from the electronic pen. For this reason, in order to improve the accuracy of position detection, it is preferable to make the range of the drive node as small (narrow) as possible.
  • the electronic pen when the electronic pen is far from the touch panel, that is, when it is in the hover state, the position specifying accuracy of the electronic pen is acceptable even if it is low. Therefore, when in the hover state, priority is given to recognizing the presence of the electronic pen and receiving information from the electronic pen.
  • the farther the electronic pen is from the touch panel the smaller the intensity of the drive signal received from the electronic pen received by the touch panel controller, and as a result, the accuracy of drive signal detection becomes lower. Therefore, in order to recognize the presence of the electronic pen and receive information from the electronic pen even when the electronic pen is far from the touch panel, it is required to increase the strength of the driving signal of the electronic pen. Is done. In order to increase the strength of the driving signal of the electronic pen, it is preferable to increase (wide) the range of the driving node of the electronic pen.
  • Patent Document 2 discloses a technique of dividing a drive node into a plurality of parts and supplying different drive signals to each of the divided drive nodes.
  • the range of the drive nodes as a whole is in a touch state. Regardless of whether the state is the hover state or the hover state, it is always fixed within a certain range. For this reason, with the technique disclosed in Patent Document 2, it is impossible to satisfy both the request for improvement in the position specifying accuracy of the electronic pen in the touch state and the request for improvement in the accuracy of drive signal detection in the hover state.
  • the present invention has been made in view of the above-described problems, and its purpose is a touch pen that can improve both the accuracy of position determination of the touch pen in the touch state and the accuracy of drive signal detection in the hover state. Is to provide.
  • a touch pen is a touch pen capable of transmitting a signal, provided at a pen tip portion of the touch pen, and a drive node that transmits a drive signal to the touch panel. And a drive node control unit that controls the size of the range of the drive node according to whether the touch pen is in a touch state or a hover state with respect to the touch panel.
  • FIG. 1 It is a block diagram showing a schematic structure of a touch panel system concerning Embodiment 1 of the present invention.
  • the touch panel system is a diagram showing a signal waveform outputted from the touch panel controller to the drive line D 0 ⁇ D n, an example of a signal waveform corresponding to the drive line D n + 1 where the pen is driven.
  • FIG. 1 is a block diagram illustrating a schematic configuration of the touch panel system 1.
  • the touch panel system 1 includes a touch panel 2, a stylus pen 3 (touch pen), and a touch panel controller 4 that drives the touch panel 2 and the stylus pen 3.
  • the touch panel 2 is provided with a plurality (n) of drive lines D 0 to D n extending in the horizontal direction in the drawing in parallel, and the sense line S 0 extending in the vertical direction in the drawing.
  • ⁇ S m are provided in parallel a plurality (m pieces).
  • a capacitance (intersection) is formed at a location (intersection) where each of the drive lines D 0 to D n (first signal line) and each of the sense lines S 0 to S m (second signal line) intersect. (Not shown) is provided.
  • the above m and n may be the same or different.
  • a touch panel to which the present invention can be applied is not limited to a capacitive touch panel.
  • the present invention relates to another type of touch panel that can read signal values from sensors provided on the touch panel in a matrix (for example, a resistive film type that can read a plurality of electric resistance values distributed in a matrix.
  • the touch panel may be applied.
  • the stylus pen 3 drives the pen tip portion of the stylus pen 3 with the same waveform as the touch panel controller 4 drives the drive line Dn + 1, and the capacitance on the touch surface of the touch panel 2.
  • the change in capacitance is detected via each of the sense lines S 0 to S m, and whether the button provided on the stylus pen 3 is pressed by the user,
  • the touch panel controller 4 detects additional information such as writing pressure.
  • the waveform for driving the pen tip may not necessarily be D n + 1 such as D n + 2 .
  • the pen tip may be driven with a waveform corresponding to D 0 , or the pen tip may be driven with a waveform after D n + 2 .
  • the distance between the touch panel 2 and the stylus pen 3 can be calculated from the change in the capacitance due to the touch (the magnitude of the touch reaction) by the touch panel controller 4, for example.
  • FIG. 2 is a diagram showing signal waveforms output from the touch panel controller 4 to the drive lines D 0 to D n and signal waveforms D n + 1 for driving the pen tip portion of the stylus pen 3.
  • the touch panel controller 4 outputs a reception preparation signal to each of the drive lines D 0 to D n during the reception preparation period, outputs a synchronization signal during the subsequent synchronization period, and outputs a data transmission signal during the subsequent data transmission period. And a drive signal (detection signal) is output during the subsequent touch and pen input detection period. As shown in FIG. 2, each period is periodically repeated, and a period from the reception preparation period to the touch and pen input detection period is defined as one record.
  • the reception preparation signals output to the drive lines D 0 to D n have the same waveform
  • the synchronization signals output to the drive lines D 0 to D n are
  • the data transmission signals output to the drive lines D 0 to D n have the same waveform.
  • the drive signal output to each of the drive lines D 0 to D n has a waveform in which the potential becomes High sequentially. That is, at the timing when the potential of the drive signal on the drive line D n ⁇ 1 changes from High to Low, the potential of the drive signal on the next drive line D n changes from Low to High.
  • the reception preparation signal is output to each of the drive lines D 0 to D n in the reception preparation period that is a period immediately before the synchronization period.
  • the stylus pen 3 detects the reception preparation signal output to each of the drive lines D 0 to D n and adjusts (corrects) the phase and / or amplitude of the subsequent signal based on the detected reception preparation signal.
  • a reception preparation period may be provided immediately before the data transmission period, and a reception preparation signal may be output to each of the drive lines D 0 to D n during the reception preparation period.
  • the synchronization signal is output to each of the drive lines D 0 to D n in the synchronization period following the reception preparation period.
  • the stylus pen 3 detects the synchronization signal output to each of the drive lines D 0 to D n , the drive timing of the stylus pen 3 and the drive timing of the touch panel controller 4 are synchronized.
  • the data transmission signal is output to each of the drive lines D 0 to D n in the data transmission period following the synchronization period.
  • the data transmission signal includes drive information of the touch panel 2 and information (touch / hover determination signal) indicating whether the stylus pen 3 is in a touch state or a hover state with respect to the touch panel 2.
  • the stylus pen 3 that has already been synchronized with the touch panel controller 4 in the synchronization period detects the data transmission signal output to each of the drive lines D 0 to D n , thereby allowing the stylus pen 3 to drive information and touch / touch information on the touch panel 2.
  • a hover determination signal is transmitted.
  • the drive signal is output to each of the drive lines D 0 to D n in the touch and pen input detection period following the data transmission period.
  • the touch panel controller 4 drives each drive line D 0 to D n by a drive signal, and detects a change in capacitance of the touch panel 2 due to a touch operation via each sense line S 0 to S m. It has become.
  • the electrostatic capacity of the touch panel 2 is changed by driving the pen tip portion of the stylus pen 3 with the signal waveform indicated by D n + 1 in FIG. 2, and the above static lines S 0 to S m are used to change the static capacitance. A change in electric capacity is detected, and the touch panel controller 4 detects additional information such as whether or not a button provided on the stylus pen 3 is pressed by the user and writing pressure.
  • the drive lines D 0 to D n and the pen tip portion using a signal waveform corresponding to D n + 1 are sequentially driven.
  • driving of the drive lines D 0 to D n and driving of the pen tip portion using a signal waveform corresponding to D n + 1 are driven in parallel.
  • the position of the detection target may be detected from the correlation value obtained by performing the correlation calculation of the code string, or the restoration value obtained by performing the restoration calculation of the code string
  • the position of the detection object may be detected from the above.
  • the number of sensing times (number of integrations) can be increased when driven in parallel.
  • a touch panel that improves the / N ratio and performs position detection with high accuracy can be realized.
  • the data transmission period is a period immediately after the synchronization period, but the data transmission period may be provided immediately after the touch and pen input detection period.
  • the reception preparation period is a period immediately before the synchronization period, but the reception preparation period may be a period immediately before the data transmission period.
  • FIG. 3 is a diagram illustrating a schematic circuit configuration of the touch panel 2 provided in the touch panel system 1.
  • a plurality (n) of drive lines D 0 to D n extending in the left-right direction in the figure are provided in parallel, and cross the drive lines D 0 to D n in the figure.
  • a plurality (m) of sense lines S 0 to S m extending in the vertical direction are provided in parallel.
  • Capacitances C 00 to C nm are provided at locations where the drive lines D 0 to D n and the sense lines S 0 to S m intersect.
  • the above m and n may be the same or different.
  • the stylus pen 3 When the stylus pen 3 approaches the touch surface of the touch panel 2, the stylus pen 3 detects the synchronization signal output from the touch panel controller 4 to each of the drive lines D 0 to D n and is synchronized with the touch panel controller 4.
  • the touch panel controller 4 drives each drive line D 0 to D n and touches the above-described touch line via each sense line S 0 to S m. A change in capacitance is detected, and a touch position and / or a distance between the touch panel 2 and the stylus pen 3 is calculated.
  • the stylus pen 3 of the present embodiment has, for example, a writing pressure sensor for detecting writing pressure, and a writing pressure signal from the writing pressure sensor is output while synchronizing with the touch panel controller 4. It is like that.
  • the stylus pen 3 is not necessarily limited thereto, and may not include a writing pressure sensor for detecting writing pressure.
  • FIG. 4 is a cross-sectional view showing the configuration of the stylus pen 3.
  • the stylus pen 3 includes a pen body 5 that is held by a user and has a conductive grip portion 5 a formed in a substantially cylindrical shape so that the user can hold it by hand.
  • a pen tip portion 6 pressed against the touch panel 2 during a touch operation, and a cap (pen tip portion, drive node) 6f made of a conductive member disposed so as to surround the pen tip portion 6.
  • the cap 6f is insulated from the grip portion 5a through an insulator 6e made of an insulating material disposed so as to surround the pen tip portion 6.
  • the pen tip portion 6 includes a pen tip cover 6a, a pen tip shaft (a pen tip portion, a drive node) 6b, insulators 6c and 6c that hold the pen tip cover 6a in an axially movable manner, and a pen tip shaft. And a writing pressure sensor 6d provided on the back side of 6b.
  • the pen tip cover 6a is made of an insulating material, and the pen tip shaft 6b is made of a conductive material, for example, a metal or a conductive synthetic resin material.
  • the writing pressure sensor 6d is composed of, for example, a semiconductor piezoresistive pressure sensor, and a semiconductor strain gauge is formed on the surface of a diaphragm (not shown). Therefore, when the pen tip cover 6a of the pen tip portion 6 is pressed against the touch panel 2 during the touch operation, the pen tip shaft 6b is pushed through the pen tip cover 6a to press the surface of the diaphragm of the writing pressure sensor 6d, Thereby, a change in electric resistance due to the piezoresistance effect generated by the deformation of the diaphragm is converted into an electric signal. Thereby, the writing pressure in the stylus pen 3 can be detected. Furthermore, the principle of pen pressure detection is not necessarily limited to this, and other detection principles can be employed.
  • the pen body 5 includes a connection switch 7, a control circuit (determination unit) 8, operation switching switches 9 a and 9 b, a sense circuit 10, a synchronization signal detection circuit (determination unit) 11, and a timing.
  • An adjustment circuit 12, a drive circuit (drive node control unit) 13, and an information signal reception circuit (determination unit) 29 are provided.
  • the connection switch 7 can be omitted. When the connection switch 7 is omitted, the output of the control circuit 8 is connected to the pen tip shaft 6b.
  • connection switch 7 is an electronic switch composed of a field effect transistor (FET) or the like, and is turned on / off by the control circuit 8.
  • FET field effect transistor
  • the connection switch 7 is off, the pen tip cover 6 a is electrically disconnected from the grip portion 5 a of the pen body 5.
  • the touch panel system 1 does not recognize the proximity / contact of the stylus pen 3 even if the pen tip cover 6 a is brought close to the touch panel 2.
  • the connection switch 7 when the connection switch 7 is turned on, the pen tip cover 6a is electrically connected to the grip portion 5a of the pen body 5 via the pen tip shaft 6b, and the human body is connected to the pen tip cover 6a via the grip portion 5a.
  • Conduct As a result, since the human body has a relatively large capacitance, when the stylus pen 3 approaches or comes into contact with the touch panel 2, the charges accumulated in the aforementioned capacitances C 00 to C nn of the touch panel 2 change.
  • the touch panel system 1 can detect the touch state of the stylus pen 3.
  • the stylus pen 3 is provided with, for example, a push-type first operation switch 14a and a second operation switch 14b. By pressing the first operation switch 14a and the second operation switch 14b, the first operation switch 14a and the second operation switch 14b are pressed.
  • the functions assigned to the first operation switch 14 a and the second operation switch 14 b are executed via the control circuit 8. Examples of the function assigned to the first operation switch 14a include an eraser function. The eraser function can be turned on / off with the first operation switch 14a. Further, as a function assigned to the second operation switch 14b, for example, a right click function of the mouse can be cited, and the right click function of the mouse can be turned on / off by the second operation switch 14b. is there.
  • eraser function and mouse right-click function are examples, and are not limited to the eraser function and mouse right-click function. It is also possible to add other functions by providing other operation switches.
  • the touch position of the stylus pen 3 on the touch panel 2 is detected by touching the stylus pen 3 on the touch panel 2 with the connection switch 7 of the stylus pen 3 turned on.
  • the pen tip portion of the stylus pen 3 is driven with a waveform corresponding to the drive line D n + 1 or the like, and the touch panel 2.
  • the capacitance on the touch surface is changed, the change in the capacitance is detected via each of the sense lines S 0 to S m, and the button provided on the stylus pen 3 is pressed by the user.
  • the touch panel controller 4 detects additional information such as the status and writing pressure.
  • FIG. 5 is a diagram illustrating a schematic configuration of the touch panel controller 4 provided in the touch panel system 1.
  • the touch panel controller 4 includes a drive line drive circuit 15 (drive circuit), a sense amplifier 16, a timing generator 17, a control unit 18, an AD converter 19, and a processing unit 20. I have.
  • the drive line drive circuit 15 receives the reception preparation signal, the synchronization signal, the data transmission signal, and the drive signal that are generated based on the clock signal CL generated by the timing generator 17, in each drive line D 0 to D. It is a circuit that outputs to n .
  • the sense amplifier 16 is a circuit that acquires capacitance data via the sense lines S 0 to S m based on the clock signal CL generated by the timing generator 17 and the drive signal, and sends the capacitance data to the AD converter 19. It is.
  • the timing generator 17 is a circuit that generates a clock signal CL and a synchronization signal based on the clock signal CL, and sends the generated signal to the drive line driving circuit 15, the sense amplifier 16, the control unit 18, and the like.
  • the AD converter 19 is a circuit that converts the capacity data into digital data and then sends it to the processing unit 20.
  • the processing unit 20 uses the capacity data to convert information related to the touch position, the magnitude of the touch response of the stylus pen 3 to the touch panel 2, that is, information that can be converted into the distance between the touch panel 2 and the stylus pen 3 and the user. Additional information such as whether or not a button provided on the stylus pen 3 is being pressed and writing pressure is detected. And the process part 20 performs the process corresponding to the detected information.
  • the control unit 18 During the reception preparation period, the synchronization period, and the data transmission period, the control unit 18 generates a thinning signal based on touch response magnitude data (information on the distance between the touch panel 2 and the stylus pen 3). Whether to output to the drive line drive circuit 15 is determined. That is, if the touch response magnitude data is equal to or greater than a predetermined value, a thinning signal is output. If the touch response magnitude data is less than the predetermined value, the drive signal is output without thinning out the drive line.
  • the synchronization period when the magnitude data of the touch response is greater than or equal to a predetermined value, that is, when the distance between the touch panel 2 and the stylus pen 3 is closer than the predetermined value.
  • the sync signal thinned out from the drive line driving circuit 15 is output.
  • the control unit 18 outputs a touch / hover determination signal to the drive line driving circuit 15 based on the magnitude data of the touch reaction (information on the distance between the touch panel 2 and the stylus pen 3). You may decide whether to do it. That is, if the touch response magnitude data is greater than or equal to the first threshold, a touch determination signal is output, and if the touch response magnitude data is less than the first threshold and greater than or equal to the second threshold, a hover determination signal is output. .
  • the touch determination is made from the drive line driving circuit 15
  • the signal is output as a data transmission signal.
  • the hover determination signal is output from the drive line drive circuit 15 as the data transmission signal.
  • the stylus pen 3 of the present embodiment transmits and receives signals to and from the touch panel controller 4 wirelessly. Accordingly, the pen tip portion is driven in the same pattern as driving the virtual drive line D n + 1 so as to match the drive timing of the drive lines D 0 to D n in the touch panel controller 4.
  • the stylus pen 3 is provided with a drive circuit 13 so as to be driven in the same manner as the driver of the touch panel controller 4.
  • the drive lines D 0 to D n in the touch panel controller 4 are driven based on the drive timing generated by the timing generator 17 (FIG. 5). For this reason, the stylus pen 3 must be operated in synchronization with the timing when the touch panel controller 4 is driven. Therefore, in the stylus pen 3 of the present embodiment, by providing the sense circuit 10, the synchronization signal detection circuit 11, and the timing adjustment circuit 12, the stylus pen 3 detects the synchronization signal driven by the touch panel controller 4, and the The timing of the synchronization signal of the touch panel controller 4 and the timing of the pen synchronization signal generated by the timing adjustment circuit 12 in the stylus pen 3 are made to coincide with each other.
  • the driving operation of the stylus pen 3 is a synchronization for detecting the synchronization signal from the touch panel controller 4 by the sense circuit 10 and the synchronization signal detection circuit 11 with the operation switch 9a turned on and the operation switch 9b turned off.
  • the signal detection period, the preparation period, and the operation changeover switch 9a are turned off, and the operation changeover switch 9b is turned on and the drive circuit 13 drives the pen tip portion to repeat the three periods. .
  • the synchronization signal detection period is a waiting period for detecting a bit pattern representing a synchronization waveform, and is a period in which the drive of the pen tip portion is turned off and the synchronization signal pattern is detected from the pen tip signal waveform.
  • the preparation period is a preparation period for starting to drive the pen tip portion in synchronization with the touch panel controller 4 after detecting the synchronization signal pattern, and is a period for taking the drive start timing.
  • the drive mode period is a period in which the pen tip portion is driven by the drive circuit 13 and is a period in which the pen tip portion is driven while finely adjusting the edge of the drive waveform so as to match the drive timing of the touch panel controller 4.
  • the drive circuit 13 of the stylus pen 3 is driven in accordance with the drive timing of the touch panel controller 4.
  • FIG. 6 is a diagram illustrating a correspondence relationship between the magnitude of the synchronization signal detected by the stylus pen 3 and the magnitude of the touch response of the stylus pen 3 to the touch panel 2 detected by the touch panel controller 4.
  • FIG. 6A is a diagram illustrating a case where the touch surface of the touch panel 2 and the stylus pen 3 are relatively far apart (for example, when the magnitude data of the touch response is less than the second threshold), In such a case, the stylus pen 3 hardly detects the waveform of the synchronization signal. Then, the magnitude of the touch response of the stylus pen 3 to the touch panel 2 detected by the touch panel controller 4 is also determined as having no touch reaction because the touch surface of the touch panel 2 and the stylus pen 3 are relatively far apart.
  • FIG. 6B shows a case where the touch surface of the touch panel 2 and the stylus pen 3 are relatively close to each other (for example, when the magnitude data of the touch response is less than the first threshold and greater than or equal to the second threshold).
  • the stylus pen 3 detects a small sync signal waveform.
  • the touch response of the stylus pen 3 to the touch panel 2 detected by the touch panel controller 4 is relatively small because the touch surface of the touch panel 2 and the stylus pen 3 are relatively close to each other. Determined.
  • FIG. 6C is a diagram illustrating a case where the touch surface of the touch panel 2 and the stylus pen 3 are in contact (for example, when the magnitude data of the touch response is equal to or greater than the first threshold value).
  • the stylus pen 3 detects a large sync signal waveform. Then, the magnitude of the touch response of the stylus pen 3 to the touch panel 2 detected by the touch panel controller 4 is determined as a large touch response (touch state) because the touch surface of the touch panel 2 and the stylus pen 3 are in contact. Is done.
  • the magnitude of the touch response of the stylus pen 3 to the touch panel 2 detected by the touch panel controller 4, that is, the distance between the touch panel 2 and the stylus pen 3 is determined during the touch and pen input detection period shown in FIG.
  • Each of the drive lines D 0 to D n is driven, and the change in the capacitance due to the touch is detected and calculated through each of the sense lines S 0 to S m .
  • the pen tip portion (the pen tip shaft 6b and / or the cap 6f) is driven by the drive circuit 13.
  • the drive circuit 13 is a drive circuit similar to the drive line drive circuit 15 of the touch panel controller 4.
  • the drive of the drive lines D 0 to D n by the drive line drive circuit 15 is based on the drive timing generated by the timing generator 17.
  • the stylus pen 3 in order to suitably transmit and receive signals between the stylus pen 3 and the touch panel controller 4, the stylus pen 3 also synchronizes with the timing at which the drive line drive circuit 15 drives the drive lines D 0 to D n. Therefore, driving by the drive circuit 13 needs to be performed.
  • the stylus pen 3 is provided with a sense circuit 10, a synchronization signal detection circuit 11, and a timing adjustment circuit 12.
  • the sense circuit 10 acquires a signal (waveform) including the synchronization signal generated by the timing generator 17 from the touch panel controller 4.
  • the signal includes an information signal (for example, a touch / hover determination signal) described later.
  • the synchronization signal detection circuit 11 detects a synchronization signal from the signal.
  • the timing adjustment circuit 12 refers to the synchronization signal detected by the synchronization signal detection circuit 11 and generates a pen synchronization signal. As a result, the timing of the pen synchronization signal can be matched with the timing of the synchronization signal generated by the timing generator 17.
  • the drive circuit 13 drives the pen tip portion in synchronization with the timing at which the drive line drive circuit 15 drives the drive lines D 0 to D n. be able to.
  • control unit 18 By the way, in order to suitably control the operation of the stylus pen 3 from the touch panel controller 4, it is necessary to transmit an information signal such as a control signal from the touch panel controller 4 to the stylus pen 3.
  • the stylus pen 3 is suitably controlled according to whether the stylus pen 3 is in a touch state or a hover state. be able to.
  • the stylus pen 3 can be suitably controlled according to the driving state of the touch panel 2.
  • the control signal is an example of the information signal.
  • the information signal may be, for example, a signal indicating whether the stylus pen 3 is in a touch state or a hover state.
  • the information signal may be a signal indicating, for example, whether the driving state of the touch panel 2 is an active state or an idle state (that is, whether the touch panel 2 is driven).
  • control unit 18 has a function of generating the information signal.
  • the stylus pen 3 is provided with an information signal receiving circuit 29 for receiving the information signal.
  • control unit 18 recognizes whether the stylus pen 3 is in the touch state or the hover state based on the magnitude data of the touch response notified from the processing unit 20. Then, the control unit 18 generates an information signal based on the recognition result.
  • the information signal may be represented as a digital signal.
  • the information signal may be represented as (i) a signal “0” when indicating a touch state, and (ii) a signal “1” when indicating a hover state.
  • the information signal is Manchester encoded in the same manner as the synchronization signal described above.
  • the signal “0” may correspond to the waveform High ⁇ Low
  • the signal “1” may correspond to the waveform Low ⁇ High.
  • the encoding method of the information signal need not be limited to the Manchester encoding method, and a known encoding method may be used.
  • a known encoding method may be used.
  • RZ Return-to-Zero
  • NRZ Non-Return-to-Zero Inversion
  • AMI code Alternate Mark Inversion code
  • CMI code Code Mark Inversion code
  • the information signal may be 1 bit. However, in order to perform error correction of the information signal, the information signal is preferably a multi-bit signal having the same value of each bit. In this embodiment, the information signal is 3 bits.
  • the information signal is represented as (i) a signal “000” when indicating a touch state, and (ii) a signal “111” when indicating a hover state.
  • the information signal may be N bits (N ⁇ 1), and the value of N may be appropriately determined by the designer of the touch panel system 1.
  • control unit 18 refers to a signal defining the operation of the drive line driving circuit 15 generated by the timing generator 17 so as to recognize whether the driving state of the touch panel 2 is an active state or an idle state. Then, the control unit 18 may generate an information signal based on the recognition result.
  • the information signal may be 1 bit. However, in order to perform error correction of the information signal, the information signal is preferably a multi-bit signal having the same value of each bit. In this embodiment, the information signal is 3 bits. Therefore, for example, the information signal may be represented as (i) a signal “000” when indicating an active state, and (ii) a signal “111” when indicating an idle state.
  • the information signal generated in the control unit 18 is transmitted from the touch panel controller 4 to the stylus pen 3 in the same manner as the synchronization signal described above.
  • the information signal is transmitted from the touch panel controller 4 to the stylus pen 3 following the synchronization signal.
  • the information signal receiving circuit 29 starts an operation of receiving an information signal triggered by the synchronization signal detection circuit 11 detecting the synchronization signal. Thereby, the information signal receiving circuit 29 can receive the information signal following the synchronization signal at an appropriate timing.
  • the information signal receiving circuit 29 may be provided with an error correction function.
  • the information signal receiving circuit 29 may perform error correction of the information signal by taking the majority of each bit of the information signal.
  • the information signal receiving circuit 29 may not have an error correction function.
  • the number of bits of the information signal is preferably N ⁇ 3.
  • the information signal receiving circuit 29 gives the received information signal to the timing adjusting circuit 12 or the control circuit 8.
  • the timing adjustment circuit 12 refers to the information signal and generates a pen synchronization signal corresponding to the driving state of the touch panel 2. Accordingly, the drive circuit 13 can recognize whether the touch panel 2 is driven in an active state or an idle state, and can generate a drive signal corresponding to the drive state of the touch panel 2.
  • the control circuit 8 refers to the information signal, and operates the drive circuit 13 to control a drive node to be described later by operating the drive circuit 13 depending on whether the stylus pen 3 is in a touch state or a hover state. good.
  • the control unit 18 When performed on the touch panel controller 4 side, as described above, based on the touch response magnitude data output from the processing unit 20 (see FIG. 5), the control unit 18 is configured between the touch panel 2 and the stylus pen 3. And the stylus pen 3 is in a touched state or a hovered state with respect to the touch panel 2 according to the calculation result.
  • the touch / hover determination signal is transmitted as an information signal to the stylus pen 3 through the operation of the drive line driving circuit 15, and the information signal receiving circuit 29 of the stylus pen 3 receives the touch / hover determination signal. It passes to the control circuit 8.
  • the control circuit 8 determines that the stylus pen 3 is in a touched state with respect to the touch panel 2 when the touch determination signal is acquired, and the stylus pen 3 with respect to the touch panel 2 when the hover determination signal is received. It is determined that it is in a state. As described above, by receiving the touch / hover determination signal from the touch panel controller 4, the stylus pen 3 can recognize whether the stylus pen 3 is in a touch state or a hover state with respect to the touch panel 2. it can. A configuration in which it is determined whether the stylus pen 3 is in a touch state or a hover state in accordance with the touch / hover determination signal received by the information signal reception circuit 29 described above, and the determination result is notified to the control circuit 8. It is also good.
  • the touch state and the hover state are identified on the stylus pen 3 side.
  • the writing pressure sensor 6d detects the writing pressure in the stylus pen 3 and notifies the control circuit 8 of the detection result. If the writing pressure detected by the writing pressure sensor 6d is equal to or greater than a predetermined threshold, the control circuit 8 determines that the stylus pen 3 is in the touch state, and the writing pressure detected by the writing pressure sensor 6d is the predetermined threshold. If it is less, it may be determined that the stylus pen 3 is in the hover state.
  • the touch state and the hover state are identified based on whether or not the stylus pen 3 is actually in contact with the touch panel 2.
  • the stylus pen 3 since it is not necessary to receive a determination result as to whether it is in the touch state or the hover state from an external device, the stylus pen 3 does not include a determination unit (the external device is a determination unit)
  • the communication cost can be reduced as compared with the configuration including the above.
  • FIG. 7 is a diagram showing an outline of the operation of the stylus pen 3 provided in the touch panel system 1.
  • FIG. 7 for the sake of simplicity, only the main configuration related to the control of the drive node is extracted from the configuration of the stylus pen 3 illustrated in FIG.
  • the “drive node” is an antenna portion that is provided at the pen tip portion of the stylus pen 3 and transmits a drive signal to the touch panel 2.
  • the pen tip shaft 6 b and the cap 6 f (the pen tip) that surrounds the pen tip shaft 6 b. And a cap 6f) disposed around the shaft 6b.
  • the pen tip shaft 6b and the cap 6f are insulated from each other via the pen tip cover 6a (see FIG. 4). Further, the caps 6f are insulated from each other through the grip portion 5a and the insulator 6e.
  • the grip 5a is connected to the battery GND.
  • FIG. 7A shows an example of the operation of the stylus pen 3 at the time of touch.
  • the drive circuit 13 drives the pen tip shaft 6b with a drive signal and supplies a fixed potential (for example, a constant potential such as a battery GND) to the cap 6f via the operation changeover switches 9a and 9b. That is, at the time of touch, the drive node is limited to a narrow range including only the pen tip axis 6b (the range of the drive node is small).
  • the fixed potential of the cap 6f may be a constant potential and is not necessarily limited to the battery GND.
  • the range of the drive node is reduced, so that the position specifying accuracy of the stylus pen 3 in the touched state can be improved.
  • FIG. 7B shows an example of the operation of the stylus pen 3 during hover.
  • the drive circuit 13 drives the pen tip shaft 6b with a drive signal and drives the cap 6f with the same drive signal as described above via the operation changeover switches 9a and 9b. That is, at the time of hover, the drive node is expanded to a wide range including the pen tip shaft 6b and the cap 6f (the range of the drive node is increased).
  • the range of the drive node is increased.
  • the position specifying accuracy of the stylus pen 3 in the touch state is improved, and in the hover state It is possible to improve both the accuracy of driving signal detection.
  • the operation selector switches 9a and 9b when receiving a synchronization signal, the operation selector switches 9a and 9b are selected on the opposite side, and the drive circuit 13 is connected to the pen tip shaft 6b and the operation selector switches 9a and 9b. Is supplied with a fixed potential, and the synchronization signal received by the cap 6f is input to the sense circuit 10 via the operation change-over switches 9a and 9b.
  • the fixed potential supplied from the drive circuit 13 to the pen tip shaft 6b and the fixed potential supplied to the operation changeover switches 9a and 9b may have the same level or different levels.
  • the drive node is configured to include the pen tip shaft 6b and the cap 6f, and the range of the drive node is changed in two steps, large and small, using the pen tip shaft 6b and the cap 6f.
  • Applicable forms are not limited to such forms.
  • the cap 6f is divided into a plurality of areas (the divided areas are insulated from each other), and the range of the drive node is set in multiple stages (for example, 3 stages) using the pen tip shaft 6b and each of the divided areas. It may be changed in stages).
  • FIG. 8 is a diagram showing a schematic configuration of the touch panel controller 204 provided in the touch panel system 1 of the present embodiment. As illustrated in FIG. 8, the touch panel controller 204 includes a multiplexer 23.
  • Drive lines D 0 to D n are connected to the drive line drive circuit 15.
  • sense lines S 0 to S m are connected to the sense amplifier 16.
  • the drive line drive circuit 15 outputs signals to the drive lines D 0 to D n via the multiplexer 23 in order to drive the horizontal signal lines D L0 to D Ln or the vertical signal lines S L0 to S Lm of the touch panel 2. To do.
  • the sense amplifier 16 acquires capacitance data from the sense lines S 0 to S m via the multiplexer 23.
  • the multiplexer 23 is a connection switching circuit that switches connection between a plurality of inputs and a plurality of outputs.
  • FIG. 9 is a circuit diagram showing a configuration of the multiplexer 23.
  • the multiplexer 23 is (i) a first connection state in which the horizontal signal lines D L0 to D Ln are connected to the drive lines D 0 to D n and the vertical signal lines S L0 to S Lm are connected to the sense lines S 0 to S m. And (ii) a second connection state in which the horizontal signal lines D L0 to D Ln are connected to the sense lines S 0 to S m and the vertical signal lines S L0 to S Lm are connected to the drive lines D 0 to D n. Switch (repeated) at regular intervals. For example, the odd record may be in the first connection state, and the even record may be in the second connection state.
  • the multiplexer 23 is connected to the timing generator 17. The operation of switching between the first connection state and the second connection state in the multiplexer 23 is controlled by a control signal supplied from the timing generator 17.
  • the state where the touch panel 2 is driven in the first connection state is referred to as a first drive state
  • the state where the touch panel 2 is driven in the second connection state is referred to as a second drive state.
  • the control unit 18 In the touch panel controller 204, the control unit 18 generates driving information indicating whether the touch panel 2 is driven in the first driving state or the second driving state as a data transmission signal and outputs the driving information to the drive line driving circuit 15.
  • the drive line driving circuit 15 outputs a data transmission signal to the drive lines D 0 to D n .
  • the touch panel controller may be an arbitrary one used for driving the stylus pen 3 as the data transmission information. You may send information.
  • the register address and the register write value are supplied from the touch panel controller 4 to the stylus pen 3 or other external device. May be sent.
  • FIG. 10 is a functional block diagram illustrating a configuration of a mobile phone 60 (electronic device) as an example of an electronic device including the touch panel system 1 according to the first embodiment.
  • a mobile phone 60 electronic device
  • the touchscreen system of Embodiment 2 may be provided in the mobile telephone 60.
  • the cellular phone 60 includes a touch panel system 1, a display panel 61, operation keys 62, a speaker 63, a microphone 64, a camera 65, a CPU (Central Processing Unit) 66, a ROM (Read Only Memory) 67, a RAM (Random Access Memory) 68, And a display control circuit 69. Each component of the mobile phone 60 is connected to each other by a data bus.
  • a touch panel system 1 a display panel 61, operation keys 62, a speaker 63, a microphone 64, a camera 65, a CPU (Central Processing Unit) 66, a ROM (Read Only Memory) 67, a RAM (Random Access Memory) 68, And a display control circuit 69.
  • Each component of the mobile phone 60 is connected to each other by a data bus.
  • the touch panel system 1 includes the touch panel 2, the stylus pen 3, and the touch panel controller 4.
  • the display panel 61 displays an image stored in the ROM 67 or the RAM 68.
  • the operation of the display panel 61 is controlled by the display control circuit 69.
  • the display panel 61 may be overlaid on the touch panel 2 or may incorporate the touch panel 2.
  • the touch recognition signal generated by the touch recognition unit and indicating the touch position on the touch panel 2 can have the same role as the signal indicating that the operation key 62 has been operated.
  • the operation key 62 accepts an input operation by the user of the mobile phone 60.
  • the speaker 63 outputs sound based on, for example, music data stored in the ROM 67 or the RAM 68.
  • the microphone 64 receives a voice input from the user.
  • the cellular phone 60 digitizes the input voice (analog data). Then, the cellular phone 60 transmits the digitized voice to a communication partner (for example, another cellular phone).
  • the camera 65 shoots a subject and generates image data in response to an input operation to the operation key 62 by the user.
  • the image data is stored in the ROM 67, the RAM 68, or an external memory (for example, a memory card).
  • the CPU 66 comprehensively controls the operations of the touch panel system 1 and the mobile phone 60.
  • the CPU 66 executes various programs stored in the ROM 67, for example.
  • the ROM 67 stores data in a nonvolatile manner.
  • the ROM 67 is a ROM capable of writing and erasing, such as an EPROM (Erasable Programmable ROM) or a flash memory.
  • EPROM Erasable Programmable ROM
  • the mobile phone 60 may be configured to include an interface for connecting to another electronic device by wire.
  • the RAM 68 stores the data generated by the execution of the program by the CPU 66 or the data input through the operation keys 62 in a volatile manner.
  • the mobile phone 60 provided with the touch panel system 1 also has the same effect as the touch panel system 1 of the first embodiment.
  • the mobile phone 60 as an example of an electronic device including the touch panel system 1 is a camera-equipped mobile phone or a smartphone, but the electronic device including the touch panel system 1 is not limited thereto.
  • a mobile terminal device such as a tablet
  • an information processing device such as a PC monitor, signage, an electronic blackboard, and an information display are also included in the electronic device including the touch panel system 1.
  • the touch pen according to the first aspect of the present invention is a touch pen (stylus pen 3) capable of transmitting signals, and is provided at a pen tip portion of the touch pen, and a drive node (pen tip shaft 6b) that transmits a drive signal to the touch panel.
  • Cap 6f and a drive node control unit (drive for controlling the size of the drive node according to whether the touch pen is in a touch state or a hover state with respect to the touch panel (2). Circuit 13).
  • the drive node control unit controls the size of the drive node range according to whether the touch pen is in the touch state or the hover state with respect to the touch panel.
  • the “drive node” refers to a device (antenna portion) that is provided at the pen tip portion of the touch pen and transmits a drive signal for driving the touch pen.
  • a touch pen is the determination unit (control circuit 8, synchronization signal detection circuit) that determines whether the touch pen is in a touch state or a hover state with respect to the touch panel in the aspect 1. 11, the information signal receiving circuit 29), and the drive node control unit may control the size of the range of the drive node according to the determination result by the determination unit.
  • the touch pen includes the determination unit that determines whether the touch pen is in the touch state or the hover state.
  • the drive node control unit reduces the range of the drive node when the determination unit determines that the touch pen is in the touch state.
  • it is preferable to increase the range of the drive node. when it is determined that the touch pen is in the touch state, the range of the drive node is reduced, so that the accuracy of position determination of the touch pen in the touch state can be improved. Further, when it is determined that the touch pen is in the hover state, the range of the drive node is increased, so that it is possible to improve the accuracy of the drive signal detection in the hover state.
  • the touch pen according to aspect 4 of the present invention is the touch pen according to any one of the aspects 1 to 3, wherein the pen tip portion of the touch pen is disposed so as to surround the pen tip shaft (6b) and the periphery of the pen tip shaft.
  • a cap (6f) wherein the drive node includes the pen tip shaft and the cap, the pen tip shaft and the cap are insulated from each other, and the drive node control unit includes the pen tip shaft and the cap
  • the accuracy of the drive signal detection can be improved by setting the range of the drive node as the pen tip axis and the cap in the hover state. Further, by limiting the range of the drive node to the pen tip axis in the touch state, it is possible to improve the position specifying accuracy of the touch pen.
  • a touch panel system includes a touch pen according to any one of the above aspects 1 to 4, a plurality of first signal lines, a plurality of second signal lines, the first signal lines, and the second second lines.
  • a touch panel having each capacitance formed at the intersection of the signal lines and a control for driving each first signal line and outputting a charge signal based on each capacitance from each second signal line, or
  • a touch panel controller that drives each of the second signal lines and outputs a charge signal based on the capacitance from each of the first signal lines, and repeatedly performs at least one of the controls. It is preferable to include. According to the above configuration, it is possible to realize a touch panel system that can achieve both improvement in the position specifying accuracy of the touch pen in the touch state and improvement in the accuracy of drive signal detection in the hover state.
  • the electronic device preferably includes the touch panel system according to aspect 5 described above. According to the above configuration, it is possible to realize an electronic apparatus that can achieve both improvement in the position specifying accuracy of the touch pen in the touch state and improvement in the accuracy of drive signal detection in the hover state.
  • the touch pen according to one embodiment of the present invention is a touch pen used in combination with a touch panel controller that drives a touch panel having a plurality of first signal lines and a plurality of second signal lines intersecting the plurality of first signal lines.
  • a drive circuit that generates a touch pen drive signal in accordance with the drive of the touch panel controller, a drive node that outputs the drive signal generated by the drive circuit from the electronic pen to the touch panel, and the touch pen and the touch panel
  • a control circuit for determining the touch / hover relationship, and the drive node may control the size of the range of the drive node by a touch / hover signal input to the control circuit.
  • the present invention is suitably used for a touch pen capable of transmitting a signal, a touch panel used in combination with the touch pen, a touch panel system including a touch panel controller for controlling the touch panel, and an electronic device including the touch panel system. be able to.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

La présente invention améliore à la fois la précision de spécification de la position d'un stylet lors du contact du stylet avec un écran tactile et la précision de détection d'un signal de commande lors de la sustentation du stylet au-dessus de l'écran tactile. Un stylet (3) est équipé: d'un nœud de commande pour la transmission d'un signal de commande vers un écran tactile, le nœud de commande étant prévu dans la partie de pointe du stylet (3); et un circuit de commande (13) pour la commande de l'amplitude de la plage du nœud de commande en fonction du contact du stylet (3) avec l'écran tactile ou de sa sustentation au-dessus de l'écran tactile.
PCT/JP2016/061928 2015-05-15 2016-04-13 Stylet, système d'écran tactile, et appareil électronique WO2016185838A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-100397 2015-05-15
JP2015100397 2015-05-15

Publications (1)

Publication Number Publication Date
WO2016185838A1 true WO2016185838A1 (fr) 2016-11-24

Family

ID=57319811

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/061928 WO2016185838A1 (fr) 2015-05-15 2016-04-13 Stylet, système d'écran tactile, et appareil électronique

Country Status (1)

Country Link
WO (1) WO2016185838A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019046458A (ja) * 2017-09-04 2019-03-22 株式会社ワコム 空間位置指示システム
CN110462568A (zh) * 2017-12-14 2019-11-15 深圳市汇顶科技股份有限公司 触控笔的坐标确定方法、装置、电子设备及存储介质
WO2024087816A1 (fr) * 2022-10-29 2024-05-02 荣耀终端有限公司 Procédé et dispositif de prévention de toucher accidentel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140002422A1 (en) * 2011-03-17 2014-01-02 N-Trig Ltd. Interacting tips for a digitizer stylus
US8878823B1 (en) * 2011-07-27 2014-11-04 Cypress Semiconductor Corporation Dynamic shield electrode of a stylus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140002422A1 (en) * 2011-03-17 2014-01-02 N-Trig Ltd. Interacting tips for a digitizer stylus
US8878823B1 (en) * 2011-07-27 2014-11-04 Cypress Semiconductor Corporation Dynamic shield electrode of a stylus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019046458A (ja) * 2017-09-04 2019-03-22 株式会社ワコム 空間位置指示システム
US20200201542A1 (en) * 2017-09-04 2020-06-25 Wacom Co., Ltd. Spatial position indication system
US11630570B2 (en) 2017-09-04 2023-04-18 Wacom Co., Ltd. Spatial position indication system
JP7441600B2 (ja) 2017-09-04 2024-03-01 株式会社ワコム 空間位置指示システム
CN110462568A (zh) * 2017-12-14 2019-11-15 深圳市汇顶科技股份有限公司 触控笔的坐标确定方法、装置、电子设备及存储介质
WO2024087816A1 (fr) * 2022-10-29 2024-05-02 荣耀终端有限公司 Procédé et dispositif de prévention de toucher accidentel

Similar Documents

Publication Publication Date Title
JP6058866B2 (ja) タッチパネルコントローラ、スタイラスペン、タッチパネルシステム、および電子機器
JP5872738B2 (ja) タッチパネルシステム及び電子機器
JP6058867B2 (ja) タッチパネルシステム及び電子機器
JP6072989B2 (ja) タッチパネルコントローラ、タッチパネルシステム、およびスタイラスペン
JP5905645B2 (ja) タッチパネルシステム及び電子機器
JP5886478B2 (ja) タッチパネルシステム
KR102627342B1 (ko) 터치 센싱 시스템과 그 제어 방법
KR102468731B1 (ko) 터치 구동회로, 터치 표시장치 및 터치 회로의 펜 데이터 인식 방법
JP2012022543A (ja) タッチパネルシステム
CN104951157A (zh) 电容式触控装置以及检测主动笔与物体的方法
WO2014181680A1 (fr) Système d'écran tactile, stylet, et dispositif électronique
JP5872740B2 (ja) タッチパネルシステム及び電子機器
US9710075B2 (en) Touch panel system and electronic device
WO2016185838A1 (fr) Stylet, système d'écran tactile, et appareil électronique
JP2016218857A (ja) タッチペン、タッチパネルシステム、および電子機器
US11422663B1 (en) Stylus sensing on touchscreens
CN106873779B (zh) 一种手势识别装置及手势识别方法
KR20160137913A (ko) 터치스크린 패널 동작을 이용한 압력 센싱 장치
WO2016002372A1 (fr) Unité de commande de panneau tactile, système de panneau tactile, et dispositif électronique
JP2016218858A (ja) タッチペン、タッチパネルシステムおよび電子機器
JP7279444B2 (ja) 指示装置、情報処理システム、情報処理装置、及びプログラム
JP2014002547A (ja) 携帯情報端末及びその制御方法
KR20190031629A (ko) 전자 펜과 연동하는 터치 스크린

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16796232

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16796232

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP