WO2013167091A2 - Dispositif de rétroaction tactile et terminal - Google Patents

Dispositif de rétroaction tactile et terminal Download PDF

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Publication number
WO2013167091A2
WO2013167091A2 PCT/CN2013/080430 CN2013080430W WO2013167091A2 WO 2013167091 A2 WO2013167091 A2 WO 2013167091A2 CN 2013080430 W CN2013080430 W CN 2013080430W WO 2013167091 A2 WO2013167091 A2 WO 2013167091A2
Authority
WO
WIPO (PCT)
Prior art keywords
controlled
contact electrode
contact
signal
tactile feedback
Prior art date
Application number
PCT/CN2013/080430
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English (en)
Chinese (zh)
Other versions
WO2013167091A3 (fr
Inventor
韩正渭
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2013167091A2 publication Critical patent/WO2013167091A2/fr
Publication of WO2013167091A3 publication Critical patent/WO2013167091A3/fr

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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
    • G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
    • 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers

Definitions

  • Embodiments of the present invention relate to the field of electronic technologies, and in particular, to a haptic feedback device and a terminal. Background technique
  • touch screens have been more and more widely applied to these electronic device terminals. Even in some household appliances such as refrigerators, washing machines, microwave ovens, etc., it is also seen that touch screens have become more and more widely used.
  • a common way to solve the above problems is to use a flexible approach.
  • Common means include: A, using sound and light feedback, when a valid button action is detected, a changed button image is displayed on the corresponding button of the screen, and a specific sound signal can be sent to inform the user that the device has accepted the present The second button; B, using vibration feedback, when detecting a valid button action, by driving the vibration device inside the device, the user can feel the vibration of the device, thereby obtaining the information that the button has been accepted by the device.
  • the embodiment of the present invention provides a haptic feedback device, which is applied to a terminal provided with a touch screen, and the haptic feedback device includes:
  • a haptic feedback layer on one side of the touch screen comprising an insulating material and a controlled circuit embedded in the insulating material; wherein the controlled circuit comprises at least two contact electrodes that can be touched by a human body;
  • control module configured to control the controlled circuit such that an electrical stimulation signal is generated between the first contact electrode and the second contact electrode of the at least two contact electrodes.
  • control module includes:
  • a determining unit configured to determine the first contact electrode and the second contact electrode; wherein the first contact electrode and the second contact electrode correspond to a first touch area;
  • a first control unit configured to control the controlled circuit such that the electrical stimulation signal is generated between the first contact electrode and the second contact electrode.
  • the controlled circuit is connected with a controlled switch
  • the control module comprises: a second control unit configured to control the controlled circuit by controlling the controlled switch, so that the first contact electrode and The electrical stimulation signal is generated between the second contact electrodes.
  • the at least two contact electrodes are M contact electrodes
  • the controlled circuit includes
  • the M contact electrodes are distributed on the N controlled branches; wherein the first contact electrode and the second contact electrode are respectively in a first controlled branch of the N controlled branches and Second controlled branch;
  • the controlled switch includes N controlled switches connected to the N controlled branches;
  • the first controlled switch and the second controlled switch of the controlled switch are respectively connected to the first controlled branch and the second controlled branch;
  • the second control unit includes:
  • control subunit configured to generate the electrical stimulation signal between the first contact electrode and the second contact electrode by closing the first controlled switch and the second controlled switch.
  • the electrical stimulation signal is a voltage signal or a current signal.
  • the electrical stimulation signal is a direct current signal or an alternating current signal.
  • the at least two contact electrodes are separated by the insulating material.
  • control module includes:
  • a third control unit configured to apply a voltage signal to the controlled circuit such that voltage signals at the first contact electrode and the second contact electrode have different amplitudes
  • a fourth control unit is configured to apply a current signal to the controlled circuit such that the first contact electrode and the second contact electrode are capable of forming a current loop.
  • the embodiment of the invention further provides a terminal, where the terminal includes:
  • a haptic feedback layer on one side of the touch screen comprising an insulating material and a controlled circuit embedded in the insulating material; wherein the controlled circuit comprises at least two contact electrodes that can be touched by a human body;
  • the first processor is configured to determine a first touch area according to the touch detection signal collected by the touch screen;
  • a second processor configured to control the controlled circuit such that an electrical stimulation signal is generated between the first contact electrode and the second contact electrode of the at least two contact electrodes; wherein the first contact electrode and the first The two contact electrodes correspond to the first touch area.
  • the controlled circuit is connected with a controlled switch
  • the second processor is configured to control the controlled circuit by controlling the controlled switch, so that the first contact electrode and the The electrical stimulation signal is generated between the second contact electrodes.
  • the at least two contact electrodes are M contact electrodes
  • the controlled circuit includes N controlled branches, wherein M and N are both natural numbers, M ⁇ N>1;
  • the M contact electrodes are distributed on the N controlled branches; wherein the first contact electrode and the second contact electrode are respectively in a first controlled branch of the N controlled branches and Second controlled branch;
  • the controlled switch includes N controlled switches connected to the N controlled branches, wherein the first controlled switch and the second controlled switch of the controlled switch are respectively associated with the first a controlled branch and the second controlled branch are connected;
  • the second processor is configured to cause the electrical stimulation signal to be generated between the first contact electrode and the second contact electrode by closing the first controlled switch and the second controlled switch.
  • the electrical stimulation signal is a voltage signal or a current signal.
  • the electrical stimulation signal is a direct current signal or an alternating current signal.
  • the second processor is configured to apply a voltage signal to the controlled circuit such that voltage signals at the first contact electrode and the second contact electrode have different amplitudes; or
  • the controlled circuit applies a current signal such that the first contact electrode and the second contact electrode can form a current loop.
  • the embodiment of the present invention has at least the following technical effects: by controlling a controlled circuit included in the haptic feedback layer on one side of the touch screen, so that the first contact electrode and the second contact electrode can be touched by the human body An electrical stimulation signal is generated between them to provide an electrical tactile feedback mode.
  • Figure 1 is a schematic cross-sectional view of a tactile feedback screen
  • FIG. 2 is a schematic diagram of the principle of a tactile feedback screen. detailed description
  • a first embodiment of the present invention provides a haptic feedback device, which is applied to a terminal provided with a touch screen, and the device includes:
  • a haptic feedback layer on one side of the touch screen comprising an insulating material and a controlled circuit embedded in the insulating material; wherein the controlled circuit comprises at least two contact electrodes that can be touched by a human body;
  • control module configured to control the controlled circuit such that an electrical stimulation signal is generated between the first contact electrode and the second contact electrode of the at least two contact electrodes.
  • an electrical stimulation signal is generated between the first contact electrode and the second contact electrode touched by the human body, thereby providing an electrical tactile feedback mode.
  • the touch screen can be a flat screen or a curved screen.
  • the touch screen can be a capacitive screen, a resistive screen, an infrared screen, or the like.
  • the control module can be implemented by a driving circuit, and the driving circuit can control the controlled circuit after receiving the trigger signal to generate an electrical stimulation signal between the first contact electrode and the second contact electrode.
  • the trigger signal may be generated by a user touch operation detecting device in the terminal when detecting a user touch operation.
  • the user touch operation detecting means can determine the touch operation of the user based on the touch detection signal from the touch screen.
  • the electrical stimulation signal can be a preset signal.
  • the electrical stimulation signal may be a voltage signal; or, in consideration of the manner in which the voltage signal is generated, the adjustment of the electrical tactile feedback effect may be disadvantageous.
  • the electrical stimulation signal may also be a current signal, and the amplitude of the current signal. It can be adjusted by the user, so that similar electrical tactile feedback effects can be generated for the fingers of different users, or the user can adjust the amplitude of the current signal. The degree to which the electrical tactile feedback effect that satisfies the user's needs can be generated.
  • the electrical stimulation signal may be a direct current signal; or, considering that the human body is more sensitive to alternating current, the electrical stimulation signal may also be an alternating current signal, thereby providing a better electrical tactile feedback effect for the user.
  • the amplitude of the electrical stimulation signal should be within the safe range that the human body can withstand, usually the voltage should not be higher than 36V, and the current should not be greater than 10mA, such as 24V/50HZ AC. Voltage or 2mA/50Hz AC current; and / or,
  • the voltage can be higher than 6V and the current can be greater than 0.1mA.
  • control module may include:
  • a determining unit configured to determine the first contact electrode and the second contact electrode; wherein the first contact electrode and the second contact electrode correspond to a first touch area;
  • a first control unit configured to control the controlled circuit such that the electrical stimulation signal is generated between the first contact electrode and the second contact electrode.
  • the first touch area may be determined by a touch area detection module connected to the touch screen according to a signal from the touch detection electrode of the touch screen; or, the haptic feedback layer may be disposed with the at least two
  • the touch electrode is separated by the insulating material and connected to the determining unit, and the first touch area may also be determined by the determining unit according to a signal from the touch detecting electrode of the haptic feedback layer.
  • different combinations of the contact electrodes of the at least two contact electrodes may match different touch regions, for example, discharges corresponding to specific combinations in the different combinations There is an overlap or a inclusion or inclusion relationship between the region and the specific touch region of the different touch regions, or the ratio of the overlapping portion of the discharge region to the specific touch region occupies the discharge region is greater than a predetermined percentage .
  • the number of contact electrodes in each of the combinations is at least 2 and less than or equal to the number of the at least two contact electrodes.
  • control module may generate an electrical stimulation signal between the first contact electrode and the second contact electrode by applying a voltage signal or a current signal to the controlled circuit.
  • the controlled circuit may be connected to a controlled switch, and the control module may include: a second control unit configured to control the controlled circuit by controlling the controlled switch such that the first contact electrode and the The electrical stimulation signal is generated between the second contact electrodes.
  • the control module may include: a second control unit configured to control the controlled circuit by controlling the controlled switch such that the first contact electrode and the The electrical stimulation signal is generated between the second contact electrodes.
  • the at least two contact electrodes are M contact electrodes, and the controlled circuit includes N controlled branches, wherein M and N are both natural numbers, M ⁇ N>1;
  • the M contact electrodes are distributed on the N controlled branches; wherein the first contact electrode and the second contact electrode are respectively in a first controlled branch of the N controlled branches and Second controlled branch;
  • the controlled switch includes N controlled switches connected to the N controlled branches, wherein the first controlled switch and the second controlled switch of the controlled switch are respectively associated with the first a controlled branch and the second controlled branch are connected;
  • the second control unit includes:
  • control subunit configured to generate the electrical stimulation signal between the first contact electrode and the second contact electrode by closing the first controlled switch and the second controlled switch.
  • other controlled switches other than the first controlled switch and the second controlled switch of the controlled switch may be in an open state, so that only the first contact electrode and the first An electrical stimulation signal is generated between the two contact electrodes.
  • a portion of the controlled switch to close and another portion of the controlled switch to open a portion of the at least two contact electrodes contact the electrode to produce the electrical stimulation signal.
  • control module may include:
  • a third control unit configured to apply a voltage signal to the controlled circuit such that voltage signals at the first contact electrode and the second contact electrode have different amplitudes
  • a fourth control unit is configured to apply a current signal to the controlled circuit such that the first contact electrode and the second contact electrode form a current loop.
  • the user's finger will generate a specific small current due to the difference in the amplitude of the signal of the contact electrode that is touched, so that the user can safely and clearly feel the electric tactile feedback.
  • the position of the at least two contact electrodes and the touch detection electrodes is such that the touch detection function and the haptic feedback function are not affected.
  • the projection of the at least one contact electrode on the contact surface does not overlap the projection of the touch detection electrode at the contact surface.
  • the electrical tactile feedback mode of the embodiment of the present invention is compared with the deformable screen and the force feedback technology, and the main advantages are as follows:
  • a second embodiment of the present invention provides a terminal, where the terminal includes:
  • a haptic feedback layer on one side of the touch screen comprising an insulating material and a controlled circuit embedded in the insulating material; wherein the controlled circuit comprises at least two contact electrodes that can be touched by a human body;
  • the first processor is configured to determine a first touch area according to the touch detection signal collected by the touch screen;
  • a second processor configured to control the controlled circuit such that an electrical stimulation signal is generated between the first contact electrode and the second contact electrode of the at least two contact electrodes; wherein the first contact electrode and the first The two contact electrodes correspond to the first touch area.
  • the first contact electrode and the second contact electrode touched by the human body generate an electrical stimulation signal, thereby providing an electrical tactile feedback mode.
  • the first processor may be a central processing unit (CPU).
  • CPU central processing unit
  • the second processor may be a CPU.
  • the first processor and the second processor may be the same or different.
  • different combinations of the contact electrodes of the at least two contact electrodes may match different touch regions, for example, discharges corresponding to specific combinations in the different combinations There is an overlap or a inclusion or inclusion relationship between the region and the specific touch region of the different touch regions, or the ratio of the overlapping portion of the discharge region to the specific touch region occupies the discharge region is greater than a predetermined percentage .
  • the number of contact electrodes in each combination of the different combinations is at least 2 and less than or equal to the number of the at least two contact electrodes.
  • the touch screen can be a flat screen or a curved screen.
  • the electrical stimulation signal can be a preset signal.
  • the electrical stimulation signal can be a voltage signal or a current signal.
  • the electrical stimulation signal can be a direct current signal or an alternating current signal.
  • the description of the electrical stimulation signal is substantially the same as that of the first embodiment of the present invention, and details are not described herein again.
  • the controlled circuit is coupled to a controlled switch, and the second processor is specifically configurable to control the controlled circuit by controlling the controlled switch such that the first contact electrode and the second The electrical stimulation signal is generated between the contact electrodes.
  • the at least two contact electrodes are M contact electrodes, and the controlled circuit includes N controlled branches, wherein M and N are both natural numbers, M ⁇ N>1;
  • the M contact electrodes are distributed on the N controlled branches; wherein the first contact electrode and the second contact electrode are respectively in a first controlled branch of the N controlled branches and Second controlled branch;
  • the controlled switch includes N controlled switches connected to the N controlled branches, wherein the first controlled switch and the second controlled switch of the controlled switch are respectively associated with the first a controlled branch and the second controlled branch are connected;
  • the second processor is specifically configured to: generate the electrical stimulation signal between the first contact electrode and the second contact electrode by closing the first controlled switch and the second controlled switch .
  • other controlled switches other than the first controlled switch and the second controlled switch of the controlled switch may be in an open state, so that only the first contact electrode and the first An electrical stimulation signal is generated between the two contact electrodes.
  • a portion of the controlled switch to close and another portion of the controlled switch to open a portion of the at least two contact electrodes contact the electrodes to generate the electrical stimulation signal.
  • the at least two contact electrodes may be separated by the insulating material.
  • the second processor may be specifically configured to:
  • a current signal is applied to the controlled circuit such that the first contact electrode and the second contact electrode form a current loop.
  • the user's finger will generate a specific small current due to the difference in the amplitude of the signal of the contact electrode that is touched, so that the user can safely and clearly feel, and realize the electric tactile feedback.
  • the positional setting of the at least two contact electrodes and the touch detection electrodes should be such that the touch detection function and the haptic feedback function are not affected.
  • the projection of the at least one contact electrode at the contact surface does not overlap with the projection of the touch detection electrode at the contact surface.
  • the touch screen and the haptic feedback layer constitute a tactile feedback screen.
  • the touch screen is a conventional capacitive multi-touch screen
  • the tactile feedback layer covers the human body contact surface of the capacitive multi-touch screen, wherein the insulating material and the electrodes are transparent.
  • the haptic feedback screen is composed of three parts from bottom to top, namely, an LCD display module 11, a capacitive touch detection layer 12, and a haptic feedback layer 13.
  • the structure and function of the first two parts are the same as those of the traditional capacitive multi-touch screen. The difference lies in the third part.
  • the third part is the tactile feedback layer 13.
  • a plurality of haptic feedback electrodes of the haptic feedback layer 13 are exposed to the outside of the screen of the haptic feedback screen, and the non-touchable portions of the haptic feedback electrodes are isolated by an insulating material.
  • These haptic feedback electrodes are arranged in the gap between adjacent capacitive touch detection electrodes, and the two electrodes do not overlap each other, ensuring that the function of the capacitive touch detection layer is not affected.
  • the terminal contains a dedicated driving circuit to apply a voltage or current that the human body can feel between the contacts.
  • the drive circuit can selectively apply a voltage or current to a specific position of the screen by controlling switches connected to the horizontal and vertical electrodes of the matrix without applying a ⁇ voltage and a voltage to other positions of the screen.
  • the drive circuit immediately applies a voltage or current to the desired screen position, and discharges through the contact portion of the finger.
  • alternating current can be used instead of direct current to increase the effect of tactile feedback.
  • current drive can be used instead of voltage drive, and the magnitude of the current can be adjusted by the user.
  • FIG. 2 is a schematic diagram of the principle of the haptic feedback screen.
  • the tactile feedback screen consists of 24 electrodes, which are arranged vertically and horizontally. They are divided into two categories: one is marked with a dotted line, and the vertical line is connected to the X-axis edge.
  • the X axis has three switches SX1 ⁇ SX3, which controls whether the three columns of X1 ⁇ X3 on the X axis are connected to the power supply; the Y axis also has three switches SY1 ⁇ SY3, and controls the three lines Y1 ⁇ Y3 on the Y axis. Whether the electrode is powered on. A total of nine intersections are formed in the three rows and three columns of electrodes. These nine intersections define nine discharge regions, as shown by the shaded regions in the figure, which are the discharge regions i or determined by the electrodes of columns ⁇ 3 and ⁇ 2.
  • the haptic feedback drive circuit When the touch detection layer detects an effective touch action, the haptic feedback drive circuit is notified to apply a voltage to the corresponding screen area.
  • the haptic feedback drive circuit when the finger touches the area, it is detected by the touch detection layer, and then the haptic feedback drive circuit inside the terminal turns on the switches SX3 and SY2 while leaving the other switches open.
  • the four electrodes X3-2, X3-3, Y2-3, and Y2-4 around the shadow due to contact with the finger, there will be current passing through the finger and being felt by the human body.
  • other electrodes such as X3-1 and Y2-2, although a voltage is applied, since the distance is long, even if there is a finger contact, since the resistance is large, almost no current flows.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

L'invention concerne un dispositif de rétroaction tactile et un terminal. Ledit dispositif de rétroaction tactile comprend : une couche de rétroaction tactile située d'un côté de l'écran tactile et comportant un matériau isolant et un circuit commandé qui est inséré dans le matériau isolant et qui comprend au moins deux électrodes de contact pouvant être touchées par un corps humain, ainsi qu'un module de commande qui est conçu pour commander le circuit commandé de manière à produire un signal de stimulation électrique entre la première électrode de contact et la seconde électrode de contact parmi lesdites au moins deux électrodes de contact. Une fonction de rétroaction électro-tactile est assurée, ce qui permet à un utilisateur de sentir de manière sûre une rétroaction électro-tactile.
PCT/CN2013/080430 2012-12-12 2013-07-30 Dispositif de rétroaction tactile et terminal WO2013167091A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210534946.7 2012-12-12
CN201210534946.7A CN103034331B (zh) 2012-12-12 2012-12-12 一种触觉反馈装置及终端

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WO2013167091A2 true WO2013167091A2 (fr) 2013-11-14
WO2013167091A3 WO2013167091A3 (fr) 2014-01-03

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CN103034331B (zh) * 2012-12-12 2016-06-29 中兴通讯股份有限公司 一种触觉反馈装置及终端
CN104111724A (zh) * 2013-04-19 2014-10-22 联想(北京)有限公司 一种信息处理的方法及电子设备
US10120447B2 (en) * 2013-06-24 2018-11-06 Northwestern University Haptic display with simultaneous sensing and actuation
CN107179846B (zh) * 2016-03-11 2020-06-26 中国移动通信集团四川有限公司 一种触觉反馈方法及终端
CN107783647B (zh) * 2016-08-31 2021-07-23 大陆投资(中国)有限公司 柔性屏输入设备及信息娱乐系统
CN114816198A (zh) * 2016-10-21 2022-07-29 天马微电子股份有限公司 触觉提示装置
CN108874243B (zh) 2017-05-11 2021-11-12 京东方科技集团股份有限公司 触控面板、电子装置及其驱动方法
CN107608505A (zh) * 2017-08-30 2018-01-19 广东深越光电技术有限公司 一种能增加触摸反馈功能的触摸装置
CN108461015B (zh) * 2018-06-29 2019-11-22 华中科技大学 一种用于盲文阅读的三维电触觉表皮电子系统

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CN103034331A (zh) * 2012-12-12 2013-04-10 中兴通讯股份有限公司 一种触觉反馈装置及终端

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WO2013167091A3 (fr) 2014-01-03
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