KR20170034993A - Haptic mousepad using beat phenoenon - Google Patents

Haptic mousepad using beat phenoenon Download PDF

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Publication number
KR20170034993A
KR20170034993A KR1020150133292A KR20150133292A KR20170034993A KR 20170034993 A KR20170034993 A KR 20170034993A KR 1020150133292 A KR1020150133292 A KR 1020150133292A KR 20150133292 A KR20150133292 A KR 20150133292A KR 20170034993 A KR20170034993 A KR 20170034993A
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South Korea
Prior art keywords
electrode
frequency
voltage
electric field
dielectric layer
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KR1020150133292A
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Korean (ko)
Inventor
양태헌
박연규
우삼용
김민석
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한국표준과학연구원
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Priority to KR1020150133292A priority Critical patent/KR20170034993A/en
Priority to PCT/KR2015/011401 priority patent/WO2017051973A1/en
Publication of KR20170034993A publication Critical patent/KR20170034993A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/016—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
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/039—Accessories therefor, e.g. mouse pads
    • G06F3/0395—Mouse pads

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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)
  • Position Input By Displaying (AREA)

Abstract

The present invention relates to a vibrating mouse pad using a beat electric field and a tactile presentation method using the vibrating mouse pad. More particularly, the present invention relates to a vibrating mouse, comprising: a substrate; A first electrode that is attached to one surface of the substrate and receives a first voltage having a first frequency and a second electrode that receives a second voltage having a second frequency different from the first frequency; An electrode unit disposed between the first electrode and the second electrode to generate a beating electric field; And a dielectric layer which is connected between the first electrode and the second electrode and is vibrated by a beat electric field generated in the electrode portion, wherein vibration is transmitted by a mouse placed on the dielectric layer. To a vibrating mouse pad used.

Description

TECHNICAL FIELD [0001] The present invention relates to a vibration mouse pad using a beat electric field and a vibration mouse pad,

The present invention relates to a vibrating mouse pad using a beat electric field and a tactile presentation method using the vibrating mouse pad.

In general, touch refers to a tactile sensation that can be felt by a person's finger or stylus pen when touching an object, including tactile feedback that the skin touches the object surface and muscular feedback that is felt when movement of the joints and muscles is disturbed Concept.

As human sensory receptors, receptors for mechanical stimulation include Paciniancorpuscle, which senses high-frequency vibrations, Meissner's corpuscle, which senses low-frequency vibrations, Merkel's disc, which senses local pressure, ), And Ruffini's ending, which detects stretching of the skin.

Various actuators such as piezo actuators, solenoid actuators, DC / AC motors, server motors, ultrasonic actuators, shape memory alloy ceramic actuators, and electroactive polymer actuators are examples of various tactile presentation devices for stimulating such sensory receptors.

A representative example of the tactile display apparatus is a device for stimulating a pachinian / meister body that detects vibration of a high frequency / low frequency by generating vibration by a vibration motor in accordance with an input of a touch screen in a mobile device.

Meanwhile, the vibration motor (vibration generating module) is a device that is applied to a portable device and transmits a predetermined sensation. In the related art, a vibration sensation is outputted in response to a touch of a touch panel by a user's finger.

Such a conventional vibration generating module has a problem that a relatively high operating voltage must be used because a vibration having a strength that a user can perceive with a finger must be generated.

In addition, the portable device in which the vibration generating module is frequently used has a tendency to be reduced in size for the sake of convenience, and accordingly, there is a limit in the amount of power that can be supplied.

However, since the conventional vibration generating module has a large power consumption, it is inconvenient to use the vibration generating module for such a portable device.

Furthermore, the conventional vibration generating module can output only a simple sense of vibration, and it is difficult to control the strength or the interval of vibration, and it is difficult to generate various tactile feedbacks.

In addition, the conventional vibration generating module functions as an actuator for generating tactile feedback, and can not function as a sensor for sensing a touch.

Accordingly, there is a need to develop a tactile display device capable of easily adjusting the strength or the interval of vibration while reducing power consumption by using a low operating voltage.

1 is a cross-sectional view of a conventional electrostatic force tactile display apparatus. 1, a conventional electrostatic touch tactile display device 1 includes an electrode layer 3 provided on a PCB substrate 2 and a PCB substrate 2, an electrode layer 3 to which a voltage is applied, And may include a dielectric layer 4. Therefore, when the user touches the upper surface of the dielectric layer 4, the user feels vibration due to the electrostatic force.

Fig. 2 shows a cross-sectional view of a conventional vibration transmission type electrostatic tactile force sensing device 1. Fig. This structure includes a lower plate electrode layer 6 to which a voltage is applied above the lower plate 5, a dielectric layer 4 provided on the upper portion of the lower plate electrode layer 6, an upper plate 8 disposed apart from the dielectric layer 4, A top plate electrode layer 9 provided on the bottom surface of the top plate 8 and connected to the ground and spacers 7 provided between the bottom plate 5 and the top plate 8 for separating the dielectric layer 4 from the top plate electrode layer 9 ). ≪ / RTI >

Therefore, the vibration is transmitted to the upper plate 8 side by the spacer 7 due to the electrostatic force generated in the dielectric layer 4, and the tactile sense is presented to the user who has contacted the upper plate 8. [

However, in such a conventional method, it is difficult to present various tactile angles because the frequency is large and the amplitude is small. For the low frequency stimulation, expensive parts such as an analog HV output, an analog switching device, and an HV opto- And it has a disadvantage that a complicated circuit configuration is required because it is analog.

Korean Patent No. 10-1124227 Korean Patent No. 10-1115421 Korean Patent No. 10-1022065

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a tactile display module using a beating electric field, Instead, it is possible to use a digital output, realize driving with only two PWM channels, use a FET-based digital switching device instead of an existing analog switching device (Opto-Diode) (For example, BLE cip) can be used by reducing the load of the HV AMP, and the magnitude of the vibration due to the beating electric field can be amplified to lower the driving power of the HV AMP (about 1.5 kV or less) And to provide a vibration mouse pad using a beat electric field capable of miniaturization, low power consumption, and low cost.

The vibration mouse pad according to the embodiment of the present invention can switch the bandwidth of the conventional analog switch by exceeding the threshold of about 1 kV by limiting the bandwidth of the conventional analog switch to about 200 Hz by applying the tactile presentation module using the beat electric field, The object of the present invention is to provide a vibrating mouse pad using a beating electric field which can use a digital switching device and have an advantage in tactile generation that can increase the variety of tactile combinations .

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. It can be understood.

A first object of the present invention is, in a vibrating mouse pad, comprising: a substrate; A first electrode that is attached to one surface of the substrate and receives a first voltage having a first frequency and a second electrode that receives a second voltage having a second frequency different from the first frequency; An electrode unit disposed between the first electrode and the second electrode to generate a beating electric field; And a dielectric layer which is connected between the first electrode and the second electrode and is vibrated by a beat electric field generated in the electrode portion, wherein vibration is transmitted by a mouse placed on the dielectric layer. Can be achieved as a vibrating mouse pad.

In addition, the oscillation frequency of the dielectric layer is based on the frequency of the beatfield electric field, and the oscillation amplitude of the dielectric layer is based on the amplitude of the beatfield electric field.

The first voltage and the second voltage have the same amplitude, the frequency of the beat electric field is the first frequency and the second frequency difference, and the first frequency and the second frequency difference are 1 to 100 Hz .

The apparatus may further include a first voltage application unit for applying the first voltage to the first electrode and a second voltage application unit for applying the second voltage to the second electrode.

The first electrodes are spaced apart from each other at a first extending end in a longitudinal direction parallel to one edge of the substrate and at the first extending end, and are perpendicular to the first extending ends. Wherein the second electrode is spaced apart from the second extending end in a longitudinal direction parallel to the other edge of the substrate and at the second extending end and is perpendicular to the second extending end, And a first end of the second electrode, wherein the first end of the first electrode and the first end of the second electrode are spaced apart from each other without intersecting each other.

The controller may further include a controller for controlling at least one of the first voltage application unit and the second voltage application unit to adjust a vibration frequency of the dielectric layer.

The controller controls at least one of the first voltage application unit and the second voltage application unit such that the carrier frequency, which is a smaller one of the first frequency and the second frequency, coincides with the resonance frequency of the tactile presentation module . ≪ / RTI >

In addition, the controller may change the magnitude of the beating vibration by adjusting the difference value between the carrier frequency and the resonance frequency.

The first electrode has a first end of the first electrode and a second end of the plurality of first electrodes whose longitudinal direction is perpendicular to the first end of the first electrode, The second electrode has a second end of a plurality of second electrodes whose longitudinal direction is perpendicular to the first end of the second electrode, the second end being spaced apart from each other at a first end of the second electrode, The second end of the first electrode and the second end of the second electrode may be spaced apart from each other without intersecting with each other.

A second object of the present invention is to provide a plasma display panel in which a first voltage having a first frequency is applied to a first electrode attached to one surface of a substrate and a second electrode arranged at a predetermined distance from the first electrode, Applying a second voltage having a different second frequency; Generating a beating electric field in an electrode portion composed of the first electrode and the second electrode; A dielectric layer connected between the first electrode and the second electrode is vibrated by a beat electric field generated in the electrode portion; And transmitting the vibration through a mouse placed on the upper side of the dielectric layer.

A third object of the present invention is to provide a vibrating mouse pad comprising: a lower substrate; A first electrode which is attached to one surface of the lower substrate and receives a first voltage having a first frequency and a second electrode that receives a second voltage having a second frequency different from the first frequency, An electrode unit having one electrode and the second electrode spaced apart from each other by a predetermined distance to generate a beating electric field; A first dielectric layer connected between the first electrode and the second electrode, the first dielectric layer being vibrated by an electric field generated by the electrode portion; An upper substrate spaced apart from the first dielectric layer and having an electrode layer connected to the ground; And an inner spacer provided between the lower substrate and the first dielectric layer to separate the lower substrate and the first dielectric layer from each other so that vibration is transmitted by a mouse placed on the upper substrate, Can be achieved as a vibrating mouse pad.

Further, it may further comprise a housing spaced apart from the lower substrate by a predetermined distance; And an outer spacer provided between the housing and the upper substrate to separate the lower substrate from the housing.

The vibration of the first dielectric layer due to the beating electric field is transmitted to the upper substrate by the inner spacer and the outer spacer.

Further, at least one of the inner spacer and the outer spacer may include an elastic member.

The upper substrate may include a touch plate having a mouse at an upper portion thereof for providing vibration with the mouse, an electrode layer connected to the ground, and a second dielectric layer.

The first voltage and the second voltage have the same amplitude, the frequency of the beat electric field is the first frequency and the second frequency difference, the first frequency and the second frequency difference are 1 to 100 Hz, A first voltage applying unit applying the first voltage to the first electrode, and a second voltage applying unit applying the second voltage to the second electrode.

The controller may further include a controller for controlling at least one of the first voltage applying unit and the second voltage applying unit to adjust a vibration frequency of the first dielectric layer.

The first electrode may have a first extending end whose longitudinal direction is parallel to one edge of the substrate and a plurality of first electrodes whose longitudinal direction is perpendicular to the first extending end, And a plurality of first ends of the plurality of first electrodes whose longitudinal direction is perpendicular to the first end of the first electrode, the second end being spaced apart from each other at a first end of the first electrode, The second electrode may include a first electrode of a plurality of second electrodes whose longitudinal direction is perpendicular to the second extending end and which are spaced apart from each other at a second extending end and a second extending end whose lengthwise direction is parallel to the other edge of the substrate, And a second end of a plurality of second electrodes, the second end of which is perpendicular to the first end of the second electrode, the first end of the second electrode being spaced apart from the first end of the second electrode, The second end and the second end of the second electrode cross each other If it not can be characterized as being arranged separately from each other.

A fourth object of the present invention is to provide a plasma display panel in which a first voltage having a first frequency is applied to a first electrode attached to one surface of a substrate and a second electrode arranged at a predetermined distance from the first electrode, Applying a second voltage having a different second frequency; Generating a beating electric field in an electrode portion composed of the first electrode and the second electrode; A dielectric layer connected between the first electrode and the second electrode is vibrated by a beat electric field generated in the electrode portion; Oscillating the upper substrate spaced apart from the first dielectric layer by an inner spacer and having an electrode layer connected to the ground; And providing the vibration with a mouse placed on the upper substrate. The tactile display method using the vibrating mouse pad can be achieved.

The vibrating mouse pad according to an embodiment of the present invention can use a digital output instead of a conventional analog output by applying a tactile presentation module using a beat electric field, And can use a FET-based digital switching device instead of the existing analog switching device (Opto-Diode), reduce the calculation load of the CPU, and use a low-cost MCU (for example, a BLE cip) The magnitude of the magnitude is amplified when the vibration due to the beating electric field is amplified to lower the driving power of the HV AMP (about 1.5 kV or less), and it is possible to have an electrical advantage that can realize the miniaturization, low power and low cost of the controller .

In addition, since the vibration mouse pad according to an embodiment of the present invention applies a tactile presentation module using a beating electric field, the bandwidth of the conventional analog switching device is limited to about 200 Hz, and the switching can not be performed until the threshold value of about 1 kV or more is exceeded However, according to the configuration of the embodiment of the present invention, the digital switching device can be used, and the advantage of the tactile generation that can increase the diversity of the tactile combination can be obtained.

It should be understood, however, that the effects obtained by the present invention are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those skilled in the art to which the present invention belongs It will be possible.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description, serve to further the understanding of the technical idea of the invention, It should not be construed as limited.
1 is a sectional view of a conventional electrostatic tactile presentation device,
2 is a cross-sectional view of a conventional vibration transmission type electrostatic tactile force presentation device,
3 is a perspective view of a mouse and a vibrating mouse pad using a beat electric field according to an embodiment of the present invention,
FIG. 4 is a cross-sectional view of a vibrating mouse pad schematically showing how a low-frequency vibration sensation is transmitted through a mouse pad according to an embodiment of the present invention.
FIG. 5 is a perspective view and an enlarged plan view of a tactile presentation module using a beat electric field, which is a core component of a vibration mouse pad according to an embodiment of the present invention;
6 is a cross-sectional view of part A of Fig. 6,
7 is a graph showing a beat electric field waveform when a first voltage having a frequency of 100 Hz is applied to a first electrode and a second voltage having a frequency of 105 Hz is applied to a second electrode according to an embodiment of the present invention,
8A is a graph of a beat electric field waveform when a first voltage having a frequency of 100 Hz is applied to a first electrode and a second voltage having a frequency of 102 Hz is applied to a second electrode according to an embodiment of the present invention,
8B is a graph showing a beat electric field waveform when a first voltage having a frequency of 100 Hz is applied to a first electrode and a second voltage having a frequency of 103 Hz is applied to a second electrode according to an embodiment of the present invention,
8C is a graph of a beat electric field waveform when a first voltage having a frequency of 100 Hz is applied to a first electrode and a second voltage having a frequency of 107 Hz is applied to a second electrode according to an embodiment of the present invention,
9 is a sectional view of a vibrating mouse pad using a beat electric field according to an embodiment of the present invention,
10 is an exploded perspective view of a vibrating mouse pad using a beat electric field according to an embodiment of the present invention,
11 is a perspective view of a vibrating mouse pad using a beat electric field according to an embodiment of the present invention,
12 is a cross-sectional view of part B of Fig. 11,
13 is a cross-sectional view of part C in Fig. 11,
FIG. 14 is an exploded perspective view of a vibrating mouse pad using a beat electric field having an electrode portion according to another embodiment of the present invention, FIG.
15 is a partial plan view of an electrode unit according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more readily apparent from the following description of preferred embodiments with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art.

In this specification, when an element is referred to as being on another element, it may be directly formed on another element, or a third element may be interposed therebetween. Also in the figures, the thickness of the components is exaggerated for an effective description of the technical content.

Embodiments described herein will be described with reference to cross-sectional views and / or plan views that are ideal illustrations of the present invention. In the drawings, the thicknesses of the films and regions are exaggerated for an effective description of the technical content. Thus, the shape of the illustrations may be modified by manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention are not limited to the specific forms shown, but also include changes in the shapes that are produced according to the manufacturing process. For example, the etched area shown at right angles may be rounded or may have a shape with a certain curvature. Thus, the regions illustrated in the figures have attributes, and the shapes of the regions illustrated in the figures are intended to illustrate specific forms of regions of the elements and are not intended to limit the scope of the invention. Although the terms first, second, etc. have been used in various embodiments of the present disclosure to describe various components, these components should not be limited by these terms. These terms have only been used to distinguish one component from another. The embodiments described and exemplified herein also include their complementary embodiments.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms "comprises" and / or "comprising" used in the specification do not exclude the presence or addition of one or more other elements.

In describing the specific embodiments below, various specific details have been set forth in order to explain the invention in greater detail and to assist in understanding it. However, it will be appreciated by those skilled in the art that the present invention may be understood by those skilled in the art without departing from such specific details. In some instances, it should be noted that portions of the invention that are not commonly known in the description of the invention and are not significantly related to the invention do not describe confusing reasons to explain the present invention.

Hereinafter, the structure and function of a vibrating mouse pad using a beat electric field according to an embodiment of the present invention will be described. 3 is a perspective view of a mouse and a vibrating mouse pad using a beat electric field according to an embodiment of the present invention. FIG. 4 is a cross-sectional view of a vibrating mouse pad that schematically shows a low-frequency vibration sensation transmitted through a mouse pad according to an embodiment of the present invention. Referring to FIG.

As shown in FIGS. 3 and 4, a vibrating mouse pad using a beat electric field according to an embodiment of the present invention is vibrated, so that such vibration is transmitted to a mouse placed on the vibrating mouse pad, It is understood that it gives a touch.

Hereinafter, the structure and function of the tactile presentation module using the beat electric field, which is a core structure of the vibration magnet 110 using the beat electric field according to an embodiment of the present invention, will be described. 5 is a perspective view and an enlarged plan view of a tactile presentation module 100 using a beat electric field according to an embodiment of the present invention. 6 shows a cross-sectional view of part A of Fig.

5 and 6, a tactile presentation module 100 using a beat electric field according to an embodiment of the present invention includes a substrate 10, an electrode portion, a dielectric layer 4, As shown in FIG.

The electrode unit according to an embodiment of the present invention includes a first electrode 21 and a second electrode 25 spaced apart from each other by a predetermined distance so as not to intersect with each other .

3, the first electrode 21 is attached to one surface of the substrate 10 and receives a first voltage having a first frequency, and the second electrode 25 receives a first voltage having a first frequency, And a second voltage having a second frequency different from the first voltage. Accordingly, a first voltage having a first frequency is applied to the first electrode 21, and a second voltage having a second frequency is applied to the second electrode 25, thereby generating a beating electric field in the electrode portion .

For example, a first voltage having an amplitude of 1.5 kV and a frequency of 100 Hz is applied to the first electrode 21, a second voltage having an amplitude of 1.5 kV and a frequency of 105 z is applied to the second electrode 25 , A beat electric field waveform having an amplitude of 1,5 kV and a frequency of 5 Hz is formed at the electrode portion.

The dielectric layer 4 is connected between the first electrode 21 and the second electrode 25 as shown in FIG. 6, and is vibrated by the beat electric field generated at the electrode portion. This dielectric layer 4 may be composed of a polyimide film or the like in a specific embodiment and the oscillation frequency of the dielectric layer 4 is based on the frequency of the beat electric field and the oscillation amplitude of the dielectric layer 4 is based on the amplitude of the beat electric field .

The first voltage applied to the first electrode 21 and the second voltage applied to the second electrode 25 have the same amplitude and the frequency of the beat electric field is the first frequency and the second frequency difference, It is preferable that the first frequency and the second frequency difference are about 1 to 100 Hz.

The first voltage application unit includes a PWM controller and the like so that a first voltage having a first frequency is applied to the first electrode 21 and a second voltage application unit includes a PWM controller and the like, And the second voltage is applied to the second electrode 25.

As shown in FIG. 4, the shapes of the first electrode 21 and the second electrode 25 are arranged to be spaced apart from each other without intersecting with each other. More specifically, the first electrode 21 has a first extending end 22 whose longitudinal direction is parallel to one side edge of the substrate 10 and a second extending end 22 which is spaced apart from the first extending end 22 by a predetermined distance, And a first end 23 of a plurality of first electrodes perpendicular to the first extension 22.

On the other hand, the second electrode 25 also has a second extending end whose longitudinal direction is parallel to the other edge of the substrate 10 and a second plurality of second extending ends whose length direction is perpendicular to the second extending end, And a first end 27 of the electrode.

The first end 23 of the first electrode and the first end 27 of the second electrode are spaced apart from each other without intersecting with each other.

In addition, the controller may control at least one of the first voltage applying unit and the second voltage applying unit to adjust the vibration frequency of the dielectric layer. That is, for example, when the control unit changes the frequency of the second voltage applied to the second electrode 25 by the second voltage applying unit, the first frequency and the second frequency difference are changed, The frequency is changed and the vibration frequency can be adjusted.

The control unit may control the first voltage applying unit and the second voltage applying unit so that the carrier frequency, which is a smaller one of the first frequency and the second frequency, coincides with the resonance frequency of the vibrating mouse pad 100, Any one can be controlled. When the carrier frequency becomes equal to the resonance frequency of the vibrating mouse pad 100 as an actuator, the beat magnitude becomes the maximum value. That is, for example, when the resonance frequency is 90 Hz, if the first frequency is 90 Hz and the second frequency is 95 Hz, the beat frequency becomes 5 Hz, and the beat magnitude becomes the maximum value at this time.

In addition, the control unit can change and control the magnitude of the beat vibration by adjusting the difference value between the carrier frequency and the resonance frequency.

FIG. 7 is a graph illustrating a relationship between a voltage applied to the first electrode 21 and a voltage applied to the second electrode 25 when a first voltage having a frequency of 100 Hz is applied to the first electrode 21 and a second voltage having a frequency of 105 Hz is applied to the second electrode 25 according to an embodiment of the present invention. FIG. 6 is a graph showing a beat electric field waveform. FIG.

8A is a graph showing a relationship between a voltage applied to the first electrode 21 and a voltage applied to the second electrode 25 by applying a first voltage having a frequency of 100 Hz to the first electrode 21 and applying a second voltage having a frequency of 102 Hz to the second electrode 25 according to an embodiment of the present invention FIG. 8B is a graph showing a beat electric field waveform graph of a case where a first voltage having a frequency of 100 Hz is applied to the first electrode 21 and a second voltage having a frequency of 103 Hz is applied to the second electrode 25 according to an embodiment of the present invention. FIG. 8C is a graph showing a beat electric field waveform when a second voltage having a frequency is applied. FIG. 8C is a graph showing a waveform of a beat electric field waveform when a first voltage having a frequency of 100 Hz is applied to the first electrode 21 according to an embodiment of the present invention, And a second electric field having a frequency of 107 Hz is applied to the second electrode 25. As shown in FIG.

As shown in FIG. 7, the first voltage application unit applies a first voltage of a square wave type having a first frequency of 100 Hz to the first electrode 21 using a PWM controller or the like, and the second voltage application unit It can be seen that a square wave first voltage having a second frequency of 105 Hz is applied to the first electrode 21 using a PWM controller or the like to form a beating electric field having a frequency of 5 Hz.

8A, 8B and 8C, the control unit can control the frequency of the beat electric field by controlling the second voltage applying unit to change the second frequency of the second voltage. That is, as shown in FIG. 8A, by changing the second frequency of the second voltage to 102 Hz, the frequency of the beat electric field can be adjusted to about 2 Hz, and the second frequency of the second voltage is changed to 103 Hz , The frequency of the beat electric field can be adjusted to about 3 Hz, and the frequency of the beat electric field can be adjusted to about 7 Hz by changing the second frequency of the second voltage to 107 Hz.

Therefore, the frequency of the beating electric field can be easily changed, and the vibration frequency of the tactile display module 100 can be easily controlled.

The tactile presentation module 100 using the beating electric field according to an embodiment of the present invention can use a digital output instead of a conventional analog output and can realize driving with only two channels of PWM , A FET-based digital switching device can be used instead of the existing analog switching device (Opto-Diode), a CPU can be used to reduce the calculation load, a low-end MCU (for example, a BLE cip) The magnitude of the magnitude is amplified to lower the driving power of the HV AMP (about 1.5 kV or less), and thus it is possible to achieve miniaturization, low power consumption, and low cost of the controller.

The tactile presentation module 100 using the beat electric field according to an embodiment of the present invention can switch over a threshold of about 1 kV or more by limiting the bandwidth of the conventional analog switch to about 200 Hz, The configuration according to an embodiment of the present invention allows the use of a digital switching device, which has the advantage of tactile generation that can increase the variety of tactile combinations.

Hereinafter, the configuration and function of the vibration mouse 110 using the beat electric field will be described in more detail. The vibrating mouse pad 110 using the beat electric field is based on the tactile presentation module 100 described above. 9 illustrates a cross-sectional view of a vibrating mouse pad 110 using a beat electric field according to one embodiment of the present invention.

10 is an exploded perspective view of a vibrating mouse pad 110 using a beat electric field according to an embodiment of the present invention. 11 is a perspective view of a vibrating mouse pad 110 using a beat electric field according to an embodiment of the present invention. Fig. 12 shows a cross-sectional view of the portion B in Fig. 13 shows a cross-sectional view of part C of Fig.

10, 11, 12 and 13, a vibrating mouse pad 110 using a beat electric field according to an embodiment of the present invention includes a housing 20, a lower substrate 11, A spacer 40 and an electrode portion including a first electrode 21 and a second electrode 25 and a first dielectric layer 31 and an inner spacer 32 and an upper substrate 12 . The user places the mouse 60 on the upper surface of the upper substrate 12 and uses the mouse 60.

The electrode unit includes a first electrode (21) attached to one surface of the lower substrate (11) and receiving a first voltage having a first frequency, and a second electrode having a second voltage different from the first frequency And a second electrode 25. The first electrode 21 and the second electrode 25 are spaced apart from each other by a predetermined distance to generate a beating electric field.

The first dielectric layer 31 is connected between the first electrode 21 and the second electrode 25 and is vibrated by the beat electric field generated in the electrode portion. The upper substrate 12 is spaced apart from the first dielectric layer 31 by a predetermined distance and includes an electrode layer 3 connected to the ground.

7, the inner spacer 32 is provided between the lower substrate 11 and the first dielectric layer 31 to separate the lower substrate 11 and the first dielectric layer 31 from each other, .

The housing 20 is spaced apart from the lower substrate 11 by a predetermined distance and the outer spacer 40 is provided between the housing 20 and the upper substrate 12 to separate the lower substrate 11 and the housing 20 .

Accordingly, a first voltage of a square wave or sinusoidal waveform having a first frequency is applied to the first electrode 21, and a second voltage of a square wave or sinusoidal wave having a second frequency is applied to the second electrode 25 The oscillation of the first dielectric layer 31 due to the beating electric field is transmitted to the upper substrate 12 by the inner spacer 32 and the outer spacer 40, 12) is transmitted to the user while the mouse is vibrating.

In addition, at least one of the inner spacer 32 and the outer spacer 40 according to one embodiment of the present invention may be configured to include the elastic member 41.

The upper substrate 12 according to an embodiment of the present invention includes a touch plate 13 for providing a tactile sense to a user using the mouse 60 and a touch plate 13 disposed on the lower surface of the touch plate 13, A connected electrode layer 3 and a second dielectric layer 14 provided on the lower side of the electrode layer 3. [

As described above, the amplitudes of the first voltage and the second voltage are matched with each other, the frequency of the beat electric field is the difference between the first frequency and the second frequency, and the first frequency and the second frequency difference are 1 to 100 Hz , Respectively.

The first voltage application unit applies a first voltage in the form of a square wave or a sine wave having the first frequency to the first electrode 21 and the second voltage application unit applies the first voltage having the second frequency to the second electrode 25 And applies a second voltage in the form of a square wave or a sine wave.

In addition, as described above, the vibration frequency of the first dielectric layer 31 can be controlled by controlling at least one of the first voltage applying unit and the second voltage applying unit.

 14 is an exploded perspective view of a vibrating mouse pad using a beat electric field according to another embodiment of the present invention. 15 is a partial plan view of the electrode unit according to another embodiment of the present invention. 14 and 15, the first electrode 21 according to another embodiment of the present invention has a first extending end 22 whose length direction is parallel to one side edge of the lower substrate 11, And a plurality of first ends 23 of the first electrodes 22 spaced apart from each other at the first extending end 22 and perpendicular to the first extending end 22 in the longitudinal direction, May be configured to have a plurality of first ends 24 of a plurality of first electrodes whose longitudinal direction is perpendicular to the first end 23 of the first electrode, spaced apart from each other at one end 23 .

The second electrode 25 also has a plurality of second electrodes 25 whose longitudinal direction is spaced apart from each other at a second extending end and a second extending end, which are parallel to the other edge of the lower substrate 11, (27) of the second electrode and a first end (27) of the second electrode, the first end (27) of the second electrode being perpendicular to the first end (27) of the second electrode And a second end 28 of the second electrode of the second electrode.

The second end 24 of the first electrode and the second end 28 of the second electrode are spaced apart from each other without intersection.

When the first electrode 21 and the second electrode 25 are formed in this form, it is possible to prevent the shape of the charge concentrated on the electrode end portion and to evenly distribute the charge density, The output vibration amplitude can be increased.

The present invention can also be embodied as computer-readable codes on a computer-readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored. Examples of the computer-readable recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and may be implemented in the form of a carrier wave (for example, transmission over the Internet) . In addition, the computer-readable recording medium may be distributed over network-connected computer systems so that computer readable codes can be stored and executed in a distributed manner. In addition, functional programs, codes, and code segments for implementing the present invention can be easily inferred by programmers of the technical field to which the present invention belongs.

It should be noted that the above-described apparatus and method are not limited to the configurations and methods of the embodiments described above, but the embodiments may be modified so that all or some of the embodiments are selectively combined .

1: Conventional electrostatic force tactile display device
2: PCB substrate
3: electrode layer
4: Dielectric layer
5: Lower plate
6: lower plate electrode layer
7: Spacer
8: Top plate
9: Upper electrode layer
10: substrate
11: Lower substrate
12: upper substrate
13: Touch plate
14: Second dielectric layer
20: Housing
21: first electrode
22: first extension end
23: first branch of the first electrode
24: the second branch of the first electrode
25: Second electrode
26: second extension end
27: first branch of the second electrode
28: the second branch of the second electrode
31: First dielectric layer
32: inner spacer
40: outer spacer
41: elastic member
60: Mouse
100: Tactile presentation module using beat electric field
110: Vibrating mouse pad with beat electric field

Claims (19)

In a vibrating mouse pad,
Board;
A first electrode that is attached to one surface of the substrate and receives a first voltage having a first frequency and a second electrode that receives a second voltage having a second frequency different from the first frequency; An electrode unit disposed between the first electrode and the second electrode to generate a beating electric field; And
And a dielectric layer which is connected between the first electrode and the second electrode and is vibrated by an electric field generated by the electrode portion, and transmits vibration through a mouse placed on the dielectric layer. Vibration mouse pad.
The method according to claim 1,
Wherein the vibration frequency of the dielectric layer is based on the frequency of the beat electric field,
Wherein the vibration amplitude of the dielectric layer is based on the amplitude of the beating electric field.
The method according to claim 1,
Wherein the first voltage and the second voltage have the same amplitude,
Wherein the frequency of the beat electric field is a difference between the first frequency and the second frequency, and the first frequency and the second frequency difference are 1 to 100 Hz.
The method according to claim 1,
Further comprising a first voltage application unit for applying the first voltage to the first electrode and a second voltage application unit for applying the second voltage to the second electrode. .
5. The method of claim 4,
Wherein the first electrode is spaced apart from the first extending end in a longitudinal direction parallel to one side edge of the substrate and the first extending end and is perpendicular to the first extending end, And,
Wherein the second electrode is spaced apart from the second extending end and the second extending end, the length of which is parallel to the other edge of the substrate, and the first electrode of the plurality of second electrodes whose longitudinal direction is perpendicular to the second extending end And,
Wherein the first end of the first electrode and the first end of the second electrode are spaced apart from each other without being intersected with each other.
6. The method of claim 5,
And a control unit controlling at least one of the first voltage applying unit and the second voltage applying unit to adjust a vibration frequency of the dielectric layer.
The method according to claim 6,
Wherein,
Wherein the controller controls at least one of the first voltage application unit and the second voltage application unit such that a carrier frequency that is a smaller one of the first frequency and the second frequency matches the resonance frequency of the tactile presentation module A vibrating mouse pad using a beat electric field.
8. The method of claim 7,
Wherein the controller changes the magnitude of the beat vibration by adjusting a difference value between the carrier frequency and the resonance frequency.
The method according to claim 6,
Wherein the first electrode has a plurality of first ends of the plurality of first electrodes which are spaced apart from each other at a first end of the first electrode and whose length direction is perpendicular to the first end of the first electrode,
The second electrode has a second end of a plurality of second electrodes whose longitudinal direction is perpendicular to the first end of the second electrode, the second end being spaced apart from each other at a first end of the second electrode,
Wherein the second end of the first electrode and the second end of the second electrode are spaced apart from each other without intersecting with each other.
A second electrode having a second frequency different from the first frequency is applied to a first electrode attached to one surface of the substrate and a second electrode having a second frequency different from the first frequency, Applying a voltage;
Generating a beating electric field in an electrode portion composed of the first electrode and the second electrode;
A dielectric layer connected between the first electrode and the second electrode is vibrated by a beat electric field generated in the electrode portion; And
And transmitting the vibration through a mouse placed on the upper side of the dielectric layer.
In a vibrating mouse pad,
A lower substrate;
A first electrode which is attached to one surface of the lower substrate and receives a first voltage having a first frequency and a second electrode that receives a second voltage having a second frequency different from the first frequency, An electrode unit having one electrode and the second electrode spaced apart from each other by a predetermined distance to generate a beating electric field;
A first dielectric layer connected between the first electrode and the second electrode, the first dielectric layer being vibrated by an electric field generated by the electrode portion;
An upper substrate spaced apart from the first dielectric layer and having an electrode layer connected to the ground; And
And an inner spacer provided between the lower substrate and the first dielectric layer to separate the lower substrate from the first dielectric layer,
And vibrating the vibrating mouse pad using the beat field electric field.
12. The method of claim 11,
A housing having a predetermined spacing from the lower substrate; And
Further comprising an outer spacer disposed between the housing and the upper substrate and spaced apart from the lower substrate and the housing.
13. The method of claim 12,
And the vibration of the first dielectric layer due to the beat electric field is transmitted to the upper substrate by the inner spacer and the outer spacer.
14. The method of claim 13,
Wherein at least one of the inner spacer and the outer spacer includes an elastic member.
15. The method of claim 14,
Wherein the upper substrate comprises:
And a vibrating mouse pad having a top portion provided with a mouse, a touch plate for providing vibration with the mouse, an electrode layer connected to the ground, and a second dielectric layer.
12. The method of claim 11,
Wherein the first voltage and the second voltage have the same amplitude,
Wherein the frequency of the beat electric field is the first frequency and the second frequency difference, the first frequency and the second frequency difference are 1 to 100 Hz,
Further comprising a first voltage application unit for applying the first voltage to the first electrode and a second voltage application unit for applying the second voltage to the second electrode. .
17. The method of claim 16,
Further comprising a controller for controlling at least one of the first voltage applying unit and the second voltage applying unit to adjust a vibration frequency of the first dielectric layer.
12. The method of claim 11,
Wherein the first electrode comprises:
A plurality of first electrodes of a plurality of first electrodes whose longitudinal direction is perpendicular to the first extending ends and which are spaced apart from each other by a predetermined distance from each other at the first extending end and whose first direction is parallel to one side edge of the substrate, And a plurality of first electrodes of the plurality of first electrodes, the first ends of the plurality of first electrodes being perpendicular to the first ends of the first electrodes,
Wherein the second electrode comprises:
A first end of a plurality of second electrodes whose longitudinal direction is perpendicular to the second extending end and spaced apart from each other at a second extending end and a second extending end which are parallel to the other edge of the substrate, And a second end of the plurality of second electrodes whose longitudinal direction is perpendicular to the first end of the second electrode, spaced apart from each other at a first end of the electrode,
Wherein the second end of the first electrode and the second end of the second electrode are spaced apart from each other without intersecting with each other.
A second electrode having a second frequency different from the first frequency is applied to a first electrode attached to one surface of the substrate and a second electrode having a second frequency different from the first frequency, Applying a voltage;
Generating a beating electric field in an electrode portion composed of the first electrode and the second electrode;
A dielectric layer connected between the first electrode and the second electrode is vibrated by a beat electric field generated in the electrode portion;
Oscillating the upper substrate spaced apart from the first dielectric layer by an inner spacer and having an electrode layer connected to the ground; And
And providing the vibration with a mouse placed on the upper substrate.
KR1020150133292A 2015-09-21 2015-09-21 Haptic mousepad using beat phenoenon KR20170034993A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020150133292A KR20170034993A (en) 2015-09-21 2015-09-21 Haptic mousepad using beat phenoenon
PCT/KR2015/011401 WO2017051973A1 (en) 2015-09-21 2015-10-28 Tactile presentation module using beat electric field, tactile presentation device, vibrating mouse pad, and method for presenting tactile sensation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150133292A KR20170034993A (en) 2015-09-21 2015-09-21 Haptic mousepad using beat phenoenon

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101022065B1 (en) 2009-01-16 2011-03-17 삼성모바일디스플레이주식회사 Touch Screen Panel
KR101115421B1 (en) 2010-07-20 2012-02-15 한국표준과학연구원 Touch apparatus and method with tactile feedback device and recognition of position and force thereof
KR101124227B1 (en) 2009-09-29 2012-04-12 한국표준과학연구원 Contact resistance type touch-input device for measuring intensity of force and position, and method for manufacturing and using the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101022065B1 (en) 2009-01-16 2011-03-17 삼성모바일디스플레이주식회사 Touch Screen Panel
KR101124227B1 (en) 2009-09-29 2012-04-12 한국표준과학연구원 Contact resistance type touch-input device for measuring intensity of force and position, and method for manufacturing and using the same
KR101115421B1 (en) 2010-07-20 2012-02-15 한국표준과학연구원 Touch apparatus and method with tactile feedback device and recognition of position and force thereof

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