KR20140008229A - Film haptic system with multiple operation points - Google Patents

Abstract

The present invention relates to a thin film type actuator capable of generating various tactus and sound with multiple operation units. According to the present invention, a film type actuator comprises an upper board and a lower board composed as one board, and a pair of electrode units which can be pulled from each other using electrostatic forces between the upper board and the lower board. The respective electrode units executes the role of an operation unit by being individually operated, and the upper board and the lower board are composed as a single board. The operation of the respective electrode units is overlapped to generate new physical operation which is different from the existing operation and to generate the haptic feeling or sound. According to the present invention, the actuator has a good point capable of generating the haptic feeling or sound by modulating and combining the amplitude and frequency of the operation in the respective operation units.

Description

Film Haptic System with Multiple Operation Points {Film Haptic System with Multiple Operation Points}

The present invention relates to a device for transmitting tactile sensations, and more particularly, to a thin film type tactile transmission device and a method capable of generating various tactile sensations or sounds while having multiple operation units.

Terminals manufactured in various forms such as mobile phones, navigation, digital information display (DID), and tablets that are currently being released basically provide a touch interface. As a method for enhancing a user experience by interworking with a touch interface, a recently emerging technology is a haptic technology that provides a touch. When the user interacts with the digital object, various types of tactile feelings can be provided at the same time, thereby providing a more realistic user interface by providing the user with feedback in the form of a fusion of visual and tactile senses.

As a conventional method for providing a touch, a motor method is the most common. Motor systems have been used in a variety of mobile devices because of their fast response speed, low power and ease of tactile output control. However, in the case of providing the tactile feeling by the motor method, there is a difficulty in arranging the module due to the size of the tactile module, and the thickness of the mechanism itself is thick. In particular, in the conventional technology using a motor method, since vibration is propagated through the entire apparatus, it is difficult to provide a localized haptic sense only in the reach of a user, so it is applied to navigation, DID, monitor, etc., rather than a portable electronic device. It's hard to do.

In order to overcome these disadvantages, a film type tactile module technology that can be mounted on a display panel has recently emerged. Film type tactile module is largely divided into the case of using the deformation of the material itself using the electroactive polymer material and the case of using the electrostatic force. In the case of using an electroactive polymer material, the tactile module having a film type, low power, and a fast reaction speed can be implemented according to the characteristics of the polymer. At this time, since it is difficult to produce sufficient output only by deformation of the polymer material, an additional device having a certain weight may be used. Eventually, the deformation of the electroactive polymer causes the attachment to be exercised, and the user is provided with tactile feeling due to the movement of the attachment. In this case, therefore, an electroactive polymer layer and an additional device are required to produce sufficient output.

On the other hand, one of the existing methods using the electrostatic force is disclosed in the preceding invention (application number 2011-7018443). In the technique of the prior art, the same or different charges are charged to each substrate through the conductive material in a state where two substrates coated with a conductive material are disposed. Then, the principle that touch is generated by momentary attraction and repulsive force generated by the electrostatic force generated between them is used. As described above, the actuator device composed of two substrates is independently configured above or below the touch panel. In practical applications, additional insulation layers may be needed to be inserted between the substrates to prevent conduction.

However, the prior arts including the prior art have a structure in which the entire apparatus vibrates or the whole of one substrate vibrates so that only the same touch can be felt in all the substrates. Therefore, the prior arts have disadvantages in that different tactile feedbacks (multi-tactile) or active tactile feedbacks (for example, hands do not move but touch like water) are very difficult to implement even if there are two or more touch points.

The technical problem to be solved of the present invention is to implement a function that cannot be implemented in the above-described prior art, when the user touches a button or display panel with two or more contact points, different button feeling or various tactile feedback The present invention provides a transparent film-type tactile transmission device and a method for delivering the same.

Another technical problem to be solved by the present invention is to provide a tactile / sound transmission device that can generate a variety of tactile as well as sound.

Actuator according to an embodiment of the present invention is disposed on the upper plate, the lower plate, the upper plate and at least two independent electrode portion having a planar shape, two or more independent electrode portion disposed on the upper surface and having a flat string shape, the electrode of the upper plate and the lower plate It consists of a structure that makes the parts face each other with a space, and has a total of two or more pairs of electrode portions, and is designed to generate individual movements for each pair of electrode portions facing each other according to an electrical input signal.

According to the configuration of the present invention, a plurality of film actuators are configured on one substrate, so that various sounds can be generated as well as tactile feedback. That is, when the user touches the display panel with two or more fingers, tactile feedback having different frequencies or intensities for each finger is possible. Second, when the user touches between actuators, strong tactile feedback is possible (up to 2x) by the overlap of vibrations generated in the actuators near the touch point. Third, new vibration feedback is possible by overlapping different vibrations generated in the plurality of actuators (a beat phenomenon). The tactile feedback as described above has the advantage that not only various tactile transmissions to the user but also various sounds can be transmitted by the vibration of the film-type actuator.

1 is a structural diagram of a film-type actuator having multiple operation parts according to an embodiment of the present invention,
2 is a side cross-sectional view of the film type actuator of FIG. 1,
3 is an exemplary view for explaining the operation of the film-type actuator of FIG.
4 is a plan view illustrating a method of interlocking the film-type actuator of FIG. 1 with a keyboard input,
FIG. 5 is a conceptual diagram illustrating an advantage of generating the same output in multiple operation units of the film type actuator of FIG. 1.
6A and 6B are conceptual views illustrating characteristics when generating different outputs in the multiple operation units of the film type actuator of FIG. 1.
7 is a conceptual diagram illustrating an exemplary method for implementing the flow of vibrations over time in the film-like actuator of FIG. 1,
FIG. 8 is a conceptual diagram illustrating another exemplary method of implementing the flow of vibrations over time in the film type actuator of FIG. 1.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more apparent from the following description of preferred embodiments with reference to the attached 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, without intention other than to provide an understanding of the present invention.

In this specification, when it is mentioned that some element or lines are connected to a target element block, it also includes a direct connection as well as a meaning indirectly connected to the target element block via some other element.

In addition, the same or similar reference numerals shown in the drawings denote the same or similar components as possible. In some drawings, the connection relationship between the device and the layer or line is only shown for effective description of the technical content, and other devices, material layers or circuit blocks may be further provided.

Note that each embodiment described and illustrated herein may also include complementary embodiments thereof, and details of switching operations and internal functional circuits related to haptic generation are not described in detail in order not to obscure the subject matter of the present invention. note.

The present invention provides a thin film-type actuator-based tactile / sound generating device and control capable of generating sounds as well as various and active tactile feedback to a user when a user interacts with an object and a finger output on a touch-type display. Provide technology.

In order to achieve the object described above, the tactile / sound generating apparatus according to the present invention is composed of two or more actuators capable of simultaneously transmitting tactile, ie, vibration to one substrate. The actuator can be configured as a transparent film-type actuator, which can be easily mounted on a display device having a touch screen such as a mobile phone. Like the tactile / sound generating device, when constituting two or more actuators, a tactile feedback can be transmitted to the user by overlapping vibrations generated by the respective actuators, thereby enabling various tactile feedbacks that cannot be transmitted to one actuator.

This can be explained by the interference between two waves when two vibrations overlap.

과

인 두 파동,

와

의 한 특별한 위치에서의 합성파는 다음의 식과 같다. For example, the amplitude (x) is the same and the frequency

and

Pharyngeal wave,

Wow

The synthesized wave at a particular position of is given by

If the phases of two waves coincide according to the above equation, that is, constructive interference occurs, the amplitude is twice the amplitude of each wave. This allows tactile transmission up to twice the maximum vibration that can be generated by one actuator.

과

의 주파수가 비슷한 경우 합성파는 두 파동의 주파수의 중간값을 갖는 항을 지배적인 파동성분으로 갖게 되며 상대적으로 느린 주기를 갖는 항은 진폭을 변조하는 항으로 작용하여 새로운 진동수를 갖는 합성파가 만들어 지며, 이러한 현상을 맥놀이 현상이라 한다. 이는 액추에이터가 발생시키지 않은 진동수를 갖는 촉각 전달이 가능해 진다. Also

and

If the frequencies of are similar, the synthesized wave will have the term having the median value of the two waves as the dominant wave component, and the term with the relatively slow period will act as the term for modulating the amplitude. This phenomenon is called the beat phenomenon. This enables tactile transmission with a frequency that is not generated by the actuator.

As described above, in the case of using a plurality of actuators, various tactile transmissions that cannot be delivered to one actuator are possible by using reinforcement interference or beat phenomenon. In addition, in the case of the film-type actuator is composed of a structure that can generate a sound, it is possible to implement a variety of sounds as described above.

On the basis of the above described contents, the tactile / sound generating apparatus and the driving method according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a structural diagram of a film-type actuator having multiple operation parts according to an embodiment of the present invention.

As shown in FIG. 1, the film-type actuator having multiple operation parts faces the upper plate 101 and the lower plate 102, and a plurality of upper electrode portions 103 disposed under the upper plate, and a plurality of upper electrode portions. It consists of a plurality of lower plate electrode portion 104 disposed in the upper portion of the pair.

The top plate 101 as the first plate has the form of a single thin plate and is characterized by having a considerable level of strength. It is generally advantageous to be made of a material having a Young's Modulus of 1 GPa or more.

The lower plate 102 as the second plate is advantageously made into a thin plate using a material that is thicker or stronger than the upper plate. If the strength of the lower plate 102 is not sufficient, it is also possible to utilize a structure that serves to increase the strength of the lower plate 102 by placing a material of high strength under the lower plate 102.

The upper electrode unit 103 as the first plate electrode unit may be thinly coated or attached to the lower surface of the upper plate using a conductive material.

The lower electrode portion 104 as the second plate electrode portion may be thinly coated or attached to the upper surface of the lower plate 102 using a conductive material so as to face the upper electrode portion 103.

The first and second plate electrode parts may be made of a stronger and harder material than the materials of the first and second plates.

In order to prevent the short circuit of the electrode, a coating layer made of an insulating material may be formed on at least one of the upper electrode portion 103 and the lower electrode portion 102.

In the case of the present invention, the plurality of upper electrode portions 103 and the plurality of lower electrode portions 104 are disposed on the upper plate 101 and the lower plate 102 separately while forming electrode pairs facing each other. That is, one upper electrode unit 103 forms an electrode pair with a corresponding lower plate electrode unit 104 and is disposed to face each other. Here, since one electrode pair forms one operation unit, the plurality of electrode pairs form a multiple operation unit.

Spacers 110 are provided at the edge portions between the upper plate 101 and the lower plate 102 to form a space in which the upper electrode 103 and the lower electrode 104 are not in contact with each other. That is, the spacer 110 forms a support structure for supporting the upper plate 101 and the lower plate 102 in parallel with each other.

In order to impart the function of making the film actuator of FIG. 1 transparent, the upper plate 101 and the lower plate 102 may be manufactured using glass or a material having a high light transmittance, and the upper plate electrode unit 103 and the lower plate electrode. It is possible to use a transparent electrode material as the electrode material forming the unit 104.

FIG. 2 is a side cross-sectional view of the film type actuator of FIG. 1. FIG.

As shown in FIG. 2, a plurality of upper electrode portions 103 is disposed below the upper plate 101, and a plurality of lower electrode portions 104 are disposed above the lower plate 102. The upper electrode portion 103 and the lower electrode portion 104 disposed corresponding to each other face each other to form an electrode pair, and the pair of electrode portions may be formed as many as the upper electrode portion 103 or the lower electrode portion 104. do. That is, when four lower electrode parts 104 are four, there are four said electrode part pairs. Further, each pair of electrode portions is electrically separated. The spacer 110 may be disposed at a portion of the edge so that the upper electrode portion 103 and the lower electrode portion 104 do not electrically contact each other. The spacer 110 may be a material having elasticity such as soft polymer or rubber. In addition, the surface of one of the upper electrode 103 and the lower electrode 104 may be coated with an insulating coating film so that the upper electrode 103 and the lower electrode 104 are not electrically in contact with each other.

FIG. 3 is an exemplary view for explaining the operation of the film actuator of FIG. 1. FIG.

As shown in FIG. 3, an electrode is connected between the lower electrode portion 104 facing the upper electrode portion 103 forming a pair of pairs of electrode portions. After the electrode is connected, when the current is supplied using the power supply unit 105, since different electrodes are connected to the upper electrode 103 and the lower electrode 104, respectively, the polarity of the upper plate 101 and the lower plate 102 is different from each other. Another charge will be charged. For example, when a positive electrode is connected to the upper electrode unit 103, a positive charge is charged to the upper electrode unit 103, and a negative charge is charged to the lower electrode unit 104 when the negative electrode is connected to the lower electrode unit 104. A different electrode is formed on each plate you see.

In this case, an electrostatic force pulled by electric charges having different polarities is generated between the electrode parts, and the upper plate 101 and the lower plate 102 are attracted to each other. At this time, when the lower plate 102 is thicker or higher in strength, or when the lower plate 102 is fixed to a hard material, only the movement of the upper plate 101 may be induced.

Since the amount of charge charged in the upper electrode portion 103 and the lower electrode portion 104 changes according to the electric signal supplied by the power supply 105, the electrostatic force acting between the pair of electrode portions also changes in the same form. Therefore, since the state of movement of the top plate can be changed in accordance with the change of the current supplied from the power supply unit 105, there is an advantage that can generate a variety of movements, including vibration. In addition, since the material forming the upper plate 101 and the lower plate 102 is a material having a considerable strength, even if a portion where the electrode pairs to which the current is supplied is arranged by the attraction force is pulled (left portion in FIG. 2), the current is not supplied. The portion on which the electrode pairs are arranged (the right portion in FIG. 2) has a relatively smaller attraction force.

The movement generated by the operation principle of the film-type actuator in the present invention may be used to transmit a tactile feeling when the user touches a finger or the like, or may be used as a film-type device that generates sound through vibration.

For tactile feedback, vibrations with a frequency in the range of 0 to 300 Hz are generally generated, and for a speaker, frequency frequencies in the range of 20 to 20,000 Hz are generated. Depending on the purpose, it is also possible to generate a vibration that can feel sound and tactile. It is also possible, depending on the purpose, to generate sound at certain sites and tactile output at certain sites. In particular, when the plates 101 and 102 constituting the film-type actuator and the upper and lower electrode portions 103 and 104 are all transparent materials, they may be used as a tactile feedback device combined with a touch screen device or a transparent speaker.

FIG. 4 is a plan view illustrating a method of interlocking the film-type actuator of FIG. 1 with a keyboard input.

As shown in FIG. 4, a transparent film-type actuator is disposed on the keyboard displayed on the touch screen 401, and four pairs of electrode portions are arranged through the upper electrode portion 103 and the lower electrode portion 104. Can be. When the electrode pairs are arranged as shown in FIG. 4, localized tactile feedback may be received during keyboard input. In this case, the panel capable of recognizing touch is generally transparent and can be manufactured thinly, and thus can be disposed on the top of the film-type actuator, that is, the uppermost layer.

When the film actuator proposed in the present invention is made transparent and the pairs of electrode portions are arranged as shown in FIG. 4, the two keys can be minimized at the same time in the region included by the pair. As shown in FIG. 4, when the area of the keyboard is divided, even when the left and right hands are touching the touch screen at the same time, individual tactile feedback may be provided to each hand. The method of providing individual haptic feedback can be implemented by generating an electrostatic force-based tactile output that can depict the feeling of pressing a key only within the area where the finger touches, as described with reference to FIG. 3. In addition, even when inputting a special character (!, $, #, Etc.) or meridian (ㅃ, ㅉ, etc.) using the SHIFT key, etc., it is possible to provide tactile feedback to each of the two fingers being input at the same time. .

This feature not only provides the keyboard user with a locally limited key typing feeling within the key input area, but also provides tactile feedback to each finger even when multiple fingers are being input at the same time. Has the advantage.

Although it may be ideal to arrange the electrode pairs with the width corresponding to all keys, considering the disadvantage that the smaller the width, the smaller the electrostatic force, the key input is secured by dividing into four parts as in the embodiment proposed in the present invention. It may be possible to give a local tactile feedback feeling.

FIG. 5 is a conceptual diagram illustrating an advantage of generating the same output in the multiple operation unit of the actuator of FIG. 1.

As shown in FIG. 5, when the same input signal is provided by the separately provided power supply units 105 and 106 to the electrode pairs that are arranged separately, the respective operation units have the same movement, and thus the respective outputs overlap. This has the effect of increasing the output.

Therefore, it is possible to output tactile feedback or sound with a larger output than when operating individually.

FIG. 6 is a conceptual diagram illustrating characteristics when generating different outputs in the multiple operation unit of the actuator of FIG. 1.

As shown in Fig. 6A, when supplying separate electric signals to the operating portions A (left side) and B (right side) by the electrode pairs, respectively, A and B operate individually. At this time, since the upper plate 101 is one plate having strength, the operation of A and B overlaps with the upper plate 101 to generate a new pattern.

For example, as illustrated in FIG. 6B, when the vibration 601 having a frequency of f ₁ is generated at the portion A and the vibration 602 having a frequency of f ₂ is generated at the portion B, the upper plate 101 is generated. In this case, two components overlap to generate a new vibration 603. In this case, when the inputted two waveforms have the same amplitude, as shown in FIG. 6B, when the difference between the two frequencies f ₁ and f ₂ is very small, as shown in FIG. 6B, the shape of the superimposed waveform is f ₁ -f ₂ frequencies. It has the form of low frequency by the difference and shows the new form of the characteristic that the amplitude changes periodically. This phenomenon is physically called the beats phenomenon.

The film-type actuator having multiple operating points proposed in the present invention has a structure that can easily generate the beat phenomenon described above. By using the beat phenomenon, it is possible to simultaneously generate not only the original operating frequency but also a frequency lower than the difference between the two waveforms. When used tactilely, you can feel not only the vibration of the original operating frequency but also a new low frequency change, and when you use it to output sound, it generates not only the original high frequency sound but also the very low frequency sound that can not be easily obtained from ordinary speakers. It is possible to let. For example, when the vibrations of 1,000 Hz and 1,010 Hz are superimposed, there is an advantage of generating low frequency low frequency sounds that are generally difficult to reproduce.

In addition to the beat, this principle has the advantage that a new type of additional vibration effect can be obtained by varying the frequency and the amplitude in the multi-operator. The present invention allows all of these effects to be realized through a structure in which a plurality of pairs of electrode portions are arranged on one upper plate 101 and lower plate 102.

FIG. 7 is a conceptual diagram illustrating an exemplary method for implementing a flow of vibrations over time in the film type actuator of FIG. 1.

As shown in FIG. 7, in the case of a film-type actuator having each of the operation units A and B, the electrical signal x1 supplied to the operation unit A is supplied with a signal 701 that gradually decreases with time, and is supplied to the operation unit B. When the electric signal x2 is supplied with a signal 702 that gradually increases with time, an effect of generating a feeling that vibration is generated in A and moves to B as in the direction of the arrow can be obtained.

The film-type actuator having a multi-operation part proposed in the present invention has an effect of generating a feeling that vibration is flowing even though it is a thin film in appearance.

FIG. 8 is a conceptual diagram illustrating another exemplary method of implementing the flow of vibrations over time in the film type actuator of FIG. 1.

Referring to FIG. 8, the first plate 101 and the second plate 102 having a thin film shape spaced apart from each other and installed in parallel to each other are horizontally arranged in parallel. In addition, four first plate electrode portions 103 spaced apart in the first direction are disposed on the bottom surface of the first plate 101 to be electrically separated from each other. In addition, the four first plate electrode portions 103 may be disposed on an upper surface of the second plate 102 to form four pairs of electrode portions corresponding to the four first plate electrode portions 103, respectively. Four second plate electrode portions 104 formed to face each other are disposed. When the electrical signal is input, the electrode pairs facing each other independently perform physical movements.

As described with reference to FIG. 7, when the multi-operation unit is sequentially operated to generate waveforms A, B, D, and C, as shown in FIG. As described above, a phenomenon in which vibrations may move in the order of ABDC may occur. When applying a film-type actuator operating on the same principle to the electronic device it can be made to reproduce various physical feelings. For example, it is possible to reproduce the feeling of moving or hitting a ball or a vehicle and apply it to a game.

The first plate electrode part 103 or the second plate electrode part 104 may be formed of a transparent electrode that may transmit light. The usable transparent electrode may be indium tin oxide (ITO). As ITO consumes more indium, the price increases, and the economical efficiency decreases, and the resistance increases due to cracks caused by bending. Accordingly, a transparent electrode using carbon nanotubes may be considered.

In the transparent electrode made of carbon nanotubes, the most important characteristics can be conductivity, transparency, and flexibility. The carbon nanotubes constituting the carbon nanotube-containing transparent electrode are single-walled carbon nanotubes, thin Multi-walled carbon nanotubes, multi-walled carbon nanotubes or mixtures thereof may be used as raw materials, and there is no particular limitation in the present invention.

In particular, the carbon nanotubes may be those having an average length of 0.5 to 500㎛ based on the bundle, short carbon nanotubes by treating the commercially available long carbon nanotubes at low temperature by mechanical treatment, for example, ball milling After creating the tube, it is also possible to use it. In terms of reducing the contact resistance, the carbon nanotubes are more preferably used in the average length of 0.1 to 500㎛ based on the bundle.

In the case of a transparent electrode having a film form, the carbon nanotube powder as a raw material may be subjected to acid treatment, ultrasonic treatment, and the like, and then formed into a film, and the carbon nanotube powder is used to form a film. It is also possible to perform acid treatment, ultrasonic treatment, and the like on the film. In addition, after performing acid treatment, ultrasonic treatment, etc. on the carbon nanotube powder as a raw material, it is also possible to form it into a film, and to perform acid treatment, ultrasonic treatment, etc. on this again. The acid treatment or the ultrasonic treatment may be performed alone, but it may also be performed simultaneously to generate a defect.

Since the carbon nanotube-containing transparent electrode has flexibility, it can be usefully used in solar cells and the like, including various display devices, for example, liquid crystal display devices and organic light emitting display devices. When the flexible transparent electrode is used as the display element, the display element can be bent freely and convenience is increased. Also, in the case of a solar cell, the flexible transparent electrode can be used to provide various curved structures according to the direction of light movement. It becomes possible to have an efficient use of light, so that it is possible to improve the light efficiency.

When the carbon nanotube-containing transparent electrode is used in various devices, the thickness thereof is preferably adjusted in consideration of transparency. For example, it is possible to form a transparent electrode with a thickness of 5 to 500nm, when the thickness of the transparent electrode exceeds 500nm, transparency may be deteriorated and light efficiency may be poor, and when the thickness is less than 5nm, the sheet resistance is too low. It is not preferable because the film or carbon nanotubes may become uneven.

An example of a method of manufacturing the carbon nanotube-containing transparent electrode may be as follows.

First, carbon nanotube powder is dispersed in a solvent to form carbon nanotube ink, and then the carbon nanotube ink is coated on a substrate to obtain a carbon nanotube film, which is subjected to acid treatment, ultrasonication, or acid / ultrasound treatment. To prepare a transparent electrode comprising carbon nanotubes in which defects are generated.

The acid treatment used in the manufacturing process is performed by immersing the carbon nanotube powder or carbon nanotube film in an acid solution such as nitric acid, sulfuric acid, hydrochloric acid, phosphoric acid for a predetermined time, and adjusting the concentration or immersion time of the acid solution. By appropriately adjusting, it is possible to appropriately control the degree of defects on the surface of the carbon nanotubes.

The acid treatment time varies depending on the concentration of the acid solution used and the content of the carbon nanotubes to be treated. Preferably, the acid treatment time is performed for 1 minute to 100 hours. There is a possibility that the problem of cutting off or completely destroying may occur, or the defect may be insufficient, so that a sufficient improvement in conductivity may not be expected. The acid treatment as described above may be performed by simply dipping, but preferably, stirring may be performed.

As described above, an optimal embodiment has been disclosed in the drawings and specification. Although specific terms have been employed herein, they are used for purposes of illustration only and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. For example, in other cases, the number or configurations of the upper and lower electrode parts may be variously changed and modified without departing from the technical spirit of the present invention.

101: top plate
102: Lower plate
103: upper electrode portion
104: lower electrode portion

Claims (32)

At least two first plate electrode parts spaced apart in the first direction to be electrically separated from each other on the first plate; And
The first plate and the second plate spaced apart from each other in a second direction, the first plate electrode to correspond to each other to form the pair of electrode portions corresponding to each of the at least formed in the form facing each other At least two second plate electrode portions,
The pair of electrode parts facing each other when an electrical signal is input, the actuator performs a physical movement independently of each other.
The method of claim 1,
And the second plate is a lower plate having a thickness greater than or equal to the thickness of the upper plate or having a higher strength than the upper plate when the first plate is an upper plate.
The method of claim 1,
The performing of the physical exercise results in the creation of a haptic or sounding result.
The actuator of claim 1, wherein the first and second plates and the first and second plate electrode parts are formed of a substantially transparent material.
The actuator of claim 1, wherein the first and second plates and the first and second plate electrode parts are formed of a substantially flexible material.
The actuator of claim 1, wherein the actuator is configured to amplify the momentum of the first plate or the second plate by inputting the electrical signals so that the physical movements of the pair of electrode parts are the same.
According to claim 1, When the electrical signal is input so that the physical movement of the electrode pairs are different from each other by the tactile feedback or sound characteristics of the amplitude or frequency characteristics of the motion that is superimposed in the first plate or the second plate Actuator used for regeneration.
The beat wave obtained by the superposition effect in the first plate or the second plate is applied to the tactile feedback or sound reproduction by the physical movement of the pair of electrode portions having the same amplitude but different frequencies. Actuator used.
The actuator of claim 1, wherein the physical movement of the pair of electrode portions is generated only in a region in which the human body is in contact, thereby providing local tactile feedback for each of the plurality of movement regions.
The actuator of claim 9, wherein the pair of electrode portions are four pairs and provide the local tactile feedback for each of four movement regions upon keyboard input.
The actuator of claim 1, wherein the actuators transmit a feeling of vibrating movement in space by sequentially changing the operation intensity of the electrode pairs.
First and second plates of a thin film form spaced apart from each other and installed in parallel with each other;
A plurality of first plate electrode parts spaced apart in a first direction so as to be electrically separated from one surface of the first plate; And
A plurality of second plate electrodes disposed on one surface of the second plate and facing each other with respect to the plurality of first plate electrode portions to form pairs of electrodes corresponding to the plurality of first plate electrode portions, respectively. Includes wealth,
The pair of electrode parts facing each other when an electrical signal is input, the actuator performs a physical movement independently of each other.
The actuator of claim 12, wherein the plurality of first and second plate electrode portions are an application layer or an adhesion layer forming a planar polygonal shape as a conductive material.
13. The actuator of claim 12, wherein the plurality of first plate electrode portions are coated with an insulating material to prevent electrical shorts between the pair of electrode portions in accordance with the physical movement.
13. The actuator of claim 12, wherein the plurality of second plate electrode portions are coated with an insulating material to prevent electrical shorts between the pair of electrode portions in accordance with the physical movement.
The actuator of claim 12, wherein an spacer made of an elastic material is further disposed at an edge portion between the first and second plates to prevent an electrical short between the pair of electrode portions according to the physical movement.
The method of claim 13,
And the second plate is a lower plate thicker than the upper plate when the first plate is a top plate having a Young's modulus of 1 GPa or more.
The method of claim 13,
The performing of the physical exercise is for generating a tactile feeling or for generating sound.
The actuator of claim 12, wherein the first and second plates and the first and second plate electrode parts are formed of a substantially transparent material.
The actuator of claim 19, wherein the first and second plates and the first and second plate electrode parts are formed of a flexible material.
The actuator of claim 12, wherein the actuator is configured to amplify the momentum of the first plate or the second plate by inputting the electrical signals so that the physical movements of the pair of electrode parts are the same.
The tactile feedback or sound of claim 12, wherein input of the electrical signals is performed so that physical motions of the pair of electrode parts are different from each other. Actuator used for regeneration.
The pulse wave according to claim 12, wherein the physical motion of the pair of electrode parts is the same in amplitude but different in frequency so that the beat wave obtained by the superposition effect in the first plate or the second plate is used for tactile feedback or sound reproduction. Actuator used.
The actuator of claim 12, wherein the physical movement of the pair of electrode portions is generated only in a region in which the human body is in contact, thereby providing local tactile feedback for each of the plurality of movement regions.
The actuator of claim 12, wherein the pair of electrode portions are four pairs and provide the local tactile feedback for each of four movement regions upon keyboard input.
The actuator of claim 12, wherein the actuators are configured to sequentially change the operating intensity of the electrode pairs, thereby transmitting a feeling that the oscillating motion is moved in space.
The actuator of claim 12, wherein the actuator is utilized as a tactile feedback device or a transparent speaker that can be combined with a touch screen device.
13. The actuator of claim 12, wherein one side of the first plate is a bottom surface of the first plate.
13. The actuator of claim 12, wherein one side of the second plate is an upper surface of the second plate.
The actuator of claim 12, wherein the input of the electrical signal is applied independently to each other with respect to the pair of electrode portions facing each other.
The actuator of claim 12, wherein the first and second plate electrode parts are transparent electrodes made of carbon nanotubes.
The actuator of claim 12, wherein the first and second plate electrode parts are made of a stronger and harder material than the materials of the first and second plates.

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