JP5381372B2 - Tactile information device and electronic device using the same - Google Patents

Description

  The present invention relates to a tactile information device and an electronic apparatus using the same.

  Various types of information transmission in electronic devices such as mobile phones are performed through vision, hearing, and touch. For example, in a mobile phone, when information such as an incoming call is transmitted, the mobile phone may be vibrated, and the vibration may stimulate a user's sense of touch to transmit information such as an incoming call.

  As a vibration source at this time, Japanese Patent Application Laid-Open No. 11-65569 discloses a method using a piezoelectric element. Japanese Patent Application Laid-Open No. 10-506033 discloses a method of transmitting information by two-dimensionally stimulating a tactile sense using a plurality of vibrators.

  Various proposals have been made regarding piezoelectric elements. For example, Japanese Unexamined Patent Publication No. 2000-341939 discloses a piezoelectric transformer converter that can widen the level range of an input signal to a piezoelectric element. Japanese Patent Application Laid-Open No. 2004-146660 discloses an ion generator using a piezoelectric transformer. Japanese Patent Laying-Open No. 2006-81233 discloses a power supply device for driving a piezoelectric transformer. Further, JP 2007-34991 A discloses a touch panel display device that transmits information by vibrating a display panel using a piezoelectric actuator and applying vibration to a fingertip that is in contact with the display panel.

JP-A-11-65569 Japanese National Patent Publication No. 10-506033 JP 2000-341939 A JP 2004-146660 A JP 2006-81233 A JP 2007-34991 A

  However, in Patent Documents 1 and 2, a vibration source of a vibrator or a piezoelectric element is arranged in a casing of an electronic device such as a mobile phone, and information is transmitted to the user by vibrating the casing. Therefore, there were the following problems.

  That is, the vibration generated in the casing stimulates the user's sense of touch by vibrating the casing. The vibration of the casing means that various devices provided in the casing also vibrate. Therefore, the vibration energy transmitted to the user is reduced by the energy required to vibrate these casings and various devices provided therein. When vibration energy decreases, it becomes difficult to reliably transmit tactile information.

  Therefore, in order to transmit information reliably, large energy vibrations must be generated, but under the strong demand for low power consumption, miniaturization, high rigidity of the housing, etc. for recent electronic devices. It is not easy to generate a large energy vibration. For example, when the rigidity of the casing is increased, the energy required to vibrate the casing also increases. At this time, it is necessary for the vibration source to generate extra large energy vibration as much as the rigidity of the casing is increased. However, in order to generate large energy vibrations, power consumption at the vibration source increases and the vibration source becomes larger.

  Therefore, when such a vibration source is used in an electronic device, it becomes difficult to satisfy the demands for reducing the power consumption and size of the electronic device. Note that the above-described problem cannot be solved even if various proposals according to Patent Documents 3 to 6 are added to the configurations of Patent Documents 1 and 2 that transmit tactile information by vibrating the housing.

  Therefore, an object of the present invention is to provide a tactile information device that is small in size and has low power consumption and can reliably transmit tactile information, and an electronic apparatus using the tactile information device.

  In order to solve the above problems, a haptic information device according to the present invention includes a haptic terminal provided on a support, a haptic information generator that outputs a haptic signal corresponding to an input signal, a haptic information generator, and a haptic terminal. And a switch portion that opens and closes the conduction.

  In addition, the electronic device outputs a haptic signal corresponding to an input signal, a tactile terminal that is exposed on the outer surface of the casing, is provided on the outer surface of the casing, and is touched by a user. A tactile information generator, and a tactile information device including a switch unit that opens and closes conduction between the tactile information generator and the tactile terminal.

  According to the present invention, tactile information can be reliably transmitted with small size and low power consumption.

1 is a perspective sectional view of a haptic information device according to a first embodiment of the present invention. It is a perspective view of a mobile telephone provided with the tactile information generator concerning the 2nd Embodiment of this invention, (a) is a perspective view of the surface side, (b) is a perspective view of the back side. It is arrow sectional drawing along the AA line in Fig.2 (a). It is a block diagram of the haptic information device concerning a 2nd embodiment. It is a perspective view of the circuit board of the tactile information device concerning a 2nd embodiment. It is a perspective view of the piezoelectric transformer which has the flat input electrode concerning 2nd Embodiment, and a common electrode. It is a perspective view of the piezoelectric transformer which has an interdigital input electrode and a common electrode on both surfaces of the piezoelectric material concerning 2nd Embodiment. It is a perspective view of the piezoelectric transformer which has an interdigital input electrode and a common electrode on one side of the piezoelectric material concerning a 2nd embodiment. FIG. 7 is a diagram illustrating a manufacturing procedure of a piezoelectric transformer by a powder deposition method according to a second embodiment, where (a) shows a base electrode forming procedure, (b) shows a piezoelectric material forming procedure, and (c) shows an electrode forming procedure. . It is a perspective view of the vibrator provided with the direct-current motor used for verification of the effect of a 2nd embodiment.

  A first embodiment of the present invention will be described. FIG. 1 is a perspective sectional view of a haptic information device 2 according to the first embodiment. The tactile information device 2 includes a tactile terminal 4, a tactile information generator 5, and a switch unit 6. The haptic information generator 5 outputs a haptic signal corresponding to the input signal input to the haptic information generator 5. The tactile terminal 4 is provided on the support 3 and serves as a contact terminal for transmitting tactile information to the user. The switch unit 6 opens and closes conduction between the tactile information generator 5 and the tactile terminal 4.

  When the user touches the tactile terminal 4 with the switch unit 6 conducting between the tactile information generator 5 and the tactile terminal 4 or when the user contacts the tactile terminal 4, the switch unit 6 operates the tactile information generator. When 5 is connected to the tactile terminal 4, a tactile signal flows from the tactile information generator 5 into the user's body via the tactile terminal 4 to stimulate the user's tactile sense. This stimulation becomes tactile information transmission. Therefore, information can be transmitted reliably.

  Further, since the tactile information is directly transmitted to the user, for example, energy for vibrating the housing or the like, which is necessary when information is transmitted by vibrating the housing, becomes unnecessary. Accordingly, it is possible to reduce the size and power consumption of the tactile information device and the electronic device using the tactile information device.

  Next, a second embodiment of the present invention will be described. 2A and 2B are perspective views of the mobile phone 10 including the tactile information device according to the second embodiment. FIG. 2A is a front perspective view and FIG. 2B is a rear perspective view. FIG. 3 is a cross-sectional view taken along line AA in FIG. In the state where the user holds and uses the mobile phone, the surface of the mobile phone 10 facing the user side is the front side, and the side that touches the user's palm is the back side. In the following description, the mobile phone 10 is described as an example of the electronic device, but other electronic devices such as a portable information terminal, a game device, and a personal computer other than the mobile phone may be used.

  The cellular phone 10 includes upper and lower casings 12a and 12b. As shown in FIG. 3, a main circuit 14 that is a main part of the mobile phone 10 is provided in an internal space 13 formed by the upper and lower casings 12a and 12b, and a tactile information device 20 is also provided. On the outer surface 12d side of the upper housing 12a, there are provided a display 15 for displaying various information such as a telephone number and a plurality of keys 16 for inputting the telephone number, etc., which constitute a user interface. A plurality of tactile terminals 27 for transmitting tactile information to a user, which will be described later, are provided on the outer surface 12c side of the (support) 12b.

  FIG. 4 is a block diagram of the haptic information device 20. The tactile information device 20 includes a plurality of tactile signal generation units 29 and a control unit 28. The tactile signal generator 29 includes a piezoelectric transformer (tactile information generator) 24, a rectifier 25, a switch unit 26, and the above-described tactile terminal 27 that a user contacts. And the tactile terminal 27 is provided in the lower housing | casing 12b, and the piezoelectric transformer 24, the rectification | straightening part 25, the switch part 26, and the control part 28 are mounted in the circuit board.

  FIG. 5 is a perspective view of the circuit board 30. As shown in FIG. 5, the tactile signal generator 29 including the piezoelectric transformer 24, the rectifier 25, and the switch 26 is mounted on the circuit board 30 at predetermined intervals in the vertical and horizontal directions.

  As shown in FIG. 3, the tactile terminal 27 includes an embedded portion 27a and a stylus portion 27b. The stylus part 27b and the embedded part 27a are electrically connected. The stylus part 27b is a terminal for the user's palm or the like to contact. Such a stylus portion 27b is provided so as to be flush with the outer surface 12c of the lower housing 12b or to protrude from the outer surface 12c by a predetermined amount. The embedded portion 27 a is embedded through the lower housing 12 b and connected to the output electrode of the piezoelectric transformer 24 via the switch portion 26 and the rectifying portion 25. In the following description, the case where the tactile terminal 27 is provided on the lower housing 12b will be described as an example. However, for example, the side of the housing of the mobile phone and the touch on the human body such as hands and legs. Any place to do.

  FIG. 6 is a perspective view of the piezoelectric transformer 24. The piezoelectric transformer 24 includes a strip-shaped piezoelectric ceramic (hereinafter referred to as a piezoelectric material) 31, an input electrode 32, an output electrode 33, and a common electrode 34 formed on the piezoelectric material 31. The piezoelectric material 31 is divided into a primary side region 31a polarized in the thickness direction and a secondary side region 31b polarized in the longitudinal direction. In FIG. 6, the polarization direction in the primary side region 31a is indicated by an arrow P1, and the polarization direction in the secondary side region 31b is indicated by an arrow P2.

  The input electrode 32 and the common electrode 34 are provided so as to sandwich the piezoelectric material 31 in the thickness direction of the piezoelectric material 31 in the primary region 31a. The output electrode 33 is provided on the end surface 31c of the piezoelectric material 31 perpendicular to the polarization direction indicated by the arrow P2 in the secondary region 31b. In addition to the end face 31c of the piezoelectric material 31, the output electrode 33 may be formed in a region on the end face 31c side, for example, on the surface of the piezoelectric material 31 on which the input electrode 32 is provided.

  When an AC input signal is applied between the input electrode 32 and the common electrode 34, mechanical vibration is generated in the piezoelectric material 31 due to the piezoelectric effect. Due to this mechanical vibration, an inverse piezoelectric effect is generated in the piezoelectric material 31, and an electric signal (output signal) is generated between the output electrode 33 and the common electrode 34. The output signal generated between the output electrode 33 and the common electrode 34 can have a voltage value larger than that of the input signal. That is, the input signal can be boosted by the piezoelectric transformer 24. The input signal is output from the control unit 28.

  Note that the piezoelectric transformer is not limited to the configuration shown in FIG. 6, and may have a configuration as shown in FIG. 7 or 8, for example. The structures of the input electrode and the common electrode of the piezoelectric transformers 24B and 24C shown in FIGS. 7 and 8 are different from the structures of the input electrode and the common electrode of the piezoelectric transformer 24 shown in FIG. That is, the input electrode 32b and the common electrode 34b shown in FIGS. 7 and 8 are formed in a crossed finger shape (fork shape) and are provided so as to fit into each other.

  The piezoelectric transformer 24B shown in FIG. 7 is provided with an input electrode 32b and a common electrode 34b on both surfaces of the primary region 31a of the piezoelectric material 31, respectively. On the other hand, in the piezoelectric transformer 24C shown in FIG. 8, the input electrode 32b and the common electrode 34b are provided only on one surface of the primary region 31a of the piezoelectric material 31, and no electrode is provided on the other surface. . Regardless of the configuration, the input signal applied to the input electrode 32b and the common electrode 34b is converted into mechanical vibration in the piezoelectric material 31, and this mechanical motion is converted into an electrical signal to output the output electrode. 33 and the common electrode 34b. The polarization direction of the primary region 31a in the piezoelectric transformers 24B and 24C shown in FIGS. 7 and 8 is a direction from the input electrode 32b toward the common electrode 34b.

  As shown in FIG. 4, the output signal from the piezoelectric transformer 24 is input to the rectifying unit 25. The rectifying unit 25 rectifies the output signal and outputs it to the switch unit 26. That is, since the output signal output from the piezoelectric transformer 24 is an AC signal, the rectifier 25 rectifies this into a DC signal and outputs it. This rectified output signal is referred to as a tactile signal.

  Since the rectifier 25 has a self-inductance and a capacitance such as a junction capacitance, even if spike noise or the like is included in a signal input to the rectifier 25, the spike noise or the like is not detected in the self-inductance or junction. Attenuates due to capacitance. Therefore, the tactile signal is a signal from which spike noise or the like is removed or attenuated. Of course, a noise filter or the like may be provided separately.

  The switch unit 26 operates based on an open / close control signal from the control unit 28 to control conduction between the rectifying unit 25 and the tactile terminal 27. When the switch unit 26 is “ON”, the tactile terminal 27 and the rectifying unit 25 are electrically connected. When the switch unit 26 is “OFF”, the tactile terminal 27 is connected to the ground. The reason why the tactile terminal 27 is connected to the ground when the switch unit 26 is “OFF” is to discharge static electricity accumulated in the human body via the tactile terminal 27.

  Next, a first embodiment of an information transmission confirmation experiment of tactile information in the above-described tactile information device will be described. The information transmission confirmation experiment consists of production of different types of piezoelectric transformers of types 1 to 4, production of a tactile information device using the produced piezoelectric transformer, confirmation of boosting characteristics of an input signal by the tactile information device, and confirmation of tactile information by a subject or the like. Confirmed transmission.

  First, as shown in FIG. 3, a box-shaped housing having a length of 100 mm, a width of 50 mm, and a height of 20 mm, which simulates the lower housing 12b of the mobile phone 10, was formed using an epoxy plate having a thickness of 2 mm. . A copper conductor plated with gold by a gold plating method was provided on the surface of the epoxy plate (surface of the housing), and a connection conductor penetrating the epoxy plate and electrically connected to the copper conductor was provided. The gold-plated copper conductor corresponds to the stylus portion 27 b of the tactile terminal 27, and the connection conductor corresponds to the embedded portion 27 a of the tactile terminal 27. In this manner, a haptic information device was manufactured by mounting the rectifying unit 25, the switch unit 26, and a piezoelectric transformer described later on the epoxy plate having the haptic terminal 27.

<Production of piezoelectric transformer>
Type (TYPE) 1 to Type 3 piezoelectric transformers were formed by providing an input electrode, a common electrode, and an output electrode corresponding to FIGS. 6 to 8 on a piezoelectric material of the same type and size. The type 4 piezoelectric transformer was formed by providing the input electrode, common electrode, and output electrode shown in FIG. 6 on a piezoelectric material formed by a method different from that of type 1 to type 3.

  That is, the piezoelectric material of the type 1 to type 3 piezoelectric transformer was formed by sintering a material containing lead zirconate titanate into a block shape and cutting the sintered body into strips. The dimensions (length, width, thickness) of the piezoelectric material and the electrode are defined as follows. That is, the direction from the input electrode to the output electrode is the length direction, and the direction perpendicular to the surface of the piezoelectric material provided with the input electrode is the thickness direction. A direction perpendicular to the length direction and the thickness direction is defined as a width direction. According to this definition, the dimensions of the above-described strip-shaped piezoelectric material are, as shown in FIG. 6, the length W1 is 10 mm, the width W2 is 3 mm, and the thickness W3 is 0.1 mm.

  Then, the flat input electrode 32 and the common electrode 34 shown in FIG. 6 were formed on one piezoelectric material. Each electrode was formed by sputtering an electrode material containing silver-palladium alloy or platinum. The dimensions of the input electrode 32 and the common electrode 34 are 5 mm in length, 3 mm in width, and 0.5 μm in thickness, and the dimensions of the output electrode 33 are 0.5 mm in length, 3 mm in width, and 0.1 mm in thickness. The piezoelectric transformer thus formed is referred to as a type 1 piezoelectric transformer.

  Further, on the upper and lower surfaces of another piezoelectric material, as shown in FIG. 7, a strip-like input electrode 32b and a common electrode 34b were formed in a cross finger shape, and an output electrode 33b was formed. Each electrode was formed by sputtering an electrode material containing silver-palladium alloy or platinum. The dimensions of the input electrode 32b and the common electrode 34b are 0.2 mm in length (band width), 3 mm in width, and 0.5 μm in thickness. The dimensions of the output electrode 33 are 0.5 mm in length, 3 mm in width, and thickness. The thickness is 0.1 mm. The piezoelectric transformer thus formed is referred to as a type 2 piezoelectric transformer.

  Further, an input electrode 32b and a common electrode 34b as shown in FIG. 8 were formed on one surface of another piezoelectric material. Each electrode was formed by sputtering an electrode material containing silver-palladium alloy or platinum. The dimensions of the input electrode 32b and the common electrode 34b are 0.2 mm in length (band width), 3 mm in width, and 0.5 μm in thickness. The dimensions of the output electrode 33 are 0.5 mm in length, 3 mm in width, and thickness. The thickness is 0.1 mm. The piezoelectric transformer thus formed is referred to as a type 3 piezoelectric transformer.

  These type 1 to type 3 piezoelectric transformers are polarized and then bonded to an epoxy board using an epoxy adhesive, and tactile terminals, switches, rectifiers, piezoelectric transformers are mounted, and wiring is provided. I went to make a tactile information device. Hereinafter, tactile information devices manufactured using type 1 to type 3 piezoelectric transformers are referred to as first to third tactile information devices.

  Next, a type 4 piezoelectric transformer was fabricated using a powder deposition method. 9A and 9B are diagrams showing a manufacturing procedure of a type 4 piezoelectric transformer by a powder deposition method. FIG. 9A shows a base electrode forming procedure, FIG. 9B shows a piezoelectric material forming procedure, and FIG. Indicates an electrode forming procedure. First, as shown in FIG. 9A, base electrodes 36 a and 39 a were formed on the epoxy plate 35. The base electrode 36 a corresponds to a part of the output electrode 33 illustrated in FIG. 6, and the base electrode 39 a corresponds to the common electrode 34. The base electrodes 36a and 39a were formed by sputtering an electrode material containing silver-palladium alloy, platinum or the like by a sputtering method using a mask 40 made of a stainless steel plate or the like.

  Then, as shown in FIG. 9 (b), a powder of a lead zirconate titanate-based piezoelectric material or a slurry containing this powder is jetted from an injector 38 at a high speed from above the base electrodes 36a, 39a. A material 37 was formed. At this time, a mask 41 made of a stainless steel plate or the like was used so that the piezoelectric material was sprayed onto a predetermined region. It was confirmed from the observation of the structure with a microscope that the injected piezoelectric material was sintered by the impact energy at the time of deposition.

  Next, as shown in FIG. 9 (c), an output electrode 36b is formed by sputtering an electrode material containing silver-palladium alloy, platinum, or the like by sputtering using a mask 42 made of stainless steel plate or the like. An electrode 39b was formed. At this time, the mask 42 has a width dimension T1 of the area 42a where the output electrode 36b is formed, a width dimension T2 of the area 42b where the input electrode 39b is formed, and a width dimension T3 of the piezoelectric material 37 such that T2 <T3 <T1. Is set to

  With such dimensions, the output electrode 36b is also formed on both sides (thickness side surfaces) of the piezoelectric material 37 so as to be electrically connected to the previously formed base electrode 36a. . Thereby, one output electrode 36 can be formed. On the other hand, since the input electrode 39b is not formed on both sides (side surfaces on the thickness side) of the piezoelectric material 37, it is formed without being in contact with the base electrode (common electrode) 39a.

  In this way, after each electrode is formed, polarization processing is performed to manufacture a type 4 piezoelectric transformer. Thereafter, a rectifying unit 25, a switch unit 26, and the like are provided on the epoxy plate 35, and wiring is performed. A tactile information device was manufactured.

  The input electrode 39b and the common electrode 39a have a plate-like electrode structure as shown in FIG. 6, but a slit is formed in the plate-like electrode by a blast method or the like, as shown in FIGS. It is also possible to use such an interdigitated electrode.

  By the way, when a piezoelectric material is formed by such a powder deposition method, a sintered body is manufactured like a piezoelectric material in a type 1 to type 3 piezoelectric transformer, and then the sintered body is cut out to obtain a piezoelectric material. The manufacturing process can be omitted. That is, manufacturing time and manufacturing cost can be shortened. In this example, the type 4 piezoelectric transformer could be manufactured in 1/10 of the time required to manufacture the type 1 to type 3 piezoelectric transformer.

<Tactile information transmission test>
Next, various tests described below were performed using the first to fourth tactile information devices. First, the step-up characteristics of type (TYPE) 1 to 4 piezoelectric transformers were examined. Table 1 shows the result of observing the peak value of the output signal with an oscilloscope when an input signal having a period of 1 msec and a peak voltage of 1 V is applied to the input electrode of each piezoelectric transformer. At this time, the switch unit was set to “OFF”. Therefore, the rectifying unit and the tactile terminal are not conductive. It can be seen from Table 1 that the output signals of the type 1-4 piezoelectric transformers show substantially the same value.

  Next, a bodily sensation test of tactile stimulation using the first to fourth tactile information devices was performed on 10 healthy subjects. In the bodily sensation test, “ON” and “OFF” were repeated at intervals of 10 msec with the subject's palm and the tactile terminal in contact with each other. At this time, the test was performed by asking whether or not the subject sensed a tactile stimulus. As a result, all subjects sensed tactile stimuli. At this time, the power consumption in the first to fourth tactile information devices was 0.05W.

  Next, in order to investigate whether the effect by the 1st-4th tactile information apparatus is a peculiar effect, it compared with the tactile stimulus by a vibrator as shown in FIG. The tactile stimulation by the vibrator is used in the current mobile phone and the like.

  In FIG. 10, an eccentric weight 51 of 0.1 g is attached to the rotating shaft of a DC motor 50 having a length of 10 mm and a diameter of 3 mm. A DC motor 50 was mounted on the epoxy plate 52, and a drive voltage of 5V, which is the maximum input voltage of the DC motor 50, was applied at 10 msec intervals. The power consumption at this time was 2 W, which was 40 times that of the first to fourth tactile information devices. And the bodily sensation test of tactile stimulation was performed with respect to 10 healthy subjects. As a result, only one subject sensed the tactile stimulus, and the other subjects could not sense the tactile stimulus. Therefore, it is confirmed that the transmission characteristics of the tactile information by the first to fourth tactile information devices according to the present embodiment with low power consumption and small size have a unique effect that surpasses the transmission characteristics of the tactile information by the vibrator. did it.

  Further, using the first tactile information device of the type 1 piezoelectric transformer, the peak voltage of the output signal when the peak voltage of the input signal was changed to 1V, 1.5V, and 3V was examined. Table 2 shows test results showing the relationship between the peak voltage of the input signal and the peak voltage of the output signal. From Table 2, it was confirmed that when the peak voltage of the input signal increases, the peak voltage of the output signal also increases.

  In addition, using this tactile information device, a tactile stimulus test was performed on 10 subjects when the peak voltage of the input signal was changed at 1V, 1.5V, and 3V. As a result, all subjects sensed an increase in tactile stimulation proportional to the peak voltage of the input signal.

  As described above, it has been confirmed that tactile information can be transmitted using the tactile information device. Next, whether or not tactile information can be transmitted in a multidimensional manner was examined. For this purpose, a cellular phone having nine piezoelectric transformers 24 (three vertical and three horizontal) arranged as shown in FIG. Hereinafter, a description will be given with reference to FIG.

  First, an input signal having a period of 1 msec and a peak voltage of 1 V was applied to the piezoelectric transformer, and the tactile signal appearing at the tactile terminal at that time was observed with an oscilloscope to measure the peak voltage. Table 3 shows the measured peak voltage. In Table 3, the coordinates (X, Y) of the tactile terminals 27 are the coordinates of the tactile terminals 27 when the width direction of the mobile phone is the X coordinate and the longitudinal direction is the Y coordinate in FIG. Show. From this result, it can be seen that the nine tactile terminals 27 output tactile signals of substantially the same level.

  Next, 10 healthy subjects were collected, and (1,1), (2,1), (3,1) with the mobile phone held so that the palm of each subject and the tactile terminal were in contact with each other. The switch sections connected to the tactile terminals 27 were sequentially operated at intervals of 10 msec. The peak voltage of the input signal is 1V. As a result, all the subjects sensed a tactile stimulus moving in the X direction. Similarly, the switches connected to the (1, 1), (1, 2), (1, 3) tactile terminals 27 were sequentially operated at intervals of 10 msec. As a result, all subjects sensed a tactile stimulus moving in the Y direction. This means that visual information can be transmitted in a multidimensional manner. In other words, it was confirmed that various information transmission becomes possible by stimulating tactile sensations distributed not only through haptic sense but also spatially distributed.

  Further, the same test was performed by setting the peak voltage of the input signal to 3 V and operating the switch unit at intervals of 10 msec. As a result, all the subjects sensed that 3V received a stronger tactile stimulus than 1V. Accordingly, even one tactile information device can transmit various information according to the strength of tactile stimulation.

  From the above test, it was proved that various tactile information can be reliably transmitted by a small-sized and low power consumption tactile information device and an electronic apparatus using the tactile information device.

DESCRIPTION OF SYMBOLS 3 Support body 4,27 Tactile terminal 5 Tactile information generator 6,26 Switch part 10 Mobile phone 12c Outer surface 12a Upper housing | casing 12b Lower housing | casing (support body)
20 Tactile Information Device 24, 24B, 24C Piezoelectric Transformer (Tactile Information Generator)
25 Rectifier 28 Controller 31 Piezoelectric material 32, 32b Input electrode 33, 33b Output electrode 34, 34b Common electrode

Claims (5)

A plurality of tactile signal generators;
With control
With
The plurality of tactile signal generators are
A tactile terminal provided on the support,
A haptic information generator that outputs a haptic signal corresponding to the input signal;
A switch unit for controlling conduction between the tactile information generator and the tactile terminal;
Each with
The tactile information generator
A piezoelectric transformer that boosts and outputs the input signal;
A rectification unit that rectifies a signal output from the piezoelectric transformer and outputs the signal as the tactile signal;
With
The control unit individually controls the opening / closing of all the switch units.
Tactile information device characterized by The tactile information device according to claim 1, wherein the piezoelectric material is formed by jetting a material containing piezoelectric material powder onto the support. A housing,
An electronic device main body housed in the housing;
A tactile information device,
The tactile information device includes:
With multiple tactile signal generators
With control
With
The plurality of tactile signal generators are
A tactile terminal that is exposed on the outer surface of the housing and is touched by a user;
A haptic information generator that outputs a haptic signal corresponding to the input signal;
A switch unit that opens and closes conduction between the tactile information generator and the tactile terminal;
Each with
The tactile information generator
A piezoelectric transformer that boosts and outputs the input signal;
A rectifying unit for rectifying a signal output from the piezoelectric transformer;
With
The control unit individually controls the opening / closing of all the switch units.
Electronic equipment characterized by The tactile information generator, the switch unit, and a control unit are provided inside the housing.
The electronic device according to claim 3. 5. The electronic apparatus according to claim 3, wherein the piezoelectric material is formed by jetting a material containing piezoelectric material powder onto the support.

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