JP2012108949A - Substrate supporting vibration structure, input device with tactile function, and electronic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a highly rigid vibration substrate, and to secure high reliability as to vibration transmission property, despite using attitude of the vibration substrate.SOLUTION: The vibration substrate includes: columnar members fixed between display means and a touch panel (input detecting means); and a piezoelectric actuator having a vibration action part and central electrodes and provided in prescribed positions between the display means and the touch panel. The vibration action part and the central electrodes are provided along a direction to layer the touch panel and the display means. This constitution can provide a highly rigid vibration housing that has a property capable of restraining a dimensional change low with respect to a bending force and a torsional torque.

Description

  The present invention is suitable for application to an information processing device, a mobile phone, an information portable terminal device, etc. that returns a tactile sensation to an operating body when information is input by selecting an icon or the like from a display screen for selecting input items. The present invention relates to a substrate support vibration structure, an input device with a tactile function, and an electronic apparatus.

  Specifically, a piezoelectric element is provided at a predetermined position of a gap member provided in a columnar shape and / or a longitudinal shape between two substrates and fixed, and the vibration supporting portion and the vibration acting portion of the piezoelectric element are arranged in the substrate supporting direction. It is possible to provide a rigid vibration substrate having a property of suppressing the dimensional change with respect to bending force and torsional force, and when the piezoelectric element is vibrated, the vibration substrate is used. It is designed to ensure high reliability in terms of vibration transmission regardless of the posture.

  In recent years, users (operators) have taken various contents into portable terminal devices such as mobile phones and PDAs (Personal Digital Assistants) and used them. These portable terminal devices are provided with an input device. In many cases, a keyboard, an input means such as a JOG dial, a touch panel combined with a display unit, or the like is used as the input device.

  An input / output device combined with a piezoelectric actuator has also been developed. A piezoelectric actuator has two or more layers with different strain amounts, or a piezoelectric element and a non-piezoelectric element, and when a vibration control voltage is applied to the piezoelectric element of this bonded body, The bending deformation of the resulting bonded body is used dynamically (vibrating body function). On the contrary, it is known that a voltage is generated when a force is applied to the piezoelectric element (force detection sensor function).

  In many cases, so-called bimorph actuators, unimorph actuators, disk actuators (collectively these are simply referred to as piezoelectric actuators) and the like are used as actuators. There are two types of piezoelectric actuators, one with a multilayer structure and one with a single layer structure. In general, a piezoelectric actuator with a single layer structure has a high driving voltage of 50 V or more and is not suitable for electronic devices, particularly mobile devices. is there.

  With regard to an electronic device including this type of piezoelectric actuator, Patent Document 1 discloses an input / output device and an electronic device. According to this electronic apparatus, an input / output device having a bimorph type piezoelectric actuator and a touch panel is provided. The piezoelectric actuator is arranged between the display device and the touch panel, and uses different haptics through the touch panel according to the type of vibration control information. Feedback is provided to the person. The input / output device has a touch panel support structure in which a piezoelectric actuator is mounted on a support frame.

  FIG. 18 is a cross-sectional view showing a touch panel supporting vibrator 500 according to a conventional example. A touch panel supporting vibrator 500 shown in FIG. 18 is found in Patent Document 1, and the display unit 29 and the touch panel 24 are arranged on a main body substrate 501. A component mounting space 102 is set between the touch panel 24 and the display means 29. Piezoelectric actuators 125 are respectively mounted at the four corner positions of the non-display area around the display area of the display means 29 in the component mounting space 102. Below each piezoelectric actuator 125, support portions 106 and 107 forming vibration support points are provided.

  In this way, the four piezoelectric actuators 125 are arranged at the four corners on the display means 29. In the center of the upper portion of the piezoelectric actuator 125, an action portion 108 that forms a vibration action point is provided. The action part 108 is a separate part and is affixed to the upper center of the piezoelectric actuator so that the action part 108 comes into contact with the touch panel 24.

  The touch panel 24 is supported by the four action portions 108 described above, and the upper periphery of the touch panel 24 is pressed by the panel pressing frame 104 with the dust seal 105 interposed therebetween. The panel retainer frame 104 has an inverted portion with an L-shaped cross section at the top. The panel pressing frame 104 is fixed to the main body substrate 501 with screws 109, for example. A wiring 103 is connected to the piezoelectric actuator 125, and the piezoelectric actuator 125 is pulled out from an opening formed in the panel pressing frame 104.

  When a vibration control voltage is supplied to the four piezoelectric actuators 125 via the wiring 103 with such a touch panel supporting vibration body 500, vibration can be transmitted to the touch panel 24.

Japanese Patent Laying-Open No. 2004-94389 (page 9, FIG. 4)

  By the way, the structure of the touch panel supporting vibrator 500 as disclosed in Patent Document 1 is adopted in an information processing apparatus with a tactile input function according to a conventional example, a mobile phone, an information portable terminal device (mobile device), and the like. If you do, there are the following problems.

i. When the touch panel support vibrator 500 is used while being held in a horizontal position, the touch panel 24 is supported by the four piezoelectric actuators 125. However, when the touch panel support vibrating body 500 is used while being held in a vertical posture or an oblique posture, the touch panel 24 must be supported by the adhesive force of the support portions 106 and 107, the action portion 108, and the like.

  For this reason, when the touch panel 24 is displaced with respect to the display unit 29 or the adhesive force is insufficient, the piezoelectric actuator 125 released from the touch panel 24 and the display unit 29 moves in the component mounting space 102. There is a fear.

ii. Moreover, according to the structure of the touch panel supporting vibration body 500 as in Patent Document 1, the two support portions 106 and 107 that form the fulcrum of the piezoelectric actuator 125 are separate parts, and these separate parts are used as a support frame or a piezoelectric actuator. It must be attached to 125 etc. individually via an adhesive member (adhesive material).

  Moreover, the action part 108 which forms the action point of the piezoelectric actuator 125 must be pasted between the center upper part and the touch panel 24 via an adhesive member. There is a problem that a large number of such separate parts must be prepared, and further, the above-described joining process reduces the workability when mounting the piezoelectric body, and it takes time to mount the piezoelectric actuator 125.

iii. In this way, when trying to adopt the structure of the touch panel supporting vibrator 500 in a mobile device or the like, including the case where the posture of the touch panel 24 cannot be specified, due to the structure in which the touch panel 24 cannot be securely held on the main body substrate 501, There is a concern that it greatly hinders the improvement of the reliability of electronic devices with a tactile input function. In particular, the above-mentioned problem becomes significant in an electronic device in which vibration is constantly applied from the outside, such as an in-vehicle device.

  Therefore, the present invention solves such a conventional problem, and makes it possible to provide a vibration substrate having a high rigidity, and has high reliability in terms of vibration transmission regardless of the posture in which the vibration substrate is used. It is an object of the present invention to provide a substrate support vibration structure, an input device with a tactile function, and an electronic apparatus that can ensure the above.

  The substrate support vibration structure of the present invention is a structure that vibrates while supporting a substrate, and includes a plurality of columnar members fixed between the first substrate and the second substrate, the first substrate, and the second substrate. Provided with a piezoelectric element having a vibration support portion and a vibration action portion. The vibration support portion is bonded to one of the first and second substrates, the vibration action portion is bonded to the other substrate, and the vibration support portion and the vibration action portion are stacked to stack the first and second substrates. It is provided along the direction.

  In the substrate support vibration structure of the present invention, the substrate supports and vibrates, and has a plurality of columnar members between the first substrate and the second substrate. A piezoelectric element is provided at a predetermined position between the first substrate and the second substrate. In the piezoelectric element, the vibration support portion and the vibration action portion are arranged in a thickness direction in which the first and second substrates are stacked. It is provided along.

  Accordingly, it is possible to provide a vibration housing in which the rigid first substrate and the second substrate, which have the property of suppressing a dimensional change with respect to bending force and torsional force, are fixed. As a result, when the piezoelectric element is vibrated, it is possible to ensure high reliability with respect to vibration transferability regardless of the posture in which the vibration housing is used.

  An input device with a tactile function according to the present invention is an input device with a tactile function that presents a tactile sensation to an operating body during an information input operation, and includes input detection means and display means provided below the input detection means. And a substrate support vibration structure for presenting a tactile sensation to the operating body based on an input operation of the input detection means, wherein the substrate support vibration structure is a structure that supports and vibrates the input detection means, A plurality of columnar members fixed between the display means and a piezoelectric element provided at a predetermined position between the input detection means and the display means and having a vibration support portion and a vibration action portion. The vibration support part is joined to one of the input detection means and the display means, the vibration action part is joined to the other, and the vibration support part and the vibration action part are provided along the thickness direction in which the input detection means and the display means are stacked. It has been.

  According to the input device with a tactile function according to the present invention, since the substrate support vibration structure according to the present invention is provided, the vibration casing in which the rigid input detection means and the display means are fixed based on the input operation. The tactile sensation can be presented to the operating body.

  Therefore, when the piezoelectric element is vibrated, it is possible to ensure high reliability with respect to vibration transmission performance regardless of the posture in which the vibration housing is used.

  An electronic device according to the present invention is an electronic device with a tactile input function that presents a tactile sensation to an operating body during an information input operation, and includes an input detection means, a display means provided below the input detection means, and an input A substrate support vibration structure having a substrate support vibration structure that presents a tactile sensation to the operating body based on an input operation of the detection means, and the substrate support vibration structure is a structure that vibrates while supporting the substrate; A plurality of columnar members fixed between the detection means and the display means, and a piezoelectric element provided at a predetermined position between the input detection means and the display means and having a vibration support portion and a vibration action portion. The vibration support part is joined to one of the input detection means and the display means, the vibration action part is joined to the other, and the vibration support part and the vibration action part are provided along the thickness direction in which the input detection means and the display means are stacked. It has been.

  According to the electronic device of the present invention, since the input device with a tactile function according to the present invention is provided, based on the input operation, the operation is performed from the vibration housing in which the rigid input detection unit and the display unit are fixed. The tactile sense can be presented to the body.

  Therefore, when the piezoelectric element is vibrated, it is possible to ensure high reliability with respect to vibration transmission performance regardless of the posture in which the vibration housing is used.

  According to the substrate supporting vibration structure of the present invention, a plurality of columnar portions are provided between the first substrate and the second substrate, and the piezoelectric element is provided at a predetermined position between the first and second substrates. The vibration support portion and the vibration action portion of the piezoelectric element are provided along the thickness direction in which the first substrate and the second substrate are stacked.

  With this configuration, it is possible to provide a vibrating housing in which the first substrate and the second substrate having a high rigidity, which has a property of suppressing a dimensional change with respect to a bending force and a twisting force, are fixed. Therefore, when the piezoelectric element is vibrated, it is possible to ensure high reliability with respect to vibration transmission performance regardless of the posture in which the vibration housing is used.

  According to the input device and electronic device with a tactile function according to the present invention, since the substrate support vibration structure according to the present invention is provided, the input detection means and the display means are fixed with rigidity based on the input operation. A tactile sensation can be presented to the operating body from the vibration casing.

  With this configuration, when the piezoelectric element is vibrated, it is possible to ensure high reliability in terms of vibration transmission regardless of the posture in which the vibration housing is used. In particular, vibrations generated by the piezoelectric elements generated in the substrate support vibration structure can be applied to electronic devices such as mobile devices and vehicle-mounted devices that are highly likely to receive vibrations and shocks as external forces.

It is a perspective view which shows the structural example of the touchscreen support vibration body 100 as a 1st Example. It is an expanded sectional view which shows the lamination example of the film-form piezoelectric material which concerns on the piezoelectric actuator 25a. (A) And (B) is the top view which shows the structural example of the piezoelectric actuator 25a, and X1-X2 arrow sectional drawing. 5 is a process diagram illustrating an example of forming a touch panel supporting vibration body 100. FIG. It is a perspective view which shows the structural example of the touchscreen support vibration body 200 as a 2nd Example. 5 is a process diagram illustrating an example of forming a touch panel supporting vibration body 200. FIG. It is a top view which shows the structural example (the 1) of the touchscreen support vibration body 300 as a 3rd Example. FIG. 10 is a diagram showing a structural example (No. 2) of the touch panel supporting vibration body 300; 5 is a process diagram illustrating an example of forming a touch panel supporting vibration body 300. FIG. It is a perspective view which shows the structural example of the mobile telephone 400 with a tactile sense input function as a 4th Example. It is an assembly drawing which shows the structural example of the touchscreen support vibrating body 300 which concerns on the input device 90 with a tactile function. It is a perspective view showing a structural example of the input device 90. It is a block diagram which shows the structural example of the control system of the mobile telephone 400 with a tactile sense input function. (A) And (B) is a wave form diagram which shows the example of the vibration pattern which concerns on tactile sense "A" and "B". (A) And (B) is a figure which shows the example of a relationship between the applied pressure F and a vibration pattern (the 1). (A) And (B) is a figure which shows the example (the 2) of a relationship between the applied pressure F and a vibration pattern. It is a flowchart which shows the information processing example in the mobile telephone 400 which concerns on a 4th Example. It is sectional drawing which shows the structural example of the touchscreen support vibrating body 500 which concerns on a prior art example.

  Subsequently, an embodiment of a substrate supporting vibration structure, an input device with a tactile function, and an electronic apparatus according to the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing a structural example of a touch panel supporting vibrator 100 as a first embodiment.

  A touch panel supporting vibration body 100 shown in FIG. 1 constitutes an example of a substrate supporting vibration structure, and is a structure that vibrates while supporting the substrate. Here, the touch panel supporting vibrating body is a structure in which a planar input means such as a touch panel is rigidly fixed with dots or lines, instead of being supported by an elastic body as found in the prior art. In this example, a display unit 29 as an example of a first substrate and a touch panel 24 as an example of a second substrate are used as a substrate for vibration (vibrated body). A liquid crystal display device is used for the display means 29. The second substrate may be a touch pad as a planar input device. The touch panel supporting vibrator 100 has a structure that can be mounted in a casing of a mobile phone, an information portable terminal device, or the like, and can present a tactile sensation using the vibration of the piezoelectric element.

  In this example, both the touch panel 24 and the display unit 29 have a width W [mm] and a length L [mm], and have predetermined thicknesses t1 and t2 [mm], respectively. Between the touch panel 24 and the display means 29, long rigid portions 61a and 61b as an example of a gap member are provided and fixed. In this example, the rigid portion 61a has a width w [mm], a length L [mm], and a predetermined thickness t3 [mm]. In the figure, the rigid portion 61b is disposed at the left end of the display means 29 and at the right end thereof. One surface of the rigid portion 61 a is bonded to the left side end of the front surface of the display unit 29, and the other surface is bonded to the left side end of the back surface of the touch panel 24. One surface of the rigid portion 61 b is bonded to the right side edge of the front surface of the display unit 29, and the other surface is bonded to the right side edge of the back surface of the touch panel 24.

  The rigid portions 61a and 61b are provided with component mounting spaces (component mounting portions) 62 each having an internal cavity shape. The rigid portions 61a and 61b are, for example, rods having a square cross section, and a slit-like component mounting space 62 is provided therein. The component mounting space 62 has a length of l [mm], a width of w [mm], and a height of about h [mm]. For the rigid portions 61a and 61b, a material having a large elastic modulus such as Young's modulus is used. For example, a synthetic resin member or a metal member such as aluminum, iron, copper, or an alloy thereof is used.

  A piezoelectric element is mounted at a predetermined position of the component mounting space 62 in the above-described rigid portions 61a and 61b. As the piezoelectric element, a bimorph type piezoelectric actuator is used. For example, the piezoelectric actuator 25a is stored and fixed in the component mounting space 62 of the rigid portion 61a, and the piezoelectric actuator 25b is stored and fixed in the component mounting space 62 of the rigid portion 61b. The piezoelectric actuators 25 a and 25 b have a size that can be stored in the component mounting space 62. Each of the piezoelectric actuators 25a and 25b has center electrodes 3a and 3b and a vibration acting part 8a that constitute a vibration supporting part.

  In this example, the center electrodes 3 a and 3 b such as the piezoelectric actuator 25 a and the vibration acting portion 8 a are aligned in the thickness direction in which the display unit 29 and the touch panel 24 are stacked. For example, each of the center electrodes 3 a and 3 b is joined to the lower part of the component mounting space 62, and the vibration acting portion 8 a is joined to the upper part of the component mounting space 62. About the lamination | stacking attitude | position of the display means 29 and the touchscreen 24, an example is given about the case where the display means 29 is a lower layer and the touchscreen 24 is an upper layer. When the touch panel supporting vibrator 100 is used, the display means 29 is positioned downward, the touch panel 24 is positioned upward, the display means 29 is positioned upward, and the touch panel 24 is positioned downward. Contains.

  FIG. 2 is an enlarged cross-sectional view showing an example of a laminated film-like piezoelectric body related to the piezoelectric actuator 25a. 3A and 3B are a plan view and a cross-sectional view taken along arrow X1-X2 showing a configuration example of the piezoelectric actuator 25a. Since the piezoelectric actuator 25b has the same configuration as the piezoelectric actuator 25a, the description thereof is omitted.

  A multilayered piezoelectric actuator 25a shown in FIG. 2 has a substrate (hereinafter referred to as a shim 3). On the surface side of the substrate 3, eight layers of film-like piezoelectric laminates # 1 to # 8 are adhesives 7. And 8 layers of film-like piezoelectric laminates # 9 to “16” are joined to each other via an adhesive 7. The shim 3 forms central electrodes 3a and 3b. The center electrode 3a constitutes one vibration support part, and the center electrode 3b constitutes the other vibration support part.The shim 3 includes a copper plate, a phosphor bronze plate, a white copper plate, and a brass plate. As the adhesive 7, an epoxy resin or a UV adhesive is used.

  The piezoelectric actuator (laminated body) 25a is, for example, a form in which a film-like piezoelectric laminate is laminated between electrodes, and a total of 16 film-like piezoelectric laminates # 1 to # 16, the upper electrode 1, The lower electrode 2, plus and minus center electrodes 3a and 3b, and 16 layers of electrodes IE1 to IE16 are provided.

  In the film-like piezoelectric laminates # 1 to # 8 on the surface side, the upper electrode 1 is connected to the main electrodes IE2, IE4, IE6, and IE8 through a through hole (not shown) and is connected to the central electrode 3b. The electrodes of each layer are connected by an electrode material filled in the through holes. In the film-like piezoelectric laminates # 9 to # 16 on the back side, the lower electrode 2 is connected to the main electrodes IE9, IE11, IE13, and IE15 through a through hole (not shown) and connected to the central electrode 3b. The

  Further, in the film-like piezoelectric laminates # 1 to # 8 on the surface side, the main electrode IE1 is connected to the main electrodes IE3, IE5, and IE7 through a through hole (not shown) and is connected to the central electrode 3a. In the film-like piezoelectric laminates # 9 to # 16 on the back side, the main electrode IE10 is connected to the main electrodes IE12, IE14, and IE16 through a through hole (not shown) and is connected to the central electrode 3a. Thereby, the 16-layer film-like piezoelectric laminates # 1 to # 16 are driven in parallel.

  An upper insulating film 8 is provided so as to cover the upper electrode 1. At the center of the upper electrode 1, a vibration action portion 8 a is integrally formed by the same insulating member as the upper insulating film 8. The vibration acting portion 8a is formed by integrating an insulating member formed on the uppermost layer of the piezoelectric actuator 25a with the upper insulating film 8. Note that the vibration acting portion 8a may be provided in the lower part on the inner side of the component mounting portion instead of being installed on the uppermost layer of the piezoelectric actuator 25a. A similar vibration effect can be obtained.

  Thus, the piezoelectric actuator 25a with an elastic function is comprised. The piezoelectric actuator 25b is configured similarly. The piezoelectric actuators 25a and 25b are subjected to polarization processing as necessary. When the piezoelectric actuator (laminated body) 25a is configured as described above, it can be applied to a mobile device utilizing the merit of being driven at a low voltage.

  In the piezoelectric actuator 25a shown in FIG. 3A, shims 3 extend on both sides of the film-like piezoelectric laminates # 1 to # 16, and both side portions (projections) have elasticity. By utilizing the elasticity of the convex portion of the shim 3, the piezoelectric body can vibrate in the vertical direction (vertical direction). The convex portion is processed into a structure that reduces the rigidity of the shim 3 in order to obtain a spring structure.

  For example, the substrate protrusion is subjected to a hole punching process, a notch process, a bending process, and the like so as to retain elasticity. In this example, in the piezoelectric actuator 25a shown in FIG. 3B, the central electrode 3a forming the vibration supporting portion is provided with a bent projection 6a and openings 5a and 5b shown in FIG. 3A. Thus, the protrusion 6b and the openings 5c and 5d are provided so that a large amount of elasticity can be obtained. By using the elastic structure on both sides of the shim 3, the piezoelectric body can vibrate up and down.

  In this example, shims 3 extending on both sides of the film-like piezoelectric laminates # 1 to # 16 form the central electrodes 3a and 3b of the piezoelectric actuators 25a and 25b. This is because the vibration control voltage is supplied to the piezoelectric actuators 25a and 25b via the central electrodes 3a and 3b forming the vibration support portion. The piezoelectric actuators 25a and 25b vibrate based on the vibration control voltage.

  The bimorph type piezoelectric actuator 25a and the like have a difference in deformation amount between the upper and lower two-layer film-like piezoelectric laminates # 1 to # 8 and the film-like piezoelectric laminates # 9 to # 16 constituting the piezoelectric element, When a voltage is applied, the piezoelectric element itself bends using the property that one side extends and one side shrinks.

  According to this touch panel supporting vibration body 100, for example, central electrodes 3a and 3b that are provided on the front and back of the piezoelectric actuator 25a, for example, two vibration supporting portions provided on the left and right ends of the shim 3, and a film-like piezoelectric laminate A linear vibration displacement can be obtained by propagating the bending deformation described above to the touch panel 24 serving as a driven portion through one vibration acting portion 8a installed at the center of the bodies # 1 to # 16. It has a structure.

  In other words, the central electrodes 3a and 3b and the vibration acting portion 8a constituting the discrete vibration supporting portions are necessary for obtaining a linear displacement. In this example, the discrete central electrodes 3a and 3b and the vibration acting portion 8a, and the support structure of the touch panel 24 are configured by rigid portions 61a and 61b which are the same parts. The vibration described above is propagated to input means such as the touch panel 24 mounted on the rigid parts 61a and 61b. As a result, a tactile sensation can be presented to the finger or the like of the operator (operating body) touching the touch panel 24.

  Subsequently, an example of forming the touch panel supporting vibrator 100 according to the first embodiment will be described. FIG. 4 is a process diagram illustrating an example of forming the touch panel supporting vibration body 100.

  In this embodiment, it is assumed that a touch panel supporting vibrator 100 that can be applied to an input unit, a display unit, or the like is created in a mobile phone, an information portable terminal device, or the like. The touch panel supporting vibration body 100 is provided with rigid portions 61a and 61b, and the piezoelectric actuator 25a is attached to the rigid portion 61a and the piezoelectric actuator 25b is attached to the rigid portion 61b. The touch panel 24 and the display means 29 preferably have flat adhesive surfaces.

  Under these forming conditions, first, the piezoelectric actuators 25a and 25b, the touch panel 24, the rigid portions 61a and 61b, and the display means 29 shown in FIG. 4A are prepared. About the piezoelectric actuator 25a etc., since the formation method is demonstrated in FIG.2 and FIG.3, the description is abbreviate | omitted. An example of forming the rigid portions 61a and 61b will be described.

  Rigid portions 61a and 61b with a component mounting portion having a thickness t3 [mm], for example, create a predetermined mold including a core that imitates a component mounting space 62 for slits on the inside, and synthetic resin is formed on the mold. Is molded by injection. The mold is designed so that the component mounting space 62 has a length of l [mm], a width of w [mm], and a height of about h [mm]. Protrusions for punching out the slits of the component mounting space 62 are provided on both surfaces of the mold. Rigid portions 61a and 61b, which are hard plastic support parts, are formed by encapsulating a predetermined resin material, for example, polycarbonate, in the mold and molding the mold.

  In this example, processing for providing the receiving side electrodes 64 a and 64 b is performed inside the component mounting space 62. For example, a step is provided in the shape of the electrode holder so that the center electrodes 3a and 3b are not displaced after mounting the piezoelectric actuator 25a and the like. When such an electrode holder shape is configured, the vibration is propagated to the touch panel surface even when the touch panel supporting vibrator 100 is operated while maintaining any posture, for example, a horizontal posture, a supine posture, an oblique posture, and an upright posture. become able to.

  The receiving-side electrodes 64a and 64b are opened with electrode insertion holes so as to be exposed on the upper surface of the component mounting space 62, for example. For example, one of the receiving side electrodes 64a and 64b is a center electrode contact surface, and the other is a lead wire connection terminal. In this example, the receiving-side electrodes 64a and 64b are engaged with the electrode insertion holes, and the lead wire connection terminals are drawn out to the outside of the frame or below the frame.

  The receiving-side electrodes 64a and 64b are connected to the center electrodes 3a and 3b of the piezoelectric actuator 25a when the piezoelectric laminate component is attached. The rigid parts 61a and 61b may be made of a metal member such as aluminum, iron, copper, or an alloy thereof other than an injection molded product by a bending process or a cutting process. Needless to say, when metal members are used for the rigid portions 61a and 61b, the receiving electrodes 64a and 64b are insulated from each other except for the charged portions.

  Next, the piezoelectric actuator 25a is mounted on the rigid portion 61a shown in FIG. 4B. Although not shown, the piezoelectric actuator 25b is also mounted on the rigid portion 61b. In this example, receiving side electrodes 64a and 64b are provided inside the component mounting space 62 of the rigid portion 61a, and central electrodes 3a and 3b such as the piezoelectric actuator 25a are connected to the receiving side electrodes 64a and 64b. This structure is adopted because the electrical connection between the receiving electrodes 64a and 64b and the central electrodes 3a and 3b and the mechanical engagement between the rigid portions 61a and 61b and the piezoelectric actuator 25a are simultaneously performed. This is because it is easy to do.

  Thereafter, the rigid portions 61a and 61b are sandwiched and fixed between the touch panel 24 and the display means 29 shown in FIG. 4C. In this example, a rigid portion 61a is arranged at the left end of the display means 29, and a rigid portion 61b is arranged at the right end thereof. One surface of the rigid portion 61a is bonded to the left end of the front surface of the display means 29 via an adhesive, and the other surface is bonded to the left end of the back surface of the touch panel 24 via an adhesive. Similarly, one surface of the rigid portion 61b is bonded to the right side edge of the front surface of the display means 29, and the other surface is bonded to the right side edge of the back surface of the touch panel 24 via an adhesive. Thereby, the touch panel support vibration body 100 which can be mounted on a mobile phone or the like can be formed.

  As described above, according to the touch panel supporting vibration body 100 as the first embodiment, when the touch panel 24 and the display unit 29 are stacked and supported by each other, the structure that supports the touch panel 24 corresponds to the touch panel 24. Rather than using an elastic body to give a degree of freedom of tactile vibration, both sides on the display means 29 are rigidly fixed below the touch panel 24 in a linear form. The piezoelectric actuator 25 a is provided in the component mounting space 62 of the rigid portions 61 a and 61 b between the touch panel 24 and the display unit 29. In the above-described example, the central electrodes 3a and 3b and the vibration acting portion 8a that constitute the vibration supporting portion such as the piezoelectric actuator 25a are mounted on the same rigid portion 61a and 61b, not separate members. In addition, the center electrodes 3 a and 3 b and the vibration acting portion 8 a of the piezoelectric actuator 25 are aligned in the thickness direction in which the display unit 29 and the touch panel 24 are stacked.

  Accordingly, it is possible to realize a structure that supports the center electrodes 3a and 3b and the vibration acting portion 8a of the piezoelectric actuator 25 and the touch panel 24 as a planar input device by a simple space component such as rigid portions 61a and 61b or a space bonding method. became. As a result, it is possible to provide a vibrating housing in which the rigid display means 29 and the touch panel 24, which have the property of suppressing dimensional changes with respect to bending force and torsional force, are fixed. Therefore, when the piezoelectric actuator 25a or the like is vibrated, high reliability can be secured with respect to vibration transmission performance regardless of the posture in which the vibration housing is used.

  In particular, the vibration generated by the piezoelectric actuator 25 generated in the substrate support vibration structure can be applied to an electronic device such as a mobile device or an in-vehicle device that is highly likely to receive vibration or impact as an external force.

  Further, the formation process of the touch panel supporting vibration body 100 is not limited to the above-described formation process sequence. After the piezoelectric actuator 25a is first mounted on the rigid portions 61a and 61b, the touch panel 24 and the display means 29 are then mounted. Between them, rigid portions 61a and 61b with piezoelectric actuators may be sandwiched and fixed. If, for example, a double-sided tape is previously applied to the upper and lower surfaces of the rigid portions 61a and 61b, the bonding process is relaxed, and the assembly man-hour is further reduced.

  FIG. 5 is a perspective view showing a structural example of a touch panel supporting vibrator 200 as a second embodiment.

  A touch panel supporting vibration body 200 shown in FIG. 5 has long rigid portions 71a and 71b. The rigid parts 71a and 71b are provided with a part mounting space 72 having an open top shape, and the central electrodes 3a and 3b forming the vibration supporting part of the piezoelectric actuator 25a are joined to the rigid parts 71a and 71b, which are the same parts. The vibration acting part 8a is joined (contacted) to the touch panel 24 which is a separate part. The vibration action part 8a is directly joined to the back surface side of the touch panel 24 via an adhesive, for example. Hard resin is desirable for the back side of the touch panel 24 to obtain rigidity.

  Also in this example, both the touch panel 24 and the display unit 29 have a width W [mm] and a length L [mm], and have predetermined thicknesses t1 and t2 [mm], respectively. Between the touch panel 24 and the display means 29, rigid portions 71a and 71b having an open top shape as another example of the gap member are provided and fixed. In this example, the rigid portion 71a has a width w [mm], a length L [mm], and a predetermined thickness t3 ′ [mm]. Regarding the thickness of the rigid portions 71a and 71b, t3> t3 ′ is satisfied with respect to the first embodiment.

  In the drawing, the rigid portion 71b is disposed at the left end of the display means 29 and at the right end thereof. The bottom surface side of the rigid portion 71 a is bonded to the left end of the front surface of the display unit 29, and the protrusion (columnar) portions 73 a and 73 b on both sides thereof are bonded to the left rear end of the touch panel 24. The bottom surface side of the rigid portion 71b is bonded to the right end of the front surface of the display unit 29, and the protrusions (columnar) portions 73a and 73b on both sides thereof are bonded to the right side end of the back surface of the touch panel 24, respectively.

  Rigid portions 71a and 71b are provided with component attachment portions (positions) 72 each having an open top shape. The rigid portions 71a and 71b are, for example, longitudinal concave bodies, and the inside thereof is a component mounting space 72. The component mounting space 72 has a concave shape having a length of l [mm], a width of w [mm], and a depth of about d [mm]. The rigid parts 71a and 71b are also made of a material having a high elastic modulus such as Young's modulus in the same manner as the rigid parts 61a and 61b. For example, a synthetic resin member, a metal such as aluminum, iron, copper, or an alloy thereof. A member is used.

  Subsequently, an example of forming the touch panel supporting vibrator 200 according to the second embodiment will be described. FIG. 6 is a process diagram illustrating an example of forming the touch panel supporting vibrator 200.

  In this embodiment, it is assumed that a touch panel supporting vibrator 200 that can be applied to an input unit, a display unit, or the like is created in a mobile phone, an information portable terminal device, or the like. The touch panel supporting vibration body 200 is provided with rigid portions 71a and 71b, and the piezoelectric actuators 25a and 25b are attached to the rigid portions 71a and 71b in the same manner as in the first embodiment. The touch panel 24 and the display means 29 preferably have flat joint surfaces.

  Under these forming conditions, first, the piezoelectric actuators 25a and 25b, the touch panel 24, the rigid portions 71a and 71b, and the display means 29 shown in FIG. 6A are prepared. About the piezoelectric actuator 25a etc., since the formation method is demonstrated in FIG.2 and FIG.3, the description is abbreviate | omitted. An example of forming the rigid portions 71a and 71b will be described.

  Rigid portions 71a and 71b with thickness t3 ′ [mm] with a component mounting space, for example, create a predetermined mold including a core that imitates a concave component mounting space 72 on the inside, and synthetic resin is formed on the mold. Material is injected and molded. The mold is designed so that the part mounting space 72 has a length of l [mm], a width of w [mm], and a depth of about d [mm]. Protrusions for punching out the component mounting space 72 are provided on both surfaces of the mold. Rigid portions 71a and 71b made of hard plastic are formed by encapsulating a predetermined synthetic resin material, for example, polycarbonate, in the mold and shaping the mold.

  In this example, processing for providing the receiving side electrodes 74 a and 74 b is performed inside the component mounting space 72. For example, after mounting the piezoelectric actuator 25a and the like, the electrode holder shape is provided with a step so that the center electrodes 3a and 3b are not displaced from each other in the same manner as in the first embodiment. When configured in such an electrode holder shape, the touch panel support vibrator 200 can propagate vibrations to the touch panel surface even when a tactile operation is performed while maintaining any posture, horizontal posture, supine posture, oblique posture, upright posture, etc. become able to. Since the receiving electrodes 74a and 74b are the same as those in the first embodiment, the description thereof is omitted.

  The receiving-side electrodes 74a and 74b are connected to the center electrodes 3a and 3b of the piezoelectric actuator 25a when the piezoelectric laminate component is attached. The rigid parts 71a and 71b may be made of a metal member such as aluminum, iron, copper, or an alloy thereof by bending or cutting in addition to the injection molded product. When metal members are used for the rigid portions 71a and 71b, the receiving electrodes 74a and 74b are insulated except for the charged portions in the same manner as in the first embodiment.

  Next, the piezoelectric actuator 25a is mounted on the rigid portion 71a shown in FIG. 6B. Although not shown, the piezoelectric actuator 25b is also mounted on the rigid portion 71b. In this example, receiving side electrodes 74a and 74b are provided inside the component mounting space 72 of the rigid portion 71a, and central electrodes 3a and 3b such as the piezoelectric actuator 25a are connected to the receiving side electrodes 74a and 74b. The reason for adopting such a structure is the same reason as in the first embodiment.

  Thereafter, the rigid portions 71a and 71b are sandwiched and fixed between the touch panel 24 and the display means 29 shown in FIG. 6C. In this example, a rigid portion 71a is arranged at the left end of the display means 29, and a rigid portion 71b is arranged at the right end thereof. One surface of the rigid portion 71a is adhered to the left end of the surface of the display means 29 via an adhesive, and the protrusions 74a and 74b on both sides thereof are adhered to the left end of the back surface of the touch panel 24 via an adhesive.

  Similarly, one surface of the rigid portion 71b is bonded to the right side edge of the display means 29, and the protrusions 74a and 74b on both sides thereof are bonded to the right side edge of the back surface of the touch panel 24 via an adhesive. Thereby, the vibration action part 8a of the piezoelectric actuator 25a contacts the bottom surface of the touch panel 24 on the rigid part 71a, and the vibration action part 8a of the piezoelectric actuator 25b contacts the bottom surface of the touch panel 24 on the rigid part 71b. The touch panel supporting vibrator 200 that can be mounted on a mobile phone or the like can be formed.

  Of course, the formation process of the touch panel supporting vibrator 200 is not limited to the above-described order of the formation process. The piezoelectric actuators 25a and 25b are first mounted on the rigid portions 71a and 71b, and then the touch panel 24 is displayed. Rigid portions 71a and 71b with piezoelectric actuators may be sandwiched and fixed between the means 29.

  As described above, according to the touch panel supporting vibrating body 200 as the second embodiment, when the touch panel 24 and the display unit 29 are stacked and supported to each other, the structure that supports the touch panel 24 corresponds to the touch panel 24. The touch panel is not an elastic body for giving a degree of freedom of tactile vibration, but is supported by support points at the four corners on the display means 29, that is, the projections 74a and 74b on one side and the projections 74a and 74b on the other side. 24 is fixed to a rigid bottom.

  The piezoelectric actuators 25 a and 25 b are provided in the component mounting space 72 of the rigid portions 71 a and 71 b between the touch panel 24 and the display unit 29. In the example described above, the central electrodes 3a and 3b such as the piezoelectric actuator 25a are mounted on the same rigid portions 71a and 71b, not separately, and the vibration acting portion 8a is directly joined (contacted) under the touch panel 24. In addition, the center electrodes 3 a and 3 b and the vibration acting portion 8 a of the piezoelectric actuator 25 are aligned in the thickness direction in which the display unit 29 and the touch panel 24 are stacked.

  Accordingly, it is possible to realize a structure that supports the central electrodes 3a and 3b such as the piezoelectric actuator 25a and the vibration acting portion 8a and the touch panel 24 that is a planar input device by a simple space component such as the rigid portions 71a and 71b or a space bonding method. Became. Accordingly, it is possible to provide a rigid vibration housing in which the display unit 29 and the touch panel 24 are fixed. In addition, the thickness is reduced compared to the first embodiment, and when the piezoelectric actuator 25a and the like are vibrated in the same manner as in the first embodiment, the vibration housing is vibrated regardless of the posture in which the vibration housing is used. It becomes possible to ensure high reliability with respect to transmission.

  FIG. 7 is a top view showing a structural example (No. 1) of the touch panel supporting vibrator 300 as the third embodiment. FIG. 8 is a diagram showing the structure example (No. 2), FIG. 8A is a sectional view taken along the line XX, and FIG. 8B is a sectional view taken along the line YY. Respectively.

  The touch panel supporting vibrator 300 shown in FIG. 7 has a width W [mm] and a length L [mm]. The touch panel 24 and the display means 29 are rigidly fixed by columnar portions 81a, 81b, 81c, 81d (four corner portions) at four corners. Component mounting spaces 82a and 82b are formed between the columnar portion 81a and the columnar portion 81b and between the columnar portion 81c and the columnar portion 81d, respectively.

  The piezoelectric actuator 25a is disposed in the component mounting space 82a, and the piezoelectric actuator 25b is disposed in the component mounting space 82b. Also in this example, the piezoelectric actuator 25a has a longitudinal shape, has the central electrodes 3a and 3b on both sides of the longitudinal portion, and has one vibration acting portion 8a in the central portion. .

  A printed circuit board 68 is provided in the component mounting space 82b, and a sheet-like wiring 67 from the outside is connected thereto. The wiring 67 is distributed on the printed circuit board 68, and one wiring is supplied so as to apply a control driving voltage to the piezoelectric actuator 25b. The other wiring patterns 67a and 67b are connected to the piezoelectric actuator 25a on the opposite side, and similarly, a control drive voltage is applied. The printed board 68 may be used as the board of the touch panel 24 or the display means 29.

  The columnar portion 81c and the columnar portion 81d shown in the touch panel supporting vibrator 300 shown in FIG. 8A constitute an example of a gap member, and the thickness thereof is set to t3 ″ (t3 ″ <t3 ′ <t3). The thickness t3 ″ is substantially equal to the thickness of the piezoelectric actuator 25a, etc. The thickness t3 ″ is set in this way in order to reduce the thickness of the touch panel supporting vibrator 300 as compared with the first and second embodiments. is there.

  In the piezoelectric actuator 25a shown in FIG. 8B, the vibration acting part 8a is arranged toward the touch panel 24, and the central electrodes 3a and 3b forming the vibration supporting part are arranged respectively toward the display means 29. The vibration action unit 8a is in contact with the lower surface of the touch panel 24 and propagates vibration so as to press (push up) the touch panel 24 from below.

  In this example, the printed circuit board 68 is provided with receiving electrodes 84c and 84d. After the piezoelectric actuator 25b is mounted, the receiving electrodes 84c and the central electrode 3a are arranged so that the central electrodes 3a and 3b are not displaced. Similarly, the receiving electrode 84d and the center electrode 3b are soldered. By adopting such an electrode structure, vibrations can be propagated to the touch panel surface even when the touch panel supporting vibrator 300 is operated while maintaining any posture, for example, a horizontal posture, a supine posture, an oblique posture, an upright posture, etc. become.

  Subsequently, an example of forming the touch panel supporting vibrator 300 will be described. FIG. 9 is a process diagram illustrating an example of forming the touch panel supporting vibrator 300 according to the third embodiment.

  In this embodiment, it is assumed that a touch panel supporting vibrator 300 applicable to input means, display means, and the like is created in a mobile phone, an information portable terminal device, and the like. In the touch panel supporting vibration body 300, four columnar portions 81a to 81d are provided, and component mounting spaces 82a and 82b are set between the columnar portions 81a and 81b or between the columnar portions 81c and 81d. As in the second embodiment, a case where the piezoelectric actuators 25a and 25b are attached will be described. The touch panel 24 and the display means 29 preferably have flat joint surfaces.

  Under these forming conditions, first, the piezoelectric actuators 25a and 25b, the touch panel 24, the columnar portions 81a to 81d, and the display unit 29 shown in FIG. 9A are prepared. The method for forming the piezoelectric actuator 25a and the like will be described with reference to FIGS. 2 and 3, and the touch panel 24 and the display means 29 have been described in the first embodiment, so that description thereof will be omitted. Here, an example of forming the columnar portions 81a to 81d will be described.

  The columnar portions 81a to 81d for setting the component mounting space are formed, for example, by cutting a hard plastic rod to a thickness of about t3 ′ [mm]. Of course, the present invention is not limited to this, and a predetermined mold that represents the columnar portion 81a or the like may be created, and a synthetic resin material may be injected into the mold and molded.

  In this example, the printed wiring board 68 is formed at a predetermined position on the surface of the display means 29, and processing for providing the receiving-side electrodes 84a and 84b on the printed wiring board 68 is performed. For example, after mounting the piezoelectric actuator 25a and the like, the electrode holder-shaped step is formed in the same manner as in the first embodiment so that the center electrodes 3a and 3b are not displaced.

  The electrode holder-shaped steps (part mounting spaces 82a and 82b) are formed as an integral structure on the display means 29 by printing or two-color molding technology, including the columnar portions 81a to 81d. Of course, the component mounting spaces 82a and 82b may be formed under the touch panel 24 in the drawing by printing or two-color molding technology. Further, the printed board 68 may be formed on the board of the touch panel 24 or the display means 29 by printing or a two-color molding technique.

  When the step is formed in such an electrode holder shape, even if the touch panel supporting vibrator 300 is operated in a tactile sense while maintaining any posture, horizontal posture, supine posture, slant posture, upright posture, etc., vibration is applied to the touch panel surface. Can be propagated to. Since the receiving electrodes 84a and 84b are the same as those in the first embodiment, the description thereof is omitted.

  The receiving electrodes 84a and 84b are connected to the central electrodes 3a and 3b of the piezoelectric actuator 25a when the piezoelectric laminate component is attached. As the columnar portions 81a to 81d, in addition to the injection molded product, a metal member such as aluminum, iron, copper, or an alloy thereof may be used by cutting processing.

  Next, the piezoelectric actuator 25a is mounted on the printed circuit board 68 shown in FIG. 9B. Although not shown, the piezoelectric actuator 25b is mounted on the opposite side. In this example, wiring is performed via wiring patterns 67a and 67b as shown in FIG.

  Thereafter, the columnar portions 81a, 81b, 81c, 81d are sandwiched and fixed between the touch panel 24 and the display means 29 shown in FIG. 9C. In this example, columnar portions 81a, 81b, 81c, 81d are arranged at four corners, respectively. For example, the columnar portion 81c is disposed in front of the left end of the display unit 29, the columnar portion 81a is disposed in the back, the columnar portion 81b is disposed in front of the right end, and the columnar portion 81c is disposed in the back.

  These columnar portions 81a, 81b, 81c, 81d are sandwiched between the touch panel 24 and the display means 29 and fixed. One surface of each of the columnar portions 81 a to 81 d is bonded to the surface of the display means 29 via an adhesive, and the other surface is bonded to the back surface of the touch panel 24 via an adhesive.

  By this adhesion, the vibration acting portions 8a of the piezoelectric actuators 25a and 25b are brought into contact with the bottom surface of the touch panel 24, respectively. Thereby, the touch panel support vibrating body 300 that can be mounted on a mobile phone or the like can be formed.

  Of course, the process for forming the touch panel supporting vibrator 300 is not limited to the above-described process sequence, and the piezoelectric actuators 25a and 25b are first mounted in the component mounting spaces 82a and 82b defined by the columnar portions 81a to 81d. After that, the columnar portions 81 a to 81 d may be formed on the display unit 29, and the columnar portions 81 a to 81 d may be sandwiched between the touch panel 24 and the display unit 29 and fixed.

  Thus, according to the touch panel supporting vibration body 300 as the third embodiment, the touch panel 24 and the display means 29 are rigidly fixed by the columnar portions 81a, 81b, 81c, 81d at the four corners.

  Accordingly, it is possible to realize a structure that supports the central electrodes 3a and 3b such as the piezoelectric actuator 25a, the vibration acting portion 8a, and the touch panel 24 that is a planar input device by using a simple interval holding component such as the columnar portions 81a to 81d or a space joining method. It became so. In addition, the number of parts and the number of assembling steps can be reduced as compared with the first and second embodiments.

  Accordingly, it is possible to provide a vibration housing having a rigid and simple structure in which the display unit 29 and the touch panel 24 are fixed. Therefore, when the piezoelectric actuator 25a or the like is vibrated, as in the first and second embodiments, it is possible to ensure high reliability in terms of vibration transmission regardless of the posture in which the vibration housing is used. Become.

  In the first to third embodiments described above, the description has been given of the case where the vibration acting portion 8a is directed toward the touch panel side and the central electrodes 3a and 3b are disposed toward the display means side, but the present invention is not limited thereto. The same effect can be obtained even if the vibration acting portion 8a is directed to the display means side and the center electrodes 3a and 3b are directed to the touch panel side by turning upside down.

  Moreover, although the piezoelectric actuators 25a and 25b have been described with respect to the case where they are provided in two places on the left and right sides of the display means or the like, the present invention is not limited to this. be able to. Thereby, cost reduction of the input device with a tactile function can be achieved.

  FIG. 10 is a perspective view showing a configuration example of a mobile phone 400 with a tactile input function as a fourth embodiment.

  In this embodiment, the touch panel supporting vibrator 100, 200 or 300 according to the first to third embodiments is provided, and the vibration corresponding to the pressing force at the position pressed by the operating body on the input detection surface on the display means 29 is provided. The input detection surface is vibrated based on the pattern so that a tactile sensation can be given to the pressing operation of the operating body on the input detection surface, and an input of a button icon or the like displayed on the display means 29 is performed. It can be confirmed.

  A cellular phone 400 shown in FIG. 10 constitutes an example of an electronic device, and includes an input device 90 with a tactile function that is operated by sliding contact on an input detection surface on a display screen. The cellular phone 400 includes a lower casing 10 and an upper casing 20, and the casings 10 and 20 are engaged with each other by a rotation range mechanism 11 so as to be movable. According to this rotation range mechanism, a shaft portion (not shown) provided at one end of the operation surface of the lower housing 10 and a bearing portion (not shown) provided at one end of the back surface of the lower housing 10 are rotatably engaged. The upper housing 20 is surface-coupled to the lower housing 10 with a rotational degree of freedom of an angle of ± 180 °.

  The lower housing 10 is provided with an operation panel 18 composed of a plurality of push button switches 12. The push button switch 12 includes “0” to “9” numeric keys, symbol keys such as “*” and “#”, hook buttons such as “on” and “off”, menu keys, and the like. In the lower housing 10, a microphone 13 for calling is attached below the operation panel surface so as to function as a transmitter.

  A module-type antenna 16 is attached to the lower end of the lower housing 10, and a loudspeaker speaker 36a is provided on the inner side of the upper end so as to emit a ringing melody or the like. The lower housing 10 is provided with a battery 16, a circuit board 17, and the like, and a camera 34 is attached to the back surface of the lower housing 10.

  The upper casing 20 that is movably engaged with the above-described lower casing 10 by the rotation range mechanism 11 is provided with a speaker 36b for calling above the surface thereof so as to function as a receiver. The An input device 90 with a tactile function is provided below the speaker mounting surface of the upper housing 20. For the input device 90, for example, a touch panel supporting vibrator 300 is used.

  The input device 90 includes an input detection unit 45 and a display unit 29, and gives a tactile sensation to the pressing operation of the operating body on the input detection surface on the display screen. The display means 29 displays input information such as a plurality of button icons.

  FIG. 11 is an assembly diagram illustrating a configuration example of the touch panel supporting vibrator 300 according to the input device 90 with a tactile function.

  A touch panel supporting vibration body 300 illustrated in FIG. 11 includes a touch panel 24 having a width W [mm] and a length L [mm], a display unit 29, and the like. The touch panel 24 and the display means 29 are stacked and used. In this example, columnar portions 81a, 81b, 81c, 81d (four corner portions) are arranged at the four corners of the display means 29, and the touch panel 24 and the display means 29 are rigidly formed by the columnar portions 81a, 81b, 81c, 81d. It is fixed to. The columnar portion 81a and the like have both a width and a length of w [mm] and a height of about h ′ [mm].

  The piezoelectric actuator 25a is disposed in the component mounting space 82a defined between the columnar portion 81a and the columnar portion 81b, and the piezoelectric actuator is disposed in the component mounting space 82b defined between the columnar portion 81c and the columnar portion 81d. 25b is arranged. For example, the vibration action part 8 a of the piezoelectric actuator 25 a is arranged toward the touch panel 24, and the central electrodes 3 a and 3 b constituting the vibration support part are arranged toward the display unit 29. The vibration action unit 8a is in contact with the lower surface of the touch panel 24 and propagates vibration so as to press (push up) the touch panel 24 from below.

  A printed circuit board 68 is provided in the component mounting space 82b, and a sheet-like wiring 67 from the outside is connected (see FIG. 7). The printed circuit board 68 is provided with receiving electrodes 84c and 84d. After mounting the piezoelectric actuator 25b, the central electrode 3a is soldered to the receiving electrode 84c, and the receiving electrode 84d and the central electrode 3b are soldered. The On the component mounting space 82a side, receiving electrodes 84a and 84b are provided. After mounting the piezoelectric actuator 25a, the central electrode 3a is soldered to the receiving electrode 84a, and the central electrode 3b is soldered to the receiving electrode 84b. Attached. By adopting such an electrode structure, vibrations can be propagated to the touch panel surface even when the touch panel supporting vibrator 300 is operated while maintaining any posture, for example, a horizontal posture, a supine posture, an oblique posture, an upright posture, etc. become.

  FIG. 12 is a perspective view showing a structural example of the input device 90 with a tactile function. An input device 90 shown in FIG. 12 is a device that touches one of a plurality of icons displayed on the display screen for selecting an input item and performs an input operation on the display screen. Sometimes a tactile sensation is presented to the operator's finger (operation body).

  The input device 90 includes an upper housing 20, force detection means 55 a to 55 d, a main body substrate 69, and a touch panel supporting vibration body 300. In this example, the force detection means 55 a to 55 d and the touch panel supporting vibration body 300 are disposed on the main body substrate 69 and are assembled so as to cover the upper housing 20. The touch panel 24 of the touch panel supporting vibration body 300 and the force detection means 55 a to 55 d on the main body substrate 69 constitute an input detection means 45.

  The input device 90 is configured to present a tactile sensation to the operator's finger by the piezoelectric actuators 25 a and 25 b in the touch panel supporting vibrator 300 based on the input operation of the input detection means 45. In this example, one of the input detection surfaces of the input detection means 45 is the X direction, the other orthogonal to the X direction is the Y direction, and the direction orthogonal to the X and Y directions is the Z direction.

  The touch panel 24 detects the selection position of the button icon. The input information obtained from the touch panel 24 includes position detection information. The position detection information is obtained from the position detection signal S1 when the button icon is pressed, and is output to the control system. The touch panel 24 uses a capacitive input device, and storage electrodes (transparent electrodes) (not shown) are arranged in a matrix.

  Below the touch panel 24, display means 29 having the same size is arranged. A liquid crystal display device is used for the display means 29. The liquid crystal display device includes a backlight (not shown). The touch panel 24 and the display means 29 constitute a vibrating body. The display unit 29 operates to display an icon based on the position detection signal S1 obtained from the touch panel 24 and the display signal Sv supplied from the control system.

  In this example, piezoelectric actuators 25a and 25b are provided between the touch panel 24 and the display means 29, and a vibration control signal Sa (voltage) is supplied to the center electrodes 3a and 3b. The piezoelectric actuator 25a vibrates the display screen (input operation surface) from the backlight direction based on the vibration control signal Sa. The piezoelectric actuator 25b is also configured to vibrate the display screen from the backlight direction based on the vibration control signal Sb.

  Each piezoelectric actuator 25a, 25b has elasticity on both sides (projections) of the shim 3 shown in FIG. 3B. By utilizing the elasticity of the convex portion of the shim 3, the piezoelectric body can vibrate in the vertical direction (vertical direction). In other words, the piezoelectric body vibrates in a direction parallel to the direction of light transmitted from the backlight of the liquid crystal display device. As a result, a tactile sensation can be presented to an operator's finger or the like touching the touch panel 24.

  The vibration control signals Sa and Sb are supplied from the control system to the piezoelectric actuators 25a and 25b. The vibration control signals Sa and Sb are signals for generating a plurality of vibration patterns. For example, when the operator touches (touches) one of the icons displayed on the display unit 29, the piezoelectric actuators 25a and 25b. To be supplied.

  Also, for example, square-shaped force detecting means 55 a to 55 d are provided at the four corners of the main body substrate 69, and the force detection information is output by detecting the pressing force (pressing force) of the operator's finger against the touch panel 24. The input information displayed at the pressed position is confirmed. The force detection unit 55a detects, for example, a force detection signal Sfa when the icon is selected as the input amount (pressing force in the Z direction) at the lower right corner.

  Similarly, the force detection means 55b detects the force detection signal Sfb when the icon is selected as the input amount (force) in the upper right corner, and the force detection means 55c uses the input amount (force) in the upper left corner as the input amount (force). The force detection signal Sfc at the time of icon selection is detected, and the force detection means 55d detects the force detection signal Sfd at the time of icon selection as an input amount (force) at the lower left corner. These four force detection means 55a to 55d are connected in parallel and output these four force detection signals Sfa + Sfb + Sfc + Sfd to the control system. Hereinafter, the summed signal is referred to as an input detection signal S2. The input detection signal S2 is output to the control system.

  The above-described touch panel 24, display means 29, and main body substrate 69 are housed in the upper housing 20 and protected. The upper housing 20 is made of, for example, a stainless steel plate having a thickness of about 0.3 mm, has a window portion that exposes the touch panel 24, and has a touch panel supporting vibration pair 300 provided on the main body substrate 69. Combined to cover. Thereby, the input device 90 with a tactile function can be configured.

  Next, a configuration example of the control system of the mobile phone 400 with a tactile input function and a tactile feedback input method will be described. FIG. 13 is a block diagram illustrating a configuration example of a control system of the mobile phone 400 with a tactile input function.

  A cellular phone 400 shown in FIG. 13 is configured by mounting blocks of various functions on the circuit board 17 of the lower housing 10. In addition, the part corresponding to each part and means shown in FIGS. 10-12 is shown with the same code | symbol. The cellular phone 400 includes a control unit 15, an operation panel 18, a reception unit 21, a transmission unit 22, an antenna duplexer 23, an input detection unit 45, a display unit 29, a power supply unit 33, a camera 34, a storage unit 35, a piezoelectric actuator 25a, and the like. 25b.

  The input detection means 45 shown in FIG. 13 has been described with reference to the capacitance type input device in FIG. 12, but may be anything as long as it can distinguish between the function of curling and selection, for example, the resistive film type, the surface wave elastic type, etc. (SAW), an optical method, a multi-stage tact switch, or the like may be used. Preferably, any input device having a configuration in which position detection information and force detection information are provided to the control means 15 may be used. The input detection means 45 described above receives at least the position detection signal S1 and the input detection signal S2 that is the input amount (pressing force; pressing force F) via the finger 30a of the operator 30.

  The control unit 15 constitutes a control system and includes an image processing unit 26, an A / D driver 31, a CPU 32, and an actuator drive circuit 37. The A / D driver 31 is supplied with the position detection signal S1 and the input detection signal S2 from the input detection means 45. The A / D driver 31 converts an analog signal composed of the position detection signal S1 and the input detection signal S2 into digital data in order to distinguish between the functions of cursoring and icon selection. In addition to this, the A / D driver 31 performs arithmetic processing on this digital data to detect whether the input is cursoring input or icon selection information, and flag data D3 or position detection information D1 or input detection for distinguishing between cursor input and icon selection. The information D2 is supplied to the CPU 32. These calculations may be executed in the CPU 32.

  A CPU 32 is connected to the A / D driver 31. The CPU 32 controls the entire telephone set based on the system program. The storage means 35 stores system program data for controlling the entire telephone. A RAM (not shown) is used as a work memory. When the power is turned on, the CPU 32 reads out system program data from the storage means 35 and develops it in the RAM, starts up the system and controls the entire mobile phone. For example, the CPU 32 receives position detection information D1, input detection information D2, and flag data D3 (hereinafter also simply referred to as input data) from the A / D driver 31, and sends predetermined command data D to the power supply unit 33, the camera 34, Control is performed such that the data is supplied to devices such as the storage unit 35, the actuator driving unit 37, the video & audio processing unit 44, the reception data from the reception unit 21 is taken in, or the transmission data is transferred to the transmission unit 2.

  In this example, the CPU 32 compares the input detection information D2 obtained from the input detection means 45 with a preset pressing determination threshold value Fth, and controls the piezoelectric actuators 25a and 25b to vibrate based on the comparison result. The actuator driving unit 37 is controlled. For example, if the haptics propagated from the input detection surface at the pressed position of the input detection means 45 are “A” and “B”, the haptic “A” corresponds to the pressure F applied by the operator's finger 30a at the pressed position. The input detection surface is obtained by changing the vibration pattern having a low frequency and a small amplitude to a vibration pattern having a high frequency and a large amplitude. The tactile sense “B” is to change the input detection surface corresponding to the pressure F of the operator's finger 30a at the pressed position from a vibration pattern having a high frequency and a large amplitude to a vibration pattern having a low frequency and a small amplitude. Therefore, it is obtained.

  Storage means 35 is connected to the CPU 32 described above, for example, display information D4 for displaying the input item selection display screen three-dimensionally, and the icon selection position and vibration mode corresponding to the display information D4. Control information Dc and the like are stored for each display screen. The control information Dc can generate a plurality of different tactile sensations synchronized with an application (three-dimensional display or various display contents) on the display means 29, and a plurality of specific vibration waveforms that generate the tactile sensations, and An algorithm for setting a specific haptic generation mode for each application is included. For the storage means 35, an EEPROM, a ROM, a RAM, or the like is used.

  In this example, the CPU 32 performs display control of the display means 29 and output control of the piezoelectric actuators 25a and 25b based on the position detection information D1, output detection information D2, and flag data D3 output from the A / D driver 31. For example, the control unit 15 reads the control information Dc from the storage unit 35 based on the position detection signal S1 obtained from the touch panel 24 and the input detection signal S2 obtained from the force detection units 55a to 55d, and vibrates the piezoelectric actuators 25a and 25b. Control signals Sa and Sb are supplied.

  For example, the CPU 32 activates the tactile sense “A” when the input detection unit 45 detects the input detection information D2 exceeding the press determination threshold Fth, and then detects the input detection information D2 below the press determination threshold Fth. The actuator drive circuit 37 is controlled to activate the tactile sense “B”. In this way, it is possible to generate different vibration patterns in accordance with the “pressing force” of the operator's finger 30a or the like.

  An actuator drive unit 37 is connected to the CPU 32 and generates vibration control signals Sa and Sb based on the control information Dc from the CPU 32. The vibration control signals Sa and Sb have an output waveform composed of a sine waveform. Two piezoelectric actuators 25a and 25b are connected to the actuator drive unit 37 and vibrate based on respective vibration control signals Sa and Sb.

  In this example, the actuator driving unit 37 stores a pressing determination threshold value Fth corresponding to each application. For example, the pressing determination threshold value Fth is stored in advance in a ROM or the like provided in the actuator drive circuit 37 as a trigger parameter. Under the control of the CPU 32, the actuator drive circuit 37 inputs the input detection information D2, compares the preset pressing determination threshold Fth with the pressure F obtained from the input detection information D2, and satisfies Fth> F. A determination process or a determination process such as Fth ≦ F is executed.

  In this example, when the pressing determination threshold value Fth = 100 [gf] is set, the input detection surface is vibrated based on the vibration pattern for obtaining the tactile sensation of the classic switch. When the pressing determination threshold Fth = 20 [gf] is set, the input detection surface is vibrated based on a vibration pattern for obtaining a tactile sense of the cyber switch.

  In addition to the actuator drive unit 37, the image processing unit 26 is connected to the CPU 32, and the display information D4 for three-dimensionally displaying the button icon 29a and the like is subjected to image processing. Display information D4 after image processing is supplied to the display means 29. In this example, the CPU 32 controls display of the display means 29 so that the button icons in the display screen are displayed in a three-dimensional manner with a perspective in the depth direction.

  The input device 90 configured in this way, for example, presses (contacts) one of a plurality of button icons displayed on the input item selection display screen and presses the touch panel 24 in the Z direction on the display screen. Then, a screen input operation is performed with a tactile sense. The operator 30 receives the vibration of the finger 30a and feels the vibration of each button icon as a tactile sensation.

  The display contents of the display means 29 are determined by the eyes of the operator, and the sound emission from the speakers 36a, 36b and the like is determined by the sounds of the operator's ears. The operation panel 18 is connected to the CPU 32 described above, and is used, for example, when manually inputting the telephone number of the other party. In addition to the icon selection screen described above, the display unit 29 may display an incoming video based on the video signal Sv.

  Also, the antenna 16 shown in FIG. 13 is connected to the antenna duplexer 23, and receives a radio wave from the other party from a base station or the like when an incoming call is received. A receiver 21 is connected to the antenna duplexer 23, receives reception data guided from the antenna 16, demodulates video and audio, and outputs the demodulated video and audio data Din to the CPU 32 and the like. The A video & audio processing unit 44 is connected to the receiving unit 21 through the CPU 32, and digital audio data is converted from digital to analog to output an audio signal Sout, or digital video data is converted from digital to analog and converted into a video signal. Sv is output.

  The audio and video processing unit 44 is connected with loudspeakers 36a and 36b constituting a large sound and a receiver. The speaker 36a is configured to ring a ringtone, a ringing melody, and the like when an incoming call is received. The speaker 36b receives the audio signal Sin and expands the other party's speech 30d. In addition to the speakers 36a and 36b, the microphone 13 constituting the transmitter is connected to the video & audio processing unit 44, and the voice of the operator is collected and the audio signal Sout is output. The video & audio processing unit 44 performs analog / digital conversion on the analog audio signal Sin to be sent to the other party at the time of calling and outputs digital audio data, or analog / digital conversion of the analog video signal Sv. Digital video data is output.

  In addition to the receiving unit 21, the transmitting unit 22 is connected to the CPU 32 to modulate the video and audio data Dout and the like to be sent to the other party, and supply the modulated transmission data to the antenna 16 through the antenna duplexer 23. To be made. The antenna 16 radiates a radio wave supplied from the antenna duplexer 23 toward a base station or the like.

  In addition to the transmission unit 22, a camera 34 is connected to the CPU 32 described above, and a subject is photographed. For example, still image information and operation information are transmitted to the other party through the transmission unit 22. The power supply unit 33 includes a battery 14, and includes a CPU 3215, an operation panel 18, a reception unit 21, a transmission unit 22, an input detection unit 45, piezoelectric actuators 25 a and 25 b, a display unit 29, a camera 34, and a storage unit 35. Power is supplied.

  14A and 14B are waveform diagrams showing examples of vibration patterns related to the tactile senses “A” and B. FIG. 14A and 14B, the horizontal axis is time t. The vertical axis represents the voltage (amplitude Ax) [V] of the vibration control signals Sa, Sb and the like. In this example, it is assumed that a tactile sense “A” is given when the button icon 29a is pressed, and a tactile sense “B” is given when the button icon 29a is released.

  A first vibration pattern Pa shown in FIG. 14A is a waveform that gives a tactile sense “A”. The driving condition “a” for the tactile sense “A” is when the relationship between the pressing determination threshold value Fth and the applied pressure F becomes Fth <F when the button icon 29a or the like is pressed, and is about 0 in the first stage i. .Vibrates in a vibration pattern of frequency fx = 50 Hz, amplitude Ax = 5 μm, number of times Nx = 2 times for 1 second. Hereinafter, it is expressed as [fx Ax Nx] = [50 5 2]. Similarly, in the second stage ii, vibration is performed with a vibration pattern of [fx Ax Nx] = [100 10 2] for about 0.1 second.

  The second vibration pattern Pb shown in FIG. 14B is a waveform that gives a tactile sense “B”. The driving condition b of the tactile sense “B” is when the button icon 29a is released after the button icon 29a or the like is pressed, and the relationship between the pressing determination threshold value Fth and the applied pressure F is Fth> F. In the first stage i, it vibrates at [fx Ax Nx] = [80 8 2] for about 0.1 second, and similarly, in the second stage ii, [fx Ax Nx] is about 0.1 second. = Vibrates with a vibration pattern of [40 8 2]. When the input detection surface is vibrated based on such a vibration pattern, a tactile sensation such as a cyber switch can be obtained.

  15A and 15B are diagrams showing a relationship example (part 1) between the pressing force F and the vibration pattern. In FIG. 15A, the vertical axis represents the applied pressure F, which is obtained from the input detection signal S2 (input detection information D2 after binarization). In FIG. 15B, the vertical axis represents the voltage (amplitude) of the vibration control signal Sa or the like. 15A and 15B, the horizontal axis is time t.

  Generally, there is an input motion peak in button switch operation or the like. It is known that the pressing force F is about 30 [gf] to 240 [gf] when the pressing speed is as designed (operation input speed). The pressure distribution waveform I shown in FIG. 15A reflects the pressure F due to the pressing speed in the Z direction, which is a reference when designing the input device.

  In this example, a pressing determination threshold value Fth is set in advance for the input detection signal S2 obtained from the input detection means 45, and the CPU 32 performs the first vibration at time t11 when the rising waveform of the input detection signal S2 crosses the pressing determination threshold value Fth. The actuator vibration circuit 37 is controlled so that the pattern Pa is generated and the second vibration pattern Pb is generated at time t21 when the falling waveform of the input detection signal S2 crosses the pressing determination threshold value Fth.

  In this way, when the input detection means 45 detects the applied pressure F as a reference at the time of designing the input device, and the CPU 32 or the like detects the pressing determination threshold Fth <the applied pressure F, the tactile sense “A” can be activated. When the pressing determination threshold Fth> the pressure F is detected, the tactile sense “B” can be activated. A non-vibration blank period Tx = T1 is provided between the vibration pattern Pa and the vibration pattern Pb. This blank period Tx is made variable according to the pressing speed in the Z direction.

  16A and 16B are diagrams showing a relationship example (part 2) between the pressing force F and the vibration pattern. In FIG. 16A, the vertical axis represents the applied pressure F, which is obtained from the input detection signal S2 (input detection information D2 after binarization). In FIG. 16B, the vertical axis represents the voltage (amplitude) of the vibration control signal Sa or the like. 16A and 16B, the horizontal axis is time t.

  The pressure distribution waveform II shown in FIG. 16A reflects the pressure F when the button icon or the like is pressed earlier than the reference pressing speed shown in FIG. 15A. Also in this example, similarly to FIG. 15A, the pressing determination threshold value Fth is set in advance for the input detection signal S2 obtained from the input detection means 45, and the CPU 32 determines that the rising waveform of the input detection signal S2 has the pressing determination threshold value Fth. The actuator vibration circuit 37 is controlled so that the vibration pattern Pa is generated at the time t12 that crosses and the vibration pattern Pb is generated at the time t22 when the falling waveform of the input detection signal S2 crosses the pressing determination threshold value Fth.

  In this way, the input detecting means 45 detects the pressing force F when the button icon or the like is pressed earlier than the reference pressing speed, and the CPU 32 or the like detects the pressing determination threshold Fth <the pressing force F. A "can be activated. Further, when the CPU 32 or the like detects the pressing determination threshold Fth> the pressure F, the tactile sense “B” can be activated. A non-vibration blank period Tx = T2 (T2 <T1) is provided between the vibration pattern Pa and the vibration pattern Pb.

  In this way, even when the pressing speed is faster than the pressing speed at the time of design, the tactile sense “A” is transmitted in the first half, and a load with a click feeling can be reached. "Is transmitted, and it is possible to reach a stroke with a click feeling. In this example, when the pressing determination threshold value Fth = 100 [gf] is set, a classic switch tactile sensation can be obtained.

  Next, an example of information processing in the mobile phone 400 will be described. FIG. 17 is a flowchart illustrating an example of information processing in the mobile phone 400 according to the fourth embodiment.

  In this example, the mobile phone 400 includes any one of the touch panel supporting vibrators 100, 200, and 300 according to the first to third embodiments, and inputs on the display screen of the mobile phone 400 with an operator's finger 30a. It is assumed that information is input by pressing the detection surface. The mobile phone 400 has a function (algorithm) for processing a waveform using, for example, a pressure F applied by an operator's finger 30a as a parameter in the same vibration mode. The CPU 32 calculates the applied pressure F from the input detection information D2, makes a determination corresponding to the driving conditions a and b as shown in FIG. 15A, and uses any type of the determination result within the same vibration mode. A tactile sensation corresponding to the movement during the input operation can be generated.

  Under these information processing conditions, the CPU 32 waits for power-on in step G1 of the flowchart shown in FIG. For example, the CPU 32 detects power-on information and activates the system. The power-on information is usually generated when a clock function or the like is activated and a power switch of a sleeping mobile phone or the like is turned on.

  In step G2, the CPU 32 controls the display unit 29 to display an icon screen. For example, the CPU 32 supplies the display data D4 to the display means 29 and displays the input information on the display screen. The input information displayed on the display screen is made visible through the input detection means 45 having an input detection surface. In step G3, the CPU 32 branches the control based on the button icon input mode or other processing mode. The button icon input mode refers to an input operation in which the icon button 29a on the input detection surface is pressed when the button icon is selected.

  When the button icon input mode is set, the button icon 29a and the like are pushed in, so that the process proceeds to step G4 and the CPU 32 calculates the pressure F based on the input detection information D2. At this time, the force detection means 55 a to 55 d detect the pressure F at the pressing position of the operator's finger 30 a on the input detection surface, and output the input detection signal S 2 to the A / D driver 31. The A / D driver 31 A / D converts the input detection signal S2 and transfers the input detection information D2 after the A / D conversion to the CPU 32.

  Then, the process proceeds to step G5, where the CPU 32 compares the pressing force F with the pressing determination threshold value Fth, and determines whether or not these relations satisfy F> Fth. If these relationships satisfy F> Fth, the process proceeds to step G6 to activate the tactile sense “A”. The tactile sense “A” is obtained by vibrating the input detection surface by the piezoelectric actuators 25a and 25b based on the vibration pattern Pa corresponding to the pressure F of the operator's finger 30a.

  For example, the tactile sense “A” vibrates with a vibration pattern of [fx Ax Nx] = [50 5 2] for about 0.1 second in the first stage i with respect to the frequency fx, the amplitude Ax, and the frequency Nx shown in FIG. 17A. In the second stage ii, vibration is performed with a vibration pattern of [fx Ax Nx] = [100 10 2] for about 0.1 seconds. In this way, it is possible to generate different vibration patterns that match the operator's “pressing force” (driving condition a).

  Thereafter, the process proceeds to step G7, where the CPU 32 further detects the applied pressure F. The pressure F is detected by the force detection means 55a to 55d in a state of being separated from the button icon 29a following the depression of the button icon 29a. At this time, the force detection means 55 a to 55 d detect the applied pressure F when the operator moves away from the pressed position of the operator's finger 30 a on the input detection surface, and outputs an input detection signal S 2 to the A / D driver 31. The A / D driver 31 A / D converts the input detection signal S2 and transfers the input detection information D2 after the A / D conversion to the CPU 32.

  In step G8, the CPU 32 compares the pressing force F with the pressing determination threshold value Fth to determine whether or not the relationship is F <Fth. When these relationships satisfy F <Fth, the tactile sense “B” is activated. The tactile sense “B” is obtained by vibrating the input detection surface by the piezoelectric actuators 25a and 25b based on the vibration pattern Pb corresponding to the pressure F of the operator's finger 30a. The tactile sense “B” from which the button icon 29a is released vibrates in a vibration pattern of [fx Ax Nx] = [80 8 2] for about 0.1 second in the first stage i shown in FIG. In the second stage ii, vibration is performed with a vibration pattern of [fx Ax Nx] = [40 8 2] for about 0.1 seconds. In this way, it is possible to generate different vibration patterns that match the operator's “pressing force” (driving condition b).

  Thereafter, the process proceeds to step G10 to confirm the input. At this time, the CPU 32 determines the input information displayed at the pressed position on the input operation surface. Then, the process proceeds to step G12. When another processing mode is selected in step G3, the process proceeds to step G11 to execute another processing mode. Other processing modes include a telephone mode, mail creation, transmission display mode, and the like. The telephone mode includes an operation for making a call to the other party. The button icon 29a and the like include character input items when the telephone mode is selected. After executing another processing mode, the process proceeds to step G12.

  In step G12, the CPU 32 makes an end determination. For example, the power-off information is detected and the information processing is terminated. If the power-off information is not detected, the process returns to step G2, displays an icon screen such as a menu, and repeats the above-described processing.

  As described above, according to the mobile phone 400 with the tactile input function provided with the input device 90 as the fourth embodiment, the touch panel supporting vibration body 300 according to the present invention is provided, and rich in rigidity based on the input operation. A tactile sensation can be presented to the operator's finger 30a from the upper housing 20 to which the (rigid) display means 29 and the touch panel 24 are fixed.

  Therefore, when the piezoelectric actuators 25a and 25b are vibrated, it is possible to ensure high reliability with respect to vibration transmission performance regardless of the posture in which the upper housing 20 is used. In particular, vibrations generated by the piezoelectric actuators 25a and 25B generated in the upper housing 29 and the like for electronic devices that are highly likely to receive vibration or shock as external forces, such as other mobile devices or in-vehicle devices of the mobile phone 400. You will be able to demonstrate the functions that apply.

  The present invention is extremely suitable when applied to an information processing device, a mobile phone, an information portable terminal device, or the like that returns a tactile sensation to an operating body when information is input by selecting an icon from an input display screen.

  3, 3a, 3b ... center electrode (substrate, shim), 8a ... vibration acting part, 10 ... lower housing, 11 ... rotating range mechanism, 15 ... control means, 20 ... upper housing, 21 ... receiving part, 22 ... Transmission unit, 24 ... touch panel (second substrate), 25a, 25b ... piezoelectric actuator (piezoelectric element), 29 ... display means (first substrate), 32 ... CPU (control means), 35 ... storage means, 61a, 61b, 71a, 71b ... Rigid part (gap member), 62a, 62b, 72a, 72b, 82a, 82b ... Component mounting space, 69 ... Main board, 82a-82d ... Columnar part, 90 ... Input device with tactile function, 100, 200, 300 ... Touch panel supporting vibration body (substrate supporting vibration structure), 400 ... Mobile phone (electronic device).

Claims (5)

A structure that vibrates while supporting a substrate,
A plurality of columnar members fixed between the first substrate and the second substrate;
A piezoelectric element provided at a predetermined position between the first substrate and the second substrate and having a vibration support portion and a vibration action portion;
The vibration support portion is bonded to one of the first and second substrates, and the vibration action portion is bonded to the other substrate,
The substrate support vibration structure, wherein the vibration support portion and the vibration action portion are provided along a thickness direction in which the first and second substrates are stacked. The board | substrate support vibration structure of Claim 1. It has a level | step difference in the area | region facing the said vibration support part of the said 1st or 2nd board | substrate. The substrate support vibration structure according to claim 1, wherein the piezoelectric element is provided on a printed circuit board. An input device with a tactile function that presents a tactile sensation to an operating body during information input operation,
Input detection means;
Display means provided below the input detection means;
A substrate support vibration structure for presenting a tactile sensation to the operation body based on an input operation of the input detection means;
The substrate support vibration structure is
A structure that vibrates while supporting the input detection means,
A plurality of columnar members fixed between the input detection means and the display means;
A piezoelectric element provided at a predetermined position between the input detection means and the display means, and having a vibration support portion and a vibration action portion;
The vibration support portion is joined to one of the input detection means and the display means, and a vibration action portion is joined to the other,
The input device with a tactile function, wherein the vibration support unit and the vibration action unit are provided along a thickness direction in which the input detection unit and the display unit are stacked. An electronic device with a tactile input function for presenting a tactile sensation to an operating body during information input operation,
Input detection means;
Display means provided below the input detection means;
An input device with a tactile function having a substrate support vibration structure that presents a tactile sensation to the operation body based on an input operation of the input detection means;
The substrate support vibration structure is
A structure that vibrates while supporting the input detection means,
A plurality of columnar members fixed between the input detection means and the display means;
A piezoelectric element provided at a predetermined position between the input detection means and the display means, and having a vibration support portion and a vibration action portion;
The vibration support portion is joined to one of the input detection means and the display means, and a vibration action portion is joined to the other,
The electronic device in which the vibration support part and the vibration action part are provided along a thickness direction in which the input detection unit and the display unit are stacked.

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