JP2007034991A - Touch panel display device, electronic equipment with touch panel display device, and camera with touch panel display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a touch panel display device which gives a tactile sensation to a finger tip of a user who operates it, the touch panel display device being characterized in that: the constitution can easily be made compact, thin, and lightweight; power consumption is low, many actuators are not necessary; and noise is reduced. <P>SOLUTION: A flat plate type movable panel unit 14 constituted by integrally combining a display panel and a touch panel is supported on a support structure 12 of electronic equipment across elastic body blocks 16 provided at its four corners to be displaced along a plane parallel to the panel surface. A piezoelectric actuator 32 drives the movable panel unit 14, which vibrates along the plane parallel to the panel surface to give a tactile sensation to a finger tip of the user which is in contact with the panel surface. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a touch panel display device, an electronic device including the touch panel display device, and a camera including the touch panel display device.

  A touch panel display device used as an input device or an input / output device can freely configure an input screen by software. Therefore, the touch panel display device has flexibility that cannot be obtained by an input device configured using a mechanical switch. Since it can be compactly configured and has many advantages such as low frequency of mechanical failure, it is now widely used from operation panels of various relatively large machines to very small portable device input / output devices. It's being used.

  In many touch panel display devices, the fingertip of the user who operates the touch panel device only touches a flat and smooth panel surface. Therefore, the click feeling felt by the fingertip when operating an input device configured using a mechanical switch. Thus, there is no feedback to the user by the sense of touch of the fingertip, which makes the operation feeling of the device not relied on. In order to improve this point, a touch panel display device in which a tactile sensation is fed back to the fingertip of an operating user is disclosed in Japanese Patent Laid-Open No. 2003-288158. The touch panel display device disclosed in this publication generates a tactile sensation on a user's fingertip by vibrating a touch panel in contact with the user's fingertip in a direction perpendicular to the panel surface.

JP 2003-288158 A

  However, in the touch panel display device disclosed in the publication, an actuator that generates vibration must be arranged between the touch panel and the display panel, between the display panel and the backlight, or between the backlight and the frame. Therefore, it is difficult to reduce the thickness of the device. In addition, when using a film-type touch panel that is becoming mainstream in mobile devices, the touch panel is directly bonded to the display panel to vibrate the display panel itself. In order to vibrate in the direction perpendicular to the panel surface, a considerably large driving force is required, and thus power consumption must be increased. In addition, when the LCD panel is vibrated in a direction perpendicular to the panel surface, the ribbon cable connected to the LCD panel generates an asymmetrical resistance, so uniform vibration can be achieved with only one actuator. Is difficult to get. Further, when the panel vibrates in a direction perpendicular to the panel surface, a sound is generated by the vibration, which makes it difficult to reduce the noise.

  The present invention has been made in view of such circumstances, and an object of the present invention is to easily reduce the size, the thickness, and the weight of a touch panel display device that generates a tactile sensation on the fingertip of an operating user. Therefore, the power consumption is low, a large number of actuators are not required, and noise reduction is easy.

  In order to achieve the above object, a touch panel display device according to the present invention includes a display panel, a flat movable panel unit having a touch panel, and the movable panel unit being displaceable along a plane parallel to the panel surface. Movable support means supported on a support structure; an actuator that drives and vibrates the movable panel unit; and an actuator drive control means that sends an actuator drive signal to drive and control the actuator. The movable panel unit is vibrated along a plane parallel to the panel surface, thereby generating a tactile sensation at the fingertip of the user in contact with the panel surface of the movable panel unit.

  According to the present invention, there is provided an electronic apparatus including a casing or a frame and a touch panel display device. The touch panel display device includes a display panel, a flat plate-shaped movable panel unit including a touch panel, and the movable panel unit. Movable support means supported on the casing or frame so as to be displaceable along a plane parallel to the panel surface, an actuator that drives and vibrates the movable panel unit, and an actuator drive signal is transmitted to Actuator drive control means for driving control, and the actuator vibrates the movable panel unit along a plane parallel to the panel surface, whereby the fingertip of the user in contact with the panel surface of the movable panel unit is applied. That tactile sensation was generated And features.

  Further, a camera comprising a housing or frame according to the present invention and a monitor device, wherein the monitor device is a touch panel display device, the touch panel display device is a flat movable panel unit having a display panel and a touch panel. A movable support means for supporting the movable panel unit on the casing or the frame so as to be displaceable along a plane parallel to the panel surface, an actuator for driving and vibrating the movable panel unit, and an actuator drive signal Actuator driving control means for driving the actuator to control the actuator, and the actuator contacts the panel surface of the movable panel unit by vibrating the movable panel unit along a plane parallel to the panel surface. User's fingertip Characterized in that so as to generate a haptic.

  According to the present invention, in order to generate a tactile sensation on the user's fingertip in contact with the panel surface, the movable panel unit is not along a direction perpendicular to the panel surface, but along a plane parallel to the panel surface. Since it is made to vibrate, the movable panel unit can be vibrated by a small actuator with a small driving force, and air is not vibrated on the panel surface. Therefore, a touch panel display device that generates a tactile sensation at the user's fingertip is easy to reduce in size, thickness, and weight, consumes less power, does not require a large number of actuators, and is quiet. It can be easy.

  Embodiments of the present invention will be described below. FIG. 1 is a schematic perspective view of a touch panel display device according to an embodiment of the present invention, and FIG. 2 is a schematic side view thereof. These drawings are schematic views for clarifying the principle of the present invention, and the ratio and shape of each member, such as length and thickness, are not accurately drawn. FIG. 3 is a perspective view showing the back side of a camera having a still image shooting function and a moving image shooting function, which is an electronic apparatus according to an embodiment of the present invention. The camera of FIG. 3 includes a housing or a frame and a monitor device, and the monitor device includes the touch panel display device shown in FIGS. 1 and 2. The touch panel display device shown in FIG. 1 and FIG. 2 can be widely used as an input device or an input / output device in various electronic devices including a housing or a frame, in addition to being used as a camera monitor device. It is. In particular, according to the present invention, the touch panel display device can be configured to be lightweight and compact, and can have low power consumption. Therefore, the present invention can exert a great advantage by being applied to a mobile electronic device. .

  In FIG. 1, reference numeral 10 indicates the entire touch panel display device, and reference numeral 12 indicates a housing or frame portion of an electronic device (such as the camera shown in FIG. 3) equipped with the touch panel display device 10. Since it is the casing or frame that ultimately supports the various components of the electronic apparatus, the casing or frame will be referred to as a support structure in the following description. The touch panel display device 10 includes a flat plate-shaped movable panel unit 14 having a rectangular shape in plan view. The movable panel unit 14 is configured by adhering a sheet-type touch panel to the surface of a liquid crystal display panel, Accordingly, the liquid crystal display panel and the touch panel are integrally combined to form the movable panel unit 14, and the surface of the movable panel unit 14 is a panel surface on which the user who wants to operate the touch panel display device 10 touches the fingertip. I am doing.

  The movable panel unit 14 is supported on the support structure 12 via a movable support means so as to be displaceable along a plane parallel to the panel surface. The movable support means is constituted by small elastic blocks 16 provided between the movable panel unit 14 and the support structure 12 at the four corners on the back surface of the movable panel unit 14. When these elastic body blocks 16 are elastically sheared, the movable panel unit 14 is displaced along a plane parallel to the panel surface. It is desirable that the movable support means be such that the movable panel unit 14 can be displaced as easily as possible. For this purpose, the elastic body block 16 may be made of a polymer gel material having an extremely low hardness. . For example, a sheet-like ultra-low hardness polymer gel material provided by Kitagawa Industry Co., Ltd. under the product name “KG Gel (trademark)” is a particularly suitable material for the elastic block 16. is there. A specific example will be described. For example, by cutting a sheet of “KG Gel (trademark)” having a thickness of 1 mm into 2 mm squares, an elastic body block having a height of 1 mm is formed, and upper and lower sides of the elastic body block are formed. By adhering both surfaces to the support structure 12 and the movable panel unit 14 using a double-sided adhesive sheet or the like, the movable support means of the movable panel unit 14 can be suitably configured. Examples of suitable materials for the elastic block 16 other than the polymer gel material include various rubber materials, soft polyethylene, and silicone resin.

  The movable support means for supporting the movable panel unit 14 on the support structure 12 is not limited to the one constituted by the elastic body block 16 described above, and can have various other configurations. Two specific examples are shown schematically in FIGS. 4A and 4B. What is required of the movable support means is to support the movable panel unit 14 so as to be displaceable along a plane parallel to the panel surface, and such displaceable support is described in detail later. In addition, the movable panel unit 14 is caused to vibrate in that direction, and the amplitude of the vibration is usually about several tens μm to several hundreds μm. Further, it is preferable that the movable support means has rather high rigidity in the direction perpendicular to the panel surface of the movable panel unit 14. Therefore, as shown in FIG. 4A, the movable support means may comprise a support structure using rollers or balls provided at a plurality of locations between the movable panel unit 14 and the support structure 12. Good. In FIG. 4A, the support structure 12 is formed with accommodating portions 22 of the rolling elements 20 made of rollers or balls at positions corresponding to the four corners of the back surface of the movable panel unit 14, and the rolling elements 20 accommodated therein. Supports the lower surface of the movable panel unit 14. The diameter of the rolling element (roller or ball) 20 may be, for example, about 0.3 mm to 0.5 mm, and the material may be, for example, steel or hard resin. Further, as shown in FIG. 4B, the movable support means may be formed of a sliding contact structure using a low friction material provided between the movable panel unit 14 and the support structure 12. In FIG. 4B, a coating layer 24 of a low friction material is applied to a part of the back surface of the movable panel unit 14 and the surface of the support structure 12, and the sliding contact structure is formed by the sliding contact of these coating layers. It is configured. The low friction material may be, for example, polytetrafluoroethylene resin.

  The support structure using the elastic body block 16 of FIG. 1 and the support structure using the rolling element of FIG. 7A may be further increased as necessary. For example, the movable panel unit 14 is made thinner and lighter. As a result, if the rigidity of the movable panel unit 14 becomes too small and cannot be reliably supported by only the four corners, these support structures are designated as the movable panel unit 14, the support structure 12, and the like. Six or eight may be provided between them, and the number is arbitrary. Further, when the support mechanism shown in FIGS. 4A and 4B is used, the support structure 12 is provided with a guide structure for guiding the movable panel unit 14 in the displacement direction, and the movable panel unit 14 is supported by the support structure 12. It is recommended that you do not deviate from the above.

  When the movable support means is constituted by the elastic body block 16 as shown in FIG. 1, the movable panel unit in which the elastic force of the elastic body block 16 subjected to elastic shear deformation is displaced along a plane parallel to the panel surface. It acts as a restoring force to return 14 to the neutral position. Whether this restoring force is desirable or not depends on the type of actuator used and how it is mounted. If it is desirable for such restoring force to act, the support shown in FIGS. 4A and 4B can be used. When using the structure, an elastic member or the like for generating a restoring force may be disposed between the side of the movable panel unit 14 and the support structure 12.

  Further, the configuration of the movable panel unit 14 is not limited to that described above. For example, the display panel may be fixed on the support structure 12 without integrating the touch panel and the display panel, and the movable panel unit 14 may be configured with only the touch panel. In such a case, the movable panel unit 14 is arranged so that the touch panel constituting the movable panel unit 14 is positioned so as to overlap the display panel. According to this configuration, only the touch panel is supported so as to be displaceable along a plane parallel to the panel surface. Furthermore, the display panel is not limited to the liquid crystal display panel, and various other display panels can be used. For example, an organic electroluminescent display panel is a display panel suitable for carrying out the present invention.

  As shown in FIGS. 1 and 2, the support structure 12 is provided with a fixed wall 30 so as to face one side of the flat panel-shaped movable panel unit 14 having a rectangular shape in plan view. The fixed wall 30 is defined by a casing or frame of the electronic device, and thus forms a part of the support structure 12. An actuator 32 is disposed between the side of the movable panel unit 14 facing each other and the fixed wall 30. The present invention can be implemented using various types of actuators. For example, a vibration actuator using an electric motor can be used. However, in the case of a lightweight and compact configuration, an elongated plate-like shape is used. It is particularly preferable to use a bending displacement type piezoelectric actuator. As this type of piezoelectric actuator, a bimorph type piezoelectric actuator and a monomorph type piezoelectric actuator are known, and among them, the bimorph type is preferable because it can exhibit a stronger driving force. In the piezoelectric piezoelectric actuator and the laminated bimorph piezoelectric actuator, it can be said that the former can be driven with a lower voltage and is therefore more suitable for use in mobile electronic devices. Therefore, in the illustrated embodiment, a laminated bimorph type piezoelectric actuator is used as the actuator 32. In FIG. 1 and FIG. 2, the dimension in the thickness direction of the actuator 32 is exaggerated for easy understanding of the structure. However, the actual laminated bimorph type piezoelectric actuator is shown in FIG. It is a much thinner and very light actuator.

  As shown in FIG. 1, the long and thin plate-shaped laminated bimorph piezoelectric actuator 32 has both ends in the longitudinal direction connected to the fixed wall 30 via spacer blocks 34. Between the end portions and between each spacer block 34 and the fixed wall 30 are bonded using a double-sided adhesive tape. The actuator 32 is connected to the side of the movable panel unit 14 (the side facing the fixed wall 30) through the spacer block 36 at the center in the longitudinal direction. And between the spacer block 24 and the side of the movable panel unit 14 are bonded using a double-sided adhesive tape. When a voltage is applied to the laminated bimorph type piezoelectric actuator 32 attached between the fixed wall 30 of the support structure 12 and the movable panel unit 14 in this way, the actuator 32 generates a bending displacement, so that the center in the longitudinal direction is generated. The portion is displaced in the direction indicated by the arrow A in FIGS. 1 and 2, and the movable panel unit 14 is displaced in the direction indicated by the arrow B. The direction and magnitude of this displacement correspond to the polarity and magnitude of the applied voltage. Further, the direction of the displacement of the movable panel unit 14 thus generated is a direction along a plane parallel to the panel surface of the movable panel unit 14. Therefore, the actuator 32 drives the movable panel unit 14 in a direction along a plane parallel to the panel surface.

  According to the configuration described above, both ends of the actuator 32 are connected to the fixed wall 30 of the support structure 12 and are attached to both ends, and the movable panel unit 14 is attached by the central portion of the actuator 32. It is designed to be driven. However, how to attach the actuator 32 is not limited to this. For example, contrary to the above configuration, it is needless to say that both ends of the actuator 32 may be connected to the movable panel unit 14 side and the central part may be attached to the fixed wall 30 side. Instead, one end of the actuator 32 can be connected to the fixed wall 30 and the other end can be connected to the movable panel unit 14 to be cantilevered. Further, depending on the structure and shape of the actuator used, it may be desirable to use two or more actuators. Accordingly, in order to achieve the purpose of driving the movable panel unit along a plane parallel to the panel surface by the actuator, the types and number of actuators used and the mounting structure thereof can be various. . However, the mounting structure shown in FIGS. 1 and 2 is considered to be a particularly excellent structure at present.

  As described above, since FIGS. 1 and 2 are schematic views, the ratio and shape of each member, such as length and thickness, are not accurately drawn. Therefore, in order to exemplify what shape each member of the touch panel display device according to the present invention can take, the main part of the specific example shown in FIGS. It showed in. FIG. 5 is a perspective view of the metal plate frame and the movable panel unit 14 constituting the support structure 12 as seen obliquely from below in a state before being assembled to each other. The fixed wall 30 is formed as a part of a metal plate frame. From this figure, it can be clearly seen where the elastic body block 16 and the actuator 32 are attached to the movable panel unit 14. FIG. 6 is a perspective view of the metal plate frame and the movable panel unit 14 constituting the support structure 12 as viewed from obliquely above in a state where they are assembled with each other. It can be seen that the actuator 32 is disposed in a very narrow gap between the side of the movable panel unit 14 and the fixed wall 30. FIG. 7 shows the end of the actuator 32 arranged in the gap between the side of the movable panel unit 14 and the fixed wall 30, the metal plate frame constituting the support structure 12, and the movable panel unit 14. It is the perspective view which expanded and showed the elastic body block 16 arrange | positioned between. FIG. 8 is a perspective view showing the entire actuator 32 disposed in the gap between the side of the movable panel unit 14 and the fixed wall 30.

  FIG. 9 is a block diagram showing a control mechanism and an electronic circuit that are components of the touch panel display device 10. In the figure, reference numeral 50 is a control system for an electronic device equipped with the touch panel display device 10, and the control mechanism and electronic circuit of the touch panel display device 10 are under the control of the control system 50. The control mechanism and electronic circuit of the touch panel display device 10 are connected to a touch panel circuit 52 connected to a touch panel which is one constituent element of the movable panel unit 14 and a liquid crystal display panel which is the other constituent element of the movable panel unit 14. An LCD drive circuit 54 and an actuator drive control mechanism 56 that controls the drive of the actuator 32 are included.

  The touch panel circuit 52 is a circuit attached to a general touch panel, and generates a signal indicating a position where the user's fingertip is in contact with the panel surface of the touch panel by processing a signal obtained from the touch panel. Further, when the touch panel can detect the contact pressure, the touch panel circuit 52 also generates a signal indicating the contact pressure, and if necessary, a signal indicating the contact position on the panel surface. Further processing is performed to generate a signal representing the moving speed and acceleration of the fingertip in contact with the panel surface. A signal generated by the touch panel circuit 52 is supplied to the control system 50 as a touch panel input signal. The LCD drive circuit 54 is a circuit attached to a general liquid crystal display panel, and drives the liquid crystal display panel according to an LCD control signal received from the control system 50 to perform visual display.

  The actuator drive control mechanism 56 is composed of a one-chip computer having a central processing unit and a memory, and an electronic circuit, and includes an interface 58 for receiving a control signal from the control system 50. The control signal received from the control system 50 includes an output timing signal and a waveform selection signal. The actuator drive control mechanism 56 includes a memory 60, and the memory 60 stores data (waveform data) necessary for waveform generation corresponding to each of a plurality of waveforms. The actuator drive control mechanism 56 further reads out data corresponding to the waveform designated by the waveform selection signal from the memory 60, and generates a waveform according to the read waveform data, and a waveform generation mechanism 62 configured by software. An output signal transmission circuit 64 that transmits an output signal having a waveform generated by the mechanism 62 over a period specified by the output timing signal, and amplifies the output signal and supplies it to the piezoelectric actuator 32 as an actuator drive signal. And a power amplifier 66.

  A specific example of the waveform generated by the waveform generation mechanism 62 is shown in FIGS. These waveforms are also the waveforms of the output signals sent from the output signal sending circuit 44 and the waveforms of the actuator drive signals sent from the actuator drive control mechanism 56. As is apparent from the figure, they are vibration waveforms, and the amplitude, period, and waveform may be constant or may vary. The waveform data stored in the memory 60 includes data related to amplitude and period. Then, the waveform data of the waveform specified by the waveform selection signal is read from the waveform data corresponding to the plurality of waveforms stored in the memory 60, and the actuator drive signal having the waveform is supplied to the actuator 32. Therefore, the movable panel unit 14 vibrates along a plane parallel to the panel surface according to the waveform of the actuator drive signal. The vibration of the movable panel unit 14 generates a tactile sensation corresponding to the waveform of the drive signal at the fingertip of the user touching the panel surface of the movable panel unit 14. Therefore, in other words, the actuator drive control mechanism 56 drives the movable panel unit 14 to vibrate with a vibration pattern selected from a plurality of predetermined vibration patterns, and the plurality of predetermined vibrations. The pattern is to generate different tactile sensations on the user's fingertips that are in contact with the panel surface of the movable panel unit 14.

  When the vibration amplitude of the movable panel unit 14 was set to about 20 μm to 50 μm, and what kind of tactile sensation was generated on the fingertip was actually tested, the fingertip touching the panel surface of the movable panel unit 14 is Although it is sensitively perceived that the movable panel unit 14 vibrates, the vibration direction of the movable panel unit 14 cannot be identified. On the other hand, it was found that different tactile sensations occur due to the difference in the waveform of the output signal. It has also been found that depending on the vibration pattern of the movable panel unit 14, it is possible to cause the fingertip to perceive a pseudo unevenness or texture.

  The camera 70 shown in FIG. 3 includes a monitor device 72 on the back surface, and the monitor device 72 is configured by the touch panel display device having the structure described above. The touch panel display device is attached to a frame inside the casing 74, and only the movable panel unit 14 is exposed through a window portion 76 formed on the back side of the casing 74. In the shooting mode, a scene image is displayed on the movable panel unit 14, and various soft keys are displayed in the setting mode. The control system of the camera 70 determines which one based on an input signal supplied from the touch panel circuit (that is, a signal representing the position, moving speed, acceleration, operating force (contact pressure), etc. of the user's fingertip that operates the touch panel). It is detected how the soft key is operated, and the movable panel unit 14 is vibrated with different vibration patterns according to the detection result. Various tactile sensations are generated at the user's fingertip according to the vibration pattern of the movable panel unit 14, and various information can be obtained from the tactile feedback.

  For example, when a setting screen is displayed on the liquid crystal display panel of the movable panel unit 14, when a selectable key is pressed among soft keys in the setting screen, a non-selectable key is displayed. If the tactile feedback is made different from when the key is pressed, when the user presses a non-selectable key, the user can immediately recognize this by the touch of the fingertip. Also, the shutter button of the camera can be a soft key instead of a mechanical switch. In that case, a scene image is displayed on the liquid crystal display panel of the movable panel unit 14 and a shutter button as a soft key is displayed. When the fingertip touches the shutter button of the soft key, the first tactile sensation is displayed. When the feedback is generated and when the user presses the shutter button with a force applied to the fingertip, the shutter is operated and the second haptic feedback is generated, and the second haptic feedback is generated by the mechanical switch. It can be used in such a manner that a tactile sensation when the shutter button is pressed is simulated. In addition, the vibration pattern that determines the tactile sensation generated at the fingertip can be modified in various ways simply by rewriting the waveform data stored in the memory 60. Therefore, various things can be created by software, so that the user's preference and It is also easy to generate tactile feedback that matches the usage situation.

  The touch panel display device 10 according to the present invention has many advantages by making the vibration direction of the movable panel unit 14 a direction along a plane parallel to the panel surface. Some conventional touch panel display devices that generate tactile feedback vibrate the movable panel unit in a direction perpendicular to the panel surface. When vibrating along a plane parallel to the panel surface, the area of the surface that vibrates air is significantly reduced, so the movable panel unit can be vibrated with a smaller driving force of the actuator. In addition, it is easy to reduce the size and power consumption of the actuator, and furthermore, it is possible to provide a touch panel display device with excellent silence.

1 is a schematic perspective view of a touch panel display device according to an embodiment of the present invention. FIG. 2 is a schematic side view of the touch panel display device of FIG. 1. It is the perspective view which showed the back side of the camera which concerns on embodiment of this invention. A and B are schematic views showing two specific examples of the movable support means. It is the perspective view which looked at the frame made from a metal plate which comprises the support structure, and the movable panel unit from diagonally downward in the state before assembling each other. It is the perspective view seen from diagonally upward in the state which mutually assembled | attached the metal plate frame and movable panel unit which comprise the support structure. Elasticity disposed between the end of the actuator disposed in the gap between the side of the movable panel unit and the fixed wall, and the metal plate frame constituting the support structure and the movable panel unit It is the perspective view which expanded and showed the body block. It is the perspective view which showed the whole actuator arrange | positioned in the clearance gap between the side of a movable panel unit, and a fixed wall. It is the figure which showed the control mechanism and electronic circuit which are the components of a touchscreen display apparatus in the form of a block diagram. A to D are diagrams showing specific examples of output signals sent from the output signal sending circuit.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Touch panel display device, 12 ... Support structure, 14 ... Movable panel unit, 16 ... Elastic body block, 30 ... Fixed wall, 32 ... Piezoelectric actuator, 56 ... Actuator drive control mechanism, 70 ... …camera.

Claims (18)

A display panel;
A plate-shaped movable panel unit with a touch panel;
Movable support means for supporting the movable panel unit on a support structure displaceably along a plane parallel to the panel surface;
An actuator for driving and vibrating the movable panel unit;
An actuator drive control means for sending an actuator drive signal to drive-control the actuator;
The actuator vibrates the movable panel unit along a plane parallel to the panel surface, thereby generating a tactile sensation on a user's fingertip that is in contact with the panel surface of the movable panel unit.
A touch panel display device characterized by that.   The touch panel display device according to claim 1, wherein the display panel and the touch panel are integrally coupled to form the movable panel unit.   2. The touch panel display device according to claim 1, wherein the display panel is fixed on the support structure, and the movable panel unit is disposed so that the touch panel is positioned so as to overlap the display panel. .   The actuator drive control means drives the movable panel unit to vibrate with a vibration pattern selected from a plurality of predetermined vibration patterns, and the plurality of predetermined vibration patterns contact the panel surface of the movable panel unit. The touch panel display device according to claim 1, wherein different tactile sensations are generated at a fingertip of a user who is performing the operation.   The actuator drive control means includes a memory storing waveform data corresponding to a plurality of waveforms, a waveform generation mechanism for generating a waveform according to the waveform data read from the memory, and a drive signal having a waveform generated by the waveform generation mechanism The touch panel display device according to claim 4, further comprising means for supplying the actuator to the actuator.   The touch panel display device according to claim 1, wherein the display panel is a liquid crystal display panel or an organic electroluminescence display panel.   The touch panel display device according to claim 1, wherein the movable support unit includes an elastic body block provided at a plurality of locations between the movable panel unit and the support structure.   6. The touch panel display device according to claim 5, wherein the elastic block is made of a polymer gel material.   2. The touch panel display device according to claim 1, wherein the movable support means includes a support structure using a roller or a ball provided at a plurality of locations between the movable panel unit and the support structure.   2. The touch panel display device according to claim 1, wherein the movable support means has a sliding contact structure using a low friction material provided between the movable panel unit and the support structure.   The actuator is an elongated plate-like bending displacement type piezoelectric actuator, and the piezoelectric actuator is one side of the movable panel unit and a part of the support structure provided facing the side. The piezoelectric actuator is disposed between the fixed portion, and both ends of the piezoelectric actuator in the longitudinal direction are connected to one of the side and the fixed portion of the movable panel unit, and the central portion in the longitudinal direction is the movable panel unit. The touch panel display device according to claim 1, wherein the touch panel display device is connected to the other of the side and the fixing portion.   The touch panel display device according to claim 11, wherein the piezoelectric actuator is a laminated bimorph piezoelectric actuator. In an electronic device comprising a housing or frame and a touch panel display device,
The touch panel display device includes a display panel, a flat plate-shaped movable panel unit provided with a touch panel, and a movable supporting the movable panel unit on the casing or the frame so as to be displaceable along a plane parallel to the panel surface. Support means, an actuator that drives and vibrates the movable panel unit, and actuator drive control means that sends an actuator drive signal to drive and control the actuator, and the actuator places the movable panel unit on its panel surface. By vibrating along a parallel plane, a tactile sensation is generated at the fingertip of the user in contact with the panel surface of the movable panel unit.
An electronic device characterized by that.   14. The electronic apparatus according to claim 13, wherein the display panel and the touch panel are integrally coupled to constitute the movable panel unit.   14. The electronic apparatus according to claim 13, wherein the display panel is fixed on the casing or frame, and the movable panel unit is arranged so that the touch panel is positioned to overlap the display panel. . In a camera comprising a housing or frame and a monitor device, wherein the monitor device is a touch panel display device,
The touch panel display device includes a display panel, a flat plate-shaped movable panel unit provided with a touch panel, and a movable supporting the movable panel unit on the casing or the frame so as to be displaceable along a plane parallel to the panel surface. Support means, an actuator that drives and vibrates the movable panel unit, and actuator drive control means that sends an actuator drive signal to drive and control the actuator, and the actuator places the movable panel unit on its panel surface. By vibrating along a parallel plane, a tactile sensation is generated at the fingertip of the user in contact with the panel surface of the movable panel unit.
A camera characterized by that.   The camera according to claim 16, wherein the movable panel unit is configured by integrally combining the display panel and the touch panel.   The camera according to claim 16, wherein the display panel is fixed on the casing or frame, and the movable panel unit is arranged so that the touch panel is positioned so as to overlap the display panel.

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