TW201712509A - Input device - Google Patents

Abstract

An input device (100) according to this embodiment is provided with: a touch panel (2) for receiving touch input; a housing (6) having a securing step (7) that is provided on the outer peripheral edge (2P) of the touch panel (2) so as to face the back surface (2R) of the touch panel (2), except for a portion of the outer peripheral edge (2P) of the touch panel (2); a first securing member (5) provided to secure the touch panel (2) to the securing step (7) of the housing, the first securing member (5) being formed along the outer peripheral edge (2P) except for the portion of the outer peripheral edge (2P); and a vibration generation member (1) disposed on the back surface side of the touch panel (2) in the one portion of the outer peripheral edge (2P), the vibration generation member (1) causing the touch panel (2) to vibrate.

Description

Input device

The present invention relates to an input device.

In Patent Document 1, a switch display panel having a touch panel, an oscillation source, a display panel, and a case has been disclosed. The housing houses the touch panel, the vibration source, and the display panel. The vibration source causes the touch panel to vibrate as a whole. The vibration source is disposed between the peripheral portion of the touch panel and the housing. Furthermore, an elastic body is provided at four corners of the touch panel. Then, the peripheral portion of the touch panel is supported by the housing.

[Previous Technical Literature]

[Patent Document]

Patent Document 1: Japanese Laid-Open Patent Publication No. Hei 09-161602.

In Patent Document 1, a vibration source is mounted between a housing and a touch panel. Further, this document describes that a plurality of vibration sources are dispersedly disposed on a peripheral portion of the touch panel. Moreover, the touch panel is floated from the housing through a plurality of bullets The body supports its peripheral portion from the housing. Each elastic system is installed near the four corners of the touch panel.

The touch panel is fixed to the housing by the elastic body, and the vibration source is provided on the touch panel (see FIG. 1 of Patent Document 1). Therefore, the vibration of the vibration source cannot be efficiently transmitted to the touch panel. Furthermore, the touch panel is supported by the housing through the elastic body. As a result, the in-plane deviation occurs in the vibration. As described above, in the configuration of Patent Document 1, it is difficult to appropriately oscillate the panel.

The present invention provides an input device that can appropriately vibrate a panel.

An input device according to an aspect of the present invention includes: a panel for accepting a touch input; and a frame having a fixed segment disposed on the front panel in a manner opposite to a rear surface of the front panel a peripheral portion disposed at a portion other than a portion of the outer peripheral edge of the panel; the first fixing material is provided to fix the panel to the fixing portion of the frame body, and is formed along the outer peripheral edge a portion other than the aforementioned outer peripheral edge; and the vibration generating member is disposed on a rear surface side of the outer peripheral edge of the outer peripheral edge to vibrate the panel. According to this configuration, the panel can be appropriately vibrated.

The input device may further include: a rigid body formed along the outer peripheral edge and disposed between the fixed section and the panel; and a second fixing material formed along the outer peripheral edge and disposed on the rigid body and The rigid plates and the front panel are fixed between the panels; the first fixing material may also have elasticity and be disposed between the rigid body and the fixing portion for fixing the rigid body and the frame. According to this configuration, the panel can be appropriately vibrated.

In the above input device, the rigid body and the second fixing material may be discontinuous in the part of the outer peripheral edge; and in the part of the outer peripheral edge, the vibration generating member may be attached to the aforementioned panel Rear surface. According to this configuration, the panel can be appropriately vibrated.

In the above input device, the rigid body and the second fixing material may be continuously provided over the entire circumference of the outer periphery; and the rigid body may be provided with an angle portion which is attached to the outer periphery. The part extends toward the bottom side of the frame body, and the vibration generating member may be fixed to the corner portion. According to this configuration, the panel can be appropriately vibrated.

In the above input device, the first fixing material may be attached to the fixing portion and the front panel; and the vibration generating member may be attached to a rear surface of the panel. According to this configuration, the panel can be appropriately vibrated.

In the above input device, the panel may have a rectangular shape in plan view, and the fixing portion may be provided on a side other than one of the four sides of the periphery of the panel. According to this configuration, the panel can be appropriately vibrated.

In the above input device, the panel may have a rectangular shape in plan view, and the fixing portion and the first fixing material may be provided at four corners of the panel. According to this configuration, the panel can be appropriately vibrated.

The input device of the present invention has a panel for receiving touch input, and a frame having a fixed segment disposed on the panel in a manner opposite to the rear surface of the panel. a rigid body disposed between the front panel and the fixed section and formed along an outer circumference of the panel; a first fixing material disposed between the rigid body and the fixed section for fixing the rigid body and the foregoing The second fixing material is disposed between the rear surface of the panel and the rigid body at the outer peripheral edge to fix the rigid body and the panel, and the vibration generating member is attached to the rear surface of the panel. According to this configuration, the panel can be appropriately vibrated.

In the above input device, the fixed section may be continuously provided over the entire circumference of the outer circumference. According to this configuration, the panel can be appropriately vibrated.

In the above input device, the vibration generating member may be provided only at one end of the panel. According to this configuration, the panel can be appropriately vibrated.

According to the present invention, it is possible to provide an input device that can appropriately vibrate the panel.

1‧‧‧Vibration generating components

1g‧‧‧weight

2‧‧‧ touch panel

2P‧‧‧ outer periphery

2F‧‧‧ front surface

2R‧‧‧ rear surface

3, 31‧‧‧ second fixed material

3a‧‧‧Open Department

4, 41, 42‧‧‧ rigid body

4a‧‧‧Open Department

42b‧‧‧Cornea

5, 51‧‧‧ first fixed material

5a‧‧‧Open Department

6‧‧‧ frame

6b‧‧‧ bottom

6c‧‧‧ side wall

7, 71‧‧‧ fixed section

7a‧‧ Open Department

8‧‧‧Internal space

22, 23‧‧‧ Festival

24, 25‧‧‧Bend shape

100, 200, 300, 400‧‧‧ input devices

500‧‧‧ input device

A‧‧‧ non-fixed parts

Fig. 1 is an exploded perspective view showing the input device of the first embodiment.

Fig. 2 is a view schematically showing an XY plan view of the input device of the first embodiment.

Figure 3 is a cross-sectional view taken along line III-III of Figure 2;

Figure 4 is a cross-sectional view taken along line IV-IV of Figure 2.

Fig. 5 is an exploded perspective view showing the input device of the second embodiment.

Fig. 6 is a view schematically showing a YZ of the input device of the second embodiment.

Fig. 7 is an exploded perspective view showing the input device of the third embodiment.

Fig. 8 is a plan view schematically showing YZ of the input device of the third embodiment.

Fig. 9 is an exploded perspective view showing the input device of the fourth embodiment.

Fig. 10 is a view schematically showing a YZ of the input device of the fourth embodiment.

Figure 11 is an exploded perspective view showing the configuration of the input device of the comparative example. Figure.

Fig. 12 is a view schematically showing a YZ of the input device of the comparative example.

Figure 13 is a schematic diagram showing the ideal vibration of the input device.

Fig. 14 is a view showing the vibration of the comparative example.

Fig. 15 is a view showing the vibration of the comparative example.

Fig. 16 is a view showing the vibration of the comparative example.

Fig. 17 is a view showing the measurement results of the vibration acceleration at the center of the panel in the embodiment and the comparative example.

Fig. 18 is a XY plan view schematically showing the planar shape of the non-fixed portion A and the first fixing member 5.

Fig. 19 is a XY plan view schematically showing the planar shape of the non-fixed portion A and the first fixing member 5.

[Embodiment 1]

The input device of this embodiment is an input device having a touch panel. Furthermore, in order to provide the input device with a haptic feedback function, the input device is provided with a vibration generating member (vibration source). Hereinafter, an input device according to the first embodiment will be described with reference to Figs. 1 to 4 .

FIG. 1 is an exploded perspective view showing the configuration of the input device 100. FIG. 2 is a plan view schematically showing the configuration of the input device 100. Figure 3 is a cross-sectional view taken along line III-III of Figure 2; Figure 4 is a cross-sectional view taken along line IV-IV of Figure 2.

In addition, for clarification of the description, a three-dimensional orthogonal coordinate system is shown in the figure. The Z direction refers to a direction perpendicular to the front surface (touch input surface) of the touch panel 2. Also, the +Z side refers to the front surface side that accepts the touch input. The X direction and the Y direction refer to the direction along the end side of the rectangular touch panel 2. FIG. 2 is a XY plan view schematically showing the configuration of the input device 100 on the XY plane. 3 is a YZ cross section showing the central portion of the input device 100, and FIG. 4 is a YZ cross section showing the end portion of the input device 100.

The input device 100 includes a vibration generating member 1 , a touch panel 2 , a housing 6 , and a first fixing member 5 . The touch panel 2 accepts touch input from a user. For example, a touch panel 2 such as a resistive film type or a capacitive type can be used.

The touch panel 2 has a flat plate shape. Thereby, the touch panel 2 has the front surface 2F and the rear surface 2R which are disposed opposite to each other. The front surface 2F and the rear surface 2R are planes that are parallel to each other. The front surface 2F refers to the XY plane on the +Z side, and the rear surface 2R refers to the XY plane on the -Z side. The front surface 2F is a touch input surface that accepts input. That is, the user touches the front surface 2F of the touch panel 2 when inputting.

The touch panel 2 has a rectangular shape in the XY plan view. Therefore, the outer peripheral edge 2P of the touch panel 2 has a rectangular frame shape. That is, the outer peripheral edge 2P of the touch panel 2 is formed as follows: the two end sides along the X direction, and along The two ends of the Y direction are formed in a continuous rectangular shape. Further, the Y direction is the long side of the touch panel 2, and the X direction is the short side. Further, the rectangle referred to in the present specification is not limited to a rectangle having long sides and short sides having different lengths, and includes squares having the same length of all four sides.

In the outer peripheral edge 2P of the touch panel 2, the vibration generating member 1 is attached to the rear surface 2R of the touch panel 2. For example, the vibration generating member 1 is provided only at one end of the touch panel 2 . The vibration generating member 1 has an actuator such as a piezoelectric element. The vibration generating member 1 generates vibration in the Z direction. The vibration generated by the vibration generating member 1 is transmitted to the touch panel 2. Thereby, since the touch panel 2 vibrates, the input device 100 can have a tactile feedback function.

The housing 6 houses the touch panel 2 . Specifically, the frame 6 has a box shape, and its XY plane on the +Z side is in an open state. That is, the casing 6 is a rectangular parallelepiped box that is open on one side. The frame 6 has a bottom portion 6b disposed on the rear surface side (-Z side), and a side wall 6c extending from the bottom portion 6b toward the +Z side. Then, the surface opposite to the bottom portion 6b becomes an open surface. The frame 6 is formed of a resin such as ABS resin.

The touch panel 2 is disposed on the open surface of the casing 6. That is, the touch panel 2 covers the open surface of the frame 6. Thereby, the internal space 8 surrounded by the side wall 6c of the frame 6, the bottom part 6b, and the back surface 2R of the touch panel 2 is formed. Electronic parts and electricity (not shown) are arranged in the internal space 8 Roads, wiring, display panels, etc.

Further, a fixing portion 7 is provided on the inner side of the casing 6. The fixing section 7 is in contact with the inner wall surface of the side wall 6c. As shown in FIGS. 3 and 4, the fixed section 7 is lower than the side wall 6c of the casing 6. The fixing portion 7 is disposed on the outer peripheral edge 2P of the touch panel 2 and the rear surface 2R of the touch panel 2 .

A first fixing material 5 is disposed between the fixed section 7 and the touch panel 2 . The first fixing material 5 means a double-sided tape, an adhesive, or the like. Further, the first fixing member 5 may also include an elastic layer such as a urethane resin or a sponge. Thereby, the first fixing material 5 can be made elastic.

The first fixing material 5 fixes the touch panel 2 to the frame 6 . Specifically, in the outer peripheral edge 2P of the touch panel 2, the first fixing material 5 is attached to the rear surface 2R of the touch surface 2. Furthermore, the first fixing material 5 is also followed by the upper surface of the fixing section 7. Thus, the touch panel 2 and the frame 6 can be followed by the first fixing material 5. That is, the touch panel 2 and the frame 6 are fixed by the first fixing material 5. Therefore, the touch panel 2 and the fixed section 7 are disposed to face each other through the first fixing material 5.

Further, the first fixing material 5 is provided along the outer periphery 2P of the touch panel 2 . Further, the first fixing member 5 is provided with an opening portion 5a. The opening portion 5a is one of the four end sides constituting the outer periphery 2P of the touch panel 2 The end edge corresponds. Therefore, the first fixing material 5 has a substantially U-shape in the XY plan view. One of the two end sides parallel to the X direction on the -Y side corresponds to the open portion 5a. In the XY plan view, the first fixing material 5 is discontinuous.

In the XY plan view, the fixed section 7 has the same shape as the first fixing material 5. Specifically, the fixed section 7 is provided along the outer peripheral edge 2P of the touch panel 2 . Further, an opening portion 7a is provided in the fixed section 7. The open portion 7a corresponds to one of the four end sides constituting the outer periphery 2P of the touch panel 2. Therefore, the fixed section 7 is substantially U-shaped in the XY plan view. One of the two end sides parallel to the X direction on the -Y side corresponds to the open portion 7a. Therefore, in the XY plan view, the open portion 7a and the open portion 5a overlap. The fixed section 7 is U-shaped in substantially the same size as the first fixing material 5. In the XY plan view, the fixed section 7 is discontinuous. The first fixing material 5 is provided along the fixed section 7.

As described above, the first fixing member 5 and the fixing portion 7 have the opening portion 5a and the opening portion 7a, respectively. As a result, the non-fixed portion A is formed on the outer peripheral edge 2P of the touch panel 2. In the non-fixed portion A, the touch panel 2 is fixed to the frame 6 while the touch panel 2 is free. Specifically, the three end sides of the outer peripheral edge 2P of the touch panel 2 are restrained, and the one end side is in a free state. Thus, in one of the outer peripheral edges 2P of the rectangular frame shape, the touch panel 2 is in a free state.

The first fixing material 5 is provided integrally with the end side other than the end side of the non-fixed portion A. Therefore, in addition to the non-fixed portion A, as shown in FIG. 4, the fixed portion 7 and the touch panel 2 on the entire end side are fixed by the first fixing member 5. Thereby, the touch panel 2 can be surely restrained. Then, the vibration generating member 1 is attached to the non-fixed portion A. In other words, the vibration generating member 1 is provided in a portion where the touch panel 2 is in a free state.

In this manner, a portion of the outer peripheral edge 2P of the touch panel 2 is referred to as a non-fixed portion A. Specifically, the non-fixed portion A is formed only at one end of the outer peripheral edge 2P of the touch panel 2. By doing so, the antinode of vibration of the vibration of the touch panel 2 can be brought close to the mounting position of the vibration generating member 1. Therefore, the vibration transmission efficiency and the vibration amount can be improved. That is, the position of the antinode of the basic vibration mode of the touch panel 2 is close to the non-fixed portion A. For this reason, even if the vibration generating member 1 is attached to the outer peripheral edge 2P, it is possible to ensure excellent vibration transmission efficiency.

Further, by providing the non-fixed portion A, the touch panel 2 can be linearly elastically deformed at the mounting position of the vibration generating member 1. Therefore, it is possible to reduce distortion and reduce high-frequency distortion. The non-fixed portion A of the outer peripheral edge 2P is easily bent. Therefore, the touch panel 2 can be linearly vibrated, and the touch panel 2 can be vibrated in accordance with an input signal input to the vibration generating member 1.

Further, by providing the non-fixed portion A, it is possible to prevent the vibration of the vibration generating portion 1 from leaking to the casing 6. Also, you can reduce the abnormal sound. The sound of high-frequency components caused by vibrations with nonlinear distortion is also not generated. Further, since the vibration of the vibration generating member 1 is not easily transmitted to the casing 6, no abnormal sound is generated.

In the outer peripheral edge 2P of the touch panel 2, by arranging the vibration generating member 1 on the rear surface 2R of the touch panel 2, the narrow frame of the touch panel 2 can be realized. The vibration generating member 1 can be mounted near the end surface of the touch panel 2. Therefore, it is also possible to provide a display panel having a large screen in which the entire casing 6 is utilized.

With such a configuration, desired vibration characteristics can be obtained. Thus, an excellent tactile feedback function can be achieved. In the above description, the vibration generating member 1 is assumed to be attached to the rear surface 2R of the touch panel 2, but may be attached to the rear surface of the display panel. That is, the touch panel 2 can also be a touch panel with a display panel. In this case, the display panel is attached to the inner side of the outer peripheral edge 2P of the touch panel 2, and the vibration generating member 1 is attached to the outer side of the display panel.

[Embodiment 2]

The input device 200 according to the second embodiment will be described with reference to Figs. 5 and 6 . FIG. 5 is an exploded perspective view showing the configuration of the input device 200. Figure. FIG. 6 is a YZ cross-sectional view showing the configuration of the input device 200. The basic configuration of the input device 200 is the same as that of the input device 100 shown in the first embodiment. Therefore, the description of the contents common to the first embodiment will be appropriately omitted.

In the second embodiment, the second fixing material 3 and the rigid body 4 are added to the configuration of the first embodiment. In addition, since the configuration other than the second fixing material 3 and the rigid body 4 is the same as that of the first embodiment, the description thereof will be omitted as appropriate.

A second fixing material 3 and a rigid body 4 are disposed between the touch panel 2 and the first fixing material 5. The second fixing material 3 is disposed on the front side of the rigid body 4. Specifically, a second fixing material 3 is disposed between the touch panel 2 and the rigid body 4 . A rigid body 4 is disposed between the second fixing member 3 and the first fixing member 5.

The rigid body 4 is, for example, a metal plate such as aluminum. The second fixing material 3 is an adhesive or a double-sided tape or the like similarly to the first fixing material 5. The second fixing material 3 is followed by the touch panel 2 and the rigid body 4. Therefore, the second fixing material 3 fixes the touch panel 2 and the rigid body 4. Further, the second fixing member 3 may have elasticity similarly to the first fixing member 5.

The first fixing material 5 has elasticity. Specifically, the first fixing material 5 is a layer having elasticity such as a urethane resin or a sponge. The first fixing material 5 is disposed between the rigid body 4 and the fixed section 7 for fixing the rigid body 4 and the frame 6. That is, the first fixing material 5 is followed by the rigid body 4 and the fixed section 7.

The XY plane shape of the rigid body 4 and the second fixing member 3 is the same as that of the first fixing material 5. That is, the rigid body 4 and the second fixing material 3 are provided along the outer periphery 2P of the touch panel 2. Then, the second fixing material 3 is provided with an opening portion 3a. The rigid body 4 is provided with an opening portion 4a. The open portions 3a and 4a correspond to one of the four end sides constituting the outer periphery 2P of the touch panel 2. Therefore, the second fixing member 3 and the rigid body 4 have a substantially U-shape in the XY plan view. One of the two end sides parallel to the X direction on the -Y side corresponds to the open portions 3a, 4a. The open portions 3a and 4a overlap the open portions 7a and 5a in plan view. In the XY plan view, the rigid body 4 and the second fixing material 3 are discontinuous.

By mounting the rigid body 4, the secondary resonance frequency in the natural vibration mode of the touch panel 2 can be made higher than the use frequency (for example, 200 Hz). Therefore, the node of vibration of the vibration can be eliminated in the plane of the touch panel 2. Thereby, the entire surface of the touch panel 2 can be vibrated, and the in-plane variation can be reduced. That is, no vibration is generated in the surface of the touch panel 2, and a portion having a small amount of vibration is not formed. Thereby, the touch can be obtained in all of the faces of the touch panel 2.

Moreover, the touch panel 2 is passed through the first fixing material 5 having elasticity Installed in the frame 6. As a result, the vibration of the touch panel 2 is less likely to leak to the housing 6. Further, the vibration mode of the touch panel 2 is increased in a mode in which vibration is vibrated in parallel in the Z-axis direction in the bending vibration. Therefore, the in-plane of the touch panel 2 can be uniformly vibrated uniformly. Further, since the non-fixed portion A is provided, the same effect as that of the first embodiment can be obtained.

[Embodiment 3]

The input device 300 according to the third embodiment will be described with reference to Figs. 7 and 8 . Fig. 7 is an exploded perspective view showing the configuration of the input device 300 of the third embodiment. FIG. 8 is a YZ cross-sectional view showing the configuration of the input device 300. The basic configuration of the input device 300 is the same as that of the input devices 100 and 200 shown in the first and second embodiments. Therefore, the description of the portions common to the first and second embodiments will be appropriately omitted.

In the present embodiment, the fixing section 7, the first fixing material 5, the rigid body 4, and the second fixing material 3 shown in the second embodiment are replaced with the fixing section 71, the first fixing material 51, the rigid body 41, and the second. Fixing material 31. The fixing section 71, the first fixing material 51, the rigid body 41, and the second fixing material 31 have different shapes from the fixing section 7, the first fixing material 5, the rigid body 4, and the second fixing material 3.

Since the shapes of the fixed portion 71, the first fixing member 51, the rigid body 41, and the second fixing member 31 are the same as those of the above-described embodiment, the description thereof will be omitted as appropriate. For example, the materials, configurations, and The function is the same as in the first and second embodiments.

The fixed portion 71, the first fixing member 51, the rigid body 41, and the second fixing member 31 are not provided with open portions, respectively. Therefore, the fixed section 71, the first fixing material 51, the rigid body 41, and the second fixing material 31 are each formed into a closed rectangular frame shape. The fixed section 71, the first fixing material 51, the rigid body 41, and the second fixing material 31 are each substantially in the same shape. The fixing portion 71, the first fixing member 51, the rigid body 41, and the second fixing member 31 are continuously formed over the entire circumference of the outer peripheral edge 2P of the touch panel 2.

Similarly to the second embodiment, the second fixing member 31 is followed by the touch panel 2 and the rigid body 41. The first fixing material 51 is followed by the rigid body 41 and the fixing section 71. Therefore, the outer periphery 2P of the touch panel 2 as a whole is restrained.

Then, the vibration generating member 1 is disposed inside the rectangular frame-shaped fixing portion 71, the first fixing member 51, the rigid body 41, and the second fixing member 31. For example, in a portion inside the rectangular frame-shaped first fixing material 51, the vibration generating member 1 is attached to the rear surface 2R of the touch panel 2.

By mounting the rigid body 41, the secondary resonance frequency in the natural vibration mode of the touch panel 2 can be made higher than the frequency used (for example, 200 Hz). Therefore, no vibration is generated in the surface of the touch panel 2, and a portion having a small amount of vibration is not formed. Thereby, all of the inside of the touch panel 2 can be Get a touch.

Further, the touch panel 2 is attached to the frame 6 through the first fixing material 51 having elasticity. As a result, the vibration of the touch panel 2 is less likely to leak to the housing 6. Further, the vibration mode of the touch panel 2 is added with a mode of vibrating in parallel in the Z-axis direction in the bending vibration. Therefore, the in-plane of the touch panel 2 can be uniformly vibrated uniformly.

[Embodiment 4]

The input device 400 according to the fourth embodiment will be described with reference to Figs. 9 and 10 . Fig. 9 is an exploded perspective view showing the configuration of the input device 400 of the fourth embodiment. FIG. 10 is a YZ cross-sectional view showing the configuration of the input device 400. The basic configuration of the input device 400 is the same as that of the input devices 100, 200, and 300 shown in the first to third embodiments. Therefore, the description of the contents common to the first to third embodiments will be appropriately omitted.

In the present embodiment, the rigid body 41 is replaced with the rigid body 42. Then, there is a feature in the shape of the rigid body 42. Further, in the present embodiment, the second fixing member 31 has a square shape as shown in the third embodiment. The rigid body 42 and the second fixing material 31 are continuously provided over the entire circumference of the outer circumference. Further, the fixed section 7 and the first fixing member 5 are the same as those shown in the first and second embodiments. Specifically, the fixed section 7 and the first fixing material 5 have open portions 7a, 5a. In the XY plan view, the fixed section 7 and the first fixing material 5 are U-shaped.

Similarly to the third embodiment, the rigid body 42 has a closed rectangular frame shape. Further, the rigid body 42 has an angle portion 42b. The horn portion 42b extends from the rectangular frame portion toward the -Z side. The rigid body 42 is provided with an angle portion 42b that extends toward a bottom portion 6b side of the frame 6 at a portion of the outer peripheral edge 2P of the touch panel 2. The angle portion 42b is disposed corresponding to the opening portions 5a and 7a.

Then, the vibration generating member 1 is attached to the angle portion 42b of the rigid body 42. That is, in the present embodiment, the vibration generating member 1 is not attached to the rear surface 2R of the touch panel 2. The vibration generating member 1 generates linear vibration along the Y direction.

The vibration of the vibration generating member 1 is transmitted to the touch panel 2 through the corner portion 42b which is a part of the rigid body 42. The angle portion 42b converts the linear vibration of the vibration generating member 1 into rotational vibration. Here, the angle portion 42b converts the linear vibration into a rotational vibration that is a rotation axis in a direction parallel to the X-axis. As described above, since the rotational vibration can be transmitted to the touch panel 2, the touch panel 2 is easily subjected to buckling vibration (bending vibration). Therefore, the touch panel 2 can be largely vibrated and excellent vibration characteristics can be obtained.

Further, in the outer peripheral edge 2P on the side opposite to the non-fixed portion A, the rigid body 42 is formed in a U-shaped cross section. It is possible to reduce the weight of the rigid body 42 by forming a U-shaped cross section.

As summarized above, in the first, second, and fourth embodiments, the first fixing member 5 and the fixed portion 7 are provided with the opening portions 5a and 7a. Therefore, a portion of the outer peripheral edge 2P of the touch panel 2 is regarded as a non-fixed portion A. Thereby, the antinode of the vibration of the touch panel 2 can be brought close to the mounting position of the vibration generating member 1. Therefore, the vibration transmission efficiency and the vibration amount can be improved. That is, the position of the antinode of the basic vibration mode of the touch panel 2 is close to the non-fixed portion A. For this reason, even if the vibration generating member 1 is attached to the outer periphery P, it is possible to ensure excellent vibration transmission efficiency.

Further, by providing the non-fixed portion A on the touch panel 2, the touch panel 2 can be linearly elastically deformed in the mounting position of the vibration generating member 1. Therefore, it is possible to reduce distortion and reduce high-frequency distortion. The non-fixed portion A of the outer peripheral edge 2P is easily bent. Therefore, the touch panel 2 can be linearly vibrated, and the touch panel 2 can be vibrated in accordance with an input signal.

Further, by providing the non-fixed portion A, it is possible to prevent the vibration of the vibration generating member 1 from leaking to the frame 6. Can reduce the abnormal sound. The sound of high-frequency components caused by vibrations with nonlinear distortion is also not generated. Further, the vibration of the vibration generating member 1 is not easily transmitted to the casing 6, and abnormal noise does not occur.

Further, in the second, third, and fourth embodiments, the touch panel 2 and the frame 6 can be fixed by the rigid bodies 4, 41, and 42. With this, you can touch The resonance frequency of the second or third or more of the natural vibration modes of the panel 2 is higher than the frequency of use, and it is possible to prevent the vibration of the surface of the touch panel 2 from being generated. Thus, the entire touch panel 2 can be vibrated.

Further, by making the first fixing members 5, 51 elastic, the vibration of the touch panel 2 is less likely to leak to the casing 6. Further, the vibration mode of the touch panel 2 is increased in a mode in which vibration is vibrated in parallel in the Z-axis direction in the bending vibration. Therefore, the in-plane of the touch panel 2 can be uniformly vibrated uniformly.

Next, the configuration of the comparative example and the problems occurring in the comparative example will be described. First, the configuration of a comparative example will be described with reference to Figs. 11 and 12 . 11 is an exploded perspective view showing a configuration of an input device 500 of a comparative example, and FIG. 12 is a YZ cross-sectional view showing a configuration of the input device 500.

In the comparative example shown in FIGS. 11 and 12 , the input device 500 includes the housing 6 , the touch panel 2 , and the first fixing material 51 . That is, the rigid body 4, 41 is not provided in the input device 500. Moreover, the frame 6 and the touch panel 2 are followed by the first fixing material 51. The first fixing member 51 and the fixing portion 71 are formed in a continuous rectangular frame shape. Therefore, the input device 500 is not provided with the non-fixed portion A. Further, the vibration generating member 1 is provided on the rear surface 2R of the touch panel 2.

Hereinafter, regarding the problem points generated in the comparative example, FIG. 13 is used. This will be described with reference to FIG. 16. 13 to 16 are views showing the antinodes of the vibration of the touch panel 2 and the positions of the nodes 22 and 23 in the comparative example. Furthermore, the curved shape of the touch panel 2 is shown in FIGS. 13 to 16. That is, in FIGS. 13 to 16, the curved shape 24 of the touch panel 2 as seen from the X direction and the curved shape 25 of the touch panel 2 as seen from the Y direction are respectively displayed.

The touch panel 2 has a natural vibration mode that is determined depending on the material and shape thereof and the fixed state of the outer periphery of the touch panel 2. When the touch panel 2 is vibrated in the basic vibration mode, as shown in FIG. 13, it is preferable to mount the vibration generating member 1 at a position closer to the center of the touch panel 2 which is the position of the antinode of the vibration. That is, the vibration generating member 1 is attached to the center of the touch panel 2, and the vibration transmission efficiency is excellent.

However, when the touch panel 2 is used in combination with a display panel such as an LCD (Liquid Crystal Display), it is necessary to mount a vibration generating member in the vicinity of the outer periphery of the panel so as not to hinder the display of the LCD or the like. . As a result, the vibration transmission efficiency is deteriorated, and the touch panel 2 becomes extremely difficult to vibrate. When the vibration generating member 1 is attached to the vicinity of the outer periphery of the touch panel 2, in the comparative example of FIGS. 11 and 12, the portion where the touch panel 2 is fixed is vibrated by the vibration generating member. For this reason, the touch panel 2 will generate a nonlinear vibration including harmonic distortion, and it is difficult to vibrate the panel in accordance with a signal input to the vibration generating member 1. Thus, it becomes difficult to design the touch that is originally intended to be obtained. Furthermore, sometimes the sound of high frequency components that do not want to occur occurs. Further, the vibration easily leaks to the casing 6, and the other components such as the circuit or the wiring attached to the casing 6 vibrate. Therefore, contact of such parts and the like may also be a cause of harsh noise.

Furthermore, in the haptic feedback function, it is generally made to vibrate around 200 Hz where the sensitivity of the finger touch is high. However, when the size of the touch panel 2 becomes larger, the basic vibration mode of the touch panel 2 becomes lower than the 200 Hz. Therefore, in the case where it is assumed to vibrate at 200 Hz, the touch panel 2 starts to operate in the mode shown in FIGS. 14 to 16 and the like. In such a case, the vibration nodes 22, 23 are formed in the surface of the touch panel 2. Therefore, a portion where the vibration is extremely small occurs in the surface of the touch panel 2. That is, a portion where sufficient touch is not obtained is formed.

As described above, in the configuration of the comparative example, there are the following problems: (a) a sufficient amount of vibration cannot be obtained; (b) distortion occurs in the vibration, and the vibration cannot be caused by the input signal; (c) harmonic generation occurs. An abnormal sound caused by sound or contact caused by wave distortion; and (d) a portion where the amount of vibration is small in the surface of the touch panel. On the other hand, in the configurations of the first to fourth embodiments, the problems of (a) to (d) can be solved. Thus, excellent vibration characteristics can be obtained and an excellent tactile feedback function can be achieved.

[Examples]

Hereinafter, the measurement of the vibration acceleration of the present embodiment and the comparative example is performed. The results are explained. The configuration of the second embodiment shown in Figs. 5 and 6 is taken as an example. Specifically, as the vibration generating member 1 , a piezoelectric element composed of a bimorph is used. The piezoelectric element was supported as a cantilever, and a weight of 1 g was attached to the tip end. The resonance frequency of the vibration generating member 1 was set to 200 Hz.

The touch panel 2 is a touch panel having a thickness of 1.1 mm as a diagonal of a substrate of 10 Å. The second fixing material 3 is a double-sided tape having a thickness of 100 μm containing acrylic as a main component. The rigid body 4 is a rigid body made of aluminum and has a substantially U-shape in the XY plan view. Here, in order to make it lighter and rigid, the rigid body 4 is formed in a U-shaped cross section. The first fixing material 5 is formed into a sponge-like elastic double-sided tape using a foamed base material in the intermediate layer. The frame 6 is made of ABS resin.

The comparative example has a configuration as shown in Figs. 11 and 12 . Specifically, the touch panel 2 has a glass having a thickness of 1.1 mm as a touch panel having a diagonal size of 10 Å. The second fixing material 3 is a double-sided tape having a thickness of 100 μm containing acrylic acid as a main component. The frame 6 is made of ABS resin.

The measurement results of the vibration acceleration at the center of the touch panel 2 in the embodiment and the comparative example are shown in FIG. In Fig. 17, the measurement results when a sine wave signal of 30 Vp-p is input to the vibration generating member 1 in the range of 150 Hz to 300 Hz are shown.

In the configuration of the embodiment, a large vibration acceleration having a peak of acceleration in 200 Hz (resonance frequency of the vibration generating member 1) and 260 Hz (resonance frequency of basic vibration of the touch panel 2) can be obtained. Therefore, in the configuration of the embodiment, excellent vibration characteristics can be obtained as compared with the configuration of the comparative example.

Further, although not shown, when a 30 Vp-p sine wave signal of 200 Hz is input to the vibration generating member 1, vibration acceleration of 1 G or more can be obtained in all of the surfaces within 1 cm from the outer circumference of the touch panel 2. . Therefore, it can be confirmed that an excellent tactile sensation can be obtained in substantially all of the touch panel 2.

[variation]

Next, a modification of the input device will be described with reference to Figs. 18 and 19 . 18 and 19 are plan views showing the shape of the non-fixed portion A of the input device and the first fixing material 5. Fig. 18 is a view schematically showing a planar shape in Modification 1, and Fig. 19 is a view schematically showing a planar shape in Modification 2. In addition, since the overall configuration of the input device is the same as that of the first embodiment, the description thereof will be omitted as appropriate. For example, in Fig. 18 and Fig. 19, the casing 6 is omitted.

In the first and second modifications, the vibration generating member 1 is provided only at one end of the touch panel 2 as in the first to fourth embodiments. Vibration structure The piece 1 is placed on the non-fixed portion A. Then, in Modification 1 and Modification 2, the shape of the first fixing material 5 is different. Specifically, in the first modification, the first fixing material 5 is not provided at the two corner portions of the touch panel 2 . That is, the first fixing material 5 is not provided integrally with one end side of the outer peripheral edge 2P of the touch panel 2. In other words, the first fixing material 5 is provided only at the three end sides of the outer peripheral edge 2P. Thereby, the first fixing material 5 is followed by two of the four corners of the touch panel 2. The non-fixed portion A of the touch panel 2 is formed on one end of the touch panel 2 as a whole. In other words, one end side of the touch panel 2 is completely non-fixed.

On the other hand, in Modification 2, the first fixing material 5 is provided at the four corner portions of the touch panel 2. That is, the first fixing material 5 is provided on the entirety of the three end sides of the outer peripheral edge 2P of the touch panel 2 and at both ends of the one end side. Therefore, the first fixing material 5 is completely followed by the four corners of the touch panel 2. The non-fixed portion A of the touch panel 2 is only one of the one ends of the touch panel 2 . In other words, the four corners of the touch panel 2 are fixed to the fixed section 7. Thus, by fixing the four corners of the touch panel 2, higher strength can be obtained. The shapes of the variations 1 and 2 can be applied to the input device 100, the input device 200, or the input device 400 of the first, second, and fourth embodiments.

The present invention has been described above with respect to the above embodiments and examples, but the present invention is not limited to the configurations of the above-described embodiments and examples, but is of course included as long as it is a general knowledge in the technical field to which the invention pertains. Various changes, modifications, and combinations can be made within the scope of the invention of the claims of the present application.

The priority of the Japanese Patent Application No. 2015-162441, filed on A.

1‧‧‧Vibration generating components

2‧‧‧ touch panel

2P‧‧‧ outer periphery

2F‧‧‧ front surface

5‧‧‧First fixed material

5a‧‧‧Open Department

6‧‧‧ frame

6b‧‧‧ bottom

6c‧‧‧ side wall

7‧‧‧ fixed section

7a‧‧ Open Department

8‧‧‧Internal space

100‧‧‧ input device

Claims (10)

An input device comprising: a panel for receiving a touch input; the frame having a fixed section disposed on an outer circumference of the panel in a manner opposite to a rear surface of the panel, and configured a portion other than one of the outer peripheral edges of the panel; the first fixing material is provided to fix the panel to the fixing portion of the frame body, and is formed along the outer peripheral edge except for the aforementioned portion of the outer peripheral edge And the vibration generating member is disposed on a rear surface side of the panel on the outer peripheral edge of the outer peripheral edge to vibrate the panel. The input device according to claim 1, further comprising: a rigid body formed along the outer peripheral edge and disposed between the fixed segment and the panel; and a second fixing material formed along the outer peripheral edge and configured The rigid body and the front panel are fixed between the rigid body and the front panel; the first fixing material is elastic and disposed between the rigid body and the fixing section for fixing the rigid body and the frame. The input device according to claim 2, wherein the rigid body and the second fixing material are discontinuous in the part of the outer circumference; In the aforementioned part of the outer peripheral edge, the vibration generating member is attached to the rear surface of the panel. The input device according to claim 2, wherein the rigid body and the second fixing material are continuously provided over the entire circumference of the outer circumference; and the angle system is provided in the rigid system, and the angle portion is attached to the outer circumference The part extends toward the bottom side of the frame body, and the vibration generating member is fixed to the angle portion. The input device according to claim 1, wherein the first fixing material is attached to the fixing portion and the front panel; and the vibration generating member is attached to a rear surface of the panel. The input device according to any one of claims 1 to 5, wherein the front panel has a rectangular shape in plan view, and the fixed section is provided on a side other than one of four sides constituting a peripheral edge of the panel. The input device according to any one of claims 1 to 5, wherein the panel has a rectangular shape in plan view, and the fixing portion and the first fixing material are provided at four corners of the panel. An input device comprising: a panel for receiving a touch input; and a frame having a fixed section disposed on an outer circumference of the panel in a manner opposite to a rear surface of the panel; a rigid body, a configuration Formed between the foregoing panel and the aforementioned fixing section and along the outer periphery of the aforementioned panel; The first fixing material is disposed between the rigid body and the fixing portion for fixing the rigid body and the frame; and the second fixing material is disposed between the rear surface of the panel and the rigid body at the outer peripheral edge thereof. The fixed body and the front panel are fixed; and the vibration generating member is attached to the rear surface of the front panel. The input device according to claim 8, wherein the fixed segment is continuously provided over the entire circumference of the outer periphery. The input device according to any one of claims 1 to 5, 8 or 9, wherein the vibration generating member is provided only at one end of the front panel.