JPWO2015068615A1 - Touch input device - Google Patents

Abstract

The touch input device (10) includes a push sensor unit (20), a position sensor unit (30), a display panel unit (40), and an arithmetic circuit module (60). The arithmetic circuit module (60) includes an indentation processing unit (61), a position processing unit (62), an operation calculation unit (63), and a display processing unit (64). The push sensor unit (20) and the push processing unit (61) detect a push operation on the operation surface. The position sensor unit (30) and the position processing unit (62) detect a plurality of positions where the touch operation is performed on the operation surface. The motion calculation unit (63) receives at least one of a rotation operation and a pinch operation based on the change in position and the push-in operation.

Description

  The present invention relates to a touch input device that accepts a touch operation.

  Multi-functional portable terminals that are currently widely used have a function as a touch input device. The user of the multi-function mobile terminal rotates or enlarges or reduces the image by moving a finger on the screen. In many conventional multi-function mobile terminals, image rotation and enlargement / reduction are performed simultaneously.

  An example of the touch input device is an image editing device described in Patent Document 1. In this image editing apparatus, a rotation function for rotating an image and an enlargement / reduction function for enlarging / reducing an image can be switched according to the operation mode of the touch operation.

JP2012-70310

  When image rotation and enlargement / reduction are performed at the same time, image rotation and enlargement / reduction can be performed by a single operation. However, in this case, when the image is to be rotated, the position of the finger is shifted, so that the image may be unintentionally enlarged or reduced together with the rotation of the image. On the other hand, when only image rotation or enlargement / reduction is performed, image rotation or enlargement / reduction can be performed without an erroneous operation, but image rotation and enlargement / reduction cannot be performed simultaneously. Therefore, in order to perform image rotation and enlargement / reduction as intended, a mode in which only image rotation is performed, a mode in which only enlargement / reduction is performed, and a mode in which rotation and enlargement / reduction are performed simultaneously are switched with good operability. It is necessary.

  In the image editing apparatus described in Patent Document 1, it is possible to switch between a mode in which only image rotation is performed and a mode in which only enlargement / reduction is performed with good operability. However, in this image editing apparatus, it is considered that it is not possible to switch from a mode in which only image rotation is performed or a mode in which only enlargement / reduction is performed to a mode in which rotation and enlargement / reduction are simultaneously performed with good operability.

  An object of the present invention is to provide a touch-type input device capable of switching between a mode in which only image rotation is performed, a mode in which only enlargement / reduction is performed, and a mode in which rotation and enlargement / reduction are performed simultaneously with good operability. It is in.

(1) The touch-type input device of the present invention includes an operation surface, a push detection unit, a position detection unit, and an operation reception unit. The indentation detection unit detects an indentation operation on the operation surface. The position detection unit detects a plurality of positions where the touch operation is performed on the operation surface. The operation reception unit receives at least one of a rotation operation and a pinch operation based on the change in position and the push-in operation.

  In this configuration, the mode in which only the image is rotated, the mode in which only the enlargement / reduction is performed, and the mode in which the rotation and enlargement / reduction are simultaneously performed can be switched based on the change in position and the amount of pressing. Further, when switching between modes, it is not necessary to perform a switching operation for switching between modes before performing a rotate operation or a pinch operation. Also, the operations assigned to each mode are not complicated. For this reason, each mode can be switched with good operability.

(2) The touch input device of the present invention is preferably configured as follows. The operation accepting unit accepts either a rotate operation or a pinch operation when a push-in operation is detected and the position changes. The operation accepting unit accepts both the rotate operation and the pinch operation when the push-in operation is not detected and the position changes.

  In this configuration, when a pressing operation is detected, a mode in which only image rotation is performed or a mode in which only enlargement / reduction is performed is selected. When no pushing operation is detected, a mode in which rotation and enlargement / reduction are simultaneously performed is selected. Thereby, based on pushing operation, a mode can be switched appropriately.

(3) The touch input device of the present invention is preferably configured as follows. The operation receiving unit calculates a change amount in the distance direction and a change amount in the rotation direction at each position when the push-in operation and the position are detected. The operation accepting unit accepts a rotation operation when the change amount in the rotation direction is larger than the change amount in the distance direction, and accepts a pinch operation when the change amount in the distance direction is larger than the change amount in the rotation direction.

  In this configuration, the mode in which only the rotation of the image is performed and the mode in which only the enlargement / reduction is performed can be appropriately switched based on the amount of change in the distance direction and the amount of change in the rotation direction.

(4) It is preferable that the indentation detection unit detects an indentation amount when the operation surface is indented.

  In this configuration, the pushing operation can be detected by detecting the pushing amount.

(5) The touch input device of the present invention preferably includes an image display unit that displays an image on a screen, and the screen is preferably an operation surface.

  In this configuration, since the touch input device can be operated on the screen, the operability can be improved.

(6) The indentation detection unit preferably has a piezoelectric film formed from a chiral polymer.

(7) The chiral polymer is preferably polylactic acid.

(8) The polylactic acid is preferably L-type polylactic acid.

  For example, when PVDF (polyvinylidene fluoride) is used for the piezoelectric film, the body temperature of the user's finger is transmitted to the piezoelectric film, which may affect detection by the piezoelectric film. However, in this configuration, since polylactic acid does not have pyroelectricity, the amount of pressing by the piezoelectric film can be accurately detected.

  According to the present invention, a mode in which only image rotation is performed, a mode in which only enlargement / reduction is performed, and a mode in which rotation and enlargement / reduction are performed simultaneously can be switched with good operability.

1 is an external perspective view of a touch input device according to an embodiment. It is AA sectional drawing of the touch-type input device which concerns on this embodiment. It is a figure which shows the example of operation of the touch-type input device which concerns on this embodiment. It is a figure which shows the example of operation of the touch-type input device which concerns on this embodiment. It is a block diagram which shows the structure of the touch-type input device which concerns on this embodiment. It is a flowchart which shows the process which the operation | movement calculation part 63 performs. It is a figure which shows the distance between each touch position.

  A touch input device 10 according to an embodiment of the present invention will be described. The touch input device 10 is, for example, a multi-function portable terminal, a music player, a digital camera, or the like. FIG. 1 is an external perspective view of the touch input device 10. The touch input device 10 includes a touch panel 11 and a substantially rectangular parallelepiped casing 50. The touch panel 11 has a substantially rectangular screen (operation surface) S1. The screen S <b> 1 forms a part of the main surface (front surface) of the touch input device 10. The screen S1 is a display unit that displays an image and an input unit that receives a user operation. The touch panel 11 receives a user operation by detecting a touch position and a pressing amount on the screen S1.

  Here, an operation of touching the operation surface with a finger, a dedicated pen, etc., and an operation of moving the finger, the dedicated pen, etc. while making contact with the operation surface are referred to as a touch operation, and the position touched by the touch operation is referred to as a touch position. Called. An amount indicating how much the operation surface is pushed in with a finger, a dedicated pen or the like is referred to as a push-in amount.

  FIG. 2 is a cross-sectional view of the touch input device 10 taken along the line AA. Hereinafter, the width direction (lateral direction) of the touch-type input device 10 will be described as the X direction, the length direction (vertical direction) as the Y direction, and the thickness direction as the Z direction. In the description of the present embodiment, the case where the length of the touch input device 10 in the X direction is shorter than the length of the touch input device 10 in the Y direction is shown.

  The touch input device 10 includes a push sensor unit 20, a position sensor unit 30, a display panel unit 40, and an arithmetic circuit module 60. The indentation sensor unit 20, the position sensor unit 30, and the display panel unit 40 have a flat plate shape, and are arranged in the housing 50 so that their main surfaces are parallel to the screen S1. The arithmetic circuit module 60 has a substantially flat plate shape and is disposed in the housing 50. A protective cover 51 is provided on the main surface (front surface) of the touch input device 10. The screen S1 corresponds to one main surface of the protective cover 51.

  The display panel unit 40 includes a flat liquid crystal panel 401, a front polarizing plate 402, a back polarizing plate 403, and a backlight 404. In the liquid crystal panel 401, the driving electrode is applied from the outside, so that the alignment state of the liquid crystal changes so as to form a predetermined image pattern. The front polarizing plate 402 and the back polarizing plate 403 are disposed so as to sandwich the liquid crystal panel 401. The backlight 404 is disposed on the opposite side of the liquid crystal panel 401 with the back polarizing plate 403 interposed therebetween.

  Between the surface polarizing plate 402 and the protective cover 51, a push sensor unit 20 and a position sensor unit 30 are provided. The position sensor unit 30 is located on the protective cover 51 side, and the push sensor unit 20 is located on the surface polarizing plate 402 side. The indentation sensor unit 20, the position sensor unit 30, and the display panel unit 40 are bonded by an adhesive 501.

  The position sensor unit 30 includes a flat insulating substrate 301. The insulating substrate 301 is made of a material that has translucency and does not have birefringence. A plurality of electrodes 302 are formed on one plane of the insulating substrate 301. A plurality of electrodes 303 are formed on the other plane. The plurality of electrodes 302 are long and long in the Y direction, and are arranged at intervals along the X direction. The plurality of electrodes 303 are long and long in the X direction, and are arranged at intervals along the Y direction. That is, the plurality of electrodes 302 and 303 are disposed so as to intersect at approximately 90 ° when viewed from the Z direction. The plurality of electrodes 302 and 303 are made of a light-transmitting material.

  Each of the electrodes 302 and 303 of the position sensor unit 30 forms a pair, and detects a change in capacitance when a user's finger approaches the screen S1. The pair of electrodes 302 and 303 that has detected a change in capacitance outputs one of the electrodes 302 and 303 as a reference potential and outputs a capacitance detection signal corresponding to the change in capacitance. The output electrostatic capacitance detection signal is input to the arithmetic circuit module 60 via a wiring (not shown). Thus, the touch position can be detected from the combination of the electrodes 302 and 303 that have detected the capacitance change.

  The indentation sensor unit 20 includes a flat film-like piezoelectric film 201. Electrodes 202 and 203 are formed on both flat plate surfaces of the piezoelectric film 201. The electrodes 202 and 203 are formed on substantially the entire flat plate surface of the piezoelectric film 201.

  The piezoelectric film 201 is a film formed from a chiral polymer. In this embodiment, polylactic acid (PLA), particularly L-type polylactic acid (PLLA) is used as the chiral polymer. PLLA is uniaxially stretched. Since the chiral polymer has higher transparency than PVDF, the image displayed on the display panel unit 40 is easily visible by forming the piezoelectric film 201 from the chiral polymer.

  PLLA made of a chiral polymer has a main chain with a helical structure. PLLA has piezoelectricity when uniaxially stretched and molecules are oriented. The uniaxially stretched PLLA generates electric charges when the flat plate surface of the piezoelectric film 201 is pressed. At this time, the amount of electric charge generated depends on the amount of displacement when the flat plate surface is displaced in the direction orthogonal to the flat plate surface by pressing. That is, the amount of generated charge depends on the amount of pushing.

  Since PLLA generates piezoelectricity by molecular orientation treatment such as stretching, it is not necessary to perform poling treatment unlike other polymers such as PVDF and piezoelectric ceramics. That is, the piezoelectricity of PLLA that does not belong to ferroelectrics is not expressed by the polarization of ions like ferroelectrics such as PVDF and PZT, but is derived from a helical structure that is a characteristic structure of molecules. is there. For this reason, the pyroelectricity generated in other ferroelectric piezoelectric materials does not occur in PLLA. Furthermore, with PVDF or the like, fluctuations in the piezoelectric constant are observed over time, and in some cases, the piezoelectric constant may be significantly reduced, but the piezoelectric constant of PLLA is extremely stable over time. Therefore, it is possible to detect displacement due to pressing with high sensitivity without being affected by the surrounding environment.

  As the electrodes 202 and 203, it is preferable to use any of inorganic electrodes such as ITO, ZnO, silver nanowires, carbon nanotubes, and graphene, and organic electrodes mainly composed of polythiophene, polyaniline, and the like. By using these materials, a highly translucent conductor pattern can be formed. By providing such electrodes 202 and 203, the electric charge generated by the piezoelectric film 201 can be acquired as a potential difference, and a push amount detection signal having a voltage value corresponding to the push amount can be output to the outside. The push-in amount detection signal is output to the arithmetic circuit module 60 via a wiring (not shown).

  The arithmetic circuit module 60 is disposed on the back side of the display panel unit 40. Specifically, a mounting board (not shown) is disposed in the space on the back side of the display panel unit 40 in the housing 50, and the arithmetic circuit module 60 is mounted on the mounting board. .

  3 and 4 are diagrams illustrating an example of the operation of the touch input device 10. FIG. 3A is a diagram showing a rotation operation. In the rotation operation, first, the screen S1 is touched with the thumb and forefinger. Next, the index finger is moved in the circumferential (rotation) direction on the screen S1 with the thumb as an axis. That is, in the rotate operation, the second touch position moves in the circumferential direction around the first touch position. The image can be rotated by a rotation operation.

  FIG. 3B is a diagram showing a pinch operation. In the pinch operation, first, the screen S1 is touched with the thumb and forefinger. Next, these fingers are moved on the screen S1 so as to change the distance between the thumb and the index finger. That is, in the pinch operation, the interval between the first touch position and the second touch position changes. An image can be enlarged or reduced by a pinch operation.

  FIG. 4A shows a composite operation. In the composite operation, the rotation operation and the pinch operation are performed simultaneously. Specifically, first, the screen S1 is touched with the thumb and forefinger. Next, with the thumb as an axis, the index finger is moved in the circumferential direction, and at the same time, the index finger is moved in the radius (distance) direction. That is, in the composite operation, the second touch position moves in the circumferential direction and the radial direction around the first touch position. In a predetermined mode, image rotation and enlargement / reduction can be performed simultaneously by a composite operation. Details will be described later.

  FIG. 4B is a diagram illustrating the pushing operation. Press the screen with at least one finger touching the screen. That is, at least one of the touch positions is pushed in. The display change mode can be switched by a push operation. Details will be described later.

  FIG. 5 is a block diagram showing a configuration of the touch input device 10. The touch input device 10 includes the push sensor unit 20, the position sensor unit 30, the display panel unit 40, and the arithmetic circuit module 60 as described above.

  As described above, the push sensor unit 20 outputs a push amount detection signal. The position sensor unit 30 outputs a capacitance detection signal as described above. As described above, the display panel unit 40 displays an image on the screen S1 (see FIG. 1). The arithmetic circuit module 60 controls the push sensor unit 20, the position sensor unit 30, and the display panel unit 40, and changes the display of an image based on a user operation.

  The arithmetic circuit module 60 includes a push processing unit 61, a position processing unit 62, an operation calculation unit 63, and a display processing unit 64. Note that physically, the arithmetic circuit module 60 includes a CPU, a RAM, a ROM, a bus connecting them, and the like.

  The push-in processing unit 61 controls the push-in sensor unit 20 and detects the presence / absence of a push-in operation. Specifically, the following processing is performed. A push amount detection signal is acquired from the push sensor unit 20. When the push amount detection signal is equal to or greater than the threshold value, it is determined that the push operation has been performed. When the pressing amount detection signal is less than the threshold value, it is determined that the pressing operation has not been performed. In response to a request from the motion calculation unit 63, the presence / absence of a push operation is transmitted to the motion calculation unit 63. The indentation sensor unit 20 and the indentation processing unit 61 constitute an indentation detection unit of the present invention.

  The position processing unit 62 controls the position sensor unit 30 to detect a touch position. Specifically, the following processing is performed. A capacitance detection signal is acquired from the position sensor unit 30. The touch position is calculated from the capacitance detection signal. The touch position is transmitted to the motion calculation unit 63 in response to a request from the motion calculation unit 63. The position sensor unit 30 and the position processing unit 62 constitute a position detection unit of the present invention.

  The motion calculation unit 63 determines that at least one of the rotation operation and the pinch operation has been performed based on the push operation and the change in the touch position. Then, the motion calculation unit 63 instructs the display processing unit 64 to change the image display based on the determination. That is, the motion calculation unit 63 accepts at least one of a rotate operation and a pinch operation based on a push-in operation and a change in touch position. The motion calculation unit 63 corresponds to the operation reception unit of the present invention. Specifically, the motion calculation unit 63 performs, for example, the process illustrated in FIG. FIG. 6 is a flowchart illustrating processing performed by the motion calculation unit 63.

  First, the touch position is acquired from the position processing unit 62 (S101). When there are two touch positions (S102: Yes), the touch positions are stored (S103). When the touch position is not two places (S102: No), the touch position is acquired again from the position sensor unit 30 after the unit time (S101).

  When two touch positions before the unit time are stored (S104: Yes), the process S105 is performed. When two touch positions before the unit time are not stored (S104: No), the touch position is acquired again from the position sensor unit 30 after the unit time (S101). In processes S101 to S104, two touch positions A0 and B0 and a current two touch positions A1 and B1 before the unit time are acquired. Here, it is assumed that the touch position A0 moves to the touch position A1 after a unit time, and the touch position B0 moves to the touch position B1 after the unit time.

  In process S <b> 105, the presence or absence of a push operation is acquired from the push processing unit 61. When the pushing operation is detected (S106: Yes), the process S107 is performed, and when the pushing operation is not detected (S106: No), the process S113 is performed. In processes S107 to S112, as will be described later, either a rotate operation or a pinch operation is accepted. In processes S113 and S114, both a rotate operation and a pinch operation are accepted as will be described later.

Here, the movement amount η _r of the rotation operation and the movement amount η _p of the pinch operation will be described. The movement amount η _r is related to the movement distance when the other touch position moves in the circumferential direction around the one touch position. Similarly, the movement amount η _p is related to the amount of change in the distance between touch positions. When the movement amount η _p is larger than the movement amount η _r , it is determined that only the pinch operation has been performed. When the movement amount η _r is larger than η _p , it is determined that only the rotation operation has been performed. When the movement amount η _p and the movement amount η _r are equal, it is determined that neither the rotation operation nor the pinch operation has been performed. The movement amounts η _r and η _p are arbitrarily set according to the operation required for the touch input device. Further, in accordance with the set amount of movement eta _r, angle θ and the reference point when rotating the image it is set. Depending on the setting of the amount of movement eta _p, magnification α and the reference point of time of scaled images is set. The movement amount η _r corresponds to the “change amount in the rotation direction” of the present invention, and the movement amount η _p corresponds to the “change amount in the distance direction” of the present invention.

For example, the movement amounts η _r and η _p may be set as follows. A difference between the distance r _A0B0 and the distance r _A1B1 is defined as a movement amount η _p . Here, the distance r _ij represents the distance between the touch position i and the touch position j, as shown in FIG. FIG. 7 is a diagram illustrating the distance between the touch positions. _Further , the ratio between the distance r _A0B0 and the distance r _A1B1 is set as an enlargement / reduction ratio α. The touch position A0 or B0 is set as a reference point.

An angle formed by a line segment connecting the touch position A0 and the touch position B0 and a line segment connecting the touch position A1 and the touch position B1 is φ, and the movement amount η _r = r _A0B0 φ. Further, the angle φ is an angle θ when the image is rotated. The touch position A0 or B0 is set as a reference point.

When the touch position B0 is selected as the reference point and r _B1B0 ≠ 0, the image is rotated or enlarged / reduced, and then the image is translated by a distance r _B1B0 in the direction from the touch position B0 toward the touch position B1. . The same applies to the case where the touch position A0 is selected as the reference point and r _A1A0 ≠ 0. As a result, the image can follow the movement of the touch position.

In process S107, movement amounts η _r and η _p are calculated based on the touch positions A0, B0, A1, and B1. When the movement amount η _p is larger than the movement amount η _r (S107: Yes), it is determined that only the pinch operation has been performed as described above. In this case, the scaling factor α and the reference point are calculated (S109). Then, the motion calculation unit 63 instructs the display processing unit 64 to enlarge or reduce the image, and sends the magnification α and the reference point to the display processing unit 64 (S110). That is, when a pushing operation is detected and the movement amount η _p is larger than the movement amount η _r , only a pinch operation is accepted.

When the movement amount η _r is larger than the movement amount η _p (S107: No, S108: Yes), as described above, it is determined that only the rotation operation has been performed. In this case, the angle θ and the reference point for rotating the image are calculated (S111). Then, the motion calculation unit 63 instructs the display processing unit 64 to rotate the image, and sends the angle θ and the reference point to the display processing unit 64 (S112). That is, when a pushing operation is detected and the movement amount η _r is larger than the movement amount η _p , only a rotation operation is accepted.

When the movement amount η _p and the movement amount η _r are equal (S108: No), the motion calculation unit 63 determines that neither the pinch operation nor the rotation operation has been performed, and ends the process.

  In the process 113, the magnification α, the angle θ, and the reference point are calculated. The motion calculation unit 63 instructs the display processing unit 64 to enlarge and reduce and rotate the image, and sends the magnification α, the angle θ, and the reference point to the display processing unit 64 (S114). That is, when the pushing operation is not detected, both the rotate operation and the pinch operation are accepted. When the magnification α = 1, the motion calculation unit 63 may not instruct the display processing unit 64 to enlarge or reduce the image. When the angle θ = 0, the motion calculation unit 63 may not instruct the display processing unit 64 to rotate the image.

  When the above process is completed, the motion calculation unit 63 starts the process S101 again after unit time except when an interrupt is received. Thereby, the display of an image can be continuously changed according to a user's operation.

  The display processing unit 64 controls the display panel unit 40 and displays an image on the display panel unit 40, that is, the screen S1. Further, the display processing unit 64 changes the display of the image based on an instruction from the motion calculation unit 63. When the display processing unit 64 is instructed to rotate the image, the display processing unit 64 displays the image rotated by the angle θ about the reference point on the display panel unit 40. When the display processing unit 64 is instructed to enlarge or reduce the image, the display processing unit 64 displays an image enlarged / reduced by the magnification α around the reference point on the display panel unit 40. The display panel unit 40 and the display processing unit 64 correspond to the image display unit of the present invention.

  The operation of the touch input device 10 will be exemplified. In the first operation example, first, the user performs a rotation operation with the two fingers while pressing the screen S1 (see FIG. 1) with at least one of the two fingers. At this time, the distance between the two fingers is slightly changed due to, for example, the axis finger deviating from the center of the arc. In this case, only the process of rotating the image is performed, and the rotated image is displayed on the screen S1. In addition, it is preferable to press screen S1 with the finger | toe used as an axis | shaft. This facilitates moving the finger in the circumferential direction.

  In the second operation example, first, the user performs a pinch operation with the two fingers while pressing the screen S1 with at least one of the two fingers. At this time, the other finger moves slightly in the circumferential direction with one finger as an axis. In this case, only the process of enlarging or reducing the image is performed, and the enlarged or reduced image is displayed on the screen S1.

  In the third operation example, first, the user performs a composite operation without pressing the screen S1. In this case, both rotation and enlargement / reduction of the image are performed, and the rotated and enlarged / reduced image is displayed on the screen S1. Note that when the user performs a composite operation while pressing the screen S1, only one of the image rotation and enlargement / reduction processing is performed according to the movement amount as described above.

  In the present embodiment, it is possible to switch between a mode in which only image rotation is performed, a mode in which only image enlargement / reduction is performed, and a mode in which rotation and enlargement / reduction are performed simultaneously by pressing operation and touch operation.

  Each mode is assigned a combination of a push operation and a touch operation. Each mode is switched by performing an operation assigned to each mode. For this reason, when switching the mode, it is not necessary to perform a switching operation for switching the mode before performing the rotate operation or the pinch operation. Further, since it is not necessary to assign a touch operation different from the rotate operation and the pinch operation to each mode, the operation assigned to each mode does not become complicated.

  For this reason, in this embodiment, the mode in which only rotation is performed, the mode in which only enlargement / reduction is performed, and the mode in which rotation and enlargement / reduction are performed simultaneously can be switched with good operability. As a result, it is possible to improve operability when changing the display of an image.

  In the present embodiment, the touch input device includes a touch panel as an input / output unit, but the present invention is not limited to this. For example, the touch-type input device of the present invention may have a configuration in which an input unit and an output unit are separate, such as a display and a touchpad.

  In this embodiment, when a push operation is performed, a mode in which only one of image rotation and enlargement / reduction is performed is selected, but the present invention is not limited to this. When the push operation is performed, a mode in which rotation and enlargement / reduction are simultaneously performed may be selected. When the push operation is not performed, a mode in which only one of rotation and enlargement / reduction is performed may be selected.

S1 screen (operation surface)
DESCRIPTION OF SYMBOLS 10 ... Touch-type input device 11 ... Touch panel 20 ... Push sensor part (push detection part)
30 ... Position sensor part (position detection part)
40. Display panel section (image display section)
50 ... Case 51 ... Protective cover 60 ... Operation circuit module 61 ... Pushing processing unit (pushing detection unit)
62 ... Position processing unit (position detecting unit)
63 ... Motion calculation unit (operation reception unit)
64... Display processing unit (image display unit)
201 ... Piezoelectric films 202, 203, 301, 303 ... Electrode 301 ... Insulating substrate 401 ... Liquid crystal panel 402 ... Front polarizing plate 403 ... Back polarizing plate 404 ... Backlight 501 ... Adhesive

(1) A first touch-type input device of the present invention includes an operation surface, a push detection unit, a position detection unit, and an operation reception unit. The indentation detection unit detects an indentation operation on the operation surface. The position detection unit detects a plurality of positions where the touch operation is performed on the operation surface. The operation reception unit receives at least one of a rotation operation and a pinch operation based on the change in position and the push-in operation. The operation accepting unit accepts either a rotate operation or a pinch operation when a push-in operation is detected and the position changes. The operation accepting unit accepts both the rotate operation and the pinch operation when the push-in operation is not detected and the position changes.

In this configuration, the mode in which only the image is rotated, the mode in which only the enlargement / reduction is performed, and the mode in which the rotation and enlargement / reduction are simultaneously performed can be switched based on the change in position and the amount of pressing. Further, when switching between modes, it is not necessary to perform a switching operation for switching between modes before performing a rotate operation or a pinch operation. Also, the operations assigned to each mode are not complicated. For this reason, each mode can be switched with good operability.
In addition, when a pressing operation is detected, a mode in which only image rotation is performed or a mode in which only enlargement / reduction is performed is selected. When no pushing operation is detected, a mode in which rotation and enlargement / reduction are simultaneously performed is selected. Thereby, based on pushing operation, a mode can be switched appropriately.

(2) A second touch-type input device of the present invention includes an operation surface, a push detection unit, a position detection unit, and an operation reception unit. The indentation detection unit detects an indentation operation on the operation surface. The position detection unit detects a plurality of positions where the touch operation is performed on the operation surface. The operation reception unit receives at least one of a rotation operation and a pinch operation based on the change in position and the push-in operation. The operation accepting unit accepts both a rotation operation and a pinch operation when a push-in operation is detected and the position changes. When a push-in operation is not detected and the position changes, either a rotate operation or a pinch operation is accepted.

(3) The first touch input device of the present invention is preferably configured as follows. The operation receiving unit calculates a change amount in the distance direction and a change amount in the rotation direction at each position when the push-in operation and the position are detected. The operation accepting unit accepts a rotation operation when the change amount in the rotation direction is larger than the change amount in the distance direction, and accepts a pinch operation when the change amount in the distance direction is larger than the change amount in the rotation direction.

(5) It is preferable that the 1st or 2nd touch-type input device of this invention is provided with the image display part which displays an image on a screen, and a screen is an operation surface.

Claims (8)

Operation surface,
An indentation detecting unit for detecting an indentation operation on the operation surface;
A position detection unit that detects a plurality of positions where a touch operation is performed on the operation surface;
An operation receiving unit that receives at least one of a rotation operation and a pinch operation based on the change in position and the push-in operation.   The operation accepting unit accepts one of the rotate operation and the pinch operation when the push operation is detected and the position is changed, the push operation is not detected, and the position is changed. The touch-type input device according to claim 1, wherein both the rotate operation and the pinch operation are accepted when the operation is performed.   When the push operation and the position are detected, the operation receiving unit calculates a change amount in the distance direction and a change amount in the rotation direction of each position, and the change amount in the rotation direction becomes the change amount in the distance direction. The touch-type input device according to claim 1, wherein the rotation input is accepted when the comparison is larger, and the pinch operation is accepted when the amount of change in the distance direction is larger than the amount of change in the rotation direction.   The touch-type input device according to claim 1, wherein the push detection unit detects a push amount when the operation surface is pushed. It has an image display that displays images on the screen,
The touch-type input device according to claim 1, wherein the screen is the operation surface.   The touch input device according to claim 1, wherein the indentation detection unit includes a piezoelectric film formed of a chiral polymer.   The touch input device according to claim 6, wherein the chiral polymer is polylactic acid.   The touch input device according to claim 7, wherein the polylactic acid is L-type polylactic acid.

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