JP2020027349A - Display control device, display control method, program and storage medium - Google Patents

Abstract

To provide a display control device capable of suppressing induction of an erroneous operation and enabling enlargement/reduction of screen display and movement of a display image by a series of operations.SOLUTION: A front touch panel 106 and a rear touch panel 107 are arranged on a grip part 201 of a digital camera. When a slide of a touch point with respect to the rear touch panel 107 is detected, a system control unit 104 moves a cursor 205 displayed on a display screen 202 of a display device 105 according to a slide direction and a slide amount of the touch point. When a slide of the touch point with respect to the front touch panel 106 and a slide of the touch point with respect to the rear touch panel 107 are detected simultaneously, enlargement/reduction of an image displayed on the display screen 202 is continuously performed according to the slide direction and the slide amount of the touch point with respect to each of the front touch panel 106 and the rear touch panel 107.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a display control device, a control method of a display device, a program, and a storage medium, and more particularly, to a display control executed according to a continuous enlargement operation and reduction operation of a screen display.

  2. Description of the Related Art Conventionally, enlargement / reduction display of a captured image or a live view image on a liquid crystal display device or an electronic viewfinder (EVF) included in an imaging device such as a digital camera is performed stepwise by operating an enlargement / reduction button. I have. Further, the change of the enlargement position or the reduction position and the movement of the display image are performed stepwise, for example, by pressing a cross key.

  On the other hand, by mounting a touch panel on the liquid crystal display device, it is possible to continuously enlarge and reduce the screen display by operating two fingers on the touch panel to change the distance between the touch points. It is possible.

  Here, there is a case where the user (photographer) wants to perform an operation of continuously enlarging / reducing the screen display while holding the grip portion of the imaging device with one hand. However, since the liquid crystal display device is usually provided on the back side of the imaging device, the user must once release his / her hand from the grip unit before performing a touch operation. In addition, it is necessary to use an operation member such as an enlargement / reduction button or a cross key for a reduction / enlargement operation of a screen when a live image or a reproduced image (reproduced image) is visually recognized using a peeping type EVF. In that case, it is necessary to search for the operation member by groping and perform the operation.

  To solve such a problem, Patent Document 1 discloses a method in which a touch sensor is arranged on the front and back of a display device, and a reference point for screen processing is set by touching a touch panel on the back. Has proposed a technology for performing a screen display process based on an input to a touch sensor.

JP-A-2015-106170

  However, in an imaging device such as a digital camera, it is necessary to perform various operations such as a menu display for changing imaging conditions and a selection operation on the displayed menu, other than the enlargement / reduction display, during the imaging operation. Become. Therefore, when the technique disclosed in Patent Document 1 is applied to an imaging device, there is a concern that an erroneous operation may be induced by an operation of merely touching a finger on a touch panel on the rear surface. In addition, the technique disclosed in Patent Document 1 cannot be directly applied to enlarged / reduced display, movement of a display image, and the like, and another method is required.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a display control device capable of suppressing induction of an erroneous operation and performing enlargement / reduction of screen display and movement of a display image by a series of operations.

  The display control device according to the present invention includes a grip portion, a first touch sensor provided on the grip portion, and a second touch arranged on a different plane from the first touch sensor in the grip portion. A sensor, detecting means for detecting a touch point on each of the first touch sensor and the second touch sensor, and a slide direction of the touch point when the slide of the touch point on the second touch sensor is detected. And moving the item displayed on the display screen of the display device according to the slide amount, and the slide of the touch point with respect to the first touch sensor and the slide of the touch point with respect to the second touch sensor are simultaneously detected. In the case, the sliding direction and the sliding amount of the touch point with respect to each of the first touch sensor and the second touch sensor are determined. Flip it, characterized in that it comprises a control means for performing scaling of the image displayed on the display screen continuously.

  ADVANTAGE OF THE INVENTION According to this invention, the induction of erroneous operation can be suppressed, and enlargement / reduction of a screen display and movement of a display image can be performed by a series of operations.

FIG. 1 is a diagram illustrating a schematic configuration of a digital camera according to an embodiment of the present invention. FIG. 3 is a diagram illustrating an example of a holding state of a digital camera and a display image. FIG. 3 is a diagram illustrating an operation mode of a touch panel and a display mode of a cursor. It is a figure showing an example of a mode of operation of a touch panel, and a display image. FIG. 9 is a diagram illustrating another example of an operation mode of the touch panel and a display image. FIG. 4 is a schematic diagram illustrating an operation mode of a touch panel and a method of determining an operation. It is a figure explaining the composition and operation mode of the camcorder concerning the embodiment of the present invention. FIG. 2 is a diagram illustrating a configuration and an operation mode of the head mounted display according to the embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Here, the display control device according to the present invention is described as applied to a digital camera which is an example of an imaging device.

  FIG. 1 is a diagram illustrating a schematic configuration of a digital camera according to an embodiment of the present invention. The digital camera includes a camera body 101 and an imaging lens 102 mounted on the camera body 101. The camera body 101 includes an image sensor 103, a system control unit 104, a display device 105, a front touch panel 106 (first touch sensor), a rear touch panel 107 (second touch sensor), and a storage device 108. The display device 105 includes a liquid crystal display device 105a and an electronic finder 105b (hereinafter, referred to as “EVF 105b”). Note that a thin display such as an organic EL display device may be provided instead of the liquid crystal display device 105a.

  The imaging lens 102 has an imaging optical system including a plurality of lenses or the like that transmits incident light including reflected light from a subject and forms an image on the imaging element 103. The light beam transmitted through the imaging optical system of the imaging lens 102 passes through a shutter unit (not shown) provided in the camera body 101, is guided to the imaging device 103, and forms an image on the imaging surface of the imaging device 103. The image sensor 103 is an image sensor such as a CMOS sensor including photoelectric conversion elements arranged in a matrix. An optical image that has passed through the image pickup lens 102 and is formed on an image pickup surface is transmitted to the image sensor 103 for a predetermined time. It is exposed and converted into an electric signal.

  When an imaging instruction signal is output to the system control unit 104 by a release operation of a user (photographer), the imaging element 103 performs a reset operation of the photoelectric conversion element under the control of the system control unit 104, and starts accumulating charges. The release operation can be performed by pressing a release button (not shown) provided on the camera body 101 or pressing the front touch panel 106. After the exposure for a predetermined time is completed, the light path is blocked by the shutter unit, and the accumulated charges (electric signals) are read from the image sensor 103.

  The system control unit 104 performs image processing, correction processing, conversion processing to a stored image, and the like on the imaging information including the electric signal read from the imaging element 103, and performs processing such as an internal memory (not shown) provided in the system control unit 104. ) Or the storage device 108. The storage device 108 includes an EEPROM storing programs executable by the system control unit 104 and various setting conditions of the digital camera, and a RAM having a work area where the system control unit 104 develops programs and a temporary data storage area. Including. In addition, the storage device 108 includes a storage medium such as a hard disk drive or a semiconductor memory card such as an SD card that stores captured image (video) data and application programs that can be executed by the system control unit 104.

  The display device 105 displays various setting information and a setting menu of the digital camera, shooting conditions, a live view image, a shot image stored in the storage device 108, and the like. The liquid crystal display device 105a and the EVF 105b as the display device 105 included in the digital camera may each be a known device. The user can adjust the composition and the exposure while checking the subject image displayed on the display device 105 during shooting.

  Each of the front touch panel 106 and the rear touch panel 107 is an operation member for transmitting a predetermined instruction (command) to the system control unit 104 according to a touch operation. The user performs an operation of touching a finger on the front touch panel 106 and the rear touch panel 107 (touch-on) or an operation of dragging the touched finger on the touch panel (drag) to execute a predetermined function to the system control unit 104. Can be indicated. The front touch panel 106 has a pressure-sensitive structure, and a release operation can be performed by further performing a pressing operation after the touch operation.

  The system control unit 104 performs overall control of the digital camera by controlling the operation of each unit constituting the digital camera, in addition to the various controls and arithmetic processing described above.

  Next, a touch operation on the front touch panel 106 and the rear touch panel 107 in the digital camera and a display control executed according to the touch operation will be described.

  FIG. 2A is a schematic diagram illustrating a state where the user grips the camera body 101 and holds the digital camera with respect to the subject. The user holds the grip 201 of the camera body 101 with his right hand, and the front touch panel 106 is arranged near the position where the index finger is located in this state. Further, the rear touch panel 107 is arranged near the position where the thumb is located with the grip portion 201 held by the right hand. In the following description, the description will be given on the assumption that the operation is performed using the index finger and the thumb, but the present invention is not limited to this, and the operation may be performed using another finger. The used operation may be used.

  FIG. 2B is a diagram illustrating an example of the display screen 202 of the display device 105. The liquid crystal display device 105a, which is the display device 105, and the EVF 105b are arranged on the back of the camera body 101, and the user can check the display screen 202 when checking the shooting composition and the playback screen after shooting. . The display screen 202 is a display screen that the user visually recognizes when operating the digital camera, and may be either the liquid crystal display device 105a or the EVF 105b.

  The display screen 202 has a screen area 203 that is a display area for a live view image or a reproduced image. An information display unit 204 that displays various information (aperture, shutter speed, ISO sensitivity, exposure correction degree, and the like) necessary for shooting is provided below the screen area 203. A cursor 205 is displayed in the screen area 203. At the time of imaging, the cursor 205 is used, for example, as an index for indicating an AF distance measurement point or an AE photometry point. That is, the cursor 205 is an example of an item displayed on the screen area 203 for the purpose of assisting the imaging operation or the like.

  FIG. 3A is a schematic diagram illustrating a state in which the user performs an operation of moving a cursor 205 displayed in the screen area 203. FIG. 3B shows the display screen 202 after the cursor 205 has been moved from the position shown in FIG. 2B by the operation shown in FIG. 3A. The user can move the position of the cursor 205 on the screen area 203 by operating either the front touch panel 106 or the rear touch panel 107. Here, the operation of the rear touch panel 107 will be described.

  The user performs an operation of moving the thumb grounded to the touch point P301 on the rear touch panel 107 to the lower right side on the rear touch panel 107 as indicated by an arrow V301. The touch point P301 slides on the rear touch panel 107 in accordance with the movement of the thumb, and the cursor 205 continuously moves to the lower right in the screen area 203 according to the amount of the slide. As a result, the cursor 205 has moved from the position shown in FIG. 2B to the position shown in FIG. In this way, the user can continuously move the cursor 205 to any position on the screen area 203 by operating the rear touch panel 107. Note that the display position of the cursor 205 is limited to a position determined by the system control unit 104 to be positionable.

  The operation of moving the cursor 205 only needs to be set so that the sliding of the touch point on the touch panel is regarded as the movement of the cursor 205. Therefore, the movement of the cursor 205 is not limited to the operation on the rear touch panel 107, and may be performed by operating the front touch panel 106 or another operation member.

  Next, operations on the front touch panel 106 and the rear touch panel 107 for enlarging / reducing an image displayed in the screen area 203 will be described. FIG. 4A is a schematic diagram illustrating a state where the user is performing an operation of enlarging a display image. FIG. 4B is a diagram showing a state where the display image is enlarged and displayed by the operation shown in FIG. FIG. 4C shows the position of the image (enlarged image) displayed in the screen area 203 in FIG. 4B in the original image (entire image), that is, which area of the original image is enlarged and displayed. FIG.

  As shown in FIG. 4A, the user can perform an operation of enlarging an image displayed on the screen area 203 by simultaneously moving the index finger touching the front touch panel 106 and the thumb touching the rear touch panel 107. It is assumed that the display of the screen area 203 before the operation is as shown in FIG. The user performs a first sliding operation of sliding the touch point P401 by moving the index finger, which has touched the touch point P401 on the front touch panel 106, in the direction indicated by the arrow V401. At the same time as the first slide operation, the user performs a second slide operation of sliding the touch point P402 by moving the thumb touching the touch point P402 on the rear touch panel 107 in the direction indicated by the arrow V402.

  By the first slide operation and the second slide operation, the screen area 203 is changed from the entire display state of FIG. 2B to a partial area 403 shown in FIG. 4C as shown in FIG. The state transits to a partially enlarged display state in which the image is enlarged. In the present embodiment, in the partial enlarged display, the display image is continuously enlarged while maintaining the aspect ratio in accordance with the slide amount of each touch point of the thumb and the forefinger around the cursor 205 at the time of the slide operation. It is configured to change. Although the cursor 205 is not displayed in the display state of FIG. 4B, the present invention is not limited to such a configuration, and the cursor 205 may be displayed.

  Note that the system control unit 104 sets an operation mode for moving the cursor 205 described with reference to FIG. 3 and an operation mode for enlarging / reducing a display image described with reference to FIG. The determination method for switching is as follows. When the touch point on the front touch panel 106 slides by a slide amount equal to or more than a predetermined threshold while the touch point on the rear touch panel 107 slides, the system control unit 104 is performing an operation on the front touch panel 106 and the rear touch panel 107. Is determined. The system control unit 104 sets the operation mode for enlarging / reducing the display image according to the result of this determination. On the other hand, if the sliding amount of the touch point on the front touch panel 106 during the sliding of the touch point on the rear touch panel 107 is smaller than a predetermined threshold, the operation mode of moving the cursor 205 is set.

  Next, an operation for adjusting (changing) the enlargement position after performing the enlargement operation of the display image in the screen area 203 will be described. FIG. 5A is a schematic diagram illustrating a state where the user is performing an operation of moving the enlarged image of the display image. FIG. 5B is a diagram showing a display state after the enlarged image has been moved by the operation shown in FIG. 5A. FIG. 5C is a diagram illustrating the position of the enlarged image displayed in the screen area 203 in the original image in FIG. 5B.

  It is assumed that an area 503 shown in FIG. 5C is displayed in the screen area 203 before the operation. In this state, as shown in FIG. 5A, the user moves the thumb touching the touch point P502 on the rear touch panel 107 in an arbitrary direction indicated by the cross arrow V501 to slide the touch point P502. Do. Thereby, as shown in FIG. 5C, the area displayed on the screen area 203 is continuously moved in an arbitrary direction indicated by the cross arrow V501a corresponding to the cross arrow V501 according to the sliding amount of the touch point P502. Can be done.

  In FIG. 5A, the user slides the touch point P502 by moving the thumb touching the touch point P502 on the rear touch panel 107 in the lower right direction indicated by the arrow V502. Then, as shown in FIG. 5C, the area 503 displayed in the screen area 203 moves in the lower right direction indicated by the arrow V502a corresponding to the arrow V502 according to the sliding amount of the touch point P502. Move continuously. As a result, the area displayed on the screen area 203 moves from the area 503 to the area 503a. As a result, as shown in FIG. 5B, the area 503a is displayed on the screen area 203.

  When the user performs the first slide operation and the second slide operation described with reference to FIG. 4 again simultaneously in the display state of FIG. 5B, the system control unit 104 performs the enlargement / reduction. The display control is switched to the operation mode, and the display image is further continuously and enlargedly displayed. On the other hand, when the user slides the touch point P401 in the direction opposite to the arrow V401 (see FIG. 4A) and performs the operation of sliding the touch point P402 in the direction opposite to the arrow V402 (see FIG. 4A), Images displayed in the screen area 203 are continuously reduced and displayed.

  5A shows a state in which the index finger is in contact with the front touch panel 106 while the display position is moved in the enlarged display state described with reference to FIG. The fingers need not be grounded. From a state in which the user touches the ground to the front touch panel 106 and the rear touch panel 107 as shown in FIG. It is assumed that the touch panel 106 is touched again. In this case, the system control unit 104 cancels the operation mode of enlargement / reduction of the display image and returns the display in the screen area 203 to the screen before the enlargement / reduction operation. The operation for adjusting the reduction position after performing the reduction operation on the display image in the screen area 203 is similar to the operation for adjusting the enlargement position described above, and thus the description is omitted.

  Next, the slide operation on the front touch panel 106 and the rear touch panel 107 for performing the enlargement / reduction display will be described in more detail. In particular, with reference to FIG. 6, a description will be given of a definition of determining whether the slide operation is determined to be an enlargement operation or a reduction operation when slide operations are performed simultaneously on the front touch panel 106 and the rear touch panel 107. I do.

  FIG. 6A is a diagram illustrating a pinch-out operation on the display screen 601 of one flat touch panel by the index finger and the thumb. The pinch-out operation is an operation of enlarging the display by sliding the index finger and the thumb such that the distance between the touch points P602 and P603 of the index finger and the thumb (the distance L between the touch points) is increased.

  The touch points P602 and P603 each have a certain area. Therefore, the system control unit 104 determines that the relative distance between the coordinates of the center of gravity of each of the touch points P602 and P603 is an enlargement operation when the distance L between the touch points increases, and performs enlarged display control of the display image. Conversely, when the distance L between touch points decreases, it is determined that a reduction operation has been performed, and reduction display control of the display image is performed.

  Whether the operation performed on one flat touch panel is an enlargement process or a reduction process can be easily determined based on the increase or decrease of the distance L between touch points. On the other hand, for simultaneous operations on two flat touch panels that are not on one plane, the distance L between touch points cannot be simply calculated, and accordingly, the distance L is enlarged based on the increase or decrease of the distance L between touch points. It cannot be determined whether the operation is an operation or a reduction operation. Therefore, in the present embodiment, when the finger is in contact with each of the two flat touch panels that are not on one plane, the sliding direction and the sliding direction of each touch point on each flat touch panel are not the change of the distance between touch points. It is determined whether the operation is an enlargement operation or a reduction operation based on the detection result of the amount. That is, based on the result of detection of three conditions, that is, (1) simultaneously, (2) in a specific direction, and (3) a predetermined amount or more, the slide of each of the two touch points is determined to be an enlargement operation or a reduction operation Is determined.

  FIGS. 6B and 6C show different operations in a case where the index finger of the right hand is grounded on one of the two flat touch panels that are not on one plane and the thumb is grounded on the other. A line obtained by extending a vector that approximately bisects the angle between the index finger and the thumb starting from the base of the index finger and the thumb is defined as the axis 610 for convenience.

  FIG. 6B is drawn assuming a state in which the thumb and the forefinger are touching a stick-shaped object as indicated by a broken line 609 in the figure. One operation when performing an operation of enlarging an image on one flat touch panel in such a state is, intuitively, moving the tips of the index finger and the thumb in substantially the same direction along the extending direction of the shaft 610. Operation. In this case, the two touch points on the flat touch panel also move in substantially the same direction along the direction in which the shaft 610 extends. That is, the index finger is moved in the direction of arrow V605, and the thumb is moved in the direction of arrow V606. In addition, for example, even when the index finger is moved and the operation is performed with the right hand holding the rod-shaped grip, the index finger and the thumb perform the same operation.

  Another operation when performing an operation of enlarging an image on one flat touch panel in the state of the right hand shown in FIG. 6B is as follows: the thumb and the index finger diverge from the axis 610 as shown in FIG. This is the action of moving in the direction of In this case, when one plane including the axis 610 is determined, the index finger is moved in a direction diverging from the axis 610 (for example, a direction normal to the axis 610) as shown by an arrow V611, and the thumb is similarly moved to the arrow V612. Is moved in a direction diverging from the shaft 610 as shown in FIG.

  From these facts, a method of detecting a predetermined operation on the front touch panel 106 and the rear touch panel 107 which are not on one plane as an operation for enlarging or reducing the display can be performed as follows. That is, in the operation on the front touch panel 106, an operation of moving the index finger in the directions of the arrows V605 and V611 and sliding the touch point in the directions of the arrows V605 and V611 is defined as an enlargement operation. In the operation on the rear touch panel 107, an operation of moving the thumb in the directions of the arrows V606 and V612 and sliding the touch point in the directions of the arrows V606 and V612 is defined as an enlargement operation.

  Then, an operation of moving the index finger and the thumb in the direction opposite to the direction indicating the enlargement operation to slide the touch point is defined as a reduction operation. That is, a direction substantially opposite to the extending direction of the shaft 610 and a direction converging on the shaft 610 may be defined as a direction in which the reduction operation is performed. Note that the default value indicating the relationship between the sliding amount of the two touch points and the display magnification in the screen area 203 is set in advance in consideration of operability and stored in the storage device 108. May be adjustable.

  Since the manner in which the user grips the camera body 101 may change depending on individual differences, imaging conditions, physical condition, and the like, the design of the device sets the movement direction determined to indicate enlargement or reduction to a narrow area (angle). Limiting is not appropriate. Therefore, for example, it is desirable to determine whether the operation is an enlargement operation or a reduction operation by using an index indicating how much a movement component in a direction defined to indicate enlargement or reduction in the movement direction of the touch point is included. . When the enlargement / reduction operation is detected by the above-described method, it is not necessary to detect the relative distance between the touch points of the finger, so that the degree of freedom in arrangement and design of the touch panel is increased.

  As described above, the embodiment of the present invention has been described with reference to a digital camera. However, a device capable of arranging two flat touch panels and performing a touch operation with two fingers is not limited to a digital camera. Therefore, next, a camcorder and a head-mounted display (hereinafter, referred to as “HMD”) as examples of another device to which the present invention can be applied will be described.

  FIG. 7 is a perspective view showing a schematic configuration of the camcorder 700 and a state where the camcorder 700 is gripped by a right hand. The camcorder 700 includes a main body 701, an imaging lens 702 disposed on the front of the main body 701, and a movable display 705 disposed on one side of the main body 701. When the user grips main body 701 with the right hand, first touch panel 703 is arranged at the position where the tip of the index finger is placed on the upper surface of main body 701, and the tip of the thumb is placed on the back of main body 701. The second touch panel 704 is arranged at the position where the touch panel is touched.

  According to the description in FIG. 6, an axis 710 extending a vector that substantially bisects the angle between the thumb and the index finger is defined to extend from the lower side of the main body 701 to the upper side. The user moves the index finger to slide the touch point P721 in a direction diverging from the axis 710 as indicated by an arrow V721. At the same time, the user moves the thumb to slide the touch point P722 in the direction substantially the same as the direction in which the shaft 710 extends, as indicated by the arrow V722. Thus, the display image on the movable display 705 can be enlarged and displayed. Note that the display image on the movable display 705 can be reduced by moving the index finger and the thumb so that the touch points P721 and P722 slide in the directions opposite to the arrows V721 and V722, respectively.

  FIG. 8 is a perspective view showing a schematic configuration of the grip-type HMD 800 and a state where the HMD 800 is operated with the right hand. The HMD 800 includes an eyepiece 801, a first touch panel 802, and a second touch panel 803. By holding the HMD 800 with both hands or one hand and looking into the eyepiece 801, the user can appreciate the video and the like displayed on the display screen 805. The first touch panel 802 is disposed on the upper right side of the HMD 800 at a position where the tip of the right index finger is placed, and the second touch panel 803 is disposed on the lower right side of the HMD 800 where the tip of the thumb is placed. Are located in

  As described with reference to FIG. 6, an axis 810 that extends a vector that approximately bisects the angle between the thumb and the index finger is defined to cross the HMD 800 substantially horizontally (substantially parallel to the upper and lower surfaces). The user moves the index finger so as to slide the touch point P821 in the direction substantially the same as the direction in which the shaft 810 extends, as indicated by the arrow V821. At the same time, the user moves his thumb to slide the touch point P822 in the direction substantially the same as the direction in which the shaft 810 extends, as indicated by the arrow V822. Thus, a continuous enlarged display of the image displayed on the display screen 805 can be performed.

  As described above, according to the present invention, when performing a touch operation on two touch panels with two fingers of a hand holding an electronic device, an erroneous operation can be performed without releasing the hand holding the electronic device. It becomes possible to perform continuous operation instructions by a touch operation while suppressing the induction.

  As described above, the present invention has been described in detail based on the preferred embodiments. However, the present invention is not limited to these specific embodiments, and various forms that do not depart from the gist of the present invention are also included in the present invention. included. Furthermore, each of the embodiments described above is merely an embodiment of the present invention, and the embodiments can be appropriately combined.

  For example, various controls in the digital camera are performed by the system control unit 104. However, even when a plurality of hardware (for example, a plurality of processors and circuits) share processing, the entire control of the digital camera is performed. Good.

  The present invention is also applicable to a control device that communicates with an imaging device (including a network camera) via wired or wireless communication and controls the imaging device remotely. Examples of devices that remotely control the imaging device include devices such as smartphones, tablet PCs, and desktop PCs. It is possible to remotely control the imaging device by notifying the imaging device of commands for performing various operations and settings from the control device based on operations performed on the control device and processes performed on the control device. is there. Alternatively, the live view image captured by the imaging device may be received via a wired or wireless communication and displayed on the control device side.

  Furthermore, in the above description, the present invention has been described by taking an imaging device (digital camera) as an example. However, the present invention is not limited to the imaging device, but can be applied to any device having a display control device capable of touch input. is there. For example, the present invention can be applied to a personal computer, a PDA, a mobile phone terminal, a portable image viewer, a printer having a display, a digital photo frame, a music player, a game machine, an electronic book reader, and the like.

101 Camera body 104 System control unit 105 Display device 106 Front touch panel 107 Rear touch panel 201 Grip unit 202 Display screen 205 Cursor 700 Camcorder 703, 802 First touch panel 704, 803 Second touch panel 800 Head mounted display

Claims (9)

Grip part,
A first touch sensor provided on the grip portion,
A second touch sensor disposed on a plane different from the first touch sensor in the grip portion;
Detecting means for detecting a touch point on each of the first touch sensor and the second touch sensor;
When a slide of a touch point with respect to the second touch sensor is detected, an item displayed on a display screen of a display device is moved according to a slide direction and a slide amount of the touch point, and the first touch is performed. When the slide of the touch point with respect to the sensor and the slide of the touch point with respect to the second touch sensor are simultaneously detected, the slide direction and the slide amount of the touch point with respect to each of the first touch sensor and the second touch sensor are determined. Control means for continuously enlarging / reducing the image displayed on the display screen in response to the request.   The control means, when a slide of a touch point with respect to the second touch sensor is detected in a state where the image is enlarged or reduced, the enlargement position or the reduction position of the image displayed on the display screen, The display control device according to claim 1, wherein the display controller is continuously moved according to a slide direction and a slide amount of the touch point.   The control unit may be configured such that a touch point for each of the first touch sensor and the second touch sensor forms an angle between a finger operating the first touch sensor and a finger operating the second touch sensor. 3. The image displayed on the display screen is continuously enlarged when it is detected that the image is slid in substantially the same direction as the extending direction of the approximately bisecting vector. 3. The display control device according to 1.   The control unit may be configured such that a touch point for each of the first touch sensor and the second touch sensor forms an angle between a finger operating the first touch sensor and a finger operating the second touch sensor. The image displayed on the display screen is continuously enlarged when it is detected that the image is slid in a direction diverging from a substantially bisecting vector. 2. The display control device according to claim 1.   The control unit may be configured such that a touch point on each of the first touch sensor and the second touch sensor slides in a direction opposite to a direction for enlarging an image displayed on the display screen. The display control device according to claim 4, wherein when detected, the image displayed on the display screen is continuously reduced. The first touch sensor is provided at a position touched by the index finger of the hand holding the grip portion,
The display control device according to any one of claims 1 to 4, wherein the second touch sensor is provided at a portion where a thumb of a hand holding the grip portion touches. A display control method,
Detecting a touch point on the first touch sensor provided on the grip portion;
Detecting a touch point on a second touch sensor disposed on a different plane from the first touch sensor in the grip portion;
When sliding of a touch point with respect to the second touch sensor is detected, moving an item displayed on a display screen of a display device according to a sliding direction and a sliding amount of the touch point;
When the slide of the touch point with respect to the first touch sensor and the slide of the touch point with respect to the second touch sensor are simultaneously detected, the slide of the touch point with respect to each of the first touch sensor and the second touch sensor Continuously enlarging / reducing an image displayed on the display screen according to a direction.   A program for causing a computer to function as each unit of the display control device according to claim 1.   A computer-readable storage medium storing a program for causing a computer to function as each unit of the display control device according to claim 1.

Images