JP2017174029A - Image display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image display device which enables an intuitive operation to a superimposedly displayed image, in a touch panel input system.SOLUTION: The image display device includes display means for displaying an image, display surface operation means for detecting the touch operation of the display surface of the display means, and back-side operation means arranged on the rear surface side of the display means and detecting the touch operation. When the image is superimposedly displayed by the display means, the operation of the image displayed on the display surface side of superimposing display is assigned to the display surface operation means and the operation of the image displayed on the rear surface side of the superimposing display is assigned to the back-side operation means.SELECTED DRAWING: Figure 5

Description

  The present invention relates to an image display device, and more particularly to an image display device having a touch-type operation means.

  In recent years, there are many devices that adopt an input method using a touch panel. By using a touch panel for input, intuitive input such as gesture input can be performed. Gesture input is an input method in which a predetermined operation is associated with an operation of a specific device, and a specific operation is executed by inputting a gesture with a pen or a finger on the touch panel. Using the above input method, AF frame designation and menu operation are performed by the touch panel.

  When an arbitrary portion of the subject image displayed in the live view is tapped with a finger or a pen (hereinafter referred to as a tap), the tapped portion can be designated as an AF frame. In addition, an icon such as shooting operation ON / OFF by touch is superimposed on the live view image. The icon is displayed in a small size so as not to hide the live view image and so as not to overlap with the area where the AF frame can be specified.

  However, since the icon and its reaction area are small, it is difficult to touch the icon, which is inconvenient. Also, depending on the menu, unless a predetermined icon is touched, the menu selection cannot be made, and the operation is complicated.

  Patent Document 1 discloses a method in which a touch panel is arranged on the back surface of a touch panel on the display surface, and image processing such as enlargement and rotation of a display image is performed by operating both touch panels. By using this method, display switching of the display image can be performed without selecting a menu icon.

JP 2011-76233 A

  However, in the prior art disclosed in the above-mentioned Patent Document 1, since a predetermined process is performed by a combination of gesture input on the display surface touch panel and the back surface touch panel, selectable menus are limited. In addition, an operation method using a touch panel on the display surface and the back surface is not proposed for the superimposed image.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an image display device that enables an intuitive operation on a superimposed image in a touch panel input method.

In order to achieve the above object, an image display device according to the present invention includes:
Display means (41) for displaying an image, display surface operation means (42) for detecting a touch operation on the display surface of the display means, and a back surface operation means for detecting a touch operation arranged on the back side of the display means (44), and when the image is superimposed and displayed by the display means, the operation of the image displayed on the display surface side of the superimposed display is assigned to the display surface operation means, and the back surface of the superimposed display The operation of the image displayed on the side is assigned to the back surface operation means.

  ADVANTAGE OF THE INVENTION According to this invention, the image display apparatus which enabled intuitive operation with respect to the superimposed image can be provided.

1 is an external view of a digital camera that is an example of an image display device in the present embodiment. 1 is an external view of a digital camera that is an example of an image display device in the present embodiment. 1 is an external view of a digital camera that is an example of an image display device in the present embodiment. It is a figure which shows the movable direction of the digital camera display part which is an example of the image display apparatus in a present Example. (A) (b) (c) (d) is a figure which shows the movable form of the digital camera display part which is an example of the image display apparatus in a present Example, respectively. It is a block diagram of the digital camera which is an example of the image display apparatus in a present Example. It is a figure which shows an example of the display screen of LV mode in a present Example. It is a figure which shows an example of the flowchart of menu operation in LV mode in a present Example. It is a figure which shows an example of the flowchart of the focusing frame selection operation of the LV mode in a present Example. It is a figure which shows an example of the display screen of the image processing mode in a present Example. It is a figure which shows an example of the flowchart of the image processing mode in a present Example.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  1A, 1B, and 1C are external views of a digital camera as an example of the image display device of the present invention. 1A is a front perspective view of the digital camera 100, and FIG. 1B is a rear perspective view of the digital camera 100. FIG. 1C is a rear perspective view in which the display unit 40 of the digital camera 100 is opened.

  In FIG. 1, a display unit 40 is a unit that displays an image and various types of information, and is supported by a hinge portion 43 so as to be rotatable about two axes in an opening / closing direction and an upside down direction.

  The display unit 40 includes an LCD panel 41 made of liquid crystal or the like, a touch panel 42 configured integrally with the LCD panel 41, and a touch pad 44 disposed on the opposite side of the display surface of the display unit 40. The

  FIG. 1B shows a state in which the display unit 40 is accommodated with the touch pad 44 exposed to the outside. At this time, the LCD panel 41 serving as a display surface is hidden facing the main body of the digital camera 100. FIG. 1C shows a state in which the display unit 40 is rotated from the state shown in FIG. At this time, the LCD panel 41 serving as the display surface of the display unit 40 is opposed to the photographer.

  The shutter button 61 is an operation unit for issuing a shooting instruction.

  The mode switch 60 is an operation unit for switching various modes.

  The main electronic dial 71 is a rotation operation member. By turning the main electronic dial 71, setting values such as a shutter speed and an aperture can be changed.

  The power switch 72 is an operation member that switches the power of the digital camera 100 on and off.

  The cross key 74 is a cross key capable of pushing in the upper, lower, left, and right portions. An operation corresponding to the pressed portion of the cross key 74 is possible.

  The SET button 75 is a push button and is mainly used for determining a selection item.

  The LV button 76 is a button for switching ON / OFF of the live view (hereinafter referred to as LV) in the still image shooting mode. In the moving image shooting mode, it is used to start and stop moving image shooting (recording).

  The enlargement button 77 is an operation button for turning on and off the enlargement mode and changing the enlargement ratio during the enlargement mode in the live view display in the photographing mode. In the reproduction mode, it functions as an enlargement button for enlarging the reproduction image and increasing the enlargement ratio.

  The playback button 78 is an operation button for switching between the shooting mode and the playback mode. When the playback button 78 is pressed during the shooting mode, the mode is switched to the playback mode, and the latest image among the images recorded on the recording medium 200 can be displayed on the display unit 40.

  The quick return mirror 12 is instructed by the system control unit 50 and is raised and lowered by an actuator (not shown).

  The camera side communication terminal 10 is a communication terminal for the digital camera 100 to communicate with the lens side (detachable).

  The eyepiece finder 16 is a view-type finder for observing the focusing screen 13 and confirming the focus and composition of the optical image of the subject obtained through the lens unit 150.

  A lid 202 is a slot lid for storing the recording medium 200.

  The grip portion 90 is a holding portion that is shaped to be easily gripped with the right hand when the user holds the digital camera 100.

  With reference to FIG. 2, the movable direction of the display unit 40 with respect to the digital camera 100 will be described.

  In FIG. 2, the display unit 40 is rotatable with respect to the main body 110 about two axes in the illustrated opening / closing direction and upside down direction with respect to the main body 110 via a hinge portion 43 (connecting portion).

  The panel state detection unit 45, which will be described later with reference to FIG. Similarly, the data is output to the system control unit 50 described later with reference to FIG. Further, the panel state detection unit 45 performs system control on a detection result in which the display unit 40 is rotated in the up and down direction by a predetermined angle or more and turned upward or downward, and the other state is the normal position. To the unit 50.

  The panel state detection unit 45 can detect at least the positional relationship shown in FIG.

  Normal position storage state (FIG. 3A): The display unit 40 is in the normal position and in the closed state. The display surface (LCD panel 41 side) of the display unit 40 is stored facing the main body of the digital camera 100, and the touch pad 44 on the back surface is exposed.

  Normal position open state (FIG. 3B): a state in which the display unit 40 is in the normal position and in the open state. The display unit 40 is opened approximately 180 ° in the opening / closing direction from the normal position storage state. In this posture, the display surface of the display unit 40 faces away from the imaging surface of the camera, and the display surface of the display unit 40 is seen from the photographer when the photographer holds the grip 90 with his right hand.

  Inverted open state (FIG. 3C): a state in which the display unit 40 is in the inverted state and in the open state. From the normal position open state, the display unit 40 is rotated approximately 180 ° in the upside down direction. When the display surface of the display unit 40 faces the same side as the imaging surface of the digital camera 100 and the photographer grips the grip unit 90 with the right hand, the display surface of the display unit 40 can be seen from the subject side. Can see the back surface of the display unit 40 (touch pad 44 side).

  Reverse storage state (FIG. 3A): a state in which the display unit 40 is in a reverse state and in a closed state. From the inverted open state, the display unit 40 is closed approximately 180 ° in the opening and closing direction. The display unit 40 is housed in the main body of the digital camera 100 with the display surface exposed, and the surface of the touch pad 44 faces the digital camera 100.

  Note that the operation method in the present invention assumes that the operation is performed in the normal position open state of FIG.

  FIG. 4 is a block diagram illustrating a configuration example of the digital camera 100 according to the present embodiment.

  In FIG. 4, a lens unit 150 is a lens unit on which a replaceable photographic lens is mounted.

  The lens 103 is usually composed of a plurality of lenses, but here, only a single lens is shown for simplicity.

  The lens side communication terminal 6 is a communication terminal for the lens unit 150 to communicate with the digital camera 100 side, and the camera side communication terminal 10 is a communication terminal for the digital camera 100 to communicate with the lens unit 150 side.

  The lens unit 150 communicates with the system control unit 50 via the lens side communication terminal 6 and the camera side communication terminal 10, and controls the aperture 102 via the aperture drive circuit 2 by the internal lens system control circuit 4. The focus is adjusted by displacing the position of the lens 103 via the AF driving circuit 3.

  The AE sensor 17 measures the luminance of the subject that has passed through the lens unit 150.

  The focus detection unit 11 outputs defocus amount information to the system control unit 50. Based on this, the system control unit 50 controls the lens unit 150 to perform phase difference AF.

  The quick return mirror 12 (hereinafter, mirror 12) is instructed by the system control unit 50 during exposure, live view shooting, and moving image shooting, and is moved up and down by an actuator (not shown). The mirror 12 is a mirror for switching the light beam incident from the lens 103 between the viewfinder 16 side and the image pickup element unit 22 side. Normally, the mirror 12 is arranged so as to reflect the light beam to the viewfinder 16, but in the case of shooting or live view display, the mirror 12 is moved upward to guide the light beam to the image sensor unit 22. Bounces away from the light beam (mirror up). Further, the mirror 12 is a half mirror so that the central part can transmit part of the light, and part of the light beam is transmitted so as to enter the focus detection part 11 for performing focus detection.

  The photographer can confirm the focus and composition of the optical image of the subject obtained through the lens unit 150 by observing the focusing screen 13 via the pentaprism 14 and the finder 16.

  The shutter 101 is a focal plane shutter that can freely control the exposure time of the image sensor unit 22 under the control of the system control unit 50.

  The image sensor unit 22 is an image sensor composed of a CCD, a CMOS element, or the like that converts an optical image into an electrical signal. The A / D converter 23 converts an analog signal into a digital signal. The A / D converter 23 is used to convert an analog signal output from the imaging element unit 22 into a digital signal.

  The image processing unit 25 performs resizing processing and color conversion processing such as predetermined pixel interpolation and reduction on the data from the A / D converter 23 or the data from the memory control unit 15. The image processing unit 25 performs predetermined calculation processing using the captured image data, and the system control unit 50 performs exposure control and distance measurement control based on the obtained calculation result. Thereby, AF (autofocus) processing, AE (automatic exposure) processing, and EF (flash pre-emission) processing of the TTL (through-the-lens) method are performed. The image processing unit 25 further performs predetermined calculation processing using the captured image data, and also performs TTL AWB (auto white balance) processing based on the obtained calculation result.

  Output data from the A / D converter 23 is directly written into the memory 32 via the image processing unit 25 and the memory control unit 15 or via the memory control unit 15.

  The memory 32 stores image data obtained by the image sensor unit 22 and converted into digital data by the A / D converter 23 and image data to be displayed on the LCD panel 41. The memory 32 has a storage capacity sufficient to store a predetermined number of still images, a moving image and sound for a predetermined time. The memory 32 also serves as an image display memory (video memory).

  The D / A converter 24 converts the image display data stored in the memory 32 into an analog signal and supplies it to the LCD panel 41. Thus, the display image data written in the memory 32 is displayed on the LCD panel 41 via the D / A converter 24. A digital signal once A / D converted by the A / D converter 23 and stored in the memory 32 is converted into an analog signal by the D / A converter 24 and sequentially transferred to the LCD panel 41 for display as an electronic viewfinder. It functions and can perform live view display (live view display).

  The nonvolatile memory 56 is an electrically erasable / recordable memory, and for example, an EEPROM or the like is used. The nonvolatile memory 56 stores constants, programs, and the like for operating the system control unit 50. Here, the program is a program for executing various flowcharts described later in the present embodiment.

  The system control unit 50 controls the entire digital camera 100. By executing the program recorded in the non-volatile memory 56 described above, each process of the present embodiment to be described later is realized.

  A system memory 52 is a RAM. In the system memory 52, constants and variables for operation of the system control unit 50, programs read from the nonvolatile memory 56, and the like are expanded. The system control unit also performs display control by controlling the memory 32, the D / A converter 24, the LCD panel 41, and the like.

  The system timer 53 is a time measuring unit that measures the time used for various controls and the time of a built-in clock.

  The mode switch 60, the first shutter switch 62, the second shutter switch 64, and the operation unit 70 are operation means for inputting various operation instructions to the system control unit 50.

  The mode switch 60 switches the operation mode of the system control unit 50 to any one of a still image recording mode, a moving image recording mode, a reproduction mode, and the like. The modes included in the still image recording mode include an auto shooting mode, an auto scene discrimination mode, a manual mode, an aperture priority mode (Av mode), a shutter speed priority mode (Tv mode), and various scene modes that are shooting settings for each shooting scene. , Program AE mode, custom mode, etc. The mode changeover switch 60 can directly switch to one of these modes included in the still image shooting mode. Alternatively, after switching to the still image shooting mode once with the mode switch 60, the mode may be switched to any one of these modes included in the still image shooting mode using another operation member. Similarly, the moving image shooting mode may include a plurality of modes.

  The first shutter switch 62 is turned on when the shutter button 61 provided in the digital camera 100 is being operated, so-called half-press (shooting preparation instruction), and generates a first shutter switch signal SW1. In response to the first shutter switch signal SW1, operations such as AF (autofocus) processing, AE (automatic exposure) processing, AWB (auto white balance) processing, and EF (flash pre-emission) processing are started.

  The second shutter switch 64 is turned ON when the operation of the shutter button 61 is completed, that is, when it is fully pressed (shooting instruction), and generates a second shutter switch signal SW2. In response to the second shutter switch signal SW2, the system control unit 50 starts a series of photographing processing operations from reading a signal from the image sensor unit 22 to writing image data on the recording medium 200.

  Each operation member of the operation unit 70 is appropriately assigned a function for each scene by selecting and operating various function icons displayed on the LCD panel 41, and functions as various function buttons. Examples of the function buttons include an end button, a return button, an image advance button, a jump button, a narrowing button, and an attribute change button. For example, when a menu button is pressed, various settable menu screens are displayed on the LCD panel 41. The user can make various settings using the menu screen displayed on the LCD panel 41, and the four-way buttons and the SET button.

  The operation unit 70 is various operation members as an input unit that receives an operation from a user. The operation unit 70 includes at least the following operation units. A touch panel 42, a touch pad, a shutter button 61, a main electronic dial 71, a power switch 72, a sub electronic dial 73, a cross key 74, a SET button 75, an LV button 76, an enlarge button 77, and a play button 78.

  The power control unit 80 includes a battery detection circuit, a DC-DC converter, a switch circuit that switches a block to be energized, and the like, and detects whether or not a battery is installed, the type of battery, and the remaining battery level. Further, the power control unit 80 controls the DC-DC converter based on the detection result and an instruction from the system control unit 50, and supplies a necessary voltage to each unit including the recording medium 200 for a necessary period.

  The power supply unit 30 includes a primary battery such as an alkaline battery or a lithium battery, a secondary battery such as a NiCd battery, a NiMH battery, or a Li battery, an AC adapter, or the like.

  The recording medium I / F 18 is an interface with the recording medium 200 such as a memory card or a hard disk.

  The recording medium 200 is a recording medium such as a memory card for recording a captured image, and includes a semiconductor memory, a magnetic disk, or the like.

  As one of the operation units 70, a touch panel 42 that can detect contact with the LCD panel 41 is included. The touch panel 42 and the LCD panel 41 can be configured integrally. For example, the touch panel 42 is configured such that the light transmittance does not hinder the display of the LCD panel 41, and is attached to the upper layer of the display surface of the LCD panel 41. Then, the input coordinates on the touch panel 42 are associated with the display coordinates on the LCD panel 41. Thereby, it is possible to configure a GUI as if the user can directly operate the screen displayed on the LCD panel 41.

  Further, as described above, the detectable touch pad 44 is provided on the surface opposite to the display surface of the display unit 40. As with the touch panel 42, the touch pad 44 associates input coordinates on the touch pad 44 with display coordinates on the LCD panel 41. Thereby, it is possible to configure a GUI as if the user can operate the display on the LCD panel 41 from the back side.

  The system control unit 50 can detect the following operations on the touch panel 42 and the touch pad 44. Touch panel 42 is touched with a finger or a pen (hereinafter referred to as touchdown). The touch panel 42 is touched with a finger or a pen (hereinafter referred to as touch-on). The touch panel 42 is moved while being touched with a finger or a pen (hereinafter referred to as a move). The finger or pen that has been touching the touch panel 42 is released (hereinafter referred to as touch-up). A state in which nothing touches the touch panel 42 (hereinafter referred to as touch-off). The system control unit 50 is notified of these operations and the position coordinates where the finger or pen is touching the touch panel 42, and the system control unit 50 performs any operation on the touch panel 42 based on the notified information. It is determined.

  An operation in which the touch-down and touch-up operations are performed in a short time that is less than or equal to a predetermined time is called a tap. The tap is an operation of lightly tapping the touch panel 42 with a finger once.

  Further, performing the tap operation twice within a predetermined time is called a double tap, and is an operation of tapping the touch panel 42 lightly with a finger twice.

  In addition, an operation that is touched on for a predetermined time or longer is called a long tap, and is an operation of long-pressing an arbitrary place on the touch panel 42.

  Regarding the move, the direction of movement of the finger or pen moving on the touch panel 42 can be determined for each vertical component / horizontal component on the touch panel 42 based on the change in position coordinates.

  It is assumed that a stroke is drawn when touch-up is performed on the touch panel 42 through a certain move from touch-down. The operation of drawing a stroke quickly is called a flick. The flick is an operation of quickly moving a certain distance while touching the finger on the touch panel and releasing it, in other words, an operation of quickly tracing the touch panel 42 with a finger.

  If it is detected that the moving is performed at a predetermined speed or more over a predetermined distance, and a touch-up is detected as it is, it can be determined that a flick has been performed.

  In addition, when it is detected that the movement is performed at a predetermined distance or more and less than a predetermined speed, it is determined that the drag has been performed.

  The operations such as tap, double tap, long tap, flick, and drag are collectively referred to as a gesture. The above operation method is common to the touch panel 42 and the touch pad 44. The touch panel 42 and the touch pad 44 are any of various methods such as a resistive film method, a capacitance method, a surface acoustic wave method, an infrared method, an electromagnetic induction method, an image recognition method, and a photosensor method. It may be used.

Example 1
FIG. 5 illustrates a screen displayed on the LCD panel 41 in the LV mode. The LCD panel 41 displays a live view image 501 captured by the image sensor unit 22 and via the D / A converter 24 and the like, and functions as an electronic viewfinder.

  Various menu buttons are superimposed on the live view image 501. From the upper left of the screen, an AF button 502 for selecting an AF function, an AE button 503 for selecting an AE function, and a white balance button (hereinafter referred to as a WB button) 504 for selecting a white balance function are displayed. In addition, from the upper right of the screen, a drive mode button 505 for selecting a drive mode such as single shooting or continuous shooting, a recording image quality button 506 for selecting a recording image quality, and a touch shutter function for automatically performing from focusing to imaging by touch operation are selected. A touch shutter button 507 is displayed. These menu buttons are displayed as if they are stacked on the front of the live view image 501. On the other hand, the AF frame 508 is displayed as a rectangular frame at a corresponding position on the display surface according to the location where the touch pad 44 on the back surface of the display unit 40 is tapped.

  The operation of each menu button will be described.

  When a tap operation is performed on each menu button for display from the touch panel 42 on the display surface, the function is switched according to each menu.

  When the AF button 502 is tapped on the touch panel 42, the AF ranging area is switched. The distance measurement area is “one-point AF” where the area equivalent to the AF frame 508 is the distance measurement area, “spot one-point AF” where the area narrower than the one-point AF is the distance measurement area, and the one-point AF peripheral area A plurality of distance measurement areas such as “area expansion AF” are prepared in advance, and the distance measurement areas are sequentially switched each time a tap operation is performed. Note that the icon of the AF button 502 is prepared for each ranging area, and is changed according to the selected ranging area.

  Similarly, when the AE button 503 is tapped on the touch panel 42, the photometric characteristics of the AE are switched. The metering characteristics can be switched using `` partial metering '' with a specified area in the center of the subject image as the metering area, `` spot metering '' with an area narrower than partial metering as the metering area, and emphasis on the center. A plurality of metering characteristics such as “center-weighted average metering” are prepared in advance, and the metering characteristics are sequentially switched each time a tap operation is performed. Note that the icon of the AE button is prepared for each photometric characteristic, and is changed according to the selected photometric characteristic.

  When the WB button 504 is tapped on the touch panel 42, the white balance mode is switched. For white balance mode switching, multiple white balance modes such as “sunlight”, “shade”, and “incandescent light bulb” are prepared in advance for each light source color temperature of the subject, and the white balance is switched sequentially with each tap operation. . Note that the icon of the WB button is prepared for each mode, and is changed according to the selected white balance mode.

  When the drive mode button 505 is tapped on the touch panel 42, the shooting drive mode is switched such as single shooting or continuous shooting. The drive mode is switched by single shooting for single shooting, high-speed continuous shooting for continuous shooting at high frame speed, low-speed continuous shooting for continuous shooting at low frame speed, and self-timer shooting. A plurality of drive modes such as a “self-timer” are prepared in advance, and the drive modes are switched sequentially each time a tap operation is performed. The drive mode icon is prepared for each mode, and is changed according to the selected drive mode.

  When the recording image quality button 506 is tapped on the touch panel 42, the recording image quality setting is switched. The recording image quality setting is switched between “L (large)” for recording with a high-quality JPEG file, “M (middle)” for recording with a medium-quality JPEG file, and “S (” for recording with a low-quality JPEG file. A plurality of recording image quality such as “Small” are prepared in advance, and the setting of the recording image quality is switched sequentially with each tap operation. A recording image quality icon is prepared for each setting and is changed according to the selected recording image quality.

  The touch shutter button 507 switches the touch shutter function ON / OFF. The touch shutter function is a function that automatically performs from focusing to imaging by a touch operation. In the present embodiment, the position of the AF frame 508 is designated by a tap operation on the touch pad 44 on the back surface for selecting the AF frame 508, and a series of driving from focusing to imaging is performed.

  Each time a tap operation on the touch shutter button 507 is performed, the ON / OFF setting of the touch shutter function is switched. Note that the icon of the touch shutter button is prepared for ON and OFF settings, respectively, and is changed according to the selected setting.

  Further, when the touch pad 44 on the back surface of the display unit 40 is tapped, the AF frame 508 is displayed as a rectangular frame in the live view image 501. The AF frame 508 is displayed at a location where the tap position of the touch pad 44 is projected onto the display surface. Note that the AF frame 508 is configured with a GUI that can move and select within the live view image 501 by a drag operation. The AF frame 508 can also select an area where each menu button is displayed. When the user taps the area where the menu button is displayed from the touch pad 44 on the back surface, the menu button and the AF frame 508 are displayed in a superimposed manner. At this time, the AF frame 508 is displayed as if it is stacked on the back of the menu button and on the front of the live view image 501.

  As described above, the operation method according to the present invention operates both the display surface touch panel 42 of the display unit 40 and the touch pad 44 disposed on the back surface thereof. It is assumed to operate.

  In the embodiment of the present invention, the function of each menu is switched by a tap operation on the menu button. However, a transition to the detailed menu screen of each menu is performed by a double tap operation on the menu button. You may comprise so that it may do.

  FIG. 6 is a flowchart showing the operation of the display surface touch panel in the LV photographing mode of the embodiment of the present invention.

  When the LV button 76 is pressed and the LV mode is entered, a live view image is displayed on the LCD panel 41 and a menu button is superimposed on the live view image in step S101. The live view image is displayed by storing the subject image data acquired by the image sensor unit 22 in the memory 32 via the A / D converter 23 and converting the stored data into an analog signal by the D / A converter 24. This is done by supplying to the panel 41.

  When the live view image and the menu button are displayed in step S101, the process proceeds to step S102, and the system control unit 50 determines whether or not the touch panel 42 on the display surface has been input by the user. Input detection on the touch panel 42 detects a user's touch operation by a detection method such as a resistive film method or a capacitance method.

  When the system control unit 50 detects an input on the touch panel 42 in step S102, the process proceeds to step S103, and gesture detection is performed. In gesture detection, the system control unit 50 detects input from the touch panel 42 and detects whether a tap, double tap, long tap, flick, or drag operation has been performed.

  If gesture detection is performed in step S103, it will progress to step S104 and it will be determined whether tap operation was performed to the menu button area | region. In the tap operation to the menu button area, the system control unit 50 determines whether or not the tap operation has been performed on the area where each menu button of the LCD panel 41 is displayed based on the gesture detection result in step S103.

  If it is determined in step S104 that the tap operation has been performed on the menu button area, the process proceeds to step S105, and the function of each menu is switched. As described above, the menu function is switched according to the menu button tapped by the system control unit 50.

  If function switching of each menu is performed in step S105, it will progress to step S106 and a menu icon display will be updated. Menu icons are prepared in advance for each menu function, and the system control unit 50 updates the menu icons displayed on the LCD panel 41 via the image processing unit 25.

  When the menu icon is updated in step S106, the system control unit 50 waits for the next operation to be accepted.

  FIG. 7 is a flowchart showing the operation of the back touch pad in the LV photographing mode of the embodiment of the present invention.

  When the LV button 76 is pressed and the LV mode is entered, a live view image is displayed on the LCD panel 41 in step S201, and a menu button is displayed superimposed on the live view image. The live view image is displayed by storing the subject image data acquired by the image sensor unit 22 in the memory 32 via the A / D converter 23 and converting the stored data into an analog signal by the D / A converter 24. This is done by supplying to the panel 41.

  When the live view image and the menu button are displayed in step S201, the process proceeds to step S202, and the system control unit 50 determines whether or not the touchpad 44 on the back side is input by the user. Input detection of the touch pad 44 detects a user's touch operation by a detection method such as a resistive film method or a capacitance method.

  When the system control unit 50 detects an input of the touch pad 44 in step S202, the process proceeds to step S203, and gesture detection is performed. In gesture detection, the system control unit 50 detects an input of the touch pad 44 and detects whether a tap, double tap, long tap, flick, or drag operation has been performed.

  If gesture detection is performed in step S203, it will progress to step S204 and it will be determined whether tap operation was performed to the AF frame designation | designated area | region. Here, the AF frame assignable area is an area where the existing contrast AF is possible, and is the same as the area where the live view image 501 is displayed. The detection of the tap operation to the AF frame assignable area is determined by the system control unit 50 based on the input detection of the touch pad 44.

  If it is determined in step S204 that the tap operation has been performed on the AF frame assignable area, the process proceeds to step S205, where it is determined whether or not the touch shutter function is ON. Whether or not the touch shutter function is ON is determined by the system control unit 50 reading the touch shutter function setting status at that time.

  If it is determined in step S205 that the touch shutter function is ON, the process advances to step S206 to perform a series of operations from updating the display of the AF frame 508, AF driving, and imaging driving. The display update of the AF frame 508 is performed by the system control unit 50 displaying the AF frame 508 on the LCD panel 41 via the image processing unit 25 or the like based on the coordinate position of the tap input from the touch pad 44. Done. Further, AF driving is performed as follows. In the existing contrast AF method, the system control unit 50 detects the contrast value of the live view image 501 based on the information of the image processing unit 25, and the lens system control circuit 4 uses the lens driving amount information obtained from the result. Transmit to. The lens system control circuit 4 drives the AF driving circuit 3 based on the information received from the system control unit, whereby AF driving is performed. The imaging drive is performed as follows. After the AF driving is completed, the system control unit 50 drives the shutter 101. A signal accumulated in the image sensor unit 22 during driving of the shutter 101 is transmitted as image data to the memory control unit 15 via the A / D converter 23. The memory control unit 15 writes the image data into the memory 32. On the other hand, the memory control unit 15 transmits image data to the LCD panel 41 via the D / A converter 24 in order to display the photographing result.

  When the AF frame display update, AF driving, and imaging driving are performed in step 206, the system control unit 50 waits for the next operation to be accepted.

  If it is determined in step S205 that the touch shutter function is OFF, the process proceeds to step S210, where only the display of the AF frame 508 is updated, and the system control unit 50 waits to accept the next operation. .

  As described in FIGS. 6 and 7, the operation of the touch panel 42 on the display surface is divided into the operation of the menu button, and the operation of the touch pad on the back surface is divided into the operation of specifying the AF frame in the live view image 501. In this way, by assigning operation members according to the hierarchy of superimposed display, it is possible to provide an intuitive operation to the user.

(Example 2)
FIG. 8 illustrates a screen displayed on the LCD panel 41 in the image editing mode.

  FIG. 8 shows a state where a plurality of image layers to be edited as composite images have already been read out in the image editing mode. The image layer is configured by a graphic or drawing stored in advance in the memory 32, or a subject image obtained by cutting out a part of the captured image.

  As an example of the image layer of the present embodiment, a description will be given using a circular image layer 801, a triangular image layer 802, and a rectangular image layer 803 that are stored in advance in the memory 32.

  The image layer is read out from a plurality of image layers stored in the memory 32 by the user using the cross key 74 and the SET button 75, and the system control unit 50 reads the image processing unit 25 and the like. Through the display on the LCD panel 41. The image layers are superimposed and displayed on the front side, that is, the display surface side in the order of reading. In FIG. 8, since the circular image layer 801 is the foreground, the rectangular image layer 803 is the backmost, and the triangular image layer 802 is superimposed between the two, the image layers are the rectangular image layer 803, the triangular image layer 802, The circular image layers 801 are read in this order. Each image layer is read and then selected by a long tap operation on the touch panel 42. After the selection by a long tap, the superposition order can be changed by a tap operation on the touch panel 42 or the touch pad 44 on the back surface. Further, after selection by a long tap operation, the display position can be moved by a drag operation.

  FIG. 9 is a flowchart showing operations of the display surface touch panel and the back surface touch pad in the image editing mode according to the embodiment of the present invention.

  When the image editing mode is entered by a predetermined operation of the operation unit, the process proceeds to step S301, and the image layer is read. The image layer is read out from a plurality of image layers stored in the memory 32 by the user using the cross key 74 and the SET button 75, and the system control unit 50 reads the image processing unit 25 and the like. Through the display on the LCD panel 41.

  When the image layer is read in step S302, the process proceeds to step S302, and the system control unit 50 determines whether or not an input is made to the display surface touch panel 42 by the user. Input detection on the touch panel 42 detects a user's touch operation by a detection method such as a resistive film method or a capacitance method. When the system control unit 50 detects an input on the touch panel 42 in step S302, the process proceeds to step S303, and gesture detection is performed. In gesture detection, the system control unit 50 detects input from the touch panel 42 and detects whether a tap, double tap, long tap, flick, or drag operation has been performed.

  If gesture detection is performed in step S303, it will progress to step S304 and it will be determined whether long tap operation was performed with respect to the image layer. The long tap detection to the image layer is performed by detecting the position where the system control unit 50 long taps on the touch panel 42 and the display position of each image layer.

  If it is detected in step S304 that the image layer has been tapped long, the process proceeds to step S305, where the long-tapped image layer is selected and displayed. The image layer selection display is a display such as an image layer highlight display or an outline emphasis display, and displays that the image layer long-tapped by the user has been selected.

  When the selection display of the long tapped layer is performed in step S305, the process proceeds to step S306, and it is detected whether or not the touch panel 42 has been tapped.

  When a tap on the touch panel 42 is detected in step S307, the process proceeds to step S308, and a process for moving the selected image layer to the back side by one is performed. The system control unit 50 reads the superposition order of each image layer from the image processing unit 25 and the memory control unit 15 and then changes the superposition order of the selected image layers. For example, in the case where the circular image layer 801 in FIG. 8 is moved by one tap to the back side by the tap operation, the circular image layer 801 moves to the back side of the triangular image layer 802 and the front side of the rectangular image layer 803.

  When the superimposition order of the image layers is moved by the system control unit 50 in step S308, the process proceeds to step S309, and the superimposition display is updated. In the superimposition display update, the superimposition display state of each image layer is updated on the LCD panel 41 based on the superposition order of the image layers replaced by the system control unit 50 in step S308.

  When the superimposed display is updated in step S309, the system control unit 50 stands by so that the next operation is accepted.

  If it is determined in step S306 that the display surface touch panel 42 has not been tapped, the process proceeds to step S311 to detect whether the back surface touch pad 44 has been tapped.

  If a tap on the touch pad 44 is detected in step S311, the process proceeds to step S312 and a process of moving the superposition order of the selected image layers to the front side is performed. The system control unit 50 reads the superposition order of each image layer from the image processing unit 25 and the memory control unit 15 and then changes the superposition order of the selected image layers. For example, when the rectangular image layer 803 in FIG. 8 is moved to the front side by one by the tap operation, the rectangular image layer 803 moves to the front side of the triangular image layer 802 and the back side of the circular image layer 801.

  When the superimposition order of the image layers is moved by the system control unit 50 in step S312, the process proceeds to step S313, and the superimposition display is updated. In the superimposition display update, the superimposition display state of each image layer is updated based on the superimposition order of the image layers replaced by the system control unit 50 in step S312.

  As described in FIG. 8 and FIG. 9, in the image processing mode, in response to an operation of changing the order of the image layers, a tap operation from the display surface touch panel 42 to a rear surface touch pad tap operation from the display surface The operation method is to move from the back side to the front side. In this way, an intuitive operation can be provided to the user by using the touch operation from the display surface and the touch operation from the back surface to change the superposition display order.

41 LCD panel, 42 touch panel, 44 touchpad

Claims (4)

Display means (41) for displaying an image;
Display surface operation means (42) for detecting a touch operation on the display surface of the display means;
It is arranged on the back side of the display means and has a back side operation means (44) for detecting a touch operation,
When an image is superimposed and displayed by the display means, the operation of the image displayed on the display surface side of the superimposed display is assigned to the display surface operation means, and the operation of the image displayed on the back surface side of the superimposed display is performed. Is assigned to the back surface operation means. The image display device includes imaging means (22, 50, 101) for imaging a subject;
A function selection means (42, 70) for selecting a function of the imaging means;
The image display device according to claim 1, wherein the function selection unit is displayed on the superimposed display image so as to be operated by the display surface operation unit. The image display device includes imaging means (22, 50, 101) for imaging a subject;
Focusing means (3, 50, 24) for focusing on the subject;
Focusing frame selection means (44, 70) for selecting a focusing area of the focusing means;
The image display apparatus according to claim 1, wherein the focusing frame selection unit displays a focusing frame on a display image on the back side of the superimposed display according to an operation by the back side operation unit. Display means for displaying an image;
Display surface operation means (42) for detecting a touch operation on the display surface of the display means;
It is arranged on the back side of the display means and has a back side operation means (44) for detecting a touch operation,
When a plurality of image layers are superimposed and displayed by the display means,
Image layer selection means (41, 44) for selecting an image layer;
An image display apparatus comprising: a superposition order changing means (42, 44) for changing a superposition order of image layers in accordance with operations of the display surface operation means and the back surface operation means.