JP2019054368A - Electronic apparatus - Google Patents

Abstract

To achieve high operability of a user when switching a display destination.SOLUTION: The electric apparatus has a display on a first part and under a first state where the processing taken according to a touch operation for a touch panel of a display surface of the first display part is executed, when reception means receives an instruction for switching a destination from the first display part to a second display, controls to start the processing for switching the destination from the first display part to the second display part with the touch panel remaining on and to turn off the touch panel after starting the switching processing.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a technique for switching display destinations.

  In an imaging device such as a digital camera, an imaging device including an electronic viewfinder is widespread apart from a liquid crystal screen disposed on the back surface of the imaging device. Japanese Patent Application Laid-Open No. 2004-228688 describes an imaging apparatus that includes an electronic viewfinder and a rear monitor that can be touched, and switches a display destination of a captured image to either one according to a user's designation. Further, in some devices capable of detecting a touch operation on a display surface, display off and touch detection are linked. Japanese Patent Application Laid-Open No. 2004-228561 describes that when the power supply or backlight of the rear monitor is turned off, the input to the touch panel is invalidated.

JP 2012-203143 A JP 2010-045567 A

In Patent Document 1, since the touch operation on the rear monitor is possible even while the electronic viewfinder is displayed, even when the user does not intend to perform the touch operation, the user touches the electronic viewfinder unintentionally. , There is a possibility that the process will be executed. In the method of Patent Document 2, the touch panel input is invalidated when the display is turned off. However, if the process for turning off the display and the process for invalidating the touch panel are performed, it may take time. .
In view of the above problems, an object of the present invention is to provide an electronic device that can improve user operability when switching display destinations.

  A first aspect of the present invention is a first display unit including a touch detection unit having a function of receiving a touch operation, or a reception unit that receives an instruction to switch an image display destination to either the second display unit; Changing means for changing a display state of the first display means from a first state in which the image is displayed to a second state in which the image is not displayed; and a display state of the first display means is the first state. In the second state, and when the transition to the predetermined operation mode in which the touch detection unit can accept a touch operation is set to be effective, the first display unit to the second operation mode When the receiving unit receives an instruction to switch the display destination of the image to the display unit, the display unit shifts to the predetermined operation mode, switches the display destination of the image to the second display unit, and enters the predetermined operation mode. No migration If the receiving unit receives an instruction to switch the display destination of the image from the first display unit to the second display unit, the first display unit is changed by the changing unit. And a mode transition unit that switches the display destination of the image to the second display unit, wherein the display state is set to the second state, the touch detection unit does not accept a touch operation. Provide electronic equipment.

  ADVANTAGE OF THE INVENTION According to this invention, the operativity of the user at the time of switching a display destination can be improved.

It is a block diagram which shows the structural example of a digital camera. It is an external view of a digital camera. It is a figure which shows the example of the flow of a switching process of the display destination of an image. It is a figure which shows the example of the flow of a process which switches LCD to black self-propelled mode. It is a figure which shows the example of the flow of a process which switches LCD to an OFF state. It is a figure which shows the mode of the display in a present Example and a prior art example.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In each drawing, the same components are denoted by the same reference numerals in principle, and redundant description is omitted. Further, numerical values and the like exemplified for embodying the description are not limited to these unless otherwise specified.
Further, the present invention is not limited to the following examples, and can be appropriately changed without departing from the gist thereof. For example, each configuration of the following embodiments may be appropriately modified or changed depending on the configuration of the apparatus to which the present invention is applied and various conditions.

<Example 1>
(Configuration example of digital camera)
FIG. 1 is a block diagram illustrating a configuration example of a digital camera 100 (electronic device, imaging device). FIG. 2 is an external view of the digital camera 100.
In FIG. 1, a photographing lens 104 is a lens group including a zoom lens and a focus lens. Here, only a single lens is shown for simplicity. The shutter 105 is a shutter having an aperture function. The imaging unit 106 is an imaging element configured with a CCD, a CMOS element, or the like that converts an optical image into an electrical signal. The A / D converter 107 converts the analog signal output from the imaging unit 106 into a digital signal.
The barrier 103 covers the imaging system including the imaging lens 104 of the digital camera 100, thereby preventing the imaging system including the imaging lens 104, the shutter 105, and the imaging unit 106 from becoming dirty or damaged.

The image processing unit 102 performs resizing processing and color conversion processing such as predetermined pixel interpolation and reduction on the data from the A / D converter 107 or the data from the memory control unit 108. The image processing unit 102 performs predetermined calculation processing using the captured image data, and the system control unit 101 performs exposure control and distance measurement control based on the result of the calculation processing. Thereby, AF (auto focus) processing, AE (auto exposure) processing, EF (flash pre-flash) processing, and AWB (auto white balance) processing of the TTL (through-the-lens) method are performed.
Output data from the A / D converter 107 is directly written into the memory 109 via the image processing unit 102 and the memory control unit 108 or only through the memory control unit 108. In addition to the image data, the memory 109 stores moving image data obtained from the imaging unit 106 and image data such as icons displayed on the display surface of the first display unit 111 (first display unit). .
The memory 109 also serves as an image display memory (video memory). The D / A converter 110 converts the image data stored in the memory 109 into an analog signal and transmits the analog signal to the first display unit 111 on the rear surface. In the first display unit 111, an image is displayed based on the analog signal.

The first display unit 111 performs display according to an analog signal from the D / A converter 110 on a display such as an LCD. A digital signal once A / D converted by the A / D converter 107 and stored in the memory 109 is converted into an analog signal by the D / A converter 110, sequentially transferred to the first display unit 111, and displayed. Is displayed.
The non-volatile memory 114 is an electrically erasable / recordable memory such as EEPRO.
M or the like is used. The nonvolatile memory 114 stores constants, programs, and the like for operating the system control unit 101. Here, the program is a program for executing various flowcharts described later in the present embodiment.

The system control unit 101 includes a processor that controls the entire digital camera 100. The system control unit 101 implements each process of this embodiment described later by executing the program recorded in the nonvolatile memory 114 described above. In the system memory 113, constants and variables for operation of the system control unit 101, programs read from the nonvolatile memory 114, and the like are expanded. For example, a RAM (Ramdom Access Memory) is used as the system memory 113.
The system control unit 101 also performs display control by controlling the memory 109, the D / A converter 110, the first display unit 111, and the like. The system timer 112 is a time measuring unit that measures the time used for various controls and the time of a built-in clock.

A shutter switch 115, a mode switching dial 118, and a power button 119 are operation means for inputting various operation instructions to the system control unit 101.
The mode switching dial 118 is used when performing a switching operation for switching the operation mode of the system control unit 101 to any one of a still image recording mode, a moving image recording mode, a reproduction mode, and the like. Modes included in the still image recording mode include an auto shooting mode, an auto scene discrimination mode, a manual mode, various scene modes for shooting settings for each shooting scene, a program AE mode, a custom mode, and the like. The mode switching dial 118 can be directly switched to any of these modes included in the still image shooting mode. Alternatively, after switching to the still image shooting mode once with the mode switching dial 118, it may be switched to one of these modes included in the still image shooting mode using another operation member. Also, the moving image shooting mode may include a plurality of modes.

The first shutter switch 116 is turned on when the shutter switch 115 provided in the digital camera 100 is being operated, so-called half-press (shooting preparation instruction), and the first shutter switch signal SW1 is generated. The first shutter switch signal SW1 starts operations such as AF (auto focus) processing, AE (auto exposure) processing, AWB (auto white balance) processing, and EF (flash pre-emission) processing.
The second shutter switch 117 is turned on when the operation of the shutter switch 115 is completed, so-called full press (shooting instruction), and the second shutter switch signal SW2 is generated. In response to the second shutter switch signal SW2, the system control unit 101 starts a series of shooting processing operations from reading a signal from the imaging unit 106 to writing image data into the recording medium 124.

The power control unit 121 includes a battery detection circuit, a DC-DC converter, a switch circuit that switches a block to be energized, and the like, and detects the state of the power button 119, whether or not a battery is installed, the type of battery, and the remaining battery level. . The power supply control unit 121 controls the DC-DC converter based on the detection result and an instruction from the system control unit 101, and supplies a necessary voltage to each unit including the recording medium 124 for a necessary period.
The power supply unit 122 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. In this embodiment, a description will be given of a case where a secondary battery is used for the power supply unit 122 (hereinafter referred to as a battery).
The recording medium I / F 123 is an interface with a recording medium 124 such as a memory card or a hard disk. The recording medium 124 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.
The external device I / F 125 is connected to the external device 126 by a wireless or wired cable, and transmits and receives video signals and audio signals. The external device I / F 125 is a wireless LAN (Local
(Area Network) and the Internet can also be connected. External device I / F12
5 can transmit an image (including a through image) captured by the image capturing unit 106 and an image recorded on the recording medium 124, and can receive image data and other various types of information from the external device 126. .

The accessory shoe 127 (connection means) mechanically and electrically attaches an external accessory, and an external electronic viewfinder 128 (display device), an external strobe, or the like can be used. The data video signal for image display stored in the memory 109 is transmitted to the external electronic viewfinder 128 through the accessory shoe 127, and is transmitted to the second display unit 130 (second display unit) through the D / A converter 129. Can be displayed.
The external electronic viewfinder 128 is provided with an eye sensor 131 and can detect the approach of the face. The system control unit 101 determines that the user is looking into the external electronic viewfinder when the approach of the face is detected, and automatically switches the image display destination to the external electronic viewfinder 128. The external electronic viewfinder 128 is also provided with a display destination switching button 132, and the user can manually switch the display destination. Note that the external electronic viewfinder 128 may include only one of the eyepiece sensor 131 and the display destination switching button 132.

Each operation member of the operation unit 120 is appropriately assigned a function for each scene by selecting and operating various function icons displayed on the first display unit 111, 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 the MENU button 201 shown in FIG. 2 is pressed, various setting menu screens are displayed on the first display unit 111.
The user makes various settings intuitively using the menu screen displayed on the first display unit 111 and the cross button 202 and the SET button 203 having buttons in the four directions of up, down, left, and right shown in FIG. Can do. The SET button 203 also serves as a FUNC (function) button. When the FUNC button is pressed during shooting standby, a setting screen related to shooting is superimposed on the live view display on the first display unit 111 or the second display unit 130. Can be displayed. FUNC is a mode for changing a setting item desired by the user from among a plurality of setting items.
The touch panel 120a is provided in the first display unit 111 and detects a touch operation by the user. Various settings can be made using the touch panel 120 a as with the cross button 202 and the SET button 203.

A controller wheel 204 in FIG. 2 is a rotatable operation member included in the operation unit 120, and is used when a selection item is designated together with a direction button. When the controller wheel 204 is rotated, an electrical pulse signal is generated according to the operation amount, and the system control unit 101 controls each part of the digital camera 100 based on the pulse signal. From this pulse signal, it is possible to determine the angle at which the controller wheel 204 is rotated, how many rotations, and the like. The controller wheel 204 may be any operation member that can detect a rotation operation. For example, the controller wheel 204 itself may be a dial operation member that generates a pulse signal by rotating according to a user's rotation operation. Further, an operation member made of a touch sensor may detect the rotation operation of the user's finger on the controller wheel 204 without rotating the controller wheel 204 itself (so-called touch wheel).
The information display switching button 205 in FIG. 2 is a button for switching a plurality of information display modes displayed on the first display unit 111 or the second display unit 130.

As shown in FIG. 2, the power supply unit 122 and the recording medium 124 can be inserted into the digital camera 100 from the bottom of the digital camera 100 and can be covered with a cover 206 that can be opened and closed. Furthermore, a connector 207 for wired connection with an external device can be attached to the side surface.
In the description of the present embodiment, an external electronic viewfinder is used. However, an electronic viewfinder incorporated in the camera body may be used.

  The operation unit 120 includes a touch panel 120 a that can detect contact with the first display unit 111. The touch panel 120a and the first display unit 111 can be configured integrally. Input coordinates on the touch panel 120a and display coordinates on the first display unit 111 are associated with each other. Thereby, it is possible to configure a GUI (graphical user interface) as if the user can directly operate the screen displayed on the first display unit 111.

The system control unit 101 can detect the following operations (1) to (5) or the state of the touch panel 120a.
(1) A finger or pen that has not touched the touch panel newly touches the touch panel. That is, touching is started (hereinafter referred to as touch-down).
(2) Move while touching the touch panel with a finger or a pen (hereinafter referred to as Touch-Move).
(3) Release the finger or pen that touched the touch panel. That is, the touch is terminated (hereinafter referred to as touch-up).
(4) The touch panel is touched with a finger or a pen (hereinafter referred to as touch-on).
(5) No touch on the touch panel (hereinafter referred to as touch-off)
)).
Touchdown indicates an operation that starts touching the touch panel 120a, while touch-on indicates a state in which the touch panel 120a is touched. Touch-up indicates an operation in which a finger or a pen is released from the touch panel 120a, while touch-off indicates a state where the touch panel 120a is not touched.

When touchdown is detected, it is also detected that touch-on is performed at the same time. After touch-down, unless touch-up is detected, normally touch-on continues to be detected. The touch move is detected in a state where touch-on is detected. Even if the touch-on is detected, the touch move is not detected unless the touch position is moved. Further, after it is detected that all fingers or pens that have been touched are touched up, the touch is turned off.
These operations / states and position coordinates where a finger or pen touches the touch panel are notified to the system control unit 101 through the internal bus, and the system control unit 101 determines what kind of information is displayed on the touch panel based on the notified information. Determine whether the operation has been performed.
For example, for the touch move, the system control unit 101 can also determine the movement direction of the finger or pen moving on the touch panel for each vertical component / horizontal component on the touch panel based on the change of the position coordinates.

Further, it is assumed that a stroke is drawn when touch-up is performed on the touch panel 120a through a certain touch 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 120a and releasing it. That is, the flick is an operation of quickly tracing the touch panel 120a with a finger.
Further, the system control unit 101 determines that a flick has been performed when it is detected that a touch move is performed at a predetermined speed or more over a predetermined distance and a touch-up is detected as it is. In addition, the system control unit 101 determines that the drag has been performed when it is detected that the touch move is performed at a predetermined distance or more at a speed lower than the predetermined speed.
In addition, a touch operation that simultaneously touches a plurality of locations (for example, two points) on the touch panel 120a to bring the touch positions closer to each other is referred to as pinch-in, and a touch operation that moves the touch positions away from each other is referred to as pinch-out. Pinch-out and pinch-in are collectively referred to as pinch operation (or simply pinch).

  Note that the touch panel 120a may use any of various types of touch panels 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 an optical sensor method. Depending on the type of touch panel, there is a method for detecting that there is a touch due to contact with the touch panel, and a method for detecting that there is a touch because there is a finger or pen approaching the touch panel, but either method may be used .

When the system control unit 101 receives an instruction to switch the display destination from the user, the system control unit 101 sets the first display unit 111 on which the image is displayed to a black display state, and then performs a second display different from the first display unit 111. The display destination of the image is switched to the unit 130. Then, the system control unit 101 turns off the touch panel after the display destination is switched.
Specifically, the system control unit 101 performs processing as a reception unit, a switching unit, and a control unit described below.
The system control unit 101 receives an instruction to switch the image display destination from the first display unit 111 of the rear liquid crystal panel (LCD) to the second display unit 130 of the electronic viewfinder (EVF) as a reception unit. Hereinafter, the case where the image display destination is the rear liquid crystal panel is referred to as an LCD mode, and the case where the image display destination is an electronic viewfinder is referred to as an EVF mode.
Further, when the system control unit 101 receives the above instruction while the first display unit 111 is displaying and the touch panel 120a is on (first state), the system control unit 101 displays the display destination while the touch panel 120a remains on as a control unit. The process of switching is started. Furthermore, the system control unit 101 switches the touch panel 120a from on to off as a switching unit after starting the switching process. Thereby, while shortening the time at the time of switching a display destination, power consumption can be reduced.
In addition, the system control unit 101 receives a setting (predetermined setting) as to whether or not to perform processing (predetermined processing) in response to a touch operation on the touch panel 120a when the second display unit 130 is displayed. It also functions as a setting means. Then, the system control unit 101 does not perform control to turn off the touch panel 120a when the setting is made.
When the system control unit 101 receives an instruction to switch the display destination in the first state, the system control unit 101 hides the item displayed on the first display unit 111 and then displays the item on the second display unit 130. Control to do. At this time, the system control unit 101 may control the first display unit 111 to display black.
In addition, when the touch panel 120a is switched off, the system control unit 101 performs control so as not to execute processing according to the touch operation even when the touch operation is performed before the touch panel 120a is turned off. Also good. Thereby, an erroneous operation can be suppressed.
Further, the system control unit 101 may perform control so that the power of the first display unit 111 is turned off after the display is switched from the first display unit 111 to the second display unit 130. Thereby, power consumption can be reduced.
The second display unit 130 may be an in-finder display unit that displays a photographed image on the finder.

Further, the system control unit 101 may perform processing described below.
When the touch panel 120a is in a state in which a touch operation can be received and a predetermined item is displayed on the first display unit 111, the system control unit 101 transfers an image to the second display unit 130. It is assumed that an instruction to switch the display destination is received. In the first state, for example, a live view image is displayed on the first display unit 111. In such a case,
The system control unit 101 performs control so as not to turn off a state in which a touch operation on the touch panel 120a can be accepted, whether in a predetermined operation mode or not in a predetermined operation mode. The predetermined operation mode is a mode in which the touch panel 120a receives a process corresponding to the touch operation while the second display unit 130 is displayed, and the black self-running mode also corresponds to the predetermined operation mode. When the predetermined operation mode is not set, the system control unit 101 does not accept a touch operation on the touch panel 120a while the second display unit 130 is displayed.
Furthermore, the system control unit 101 performs control so that the display is switched to the second display unit 130 after the second state in which the predetermined item is not displayed on the first display unit 111. In the second state, for example, a black image is displayed on the first display unit 111. Thereby, regardless of whether or not a predetermined operation mode is set, it is possible to improve the user operability when switching the display destination.
Hereinafter, a specific example related to the processing of the system control unit 101 will be described.

(Flow of display destination switching process)
FIG. 3 is a diagram illustrating an example of the flow of processing for switching the display destination of an image. The system control unit 101 performs the following processes by expanding and executing a predetermined program in the system memory 113. A specific processing procedure of the system control unit 101 will be described with reference to FIG.
In step S301, the system control unit 101 displays a live view image on the first display unit 111 (denoted as LCD in FIG. 3).
In step S302, the system control unit 101 determines whether an instruction to switch the image display destination is received from the first display unit 111 to the second display unit 130 (denoted as EVF in FIG. 3), and the instruction is received. The process proceeds to step S303. For example, the system control unit 101 determines that an instruction to switch the display is accepted when the approach of the face is detected by the eye sensor 131 or when the display destination switching button 132 is pressed. On the other hand, when the instruction to switch the display destination is not accepted, the process proceeds to step S320.
In step S303, the system control unit 101 determines whether to switch the display destination from the first display unit 111 to the second display unit 130. When the display destination is switched, the system control unit 101 proceeds to the process of step S304. On the other hand, when switching a display destination from the 2nd display part 130 to the 1st display part 111, it transfers to the process of step S310.
In step S304, the system control unit 101 switches the first display unit 111 (LCD) from the on state to the black self-running mode. The on state indicates a state in which a live view image is displayed on the first display unit 111. By switching from the on state to the black free-running mode, nothing is displayed on the first display unit 111, but the touch panel 120a is in a state where a touch can be detected. The process flow for switching to the black free-running mode will be described later.
In step S <b> 305, the system control unit 101 switches the display destination of the live view image to the second display unit 130. Therefore, the live view image is displayed on the second display unit 130 before the process of step S308 described later in which the first display unit 111 is turned off (or in the sleep state).
In addition to the shooting mode, there are a playback mode and a menu mode. When the playback mode is selected, the system control unit 101 displays the image displayed on the first display unit 111 when step S304 ends. You may display on the 2nd display part 130. FIG.

In step S306, the system control unit 101 determines whether the touch pad setting is valid. The touch pad setting indicates a setting as to whether or not the touch panel 120a accepts a touch operation when being displayed on the EVF. The touch pad setting can be appropriately changed as will be described later. When the touch pad setting is enabled, when switching from the first display unit 111 to the second display unit 130, the first display unit 111 is in a black display state and nothing is displayed, but the touch panel 120a can accept a touch operation. It becomes a state. By enabling the touch pad setting, for example, an item such as an AF frame displayed on the second display unit 130 is selected by performing a touch move on the touch panel 120a while looking into the second display unit 130. Can be moved. In addition, when a menu screen or selectable items are displayed on the second display unit 130, a desired item can be selected by moving the cursor with a touch move. As described above, when the touch pad setting is enabled, the user can give various instructions by touching the touch panel 120a while looking into the second display unit 130. In addition to the movement of the AF frame, the system control unit 101 may accept other settings such as an aperture value and a shutter speed on the touch panel 120a.

If the touch pad setting is valid in step S306, the process proceeds to step S307. On the other hand, when the touch pad setting is invalid, the process proceeds to step S308. Even when the touch pad setting is invalid, the user can perform operations such as moving the AF frame using the cross button 202 and the SET button 203.
In step S307, the system control unit 101 determines whether the shooting mode is set. If the shooting mode is set, shooting is possible, and the process returns to step S302. If it is a mode other than the shooting mode, the process proceeds to step S308. In addition to the shooting mode, there are modes such as a playback mode and a menu mode. In the playback mode, since the operation is relatively simple and it is not necessary to use the touch panel 120a, the process of step S308 for turning off the LCD is performed. On the other hand, in the case of the menu mode, since the operation is relatively complicated such as selecting one setting item from a large number of setting items, it is determined Yes in step S307 so that the touch panel 120a can be used. Also good.
Even in the playback mode, when operating using the touch panel 120a, the system control unit 101 may determine Yes in step S307.

In step S308, the system control unit 101 switches the first display unit 111 and the touch panel 120a to an off state. Here, the off state is a state where the supply of power is stopped (stopped state). Further, by switching to the off state, power consumption can be reduced as compared with the black free-running mode. Details of the processing in step S308 will be described later.
As described above, when the touch pad setting is invalid, the live view image is displayed on the second display unit 130 in step S305 even before the processing in step S308 is completed.

  Note that even after the mode is switched to the black self-running mode in step S304, the touch panel 120a is activated until the processing in step S308 is completed. When the touch pad setting is invalid, the system control unit 101 may invalidate the touch operation on the touch panel 120a. Thereby, the erroneous operation of the touch panel 120a can be suppressed.

If no instruction to switch the image display destination is received from the first display unit 111 to the second display unit 130 in step S302, the process proceeds to step S320.
In step S320, the system control unit 101 determines whether or not there is an instruction to perform touch pad setting. If there is an instruction, the system control unit 101 proceeds to processing in step S321, and touch pad setting is turned on / off according to a user operation. Switch. On the other hand, if there is no instruction to perform touchpad settings, the process proceeds to step S322.
In step S322, the system control unit 101 determines whether there is an instruction to change the mode. If there is an instruction, the system control unit 101 proceeds to the process of step S323 and changes to the designated mode. For example, there are a playback mode, a menu mode, and a shooting mode, and any one of the modes can be designated.
In step S324, the system control unit 101 determines whether or not there is an instruction to turn off the power. If there is an instruction, the process of FIG. On the other hand, if there is no instruction to turn off the power, the process returns to step S302.

In step S303, when the display destination is switched from the second display unit 130 to the first display unit 111, the process proceeds to step S310. In step S310, the system control unit 101 turns off the display on the second display unit 130, and turns on the display on the first display unit 111 in step S311. Thereby, the display destination of the image is switched from the second display unit 130 to the first display unit 111.
In step S312, the system control unit 101 determines whether or not the touch panel 120a is on. If the touch panel 120a is on, such as when the touch pad setting is valid, the process returns to step S302. On the other hand, when the touch panel 120a is in the off state, the process proceeds to step S313, the touch panel 120a is switched to the on state, and then the process returns to step S302.

FIG. 4 is a diagram showing an example of a flow of processing for switching the LCD to the black self-running mode. The process in FIG. 4 corresponds to the process in step S304 in FIG.
In step S401, the system control unit 101 switches the first display unit 111 to black display. By switching to black display, the first display unit 111 appears to be extinguished, and the user can recognize that the display destination of the image has been switched. Further, by switching to the black display, the light from the first display unit 111 can be prevented from entering the second display unit 130. In addition, it is not limited to displaying a black image on the 1st display part 111, You may display the image of another color.
In step S402, the system control unit 101 turns off the backlight (not shown) of the first display unit 111. Thereby, power consumption can be reduced.
In step S403, the system control unit 101 temporarily switches the touch panel 120a to the off state. The reason why the touch panel 120a is turned off in step S403 is to prepare for switching to the black free-running mode.

In step S404, the system control unit 101 switches the internal state of the first display unit 111 to the black self-running mode.
In step S405, the system control unit 101 stops transmission of video signal data.
In step S406, the system control unit 101 stops the video signal clock. Steps S405 and S406 prevent the video signal from being input to the first display unit 111.
In step S407, the system control unit 101 switches the touch panel 120a to the on state again. Thereby, the touch panel 120a can detect a touch operation, and the touch panel 120a functions as a touch pad. Note that the touch panel 120a is switched to the on state again in step S407. However, when the touch pad setting is invalid (the black self-running mode is invalid), the touch panel 120a may remain off.
Note that the wait time generated between the processes in the black self-running switching process of FIG. 4 is relatively short, about 24 ms in total.

FIG. 5 is a diagram illustrating an example of a flow of processing for switching the LCD to an off state. The process in FIG. 5 corresponds to the process in step S308 in FIG.
In step S501, the system control unit 101 switches the touch panel 120a to an off state. As a result, the touch panel 120a enters a state where no touch operation is detected.
In step S502, the system control unit 101 switches the first display unit 111 to the sleep state. Here, the sleep state is a state where preparation for stopping the first display unit 111 by turning off the power supply is completed, and is a state where the power consumption is smaller than that in the black self-running mode.
In step S503, the system control unit 101 stops the supply of power to the first display unit 111, and puts the first display unit 111 into a stopped state.
In step S504, the system control unit 101 resets the first display unit 111. Thereby, the 1st display part 111 will be in an OFF state. By setting the first display portion to the off state, it is possible to reduce the power consumption compared to the black self-running mode.

  Further, in the flow of FIG. 5, a relatively long wait time of about 77 ms in total occurs between the processes. This is to prevent the processes from interfering with each other particularly between steps S501 and S502 and between S502 and S503.

(effect)
In some cases, such as when an external electronic viewfinder is attached to a digital camera, a live view image can be displayed only on either the electronic viewfinder (EVF) or the LCD on the back of the digital camera. Therefore, when switching the display to either EVF or LCD, it is necessary to stop the display of one and then switch the display to the other. Therefore, conventionally, when the display destination is switched from the LCD to the EVF, the process of switching the display destination to the EVF is started after the termination process for stopping the power supply to the LCD is performed. In addition to the process of stopping the LCD, the termination process includes a plurality of processes such as a process of stopping the touch panel provided on the LCD, and a wait time for preventing each process from interfering with each other. Occur. Therefore, it takes time until the display destination is switched.
However, in the present embodiment, the display destination is switched before the end process is completed (the touch panel is in an on state), so that it is possible to switch to EVF earlier than in the past. That is, in this embodiment, the live view image is displayed on the EVF without interposing the LCD termination process. Thereby, in the present embodiment, the switching of the display destination can be speeded up and the operability for the user can be improved.

The effect of a present Example is demonstrated using a specific example. 6A to 6E show display states in the present embodiment and the conventional example. 6A shows the live view image displayed on the LCD, and FIG. 6B shows the state of the black self-running mode (the LCD is not turned off but the live view image is not displayed, the touch panel is turned on). Show. In FIG. 6B, both the LCD and the touch panel are on, but the external appearance of the LCD appears to be off. Further, FIG. 6C shows a state in which the LV image is displayed on the EVF, and shows a state in which the end process is progressing internally. FIG. 6D shows a state in which the LCD is off (power supply is stopped). Therefore, when the display is switched from the LCD to the EVF, the display is switched as shown in FIG. 6C via FIGS. 6A to 6B. In addition, an end process is internally performed in the state of FIG. 6C, and the LCD is turned off in FIG. 6D. Therefore, the display is switched to EVF at the time of FIG. 6C.
On the other hand, in the prior art, after FIG. 6A, an end process (LCD and touch panel are both off) is performed as shown in FIG. 6E, and after the end process is completed, a live view image is displayed on the EVF, and FIG. Transition to the state.

  As described above, in this embodiment, the display is switched to the electronic viewfinder after the LCD is temporarily shifted to the black free-running mode regardless of whether the touch pad setting is valid as described above. . At this point, the user can take a picture using the electronic viewfinder. Then, after the display is switched, the LCD is turned off. That is, the user can start shooting with the electronic viewfinder without waiting for the process of turning off the LCD to be completed.

In addition, when the touch pad setting is set to invalid, the display is switched to the electronic viewfinder and then the LCD shifts to the off state. Therefore, the power consumption is compared to when the touch pad setting is set to valid. Can be suppressed.
In the above embodiment, it has been described that the first display unit 111 is finally stopped. However, the present invention is not limited to this, and the first display unit 111 may be finally set to a sleep state. Thereby, when switching a display to a 1st display part again, switching time can be shortened rather than the case where it is set as an OFF state.

In the above-described embodiment, it has been described that the black image is displayed on the first display unit in the black self-running mode, but an image of another color may be used. In the above embodiment, the second display unit 130 is described as an external electronic viewfinder. However, the digital camera 100 may include a built-in electronic viewfinder.
Note that the various controls described as being performed by the system control unit 101 may be performed by a single piece of hardware, or the entire apparatus may be controlled by a plurality of pieces of hardware sharing the processing. .
Although the present invention has been described in detail based on the preferred embodiments thereof, the present invention is not limited to these specific embodiments, and various embodiments within a scope not departing from the gist of the embodiments are also described. Included in the invention.
Further, in the above-described embodiments, the case where the electronic apparatus according to the present invention is applied to a digital camera has been described as an example. However, the present invention is not limited to this example, and any apparatus having a function of switching display on a plurality of screens. Applicable. In other words, the present embodiment can also be applied to a personal computer, a PDA, a mobile phone terminal, a portable image viewer, a printer device including a display, a digital photo frame, a music player, and the like. Furthermore, the present invention can also be applied to home appliances and in-vehicle devices including game machines, electronic book readers, tablet terminals, smartphones, projection devices, and displays.

(Other examples)
The present invention supplies a program that realizes one or more functions of the above-described embodiments to a system or apparatus via a network or a storage medium, and one or more processors in a computer of the system or apparatus read and execute the program This process can be realized. It can also be realized by a circuit (for example, ASIC) that realizes one or more functions.

  100: digital camera 101: system control unit 111: first display unit 120a: touch panel 130: second display unit 131: eye sensor

Claims (14)

Receiving means for receiving an instruction to switch a display destination from a first display unit having a touch panel capable of receiving a touch operation on a display surface to a second display unit different from the first display unit;
Switching means for switching on and off the touch panel on the display surface of the first display unit;
In the first state in which the display on the first display unit is performed and the corresponding process is executed in response to a touch operation on the touch panel on the display surface of the first display unit, When the receiving unit receives an instruction to switch the display destination from the display unit to the second display unit, the display destination is changed from the first display unit to the second display unit with the touch panel turned on. An electronic apparatus comprising: a control unit that starts a switching process and controls the switching unit to turn off the touch panel after the switching process starts. A setting unit capable of setting a predetermined setting in which a predetermined process is executed in response to a touch operation on the touch panel when the second display unit is displayed;
The electronic apparatus according to claim 1, wherein the control unit performs control so as not to perform control to turn off the touch panel when the predetermined setting is set. When the accepting unit accepts an instruction to switch a display destination from the first display unit to the second display unit in the first state,
2. The control unit according to claim 1, wherein after the item displayed on the first display unit is hidden, the control unit displays the item on the second display unit. 2. The electronic device according to 2. When the accepting unit accepts an instruction to switch a display destination from the first display unit to the second display unit in the first state,
The electronic device according to claim 1, wherein the control unit controls the first display unit to display black.   When the touch panel is on, the control means performs a process corresponding to the touch according to the touch operation on the touch panel, and when the touch panel is switched off, the touch operation is performed on the touch panel. 5. The electronic device according to claim 1, wherein the electronic device is controlled so as not to execute a process corresponding to the touch operation even if the touch is performed. In the first state, when the receiving unit receives an instruction to switch a display destination from the first display unit to the second display unit,
2. The control unit according to claim 1, wherein after the display is switched from the first display unit to the second display unit, the power of the first display unit is turned off. The electronic device of any one of -5.   The electronic device according to claim 1, wherein the second display unit is an in-finder display unit that displays a captured image on the finder.   The electronic apparatus according to claim 2, wherein the predetermined process is a process of selecting or moving an item displayed on the second display unit according to an operation on the touch panel.   The electronic apparatus according to claim 1, further comprising an imaging unit. Receiving means for receiving an instruction to switch display from the first display unit having a touch panel capable of receiving a touch operation to the second display unit;
Changing means for changing to a second state not displayed from a first state where a predetermined item is displayed on the first display unit,
Setting means for setting to a predetermined operation mode for accepting processing according to a touch operation on the first display unit during display on the second display unit;
The touch panel of the first display unit is in a state where it can accept a touch operation, and when it is in the first state, an instruction to switch from the first display unit to the second display unit is given. When,
Even in the predetermined operation mode or not in the predetermined operation mode, the second display unit is set after the second state without turning off the state in which the touch operation to the touch panel can be accepted. And an electronic device having control means for controlling the display to be switched. Display on the first display unit having a touch panel capable of accepting a touch operation on the display surface, and further processing corresponding to the touch operation on the touch panel on the display surface of the first display unit is executed Receiving an instruction to switch the display destination from the first display unit to a second display unit different from the first display unit,
Starting the process of switching the display destination from the first display unit to the second display unit with the touch panel turned on, and controlling the touch panel to be turned off after the switching process is started; And a method for controlling an electronic device. When the touch panel of the first display unit is in a state in which a touch operation can be received and a predetermined item is displayed on the first display unit, Receiving an instruction to switch to the second display unit;
When the instruction is received, whether in a predetermined operation mode for receiving a process according to a touch operation on the first display unit during display of the second display unit or not in the predetermined operation mode, Without switching off the state in which the touch operation to the touch panel can be accepted, the display is switched to the second display unit after the second display unit in which the predetermined item is not displayed on the first display unit. And a step of controlling the electronic device.   The program for functioning a computer as each means of the electronic device as described in any one of Claims 1-10.   A computer-readable storage medium storing a program for causing a computer to function as each unit of the electronic device according to any one of claims 1 to 10.