JP2019124805A - Electronic apparatus, method for controlling the same, program, and recording media - Google Patents

Abstract

To more suitably control switching between lighting and coloring of display means.SOLUTION: With an electronic apparatus, in a first coloring state where display means displays a display object in second color and background of the display object in first color and in a state where lighting means is turned off, the lighting means is turned on in response to operation of operation means without changing a coloring state in the display means. Thereafter, in response to continuation of the operation to the operation means for a prescribed time, control is performed such that the display object is displayed in the first color while the lighting means is kept lighting, and the background of the display object is changed into the second coloring state displayed by the second color.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an electronic device, a control method thereof, a program and a recording medium.

Conventionally, in order to improve the visibility of a display device in a dark place, not only lighting of a light that illuminates the display device, but also control for changing the display itself of the display device is known.
Patent Document 1 discloses a liquid crystal display device that performs control so that negative display is performed when the backlight illumination of the display device is turned on and positive display is performed when the light is turned off. Patent Document 2 discloses a display device that controls to change display data when the backlight is on and off.

Japanese Patent Application Laid-Open No. 63-43123 JP, 2008-26546, A

However, in the prior art disclosed in the above-mentioned patent documents, when the backlight illumination is turned on and back and turned to white back display, the display is too bright for the eyes of the dark-accommodated user and the visibility is rather good. There is a concern that it may be worse or the dark adaptation may be broken.
An object of the present invention is to control switching of illumination of a display means and a color scheme more suitably in view of the above-mentioned subject.

  An electronic device according to the present invention comprises a display means for displaying a display target with either a first color or a second color brighter than the first color, an illumination means for illuminating the display means, and the illumination means Operation means for instructing lighting of the light source, and the illumination in the first color arrangement state in which the display means displays the display object in the second color and the background of the display object is displayed in the first color, and In the state where the means is turned off, the illumination means is turned on without changing the color arrangement state in the display means in response to the operation of the operation means, and thereafter, the operation to the operation means is performed for a predetermined time In the second color arrangement state in which the display target is displayed in the first color and the background of the display target is displayed in the second color while the lighting means is kept lit in response to the continuation. Control means for controlling to change The features.

  According to the present invention, it is possible to more suitably control the switching of the illumination and the color arrangement of the display means.

It is a figure which shows an example of an external appearance structure of a digital camera. It is a figure which shows an example of an internal structure of a digital camera. It is a figure which shows an example of the display type in a finder outside display part. It is a flow chart which shows an example of display control of a 1st embodiment. It is a flow chart which shows an example of display control of a 2nd embodiment.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
First Embodiment
In the present embodiment, a case where the electronic device is the digital camera 100 (hereinafter referred to as the camera 100) will be described.
FIGS. 1A and 1B are diagrams showing an example of an external view of the camera 100. FIG. FIG. 1A is a front perspective view of the camera 100, and FIG. 1B is a rear perspective view of the camera 100.
The camera 100 includes a shutter button 101, a main electronic dial 102, a mode switch 103, an outside finder display unit 104, and the like on the top surface. A shutter button 101 is an operation unit for instructing a shooting preparation or shooting. The shutter button 101 corresponds to an example of the photographing instruction unit. The main electronic dial 102 is a rotary operation unit for changing set values such as the shutter speed and the aperture. The mode switching switch 103 is an operation unit for switching various modes. The mode switching switch 103 is switched to a still image shooting mode, a moving image shooting mode, and the like. An external finder display unit 104 displays setting values such as shutter speed, aperture value, and ISO sensitivity. The outside finder display unit 104 is, for example, a liquid crystal display panel, and corresponds to an example of a display unit.

The camera 100 also has a display unit 105, a power switch 106, a sub electronic dial 107, an arrow key 108, a SET button 109, and a live view button 110 on the back. The camera 100 further includes an enlargement button 111, a reduction button 112, a reproduction button 113, a finder 114, and the like.
The display unit 105 displays an image and various information. Further, the display unit 105 displays a live view image, displays a quick review image after shooting a still image, and displays an image during moving image recording. The display unit 105 is an example of a second display unit. The power switch 106 is an operation unit that switches the power of the camera 100 on and off. The sub electronic dial 107 is a rotary operation unit for moving the selection frame, sending an image, and the like. The cross key 108 is a key (four-way key) that can be pressed vertically and horizontally, and can be operated according to the pressed position. The SET button 109 is an operation unit that is mainly pressed to determine a selection item.

  The live view button 110 is an operation unit for switching between the finder shooting mode and the live view shooting mode in the still image shooting mode, and instructing start and stop of moving image shooting (recording) in the moving image shooting mode. The enlargement button 111 is an operation unit for changing the enlargement ratio in the enlargement mode ON, OFF, and the enlargement mode in the display of the live view image. The enlargement button 111 is used to increase the enlargement ratio of the reproduced image in the reproduction mode. The reduction button 112 is an operation unit for reducing the enlargement ratio of the enlarged reproduced image and reducing the displayed image. The playback button 113 is a button for switching between the shooting mode and the playback mode. By pressing the playback button 113 during the still image shooting mode or the moving image shooting mode, the mode is switched to the playback mode, and the latest image among the images recorded on the recording medium is displayed on the display unit 105. The finder 114 is a gaze-type finder for confirming the focus and the composition of the optical image of the subject by observing a focusing screen described later.

Further, the camera 100 is provided with a grip 115 and a lid 116 on the right side, and a terminal cover 117 on the left side. The grip portion 115 is a holding portion formed so as to be easy to grip with the right hand when the user holds the camera 100. The lid 116 is a lid for closing the slot for storing the recording medium. The terminal cover 117 is a cover for protecting a connector for connecting a connection cable or the like of an external device.
Further, inside the camera 100, a quick return mirror 118 which is up and down by an actuator is disposed. The camera 100 also includes a mounting unit 119 for mounting a lens unit as an interchangeable lens, and a communication terminal 120 for communicating with the lens unit.

FIG. 2 is a block diagram showing an example of the configuration of the camera 100. As shown in FIG. The same components as those shown in FIG. The camera 100 is mounted with a removable lens unit 201.
The lens unit 201 includes an aperture 202, a lens group 203, an aperture drive circuit 204, an AF (auto focus) drive circuit 205, a lens control circuit 206, a communication terminal 207, and the like. The aperture 202 is configured such that the aperture diameter can be adjusted. The lens group 203 is composed of a plurality of lenses. The diaphragm drive circuit 204 adjusts the amount of light by controlling the aperture diameter of the diaphragm 202. The AF drive circuit 205 drives the lens group 203 to focus. The lens control circuit 206 controls the diaphragm drive circuit 204, the AF drive circuit 205, and the like based on an instruction of a system control unit 50 described later. The lens control circuit 206 controls the diaphragm 202 via the diaphragm drive circuit 204 and shifts the position of the lens group 203 via the AF drive circuit 205 to focus. The lens control circuit 206 can communicate with the camera 100. Specifically, communication is performed via the communication terminal 207 of the lens unit 201 and the communication terminal 120 of the camera 100.

Next, the camera 100 will be described.
The camera 100 includes a quick return mirror 118, a focusing screen 208, a pentaprism 209, an AE (automatic exposure) sensor 210, a focus detection unit 211, a finder 114, a shutter 212, an imaging unit 213, and a system control unit 50.
The quick return mirror 118 (hereinafter, the mirror 118) is moved up and down by an actuator based on an instruction from the system control unit 50 when exposure, display of a live view image, and moving image shooting. The mirror 118 switches the light flux incident from the lens group 203 to the finder 114 side or the imaging unit 213 side. In the normal case, the mirror 118 is arranged to guide the light flux to the finder 114 side. On the other hand, when shooting or displaying a live view image, the mirror 118 bounces upward and guides the light flux to the imaging unit 213 (mirror up). The mirror 118 is a half mirror whose center portion transmits a part of light, and transmits a part of the light flux so as to be incident on the focus detection unit 211 for performing focus detection.

The AE sensor 210 measures the brightness of the subject passing through the lens unit 201.
The focus detection unit 211 detects the defocus amount based on the light flux transmitted by the mirror 118. The system control unit 50 controls the lens unit 201 based on the defocus amount to perform phase difference AF. By observing the focusing screen 208 through the pentaprism 209 and the finder 114, the user can confirm the focus and composition of the optical image of the subject obtained through the lens unit 201. The shutter 212 is a focal plane shutter that can freely control the exposure time of the imaging unit 213 based on an instruction of the system control unit 50. The imaging unit 213 is an imaging device configured of a CCD, a CMOS device, or the like that converts an optical image into an electrical signal.

  The camera 100 further includes an A / D converter 214, a memory control unit 215, an image processing unit 216, a memory 217, a D / A converter 218, and a display unit 105. The A / D converter 214 converts an analog signal output from the imaging unit 213 into a digital signal. The image processing unit 216 performs predetermined pixel interpolation, resizing processing such as reduction, or color conversion processing on the image data from the A / D converter 214 or the image data from the memory control unit 215. Further, in the image processing unit 216, predetermined arithmetic processing is performed using the captured image data, and the system control unit 50 performs exposure control and distance measurement control based on the obtained calculation result. By this processing, TTL (through-the-lens) AF processing, AE processing, and EF (flash pre-emission) processing are performed. Furthermore, the image processing unit 216 performs predetermined arithmetic processing using the photographed image data, and also performs TTL AWB (auto white balance) processing based on the obtained arithmetic result.

  Image data from the A / D converter 214 is written directly to the memory 217 via the image processing unit 216 and the memory control unit 215 or via the memory control unit 215. The memory 217 stores image data obtained by the imaging unit 213 and converted into digital data by the A / D converter 214, and image data to be displayed on the display unit 105. The memory 217 has a sufficient storage capacity to store a predetermined number of still images and moving images and sounds for a predetermined time. The memory 217 also serves as a memory (video memory) for displaying an image.

  The D / A converter 218 converts the display image data stored in the memory 217 into an analog signal and supplies the analog signal to the display unit 105. Therefore, the display image data written in the memory 217 is displayed by the display unit 105 via the D / A converter 218. The display unit 105 performs display according to the analog signal from the D / A converter 218 on a display such as an LCD. A D / A converter 218 converts a digital signal once A / D converted by the A / D converter 214 and stored in the memory 217 into an analog signal, sequentially transfers it to the display unit 105, and displays the live view image. (Through display), it functions as an electronic view finder.

  The camera 100 further includes an in-finder display unit 219, an in-finder display drive circuit 220, an out-of-finder display unit 104, an out-finder display drive circuit 221, an illumination unit 222, a non-volatile memory 223, a system memory 224, and a system timer 225. . The in-finder display unit 219 displays, via the in-finder display drive circuit 220, a frame (AF frame) indicating the position at which AF is currently performed, an icon indicating the setting state of the camera, and the like. The outside finder display unit 104 displays setting values such as the shutter speed, the aperture value, and the ISO sensitivity via the outside finder display drive circuit 221. The illumination unit 222 illuminates the out-of-finder display unit 104 by lighting up. The illumination unit 222 is, for example, backlight illumination, and corresponds to an example of illumination means. The non-volatile memory 223 is an electrically erasable / storable memory, and for example, an EEPROM or the like is used. The non-volatile memory 223 stores constants, programs, threshold values and the like for the operation of the system control unit 50. This program is a program for executing the process of the flowchart to be described later.

The system memory 224 uses, for example, a RAM. In the system memory 224, constants and variables for operation of the system control unit 50, programs read out from the non-volatile memory 223, and the like are expanded. A system timer 225 is a clock unit that measures time used for various controls and time of a built-in clock.
The system control unit 50 has at least one processor and controls the entire camera 100. The system control unit 50 implements each process described later by executing the program stored in the non-volatile memory 223 described above. The system control unit 50 also performs display control by controlling the memory 217, the D / A converter 218, the display unit 105, the finder outside display unit 104, the finder outside display driving circuit 221, and the like. The system control unit 50 corresponds to an example of control means and setting means.

The camera 100 also has operation means for inputting various operation instructions to the system control unit 50 such as the mode switching switch 103, the first shutter switch 226, the second shutter switch 227, and the operation unit 228.
The mode switching switch 103 is an operation unit for switching to any one of a still image shooting mode, a moving image shooting mode, a reproduction mode, and the like. The system control unit 50 sets the mode switched by the mode switch 103. Modes included in the still image shooting mode include auto shooting mode, auto scene determination mode, manual mode, aperture priority mode (Av mode), shutter speed priority mode (Tv mode), long time exposure (bulb) shooting mode, etc. is there. In addition, there are various scene modes, program AE mode, custom mode, and the like, which are shooting settings for each shooting scene. The mode changeover switch 103 can directly switch to any of the modes described above. In addition, after switching to the menu button by the mode switching switch 103, another operation unit may be used to switch to any of the modes described above included in the menu button. Similarly, a plurality of moving image shooting modes may be included.

During the operation of the shutter button 101, the first shutter switch 226 is turned on by a so-called half press (shooting preparation instruction) to generate a first shutter switch signal SW1. The system control unit 50 starts operations such as an AF process, an AE process, an AWB process, and an EF process according to the first shutter switch signal SW1.
The second shutter switch 227 is turned on by completion of the operation of the shutter button 101, that is, full-press (shooting instruction), and generates a second shutter switch signal SW2. The system control unit 50 starts a series of photographing processing operations from reading of the signal from the imaging unit 213 to writing of the image data to the recording medium 240 by the second shutter switch signal SW2.

  The operation unit 228 is various operation members as an input unit that receives an operation from the user. The operation unit 228 appropriately assigns functions to each scene by selecting and operating various function icons displayed on the display unit 105, and functions as various function buttons. The function buttons include, for example, an end button, a back button, an image feed button, a jump button, a narrowing-down button, and an attribute change button. For example, when the menu button is pressed, various settable menu screens are displayed on the display unit 105. The user can intuitively perform various settings using the menu screen displayed on the display unit 105, the cross key 108, the SET button 109, and the like. The operation unit 228 includes, for example, the shutter button 101, the main electronic dial 102, the power switch 106, the sub electronic dial 107, the cross key 108, and the SET button 109. In addition, the operation unit 228 includes, for example, a live view button 110, an enlargement button 111, a reduction button 112, a reproduction button 113, an illumination button 228a, and the like. The illumination button 228 a is an operation member operated when lighting the illumination unit 222 or the like. However, the illumination button 228 a is not limited to a physical operation member, and may be a touch button displayed on the display unit 105. The illumination button 228a corresponds to an example of the operation means. The illumination button 228a is preferably provided on the same surface as the surface provided with the out-of-finder display portion 104 among the plurality of surfaces of the camera 100, because the illumination button 228a can be operated while looking at the out-of-finder display portion 104.

The camera 100 further includes a power control unit 229, a power supply unit 230, a recording medium I / F 231, a communication unit 232, an attitude detection unit 233, and the like. The power supply control unit 229 includes a battery detection circuit, a DC-DC converter, a switch circuit for switching a block to be energized, and the like, and detects the presence or absence of a battery, the type of battery, and the battery remaining amount. Further, the power control unit 229 controls the DC-DC converter based on the detection result and the instruction of the system control unit 50, and supplies the necessary voltage to each unit including the recording medium 240 for a necessary period. The power supply unit 230 is made of a primary battery such as an alkaline battery or a lithium battery, a secondary battery such as a NiCd battery, a NiMH battery, a Li battery or the like, an AC adapter or the like. The recording medium I / F 231 is an interface with the recording medium 240 such as a memory card or a hard disk. The recording medium 240 is a recording medium such as a memory card for storing a photographed image, and is formed of a semiconductor memory, a magnetic disk, or the like. The communication unit 232 connects the camera 100 to an external device via a wireless or wired cable, and transmits and receives video signals and audio signals. In addition, the communication unit 232 transmits an image (including a live view image) captured by the imaging unit 213 or an image stored in the recording medium 240, and receives image data and other various information from an external device. Can be The communication unit 232 is also connectable to a wireless local area network (LAN) and the Internet.
The posture detection unit 233 detects the posture of the camera 100 with respect to the gravity direction. Based on the posture detected by the posture detection unit 233, the system control unit 50 shoots whether the image photographed by the imaging unit 213 is an image photographed by holding the camera 100 sideways or held vertically. It can be determined whether it is an image. The system control unit 50 can add orientation information according to the attitude detected by the attitude detection unit 233 to the image data captured by the imaging unit 213 or can rotate and store the image. . An acceleration sensor, a gyro sensor, or the like can be used for the posture detection unit 233.

Next, a display form of setting values in the finder external display unit 104 of the present embodiment will be described. The outside-of-finder display unit 104 displays the display target with either the first color or the second color brighter than the first color. That is, in the outside finder display unit 104, the display target is displayed in two colors (two values). In the present embodiment, the case where the first color is black and the second color is white will be described as an example.
FIG. 3A to FIG. 3C are diagrams showing an example of display modes in the outside finder display unit 104. As shown in FIG. In the present embodiment, the set value is displayed on the display section outside the finder 104 in one of the three display forms of FIGS. 3A to 3C.
On the outside-of-finder display unit 104, setting values regarding shooting set in the camera 100 are displayed as display targets. Here, the set values include, for example, the shutter speed 301, the aperture value 302, the ISO sensitivity 303, and the like. In addition, in the outside finder display unit 104, the display target is displayed in white, the first color arrangement state in which the display target background is displayed in black, the display target is displayed in black, and the display target background is displayed in white. There is a second color arrangement state.
Also, a mark 304 shown in FIGS. 3B and 3C schematically indicates that the illumination unit 222 is turned on, and in FIG. 3A where the mark 304 is not present, the illumination unit 222 is turned off Is shown.

FIG. 3A shows a first color arrangement state in which the display target is displayed in white and the background of the display target is displayed in black, and the illumination unit 222 is in the off state. The display mode shown in FIG. 3A is suitable, for example, when the user visually recognizes in a bright place.
FIG. 3B shows a first color arrangement state in which the illumination unit 222 is turned on. In the display mode shown in FIG. 3B, the display mode before the display mode in FIG. 3A shifts to the display mode in FIG. .
FIG. 3C shows a second color arrangement state in which the display target is displayed in black and the background of the display target is displayed in white, and the illumination unit 222 is in a lit state. The display mode shown in FIG. 3C is suitable for the case where the user visually recognizes in a dark place.

Next, display control in the outside finder display unit 104 according to the present embodiment will be described with reference to the flowchart in FIG.
The flowchart of FIG. 4 is realized by the system control unit 50 loading a program stored in the non-volatile memory 223 into the system memory 224 and executing it. The flowchart in FIG. 4 is started when the power of the camera 100 is turned on, and the set value set by the system control unit 50 is displayed on the finder outside display unit 104. In the flowchart of FIG. 4, the first color arrangement state is described as black background, and the second color arrangement state is described as white background.

In S401, the system control unit 50 determines whether the illumination button 228a has been operated (pressed). When the illumination button 228a is operated, the process proceeds to S402, and when the illumination button 228a is not operated, the operation of the illumination button 228a is on standby.
In step S402, the system control unit 50 confirms the current color arrangement state of the out-of-finder display unit 104 and the illumination state of the illumination unit 222. The system control unit 50 confirms the color arrangement state via the finder external display drive circuit 221, and confirms the illumination state via the illumination unit 222. Here, when the color arrangement state is the first color arrangement state (display target is white, background is black) and the illumination unit 222 is on, that is, the state shown in FIG. 3B. In the case, the process proceeds to step S403, and in the case of being different from the state, the process proceeds to step S409.

In step S403, the system control unit 50 starts timer measurement for measuring the time during which the operation (depression) of the illumination button 228a continues. That is, the system control unit 50 uses the system timer 225 to measure the time during which the lighting button 228a is continuously pressed.
In S404, the system control unit 50 determines whether the operation (depression) of the illumination button 228a has been released. When the operation of the lighting button 228a is released, the process proceeds to S405. In the case of proceeding to S405, it is assumed that the lighting button 228a is pressed and immediately released. If the operation of the light button 228a is not released, that is, if the operation is continued, the process proceeds to S406.

In S405, the system control unit 50 controls the illumination unit 222 to turn off the light while keeping the color arrangement state of the outside finder display unit 104 in the first color arrangement state (display target is white, background is black). That is, the system control unit 50 switches the outside finder display unit 104 from the state shown in FIG. 3 (b) to the state shown in FIG. 3 (a). Thereafter, the processing of the flowchart of FIG. 4 is ended.
In S406, the system control unit 50 determines whether or not the time during which the operation (depression) of the lighting button 228a is continued has exceeded a predetermined time. Information on the predetermined time is stored, for example, in the non-volatile memory 223. If the predetermined time has not elapsed, the process returns to S404. If the predetermined time has elapsed, the process proceeds to step S407. In the case of proceeding to S407, an operation (long press) in which the illumination button 228a is continuously pressed is assumed.

In step S407, the system control unit 50 changes the color arrangement state of the outside finder display unit 104 to the second color arrangement state (display target is black, background is white), and controls the illumination unit 222 while it is lit. That is, the system control unit 50 switches the outside finder display unit 104 from the state shown in FIG. 3 (b) to the state shown in FIG. 3 (c).
In S408, the system control unit 50 determines whether the operation of the lighting button 228a has been released. When the operation of the illumination button 228a is released, the processing of the flowchart of FIG. 4 is ended. When the operation of the lighting button 228a is not released, the operation of the lighting button 228a is on standby.

  When the process proceeds from step S402 to step S409, the system control unit 50 confirms the current color arrangement state of the outside finder display unit 104 and the illumination state of the illumination unit 222. Here, when the color arrangement state is the second color arrangement state (display target is black, background is white) and the illumination part 222 is on, that is, the state shown in FIG. 3C. In the case where it is different from the state, the process proceeds to S410. Here, when the process proceeds to S410, the color arrangement state is the first color arrangement state (display target is white, the background is black), and the state where the illumination unit 222 is off, that is, FIG. 3A. It corresponds to the state shown.

In step S410, the system control unit 50 controls the illumination unit 222 to turn on while keeping the color arrangement state of the outside finder display unit 104 in the first color arrangement state (display target is white, background is black). That is, the system control unit 50 switches the outside finder display unit 104 from the state shown in FIG. 3 (a) to the state shown in FIG. 3 (b). For example, since the user uses the camera 100 in a dark place, it may be difficult to confirm the setting value displayed on the outside finder display unit 104. In this case, the user operates the illumination button 228 a in S <b> 401 in order to confirm the set value displayed on the outside finder display unit 104. From the state where the color arrangement state is the first color arrangement state as shown in FIG. 3A according to the operation of the illumination button 228a in S401 and the illumination part 222 is extinguished, as shown in FIG. As shown in (b), the illumination unit 222 is turned on while maintaining the color arrangement state.
In S410, the system control unit 50 does not turn on the illumination unit 222 in response to the user pressing and releasing the illumination button 228a in S401, but turns on the illumination unit 222 immediately after being pressed.

In S411, the system control unit 50 starts timer measurement for measuring the time during which the operation (depression) of the illumination button 228a is continued. This process is the same process as S403.
In S412, the system control unit 50 determines whether the operation (depression) of the lighting button 228a has been released. When the operation of the illumination button 228a is released, the processing of the flowchart of FIG. 4 is ended. When the process of the flowchart of FIG. 4 is ended, it is assumed that the lighting button 228a is pressed and immediately released. If the operation of the illumination button 228a is not released, that is, if the operation is continued, the process proceeds to S413.

  In step S413, the system control unit 50 determines whether the time during which the operation (depression) of the illumination button 228a is continued has exceeded a predetermined time. If the predetermined time has not elapsed, the process returns to S412. If the predetermined time has elapsed, the process proceeds to S414. In the case of proceeding to S414, an operation (long press) in which the illumination button 228a is continuously pressed is assumed.

In step S414, the system control unit 50 changes the color arrangement state of the outside finder display unit 104 to the second color arrangement state (display target is black, background is white), and controls the illumination unit 222 in the lit state. That is, the system control unit 50 switches the outside finder display unit 104 from the state shown in FIG. 3 (b) to the state shown in FIG. 3 (c). As described above, when the outside finder display unit 104 is in the second color arrangement state (display target is black, background is white) and the lighting unit 222 is on, the user is outside the finder even in a dark place. The set value of the display unit 104 can be easily confirmed. In particular, when the user is not adapted to the dark place, it is possible to easily confirm the setting value of the outside finder display unit 104.
Also, when the user operates the illumination button 228a in S401 because it is difficult for the user to check the setting value of the outside finder display unit 104 because of a dark place, the screen is not switched from FIG. 3A to FIG. The state of FIG. 3 (b) is interposed. If FIG. 3 (c) is instantaneously changed from FIG. 3 (a) to FIG. 3 (c), the outside finder display portion 104 becomes too bright suddenly, and the visibility is rather deteriorated when the user adapts to the dark place. Or, there is a possibility that the dark adaptation may be broken. Therefore, before switching to the state of FIG. 3C, by interposing the state of FIG. 3B, it is suppressed that the outside of the finder display part 104 becomes too bright instantaneously, thereby displaying the outside of the finder display part. The visibility of 104 can be improved.

In S415, the system control unit 50 determines whether the operation of the illumination button 228a has been released. When the operation of the illumination button 228a is released, the processing of the flowchart of FIG. 4 is ended. When the operation of the lighting button 228a is not released, the operation of the lighting button 228a is on standby.
When the process proceeds from step S409 to step S416, the system control unit 50 starts timer measurement for measuring the time during which the operation (depression) of the illumination button 228a is continued. This process is the same process as S403.
In S417, the system control unit 50 determines whether the operation (depression) of the lighting button 228a has been released. When the operation of the lighting button 228a is released, the process proceeds to S418. In the case of proceeding to S418, it is assumed that the lighting button 228a is pressed and then released immediately. If the operation of the light button 228a is not released, that is, if the operation is continued, the process proceeds to S419.

In step S418, the system control unit 50 changes the color arrangement state of the outside finder display unit 104 to the first color arrangement state (display target is white, background is black), and controls the illumination unit 222 while it is lit. That is, the system control unit 50 switches the outside finder display unit 104 from the state shown in FIG. 3 (c) to the state shown in FIG. 3 (b).
In step S419, the system control unit 50 determines whether the time during which the operation (depression) of the lighting button 228a is continued has exceeded a predetermined time. If the predetermined time has not elapsed, the process returns to S417. If the predetermined time has elapsed, the process proceeds to S420. In the case of proceeding to S420, an operation (long press) in which the illumination button 228a is continuously pressed is assumed.

In S420, the system control unit 50 changes the color arrangement state of the outside finder display unit 104 to the first color arrangement state (display target is white, background is black), and controls the illumination unit 222 to turn off. That is, the system control unit 50 switches the outside finder display unit 104 from the state shown in FIG. 3 (c) to the state shown in FIG. 3 (a).
In S421, the system control unit 50 determines whether the operation of the lighting button 228a has been released. When the operation of the illumination button 228a is released, the processing of the flowchart of FIG. 4 is ended. When the operation of the lighting button 228a is not released, the operation of the lighting button 228a is on standby.

  As described above, in the first color arrangement state in which the outside finder display unit 104 according to the present embodiment displays the display target in white and the background in black, and the illumination unit 222 is turned off, the illumination button 228 a is operated. The illumination unit 222 is turned on without changing the color arrangement state in accordance with the change. Thereafter, in response to the fact that the operation on the illumination button 228a continues for a predetermined time, the display target is changed to a second color arrangement state in which the display target is displayed in black and the background is displayed in white while maintaining lighting of the illumination unit 222. Therefore, in the present embodiment, in the first color arrangement state and in the state where the illumination unit 222 is off, when the user operates the illumination button when it is difficult to see because of a dark place, illumination is performed without changing the color arrangement state. The unit 222 is turned on. Thus, the visibility of the outside-of-finder display portion 104 can be improved by making the outside-of-finder display portion 104 brighter in stages and suppressing the fact that it is too bright in an instant.

In addition, when the lighting unit 222 is turned on and changed to the second color arrangement state instantly from the first color arrangement state, the thickness of the line to be displayed may be visually different for human beings, and the user can Feel that the impression of has changed, it may cause discomfort. As in the present embodiment, by making the outside finder display section 104 brighter in stages, it is possible to soften the user from feeling that the impression of the screen design has changed, and to suppress the occurrence of discomfort.
Further, in response to the operation to the illumination button 228a continuing for a predetermined time, the display unit 104 is switched to the second color arrangement state while maintaining the illumination of the illumination unit 222, thereby displaying the outside of the finder display unit 104 even in a dark place. The display target of can be easily confirmed. In particular, when the user is not adapted to the dark place, it is possible to easily confirm the display object of the outside finder display unit 104. As described above, according to the present embodiment, the visibility of the out-of-finder display unit 104 can be improved by controlling the switching of the illumination and color arrangement of the out-of-finder display unit 104 more suitably.

Second Embodiment
In the second embodiment, a case will be described where switching of the display mode is changed in the dark place photographing mode or the dark place display mode. The configuration of the camera 100 is the same as that of FIGS. 1 and 2, and the description thereof will be omitted.
Here, the dark place shooting mode is a shooting mode suitable for shooting in a dark place. For example, the dark place photographing mode includes a starry sky mode, a hand-held night view mode, a fireworks mode, and the like. The starry sky mode is a shooting mode suitable for shooting a starry sky, and development processing suitable for the brightness of the starry sky is executed. The hand-held night view mode is a shooting mode suitable for shooting a night view with the camera 100 held by hand without using a tripod or the like. The fireworks mode is a shooting mode suitable for shooting fireworks (fireworks). After the user selects the scene mode with the mode switching switch 103, the system control unit can select any of the starry sky mode, the hand-held night view mode, and the fireworks mode described above included in the scene mode using the cross key 108 etc. 50 sets the selected mode. Even when the user selects a mode in which the shutter speed is set to 1 second or more, the system control unit 50 sets the shooting mode as the dark place shooting mode.

  The dark place display mode is a display mode suitable for viewing the display unit 105 in a dark place. In the dark place display mode, the display object displayed in color on the display unit 105 is displayed in a color that is easily visible in a dark place. Specifically, only the B (blue) component of RGB is reduced (including the case where there is no component of B). The human eye can not see the surroundings in the dark while it is not adapted to the dark, but gradually adapts to it over time, so that it becomes visible in the dark by becoming a state adapted to the dark. On the other hand, when the human eye sees the wavelength of light of the component B, adaptation to the dark can be solved in a short time. Therefore, by reducing the component of B in the dark place display mode, adaptation to the dark place can not be easily solved even when the user visually recognizes the display unit 105. When the user turns on the dark place display mode from the menu screen, the system control unit 50 sets the dark place display mode. Note that, in the dark place display mode, various setting information related to photographing including the image photographed by the imaging unit 213 is displayed on the display unit 105 with only the component of B reduced.

Next, display control in the out-of-finder display unit 104 of the camera 100 according to the present embodiment will be described with reference to the flowchart in FIG.
The flowchart of FIG. 5 is realized by the system control unit 50 loading a program stored in the non-volatile memory 223 into the system memory 224 and executing it. The flowchart in FIG. 5 is started when the power of the camera 100 is turned on, and the set value set by the system control unit 50 is displayed on the finder outside display unit 104. In the flowchart of FIG. 5, the first color arrangement state is described as black back, and the second color arrangement state is described as white back.

In S501, the system control unit 50 determines whether the illumination button 228a has been operated (pressed). When the illumination button 228a is operated, the process proceeds to S502, and when the illumination button 228a is not operated, the operation of the illumination button 228a is on standby.
In S502, the system control unit 50 confirms the current color arrangement state of the outside finder display unit 104 and the illumination state of the illumination unit 222. Here, when the color arrangement state is the first color arrangement state (display target is white, background is black) and the illumination unit 222 is off, the illumination state, that is, the state illustrated in FIG. 3A. In the case, the process proceeds to step S503, and in the case of being different from the state, the process proceeds to step S504.

In step S503, the system control unit 50 controls the lighting unit 222 to turn on while keeping the color arrangement state of the outside finder display unit 104 in the first color arrangement state (display target is white, background is black). That is, the system control unit 50 switches the outside finder display unit 104 from the state shown in FIG. 3 (a) to the state shown in FIG. 3 (b).
In step S504, the system control unit 50 confirms the current color arrangement state of the outside finder display unit 104 and the illumination state of the illumination unit 222. Here, when the color arrangement state is the first color arrangement state (display target is white, background is black) and the illumination unit 222 is on, that is, the state shown in FIG. 3B. In the case where it is different from the state, the process proceeds to S505. Here, when the process proceeds to S505, the color arrangement state is the second color arrangement state (display target is black, background is white), and the illumination unit 222 is on, that is, FIG. 3C. It corresponds to the state shown.

In step S505, the system control unit 50 changes the color arrangement state of the outside finder display unit 104 to the first color arrangement state (display target is white, background is black), and controls the illumination unit 222 to turn off. That is, the system control unit 50 switches the outside finder display unit 104 from the state shown in FIG. 3 (c) to the state shown in FIG. 3 (a).
In step S506, the system control unit 50 determines whether the dark shooting mode or the dark display mode is set. Specifically, the system control unit 50 makes a determination based on the shooting mode or the display mode currently set in the camera 100. If it is set in either the dark place photographing mode or the dark place display mode, the process advances to step S505. If it is not set in either the dark place photographing mode or the dark place display mode, the process advances to step S507.

In S507, the system control unit 50 changes the color arrangement state of the outside finder display unit 104 to the second color arrangement state (display target is black, background is white), and the illumination unit 222 is kept lit. That is, the system control unit 50 switches the outside finder display unit 104 from the state shown in FIG. 3 (b) to the state shown in FIG. 3 (c).
On the other hand, when the process proceeds from step S506 to step S505, the system control unit 50 does not change the color arrangement state of the outside finder display unit 104 to the second color arrangement state, and the first color arrangement state (display target is white, background is Control is performed to turn off the illumination unit 222 as it is. That is, the system control unit 50 switches the outside finder display unit 104 from the state shown in FIG. 3 (b) to the state shown in FIG. 3 (a). As described above, when the dark place photographing mode or the dark place display mode is set, control is performed so as not to switch the lighting unit 222 to the lighting state in the second color arrangement state. Temporarily, when the dark space photographing mode or the dark space display mode is set, if the color arrangement state is switched to the second color arrangement state and the lighting unit 222 is turned on, the user visually recognizes the outside finder display unit 104. There is a possibility that the dark adaptation will be solved. That is, when the dark place photographing mode or the dark place display mode is set, it is assumed that the user is already adapted to the dark place, and the lighting unit 222 is turned on in the second color arrangement state. The visibility of the out-of-finder display section 104 is improved by not switching to the above.

  In S508, the system control unit 50 determines whether the operation (depression) of the lighting button 228a has been released. The system control unit 50 determines that the operation of the lighting button 228a is released when the pressing of the lighting button 228a is finished. When the operation of the illumination button 228a is released, the processing of the flowchart of FIG. 5 is ended. If the operation of the light button 228a is not released, the process waits for the operation of the light button 228a to be released.

  As described above, in the present embodiment, when the mode specialized for the dark place is set, the illumination button 228 a is operated in the first color arrangement state and in the state where the illumination unit 222 is on. Even if it does, it does not change to the second color arrangement state. As described above, when the mode specialized for the dark place is set, it is assumed that the user is adapted to the dark place, and the lighting unit 222 is turned on in the second color arrangement state. By not switching, the visibility of the outside finder display unit 104 can be improved.

In the present embodiment, when the color arrangement state is the second color arrangement state and the illumination unit 222 is not switched on in the second color arrangement state when the dark place photographing mode or the dark place display mode is set. Although described, it is not limited to this case.
For example, when the long-exposure shooting mode is set, the system control unit 50 can perform the same processing as when the dark-room shooting mode is set. That is, the system control unit 50 processes the long-exposure shooting mode as one of the dark place shooting modes.
Further, for example, the camera 100 is provided with an external light detection sensor as an external light detection unit, and the system control unit 50 sets the color arrangement state to the second color arrangement state based on the information of the external light detected by the external light detection sensor. The lighting unit 222 may not be switched on. Specifically, when the ambient light is darker than the threshold determined to be a dark place in S506, the system control unit 50 can perform control to proceed to S505 without proceeding to S507. At this time, in addition to the case where the ambient light is darker than the threshold determined to be a dark place, the system control unit 50 may control so as not to proceed to S507 but to proceed to S505 when predetermined time continues.

  In addition, this embodiment may be applied to the first embodiment. Specifically, between S406 and S407 in the flowchart of FIG. 4, the process (S506) of determining whether the system control unit 50 is set to either the dark place photographing mode or the dark place display mode is performed. to add. In this case, if neither the dark place photographing mode nor the dark place display mode is set, the process advances to step S407. On the other hand, if either the dark place photographing mode or the dark place display mode is set, the process of S407 is skipped and the process proceeds to S408. That is, the system control unit 50 keeps the color arrangement state as the first color arrangement state (display target is white, background is black) and the illumination state in which the illumination unit 222 is on. However, the present invention is not limited to this case, and the process may advance to step S405 if the dark place photographing mode or the dark place display mode is set.

  Similarly, between S413 and S414 in the flowchart of FIG. 4, a process (S506) is added to determine whether the system control unit 50 is set to either the dark place photographing mode or the dark place display mode. . If neither the dark place photographing mode nor the dark place display mode is set, the process advances to step S414. On the other hand, if either the dark place photographing mode or the dark place display mode is set, the process of S414 is skipped and the process proceeds to S415. That is, the system control unit 50 keeps the color arrangement state as the first color arrangement state (display target is white, background is black) and the illumination state in which the illumination unit 222 is on. However, the present invention is not limited to this case, and the process may advance to step S405 if the dark place photographing mode or the dark place display mode is set.

  Further, in the first embodiment and the second embodiment, it is assumed that the process of each flowchart is ended in a state where the illumination unit 222 is on. In this case, the system control unit 50 switches to the respective states (S407, S410, S414, S418, S503, and S507) and then sets the first color arrangement state in response to passage of a predetermined time, and the illumination unit 222. Control to turn off the light. In this processing, the user can confirm the display object of the finder outside display unit 104 after the predetermined time has passed since the user can confirm the display object of the finder outside display unit 104 if the predetermined time is reached. Is assumed to be small.

Further, in the first embodiment and the second embodiment, it is assumed that the system control unit 50 instructs the user to issue a photographing instruction with the shutter button 101 after the processing of the respective flowcharts is finished. In this case, the system control unit 50 turns off the illumination unit 222 and controls the display itself of the out-of-finder display unit 104 not to be displayed. Such processing is performed because it is assumed that the user is unlikely to confirm the display target of the out-of-finder display unit 104 after the photographing instruction is issued.
However, when the long-exposure shooting mode is set, the system control unit 50 controls not to display the outside finder display unit 104 even when the user issues a shooting instruction with the shutter button 101. . Specifically, the system control unit 50 controls the lighting unit 222 to be turned on or off in the first color arrangement state. The reason for this processing is that the user sometimes confirms the display target of the out-of-finder display section 104 in order to shoot for a long time in the long-exposure shooting mode.

As mentioned above, although the present invention has been described in detail based on its preferred embodiments, the present invention is not limited to these specific embodiments, and various forms within the scope of the present invention are also possible. Included in the present invention. Moreover, each embodiment mentioned above only shows one embodiment of this invention, and it may change suitably and may combine each embodiment.
Note that the above-described various controls described as being performed by the system control unit 50 may be performed by one hardware, or a plurality of hardware (for example, a plurality of processors or circuits) share the processing. The entire control may be performed.

  In the embodiment described above, although the present invention is applied to a digital camera as an example, the present invention is not limited to this case, and an electronic apparatus having display means and illumination means for illuminating the display means will be described. Is applicable. That is, the present invention is applicable to personal computers, PDAs, mobile phone terminals, portable image viewers, printer devices equipped with displays, digital photo frames, music players, game machines, electronic book readers and the like. Further, the present invention is applicable to a projection device, a home appliance device provided with a display, an in-vehicle device, and the like.

(Other embodiments)
The present invention is also realized by performing the following processing. That is, processing for supplying a program for realizing the functions of the above-described embodiments to a system or apparatus via a network or various storage media, and reading the program code and executing the program code by the computer (or CPU or MPU) of the system or apparatus. It is. In this case, the program and the recording medium storing the program constitute the present invention.

  50: System control unit 100: Digital camera 101: Shutter button 103: Mode switching button 104: Display outside finder 105: Display 213: Imaging unit 216: Image processing unit 221: Display outside finder display circuit 222: Lighting unit 228a: Lighting button 223: Non-volatile memory 240: Recording medium

Claims (19)

Display means for displaying a display target in one of a first color and a second color brighter than the first color;
Illumination means for illuminating the display means;
Operation means for instructing lighting of the lighting means;
In the first color arrangement state in which the display means displays the display object in the second color and the background of the display object is displayed in the first color, and in a state in which the illumination means is extinguished, The illumination unit is turned on without changing the color arrangement state in the display unit in response to the operation of the operation unit, and then the illumination is performed in response to the continuation of the operation on the operation unit for a predetermined time. Control means for displaying the display object in the first color and controlling the background of the display object to the second color arrangement state displayed in the second color while maintaining the lighting of the means; and ,
Electronic equipment characterized by having. Display means for displaying a display target in one of a first color and a second color brighter than the first color;
Illumination means for illuminating the display means;
Operation means for instructing lighting of the lighting means;
In the first color arrangement state in which the display means displays the display object in the second color and the background of the display object is displayed in the first color, and in a state in which the illumination means is extinguished, In response to the operation of the operation means, the illumination means is turned on without changing the color arrangement state in the display means, and then the illumination means is turned on in response to the operation means being operated again. Control means for displaying the display target in the first color and controlling the background of the display target to change to the second color arrangement state displayed in the second color while maintaining
Electronic equipment characterized by having. The control means
In the first color arrangement state and in the state where the illumination means is on, the illumination means is turned off without changing the color arrangement state in the display means in response to the operation of the operation means. To control and
In the first color arrangement state, and in the state in which the lighting means is on, the display means is maintained while lighting of the lighting means is maintained according to continuation of the operation on the operation means for a predetermined time. The electronic device according to claim 1, wherein the electronic apparatus is controlled to change the color arrangement state to the second color arrangement state. The control means
In the second color arrangement state and in the state where the illumination means is on, the color arrangement state in the display means is maintained while the illumination means is kept on in response to the operation of the operation means. Control to change to the first color arrangement state,
In the second color arrangement state and in the state in which the illumination means is on, the illumination means is turned off in response to the continuation of the operation means for a predetermined time, and the color arrangement state in the display means is 4. The electronic device according to claim 1, wherein control is performed to change the color arrangement state to 1. The control means
In the second color arrangement state and in the state where the illumination means is on, the illumination means is turned off in response to the operation of the operation means, and the color arrangement state in the display means is the first The electronic device according to claim 2, wherein the electronic device is controlled to change to the color arrangement state of. The control means
The lighting means is turned off in response to the elapse of a predetermined time after the display object is changed to the second color arrangement state while the lighting means is kept on, and the color arrangement state in the display means is The electronic device according to any one of claims 1 to 5, wherein control is performed to change to the first color arrangement state. Any of a plurality of modes including a dark place photographing mode in which photographing suitable for the dark place is performed by the imaging means, or a dark place display mode in which display suitable for the dark place is performed on the second display means different from the display means. Setting means for setting the mode of
The control means
When the dark place photographing mode or the dark place display mode is set by the setting means, the operation means is operated in the first color arrangement state and in the state where the illumination means is extinguished. In response to that, the illumination means is turned on without changing the color arrangement state in the display means, and thereafter, even if the operation on the operation means continues for a predetermined time, or the operation means is operated again The electronic device according to any one of claims 1 to 6, wherein control is performed so that the color arrangement state in the display unit is not changed to the second color arrangement state. The control means
When the dark place photographing mode or the dark place display mode is set by the setting means, the operation means is operated in the first color arrangement state and in the state where the illumination means is extinguished. Accordingly, the illumination means is turned on without changing the color arrangement state in the display means, and thereafter, even if the operation on the operation means continues for a predetermined time, the color arrangement state in the display means is not changed. The electronic device according to claim 7, wherein the electronic device is controlled to maintain lighting of the lighting means. The control means
When the dark place photographing mode or the dark place display mode is set by the setting means, the operation means is operated in the first color arrangement state and in the state where the illumination means is extinguished. Accordingly, even if the illumination means is turned on without changing the color arrangement state in the display means, and then the operation means is operated again, the illumination can be changed without changing the color arrangement state in the display means. The electronic device according to claim 7, wherein the electronic device is controlled to turn off the means. In the dark place shooting mode,
Features include a mode suitable for shooting starry sky, a mode suitable for shooting night scenes, a mode suitable for shooting fireworks, a long exposure shooting mode, or a mode when the shutter speed is set to 1 second or more. The electronic device according to any one of claims 7 to 9. The dark place display mode is
The electronic device according to any one of claims 7 to 9, wherein the mode is a mode in which the B component of RGB is reduced for display on the second display means. The control means
12. The control method according to claim 7, wherein at least one of the image photographed by the imaging unit and the setting information related to photographing is displayed on the second display unit. The electronic device as described in a paragraph. The control means
The electronic device according to any one of claims 1 to 12, wherein control is performed to display setting information related to shooting as the display target. Imaging means for photographing a subject;
A photographing instruction unit that instructs the imaging unit to start photographing of a subject;
The control means
14. The electronic device according to claim 13, wherein when the start of shooting is instructed by the shooting instruction means, the display means is controlled to be non-displayed. The control means
When the long-exposure shooting mode is set, the display means is controlled not to be hidden even when the start of shooting is instructed by the shooting instruction means. Item 15. The electronic device according to item 14. Display means for displaying a display target in one of a first color and a second color brighter than the first color;
Illumination means for illuminating the display means;
A control method of an electronic device, comprising: operating means for instructing lighting of the lighting means.
In the first color arrangement state in which the display means displays the display object in the second color and the background of the display object is displayed in the first color, and in a state in which the illumination means is extinguished, The illumination unit is turned on without changing the color arrangement state in the display unit in response to the operation of the operation unit, and then the illumination is performed in response to the continuation of the operation on the operation unit for a predetermined time. The control step of controlling the display object to be displayed in the first color and changing the background of the display object to the second color arrangement state displayed in the second color while maintaining the lighting of the means is controlled And controlling the electronic device. Display means for displaying a display target in one of a first color and a second color brighter than the first color;
Illumination means for illuminating the display means;
A control method of an electronic device, comprising: operating means for instructing lighting of the lighting means.
In the first color arrangement state in which the display means displays the display object in the second color and the background of the display object is displayed in the first color, and in a state in which the illumination means is extinguished, In response to the operation of the operation means, the illumination means is turned on without changing the color arrangement state in the display means, and then the illumination means is turned on in response to the operation means being operated again. And maintaining the display object in the first color, and controlling the background of the display object to be changed to the second color arrangement state displayed in the second color. The control method of the electronic device characterized by the above.   A program for causing a computer to function as a control unit of the electronic device according to any one of claims 1 to 15.   A computer readable recording medium storing a program for causing a computer to function as a control unit of the electronic device according to any one of claims 1 to 15.

Images