JP5039522B2 - Electronic device and display control method - Google Patents

Description

  The present invention relates to an electronic apparatus having a liquid crystal display means capable of switching between a display using external light and a display using illumination, and a display control method.

  Conventionally, a basic configuration of a liquid crystal display device mounted on an electronic apparatus is as shown in FIG. The liquid crystal display device includes a liquid crystal display member 151 that performs display, and an illumination member 153 that performs illumination from the back side of the liquid crystal display member 151. The display state is changed by inputting a predetermined electric signal to the liquid crystal display member 151 from the circuit board 156 which is bonded to the liquid crystal display member 151 through the conductive rubber 154 by adhesion or the like and electrically connected thereto. Can do.

  As the liquid crystal display member, there are a transmissive liquid crystal display member 151 shown in FIG. 23 and a reflective liquid crystal display member 151 ′ shown in FIG. 24. The liquid crystal display member 151 and the liquid crystal display member 151 ′ have the same structure except that the latter includes a reflection plate 1517.

  That is, a uniform gap is created by arranging a sphere called a spacer 1515 having a diameter of about several microns between the windshield 1511 and the rear glass 1512. Further, a sealing material 1516 is applied to a part of the surface of the rear glass 1512, and the rear glass 1512 and the front glass 1511 are bonded together. Liquid crystal is injected into a gap between the windshield 1511 and the rear glass 1512 from a portion where the sealing material 1516 is cut, and the liquid crystal injection portion is sealed with the sealing material 1516. A polarizing plate 1513 and a polarizing plate 1514 are bonded to the surface (outer surface) of the front glass 1511 and the rear glass 1512, respectively.

  In a liquid crystal display device using a TN (Twisted Nematic) type liquid crystal, an image (electrode) displayed on the inner surface (liquid crystal sealing side) of the front glass 1511 and the rear glass 1512 and a wiring connecting them are formed by a transparent electrode (ITO film). Yes.

  A liquid crystal display device using a TFT (Thin Film Transistor) is generally capable of color display and has a pixel structure that is regularly arranged in a grid pattern. In order to partially control the liquid crystal, a thin film transistor is formed for each pixel on the inner surface of the rear glass 1512. By driving the thin film transistors individually, transmission / non-transmission of light can be controlled for each pixel. In order to perform color display, a color filter is provided on the inner surface of the windshield 1511 corresponding to each pixel.

  In both the liquid crystal display device using TN type liquid crystal and the liquid crystal display device using TFT, when a voltage is applied between the front glass 1511 and the rear glass 1512, the molecules of the liquid crystal material between them rotate to change the polarization direction. is there. In this way, an image is formed by controlling lighting / non-lighting of each pixel by blocking / transmitting light incident through the rear glass 1512.

  The liquid crystal display member must be illuminated by some method because the display image is hardly visible as it is. In order to make the display visible from the front surface side of the liquid crystal display member, it is necessary to make a light beam for illumination enter from the back surface side of the liquid crystal display member. There are two types of liquid crystal display systems: one that reflects and uses light rays (external light) incident from the surface of the liquid crystal display member, and one that illuminates by disposing an illumination member on the back side of the liquid crystal display member. What is illuminated using external light is called a reflective liquid crystal display method, and what is illuminated using an illumination member is called a transmissive liquid crystal display method.

  The transmission-type liquid crystal display member 151 shown in FIG. 23 does not have the reflection plate 1517 of the reflection-type liquid crystal display member 151 ′, and the light beam irradiated from the illumination member 153 is illuminated as it is.

  The reflective liquid crystal display member 151 ′ shown in FIG. 24 includes a reflective plate 1517 further attached to the polarizing plate 1514 attached to the outer surface of the rear glass 1512, and external light is reflected by the reflective plate 1517. Illuminated with.

  Since the reflective liquid crystal display member 151 ′ uses external light, it is not necessary to provide an extra illumination member (light source) as compared with the transmissive liquid crystal display member 151. The larger the display device, the more light is required and the power consumption is considerably increased. Therefore, the absence of the illumination member is a great advantage. However, the reflective liquid crystal display member 151 ′ has a problem that sufficient illumination light can be obtained and the display can be seen in a bright place, but the reflected light cannot be obtained in a dark place and the illumination cannot be performed and the display cannot be seen. On the other hand, the transmissive liquid crystal display member 151 can be displayed because it is illuminated by the illumination member 153 even in a dark place, but power is consumed accordingly, and the illumination light is not sufficient in a considerably bright place, making it difficult to see the display. There's a problem.

  On the other hand, there is also a transflective liquid crystal display member using a transflective plate as the above-described reflective plate so as to have both reflective and transmissive characteristics. The transflective liquid crystal display member is convenient because it is devised so that it can be used as a reflective type when the external light is bright and can be used as a transmissive type when the external light is dark. However, since the reflecting plate is semi-transmissive (semi-reflective), half of both the light from the external light and the light irradiated from the illumination member are discarded. For this reason, there is a problem that the light use efficiency is lowered and the display becomes dark.

  In order to improve the above-described problem, a display device having the following structure has been proposed (see, for example, Patent Document 1). As shown in FIG. 25, the display device described in Patent Literature 1 illuminates the first liquid crystal element 201 on the back side of the first liquid crystal element 201 that is driven based on a control signal for displaying an image. 202 is arranged. In addition, the first liquid crystal element 201 and the illumination unit 202 can be switched between two states (a transmissive display state and a reflective display state) whose optical characteristics are different in the degree of transmission and reflection. 2 The liquid crystal element 203 is inserted. In addition, an external light illuminance detection unit 204 and a control unit 205 are provided. Reference numeral 206 denotes an operation unit, and 207 denotes a timer unit.

A signal indicating the luminance state of the external light detected by the external light illuminance detection unit 204 is sent to the control unit 205. When the control unit 205 determines that the external light luminance is greater than or equal to a certain value, the second liquid crystal element 203 is automatically set to the transmission mode. Switch automatically. Thereby, an illumination method with high visibility is selected according to the brightness of the external environment.
JP 2004-361727 A

  However, the display device described in Patent Document 1 has the following problems. A user who views the display on the display device may not know at a glance whether the current display state of the display device is a reflective display state or a transmissive display state. Further, when using external light as in the reflective display state, if the external light is colored, such as sunset, the display image is an image with that color added. In such a case, when a photographed image is viewed, an inherent color is added to the display image, so that the photographed image may be erroneously evaluated.

  An object of the present invention is to enable easy identification of whether the current display state of the liquid crystal display means is a reflective display (first display state) or a transmissive display (second display state). An object of the present invention is to provide an electronic device and a display control method capable of confirming a color state.

To achieve the above object, the present invention provides a first display state in which information is displayed using external light and a second display state in which information is displayed using an illumination light source inside the device. a liquid crystal display device capable of switching, the with the liquid crystal display means the information for identifying the identification icon whether the second display state or said first display state, the said first display state Control means for displaying at the same position of the liquid crystal display means as in the second display state, and when the display color of the liquid crystal display means in the first display state is confirmed or adjusted, the liquid crystal display And a control means for alternately displaying the display in the first display state and the display in the second display state for a predetermined time .

According to the present invention, the identification icon for identifying whether the liquid crystal display means is in the first display state or the second display state is displayed together with information on the liquid crystal display in the first display state and the second display state. Display at the same position on the means . Further, when the display color in the first display state of the liquid crystal display means is checked or adjusted, the display according to the first display state and the display according to the second display state are alternately displayed for a certain time on the liquid crystal display means. indicate. Thus, Ri current display state of the liquid crystal display means Do is possible to easily identify whether the first display state or a second display state, further, it is possible to check the state of the display color The

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration of a main part of a digital single-lens reflex camera (hereinafter referred to as a camera) as an electronic apparatus according to an embodiment of the present invention.

  In FIG. 1, the camera includes a CPU 1, a release switch 2, a shutter 3, an imaging unit 4, a liquid crystal display unit 5, a focus detection unit 6, a photometry unit 7, a setting change member 8, a display state change member 9, a main mirror (movable mirror) ) 10. The CPU 1 (control means) controls each part of the camera, and changes the display state of the liquid crystal display unit 5 to the first display state (reflective display) according to the operation content of the camera as shown in FIGS. State) and the second display state (transmission type display state). Further, as shown in FIGS. 18 to 21 described later, the CPU 1 has an identification icon configured by a plurality of colors for identifying whether the display state of the liquid crystal display unit 5 is the first display state or the second display state. Is displayed on the liquid crystal display 5 together with the image.

  The release switch 2 is a switch that serves as a trigger when the subject is imaged, and has a two-stage switch configuration (first-stage SW1, second-stage SW2). When the first SW 1 of the release switch 2 is turned on, the CPU 1 detects the focal length to the subject by the focus detection unit 6 and measures the brightness of the subject by the photometry unit 7. When the second switch SW2 of the release switch 2 is turned on, the CPU 1 picks up an image by the image pickup unit 4 based on the detection of the focal length and the measurement of the brightness of the subject performed when the first switch SW1 is turned on. I do.

  The shutter 3 controls blocking / passing of the light beam with respect to the imaging unit 4. The imaging unit 4 captures an image of a subject. The focus detection unit 6 detects the focal distance to the subject. The photometry unit 7 measures the brightness of the subject. The setting change member 8 is operated when changing various settings of the camera. The setting change member 8 includes a menu button 81, an upward button 82, a downward button 83, a set button 84, a left button 85, and a right button 86 (see FIGS. 3 to 8 and FIG. 21). The display state changing member 9 is operated when the display state of the liquid crystal display unit 5 is switched to the reflective display (first display state) or the transmissive display (second display state).

  The liquid crystal display unit 5 (liquid crystal display means) includes a liquid crystal display member 51, a reflection control member 52, and an illumination member 53 (illumination means) inside the apparatus. The liquid crystal display member 51 displays information (including images (still images, moving images), characters, numbers, and identification icons). The reflection control member 52 reflects a light beam from outside light incident from the surface of the liquid crystal display member 51 and re-enters the liquid crystal display member 51, and transmits the light beam irradiated from the illumination member 53 to transmit the liquid crystal display member. It is possible to electrically change (control) the transmission state to be incident on 51. The CPU 1 controls the reflection state / transmission state of the reflection control member 52. The illumination member 53 illuminates the liquid crystal display member 51 from the back side.

  Next, the structure and operation of the liquid crystal display unit 5 will be described with reference to FIG.

  FIG. 2 is a diagram illustrating a configuration example of the liquid crystal display unit 5 of the camera.

  In FIG. 2, the liquid crystal display member 51 of the liquid crystal display unit 5 is joined and electrically connected to the circuit board 56 through a conductive rubber 54 by pressure contact. Thus, an image can be displayed on the liquid crystal display member 51 by outputting a control signal from the CPU 1 mounted on the circuit board 56 to the liquid crystal display member 51. In this figure, the conductive rubber 54 is used to press-contact the circuit board 56, but the flexible printed circuit board is pressed to the liquid crystal display member 51 using the conductive rubber or bonded using an adhesive or the like. Such a method may be used.

  In order to make the image displayed on the liquid crystal display member 51 visible, it is necessary to irradiate light from the back side of the liquid crystal display member 51. As the illumination light source of the liquid crystal display member 51, external light and the illumination member 53 are used.

  A reflection control member 52 is disposed between the liquid crystal display member 51 and the illumination member 53 in order to switch between a light beam from outside light and a light beam emitted from the illumination member 53. The reflection control member 52 is electrically connected by press-contacting the conductive rubber 55 to the circuit board 56, and the state of the reflection control member surface is changed from the reflection state to the transmission state by a control signal output from the CPU 1 of the circuit board 56. Changed to one of the states (switched).

  The reflection state is a state in which a light beam from outside light incident from the upper surface of the liquid crystal display member 51 is reflected by the surface of the reflection control member 52 and is incident on the liquid crystal display member 51 again. The transmissive state is a state in which light emitted from the illumination member 53 is transmitted through the reflection control member 52 and illuminates the liquid crystal display member 51. As a constituent material of the reflection control member 52, liquid crystal or the like is used.

  When external light is used as the illumination light source of the liquid crystal display member 51, the surface state of the reflection control member 52 is set to a reflection state by a control signal from the CPU 1 of the circuit board 56. Along with this, a light beam by external light indicated by an arrow 100 a incident from the upper surface of the liquid crystal display member 51 passes through the liquid crystal display member 51, is reflected by the reflection control member 52, and enters the liquid crystal display member 51 again. Thereby, illumination of the liquid crystal display member 51 by external light can be performed. That is, the display state of the liquid crystal display unit 5 is a reflection type display in which a light beam caused by external light incident on the liquid crystal display member 51 is reflected on the surface of the reflection control member 52 and is incident on the liquid crystal display member 51 again. (First display state).

  When the illumination member 53 is used as the illumination light source of the liquid crystal display member 51, the state of the surface of the reflection control member 52 is set to a transmission state by a control signal from the CPU 1 of the circuit board 56. Accordingly, the light beam indicated by the arrow 100 b irradiated from the illumination member 53 is transmitted through the reflection control member 52 and enters the liquid crystal display member 51. Thereby, the illumination of the liquid crystal display member 51 by the illumination member 53 can be performed. That is, the display state of the liquid crystal display unit 5 is a transmissive display (second display state) in which display is possible when the light beam irradiated from the illumination member 53 passes through the reflection control member 52 and enters the liquid crystal display member 51. )

  Next, the operation of the camera will be described with reference to FIGS. The operation of the camera can be roughly divided into three operations: a shooting preparation operation (pre-shooting operation), a shooting operation, and a post-shooting operation.

  The shooting preparation operation is an operation for setting the camera shooting such as the shutter speed and the lens aperture value when shooting with the camera. By operating the setting change member 8, the optimum one is searched while changing various values such as the shutter speed and the aperture value. The CPU 1 calculates the information set by operating the setting change member 8 and outputs it as a control signal to the shutter 3 and the like.

When the above setting is performed by operating the setting change member 8, the liquid crystal display unit 5 is in the shooting information display state as shown in FIG. The shooting information display state is a state in which the shutter speed, aperture value, sensitivity (ISO) , shooting mode (shutter priority, aperture priority, program, etc.), photometry method, white balance setting, number of shots, and the like are displayed. In the shooting information display state, the display information is displayed using characters and icons.

  In the shooting preparation operation, settings related to camera operation may be performed in addition to settings related to shooting. When setting related to the operation of the camera is performed by operating the setting change member 8, the liquid crystal display unit 5 is in a setting change display state as shown in FIG. In the setting change display state, the user can select the form of the captured image (image recording format (RAW format, JPEG format), JPEG format compression rate), flash exposure compensation to determine the amount of compensation for flash firing, and camera operation. You can set custom functions that can be customized to your liking. The set information is used for changing a setting value in the CPU 1 and changing a setting in another unit.

  The liquid crystal display unit 5 is normally in the shooting information display state shown in FIG. 3 and changes to the setting change display state shown in FIG. 4 when the user presses the menu button 81 shown in FIG. Next, the user presses the up button 82 / down button 83 in FIG. 4 to move the cursor to the menu to be changed. In FIG. 4, the cursor is moved to the “color space” in order to change the “color space”.

  When the user presses the set button 84 in FIG. 4, items that can be selected from the menu appear on the right side of the “color space” as shown in FIG. 5. When the user moves the cursor to an item to be selected with the up button 82 / down button 83 in FIG. 5 (here, item “sRGB”) and presses the set button 84, the item is set. In the setting change display state, the settings relating to the camera operation are displayed using characters and icons in the same manner as the settings relating to the shooting of the camera.

  Next, various specific examples of the correspondence relationship between the operation contents of the camera and the display state of the liquid crystal display unit 5 in the shooting preparation operation, the shooting operation, and the post-shooting operation will be described with reference to FIGS. The following display control is performed by the CPU 1.

  (1) First, FIG. 9 shows a first example of the correspondence relationship between the operation content of the camera and the display state of the liquid crystal display unit 5 in the shooting preparation operation, shooting operation, and post-shooting operation. The left half item in FIG. 9 indicates the operation content of the camera, and the right half item in FIG. 9 indicates the display state in the liquid crystal display unit 5. The same applies to FIGS. 10 to 12 described later.

  In the case of the shooting information display state (S101) in FIG. 3, the content displayed on the liquid crystal display unit 5 is not particularly problematic even if it is somewhat affected by the color or the like. In addition, since the shooting information display state (S101) is always displayed unless the menu button 81 is pressed, the display time is very long. Therefore, if the display state of the liquid crystal display unit 5 is set to the first display state (S111) (reflection display) using external light as the illumination light source of the liquid crystal display member 51, considerable power saving can be achieved. it can.

  Next, in the setting change display state (S102) as shown in FIGS. 4 and 5, the display contents are characters and icons as in the shooting information display state (S101). There are also things that change the brightness and hue of the. In addition, since the setting change display state (S102) is from when the menu button 81 is pressed until the setting is changed, only a relatively short time is displayed. Accordingly, since the power saving effect is small, the display state of the liquid crystal display unit 5 is set to the second display state (S112) (transmissive display) in which the illumination member 53 is used as the illumination light source of the liquid crystal display member 51.

  (2) Next, in the setting change display state (S102), the correspondence relationship between the operation contents of the camera and the display state of the liquid crystal display unit 5 in the shooting preparation operation, the shooting operation, and the post-shooting operation aimed at further power saving. A second example is shown in FIG.

  As described above, when the camera is operated in the setting change display state (S102), since the setting of the liquid crystal display unit 5 may be changed, the second display state (S112) is used. There are also settings that are not related to the settings of the display unit 5. Accordingly, it is only necessary to perform case classification (classification) according to the setting contents even in the setting change display state (S102).

  The setting change display state (S102) is classified as follows. Display setting (S102a) for setting the appearance of the liquid crystal display 5 (for example, color, brightness, contrast, etc.), and turning off the power when the electronic sound is turned on / off or not operated for a certain period of time (auto power off) The camera settings are classified into (S102b). In the case of the display unit setting (S102a), since the appearance of the liquid crystal display unit 5 is related, the second display state (S112) is set. In the case of camera setting (S102b), the first display state (S111) is set. As described above, even in the same setting change display state, the power saving can be further efficiently promoted by finely switching between the first display state and the second display state according to the contents.

  During the photographing operation (S103), since the user is normally looking through the finder 11, the liquid crystal display unit 5 is not seen. Therefore, the liquid crystal display unit 5 may be turned off (S113). Further, it is conceivable that the liquid crystal display unit 5 is turned off when the user looks into the viewfinder 11 as well as during photographing.

  The post-shooting operation is an operation for performing image confirmation and image evaluation. The image confirmation is a process of displaying what the photographed image is displayed on the liquid crystal display unit 5 as shown in the photographed image display state of FIG. 6, and the hue, composition, and focus are matched. It is to check whether or not. The image evaluation refers to viewing the quality of an image by displaying a histogram or the like representing the luminance distribution of the image on the liquid crystal display unit 5 as shown in the image luminance distribution display state of FIG. By displaying the image together with the histogram, a warning is given by blinking a portion where the pixel is saturated (a state where the upper limit of the amount of light stored in one pixel is exceeded). In addition to these, information such as shooting conditions and shooting dates is also displayed.

  Referring to FIG. 9 regarding the display state of the post-shooting operation, in the case of the shot image display (S104), since the image is being evaluated, the image needs to be displayed as faithfully as possible. Therefore, when image evaluation is performed, there is a possibility that erroneous evaluation may be performed when affected by the external light state as in the first display state (S111) (reflection display state). (S112) (transmission display state). In addition, when checking the image, there are a state in which the image just taken immediately after shooting is displayed for a certain period of time and a playback state in which the image taken in the past is checked, both of which require a faithful display, Similarly, it is desirable to enter the second display state (S112).

  In the case of the histogram display state (S105) in which the detailed information of the image is displayed, the second display state seems to be good because the image is also displayed together with the histogram. However, in the second display state, the image is evaluated based on analysis data such as a histogram, and is not evaluated by looking at the image itself. Therefore, even in the first display state (S111), there is no problem and power saving is achieved accordingly.

  As described above, the liquid crystal display unit 5 is switched to the first display state or the second display state in accordance with the operation content of the camera. Here, when the screen is dark without external light, the reflective display (first display state) of the liquid crystal display unit 5 cannot be seen. Further, when the outside light is considerably bright, depending on the luminance of the illumination member 53, it becomes difficult to see in the transmissive display (second display state) of the liquid crystal display unit 5.

  When it is difficult to see in the current display state of the liquid crystal display unit 5, the current display state is controlled to be changed to another display state when the user presses the display state changing member 9. For example, when the display state changing member 9 is pressed when the liquid crystal display unit 5 is in the first display state in a state where the outside light is dark, the liquid crystal display unit 5 enters the second display state, and the illumination member 53 is turned on to display the display. It becomes like this. Thereby, since the user can change the display state of the liquid crystal display unit 5 according to various situations, it is possible to easily cope with a problem in the display state in the external environment or the like while saving power. It can be an easy-to-use camera.

  In addition, when the user changes the display state of the liquid crystal display unit 5, when the user wants to temporarily change the display state such as confirmation of settings or confirmation of shooting conditions, or when he wants to change the display state for a while such as image observation There is. Therefore, when the user continues to press the change display member 9, when the change display member 9 is released, the liquid crystal display unit 5 is returned to the original display state, and the change display member 9 is pressed for a short time (press and release immediately). Controls the liquid crystal display unit 5 to be in a different display state for a certain time or all the time. Thereby, a display function can be raised without increasing the number of operation members.

  (3) Next, FIG. 11 shows a third example of the correspondence relationship between the operation content of the camera and the display state of the liquid crystal display unit 5 in the shooting preparation operation, the shooting operation, and the post-shooting operation.

  In the shooting information display state (S101) of FIG. 3 which is a shooting preparation operation, the liquid crystal display unit 5 is set to the first display state (S111) to save power, and the setting change display state (FIG. 4 and FIG. 5). In the case of S102), the liquid crystal display unit 5 is set to the second display state (S102). Thereby, the display suitable for the purpose is performed. These are controls based on the same concept as in the case of FIGS.

  Next, a moving image display (S106) may be performed on the liquid crystal display unit 5 as shown in FIG. In the case of a digital single-lens reflex camera, the main mirror (movable mirror) 10 is lowered to a position intersecting with the optical axis of the photographing lens 12 as shown in FIG. . When the subject is imaged, the main mirror 10 is flipped up as shown in FIG. 14, the shutter 3 is opened, and the light beam is guided to the imaging unit 4. An optical path is changed by the main mirror 10 for light rays incident through the same photographic lens 12 during subject observation and during photographing. Since no light beam travels to the image pickup unit 4 during the shooting preparation operation, a subject image cannot be obtained as it is.

  Therefore, as a countermeasure described above, there is a camera with a configuration in which the main mirror 10 is a half mirror, or a configuration in which an image sensor for observation is provided in the finder so that a subject image is obtained even when the main mirror 10 is lowered. is there. There is also a camera configured to have a mode that is in the state shown in FIG. 14 during the shooting preparation operation and to obtain a subject image. Further, the compact digital camera shown in FIG. 15 and the video camera shown in FIG. 16 do not have the main mirror 10, and are configured so that light rays from the subject are always incident on the imaging unit 4. When such a configuration is employed, the subject images are displayed on the liquid crystal display unit 5 one by one so that the images can be captured while observing the actual captured state.

  The display state is the moving image display (S106) in the shooting preparation operation. When shooting with moving image display (S106), an image is displayed in order to confirm the composition. Therefore, the display image does not necessarily have to be reproduced faithfully to the hue. In addition, since the moving image display is likely to be displayed for a considerably long time, a considerable amount of power is consumed in the second display state that is a transmissive display. Therefore, in the moving image display (S106) during the shooting preparation operation, the first display state (S111) which is a reflective display is set.

  However, even if there is no problem up to the color of the image, if the image is displayed in the reflective display (first display state), the display image may be dark or bright depending on the brightness of the external light, so that exposure control may be erroneous. . In such a case, a display as shown in FIG.

  (4) Next, FIG. 12 shows a fourth example of the correspondence relationship between the operation content of the camera and the display state of the liquid crystal display unit 5 in the shooting preparation operation, the shooting operation, and the post-shooting operation.

  Even in the moving image display (S106) of the shooting preparation operation, the liquid crystal display unit 5 may be set to the second display state (S112). Further, at a certain timing during the moving image display (for example, when SW1 of the release switch 2 is turned on), the liquid crystal display unit 5 is set to the second display state (S112), and the liquid crystal display unit 5 is normally set to the first display state. (S111). Accordingly, if the liquid crystal display unit 5 is set to the transmissive display (second display state) when the brightness needs to be confirmed, the necessary confirmation can be performed while saving power.

  Next, a configuration in which the liquid crystal display unit 5 is automatically switched between the reflective display (first display state) and the transmissive display (second display state) according to the luminance of external light will be described.

  FIG. 17 shows another configuration example of the liquid crystal display unit of the camera. The liquid crystal display unit 5 ′ in FIG. 17 is provided with an external light luminance detection unit 57 that detects the luminance of external light with respect to the liquid crystal display unit 5 in FIG. 2. The operation of the display part of the liquid crystal display unit 5 'is as described above. The ambient light brightness detection unit 57 detects the brightness around the camera on which the liquid crystal display unit 5 ′ is mounted.

  When the detected luminance is larger than the predetermined value (external light is bright), the liquid crystal display unit 5 ′ is set to the reflective display (first display state), and when the detected luminance is smaller than the predetermined value (external light is dark). The CPU 1 controls the liquid crystal display unit 5 ′ to be a transmissive display (second display state). When external light is sufficiently bright and can be used as illumination light, power consumption can be reduced by using external light and lighting the illumination member 53 of the liquid crystal display unit 5 ′ only when the external light is dark.

  As described above, the liquid crystal display unit 5 is switched between the reflective display and the transmissive display based on a predetermined sequence as shown in FIGS. 9 to 12, or the reflective display and the transmissive display are changed according to the external light luminance. Switching can be done in various ways. The user is not particularly aware of whether the current display form of the liquid crystal display unit 5 is a reflective display or a transmissive display, and cannot determine which of the two is the case. There are many cases.

  From the above, even when the color of the image is changed when the user views the captured image displayed on the liquid crystal display unit 5 or the moving image display image before the image capture, Whether it is due to the display color or the subject color cannot be immediately determined. For this reason, unnecessary troubles such as re-shooting may be required.

  Therefore, as the above countermeasure, an identification icon 13a indicating whether the current display form is a reflective display or a transmissive display with respect to an image displayed on the liquid crystal display unit 5 as shown in FIGS. 13b is displayed simultaneously. Accordingly, the user can determine at a glance whether the liquid crystal display unit 5 is a reflective display or a transmissive display.

  In the case of FIG. 18, the identification icon 13a including the character (symbol) “R” indicating the reflective display indicates that the display form of the liquid crystal display unit 5 is the reflective display (first display state). ing. In the case of FIG. 19, the identification icon 13b including the character (symbol) “T” indicating the transmissive display indicates that the display form of the liquid crystal display unit 5 is the transmissive display (second display state). ing. In the following description, the identification icon 13a and the identification icon 13b are also collectively referred to as the identification icon 13.

  Since the configuration of the identification icon 13a and the identification icon 13b is the same except for the characters (R, T), the identification icon 13a will be described with reference to FIG. The identification icon 13a is composed of test patterns of a plurality of colors (red, green, blue, white). An identification character 13aL indicating a reflection type (R) is arranged at the center of the identification icon 13a. Thereby, the user can discriminate | determine that the display form of the liquid crystal display part 5 is a reflection type display (1st display state) with the identification icon 13a. Similarly, in the case of the identification icon 13b, the user can determine that the display is the transmissive display (second display state) by the identification character indicating the transmissive type (T) (not shown).

13aR, 13aG, 13aB, and 13aW constituting the identification icon 13a are test patterns colored red, green, blue, and white, respectively (indicated by gray shading and white plain color in the drawing). In this embodiment, four types of test pattern colors are used. However, the test pattern color type is arbitrary as long as color matching can be effectively performed. In this embodiment, the test pattern colors are red, green, blue, and white, but any combination of colors is possible. That is, the plurality of colors constituting each test pattern of the identification icons 13a and 13b can be arbitrarily selected from various color groups including red, green, blue, and white.

Since the identification icon 13 is colored with a test pattern, if the user looks at the test pattern, it can be easily recognized whether or not the color currently displayed on the liquid crystal display unit 5 is the correct color. If there is a problem in the display color of the liquid crystal display unit 5, the color of the identification icon 13 is also strange, and if there is no problem in the color of the photographed image, the color of the identification icon 13 is the correct color.

  Since the test pattern of the identification icon 13 is displayed on the liquid crystal display unit 5, the color of the liquid crystal display unit 5 can be adjusted using the test pattern. In the transmissive display (second display state) of the liquid crystal display unit 5, since the liquid crystal display member 51 is illuminated by the color-adjusted illumination member 53, there is no problem with the correct display color. Therefore, if the display color of the reflective display (first display state) of the liquid crystal display unit 5 is matched with the display color of the transmissive display (second display state), both the reflective display and the transmissive display are correct. Become a color.

  The identification icons 13 a and 13 b shown in FIGS. 18 and 19 are both displayed on the liquid crystal display unit 5 at the same position and the same size. The identification icons 13a and 13b are also displayed in the same manner with respect to the color and arrangement of the test pattern. When the user presses the menu button 81 in FIG. 3, the liquid crystal display unit 5 enters the setting change display state in FIG. 4, so the up direction button 82 and the down direction button 83 are operated to move to the display color setting menu. . Further, when the user presses the set button 84, the liquid crystal display unit 5 enters a display state (display color setting state) at the time of color adjustment as shown in FIG.

  The display color setting state of FIG. 21 of the liquid crystal display unit 5 includes, in addition to the reflective display (first display state) of FIG. 18, a set color selection index 13S indicating which color is currently set, and an identification icon 13a. It is displayed near. When the user operates the left button 85 / right button 86, the set color selection index 13S can be moved left and right to change the color to be set.

  When the display color setting state shown in FIG. 21 is entered (when the mode for confirming or adjusting the display color in the first display state of the liquid crystal display unit 5 is entered), the CPU 1 displays on the liquid crystal display unit 5 as follows. To control. In order to match the display color of the reflective display (first display state) and the display color of the transmissive display (second display state), the reflective display (first display state) and the transmission are transmitted to the liquid crystal display unit 5. The mold display (second display state) is alternately displayed for a predetermined time. Since the identification icon is displayed at the same position in the transmissive display and the reflective display, the color difference can be easily determined by alternately displaying the transmissive display and the reflective display.

  Further, when changing the color of the display color of the liquid crystal display unit 5 in the display color setting state of FIG. 21, the user uses the up button 82 / the down button 83. When the user presses the set button 84 when the display color becomes a desired color, the liquid crystal display unit 5 returns from the display color setting state of FIG. 21 to the setting change display state of FIG.

  As described above, according to the present embodiment, the first display state that uses external light as the illumination light source of the liquid crystal display member 51 or the second that uses the illumination member 53 as the illumination light source of the liquid crystal display member 51. An identification icon indicating whether the display state is displayed on the liquid crystal display unit 5 together with the image. Thereby, it becomes possible to easily identify whether the current display state of the liquid crystal display unit 5 is the reflective display (first display state) or the transmissive display (second display state).

  Further, since the identification icon is composed of a plurality of colors (in this embodiment, red, green, blue, and white), it has a color configuration similar to the test pattern of the television, and therefore the display color of the liquid crystal display unit 5 It becomes possible to confirm the state of. Moreover, since the state of the display color of the liquid crystal display unit 5 is easy to understand, the display image can be easily evaluated.

  In addition, since the identification icon is displayed at the same position (or substantially the same position) of the liquid crystal display unit 5 in the first display state and the second display state, the reflection type display (first display state) and the transmission type are displayed. When the display (second display state) is switched, the identification icon appears at the same position. Thereby, there is an advantage that the difference in color between the reflective display (first display state) and the transmissive display (second display state) can be easily understood.

  Further, when the user confirms or adjusts the display color in the reflective display of the liquid crystal display unit 5, the reflective display and the transmissive display are alternately displayed on the liquid crystal display unit 5 for a certain period of time. It is possible to easily match the color tone of the display and the color of the transmissive display.

  In addition, from the above, it is possible to provide an easy-to-use single-lens reflex camera.

[Other embodiments]
In the above embodiment, the case where the electronic apparatus of the present invention is applied to a single-lens reflex camera has been described as an example, but the present invention is not limited to this. The electronic device of the present invention can be applied to other electronic devices other than ordinary cameras, video cameras, and cameras, and it goes without saying that the same effects as those of a single-lens reflex camera can be obtained.

It is a block diagram which shows the structure of the principal part of the camera as an electronic device which concerns on embodiment of this invention. It is a figure which shows the structural example of the liquid crystal display part of a camera. It is a figure which shows the imaging | photography information display state of a liquid crystal display part. It is a figure which shows the setting change display state of a liquid crystal display part. It is a figure which shows the display state at the time of the setting change in the setting change display state of a liquid crystal display part. It is a figure which shows the picked-up image display state of a liquid crystal display part. It is a figure which shows the image luminance distribution display state of a liquid crystal display part. It is a figure which shows the moving image display state of a liquid crystal display part. It is a figure which shows the 1st example of the operation content of a camera, and the display state of a liquid crystal display part. It is a figure which shows the 2nd example of the operation content of a camera, and the display state of a liquid crystal display part. It is a figure which shows the 3rd example of the operation content of a camera, and the display state of a liquid crystal display part. It is a figure which shows the 4th example of the operation content of a camera, and the display state of a liquid crystal display part. It is the schematic which shows the imaging | photography preparation state of a camera. It is the schematic which shows the state at the time of imaging | photography of a camera. It is the schematic which shows the structure of a compact digital camera. It is the schematic which shows the structure of a video camera. It is a figure which shows another structural example of the liquid crystal display part of a camera. It is a figure which shows the reflection type display form of a liquid crystal display part. It is a figure which shows the transmissive display form of a liquid crystal display part. It is a figure which shows the identification icon displayed on a liquid crystal display part. It is a figure which shows the display state at the time of the color adjustment of a liquid crystal display part. It is a figure which shows the structure of the liquid crystal display device which concerns on a prior art example. It is a figure which shows the structural example of the liquid crystal display member of a liquid crystal display device. It is a figure which shows another structural example of the liquid crystal display member of a liquid crystal display device. It is a block diagram which shows the structure of the control system of a liquid crystal display device.

Explanation of symbols

1 CPU
DESCRIPTION OF SYMBOLS 5 Liquid crystal display part 51 Liquid crystal display member 52 Reflection control member 53 Illumination member 54,55 Conductive rubber 56 Circuit board 8 Setting change member 9 Display state change member 13a, 13b Identification icon

Claims (6)

A liquid crystal display means capable of switching between a first display state in which information is displayed using external light and a second display state in which information is displayed using an illumination light source inside the device;
Together with the liquid crystal display means the information for identifying the identification icon whether the second display state or said first display state, the liquid crystal in the first display state and said second display state Control means for displaying at the same position of the display means, and when the display color of the liquid crystal display means in the first display state is confirmed or adjusted, the liquid crystal display means is displayed in the first display state. And a control means for alternately displaying the display according to the second display state and the display according to the second display state . The liquid crystal display means includes
A liquid crystal display member for displaying information;
An illuminating means disposed on the back side of the liquid crystal display member for irradiating light rays;
The liquid crystal display is disposed between the liquid crystal display member and the illuminating means and reflects a light beam caused by external light incident from the surface of the liquid crystal display member, and transmits the light beam emitted from the illuminating means. The electronic apparatus according to claim 1, further comprising: a reflection control member that can be switched to a transmission state that is incident on the member.   The identification icon is composed of different types of symbols and a plurality of colors in the first display state and the second display state, and the plurality of colors constituting the identification icon are red, green, blue, and white. The electronic device according to claim 1, wherein the electronic device is selected from colors to be included. The electronic device according to any one of claims 1 to 3, characterized in that the captured image is a camera having a function to be displayed on the liquid crystal display unit. A single-lens reflex camera having a function of displaying a photographed image on the liquid crystal display means and a function of changing the optical path of a light beam incident through the same photographing lens during observation of the subject and during photographing using a movable mirror The electronic apparatus according to any one of claims 1 to 3 . In a display control method for liquid crystal display means capable of switching between a first display state in which information is displayed using external light and a second display state in which information is displayed using illumination.
Together with the liquid crystal display means the information for identifying the identification icon whether the second display state or said first display state, the liquid crystal in the first display state and said second display state In the control step of displaying at the same position of the display means, when the display color of the liquid crystal display means in the first display state is confirmed or adjusted, the liquid crystal display means is displayed in the first display state. And a control step of alternately displaying the display by the second display state and the display by the second display state for a predetermined time .