JP2000125163A - Electronic camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the electronic camera that can record moving and still pictures and can control an image display means in a more proper way. SOLUTION: The electronic camera is provided with a still picture image processing circuit and a moving picture image processing circuit 6 that selectively process a pbotographed image by a CCD 2, a recoding medium 8 that records image information after the processing, a TFT 10 that displays the photographed image by the CCD 2 or the image recorded in the recoding medium 8, a backlight 15 that lights the TFT 10, a battery 17, a battery voltage detection circuit 19 that detects the voltage of the battery 17, a power consumption detection circuit 20, a TFT luminance measurement circuit 11, a periodic luminance measurement circuit 12 and a central control circuit 16 that controls a display state based on results of the detection by the circuits above. Then in this electronic camera, the central control circuit 16 sets a longer consecutive display time for displaying a moving picture than that for displaying a still picture and reduces the luminance of the backlight 15 so as to save power properly in response to the display of the still picture/moving picture.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic camera, and more particularly, to an electronic camera having image display means for illuminating a display screen with illumination means.

[0002]

2. Description of the Related Art In recent years, a liquid crystal display device has been generally used as a means for visually displaying information in electronic equipment. In particular, a liquid crystal display device such as a TFT liquid crystal is used as a means for displaying an image. Is becoming mainstream.

[0003] Such an image display means has a display screen section in which a large number of fine pixels are two-dimensionally arranged, and an illuminating means for illuminating the display screen section from the back side or the front side. I have.

An example of an electronic apparatus having such an image display means is an electronic camera. However, since an electronic camera is usually carried and used, a battery or the like is used as a power source when going out. Is to be used,
In addition, an external power supply can often be used indoors via an AC adapter or the like.

As described above, in portable electronic devices, since a battery is used as a power source, there is an upper limit on the amount of power that can be used, and it is necessary to save power in order to extend the usable time even a little. Is desired.

[0006] Since the power consumption of the image display means in an electronic device often occupies a relatively large portion, it is useful to appropriately save the power of the image display means.

Various technical means have been proposed for saving power of such image display means.
For example, JP-A-7-64057 discloses that ambient light and LC
A liquid crystal display device that detects both the screen luminance of D and controls the backlight luminance to an appropriate luminance based on the detection results is described.

Japanese Patent Application Laid-Open No. 7-141075 discloses a power saving control of a portable computer for controlling the brightness of a backlight of an LCD display device depending on whether the power source is an internal battery such as a battery or an external power source. A method is described.

By the way, as an electronic camera provided with an image display means, not only one of a still image and a moving image but also both of them can be recorded.

[0010]

In such an electronic camera capable of recording both a moving image and a still image,
When performing recording and playback, since the method differs greatly between moving images and still images, it is not appropriate to apply the above conventional technology as it is and perform uniform power management, and it is not appropriate to Therefore, it is necessary to perform more appropriate power saving.

The present invention has been made in view of the above circumstances, and has as its object to provide an electronic camera capable of controlling image display means more suitable for an electronic camera capable of recording moving images and still images. .

[0012]

In order to achieve the above object, an electronic camera according to a first aspect of the present invention includes an electronic camera, and an image captured by the electronic camera. Recording means for selectively recording on a recording medium in a format, a display screen section for displaying an image taken by the electronic imaging means or an image based on image information recorded on the recording medium, and an illuminating means for illuminating the display screen section An image display means comprising: and a control means for controlling display by the image display means, wherein the control means sets a time period for which display is continued even when no operation is performed on the electronic camera. When displaying a still image recorded on the recording medium, a certain continuous display time is set to be shorter than when displaying a moving image.

The electronic camera according to a second aspect of the present invention is the electronic camera according to the first aspect, further comprising a power supply state detecting means for detecting a state of power supplied to the electronic camera. The continuous display time is changed and controlled according to the result of detection by the power supply state detecting means.

Further, an electronic camera according to a third aspect of the present invention includes:
In the electronic camera according to the second aspect of the present invention, the power supply state detecting means has a voltage detecting means for detecting a voltage of the power supply.

An electronic camera according to a fourth aspect of the present invention is the electronic camera according to the second aspect.
Alternatively, in the electronic camera according to the third aspect, the power supply state detection unit includes a power detection unit that detects power consumption of the entire electronic camera.

According to a fifth aspect of the present invention, there is provided an electronic camera, comprising: an electronic imaging unit; a recording unit for selectively recording an image captured by the electronic imaging unit in a moving image or a still image format on a recording medium; An image display unit comprising: a display screen unit that displays an image captured by an electronic imaging unit or an image based on image information recorded on the recording medium; and an illumination unit that illuminates the display screen unit; Control means for controlling the brightness, wherein the control means controls the brightness of the lighting means to be lower than other display states when displaying a moving image recorded on a recording medium. .

According to a sixth aspect of the invention, there is provided an electronic camera, comprising: an electronic imaging unit; a recording unit for selectively recording an image captured by the electronic imaging unit in a moving image or a still image format on a recording medium; An image display unit comprising: a display screen unit that displays an image captured by an electronic imaging unit or an image based on image information recorded on the recording medium; and an illumination unit that illuminates the display screen unit; Control means for controlling the brightness, the control means, when displaying a captured image by the electronic imaging means as a recording monitor image at the time of recording a moving image, the brightness of the illumination means than the other display state It is controlled to make it dark.

An electronic camera according to a seventh aspect of the present invention is the electronic camera according to the fifth aspect.
Alternatively, in the electronic camera according to the sixth aspect of the present invention, the electronic camera further includes a power supply state detecting unit that detects a state of power supplied to the electronic camera, and the control unit controls the illumination in accordance with a detection result by the power supply state detecting unit. It controls the brightness of the means.

An electronic camera according to an eighth aspect of the present invention is the electronic camera according to the seventh aspect.
In the electronic camera according to the present invention, the power supply state detecting means includes voltage detecting means for detecting a voltage of the power supply.

The electronic camera according to the ninth aspect is the electronic camera according to the seventh aspect.
Alternatively, in the electronic camera according to the eighth aspect, the power supply state detecting means includes power detecting means for detecting power consumption of the entire electronic camera.

An electronic camera according to a tenth aspect of the present invention is the electronic camera according to the fifth or sixth aspect, further comprising external light detecting means for detecting the amount of external light, and wherein the control means includes an external light detecting means. The luminance of the illumination means is controlled in accordance with the detection result by the means.

An electronic camera according to an eleventh aspect of the present invention is the electronic camera according to the tenth aspect, further comprising a light quantity detecting means for detecting the brightness of the image display means, and wherein the control means comprises a light quantity detecting means. The luminance of the illumination means is controlled according to the result.

[0023]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show an embodiment of the present invention. FIG. 1 is a block diagram mainly showing an electric configuration of an electronic camera, FIG. 2 is a flowchart showing an operation of the electronic camera, and FIG. Flowchart showing a subroutine of display system control in the camera,
FIG. 4 is a table showing classifications of control of the continuous display time and the backlight luminance according to the operation state of the electronic camera.

This electronic camera includes a photographing lens system 1 for forming a subject image, and a CCD 2 serving as electronic image pickup means for photoelectrically converting the subject image formed by the photographing lens system 1 and outputting it as an electric signal. An A / D conversion circuit 3 for converting an analog electric signal from the CCD 2 into digital data; and a switch for switching the output destination of the image data from the A / D conversion circuit 3 to a still image or a moving image. 4, a still image processing circuit 5 that is a component of a recording unit that performs still image processing on the image data,
A moving image processing circuit 6 which is a component of the recording means for performing moving image processing on the image data;
A switch 7 that is switched in conjunction with the switch, a recording medium 8 for recording a still image or a moving image output via the switch 7, and a still image processing circuit 5 or a moving image processing circuit 6. A display control circuit 9 constituting control means for controlling display based on the output image data, and a display screen section constituting image display means for visually displaying an image based on the control of the display control circuit 9 The TFT 10, a backlight 15, which is an illuminating means which constitutes an image display means which emits light from the back side to give brightness to make the display of the TFT 10 bright and easy to see, and the illuminating means which controls the light emission of the backlight 15. A backlight control circuit 14 and a TFT luminance measurement unit as a light amount detection unit for measuring the luminance of the TFT 10 illuminated by the backlight 15. A circuit 11, an ambient light measuring circuit 12 which is an external light detecting means for measuring the luminance of the surrounding environment of the electronic camera, output results of the TFT luminance measuring circuit 11 and the ambient luminance measuring circuit 12, and a battery voltage and consumption described later. Backlight required luminance calculation circuit 13 constituting control means for calculating the required luminance of backlight 15 based on the detection result of the power and outputting the calculated luminance to backlight control circuit 14
A battery 17 serving as a power supply of the electronic camera; a power supply circuit 18 for supplying power from the battery 17 to each circuit in the electronic camera; and a power supply state detecting means for detecting a voltage of the battery 17 A battery voltage detection circuit 19 serving as voltage detection means constituting the power supply circuit; a power consumption detection circuit 20 serving as power detection means constituting power supply state detection means detecting power consumption of power supplied by the power supply circuit 18; Power switch (power SW) 2 for inputting an instruction to start power supply to each circuit by the supply circuit 18
1 and 1ST (fast) release switches (1RSW) 22 and 2N which are two-stage switches for recording an image photoelectrically converted by the CCD 2 as a still image.
D (second) release switch (2RSW) 23,
A moving image recording switch (moving image recording SW) 24 for recording an image photoelectrically converted by the CCD 2 as a moving image.
And an EVF mode switch (EV) for switching the mode between observing a subject via the TFT 10 or observing via an optical finder (not shown).
F mode SW) 25 and a TFT monitor on / off switch (TF) for controlling on / off of the TFT 10.
T monitor on / off SW) 26, a recording / reproducing mode for switching between a recording mode for recording an image on the recording medium 8 and a reproducing mode for reproducing an image recorded on the recording medium 8 and displaying the image on the TFT 10. Switch (Record /
Reproduction mode SW) 27, the battery voltage detection circuit 19,
The power consumption detection circuit 20 and the switches 21, 22, 2,
In response to inputs from 3, 24, 25, 26, 27, the CCD 2, switch 4, still image processing circuit 5, moving image processing circuit 6, switch 7, recording medium 8, display control circuit 9, It comprises a central control circuit 16 which is a control means for controlling each circuit including the required luminance calculation circuit 13 and the power supply circuit 18.

Next, the operation of the electronic camera will be described with reference to FIG.

When the operation is started, it is first determined whether or not the power switch 21 has been turned on (step S).
1) If it is off, it waits until it is turned on, and when it is turned on, it performs a battery check to detect the remaining battery level of the battery 17 (step S2). The detection of the remaining battery level is performed by, for example, the battery voltage detection circuit 19 described above.
Is performed by taking into account the voltage drop based on the internal resistance of the battery 17 calculated from the current consumption and the like detected by the power consumption detection circuit 20 to the voltage detected by the power consumption detection circuit 20.

The recording / reproducing mode switch 2
It is determined whether or not the apparatus is in the recording mode by detecting the state of step 7 (step S3). If the apparatus is in the recording mode, the EVF mode switch 25 is further detected and observation is performed by the TFT 10. It is determined whether or not it is in the state (step S4).

Here, when the EVF mode switch 25 is on, the CCD 2 is turned on to output the image to the display control circuit 9 (step S5).
5) The TFT 10 is turned on (step S6), and the backlight 15 is turned on (step S6).
7) Display the image.

Subsequently, the TFT 10 and the backlight 1
(Step S)
8). FIG. 3 shows the contents of the display system control.

When the display control subroutine is entered, the brightness of the TFT 10 illuminated by the backlight 15 is measured by the TFT brightness measurement circuit 11 (step S41). The ambient brightness of the electronic camera is measured (step S42).

The voltage of the battery 17 is detected by the battery voltage detecting circuit 19 (step S4).
3) The power supply circuit 1 is controlled by the power consumption detection circuit 20.
8 is detected (step S44).

Based on the respective results thus detected, the light emission luminance of the backlight 15 is set, and the off time until the display by the TFT 10 and the backlight 15 is turned off is set (step S45). The continuous display time is set by the off time.

That is, even if the same power is supplied to the backlight 15, its light emitting state changes due to aging or the like.
Therefore, since the luminance detected via the TFT 10 also changes, by measuring this, if a decrease due to aging of the luminance is observed, the power supply is corrected so as to compensate for the decrease. , Stable TF for a long time
T brightness is obtained.

In order to detect a change in the luminance of the backlight 15, not the luminance obtained through the TFT 10, but
The brightness of the backlight 15 itself may be detected. However, if the brightness of the TFT 10 is detected as described above, the image displayed on the TFT 10 can be determined to be a bright scene image or a dark scene image. There is an advantage that it is possible to perform corresponding control and the like.

Further, by measuring the ambient brightness, control is performed so as not to unnecessarily increase the brightness of the backlight 15 within a range where an easy-to-view display suitable for the environment is obtained, thereby reducing power consumption. I'm trying.

Further, the battery 1 is detected by detecting the battery voltage.
The state of No. 7 is grasped, and the power consumption is controlled accordingly. Specifically, when the remaining amount of the battery 17 becomes low, the life of the battery 17 is extended by lowering the brightness of the backlight 15.

Also, the battery 17 has a relatively remarkable tendency to decrease in voltage as the current value increases, depending on the magnitude of the internal resistance and the like. Therefore, by detecting the power consumption, the backlight 15 is adjusted to the current power consumption.
By controlling the brightness of the battery, it is possible to prevent the power consumption from becoming too large and the battery voltage from lowering.

When the control of the display system is completed, a 30-second timer is started, and it is determined whether or not the timer has reached 30 seconds (step S9). This 30
The second timer is for performing the display control described above every 30 seconds. That is, it detects the TFT luminance, the ambient luminance, the battery voltage, the power consumption, and the like every 30 seconds, and performs new control in accordance with the state at that time.

Therefore, when the time has reached 30 seconds, the display system is controlled by the processing shown in FIG. 3 (step S10). When the time has not reached 30 seconds, the next step S10 is performed without performing this step S10. Proceed to step.

Next, the 1ST release switch 22 and the 2ND release switch 23 are detected to determine whether or not to record a still image (step S11).

If none of them is turned on, it is determined whether or not to record a moving image by detecting the moving image recording switch 24 (step S12).
If it is not on, for example, it is determined whether the off timer set to one minute has reached the one minute (step S1).
3) If not reached, return to step S9 and repeat the above processing.

On the other hand, when the off timer reaches one minute in step S13, the TFT 10 and the backlight 1
5 is turned off (step S14).

If it is detected in step S11 that the 1ST release switch 22 and the 2ND release switch 23 are turned on, the central control circuit 16 switches the switches 4 and 7 to a still image. Switching to the processing circuit 5 side, the image by the CCD 2 is processed for a still image and recorded on the recording medium 8 (step S18).

Further, in response to the state of recording the still image, the off-time is shortened and set to, for example, 5 seconds (step S19), and the recorded image is displayed on the TFT 10 for confirmation. (Step S20).

Then, the control waits until the OFF timer reaches 5 seconds (step S21), and when the OFF timer reaches the OFF timer, the display is turned off (step S22).

On the other hand, if the moving image recording switch 24 is turned on in step S12, the brightness of the backlight 15 is reduced in consideration of the fact that power is continuously consumed in recording the moving image. With (Step S1
5), the off time for turning off the display according to the continuous moving image display accompanying the moving image recording is set to ∞ (step S1).
6) The switches 4 and 7 are switched to the moving image processing circuit 6 to start moving image recording in which the image by the CCD 2 is processed for moving image and recorded on the recording medium 8 (step S17).

When the EVF mode switch 25 is turned off in step S4, a moving image / still image recording mode in which recording is performed by observation using an optical finder is started. The still image recording is performed by detecting the 1ST release switch 22 and the 2ND release switch 23, or the moving image recording is performed by detecting the moving image recording switch 24 (step S37).

If it is determined in step S3 that the current mode is not the recording mode, the reproduction mode is entered (step S2).
3).

When the reproduction mode is entered, the display system is controlled by the processing shown in FIG. 3 (step S24), and an image file to be reproduced and displayed is specified (step S25).

When a file is designated, it is determined whether the file is a file relating to a moving image or a file relating to a still image based on header information of the file (step S2).
6) If the file is a file related to a still image, the still image is displayed (step S27), and the display of the still image is continued until the OFF timer reaches, for example, 10 seconds (step S2).
8) When the time reaches 10 seconds, the display of the still image is turned off (step S29).

On the other hand, if it is determined in step S26 that the image file to be reproduced is related to a moving image, the moving image is displayed (step S3).
0), the luminance of the backlight 15 is reduced so as to be a setting suitable for displaying a continuous moving image (step S3).
1) Further, the off-time is further lengthened and set to, for example, 2 minutes (step S32).

Then, a 30 second timer is started,
As in step S9, it is determined whether 30 seconds have elapsed (step S33). When 30 seconds have elapsed, the display system is controlled (step S34), and a state corresponding to each detection result at that time is obtained. The adaptation is performed, and if 30 seconds have not elapsed, the process proceeds to the next step without performing step S34.

Next, it is determined whether or not the off timer has reached 2 minutes (step S35). If not, the process returns to step S33 to repeat the above-described processing. , The moving image display is turned off (step S36).

As described above, the basic control of the display system is set in accordance with the TFT luminance, the ambient luminance, the battery voltage, the power consumption, and the like. Performing classification according to whether it is in, and in addition, performing classification according to whether the operation of playback or recording is related to moving images or still images,
Fine continuous display time and backlight brightness are controlled.

FIG. 4 summarizes such control classifications.
It is.

As shown in FIG. 4, when a monitor image is observed, the main purpose is image observation. Therefore, when displaying either a moving image or a still image, the continuous display time is extended and the It is set so that the light brightness is increased.

At the time of the recording operation, in the case of a moving image, the continuous display time is set to ∞ to make the display continuous, and the backlight luminance is set to be low in order to suppress the consumption of the battery 17 by the continuous display. It has become. On the other hand, in the case of a still image, the continuous display time is set to be short, and since the battery consumption does not become a problem by shortening the display time, the backlight luminance is set to be bright.

At the time of the reproducing operation, the continuous display time is set to be longer in the case of a moving image, and the backlight luminance is set to be lower in order to suppress the consumption of the battery 17 in accordance with the longer operation time. On the other hand, in the case of a still image, the continuous display time is set to be short and the backlight luminance is set to be bright as in the recording operation.

The continuous display time of the moving image is set to be longer during the reproduction operation, whereas the continuous display time during recording operation is set to ∞.
This is because, if only the display stops without permission during the moving image recording operation, the user may mistakenly think that the recording operation itself has stopped.

In this way, even when no operation is performed on the electronic camera, the continuous display time and the backlight luminance are appropriately changed according to whether to display a moving image or a still image. It goes without saying that, for example, when the moving image recording switch 24 is operated and turned off during the moving image recording operation, the display is also turned off.

In the above description, the case where the TFT 10 is illuminated from the back side by the backlight 15 has been described. However, the present invention is not limited to this, and when the display screen section is made of, for example, a reflection type liquid crystal. Alternatively, a front light that illuminates from the front side may be applied as the illumination means.

The display means is not limited to the TFT liquid crystal, but may be a DSTN liquid crystal, and is not limited to the use of liquid crystal.

In addition, when the OFF timer reaches a predetermined time and the display is turned off, the TFT 10 and the backlight 15 are turned off in the above description. However, turning off only one of them will provide a certain power saving effect. It is possible.

According to such an embodiment, when playing back an image recorded on a recording medium, the continuous display time of a still image is made shorter than that of a moving image, so that the displayed image is a still image or a moving image. Therefore, more appropriate control can be performed in accordance with whether the power consumption is lower, and power saving can be performed without impairing usability.

Further, by detecting the battery voltage and the power consumption,
More effective power saving can be achieved by performing control suitable for the remaining battery level and the usage state of the battery.

In general, moving images are displayed continuously for a longer period of time than still images. Therefore, by reducing the brightness of the backlight at the time of playing back a moving image or at the time of monitoring, a high effect can be obtained. You can save power.

Further, by measuring the ambient luminance and controlling the luminance of the backlight according to the result, it is possible to save power as much as possible within a range where display is easy to see.

Then, T illuminated by the backlight
By measuring the luminance of the FT, it is possible to control the backlight, whose luminance changes with time, to an optimal state. Further, since the luminance of the TFT is measured, it is possible to perform appropriate control according to the display content such as whether the displayed image is an image of a dark scene or an image of a bright scene.

In this way, it is possible to control image display means more suitable for an electronic camera capable of recording moving images and still images.

[0070]

As described above, according to the electronic camera of the first aspect of the present invention, the continuous display time is shorter when displaying a still image than when displaying a moving image. Control of image display means more suitable for an electronic camera capable of recording the image.

According to the electronic camera of the second aspect of the present invention, the same effects as those of the first aspect can be obtained, and more appropriate control can be performed according to the state of the power supply.

Further, according to the electronic camera of the third aspect of the present invention, the same effect as that of the second aspect of the invention can be obtained, and more appropriate control according to the voltage of the power supply can be performed.

According to the electronic camera of the fourth aspect of the present invention, the same effects as those of the second or third aspect can be obtained, and more appropriate control can be performed according to the power consumption of the entire electronic camera. Can be.

According to the electronic camera of the present invention, when displaying a moving image recorded on a recording medium, the brightness of the illuminating means is reduced, thereby saving power according to a continuous moving image display. This makes it possible to control image display means more suitable for an electronic camera capable of recording moving images and still images.

According to the electronic camera of the present invention, when a recording monitor image is displayed at the time of recording a moving image, the brightness of the illuminating means is reduced to save power according to the continuous moving image display. This makes it possible to control image display means more suitable for an electronic camera capable of recording moving images and still images.

According to the electronic camera of the present invention, the same effects as those of the fifth or sixth aspect are obtained, and the luminance of the illumination means is appropriately controlled according to the state of the power supply. As a result, effective power saving can be performed.

According to the electronic camera of the present invention according to the eighth aspect, the same effect as the invention according to the seventh aspect is obtained, and the brightness of the illuminating means is appropriately controlled according to the voltage of the power supply, so that the electronic camera is effective. Power savings.

According to the ninth aspect of the present invention, the same effect as that of the seventh or eighth aspect can be obtained, and the luminance of the lighting means can be appropriately adjusted according to the power consumption of the entire electronic camera. , Effective power saving can be performed.

According to the tenth aspect of the present invention, the same effects as those of the fifth or sixth aspect can be obtained, and the luminance of the illumination means can be more appropriately adjusted according to the amount of external light. Control can be performed.

According to the eleventh aspect of the present invention, the same effect as that of the tenth aspect of the present invention can be obtained, and the luminance of the illumination means can be more appropriately controlled in accordance with the luminance of the image display means. be able to.

[Brief description of the drawings]

FIG. 1 is a block diagram mainly showing an electric configuration of an electronic camera according to an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the electronic camera of the embodiment.

FIG. 3 is a flowchart showing a subroutine of display system control in the electronic camera of the embodiment.

FIG. 4 is a table showing classifications of control of continuous display time and backlight luminance according to an operation state of the electronic camera of the embodiment.

[Explanation of symbols]

2 ... CCD (electronic image pickup means) 5 ... Image processing circuit for still image (recording means) 6 ... Image processing circuit for moving image (recording means) 8 ... Recording medium 9 ... Display control circuit (control means) 10 ... TFT (display) Screen part, image display means) 11 ... TFT luminance measurement circuit (light amount detection means) 12 ... Ambient luminance measurement circuit (external light detection means) 13 ... Backlight required luminance calculation circuit (control means) 14 ... Backlight control circuit (illumination) Means, image display means 15 ... backlight (illumination means, image display means) 16 ... central control circuit (control means) 17 ... battery (power supply) 19 ... battery voltage detection circuit (voltage detection means, power supply state detection means) 20 ... Power consumption detection circuit (power detection means, power supply state detection means)

Claims (11)

[Claims] 1. An electronic image capturing means, a recording means for selectively recording an image captured by the electronic image capturing means in a moving image or a still image format on a recording medium, and an image captured by the electronic image capturing means Alternatively, an image display unit including a display screen unit for displaying an image based on the image information recorded on the recording medium, an illumination unit for illuminating the display screen unit, and control for controlling display by the image display unit Means, and the control means, even when no operation is performed on the electronic camera, a continuous display time that is a time to continue the display,
When displaying a still image recorded on the recording medium,
An electronic camera characterized by being set shorter than when displaying moving images. 2. A power supply state detecting means for detecting a state of a power supply supplied to the electronic camera, wherein the control means changes the continuous display time according to a detection result by the power supply state detecting means. The electronic camera according to claim 1, wherein the electronic camera is controlled. 3. The electronic camera according to claim 2, wherein said power supply state detection means includes voltage detection means for detecting a voltage of said power supply. 4. The electronic camera according to claim 2, wherein said power supply state detecting means includes power detecting means for detecting power consumption of the entire electronic camera. 5. An electronic imaging unit, a recording unit for selectively recording an image captured by the electronic imaging unit in a moving image or a still image format on a recording medium, and an image captured by the electronic imaging unit Alternatively, an image display unit including a display screen unit that displays an image based on image information recorded on the recording medium, and an illumination unit that illuminates the display screen unit; and a control unit that controls the luminance of the illumination unit. And an electronic camera, wherein the control means controls the luminance of the illumination means to be lower than other display states when displaying a moving image recorded on a recording medium. 6. An electronic imaging unit, a recording unit for selectively recording an image captured by the electronic imaging unit in a moving image or a still image format on a recording medium, and an image captured by the electronic imaging unit Alternatively, an image display unit including a display screen unit that displays an image based on image information recorded on the recording medium, and an illumination unit that illuminates the display screen unit; and a control unit that controls the luminance of the illumination unit. And wherein the control means displays an image captured by the electronic imaging means as a recording monitor image when recording a moving image.
An electronic camera, wherein the luminance of the illumination means is controlled to be lower than other display states. 7. A power supply state detecting means for detecting a state of a power supply supplied to the electronic camera, wherein the control means controls a luminance of the lighting means according to a detection result by the power supply state detecting means. The electronic camera according to claim 5, wherein the electronic camera is operated. 8. The electronic camera according to claim 7, wherein said power supply state detection means includes voltage detection means for detecting a voltage of said power supply. 9. The electronic camera according to claim 7, wherein said power supply state detecting means includes power detecting means for detecting power consumption of the electronic camera as a whole. 10. An external light detecting means for detecting the amount of external light, wherein the control means controls the brightness of the illuminating means according to a detection result by the external light detecting means. The electronic camera according to claim 5, wherein: 11. The apparatus according to claim 1, further comprising a light quantity detecting means for detecting the brightness of the image display means, wherein the control means controls the brightness of the lighting means in accordance with a detection result by the light quantity detecting means. The electronic camera according to claim 10.