JP2005167322A - Camera attached mobile phone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a camera attached mobile phone capable of acting a sub display apparatus required for photographing a "user itself" like a mirror and preparing illumination as required because a lens of a camera is ordinarily located on a rear side, monitor display is made on the sub display apparatus located on the same rear side, and the monitor image is too rough for observation of the face and the appearance when a user uses the camera attached mobile phone to photograph the user itself. <P>SOLUTION: When a camera section 40 is set to a photographing mode, the mobile phone is closed and the lens of the camera is directed to the user itself, the monitor image is displayed on a liquid crystal display panel 101 of the sub display apparatus 100. When the user keeps a mirror change button depressed, a mirror liquid crystal display panel 102 changes from the transparent state into the mirror state and the sub display apparatus 100 acts like the mirror in place of displaying the monitor image. When the sub display apparatus 100 acts like the mirror, automatic illumination at dark is carried out under a predesignated illumination condition, e.g., on the basis of the illuminance detected by an illuminance detection section 42. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to mirroring and illumination of a sub-display of a camera-equipped mobile phone.

The proliferation of mobile phones with cameras is remarkable. The foldable camera phone has a main display for displaying various histories, email messages, images, etc., and a sub-display for displaying notification messages, etc., which is smaller than the main display. It is installed on the surface opposite to the surface with the display.
At the time of shooting, the user first sets the camera to the shooting mode, and releases the shutter while confirming the state of the subject captured by the lens on the monitor image displayed on the main display.

When the user wants to take a picture of himself, the so-called “selfie” usually closes the camera and displays the monitor on the sub-display on the same plane as the camera lens. Can be observed.
Moreover, since the technique which makes a display a mirror state is disclosed (patent document 1, patent document 2), it can also observe by observing the mirror of a main display.
JP 2001-318374 A JP 2001-350157 A

However, the resolution of the sub display is inferior to that of the main display, and even on the main display, it is a little too coarse to observe in detail the face and appearance on the monitor image.
Also, even if you can use the main display as a mirror, if you want to check your face or appearance during “Self-portrait”, open the mobile phone, observe the main display as a mirror, close the camera, and have a lens. It is inconvenient to have to face it again.

In view of these problems in "self-portrait", the present invention is equipped with a camera that allows the user to observe and confirm his / her appearance at any time during camera shooting with the camera lens facing the user himself / herself. An object is to provide a mobile phone.
In addition, lighting is also necessary during self-observation when it is dark. The second object is to provide a camera-equipped mobile phone that can clearly observe and confirm his / her appearance including lighting in the dark at any time.

  In order to solve the above problems, a mobile phone with a camera according to the present invention includes a liquid crystal panel on the same main surface as the lens of the camera, a transparent state attached to the liquid crystal panel and transmitting display light of the liquid crystal panel, A mirror liquid crystal panel having two states: a mirror state that blocks display light and reflects external light incident on a surface opposite to the liquid crystal panel; and a state switching unit that switches between the two states of the mirror liquid crystal panel. .

  With the above configuration, the mirror liquid crystal panel is attached on the liquid crystal panel of the display (hereinafter referred to as “display liquid crystal panel”) on the same main surface as the lens of the camera, so the user takes the camera lens toward himself / herself. In "Self-portrait", the mobile phone can observe itself at any time before shooting, with the surface of the camera lens facing the user and using the sub-display as a mirror.

  The camera-equipped mobile phone further includes an illumination unit that is on the same main surface as the camera lens and performs illumination, and illumination conditions by the illumination unit when the mirror liquid crystal panel is switched from the transparent state to the mirror state. When the storage liquid crystal panel is switched from the transparent state to the mirror state by the storage unit that stores in advance, the reception unit that receives a selection of any of the illumination conditions stored in the storage unit, and the state switching unit, Control means for driving the illumination means according to the selection of the illumination condition received by the reception means.

As a result, when the sub-display is used as a mirror, the user can illuminate with illumination means on the same main surface as the lens and the sub-display under the illumination conditions specified in advance. You can observe yourself clearly.
The camera-equipped mobile phone further includes illuminance detection means for detecting the illuminance of the subject,
One of the illumination conditions is to determine driving according to an external condition. The illumination condition is driven when the illuminance detected by the illuminance detection means is less than a predetermined value.

As a result, automatic lighting that illuminates if it is dark is included in one of the lighting conditions. If you have selected this automatic lighting, the sub display will be a mirror, if it is dark, the lens and sub Since the illumination is performed by the illumination means on the same main surface as the display, the mobile phone can be clearly observed at any time before photographing without changing the orientation of the mobile phone.
The camera-equipped mobile phone is further provided on the same main surface as the camera lens, and includes illumination means for illuminating and illuminance detection means for detecting the illuminance of the subject, and the mirror liquid crystal panel is in a mirror state from a transparent state. When the illuminance is detected, the illumination means is driven only when the illuminance detected by the illuminance detection means is less than a predetermined value.

  As a result, when the user uses the sub display as a mirror, the illumination is performed by the illumination means on the same main surface as the lens and the sub display in the dark. It can be observed clearly.

Hereinafter, an embodiment of a camera-equipped mobile phone 1 according to the present invention will be described with reference to the drawings.
FIG. 1 is a configuration diagram of a camera-equipped cellular phone 1 according to the present embodiment. The camera-equipped mobile phone 1 includes a power supply unit 10, an operation unit 20, a communication unit 30, a camera unit 40, an open / close detection unit 35, an illuminance detection unit 42, an illumination unit 44, an illumination option setting unit 46, a main display 50, and a sub display 100. , The boosting unit 108, the mirroring switch unit 109, and the mirroring control unit 110.

  FIG. 2 is a diagram showing an example of the external appearance of the camera-equipped mobile phone 1. The camera-equipped mobile phone 1 is a foldable type, and FIG. 2 (a) is a perspective view from the rear in a state where the mobile phone is closed (folded). 2 (b) shows a surface (hereinafter referred to as “front”) of the operation unit 20 and the main display when the mobile phone is opened, and FIG. 2 (c) also has a camera lens and a sub-display. A surface (hereinafter referred to as “rear surface”) is shown. 2 are denoted by the same reference numerals as those of the components corresponding to those in FIG.

  The camera-equipped mobile phone 1 includes a lower casing 2 including a keypad of the operation unit 20 and an upper casing 3 including a main display 50, a sub display 100, and the like. In the upper casing 2, the surface including the main display 50 is referred to as a first main surface, and the surface including the sub display and the camera lens is referred to as a second main surface. In addition, these main surfaces point out the surface of the one side of a housing, and include some level | step differences or a curved surface.

With reference to FIG. 1 and FIG. 2, each part which comprises this Embodiment is demonstrated.
The power supply unit 10 is made of, for example, a lithium battery pack and supplies power to each unit of the mobile phone. The rated output voltage of the lithium battery is 3.7V. In addition, 11 of FIG.2 (c) shows the cover of the attachment part of a lithium battery pack.
The operation unit 20 is where a user performs an operation to give an instruction related to the camera-equipped mobile phone 1, and includes various buttons. The buttons include a keypad button arranged on the front of the camera-equipped mobile phone 1 and buttons arranged on the side. The keypad buttons include a shooting mode button 21, a lighting option button 22, and a decision button. 23 and numeric buttons from 0 to 9, etc., and a side button includes a mirror button 24 and a camera shutter button 25.

The shooting mode button 21 sets the camera unit 40 to the shooting mode when pressed by the user, and cancels the shooting mode when pressed again.
The illumination option button 22 sets an illumination option by an illumination option setting menu 301 described later. When the mirror liquid crystal panel 102, which will be described later, is mirrored, an illumination process is performed on the illumination unit 44 according to the illumination option set here.

The decision button 23 sets one of the options presented in the lighting option setting menu 301.
The mirror button 24 mirrors the mirror liquid crystal panel 102 while being pressed when the camera-equipped mobile phone 1 is closed and in the photographing mode.
When the shutter button 25 is pressed while the camera is in the shooting mode, the subject at that time is shot.

The communication unit 30 executes a function of transmitting / receiving a message such as a telephone call or mail, which is a basic function of the camera-equipped mobile phone 1.
The open / close detection unit 35 detects the open / close state of the camera-equipped mobile phone 1 and sends it to the camera unit 40 and the mirroring control unit 110 as an open / close signal. When the camera-equipped mobile phone 1 is in the open state as shown in FIG. 2 (b) or (c), the open / close detection unit 35 sets the open / close signal to ON and closes as shown in FIG. 2 (a). If so, the open / close signal is set off.

The camera unit 40 performs camera shooting. When the user opens the camera-equipped mobile phone 1 and presses the shooting mode button 21 of the operation unit 20, the camera unit 40 enters a shooting mode in which camera shooting is possible. During the photographing mode, the camera unit 40 sets the photographing mode signal indicating that the photographing mode is on to the mirroring control unit 110 and transmits it.
At this time, since the camera unit 40 receives an ON / OFF signal indicating that the camera-equipped mobile phone 1 is open from the open / close detection unit 35, the lens 41 of the camera unit 40 is used with the main display 50 as a camera finder. The captured video is displayed live like a movie. When the camera-equipped mobile phone 1 is closed by the user during the shooting mode, the open / close signal from the open / close detection unit 35 is turned off to indicate the closed state, so the camera unit 40 stops displaying on the main display 50 and The display 100 is similarly displayed as a finder.

The illuminance detection unit 42 detects the illuminance of the subject at any time during the shooting mode, and sends the illuminance to the camera unit 40 and the mirroring control unit 110. Note that the illuminance of the subject is calculated based on the total amount of light received per unit time of a light receiving element group in an imaging unit (not shown) located behind the lens 41 of the camera unit 40.
The illumination unit 44 illuminates the subject when the sub-display 100 is mirrored in a dark place in the camera shooting mode or when shooting is performed by pressing the shutter button 25. The illumination unit 44 includes a pocket light realized by a light emitting element. The illumination unit 44 receives the illumination instruction signal from the mirroring control unit 110 or the camera unit 40, and performs illumination by turning on the pocket light while the signal is on.

The illumination option setting unit 46 inquires of the user about the illumination condition of how to perform illumination when the mirror liquid crystal panel 102 is mirrored.
FIG. 3 is a diagram showing a lighting option setting menu 301 stored in a ROM (Read Only Memory) (not shown). When the user presses the illumination option button 22, the illumination option setting unit 46 reads the menu 301 from the ROM and displays it on the main display 50.

  The user presses the decision button 23 after the numeric button of the item number among the three displayed items of “1. Do not illuminate”, “2. Illuminate”, “3. Auto illumination”. Select desired lighting conditions. Here, for example, when auto illumination of 3 is selected, when the mirror liquid crystal panel 102 is mirrored, illumination is performed if the external environment is dark, and the control thereof will be described later. The illumination option setting unit 46 transmits the option item selected by the user to the mirroring control unit 110 as illumination condition information.

  The main display 50 is a main display unit of the camera-equipped mobile phone 1 and is provided on the first main surface of the upper casing 3 and is composed of a liquid crystal panel for display. When the camera-equipped mobile phone 1 is opened, the main display 50 displays various information, for example, communication history, e-mail messages, live video of the subject captured by the lens 41 of the camera unit 40 in the camera shooting mode, and camera shooting. Display of completed photos and the like is performed.

The sub-display 100 is a sub-display unit of the camera-equipped mobile phone 1, and is a raw image of the subject when the camera is in the shooting mode with the incoming call notification, the mail reception notification, and the camera-equipped mobile phone 1 closed. And the like, and while the mirror button 24 is kept pressed during the shooting mode, it becomes a mirror for the user.
The sub-display 100 is provided on the second main surface of the upper casing 3, and a display liquid crystal panel 101 that displays simple information including characters and images, on the surface side of the second main surface with respect to the display liquid crystal panel 101. The mirror liquid crystal panel 102 is attached. The display liquid crystal panel 101 displays various information to be displayed on the sub display as described above.

  The mirror liquid crystal panel 102 has two types of states, a transparent state and a mirror state. In the transparent state, since the display light of the information displayed on the display liquid crystal panel 101 is transmitted, the user can see the information displayed on the display liquid crystal panel 101 as if the mirror liquid crystal panel 102 does not exist, In the mirror state, the state is the same as that of the mirror, and the light from the display liquid crystal panel 101 is blocked. Thus, mirroring of the sub display 100 for the user is actually mirroring of the mirror liquid crystal panel 102.

The mirror liquid crystal panel 102 is normally in a transparent state, and enters a mirror state when the mirror button 24 is pressed by the user, and returns to the original transparent state when the pressed state is released (the button is released). FIG. 2A shows a state in which the user's face is reflected when the sub-display 100 is mirrored.
4 is a cross-sectional view in the vertical direction perpendicular to the surface of the sub-display 100 when the user is on the left side. FIG. 4 (a) shows the mirror liquid crystal panel 102 in a transparent state, and FIG. 4 (b) shows the mirror. The state in the state is shown.

  In the display liquid crystal panel 101, light 104 (hereinafter referred to as “display light”) for displaying an image including characters and figures is emitted toward the user 105. The mirror liquid crystal panel 102 is placed on the front surface of the display liquid crystal panel 101 and transmits the display light of the display liquid crystal panel 101 so that it can be seen by the user 105, or the display light is blocked and made invisible. This will be briefly described next.

In the mirror liquid crystal panel 102, two polarizing plates 102a and 102b, a glass substrate (not shown), an electrode, and an alignment film are provided inside the polarizing plates, respectively, and a liquid crystal 102c is injected between the alignment films. In this embodiment, an example of a TN (Twisted Nematic) type liquid crystal is shown.
The polarizing plate 102a transmits only linearly polarized light in a certain direction (hereinafter referred to as “first direction”) and absorbs polarized light in a direction orthogonal to the direction (hereinafter referred to as “second direction”). . On the other hand, the polarizing plate 102b transmits only the linearly polarized light in the second direction and reflects the linearly polarized light in the first direction.

FIG. 4A shows a case where no voltage is applied between the polarizing plates 102a and 102b. In this state, the alignment of the major axis of the liquid crystal between the polarizing plates is twisted 90 degrees between the polarizing plates, and therefore the polarization axis of the light passing therethrough is also twisted 90 degrees.
Now, when the external light 103 from the user 105 side enters the polarizing plate 102a, only the light having the polarization axis in the first direction is transmitted through the external light 103, and the light has a polarization axis of 90 degrees in the process of passing through the liquid crystal. Twisting, the polarization axis becomes light in the second direction and reaches the polarizing plate 102b, so that it is also transmitted there and incident on the liquid crystal panel.

On the other hand, when the display light 104 from the display liquid crystal panel 101 enters the polarizing plate 102b, the polarization axis transmits light in the second direction, and the light is twisted 90 degrees in the process of passing through the liquid crystal. Becomes light in the first direction and reaches the polarizing plate 102a, so that it passes therethrough and reaches the user.
Therefore, for the user 105, the mirror liquid crystal panel 102 is transparent, and an image displayed on the display liquid crystal panel 101 can be viewed.

  FIG. 4B shows a case where a predetermined voltage is applied between the polarizing plates 102a and 102b. In this case, since the major axes of the liquid crystal molecules between the polarizing plates are aligned in a direction perpendicular to the electric field, the polarization of the passing light is not changed. When external light 103 from the user side enters the polarizing plate 102a, the polarization axis transmits light in the first direction, and the light remains in the first direction even if it passes through the liquid crystal and enters the polarizing plate 102b. Will reach and be reflected there. Since the reflected light is in the first direction, it passes through the polarizing plate 102 a and reaches the user 105.

  Conversely, when the display light 104 from the display liquid crystal panel 101 enters the polarizing plate 102b, the polarization axis of the light transmits the light in the second direction, and the light passes through the liquid crystal in the second direction. However, the light reaches the polarizing plate 102a and is absorbed there, so that it does not reach the user 105. Thus, for the user 105, the mirror liquid crystal panel 102 functions as a mirror surface that reflects the user, and the image displayed on the display liquid crystal panel 101 cannot be seen.

Next, the boosting unit 108 boosts the output voltage 3.7V of the lithium battery of the power supply unit 10 and outputs the voltage required for mirroring the mirror liquid crystal panel 102, for example, 5V.
The mirror switch unit 109 is composed of a bipolar transistor, and performs mirroring switching of the mirror liquid crystal panel 102 based on a base signal from the mirror control unit 110. The mirror switch unit 109 applies a predetermined voltage to the mirror liquid crystal panel 102 when the base signal is on, mirrors it, and makes it transparent when the base signal is off.

The mirroring control unit 110 controls mirroring of the mirror liquid crystal panel 102 according to a user instruction and stores it internally when the camera-equipped mobile phone 1 is closed and the camera unit is in the shooting mode. It also controls lighting during mirroring according to the lighting conditions.
The mirror control unit 110 receives a shooting mode signal indicating whether the camera unit 40 is in the shooting mode from the camera unit 40. When the camera unit 40 is in the shooting mode, when the mirror button 24 is pressed by the user, the mirroring control unit 110 checks whether the camera-equipped mobile phone 1 is closed by an open / close signal from the open / close detection unit 35, If it is in the closed state, the base signal of the mirror switch 109 is turned on. As a result, a voltage is applied to the mirror liquid crystal panel 102, and the mirror liquid crystal panel 102 changes from the transparent state to the mirror state. This mirror state is maintained as long as the user continues to press the mirror button 24.

When the user stops pressing the mirror button 24, the mirror control unit 110 turns off the base signal of the mirror switch unit 109. As a result, no voltage is applied to the mirror liquid crystal panel 102, and the mirror liquid crystal panel 102 returns from the mirror state to the transparent state.
The mirroring control unit 110 receives the illuminance of the subject from the illuminance detection unit 42 in a timely manner while the camera unit 40 is in the shooting mode, and stores it as the current illuminance inside. Further, when the camera unit 40 is not in the shooting mode, the illumination condition selected by the user is received from the illumination option setting unit 46, and is internally stored in the nonvolatile RAM as the selected illumination condition. Note that “automatic illumination” is initially selected as the illumination condition stored internally. The mirror control unit 110 ignores the mirror button 24 even when the camera-equipped mobile phone 1 is open.

When the mirroring control unit 110 mirrors the mirror liquid crystal panel 102 by outputting an ON base signal to the mirroring switch unit 109, the mirroring control unit 110 simultaneously performs the following processing according to the illumination conditions stored therein.
When the illumination condition is “not illuminated”, the mirroring control unit 110 does not instruct the illumination unit 44 anything. When the illumination condition is “illuminate”, the mirroring control unit 110 turns on and sends an illumination instruction signal to the illumination unit 44. Finally, when the illumination condition is “automatic illumination”, the mirroring control unit 110 determines that the illumination is unnecessary if the current illuminance is less than the predetermined illuminance, and does not instruct the illumination unit 44 for anything. If the current illuminance is greater than or equal to the predetermined illuminance, it is determined that illumination is necessary, and an illumination instruction signal for the illumination unit 44 is turned on and transmitted.

When the user stops pressing the mirror button 24, the mirror control unit 110 sets the illumination command signal to off if the illumination instruction signal to the illumination unit 44 is on.
FIG. 5 is a diagram showing an operation flow related to mirroring and illumination of the sub-display of the camera-equipped cellular phone 1 according to the present embodiment.
The operation of mirroring and the like by the user and the operation of the camera-equipped mobile phone 1 will be described with reference to FIG.

  When the user depresses the lighting option button 22 of the operation unit 20 (S10), the lighting option setting unit 46 presents the lighting option setting menu 301 on the main display 50, and the user displays one of the three lighting options. Ask for a choice. The user presses the number button and the enter button 23 on the operation unit 20 for the desired lighting option item number. The lighting option setting unit 46 sends the lighting option item selected by the user to the mirroring control unit 110, and the mirroring control unit 110 internally stores the received lighting option item as a lighting condition (S11). ).

  When the user depresses the shooting mode button 21 of the operation unit 20 (S12), the camera unit 40 enters a shooting mode in which camera shooting is possible (S15). When the camera-equipped mobile phone 1 is opened and the shooting mode is set, the camera unit 40 uses the main display 50 as a camera finder to display the subject image captured by the lens 41 of the camera unit 40 every moment. When the user closes the camera-equipped mobile phone 1 during the shooting mode, the display on the main display 50 is stopped and the subject is displayed using the sub-display 100 as a viewfinder. During the shooting mode, the camera unit 40 transmits a signal indicating that it is in the shooting mode to the mirroring control unit 110.

When the user opens the camera and presses the shooting mode button 21 again (S18), the camera unit 40 ends the shooting mode (S90).
Next, the camera is photographed by pressing the shutter button 25 (S25).
When the mirror button 24 is pressed by the user (S30), the mirror control unit 110 checks whether the camera-equipped mobile phone 1 is closed by an open / close signal from the open / close detection unit 35 (S33). For example, the mirror liquid crystal panel 102 is mirrored by turning on the base signal of the mirror switch 109 (S35). The mirror state of the mirror liquid crystal panel 102 by the mirroring is maintained while the mirroring button 24 is kept pressed by the user.

  Further, the mirroring control unit 110 mirrors the mirror liquid crystal panel 102 and performs the following process according to the illumination conditions stored therein (S40). When the illumination condition is “not illuminated”, the mirroring control unit 110 does not instruct the illumination unit 44 anything. When the illumination condition is “illuminate”, the mirroring control unit 110 turns on and sends an illumination instruction signal to the illumination unit 44 (S45). Finally, when the illumination condition is “automatic illumination”, the mirroring control unit 110 receives information on the current illuminance from the illuminance detection unit 42, and the illuminance internally stores whether or not the external environment is dark. It is determined whether it is less than the predetermined value (S50). If it is equal to or greater than the predetermined value, it is determined that illumination is not necessary, and nothing is instructed to the illumination unit 44.

If the current illuminance is less than the predetermined illuminance, it is determined that illumination is necessary, and an illumination instruction signal for the illumination unit 44 is turned on and transmitted (S45). If the illumination instruction signal from the mirroring control unit 110 is on, the illumination unit 44 turns on the pocket light.
When the user stops pressing the mirror button 24 (S60), the mirror control unit 110 makes the mirror liquid crystal panel 102 transparent by turning off the base signal of the mirror switch unit 109 (S65). If the illumination instruction signal for the illumination unit 44 is on (S70), it is turned off and the illumination is stopped (S75).

  In the present embodiment, a display liquid crystal panel is used as a display device. However, this may be another device, for example, EL (electroluminescence).

  The camera-equipped cellular phone according to the present invention is used for manufacturing and selling a camera-equipped cellular phone that provides a mirror function with illumination for self-observation at the time of “self-portrait”.

1 is a block diagram of an embodiment of a camera-equipped mobile phone according to the present invention. FIG. It is a figure which shows the front surface and back surface in the closed state of the mobile phone 1 with a camera of the said embodiment, and an open state. It is a figure which shows the illumination option setting menu of the said embodiment. It is a figure which shows the mode of mirroring of the sub display of the said embodiment. It is a flowchart which shows mirroring of the sub display of the said embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mobile phone with a camera 2 Upper housing of a mobile phone with a camera 3 Lower housing of a mobile phone with a camera 10 Power supply portion 11 Lid of a lithium battery pack 20 Operation portion 21 Shooting mode button 22 Illumination option button 23 Decision button 24 Mirror button 25 Shutter Button 30 Communication Unit 35 Open / Close Detection Unit 40 Camera Unit 41 Camera Lens 42 Illuminance Detection Unit 44 Illumination Unit 46 Illumination Option Setting Unit 50 Main Display 100 Sub Display 101 Display Liquid Crystal Panel 102 Mirror Liquid Crystal Panel 105 User 108 Booster 109 Mirror Switch section 110 Mirror control section 301 Lighting option setting menu

Claims (4)

A mobile phone with a camera,
A liquid crystal panel on the same main surface as the camera lens;
A mirror that is attached to the liquid crystal panel and has two states: a transparent state that transmits the display light of the liquid crystal panel and a mirror state that blocks the display light and reflects external light incident on the surface opposite to the liquid crystal panel LCD panel,
A camera-equipped mobile phone comprising: state switching means for switching between two states of the mirror liquid crystal panel. The camera-equipped mobile phone further includes:
Illumination means for illuminating on the same main surface as the camera lens;
Storage means for storing in advance illumination conditions by the illumination means when the mirror liquid crystal panel is switched from the transparent state to the mirror state;
Accepting means for accepting a selection of any of the lighting conditions stored in the storage means from a user;
2. A control unit that drives the illumination unit according to the selection of the illumination condition received by the reception unit when the mirror liquid crystal panel is switched from the transparent state to the mirror state by the state switching unit. Mobile phone with camera. The camera-equipped mobile phone further includes:
With illuminance detection means for detecting the illuminance of the subject,
One of the illumination conditions is to determine driving according to an external condition, and the illuminance detected by the illuminance detection means is an external condition, and the illumination means is driven in that case. Item 3. A mobile phone with a camera according to Item 2. The camera-equipped mobile phone further includes:
An illumination means for illuminating on the same main surface as the lens of the camera;
With illuminance detection means for detecting the illuminance of the subject,
2. The camera-equipped cellular phone according to claim 1, wherein when the mirror liquid crystal panel is switched from the transparent state to the mirror state, the illumination unit is driven only when the illuminance detected by the illuminance detection unit is less than a predetermined value. .

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