JP2000352724A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device which can be used as a substitute for an easy-handling hand mirror without any problems about its design by using the information display panel attached to a portable appliance and changing the surface of the information display panel into a mirror when the display is not used. SOLUTION: The display element as such device is formed by integrating and laminating, from the bottom layer, a mirror part 21, diffusion LCD 22 and display LCD 23 as the uppermost layer. In the normal display mode, information is displayed in the display LCD 23 and the diffusion type LCD 22 is kept in a diffusion state (white state). In a mirror mode, the display LCD 23 and diffusion LCD 22 are kept in a transmission state to reflect light on the mirror part 21 to allow the display to function as a mirror. The mirror mode and information-off display mode which does not display information can be selected when the power for the appliances mounted on the display is turned off. For the information-off display mode, the diffusion LCD 22 is kept in a diffusion state to show a white cloudiness.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device mounted on a portable device, and more particularly, to a display device which functions as a mirror by mirroring a display panel when a display on the display device is not used.

[0002]

2. Description of the Related Art Conventionally, a liquid crystal (hereinafter, referred to as an LCD) is often used as an information display panel of a camera, an MD player, a mobile phone, or the like. For example, in the case of a camera, the number of frames shot, the setting state of various modes, the remaining energy of the battery, and the like are displayed. In the case of a mobile phone, the telephone number of the sender, the destination of the mail, the identification number of the received mail, and the like are displayed.

[0003] Further, among cameras, there is known a camera in which a mirror material that reflects like a mirror is attached to the front surface. By installing a mirror on the front, if you are going to take your own face, etc. by yourself, you can check your facial expression and composition etc. by mirroring it, so you can use this mirror as a substitute for a hand mirror on the go You can also use it.

[0004]

As described above, by attaching a mirror to a portable device such as a camera, one portable device can be used as a hand mirror.

[0005] However, portable devices are generally small in size and light in weight because of emphasis on portability, and the space for attaching a mirror is very small.

[0006] Further, since a space that does not hinder the operation of the portable device is targeted, a mirror may be stuck to a strange place, resulting in an unnatural form in design.

Therefore, the present invention uses an information display panel provided in a portable device and mirrors the surface of the information display panel when the display is not used, so that the information display panel can be used as a substitute for an easy-to-use hand mirror. It is an object of the present invention to provide a display device which does not hinder the display.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a first display liquid crystal means having an information display section, and is provided so as to overlap with the first display liquid crystal means. A second display liquid crystal means which can be switched to a transmission / non-transmission state, and a reflection means which is disposed below or below the second display liquid crystal means and has a function as a mirror;
Control means for controlling a display state of the first display liquid crystal means and a transmission / non-transmission state of the second display liquid crystal means; and an information display function and a mirror function are selected according to the control means. A display device comprising: a switching unit that enables a switch setting to be performed.

A first display liquid crystal device having an information display portion, the information display portion being switchable between a display / non-display state, and a first display liquid crystal device are disposed so as to overlap with the first display liquid crystal device. A second display liquid crystal means, which is switchable between a transmissive / non-passing state, the first display liquid crystal means in a display state, and the second display liquid crystal means in a non-passing state. A first state and a second state in which the first display liquid crystal unit is set to a non-display state and the second display liquid crystal unit is set to a transmission state.
And a switching means for switching between the two states. Further, the second liquid crystal means is composed of a diffusion type liquid crystal.

In the display device having the above configuration, in the normal display mode, information is displayed by the first display liquid crystal means,
The second display liquid crystal unit is set to a non-transmission state. With this setting, the second display liquid crystal unit in the non-transmissive state becomes cloudy due to diffusion, and the displayed information becomes visible.

In the mirror mode, when the power of the mounted device is off, the first display liquid crystal means and the second display liquid crystal means are made to be in the transmission state by the switching means, and the light incident from the outside is changed. The light is reflected by the reflection means to function as a mirror. Further, when the information is not functioning as a mirror, the second display liquid crystal means is switched to the non-passing state so that no information is displayed and the second display liquid crystal means is not displayed.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a conceptual configuration example of a display device according to the present invention. The display device includes an operation unit 1 on which switches (SW) and the like are arranged, a control unit 2 for controlling and processing like a microcomputer, and a display element 3 including a liquid crystal element such as an LCD serving as an information display unit.
The display element 3 further includes a mirror unit 4 for mirroring the entire display screen, and an information display unit 5 for displaying information and the like.

Based on the operation of the operation unit 1, the control unit 2 controls the mirror unit 4 and the information display unit 5 to select a display state between the mirror mode and the information display mode. This operation unit 1
A dedicated mirror mode switch may be provided as the switch, or a release switch may be used as described later.

Therefore, when the display device is mounted on a portable device, the display element 3 is provided with a sufficiently wide screen to form a wide mirror region and have a function as a hand mirror. Display device is made.

Further, in the display device of the present invention, when the display device is mounted on a portable device, when a power supply of the portable device is in an off state or a state where there is no need to display information, a selection switch (release SW or mode This is an example in which the mirror mode is set by the operation of SW).

FIG. 2 shows, as a first embodiment, a configuration example in which the display device is mounted on a camera. FIG. 2A shows the configuration as viewed from the back of the camera,
FIG. 1B shows a view from the top of the camera.

On the back of the camera 11 of this embodiment, a screen 12 of the display device 3 of the display device is arranged, and various switches (SW), for example, rewind SW1
3, mode selection SW 14, date imprint change SW 15,
A panorama switching SW 16 and the like are arranged. These switches are covered with a rubber cover from the surface, and are disposed so as to penetrate from the body surface. The switches are insensitive to normal contact, and are turned on by being pushed. A finder 19 is disposed above the screen 12, and a release SW 17 is provided on the upper surface of the camera, and a barrier 1 which functions as a cover of a taking lens barrel and a power switch on the front.
8 are provided.

In the present embodiment, the release switch 17 is also used as a switch for switching the display state between the mirror mode and the information display mode of the operation unit 1.

For example, when the power is turned off, that is, when the barrier 18 is "closed", the release switch 17 is pressed to switch to either the mirror mode or the information display mode standby state (display off state).

The operation of the display device mounted on such a camera will be described with reference to the flowchart shown in FIG.

First, it is determined whether or not the barrier 18 is "open", that is, whether or not the power switch is turned on (step S1). If it is "open" (YES), the power is turned on and the initialization is performed. Then, the collapsing lens barrel is extended and set at a predetermined position (step S2). Then, normal photographing information is displayed on the screen 12 of the display element 3 (step S3). As this display, the number of shot frames, date, remaining battery power, currently set shooting mode, and the like are displayed.

Next, the distance measurement / photometry, exposure, and film winding are performed by a normal camera operation associated with photographing, for example, by pressing the release SW 17 (step S4). After the camera operation is completed, it is determined whether or not the barrier 18 has changed to the "open" state (step S5). If there is no change (YES), it is determined that shooting is to be continued, and the process returns to step S3. However, if the barrier 18 has changed (NO), the process returns to step S1 to determine whether the barrier 18 is “open”.

If it is determined in step S1 that the barrier 18 is not "open" (N
O), retract the lens barrel that has been extended and store it,
It is determined whether or not the release SW 17 has been operated (step S6).

Then, it is determined whether or not the release SW 17 has been operated (step S7). If the operation has been performed (YES), it is determined whether or not the current display mode is the mirror mode. (Step S8). Here, if the mode is not the mirror mode (NO), the mirror mode is set to mirror the screen of the display element 3 (step S).
9). However, if the mirror mode is already set (YES), the mode is switched from the mirror mode to the information display mode standby state (display off state) (step S1).
0).

Next, in the determination in step S7,
If the release SW 17 has not been operated (NO), and after the mode switching process in steps S9 and S10 has been completed, it is determined whether the “open” state of the barrier 18 has changed (step S11). If there is a change in the barrier 18 in this determination, the process returns to step S1. If there is no change (NO), the process returns to step S7.
Continue processing.

According to the present embodiment, when the barrier 18 is closed, that is, when the power is turned off, the release SW used also as a switch for switching between the mirror mode and the information display mode is used.
By operating the button 17, the mirror state and the display-off state can be switched. In the present embodiment, the power is turned on and off by opening and closing the barrier 18. However, the same applies to a camera having no barrier and having a power switch separately provided on the camera body. Applicable to However, in this case, the on / off state of the power is directly detected instead of determining the on / off state of the power by detecting the open / close state of the barrier.

Next, as a second embodiment, an example of a configuration in which a display device is mounted on a camera will be described. The configuration of the present embodiment is the same as that of the above-described first embodiment, except that a mirror mode switch is provided to switch between the mirror mode and the information display mode, and that the release switch is not shared. ing.

In this embodiment, when the barrier 18 is in the "open" state, the mirror mode switch is operated to switch the display state between the mirror mode and the information display mode.

The operation of the display device mounted on the camera will be described with reference to the flowchart shown in FIG.

First, it is determined whether or not the barrier 18 is "open", ie, whether or not the power switch is turned on (step S21). The lens is retracted and stored in the camera body (step S22). At this time, the screen 1 of the display element 3
2 is also in the display off state. Thereafter, it is detected whether or not the barrier 18 has changed, that is, whether or not the “open” operation has been performed (step S23). If there is an “open” operation (YES),
The process returns to step S21.

In the determination in step S21, the barrier 18
Is in the "open" state (YES), the power is turned on and initialized, and the collapsible lens barrel is extended and set to a predetermined position (step S24). Then, normal shooting information is displayed on the screen 12 of the display element 3 (step S25). In this display, the number of shot frames, date, remaining battery power, set shooting mode, and the like are displayed.

Next, it is determined whether or not the mirror mode switch has been operated (step S26). If the mirror mode switch is operated in this determination (YES), it is determined whether or not the current display mode is the mirror mode (step S).
27). Here, if the mode is not the mirror mode (NO), the screen 12 of the display element 3 is set to the mirror mode for mirroring (step S28). However, if the mirror mode has already been set (YES), the normal photographing information is displayed (step S29).

Thereafter, whether the barrier 18 has changed or not
That is, it is detected whether or not a “close” operation has been performed (step S
30). If the "close" operation has been performed (YES), the process returns to step S21. If the "close" operation has not been performed (NO), the process returns to step S26.

On the other hand, if it is determined in step S26 that the mirror mode switch has not been operated (NO), it is determined whether a switch other than the mirror mode switch, for example, an operation switch such as a switch for setting a photographing mode has been operated. Is determined (step S31). If it is determined that the operation switch has been operated (YES), normal shooting information is displayed (step S32).

Next, the distance measurement / photometry, exposure, and film winding are performed by a normal camera operation accompanying the photographing, for example, by pressing the release SW 17 (step S33). After the camera operation is completed, the flow shifts to step S30.

If it is determined in step S31 that the operation switch is not operated (NO), the process proceeds to step S31.
Move to 30.

According to the present embodiment, the barrier 18 is opened.
In this state, when the power is turned on, the mirror mode and the display off state can be switched by operating the mirror mode switch. By combining the first embodiment and the present embodiment, even when the barrier 18 is in the “closed” state, the mirror state and the display-off state can be switched by operating the mirror mode SW.

Next, as a third embodiment, an example of a configuration in which a display device is mounted on a camera will be described. The configuration of the present embodiment is the same as that of the second embodiment described above, except that the mirror mode is set for an arbitrary set time after the mirror mode SW is operated, and the information display mode is set after the set time elapses. Switching is performed.

The operation of the display device mounted on the camera will be described with reference to the flowchart shown in FIG. The detailed description of the same processing as the routine of FIG. 4 is omitted.

First, it is determined whether or not the barrier 18 is "open". If the barrier 18 is "closed" (NO), the protruding photographic lens is retracted and stored in the camera body, and the display element is opened. After the screen 12 of No. 3 is turned off, the presence or absence of a change in the state of the barrier 18 is detected (steps S41 to S4).
3). On the other hand, if it is determined in step S41 that the barrier 18 is in the "open" state (YES), the lens barrel is extended and set to a predetermined position, switched to the information display mode, and normal photographing information is displayed. (Step S
41 to S45). The operation so far is the same as the operation in steps S21 to S25 in FIG. 4 described above.

Next, it is determined whether or not the mirror mode switch has been operated (step S26). If the mirror mode switch is operated in this determination (YES), a mirror mode timer (not shown) provided in the control unit 2 starts counting up to, for example, a set time of 5 minutes (step S47). At this start, the screen 12 of the display element 3 is mirrored by setting the mirror mode (step S4).
8).

Thereafter, it is detected whether or not the state of the barrier 18 has changed, that is, whether or not the "close" operation has been performed (step S49). If there is a “close” operation (YE
S), and return to step S41. On the other hand, if the "close" operation has not been performed (NO), the process returns to step S46.

On the other hand, if it is determined in step S46 that the mirror mode switch has not been operated (NO), it is determined whether the mirror mode timer started in step S47 has passed the set time of 5 minutes (step S47). Step S5
0) If five minutes have elapsed (YES), the mode is switched from the mirror mode to the information display mode, and normal shooting information is displayed (step S51). However, if the time has not reached 5 minutes (NO), it is determined whether or not a switch other than the mirror mode SW, for example, an operation switch such as a switch for setting a shooting mode has been operated (step S5).
2). If it is determined that the operation switch has been operated (YES), the mode is switched to the information display mode, and normal shooting information is displayed (step S53).

Next, the distance measurement / photometry, exposure, and film winding are performed by the normal camera operation accompanying the photographing, for example, when the release SW 17 is pressed (step S54). After the camera operation is completed, the process proceeds to step S49. .
If it is determined in step S52 that the operation switch has not been operated (NO), the process proceeds to step S49.
Move to

According to the present embodiment, the barrier 18 is opened.
In this state, when the power is turned on, the mirror mode is set to the mirror state for a set time by operating the mirror mode SW, and after the set time, the display state is switched to the normal photographing information display state.

Next, a specific configuration example of the display element 3 of the display device will be described as a fourth embodiment. FIG. 6 shows an example of the structure of the display element 3.

This display element is provided with a mirror section 21 and a diffusion type liquid crystal panel (L) from the bottom layer (inside when mounted on equipment).
CD) section 22 and a display liquid crystal panel (LCD) on the top layer
The parts 23 are laminated and integrally formed.

The display LCD unit 23 is, for example, a so-called TN-LCD (Twisted Nematic LC) in which nematic liquid crystals are arranged between two glass substrates by twisting at 90 °.
D) or GH-LCD (guest host LCD)
A variety of information is displayed in black, which is shaded by applying a voltage to a region to be displayed.

The diffusion type LCD unit 22 is, for example, a PN
-An LCD (polymer type LCD), which can switch between transmission and diffusion (white turbidity).

When the liquid crystal element 3 having such a configuration displays normal photographing information in the above-described information display mode, the display LCD section 23 sets the number of photographed frames, date, remaining battery power, and the like. The display information of the shooting mode or the like is displayed, and the diffusion type LCD unit 22 is set in a diffusion state (functioning as a diffusion plate).

According to this display method, the diffusion type LCD unit 22
Since the light is clouded in a diffused state, the light does not reach the mirror unit 21 and the display is similar to a general LCD display.

In the case of the mirror mode, the display LCD unit 23 and the diffusion type LCD unit 22 are in a transmissive state, light reaches the mirror unit 21 and is reflected there to function as a mirror.

When the barrier 18 is closed, that is, when the power is turned off, the display element 3 is turned off. In the display-off state, the display LCD unit 23 is in a transmission state, and the diffusion LCD unit 22 is in a diffusion state. There is an annoying surface when it is always in a mirror state to make it cloudy by diffusion,
It is cloudy and calm in design.

Next, a specific configuration example of the display element 3 of the display device will be described as a fifth embodiment. FIG. 7 shows an example of the structure of the display element 3.

This display element is a diffusion type LCD whose rear surface is mirror-processed, for example, a PN-LCD (polymer type LCD) unit 2
4 and a display liquid crystal panel (LCD) unit 23 are laminated and integrally formed.

The display LCD unit 23 is composed of, for example, the TN-LCD or the GH-LCD, and displays various information in black or the like, which is light-shielded by applying a voltage to an area to be displayed. The diffusion type LCD unit 24 is switchable between transmission and diffusion, and the mirror surface 2 formed on the back surface when transparent.
5 functions as a mirror. This mirror surface 25 is L
A metal having high reflectance such as aluminum (Al) is formed on a glass material of a CD by using a thin film forming technique such as vapor deposition or CVD.

This configuration is a configuration in which a mirror and a diffusion type LCD are integrated in the display element according to the fourth embodiment described above.

In the liquid crystal element 3 having such a configuration, when displaying the above-described normal photographing information, various kinds of photographing information are displayed on the display LCD unit 23, and the diffusion type LCD unit 24 is set in the diffusion state. . With this display method, the diffusion type LCD unit 2
Since 4 is clouded in a diffused state, light does not reach the mirror surface 25 and the display is similar to a general LCD display.

In the mirror mode, the display LCD unit 23 and the diffusion LCD unit 24 are in a transmissive state, and light reaches a mirror surface 25 formed on the back surface, where the light is reflected and functions as a mirror.

When the barrier 18 is closed, that is, when the power is turned off, the display element 3 is turned off. In the display-off state, the display LCD unit 23 is in a transmission state and the diffusion LCD 24 is in a diffusion state. This is clouded and calms down in design as in the above-described embodiment.

Next, as a sixth embodiment, a specific configuration example of the display element 3 of the display device will be described. FIG. 8 shows an example of the structure of the display element 3.

The display element 3 is a diffusion type LCD (negative type LCD) unit 26, which is in a diffusion state as a whole.
The information section (numerals and marks) 28 to be displayed is made transparent.
For example, it consists of a PN-LCD (polymer type LCD),
It is possible to switch between transmission and diffusion, and it functions as a mirror by the mirror surface 27 formed on the back surface when it is transparent. The mirror surface 27 is formed in the same manner as the mirror surface 25.

In the liquid crystal element having such a configuration, when displaying the above-described normal photographing information, the diffusion type LCD unit 26
As shown in FIG. 8 (a), when illuminated with colored light from the side through the information section 28, photographing information of numbers and marks colored in the color of the colored light is displayed. Light sources of this colored light include light emitting diode (LED) light and EL light.

In the case of the mirror mode, the diffusion type LCD unit 26 is made to be in a transmission state, and the light reaches the mirror surface 27 formed on the back surface, where it is reflected to function as a mirror.

When the power supply is turned off, the diffusion type LCD unit 26 is set in the diffusion state to make it cloudy and the display is turned off in a calm design.

FIG. 8C shows a configuration example in which the display element of this embodiment is mounted on a camera. This is an example of mounting on the back side of a camera, in which a colored transparent plate 29 is mounted around the screen of the display element. In this example, external light such as natural light is used without providing a light source such as a light emitting diode.

As shown in FIG. 8D, this transparent plate 2 is scattered inside when external light enters, and is colored from the side of the information section 28 of the display element as shown in FIG. Light is incident. Of course, in consideration of use in a dark place, a light source such as an LED or an EL may be provided.

According to this embodiment, a thinner display element is provided while having the same function as the display element of the above-described embodiment.

Next, as a seventh embodiment, a specific configuration example of the display element 3 of the display device will be described. FIG. 9 shows an example of the structure of the display element 3.

This display element 3 has a TN equivalent to that described above.
-LCD or GH-LCD (Guest Host LC
D) Display LCD unit 30 comprising D)
An LCD capable of switching between reflection and transmission (hereinafter, referred to as an LCD) on the unit 30
(Referred to as mirror LCD) section 31.

The mirror LCD section 31 is a liquid crystal element that switches between a state of reflecting light and a state of transmitting light by application of a voltage. For example, “NATURE / Vol 392 / 2A”
There is a liquid crystal display element described in "PRIL1998".

When the liquid crystal element having such a configuration is used to display the above-described ordinary photographing information, the display LCD section 30 is set to the information display state by the display element 3 having such a configuration.
The mirror LCD unit 31 is set in the transmission state. Due to this state, the information displayed on the display LCD unit 30 is transferred to the mirror LC
It is displayed through the D section 31.

In the case of the mirror mode, the mirror LCD unit 31 is set to the mirror state. At this time, the display LCD unit 30
Since the information is light-shielded, it may be in any display state.

When the power is turned off, the mirror LCD unit 31 is set to the transmissive state, and the display of the display LCD unit 30 is set to the off state.

Next, FIG. 10 shows an eighth embodiment of the present invention.
An example in which the display element of each of the above-described embodiments is mounted on a portable wireless telephone will be shown and described. This portable radio telephone 41
Is the main unit A on which the operation buttons 42 and the microphone 43 are arranged.
And the main body B on which the above-described display element 3 and the speaker 44 are arranged are hinged and folded in two. The main body B is provided with an antenna 45 to be extended and used.

The portable radio telephone 41 has an antenna 45
Is used as a switch for switching between a mirror state and a display off state, thereby setting a state in which the antenna 45 is housed in the main body as a mirror mode,
Mirror the screen of the display element. In addition, antenna 4
Instead of using 5 as a mode changeover switch, a dedicated mirror mode switch may be provided to switch between the mirror state and the display off state by operation. This display switching operation is described with reference to FIG.
Is similar to the routine of the flowchart shown in FIG.

As described above, according to the embodiment, a dedicated changeover switch or a changeover switch which is also used for other functions can be mounted on a portable device, and necessary information is displayed at the time of use, and non-use is performed. At times, the display screen is mirrored by operation, so that it can be used as a hand mirror.

Although the above embodiments have been described, the present invention includes the following inventions.

(1) a display liquid crystal means having an information display portion, wherein the information display portion can be switched to a display / non-display state;
Mirror means which is provided so as to be superimposed on the substantially same display area as the information display part of the display liquid crystal means, and which can be in a mirror state; control means for switching and controlling the states of the display means and the mirror means; A display device comprising: an operation unit that generates a switching signal to the control unit.

(2) In a display device having a mirror means and a liquid crystal display means in the same display area, the function of the mirror means or the liquid crystal means is selectively selected according to the operation of the operation means and the operation means. And a control means for operating the display device.

(3) In the display device according to the above mode (2), the liquid crystal display means has a positive type liquid crystal device and a diffusion type liquid crystal device.
A first state in which information is displayed by the positive type liquid crystal device and the diffusion type liquid crystal device is set in a diffusion state;
Switching means for switching between the positive liquid crystal device and the second state in which the diffusion type liquid crystal device is in a transmission state;
Is provided.

(4) In the display device described in the above item (2), the liquid crystal display means has a positive type liquid crystal device, the mirror means has a diffusion type liquid crystal device, and the operation of the operation means is performed. A state in which the state of the diffusion-type liquid crystal device is controlled to enable information display by the positive-type liquid crystal, and a state in which the state of the diffusion-type liquid crystal device is in the transmission state to be in the mirror state. And switching means for switching between the two states.

(5) In the display device described in the above items (3) and (4), the diffusion type liquid crystal device integrally has a mirror portion whose rear surface is processed into a mirror. (6) In the display device described in (2), the mirror unit includes a mirror type liquid crystal device capable of switching between a reflection state and a transmission state, and the liquid crystal display unit includes a positive type liquid crystal device. And a second state in which the mirror type liquid crystal device is set in a transmission state to display information by the positive type liquid crystal device in accordance with an operation of the operation means, and a second state in which the mirror type liquid crystal device is set in a mirror state. Switching means for switching between the state and the state.

(7) Mirror means and LC in the same display area
In a display device including the D means, an operation means and a control means are provided, and the control means is operated in accordance with an operation of the operation means,
A display device, wherein the function of the mirror means or the LCD means is selectively operated.

(8) In the display device described in the above item (7), the LCD means includes a positive type LCD and a diffusion type LCD.
A first state in which the positive type LCD displays information in accordance with the operation of the operation means and the diffusion type LCD is in a diffusion state, and both the positive type LCD and the diffusion type LCD The state is switched between the transmission state and the second state.

(9) In the display device described in the above item (7), the LCD means comprises a diffusion type LCD and a mirror means, and the diffusion type LCD is operated according to an operation of the operation means.
To switch between the first state in which information is displayed and the second state in which the diffusion type LCD is in a transmission state.

(10) In the display device described in the above items (8) and (9), the mirror means is obtained by processing the rear surface of the diffusion type LCD into a mirror.

(11) In the display device described in the above item (7), the mirror means is a mirror type LCD capable of switching between reflection and transmission, and the LCD means is a positive L-type LCD.
A first state in which the mirror-type LCD is in a transmissive state in response to an operation of the operation means and information is displayed on the positive LCD; and a second state in which the mirror-type LCD is in a mirror state. Switch.

(12) A display device mounted on a camera, wherein the display device is configured by laminating a display liquid crystal means for displaying information and a reflection means functioning as a mirror. A display element for displaying an information-off state or functioning as a mirror by switching the transmission / non-transmission state of the means; and a selection switch for selecting either the information display state or the mirror state. A display device, wherein the display is set to an information off display state or a mirror state by operating the selection switch when the power is off.

(13) The display device described in (12) above is set to a mirror state for an arbitrary period after operating the selection switch, and is returned to the information-off display state after the arbitrary period. Timekeeping means for

[0091]

As described in detail above, according to the present invention, the information display panel provided in the portable device is used, and when the display is not used, the surface of the information display panel is mirrored, so that it is easy to use. It is possible to provide a display device that can be used as a substitute for a hand mirror and does not hinder the design.

[Brief description of the drawings]

FIG. 1 is a diagram showing a conceptual configuration example of a display device according to the present invention.

FIG. 2 is a diagram illustrating a configuration example of a display device mounted on a camera as a first embodiment.

FIG. 3 is a flowchart for describing a display operation in the display device of the first embodiment.

FIG. 4 is a flowchart illustrating a display operation in a display device according to a second embodiment.

FIG. 5 is a flowchart illustrating a display operation in a display device according to a third embodiment.

FIG. 6 is a diagram illustrating a configuration example of a display element in a display device according to a fourth embodiment.

FIG. 7 is a diagram illustrating a configuration example of a display element in a display device according to a fifth embodiment.

FIG. 8 is a diagram illustrating a configuration example of a display element in a display device according to a sixth embodiment.

FIG. 9 is a diagram illustrating a configuration example of a display element in a display device according to a seventh embodiment.

FIG. 10 is a diagram showing a configuration example in which a display device of the present invention is mounted on a mobile wireless telephone as an eighth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Operation part 2 ... Control part 3 ... Display element 4 ... Mirror part 5 ... Information display part 11 ... Camera 12 ... Screen 13 ... Rewind SW 14 ... Mode selection SW 15 ... Date imprint change SW 16 ... Panorama switching SW 17 ... Release SW 18 ... Barrier 19 ... Finder

Claims (3)

[Claims] 1. A first display liquid crystal means having an information display portion, and a second display liquid crystal means provided so as to be overlapped with the first display liquid crystal means and capable of switching between a transmission / non-transmission state. A liquid crystal display means, disposed on the bottom or bottom of the second liquid crystal display means,
Reflecting means having a function as a mirror; control means for controlling a display state of the first display liquid crystal means and a transmission / non-transmission state of the second display liquid crystal means; And a switching means for selectively switching and setting an information display function and a mirror function. A first display liquid crystal unit having an information display unit and capable of switching the information display unit to a display / non-display state; and a first display liquid crystal unit disposed so as to overlap the first display liquid crystal unit. A second display liquid crystal means, which is switchable between a transmissive / non-passing state, the first display liquid crystal means in a display state, and the second display liquid crystal means in a non-passing state. Switching means for switching between a first state and a second state in which the first display liquid crystal means is in a non-display state and the second display liquid crystal means is in a transmission state. Display device. 3. The display device according to claim 2, wherein said second liquid crystal means is formed of a diffusion type liquid crystal.