JP2002152348A - Portable information terminal equipment, method for displaying and controlling video and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an increase in a wasteful power consumption in a portable information terminal equipment having a communicating function and to allow a video to be easily observed. SOLUTION: The portable information terminal equipment comprises a direct- view display unit 110 and a virtual image display unit 107 provided in a portable information terminal equipment body 101. The unit 110 and the unit 107 are switched in response to a using state of the terminal equipment. That is, when simple character information such as a telephone number of the like is displayed, the unit 110 having a small size and a low resolution is used to suppress its power consumption. Only when information having a high resolution such as image information or the like is necessary, the unit 107 having the high resolution is used. The unit 107 is provided in a flip unit 105, which can be foldably stored in the body 101. Only when the unit 105 is drawn and stood, a power source of the unit 107 is turned on.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable information terminal device, a video display control method, and a storage medium, and more particularly to a portable information terminal device having a radio telephone function and having information input means and a video display unit. The present invention relates to a video display control method applied to the portable information terminal device, and a storage medium storing a program for executing the video display control method.

[0002]

2. Description of the Related Art In recent years, with the development of technology for miniaturization and high integration, a PDA (Personal Digit
al Assistant) have been put into practical use. Also, with the development of communication technology, this portable information terminal device is not limited to personal information devices,
It has come to have a function as a mobile phone and a function as an information terminal device for obtaining various contents by connecting to the Internet or the like.

FIG. 8 is a diagram showing the appearance of a conventional portable information terminal device having such a communication function.

In FIG. 1, a portable information terminal device 701 has a microphone 70 as an audio input unit when used as a portable telephone.
2. It has a speaker 703 and an antenna 704 of an audio output unit. Further, a keypad 705 for inputting character information such as a telephone number and a URL (Uniform Resource Locator) and a video display unit 706 are provided at the center of the portable information terminal device 701. The video display unit 706 can display character information such as a telephone number and the name of the other party, and can display a schedule or an address book as a function of the PDA. Also, when connected to the Internet, etc.
A two-dimensional image can be displayed.

When the operator uses the portable information terminal device 701 as a portable telephone, he / she can make a telephone call by inputting a telephone number using the numeric keypad of the keypad 705. The video display unit 706 displays the telephone number dialed and the name of the other party. When using such a telephone, the operator holds the portable information terminal device 701 in his hand and
And the speaker 703 close to the mouth and the ear, respectively, to talk with the other party.

When the portable information terminal device 701 is used as a PDA, the operator holds the portable information terminal device 701 as shown in FIG. 9 and holds the schedule and address displayed on the video display unit 706. Check information such as books.

[0007] Further, when confirming information as a PDA while using as a telephone, a receiver with microphone 707 is required.
Is connected to the portable information terminal device 701, the operator wears the receiver with microphone 707, and performs voice communication as a telephone via the receiver with microphone 707.

[0008]

However, the above-mentioned conventional portable information terminal equipment is limited in size, weight, and the like from the viewpoint of portability. Therefore, the size of the video display unit cannot be increased, and a large amount of information cannot be displayed on the video display unit as it is. Therefore, for example, Japanese Patent Application Laid-Open
As disclosed in JP-A-32379, a high-resolution image display element is used for the image display unit, and high-density information is displayed on the image display unit.

However, in a conventional portable information terminal device using such a high-resolution image display device, the high-resolution image display device operates even when it operates as a mobile phone which does not necessarily require high-density information display. are doing.
In general, the power consumption of a video display element increases as the number of pixels to be displayed increases. Therefore, in the portable information terminal device using the above high-resolution video display device, useless power consumption occurs when operating as a mobile phone, and the usable time of the portable information terminal device using a battery is not required. There is a problem that it is shortened.

A portable communication transceiver using a small virtual image display as a display unit to reduce the power consumption of the display unit is disclosed in, for example, Japanese Patent Application Laid-Open No. 7-235892. In this portable communication transceiver, the small virtual image display includes an image generating device that provides a real image to a fixed optical system, and the fixed optical system generates a virtual image that can be seen by a user through an opening or a lens. The fixed optics is configured to magnify the entire real image from the image generation device, so that the virtual image visible from the aperture becomes a complete frame or image, and appears very large,
The user can easily identify the displayed information.

However, in this portable communication transceiver, the image is inverted upside down when the user holds the apparatus in the right hand and looks into the small virtual image display, and when the user holds the apparatus in the left hand and looks into the small virtual image display. You cannot get easy-to-view images.

Also, when the difference between the ambient brightness and the brightness of the virtual image display is large, the user may feel dazzled or may not be able to see the image well because it is dark, and it may be difficult to view the image. There was a problem.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has been made to prevent a wasteful increase in power consumption in a portable information terminal device having a communication function, and to make it easy to view an image. It is an object to provide a portable information terminal device, a video display control method, and a storage medium.

[0014]

According to the first aspect of the present invention, there is provided a portable information terminal device having a wireless telephone function, an information input unit and a video display unit. The image display unit includes at least two image display units that are not operated at the same time.

According to the eleventh aspect of the present invention, in addition to having a wireless telephone function, it has an information input unit and a video display unit, and the video display unit is provided with at least two video display units that are not operated simultaneously. At least one of the image display means has an enlargement optical system, and a housing of the image display means having the enlargement optical system has a configuration stored in a portable information terminal device main body. A video display control method applied to a portable information terminal device having a configuration rotatably connected to a terminal device main body via at least one point, wherein a housing of the video display means having the magnifying optical system is provided. A determining step of determining whether or not the mobile information terminal device is stored in the main body;
An operation control step of selecting one of the at least two video display means and operating only the selected video display means in accordance with a result of the determination in the determination step.

Further, according to the invention of claim 16,
It has a radio telephone function and has an information input means and an image display unit. The image display unit comprises at least two image display units which are not operated at the same time, and at least one of the image display units is a magnifying optical system. The housing of the image display means having the magnifying optical system has a configuration to be stored in the main body of the portable information terminal device, and rotates through at least one point with respect to the main body of the portable information terminal device. A video display control method applied to a portable information terminal device having a configuration capable of being connected as a program,
In a computer-readable storage medium,
The image display control method includes: a determination step of determining whether a housing of the image display unit having the magnifying optical system is in a state stored in the portable information terminal device main body; and a determination result by the determination step. Depending on said at least 2
An operation control step of selecting one of the two image display means and operating only the selected image display means.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 is a perspective view showing a portable information terminal device according to the present invention, and FIG.
1 shows a state in which the flip portion is stored in the portable information terminal device main body, and FIG. 1B shows a state in which the flip portion is rotated from the storage position of the portable information terminal device main body.

In the figure, reference numeral 101 denotes a portable information terminal device main body, 1
02 is a microphone as an audio input unit, and 103 is a speaker as an audio output device. An antenna 104 exchanges radio waves with the wireless base station.

Reference numeral 105 denotes a flip portion.
Keypad 106 for entering telephone numbers, URLs, etc.
And a virtual image display unit 107 is provided on the back surface side. The flip unit 105 is connected to the portable information terminal device main body 101 via a universal joint 108. When viewing the image displayed on the virtual image display unit 107, the user can observe the image on the virtual image display unit 107 by turning and flipping the flip unit 105 in a direction that is easy for the user to see.

Reference numeral 109 denotes a hook portion, and the flip portion 10
The flip unit 105 is fixed to the portable information terminal device main body 101 when 5 is stored in the portable information terminal device main body 101. A switch 114 for detecting whether or not the flip portion 105 is raised is provided inside the switch.

FIG. 2 is a diagram showing a cross section of the flip portion 105. The virtual image display unit 107 has a built-in magnifying optical system for realizing high resolution.

In the figure, reference numeral 111 denotes a two-dimensional image display element.
In the present embodiment, a liquid crystal display element LCD is used. 1
Reference numeral 12 denotes a backlight for illuminating the two-dimensional image display device (LCD) 111. Reference numeral 113 denotes a free-form surface prism, and reference numeral 115 denotes a cushion member that prevents dust from entering the opening of the virtual image display unit 107. In the present embodiment, the entry of dust is prevented by sandwiching the cushion member 115, but instead of this, the flip portion 1
A window made of a transparent member may be attached to the housing 05 to have a sealed structure.

An image displayed on a two-dimensional image display device (LCD) 111 is illuminated by a backlight 112, expanded while passing through a free-form surface prism 113, and guided to an eyeball 116 of a user.

The two-dimensional image display device (LCD) 111 used for the virtual image display unit 107 uses a color display and a high-resolution display device (for example, LCD) in order to provide a large amount of information to the user. It is desirable.

Returning to FIG. 1, the portable information terminal equipment main body 10
1, in addition to the virtual image display unit 107 of the flip unit 105,
Direct-view display unit 1 composed of a low-resolution monochrome LCD
10 is provided. When the portable information terminal device is used as a normal portable telephone, the information to be displayed is only character information such as a telephone number.
Use 0. Low-resolution monochrome viewing direct-view display unit 1
No. 10 consumes less power and can extend the battery life.

FIG. 3 is a flowchart showing a procedure of an operation control process of the virtual image display unit 107 and the direct view display unit 110 in the present embodiment. This processing is executed in a control device (not shown) included in the portable information terminal device main body 101.

When the user turns on the power of the portable information terminal device (S301), the direct-view display unit 110 is first turned on (supplied with power) to be operated (S302). Next, it is detected based on the output of the switch 114 whether or not the flip unit 105 has been caused (S303). Flip part 105
Is not caused, the virtual image display unit 107 is turned off (power supply is cut off) and is not operated (S304), and the direct-view display unit 110 is turned on and operated (S305). This step S305 is performed at step S305 as described later.
This is effective when a negative (N) is obtained in step S303 after executing steps 306 and S307.

When the user simply uses the portable information terminal device as a portable telephone, the user keeps the flip unit 105 in the portable information terminal device main body 101 (that is, denies (N) in step S303). The telephone number of the other party is dialed from the keypad 106 on the surface of the flip unit 105. At this time, the telephone number of the other party is displayed on the direct-view display unit 110, and the user can check the information. Thus, when the portable information terminal device is simply used as a mobile phone, an image can be displayed only on the direct-view display unit 110 that consumes less power, and power consumption can be suppressed.

The user causes the flip portion 105,
When the portable information terminal device is used as a portable information terminal (when affirmative (Y) in step S303), the direct-view display unit 110 is not turned off and activated (S306), and the virtual image display unit 107 is turned on and activated (S306). S304).

As a result, power is supplied to the two-dimensional image display element 111 and the backlight 112, and a high-resolution color image display is performed by the virtual image display unit 107, and a large amount of information is displayed.

(Second Embodiment) Next, a second embodiment will be described.

The configuration of the second embodiment is basically similar to that of the first embodiment.
Since the configuration is the same as that of the first embodiment, in the description of the second embodiment, the configuration of the first embodiment will be used, and only different components will be described.

FIG. 4 is a diagram showing a situation in which a user obtains video information using the portable information terminal device according to the second embodiment.

In the second embodiment, the flip portion 105
A posture sensor 211 for detecting the posture of the virtual image display unit 107 is provided inside the housing. As the attitude sensor 211, an attitude sensor using a beam formed by a semiconductor etching technique (for example, disclosed in Japanese Patent Application Laid-Open No. 6-347473) is used.
In addition, as the attitude sensor 211, another type of attitude sensor such as a sensor using a ball or a sensor having a floating body floating in a liquid may be used.

FIG. 5 is a flowchart showing a procedure of an operation control process of the virtual image display unit 107 and the direct view display unit 110 according to the second embodiment. This processing is executed in a control device (not shown) included in the portable information terminal device main body 101.

When the user turns on the power of the portable information terminal device (S501), first, the direct-view display unit 110 is turned on and activated (S502). Next, it is detected based on the output of the switch 114 whether or not the flip portion 105 is caused (S503). If the flip unit 105 has been caused, the direct-view display unit 110 is turned off and not activated (S504), and the attitude sensor 211 is turned on (S50).
5), the attitude of the virtual image display unit 107 is detected (S50).
6). Thereafter, the virtual image display unit 107 is turned on to operate (S507), and the virtual image display unit 107 is output according to the detection orientation of the virtual image display unit 107 output by the orientation sensor 211.
The display direction of the virtual image displayed in is rotated (S508),
Thereby, the virtual image displayed on the virtual image display unit 107 can be always displayed in the correct direction. That is, whether the portable information terminal device is held by the right hand or the left hand, the virtual image display unit 107 is held in either state.
Can be in an upright state.

On the other hand, in step S503, the flip unit 1
If it is determined that the image 05 has not been caused, the virtual image display unit 107 is turned off and not activated (S509), the attitude sensor 211 is also turned off and not activated (S510), and only the direct view display unit 110 is turned on. It is activated (S511). As described above, when the portable information terminal device is simply used as a mobile phone, only the direct-view display unit 110 consuming less power is operated, and the virtual image display unit 107 and the attitude sensor 211 are not operated, thereby suppressing power consumption. Can be.

(Third Embodiment) Next, a third embodiment will be described.

The configuration of the third embodiment is basically similar to that of the first embodiment.
Therefore, in the description of the third embodiment, the configuration of the first embodiment will be used, and only different components will be described.

FIG. 6 is a diagram showing how a user obtains video information using the portable information terminal device according to the third embodiment.

One eye of the user observes the video information displayed on the virtual image display unit 107, and the other eye looks at the surroundings. At this time, if the brightness difference between the images captured by both eyes is large, the user may feel the image displayed on the virtual image display unit 107 dazzling, or may be too dark to see the image well.

For example, when the portable information terminal device is used in a sunny outdoors or the like, the iris of the eye observing the surroundings is reduced. At this time, the aperture of the eye observing the image of the virtual image display unit 107 on the opposite side is also narrowed in conjunction with it. As a result, the image on the virtual image display unit 107 may be dark and difficult to see.

Conversely, when the image of the virtual image display unit 107 is observed in a dark room, the aperture of the user's eye is changed to the virtual image display unit 107.
There is a possibility that the surrounding state is dark and not easily seen, or conversely, the image displayed on the virtual image display unit 107 is very dazzling.

As described above, the aperture of the human eye tends to have the same aperture for both eyes, and the aperture of the other eye is also determined by the luminance entering one of the right and left eyes. Therefore, if the luminance difference between the images captured by both eyes is large, the user may feel the image on the virtual image display unit 107 dazzling, or conversely, the image may not be well viewed due to darkness.

Therefore, in the third embodiment, the brightness sensor 3 for detecting the surrounding brightness is provided on the surface of the flip portion 105.
11 is provided. As the luminance sensor 311, a photoelectric conversion element such as a photonics sensor is used. It is needless to say that the brightness sensor 311 may be any sensor as long as it can detect external light and obtain an output corresponding to the intensity.

It is desirable that the position of the luminance sensor 311 is such that the user does not hide the portable information terminal device when the user holds the portable information terminal device in his hand. In the present embodiment, it is arranged on the surface side of flip section 105, that is, on the side opposite to virtual image display section 107. In this position, the risk of being hidden by the user's hand can be avoided, and the intensity of light rays entering the user's eye can be measured more accurately.

FIG. 7 is a flowchart showing a procedure of an operation control process of the virtual image display unit 107 and the direct view display unit 110 in the third embodiment. This processing is executed in a control device (not shown) included in the portable information terminal device main body 101.

When the user turns on the power of the portable information terminal device (S601), the direct-view display unit 110 is first turned on and activated (S602). Next, it is detected based on the output of the switch 114 whether or not the flip portion 105 is caused (S603). If the flip unit 105 has been caused, the direct-view display unit 110 is turned off and not activated (S604), and the luminance sensor 311 is turned on (S60).
5) Surrounding luminance is detected (S606). afterwards,
The virtual image display unit 107 is turned on and activated (S6
07) The luminance of the virtual image displayed on the virtual image display unit 107 is modulated according to the ambient luminance output from the luminance sensor 311 (S508), so that the virtual image displayed on the virtual image display unit 107 is always easy to see. I do. Specifically, the brightness of the backlight 112 in the virtual image display unit 107 is adjusted in accordance with the surrounding brightness output from the brightness sensor 311, and the brightness of the backlight 112 is increased when the surroundings are bright.
When the surroundings are dark, the brightness of the backlight 112 is reduced.

On the other hand, in step S603, the flip unit 1
If it is determined that the image 05 has not been caused, the virtual image display unit 107 is turned off and not activated (S609), the luminance sensor 311 is also turned off and not activated (S610), and only the direct-view display unit 110 is turned on. It is operated (S611). As described above, when the portable information terminal device is simply used as a mobile phone, only the direct-view display unit 110 consuming less power is operated, and the virtual image display unit 107 and the brightness sensor 311 are not operated, thereby suppressing power consumption. Can be.

In each of the above-described embodiments,
As the image display means, the virtual image display unit 107 and the direct-view display unit 1
10, but three or more image display means may be provided.

In each of the above embodiments,
Although the flip unit 105 is configured to be connected to the portable information terminal device 101 via the universal joint 108 at a point, the flip unit 105 may be configured to be rotatably connected to the portable information terminal device 101 with a line. Good.

A storage medium storing a program code of software for realizing the functions of the above-described embodiments is supplied to a system or an apparatus, and the computer (or CPU or MP) of the system or the apparatus is supplied.
It goes without saying that the present invention is also achieved when U) reads out and executes the program code stored in the storage medium.

In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiments, and the storage medium storing the program code constitutes the present invention. .

As a storage medium for supplying the program code, for example, a floppy disk, hard disk, optical disk, magneto-optical disk, CD-ROM, CD
-R, a magnetic tape, a nonvolatile memory card, a ROM, or the like can be used.

When the computer executes the readout program code, not only the functions of the above-described embodiments are realized, but also an OS running on the computer based on the instructions of the program code. Performs some or all of the actual processing, and the functions of the above-described embodiments are realized by the processing.
Needless to say, this is included in the present invention.

Further, after the program code read from the storage medium is written into a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, based on the instruction of the program code, It is needless to say that the present invention includes a case where the CPU or the like provided in the function expansion board or the function expansion unit performs part or all of the actual processing, and the processing realizes the functions of the above-described embodiments. No.

[0058]

As described in detail above, according to the first aspect of the present invention, a portable information terminal device is provided with at least two video display units of a direct-view display unit and a virtual image display unit. Switch according to the usage status of the type information terminal device. That is, when displaying simple text information such as a telephone number, use a direct-view small and low-resolution video display unit to reduce power consumption, and only when high-resolution information such as image information is needed, A virtual image type high resolution video display unit is used.

Thus, it is possible to reduce the power consumption as a whole while providing a high-resolution video.

According to the fifth aspect of the present invention, the virtual image type video display unit can be folded and stored in a flip shape with respect to the portable information terminal device main body.

Thus, when the virtual image display section is not used, the flip section is stored in the main body of the portable information terminal device, thereby preventing the virtual image display section located inside the flip section from being damaged or damaged. Becomes

Further, according to the present invention, the power supply of the virtual image display section is turned on only when the flip section is pulled out.

As a result, wasteful power consumption can be suppressed.

According to the ninth, fourteenth, or nineteenth aspect of the present invention, a sensor for detecting the attitude of the virtual image display unit is provided, and the image of the virtual image display unit is displayed in accordance with the output of the sensor. Adjust the vertical direction.

Thus, when confirming a virtual image image, an upright image can be obtained regardless of whether the portable information terminal device is held with the right hand or the left hand, and an easy-to-view image is provided. it can.

According to the tenth, fifteenth, or twentieth aspect of the present invention, the portable information terminal device is provided with a luminance sensor for measuring ambient luminance, and a virtual image is displayed according to the output of the luminance sensor. Change the brightness of the part. That is,
When the surroundings are bright, the image displayed on the virtual image display unit is also bright, and when the surroundings are dark, the image on the virtual image display element is also dark.

As a result, it is possible to provide an image which is neither dazzling nor dark and hard to see, and it is possible to suppress unnecessary power consumption because the image is not unnecessarily brightened.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a portable information terminal device according to the present invention.

FIG. 2 is a diagram showing a cross section of a flip part.

FIG. 3 is a flowchart illustrating a procedure of an operation control process of a virtual image display unit and a direct-view display unit according to the first embodiment.

FIG. 4 is a diagram illustrating a state in which a user obtains video information using the portable information terminal device according to the second embodiment.

FIG. 5 is a flowchart illustrating a procedure of an operation control process of a virtual image display unit and a direct-view display unit according to the second embodiment.

FIG. 6 is a diagram illustrating a state in which a user obtains video information using the portable information terminal device according to the third embodiment.

FIG. 7 is a flowchart illustrating a procedure of an operation control process of a virtual image display unit and a direct-view display unit according to the third embodiment.

FIG. 8 is a diagram showing an appearance of a conventional portable information terminal device having a communication function.

FIG. 9 is a diagram illustrating a situation where a user uses a conventional portable information terminal device as a PDA while using the device as a telephone.

[Explanation of symbols]

101: portable information terminal device main body (determination means, operation control means, determination means, rotation means, adjustment means) 102: microphone 103: speaker 104: antenna 105: flip portion (housing, image display means having an enlarged optical system) 106: keypad (information input means) 107: virtual image display unit (image display means having an enlarged optical system) 108: universal joint 109: hook unit 110: direct view display unit (image display means) 111: two-dimensional image display element ( LCD, magnifying optical system 112: backlight (magnifying optical system) 113: free-form surface prism (magnifying optical system) 114: switch (discriminating means) 211: posture sensor (posture detecting means) 311: luminance sensor (detecting means)

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Claims (20)

[Claims] 1. A portable information terminal device having a wireless telephone function and having an information input means and a video display unit, wherein the video display unit is not operated at least simultaneously.
A portable information terminal device comprising two video display means. 2. The portable information terminal device has at least a microphone for inputting sound, a speaker for outputting sound, and an antenna for transmitting and receiving radio waves to and from a wireless base station. 2. The portable information terminal device according to claim 1, wherein the wireless telephone function is realized by at least the microphone, the speaker, and the antenna. 3. The portable information terminal device according to claim 1, wherein the information input means is a character information input device. 4. The apparatus according to claim 1, wherein at least one of said image display means has an enlargement optical system, and provides an enlarged image to a user. Portable information terminal device. 5. A housing of the image display means having the magnifying optical system is configured to be rotatably connected to the main body of the portable information terminal through at least one point. The portable information terminal device according to claim 4, wherein the portable information terminal device has a configuration in which a maximum area surface is stored so as to face the portable information terminal device body. 6. A discriminating means for discriminating whether or not the image display means having the magnifying optical system is stored in the portable information terminal device main body; 6. The portable information terminal device according to claim 5, further comprising an operation control unit that selects one of the two video display units and activates only the selected video display unit. 7. The magnifying optical system when the operation control unit determines that the image display unit having the magnifying optical system is not stored in the main body of the portable information terminal device. 7. The portable information terminal device according to claim 6, wherein said portable information terminal device selects a video display device having the following, and activates only the selected video display device. 8. The operation control means, when the discriminating means determines that the image display means having the magnifying optical system is stored in the portable information terminal device body, the at least two images are displayed. 7. The portable information terminal device according to claim 6, wherein an image display unit other than the image display unit having the magnifying optical system is selected from the display unit, and only the selected image display unit is operated. 9. An attitude detecting means for detecting the attitude of the image display means having the magnifying optical system, and an image displayed on the image displaying means having the enlarging optical system according to a detection result by the attitude detecting means. 6. The image processing apparatus according to claim 5, further comprising: determining means for determining a direction, and rotating means for vertically rotating an image displayed on the image displaying means having the magnifying optical system according to the determination by the determining means. Item 9. The portable information terminal device according to any one of Items 8. 10. A detecting means for detecting brightness around the portable information terminal device, and adjusting a luminance of an image displayed on an image display means having the magnifying optical system according to a detection result by the detecting means. The portable information terminal device according to any one of claims 4 to 9, further comprising an adjusting unit. 11. An image display device having a wireless telephone function and having an information input means and an image display unit, wherein the image display unit comprises at least two image display units which are not operated simultaneously, and at least one of the image display units. One has an enlargement optical system, and the housing of the image display means having the enlargement optical system,
An image display applied to a portable information terminal device having a configuration stored in the portable information terminal device body and having a configuration rotatably connected to the portable information terminal device body via at least one point. In the control method, a determining step of determining whether or not the housing of the image display unit having the magnifying optical system is stored in the portable information terminal device main body, and according to a determination result of the determining step, An operation control step of selecting one of the at least two image display means and operating only the selected image display means. 12. The operation control step includes: when the determining step determines that the housing is not stored in the portable information terminal device main body, the image displaying means having the magnifying optical system is provided. 12. The video display control method according to claim 11, wherein the selected video display means is selected and only the selected video display means is operated. 13. The magnifying optical from the at least two video display means when the operation control step determines that the housing is stored in the portable information terminal device main body by the determining step. 2. An image display means other than an image display means having a system is selected, and only the selected image display means is operated.
2. The video display control method according to 1. 14. An attitude detecting step for detecting an attitude of the image display means having the magnifying optical system, and an image displayed on the image display means having the enlarging optical system according to a detection result by the attitude detecting step. 2. The method according to claim 1, further comprising: a determining step of determining a direction; and a rotating step of vertically rotating an image displayed on an image display unit having the magnifying optical system according to the determination by the determining step.
The video display control method according to any one of claims 1 to 13. 15. A detecting step of detecting brightness around the portable information terminal device, and adjusting a luminance of an image to be displayed on an image display means having the magnifying optical system according to a detection result of the detecting step. 15. The video display control method according to claim 11, further comprising an adjusting step. 16. An image display device comprising a wireless telephone function, an information input means and an image display unit, wherein the image display unit comprises at least two image display units which are not operated at the same time. One has an enlargement optical system, and the housing of the image display means having the enlargement optical system,
An image display applied to a portable information terminal device having a configuration stored in the portable information terminal device body and having a configuration rotatably connected to the portable information terminal device body via at least one point. In a computer-readable storage medium storing a control method as a program, the video display control method is such that a housing of a video display unit having the magnifying optical system is stored in the portable information terminal device main body. A determination step of determining whether or not the operation is performed, and an operation control step of selecting one of the at least two video display means and operating only the selected video display means in accordance with a determination result of the determination step. A storage medium characterized by having. 17. The image display device having the magnifying optical system, wherein the operation control step includes the step of: when it is determined in the determining step that the housing is not stored in the portable information terminal device main body. 17. The storage medium according to claim 16, wherein the storage medium is selected and only the selected image display means is operated. 18. The operation control step, wherein when the case is determined by the determining step to be in a state in which the housing is stored in the portable information terminal device main body, the magnifying optical from the at least two image display means is performed. 2. An image display means other than an image display means having a system is selected, and only the selected image display means is operated.
6. The storage medium according to 6. 19. A posture detecting step for detecting a posture of the image display means having the magnifying optical system, and an image displayed on the image display means having the magnifying optical system in accordance with a result of the detection by the posture detecting step. 2. The method according to claim 1, further comprising: a determining step of determining a direction; and a rotating step of vertically rotating an image displayed on an image display unit having the magnifying optical system according to the determination by the determining step.
The storage medium according to any one of claims 6 to 18. 20. A detecting step of detecting brightness around the portable information terminal device, and adjusting a luminance of an image displayed on an image display unit having the magnifying optical system according to a detection result of the detecting step. 20. The storage medium according to claim 16, further comprising an adjusting step.