JP2003319036A - Mobile communication equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that displaying is impossible without opening equipment, since a display unit exists inside when the equipment is folded, in the foldable portable telephone equipment. <P>SOLUTION: A simple LCD display unit 12 is arranged on a back of either an upper cabinet 4 or a lower cabinet 7, separately from an LCD display unit 3 which is used conventionally, and prescribed information is displayed on the simple LCD display 12 in the closed state of the upper and the lower cabinets 4, 7. An opening and closing detection switch 30 for detecting opening and closing of the upper cabinet 4 or the lower cabinet 7 is arranged. By using a detection signal of the opening and closing detection switch 30, information is displayed on the LCD display unit 3 in the opened state and on the simple LCD display unit 12 in the closed state. As a result, information can be displayed on the simple LCD display unit in the state that the upper and the lower cabinets are closed, and facility is improved. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone device, P
The present invention relates to a mobile communication device such as HS.

[0002]

2. Description of the Related Art Conventionally, mobile phones have mainly been used for voice communication, but recent mobile phones are required to have multiple functions such as data communication and image communication in addition to voice communication. Increasing size is needed. On the other hand, there is a demand from the market for miniaturization of mobile phone devices, and for example, the display unit is made as large as possible by adopting a foldable structure.

FIG. 7 is a perspective view showing an open state of a conventional foldable portable telephone device, and FIG. 8 is a perspective view showing a closed state. In the figure, 1 is an antenna for transmitting and receiving radio waves, 2 is a receiver for receiving voice, 3 is a display unit (LCD display unit) for displaying a large amount of information such as WEB and images.

Reference numeral 4 denotes an upper casing and 7 denotes a lower casing, one end of which is connected by a hinge unit 5. With this structure, the upper housing 4 and the lower housing 7 are connected to the hinge unit 5.
Open and close around. Further, 6 is a key operation unit for inputting data, and 8 is a microphone for receiving voice.

[0005]

In the above-mentioned conventional portable telephone device, the upper casing 4 and the lower casing 7 are opened and closed centering on the hinge unit 5. Therefore, when the portable telephone device is used, the operation shown in FIG.
By making the open state as shown in, it is possible to make a call, input data, and the like. On the other hand, when not in use, it can be made compact and convenient to carry by folding it into a closed state as shown in FIG.

However, in the conventional folding type portable telephone device, when the portable telephone device is folded, the display portion is on the inner side, so that the display cannot be made unless the portable telephone device is opened, which is inconvenient. That is, the reason is that the size of the display unit when folded determines the size of the housing, and the size of the housing influences the size of the mobile phone device, and if the display unit is kept large, This was because it depended on the trade-off design that had to be folded.

The present invention has been made to solve the above-mentioned conventional problems, and an object thereof is to provide a mobile communication device capable of improving the convenience of the display unit by providing the display unit on the back surface of the housing. To do.

[0008]

In order to achieve the above object, a mobile communication device of the present invention has first and second casings each having a display portion and one end of which is connected by a hinge portion. A mobile communication device that includes a portion and that opens and closes the first and second housing portions around a hinge portion when used and when not used, in a back surface of one of the first and second housing portions. A second display unit is provided separately from the display unit, and predetermined information is displayed on the second display unit when the first and second housing units are closed.

Further, the mobile communication device of the present invention includes a first casing part having a display part and a second casing part connected to the first casing part by a slide mechanism, and is used. Time,
In a mobile communication device that opens and closes by sliding the first and second casings when not in use, a second display is provided on the back surface of the second casing separately from the display. The predetermined information is displayed on the second display unit in the closed state of the first and second casings.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described in detail with reference to the drawings.

(First Embodiment) FIG. 1 is a perspective view showing a first embodiment of a mobile communication device of the present invention. Although FIG. 1 shows a folded closed state, an open state is shown in FIG.
Is the same as. The present embodiment is characterized in that, as shown in FIG. 1, a simple key operation unit 11 is provided on the back surface of the upper housing 4 of the mobile phone device, and a simple LCD display unit 12 is provided in the vicinity thereof. The simple key operation unit 11 and the simple LCD display unit 12
Is not limited to the upper housing 4, but may be provided on the back surface of the lower housing 7.

The simple key operation unit 11 is used to scroll the screen of the simple LCD display unit 12 and move the display screen as described later. Simple LCD display unit 12
Is smaller than the screen of the LCD display unit 3 and is used for displaying information such as the incoming telephone number and SMS which has a relatively small amount of information to be displayed in the closed state, and is provided to improve user convenience.

The other structure is the same as that of the conventional device shown in FIGS. That is, as described with reference to FIGS. 7 and 8, the antenna 1 for transmitting and receiving radio waves, the receiver 2 for receiving voice, and the WE
B, a hinge unit 5 for connecting the LCD display unit 3 for displaying a large amount of information such as an image, the upper housing 4 and the lower housing 7, and opening and closing the upper housing 4 and the lower housing 7 of the mobile phone device. , A key operation unit 6 for inputting data, and a microphone 8 for receiving voice.

FIG. 2 is a block diagram showing an electric circuit of the portable telephone device according to the present embodiment. The same parts as those in FIGS. 1, 7, and 8 are designated by the same reference numerals. Reference numeral 1 is an antenna for transmitting and receiving radio waves, 22 is a radio unit for transmitting and receiving radio signals, 8 is a microphone for transmitting voice, 2 is a receiver for receiving voice, 24 is voice for processing voice signals of the microphone 8 and receiver 2. It is a signal processing unit.

Reference numeral 6 is a key operation section shown in FIG. 7, which is mainly used. Reference numeral 11 denotes a simple key operation unit provided on the back surface of the upper housing 4 as shown in FIG. 1, reference numeral 29 denotes a storage device unit for storing a reference level of battery capacity as described later, and 30 denotes upper housing 4 and lower housing. It is an opening / closing detection switch that detects opening / closing of the body 7. Further, 31 is a power supply monitor section for detecting the remaining battery level of the battery, and 3 is an LCD display section shown in FIG. 7, which is mainly used. Reference numeral 12 is a simple LCD display section provided on the back surface of the upper housing 4 as shown in FIG. 1, 32 is an LCD driver for controlling these LCD display sections 3 and 12, and 23 is a control section for controlling each functional block. is there.

At the time of a normal call, the upper casing 4 and the lower casing 7 are opened to operate the key operation unit 6 to make and receive a call.
The operation information is LC by driving the LCD driver 32.
It is displayed on the D display unit 3. When the upper casing 4 and the lower casing 7 are closed as shown in FIG. 1, the open / close detection switch 30 detects the closed state, and the detection signal is sent to the control unit 23. In the control unit 23, the display unit used is LC
The D display unit 3 is switched to the simple LCD display unit 12,
The operation unit to be used is from the key operation unit 6 to the simple key operation unit 11
Is switched to.

On the contrary, when the upper case 4 and the lower case 7 are opened as shown in FIG. 7, the open / close detection switch 30 detects the open state, and the detection signal is sent to the controller 23. In the control unit 23, the display unit to be used is switched from the simple LCD display unit 12 to the LCD display unit 3, and the operation unit to be used is switched from the simple key operation unit 11 to the key operation unit 6.

Next, the control of the display unit when the upper casing 4 and the lower casing 7 are opened and closed will be described. FIG. 3 shows an example of display contents of the two display parts in the open state and the closed state. The simple LCD display unit 12 displays information having a relatively small amount of information to be displayed, such as an incoming telephone number, an SMS display, a remaining battery level, and an electric field strength, depending on the size of the foldable mobile phone device due to size restrictions. In addition, an incoming call history or a simple message may be displayed.

On the other hand, a relatively large amount of information such as WEB information or image information is displayed on the LCD display section 3 with the portable telephone device opened as shown in FIG. As shown in FIG. 3, these display portions 3 and 12 are the LCD driver 3
Drive control is commonly performed by the two.

Next, the simple key operation unit 11 will be described. The simple key operation unit 11 is a simple LC as shown in FIG.
The contents displayed on the D display unit 12 are scrolled to move the displayed contents. The basic operation function has a function of scrolling up and down, left and right, and a function of selecting a selection key by pushing it as shown by an arrow in FIG. The simple key operation unit 11 depends on the space on the back surface of the upper housing 4 or the lower housing 7.
It is also possible to add a numeric keypad as. By doing so, the function can be further improved.

Next, the power supply monitor section 31 will be described. First, the reference level when the remaining battery capacity is low is registered in the storage device unit 29 in advance. Control unit 23
Compares the battery capacity value detected by the power supply monitor unit 31 with the reference level registered in the storage device unit 29, and performs control to shift to the power saving mode when the battery capacity value becomes equal to or lower than the reference level. As the power saving mode, for example, a simple LC
For example, the lighting time of the D display unit 12 may be shortened, and the control unit 23 restricts the use of the display function such that the display function installed in the device is limited to necessary blocks.

Here, in the present embodiment, the LCD display unit 3
Since the simple LCD display unit 12 is provided on the rear surface of the housing separately from the case, the simple LC display unit 12 is provided even when the mobile phone device is in the closed state.
Incoming telephone number of mobile phone, SMS display,
Information such as the remaining battery level and electric field strength can be displayed, and this information can be notified to the user. Therefore, user convenience can be improved.

Further, the remaining battery capacity is monitored by the battery monitor unit 31.
It is possible to reduce the power consumption when the battery capacity becomes low by limiting the display function installed in the device to only the necessary circuit blocks based on the detected information and limiting the use of the display function. it can. Therefore, even if the battery capacity becomes low during use of the mobile phone device such as a telephone call or data communication, the battery capacity can be maintained until the next charging, and the usability can be improved. In addition, it is possible to notify the user that the battery capacity is low and prompt the user to charge the battery.

Further, a common LCD driver 32 is used for both the LCD display section 3 and the simple LCD display section 12,
Since the display unit can be switched by controlling the display unit 3 and the simple LCD display unit 12 in common, the history of incoming calls, simple received messages, etc. can be easily compared with the main LCD display unit 3 according to the open / close state of the mobile phone device. It can be displayed and viewed on both of the LCD display sections 12.

Further, the conventional LCD display unit 3 and the simple LCD display unit 12 are selectively used, and a simple LC is used during standby.
By displaying necessary information on the D display unit 12, the number of open states can be limited, so that the LCD having a relatively large screen is displayed.
The use of the display unit 3 is suppressed, and the power consumption can be reduced.

(Second Embodiment) Next, a second embodiment of the present invention will be described. FIG. 5 is a block diagram showing the configuration of the second embodiment. The difference from FIG. 2 of the first embodiment is that an optical sensor unit 35 for detecting the brightness around the device is provided. Other configurations are the same as those in the first embodiment.

The basic operation is the same as that of the first embodiment, but in the present embodiment, the brightness around the portable telephone device is detected by the optical sensor section 35, and the detected data is sent to the control section 23. To be The control unit 23 switches to the power saving mode when the brightness detected based on the detection data from the optical sensor unit 35 falls below a predetermined reference level.

In the power saving mode, the control unit 23 has a small detection data indicating the brightness from the optical sensor unit 35,
Since the mobile phone device is rarely used, for example, in a dark place such as a bag or a pocket, the simple LCD display unit 12 is immediately turned off.

When the portable telephone device is used in a dark place, the simple key operation unit 11 is pressed to make the simple L
The operation of the simple LCD display unit 12 is immediately restarted by activating the CD display unit 12 or opening the mobile phone device. This is because the simple key operation unit 11 is installed on the back surface of the mobile phone device, so that the key operation can be performed even in the closed state.

In the present embodiment, the brightness around the portable telephone device is detected, and when the brightness is low and not in use, the simple L
Since the CD display unit 12 is turned off, power saving can be achieved. Further, if necessary, the operation is restarted immediately by operating the simple operation key 11 or by opening the upper housing 4 and the lower housing 7, so that it can be easily started when used.

(Third Embodiment) Next, a third embodiment of the present invention will be described. The third embodiment will explain a mode in which the present invention is used in a mobile phone device of a slide type rather than a foldable type. FIG. 6 is a perspective view showing the third embodiment. FIG. 6A is a perspective view showing an open state, and FIG. 6B is a perspective view when it is viewed from the back surface. In FIG. 6, the same parts as those in the first embodiment are designated by the same reference numerals.

The upper housing 4 is provided with an LCD display section 3, and the lower housing 7 is provided with a key operation section 6. The upper housing 4 and the lower housing 7 are connected by a slide mechanism (not shown) and can be slid in the arrow direction of FIG. It is possible to reduce the size of the mobile phone device by opening it as shown in FIG. 6A when it is used and sliding it in the opposite direction when it is not used.

Here, in this embodiment, as shown in FIG. 6B, a simple key operating section 11 is provided on the back surface of the lower housing 7 in the same manner as in FIG. 1, and a simple LCD display section 12 is provided in the vicinity thereof. ing. The simple key operation unit 11 scrolls the screen of the simple LCD display unit 12 as in the first embodiment,
It is used to move the display screen. Similar to the first embodiment, the simple LCD display unit 12 is smaller than the screen of the LCD display unit 3 and is used to display information such as an incoming telephone number and SMS with a relatively small amount of information to be displayed in the closed state.

The configuration of the electric circuit of the third embodiment is exactly the same as that of FIG. That is, the opening / closing detection switch 30 is provided as described with reference to FIG. 2, and it is the first embodiment to select the display unit or the operation unit to be used according to the detection signal of the opening / closing detection switch 30 as described with reference to FIG. It is similar to the form. That is, in the open state, the LCD display unit 3 and the key operation unit 6
Is selected, and in the closed state, the simple LCD display unit 12 and the simple key operation unit 11 are selected. In addition, the power supply monitor 3
1. The storage device unit 29 is provided to limit the use of the display function when the battery capacity becomes lower than the reference level.
It is similar to the embodiment.

Further, in this embodiment as well, as in the second embodiment, the sensor unit 35 for detecting the brightness is provided, and when the detection data of the sensor unit 35 becomes below the reference level, the simple LCD display unit 12 is displayed. You may turn off the light. Further, as in the second embodiment, the simple LCD display unit 12 is activated by the operation of the simple key operation unit 11, or the upper housing unit 4 and the lower housing unit 7 are set as shown in FIG. 6A. The operation of the simple LCD display unit 12 may be resumed by setting the open state.

In this embodiment, similar to the first embodiment, necessary information such as the incoming telephone number is displayed on the simple LCD display section 12 in the closed state, and is displayed on the LCD display section 3 in the opened state. Therefore, the use of the LCD display unit 3 having a relatively large screen can be suppressed, and the power consumption can be reduced.

In the above embodiment, the portable telephone device is described as an example, but the present invention is not limited to this, and can be used for PHS and the like.

[0038]

As described above, according to the present invention,
Since necessary information is displayed on the second display unit in the closed state, the displayed contents can be visually recognized and operated in the closed state, and convenience can be improved. Further, when the battery capacity becomes equal to or lower than the reference level, the power saving mode is entered, so that the power consumption can be reduced. Furthermore, by selectively using the conventional display unit and the second display unit 12 and displaying necessary information on the second display unit during standby, use of the display unit having a relatively large screen is suppressed and power consumption is reduced. It can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing an appearance of a first embodiment of the present invention.

2 is a block diagram of the electric circuit of the embodiment of FIG. 1. FIG.

FIG. 3 is an LCD display unit 3 and a simple LCD of the embodiment of FIG.
5 is a diagram illustrating a display on the display unit 12. FIG.

FIG. 4 is a diagram illustrating an operation of a simple operation key 11 according to the embodiment of FIG.

FIG. 5 is a block diagram showing a second embodiment of the present invention.

FIG. 6 is a perspective view showing a third embodiment of the present invention.

FIG. 7 is a perspective view showing an open state of a conventional foldable mobile phone device.

FIG. 8 is a perspective view showing a closed state of a conventional foldable mobile phone device.

[Explanation of symbols]

1 antenna 2 receiver 3 LCD display 4 Upper case 5 Hinge unit 6 key operation part 7 Lower case 8 microphones 11 Simple key operation part 12 Simple LCD display 22 Radio 23 Control unit 24 Audio signal processor 29 storage unit 30 Open / close detection switch 31 Power supply monitor 32 LCD driver 35 Optical sensor section

Claims (14)

[Claims] 1. A display unit is provided on one side, and first and second casing units are connected to each other at one end by a hinge unit. The first and second casing units are used in accordance with use and non-use. In the mobile communication device that opens and closes the housing part around the hinge part, the first
And a second display unit is provided on one of the back surfaces of the second casing unit separately from the display unit, and predetermined information is displayed on the second display unit when the first and second casing units are closed. A mobile communication device characterized by displaying. 2. The mobile communication device according to claim 1, wherein the screen of the second display unit is smaller than that of the display unit. 3. The mobile communication device according to claim 1, wherein an operation unit for operating the second display unit is provided near the second display unit. 4. The predetermined information is incoming telephone number information,
The mobile communication device according to claim 1, wherein the mobile communication device is SMS display information, battery remaining amount information, or electric field strength information. 5. A means for detecting the battery capacity, further comprising means for restricting the use of the display function when the battery capacity detected by the capacity detecting means falls below a predetermined reference level. The mobile communication device according to claim 1, wherein the mobile communication device is a mobile communication device. 6. A means for detecting opening / closing of the first and second casing parts, wherein the display part is provided when the open state is detected by the open / close detecting means, and the display part is provided when a closed state is detected. The mobile communication device according to claim 1, further comprising means for selecting the second display unit. 7. A means for controlling an operation section provided near the second display section so as to be usable in response to the detection of the closed state of the opening / closing detection section.
The mobile communication device according to any one of claims 1 to 6. 8. A first casing part having a display part, and a second casing part connected to the first casing part by a slide mechanism, wherein the first casing part is used or not used. In a mobile communication device that opens and closes by sliding the first and second casings, a second display is provided on the back surface of the second casing separately from the display, and the first and the second casings are provided. A mobile communication device, wherein predetermined information is displayed on the second display unit when the second casing is closed. 9. The mobile communication device according to claim 8, wherein the screen of the second display unit is smaller than that of the display unit. 10. The second display is provided near the second display portion.
The mobile communication device according to claim 8, further comprising an operation unit for operating the display unit. 11. The mobile communication device according to claim 8, wherein the predetermined information is incoming telephone number information, SMS display information, battery remaining amount information, or electric field strength information. 12. The battery further includes a capacity detecting means for detecting a battery capacity, wherein the battery capacity detected by the capacity detecting means is
9. The device according to claim 8, further comprising means for restricting the use of the display function when the level becomes lower than a predetermined reference level.
The mobile communication device according to any one of claims 1 to 11. 13. A means for detecting opening / closing of the first and second casing parts, wherein the display part is provided when the open state is detected by the open / close detecting means, and the display part is provided when the closed state is detected. The mobile communication device according to any one of claims 7 to 11, further comprising means for selecting the second display unit. 14. A means for controlling an operating portion provided near the second display portion so as to be usable in response to the detection of the closed state of the opening / closing detecting means. The mobile communication device according to item 13.