JP3838930B2 - Mobile phone - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a foldable mobile phone.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as one form of mobile phone, there is a mobile phone having a rear liquid crystal screen exposed in a folded state. FIG. 6 shows a plan view of the cellular phone 70 in a folded state. The cellular phone 70 is normally carried in a folded state, and displays the current time, incoming call, reception of e-mail, etc. on the rear liquid crystal screen 15. The display on the rear liquid crystal screen 15 makes it possible to know the minimum information without opening the housing 11. Further, the back liquid crystal screen 15 is provided with illumination (not shown) so that display contents can be visually recognized even in a dark place. This illumination is turned on by depressing an illumination switch 71 provided on the housing 11 in order to save power consumption, and is normally turned off.
[0003]
On the other hand, there is also a foldable mobile phone that does not have a rear liquid crystal screen. In this mobile phone, it is necessary to open the casing and check information on the main liquid crystal screen.
[0004]
[Problems to be solved by the invention]
However, when the cellular phone 70 having the illumination switch 71 is carried, the illumination switch 71 is depressed in a bag or the like, and the illumination continues to be lit and the battery may be consumed. In addition, providing a switch on the outer surface of the housing 11 can increase costs, hinder downsizing of the mobile phone, and restrict design.
[0005]
In addition, the operation of opening the casing and confirming information with the foldable mobile phone having no rear liquid crystal screen is very troublesome and troublesome.
[0006]
An object of the present invention is to provide a mobile phone that can confirm information even in a dark place by a simple operation equivalent to pressing the illumination switch without providing an illumination switch on the outer surface of the housing.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, there is provided a first housing having a display portion on the back surface, and a first housing that is rotatably connected to the first housing so that the first housing can be opened and closed. A mobile phone comprising the second housing, wherein the display unit is exposed when the second housing is closed,
When the second housing in the closed state is opened and closed within a predetermined time, the illumination of the display unit is turned on.
[0008]
According to this configuration, since the illumination of the display unit is turned on by a simple operation such as putting a finger between the casings at night or in a dark place, the information displayed on the display unit on the back can be visually recognized.
[0009]
According to another aspect of the present invention, there is provided a mobile phone including a first casing and a second casing that is rotatably connected to the first casing and can be opened and closed with respect to the first casing.
When the second casing in the closed state is opened and closed within a predetermined time, information is output as a voice.
[0010]
According to this configuration, since the information is output as a voice by a simple operation such as putting a finger between the casings at night or in a dark place, the user can know the information. In addition, in a mobile phone that does not have a rear liquid crystal screen, it is not necessary to open the casing and check information on the main liquid crystal screen, which is convenient.
[0011]
In the above mobile phone, the opening and closing of the first and second casings can be detected by an opening / closing detection unit provided in the first or second casing.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. In addition, the same code | symbol is attached | subjected to the component similar to a prior art example, and the detailed description is abbreviate | omitted.
[0013]
FIG. 1 is an external perspective view of a state in which a foldable mobile phone is opened. The mobile phone 10 includes a first casing 11 and a second casing 13 that is rotatably connected to a lower end portion of the first casing 11 by a hinge 12. The first casing 11 can be opened and closed, and the mobile phone 10 can be folded in two. FIG. 2 shows a plan view of the cellular phone 10 in a folded state.
[0014]
As shown in FIGS. 1 and 2, the first casing 11 has a main liquid crystal screen 14 that displays information on the inner surface when folded and information on the outer surface when folded. A rear liquid crystal screen 15 to be displayed, a speaker 16 at the upper part of the rear liquid crystal screen 15, a protrusion 17 for pressing an open / close detection switch 19 described below at the lower part of the main liquid crystal screen 14, and an antenna 18 at the upper end part are provided. Yes. Note that illumination (not shown) serving as a backlight is disposed on the back of the main liquid crystal screen 14 and the back liquid crystal screen 15. The second casing 13 is provided with an open / close detection switch (open / close detection unit) 19 that is pressed by the protrusion 17 in a folded state, and an operation unit 20 that includes various keys for performing dial operations and the like. Yes. Note that the information displayed on the rear liquid crystal screen 15 is information such as the current time, incoming call, reception of an e-mail, and the like, and indicates characters and designs that can confirm such information.
[0015]
In the cellular phone 10, when the cellular phone 10 is folded (the state shown in FIG. 2), the projection 17 is in a state where the open / close detection switch 19 is pressed, and the closed state of the casing is detected. On the other hand, in a state where the second housing 13 is rotated and opened (state shown in FIG. 1), the protrusion 17 is separated from the open / close detection switch 19 and the open state of the housing is detected.
[0016]
FIG. 3 is a block diagram showing a configuration of the mobile phone 10. The mobile phone 10 includes a control unit 30 that controls the overall operation of the mobile phone 10, an antenna 18, a radio unit 31 that is connected to the antenna 18 and performs outgoing / incoming calls, an operation unit 20, an open / close detection switch 19, The liquid crystal screen 14, the rear liquid crystal screen 15, the display controller 32 for controlling the display contents of the main liquid crystal screen 14 and the rear liquid crystal screen 15, the main liquid crystal screen illumination 33, the rear liquid crystal screen illumination 34, and the main liquid crystal An illumination control unit 35 that controls turning on / off of the screen illumination 33 and the back liquid crystal screen illumination 34, a memory 36 that records audio data corresponding to the display content of the back liquid crystal screen 15, and the audio data in the memory 36 are read out. A voice synthesizer 37 for synthesizing the output voice, an amplifier 38 for amplifying the voice from the voice synthesizer 37, and a speed for outputting the voice amplified by the amplifier 38. And Ca 16, and a timer unit 39. the opening and closing detection switch 19 measures the opening and closing times to be detected.
[0017]
Next, the operation of the mobile phone 10 when confirming information will be described. FIG. 4 is a flowchart showing the operation of the mobile phone 10. In step S40, when the case is opened and closed by the user while the mobile phone 10 is folded and waiting for an incoming call or operation, the process proceeds to step S41, and the control unit 30 detects that the open / close detection switch 19 is open. Determine whether or not. When the open state is not detected in step S41, that is, when the casing is slightly opened and closed and cannot be detected, the process returns to step S40 and the standby state is continued.
[0018]
On the other hand, when the open state is detected in step S41, the process proceeds to step S42, and the timer unit 39 measures the time of the open state. It progresses from step S42 to step S43, and it is judged whether the time of an open state exceeds the predetermined shortest time A. When the predetermined shortest time A is not exceeded in step S43, it is considered that the user does not intend the opening / closing operation, and the process returns to step S40 to continue the standby state. Note that the predetermined shortest time A is preferably set to a value close to zero because it is necessary to regard the time for which the user opens the casing for a moment as an open state.
[0019]
On the other hand, when the predetermined shortest time A is exceeded in step S43, it is regarded as an opening / closing operation by the user, and the process proceeds to step S44 to determine whether or not the open time is less than the predetermined longest time B. When the predetermined maximum time B has been exceeded in step S44, it is determined that the housing remains open, and the process proceeds to step S45, where the display control unit 32 turns on the main liquid crystal screen 14 to turn on the illumination. The control unit 35 turns on the main liquid crystal screen illumination 33. Next, the process proceeds from step S45 to step S46, and it is determined whether or not the open / close detection switch 19 has detected a closed state. When the closed state is detected in step S46, that is, when the cellular phone 10 is folded again, the process proceeds to step S47, the main liquid crystal screen 14 is turned off, and the main liquid crystal screen illumination 33 is turned off. Thereafter, the process returns to step S40 to enter a standby state.
[0020]
On the other hand, when the closed state is not detected in step S46, that is, when the casing is still open, it proceeds to step S48 and whether or not a predetermined time has elapsed since the main liquid crystal screen illumination 33 was turned on. Judging. If the predetermined time has not elapsed in step S48, the process returns to step S46.
[0021]
On the other hand, if the predetermined time has elapsed in step S48, the process proceeds to step S49, the main liquid crystal screen illumination 33 is turned off while the main liquid crystal screen 14 is in the on state, and the process is terminated. If the user has previously set the main liquid crystal screen illumination 33 to be turned off, the main liquid crystal screen illumination 33 is not turned on in step S45.
[0022]
On the other hand, when it is less than the predetermined longest time B in step S44, that is, when the opening / closing operation of the housing by the user is a short time (from A to B), the process proceeds to step S50, and the rear liquid crystal screen illumination 34 is turned on. Let If the user turns off the back liquid crystal screen illumination 34 in advance, the back liquid crystal screen illumination 34 is not turned on accordingly. The process proceeds from step S50 to step S51, and it is determined whether or not a predetermined time has elapsed since the rear liquid crystal screen illumination 34 was turned on. If the predetermined time has elapsed in step S51, the process proceeds to step S52, and the rear liquid crystal screen illumination 34 is turned off. Thereafter, the process returns to step S40 to enter a standby state.
[0023]
As described above, if the time when the user opens and closes the housing is within a predetermined time (A to B) set in advance, the back liquid crystal screen illumination 34 is turned on for a predetermined time, so that the back liquid crystal can be used at night or in a dark place. The information displayed on the screen 15 can be visually recognized. Further, when the user keeps the casing open, the main liquid crystal screen 14 is turned on and the main liquid crystal screen illumination 33 is turned on for a predetermined time, so that the main liquid crystal screen 14 can be kept at night or in a dark place. It can be visually recognized.
[0024]
In the above embodiment, the operation of opening and closing the folded cellular phone 10 (the state shown in FIG. 2) is performed using the fingers 60 and 61 of the first casing 11 and the second casing 13 as shown in FIG. It can be easily opened and closed by inserting and removing it. Therefore, it is not necessary to provide an illumination switch outside the housing as in the conventional product, and the cost is not increased.
[0025]
Further, in the above embodiment, when the time when the user opens and closes the housing is within a predetermined time (A to B) set in advance, the content of the information displayed on the back liquid crystal screen 15 is changed to the voice synthesizer. 37 may be combined and output from the speaker 16. Thereby, the user can know the display contents without looking at the rear liquid crystal screen. This audio output may be performed simultaneously with the operation of turning on the back liquid crystal screen illumination 34 of the above embodiment, or may be performed instead of turning on the back liquid crystal screen illumination 34. Furthermore, this audio output is convenient when applied to a mobile phone having no rear liquid crystal screen.
[0026]
【The invention's effect】
According to the present invention, when the cellular phone in a folded state is opened and closed within a predetermined time, the illumination of the display unit on the back is turned on. Since the illumination of the display unit is turned on by a simple operation, the information displayed on the display unit on the back can be visually recognized.
[0027]
In addition, according to the present invention, when the folded cellular phone is opened and closed within a predetermined time, the information is output by voice, so that a simple operation such as putting a finger between the casings at night or in a dark place is possible. Thus, since the information is output by voice, the user can know the information. In addition, when applied to a mobile phone that does not have a rear liquid crystal screen, it is not necessary to open the casing and confirm information on the main liquid crystal screen, which is convenient.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a state in which a foldable mobile phone of the present invention is opened.
FIG. 2 is a plan view of the cellular phone of FIG. 1 in a folded state.
FIG. 3 is a block diagram showing a configuration of a mobile phone according to the present invention.
FIG. 4 is a flowchart showing the operation of the mobile phone of the present invention.
FIG. 5 is a diagram for explaining an operation of opening the mobile phone in FIG. 2;
FIG. 6 is a plan view of a conventional mobile phone in a folded state.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Mobile telephone 11 1st housing | casing 13 2nd housing | casing 15 Back surface liquid crystal screen (display part)
19 Open / close detection switch (open / close detection unit)

Claims (3)

A first housing having a display portion on the back surface, and a second housing that is pivotally connected to the first housing and can be opened and closed with respect to the first housing. In the mobile phone in which the display unit is exposed with the housing of 2 closed,
A cellular phone characterized in that when the second casing in a closed state is opened and closed within a predetermined time, the illumination of the display portion is turned on. In a mobile phone comprising a first casing and a second casing that is pivotally connected to the first casing and can be opened and closed with respect to the first casing.
A mobile phone characterized in that information is output as a voice when the closed second casing is opened and closed within a predetermined time. 3. The cellular phone according to claim 1, wherein opening / closing of the first and second casings is detected by an opening / closing detector provided in the first or second casing.

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