JP5341661B2 - Portable electronic devices - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable electronic apparatus in which a key to be operated is illuminated quickly by a simple structure when a power saving mode is canceled. <P>SOLUTION: The portable electronic apparatus includes a housing, a display part 34, an operation part having a plurality of keys 13, a plurality of light emission parts 14, an application execution part 51, a selection decision part 52 which selects a light emission part 14 corresponding to a predetermined key 13 based on an instruction of a predetermined application, a display control part 54 which causes the display part 34 to display predetermined information, and a control part 56 which stores first light emission information into a storage part 15 when the display part 34 change over from a non-power saving state to a power saving state occurs in a state that a predetermined light emission part 14 is emitting light. When the display part 34 changes over from the power saving state to the non-power saving state, if it is determined that the first light emission information is present in the storage part 15, the control part 56 causes the predetermined light emission part 14 to emit light, based on the first light emission information. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a portable electronic device such as a cellular phone.

  2. Description of the Related Art Conventionally, when a user performs a predetermined operation, a mobile phone having a guide function that notifies an operation procedure by lighting a key to be operated by the user has been proposed (for example, see Patent Document 1). There has also been proposed a mobile phone equipped with a power saving mode in which the display is turned off to reduce power consumption when no operation is performed by the user for a predetermined time.

  Here, in the mobile phone having the guide function and the power saving mode, when the power saving mode is activated while the guide function is being used, the light is turned on corresponding to the screen displayed on the display immediately before the power saving mode is activated. The key that was being used is also turned off.

JP 2005-348184 A

  By the way, when the power saving mode is released, the mobile phone displays a screen displayed on the display when the power saving mode is released, that is, a key corresponding to the state of the application being executed when the power saving mode is released. It is desirable to light up.

  An object of the present invention is to provide a portable electronic device that can light a key to be operated quickly and with a simple configuration when a power saving mode is canceled.

The present invention includes a housing, a display unit provided in the housing, an operation unit provided in the housing and having a plurality of keys, and a plurality of light emitting units arranged corresponding to each of the plurality of keys. A selection determination for selecting a light emitting unit corresponding to a predetermined key from the plurality of keys based on an instruction of an application execution unit that executes the predetermined application and an instruction of the predetermined application being executed by the application execution unit A display control unit that displays predetermined information on the display unit according to an execution state of the predetermined application, a predetermined light emitting unit is selected by the selection determining unit, and the predetermined light emitting unit emits light In the state, when the display unit is shifted from the non-power-saving state to the power-saving state, the second light-emitting unit selected by the selection determining unit And a control unit for storing the light emission information in the storage unit, when the predetermined application is different from other applications by the application execution unit when the display unit is in a power-saving state is performed, the selection decision unit The light emitting unit corresponding to a predetermined key is selected from the plurality of keys based on an instruction of the other application, and the control unit is configured to switch the display unit from the power saving state to the non power saving state. When the first light emission information is determined to be stored in the storage unit, the predetermined light emission unit is caused to emit light based on the first light emission information and the first light emission information stored in the storage unit is stored. The present invention relates to a portable electronic device that updates one light emission information to second light emission information that is information selected by the selection determination unit based on an instruction from the other application .

  In addition, it is preferable that the selection determination unit selects a plurality of light emitting units arranged corresponding to each of two or more keys of the plurality of keys.

  In addition, it is preferable that the selection determination unit determines a light emission mode including at least one of lighting information, blinking information, and light emission color information of the light emitting unit selected by the selection determination unit.

  Moreover, it is preferable that the said control part updates the said 2nd light emission information memorize | stored in the said memory | storage part to the said 1st light emission information, when execution of the said other application by the said application execution part is complete | finished.

  The other application executed by the application execution unit is preferably an application with a predetermined notification operation.

  The housing includes a first housing having the operation unit, a second housing having the display unit, a closed state in which the first housing and the second housing overlap each other, and the first housing. A connecting portion that variably connects an open state in which the housing and the second housing do not overlap each other, and an open / close detection portion that detects the closed state or the open state, and the control unit includes: When the other application is executed by the application execution unit in a state where the closed state is detected by the open / close detection unit, the first light emission information stored in the storage unit is used as the second light emission information. It is preferable to update.

  In addition, when the application execution unit finishes executing the other application while the closed state is detected by the open / close detection unit, the control unit is configured to store the second light emission stored in the storage unit. Information is preferably updated to the first light emission information.

  According to the portable electronic device of the present invention, when the power saving mode is canceled, the key to be operated can be lit quickly and with a simple configuration.

It is a perspective view which shows the mobile phone which concerns on one Embodiment of this invention in an open state. It is a functional block diagram which shows the function of the mobile telephone of this invention. It is a flowchart which shows operation | movement of a mobile telephone in case a display part transfers to a non-power-saving state from a power-saving state by a power-saving execution part. It is a flowchart which shows operation | movement of a mobile telephone when a display part transfers to a power-saving state from a non-power-saving state by a power-saving execution part. It is a flowchart which shows operation | movement of a mobile telephone when a predetermined LED is selected by the selection determination part based on the instruction | indication of the application currently performed. It is a flowchart which shows operation | movement of a mobile telephone when selection of the predetermined | prescribed LED selected by the selection determination part based on the instruction | indication of the application currently performed is cancelled | released.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, a basic structure of a mobile phone 1 which is an embodiment of the mobile electronic device of the present invention will be described with reference to FIG. FIG. 1 is a perspective view showing the cellular phone 1 of the present embodiment in an open state.

  As shown in FIG. 1, a mobile phone 1 according to the present embodiment is a foldable mobile phone 1, and includes an operation unit side case 2 and a display unit side case 3 as cases, and an operation unit side case. 2 and the connection part 4 which connects the display part side housing | casing 3 are provided.

  The operation unit side body 2 includes a front case 21 and a rear case 22 that form an outer shell. The front case 21 constitutes the front surface 2 a side of the operation unit side body 2. The front surface 2 a of the operation unit side body 2 is a surface facing the display unit side body 3 in a state in which the mobile phone 1 is folded. The rear case 22 constitutes a back surface 2b side that is a surface opposite to the front surface 2a in the operation unit side body 2.

  The front case 21 is configured such that the operation unit 11 is exposed to the front surface 2a. The operation unit 11 has a plurality of keys 13. The plurality of keys 13 are input using a function setting operation key 131 for operating various settings, various functions such as a telephone directory function and a mail function, and a numeric keypad for inputting a telephone number and characters such as mail. The operation key 132 and a determination operation key 133 for performing determination in various operations, scrolling in the vertical and horizontal directions, and the like. In addition, a plurality of LEDs 14 (see FIG. 2) as a plurality of light emitting units are arranged inside each of the plurality of keys 13 in the operation unit side body 2.

  A predetermined function is assigned to each of the plurality of keys 13 constituting the operation unit 11 in accordance with the open / closed state of the operation unit side body 2 and the display unit side body 3 and the type of the activated application ( Key assignment). In the mobile phone 1, when a plurality of keys constituting the operation unit 11 are pressed by the user, an operation corresponding to a function assigned to each of the plurality of keys is executed.

On the front surface 2 a of the operation unit side body 2, a voice input unit 12 to which a voice uttered by the user of the mobile phone 1 during a call is input.
On the side surface of the operation unit side body 2, a side key to which a predetermined function is assigned, an interface for transmitting / receiving data to / from an external device (for example, a host device), a headphone / microphone terminal, and a removable external device A memory interface, a charging terminal for charging the battery, and the like are provided.

As shown in FIG. 1, the display unit side body 3 includes a front case 30a, a cover member 33, and a rear case 30b that form an outer shell. The front case 30 a and the cover member 33 constitute the front surface 3 a side of the display unit side body 3. The front surface 3a of the display unit side body 3 is a surface facing the operation unit side body 2 in a state where the mobile phone 1 is folded. The rear case 30b constitutes a back surface 3b side that is a surface opposite to the front surface 3a in the display unit side body 3.
The front case 30a and the cover member 33 are configured such that a display unit 34 for displaying various types of information and a voice output unit 31 for outputting voice on the other side of the call are exposed on the front surface 2a.

  The connection part 4 connects the upper end part of the operation part side housing | casing 2 and the lower end part of the display part side housing | casing 3 so that opening and closing is possible. The mobile phone 1 is configured such that the operation unit side body 2 and the display unit side body 3 and the display unit side body 3 connected via the connection unit 4 are relatively rotated (rotated), thereby displaying the operation unit side body 2 and the display. Deformed in a state in which the unit-side housing 3 is open to each other (open state, see FIG. 1) or a state in which the operation unit-side housing 2 and the display unit-side housing 3 are folded (closed state, not shown) Is done.

  The mobile phone 1 according to the present embodiment having the above-described configuration is provided with a guide function for informing an operation procedure by lighting or blinking a key to be operated by a user, and when a user does not perform an operation for a predetermined time, When the telephone 1 is in a closed state, a power saving mode is provided that reduces power consumption by turning off the display of the display unit 34 or turning off the LED 14. Then, according to the mobile phone 1 of the present embodiment, when the power saving mode is canceled, the key to be operated quickly can be lit or blinked again.

FIG. 2 is a functional block diagram showing functions of the mobile phone 1 of the present embodiment.
The mobile phone 1 according to the present embodiment has a display unit 34, an operation unit 11 having a plurality of keys 13, and a plurality of keys arranged corresponding to each of the plurality of keys 13 as a configuration for exhibiting the functions described above. The LED 14 includes a memory 15 as a storage unit, and a CPU 5 that controls various operations of the mobile phone 1. In addition, the mobile phone 1 includes a battery (not shown), and the battery supplies power to the above-described units.
The plurality of keys 13 are made of a light transmissive member. Thereby, when a predetermined LED of the plurality of LEDs 14 arranged corresponding to each of the plurality of keys 13 emits light, the light of the LED can be seen from the outside through the key corresponding to the emitted LED. Become.

  The memory 15 is used for arithmetic processing by the CPU 5. The memory 15 stores data, tables, and the like used by various applications that operate on the mobile phone 1.

The CPU 5 includes an application execution unit 51, a selection determination unit 52, a light emission drive unit 53, a display control unit 54, a power saving execution unit 55, a control unit 56, and a determination unit 57.
The application execution unit 51 executes various applications that operate on the mobile phone 1.

  The selection determination unit 52 selects the LED 14 arranged corresponding to the predetermined key from the plurality of keys 13 based on an instruction of a predetermined application executed by the application execution unit 51. Specifically, when an application relating to mail is being executed, when the user finishes inputting mail text and presses a key (for example, function setting operation key 131) for confirming the input text, the selection determination unit 52 selects the LED 14 corresponding to a key (for example, the determination operation key 133) for executing transmission as a key to be operated next.

  In addition, the selection determination unit 52 determines a light emission mode such as lighting information, blinking information, and emission color information of the selected LED 14 based on an instruction of an application executed by the application execution unit 51.

The light emission drive unit 53 drives the LED 14 selected by the selection determination unit 52 to emit light in the determined predetermined light emission mode.
The display control unit 54 causes the display unit 34 to display predetermined information according to the execution state of the application. Specifically, the display control unit 54 causes the display unit 34 to output image information and character information, and causes a backlight (not shown) provided in the display unit 34 to emit light, thereby outputting the output image information. Or character information is displayed on the display unit 34.

The power saving execution unit 55 shifts a predetermined block including the display unit 34 from the non-power saving state to the power saving state according to a predetermined condition (first condition). Specifically, the power saving execution unit 55 displays the display unit according to the first condition such as when the operation of the plurality of keys 13 is not detected for a predetermined time or when the mobile phone 1 shifts from the open state to the closed state. The backlight provided in 34 is turned off, the power supply to the display unit 34 is stopped, the display on the display unit 34 is turned off, and the LED 14 is turned off. At this time, the power saving execution unit 55 notifies the control unit 56 that the predetermined block including the display unit 34 has been shifted to the power saving state.
In this manner, in the power saving state, the control unit 56 only monitors for interruption of a predetermined event (for example, execution of an application that performs news reception or alarm notification), and stops other functions.

In addition, the power saving execution unit 55 shifts a predetermined block including the display unit 34 from the power saving state to the non power saving state according to a predetermined condition (second condition). Specifically, the power saving execution unit 55 performs operations such as when an operation of any one of the plurality of keys 13 is detected in the power saving state, or when the cellular phone 1 is changed from the closed state to the open state. In accordance with the condition 2, power supply to the display unit 34 is resumed and a backlight is emitted to resume display. That is, the power saving execution unit 55 shifts the display unit 34 from the power saving state to the non power saving state.
The power saving execution unit 55 also removes necessary blocks from the power saving state from among the blocks including the display unit 34 even when another application different from the application that has already been executed is executed in the power saving state. Transition to a power saving state. For example, when an application for performing an incoming call notification is executed when the application related to mail is executed and the state is shifted to the power saving state, the power saving execution unit 55 sets the display unit 34 and the necessary blocks to the power saving state. The incoming call is notified by shifting to the non-power-saving state. At this time, the power saving execution unit 55 notifies the control unit 56 that the display unit 34 and the predetermined block are shifted to the non power saving state.
The cellular phone 1 reduces power consumption by the above processing, and can be used for a long time.

When the predetermined LED 14 selected by the selection determining unit 52 emits light, the control unit 56 changes the state of the predetermined LED 14 selected by the selection determining unit 52 when the non-power saving state is shifted to the power saving state. First light emission information regarding the position is stored in the memory 15. In addition, the timing which memorize | stores 1st light emission information in the memory 15 is not restricted above. For example, when a predetermined LED 14 is selected by the selection determining unit 52, the control unit 56 may store information regarding the position of the selected LED 14 as the first light emission information. In this case, when the first light emission information is stored in the memory 15 and a predetermined LED 14 is newly selected by the selection determination unit 52, information on the position of the newly selected LED 14 is displayed as the first light emission information. Overwrite as.
Further, when the predetermined LED 14 is selected by the selection determining unit 52 and the light emission mode of the predetermined LED 14 is also determined, the control unit 56 sets the position and the light emission mode of the predetermined LED 14 to the first light emission. Information is stored in the memory 15.
Specifically, in a state where an application related to mail is being executed, when the LED 14 arranged corresponding to the key for executing transmission among the determination operation keys 133 is blinking in red by the guide function, power saving is performed. When the mobile phone 1 is shifted from the non-power-saving state to the power-saving state by the execution unit 55, the control unit 56 stores the light emission mode of the position of the LED 14 and the red blinking state in the memory 15 as the first light emission information. . The memory 15 is a non-volatile memory, and the first light emission information is not lost even when the power saving state is entered.

In addition, the control unit 56 determines that a predetermined block including the display unit 34 is shifted from the power saving state to the non power saving state by the power saving execution unit 55 and the first light emission information is stored in the memory 15 by the determination unit 57 described later. When the determination is made, the light emission drive unit 53 is controlled based on the first light emission information stored in the memory 15 so that the predetermined LED 14 emits light in a predetermined light emission mode.
Further, in response to the notification from the power saving execution unit 55, the control unit 56 stores in the memory 15 whether a predetermined block including the display unit 34 is in a non-power saving state or a power saving state.

  The determination unit 57 determines whether or not the first light emission information is stored in the memory 15 when the predetermined block including the display unit 34 is shifted from the power saving state to the non power saving state by the power saving execution unit 55. In addition, when the application is executed by the application execution unit 51, the determination unit 57 determines whether or not the fact that the display unit 34 is in the non-power-saving state is stored in the memory 15.

  In the mobile phone 1 according to the present embodiment having the above-described configuration, the control unit 56 stores the first light emission information selected and determined by the selection determination unit 52 in the memory 15 when shifting from the non-power-saving state to the power-saving state. Remember. Then, the control unit 56 emits light so that the predetermined LED 14 emits light based on the first light emission information stored in the memory 15 when the display unit 34 and necessary blocks are shifted from the power saving state to the non power saving state. The unit 53 is controlled. As a result, when the display unit 34 and the necessary blocks are shifted from the power saving state to the non power saving state, the selection determination unit 52 is not operated, that is, the key to be emitted to the application being executed is not confirmed. Immediately after shifting to the non-power-saving state, the light emission of the LED 14 can be controlled based on the first light emission information stored in the memory 15. Therefore, when the power saving state is canceled and the mobile phone 1 shifts to the non power saving state, the mobile phone 1 can emit the LED 14 arranged corresponding to the key to be operated quickly and with a simple configuration.

  The power saving execution unit 55 switches from the power saving state to the non power saving state when any one of the plurality of keys 13 is pressed in the power saving state based on the user operation or when the side key is pressed. Perform the migration. In addition, the power saving execution unit 55 is configured to shift from the power saving state to the non power saving state even when a predetermined event such as reception of content distributed simultaneously by BCMCS (Broadcast / Multicast Services) not based on a user operation occurs. It may be.

In addition, the selection determination unit 52 may select a plurality of LEDs 14 arranged corresponding to each of two or more keys of the plurality of keys 13. For example, in a state where a predetermined application is being executed, when the user is requested to select “Yes” or “No”, the selection determination unit 52 includes LEDs arranged corresponding to the keys corresponding to “Yes”. Is selected and the LED is determined to be lit in blue. At the same time, the selection determination unit 52 selects the LED arranged corresponding to the key corresponding to “No” and determines that this LED is lit in yellow. In this case, the control unit 56 stores the positions and light emission modes of the plurality of LEDs 14 in the memory 15 as the first light emission information.
With this configuration, the mobile phone 1 is stored in the memory 15 even when the power saving state is canceled after the selection determination unit 52 has shifted to the power saving state with the plurality of LEDs 14 selected. The plurality of LEDs 14 can emit light based on the first light emission information.

In addition, when the application execution unit 51 executes another application (for example, an application related to an alarm) that is different from a predetermined application (for example, an application related to an email) when the selection determination unit 52 is in the power saving state, Based on an instruction from the application, the LED 14 arranged corresponding to a predetermined key may be selected from the plurality of keys 13. In this case, if the determination unit 57 determines that the display unit 34 is in the power saving state in the memory 15, the control unit 56 uses the first light emission information stored in the memory 15 as the other light emission information. Based on the application instruction, the selection determination unit 52 updates the second light emission information, which is information related to the LED selected.
Further, when the determination unit 57 determines that the display unit 34 is stored in the non-power-saving state by the determination unit 57, the control unit 56 selects the LED 14 selected by the selection determination unit 52. The light emission drive unit 53 is controlled to emit light in the light emission mode determined by the determination unit 52.
Examples of other applications include applications related to incoming calls (calls, mails) and alarms with a predetermined notification operation.

  In the present embodiment, as described above, the housing includes the operation unit side housing 2 as the first housing having the operation unit 11 and the display unit side housing 3 as the second housing having the display unit 34. And a connection state in which the operation unit side body 2 and the display unit side body 3 overlap each other and a closed state in which the operation unit side body 2 and the display unit side body 3 do not overlap each other can be changed. Part 4. The mobile phone 1 further includes an open / close sensor 16 as an open / close detection unit that detects a closed state or an open state of the mobile phone 1.

  The open / close sensor 16 includes, for example, a magnet (not shown) arranged in the operation unit side body 2 and a hall element (not shown) arranged in the display unit side body 3. The control unit 56 detects the open / close state based on the detection value output from the open / close sensor 16. When the control unit 56 detects that the mobile phone 1 has shifted from the open state to the closed state, the power saving execution unit 55 shifts the mobile phone 1 to the power saving state.

More specifically, in the mobile phone 1, for example, while an application relating to mail is being executed in the open state, the application relating to incoming calls is executed as another application in a state where the mobile phone 1 is closed and shifted to the power saving state. Then, the selection determination unit 52 selects the LED 14 arranged corresponding to the call key and determines the light emission mode of the LED 14. Here, the power saving execution unit 55 shifts the predetermined block to the non-power saving state to notify the incoming call, but maintains the power saving state of the display unit 34. In this case, the control unit 56 uses the first light emission information, which is information of the LED 14 arranged corresponding to the key related to the mail operation stored in the memory 15, to the information of the LED 14 arranged corresponding to the call key. To the second light emission information.
In this state, when the mobile phone 1 is shifted to the open state, the power saving execution unit 55 shifts the power saving state of the display unit 34 to the non power saving state. Then, the control part 56 controls the light emission drive part 53 so that LED14 arrange | positioned corresponding to a call key may be light-emitted by a predetermined light emission mode based on the 2nd light emission information memorize | stored in the memory 15. FIG.

  On the other hand, while an application relating to mail is being executed in the open state of the mobile phone 1, the application relating to incoming calls is executed as another application in a state where the mobile phone 1 is left open for a predetermined time and shifted to the power saving state. In such a case, the power saving execution unit 55 shifts the display unit 34 and the predetermined block to the non-power saving state, and notifies the control unit 56 that the display unit 34 and the predetermined block have been shifted to the non power saving state. In this case, the control unit 56 controls the light emission drive unit 53 to cause the LED 14 selected by the selection determination unit 52 to emit light in the light emission mode determined by the selection determination unit 52 and also notifies the incoming call. . In addition, the control unit 56 causes the memory 15 to store information indicating that the display unit 34 and the predetermined block are in a power saving state.

  With this configuration, the mobile phone 1 is in a state of shifting to the power saving state when a predetermined application is being executed, and another application is executed while the power saving state of the display unit 34 is maintained. Even in the case, the information stored in the memory 15 can be updated to the second light emission information related to the LED 14 selected based on an instruction from another application. Therefore, after another application is executed in a state where the power saving state of the display unit 34 is maintained, even if the power saving state of the display unit 34 is canceled, based on the second light emission information stored in the memory 15, The LED 14 selected based on an instruction from another application is caused to emit light.

Moreover, the control part 56 may update the 2nd light emission information memorize | stored in the memory 15 to 1st light emission information, when execution of the other application by the application execution part 51 is complete | finished.
As described above, in the cellular phone 1 according to the present embodiment, for example, when an application relating to mail is being executed in the open state and the cellular phone 1 is closed and shifted to the power saving state, other applications relating to incoming calls When executed as an application, the selection determination unit 52 selects the LED 14 arranged corresponding to the call key and determines the light emission mode of the LED 14. Here, the power saving execution unit 55 shifts the predetermined block to the non-power saving state to notify the incoming call, but maintains the power saving state of the display unit 34. In this case, the control unit 56 uses the first light emission information, which is information of the LED 14 arranged corresponding to the key related to the mail operation stored in the memory 15, to the information of the LED 14 arranged corresponding to the call key. To the second light emission information.
In this state, if the mobile phone 1 is not opened, that is, the display unit 34 is not shifted to the non-power-saving state and the execution of the application related to the incoming call is completed, the control unit 56 stores the memory The second light emission information stored in 15 is updated again to the first light emission information.

  With this configuration, the mobile phone 1 can execute another application while the power saving state of the display unit 34 is maintained, but the power saving state of the display unit 34 is not shifted to the non-power saving state. When the execution of the other application is finished, the information stored in the memory 15 is updated to the first light emission information. As a result, when the user does not operate the mobile phone 1 until the other application ends, the predetermined light emission information is determined based on the first light emission information that is information related to the LED 14 selected based on the instruction of the original application. LED 14 can be made to emit light quickly.

Next, a specific operation of the mobile phone 1 according to the present embodiment will be described with reference to FIGS. 3 to 6 are flowcharts showing specific operations of the mobile phone 1.
First, the operation of the cellular phone 1 when the cellular phone 1 (the display unit 34 and the predetermined block) is shifted from the power saving state to the non-power saving state by the power saving execution unit 55 will be described with reference to FIG.

In the power saving state, all the plurality of LEDs 14 are turned off.
In step S <b> 1, when the display unit 34 and the predetermined block are shifted from the power saving state to the non power saving state by the power saving execution unit 55, the determination unit 57 stores the first light emission information or the second light emission information in the memory 15. It is determined whether or not. If the determination unit 57 determines that the first light emission information or the second light emission information is stored in the memory 15, the process proceeds to step S2. When the determination unit 57 determines that the first light emission information or the second light emission information is not stored in the memory 15, the process proceeds to step S3.

  In step S <b> 2, the control unit 56 controls the light emission driving unit 53 to cause the predetermined LED 14 to emit light based on the first light emission information or the second light emission information stored in the memory 15. Based on the first light emission information or the second light emission information, the predetermined LED 14 emits light in a predetermined light emission mode.

  In step S <b> 3, the control unit 56 maintains all the plurality of LEDs 14 in the extinguished state.

  Next, the operation of the mobile phone 1 when the mobile phone 1 (the display unit 34 and the predetermined block) is shifted from the non-power saving state to the power saving state by the power saving execution unit 55 will be described with reference to FIG.

  In step S <b> 11, when the display unit 34 and the predetermined block are shifted from the non-power saving state to the power saving state by the power saving execution unit 55, the control unit 56 determines whether the predetermined LED 14 emits light. Specifically, the control unit 56 determines whether a predetermined LED 14 is selected by the selection determining unit 52. If the control unit 56 determines that the predetermined LED 14 is selected, the process proceeds to step S12. If the control unit 56 determines that the predetermined LED 14 is not selected, the process proceeds to step S13.

  In step S <b> 12, the control unit 56 stores the position and light emission mode of the LED 14 selected by the selection determining unit 52 in the memory 15. In addition, the control unit 56 controls the light emission drive unit 53 to turn off the light emitting LED 14.

  In step S <b> 13, the control unit 56 keeps all the plurality of LEDs 14 off. In addition, the control unit 56 stores the power saving state of the display unit 34 and the predetermined block in the memory 15.

  Next, the operation of the mobile phone 1 when the predetermined LED 14 is selected by the selection determination unit 52 based on the instruction of the application being executed will be described with reference to FIG.

  In step S <b> 21, when a predetermined LED 14 is selected by the selection determination unit 52, the determination unit 57 determines whether or not the fact that the display unit 34 is in a non-power-saving state is stored in the memory 15. If the determination unit 57 determines that the non-power-saving state of the display unit 34 is stored in the memory 15, the process proceeds to step S22. If it is determined by the determination unit 57 that the display unit 34 is not in the power saving state in the memory 15 (the power saving state is stored), the process proceeds to step S23.

  In step S <b> 22, the control unit 56 controls the light emission driving unit 53 to cause the LED 14 selected by the selection determination unit 52 to emit light in the light emission mode determined by the selection determination unit 52. Then, the LED 14 selected by the selection determination unit 52 emits light in a predetermined light emission mode.

  In step S <b> 23, the control unit 56 stores the position and the light emission mode of the LED 14 selected by the selection determination unit 52 in the memory 15 as the first light emission information or the second light emission information.

  Next, the operation of the mobile phone 1 when the selection of the predetermined LED 14 selected by the selection determination unit 52 based on the instruction of the application being executed is canceled will be described with reference to FIG.

  In step S <b> 31, when the selection determination unit 52 cancels the selection of the predetermined LED 14, the determination unit 57 determines whether the non-power-saving state of the display unit 34 is stored in the memory 15. If it is determined by the determination unit 57 that the display unit 34 is in the non-power-saving state stored in the memory 15, the process proceeds to step S32. If the determination unit 57 determines that the display unit 34 is not in the power saving state in the memory 15 (ie, stores that the power saving state is stored), the process proceeds to step S33.

  In step S32, the control unit 56 controls the light emission drive unit 53 to turn off the light emitting LED 14, and the light emitting LED 14 is turned off.

  In step S <b> 33, the control unit 56 controls the light emission drive unit 53 so as to maintain the plurality of LEDs 14 in the extinguished state, and erases the first light emission information or the second light emission information stored in the memory 15.

  As described above, according to the mobile phone 1 of the present embodiment, the light emission control of the LED 14 can be performed without changing the operation modes of the application execution unit 51 and the selection determination unit 52 according to the power saving state or the non-power saving state. Therefore, when the power saving mode is released, the LED corresponding to the key to be operated can be quickly emitted with a simple configuration.

As mentioned above, although one Embodiment of this invention was described, this invention is not restrict | limited to embodiment mentioned above, It can change suitably.
For example, the portable electronic device of the present invention is not foldable as in the above-described embodiment, and one casing is slid in one direction from the state in which the operation unit side casing 2 and the display unit side casing 3 are overlapped. It may be a slide-type portable electronic device. The portable electronic device of the present invention is a rotary type (turn type) in which one casing is rotated around an axis line along the overlapping direction of the operation unit side casing 2 and the display unit side casing 3. It may be a portable wireless device.

  The present invention can also be applied to portable electronic devices other than cellular phones. Examples of portable electronic devices other than cellular phones include PHS (registered trademark: Personal Handyphone System), portable game machines, portable navigation devices, PDAs (Personal Digital Assistants), and notebook computers.

1 Mobile phone (mobile electronic device)
2 Operation unit side housing (first housing)
3 Display unit side housing (second housing)
4 connecting part 13 key 14 LED (light emitting part)
15 Memory (storage unit)
16 Open / close detector (open / close sensor)
51 Application Execution Unit 52 Selection Determination Unit 54 Display Control Unit 56 Control Unit

Claims (7)

A housing,
A display unit provided in the housing;
An operation unit provided on the housing and having a plurality of keys;
A plurality of light emitting units arranged corresponding to each of the plurality of keys;
An application execution unit for executing a predetermined application;
A selection determining unit that selects a light emitting unit corresponding to a predetermined key from the plurality of keys based on an instruction of a predetermined application executed by the application execution unit;
A display control unit for displaying predetermined information on the display unit according to an execution state of the predetermined application;
When the predetermined light emitting unit is selected by the selection determining unit and the predetermined light emitting unit emits light, the display unit is selected by the selection determining unit when the display unit is shifted from the non-power saving state to the power saving state. A controller that stores first light emission information related to the position of the predetermined light emitting unit in a storage unit,
When another application different from the predetermined application is executed by the application execution unit when the display unit is in a power saving state, the selection determination unit is configured to select the plurality of keys based on an instruction from the other application. Select the light emitting part corresponding to the predetermined key from
The controller is
When it is determined that the first light emission information is stored in the storage unit when the display unit is shifted from the power saving state to the non power saving state, the predetermined light emitting unit is based on the first light emission information. , And
The portable electronic device updates the first light emission information stored in the storage unit to second light emission information which is information selected by the selection determination unit based on an instruction from the other application .   The portable electronic device according to claim 1, wherein the selection determination unit selects a plurality of light emitting units arranged corresponding to each of two or more keys of the plurality of keys.   3. The mobile phone according to claim 1, wherein the selection determining unit determines a light emitting mode including at least one of lighting information, blinking information, and light emission color information of the light emitting unit selected by the selection determining unit. Electronics. Wherein, when the execution of the other applications by the application execution unit is finished, any of claims 1 to 3 for updating the second light-emitting information stored in the storage unit to the first light emitting Information the portable electronic device according to one paragraph or. The portable electronic device according to any one of claims 1 to 4, wherein the other application executed by the application execution unit is an application accompanied by a predetermined notification operation. The casing includes a first casing having the operation unit, a second casing having the display unit, a closed state in which the first casing and the second casing overlap each other, and the first casing. And an open / close detection unit that detects the closed state or the open state, and a connection unit that connects the open state in which the second housing and the second housing do not overlap with each other.
When the other application is executed by the application execution unit in a state where the closed state is detected by the open / close detection unit, the control unit displays the first light emission information stored in the storage unit. the portable electronic device according to claim 1, any one of 5 to update the second emission information. When the execution of the other application by the application execution unit is completed while the closed state is detected by the open / close detection unit, the control unit displays the second light emission information stored in the storage unit. The portable electronic device according to claim 6 , wherein the portable electronic device is updated to the first light emission information.

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