JP2006229736A - Mobile phone, method and program for controlling back light - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile phone capable of reducing power consumption, and a method and a program for controlling a back light. <P>SOLUTION: A storage part 102 stores time zone information for specifying a lighting-out time zone of the back light 106 and reference illumination for controlling the lighting and lighting-out of the back light 106. An illumination sensor 104 senses ambient illumination. A clock part 103 shows the time. A control part 101 controls the lighting and lighting-out of the back light 106 on the basis of the information of the time zone, the time, the reference illumination level and the ambient illumination level. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a mobile phone including a backlight, a backlight control method, and a program.

  2. Description of the Related Art Conventionally, a mobile phone has a backlight so that a user of the mobile phone can recognize an input / output unit that inputs and outputs various kinds of information even in the dark such as at night. In addition, since the backlight consumes a lot of power, the mobile phone has a backlight control system.

For example, in the information processing apparatus described in Patent Document 1 (Japanese Patent Application Laid-Open No. 2000-307686), the illuminance sensor is used to turn on the backlight only when the ambient brightness is darker than the set brightness. , Lower power consumption.
JP 2000-307686 A

  However, in the information processing apparatus described in Patent Document 1, even when the brightness is sufficient to recognize the display unit, a situation where the backlight is turned on may occur when the illuminance sensor is hidden by a hand or the like. . For example, in this case, since the surroundings are bright, the user of the mobile phone cannot recognize the lighting of the backlight, and thus the backlight may continue to be lit without noticing that the illuminance sensor is hidden by a hand or the like. There is. For this reason, a situation may occur in which power consumption increases.

  An object of the present invention is to provide a mobile phone, a backlight control method, and a program capable of reducing power consumption.

  In order to achieve the above object, a mobile phone of the present invention includes a clock unit that indicates the current time, an illuminance sensor that senses ambient illuminance, an input / output unit that inputs and outputs various information, and illumination of the input / output unit. Backlight, time zone storage means for storing time zone information for specifying the backlight turn-off time zone, reference illuminance storage means for storing the reference illuminance of the backlight, the time zone information, and the current time Control means for controlling lighting and extinguishing of the backlight based on the reference illuminance and the ambient illuminance.

  Further, the backlight control method of the present invention includes a clock unit that indicates the current time, an illuminance sensor that senses ambient illuminance, an input / output unit that inputs and outputs various information, and a backlight that illuminates the input / output unit. Backlight control performed by a mobile phone comprising: time zone storage means for storing time zone information for specifying the backlight turn-off time zone; and reference illuminance storage means for storing the reference illuminance of the backlight The method includes a control step of controlling lighting and extinguishing of the backlight based on the time zone information, the current time, the extinction illuminance, and the ambient illuminance.

  According to the invention, the turning on and off of the backlight is controlled based on the time zone information, the current time, the reference illuminance, and the ambient illuminance. Therefore, for example, in a dark time zone such as at night, when the input / output unit is bright enough to be recognized (for example, indoors), it is possible to prohibit the backlight from being turned on. In addition, for example, even if there is sufficient brightness to recognize the input / output unit, even if the illuminance sensor is hidden by hand and it is erroneously determined to be dark, the input / output unit is recognized. In a time zone with sufficient brightness, lighting of the backlight can be prohibited. Therefore, power consumption due to lighting of the backlight can be reduced.

  In the mobile phone of the present invention, the input / output unit includes an input detection unit that detects whether or not an input is performed by a user of the mobile phone, and the control unit includes the input detection unit, When it is detected that an input is made by a user of the mobile phone, the current time is acquired from the clock unit, the time zone information stored in the time zone storage means is acquired, and the current time is Time zone determination means for determining whether or not it is included in the extinguishing time zone specified by the time zone information, and the extinguishing time zone in which the current time is specified by the time zone information in the time zone determination means If it is determined that the ambient illuminance is not included, the ambient illuminance sensed by the illuminance sensor is acquired, and the reference illuminance stored in the reference illuminance storage means is acquired, and the ambient illuminance is the reference Is it more than illuminance? A reference illuminance determination means for determining whether full at the reference illuminance determination unit, if the illuminance of the ambient is determined to be less than the reference illuminance, and a backlight lighting means for lighting the backlight.

  Further, the backlight control method of the present invention includes an input detection step in which the input / output unit detects whether or not an input has been performed by a user of the mobile phone, and the control step includes the input detection step. When it is detected that an input is made by a user of the mobile phone, the current time is acquired from the clock unit, and the time zone information stored in the time zone storage unit is acquired, and the current time is acquired. Is determined to be included in the turn-off time zone specified by the time zone information, and the turn-off time in which the current time is specified by the time zone information in the time zone determination step When it is determined that it is not included in the belt, the ambient illuminance sensed by the illuminance sensor is acquired, and the reference illuminance stored in the reference illuminance storage means is acquired, A backlight for turning on the backlight when the ambient illuminance is determined to be less than the reference illuminance in the reference illuminance determination step and the reference illuminance determination step A lighting step.

  According to the invention, the turning on and off of the backlight is controlled based on the time when the input from the user of the mobile phone is performed. Therefore, for example, when the user of the mobile phone uses the mobile phone in a bright time zone, the backlight can be controlled according to the time when the user of the mobile phone uses the mobile phone, such as turning off the backlight. It becomes possible. Therefore, power consumption due to lighting of the backlight can be reduced.

  In the mobile phone of the present invention, the backlight lighting unit controls the illuminance of the light emitted from the backlight based on the ambient illuminance acquired from the illuminance sensor when the backlight is lit. It is desirable to include illuminance control means.

  In the backlight control method of the present invention, the backlight lighting step controls the illuminance of the light emitted from the point backlight based on the ambient illuminance acquired from the illuminance sensor when the backlight is lit. It is desirable to include a backlight illuminance control step.

  According to the invention, it is possible to prevent the backlight from being turned on with an illuminance more than necessary for recognizing the input / output unit due to the illuminance of the surroundings. Therefore, power consumption due to lighting of the backlight can be reduced.

  Further, in the mobile phone of the present invention, the control means does not detect that the input detection means has input from the user of the mobile phone for a predetermined time or longer after the backlight is turned on. In this case, it is desirable to provide an automatic turn-off control means for turning off the backlight.

  In the backlight control method of the present invention, the control step detects that input from the user of the mobile phone has been performed for a predetermined time or more in the input detection step after the backlight is turned on. If not, it is preferable to include an automatic extinguishing control step of extinguishing the backlight.

  According to the invention, it is possible to prevent the backlight from being lit when it is not necessary to turn on the backlight, for example, when the user of the mobile phone has finished using the mobile phone. Therefore, power consumption due to lighting of the backlight can be reduced.

  In the mobile phone of the present invention, the input / output unit includes a display unit that displays various information, and an input unit through which the user of the mobile phone inputs the various information, and the backlight includes the display A display unit backlight for illuminating the display unit, and an input unit backlight for illuminating the input unit, wherein the time zone storage means displays display unit time zone information for specifying a turn-off time zone of the display unit backlight. A display unit time zone storage unit for storing; and an input unit time zone storage unit for storing input unit time zone information for specifying a turn-off time zone of the input unit backlight; and the reference illuminance storage unit includes the display Display unit reference illuminance storage means for storing display unit reference illuminance for controlling turning on and off of the backlight, and input unit reference illuminance for controlling turning on and off of the input unit backlight Input unit reference illuminance storage means, and the control means based on the display unit time zone information, the current time, the display unit reference illuminance, and the ambient illuminance. Based on the display unit control means for controlling turning on and off, and the input unit time zone information, the current time, the input unit reference illuminance, and the ambient illuminance, the input unit backlight is turned on and off It is desirable to include an input unit control means for controlling.

  In the backlight control method of the present invention, the input / output unit includes a display unit that displays various types of information, and an input unit that allows the user of the mobile phone to input the various types of information. A display unit backlight that illuminates the display unit, and an input unit backlight that illuminates the input unit, wherein the time zone storage unit specifies a display unit backlight turn-off time zone. Display section time zone storage means for storing band information, and input section time zone storage means for storing input section time zone information for specifying the turn-off time zone of the input section backlight, wherein the reference illuminance storage means is Display unit reference illuminance storage means for storing display unit reference illuminance for controlling lighting and extinction of the display unit backlight, and input unit base for controlling lighting and extinction of the input unit backlight Input unit reference illuminance storage means for storing illuminance, wherein the control step is based on the display unit time zone information, the current time, the display unit reference illuminance, and the ambient illuminance. Display unit control step for controlling turning on and off of backlight, lighting of input unit backlight based on input unit time zone information, current time, input unit reference illuminance, and ambient illuminance And an input unit control step for controlling turn-off.

  According to the invention, the lighting and extinguishing of the display unit backlight are controlled based on the display unit time zone information, the current time, the display unit reference illuminance, and the ambient illuminance, and the input unit backlight is lit and The extinction is controlled based on the input unit time zone information, the current time, the input unit reference illuminance, and the ambient illuminance. Therefore, for example, the display unit backlight and the input backlight are turned on such that only the display unit backlight is turned on without turning on the input unit backlight that illuminates the input unit that can be recognized with less illuminance than the display unit. Can be controlled individually. Therefore, power consumption due to lighting of the backlight can be reduced.

  According to the present invention, it is possible to provide a mobile phone, a backlight control method, and a program capable of reducing power consumption.

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

  FIG. 1 is a block diagram showing the configuration of the mobile phone of this embodiment.

  In FIG. 1, the mobile phone includes a control unit 101, a storage unit 102, a clock unit 103, an illuminance sensor 104, an input / output unit 105, a backlight 106, and a memory 107.

  Further, the control unit 101 includes a time zone determination unit 110, a reference illuminance determination unit 111, a backlight lighting unit 112, and an automatic extinguishing unit 113.

  The memory 107 is a computer-readable recording medium and stores a program that defines the operation of the control unit 101.

  The control unit 101 is, for example, a computer, reads a program stored in the memory 107, executes the read program, and automatically turns off the time zone determination unit 110, the reference illuminance determination unit 111, the backlight lighting unit 112, and the like. The unit 113 is realized.

  The storage unit 102 stores time zone information for specifying a time zone for turning off the backlight 106 and a reference illuminance for controlling turning on and off of the backlight 106. In addition, it is desirable that the user of the mobile phone can input these pieces of information stored in the storage unit 102 using the input / output unit 105.

  The time zone information is, for example, a turn-off time zone or a lighting time zone. In the case of the lighting time zone, the time zone that is not the lighting time zone is the extinguishing time zone. In the present embodiment, the turn-off time zone is used as the time zone information.

  The clock unit 103 indicates the current time.

  The illuminance sensor 104 senses the illuminance around the mobile phone.

  The input / output unit 105 displays various types of information (for example, telephone numbers) and receives various types of information from the user of the mobile phone.

  The input / output unit 105 detects whether or not an input has been made by a user of the mobile phone. When the input / output unit 105 detects that an input has been made by the user of the mobile phone, information indicating that the user of the mobile phone has made an input It outputs to the control part 101 (specifically, the time zone determination part 110 and the automatic light extinction part 113).

  When control unit 101 receives information indicating that the user of the mobile phone has performed input from the input / output unit, control unit 101 detects that the user of the mobile phone has performed input.

  When the control unit 101 detects that the user of the mobile phone performs input, the control unit 101 acquires time zone information and reference illuminance from the storage unit 102, acquires the current time from the clock unit 103, and from the illuminance sensor 104. Get the illuminance around the mobile phone.

  The control unit 101 controls lighting and extinguishing of the backlight 106 based on the acquired time zone information, reference illuminance, current time, and ambient illuminance.

  For example, the control unit 101 controls the backlight 106 as follows.

  When the time zone determination unit 110 receives information indicating that the user of the mobile phone has input from the input / output unit 105, the time zone determination unit 110 acquires the current time from the clock unit 103, and obtains time zone information from the storage unit 102. get.

  Further, the time zone determination unit 110 is included in the turn-off time zone specified by the time zone information based on the current time acquired from the clock unit 103 and the time zone information acquired from the storage unit 102. It is determined whether or not.

  When the current time is included in the turn-off time zone specified by the time zone information, the time zone determination unit 110 turns off the backlight 106.

  On the other hand, when the current time is not included in the turn-off time zone specified by the time zone information, the time zone determination unit 110 outputs an operation command to the reference illuminance determination unit 111.

  When the reference illuminance determination unit 111 receives an operation command from the time zone determination unit 110, the reference illuminance determination unit 111 acquires the illuminance around the mobile phone sensed by the illuminance sensor 104 from the illuminance sensor 104, and also stores the reference illuminance from the storage unit 102. To get.

  Further, the reference illuminance determination unit 111 determines whether the illuminance around the mobile phone is greater than or less than the reference illuminance based on the illuminance around the mobile phone acquired from the illuminance sensor 104 and the reference illuminance acquired from the storage unit 102. Determine.

  When the illuminance around the mobile phone is greater than or equal to the reference illuminance, the reference illuminance determination unit 111 turns off the backlight 106.

  On the other hand, when the illuminance around the mobile phone is less than the reference illuminance, the reference illuminance determination unit 111 outputs an operation command to the backlight lighting unit 112.

  When the backlight lighting unit 112 receives an operation command from the reference illuminance determination unit 111, the backlight lighting unit 112 specifies the illuminance of light emitted from the backlight 106 based on the illuminance around the mobile phone acquired from the illuminance sensor 104, and the specified illuminance The backlight 106 is turned on.

  For example, the storage unit 102 further stores illuminance specification information for specifying the illuminance of light emitted from the backlight 106, and the backlight lighting unit 112 acquires the illuminance specification information from the storage unit 102. This is a method of designating the illuminance of light emitted based on the obtained illuminance designation information and the illuminance around the mobile phone.

  FIG. 6 is a diagram illustrating an example of the configuration of the illuminance designation information.

  In FIG. 6, the illuminance designation information is information relating the illuminance around the mobile phone and the illuminance of light emitted from the backlight 106. For example, when the illuminance sensor 104 detects the illuminance around the mobile phone as 50 lux, the control unit 101 uses the illuminance designation information to designate the illuminance of the light emitted from the backlight 106 as 70 lux. Turns on the backlight 106 with 70 lux light.

  Note that the association shown in FIG. 6 is merely an example, and is not limited to this association.

  Returning to FIG. When the automatic light-off unit 101 does not accept information indicating that the user of the mobile phone has input from the input / output unit 105 for a predetermined time (for example, 10 seconds) or longer after the backlight 106 is turned on, 106 is turned off.

  FIG. 2 shows a mobile phone in a case where a display unit backlight that illuminates a display unit that displays various types of information and an input unit backlight that illuminates an input unit that receives various types of information from a user of the mobile phone It is the block diagram which showed the structure of.

  2, the mobile phone includes a control unit 101, a storage unit 102, a clock unit 103, an illuminance sensor 104, a memory 107, a display unit backlight 201, an input unit backlight 202, a display unit 203, and an input unit 204.

  The control unit 101 includes a display unit control unit 210 and an input unit control unit 211.

  The memory 107 is a computer-readable recording medium and stores a program that defines the operation of the control unit 101.

  The control unit 101 is, for example, a computer, reads a program stored in the memory 107, executes the read program, and implements a display unit control unit 210 and an input unit control unit 211.

  The storage unit 102 includes display unit time zone information for specifying a turn-off time zone of the display unit backlight 201, a display unit reference illuminance for controlling turning on and off of the display unit backlight 201, and a turn-off time of the input unit backlight 202. The input unit time zone information for specifying the band and the input unit reference illuminance for controlling turning on and off of the input unit backlight 202 are stored.

  The clock unit 103 indicates the current time.

  The illuminance sensor 104 senses the illuminance around the mobile phone.

  The display unit 203 displays various information (for example, telephone numbers).

  The input unit 204 receives various information from the user of the mobile phone.

  The input unit 204 detects whether or not an input has been made by the user of the mobile phone. When the input unit 204 detects that an input has been made by the user of the mobile phone, it displays information indicating that the user of the mobile phone has made an input To the unit control unit 210 and the input unit control unit 211.

  When the display unit control unit 210 and the input unit control unit 211 receive information indicating that the user of the mobile phone has performed input from the input unit 204, the display unit control unit 210 and the input unit control unit 211 detect that the user of the mobile phone has performed input.

  When the display unit control unit 210 detects that the user of the mobile phone has input, the display unit control unit 210 acquires the display unit time zone information and the display unit reference illuminance from the storage unit 102, and acquires the current time from the clock unit 103. Then, the illuminance around the mobile phone is acquired from the illuminance sensor 104.

  When the input unit control unit 211 detects that the user of the mobile phone has input, the input unit control unit 211 acquires the input unit time zone information and the input unit reference illuminance from the storage unit 102, and acquires the current time from the clock unit 103. Then, the illuminance around the mobile phone is acquired from the illuminance sensor 104.

  The display control unit 210 controls lighting and extinguishing of the display unit backlight 201 based on the acquired display unit time zone information, display unit reference illuminance, current time, and ambient illuminance.

  The input unit control unit 210 controls turning on and off of the input unit backlight 202 based on the acquired input unit time zone information, the input unit reference illuminance, the current time, and the ambient illuminance.

  For example, the display unit control unit 210 controls the display unit backlight 202 as follows.

  When the display unit control unit 210 detects that the user of the mobile phone has input, the display unit control unit 210 acquires the current time from the clock unit 103 and also acquires display unit time zone information from the storage unit 102.

  In addition, the display unit control unit 210 uses the display unit time zone information to specify the current time based on the current time acquired from the clock unit 103 and the display unit time zone information acquired from the storage unit 102. It is determined whether or not it is included in the band.

  When the current time is included in the extinguishing time zone specified by the display unit time zone information, the display unit control unit 210 turns off the display unit backlight 201.

  On the other hand, when the current time is not included in the turn-off time zone specified by the display unit time zone information, the display unit control unit 210 obtains the illuminance around the mobile phone detected by the illuminance sensor 104 from the illuminance sensor 104. At the same time, the display unit reference illuminance is acquired from the storage unit 102.

  In addition, the display unit control unit 210 determines that the illuminance around the mobile phone is based on the illuminance around the mobile phone acquired from the illuminance sensor 104 and the display unit reference illuminance acquired from the storage unit 102. Judge whether it is above or below.

  When the illuminance around the mobile phone is equal to or higher than the display unit reference illuminance, the display unit control unit 210 turns off the display unit backlight 201.

  On the other hand, when the illuminance around the mobile phone is less than the reference illuminance of the display unit, the display unit control unit 210 illuminates the light emitted from the display unit backlight 202 based on the illuminance around the mobile phone acquired from the illuminance sensor 104. And the display unit backlight 201 is turned on with the specified illuminance.

  For example, the input unit control unit 211 controls the input unit backlight 202 as follows.

  When the input unit control unit 211 detects that the user of the mobile phone performs input, the input unit control unit 211 acquires the current time from the clock unit 103 and also acquires input unit time zone information from the storage unit 102.

  Further, the input unit control unit 211 is configured to turn off the current time specified by the input unit time zone information based on the input unit time zone information acquired from the storage unit 102 and the current time acquired from the clock unit 103. It is determined whether or not it is included in the band.

  When the current time is included in the extinguishing time zone specified by the input unit time zone information, the input unit control unit 211 turns off the input unit backlight 202.

  On the other hand, when the current time is not included in the turn-off time zone specified by the input unit time zone information, the input unit control unit 211 determines the illuminance around the mobile phone sensed by the illuminance sensor 104 from the illuminance sensor 104. In addition to the acquisition, the input unit reference illuminance is acquired from the storage unit 102.

  Further, the input unit control unit 211 determines that the ambient illuminance around the mobile phone is based on the illuminance around the mobile phone acquired from the illuminance sensor 104 and the input unit reference illuminance acquired from the storage unit 102. Judge whether it is above or below.

  When the illuminance around the mobile phone is greater than or equal to the input unit reference illuminance, the input unit control unit 211 turns off the input unit backlight 202.

  On the other hand, when the illuminance around the mobile phone is less than the input unit reference illuminance, the input unit control unit 211 illuminates the light emitted from the input unit backlight 202 based on the illuminance around the mobile phone acquired from the illuminance sensor 104. And the input unit backlight 202 is turned on with the specified illuminance.

  FIG. 3 is a flowchart showing the operation of this embodiment. Specifically, it is a flowchart showing a backlight control operation in the mobile phone shown in FIG.

  In step 301, the input / output unit 105 waits for various information (for example, a telephone number) to be input from the user of the mobile phone. Thereafter, step 302 is executed.

  In step 302, the input / output unit 105 detects whether or not an input has been made by the user of the mobile phone.

  When it is detected that an input has been made by the user of the mobile phone, the input / output unit 105 outputs information indicating that the user of the mobile phone has made an input to the time zone determination unit 110 and the automatic extinguishing unit 113, and then the step On the other hand, if it is detected that no input is made by the user of the mobile phone, step 303 is executed.

  In step 303, the automatic light off unit 113 determines whether or not the backlight 106 is turned off.

  If the backlight 106 is off, step 304 is executed, whereas if the backlight 106 is not off, step 305 is executed.

  In step 304, the automatic turn-off unit 113 turns off the backlight 106.

  In step 305, whether or not a predetermined time (for example, 10 seconds) or more has elapsed since the automatic turn-off unit 113 last received information indicating that the user of the mobile phone made an input from the input / output unit 105. Determine whether or not.

  Step 306 is executed when a predetermined time or more has elapsed since the last reception of information indicating that the user of the mobile phone made an input from the input / output unit 105, while the user of the mobile phone If information indicating that the input has been performed has not been received since the last time, step 302 is executed.

  In step 306, the automatic light off unit 113 turns off the backlight 106.

  In step 307, the time zone determination unit 110 acquires the current time from the clock unit 103 and also acquires time zone information from the storage unit 102.

  Whether the time zone determination unit 110 is included in the turn-off time zone specified by the time zone information based on the current time acquired from the clock unit 103 and the time zone information acquired from the storage unit 102 Determine whether.

  If the current time is included in the turn-off time zone specified by the time zone information, step 308 is executed. On the other hand, if the current time is not included in the turn-off time zone specified by the time zone information, the time zone determination unit 110 Outputs an operation command to the reference illuminance determination unit 111, and then step 309 is executed.

  In step 308, the time zone determination unit 110 turns off the backlight 106.

  In step 309, the reference illuminance determination unit 111 receives an operation command from the time zone determination unit 110, acquires the illuminance around the mobile phone from the illuminance sensor 104, and acquires the reference illuminance from the storage unit 102.

  The reference illuminance determination unit 111 determines whether or not the illuminance around the mobile phone is greater than or equal to the reference illuminance based on the illuminance around the mobile phone acquired from the illuminance sensor 104 and the reference illuminance acquired from the storage unit 102. To do.

  If the illuminance around the mobile phone is greater than or equal to the reference illuminance, step 310 is executed. On the other hand, if the illuminance around the mobile phone is not greater than or equal to the reference illuminance, the reference illuminance determination unit 111 outputs an operation command to the backlight lighting unit 112 Thereafter, step 311 is executed.

  In step 310, the reference illuminance determination unit 111 turns off the backlight 106.

  In step 311, the backlight lighting unit 112 receives an operation command from the reference illuminance determination unit 111, specifies the illuminance of light emitted from the backlight 106 based on the ambient illuminance acquired from the illuminance sensor 104, and the specified illuminance The backlight 106 is turned on. Thereafter, step 302 is executed.

  4 and 5 are flowcharts showing the backlight control operation in the mobile phone having the configuration shown in FIG. Specifically, FIG. 4 is a flowchart showing the control operation of the display unit backlight 201, and FIG. 5 is a flowchart showing the control operation of the input unit backlight 202.

  First, the control operation of the display unit backlight 201 will be described with reference to FIG.

  In FIG. 4, in step 401, the input unit 204 waits for various information (for example, a telephone number) to be input from the user of the mobile phone. Thereafter, step 402 is executed.

  In step 402, the input unit 204 detects whether or not an input has been made by the user of the mobile phone.

  When it is detected that an input is made from the user of the mobile phone, the input unit 204 outputs information indicating that the user of the mobile phone has made an input to the display unit control unit 210, and then step 407 is executed. On the other hand, if it is detected that no input has been made by the user of the mobile phone, step 403 is executed.

  In step 403, the display control unit 210 determines whether or not the display backlight 201 is turned off.

  If the display unit backlight 201 is turned off, step 404 is executed. On the other hand, if the display unit backlight 201 is not turned off, step 405 is executed.

  In step 404, the display unit control unit 210 turns off the display unit backlight 201.

  In step 405, whether or not a predetermined time (for example, 10 seconds) has passed since the display unit control unit 210 last received information indicating that the user of the mobile phone made an input from the input unit 204. Determine whether or not.

  Step 406 is executed when a predetermined time or more has elapsed since the last reception of information indicating that the user of the mobile phone performed input from the input unit 204, while the user of the mobile phone inputs the information. Step 402 is executed when the predetermined time or more has not elapsed since the last time the information indicating that it has been received is received.

  In step 406, the display control unit 210 turns off the display backlight 201.

  In Step 407, the display control unit 210 acquires the current time from the clock unit 103 and also acquires display unit time zone information from the storage unit 102.

  Based on the current time acquired from the clock unit 103 and the display unit time zone information acquired from the storage unit 102 by the display unit control unit 210, the current time is set to the turn-off time zone specified by the display unit time zone information. It is determined whether or not it is included.

  If the current time is included in the turn-off time zone specified by the display unit time zone information, step 408 is executed, whereas if the current time is not included in the turn-off time zone specified by the display unit time zone information, 409 is executed.

  In step 408, the display unit control unit 210 turns off the display unit backlight 201.

  In step 409, the display control unit 210 acquires the illuminance around the mobile phone from the illuminance sensor 104 and also acquires the display unit reference illuminance from the storage unit 102.

  Based on the illuminance around the mobile phone acquired from the illuminance sensor 104 and the display unit reference illuminance acquired from the storage unit 102, the display unit control unit 210 determines whether the illuminance around the mobile phone is equal to or higher than the display unit reference illuminance. Determine whether or not.

  If the ambient illuminance is greater than or equal to the display unit reference illuminance, step 410 is executed, whereas if the ambient illuminance is not greater than or equal to the display unit reference illuminance, step 411 is executed.

  In step 410, the display unit control unit 210 turns off the display unit backlight 201.

  In step 411, the display control unit 210 specifies the illuminance of light emitted from the display unit backlight 201 based on the ambient illuminance acquired from the illuminance sensor 104, and turns on the display unit backlight 201 with the specified illuminance. . Thereafter, step 402 is executed.

  Next, the control operation of the input unit backlight 202 will be described with reference to FIG.

  In FIG. 5, in step 501, the input unit 204 waits for various information (for example, a telephone number) to be input from the user of the mobile phone. Thereafter, step 502 is executed.

  In step 502, the input unit 204 detects whether or not an input has been made by the user of the mobile phone.

  When it is detected that an input is made from the user of the mobile phone, the input unit 204 outputs information indicating that the user of the mobile phone has made an input to the input unit control unit 211, and then step 507 is executed. On the other hand, if it is detected that no input has been made by the user of the mobile phone, step 503 is executed.

  In step 503, the input unit control unit 211 determines whether or not the input unit backlight 202 is turned off.

  If the input unit backlight 202 is turned off, step 504 is executed. If the input unit backlight 202 is not turned off, step 505 is executed.

  In step 504, the input unit control unit 211 turns off the input unit backlight 202.

  In step 505, whether or not a predetermined time (for example, 10 seconds) or more has elapsed since the input unit control unit 211 last received information indicating that the user of the mobile phone input from the input unit 204. Determine whether or not.

  If a predetermined time or more has elapsed since the last reception of information indicating that the user of the mobile phone performed input from the input unit 204, step 506 is executed, while the user of the mobile phone inputs Step 502 is executed if the predetermined time or more has not elapsed since the last time the information indicating that it has been received is received.

  In step 506, the input unit control unit 211 turns off the input unit backlight 202.

  In step 507, the input unit control unit 211 acquires the current time from the clock unit 103 and also acquires input unit time zone information from the storage unit 102.

  Based on the current time acquired from the clock unit 103 and the input unit time zone information acquired from the storage unit 102 by the input unit control unit 211, the current time is set to the turn-off time zone specified by the input unit time zone information. It is determined whether or not it is included.

  If the current time is included in the extinguishing time zone specified by the input part time zone information, step 508 is executed, whereas if the current time is not included in the extinguishing time zone specified by the input part time zone information, the step 509 is executed.

  In step 508, the input unit control unit 211 turns off the input unit backlight 202.

  In step 509, the input unit control unit 211 acquires the illuminance around the mobile phone from the illuminance sensor 104 and acquires the input unit reference illuminance from the storage unit 102.

  Based on the illuminance around the mobile phone acquired from the illuminance sensor 104 and the input unit reference illuminance acquired from the storage unit 102, the input unit controller 211 determines whether the illuminance around the mobile phone is equal to or greater than the input unit reference illuminance. Determine whether or not.

  If the ambient illuminance is greater than or equal to the input unit reference illuminance, Step 510 is executed, whereas if the ambient illuminance is less than the input unit reference illuminance, Step 511 is executed.

  In step 510, the input unit control unit 211 turns off the input unit backlight 202.

  In step 511, the input unit control unit 211 specifies the illuminance of light emitted from the input unit backlight 202 based on the ambient illuminance acquired from the illuminance sensor 104, and turns on the input unit backlight 202 with the specified illuminance. . Thereafter, step 502 is executed.

  According to the present embodiment, the clock unit 103 that indicates the current time, the illuminance sensor 104 that senses ambient illuminance, the input / output unit 105 that inputs and outputs various information, the backlight 106 that illuminates the input / output unit, A storage unit 102 that stores time zone information for specifying a time zone for turning off the backlight 106 and a reference illuminance for controlling turning on and off of the backlight, time zone information, current time, reference illuminance, and surroundings A control unit that controls lighting and extinguishing of the backlight 106 based on the illuminance is provided.

  Thereby, lighting and extinguishing of the backlight are controlled based on the time zone information, the current time, the reference illuminance, and the ambient illuminance. Therefore, for example, in a dark time zone such as at night, when the input / output unit is bright enough to be recognized (for example, indoors), it is possible to prohibit the backlight from being turned on. In addition, for example, even if there is sufficient brightness to recognize the input / output unit, even if the illuminance sensor is hidden by hand and it is erroneously determined to be dark, the input / output unit is recognized. In a time zone with sufficient brightness, lighting of the backlight can be prohibited. Therefore, power consumption due to lighting of the backlight can be reduced.

  Further, according to the present embodiment, the input / output unit 105 detects whether or not an input has been made by the user of the mobile phone.

  When the input / output unit 105 detects that an input has been made by the user of the mobile phone, the time zone determination unit 110 acquires the current time from the clock unit 103 and the time zone information from the storage unit 102, It is determined whether or not the current time is included in the turn-off time zone specified by the time zone information. The reference illuminance determination unit 111 determines the ambient illuminance detected by the illuminance sensor 104 when the time zone determination unit 110 determines that the current time is not included in the turn-off time zone specified by the time zone information. While acquiring, the reference | standard illumination intensity memorize | stored in the memory | storage part 102 is acquired, and it is determined whether surrounding illumination intensity is more than a reference illumination intensity or less.

  The backlight lighting unit turns on the backlight 106 when the reference illuminance determination unit 111 determines that the surrounding illuminance is less than the reference illuminance.

  Thereby, lighting and extinguishing of the backlight are controlled based on the time when the user of the mobile phone performs input. Therefore, for example, when the user of the mobile phone uses the mobile phone in a bright time zone, the backlight can be controlled according to the time when the user of the mobile phone uses the mobile phone, such as turning off the backlight. It becomes possible. Therefore, power consumption due to lighting of the backlight can be reduced.

  Further, according to the present embodiment, the control unit 102 designates the illuminance emitted by the backlight 106 based on the ambient illuminance acquired from the illuminance sensor 104, and turns on the backlight with the designated illuminance.

  Accordingly, it is possible to prevent the backlight from being turned on with an illuminance more than necessary for recognizing the input / output unit depending on the illuminance of the surroundings. Therefore, power consumption due to lighting of the backlight can be reduced.

  Further, according to the present embodiment, the control unit 101 does not receive information indicating that the user of the mobile phone has input from the input / output unit 105 for a predetermined time or longer after the backlight 106 is turned on. The backlight 107 is turned off.

  Thereby, when it is not necessary to turn on the backlight, for example, when the user of the mobile phone has finished using the mobile phone, it is possible to prevent the backlight from being turned on. Therefore, power consumption due to lighting of the backlight can be reduced.

  Further, according to the present embodiment, the display unit 203 displays various types of information, the input unit 204 receives various types of information from the user on the mobile phone, the display unit backlight 201 illuminates the display unit 203, and the input unit The backlight 202 illuminates the input unit 204.

  The storage unit 102 stores display unit time zone information, input unit time zone information, current time, display unit reference illuminance, input unit reference illuminance, and ambient illuminance.

  The display control unit 210 controls the display unit backlight 201 to be turned on and off based on the display unit time zone information, the current time, the display unit reference illuminance, and the ambient illuminance, and the input unit control unit 211 The input unit backlight 202 is turned on and off based on the input unit time zone information, the current time, the input unit reference illuminance, and the ambient illuminance.

  Thereby, the lighting and extinguishing of the display unit backlight 201 are controlled based on the display unit time zone information, the current time, the display unit reference illuminance, and the ambient illuminance, and the input unit backlight 202 is turned on and off. Is controlled based on the input unit time zone information, the current time, the input unit reference illuminance, and the ambient illuminance. Therefore, for example, the display unit backlight and the input backlight are turned on such that only the display unit backlight is turned on without turning on the input unit backlight that illuminates the input unit that can be recognized with less illuminance than the display unit. Can be controlled individually. Therefore, power consumption due to lighting of the backlight can be reduced.

  In the embodiment described above, the illustrated configuration is merely an example, and the present invention is not limited to the configuration.

It is the block diagram which showed the structure of the mobile telephone of a present Example. It is the block diagram which showed the structure of the mobile telephone at the time of providing a display part backlight and an input part backlight separately of a present Example. It is the flowchart which showed the control operation of the backlight of a present Example. It is the flowchart which showed the control operation of the display part backlight of a present Example. It is the flowchart which showed the control operation of the input part backlight of a present Example. It is the figure which showed an example of the structure of the illumination intensity designation | designated information of a present Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Control part 102 Memory | storage part 103 Clock part 104 Illuminance sensor 105 Display part 106 Input part 107 Backlight 108 Memory 110 Time zone determination part 111 Reference | standard illumination determination part 112 Backlight lighting part 113 Automatic light-off part 201 Display part backlight 202 Input part Backlight 203 Display unit 204 Input unit 210 Display unit control unit 211 Input unit control unit

Claims (15)

A clock that indicates the current time,
An illuminance sensor that senses ambient illuminance;
An input / output unit for inputting / outputting various information;
A backlight for illuminating the input / output unit;
A time zone storage means for storing time zone information for specifying an off time zone of the backlight;
Reference illuminance storage means for storing reference illuminance for controlling turning on and off of the backlight;
Control means for controlling turning on and off of the backlight based on the time zone information, the current time, the reference illuminance, and the ambient illuminance.
Mobile phone equipped with. The mobile phone according to claim 1,
The input / output unit includes input detection means for detecting whether or not an input is performed from a user of the mobile phone,
The control means includes
When the input detection unit detects that an input is made by a user of the mobile phone, the current time is acquired from the clock unit, and the time zone information stored in the time zone storage unit is obtained. Time zone determination means for acquiring and determining whether or not the current time is included in a turn-off time zone specified by the time zone information;
When it is determined by the time zone determination means that the current time is not included in the turn-off time zone specified by the time zone information, the ambient illuminance sensed by the illuminance sensor is acquired, Obtaining the reference illuminance stored in the reference illuminance storage means, and determining whether the ambient illuminance is greater than or less than the reference illuminance; and
When the reference illuminance determination means determines that the ambient illuminance is less than the reference illuminance, backlight lighting means for turning on the backlight;
Mobile phone equipped with. The mobile phone according to claim 2, wherein
The backlight lighting means is
When turning on the backlight, backlight illuminance control means for controlling the illuminance of the light emitted from the backlight based on the ambient illuminance acquired from the illuminance sensor,
Mobile phone equipped with. The mobile phone according to claim 1,
The control means includes
After turning on the backlight, if the input detection means does not detect that the input from the user of the mobile phone has been performed for a predetermined time or more, automatic turn-off control means for turning off the backlight;
Mobile phone equipped with. The mobile phone according to claim 1,
The input / output unit is
A display unit for displaying various information;
An input unit through which the user of the mobile phone inputs the various information;
With
The backlight is
A display backlight for illuminating the display;
An input unit backlight for illuminating the input unit;
With
The time zone storage means is
Display unit time zone storage means for storing display unit time zone information for specifying an extinguishing time zone of the display unit backlight;
An input unit time zone storage means for storing input unit time zone information for specifying an extinguishing time zone of the input unit backlight;
With
The reference illuminance storage means is
Display unit reference illuminance storage means for storing display unit reference illuminance for controlling turning on and off of the display unit backlight;
Input unit reference illuminance storage means for storing input unit reference illuminance for controlling turning on and off of the input unit backlight;
With
The control means includes
Display unit control means for controlling turning on and off of the display unit backlight based on the display unit time zone information, the current time, the display unit reference illuminance, and the ambient illuminance.
Based on the input unit time zone information, the current time, the input unit reference illuminance, and the ambient illuminance, an input unit control means for controlling turning on and off of the input unit backlight;
Mobile phone equipped with. A clock unit that indicates the current time, an illuminance sensor that senses ambient illuminance, an input / output unit that inputs and outputs various information, a backlight that illuminates the input / output unit, and a time period during which the backlight is turned off A backlight control method performed by a mobile phone comprising: time zone storage means for storing time zone information; and reference illuminance storage means for storing reference illuminance for controlling turning on and off of the backlight. ,
A control step of controlling lighting and extinguishing of the backlight based on the time zone information, the current time, the extinction illuminance, and the ambient illuminance;
Control method of backlight including. In the backlight control method according to claim 6,
An input detecting step for detecting whether or not the input / output unit is input from a user of the mobile phone;
The control step includes
When it is detected in the input detection step that an input is made by a user of the mobile phone, the current time is acquired from the clock unit, and the time zone information stored in the time zone storage means is acquired. Obtaining a time zone determining step for determining whether or not the current time is included in a turn-off time zone specified by the time zone information;
In the time zone determination step, when it is determined that the current time is not included in the turn-off time zone specified by the time zone information, the ambient illuminance sensed by the illuminance sensor is acquired, A reference illuminance determination step of acquiring the reference illuminance stored in the reference illuminance storage means and determining whether the ambient illuminance is greater than or less than the reference illuminance;
In the reference illuminance determination step, when the ambient illuminance is determined to be less than the reference illuminance, a backlight lighting step of turning on the backlight;
Control method of backlight including. In the backlight control method according to claim 7,
The backlight lighting step includes:
When turning on the backlight, based on the ambient illuminance acquired from the illuminance sensor, a backlight illuminance control step for controlling the illuminance of the light emitted by the point backlight,
Control method of backlight including. In the backlight control method according to claim 6,
The control step includes
After turning on the backlight, if the input detection step does not detect that an input has been made from the user of the mobile phone for a predetermined time or more, an automatic turn-off control step for turning off the backlight.
Control method of backlight including. In the backlight control method according to claim 6,
The input / output unit includes a display unit that displays various types of information, and an input unit through which the user of the mobile phone inputs the various types of information, and the backlight includes a display unit backlight that illuminates the display unit, An input unit backlight that illuminates the input unit, and the time zone storage unit includes a display unit time zone storage unit that stores display unit time zone information for specifying a turn-off time zone of the display unit backlight. An input part time zone storage means for storing input part time zone information for specifying an extinguishing time zone of the input part backlight, and the reference illuminance storage means controls turning on and off of the display part backlight. Display unit reference illuminance storage means for storing display unit reference illuminance for performing, and input unit reference illuminance storage means for storing input unit reference illuminance for controlling turning on and off of the input unit backlight Equipped with a,
The control step includes a display unit control step for controlling lighting and extinction of the display unit backlight based on the display unit time zone information, the current time, the display unit reference illuminance, and the ambient illuminance.
Based on the input unit time zone information, the current time, the input unit reference illuminance, and the ambient illuminance, an input unit control step for controlling turning on and off of the input unit backlight;
Control method of backlight including. A clock unit that indicates the current time, an illuminance sensor that senses ambient illuminance, an input / output unit that inputs and outputs various information, a backlight that illuminates the input / output unit, and a time period during which the backlight is turned off A program for causing a computer connected to time zone storage means for storing time zone information and reference illuminance storage means for storing reference illuminance for controlling turning on and off of the backlight to execute a backlight control process Because
Control processing for controlling lighting and extinguishing of the backlight based on the time zone information, the current time, the reference illuminance, and the ambient illuminance.
A program for causing the computer to execute a backlight control process including: The program according to claim 11,
An input detection process for detecting that the user of the mobile phone has made an input,
The control process is
In the input detection process, when it is detected that the user of the mobile phone has made an input, the current time is acquired from the clock unit, and the time zone information stored in the time zone storage means A time zone determination process for determining whether or not the current time is included in a turn-off time zone specified by the time zone information;
In the time zone determination process, when it is determined that the current time is not included in the turn-off time zone specified by the time zone information, while obtaining the ambient illuminance sensed by the illuminance sensor, Obtaining the reference illuminance stored in the reference illuminance storage means, and determining whether the ambient illuminance is greater than or less than the reference illuminance; and
In the reference illuminance determination process, when the ambient illuminance is determined to be less than the reference illuminance, a backlight lighting process for lighting the backlight;
Including programs. The program according to claim 12,
The backlight lighting process is
When lighting the backlight, based on the ambient illuminance acquired from the illuminance sensor, backlight illuminance control processing for controlling the illuminance of the light emitted by the backlight,
Including programs. The program according to claim 11,
The control process is
After turning on the backlight, in the input detection process, if it is not detected that the user of the mobile phone has made an input for a predetermined time or more, an automatic turn-off control process for turning off the backlight,
Including programs. The program according to claim 11,
The input / output unit includes a display unit that displays various types of information, and an input unit through which the user of the mobile phone inputs the various types of information, and the backlight includes a display unit backlight that illuminates the display unit, An input unit backlight that illuminates the input unit, and the time zone storage unit includes a display unit time zone storage unit that stores display unit time zone information for specifying a turn-off time zone of the display unit backlight. An input unit time zone storage unit that stores input unit time zone information for specifying a time period during which the input unit backlight is turned off, and the reference illuminance storage unit controls turning on and off of the display unit backlight. Display unit reference illuminance storage means for storing display unit reference illuminance for performing, and input unit reference illuminance storage means for storing input unit reference illuminance for controlling turning on and off of the input unit backlight Equipped with a,
The control process includes a display unit control process for controlling lighting and extinction of the display unit backlight based on the display unit time zone information, the current time, the display unit reference illuminance, and the ambient illuminance.
Based on the input unit time zone information, the current time, the input unit reference illuminance, and the ambient illuminance, an input unit control process for controlling turning on and off of the input unit backlight;
Including programs.

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