JP3208294B2 - Display device and mobile terminal - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a display device, and more particularly to a display device used for a portable terminal.

[0002]

2. Description of the Related Art Conventionally, various developments of portable communication devices including a portable telephone device have been advanced. For example, 1
A second-generation cordless telephone system (Personal Handy Phone System: PHS) has been put into practical use as a mobile telephone system that can be used in homes, offices, and outdoors in all situations using one mobile phone. I have. Here, a conventional LCD display device in a mobile phone device or the like is provided with a backlight function of illuminating from the back surface of the display surface in order to increase the display capability. Thus, according to the mobile phone device having the backlight function, the key operation can be performed even in a dark place. Further, as disclosed in Japanese Patent Application Laid-Open No. 3-296123, a portable information processing apparatus is provided with switching means for turning on and off power supply of a power supply to a light source for illuminating a liquid crystal display means from a back surface, and when necessary, Are disclosed.

[0003]

However, irradiating the backlight causes a problem of increasing power consumption, and this problem is particularly important in an apparatus requiring a battery such as a portable terminal. In addition, Japanese Patent Application Laid-Open No.
Even if the switching means as shown in the portable information processing device of No.-296123 is applied to a portable terminal such as a portable telephone device, the switching means of this application performs ON / OFF control of the light source in units of the entire display area. Therefore, an area other than the display area required by the user is also illuminated, and wasteful power is consumed. Unnecessarily consuming power shortens the continuous operation time of the mobile terminal, and in particular, in the case of a mobile phone device, also causes a reduction in continuous talk time and continuous standby time. Therefore, an object of the present invention is to provide a display device and a mobile terminal that can further reduce power consumption in a mobile terminal such as a mobile phone device.

[0004]

The present invention SUMMARY OF] is a one that is created in order to solve the above problems, the first image
It has a display unit and a lid that covers a part of the image display unit.
A display device, the image display unit is divided into a plurality of display regions, a plurality of lighting means for lighting each display area of the plurality of the lighting control means for controlling the lighting of the illumination means of the plurality of the above A lid opening / closing detection means for detecting the opening / closing of the lid
Wherein the plurality of lighting means are outside when the lid is closed.
A first lighting unit that lights a first display area displayed in the unit;
Turn on the second display area covered with the lid closed.
The lighting control means includes:
The lid is detected as closed by the open / close detection means.
In this case, the second lighting unit is turned off when it is turned off . In the first display device of the arrangement, the image display unit is divided into a plurality of display regions, the divided display area a plurality of illuminating means illuminates, control of lighting of the lighting means
The control is performed by the lighting control means. According to this display device,
The image display is divided into multiple parts, each of which is individually lit.
In the first lighting unit and the second lighting unit, there is no need for lighting.
When the lid is closed, turn off the light
Since the second display area is more covered, the second illumination unit is turned on.
Since there is no need to perform the operation, the second lighting unit is turned off. to this
It is possible to further reduce power consumption.

Second, the image display section is an LCD display attached to a touch panel. In the second display device, the display area of the LCD display is divided into a plurality of areas, each of which is turned on by the lighting means. Therefore, power consumption can be reduced by lighting only the necessary display area. Third, the digitizer is a touch panel.

A fourth feature is that the lighting control unit has lighting operation means for manually switching on and off the plurality of lighting means. Therefore, the user can turn on or off a desired area by operating the lighting operation means, and it is possible to reduce power consumption left to the will of the user. Fifth, the lighting operation means has a display key displayed on the LCD display, and turns on and off the plurality of lighting means by pressing an area corresponding to the display key on the touch panel. Is switched. According to this, since the operation key is displayed on the display image displayed on the LCD display, a desired area can be turned on or off by the user operating the operation key. In particular, since a display key is displayed on a display image displayed on the LCD display, it is not necessary to provide a dedicated switch or the like.

Sixth, the display device further has a time monitoring means for monitoring an elapsed time after a predetermined key operation is performed, and the lighting control unit determines a monitoring result of the time monitoring means. And controlling the turning on and off of the plurality of lighting means. In the sixth configuration, lighting and extinguishing are controlled based on the monitoring result of the time monitoring unit, so that turning on and off can be performed automatically without the necessity of key operation, and labor for operation can be saved. .

[0008] Seventh, in the first display area,
The reception sensitivity, the key operated, and the message are displayed.
In the second display area, a function key and a
It is characterized by displaying a Yaruki. Therefore,
When not using function keys or dial keys
, It is sufficient to turn off the second lighting unit, and the reception sensitivity
When the display such as is not required, the first lighting unit is turned off.

Eighth, the lighting control means further comprises
The lid is closed by the lid opening / closing detecting means.
Is detected, the first lighting unit is turned off after a certain period of time.
It is characterized by lighting. Display device of this eighth configuration
According to the first aspect, the first time after a certain time has passed since the lid was closed.
If the user forgets to turn off the power because the lighting unit is turned off,
It is possible to suppress wasteful power consumption such as in the case. Ma
In addition, even if the lid is in the closed state, the first lighting unit is turned on for a certain period of time.
Lights, reception sensitivity, dial keys entered, various
You can check the message.

Ninth , the display device further comprises an incoming call detecting means for detecting an incoming call, and the lighting control means outputs the first signal when the incoming call is detected by the incoming call detecting means. The lighting unit is turned on. According to the display device having the ninth configuration, when there is an incoming call, the incoming call is detected by the incoming call detecting means. Then, when an incoming call is detected, the lighting control unit turns on the first lighting unit. Thus, the user can easily confirm that there is an incoming call.
Further, since only the first illumination unit is turned on, it is possible to suppress wasteful power consumption. In a tenth aspect , the display device further includes an incoming call notification unit that blinks when an incoming call is received, and the lighting control unit is configured to output the incoming call notification unit when the incoming call is detected by the incoming call detection unit. The first lighting unit is turned on and off in synchronization with. According to the display device having the tenth configuration, the user is notified of the incoming call by the incoming call notifying unit, and the first lighting unit is turned on and off in synchronization with the incoming call notifying unit. Can be confirmed. Eleventh is a portable terminal, wherein the first to the first are described .
0 is provided.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. Mobile terminal P in the first embodiment of the present invention
Functions mainly as a telephone device, and its appearance is shown in FIG.
(A) and (b), each of which includes a substantially terminal-shaped portable terminal body 10 and a lid 30 provided on the portable terminal body 10 via a hinge 32 so as to be opened and closed at a predetermined angle. are doing.

The portable terminal body 10 has an antenna 12
, Display panel 14, receiving section 16, transmitting section 18a
, Power operation switch 20, first lighting operation switch 2
2, the second lighting operation switch 24, and the power state notification LE
D26 and an incoming call notification LED 28 are provided. Here, the antenna 12 is for transmitting and receiving a radio wave, and is provided at an upper end of the portable terminal body 10. The display panel 14 is an LCD with a touch panel. The LCD with the touch panel includes a pressure-sensitive touch panel unit 42 (see FIG. 3) described later and an LCD.
The touch panel 42 is mounted on the LCD display 64 so as to be attached to the display 64 (see FIG. 4). Various display items such as dial keys and messages are displayed on the display panel 14, and dial key input and various instruction items can be set. The receiving section 16 is for outputting voice, and is provided at an upper portion of the front part of the portable terminal body 10. The transmission section 18a is for inputting voice, and is provided at a lower portion of the front portion of the portable terminal body 10.

The power operation switch 20 is for instructing ON / OFF of the power of the portable terminal P. The first lighting operation switch 22 is connected to the first lighting unit 60.
A switch for instructing ON / OFF of driving (see FIG. 4). The first illuminator 60 illuminates a part of the display panel 14 with backlight from the back side, and will be described later in detail. The second lighting operation switch 24 is connected to the second lighting unit 6.
2 (see FIG. 4). The second illuminator 62 illuminates the display panel 14 other than the area illuminated by the first illuminator 60, and will be described in detail later. Here, the first lighting operation switch 22 and the second lighting operation switch 2
Reference numeral 4 functions as lighting operation means. The power operation switch 20, the first lighting operation switch 22, and the second lighting operation switch 24 may be any of a button type and a slide type.

The power supply status notification LED 26 is for notifying the ON / OFF state of the power supply of the portable terminal P, and is turned on when the power supply is ON. The incoming call presence / absence notification LED 28 is for notifying the presence / absence of an incoming call.
Lights when there is an incoming call. This incoming call presence notification LE
D28 functions as an incoming call notification means. Note that the power supply status notification LED 26 and the incoming call notification LED 28 need not be LEDs, but may be any as long as the user can recognize them.

The lid 30 has a transmitting section 18b at the inner end thereof and a transmitting section 18c outside the lid 30. Here, the transmitting units 18a, 18
In each of b and 18c, a voice can be input. That is, a call can be made even when the lid 30 is closed. Since the mobile terminal P is provided with the plurality of transmitting units 18a, 18b, and 18c as described above, the user can use an easy-to-use transmitting unit. In particular, since the distances from the receiver 16 are different between the transmitters 18a and 18c and the transmitter 18b, the user who is easier to use can be selected.

Further, as shown in FIG. 1B, the lid 30 has a size and a shape that covers a lower region of the display panel 14 except for an upper portion in the closed state. That is, an example of a display image displayed on the display panel 14 is configured as shown in FIG. 2, and the display image 36 includes a reception sensitivity display section 38 a for displaying reception sensitivity, and an input for displaying input dial keys. A key display section 38b, a time display section 38c for displaying time, a function key display section 38d for displaying various function keys, a dial key display section 38e for displaying dial keys, and the like are displayed.
As shown in FIG. 2, when the lid 30 is in the closed state, the function key display section 38d and the dial key display section 38e are provided.
Are covered by the lid 30. On the other hand, the reception sensitivity display section 38a, the input key display section 38b, and the time display section 38
c is not covered even when the lid 30 is in the closed state. here,
The display area exposed to the outside in the closed state of the lid 30 is referred to as a first display area 37a, and the display area covered by the lid 30 is referred to as a second display area 37b.

Next, a schematic block diagram of the portable terminal P will be described. As shown in FIG. 3, an LCD display control unit 40, a touch panel unit 42, an operation detection unit 44, and a lid opening / closing detection unit 4 are provided.
6, a time monitor 48, a communication processor 50, an LED display controller 52, a receiver 54, a transmitter 56, and a main controller 58.

Here, the LCD display control section 40 is for controlling the display on the display panel 14.
The internal structure of the display control unit 40 will be described in detail. As shown in FIG. 4, the display control unit 40 includes a first lighting unit 60, a second lighting unit 62, an LCD display 64, a lighting control unit 66, and an LCD display control unit 68. . The first illuminator 60 illuminates the first display area 37a in the display area of the display panel 14 with a backlight from behind, and the second illuminator 62 illuminates the second display area 37b from the back. It irradiates a backlight. The LCD display 64 is for displaying dial keys, messages, and the like. For example, the display image 36 shown in FIG.
Is displayed. Further, the lighting control unit 66 controls the operation of the first lighting unit 60 and the second lighting unit 62, and the LCD display control unit 68 controls the L
This is for controlling the operation of the CD display 64. Here, the first lighting unit 60 and the second lighting unit 62 function as lighting means.

The touch panel unit 42 is a pressure-sensitive touch panel, and is provided on the LCD display 64 to detect information on a position pressed against the touch panel unit 42. The operation detector 44 detects whether the power supply operation switch 20 is in an ON state or an OFF state.
Detects whether the lid 30 is open or closed. Also, a time monitoring unit 48 as the time monitoring means.
Performs monitoring or processing of a current time or a time such as a timer, and the communication processing unit 50 is responsible for wireless communication with the base station, the master unit, and other terminals via the antenna 12, for example, Data such as call data and character data
Modulation is performed by a modulation method conforming to the S communication method, or conversely, data modulated by the modulation method is demodulated. Also,
The LED display controller 52 controls the operation of the power supply status notification LED 26 and the incoming / outgoing notification LED 28. The receiver 54 is for processing the output of the voice of the other party, and the receiver 16 corresponds to this. The transmission section 56 processes transmission of voice to the other party, and the transmission sections 18a, 18b, and 18c correspond to this. The main control unit 30 controls the operation of each unit.

Here, the main control unit 58 mainly performs the following control. When the power is turned on by pressing the power switch 20, the entire display area of the display panel 14 is illuminated with the backlight. That is, the first display area 37 shown in FIG.
a and the second display area 37b are both illuminated by the backlight. Then, by pressing the first lighting operation switch 22 and the second lighting operation switch 24, the first lighting unit 60 and the second lighting unit 62 can be turned off. That is, the first
When the first lighting operation switch 22 is pressed while the lighting unit 60 is turned on, the first lighting unit 60 is turned off. Similarly, when the second lighting unit 62 is turned on, the second lighting operation switch is turned on. Pressing 24 turns off the second illumination unit 62. Also,
At the time of an incoming call, the incoming call presence / absence display LED 28 is turned on, and the first lighting unit 60 is turned on. Here, the lighting control section 66 and the main control section 58 function as lighting control means. Further, a configuration for performing a predetermined display on the display panel 14 of the portable terminal P and irradiating a predetermined area with a backlight constitutes a display device. This is the same in the following embodiments.

Next, the operation of the portable terminal P having the above configuration will be described. First, the operation at the time of calling will be described with reference to FIG. When the power of the portable terminal P is OFF and the lid 30 is open and the power switch 20 is pressed, the power is turned on and the entire display area of the display panel 14 is illuminated with the backlight (S101). . That is, when the operation detecting unit 44 detects the pressing operation of the power operation switch 20, this information is notified to the main control unit 58 and the main control unit 5
8 instructs the LCD display control unit 40 to display the display image 36 shown in FIG. 2, and in the LCD display control unit 40 receiving the instruction, the LCD display control unit 68 stores the display data. Data is read from a stored ROM (not shown), and the display image 36 is displayed on the LCD display 64. The main controller 58 instructs the LCD display controller 40 to illuminate the backlight, and the lighting controller 66 illuminates the first illuminator 60 and the second illuminator 62 with the backlight. To instruct.

According to the detection result of the lid opening / closing detecting section 46, when the power is turned on with the lid 30 closed,
Only the first lighting unit 60 may be turned on, and the second lighting unit 62 may be turned on at the time when the lid opening operation is performed. In addition, the backlight may be turned off by the time monitoring unit 48 when the input key is not operated for a certain time after the power is turned on.

Next, by pressing each dial key of the dial key display section 38e displayed on the display panel 14, the pressed dial number is displayed on the input key display section 3.
8b (S102). That is, when each of the dial keys is pressed, the touch panel detects this, and notifies the main control unit 58 of the pressed position. And
The main controller 58 recognizes the dial number corresponding to the pressed position, stores the number in a RAM (not shown), and instructs the LCD display controller 40 to display the dial number. Then, in the LCD display control unit 40,
The LCD display control unit 68 displays the dial number sent from the main control unit 58 on the LCD display 64.

Next, it is checked whether or not the "start" key in the function key display section 38e of the display image 36 has been pressed. If the "start" key has not been pressed, the process returns to step S102. Move to That is, in step S104, the calling operation is performed when the "start" key is pressed. More specifically, the fact that the “start” key has been pressed indicates that the main control unit 5
8, the main control unit 58 notifies the communication processing unit 50 of the dial number and the communication line connection instruction stored up to that time. Then, the communication processing unit 50 performs connection processing with the terminal of the dial number via the antenna 12. When the connection processing is performed in step S104, a call is made possible (step S105).

Here, during a call, a display image 36 is displayed.
Is rarely seen, and it is not necessary to illuminate the backlight.
By pressing the second illumination operation switch 24, the first illumination unit 60 and the second illumination unit 62 can be turned off. That is, by pressing the first lighting operation switch 22,
The operation detecting unit 44 detects the pressing operation and notifies the main control unit 58. Then, the main control unit 58 instructs the LCD display control unit 40 to turn off the first lighting unit 60, and in the LCD display control unit 40, the lighting control unit 66 stops driving the first lighting unit 60. Similarly, when the second lighting operation switch 24 is pressed, the operation detecting unit 44 notifies that the switch has been pressed, and the main control unit 58 instructs the LCD display control unit 40 to turn off the second lighting unit 62. In the LCD display control unit 40, the lighting control unit 66
2 is stopped.

That is, when the user does not need to look at the contents of the display image 36, the user can press both the first lighting operation switch 22 and the second lighting operation switch 24 to turn off the backlight of the entire screen. When only the contents of the first display area 37a are required, for example, to enable the reception sensitivity to be checked, only the second illumination operation switch 24 is pressed to turn off only the second illumination section 62. On the other hand, when only the content of the second display area 37b is required, only the first lighting operation switch 22 is pressed.

When the backlight that has been turned off is to be turned on again, the first lighting operation switch 22 must be turned on again.
Or by pressing the second lighting operation switch 24. For example, the first lighting operation switch 22 is pressed to turn off the first lighting unit 60, and then the first lighting unit 6 is turned off.
To turn on 0, the first lighting operation switch 2
By pressing 2, the first lighting unit 60 can be turned on. As described above, the display area of the display panel is divided, and the backlight can be turned off for each display area, so that power consumption can be reduced.

Further, in the above embodiment, two lighting operation switches are provided, and the first lighting section 60 and the second lighting section 6 are provided.
Although the second ON / OFF drive is controlled, one switch may be used. That is, only the first illuminator 60 is lit by one push operation, only the second illuminator 62 is illuminated by two push operations, and the first illuminator 60 and the second illuminator by three push operations. Both 62 are lit,
Both the first lighting unit 60 and the second lighting unit 62 are turned off by four pressing operations.

Next, when the call is terminated and the line is to be disconnected, a line disconnection process is performed by pressing the "OFF" key of the function key display section 38d (step S10).
6). That is, by pressing the "OFF" key,
The touch panel unit 42 detects this, and notifies the main control unit 58 of the pressed position. The main control unit 58 analyzes the key input command corresponding to the pressed position, recognizes that the communication disconnection input key has been operated, and notifies the communication processing unit 50 of a communication line disconnection instruction. Then, the communication processing unit 50
Then, the communication line is disconnected. When the disconnection operation is performed by pressing the “OFF” key, if the backlight is not turned on in the second display area 37b where the “OFF” key is displayed, the second lighting operation switch 24 must be pressed. The second illumination unit 62 may be lit by the following.
By doing so, the position of the "OFF" key can be clarified.

Next, the operation at the time of receiving a call will be described with reference to FIG. When the portable terminal P is powered on, the communication processing unit 50 continues to detect whether or not there is an incoming call from another terminal (step S201). At this time,
When an incoming call is detected in the communication processing unit 50 via the antenna 12, the incoming call notification LED 28 and the first illuminating unit 60 are turned on in addition to processing in normal communication such as outputting a ringing tone. Here, the communication processing unit 50 functions as an incoming call detection unit.

That is, the communication processing unit 50 is controlled by the main control unit 58
And a process for communication with the calling terminal is performed. In the main control unit 58, L
It instructs the ED display controller 52 to turn on the incoming call notification LED 28 and instructs the LCD display controller 40 to turn on the first illumination unit 60. In the LCD display control unit 40, the lighting control unit 66 turns on the first lighting unit 60. Also, the input key display section 38b of the first display area 37a
A predetermined display is performed. For example, a telephone number of the other party or a message such as "There was an incoming call" can be considered. In addition,
The incoming call notification LED 28 may blink in synchronization with the ringing tone.

In this manner, by illuminating a part of the display panel 14 in addition to the incoming call notification LED 28, it is possible to easily confirm that an incoming call has been received. In particular, by performing the above-described predetermined display in the lit first display area 37a, it is possible to more easily see the other party's telephone number and the like. Display image 3
Since only the first display area 37a is lit instead of illuminating the entire area 6, the power consumption can be reduced. Also, when there is an incoming call, an incoming call presence / absence notification LED2
8 and the first illuminating unit 60 are turned on, so that it is not necessary to turn on the backlight one by one.

Next, when a hook-up operation is performed on the portable terminal P side, a channel link is performed and a call state is established (step S202). When the telephone is in a call state, the illuminated first lighting unit 60 is illuminated. However, when it is not necessary to look at the display panel 14 during a telephone call, the same as in the case of the above-described call. Then, the first lighting operation switch 22 is pressed to turn off the first lighting unit 60.
On the other hand, when it is desired to turn on the first lighting unit 60 or the second lighting unit 62 while the first lighting unit 60 or the second lighting unit 62 is turned off, the first lighting operation switch 22 or the second lighting unit The operation switch 24 is pressed to light up.

Next, when the call is terminated and the line is to be disconnected, the line is disconnected by pressing the "OFF" key of the function key display section 38d as in the case of the above-mentioned calling (step S1). S203). That is, when the "OFF" key is pressed, the pressed position is notified to the main control unit 58. The main control unit 58 recognizes that the communication disconnection input key has been operated, and issues a communication line disconnection instruction in the communication processing. Part 5
Notify 0. Then, the communication processing unit 50 performs a communication line disconnection process. Note that when the disconnection operation is performed by pressing the “OFF” key and the backlight is not turned on in the second display area 37b, the second lighting operation switch 24 is turned off.
By pressing, the second illumination unit 62 may be turned on. By doing so, the position of the "OFF" key can be clarified.

In the above description, when there is an incoming call, the incoming call notification LED 28 and the first illuminator 60
Has been described as being turned on, but the call presence / absence notification LED
The first lighting unit 60 may be caused to blink while the 28 blinks. In other words, the communication processing unit 50 notifies the main control unit 58 that there is an incoming call, and performs processing for communication with the calling terminal.
Then, the LED presence / absence notification LE is sent to the LED display controller 52.
D28 is instructed to blink, and the LCD display controller 4
0 is instructed to blink the first lighting unit 60. In the LCD display control unit 40, the lighting control unit 66 turns on the first lighting unit 60 in synchronization with the flickering of the incoming call notification LED 28. That is, the call presence / absence notification LED 28 and the first illumination unit 60
Flashes in synchronization with the ringing tone. Further, a predetermined display such as the telephone number of the other party is performed on the input key display section 38b of the first display area 37a.

In the above manner, the incoming call can be easily confirmed by blinking a part of the display panel 14 in addition to the incoming call notification LED 28.
By performing the above-described predetermined display in the lit first display area 37a, it is possible to make the telephone number of the other party more visible. Further, since only the first display area 37a blinks, power consumption can be reduced.
Also, when there is an incoming call, it automatically flashes, so that it is not necessary to perform the backlight lighting operation one by one. Further, since the first lighting unit 60 is made to blink in synchronization with the incoming call presence / absence notification LED 28, it is possible to more easily know that there is an incoming call. When the portable terminal P has a means for notifying an incoming call by an incoming call notifying means such as voice or vibration,
The backlight may be turned on in synchronization with the notification means.

Next, a second embodiment will be described. Second
The mobile terminal in the embodiment has substantially the same configuration as that of the first embodiment, but differs from the first embodiment in that the first lighting unit 60 is different from the first embodiment.
And a switch for controlling turning on and off of the second lighting unit 62 are displayed on the display image displayed on the display panel 14, and the first lighting operation switch 22 and the second lighting operation switch in the first embodiment are provided. Not something.

That is, a first lighting section operation key as a display key for operating the lighting of the first lighting section 60 is displayed in the first display area, and a display key for operating the lighting of the second lighting section 62 is displayed. It is assumed that the second illumination section operation key is displayed in the second display area. That is, a first lighting operation key is provided in place of the first lighting operation switch 22, and a second lighting operation key is provided in place of the second lighting operation switch 24. The description of the same components as those in the first embodiment is omitted. The functional block diagram is the same as that shown in FIGS.

The operation of the portable terminal of this embodiment will be described. The operation of the mobile terminal according to the present embodiment is substantially the same as that of the mobile terminal according to the first embodiment, except that the first lighting unit 60 and the second lighting unit 62 are turned off. That is, when the power switch 20 is pressed at the time of calling, the power is turned on, and the entire display area of the display panel 14 is irradiated with the backlight. Then, by performing a calling operation, a calling operation is performed and a call state is established. At this time, when the backlight is turned off, the first lighting unit operation key displayed on the display image and the second lighting unit operation key are displayed. The light is turned off by pressing the lighting section operation key.

More specifically, to turn off the first lighting section 60, the user presses the first lighting section operation key. Then, the touch panel unit 42 detects this, and notifies the main control unit 58 of the pressed position. The main control unit 58 analyzes the key input command corresponding to the pressed position, recognizes that there is a key input for turning off the first lighting unit 60, and notifies the LCD display control unit 40. Then, in the LCD display control unit 40, the lighting control unit 66 stops driving the first lighting unit 60. Similarly, to turn off the second illumination unit 62, the user presses the second illumination unit operation key. Then, the touch panel unit 42 detects this, and determines the pressed position by the main control unit 5.
Notify 8. The main control unit 58 analyzes the key input command corresponding to the pressed position, recognizes that there is a key input for turning off the second illumination unit 62, and notifies the LCD display control unit 40. Then, in the LCD display control unit 40,
The lighting control unit 66 stops driving the second lighting unit 62. In addition, when it is desired to turn on the backlight that has been turned off again, it can be performed by pressing the first illumination unit operation key or the second illumination unit operation key again.

The operation at the time of receiving a call is described in the first section.
This is substantially the same as that of the embodiment, and will be described with reference to FIG. 6. When an incoming call is received (step S201), the incoming call presence / absence notification LED 28 and the first lighting unit 60 are turned on. Alternatively, the telephone number of the other party or a predetermined message may be displayed. Further, the call presence / absence notification LED 28 and the first lighting unit 60 may be made to blink.

If the portable terminal performs a hook-up operation to enter a call state (step S202),
Not only the first illuminator 60 but also the second illuminator 62 is turned on. That is, the first lighting unit operation key for performing the operation of turning off the first lighting unit 60 is displayed in the first display area, and the second lighting unit operation key for performing the turning off operation of the second lighting unit 62 is displayed. Since the first illumination unit 6 is displayed in the second display area,
Not only 0 but also the second illumination unit 62 is turned on. Therefore, when it is desired to turn off the first lighting unit 60 during a call, the first lighting unit operation key is pressed. On the other hand, when it is desired to turn off the second lighting unit 62, the second lighting unit 62 is turned off.
Press the lighting section operation key. On the other hand, the first lighting unit 60
When the user wants to turn on the first lighting unit 60 or the second lighting unit 62 in a state where the or the second lighting unit 62 is turned off, the user presses the first lighting unit operation key or the second lighting unit operation key to turn it on. To do. Although the first illumination unit 60 and the second illumination unit 62 have been described as being turned on at the time of an incoming call, only the first illumination unit may be turned on to suppress power consumption. Next, when the call is terminated and the line is disconnected, the line disconnection process is performed by pressing the "off" key of the function key display section 38d as in the case of the calling (step S203).

According to the portable terminal of this embodiment, the display area of the display panel can be divided and the backlight can be turned off for each display area, so that power consumption can be reduced. Further, in particular, the first lighting unit 60 and the second lighting unit 6
Since the switch for operating the lighting of No. 2 is constituted by the display key displayed on the display panel, it is not necessary to provide a dedicated switch as in the first embodiment.

In this embodiment, turning on and off the backlight is performed by pressing the first lighting section operation key or the second lighting section operation key. However, a special display key is not provided. In the display image 36 as shown in FIG. 2, the lighting and the turning off may be controlled by pressing any one of the first display area 37a and the second display area 37b.

Next, a third embodiment will be described. Third
Although the mobile terminal in the embodiment has substantially the same configuration as the above-described first and second embodiments, unlike the above-described embodiments, an operation switch for operating lighting of the first illumination unit 60 and the second illumination unit 62 and No operation key is provided, and the lighting of each lighting unit is controlled by opening and closing the lid 30. That is, as a configuration, the first lighting operation switch 22 and the second lighting operation switch 24 are not provided, and the display image is not provided with a display key for controlling lighting, and the lid 30
Lighting is controlled in accordance with the opening and closing of. The functional block diagram is the same as that shown in FIGS.

The operation of the portable terminal according to the third embodiment will be described. The operation at the time of calling will be described with reference to FIG. 5. When the power is turned on by pressing the power supply operation switch 20 while the cover 30 is in the closed state (step S101), the first operation is performed.
The first illuminating unit 60 and the second illuminating unit 62 are turned on in the same manner as in the embodiment and the second embodiment. Then, when a predetermined dial key is pressed and a "start" key is pressed, a calling operation is performed (steps S102 to S104), and a call is enabled (step S105).

Here, when the communication is enabled, the display of the dial keys and the like becomes unnecessary, and the lid 30 does not need to be opened, so that the closing operation is expected. When the lid is closed, the second lighting unit 62
It is not necessary to keep on. Therefore, when the lid closing operation is performed, the second lighting unit 62 is turned off. That is, when the lid is closed, the lid opening / closing detection unit 46 detects this,
The main controller 58 is notified. Then, the main control unit 58 instructs the time monitoring unit 48 to start measuring time, and notifies the LCD display control unit 40 that the lid 30 has been closed. In the LCD display control unit 40,
The lighting control unit 66 turns off the second lighting unit 62.

On the other hand, the time monitoring unit 48 measures the time since the closing operation of the lid 30 by the notification from the main control unit 58, and when it is detected that a predetermined time has elapsed, the main control unit 58 Notify this. Then, the main control unit 58 sends the lid 30 to the LCD display control unit 40.
Is notified that a certain time has passed since the cover was closed. Then, in the LCD display control unit 40, the lighting control unit 66
Turns off the first lighting unit 60. That is, when the lid 30 is closed, first, the second lighting unit 62 is turned off, and then, after a predetermined time has elapsed, the first lighting unit 60 is turned off. Further, when the lid opening operation is performed, the first lighting unit 60 and the second lighting unit 62 may be turned on.

The operation at the time of receiving a call is described in the first section.
This is substantially the same as that of the embodiment, and will be described with reference to FIG. 6. When an incoming call is received (step S201), the incoming call presence / absence notification LED 28 and the first lighting unit 60 are turned on. Alternatively, the telephone number of the other party or a predetermined message may be displayed. Further, the call presence / absence notification LED 28 and the first lighting unit 60 may be made to blink. Further, when the cover is opened at the time of receiving a call, not only the first lighting unit 60 but also the second lighting unit 62 may be turned on.

According to the portable terminal of this embodiment, the backlight is automatically turned off by closing the lid, so that the power consumption is reduced. In particular, since the first lighting unit 60 is also turned off after a certain period of time, useless power consumption can be suppressed even when the user forgets to turn off the power. Even if the cover 30 is closed, the first illumination unit 60 is lit for a certain period of time, so that the reception sensitivity displayed on the reception sensitivity display unit 38a (see FIG. 2) and the input key display The input dial keys and various messages displayed on the unit 38b can be confirmed. In addition, when various messages such as a call time and a call charge are to be performed after the call is completed, a closing operation is performed after the call is completed. Since the first lighting unit 60 is turned on for a certain period of time, it is possible to check them. In the above description, the first lighting unit 60 is turned off after a fixed time from the closing operation. However, the first lighting unit 60 and the second lighting unit 62 are turned off simultaneously with the closing operation. It may be.
As a result, the power consumption is reduced more than when the first lighting unit 60 is turned off after a certain time has elapsed.

As described above, the portable terminals of the first to third embodiments have been described. However, the backlight can be turned on and off by appropriately combining the backlight on and off functions in each of the above embodiments. Good. For example, by combining the first embodiment and the third embodiment, the first lighting unit 60 and the second lighting unit 62 are turned on and off by the first lighting operation switch 22 and the second lighting operation switch 24, Lighting and extinguishing are controlled by opening and closing the lid 30. Then, when it is desired to turn off the backlight in a call state, there are a method of turning off the light by the above switches and a method of turning off the light by closing the lid. Further, by combining the second embodiment and the third embodiment, the first lighting unit 60 and the second lighting unit 62 are turned on and off by the first lighting unit operation key and the second lighting unit operation key, Lighting and control may be controlled by opening and closing the lid 30.

Next, a fourth embodiment will be described. 4th
Although the mobile terminal in the embodiment has substantially the same configuration as that of the first embodiment, unlike the first embodiment, the first lighting operation switch 22 and the second lighting operation switch 24 are not provided, and the first terminal is not provided. Lighting control of the lighting unit 60 and the second lighting unit is automatically performed by time control as described below. That is, the main control unit 58 controls the turning on and off of the first lighting unit 60 and the second lighting unit 62 based on the key operation on the display panel 14 and the measurement result from the time control unit 48. Details of the operation will be described below. The description of the same components as those in the first embodiment is omitted. The functional block diagram is the same as that shown in FIGS.

The operation of the portable terminal of this embodiment will be described. First, the operation at the time of calling will be described with reference to FIG. 7. When the power operation switch 20 is pressed, the power is turned on (step S301). When the power is turned on, the first lighting unit 60 is turned on (S302). That is, the operation detection unit 44 detects that the power operation switch 20 has been operated, and the main control unit 58 is notified of this. The main control unit 58 instructs the LCD display control unit 40 to turn on the first lighting unit 60, and in the LCD display control unit 40, the lighting control unit 66 turns on the first lighting unit 60. Further, the main control unit 58 notifies the time monitoring unit 48 that the power is turned on by the power operation switch 20, and the time monitoring unit 48 starts the time monitoring process. Next, the touch panel unit 42 detects whether or not the dial number has been input. If the dial number has not been input, the process proceeds to step S304, and if the input has been performed, the process proceeds to step S306.

In step S304, the time monitoring unit 48 monitors whether or not a predetermined time has elapsed since the power operation switch 20 was turned on. If the predetermined time has elapsed, the process proceeds to step S305. That is, step S
In 305, if there is no input of a dial number for a predetermined time after the power is turned on, the lit first lighting unit 60 is turned off. If both the first lighting unit 60 and the second lighting unit 62 are turned on after step S306, both the first lighting unit 60 and the second lighting unit 62 are turned off. That is, when the predetermined time has elapsed, the time monitoring unit 48 notifies the main control unit 58, and the main control unit 58
For 0, an instruction to turn off the first illumination unit 60 or both the first illumination unit 60 and the second illumination unit 62 is given. LCD
In the display control unit 40, the lighting control unit 66 turns off the first lighting unit 60 or both the first lighting unit 60 and the second lighting unit 62. Thus, when there is no input operation for a certain period of time, the backlight can be turned off to reduce power consumption. Further, since the light-off control is performed automatically, it is not necessary to perform the light-off operation one by one.

On the other hand, if the dial number has been input within the predetermined time, the first lighting unit 60 and the second lighting unit 62 are turned on in step S306. Here, when the dial number is input within a certain time after the power is turned on, only the second lighting unit 62 is turned on, and when the first lighting unit 60 is turned off after a certain time, Both the first lighting unit 60 and the second lighting unit 62 are turned on. This lighting is performed when at least one dial number is input. Specifically, when the dial number is input, the main control unit 58 sends the first illumination unit 60 and the second illumination unit 60 from the LCD display control unit 40.
It detects whether or not the lighting unit 62 is turned off, and instructs the LCD display control unit 40 to turn off the turned off lighting unit according to the detection result.

Then, whether or not there is a call operation is detected via the touch panel unit 42 (step S307). If there is a call operation, a call operation is performed and the input dial number is entered. A connection process with the terminal is performed, and a call with the other party is enabled (step S308). On the other hand, if there is no call operation, the process returns to step S303, where it is detected whether or not a dial number has been input. If a predetermined time has passed without any input, the first lighting unit 60 is turned off (step S305). .

Next, when a certain period of time has elapsed in the call state, the second lighting section 62 is turned off. That is, the time monitoring unit 48 monitors whether or not a certain time has elapsed since the communication state was entered (step S310). If the certain time has elapsed, this is notified to the main control unit 58. , And instructs the LCD display control unit 40 to turn off the second lighting unit 62. Then, in the LCD display control unit 40, the lighting control unit 66 sets the second lighting unit 6
2 is turned off (step S311). As described above, since the light is turned off after a certain period of time from the call state, the power consumption can be reduced, and the light is turned off automatically, so that there is no need to operate each time. In addition, since the first illumination unit 60 is turned on, the reception sensitivity and the time can be easily checked. In the above description, it is described that the light is turned off after a lapse of a certain time from the call state. However, it is detected whether or not there is an input for a certain time after the call state, and the light is turned off when there is no input. You may do so.

On the other hand, if the disconnection operation is performed by pressing the "OFF" key of the function key display section 38d of FIG. 2 before the predetermined time has elapsed, the main control section 58 detects this and performs the communication processing. Instruct the unit 50 to disconnect the communication line (step S312). The main control unit 58 instructs the LCD display control unit 40 to turn off the lit first lighting unit 60, and the lighting control unit 66 turns off the first lighting unit 60. As described above, by separately controlling the lighting of the first lighting unit 60 and the lighting of the second lighting unit 62 by time control, power consumption can be reduced.

The method of controlling the turning on and off of the first lighting unit 60 and the second lighting unit 62 is not limited to the above, but may be another method. That is, the above description is based on the pattern A shown in FIG.
However, the control may be performed according to a procedure from pattern B to pattern D. For example, the pattern B turns on the first lighting unit 60 in step S302,
The first illuminator 60 is turned off in step S305, and both the first illuminator 60 and the second illuminator 62 are illuminated in step S306, similar to pattern A, but in step S311 the first illuminator 60 is turned off. And the second illumination unit 62 is turned off. According to this method, the power of the first lighting unit 60 is also turned off after a certain period of time has elapsed since the call state, thus further reducing power consumption. The pattern C and the pattern D turn on the first lighting unit 60 and the second lighting unit 62 when the power is turned on. In the pattern C, both the lighting units are turned off in step S305. And
In step S306, both lighting units are turned on, and in step S311, the second lighting unit 62 is turned off.
Then, the first lighting unit 60 is turned off. On the other hand, the pattern D is substantially the same as the pattern C, but in step S305, the second lighting section 62 is turned off, and then, after a certain time has elapsed, the first lighting section 60 is turned off. In this pattern D, the reception sensitivity and various messages can be confirmed because the first lighting unit 60 is lit longer.

Next, at the time of incoming call, if the power is turned on and the apparatus is in the standby state, the process proceeds to step S in FIG.
The operation is performed as in steps S301 to S305, and the light is turned off after a lapse of a predetermined time after the power is turned on. On the other hand, if there is an incoming call,
The first illuminator 60 is turned on, and the illuminated first illuminator 60 is turned off when a certain period of time has elapsed since the call state was established. When the cutting operation is performed, the first lighting unit 6
0 may be turned off. Further, the first lighting unit 60 and the second lighting unit 62 may be turned on when there is an incoming call, and thereafter, control may be performed as in step 309 of FIG. In this case, as a light-off pattern, as shown in patterns A, C, and D, a method of turning off the second lighting unit 62 in step S311 and turning off the first lighting unit 60 in step S313, As shown in B, a method of turning off lights simultaneously in step S311 is considered.

Next, the above-described time control method is performed during communication, but the following method can be considered as a method other than during communication. That is, unlike the display image shown in FIG.
The function key display section 38d also has a first display area 37a.
Is included in the second display area 37b, and only the dial key display section 38e is included. Then, when the power is turned on, only the first lighting unit 60 is turned on, or the first lighting unit 60 and the second lighting unit 62 are turned on, as shown in patterns A to D in FIG. Then, after a certain period of time, the illuminated lighting unit is turned off. After that, when there is no outgoing call or incoming call and only the keys in the first display area 37a are used, such as operating only the function keys, only the first illuminating unit 60 is turned on because there is no need for dial keys. I do. Thereby, since the second lighting unit 62 is turned off, the power consumption can be reduced, and the lighting control is performed automatically, so that there is no need to operate each operation. In addition, since the first illumination unit 60 is turned on, it is possible to check the reception sensitivity, the time, and the like.

In each of the above embodiments, the display panel 14 including the touch panel 42 and the LCD display 64 is used, and the display area of the display panel 14 is divided into a first display area 37a and a second display area 37b. Although the illumination unit that illuminates the display area with the backlight is separately controlled, the key input is performed by the button input and the display screen is changed to the first illumination in the ordinary mobile phone device not using the touch panel with the LCD. Lights in part 60,
The function keys and the dial keys may be turned on by the second lighting unit 62. Further, in the configuration of a normal mobile phone device, the irradiation target of the first lighting unit 60 may be a dial key input result display area, and the irradiation target of the second lighting unit 62 may be various message display areas.

In each of the above embodiments, a pressure-sensitive touch panel is used. However, any touch panel may be an electrostatic induction type or an electromagnetic induction type. Further, a digitizer other than the touch panel may be used instead of the touch panel. Further, in each of the above-described embodiments, the transmitting section 18c is provided outside the lid 30. However, the transmitting section 18a may be used by providing a hole in the lid 30. In each of the above embodiments, the display area is divided into two and the backlight is illuminated by the two illumination units. However, the display area may be divided into three or more. Further, in each of the embodiments described above, the portable terminal as the telephone device is mainly described, but the present invention can be applied to a display device such as a notebook personal computer or a word processor. That is, the display area is divided into a plurality of areas, and the divided display areas are individually illuminated with the backlight.

[0064]

According to the display device and the portable terminal of the present invention, the image display section is divided into a plurality of display areas, and each of the plurality of display areas is lit by the lighting means.
Only the necessary display area needs to be turned on, and power consumption can be reduced.

[Brief description of the drawings]

FIGS. 1A and 1B are diagrams showing a configuration of a mobile terminal according to an embodiment of the present invention, wherein FIG. 1A is a perspective view in an open state and FIG. 1B is a perspective view in a closed state.

FIG. 2 is an explanatory diagram showing a display image.

FIG. 3 is a block diagram illustrating a configuration of a mobile terminal according to an embodiment of the present invention.

FIG. 4 is a block diagram illustrating a configuration of an LCD display control unit.

FIG. 5 is a flowchart for explaining an operation at the time of calling.

FIG. 6 is a flowchart for explaining an operation at the time of receiving a call;

FIG. 7 is a flowchart for explaining an operation at the time of calling in the time control.

FIG. 8 is an explanatory diagram for explaining an operation at the time of calling in the time control.

[Explanation of symbols]

 P Mobile terminal 10 Mobile terminal body 12 Antenna 14 Display panel 16, 54 Receiver unit 18a, 18b, 18c, 56 Transmitter unit 20 Power switch 22 First lighting switch 24 Second lighting switch 26 Power status notification LED 28 Call presence / absence notification LED 30 Lid 32 Hinge 36 Display image 37a First display area 37b Second display area 40 LCD display controller 42 Touch panel 44 Operation detector 46 Lid open / close detector 48 Time monitor 50 Communication processor 52 LED display controller 58 main controller 60 first illuminator 62 second illuminator 64 LCD display 66 lighting controller 68 LCD display controller

Continuation of the front page (56) References JP-A-6-177809 (JP, A) JP-A-4-249457 (JP, A) JP-A-7-74691 (JP, A) JP-A 64-7749 (JP) JP-A-2-228858 (JP, A) JP-A-63-287990 (JP, A) JP-A-8-331163 (JP, A) JP-A-7-38946 (JP, A) 5-130193 (JP, A) JP-A-4-233854 (JP, A) JP-A-4-117735 (JP, A) JP-A 64-38854 (JP, U) JP-A-2-57650 (JP, A) U) Japanese Utility Model Hei 1-153759 (JP, U) Japanese Utility Model Utility Model 5-68159 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G09F 9/00 H04M 1/02-1 /twenty three

Claims (11)

(57) [Claims] An image display unit and a part of the image display unit are provided.
A display device having a lid to cover, wherein the image display unit is divided into a plurality of display areas, and a plurality of lighting units for respectively lighting the plurality of display areas, and controlling lighting of the plurality of lighting units. Lighting control means for detecting opening and closing of the lid
A lid opening / closing detecting unit, wherein the plurality of lighting units are
Lights the first display area exposed to the outside when the lid is closed
A first illuminating section to be covered, and a
And a second lighting unit for lighting the two display areas.
The control means closes the lid by the lid opening / closing detection means.
When the state is detected, the second lighting unit is turned off.
Display device characterized by to. 2. The display device according to claim 1, wherein the image display unit is an LCD display attached to the digitizer. 3. The display device according to claim 2, wherein the digitizer is a touch panel. 4. The display device according to claim 1, wherein the lighting control means has a lighting operation means for manually switching on and off the plurality of lighting means. 5. The lighting operation means has a display key displayed on the LCD display, and switches on and off the plurality of lighting means by pressing an area corresponding to the display key on the touch panel. The display device according to claim 4, wherein: 6. The display device further comprises time monitoring means for monitoring an elapsed time after a predetermined key operation is performed,
The display device according to any one of claims 1 to 5, wherein the lighting control unit controls turning on and off of the plurality of lighting units according to a monitoring result of the time monitoring unit. 7. A reception sensitivity and an input in the first display area.
The operated keys and messages are displayed.
The display area shows function keys and dial keys.
7. The method according to claim 1, wherein
The display device according to the above. 8. The lighting control means further includes a lid opening / closing unit.
When the detection means detects that the lid is in the closed state
In particular, turning off the first illuminating unit after a certain time has elapsed.
The display device according to claim 1, further comprising: 9. The display device according to claim 1 , further comprising:
A call detecting means, and the lighting control means is provided by the incoming call detecting means.
When the incoming call is detected, the first lighting unit is turned on.
The display according to any one of claims 1 to 8, characterized in that:
apparatus. 10. The display device further flashes upon receiving a call.
And a lighting control means for receiving a call.
When an incoming call is detected by the stage,
The first illuminating section is turned on and off in an expected manner.
10. The display device according to 9. 11. The method according to claim 1 , wherein
A mobile terminal having a display device.