JPH0962198A - Display device and portable terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device capable of reducing the electric power consumption in the portable terminal of a portable telephone device. SOLUTION: A cover 30 capable of being opened and closed on the portable terminal main body 10 is arranged so that the upper part of a display panel 14 is uncovered, and in the display area of the display panel 14, the uncovered area where the cover 30 is closed is assumed to be a first display area and the covered area is assumed to be a second display area. And, the first display area is lighted up by the first illumination part and the second display area by the second illumination part. The first illumination operation switch 22 can turn on-off the first illumination part and the second illumination operation switch 24 can turns on-off the second illumination part. Also, the device is so arranged that when the cover 30 is put into the close lid state, the second illumination part is automatically turned off. Further, after, the elapse of a certain time when a certain key operation was done, turning on-off of the first and second illumination parts are individually controlled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device, and more particularly to a display device used for a mobile terminal.

[0002]

2. Description of the Related Art Conventionally, various developments of portable communication devices including a mobile phone device have been made. For example, 1
The second-generation cordless telephone system (Personal Handyphone System: PHS) is being put into practical use as a mobile telephone system that can be called in all situations at home, in the office, and outdoors using one mobile phone. There is. Here, in a conventional LCD display device in a mobile phone device or the like, a backlight function of illuminating from the back surface of the display surface is provided in order to increase the display capability. As a result, 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 device is provided with switching means for turning ON / OFF power supply of a power source to a light source for illuminating the liquid crystal display means from the back side, and when necessary, Have been disclosed.

[0003]

However, by illuminating the backlight, a problem of increased power consumption occurs, and this problem is particularly important in a device such as a mobile terminal which requires a battery. Further, the above-mentioned Japanese Patent Laid-Open No.
Even if the switching means as shown in the portable information processing device of No. 296123 is applied to a mobile terminal such as a mobile phone device, the switching means of the application performs ON / OFF control of the light source in units of the entire display area. Therefore, the area other than the display area required by the user is also illuminated, and useless power is consumed. The wasteful consumption of electric power shortens the continuous operation time of the mobile terminal, and in particular, in the case of a mobile phone device, it also causes a decrease in continuous call 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 was created in order to solve the above-mentioned problems, and, firstly, a display device having an image display section, wherein a plurality of the image display sections are provided. It is characterized in that it has a plurality of lighting means which are divided into the display areas and which respectively light the plurality of display areas, and a lighting control means which controls lighting of the plurality of lighting means. In the display device having the first configuration, the image display unit is divided into a plurality of display areas, and the plurality of illumination means turn on the divided display areas. The lighting control means controls the lighting of the lighting means. According to this display device, the image display unit is divided into a plurality of parts and each of them is individually turned on, so that it is possible to reduce power consumption.

Secondly, the image display section is an LCD display attached to a touch panel. In this second display device, the display area of the LCD display is divided into a plurality of areas, and each of them is illuminated by an illumination means. Therefore, it is possible to reduce power consumption by turning on only a necessary display area. Thirdly, the digitizer is a touch panel.

A fourth feature is that the lighting control unit has lighting operation means for manually switching between turning 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 the power consumption depending on the intention of the user. Fifthly, the lighting operation means has a display key displayed on the LCD display, and by pressing an area of the touch panel corresponding to the display key, the plurality of lighting means are turned on and off. It is characterized by switching. According to this, since the operation key is displayed in the display image displayed on the LCD display, the user can operate it to turn on or off the desired area. Especially, since the display key is displayed on the display image displayed on the LCD display, it is not necessary to provide a dedicated switch or the like.

Sixthly, the display device further has a time monitoring means for monitoring the elapsed time after a predetermined key operation is performed, and the lighting control section has a monitoring result of the time monitoring means. According to the above, lighting and extinguishing of a plurality of lighting means are controlled. In the sixth configuration, lighting and extinguishing are controlled based on the monitoring result of the time monitoring unit, so that lighting and extinguishing can be automatically performed without the need for key operation, and the labor of operation can be saved. .

Seventhly, the display device further has a lid for covering a part of the image display portion, and the plurality of illuminating means are externally provided with the lid closed. First exposed
It is characterized by having a first illuminating section that lights up the display area and a second illuminating section that lights up the second display area that is covered with the lid body in the closed state. Since the display device having the seventh configuration has the first illuminating section and the second illuminating section, consumption is achieved by turning off the illuminating sections that do not need to be turned on in the first illuminating section and the second illuminating section. Electricity can be saved. Eighth, in the first display area, the reception sensitivity, the input key and the message are displayed,
A function key and a dial key are displayed in the second display area. Therefore, when the function key or dial key is not used, the second illumination unit may be turned off, and when the display of the reception sensitivity and the like is not necessary, the first illumination unit is turned off.

Ninthly, the display device further has a lid opening / closing detecting means for detecting opening / closing of the lid, and the lighting control means causes the lid opening / closing detecting means to close the lid. The second illumination unit is turned off when it is detected that That is, when the lid body is in the closed state, since the lid body covers the second display area, it is not necessary to turn on the second illumination unit, and therefore the second illumination unit is turned off.
As a result, power consumption can be reduced. Tenth, when the lighting control means further detects that the lid body is in the closed state by the lid body opening / closing detection means,
It is characterized in that the first illumination unit is turned off after a lapse of a certain time. According to the display device of the tenth configuration, the first illuminator is turned off after a certain period of time after the lid is closed, so that wasteful power consumption is consumed when the user forgets to turn off the power. Can be suppressed. Further, even when the lid is closed, the first illumination unit is turned on for a certain period of time, so that the reception sensitivity, the input dial key, and various messages can be confirmed.

Eleventh, the display device further comprises
Incoming call detection means for detecting an incoming call, lighting control means,
The first illumination unit is turned on when an incoming call is detected by the incoming call detecting means. According to the display device having the eleventh configuration, when an incoming call is received, the incoming call detecting means detects the incoming call. Then, when the incoming call is detected, the lighting control means lights the first lighting unit. This allows the user to easily confirm that there is an incoming call. Moreover, since only the first lighting unit is turned on, it is possible to suppress unnecessary power consumption. In the twelfth aspect, the display device further has an incoming call notification means that blinks when an incoming call arrives, and the lighting control means, when the incoming call detection means detects an incoming call, the incoming call notification means. The first illuminator is blinked in synchronism with. According to the display device of the twelfth configuration, the incoming call notification means notifies the user of the incoming call, and the first lighting unit blinks in synchronization with the incoming call notification means. Can be confirmed. The thirteenth is a mobile terminal, which is characterized by including the display device having any one of the first to twelfth configurations.

[0011]

DETAILED DESCRIPTION OF THE INVENTION An embodiment of the present invention will be described with reference to the drawings. The mobile terminal P in the first embodiment of the present invention
Mainly functions as a telephone device, and its appearance is shown in Figure 1.
(A), (b) is configured, and has a substantially casing-shaped portable terminal body 10 and a lid body 30 which is provided on the portable terminal body 10 via a hinge portion 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, earpiece 16, and transmitter 18a
, Power supply operation switch 20, and first lighting operation switch 2
2, the second lighting operation switch 24, the power state notification LE
D26 and an incoming call presence / absence notification LED 28 are provided. Here, the antenna 12 is for transmitting and receiving radio waves, and is provided at the upper end of the mobile terminal body 10. Further, the display panel 14 is an LCD with a touch panel, and the LCD with the touch panel includes a pressure sensitive touch panel section 42 (see FIG. 3) and an LCD described later.
A display 64 (see FIG. 4), and the touch panel unit 42 is mounted on the LCD display 64 in a form of being attached. Various display items such as dial keys and messages are displayed on the display panel 14, and further, dial key input and various instruction items can be set. The earpiece 16 is for outputting voice and is provided on the upper portion of the front surface of the mobile terminal body 10. The transmitter 18a is for inputting voice and is provided in the lower portion of the front surface of the mobile terminal body 10.

The power source operation switch 20 is for instructing ON / OFF of the power source of the portable terminal P. Further, the first lighting operation switch 22 includes the first lighting unit 60.
It is a switch for instructing ON / OFF of driving (see FIG. 4). The first illuminator 60 illuminates a part of the display panel 14 with a backlight from the back side, and the details will be described later. The second lighting operation switch 24 includes the second lighting unit 6
2 is a switch for instructing ON / OFF of driving (see FIG. 4). The second illuminating section 62 illuminates areas other than the area illuminated by the first illuminating section 60 on the display panel 14, and details thereof will be described later. Here, the first lighting operation switch 22 and the second lighting operation switch 2
4 functions as a lighting operation means. The power operation switch 20, the first lighting operation switch 22, and the second lighting operation switch 24 may be of a button type or a slide type.

The power supply status notification LED 26 is for notifying the ON / OFF status of the power supply of the portable terminal P, and lights up when the power supply is in the ON status. The incoming call presence / absence notification LED 28 notifies 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. The power status notification LED 26 and the incoming call presence / absence notification LED 28 do not have to be LEDs, and may be any one that can be recognized by the user.

The lid 30 has a transmitting portion 18b at its inner end and a transmitting portion 18c outside the lid 30. Here, the transmitters 18a, 18
Both b and 18c can input voice. That is, a call can be made even when the lid 30 is closed. Since the mobile terminal P is thus provided with the plurality of transmitters 18a, 18b, 18c, the user can use the transmitters that are easy to use. In particular, since the distances from the receiver 16 are different between the transmitters 18a and 18c and the transmitter 18b, it is possible to select the one that is easy to use.

Further, as shown in FIG. 1 (b), the lid body 30 has a size and shape that covers the lower region of the display panel 14 in the closed state except the upper portion. 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 38a for displaying the reception sensitivity and an input for displaying the input dial key. 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, etc. are displayed.
As shown in FIG. 2, when the lid 30 is in the closed state, the function key display portion 38d and the dial key display portion 38e are displayed.
And are covered by the lid 30. On the other hand, the reception sensitivity display section 38a, the input key display section 38b, the time display section 38.
c is not covered even when the lid 30 is closed. here,
The display area exposed to the outside when the lid 30 is closed 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 is shown, as shown in FIG. 3, an LCD display control section 40, a touch panel section 42, an operation detecting section 44, and a lid opening / closing detecting section 4.
6, a time monitoring unit 48, a communication processing unit 50, an LED display control unit 52, a reception unit 54, a transmission unit 56, a main control unit 58.

Here, the LCD display control section 40 is for controlling the display on the display panel 14, and this LED
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 illumination unit 60, a second illumination unit 62, an LCD display 64, a lighting control unit 66, and an LCD display control unit 68. . The first illuminating section 60 illuminates the backlight from the back side of the first display area 37a in the display area of the display panel 14, and the second illuminating section 62 also illuminates the second display area 37b from the back side. It illuminates the backlight. The LCD display 64 is for displaying dial keys, messages, etc., and is, for example, a display image 36 as shown in FIG.
Is displayed. Further, the lighting control unit 66 is for controlling the operation of the first lighting unit 60 and the second lighting unit 62, and the LCD display control unit 68 is for controlling the L level.
This is for controlling the operation of the CD display 64. Here, the first illumination unit 60 and the second illumination unit 62 function as illumination means.

The touch panel section 42 is a pressure-sensitive touch panel, is attached on the LCD display 64, and detects the position information pressed on the touch panel section 42. The operation detection unit 44 detects whether the power supply operation switch 20 is in the ON state or the OFF state, and the lid opening / closing detection unit 46 serving as the lid opening / closing detection unit.
Is for detecting whether the lid 30 is opened or closed. In addition, the time monitoring unit 48 as the time monitoring means
Is for monitoring or processing the current time or time such as a timer, and the communication processing unit 50 is in charge of wireless communication with the base station, the base unit or other terminals via the antenna 12, and, for example, , PH such as call data and character data
Modulation is performed by a modulation method that conforms to the S communication method, or conversely, data that is modulated by that modulation method is demodulated. Also,
The LED display control unit 52 controls the operations of the power supply state notification LED 26 and the incoming call presence / absence notification LED 28. The earpiece 54 is for processing the output of the voice of the other party, and the earpiece 16 corresponds to this. The transmitter 56 processes the transmission of voice to the other party, and the transmitters 18a, 18b, 18c correspond to this. Further, the main control unit 30 controls the operation of each of the above units.

Here, the main control section 58 mainly performs the following control. When the power switch 20 is pressed to turn on the power, the entire display area of the display panel 14 is illuminated with the backlight. That is, the first display area 37 shown in FIG.
Both a and the second display area 37b are backlit. 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, and similarly, the second lighting operation switch is turned on when the second lighting unit 62 is turned on. When 24 is pressed, the second lighting unit 62 is turned off. Also,
At the time of incoming call, the incoming call presence / absence display LED 28 is turned on and the first illumination section 60 is turned on. Here, the lighting control unit 66 and the main control unit 58 function as a lighting control unit. In addition, a configuration for performing a predetermined display on the display panel 14 of the mobile terminal P and illuminating 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 mobile terminal P is off, the lid 30 is open, and the power operation 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 detection unit 44 detects the pressing operation of the power supply operation switch 20, this information is notified to the main control unit 58, and the main control unit 5 is notified.
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 which receives the instruction, the LCD display control unit 68 stores the display data. Data is read from a ROM (not shown) that is present and the display image 36 is displayed on the LCD display 64. Further, the main control unit 58 instructs the LCD display control unit 40 to illuminate the backlight, and the lighting control unit 66 illuminates the first illumination unit 60 and the second illumination unit 62 with the backlight. Give instructions.

According to the detection result of the lid opening / closing detector 46, when the lid 30 is closed and the power is turned on,
Only the first illuminating unit 60 may be turned on, and the second illuminating unit 62 may be turned on when the lid opening operation is performed. Further, the time monitoring unit 48 may turn off the backlight when the input key is not operated for a certain period 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 is displayed (S102). That is, when each of the dial keys is pressed, the touch panel section detects it and notifies the main control section 58 of the pressed position. And
The main control unit 58 recognizes the dial number corresponding to the pressed position, stores the number in the RAM (not shown), and instructs the LCD display control unit 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 portion 38e in the display image 36 is pressed, and if not pressed, the process returns to the step S102, and if pressed, the following step S104. Move to. That is, in step S104, the calling operation is performed by pressing the "start" key. Specifically, the fact that the "start" key is pressed indicates that the touch panel section 42 causes the main control section 5 to
8 is notified, and the main control unit 58 notifies the communication processing unit 50 of the dial number and the communication line connection instruction that have been stored until then. Then, the communication processing unit 50 performs a connection process with the terminal of the dial number via the antenna 12. When the connection process is performed in step S104, the call becomes possible (step S105).

Here, during the call, the display image 36
Since there is almost no opportunity to see the light, and it is not necessary to illuminate the backlight, the user can set the first lighting operation switch 22
By pressing the second lighting operation switch 24, the first lighting unit 60 and the second lighting unit 62 can be turned off. That is, by pressing the first lighting operation switch 22,
The operation detection 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 illumination unit 60, and in the LCD display control unit 40, the lighting control unit 66 stops driving the first illumination unit 60. Similarly, when the second lighting operation switch 24 is pressed, the operation detection unit 44 notifies that the switch has been pressed, and the main control unit 58 causes 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 causes the second illumination unit 6 to operate.
2 is stopped.

That is, when the user does not need to see the contents of the display image 36, he or she may 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, the reception sensitivity can be confirmed, only the second lighting operation switch 24 is pressed to turn off only the second lighting section 62. On the other hand, when only the contents of the second display area 37b are required, only the first lighting operation switch 22 is pressed.

When it is desired to turn on the backlight that has been turned off again, the first lighting operation switch 22 is 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 once, and then the first lighting unit 6 is turned on.
If you want to turn on 0, turn on the first lighting operation switch 2 again.
By pressing 2, the first lighting unit 60 can be turned on. As described above, since the display area of the display panel is divided and the backlight can be turned off for each display area, power consumption can be reduced.

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 ON / OFF driving control of 2 is performed, one switch may be used. That is, only the first lighting unit 60 is turned on by one pressing operation, only the second lighting unit 62 is turned on by two pressing operations, and the first lighting unit 60 and the second lighting unit are turned by three pressing 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 ends and the line is disconnected, the 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 the communication line disconnection instruction. Then, the communication processing unit 50
Then, the communication line is disconnected. When the "OFF" key is pressed to perform the disconnection operation, if the backlight is not lit in the second display area 37b in which the "OFF" key is displayed, the second lighting operation switch 24 is pressed. Therefore, the second illumination unit 62 may be turned on.
By doing so, the position of the "off" key can be clarified.

Next, the operation when receiving a call will be described with reference to FIG. While the mobile terminal P is powered on, the communication processing unit 50 continues to detect whether there is an incoming call from another terminal (step S201). At this time,
When an incoming call is detected by the communication processing unit 50 via the antenna 12, the incoming call presence / absence notification LED 28 and the first illuminating unit 60 are turned on in addition to the normal communication processing such as output of a ringing tone. Here, the communication processing unit 50 functions as an incoming call detecting means.

In other words, the communication processing unit 50 has the main control unit 58.
Is notified that there is an incoming call, and processing for communication with the calling terminal is performed. In the main controller 58, L
The ED display control unit 52 is instructed to turn on the incoming call presence / absence notification LED 28, and the LCD display control unit 40 is instructed to turn on the first illumination unit 60. In the LCD display control unit 40, the lighting control unit 66 lights the first lighting unit 60. In addition, the input key display portion 38b of the first display area 37a
A predetermined display is performed. For example, the telephone number of the other party or a message such as "there is an incoming call" can be considered. In addition,
The incoming / outgoing call notification LED 28 may blink in synchronization with the ringing tone.

As described above, it is possible to easily confirm that there is an incoming call by turning on part of the display panel 14 in addition to the incoming call presence / absence notification LED 28. In particular, by displaying the above-described predetermined display in the lit first display area 37a, it is possible to make the telephone number or the like of the other party easier to see. Also, display image 3
Since only the first display area 37a is turned on instead of turning on the entire area 6, the power consumption can be reduced. In addition, when there is an incoming call, the incoming / outgoing call notification LED 2 is automatically provided.
8 and the first illuminating section 60 are turned on, it is not necessary to perform the lighting operation of the backlight one by one.

Next, when the hookup operation is performed on the portable terminal P side, the channel link is performed and the call state is set (step S202). The first lighting unit 60, which has been turned on when the telephone is in the call state, is turned on. However, when there is no need to look at the display panel 14 during the telephone call, the same as in the case of the above-mentioned calling. , 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 and the second lighting unit 62 while the first lighting unit 60 and the second lighting unit 62 are turned off, the first lighting operation switch 22 and the second lighting unit The operation switch 24 is pressed to light it.

Next, when the call is ended 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 above-mentioned call (step). S203). That is, when the "OFF" key is pressed, the pressed position is notified to the main control unit 58, and the main control unit 58 recognizes that the communication disconnection input key has been operated and processes the communication line disconnection instruction through the communication process. Part 5
Notify 0. Then, the communication processing unit 50 performs the disconnection processing of the communication line. In addition, when the disconnection operation is performed by pressing the "OFF" key, if the backlight is not lit in the second display area 37b, the second lighting operation switch 24
The second lighting unit 62 may be turned on by pressing. 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 presence / absence notification LED 28 and the first illuminating section 60 are provided.
Although it has been explained that the and are turned on, the incoming call presence notification LED
28 may be made to blink, and the 1st illumination part 60 may be made to blink. That is, the communication processing unit 50 notifies the main control unit 58 that there is an incoming call, performs processing for communication with the calling terminal, and the main control unit 58
Then, the LED display control unit 52 is notified of the incoming call presence / absence LE.
The LCD display control unit 4 is instructed to instruct D28 to blink.
0 is instructed to blink the first illumination unit 60. In the LCD display control unit 40, the lighting control unit 66 turns on the first illumination unit 60 in synchronization with the blinking of the incoming call presence / absence notification LED 28. That is, the incoming call presence / absence notification LED 28 and the first lighting unit 60
And flash in sync with the ringing tone. Further, the input key display portion 38b of the first display area 37a displays a predetermined number such as the telephone number of the other party.

With the above arrangement, it is possible to easily confirm the incoming call by blinking a part of the display panel 14 in addition to the incoming call presence / absence notification LED 28.
By displaying the above-mentioned predetermined display in the lit first display area 37a, the telephone number of the other party can be made more visible. Moreover, since only the first display area 37a is blinked, it is possible to reduce power consumption.
Further, since it automatically blinks when there is an incoming call, it is not necessary to turn on the backlight one by one. Furthermore, since the first lighting section 60 is caused to blink in synchronization with the incoming call presence / absence notification LED 28, it is possible to easily know that there is an incoming call. When the mobile terminal P has 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 this notification means.

Next, a second embodiment will be described. Second
The mobile terminal according to the embodiment also has substantially the same configuration as that of the first embodiment, but unlike the first embodiment, the first lighting unit 60.
And a switch for controlling lighting and extinction 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. There is no such thing.

That is, the first illumination unit operation key as a display key for operating the lighting of the first illumination unit 60 is displayed in the first display area, and as the display key for operating the lighting of the second illumination unit 62. It is assumed that the second illumination unit operation key is displayed in the second display area. That is, the first lighting operation key is provided instead of the first lighting operation switch 22, and the second lighting operation key is provided instead of the second lighting operation switch 24. The description of the same components as those in the first embodiment will be omitted. The functional block diagram is similar to that shown in FIGS. 3 and 4.

The operation of the mobile terminal of this embodiment will be described. The operation of the mobile terminal of the present embodiment is almost the same as that of the mobile terminal of the first embodiment, but the turning-off operation of the first lighting unit 60 and the second lighting unit 62 is different. That is, when the power operation 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 illuminated with the backlight. Then, a call operation is performed by performing a call operation, and a call state is set. At this time, when the backlight is turned off, the first illumination section operation key and the second key displayed in the display image are displayed. The illumination unit operation key is pressed to turn off the light.

Specifically, when turning off the first illumination unit 60, the first illumination unit operation key is pressed. 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 illumination 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 illumination unit 60. Similarly, when turning off the second illumination unit 62, the second illumination unit operation key is pressed. 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 to turn 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 illumination unit 62. When it is desired to turn on the backlight that has been turned off again, this can be done by pressing the first illumination unit operation key or the second illumination unit operation key again.

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

When a hookup operation is performed on the portable terminal side and a call is established (step S202),
Not only the first lighting unit 60 but also the second lighting unit 62 is turned on. That is, the first illumination unit operation key for performing the extinguishing operation of the first illumination unit 60 is displayed in the first display area, and the second illumination unit operation key for performing the extinction operation of the second illumination unit 62 is Since it is displayed in the second display area, the first lighting unit 6
Not only 0 but also the 2nd illumination part 62 is made to light together. Therefore, if the first lighting unit 60 is to be turned off during a call, the first lighting unit operation key is pressed, while if the second lighting unit 62 is to be turned off, the second lighting unit 62 is turned off.
Press the illumination unit operation key. On the other hand, the first lighting unit 60
When it is desired to turn on the first lighting unit 60 and the second lighting unit 62 while the second lighting unit 62 is off, the first lighting unit operation key and the second lighting unit operation key are pressed to turn on the light. To do so. Although the first lighting unit 60 and the second lighting unit 62 are turned on when receiving a call, the power consumption may be suppressed by turning on only the first lighting unit. 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 portion 38d, as in the case of the above-mentioned call (step S203).

According to the portable terminal of this embodiment, the display area of the display panel is divided and the backlight can be turned off for each display area, so that the power consumption can be reduced. In addition, in particular, the first lighting unit 60 and the second lighting unit 6
Since the switch for operating the lighting of No. 2 is composed of 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, the backlight is turned on and off by pressing the first illumination section operation key or the second illumination section operation key. However, a special display key is not provided, In the display image 36 as shown in FIG. 2, turning on and 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
The mobile terminal according to the embodiment also has substantially the same configuration as that of the first and second embodiments, but unlike the above embodiments, an operation switch for operating the lighting of the first lighting unit 60 and the second lighting unit 62, No operation key is provided, and the lighting of each illumination unit is controlled by opening and closing the lid 30. That is, as the 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 the display key for controlling the lighting.
Lighting is controlled according to the opening and closing of. The functional block diagram is similar to that shown in FIGS. 3 and 4.

The operation of the mobile terminal of the third embodiment will be described. The operation at the time of calling will be described with reference to FIG. 5. When the lid 30 is closed and the power source operation switch 20 is pressed to turn on the power (step S101), the first operation is performed.
The first illuminating unit 60 and the second illuminating unit 62 are turned on as in the embodiment and the second embodiment. Then, when a predetermined dial key is pressed and then a "start" key is pressed, a calling operation is performed (steps S102 to 104), and a call is possible (step S105).

Here, when the call is ready, the display of the dial keys and the like becomes unnecessary, and the lid 30 does not need to be opened. Therefore, it is expected that the lid is closed. When the lid is closed, the second lighting unit 62
It is not necessary to keep lit. Therefore, when the lid closing operation is performed, the second illumination section 62 is turned off. That is, when the lid is closed, the lid opening / closing detector 46 detects this,
Notify the main control unit 58. Then, the main control unit 58 instructs the time monitoring unit 48 to start measuring time, and also notifies the LCD display control unit 40 that the lid body 30 is closed. In the LCD display control unit 40,
The lighting control unit 66 turns off the second illumination unit 62.

On the other hand, in the time monitoring unit 48, the time from the closing operation of the lid 30 is measured by the notification from the main control unit 58, and when it is detected that a predetermined time has passed, the main control unit 58 is detected. Notify this to. Then, the main control unit 58 causes the LCD display control unit 40 to cover the lid body 30.
Notifies that a certain time has passed since the lid was closed. Then, in the LCD display control unit 40, the lighting control unit 66
Turns off the first illumination unit 60. That is, when the lid body 30 is closed, first, the second illumination section 62 is turned off, and then, after a predetermined time has elapsed, the first illumination section 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.

Regarding the operation at the time of incoming call, the first
This is almost the same as the embodiment, and will be described with reference to FIG. 6. When there is an incoming call (step S201), the incoming call presence / absence notification LED 28 and the first illumination unit 60 are turned on. Also, the telephone number of the other party or a predetermined message may be displayed. Further, the incoming call presence / absence notification LED 28 and the first lighting unit 60 may be made to blink. Further, when the lid opening operation is performed 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 the present embodiment, the backlight is automatically turned off by closing the lid, so that the power consumption can be reduced. In particular, since the first lighting unit 60 is also turned off after a certain period of time, it is possible to suppress unnecessary power consumption even when the user forgets to turn off the power. In addition, even if the lid 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 are displayed. It is possible to confirm the input dial keys and various messages displayed on the part 38b, and when various messages such as the call time and the call fee are to be sent after the call ends, the closing operation is performed after the call ends. Then, 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 certain period of time from the closing operation, but the first lighting unit 60 and the second lighting unit 62 are turned off simultaneously in conjunction with the closing operation. You may
As a result, the power consumption can be reduced more than when the first illumination unit 60 is turned off after a certain period of time.

Although the portable terminals of the first to third embodiments have been described above, the backlight lighting and extinguishing can be performed by appropriately combining the lighting and extinguishing functions of the backlight in each of the above embodiments. Good. For example, by combining the first embodiment and the third embodiment, the first lighting operation switch 22 and the second lighting operation switch 24 turn on and off the first lighting unit 60 and the second lighting unit 62, The lighting and extinguishing are controlled by opening and closing the lid 30. Then, when the user wants to turn off the backlight while in a call state, there are a method of turning off the light with each of the switches and a method of turning off the light with the lid. In addition, by combining the second embodiment and the third embodiment, the first lighting unit operation key and the second lighting unit operation key are used to turn on and off the first lighting unit 60 and the second lighting unit 62, Lighting and control may be controlled by opening and closing the lid 30.

Next, a fourth embodiment will be described. 4th
The mobile terminal in the embodiment also has substantially the same configuration as that of the first embodiment, but 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. The lighting of the lighting unit 60 and the second lighting unit is automatically controlled by time control as described below. That is, the main control unit 58 controls 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 in the first embodiment is omitted. The functional block diagram is similar to that shown in FIGS. 3 and 4.

The operation of the mobile 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 section 60 is turned on (S302). That is, the operation detection unit 44 detects that the power supply operation switch 20 has been operated, and notifies the main control unit 58 of this. The main control unit 58 instructs the LCD display control unit 40 to turn on the first illumination unit 60, and in the LCD display control unit 40, the lighting control unit 66 turns on the first illumination unit 60. Further, the main control unit 58 notifies the time monitoring unit 48 that the main control unit 58 has turned on the power by the power supply operation switch 20, and the time monitoring unit 48 starts the time monitoring process. Next, in the touch panel unit 42, it is detected whether or not a dial number is input. If no input is made, the process proceeds to step S304, and if an input is made, the process proceeds to step S306.

In step S304, the time monitoring unit 48 monitors whether or not a fixed time has passed since the power operation switch 20 was turned on. If the fixed time has passed, the process proceeds to step S305. That is, step S
In 305, if the dial number is not input for a certain period 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 through step S306, both the first lighting unit 60 and the second lighting unit 62 are turned off. That is, when a certain period of time has passed, the time monitoring unit 48 notifies the main control unit 58, and the main control unit 58 notifies the LCD display control unit 4
0 is instructed to turn off the first illumination section 60 or both the first illumination section 60 and the second illumination section 62. LCD
In the display control unit 40, the lighting control unit 66 turns off the first illumination unit 60 or both the first illumination unit 60 and the second illumination unit 62. As a result, when there is no input operation for a certain period of time, it is possible to reduce power consumption by turning off the backlight. Further, since the turn-off control is automatically performed, it is not necessary to turn off the lights one by one.

On the other hand, when the dial number is input within the fixed time, the first lighting section 60 and the second lighting section 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 has passed, Both the first lighting unit 60 and the second lighting unit 62 are turned on. This lighting is performed when even one dialed number is entered. Specifically, when the dial number is input, the main control unit 58 causes the LCD display control unit 40 to move the first illumination unit 60 and the second illumination unit 60.
It is detected whether or not the lighting unit 62 is turned off, and according to the detection result, the LCD display control unit 40 is instructed to turn off the lighting unit that is turned off.

Then, whether or not there is a calling operation is detected through the touch panel section 42 (step S307), and if there is a calling operation, a calling operation is performed and the input dial number is entered. The connection process with the terminal is performed, and the call with the other party becomes possible (step S308). On the other hand, if there is no calling operation, the process returns to step S303 to detect whether or not there is a dial number input, and the first lighting unit 60 is turned off after a certain period of time without any input (step S305). .

Next, when a certain period of time elapses in the call state, the second illumination section 62 is turned off. That is, the time monitoring unit 48 monitors whether or not a predetermined time has passed after the call state (step S310), and when the predetermined time has passed, the main control unit 58 is notified of this, and the main control unit 58 , And instructs the LCD display control unit 40 to turn off the second illumination unit 62. Then, in the LCD display control unit 40, the lighting control unit 66 causes the second illumination unit 6 to operate.
2 is turned off (step S311). In this way, the light is turned off after a certain period of time has passed from the call state, so that it is possible to reduce power consumption, and the light is automatically turned off, so that it is not necessary to perform each operation. Further, since the first lighting unit 60 is turned on, it is possible to easily check the reception sensitivity and the time. In the above description, it is assumed that the light is turned off after a certain period of time has passed from the call state, but it is turned off when there is no input by detecting whether there is an input for a certain period of time after the call state. You may do it.

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

The method of controlling the turning on and off of the first illuminating section 60 and the second illuminating section 62 is not limited to the above, and other methods may be used. That is, the above description is based on the pattern A in FIG.
However, the control may be performed according to the procedure from pattern B to pattern D. For example, in the pattern B, the first lighting unit 60 is turned on in step S302,
The first lighting unit 60 is turned off in step S305, and both the first lighting unit 60 and the second lighting unit 62 are turned on in step S306, which is the same as in the pattern A, but in step S311 the first lighting unit 60 is turned on. Both the second illumination unit 62 and the second illumination unit 62 are turned off. In this method, the first lighting unit 60 is also turned off after a certain period of time has passed since the call was made, so that the power consumption is further reduced. Pattern C and pattern D are for turning on the first illuminating section 60 and the second illuminating section 62 when the power is turned on. In pattern C, both illuminating sections are turned off in step S305. And
Both illumination units are turned on in step S306, the second illumination unit 62 is turned off in step S311, and step S313.
Then, the first illumination unit 60 is turned off. On the other hand, although the pattern D is substantially the same as the pattern C, the second illumination section 62 is turned off in step S305, and then the first illumination section 60 is turned off after a certain time has elapsed. In this pattern D, the first illuminator 60 has been on for a longer period of time, so the reception sensitivity and various messages can be confirmed.

Next, at the time of incoming call, if the power is turned on and the standby state is maintained, step S of FIG.
It operates like 301 to S305, and turns off the light when a fixed time has passed after the power is turned on. On the other hand, if there is an incoming call,
The first lighting unit 60 is turned on, and the first lighting unit 60 that is turned on is turned off after a certain period of time elapses after the call state. In addition, when the cutting operation is performed, the first lighting unit 6
You may make it turn off 0. Further, the first illuminating unit 60 and the second illuminating unit 62 may be turned on when a call is received, and thereafter, control may be performed as in step 309 and subsequent steps in FIG. 7. In that case, as the pattern of turning off, as shown in patterns A, C, and D, a method of turning off the second illuminating unit 62 in step S311, and turning off the first illuminating unit 60 in step S313, and a pattern As shown in B, a method of simultaneously extinguishing lights in step S311 can be considered.

Next, the above-mentioned time control method is for communication, but the following methods can be considered as methods other than communication. That is, unlike the display image shown in FIG.
The function key display portion 38d is also the first display area 37a.
It is assumed that the display image is included in the second display area 37b and only the dial key display portion 38e is included in the second display area 37b. Then, when the power is turned on, as shown in patterns A to D of FIG. 8, only the first lighting unit 60 is turned on or the first lighting unit 60 and the second lighting unit 62 are turned on. Then, after a certain period of time has passed, the illuminating unit that has been turned on is turned off. After that, when there is no call or incoming call and only the keys of the first display area 37a are used, such as the case where only the function keys are operated, the dial keys are not required, so only the first lighting unit 60 is turned on. To do. As a result, the second lighting section 62 is turned off, so that it is possible to reduce power consumption, and since lighting control is automatically performed, it is not necessary to perform each operation. Further, since the first illuminator 60 is turned on, it is possible to confirm the reception sensitivity, the time, and the like.

In each of the above embodiments, the display panel 14 including the touch panel section 42 and the LCD display 64 is used, and the display area of the display panel 14 is divided into the first display area 37a and the second display area 37b. Although it has been described that the illumination unit that irradiates the display area with the backlight is separately controlled, in a normal mobile phone device that does not use a touch panel with an LCD, key input is performed by button input and the display screen is illuminated by the first illumination. It lights up in section 60,
The function keys and dial keys may be turned on by the second lighting section 62. In addition, in the configuration of a normal mobile phone device, the irradiation target of the first lighting unit 60 may be the dial key input result display region, and the irradiation target of the second lighting unit 62 may be the various message display regions.

Further, in each of the above-mentioned embodiments, the pressure sensitive touch panel is used, but any electrostatic touch type or electromagnetic induction type may be used as long as it is a touch panel. Further, a digitizer other than the touch panel may be used instead of the touch panel. Further, in each of the above embodiments, the transmitter portion 18c is provided outside the lid body 30, but a hole portion may be provided in the lid body 30 to use the transmitter portion 18a. Further, in each of the above-described embodiments, the display area is divided into two and the backlight is emitted from the two illumination units, but the display area may be divided into three or more. Further, in each of the above-described embodiments, the mobile terminal as a telephone device was 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 respective divided display areas are individually illuminated with the backlight.

[0064]

According to the display device and the portable terminal according to the present invention, the image display section is divided into a plurality of display areas, and the plurality of display areas are respectively turned on by the illumination means.
Only the required display area needs to be turned on, and power consumption can be reduced.

[Brief description of drawings]

1A and 1B are diagrams showing a configuration of a mobile terminal according to an embodiment of the present invention, in which 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 showing a configuration of a mobile terminal according to an embodiment of the present invention.

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

FIG. 5 is a flowchart for explaining an operation when making a call.

FIG. 6 is a flow chart for explaining an operation when receiving a call.

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

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

[Explanation of symbols]

 P mobile terminal 10 mobile terminal main body 12 antenna 14 display panel 16, 54 earpiece 18a, 18b, 18c, 56 transmitter 20 power operation switch 22 first illumination operation switch 24 second illumination operation switch 26 power status notification LED 28 arrival Call presence / absence notification LED 30 Lid body 32 Hinge portion 36 Display image 37a First display area 37b Second display area 40 LCD display control section 42 Touch panel section 44 Operation detection section 46 Lid opening / closing detection section 48 Time monitoring section 50 Communication processing section 52 LED display control unit 58 Main control unit 60 First illumination unit 62 Second illumination unit 64 LCD display 66 Lighting control unit 68 LCD display control unit

Claims (13)

[Claims] 1. A display device having an image display section, wherein the image display section is divided into a plurality of display areas, and a plurality of illumination means for respectively lighting the plurality of display areas, and a plurality of the illumination means. And a lighting control unit that controls lighting. 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 between turning on and off the plurality of lighting means. 5. The lighting operation means has a display key displayed on the LCD display, and by pressing an area of the touch panel corresponding to the display key, the lighting means is switched on and off. The display device according to claim 4, wherein: 6. The display device further comprises time monitoring means for monitoring the elapsed time after a predetermined key operation is performed,
6. The display device according to claim 1, wherein the lighting control unit controls lighting and extinguishing of the plurality of lighting units according to the monitoring result of the time monitoring unit. 7. The display device further includes a lid body that covers a part of the image display unit, and the plurality of illumination means are exposed to the outside in a closed state of the lid body. A first illumination unit that lights the display area, and a second illumination unit that covers the lid body in a closed state.
The display device according to any one of claims 1 to 6, further comprising: a second illumination unit that lights a display area. 8. The first display area displays the reception sensitivity, the input key and the message, and the second display area displays function keys and dial keys. The display device according to claim 7. 9. The display device further includes a lid opening / closing detection means for detecting opening / closing of the lid, and the lighting control means detects that the lid is closed by the lid opening / closing detection means. The display device according to claim 7 or 8, wherein the second illumination unit is turned off in the case of lighting. 10. The lighting control means further turns off the first illuminating part after a lapse of a predetermined time when the lid opening / closing detecting means detects that the lid is closed. The display device according to claim 9. 11. The display device further comprises an incoming call detecting means for detecting an incoming call, and the lighting control means turns on the first illuminating section when the incoming call is detected by the incoming call detecting means. The display device according to claim 7, wherein the display device is a display device. 12. The display device further comprises an incoming call notification means that blinks when an incoming call arrives, and the lighting control means synchronizes with the incoming call notification means when the incoming call is detected by the incoming call detection means. The display device according to claim 11, wherein the first lighting unit is blinked. 13. A mobile terminal comprising the display device according to claim 1.