JPH1114960A - Portable electronic equipment and its control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce power consumption of a battery as a power source for a portable electronic equipment by forcibly cutting off power conducting to a moving display means in response to an output signal for identifying the moving of the portable electronic equipment. SOLUTION: A using environment state determining means 1 determines, while a display means 4 is opened and in an operating state, whether a portable electronic equipment 20 is in a static state, i.e., placed on a desk or a book, or on a lap, or in a moving state by being lifted in air. A display means control means 3 controls an LCD power supply 7 and the transmission of display data 8 to an LCD display 4. Then, while a signal 5 is inputted from the using environment state determining means 1, the LCD power supply 7 and the LCD display data 8 are cut off. Even when the sensor signal 5 is not inputted, based on a power control signal 6 from a power control circuit 2 as a central processing means, the LCD power supply 7 and the LCD display data 8 are cut off.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable electronic device, and more particularly, to a power-saving oriented system in a portable electronic device, and more particularly, to a display means using a liquid crystal. The present invention relates to a power-saving device for a portable electronic device using the same.

[0002]

2. Description of the Related Art In recent years, a portable computer driven by a battery often uses an LCD display with low power consumption. However, in order to extend the driving time, LC
It is common to mount a control circuit of the LCD display that stops the display when it is not necessary to display on the D display.

[0003] The LCD display is generally of the openable and closable type.
When the CD display is closed, the LCD
There are devices that control the power supply of the display. A timer or the like is used when there is no keyboard input for a certain period of time, or when there is no access to a certain I / O or memory for a certain period of time and it is not necessary to display predetermined information on an LCD display. Control to turn off the power of the LCD display.

Further, Japanese Patent Application Laid-Open No. 4-271321 discloses that the presence or absence of an operator in front of an LCD display is detected, and when the detection means detects that no operator is present, the LCD display is detected. A control device of a display means configured to control the power supply of the display device is described.

[0005]

Generally, in portable electronic devices mainly including portable computers, the electronic devices often move from desk to desk due to their characteristics. . During the movement, the portable electronic device is hardly operated, and thus the power can be saved by turning off the power of the LCD display at least during the movement period of the portable electronic device.

However, in the above-described control by opening and closing the LCD display, if the LCD display is moved without closing, L
The power of the CD display cannot be turned off and is not effective. In addition, the control by the timer is not effective because the display is continued even during the movement if the time is within the timer set time. Furthermore, if the method of detecting the presence or absence of an operator is detected by a sensor, a person carrying the mobile device is detected as an operator when moving, and thus the L is detected.
The power of the CD display cannot be turned off and is not effective.

SUMMARY OF THE INVENTION An object of the present invention is to improve the above-mentioned disadvantages of the prior art, and to provide a portable electronic device including a portable computer having an LCD display while the portable electronic device is being moved. The object of the present invention is to turn off the power and thereby reduce the consumption of a battery which is a power source of the portable electronic device.

[0008]

The present invention employs the following technical configuration to achieve the above object. That is, in a portable electronic device including a main body having input means and a lid having display means provided to be openable and closable with respect to the main body, the display means is opened in the main body. Operating environment state determining means relating to the portable electronic device in a state where the portable electronic device is moving, in response to an output signal recognizing that the portable electronic device is moving. The portable electronic device is provided with a forced energization cutoff means for forcibly interrupting energization of the display means.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS That is, in the portable electronic device according to the present invention, the above-described technical configuration is adopted.
More specifically, for example, a detection unit is provided at the bottom of the housing of the portable electronic device, and LC
It is configured to control the power supply of the D display, and the detecting means is such that the bottom of the housing of the portable electronic device is a desk, a book,
It is configured to detect that the portable electronic device is not moved to rest on a fixed object such as a knee, that is, to detect a state in which the portable electronic device is moved, and cut off the connection between the display unit and the power supply. On the other hand, the bottom of the housing of the portable electronic device is a desk,
When a state of being left standing on a fixed object such as a book or a knee is detected, the connection between the display means and the power supply is continued.

In the present invention provided with such a use environment state discriminating means, when the portable computer is placed on a desk or the like, the sensor detects that the sensor is in contact with the desk and the power of the LCD display is kept on. Up to. When the portable computer is lifted from the desk, such as while carrying, the sensor detects that the bottom surface is not in contact with the desk, thereby turning off the LCD display.

As a result, even if the operator moves the portable computer with the main power turned on, the power supply to the LCD display is interrupted during the movement, thereby saving power consumption.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a portable electronic device according to the present invention. That is, FIG. 1 is a block diagram illustrating an outline of a circuit configuration in a portable electronic device according to the present invention, and FIG. 2 is a perspective view illustrating an example of an appearance of the portable electronic device according to the present invention. is there.

As can be understood from the above figures, the input means 1
In a portable electronic device 20 comprising a main body 10 having a display unit 1 and a lid 12 having a display means 4 provided to be openable and closable with respect to the main body 10, the display means is provided on the main body 10. The use environment state determining means 1 relating to the portable electronic device 20 in a state where the portable electronic device 20 is open, and an output signal for recognizing that the portable electronic device 20 is moving. In response to the forcible energizing cutoff means 3 for forcibly interrupting energization of the display means 4 in operation.
Is shown in the portable electronic device 20 provided with.

The portable electronic device used in the present invention is not particularly specified. For example, a display device 4 such as a notebook personal computer, a notebook word processor, and an electronic organizer may be used. Mobile terminals and the like. As the display means 4 used in the present invention, for example, a display means using a liquid crystal is preferable.

Further, it is desirable that the display means 4 made of the liquid crystal or the like used in the present invention is integrally formed with an appropriate lid member 12. The keyboard constituting the input means 11 is rotatable around an appropriate pivot provided on the main surface of the main body 1 so as to cover or open the keyboard.

That is, the portable electronic device 20 according to the present invention
As a more detailed configuration example, for example, the input unit 11
A portable electronic device 20 including a main body 10 having a display unit 4 and a lid 12 having a display unit 4 provided to be openable and closable with respect to the main unit 10, and supplying a predetermined power to the display unit 4. Power supply means 7 for display means, image data output means 8 for outputting image data to be displayed on the display means 4, power supply means 7 for display means, and image data output means 8
In a portable electronic device 20 having a built-in control system constituted by a display control means 3 for driving and controlling the display means 4 under the control of the central processing means 2, In part, while the display unit 4 is operating, the use environment state determination unit 1 that determines whether the portable electronic device 20 is stationary or moving, and the use environment state determination unit The portable electronic device 20 by means 1
In response to an output signal recognizing that the display means 4 is moving, a forced power cutoff means 9 for forcibly cutting off the power supply to the display means 4 in operation.

According to the present invention, the forced energizing cutoff means 9 is provided.
May be provided as an internal circuit of the display means control means 3 or between the display means control means 3 and the use environment state determining means 1 or between the display means control means and the display means 4. May be provided. On the other hand, the use environment state determination means 1 used in the present invention is desirably provided on the bottom surface of the main body 1 of the portable electronic device 20, but is not necessarily limited to such a position. Absent.

Further, the use environment state determining means 1 according to the present invention, when the display means 4 is opened and the display means 4 is in operation, allows the portable electronic device 20 to operate on a desk or Detecting means for judging whether it is in a stationary state, such as being placed on a book or on a knee, or being lifted in the air and moving; For example, a switch means for performing a switching operation by a physical action, for example, a switch having a structure in which a detection unit moves and displaces when contact with a fixed member is lost to change a switch state, or a photodetector can be used. It is also possible to use a switch means for performing a switching operation based on the presence / absence of a predetermined amount of light.

In the present invention, it is sufficient that at least one of the use environment state determination means 1 is provided on the bottom surface of the main body of the portable electronic device. If one corner of the bottom of the body of the device 20 is lifted for any reason, even if it is not moving,
The display means 4 will be forcibly shut off, and the application being worked on will be interrupted,
Alternatively, there is a risk that the processed information may be destroyed or an error may occur, and it is required to complicate the operation of starting the application from the beginning.

Therefore, in order to solve such a problem, it is desirable that a plurality of the use environment state determining means 1 be provided on the bottom surface of the main body of the portable electronic device 20. In such a case, each detection signal output from the plurality of use environment state determination means 1 is, for example, an appropriate A
After inputting to the ND circuit and confirming that the detection signals of all the portable electronic devices 1 are moving, the power supply to the display means 4 can be cut off.

Further, in the present invention, the use environment state determining means is further provided with a timer means 22, and the use environment state determination means 1 is first provided with the main body section 1.
If the moving state of the main body 10 is not detected within a predetermined time after detecting the moving state of 0, the output signal from the use environment state determining means 1 is invalidated. It is also desirable to have.

That is, as described above, the portable electronic device 20 according to the present invention is relatively lightweight, so that the main body 10 of the portable electronic device 20 may be lifted for any reason. possible. However, in such cases,
The main body 1 of the portable electronic device 20 once lifted
0 often returns immediately and keeps it still,
Therefore, as described above, if it is determined that the portable electronic device 20 is in the moving state and the power supply to the display unit 4 is cut off, the same problem as described above occurs.

Therefore, in the present embodiment of the present invention, even if a certain portable electronic device 1 once determines that the portable electronic device 20 has been moved, the display means 4 is immediately turned on.
After seeing the state for a while without interrupting the power supply to
It is preferable that the power supply to the display unit 4 be cut off only when the moving state of the portable electronic device 20 is determined to be reliable.

As a specific example for this purpose, a timer means is provided in addition to the use environment state discriminating means 1, and the use environment state discrimination means 1 detects a moving state of the portable electronic device 20 and then determines a predetermined predetermined time. If the detection information of the use environment state determination means 1 does not change even after the delay time has elapsed, the moving state of the portable electronic device 20 is confirmed. Therefore, it is preferable that the power supply to the display means 4 be cut off.

In connection with the present invention, when the portable electronic device 20 is in a moving state and a state in which the user wants to use the portable electronic device occurs, the use environment state determining means 1 is used. It is also possible to provide appropriate switch means for shutting off the output of. Portable electronic device 20 according to the present invention
The configuration and operation of the portable electronic device 20 will be described in more detail with reference to the drawings. In FIG. Is detected and surface contact is not detected,
It outputs a sensor signal 5 which is a movement state detection signal to the display means control means 3, and the use environment state determination means 1
For example, a push switch is used.

The use environment condition judging means 1 is installed on the bottom of a portable computer as shown in FIG. 2, for example. The push switch 1 is pressed when it is placed on a desk, and is separated by floating from the desk, so that the state can be monitored. In FIG. 1, a power management circuit 2 used as an example of the central processing unit 2 is configured to operate when a keyboard is not operated for a certain period of time or when a specific I / O, memory, or the like is not accessed for a certain period of time. , And LC
This is a conventionally known control circuit that detects the open / close state of the D display 4 and outputs a signal 6 for controlling the display state of the LCD display 4 to the display control means 3.

The display control means 3 comprises an LCD power supply 7 and an L
The transmission of the CD display data 8 to the LCD display 4 is controlled. The LCD power supply 7 and the LCD display data 8 are shut off while the signal 5 from the use environment state determining means 1 is being input. Further, even when the sensor signal 5 is not input, the LCD power supply 7 and the LCD display data 8 are cut off based on the power supply control signal 6 from the power supply management circuit 2 which is the central processing means.

The LCD power supply 7 is a power supply for driving the LCD display 4. The LCD display data signal 8 is data such as characters and images to be displayed on the LCD. LCD display 4 is LC
This is a device for displaying D display data 8 and is a known device including an LCD panel and a backlight. Next, the operation of the block diagram of FIG. 1 will be described.

The use environment state discriminating means 1 senses that it is in contact with the desk, and notifies the display means control means 3. Accordingly, the display control unit 3 transmits the LCD power 7 and the display data signal 8 to the LCD display 4. Portable electronic device 20
Is lifted from the desk, the use environment state determining means 1 senses that it is not in contact with the desk, and notifies the display means control means 3.

The display means control means 3 is controlled by the LCD
The power supply 7 and the display data signal 8 are cut off, and the power of the LCD display 4 is turned off. As described above, the method for controlling the portable electronic device 1 according to the present invention includes the main body having the input means and the lid having the display means which can be opened and closed with respect to the main body. In the portable electronic device, when the display means 4 is opened in the main body and the display means 4 is operated, the portable electronic device 20 is placed on a desk or a book. To determine whether the portable electronic device 20 is moving or not, or whether the portable electronic device 20 is moving. In some cases, based on the determination, the control method of the portable electronic device is configured to forcibly cut off the power supply to the display unit 4 in operation.

[0031]

Since the portable electronic device according to the present invention employs the above-described technical configuration, the LCD is automatically set when the portable electronic device is not placed on a desk or the like.
Since the power of the display 4 is turned off, the portable electronic device 20
Since the power consumed by the display means 4 during the movement of the vehicle can be prevented, the life of the power supply such as a battery can be extended.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a specific example of a portable electronic device according to the present invention.

FIG. 2 is a perspective view showing the appearance of a specific example of the portable electronic device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Usage environment state discrimination means 2 ... Central processing means, power supply management circuit 3 ... Display means control means 4 ... Display means 5 ... Sensor signal 6 ... Power supply control signal 7 ... Power supply means for display means, LCD power supply 8 ... Image data output Means 9 ... Forced energization cutoff means 10 ... Main body part, housing part 11 ... Input means 12 ... Lid member 20 ... Portable electronic equipment 22 ... Timer means

Claims (8)

[Claims] 1. A portable electronic device comprising: a main body having input means; and a lid having display means provided to be openable and closable with respect to the main body. In a state where the portable electronic device is open, the use environment state determination unit and the use environment state determination unit respond to an output signal that recognizes that the portable electronic device is moving. A portable electronic device comprising: a forced energization cutoff means for forcibly interrupting energization of the display means during operation. 2. A portable electronic device comprising: a main body having input means; and a lid having display means provided to be openable and closable with respect to the main body, wherein a predetermined power is supplied to the display means. Power supply means for display means for supplying, image data output means for outputting image data to be displayed on the display means,
A portable electronic device having a built-in control system connected to the display means power supply means and the image data output means and comprising a display means control means for driving and controlling the display means under the control of a central processing means; In a part of the main body, use environment state determination means for determining whether the portable electronic device is in a stationary state or moving while the display means is operating; In response to an output signal by the use environment state discriminating means for recognizing that the portable electronic device is moving, forcibly energizing cut-off means for forcibly interrupting energization to the operating display means. Portable electronic equipment characterized by the fact that it is. 3. The portable electronic device according to claim 2, wherein said forced power cutoff means is provided as a part of said display means control means. 4. The portable electronic device according to claim 1, wherein the use environment state determining means is provided on a bottom surface of the main body of the portable electronic device. 5. The operating environment state determining means includes one switching means selected from a switching means for performing a switching operation by a physical action and a switching means for performing a switching operation based on the presence or absence of light. The portable electronic device according to any one of claims 1 to 4, wherein: 6. The portable electronic device according to claim 4, wherein a plurality of the use environment state determining means are provided on a bottom surface of the main body of the portable electronic device. 7. The operating environment state determining means further includes a timer means, and the operating environment state determining means detects the moving state of the main body first within a predetermined period of time. 7. The portable device according to claim 1, wherein the output signal from the use environment state determining means is invalidated when the moving state of the unit is no longer detected. For electronic equipment. 8. In a portable electronic device comprising a main body having input means and a lid having display means which can be opened and closed with respect to the main body, the display means is provided on the main body. Is opened and in a state where the display means operates,
Determine whether the portable electronic device is stationary or moving, and forcibly energize the operating display means based on the determination that the portable electronic device is moving. A method for controlling a portable electronic device, characterized in that the portable electronic device is shut off.