JP2014045251A - Portable information terminal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to adjust centroid balance without needing complicated control in whatever holding direction a user holds equipment.SOLUTION: In a portable information terminal device, a housing 200 is provided so as to surround a periphery of an electronic circuit board (not shown) including a control part, and silicon oil 210 is housed in the housing 200. If a holding direction of a tablet type computer 10 is changed to change a centroid direction, the silicon oil 210 is fluidly movable in the housing 200 as the centroid direction is changed. When a user is using the device while holding it with hands, even if the user alters the holding direction, the silicon oil 210 fluidly moves in the housing 200 in response to the altered holding direction, thereby a centroid position is automatically adjusted so as to fall downward.

Description

  The present invention relates to a portable information terminal device including a display unit such as a touch panel.

  In portable information terminal devices such as tablet computers and smartphones, input means such as a touch sensor is provided on the surface of a display unit formed of a liquid crystal panel or the like. In such a portable information terminal device, an input software key is displayed using a liquid crystal panel, and a user operates a touch sensor on the liquid crystal panel with a finger or a stylus pen (input pen) while visually recognizing the software key. To input desired information.

  Such a portable information terminal device can be operated by being held by a user's hand as disclosed in Patent Document 1, for example. Therefore, it is possible to display a software key on a display unit such as a liquid crystal panel or switch the direction of an image to be displayed according to the direction held by the user.

  However, when such a portable information terminal device is held and operated, there is a risk that it may be accidentally dropped depending on the case where the position of the center of gravity is on the upper side of the device and is not stable and difficult to hold. As a conventional technique for solving such a problem, for example, a portable electronic device as disclosed in Patent Document 2 has also been proposed.

  In the portable electronic device disclosed in Patent Document 2, the direction in which the device is held is determined based on the direction of gravity acceleration detected by the gravitational acceleration sensor, and the position of the center of gravity is adjusted based on the determination result. Things have been done. According to the portable electronic device disclosed in Patent Document 2, since the weight is moved along the guide shaft in accordance with the direction in which the device is held, the process of adjusting the position of the center of gravity is performed. Can be operated without a sense of incongruity whether it is held in a horizontally long state or a vertically long state.

JP 2012-155480 A JP 2012-109834 A

  However, the portable electronic device described in Patent Document 2 requires a complicated process of detecting the orientation of the device with a gravitational acceleration sensor and moving the weight along the guide shaft by driving the motor. In addition, since the center of gravity is not moved unless the device is turned on, the center of gravity is not moved when the direction of holding the device in the off state is changed. There is also a problem of end.

  Furthermore, in the portable electronic device described in Patent Document 2, since the center of gravity moving means is mechanically realized, the holding direction differs by 90 degrees as in the case where the device is held in a horizontally long state or a vertically long state. The center of gravity can be adjusted in the case of two directions, but it is difficult to cope with the case where the holding direction becomes four directions, such as when the holding direction is changed by 180 degrees or 270 degrees. There is also.

And if such a portable electronic device described in Patent Document 2 adjusts the balance of the center of gravity corresponding to the four holding directions, complicated control is required, and the center of gravity adjustment means is also complicated. You will need a configuration.

  Therefore, the present invention has an object to solve the above-described problems, and it is possible to adjust the balance of the center of gravity when the user holds the device in any holding direction without requiring complicated control. An object of the present invention is to provide a portable information terminal device.

In order to achieve the above object, in the present invention, a display unit for displaying an image;
An input unit having a touch sensor unit disposed on the surface of the display unit;
In a portable information terminal device comprising: a control unit that controls image content displayed on the display unit based on information input by the input unit;
The portable information terminal device
A fluid that is fluidly movable with changes in the direction of gravity;
A container for containing the fluid.

  According to the present invention, even if the holding direction is changed when the user holds the portable information terminal device of the present invention in his / her hand, the fluid is contained in the container portion according to the changed holding direction. The center of gravity is automatically adjusted to be downward by moving fluidly. Therefore, according to the present invention, it is possible to adjust the balance of the center of gravity even when the user holds the portable information terminal device in any holding direction without requiring complicated control.

  Moreover, in this invention, you may make it provide the said container so that the circumference | surroundings of the electronic circuit board containing the said control part may be enclosed.

  Moreover, in this invention, you may make it provide the said container in the layer different from the main body layer in which the electronic circuit board containing the said control part is comprised.

  Furthermore, in the present invention, the layer in which the container is provided may be configured to be detachable from the main body layer in which the electronic circuit board including the control unit is configured.

  According to the present invention, when there is no need to adjust the balance of the center of gravity, such as when used without changing the holding direction, the layer provided with the container is removed from the main body layer. This makes it possible to reduce the overall weight.

  In addition, the fluid in the present invention may be any of a liquid, a granular body, or a powdered body.

  According to the present invention, it is possible to obtain an effect that the center-of-gravity balance can be adjusted regardless of the holding direction in which the user holds the device without requiring complicated control.

It is a figure for demonstrating the external appearance of the tablet computer 10 of one Embodiment of this invention. 1 is an internal block diagram of a tablet computer 10 according to an embodiment of the present invention. It is a figure which shows an example of the display control at the time of rotating the tablet computer 10 of one Embodiment of this invention every 90 degree | times. It is a figure for demonstrating the internal structure of the tablet computer 10 of one Embodiment of this invention. It is a figure for demonstrating an internal structure at the time of rotating the holding | maintenance direction of the tablet computer 10 of one Embodiment of this invention 90 degree | times from the holding | maintenance direction shown in FIG. It is a figure for demonstrating the internal structure of the tablet computer 10a of other embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the embodiment described below exemplifies a tablet computer as a portable information terminal device for embodying the technical idea of the present invention, and the present invention is not limited to this tablet computer. It can also be applied to other devices such as communication information terminal devices such as smartphones and portable display devices.

  First, with reference to FIG. 1, the external appearance of the tablet computer 10 of this embodiment is demonstrated. In the tablet computer 10 of the present embodiment, a display unit such as a liquid crystal panel is a touch panel 20 and can receive a user operation. On the touch panel 20, various software keys 31 to 35 can be displayed, and an area for receiving character input by a stylus pen can be displayed.

  Next, the internal configuration of the tablet computer according to the present embodiment will be described with reference to FIG. FIG. 2 is an internal block diagram of the tablet computer according to the present embodiment.

  As shown in FIG. 2, the tablet computer 10 according to the present embodiment includes a control unit 100, an external power input unit 110, a secondary battery 120, a wireless communication unit 130, a camera 140, and a vibration sensor 150. , An angle sensor 160, an input unit 170, a display unit 180 constituting the touch panel 20, and a speaker 190.

  Further, the control unit 100 is a microprocessor including a CPU 100, a ROM 102, and a RAM 103, and controls and supervises the operation of each function of the tablet computer 10 by executing a program stored in the ROM 102 on the CPU 100.

  The external power input unit 110 includes a power cord connector, a voltage control circuit, a charge control circuit (not shown), and the like. The power cord connecting connector is formed on one of the side surfaces of the housing of the tablet computer 10 to which a power cord plug is connected. When the power cord plug is connected to the power cord connector, DC power that has been stepped down to a predetermined voltage from a commercial power source is supplied to the tablet computer 10 via a transformer or the like. The voltage control circuit adjusts the voltage of the supplied power to a constant value and continuously supplies power to each part of the tablet computer 10.

  Further, the charging control circuit detects whether or not the power cord plug is connected to the power cord connecting connector, and when the power cord plug is connected and the secondary battery 120 described later is not fully charged. The secondary battery 120 is charged by supplying power of a predetermined voltage or a predetermined current to the secondary battery 120. Further, when the secondary battery 120 is fully charged, the charge control circuit ends the charging of the secondary battery 120. The charging control circuit supplies power charged in the secondary battery 120 to each part of the tablet computer 10 when the power cord plug is not connected to the power cord connector. Ensure that power is supplied.

  The secondary battery 120 is accommodated in the form of a battery pack in the housing of the tablet computer 10. The secondary battery 120 is, for example, a lithium ion secondary battery.

  The wireless communication unit 130 is for the tablet computer 10 to communicate with an access point using wireless. When the tablet computer 10 communicates with an access point, the wireless communication unit 130 performs control including establishment and disconnection of a communication session. If there is data to be transmitted, the data is encoded and then packetized, and transmitted to the access point using radio at a predetermined frequency. When data is received from the access point, decoding is performed after the packet is assembled, data to be received is acquired, and stored in the RAM 103.

  The camera 140 is a built-in camera provided on the same side of the housing of the tablet computer 10 as the surface on which the touch panel 20 is provided, so that the user's state can be photographed when the user operates the touch panel 20. It has become.

  The vibration sensor 150 is configured by an acceleration sensor, and measures acceleration applied to the tablet computer 10. In particular, a change in gravitational acceleration applied to the tablet computer 10 is detected to determine the orientation of the tablet computer 10, and the orientation of the image displayed on the touch panel 20 by the control unit 100 is determined accordingly. Or sideways.

  The angle sensor 160 is constituted by an angular acceleration sensor, and detects a change in the rotation angle of the tablet computer 10 per unit time. The detected change in the rotation angle is used for camera shake detection of the camera 140 and the like.

  The input unit 170 includes a touch sensor 171 and a mechanical switch 172. The touch sensor 171 is provided on the surface of the display unit 180. The touch sensor 171 outputs the position information where the contact is detected when the user makes a contact with a specific part of the touch panel 20 with a finger or a stylus while visually recognizing the software button displayed on the display unit 180. The mechanical switch 172 is a mechanical switch such as a push button switch provided in the housing of the tablet computer 10 and is used to perform operations such as turning on / off the power source and turning on / off the display unit 180.

  The display unit 180 is provided at a position that occupies most of one surface of the tablet computer 10, and includes a liquid crystal panel unit, an organic EL panel unit, or the like. The display unit 180 displays various images such as software buttons generated by the control unit 100. That is, the control unit 100 controls the image content displayed on the display unit 180 based on the information input by the input unit 170 and the like.

  The speaker 190 is built in the tablet computer 10 and outputs audio amplified by an amplifier (not shown) when audio data or the like stored in the ROM 102 is reproduced.

  In the tablet computer 10 of the present embodiment, the control unit 100 determines the held direction based on information from the vibration sensor 150 and the angle sensor 160 and switches the orientation of the image displayed on the display unit 180. Such control is performed.

  For example, as shown in FIG. 3, even when the holding direction of the tablet computer 10 is rotated every 90 degrees, the display content always matches the upper side of the image with the upper side of the device. Is possible.

  The tablet computer 10 according to the present embodiment is provided with a configuration that can adjust the center-of-gravity balance even when the holding directions are in various directions.

  Such a configuration will be described with reference to FIG. FIG. 4 is a diagram for explaining the internal structure of the tablet computer 10 according to the present embodiment.

  In the internal structure shown in FIG. 4, a container 200 is provided so as to surround an electronic circuit board (not shown) including the control unit 100, and silicon oil 210 is stored in the container 200. Yes. When the holding direction of the tablet computer 10 is changed and the direction of gravity is changed, the silicon oil 210 can be fluidly moved in the container 200 along with the change in the direction of gravity.

  According to the tablet computer 10 of the present embodiment, even if the holding direction is changed when the user is holding it in his / her hand, the silicon in the container unit 200 is changed according to the changed holding direction. The oil 210 moves fluidly. Then, the silicon oil 210 is automatically adjusted so that the center-of-gravity position is lowered by the fluid movement of the silicone oil 210 in the container portion 200. Therefore, according to the present embodiment, it is possible to adjust the center of gravity balance even when the user holds the tablet computer 10 in any holding direction without requiring complicated control.

  For example, FIG. 5 shows an internal structure when the holding direction of the tablet computer 10 of this embodiment is rotated 90 degrees from the holding direction shown in FIG.

  In the diagram shown in FIG. 5, the tablet computer 10 is held so as to be in a horizontally long state. However, when the holding direction is changed, the silicon oil 210 moves downward in the gravitational direction in the container 200. Yes. Therefore, even when the holding direction is changed, the center of gravity is moved downward, so that the user can hold the tablet computer 10 in a stable state.

  As described above, in the tablet computer 10 according to the present embodiment, the center of gravity position can be moved downward regardless of detection by an acceleration sensor or the like, so that the center of gravity accompanying the change in the holding direction without requiring complicated control. The balance can be adjusted.

  In the present embodiment, the case where the silicon oil 210 is used as the fluid to be accommodated in the container 200 is described, but the present invention is not limited to such a configuration.

  Since the silicone oil 210 used in this embodiment is a viscous liquid, it takes some time to move, but there is an advantage that no sound is generated even when the container 200 is moved. However, for example, a liquid such as water other than the silicone oil 210 can be used as a fluid that accommodates the container 200. In addition to liquids, fluids that can move fluidly with changes in the direction of gravity, for example, small resinous or metal spheres, granular materials such as sand, and powdery materials can be used as fluids. It can also be used.

  Furthermore, the internal structure of the tablet computer 10a according to another embodiment of the present invention will be described with reference to FIG.

In the configuration shown in FIG. 6, the tablet computer 10 a has a two-layer structure, and a balance adjustment in which the main body layer 320 including the electronic circuit board including the control unit 100 and the container 200 a are configured. Layer 310.

  As described above, since the container 200a is provided in the balance adjustment layer 310 different from the main body layer 320, the center of gravity balance can be adjusted without reducing the space of the main body layer 320.

  However, if such a configuration is adopted, the tablet computer 10a has a two-layer structure, which increases thickness and weight.

  Therefore, the balance adjustment layer 310 provided with the container 200a may be configured to be detachable from the main body layer 320 on which the electronic circuit board including the control unit 100 is configured.

  By making the balance adjustment layer 310 and the main body layer 320 detachable in this way, the balance adjustment layer 310 can be removed from the main body layer 320 when there is no need to adjust the center of gravity balance. It becomes.

10, 10a Tablet computer (personal digital assistant)
20 Touch Panel 31-35 Software Key 100 Control Unit 101 CPU
102 ROM
103 RAM
DESCRIPTION OF SYMBOLS 110 External power supply input part 120 Secondary battery 130 Wireless communication part 140 Camera 150 Vibration sensor 160 Angle sensor 170 Input part 171 Touch sensor 172 Hard key 180 Display part 190 Speaker 200, 200a Container 210 Silicon oil 310 Balance adjustment layer 320 Main body layer

Claims (5)

A display for displaying an image;
An input unit having a touch sensor unit disposed on the surface of the display unit;
In a portable information terminal device comprising: a control unit that controls image content displayed on the display unit based on information input by the input unit;
The portable information terminal device
A fluid that is fluidly movable with changes in the direction of gravity;
A portable information terminal device comprising: a container for containing the fluid.   The portable information terminal device according to claim 1, wherein the container is provided so as to surround an electronic circuit board including the control unit.   The portable information terminal device according to claim 1, wherein the container is provided in a layer different from a main body layer on which an electronic circuit board including the control unit is configured.   The portable information terminal according to claim 3, wherein the layer in which the container is provided is configured to be detachable from a main body layer in which an electronic circuit board including the control unit is configured. apparatus.   The portable information terminal device according to any one of claims 1 to 4, wherein the fluid is any one of a liquid, a granular material, and a powdery material.

Images