JP4771966B2 - Mobile terminal device - Google Patents

Description

  The present invention relates to a mobile terminal device such as a mobile phone.

  In recent years, an increasing number of cellular phones as portable terminal devices are controlled so that their functions are changed according to the open / closed state, the orientation of the display unit, and the like. Some mobile phones whose functions are controlled by such an open / close state or the like detect the open / close state by a magnet and a magnetic sensor.

For example, in a so-called two-axis hinge type mobile phone, two magnetic sensors are arranged on each side in the width direction of the operation unit side body, and one magnet is arranged on one end side in the width direction of the display unit side body. In addition, a state detection means for detecting the closed state by detecting the magnetic force with a magnetic sensor and detecting the front and back state of the display unit side housing depending on which magnetic sensor has detected the magnetic force has been proposed (for example, Patent Literatures). 1).
JP 2005-286610 A

  Here, since the state detection means of the mobile phone in Patent Document 1 has a structure that detects the open / closed state and the front / back state by detecting the magnetic force generated from one magnet, the magnetic force generated from one magnet is displayed on the display unit side. It is necessary to arrange the magnet at the center in the thickness direction so that it can be detected on both sides of the housing. For this reason, there are restrictions on the layout of the mobile phone.

  In addition, since the two magnetic sensors are arranged on the operation unit side housing side having the main circuit board, restrictions on the layout of the main circuit board become large.

  On the other hand, a configuration in which the magnetic sensor is arranged in the display unit side housing having the LCD substrate is also conceivable, but in this case, a signal line for transmitting a signal from the magnetic sensor to the main circuit substrate is separately provided. Since it needs to be disposed, the structure becomes complicated.

  The present invention provides a portable terminal device having a state detection means with few layout restrictions by arranging one magnetic sensor in a casing having an operation unit and arranging two magnets in a casing having a display unit. The purpose is to provide.

  A mobile terminal device of the present invention includes a first housing having an operation unit, a second housing having a display unit, a connecting member that connects the first housing and the second housing so as to be openable and closable, A pivot member that pivots the second casing relative to the first casing so as to be able to switch between front and back, an open / closed state of the first casing and the second casing, and the second casing in the closed state. A state detection means for detecting a front and back state of the body, wherein the state detection means includes one magnetic sensor disposed on one end side in the width direction of the first housing; And two magnets disposed on both ends in the width direction of the second casing.

  The one magnetic sensor and the two magnets are disposed at corresponding positions in the longitudinal direction of the two casings in the closed state in which the first casing and the second casing overlap each other. .

  In addition, a microphone is disposed on the first outer end side of the first casing opposite to the connecting portion in the longitudinal direction, and the microphone is disposed on the opposite side of the connecting portion in the longitudinal direction of the second casing. On the second outer end side, a receiver is disposed, the magnetic sensor is disposed at a substantially center in the longitudinal direction of the first housing, and each of the two magnets is disposed in the second housing. It is preferable that it is arranged at the approximate center in the longitudinal direction.

  In the open state, the first inner end side of the first casing on the connecting portion side in the longitudinal direction or the second inner end portion side of the second casing on the connecting portion side in the longitudinal direction. It is preferable that a camera is provided.

  In the state where the magnetic force is detected by the magnetic sensor, one of the two magnets generates an N-pole magnetic force with respect to the magnetic sensor, and the other magnet has an S-pole with respect to the magnetic sensor. Preferably, the magnetic sensor emits a magnetic force, and the magnetic sensor is configured to be able to discriminate both the magnetic force of the N pole and the magnetic force of the S pole.

  According to the present invention, a portable terminal having a state detection unit with few layout restrictions by disposing one magnetic sensor in a casing including an operation unit and disposing two magnets in the casing including a display unit. An apparatus can be provided.

  The best mode for carrying out the present invention will be described below with reference to the drawings. In the following, a mobile phone will be described as a mobile terminal device, but the present invention is not limited to this, and may be a PHS (Personal Handy Phone System), a PDA (Personal Digital Assistant), a portable navigation device, a laptop computer, or the like. There may be.

  The basic structure of the mobile phone 1 as a mobile terminal device will be described with reference to FIGS. FIG. 1 shows a front view of a mobile phone 1 as a mobile terminal device in an open state (first open state). 2A shows a left side view when the mobile phone 1 is opened, and FIG. 2B shows a right side view when the mobile phone 1 is opened. FIG. 3 shows a rear view in a state where the mobile phone 1 is opened.

  The mobile phone 1 includes an operation unit side body 2 and a display unit side body 3. The operation unit side body 2 and the display unit side body 3 are connected to each other via a connection unit 4 having a biaxial hinge mechanism, and the mobile phone 1 can be deformed into an open state and a closed state. In each closed state, the display unit side body 3 can be switched between a front state and a back state.

  Here, the closed state is a state in which both housings are arranged so as to overlap each other, and the open state is a state in which both housings are arranged so as not to overlap each other. In the open state, the display 30 disposed on the surface 3A of the display unit side body 3 described later and the operation key group 11 disposed on the surface 2A of the operation unit side body 2 are on the same side. The display 30 in the display unit side body 3 and the operation key group 11 in the operation unit side body 2 are opposite to the back state in the open state (see FIG. 1). The state (refer FIG. 7) arrange | positioned so that it may face. The front state in the closed state is a state in which the display 30 in the display unit side body 3 is arranged so as to face the operation key group 11 in the operation unit side body 2 (see FIG. 5). The back state in is a state in which the display 30 in the display unit side body 3 is exposed without facing the operation key group 11 in the operation unit side body 2 (see FIG. 8).

  The outer surface of the operation unit side body 2 includes a front case 2a and a rear case 2b. The operation unit side body 2 exposes, on the front case 2a side, an operation key group 11 and a voice input unit 12 as a microphone to which a voice uttered by a user of the mobile phone 1 is input. Configured. Here, the operation key group 11 includes a function setting operation key 13 for operating various functions such as various settings, a telephone book function, and a mail function, and a numeric keypad for inputting numbers such as telephone numbers and characters such as mail. Input operation keys 14 and the like, and a determination operation key 15 for performing determinations in various operations, scrolling in the vertical and horizontal directions, and the like. The voice input unit 12 is disposed on the outer end side opposite to the connection unit 4 side in the longitudinal direction of the operation unit side body 2. That is, the voice input unit 12 is arranged on one outer end side when the mobile phone 1 is in the open state.

  Each key constituting the operation key group 11 is predetermined according to a deformed state such as an open / close state or a front / back state of the operation unit side body 2 and the display unit side body 3 and the type of application being activated. Function is assigned (key assignment). In the mobile phone 1, when each key constituting the operation key group 11 is pressed by the user, an operation corresponding to the function assigned to each key is executed.

  As shown in FIG. 2A, on one side surface of the operation unit side body 2, an interface 16 for transmitting / receiving data to / from an external device (for example, a host device), a headphone / microphone terminal 17, A removable external memory interface 18 and a charging terminal 19 for charging the battery are provided. The interface 16, the headphone terminal / microphone terminal 17, and the interface 18 are covered with a dust-proof cap that can be attached and detached when not in use.

  On the other side of the operation unit side body 2, as shown in FIG. 2B, a pair of side keys 20, an operation key 21 used at the time of imaging, and a broadcast wave whose radio wave reception angle can be adjusted. A receiving antenna 22 is arranged. A predetermined function is assigned to the side key 20 in accordance with a deformed state such as an open / close state and a front / back state of the operation unit side body 2 and the display unit side body 3 and the type of the activated application ( Key assignment). Here, similarly to the above, when the side key 20 is pressed by the user, an operation corresponding to the function assigned to the side key 20 in the mobile phone 1 is executed.

  As shown in FIG. 3, a camera unit 23 that captures an image of a subject and a light unit 24 that irradiates the subject with light are disposed in the rear case 2 b of the operation unit side body 2. The camera unit 23 and the light unit 24 are arranged on the inner end side on the connection unit 4 side in the operation unit side body 2. Further, the rear case 2b in the operation unit side body 2 is formed with an opening 92a for mounting the battery 90 in the battery housing portion 92, and the battery lid 25 is disposed so as to close the opening 92a.

  Moreover, the upper end part of the operation part side housing | casing 2 and the lower end part of the display part side housing | casing 3 are connected via the connection part 4 provided with a biaxial hinge mechanism, as shown in FIGS. As shown in FIG. 3, the sub operation key group 33 is arranged in a line in the width direction (short direction) of the mobile phone 1 on one surface (back surface) of the connecting portion 4. Each of the keys constituting the sub operation key group 33 depends on a deformed state such as an open / closed state or a front / back state of the operation unit side body 2 and the display unit side body 3 and the type of application being activated. A predetermined function is assigned (key assignment). In the mobile phone 1, when each key constituting the operation key group 11 is pressed by the user, an operation corresponding to the function assigned to each key is executed.

  The outer surface of the display unit side body 3 includes a front case 3a and a rear case 3b. The front case 3a in the display unit side body 3 is arranged so as to expose a display 30 having a predetermined shape for displaying various information and a sound output unit 31 as a receiver for outputting sound on the other party side of the call. Is done. Here, the audio output unit 31 is disposed on the outer end side opposite to the connection unit 4 in the longitudinal direction of the display unit side body 3. That is, the audio output unit 31 is arranged on the other end side when the mobile phone 1 is in the open state.

  In addition, a sub display 32 for displaying various types of information is exposed in the rear case 3 b of the display unit side body 3. Each of the display 30 and the sub-display 32 includes a liquid crystal panel, a drive circuit that drives the liquid crystal panel, and a light source unit such as a backlight that emits light from the back side of the liquid crystal panel.

  Here, the mobile phone 1 includes state detection means for detecting the open / closed state and the front / back state of the mobile phone 1 in the closed state. The state detection means includes one hall element 6 as a magnetic sensor disposed in the operation unit side housing 2 as the first housing, and two pieces disposed in the display unit side housing 3 as the second housing. It is comprised by the magnets 7a and 7b. The Hall element 6 detects both the magnetic force of the S pole and the magnetic force of the N pole, and detects the magnitude of the magnetic force.

  The hall element 6 and the two magnets 7a and 7b are arranged so as to be separated from each other in the open state, and so that the hall element 6 and one magnet overlap in the thickness direction of the housing in the closed state. The hall element 6 detects the open / closed state and the closed / closed state of the mobile phone 1 based on the direction of magnetic force (S pole or N pole) emitted from the magnets 7a and 7b and the magnitude of the magnetic force.

  Next, the structure of the connecting portion 4 and the deformed state of the mobile phone 1 will be described with reference to FIGS. FIG. 4 is a perspective view of the cellular phone 1 in the opened state (first opened state). FIG. 5 illustrates a state in which the display unit side body 3 and the operation unit side body 2 of the mobile phone 1 are closed and rotated around the opening / closing axis X of the connecting unit 4 from the state illustrated in FIG. FIG. FIG. 6 is a perspective view showing a state where the display unit side body 3 of the mobile phone 1 is rotated by a predetermined angle around the rotation axis Y of the connecting unit 4 from the state shown in FIG. 7 shows a state in which the display unit side body 3 of the mobile phone 1 is rotated by 180 ° from the state shown in FIG. 4 around the rotation axis Y of the connecting unit 4 (turned state, second open state). FIG. FIG. 8 shows a state in which the display unit side body 3 of the mobile phone 1 is closed and rotated around the opening / closing axis X of the connecting unit 4 from the state shown in FIG. 7 (turn closed state, second closed state). FIG.

  The connection unit 4 connects the operation unit side body 2 and the display unit side body 3 so that the operation unit side body 2 and the display unit side body 3 can be opened and closed at an arbitrary angle around the opening / closing axis X, and at an arbitrary angle around the rotation axis Y. A biaxial hinge mechanism that is pivotably connected is provided.

  The connecting portion 4 is connected to the upper end portion of the operation unit side body 2 by an open / close connecting member (not shown) on one end 4a side, and is connected to the upper end portion of the display unit side case 3 by a rotating connecting member (not shown) on the other end 4b side. It is connected to the lower end.

  A convex opening / closing part 4 c is formed at one end 4 a of the connecting part 4 so as to protrude vertically from the surface of the connecting part 4. A concave cutout portion 5 into which the convex opening / closing portion 4c is inserted is formed at the upper end portion of the operation unit side body 2.

  A hole A (not shown) is formed on each side of the opening / closing portion 4c in the opening / closing axis X direction. Moreover, a hole B (not shown) is formed on both inner side surfaces of the notch portion 5 of the operation unit side body 2. Then, in a state where the convex opening / closing part 4c is inserted into the concave cutout part 5, the hole A and the hole B are disposed so as to face each other in close proximity, and the hole A A cylindrical opening / closing connecting member is inserted through both of the holes B. Thereby, the operation unit side body 2 and the display unit side body 3 are connected so as to be openable and closable. The opening / closing part 4c is not particularly limited to a convex shape as long as the opening / closing part 4c is inserted into the upper end part of the operation unit side body 2, and the shape of the upper end part of the operation unit side body 2 is also concave. Not limited to.

  Moreover, the other end 4b side of the connection part 4 and the lower end part of the display part side housing | casing 3 are rotatably connected by the rotation connection member which is not shown in figure. A hole C (not shown) is formed on the side surface of the connecting unit 4 on the display unit side body 3 side. A hole D (not shown) is formed on the side surface of the display unit side body 3 on the connection unit 4 side. Then, the rotation connecting member is inserted into both the hole C and the hole D, so that the operation unit side body 2 and the display unit side body 3 can rotate about the rotation axis Y. Connected. That is, the operation unit side body 2 and the display unit side body 3 are connected so that the front and back states of the display unit side body 3 can be switched.

  As described above, in the mobile phone 1, the operation unit side body 2 and the display unit side body 3 are connected by the connection unit 4 so as to be opened and closed and rotated. As a result, the mobile phone 1 is opened or closed by opening and closing the operation unit side body 2 and the display unit side body 3 about the opening / closing axis X, or rotating about the rotation axis Y. It can be transformed into various states.

  For example, the mobile phone 1 in the closed state (first closed state) in which the operation unit side body 2 and the display unit side body 3 overlap each other as illustrated in FIG. The end of the casing 3 opposite to the opening / closing axis X is deformed so as to open around the opening / closing axis X so as to be separated from each other, thereby displaying the operation unit-side casing 2 and the display shown in FIGS. It can be made into the open state (1st open state) where the part side housing | casing 3 does not mutually overlap.

  Conversely, the mobile phone 1 in the open state (first open state) shown in FIGS. 1 to 4 has an end portion on the opposite side to the opening / closing axis X of the operation unit side body 2 and the display unit side body 3. It can be set to the closed state (first closed state) shown in FIG. 5 by deforming it so that it closes around the opening / closing axis X so as to approach each other.

  Further, in the open state (first open state) shown in FIGS. 1 to 4, the display unit side body 3 can be rotated around the rotation axis Y as shown in FIG. 6. Furthermore, the front and back states of the display unit side body 3 can be switched by further rotating the display unit side body 3 from the state of FIG. Specifically, the display 30 disposed on the surface 3A of the display unit side body 3 shown in FIGS. 1 to 4 and the operation key group 11 disposed on the surface 2A of the operation unit side body 2 are on the same side. The display unit side body 3 is rotated by 180 degrees about the rotation axis Y from the open state (first open state) facing the screen, so that the surface of the display unit side body 3 as shown in FIG. The display 30 arranged in 3A and the operation key group arranged on the surface 2A of the operation unit side body 2 can be in an open state (second open state) in which they face the opposite side.

  Then, by deforming the display unit side body 3 in the state shown in FIG. 7 (second open state) so as to close around the opening / closing axis X, the mobile phone 1 is closed (second closed state) shown in FIG. ). In other words, the mobile phone 1 is in a closed state (first closed state) in which the display 30 in the display unit side body 3 shown in FIG. 5 is arranged to face the operation key group 11 in the operation unit side body 2. The display 30 in the display unit side body 3 shown in FIG. 8 can be transformed into a closed state (second closed state, turn-closed state) that is exposed without facing the operation unit side body 2. .

  In the present embodiment, the cellular phone 1 that can be folded by the connecting portion 4 is described. However, the cellular phone 1 is not foldable, and the operation unit side body 2 and the display unit side body 3 are overlapped. A rotation (revolver) type in which one casing is rotated about an axis along the alignment direction may be used, and the display unit side casing 3 can be slid in the casing lengthwise direction with respect to the operation unit side casing 2. It may be a sliding type.

  Next, the internal structure of the operation unit side body 2 and the display unit side body 3 will be described with reference to FIGS. 9 and 10. FIG. 9 is an exploded perspective view of the operation unit side body 2. FIG. 10 is an exploded perspective view of the display unit side body 3.

  As shown in FIG. 9, the operation unit side body 2 includes a front case 2a, a key sheet 40 that constitutes the operation key group 11 described above, a flexible printed wiring board 50 on which key switches are arranged, and a shield case 60. A circuit board 70 including various electronic components such as a reference potential pattern layer and an RF (Radio Frequency) module for a mobile phone, an antenna unit 80, and a rear case 2b. The battery 90 is accommodated so as to be removable from the outside of the rear case 2b.

  The front case 2a and the rear case 2b are arranged so that their concave inner surfaces face each other, and are joined so that their outer peripheral edges overlap. Between the front case 2a and the rear case 2b, the key sheet 40, the flexible printed wiring board 50, the shield case 60, the circuit board 70, and the antenna unit 80 are arranged in this order from the front case 2a side. It is stored and arranged.

Various electronic components and a reference potential pattern layer (not shown) are formed on the first surface 72 of the circuit board 70. Various electronic components are arranged on the second surface 73 of the circuit board 70. Specifically, on the second surface 73, the camera unit 23 and the light unit 24 (not shown) are arranged so as to be biased toward the end on the connection unit 4 side, and the audio input unit 12 (not shown) is connected to the connection unit 4 side . It is biased and arranged at the opposite end. The camera unit 23 and the light unit 24 are exposed to the outside through a perforated part 2c that is perforated in a predetermined shape in the rear case 2b.

  The shield case 60 is a metal member having a shape in which one wide surface of a thin rectangular parallelepiped is opened. The shield case 60 includes a flat plate portion 42 and ribs 44 formed substantially perpendicular to one surface of the flat plate portion 42. The rib 44 is formed to be equal to or sufficiently higher than the height of the electronic component having the highest height among the various electronic components mounted on the first surface 72 of the circuit board 70. The shield case 60 may be formed of a skeleton made of resin and a metallic conductor film formed on the surface thereof, in addition to being formed of metal.

  Here, the ribs 44 are formed on the periphery and inside of the flat plate portion 42 so as to correspond to the above-described reference potential pattern layer. Specifically, when the first surface 72 on which the reference potential pattern layer is formed and the back surface on which the rib 44 is formed in the shield case 60 are arranged to face each other, the bottom surface of the rib 44 is arranged. Are arranged on the reference potential pattern layer.

  The shield case 60 is electrically connected to the reference potential pattern layer formed on the first surface 72 of the circuit board 70 by the rib 44 (bottom surface). As a result, the shield case 60 is electrically connected to the reference potential pattern layer and has the same potential. Further, the shield case 60 prevents external noise from acting on various electronic components (not shown) disposed on the first surface 72 of the circuit board 70, and the high-frequency circuit formed on the first surface 72. Absorbs noise emitted from etc. Here, electrical conduction may be achieved by disposing a conductive member (not shown) disposed between the shield case 60 and the circuit board 70. The shield case 60 also functions as a reinforcing member for securing rigidity against pressing operations of various keys described later.

  The flexible printed wiring board 50 has a plurality of key switches 51, 52, 53 on the surface on the front case 2a side. The key switches 51, 52, 53 of the flexible printed wiring board 50 have a structure having a metal dome of a metal plate that is curved in a bowl shape and is three-dimensionally formed. When the apex of the bowl-shaped shape is pressed, the metal dome comes into contact with a switch terminal formed in an electric circuit (not shown) printed on the surface of the flexible printed wiring board 50 and is electrically connected. Note that the flexible printed wiring board 50 is obtained by sandwiching wiring between a plurality of insulating films.

  In addition, on the surface of the flexible printed wiring board 50 on the front case 2a side, one Hall element 6 constituting the state detecting means is arranged. The hall element 6 is disposed at the approximate center in the longitudinal direction at the outer edge in the width direction of the flexible printed wiring board 50.

  The key sheet 40 is configured by attaching the operation key group 11 to the surface of a silicon rubber sheet 41 with an adhesive. The function setting operation key 13, the input operation key 14, and the determination operation key 15 constituting the operation key group 11 in the key sheet 40 are disposed at positions facing the key switches 51, 52, 53 on the flexible printed circuit board 50. These are disposed so as to be exposed from a key hole 45 formed in the front case 2a described later.

  A plurality of key holes 45 are formed on the inner surface of the front case 2a facing the display 30 of the display unit side body 3 in a state in which the cellular phone 1 is folded. From each of the plurality of key holes 45, the pressing surfaces of the function setting operation key 13, the input operation key 14, and the determination operation key 15 formed on the key sheet 40 are exposed. By pressing the function setting operation key 13, the input operation key 14, and the determination operation key 15 constituting the exposed operation key group 11 so as to press down, the metal dome in each of the corresponding key switches 51, 52, 53 is provided. The apex of (saddle-like shape) is pressed and comes into electrical contact with the switch terminal.

  The antenna unit 80 is configured by arranging an antenna element having a predetermined shape on a base. The antenna unit 80 is disposed on the end side opposite to the connection unit 4 side in the mobile phone 1. The antenna element of the antenna unit 80 is formed of a strip-shaped sheet metal. The antenna unit 80 is supplied with power from the circuit board 70 via a power supply terminal (not shown). As a result, the antenna element is fed from the circuit board 70 via the feed terminal and is connected to the RF module and the like of the circuit board 70.

  The battery 90 is detachably accommodated in the battery accommodating portion 92 through an opening 92a formed in the rear case 2b. The battery housing portion 92 is formed by the rear case 2 b and a part of the second surface 73 of the circuit board 70. Then, in a state where the battery 90 is accommodated, the battery lid 25 is disposed so as to close the opening 92a, so that the battery 90 can be prevented from falling off.

  As shown in FIG. 10, the display unit side body 3 is a circuit board including a front case 3a, a display unit 100, an internal frame 110 made of a metal member, a reference potential pattern layer, and display electronic components. 120, a sub display unit 130, and a rear case 3b.

  The front case 3a and the rear case 3b are arranged so that their concave inner surfaces face each other, and are joined so that their outer peripheral edges overlap. Further, between the front case 3a and the rear case 3b, the display unit 100, the internal frame 110, the circuit board 120, and the sub display unit 130 are accommodated and arranged in this order from the front case 3a side.

  The front case 3a is formed by fixing the LCD cover 300b and the front cover 300c on the surface of the case body 300a. Here, ribs 35 and 36 are formed on both outer edges on the outer side in the width direction of the front case 3a. And the magnet 7a is arrange | positioned so that the recessed part 35a formed in the rib 35 may be fitted. Moreover, the magnet 7b is arrange | positioned so that it may fit in the recessed part 36a formed in the rib 36. FIG. Each of the two magnets 7 a and 7 b is disposed so that the same magnetic pole faces the same side in the thickness direction of the display unit side body 3. For example, each of the two magnets 7a and 7b is arranged such that the south pole of each of the two magnets 7a and 7b faces the surface 3A side.

  The display unit 100 includes a display 30 and a holder that fixes the display 30.

  The inner frame 110 is a member having an H-shaped cross section, and shallow concave accommodating portions are formed on the front case 3a side and the rear case 3b side. The display unit 100 is accommodated and disposed on the front case 3a side of the internal frame 110, and the circuit board 120 is accommodated and disposed on the rear case 3b side. Here, the internal frame 110 functions as a reinforcing member for securing rigidity with respect to the bending operation and the twisting operation in the display unit side body 3 and a shield for electrostatic countermeasures.

  The circuit board 120 is accommodated and arranged on the rear case 3b side of the internal frame 110 as described above. Various electronic components (not shown) are arranged on the rear case 3b side of the circuit board 120. The audio output unit 31 described above is disposed on the outer end side opposite to the connection unit 4 in the circuit board 120. In addition, various electronic components form circuit blocks such as a display control block that performs display control of the display mode and timing of the display 30 and the sub-display 32 by a predetermined combination.

  A reference potential pattern layer (not shown) is formed on the circuit board 120 on the front case 3a side. A conducting member is disposed between a predetermined position on the reference potential pattern layer and a predetermined position on the surface facing the internal frame 110. Thereby, the reference potential pattern layer in the circuit board 120 and the internal frame 110 are electrically connected.

  The sub display unit 130 includes a sub display 32 and a holder for fixing the sub display 32. The sub display unit 130 is disposed so as to be sandwiched between the rear case 3 b and the circuit board 120. That is, the sub display unit 130 presses the circuit board 120 against the inner frame 110 side by a force applied by being sandwiched between the front case 3a and the rear case 3b.

  Moreover, the sub display unit 130 is arrange | positioned so that it may expose from the window part 3c formed in the rear case 3b as mentioned above.

  Here, an aspect in which the state detecting means detects the front / back state in the open / closed state and the closed state of the mobile phone 1 will be described below. First, an aspect in which the Hall element 6 detects and determines the front / back state in the closed state according to the direction of the magnetic force will be described.

  As an initial setting, when the Hall element 6 cannot detect a magnetic force of a predetermined value or more, the mobile phone 1 is determined to be in an open state, and when a magnetic force of a predetermined value or more is detected, the mobile phone 1 is closed. It is set so as to be determined to be. Furthermore, when the Hall element 6 detects the magnetic force from the S pole, which is one of the magnetic poles, it is determined that the mobile phone 1 is in the front state (first closed state, closed state) in the closed state, and the other When the magnetic force from the N pole, which is a magnetic pole, is detected, the mobile phone 1 is set to be determined to be in the back state in the closed state (second closed state, turn-closed state).

  First, when the mobile phone 1 is in the state shown in FIG. 5, the Hall element 6 and the magnet 7a are arranged close to each other so as to overlap each other in the thickness direction of the casing. A magnetic force greater than or equal to a predetermined value from the south pole emitted from is detected. Thereby, the mobile phone 1 is determined to be in the front state (first closed state) in the closed state.

  Next, when the cellular phone 1 is deformed from the state shown in FIG. 5 to the state shown in FIG. 1, the magnet 7a and the hall element 6 that are arranged close to each other are separated from each other. Cannot be detected. Thereby, it is determined that the mobile phone 1 is in the open state.

  Subsequently, when the cellular phone 1 is deformed from the state shown in FIG. 1 to the state shown in FIG. 7 by rotating the display unit side body 3 about the rotation axis Y as shown in FIG. During the deformation from the state 1 to the state shown in FIG. 7, the Hall element 6 is separated from the magnets 7a and 7b, so that the magnetic force generated from the magnets 7a and 7b cannot be detected. Thereby, it is determined that the mobile phone 1 remains open.

  When the cellular phone 1 is deformed from the state shown in FIG. 7 to the state shown in FIG. 8 with the display unit side body 3 being closed around the opening / closing axis X, the Hall element 6 and the magnet 7b are mutually enclosed. Since they are arranged close to each other so as to overlap in the body thickness direction, the Hall element 6 detects a magnetic force greater than a predetermined value from the N pole emitted from the magnet 7b. Thereby, it is determined that the mobile phone 1 is in the back state (second closed state) in the closed state.

  As described above, the opening / closing state and the front / back state of the mobile phone 1 in the closed state can be detected by the Hall element 6 and the two magnets 7a and 7b as the state detecting means. Then, according to the detected open / closed state and front / back state in the closed state, it is possible to change the mode of characters and images displayed on the display 30 and to change the key assignment in the operation key group 11.

  Here, in this embodiment, when the magnetic force from the S pole is detected, it is set to be determined to be the front state in the closed state, and when the magnetic force from the N pole is detected, the back state is in the closed state. However, the present invention is not limited to this. In other words, when the magnets 7a and 7b are arranged so that the N and S poles are opposite to each other in this embodiment, when the magnetic force from the N pole is detected, it is determined that the surface is in the closed state. It may be set so that the closed state is determined when the magnetic force from the south pole is detected.

  Next, a mode in which the Hall element 6 detects and determines the front / back state in the closed state according to the strength of magnetic force (magnetic flux density) will be described.

  As an initial setting, when the Hall element 6 cannot detect a magnetic force equal to or higher than the first magnetic force having a predetermined strength, the mobile phone 1 is determined to be in an open state, and when a magnetic force equal to or higher than the first magnetic force is detected. Is set so that the mobile phone 1 is determined to be in the closed state. Further, when the Hall element 6 detects a magnetic force equal to or higher than the second magnetic force stronger than the first magnetic force, it is determined that the mobile phone 1 is in the closed state (first closed state, closed state), and the first When a magnetic force of 1 magnetic force or more and weaker than the second magnetic force is detected, it is determined that the back state in the closed state (second closed state, turn-closed state) is determined.

  First, when the mobile phone 1 is in the state shown in FIG. 5, the Hall element 6 and the magnet 7a are arranged close to each other so as to overlap each other in the thickness direction of the casing. A magnetic force greater than or equal to the second magnetic force generated is detected. Thereby, it is determined that the mobile phone 1 is in the front state (first closed state) in the closed state.

Next, when the cellular phone 1 is deformed so that the display unit side 3 housing is opened around the opening / closing axis X so as to change from the state shown in FIG. 5 to the state shown in FIG. since the element 6 is separated, the Hall element 6, first, will not be able to detect a second magnetic or magnetic force, to be et al., deformed to open around the opening and closing axis X of the display unit side body 3 and to no longer Deki detect the first magnetic force more of the magnetic force. Thereby, it is determined that the mobile phone 1 is in the open state.

  Subsequently, when the cellular phone 1 is deformed from the state shown in FIG. 1 to the state shown in FIG. 7 by rotating the display unit side body 3 about the rotation axis Y as shown in FIG. During the deformation from the state 1 to the state shown in FIG. 7, the Hall element 6 is separated from the magnets 7a and 7b, so that the magnetic force generated from the magnets 7a and 7b cannot be detected. Thereby, it is determined that the mobile phone 1 remains open.

  When the cellular phone 1 is deformed from the state shown in FIG. 7 to the state shown in FIG. 8 with the display unit side body 3 being closed around the opening / closing axis X, the Hall element 6 and the magnet 7b are mutually enclosed. The Hall element 6 detects a magnetic force that is equal to or greater than the first magnetic force. Thereby, it is determined that the mobile phone 1 is in the back state (second closed state) in the closed state. Here, since the magnet 7a and the magnet 7b are arranged so as to be biased toward the surface 3A side in the display unit side body 3, the distance between the Hall element 6 and the magnet 7b in the second closed state shown in FIG. It arrange | positions so that it may become longer than the distance of the Hall element 6 in the state in and the magnet 7a. That is, the Hall element 6 detects a magnetic force that is greater than or equal to the first magnetic force and weaker than the second magnetic force from the magnet 7b in the second closed state shown in FIG. Thereby, it is determined that the mobile phone 1 is in the back state (second closed state) in the closed state.

  As described above, the open / closed state and the closed / closed state of the mobile phone 1 can be detected by the single hall element 6 and the two magnets 7a and 7b serving as the state detecting means. Then, according to the detected open / closed state and front / back state in the closed state, it is possible to change the mode of characters and images displayed on the display 30 and to change the key assignment in the operation key group 11.

  Here, in the present embodiment, when the Hall element 6 detects a magnetic force greater than or equal to the second magnetic force that is stronger than the first magnetic force, the mobile phone 1 is determined to be in the surface state in the closed state, When a magnetic force that is greater than or equal to the first magnetic force and weaker than the second magnetic force is detected, it is determined that the back state is in the closed state, but the present invention is not limited to this. That is, when the magnets 7a and 7b are arranged so as to be biased toward the surface 3B side of the display unit side body 3, the Hall element 6 detects a magnetic force greater than the second magnetic force that is stronger than the first magnetic force. May be determined to determine that the mobile phone 1 is in the closed state when the mobile phone 1 is in the closed state and a magnetic force greater than or equal to the first magnetic force and weaker than the second magnetic force is detected. .

  Further, while the mobile phone 1 is deformed from the closed state (first closed state) shown in FIG. 5 to the open state (first open state) shown in FIG. Even when a magnetic force of two magnetic forces or less is detected, it can be set so that the mobile phone 1 is not determined to be in the second closed state. Specifically, after the Hall element 6 detects a magnetic force greater than or equal to the second magnetic force and it is determined that the mobile phone 1 is in the first closed state, the Hall element 6 continues to be greater than or equal to the first magnetic force and When a magnetic force weaker than two magnetic forces is detected, the mobile phone 1 can be set not to be determined as being in the second closed state. By setting in this way, the cellular phone 1 is deformed from the first closed state to the first opened state, in other words, while the cellular phone 1 is being opened, the characters and images displayed on the display unit side body 3 are displayed on the display 30. It can suppress that the key assignment in the aspect and the operation key group 11 is changed. In this case, if the Hall element 6 detects a magnetic force greater than or equal to the second magnetic force, then the first closed state may be determined until no magnetic force greater than or equal to the first magnetic force is detected. As described above, according to the open / closed state and the front / back state in the closed state detected by the state detecting means, the mode of characters and images displayed on the display 30 is changed, and the key assignment in the operation key group 11 is changed. Can be made. For example, depending on the detected open / closed state and the front and back state in the closed state, the display on the display 30 is turned off in the first closed state (closed state) shown in FIG. The display can be turned on. Further, when the display direction when displaying an image on the display 30 is the first open state shown in FIGS. 1 to 4 and the second open state (turned state) shown in FIG. The external terminal portion (upper side in FIGS. 1 and 7) opposite to the connecting portion 4 in the longitudinal direction is displayed as the upper side of the screen, and in the second closed state shown in FIG. The inner end side (upper side in FIG. 8) on the connecting part 4 side may be displayed on the upper side of the screen. Further, as in the above-described embodiment, the front / back state in the open / closed state and the closed state is determined according to the strength of the magnetic force detected by the Hall element 6. In the first closed state (closed state) shown in FIG. When the display on the display 30 is sometimes turned off and the display on the display 30 is turned on in other states, the Hall element 6 detects a magnetic force greater than the second magnetic force that is stronger than the first magnetic force. If it is determined that it is in the first closed state (closed state shown in FIG. 5), and a magnetic force greater than or equal to the first magnetic force and weaker than the second magnetic force is detected, the second closed state (turn shown in FIG. 8). It is preferably configured to determine that it is in the closed state. In this case, the first closed state can be reliably determined by detecting the magnetic force equal to or greater than the second magnetic force, and the display on the display 30 in the first closed state can be reliably turned off, thereby reducing power consumption. .

  According to the present embodiment, a single Hall element 6 is arranged in the operation unit side body 2 and two magnets 7a and 7b are arranged in the display unit side body 3, thereby detecting a state with less layout restrictions. A mobile phone 1 having means can be provided. In addition, the mobile phone 1 can be reduced in thickness and size.

  Further, since the Hall element 6 is disposed on the operation unit side body 2, the Hall element 6 is disposed on the circuit board. However, in the present embodiment, since there is one Hall element 6, layout restrictions on the circuit board are minimized. Can be.

  In addition, since the hall element 6 is disposed in the operation unit side body 2 that houses the circuit board 70 that is the main board, there is no need to separately provide wiring for transmitting a signal from the hall element 6. The complexity of the structure can be suppressed.

  Moreover, the mobile phone 1 can be miniaturized by arranging each of the two magnets 7a and 7b so as to fit into the recess 35a formed in the front case 3a and efficiently utilizing the space.

  Further, since the two magnets 7a and 7b are arranged apart from components (receiver and camera) that generate magnetic force, erroneous detection in the state detection of the mobile phone 1 can be suppressed, or the magnets 7a and 7b and the Hall element 6 can be suppressed. Can be prevented from affecting these parts.

  As mentioned above, although preferred embodiment of this form was described, this invention can be implemented with a various form, without being limited to embodiment mentioned above. For example, in the present embodiment, the Hall element 6 is used as the magnetic sensor, but the present invention is not limited to this, and any configuration may be used as long as the magnetic force generated by the magnet can be detected.

  In the present embodiment, the Hall element 6 and the magnets 7a and 7b are arranged at substantially the center in the longitudinal direction of each of the operation unit side body 2 and the display unit side body 3; It can be arranged at a predetermined position away from other components that generate the.

  In the present embodiment, each of the two magnets 7a and 7b is arranged to be biased toward the same surface side in the display unit side body 3. However, the present invention is not limited to this, and the two magnets 7a and 7b may be arranged at the center in the thickness direction. Of course, they may be biased to different surface sides. Thereby, it can be set as the structure which can detect magnetic force suitably irrespective of the thickness of the display part side housing | casing 3. FIG. Moreover, since a thin magnet can be used as the two magnets 7a and 7b, the thickness of the mobile phone 1 can be reduced.

  In the present embodiment, the Hall element 6 is disposed on the flexible printed circuit board 50. However, the present invention is not limited to this, and the Hall element 6 may be disposed on the circuit board 70 that is the main board. It may be arranged close to the circuit board 70 inside.

  In the present embodiment, the two magnets 7a and 7b are arranged so as to be biased toward the same surface side in the display unit side body 3, so that the strength of the magnetic force detected by the Hall element 6 is different. However, the present invention is not limited to this, and magnets with different magnetic strengths may be used, or a shielding member that shields the magnetic force may be arranged so that the strength of the magnetic force detected by the Hall element 6 is different. Good.

  In the present embodiment, the camera unit 23 and the light unit 24 are disposed on the inner end side of the operation unit side body 2 on the connection unit 4 side. However, the present invention is not limited to this, and the display unit side body 3 may be disposed on the inner end side of the connecting portion 4 side.

The front view in the state (1st open state) which opened the mobile telephone 1 as a portable terminal device is shown. (A) The left view in the state which opened the mobile telephone 1 is shown, (B) The right view in the state which opened the mobile telephone 1 is shown. The rear view in the state which opened the mobile telephone 1 is shown. The perspective view in the state (first open state) which opened the mobile telephone 1 is shown. The top view of the display part side housing | casing 3 and the operation part side housing | casing 2 of the mobile telephone 1 closed and rotated centering on the opening-and-closing axis | shaft X of the connection part 4 is shown. The perspective view of the state which rotated the display part side housing | casing 3 of the mobile telephone 1 about the rotation axis Y of the connection part 4 by the predetermined angle is shown. The perspective view of the state (turn state, 2nd open state) which rotated the display part side housing | casing 3 of the mobile telephone 1 180 degrees centering | focusing on the rotation axis Y of the connection part 4 is shown. The perspective view of the state (turn closed state, the 2nd closed state) which closed and rotated the display part side housing | casing 3 of the mobile telephone 1 centering on the opening-and-closing axis | shaft X of the connection part 4 is shown. The disassembled perspective view of the operation part side housing | casing 2 is shown. The disassembled perspective view of the display part side housing | casing 3 is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mobile telephone 2 Operation part side housing | casing 3 Display part side housing | casing 4 Connection part 6 Hall element 7a Magnet 7b Magnet 11 Operation key group 30 Display

Claims (5)

A first housing including an operation unit;
A second housing including a display unit;
A connecting member that connects the first housing and the second housing so as to be openable and closable;
A rotating member for rotating the second housing with respect to the first housing so as to be front-back switchable;
A portable terminal device comprising: an open / closed state of the first housing and the second housing; and a state detecting means for detecting a front / back state of the second housing in the closed state,
The state detection means includes one magnetic sensor disposed on one end side in the width direction of the first casing and two magnets disposed on both end sides in the width direction of the second casing. The portable terminal device is configured to detect a front and back state of the second casing in the closed state according to the strength of the magnetic force detected by the magnetic sensor . 2. The mobile terminal device according to claim 1, wherein each of the two magnets is arranged to be biased toward one surface side in a thickness direction of the second casing. 2. The mobile terminal device according to claim 1, wherein each of the two magnets is different in strength of magnetic force and is biased to a different surface side in the thickness direction of the second casing. 2. The mobile terminal device according to claim 1, wherein each of the two magnets has a different magnetic strength and is arranged at a center in a thickness direction of the second casing. In a state where magnetic force is detected by the magnetic sensor,
In the two magnets, one magnet emits N-pole magnetic force to the magnetic sensor, and the other magnet emits S-pole magnetic force to the magnetic sensor,
5. The mobile terminal device according to claim 1, wherein the magnetic sensor is configured to be capable of discriminating both of the magnetic force of the N pole and the magnetic force of the S pole. .

Images