JP4185416B2 - Mobile terminal device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a mobile terminal device having two or more housings connected like a foldable mobile phone, and can be operated even in a dark place by having a light emitting unit that irradiates the operation unit. The present invention relates to a portable terminal device.
[0002]
[Prior art]
In a conventional portable terminal device, a light-transmitting member is used for each key of the operation unit so that the operation can be performed even in a dark place. In some cases, each key is irradiated from behind by arranging a light emitting element such as an LED (light emitting diode) at each position corresponding to each key. In addition, a light emitting element is also used for an incoming lamp for notifying that there has been an incoming communication.
[0003]
On the other hand, although not shown, it is a mobile terminal device in which two casings are rotatably connected by a hinge structure, and a main display unit such as an LCD (Liquid Crystal Display) provided for displaying information and images; Separately, by providing the sub display part inside the hinge structure, the display function of the sub display part has been enhanced by changing the display direction of the sub display part according to the pivoting movement to open and close the two cases. There was a thing (for example, refer to patent documents 1).
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 2001-308992
[Problems to be solved by the invention]
However, the conventional portable terminal device has a light emitting element arranged on the circuit board for each key of the operation unit, and also uses a light emitting element for an incoming lamp, etc., so the number of light emitting elements increases. Therefore, there was a problem that the reduction of the manufacturing cost was hindered.
[0006]
Moreover, although there existed what utilized the rotation operation | movement of two housing | casings for the enhancement of a display function like the said patent document 1, there was no thing which utilized the rotation operation | movement effectively in relation to the light emitting element. It was.
[0007]
Accordingly, in view of the above problems, the present invention has an object to provide a mobile terminal device that can reduce the number of light emitting elements and can effectively use the rotation of the casing in relation to the light emitting elements. It is what.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, the present invention
A mobile terminal device including a first housing having an operation unit and a second housing coupled so as to be able to be overlapped so as to cover the operation unit,
The second housing includes a light emitting unit that irradiates the operation unit when the first housing and the second housing are in an open state.
When the first casing and the second casing are closed, the light emitting unit is exposed to the outside, and the light emitting unit notifies an incoming call by lighting or blinking. Is.
[0009]
In addition, the mobile terminal device according to the present invention includes a first housing side connecting portion formed at one end of the first housing, and one of the second housings corresponding to the first housing side connecting portion. The second housing side connecting portion formed at the end of the wing can constitute a hinge structure and can be rotatably connected.
[0010]
The portable terminal device according to the present invention is
The light-emitting unit includes a light-emitting element and a light-transmitting diffusion plate.
The diffusion plate is attached to a window portion formed in the second housing side connection portion,
Flexible printed wiring in which the light emitting element connects the circuit board in the first housing and the circuit board in the second housing through the inside of the first housing side connecting portion and the second housing side connecting portion. When the flexible printed wiring board is incorporated on the board, it can be fixed at a position facing the diffusion board.
[0011]
The portable terminal device according to the present invention is
The flexible printed wiring board is spirally wound inside the first housing side connecting portion and the second housing side connecting portion,
A partition plate for limiting a circumferential movement amount of the light emitting element caused by a change in curvature of a spirally wound portion of the flexible print when the first housing and the second housing are rotated. Can be formed on the diffusion plate.
[0012]
In the portable terminal device according to the present invention, a reflective layer may be formed inside the partition plate.
[0014]
In the portable terminal device according to the present invention, when the light emitting unit is in a state where the first casing and the second casing are closed, an incoming call can be notified by lighting or blinking.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of a mobile terminal device according to the present invention will be described in detail with reference to the drawings.
[0016]
1 to 8 are diagrams which are referred to for explaining a foldable mobile phone 2 (corresponding to a mobile terminal device) according to the first embodiment of the present invention. As shown in FIG. 1, the foldable mobile phone 2 includes a first housing 6 having an operation unit 4 and a second housing 10 having a display unit 8.
[0017]
The one end portion 12 in the length direction of the first housing 6 and the one end portion 14 in the length direction of the second housing 10 corresponding thereto are connected to each other to form a hinge structure. The first housing side connecting portion 16 and the second housing side connecting portion 18 are formed so as to be rotatable by being configured.
[0018]
In other words, the first casing-side connecting portion 16 is formed by separating the three convex-shaped portions 20, 22, and 24 at a predetermined interval, and the second casing-side connecting portion 18 includes the first casing-side connecting portion 16. A projection 26 that fits between the convex portion 20 and the convex portion 22 and a projection 28 that fits between the convex portion 22 and the convex portion 24 are formed.
[0019]
And the 1st housing | casing side connection part 16 and the 2nd housing | casing side connection part 18 rotate so that the convex-shaped part 20 and the protrusion part 26, and the convex-shaped part 24 and the protrusion part 28 can mutually rotate. Pinned on the axis. The convex portion 22 of the first housing side connecting portion 16 and the protrusions 26 and 28 of the second housing side connecting portion 18 are not pin-coupled, and are respectively inside the first housing 6 and the second housing 10. Is communicated in the direction of the rotation axis (see FIG. 4).
[0020]
As shown in FIG. 1, the foldable mobile phone 2 rotates the second housing 10 from the open state (open state) where the operation unit 4 can be used, as shown in FIG. It can be made into the closed state (closed state or the overlapped state) which overlapped so that it may move and cover the operation part 4 of the 1st housing | casing 6. FIG.
[0021]
As shown in FIG. 1, the projecting portion 26 of the second housing side connecting portion 18 has the operation portion 4 of the first housing 6 when the first housing 6 and the second housing 10 are opened. A light emitting unit 30 that irradiates in the direction is provided. The light emitting unit 30 is controlled by a control unit 42 to be described later, and for a certain period of time when the first housing 6 and the second housing 10 are changed from the closed state to the open state, While the key is operated, the operation unit 4 is irradiated.
[0022]
Further, when the second housing 10 is turned with respect to the first housing 6 to be in the closed state, the irradiation direction of the light emitting unit 30 is also simultaneously turned. Therefore, as shown in FIG. Thus, the light emitting unit 30 can be confirmed. When there is an incoming communication when the first housing 6 and the second housing 10 are in the closed state, the light emitting unit 30 is turned on or blinked based on a control command from the control unit 42 And function as an incoming call lamp for notifying incoming calls.
[0023]
FIG. 3 is a block diagram showing a circuit configuration of the foldable mobile phone 2. The foldable mobile phone 2 includes a wireless unit 32, a storage unit 34, a speaker 36, a microphone 38, a light emitting unit 30, and a detection unit 40 in addition to the operation unit 4 and the display unit 8 that have already been described. It operates under the control of the unit 42. Here, the operation unit 4, the display unit 8, the wireless unit 32, the storage unit 34, the speaker 36, and the microphone 38 operate in the same manner as a conventional general mobile phone, and thus description thereof is omitted.
[0024]
Although not shown in FIGS. 1 and 2, the detection unit 40 detects whether the first housing 6 and the second housing 10 are in an open state or a closed state. As such a detection unit 40, for example, a conduction contact may be provided at a position corresponding to each other of the first housing 6 and the second housing 10, and detection may be performed by electrical conduction, or a mechanical switch may be used. You may make it provide.
[0025]
When the detection unit 40 detects that the folding mobile phone 2 has changed from the closed state to the open state, the control unit 42 receives a signal to that effect and causes the light emitting unit 30 to emit light for a certain period of time. When the communication is received while the detection unit 40 detects that the detection unit 40 is in the closed state, the control unit 42 causes the light emitting unit 30 to blink. Further, the light emitting unit 30 is caused to emit light when any operation by the operation unit 4 is started in the open state.
[0026]
As shown in FIG. 4, the light emitting unit 30 includes a light emitting element 44 such as an LED and a light diffusing plate 46, and the light emitting element 44 includes a circuit board 48 in the first housing 6 and a second one. The circuit board 50 in the housing 10 is fixed on a flexible printed wiring board 52 for circuit connection. Further, the diffusion plate 46 is formed so as to be exposed on the surface of the protruding portion 26 of the second housing side connecting portion 18 and is attached so as to close the window portion 54 leading to the internal space.
[0027]
As shown in FIG. 5, the flexible printed wiring board 52 has a substantially S-shaped outer shape when unfolded, and connectors 56 are provided at both ends in the length direction along the substantially S-shape. It is fixed. The light emitting element 44 is fixed at a predetermined position on the surface of the flexible printed wiring board 52 opposite to the surface to which the connector 56 is fixed.
[0028]
Since this flexible printed wiring board 52 is formed in a substantially S-shape, as shown in FIG. 6, the light emitting element 44 can be bent so as to face outward and can be wound in a spiral shape. For this reason, as shown in FIG. 4, it is possible to pass through the inside of the convex portion 22 of the first housing side connecting portion 16 and the inside of the protruding portion 26 of the second housing side connecting portion 18 that communicate with each other. Yes.
[0029]
In addition, the fixing position of the light emitting element 44 on the flexible printed wiring board 52 and the position of the window portion 54 formed on the protruding portion 26 of the second housing side connecting portion 18 for attaching the diffusion plate 46 correspond to each other. In the open state, the light is transmitted from the light emitting element 44 through the diffusion plate 46 and irradiates the operation unit 4 of the first housing 6.
[0030]
As shown in FIG. 4, the flexible printed wiring board 52 is in a state of being wound by only one turn when the first housing 6 and the second housing 10 are in an open state. As shown in FIG. 7, when the first housing 6 and the second housing 10 are closed, they are almost wound by one and a half turns. Therefore, when the first housing 6 and the second housing 10 are opened and closed, the radius of curvature of the portion of the flexible printed wiring board 52 wound in a spiral shape slightly changes. It moves slightly in the circumferential direction.
[0031]
Note that the distance A from the connector 56 to the light emitting element 44 on the flexible printed wiring board 52 in FIG. 5 and the distance B shown in FIG. 7 are substantially the same length. When the first housing 6 and the second housing 10 are changed from the open state as shown in FIG. 4 to the closed state as shown in FIG. 7, the light emitting element 44 is flexibly printed on the connector 56 on the circuit board 50 side. Since the light emitting element 44 is pulled through the wiring board 52, the relative position relationship between the light emitting element 44 and the diffusion plate 46 moves to approach the circuit board 50 side in the length direction of the flexible printed wiring board 52. Become.
[0032]
In order to prevent the light emitting element 44 from moving in the circumferential direction at the spirally wound portion of the flexible printed wiring board 52, the light emitting element 44 does not deviate from the position corresponding to the diffusion plate 46. As shown, a pair of partition plates 58 and 60 facing each other in the circumferential direction are integrally formed on the diffusion plate 46 to limit the amount of movement of the light emitting element 44 in the circumferential direction.
[0033]
Further, the light emitted from the light emitting element 44 is prevented from leaking into the second housing side connecting portion 18 and being emitted, and the light emitted to the outside of the second housing side connecting portion 18 has a diffusing action. Therefore, the diffusion plate 46 is integrally formed with a pair of light shielding plates 62 and 64 facing each other in a direction perpendicular to the partition plates 58 and 60, and the partition plate 58 and the partition plate 60 are opposed to each other. A reflective layer is formed by a metal vapor deposition method or the like on each of the inner side surfaces 66 and 68 and the inner side surfaces 70 and 72 of the light shielding plate 62 and the light shielding plate 64 facing each other.
[0034]
According to such a foldable mobile phone 2, each key of the operation unit 4 is not irradiated individually, but is irradiated as a whole, so that each key of the operation unit 4 is irradiated. The number of necessary light emitting elements can be reduced.
[0035]
Further, when the first housing 6 and the second housing 10 are rotated, the light emitting unit 30 functions as an illuminating device for the operation unit 4 when the first housing 6 and the second housing 10 are opened. Since the light emitting unit 30 is made to function, the rotating operation can be effectively used in relation to the light emitting unit 30 (light emitting element 44).
[0036]
Next, a turn-type mobile phone 80 (corresponding to a mobile terminal device) according to a second embodiment of the present invention will be described with reference to FIGS. In the turn type mobile phone 80 shown in this figure, the same parts as those of the folding type mobile phone 2 according to the first embodiment will be described with the same reference numerals, and overlapping description of the same configuration and operation will be given. Shall be omitted.
[0037]
As shown in FIG. 9, in the turn type mobile phone 80, the end portions of the first casing 6 including the operation unit 4 and the second casing 10 including the display unit 8 are operated in the first casing 6. It is connected so that it can mutually rotate around the connection axis | shaft 82 perpendicular | vertical to the surface where the part 4 is arrange | positioned.
[0038]
That is, the turn-type mobile phone 80 is shown in FIG. 10 by rotating the second housing 10 around the connecting shaft 82 by 180 ° with respect to the first housing 6 from the open state as shown in FIG. In this closed state, the display unit 8 can be left facing outward.
[0039]
Therefore, the user can always see the screen displayed on the display unit 8 even when the first housing 6 and the second housing 10 are both closed without being opened.
[0040]
In the turn type mobile phone 80, the diffusion plate 46 of the light emitting unit 30 is provided on the end surface 84 of the second housing 10 on the connecting shaft 82 side. Although not shown, the light emitting element 44 of the light emitting unit 30 is fixed inside the second housing 10 unlike the first embodiment.
[0041]
Such a turn-type mobile phone 80, like the foldable mobile phone 2 according to the first embodiment, has the operation unit 4 attached to the light emitting unit 30 when opened as shown in FIG. It can be made to irradiate. Further, as shown in FIG. 10, when the closed state is established, the light emitting unit 30 can function as an incoming call lamp.
[0042]
Therefore, according to such a turn type mobile phone 80, as in the case of the folding type mobile phone 2 according to the first embodiment, each key of the operation unit 4 is not individually irradiated, but is irradiated as a whole. Thus, the number of light emitting elements necessary for irradiating each key of the operation unit 4 can be reduced.
[0043]
Further, when the first housing 6 and the second housing 10 are rotated, the light emitting unit 30 functions as the illumination of the operation unit 4 when opened, and functions as an incoming call lamp when closed. Thus, since the light emitting unit 30 is made to exhibit a plurality of functions, the rotation operation can be effectively used in relation to the light emitting unit 30 (light emitting element 44).
[0044]
In the first and second embodiments, the case where the present invention is applied to the foldable mobile phone 2 and the turn-type mobile phone 80 has been described. However, at least one of the two housings is provided. Based on the same technical idea, the present invention can be applied to other mobile phones in which the operation unit is arranged in the mobile phone, or other mobile terminal devices such as PDA (Personal Digital Assistant). Needless to say, it can be done.
[0045]
In addition, by applying the present invention to the mobile terminal device, the number of light emitting elements arranged on the substrate for each key of the operation unit can be reduced, but the number of light emitting elements can be reduced. If the present invention is applied, the operability in a dark place or the like can be remarkably improved as compared with the conventional portable terminal device.
[0046]
【The invention's effect】
As described above, according to the portable terminal device of the present invention, each key of the operation unit is irradiated instead of individually irradiating each key of the operation unit. Therefore, the number of light-emitting elements necessary for the purpose can be reduced.
[0047]
In addition, by rotating the two connected casings, the light emitting unit functions as the illumination of the operation unit when opened, and as the incoming lamp when closed, Since the light emitting unit has a plurality of functions, the rotation operation can be effectively used in relation to the light emitting element.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an open state of a folding mobile phone 2 according to a first embodiment of the present invention.
FIG. 2 is a perspective view in a different direction showing a closed state of the folding mobile phone 2 shown in FIG. 1;
FIG. 3 is a block diagram showing a circuit configuration of the folding cellular phone 2 according to the first embodiment of the present invention.
4 is an enlarged cross-sectional view of the folding mobile phone 2 shown in FIG.
5 is a perspective view when the flexible printed wiring board 52 shown in FIG. 4 is developed. FIG.
6 is a perspective view when the flexible printed wiring board 52 shown in FIG. 5 is spirally wound. FIG.
7 is an enlarged cross-sectional view of the foldable mobile phone 2 shown in FIG.
8 is an enlarged perspective view of the diffusion plate 46 shown in FIG.
FIG. 9 is a perspective view showing an open state of a turn-type mobile phone 80 according to a second embodiment of the present invention.
10 is a perspective view in a different direction showing a closed state of the turn-type mobile phone 80 shown in FIG. 9. FIG.
[Explanation of symbols]
2 Folding type cellular phone 4 Operation unit 6 First housing 8 Display unit 10 Second housing 12, 14 End 16 First housing side connecting portion 18 Second housing side connecting portions 20, 22, 24 Convex shaped portion 26, 28 Projection part 30 Light emission part 32 Radio part 34 Storage part 36 Speaker 38 Microphone 40 Detection part 42 Control part 44 Light emitting element 46 Diffusion plate 48, 50 Circuit board 52 Flexible printed wiring board 54 Window part 56 Connector 58, 60 Partition plate 62, 64 Light-shielding plates 66, 68, 70, 72 Inner side surface 80 Turn type mobile phone 82 Connection shaft 84 End surface

Claims (5)

A mobile terminal device including a first housing having an operation unit and a second housing coupled so as to be able to be overlapped so as to cover the operation unit,
The second housing includes a light emitting unit that irradiates the operation unit when the first housing and the second housing are in an open state.
When the first casing and the second casing are closed, the light emitting unit is exposed to the outside, and the light emitting unit notifies an incoming call by lighting or blinking. Mobile terminal device. A first housing side connecting portion formed at one end of the first housing, and a second housing formed at one end of the second housing corresponding to the first housing side connecting portion. The portable terminal device according to claim 1 , wherein the body side connecting portion constitutes a hinge structure and is rotatably connected. The light-emitting unit includes a light-emitting element and a light-transmitting diffusion plate.
The diffusion plate is attached to a window portion formed in the second housing side connection portion,
Flexible printed wiring in which the light emitting element connects the circuit board in the first housing and the circuit board in the second housing through the inside of the first housing side connecting portion and the second housing side connecting portion. The portable terminal device according to claim 2 , wherein the portable terminal device is fixed to a position opposite to the diffusion plate when the flexible printed wiring board is incorporated on the board. The flexible printed wiring board is spirally wound inside the first housing side connecting portion and the second housing side connecting portion,
A partition plate for limiting a circumferential movement amount of the light emitting element caused by a change in curvature of a spirally wound portion of the flexible print when the first housing and the second housing are rotated. The mobile terminal device according to claim 3 , wherein the mobile terminal device is formed on the diffusion plate. The portable terminal device according to claim 4 , wherein a reflective layer is formed inside the partition plate.

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