CN1828778A - Wearable electronic device, manufacturing method of portable device, and portable device - Google Patents

Abstract

The device has a frame body ( 12 ) that has a substantial C-shape in cross section and is mounted on the body of a user, a strip-shaped display panel ( 22 ) disposed along the peripheral surface of the frame body ( 12 ), and a driver IC ( 15 ) for driving the display panel ( 22 ), wherein the display panel ( 22 ) and the driver IC are provided to different flexible substrates ( 21 A, 21 B), and the flexible substrates ( 21 A, 21 B) are disposed along the peripheral surface of the frame body ( 12 ) without being superposed on each other.

Description

Wearable electronic device, manufacturing method of portable device, and portable device

technical field

The present invention relates to a wearable electronic device that is worn on a user's arm and configured to display various information, a method for manufacturing a portable device, and a portable device, and particularly relates to an arm-worn portable device or a portable display device that is optimally configured The manufacturing technology of the instrument of the situation.

Background technique

Conventionally, arm-worn portable devices (electronic devices), such as watches and divers computers, are generally known as electronic devices that are worn on a user's arm or the like and have a display unit that displays various information. Most of these arm-worn portable devices are composed of a main body having a display unit and a belt connected to the main body. The belt part is made of metal or leather, and is configured to hold the main body on the arm.

On the other hand, a concept of a strap-shaped (bracelet-type) watch having a case structure bent along the arm, a main body, and a band integrated has been announced (for example, refer to Non-Patent Document 1, Patent Document 1, and Patent Document 2) . With such a structure, it is possible to design a watch that is very different from the conventional watch body and band, and it is epoch-making in that a large display area can be secured because the size of the body is not restricted like in the prior art. .

[Non-Patent Document 1] Seiko One Uotchi Co., Ltd. "Innovation of Wrist Timepiece Display Technology Electronic Ink Technology Utilization" [onlune] March 2017, Internet [retrieved on June 24, 2017] <URL: http://www.seiko-watch.co.jp/press/baseworld/prd_2005/04.html>

[Patent Document 1] Japanese Patent Laid-Open No. 2000-209319

[Patent Document 2] Japanese Utility Model Registration No. 3096593

However, in the above-mentioned watch-type electronic device or bracelet-type electronic device, there is a problem that the thickness of the display portion is increased, making it difficult to reduce the thickness.

Moreover, in the above-mentioned watch with a case structure, since the internal module must be accommodated inside the curved case structure, in order to ensure assembly and maintainability, it is necessary to connect the surface of one case to the other directly or through spacers. The insides of the housings are installed overlapping each other. In this case, if the range of the center angle of the two shells is small, there will be no problem, but if the range of the center angle of the two shells is large, when the two shells overlap, the surface near the end of the shell will be damaged. There is a problem that a normal airtight state cannot be obtained because the spacer near the end is deformed due to stress in the direction of bending on the surface or inside, or falls out of the spacer box. In particular, when the curvature near the ends of the housing is greater than that of the middle portion, the above-mentioned situation is more remarkable.

Contents of the invention

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a thinner wearable electronic device.

Furthermore, an object of the present invention is to provide a method of manufacturing a portable device in which two casings are stacked and attached to each other, so that assembly can be performed without trouble regardless of the curved shape of the casings.

In order to achieve the above object, the present invention provides a wearable electronic device, which is characterized in that it has: an annular or substantially C-shaped frame worn on the user's body; a display panel; a drive circuit for driving the display panel, the display panel and the drive circuit are respectively arranged on different circuit substrates, and at the same time, they are arranged along the peripheral surface of the frame without overlapping each other. The circuit boards, or the display panel and the drive circuit are respectively provided on one circuit board without overlapping each other, and arranged along the peripheral surface of the housing.

According to this wearable electronic device, since the display panel and the driving circuit are respectively provided on different circuit boards, and the circuit boards are arranged along the peripheral surface of the housing so as not to overlap each other, or the display panel and the driving circuit Since they are provided on one circuit board without overlapping each other and arranged along the peripheral surface of the housing, the thickness can be reduced.

In particular, by disposing the display panel and the drive circuit on different circuit boards, each can be independently manufactured, so that the yield at the time of manufacturing can be improved, and as a result, the manufacturing cost can be reduced.

Here, in the above-mentioned wearable electronic device, preferably, on the circuit board provided with the drive circuit, the drive circuit and a plurality of circuits including at least a power supply are arranged so as not to overlap each other.

According to this preferred structure, even on the circuit board on which the driving circuit is provided, since the circuits such as the driving circuit and the power supply are arranged without overlapping each other, the thickness of the circuit board can be suppressed, thereby achieving thinning of the wearable electronic device. .

Furthermore, in the above wearable electronic device, it is preferable that the display panel and the circuit board provided with the display panel have flexibility.

According to this preferred configuration, the display panel and the circuit board provided with the display panel are flexibly arranged along the housing.

Furthermore, in addition to the display panel and the circuit board provided with the display panel, the circuit board provided with the drive circuit may be formed of a flexible substrate (so-called flexible substrate). Furthermore, as a display panel having flexibility, for example, there is an electrophoretic display panel or the like.

And, in order to achieve the above object, the present invention provides a manufacturing method of a portable instrument, the portable instrument has: an annular or substantially C-shaped frame body worn on the user's body; a strip-shaped display panel; and a driving circuit for driving the display panel, wherein the frame body is composed of a first casing having a convex surface shape curved along a predetermined direction, and a first housing having a convex shape along the predetermined direction. The second housing with a concave inner shape curved in the direction is configured, and the display panel and the driving circuit are respectively provided on different circuit boards without overlapping each other along the peripheral surface of the second housing. Each circuit board is arranged, or the display panel and the driving circuit are arranged on one circuit board without overlapping with each other, and are arranged along the peripheral surface of the second casing, and are aligned in the bending direction. The surface of the first case and the inside of the second case are installed overlappingly so that they are directly or indirectly in close contact.

According to the present invention, like the wearable electronic device of the present invention, since the display panel and the drive circuit are respectively provided on different circuit boards, and the circuit boards are arranged along the peripheral surface of the housing so as not to overlap each other, or the Since the display panel and the drive circuit are provided on one circuit board without overlapping each other and arranged along the peripheral surface of the housing, the thickness can be reduced.

In order to achieve the above object, the present invention provides a method of manufacturing a portable instrument by combining a first casing having a convex surface shape curved in a predetermined direction and a concave inner surface curved in the predetermined direction. Shaped second shells are installed overlappingly so that the surface of the first shell and the inside of the second shell are directly or indirectly closely bonded to each other while aligning with the bending direction, and it is characterized in that, making the first case elastic in its bending direction, and making at least the surface of the first case A part directly or indirectly abuts against the inside of the second case, and thereafter, the first case and the second case are overlapped by releasing the deformation stress on the first case.

According to this invention, at least a part of the surface of the first housing is directly or indirectly brought into contact with the inner surface of the second housing in a state where the first housing is elastically deformed to increase its curvature. The deformation stress on the first case is released, and the curvature of the surface shape of the first case is reduced due to elastic recovery, so that the first case and the second case can be mounted on top of each other. Therefore, irrespective of the curved shapes of the first case and the second case, damage to the abutting surfaces of the cases, deformation/dropping of the spacer, etc. can be reduced, and a regular mounting state can be obtained more reliably.

In the present invention, it is preferable that the first case is constituted by a single member made of the same material. In this way, it is easy to make the first case elastic in the bending direction, and at the same time, it is easy to bend the first case as a whole, so that the installation work of the first case and the second case can be easily performed.

In the present invention, preferably, stress is applied between both ends of the first case to deform the first case. Thus, by applying stress between both ends of the first case, the curvature of the surface shape of the first case can be easily made larger than the curvature of the inner surface of the second case. In particular, when the second housing and the first housing are configured to extend in a wider range in a predetermined direction, it is possible to place a hand or a tool in contact with both ends of the first housing in order to apply stress. In the abutting state, the first casing is superimposed on the second casing for installation.

Furthermore, the present invention provides a method of manufacturing another portable instrument by combining a first casing having a convex surface shape curved in a predetermined direction, and a concave inner surface shape curved in the predetermined direction. The second housing is installed overlappingly, so that the surface of the first housing and the inner side of the second housing are directly or indirectly sealed in the state of aligning the bending direction, and it is characterized in that The second case has elasticity in its bending direction, and in a state where the second case is deformed so that the curvature of its surface shape becomes smaller, at least a part of the surface of the first case directly or indirectly abut against the inside of the second case, and then, by releasing the deformation stress on the second case, the first case and the second case are installed overlappingly.

According to this invention, at least a part of the surface of the first housing is directly or indirectly brought into contact with the inner surface of the second housing while elastically deforming the second housing to reduce the curvature of the inner surface thereof, Afterwards, by releasing the deformation stress on the second case, the curvature of the inner surface of the second case is increased due to elastic recovery, so that the first case and the second case can be mounted to overlap. Therefore, irrespective of the curved shapes of the first case and the second case, damage to the abutting surfaces of the cases and deformation/dropping of the spacer can be reduced, so that a regular mounting state can be obtained more reliably.

In the present invention, it is preferable that the second housing has a structure including a flexible window member. In this way, by providing a flexible window member on the second case, it can be configured so that the inside can be seen through the window member of the second case, and a display member can be configured, and at the same time, it can be easily given to the second case. Elasticity in the bending direction. As a flexible window member, synthetic resins, such as acrylic resin, can be used, for example.

In the present invention, it is preferable to constitute the second case using a single member made of the same material. Thus, since the process of attaching the window member to the second housing is omitted, the manufacturing process can be simplified.

In the present invention, it is preferable that the window member is configured independently of the second case, and after the second case is attached to the first case, the window member is attached to the second case. physically. In this way, since the second case is attached to the first case in a state before the window member is attached, the second case can be attached to the first case while the rigidity of the second case is weakened and the elasticity is increased.

In the present invention, preferably, stress is applied between both ends of the second case to deform the second case. In this way, by applying stress between both ends of the second case, the curvature of the inner surface of the second case can be easily made smaller than the curvature of the surface of the first case. In particular, when the structure is configured to extend in a wider range in a predetermined direction than the first case and the second case, it is possible to use a hand or a tool with it in order to apply stress to both ends of the second case. In the abutting state, the first casing is superimposed on the second casing for installation.

In the present invention, preferably, in a state where a spacer is installed on any one of the first case and the second case, the first case and the second case are connected via the spacer. The housings are installed overlappingly. In this way, since the first case and the second case can be tightly sealed by the spacer, a closed space can be defined inside or waterproofness can be imparted. In addition, the mounting work can be easily performed by stacking the two casings in a state where the spacer is attached to the one casing.

In the present invention, it is preferable to overlap the first case so that the surface of the first case comes into contact with the spacer in a state where the spacer is attached to the inside of the second case. mounted on the second housing. By attaching the spacer to the back surface of the concave second housing, the spacer can be easily held in the second housing, so that the installation work can be easily performed. In particular, by elastically deforming the first case and inserting it into the second case when the spacer is mounted inside the second case, it is difficult to affect the mounting state of the spacer, so it can be more easily performed. Installation work.

In the present invention, it is preferable to arrange an internal module between the first case and the second case, install the first case and the second case overlappingly, and store the internal module in the Between the first housing and the second housing. In this way, a portable instrument incorporating an internal module can be configured.

In the present invention, it is preferable that the inner module has flexibility capable of bending at least in the predetermined direction. By making the inner module flexible in a predetermined direction (bending direction), it can be easily accommodated in the case structure by bending it in the bending direction of the first case and the second case, so There is no need for the internal module to have a special curved shape suitable for the first case and the second case, and it is possible to reduce the cost of the internal module and facilitate assembly work, thereby reducing manufacturing costs.

Furthermore, the present invention provides a portable instrument characterized in that a first housing having a convex surface shape curved in a predetermined direction and a second housing having a concave inner shape curved in the predetermined direction are Overlapping installation, so that the surface of the first shell and the inside of the second shell are directly or indirectly sealed in the state of aligning the bending direction, the first shell and the second shell At least one of the shells in the body has elasticity in the bending direction, and the surface of the first shell and the inside of the second shell are in close contact with each other by virtue of the elastic force of the at least one shell. The state of being stressed in the direction of .

According to this invention, by virtue of the elastic force of the at least one housing, it becomes a state of being stressed in a direction in which the surface of the first housing and the inner surface of the second housing are brought into close contact with each other, so that the first housing can be secured. The stability of the overlapping installation state with the second housing can improve the uniformity of the sealing state between the surface of the first housing and the inside of the second housing, thereby improving airtightness and waterproofness.

In the present invention, it is preferable that the first casing and the second casing are installed through spacers. In this way, since the surface of the first case and the inside of the second case are in close contact with each other through the spacer, airtightness and waterproofness can be improved.

According to the present invention, since the display panel and the driving circuit are respectively provided on different circuit boards and the circuit boards are arranged along the peripheral surface of the housing so as not to overlap each other, the thickness can be reduced.

According to the present invention, in the method of manufacturing a portable device in which two casings are mounted on top of each other, an excellent effect can be obtained that assembly can be performed without hindrance regardless of the curved shape of the casings.

Description of drawings

FIG. 1 is a four-sided view of a wearable electronic device according to a first embodiment of the present invention.

Fig. 2 is a cross-sectional view of the wearable electronic device.

FIG. 3 is a plan view showing the structure of a display unit.

FIG. 4 is a diagram for explaining assembly of a display unit.

FIG. 5 is a diagram showing the arrangement relationship between a push button operation button and a control circuit board.

FIG. 6 is an enlarged view showing a connection portion between a display panel substrate and a control circuit substrate.

Fig. 7 is a schematic perspective view of a portable device manufactured in a second embodiment.

Fig. 8 is a schematic longitudinal sectional view showing a sectional structure of the portable device along a bending direction.

9 is cross-sectional views (a) to (e) showing cross-sectional structures along the width direction of portions indicated by Sa to Se in FIG. 14 .

Fig. 10 is a schematic plan view showing a part of the base member of the portable device.

Fig. 11 is a schematic plan view of an internal module of the portable device.

Fig. 12 is a schematic perspective view showing an exposed portion with one cover member removed from the portable device.

FIG. 13 is a schematic explanatory diagram schematically showing states before and after installation of a portable device manufactured according to the embodiment.

Fig. 14 is a schematic process diagram (A-1) to (A-3) and (B-1) to (B-3) schematically showing the manufacturing process of two embodiments.

Fig. 15 is a schematic perspective view showing the shape when the spacer is attached.

Fig. 16 is a diagram showing another form of the cover member of the portable device.

Symbol Description

10 arm-worn electronic device; 11 display unit; 12 frame body; 12D, 12E exterior body; 14 controller for control; 15 drive IC (drive circuit); 16 switch terminal; 22 display panel; 24 connector; 60 button operation button; 70 display panel substrate; 80 control circuit substrate; 110 portable instrument; 111 base part; 111s through part; 111t bridge part; Frame part; 112b display window; 113 cover body part; 113a opening part; 114 internal module; 114a display body; 114x display area; 114b wiring substrate; 114c terminal part; 115, 116 cushion block; 117 stop screw; 118A switch terminal; 118B insulating frame; 118C coil spring; 119A battery holding frame; 119B electrode terminal; 119C battery.

Detailed ways

Embodiments of the present invention will be described below with reference to the drawings.

(first embodiment)

In this embodiment, an arm-worn electronic device as one form of a portable device will be described.

1 is a four-sided view showing the right side, plane, front, and back of an arm-worn electronic device 10 according to this embodiment, and FIG. 2 is a cross-sectional view of the arm-worn electronic device 10 . As shown in the figure, an arm-worn electronic device 10 has a display unit 11 and a housing 12 .

As shown in FIGS. 1 and 2 , the frame body 12 is formed in a substantially C-shaped cross-section, has a separation portion 50 for inserting an arm or a wrist, etc. when worn, and includes a left frame body 12A and a right frame body 12B, Inner cover 12C, exterior bodies 12D, 12E.

The left housing 12A and the right housing 12B are housings constituting left and right side surfaces of the arm-worn electronic device 10 , and the display unit 11 is sandwiched between the pair of left and right housings 12A and 12B.

The back cover 12C constitutes the back of the arm-worn electronic device 10 , and is a strip-shaped long plate having a substantially C-shaped cross section, and is fixed by a pair of left and right side frames 12A, 12B and screws 51 .

The exterior bodies 12D and 12E are respectively provided at both ends of the separation part 50 and constitute the exterior of the end part of the separation part 50 . In these exterior bodies 12D and 12E, the push button operation button 60 is arrange|positioned in the exterior body 12D.

The display unit 11 has a strip-shaped display panel 22 that is curved along the peripheral surface of the housing 12 and is disposed between the exterior body 12D and the exterior body 12E. In addition, the entire length of the display panel 22 is visibly covered by a substantially transparent cover 30 formed of transparent resin or transparent glass, and the display panel 22 is protected by the cover 30 . In this embodiment, the display panel 22 is provided with a plurality of 7-segment (segment) 22A, and the current time is displayed using these 7-segment 22A.

FIG. 3 is a plan view showing the structure of the display unit 11 .

As shown in the figure, the display unit 11 has two substrates, a display panel substrate 70 and a control circuit substrate 80. The display panel substrate 70 is provided with the display panel 22 to form a display portion. The control circuit substrate 80 is used to control the display panel 22. . The display panel substrate 70 and the control circuit substrate 80 have flexible (circuit) substrates (FPC: Flexible Printed Circuit, flexible printed circuit) 21A, 21B made of resin (plastic: polyimide or polyester, etc.) is formed into a strip shape, and various circuits are mounted on these flexible substrates 21A, 21B.

Specifically, for the display panel substrate 70 , the flexible strip-shaped display panel 22 is provided on the flexible substrate 21A. In this embodiment, an electrophoretic display panel is used as the display panel 22, and a plurality of 7 segments 22A for displaying numerals 0 to 9 are arranged in the longitudinal direction, and time and the like are displayed by each of the 7 segments 22A as described above. In addition, a (reflective) liquid crystal display panel or an organic EL (electro-luminescence) display panel may be formed on plastic, or may be made bendable by grinding or the like, and may also be used as the display panel 22 .

On the other hand, on the flexible substrate 21B of the control circuit board 80, the power supply 13 for supplying power to each part, the power supply 13 for controlling the arm-worn electronic device, and the other end of the control circuit board 80 are respectively mounted without overlapping each other. A controller 14 for overall control of the device 10 , a driver IC (driver circuit) 15 for performing display control on the display panel 22 , and a switch terminal 16 . In addition, the arrangement order of these circuits on the flexible substrate 21B is arbitrary, and for example, the switch terminal 16 may be provided between the power supply 13 and the control controller 14 .

The power supply 13 uses a button battery which is a common disposable battery, and a socket for installing the button battery is provided at the end of the flexible substrate 21B.

The control controller 14 is configured as a so-called microcomputer, and has MPU, ROM, RAM, etc. not shown in the figure. Further, the control controller 14 incorporates an unillustrated oscillator, generates a reference clock, and performs a time measurement operation based on the reference clock.

The switch terminal 16 is a contact terminal formed on the flexible substrate 21B. When the push button 60 is pressed, it is turned on and turned on, and an on signal is input to the control controller 14 accordingly.

When the button operation knob 60 is operated and an ON signal is input, the control controller 14 executes various operations corresponding to the operation, for example, a time adjustment operation.

In order to display the current time on the display panel 22, the driver IC 15 outputs a signal for display control according to the timing operation of the control controller 14.

The display panel substrate 70 and the control circuit substrate 80 are manufactured independently, respectively, and are connected to each other by the connectors 24 provided at respective one ends of the display panel substrate 70 and the control circuit substrate 80 . In this embodiment, OLB (Outer Lead Bonding) such as ACF (Anisotropic Conductive Film: Anisotropic Conductive Film) is used for the connector 24 . Specifically, in the case of using ACF for the connector 24, the connector 24 is formed by affixing the ACF to the respective ends of the display panel substrate 70 and the control circuit substrate 80. As shown in FIG. Hot pressing is performed to connect the display panel substrate 70 and the control circuit substrate 80 to each other. Through this connection, the electrical conduction between the display panel substrate 70 and the control circuit substrate 80 is realized, and the signal for display control output from the control controller 14 can be input to the display panel substrate 70 through the connector 24. to drive the display panel 22.

Furthermore, as shown in FIG. 2 above, the display unit 11 configured as described above is provided on the inner surface of the curved back cover 12C along substantially the entire circumference of the housing 12 . At this time, the exterior body 12D is located above the control circuit board 80 of the display unit 11 . Therefore, by detaching the exterior body 12D to expose the button battery serving as the power source 13 of the control circuit board 80, the button battery can be replaced. Furthermore, as shown in FIG. 5 , the switch terminal 16 is located directly below the push button operation button 60 provided on the exterior body 12D. Furthermore, as shown in FIGS. 2 and 6 , the exterior body 12D covers the control circuit board 80 from the end of the separating portion 50 and extends to above the connection position of the display panel board 70 and the control circuit board 80 using the connector 24 . , connected to the cover body 30 covering the entire display panel 22 .

Here, as described above, the display panel substrate 70 and the control circuit substrate 80 are connected by the connectors 24 respectively provided at the respective ends to form a strip-shaped display unit 11 as a whole, and along the peripheral surface of the frame body 12 ( More precisely, the strip-shaped display unit 11 is provided on the inner peripheral surface of the inner cover 12C. With this configuration, since the display panel substrate 70 and the control circuit substrate 80 do not overlap each other, it is possible to reduce the thickness of the arm-worn electronic device 10 .

According to this embodiment, the display panel substrate 70 and the control circuit substrate 80 are arranged along the peripheral surface of the housing 12 without overlapping each other, so that the thickness of the arm-worn electronic device 10 can be reduced.

Furthermore, according to the present embodiment, since the display panel substrate 70 and the control circuit substrate 80 are configured using different substrates, they can be independently manufactured. Therefore, the yield at the time of manufacturing can be improved, and as a result, the manufacturing cost can be reduced.

Furthermore, according to the present embodiment, since the power supply 13, the control controller 14, the drive IC (drive circuit) 15, and the switch terminal 16 are arranged on the control circuit board 80 without overlapping each other, it is possible to suppress the loss of the control circuit board 80. thickness, so that the thinning of the arm-worn electronic device 10 can be realized.

Furthermore, since the thickness of the control circuit board 80 is suppressed in this way, the exterior body 12D arranged to cover the control circuit board 80 does not protrude in the thickness direction of the housing 12, and a so-called headless exterior structure can be realized.

In addition, this embodiment shows only one form of this invention, It can change and apply arbitrarily within the scope of this invention.

For example, the present embodiment exemplifies a configuration using a coin cell that is a primary battery as the power source 13, but is not limited thereto, and a configuration using a secondary battery may be used. As the secondary battery, for example, a structure such as a flexible lithium polymer battery is preferably used. And, for example, in the case of using a secondary battery as the power source 13, as a charging method to the secondary battery, a charging terminal may be provided on the frame body 12 as usual, and the charging terminal The secondary battery can be charged by applying a charging voltage, and the secondary battery can be supplied with electric power wirelessly by means of electromagnetic induction or the like.

Furthermore, for example, the above-mentioned arm-worn electronic device 10 may be provided with a wireless communication unit capable of wireless communication with an external computer terminal, and the display panel 22 may be configured to display data obtained through communication.

Furthermore, for example, in this embodiment, the housing 12 of the arm-worn electronic device 10 has a substantially C-shaped cross section, but the present invention is not limited thereto. That is, as long as it is a shape that can be worn on the user's body, it may be, for example, a ring shape, or at least a ring shape when worn.

In addition, it is preferable that the housing 12 is constituted by a first casing having a curved convex surface shape and a second casing having a concave inner surface curved in a predetermined direction.

Furthermore, the display panel substrate 70 and the control circuit substrate 80 may be provided on one circuit substrate without overlapping each other, and arranged along the peripheral surface of the housing 12 .

(second embodiment)

The second embodiment of the present invention will be described in detail below.

In the following embodiments, a method of manufacturing a portable device (electronic device) such as the arm-worn electronic device 10 described in the first embodiment and a portable device manufactured by implementing the manufacturing method will be described.

7 is a schematic perspective view showing the structure of a portable device manufactured by an embodiment of a method for manufacturing a portable device according to the present invention, FIG. 8 is a longitudinal sectional view showing a section along the bending direction of the portable device, and FIG. Cross-sectional views (a) to (e) of the respective cross-sectional structures of parts Sa to Se shown. The portable device 110 is a wearable device worn on the human body and used, and is also an electronic device having an electronic circuit built therein. More specifically, it is an arm-worn electronic device used by being worn on the arm. Examples of the arm-worn electronic device include watches, diving computers, stopwatches, blood pressure monitors, and other human body sensing devices, and descriptions of their specific functions are omitted here.

This portable device 110 has a curved strip-shaped base member 111 and two cover members 112 and 113 attached to the surface side of the base member 111 as members (exterior members) constituting the housing structure. Furthermore, an internal module 114 is accommodated inside the housing structure formed by the base member 111 and the cover members 112 , 113 .

The base member 111 is made of metal such as stainless steel, synthetic resin, or the like, and has rigidity capable of maintaining a curved shape in a self-supporting state (that is, without stress other than standard gravity). The base member 111 has a substantially C-shaped curved shape, specifically, a curved shape substantially along the outer circumference of an arm (particularly, a wrist), or a curved shape substantially along an ellipse.

The base member 111 has a curved shape substantially along the ellipse X shown in FIG. ) is 0 degrees, and the base member 111 extends within a range in which the central angle is in the range of 0 degrees to 270 degrees (260 degrees to 300 degrees). That is, it has a shape along the ellipse X (approximately elliptical arc shape) from the above-mentioned one intersection point Xa through the intersection point Xb with the minor axis and the other intersection point Xc with the major axis to the vicinity of the other intersection point Xd with the minor axis .

More specifically, the surface shape of the base member 111 of the present embodiment is a shape formed by connecting a plurality of arc portions having different radii of curvature. That is, in the illustrated example, the surface shape of the base member 111 has: a curved region A at one end of the base member 111 with a small radius of curvature (the radius of curvature is about 22 to 26 mm); The curved area A is connected, and the radius of curvature is larger than that of the curved area A (the radius of curvature is about 47 to 51 mm); the curved area C is connected to the curved area B, and the radius of curvature is smaller than that of the curved area B (the radius of curvature is about 22 to 26 mm) ; Curved area D, which is connected with curved area C, has a larger radius of curvature than curved area C (the radius of curvature is about 54-58mm); curved area E, which is connected with curved area D, has a smaller radius of curvature than curved area D (radius of curvature about 22 to 26 mm); and a flat region F formed flatly, which is connected to the curved region E.

The base member 111 has rigidity capable of maintaining its shape independently as described above, but preferably also has some degree of elasticity, and can be deformed to some extent by human hands when wearing or taking it off. In addition, the base member 111 can be manufactured by pressing, forging, etc., but in order to improve the accuracy of its curved shape, it is preferable to cut out the above-mentioned curved shape by performing electric discharge machining or the like on a block (or plate-like body) of a material such as metal. shape to manufacture.

FIG. 10 is a plan view showing part of the base member 111 . A part of the bending direction of the base member 111 is provided with a bridge portion 111t intersecting (perpendicular in the illustrated example) the bending direction (longitudinal direction) of the base member 111 . As shown in FIG.9(b), this bridge|bridging part 111t has the penetration part 111s which penetrates in the bending direction in the back side. The bridge part 111t is formed in the middle area of the center angle of the said ellipse X of 200 degrees vicinity (180 degrees - 220 degrees). The bridge portion 111t extends in the width direction of the base member 111 , and both ends thereof are connected to the outer edge portion 111x of the base member 111 . The bridge portion 111t can be formed by cutting the surface of the integral member from both sides with a tool such as a T-slot cutter to penetrate the through portion 111s. In addition, by forming a through hole in the portion where the through portion 111s is to be formed using a drilling tool such as a drill, and performing thread tangential processing in a state where a wire is inserted through the through hole, the bridge portion can be formed in the same manner as described above. 111t. Furthermore, the bridge portion 111t may be formed from a member independent of the base member 111, and the bridge portion 111t may be fixed to the base member 111 by any method such as welding, welding, or bonding.

The surface of the bridge portion 111t has a surface shape continuous with the outer edge portion 111x of the base member 111 . In the case of the illustrated example, the surface of the bridge portion 111t is flat in the width direction (vertical direction in FIG. 10 ), and curved substantially along the curved shape of the entire base member 111 in the bending direction (left-right direction in FIG. 10 ). . However, the bridge portion 111t and the outer edge portion 111x of the base member 111 connected thereto may have a continuous surface shape. For example, the surface of the bridge portion 111t may be a flat surface. Here, the continuous surface shape means that there is no curved portion having a radius of curvature smaller than the range that can be sealed by a general spacer.

The cover member 112 is configured to extend in the vicinity of the central angle of the ellipse X from 0° to 200° (180° to 220°), and is attached to the surface of the base member 111 in this range. The cover member 112 has a frame body 112a made of metal such as stainless steel, synthetic resin, or the like, and a display window 112b formed inside the frame body 112a. The display window 112b is made of a transparent material (glass or transparent resin) fitted and fixed on the frame body 112a. However, the display window 112b may also be made of an opening that does not use a material, and of course the entire cover member 112 may also be made of a transparent material. In addition, as shown in FIG. 9( a ), a display body 114 a of an internal module 114 described later can be seen through a display window 112 b.

A spacer box is formed in the outer edge portion of the inner surface of the cover member 112, and a closed curved (rectangular frame-shaped) spacer 115 (refer to FIG. 15 ), the base member 111 and the cover body are accommodated in the spacer box. The member 112 is tightly bonded via the spacer 115 . However, the spacer 115 may be housed in a spacer case provided on the base member 111 , as long as the base member 111 and the cover member 112 are tightly bonded via the spacer 115 in some form. And, the base member 111 and the cover member 112 are fixed by set screws 117 .

And, also constitute the same spacer box as above in the outer edge portion of the inside of the cover member 113, accommodate the spacer 116 (referring to FIG. 15 ) of closed curve shape (rectangular frame shape) in this spacer box, the base member 111 and the cover member 113 are in close contact with each other through the spacer 116 . However, the spacer 116 may be housed in a spacer case provided on the base member 111 , as long as the base member 111 and the cover member 113 are brought into close contact via the spacer 116 in some manner. And, the base member 111 and the cover member 113 are fixed by set screws 117 .

FIG. 11 is a top view of the internal module 114 . The inner module 114 is configured in a belt shape that electrically connects the display body 114a and the wiring board 114b, and has flexibility as a whole in at least the bending direction of the base member 111 described above.

The display body 114a is respectively formed with transparent electrodes on the inner surfaces of two transparent flexible films, and photoelectric materials are arranged between these flexible films, such as materials containing many microcapsules (for example, the electronic ink of E-ink company), Particles having different hues (for example, white particles and black particles) moving in opposite electric field directions are accommodated in the microcapsules together with the transparent liquid. By changing the polarity of the voltage applied between the transparent electrodes, the display body 114a can form a desired display with high contrast. The display body 114a has a belt-shaped display region 114x extending along the bending direction of the base member 111 . Furthermore, the display body 114a may also be composed of a liquid crystal display panel or an organic light emitting panel.

The wiring board 114b is a flexible board made of polyimide resin or the like, and wiring is formed on or in the board. A terminal portion 114c electrically connected to a terminal of the display body 114a is provided at an end portion of the wiring board 114b. Furthermore, an IC chip and other electronic components 114y are mounted on the surface of the wiring board 114b. Furthermore, electrodes (pads) 114z and 114v for connecting a switch are provided on the surface of the wiring board 114b, and electrodes (pads) 114w and 114u for connecting a battery are also formed.

The connector 24 described in the first embodiment is provided at one end of the display body 114a and the wiring board 114b, and they are connected to each other through the connector 24 . In this way, since the display body 114a and the wiring board 114b are arranged without overlapping each other, the thickness of the internal module 114 can be suppressed, and the thickness reduction of the portable device 110 can be realized.

The internal module 114 is housed between the base member 111 and the cover members 112 and 113 so that the display 114 a is arranged inside the cover member 112 and the wiring board 114 b is arranged inside the cover member 113 . Here, as shown in FIG. 9( b ), the internal module 114 is disposed so as to pass through the through portion 111s formed on the back side of the bridge portion 111t of the base member 111 and extend on both sides in the bending direction of the bridge portion 111t. In addition, it is preferable to form a structure in which the region where the terminal portion 114c electrically connected to the display body 114a is provided in the wiring board 114b of the internal module 114 is inserted through the through portion 111s. In this way, part of the display body 114a is not covered by the bridge portion 111t, and at the same time, the mounting area of the electronic component 114y on the wiring board 114b, the formation area of the electrodes 114z and 114v for switch connection, etc. can be avoided, and the thickness of the through portion 111s can be reduced. Therefore, the thickness of the portion where the bridge portion 111t is provided, that is, the region where the bridge portion 111t and the penetration portion 111s are provided side by side in the thickness direction can be reduced.

In addition, in the illustrated example, the inner bottom surface facing the penetration portion 111 s is formed flatly for ease of processing and for easy insertion operation of the internal module 114 , but the inner bottom surface may be formed in a curved shape with the base member 111 corresponding curved surfaces.

The surface of the bridge portion 111t is in close contact with the end portions of the lid members 112 , 113 via spacers 115 , 116 . As mentioned above, since the surface of the bridge portion 111t is formed continuously with the outer edge of the base member 111, it is difficult to generate a gap between the pads 115, 116, the bridge portion 111t, and the outer edge of the base member 111. The blocks 115 and 116 securely seal the internal space of the case structure composed of the base member 111 and the cover member 112 and the interior space of the case structure composed of the base member 111 and the cover member 113 , respectively.

The cover member 113 is provided with an opening 113a, and a switch terminal 118A and an insulating frame 118B made of synthetic resin or the like are mounted (fitted and fixed) in the opening 113a. The electrodes 114z and 114v are electrically connected, and the insulating frame 118B is interposed between the switch terminal 118A and the cover member 113 in a frame shape. The switch terminal 118A is in conductive contact with the aforementioned electrodes 114z and 114v via the coil spring 118C. The coil spring 118C has a cylindrical portion 118e housed in a housing hole 118h opened at the bottom of the switch terminal 118A, and a truncated conical portion 118f. The lower portion is connected and reduced in diameter downward, and the truncated cone-shaped portion 118f is held so as not to come out at the opening edge of the storage hole 118h.

The helical coil structure of the coil spring 118C is configured such that the cylindrical portion 118e is stored in a compressed state in the housing hole 118h to exert an elastic force for ensuring conductive contact pressure, and the truncated conical portion 118f is always in a tightly wound state. , the tip of the coil spring 118C is in contact with the electrodes 114z and 114v. This truncated conical portion 118f is configured so that its shape does not change by always being in a densely rolled state, thereby ensuring the stability of the conductive contact with the electrodes 114z and 114v.

If the wearer touches the switch terminal 118A and the cover member 113 around it with a finger or the like, the potentials of the electrodes 114z and 114v electrically connected to the switch terminal 118A change, thereby detecting the switch operation, thereby passing through the wiring board 114b. Predetermined operations, such as switching of the display content of the display body, setting operations, etc.

FIG. 12 is a schematic perspective view showing an exposed portion when the cover member 113 is removed. A battery holding frame 119A and an electrode terminal 119B are fixed to the wiring substrate 114b. If the battery 119C shown in FIG. 7 and FIG. The electrode 114w provided on the wiring board 114b is in conductive contact, and the electrode provided on the side surface of the battery 119C is in conductive contact with the electrode 114u on the wiring board 114b through the electrode terminal 119B.

In addition, the cover member 113 has a concavo-convex inner surface shape commensurate with the thickness of the wiring board 114b, so that the thickness of the internal space defined by the base member 111 and the cover member 113 varies depending on the position. For example, as shown in FIG. 9( c), a larger thickness of the internal space is ensured in the portion where the electronic component 114y is mounted on the wiring substrate 114b, while as shown in FIG. 9( d), in the portion where the electronic component 114y is not mounted The thickness of the internal space in the part of 114b is slightly larger than the thickness of the wiring substrate 114b.

The portable device 110 described above can be worn on an arm (particularly, a wrist) through the opening portion of the curved shape of the portable device 110 bent in a substantially C-shape. Unlike conventional arm-worn portable devices such as wristwatches and diving computers, it is possible to realize an extremely novel design in which a band (bracelet shape) is formed along the wearing part (arm). In addition, a long display area can be ensured along the bending direction of the wearing part, and miniaturization and thinning can be realized. Furthermore, since the internal module 114 is integrally formed, the number of parts is small and the assembly work is easy. Since the internal module 114 has flexibility in the bending direction as a whole (that is, both the display body 114a and the wiring board 114b have flexibility in the bending direction), it can be accommodated inside in a state suitable for the housing structure.

Next, an embodiment of a method of manufacturing a portable device according to the present invention will be described with reference to FIGS. 13 and 14 . FIG. 13 shows the state (left side in FIG. 13 ) before attaching the base member 111 (first case) and the cover member 112 (second case), and the installation of the base member 111 and the cover in the manufacturing process of the portable device 110. A schematic cross-sectional view of the state (right side of FIG. 13 ) of the component 112.

Also, in this specification, the curvature distribution along the bending direction is used as an index of the curved shape. That is, the curved shape of the present invention is not limited to an arc-shaped shape having a single curvature (or radius of curvature), but includes a shape obtained by connecting arc-shaped portions having different curvatures (radius of curvature), Various shapes such as shapes in which the curvature (radius of curvature) changes continuously.

In this case, considering the first curved line representing the convex curved shape of the mounting portion (curved portion mounted on the second case) on the surface of the first case (base member 111), and the first curve representing the (Cover body member 112) When the second curve of the concave curved shape of the mounting part (the curved part mounted on the first housing) inside, the first curve and the second curve have substantially substantially corresponding curved shapes and length. At this time, if the first curve and the second curve are completely aligned, when the first case and the second case are stacked and installed, the elastic force caused by elastic deformation will not spread between the two cases. . And, if the curvature distribution of the first curve is smaller than the curvature distribution of the second curve as a whole, when the first casing and the second casing are stacked and installed, the elastic force on at least one side will spread to make the two casings tightly spaced. The state in the combined direction.

In addition, in this specification, the central angle range θ of the curved surface is used as another index indicating the curved shape of the surface or rear surface (curved surface) of the housing such as the base member 111 and the cover members 112 and 113 . This central angle range θ represents the range of the azimuth angle of the normal line of the curved surface. As shown in the left diagram of FIG. Intersection angle and central angle range of two straight lines (in the case of the illustrated example, the normal line to the surface end of the base member 111) between the center (the intersection of the minor axis and the major axis) and the end of the base member 111 θa and θb θ are equal. However, even though the curved shape is an elliptical arc, in fact, other than the intersection with the minor axis and the intersection with the major axis, other normals do not pass through the center of the ellipse. Also, even when the curved shape is not an elliptical arc, the central angle range θ represents the angular range of the normal line of the curved surface, as described above.

The surface of the base member 111 and the inside of the cover member 112 have curved shapes substantially corresponding to each other, but before mounting, it is configured such that the curvature of the surface shape of the base member 111 (or the curvature distribution along the bending direction, the same below) is larger than that of the cover. The above-mentioned curvature (or curvature distribution) of the inner surface shape of the body member 112 is small, that is, the average value of the radius of curvature along the bending direction is made large. Here, it is preferable that all the radii of curvature along the bending direction become uniformly large, that is, the curvature distribution becomes uniformly small over the entire range.

In addition, at least one of the base member 111 and the cover member 112 has elasticity in the bending direction. In the present embodiment, by forming the base member 111 from elastic metal or synthetic resin, it is possible to easily manufacture the base member 111 having elasticity in the direction in which the curvature (curvature distribution) changes. In addition, in the cover member 112, since the display window 112b is made of a synthetic resin such as acrylic resin, elasticity can also be provided in the direction in which the above-mentioned curvature (curvature distribution) changes.

With the configuration as described above, at least one of the base member 111 and the cover member 112 is in an elastically deformed state after installation, so due to the elastic force, a force is exerted between the surface of the base member 111 and the back surface of the cover member 112. The state of the stress F in the direction that makes them adhere to each other. Therefore, the stress F stabilizes the mounting state of the base member 111 and the cover member 112 and improves the uniformity of the adhesive state, so that the airtightness through the spacer 115 can be improved and high waterproofness can be obtained.

Fig. 14 is a schematic process diagram showing a part of the manufacturing process of the portable device of the present invention. (A-1) to (A-3) and (B-1) to (B-3) in FIG. 14 respectively show two kinds of manufacturing processes.

In the manufacturing steps shown in (A-1) to (A-3), it is assumed that the base member 111 has elasticity in the bending direction of its surface shape, and as shown in FIG. 14(A-1), the base member 111 The surface shape and the inner shape of the cover member 112 have curved shapes substantially corresponding to each other, but before mounting, it is configured such that the above-mentioned curvature (curvature distribution) of the surface shape of the base member 111 is smaller than or equal to the above-mentioned curvature of the inner surface shape of the cover member 112. Curvature (curvature distribution), that is, the average value of the radius of curvature along the curved direction of the surface shape of the base member 111 is greater than or equal to the average value of the radius of curvature of the curved direction of the inner shape of the cover member 112 . Here, it is preferable to configure so that all the radii of curvature along the bending direction are equally different, that is, the curvature distribution is equally different over the entire range. However, the curved shape of the surface of the base member 111 and the curved shape of the inner surface of the cover member 112 may be substantially the same. In this case, the elastic force of the base member 111 does not spread to the cover member 112 in a state where the base member 111 and the cover member 112 are overlapped.

Next, as shown in FIG. 14(A-2), the base member 111 is elastically deformed in a direction in which the curvature of the surface increases by applying external stress from the surface side to the back side. The external stress may be applied by stretching in a direction in which both ends of the base member 111 approach each other, or may be applied by pressing the base member 111 . At this time, the curvature (or curvature distribution) of the surface shape of the base member 111 becomes larger than the curvature (or curvature distribution) of the back shape of the cover member 112, and the base member 111 can be accommodated on the back side of the cover member 112. In addition, it is preferable that the amount of elastic deformation of the base member 111 be uniformly generated in the bending direction.

Thereafter, at least a part of the surface of the base member 111 is brought into contact with the inner surface of the cover member 112 directly or through the spacer 115 . In this embodiment, since the spacer 115 is interposed between the base member 111 and the cover member 112, at least a part of the surface of the base member 111 abuts against the inside of the cover member 112 through the spacer 115, but there is no spacer. When the spacer 115 is attached, at least a part of the surface of the base member 111 may be brought into direct contact with the inner surface of the cover member 112 .

And, in the above-mentioned state, as shown in FIG. 14 (A-3), because it is desired to restore the curved shape of the base member 111 to its original state by eliminating the external stress applied to the base member 111. shape, so the above-mentioned curvature (or curvature distribution) of the base member 111 is reduced, and it is installed to follow the shape of the cover member 112 . In this way, before installation, when the above-mentioned curvature (or curvature distribution) of the surface shape of the base member 111 is smaller than the above-mentioned curvature (or curvature distribution) of the inner surface shape of the cover member 112, as shown in FIG. Due to the elasticity of the member 111, stress is applied between the surface of the base member 111 and the inner surface of the cover member 112 in a direction to make them adhere to each other.

Especially in the present embodiment, elastic deformation can easily occur by applying stress between both end portions of the base member 111 . This is because the range in which the base member 111 extends in the bending direction is wider than that of the cover member 112 , so that stress is easily applied between both ends of the base member 111 .

On the other hand, in the manufacturing process shown in (B-1) to (B-3), it is assumed that the cover member 112 has elasticity in the bending direction, and as shown in FIG. 14(B-1), the base member 111 and the The cover member 112 has curved shapes substantially corresponding to each other, but before installation, it is configured such that the above-mentioned curvature (or curvature distribution) of the surface shape of the base member 111 is smaller than or equal to the above-mentioned curvature (or curvature distribution) of the inner surface shape of the cover member 112 ), that is, the average value of the radius of curvature along the curved direction of the surface shape of the base member 111 is greater than or equal to the average value of the radius of curvature of the curved direction of the inner shape of the cover member 112 . Here, it is preferable to configure so that all the radii of curvature along the bending direction are equally different, that is, the curvature distribution is equally different over the entire range. However, the curved shape of the surface of the base member 111 and the curved shape of the inner surface of the cover member 112 may be substantially the same. In this case, the elastic force of the cover member 112 does not spread to the base member 111 in a state in which the base member 111 and the cover member 112 are overlapped.

Next, as shown in FIG. 14(B-2), by applying external stress to the cover member 112 in the direction from the back side to the front side, elastic deformation occurs in a direction in which the above-mentioned curvature (or curvature distribution) becomes smaller. . The external stress may be applied by pulling both ends of the cover member 112 apart in a direction to separate them, or by pressing the cover member 112 to apply the external stress. At this time, the above-mentioned curvature (or curvature distribution) of the inner surface shape of the cover member 112 becomes smaller than the above-mentioned curvature (or curvature distribution) of the surface shape of the base member 111, and the base member 111 can be housed in the back surface of the cover member 112. side. In addition, it is preferable to cause the amount of elastic deformation of the cover member 112 to be uniform along the bending direction.

Thereafter, at least a part of the surface of the base member 111 is brought into contact with the inner surface of the cover member 112 directly or through the spacer 115 . In this embodiment, since the spacer 115 is interposed between the base member 111 and the cover member 112, at least a part of the surface of the base member 111 abuts against the inside of the cover member 112 through the spacer 115, but there is no spacer. When the spacer 115 is attached, at least a part of the surface of the base member 111 may be brought into direct contact with the inner surface of the cover member 112 .

And, in the above-mentioned state, as shown in FIG. 14(B-3), because it is desired to restore the bent shape of the cover member 112 to its elastic state by eliminating the external stress applied to the cover member 112 The original shape, so the curvature (or curvature distribution) of the cover part 112 is increased, and it is installed to follow the shape of the base part 111 . In this way, before installation, when the curvature (or curvature distribution) of the surface of the base member 111 is smaller than the curvature (or curvature distribution) of the inside of the cover member 112, as shown in FIG. Elasticity generates stress between the surface of the base member 111 and the inner surface of the cover member 112 in a direction in which they are brought into close contact with each other.

In the above-mentioned two manufacturing processes as shown in FIG. 14 , one of the shells of the base member 111 and the cover member 112 is made of an elastic body, and elastic deformation is caused by applying external stress to the one shell, but it is also possible to make The casings of both the base member 111 and the cover member 112 are made of elastic bodies. In addition, in this case, only one case may be elastically deformed, or both cases may be elastically deformed.

In each of the above-mentioned manufacturing steps, it is necessary to accommodate the internal module 114 inside the case structure, so the base member can be mounted as described above with the internal module 114 disposed between the base member 111 and the cover member 112 before mounting. 111 and the cover part 112 to manufacture the above-mentioned portable instrument 110.

In the above manufacturing steps, the case where the cover member 112 is attached to the base member 111 has been described, but the cover member 112 before the display window 112b is attached, that is, the frame body 112a may be attached to the base member 111 according to the above manufacturing steps. After that, the display window 112b is bonded to the frame body 112a with an adhesive material or the like, or the display window 112b is fixed to the frame body 112a by pressing or the like. In this way, since the cover member 112 is attached to the base member 111 in a state before the display window 112b is attached, the cover member 112 can be attached to the base member while the rigidity of the cover member 112 is weakened and the elasticity is improved. 111 on. Furthermore, as a material of the display window 112b, a highly transparent and flexible synthetic resin such as acrylic, ABS, or polycarbonate is used.

In the present embodiment, the cover member 112 is not limited to having the frame body 112a and the display window 112b independently, and as shown in FIG. 16 , the frame body 112a and the display window 112b may be integrally formed. In this way, the process of attaching the display window 112b to the frame body 112a is omitted, so that the manufacturing process can be simplified. Also, in this configuration, as the cover member 112, it is preferable to use a flexible material with sufficient transparency (for example, synthetic resin such as acrylic, ABS, polycarbonate) for the display window 112b, and the display window can be Parts other than 112b, that is, parts corresponding to the frame body 112a, are colored or the like.

In addition, in this embodiment, as the display body 114a that can be seen from the display window 112b, a flat panel display such as an electrophoretic display (EPD: Electrophoretic Display) or a liquid crystal display (LCD: Liquid Crystal Display), or an organic EL (OEL : Organic Electro luminescence, organic electroluminescent) and other light-emitting elements composed of flat-panel displays.

In this embodiment, at least one case of the base member 111 and the cover member 112 is made of an elastic body, and the other case is brought into contact with the other case in a state where an external stress is applied to the one case and elastically deformed. Direct or indirect abutment, and then, by relieving external stress, the base member 111 and the cover member 112 can be attached without hindrance even if the central angle range of the curved shape of the housing is large. That is, when the base member 111 and the cover member 112 are installed through the spacer 115 as described above, the spacer 115 disposed near the end of the cover member 112 contacts the base member 111 and is held by the base member 111. Stress is applied in the direction along the inner surface of the cover member 112, thereby preventing the spacer 115 from being deformed or falling off from the spacer case, so that airtightness and waterproofness can be improved.

Furthermore, in this embodiment, since at least one housing is elastically deformed and attached to the other housing, regardless of the curved shape of the housing, especially even if the central angle range of the curved shape If the curved shape becomes larger and the curved shape becomes more complicated, or the radius of curvature of both ends of the curved shape becomes smaller, the two housings can be directly or indirectly mounted without hindrance. Therefore, restrictions on the curved shape of the case are reduced, and various designs can be applied to the portable device.

In the manufacturing method of this embodiment, the larger the central angle range θ of the curved shape of the surface and the back of the casing, the better the effect. And, when installing the concave back of the other side casing on the convex surface of one casing, when the central angle range θ of the concave bottom of the other casing exceeds 180 degrees, when the casing is introduced into the Inserting from the direction intersecting the bending direction (that is, the side surface) when reaching the inner side of the other case can reduce the amount of elastic deformation due to external stress of either case required during assembly.

Furthermore, the portable device of the present invention is not limited to the above-mentioned illustrated examples, and various changes can be made without departing from the gist of the present invention. For example, as long as it has a curved shape, the range of the central angle of the shell structure may be smaller or larger than that of the embodiment. Furthermore, it is not necessary to bend the entire shell structure, but a part may be formed flat. Furthermore, a detachable connection member may be formed on the curved opening so that the opening can be closed. At least one cover member may be provided, but there may be two or more cover members as in the embodiment. Furthermore, the present invention is not limited to the arm-worn device as in the above-mentioned embodiment, and may be configured in various ways such as a headband, for example, as a device worn on the head.

Claims (18)

1. mount type electronic device is characterized in that having:

Be worn on the roughly c-shaped framework of annular or cross section on the user's body;

Display panel along the band shape of the side face of described framework configuration; And

Be used to drive the driving circuit of described display panel,

Described display panel and described driving circuit are separately positioned on the mutually different circuit substrate, the side face along described framework does not overlap the to each other each circuit substrate of configuration simultaneously, and perhaps described display panel and described driving circuit do not overlap the to each other respectively and be arranged on the circuit substrate and along the side face configuration of described framework.

2. mount type electronic device according to claim 1 is characterized in that, is being provided with on the circuit substrate of described driving circuit, and described driving circuit and a plurality of circuit that include power supply at least do not overlap the to each other configuration separately.

3. mount type electronic device according to claim 1 and 2 is characterized in that, described display panel and the circuit substrate that is provided with this display panel have pliability.

4. the manufacture method of a portable instrument, this portable instrument has:

Be worn on the roughly c-shaped framework of annular or cross section on the user's body;

Display panel along the band shape of the side face of described framework configuration; And

Be used to drive the driving circuit of described display panel,

It is characterized in that described framework constitutes by having along first housing of the surface configuration of the convex of predetermined direction bending and having along second housing of the inside shape of the concavity of described predetermined direction bending,

With described display panel and described driving circuit be separately positioned on the mutually different circuit substrate, the side face along described second housing does not overlap the to each other each circuit substrate of configuration simultaneously, perhaps described display panel and described driving circuit are not overlapped the to each other respectively and be arranged on the circuit substrate and along the side face configuration of described second housing

Under the state of aiming at bending direction, the surface of described first housing and the inside of described second housing are installed overlappingly, so that their driving fits directly or indirectly.

5. the manufacture method of a portable instrument, this portable instrument is installed overlappingly by having along first housing of the surface configuration of the convex of predetermined direction bending and having along second housing of the inside shape of the concavity of described predetermined direction bending, so that the inside of the surface of described first housing and described second housing forms aiming at driving fit directly or indirectly under the state of bending direction, it is characterized in that

Make described first housing on its bending direction, have elasticity,

Make described first housing distortion so that under the state that the curvature of its surface configuration becomes bigger, make described first housing the surface at least a portion directly or indirectly with the inside butt of described second housing, afterwards, by removing distortional stress, described first housing and described second housing are installed overlappingly at described first housing.

6. the manufacture method of portable instrument according to claim 5 is characterized in that, utilizes the single part that is made of same material to constitute described first housing.

7. according to the manufacture method of claim 5 or 6 described portable instruments, it is characterized in that stress application between the both ends of described first housing makes described first housing distortion.

8. the manufacture method of a portable instrument, this portable instrument is installed overlappingly by having along first housing of the surface configuration of the convex of predetermined direction bending and having along second housing of the inside shape of the concavity of described predetermined direction bending, so that the inside of the surface of described first housing and described second housing forms aiming at driving fit directly or indirectly under the state of bending direction, it is characterized in that

Make described second housing on its bending direction, have elasticity,

Make described second housing distortion so that under the state that the curvature of its surface configuration becomes littler, make described first housing the surface at least a portion directly or indirectly with the inside butt of described second housing, afterwards, by removing distortional stress, described first housing and described second housing are installed overlappingly at described second housing.

9. the manufacture method of portable instrument according to claim 8 is characterized in that, making described second housing is to possess the structure with flexual window component.

10. the manufacture method of portable instrument according to claim 9 is characterized in that, uses the single part that is made of same material to constitute described second housing.

11. the manufacture method of portable instrument according to claim 9, it is characterized in that, be independent of the described second housing ground and constitute described window component, be installed to described second housing on described first housing after, described window component is installed on described second housing.

12. the manufacture method of any described portable instrument according to Claim 8～11 is characterized in that, stress application between the both ends of described second housing and make described second housing distortion.

13. manufacture method according to any described portable instrument in the claim 5～12, it is characterized in that, installed under the state of cushion block on any one party in described first housing and described second housing, described first housing and described second housing have been installed overlappingly across described cushion block.

14. manufacture method according to any described portable instrument in the claim 5～12, it is characterized in that, under the state of the inside that cushion block has been installed to described second housing, so that the mode of the surface of described first housing and described cushion block butt is installed to described first housing on described second housing overlappingly.

15. manufacture method according to any described portable instrument in the claim 5～14, it is characterized in that, between described first housing and described second housing, dispose internal module, described first housing and described second housing are installed overlappingly, described internal module is accommodated between described first housing and described second housing.

16. the manufacture method of portable instrument according to claim 15 is characterized in that, described internal module has can be along the pliability of described predetermined direction bending.

17. portable instrument, it is characterized in that, have along first housing of the surface configuration of the convex of predetermined direction bending and have and install superimposedly along second housing of the inside shape of the concavity of described predetermined direction bending, so that the inside of the surface of described first housing and described second housing driving fit directly or indirectly under the state of aiming at bending direction

At least one side's housing in described first housing and described second housing has elasticity on this bending direction,

Described portable instrument is in the state that is subjected to stress on the direction of the mutual driving fit in the inside of the surface that makes described first housing and described second housing by means of the elastic force of described at least one side's housing.

18. portable instrument according to claim 17 is characterized in that, described first housing and described second housing are installed across cushion block.

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