WO2016032181A1

WO2016032181A1 - Bendable electronic device and fixing device to be coupled to electronic device

Info

Publication number: WO2016032181A1
Application number: PCT/KR2015/008815
Authority: WO
Inventors: 황창순; 김선종
Original assignee: 황창순; 김선종
Priority date: 2014-08-25
Filing date: 2015-08-24
Publication date: 2016-03-03
Also published as: KR101518259B1

Abstract

The present invention relates to a bendable electronic device and a fixing device to be coupled to the electronic device. The bendable electronic device, according to the present invention, comprises: a body made from a bendable material; a display unit provided in the body; a flexible circuit board provided inside the body; a bending adjustment unit for controlling the bending of the body by a first plate which maintains a flat form at room temperature, and by a second plate which maintains a bent state at a specific temperature or higher and has a larger elastic force than that of the first plate in a superelastic condition; and a fixing device coupled with the body so as to fix a bent state when the body is bent. Therefore, power consumption can be minimized by maintaining a bent state by means of a temporary power supply; a bent state and a flat state can be stably maintained despite a long-term use thereof; an electronic device can be quickly transformed from a bent state to a flat state; and a fixing device to be coupled to the electronic device can be mass-produced.

Description

Flexible electronic devices and fixing devices coupled to the electronic devices

The present invention relates to an electronic device capable of bending and a fixing device coupled to the electronic device. More particularly, the present invention relates to a bendable electronic device coupled to the electronic device and to maintain a bent state of the electronic device, and a fixing device coupled to the electronic device.

Most electronic devices are provided with a display unit to display images or texts. Examples of the electronic devices are portable devices, which can carry out voice and video calls, input and output information, data transmission and reception functions, and the like. There are portable terminals with one or more data storage functions.

As the functions are diversified, the portable terminal is equipped with complex functions such as taking a picture or a video, playing a music or video file, playing a game, receiving a broadcast, or wireless internet, and is implemented in the form of a comprehensive multimedia player. have.

In addition, new and various attempts have been applied to the portable terminal implemented in the form of a multimedia device in terms of hardware or software to implement complex functions. For example, a portable terminal is provided with a user interface environment for a user to search for or select a function easily and conveniently.

However, since the electronic device provided with the display unit maintains a flat state, in the case of a large-scale TV, the viewing angles of the center and both ends of the display unit are changed, thereby reducing the reality of the image represented on the display unit.

In order to solve this problem, the technology described in Korean Patent Laid-Open Publication No. 10-2011-0048640 as shown in FIGS. 1 and 2 has been developed, and the technical features of the body 20 and at least a portion of the flexible material The display unit 15 provided on the body 20 to display a screen and the actuator 80 provided inside the body 20 to selectively change the shape of the body as the electric signal is selectively provided to change the shape of the body. It is configured to include, the actuator 80 is characterized by consisting of a shape memory alloy that is alternating with the original shape and the modified shape in accordance with the temperature change.

However, such a conventional electronic device requires a continuous supply of power in order to maintain a curved state of the screen, which consumes a lot of power and causes a large heat generation. In addition, there is a problem that the circuit board or the display unit provided inside the electronic device may be damaged by heat and electromagnetic waves generated in the process of heating the actuator to control the shape memory alloy forming the actuator 80.

Accordingly, an object of the present invention is to provide a bendable electronic device capable of minimizing power consumption by maintaining a bent state by a temporary power supply and a fixing device coupled to the electronic device.

And another object of the present invention is to provide a bendable electronic device capable of maintaining a stable state and a flat state even if used for a long time and a fixing device coupled to the electronic device.

Another object of the present invention is to provide a bendable electronic device capable of quickly deforming the electronic device to a flat state and a fixing device coupled to the electronic device.

And an object of the present invention is to provide an electronic device capable of mass production and a fixing device coupled to the electronic device.

The object is a body made of a bending material; A display unit provided in the body; A flexible circuit board provided in the body; A bending control part for controlling the bending of the body by a first plate which maintains a flat shape at room temperature, and a second plate which maintains a bent state at a specific temperature or more and has a greater elastic force than the first plate in a superelastic state; ; Combined with the body is achieved by a flexible electronic device that includes a fixing device for fixing the curved state when the body is bent.

The fixing device includes an inner cover and an outer cover with teeth formed for mutual coupling; The inner cover and the outer cover may maintain the coupling in a bent state by the difference in radius of curvature.

It may further include a third plate that separates the inner cover and the outer cover by bending or expanding by the supply of power.

The fixing device includes an outer cover formed with a pair of teeth; A fixing member fixed between the teeth; And a shape memory spring connected to the fixing member, and the fixing member is fixed between the teeth after the movement of the fixing member by contraction or relaxation of the shape memory spring to fix the curved state of the electronic device.

The fixing device, the fixing member; An inner box; An outer box coupled to the outside of the inner box and having teeth formed to fix the fixing member; A third plate or second plate of a shape memory alloy provided between the inner box and the outer box and temporarily bent or expanded by supply of power to separate the outer box from the inner box to widen the gap between the teeth; It may include a shape memory spring.

The fixing device may further include a shock absorbing plate that absorbs the shock generated when the fixing member contacts the outer cover.

The electronic device receives an on-off of the bending by the bending control unit and a time for which the bending state is maintained by the user interface from the user, and supplies the power to the second plate based on the information input from the user. Can be controlled.

On the other hand, the outer cover is formed with a pair of teeth; A fixing member fixed between the teeth; And a shape memory spring connected to the fixing member, wherein the fixing member is fixed between the teeth after the movement of the fixing member by contraction or relaxation of the shape memory spring to fix the curved state of the electronic device. This object is also achieved by the fastening device that is engaged.

The fixing member may further include a shock absorbing plate for absorbing the shock generated when the fixing member contacts the outer cover.

In addition, the fixing member; An inner box; An outer box coupled to the outside of the inner box and having teeth formed to fix the fixing member; A third plate or second plate of a shape memory alloy provided between the inner box and the outer box and temporarily bent or expanded by supply of power to separate the outer box from the inner box to widen the gap between the teeth; This object is also achieved by a fastening device which is coupled to an electronic device comprising a shape memory spring.

The fixing device, the shape memory spring; And a first guide part coupled to a wire connected to the shape memory spring, and a second guide part mounted on the back cover of the electronic device to maintain the flat state when the electronic device is restored to a flat state in a curved state. .

On the other hand, the shape memory spring; A central axis formed vertically from a support supporting the electronic device; The apparatus further includes a force transmission panel positioned between the rear surface of the electronic device and the shape memory spring, wherein the shape memory spring is connected to the central axis and heated when the power is supplied, to the power transfer panel in the direction of the central axis. The object is also achieved by a fixing device coupled to the electronic device, characterized in that to maintain the curved state by pulling.

A compression coil spring provided between the central shaft and the force transmission panel; An inner box coupled to a rear surface of the central shaft; An outer box coupled to the outside of the inner box and having teeth formed to fix the holding member including the compression coil spring; Is provided between the inner box and the outer box and bent or expanded instantaneously by supply of power to separate the outer box from the inner box so that the fixing member passes between the teeth, the power supply is cut off The flexible plate may include a third plate or a second shape memory spring of a shape memory alloy which is flattened or relaxed to fix the curved state of the electronic device.

In addition, the body is made of a bending material; A display unit provided in the body; A flexible circuit board provided in the body; A fixed main body, a drill insertable into the fixed main body by a rotational movement, a drill main body coupled to the drill and movable to the fixed main body side, and a driving main body driving the drill main body, wherein power is supplied to the electronics. When the drill body is moved in the direction of the fixed body by the rotation of the drill contracts, when the supply of power to the electronic device is cut off, the drill is reversed by the elasticity of the electronic device to the electronic device By restoring to a flat state, the above object is also achieved by the electronic device capable of bending, characterized in that it comprises a bending control unit for controlling the bending of the body.

According to an electronic device capable of bending and a fixing device coupled to the electronic device according to the present invention, an object of the present invention is to provide a fixing device coupled to an electronic device capable of minimizing power consumption by maintaining a curved state by a temporary power supply. It is done.

In addition, according to the electronic device capable of bending and the fixing device coupled to the electronic device according to the present invention, it is possible to maintain a stable state and a flat state even when used for a long time.

In addition, according to the bendable electronic device and the fixing device coupled to the electronic device according to the present invention, it is possible to quickly deform the electronic device to a flat state in a curved state.

And according to the electronic device capable of bending and the fixing device coupled to the electronic device according to the present invention, mass production of the fixing device coupled to the electronic device is possible.

1 is a conceptual diagram showing an electronic device capable of bending according to the present invention,

2 is a view showing the configuration of the bending control unit of the electronic device capable of bending according to an embodiment of the present invention,

3 is a conceptual diagram showing the configuration of the bending control unit of the electronic device capable of bending according to an embodiment of the present invention,

4 is a view showing the configuration of the electronic device capable of bending in accordance with another embodiment of the present invention,

5 is a cross-sectional view showing a bending control unit of the electronic device capable of bending according to another embodiment of the present invention,

6 is a view showing a bent state of the electronic device capable of bending according to another embodiment of the present invention,

7 is a conceptual diagram of an electronic device capable of bending according to another embodiment of the present invention.

8 is a view showing the outer cover of the fixing device coupled to the electronic device capable of bending in accordance with the present invention,

9 is a view showing the inner cover of the fixing device coupled to the electronic device capable of bending in accordance with the present invention,

10 is a cross-sectional view of a fixing device coupled to an electronic device capable of bending in accordance with the present invention.

11 is an enlarged cross-sectional view of a fixing device coupled to an electronic device capable of bending according to the present invention;

12 is a cross-sectional view showing a bent state of the fixing device coupled to the bendable electronic device according to the present invention,

13 is a cross-sectional view showing the configuration of an electronic device and a fixing device according to a second embodiment of the present invention;

14 is an enlarged view illustrating a spring box installed in an electronic device according to a second embodiment of the present invention.

FIG. 15 is a view for explaining a process of bending an electronic device and a process of fixing the bent electronic device according to the second embodiment of the present invention.

16 is a view showing the configuration of the bending control unit of the electronic device according to the third embodiment of the present invention,

FIG. 17 is a diagram illustrating a process of bending an electronic device and a process of fixing a bent electronic device according to a third embodiment of the present invention.

18A and 18B are diagrams for describing a process of bending an electronic device and a process of fixing a bent electronic device according to a fourth embodiment of the present invention.

19A and 19B are diagrams for describing a process of bending an electronic device and a process of fixing a bent electronic device according to a fifth embodiment of the present invention.

20 is a cross-sectional view showing a side of a planar state of an electronic device according to the present invention;

21 is a cross-sectional view showing a side of the electronic device in a bent state of the electronic device according to the present invention;

22 is a side view showing each step of fixing the bent state of the panel by the fixing device according to the present invention,

FIG. 23 is a side view illustrating each step of restoring the panel of the electronic device to a planar state in a curved state of the present invention.

24 is a side view showing the top and bottom of the fixing device according to the invention,

25 is a side view illustrating a state in which a panel is bent by a fixing device according to the present invention;

26 is a side view showing each step of fixing the bent state of the panel by the fixing device according to the present invention,

27 is a side view showing each step of restoring the panel of the electronic device to a planar state in a curved state of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the electronic device capable of bending and a fixing device coupled to the electronic device.

1 is a conceptual diagram illustrating an electronic device capable of bending according to the present invention. As shown in FIG. 1, the electronic device capable of bending according to the present invention includes a body 100, a display unit 200 provided in the body 100, and a flexible circuit board provided in the body 100. 300 and the bending control unit 400 provided in the body 100.

Here, the body 100 is made of a flexible material that can be bent in whole or in part, the display unit 200 is also made of good flexible OLED (OLED, Organic Light Emitting Diodes), the surface of the OLED A flexible protective cover (not shown) is provided and can be easily bent at a specific angle by the bending control unit 400.

2 is a view showing the configuration of the bending control unit of the electronic device capable of bending according to an embodiment of the present invention. As shown in (a) of FIG. 2, the bending control unit 400 according to the present invention may be formed at both edges along the longitudinal direction of the body 100, and as shown in FIG. Although it may be formed to cover the whole of the body 100, the bending control unit 400 may be formed in the interior of the body 100, although not shown in the figure, may be formed on the surface portion of the body 100 Alternatively, the rear surface of the body 100 may be installed on both sides of the inner surface of the body cover (not shown), or may be installed on the inner surface of the protective case (not shown) for protecting the body 100. . Of course, the body cover (not shown) and the protective case (not shown) are also preferably made of a flexible material that can be bent in whole or in part.

In addition, the bending control unit 400 according to the present invention is a first plate 410 made of a shape memory alloy, a high elastic metal, a polymer or a polymer composite material and a second plate made of a shape memory alloy as shown in FIG. 420, and the first plate 410 and the second plate 420 may be formed to store different shapes.

Here, the first plate 410 includes a shape memory alloy, a high elastic metal, a polymer or a polymer composite material to maintain a flat state at room temperature, and the second plate 420 stores a curved state at a specific temperature or more. Shape memory alloys.

That is, the shape memory alloy included in the bending control unit 400 according to the present invention has a superelasticity to return to the shape memorized at a specific temperature or more by using titanium (Ti) and nickel (Ni) as the main element. Of course, the shape memory alloy of the present invention is not limited to the above-described Nitinol, but is classified into nickel (Ni), copper (Cu), iron (Fe), and the like, and specifically, zinc (Zn) and aluminum. Alloys such as Cu-Zn-Ni, Cu-Zn-Al, Cu-Al-Ni, Ag-Ni, Au-Cd that combine metals such as (Al), gold (Au) and silver (Ag) can be used. have.

Thus, when the first plate 410 is a shape alloy, in order to have superelasticity at room temperature, the temperature at which superelasticity is generated may be appropriately adjusted according to the environment used. For example, when used in summer in Korea can be set to 5 ~ 10 ℃. In addition, since the second plate 420 maintains a flexible state at room temperature and has a superelasticity when a specific temperature or more is set, the second plate 420 may be stably used even in hot summer in Korea in the first plate. Like 410, the temperature at which superelasticity occurs can be adjusted.

That is, the bending control unit 400 according to the present invention, since the first plate 410 is a superelastic state and the second plate 420 is a flexible state at room temperature, the bending control by the superelasticity of the first plate 410. The unit 400 may maintain a flat state to maintain a flat state of the electronic device. At this time, when the temperature of the second plate 420 is higher than the set temperature, the second plate 420 becomes superelastic, and accordingly, the force due to the superelasticity of the first plate 410 and the second plate 420 are increased. Since the force of the second plate 420 is large among the forces due to the hyperelasticity of), the shape stored by the second plate 420 can be maintained.

4 is a view showing the configuration of the bendable electronic device according to another embodiment of the present invention, Figure 5 is a cross-sectional view showing the bending control unit of the bendable electronic device according to another embodiment of the present invention. . As shown in FIGS. 4 and 5, the bendable electronic device according to another embodiment of the present invention returns to a shape in which the bending control part 400c provided in the body 100 is stored under a specific condition. A shape memory spring 450 made of a thin shape memory alloy, and a wire 454 provided at both ends of the shape memory spring 450.

Here, one end of the wire 454 is connected to both ends of the shape memory spring 450, the other end is connected to the inner both sides of the body 100.

On the other hand, the shape memory spring 450 according to the present invention is using a nitinol (Ti) and Ni (Ni) as the main element, in the usual state to maintain a flexible state in a shape stored above a certain temperature It has the property of returning superelasticity.

Of course, the shape memory alloy of the present invention is not limited to the above-described Nitinol, but is classified into nickel (Ni), copper (Cu), iron (Fe), and the like, and specifically, zinc (Zn) and aluminum. Alloys such as Cu-Zn-Ni, Cu-Zn-Al, Cu-Al-Ni, Ag-Ni, Au-Cd that combine metals such as (Al), gold (Au) and silver (Ag) can be used. have.

As a result, the shape memory spring 450 maintains a flexible state at room temperature, and the shape memory alloy is stored when the temperature is set to a specific temperature (which can be set according to the environment used. Can be returned to the spring form.

That is, when the bending control part 400c including the shape memory spring 450 and the wire 454 is installed inside the body 100, the wire 454 becomes a shape that the shape memory spring 450 stores. Is formed to a short length so as not to close the inner side surfaces of the body 100, the shape memory spring 450 is deformed to both sides when the shape memory spring 450 maintains a flexible state at room temperature of the wire 454 By connecting the end portion to both sides of the inside of the body 100, since the shape memory spring 450 maintains a flexible state at room temperature, the shape memory spring 450 is kept extended to both sides by the elastic force of the body 100. If the set temperature is 50 ° C. or more, as shown in FIG. 6, the superelasticity is expressed and returned to the original shape. Therefore, the length of the shape memory spring 450 is reduced and the wire 454 is pulled accordingly. The electronic apparatus of the present invention can be bent.

On the other hand, the outer side of the shape memory spring 450 may be further provided with a spring box 460 in which the shape memory spring 450 is installed, the spring box 460 is fixed to the interior of the body 100, the shape The memory spring 450 is prevented from random movement so that the electronic device of the present invention bends to the intended shape.

At this time, the wires 454 connected to both sides of the spring 450 are installed to penetrate both sides of the spring box 460, the shielding layer 462 may be formed on the surface of the spring box 460, shielding The layer 462 may prevent heat and electromagnetic waves generated by the heat generating layer 452 from propagating to the outside, thereby preventing damage to the flexible circuit board 300 or the display unit 200.

In this case, the shielding layer 462 may be formed on the entire surface of the spring box 460, or may be formed only on one side of the flexible circuit board 300 and the display unit 20.

Meanwhile, as shown in FIG. 7, the warp control unit 400d, which is provided inside the body 100 forming the electronic device, is stored under a specific condition as shown in FIG. 7. Shape memory spring 450 made of a shape memory alloy to return to the shape, the wire 454 provided at both ends of the shape memory spring 450, the spring box 460 is provided with the shape memory spring 450 And a spring box 460 is provided at the inner center, and may further include a cover box 470 connected at both ends of the wire 454 to both sides.

Here, since the rear surface of the cover box 470 is formed thicker than the front surface so that the elastic force is strong, when the shape memory spring 450 is at a specific temperature or more to become a superelastic state, when the wire 454 is pulled, the elastic force is weak. By bending the central portion of the front surface into a concave shape, the bending direction can be adjusted.

Hereinafter, a fixing device coupled to an electronic device capable of bending according to the present invention will be described with reference to FIGS. 8 and 9. The fixing device coupled to the electronic device capable of bending according to the present invention is coupled to the body of the electronic device to fix the curved state when the body is bent. That is, even if only a temporary power is supplied to the bending control unit for adjusting the bending of the body, the fixing device can maintain the bent state, it is possible to minimize the power consumption required to implement the bending of the electronic device.

To this end, the fixing device according to the present invention may include an inner cover of elasticity having a property of always keeping a plane, and an outer cover having a property of keeping a plane always of the same. 8 is a view showing an outer cover of the fixing device coupled to the bendable electronic device according to the present invention, Figure 9 is a view showing the inner cover of the fixing device coupled to the bendable electronic device according to the present invention. to be.

As shown in FIG. 8, the outer cover 520 of the fixing device 500 according to the present invention has a sawtooth coupling portion 490 formed on one surface thereof and is coupled to the inner cover 510, and carbon fiber reinforced plastic. It is preferable that the elastic composite is made of a carbon composite material.

And, as shown in Figure 9, the inner cover 510 of the fixing device 500 is coupled to the electronic device according to the present invention is a sawtooth coupling portion 490 is formed on one surface is coupled to the outer cover 520 The third plate 415 is formed to deform the outer cover to a flat state in a curved state. Inner cover 510 according to the present invention is also preferably made of a good carbon composite material such as carbon fiber reinforced plastic.

Specifically, the third plate 415 according to the present invention is temporarily supplied with power in a planar state and bent into a curved shape previously stored by a momentary superelastic force. At this time, the outer cover 520 coupled to the inner cover 510 is pushed to deform the outer cover 520 from a curved state to a flat state. Thus, the coupling between the inner cover 510 and the outer cover 520 is released, and at the same time, the inner cover 510 and the electronics are also deformed into a planar state, and the power supplied to the third plate 415 is cut off while the third The plate 415 is in a flexible state and is likewise deformed into a planar state between the outer cover 520 and the inner cover 510. Thus, even when power is not supplied to the second plate 420 while the electronic device according to the present invention is bent, the bent state is maintained by a separate fixing device 500 coupled to the electronic device, thereby maintaining the power of the electronic device. Consumption can be minimized.

When the electronic device according to the present invention is implemented as a mobile phone, when the voice call is started, the second plate 420 is deformed into a superelastic state by heat generation and is bent while being supplied with power. Even if this is blocked, the state bent by the fixing device 500 is maintained. When the call is terminated, the coupling of the fixing device 500 is released by the third plate 415 to deform the electronic device into a flat state again. As a result, power consumption can be minimized by maintaining the curved state by the temporary power supply, and it can be quickly deformed from the curved state to the flat state.

At this time, the electronic device according to the present invention may provide a user interface for maintaining the bent state to the user and receive on / off of the bend and a time for which the bent state is maintained, based on the information input from the user. By controlling the supply of power to the second plate 420 can improve the user's convenience.

10 is a cross-sectional view of a fixing device showing a state in which the outer cover 520 and the inner cover 510 are coupled according to the present invention. As shown in FIG. 10, the third plate 415 according to the present invention may be provided to the outside of the inner cover 510, that is, toward the outer cover 520.

11 is an enlarged cross-sectional view of a fixing device showing a state in which the outer cover 520 and the inner cover 510 are coupled according to the present invention. As shown in FIG. 11, when the inner cover 510 and the outer cover 520 according to the present invention are bent, the position of the teeth coupled by the difference in the radius of curvature as shown in FIG. 12 is changed, and the inner cover is changed. Between the 510 and one end of the outer cover 520, a separate connection member 492 is included to maintain the coupling in a curved state.

13 is a cross-sectional view showing the configuration of the electronic device and the fixing device according to the second embodiment of the present invention. As shown in FIG. 13, the bending control unit 400 of the electronic device according to the second embodiment of the present invention may be implemented in a spring box including a shape memory spring 450 and a fixing device 500. The outer cover 520 is coupled to the spring box. The teeth 524 of the outer cover 520 may be inserted into the spring box through the bottom hole of the spring box, and the spring box and the outer cover 520 may be connected by the connecting member 492 of the elastic material.

When power is supplied to the electronic device 100 according to the present invention, the power is temporarily supplied to the third plate 415 to bend in a superelastic state to separate the spring box and the outer cover 520, and at the same time adjust the warpage. As the nitinol spring included in the portion 400 contracts, the fixing portion 530 is pulled toward the first tooth 524. At this time, the electronic device 100 is bent as much as the distance that is contracted. When the fixing part 530 spans the first tooth 524, the power of the third plate 415 is cut off, and then again by the connecting member 492. While the spring box and the outer cover 520 are in close contact with each other, the third plate 415 is flat. 14 is an enlarged view illustrating a spring box 460 installed in an electronic device according to a second embodiment of the present invention. As shown in FIG. 14, the fixing part 530 according to the present invention has a position that spans between the teeth 524 according to the contraction or relaxation of the shape memory spring 450, and the shape memory spring 450. The electronic device 100 according to the present invention is maintained in a bent state by the fixing part 530 that spans the spring box 460 and the teeth 524 of the outer cover 520 even when the power is cut off. Can be.

When the electronic device 100 according to the present invention is bent and the supply of power to the electronic device is cut off, the spring box 460 and the outer cover are instantaneously supplied with power only to the third plate 415 and bent in a superelastic state. The fixing part 530 is moved to the shock absorbing plate 522 of the spring box 460 by the first plate and the back cover of the electronic device which are to be separated and simultaneously return to the flat state. As a result, all power of the electronic device 100 according to the present invention may be cut off and the electronic device may remain flat.

Here, the degree of contraction of the shape memory spring 450 may be adjusted by adjusting the time when the voltage and the current supplied to the shape memory spring 450 are supplied, whereby the teeth installed in the spring box and the outer cover 520 ( By moving the fixing part 530 to different positions of the 524 can adjust the bending angle of the electronic device. 15 is a view showing a state in which the electronic device according to the invention bent by the spring box and the outer cover according to the present invention.

16 is a view showing the configuration of the bending control unit of the electronic device according to the third embodiment of the present invention. As shown in FIG. 16, the bending control unit of the electronic device according to the third embodiment of the present invention is capable of contraction and relaxation by a bolt and nut system coupled with a motor and a hydraulic pipe. That is, the forward, backward and moving distance of the bolt can be adjusted according to the rotation direction and the rotation speed of the motor.

Specifically, the bending control unit 700 of the electronic device according to the third embodiment of the present invention includes a fixed body 710, a drill 720, a drill body 730, and a driving body 740. . Through this, when power is supplied to the electronic device 100 according to the present invention, the drill 720 rotates while the drill body 730 moves in the direction of the fixed body 740, and the contracted distance is reduced. As long as the electronics are bent at a certain angle. The fixed body 710 and the drill body 730 according to the present invention may be included in the drive body 740 for driving the bending control unit 400, like the nitinol spring box 460, the number of revolutions of the drill 720 According to the bending angle of the electronic device can be adjusted. On the other hand, when the supply of power to the electronic device 100 according to the present invention is cut off, the drill 720 may be reversely rotated to return the electronic device to a flat state. 17 is a view showing a state in which the electronic device is bent by the bending control unit of the electronic device according to the third embodiment of the present invention. The bending control unit of the electronic device according to the third embodiment of the present invention has the advantage of being able to maintain a curved state without a separate fixing device and reduce power consumption.

Hereinafter, a process of bending the electronic device and a process of fixing the bent electronic device according to the fourth embodiment of the present invention will be described with reference to FIGS. 18A and 18B. As shown in Figure 18a, the electronic device according to the fourth embodiment of the present invention includes a guide portion 600 for guiding the bending of the bending control unit 400. Guide portion 600 according to the present invention is attached to the front side of the first guide portion 610 and the first plate 410, the first plate 410 included in the bending control unit 400, The second guide part 620 is included.

The first guide part 610 may include a plurality of guides 612 having different thicknesses and a wire connected to the shape memory spring 450. Here, the plurality of guides 612 are each connected to the central shape memory spring 450 by a wire. The guide 612 closest to the shape memory spring 450 may naturally bend without being connected to the shape memory spring 450 by a wire, and a guide close to the shape memory spring 450 among the plurality of guides 612. Consumes the most force as it contracts. Since the first guide part 610 according to the present invention is not bent at a predetermined angle or more, the electronic device 100 may be controlled to be bent at a predetermined angle.

The second guide part 620 is mounted on the back cover and maintains a flat state when the electronic device is restored to a flat state in a curved state. On the other hand, the spring box is preferably located in the center of the back cover (B) in which the fixing cradle of the electronic device is mounted and the second guide part 620 according to the present invention is mounted. When the electronic device according to the present invention is restored to a flat state through this, since the elasticity of the first plate 410 and the back cover B is large, the function of being restored to the curved and flat state even by one shape memory spring 450 This can be done sufficiently.

When the electronic device according to the present invention is supplied with power, the power is supplied to the third plate 415 of the bending control unit 400 mounted on the second guide part 620 to be bent momentarily, whereby the third plate 415 moves the fixing part 530 while pushing the connection member 492. As a result, the fixing device 500 that maintains the flat state is momentarily separated and released. At the same time, power is supplied to the shape memory spring 450 of the first guide part 610 to be contracted, and the bending control part 400 is bent while the wire connected to the shape memory spring 450 is pulled. When the fixing part 530 of the fixing device 500 enters the teeth 524, the power supplied to the shape memory spring 450 is cut off while maintaining the curved state as shown in FIG. 18B.

On the other hand, the electronic device according to the present invention, when the power supply is cut off, the power is supplied to the third plate 415 of the driving device mounted on the first guide portion 610 is momentarily bent to push the connection member 492 The fixing part 530 is moved by the force of the first plate 410 and the back cover B to return to the flat state. At this time, power is supplied to the shape memory spring 450 connected to the second guide part 620 at the last moment of being flattened by the first plate 410 and the back cover B, and the second guide is contracted. The power supplied to the shape memory spring 450 is cut off immediately because the flat state is fixed while pulling the part 620 and fixed by the fixing device 500 provided in the nitinol box.

19A and 19B are perspective views illustrating a fixing device for fixing an electronic device and a curved electronic device according to a fifth embodiment of the present invention. 19A and 19B, the electronic device according to the fifth embodiment of the present invention is fixed by two fixed shafts in which the panel P is located on both sides of the central axis A, and the central axis A At the rear end of the bending control unit 400 is coupled. At this time, one side of the shape memory spring 450 and the compression coil spring 480 included in the bending control unit 400 is coupled to the back cover (B) of the electronic device 100 through the force transmission panel (P). To maintain a flat state. Here, the other side of the shape memory spring 450 and the compression coil spring 480 according to the present invention may be combined with the central axis (A) provided on the support of the electronic device (100).

With this structure, when the shape memory spring 450 maintains a flexible state at room temperature as shown in FIG. 19A and is supplied with power, the shape memory spring 450 is heated as shown in FIG. 19B while the central axis A is heated. The electronic device 100 including the display unit 200 is deformed by pulling the panel P in the direction of. When the supply of power to the electronic device 100 is cut off, the shape memory spring 450 is in a flexible state and is deformed into a flat state again by the force of the compression coil spring 480 and the back cover B.

As a result, a flexible structure having a reliability capable of repeatedly implementing a curved state and a flat state with respect to the electronic device by a simple structure can be implemented, and a bending control unit including a shape memory spring 450 and a compression coil spring 480. 400 is separable, suitable for mass production.

20 and 21 are cross-sectional views illustrating side surfaces of electronic devices in a planar state and a curved state, respectively. As shown in FIG. 20, the panel P is fixed by the fixed shaft A in the planar state, and when the power is supplied, the outer box is bent by the bending of the third plate 415 as shown in FIG. 21. As the height of the 520 increases, the fixing rod F, which is an embodiment of the fixing member, enters between the gaps of the teeth 524, and the gap of the teeth 524 is restored by the relaxation of the third plate 415. Fix the curved state of (P). On the contrary, even when the electronic device is restored to a planar state in a curved state, power is supplied to the third plate 415 temporarily and the gap between the teeth 524 is widened so that the fixing bar F moves to the panel P side. The device may be deformed into a planar state. FIG. 22 is a side view illustrating each step of fixing the curved state of the panel P by the bending force of the third plate 415 and the shape memory spring 450 contracting elastically. 23 is a side view illustrating each step of restoring the panel P to a planar state by the bending of the third plate 415 and the pushing force of the compression coil spring 480.

Meanwhile, another second shape memory spring 425 is positioned between the outer box and the inner box in place of the third plate 415 according to the present invention, thereby increasing the distance between the teeth. 24 is a side view illustrating a state in which the second shape memory spring 425 is connected to the top and bottom of the fixing device 500 instead of the third plate 415, and the shape memory spring 450 to bend the electronic device. When the power is supplied to the second shape memory spring 425 is momentarily expanded by the super elastic force to pull the panel (P) toward the central axis (A) to increase the height of the outer box 520 of the fixing device When the fixing rod F, which is an embodiment of the fixing member, enters between the teeth 524 and the supply of power to the shape memory spring 450 is interrupted, as shown in FIG. 25, the instantaneous expansion of the second shape memory spring 425 is illustrated. As a result, the spacing of the teeth 524 is restored to fix the curved state of the panel P. FIG. FIG. 26 is a side view illustrating each step of the fixing device fixing the bent state of the panel P by the momentary expansion of the second shape memory spring 425, and FIG. 27 is the moment of the second shape memory spring 425. It is a side view which shows each step of restoring to the planar state from the state which the panel P bent by expansion.

As mentioned above, the present invention has been described in detail through preferred embodiments, but the present invention is not limited thereto and may be variously implemented within the scope of the claims.

Claims

A body made of a bent material;

A display unit provided in the body;

A flexible circuit board provided in the body;

A bending control part for controlling the bending of the body by a first plate which maintains a flat shape at room temperature, and a second plate which maintains a bent state at a specific temperature or more and has a greater elastic force than the first plate in a superelastic state; ;

Combination of the electronic device with the body, characterized in that it comprises a fixing device for fixing the bent state when the body is bent.
The method of claim 1,

The fixing device,

An inner cover and an outer cover, wherein the teeth are formed for mutual coupling;

The inner cover and the outer cover is a bendable electronic device, characterized in that to maintain the coupling in a bent state by the difference in radius of curvature.
The method of claim 2,

And a third plate separating the inner cover and the outer cover by bending or expanding by supply of power.
The method of claim 1,

The fixing device,

An outer cover having a pair of teeth formed thereon;

A fixing member fixed between the teeth;

It includes a shape memory spring connected to the fixing member,

Flexible electronic device characterized in that the fixing member is fixed between the teeth after the movement by the contraction or relaxation of the shape memory spring to fix the bent state of the electronic device.
The method of claim 1,

The fixing device,

A fixing member;

An inner box;

An outer box coupled to the outside of the inner box and having teeth formed to fix the fixing member;

A third plate or second plate of a shape memory alloy provided between the inner box and the outer box and temporarily bent or expanded by supply of power to separate the outer box from the inner box to widen the gap between the teeth; Flexible electronic device comprising a shape memory spring.
The method of claim 5,

The fixing device,

And a shock absorbing plate for absorbing shock generated when the fixing member contacts the outer cover.
The method of claim 1,

The electronic device receives an on-off of the bending by the bending control unit and a time for which the bending state is maintained by the user interface from the user, and supplies the power to the second plate based on the information input from the user. Flexible electronic device, characterized in that for controlling.
An outer cover having a pair of teeth formed thereon;

A fixing member fixed between the teeth;

It includes a shape memory spring connected to the fixing member,

Fixing device coupled to the electronic device, characterized in that the fixing member is fixed between the teeth after the movement by the contraction or relaxation of the shape memory spring to fix the bent state of the electronic device.
The method of claim 8,

And a shock absorbing plate for absorbing the shock generated when the fixing member contacts the outer cover.
A fixing member;

An inner box;

An outer box coupled to the outside of the inner box and having teeth formed to fix the fixing member;

A third plate or second plate of a shape memory alloy provided between the inner box and the outer box and temporarily bent or expanded by supply of power to separate the outer box from the inner box to widen the gap between the teeth; Fixing device coupled to the electronic device including a shape memory spring.
The method of claim 10,

The fixing device,

A shape memory spring;

A first guide part coupled to a wire connected to the shape memory spring;

And a second guide part mounted on a back cover of the electronic device to maintain the flat state when the electronic device is restored to a flat state in a curved state.
A shape memory spring;

A central axis formed vertically from a support supporting the electronic device;

Further comprising a force transmission panel located between the back of the electronic device and the shape memory spring,

The shape memory spring is connected to the central axis and fixed when coupled to the electronic device, characterized in that the power is maintained when the power panel is pulled in the direction of the central axis to maintain the bending state when the power is supplied.
The method of claim 12,

A compression coil spring provided between the central shaft and the force transmission panel;

An inner box coupled to a rear surface of the central shaft;

An outer box coupled to the outside of the inner box and having teeth formed to fix the holding member including the compression coil spring;

Is provided between the inner box and the outer box and bent or expanded instantaneously by supply of power to separate the outer box from the inner box so that the fixing member passes between the teeth, the power supply is cut off A fixing device coupled to an electronic device including a third plate or a second shape memory spring of a shape memory alloy which becomes flexible and flattens or relaxes to fix a curved state of the electronic device.
A body made of a bent material;

A display unit provided in the body;

A flexible circuit board provided in the body;

A fixed main body, a drill insertable into the fixed main body by a rotational movement, a drill main body coupled to the drill and movable to the fixed main body side, and a driving main body driving the drill main body, wherein power is supplied to the electronics. When the drill body is moved in the direction of the fixed body by the rotation of the drill contracts, when the supply of power to the electronic device is cut off, the drill is reversed by the elasticity of the electronic device to the electronic device By restoring to a flat state, the electronic device capable of bending, comprising a bending control unit for controlling the bending of the body