WO2020214002A1

WO2020214002A1 - Foldable smartphone

Info

Publication number: WO2020214002A1
Application number: PCT/KR2020/005191
Authority: WO
Inventors: 박철
Original assignee: 박철
Priority date: 2019-04-18
Filing date: 2020-04-17
Publication date: 2020-10-22
Also published as: KR20200122479A

Abstract

The present invention relates to a foldable smartphone which is manufactured to have a structure that can be folded or unfolded such that a screen can be stretched, wherein the foldable smartphone has a structure for solving the problem of a flexible display getting wrinkled during the process of being folded or unfolded, and thus allows the flexible display to move according to the change in length when the smartphone is folded or unfolded. In addition, the smartphone is a foldable smartphone having a structure in which the screen can be stretched in the longitudinal direction.

Description

Foldable foldable smartphone

The present invention relates to a foldable smart phone manufactured using a flexible display, a tablet, or an electronic device including a notebook, and in particular, a foldable smart phone that is a foldable smart phone ( Foldable Smartphone), and moreover, a stretchable smartphone that can be folded or unfolded.

When using an OLED display made of a polyimide film as a substrate, it is possible to manufacture electronic devices such as foldable smartphones, tablets, and notebooks.

Therefore, the area can be reduced to facilitate portability.

The present invention relates particularly to a foldable smartphone among foldable electronic devices, and relates to solving the problem of wrinkles or marks left on the foldable portion when folding or unfolding the foldable smartphone.

A change in the area of the display portion occurs when the smartphone is opened and folded, and more precisely, a length change occurs in the lengthwise direction in which the smartphone is folded or unfolded, resulting in problems such as wrinkles.

In particular, this problem occurs largely in a foldable smartphone with an outfold structure that is folded with the display facing outward.

To this end, a technology and structure that solves the problem of increasing or decreasing the area of the display portion when folding or unfolding a foldable smartphone is needed.

In addition, when the smartphone is folded or unfolded, it is necessary to adjust the display screen by calculating the change in the length direction of the display portion in the folding direction.

In addition, it is necessary to solve the limitation in increasing the size of the screen with only the folding function.

According to a preferred embodiment of the present invention for achieving the objects of the present invention described above, in a foldable smartphone which is a foldable smartphone equipped with a flexible display, one side of the flexible display is on one side of the main body of the smartphone. It is bonded and fixed, and the flexible display from the part where the body is bent other than the fixed part of the flexible display is not adhesively fixed to the main body of the smartphone, and the end of the non-adhesive part of the flexible display body is attached to the spring. It is a connected structure, and the other side of the spring is fixed to the main body of the smartphone.

Among foldable smartphones, especially the out-fold type smartphone, in which the display is folded outward, increases in length in the folded direction when folded.

Therefore, as the length increases, the length of the display must also increase, but since the flexible display uses a polyimide material as a substrate, there is a limit to the length of the display.

Accordingly, in the present invention, the flexible display is not fixed to the main body of the smartphone, but is connected with a spring, so that when the foldable smartphone is folded, the spring connected to the flexible display increases and the length of the extension is corrected.

In the present invention, if the flexible display is not adhered to the main body of the smartphone, a separation occurs between the flexible display and the main body of the smartphone, so that when the flexible display is pressed, the flexible display may be pressed as much as the distance apart.

In order to solve this problem, in the present invention, a magnetization material that functions as a magnet is coated or attached to the surface of the body of the flexible display and the smartphone, respectively, on a part that is not bonded between the flexible display and the main body of the smartphone. It is to pull by magnetic force).

As a magnetizing material, there may be a method of coating powdery ferrite powder on one side of the flexible display and one side of the smartphone body by using a polymer adhesive, and magnetizing each other so that pulling forces act, or nickel or cobalt. It is a metal that can be magnetized such as, or a thin film of a metal compound is coated with a method such as sputtering. Alternatively, it is made in the form of a metal film and attached to one side of the flexible display and one side of the smartphone body, and it is magnetized so that the force to pull each other acts, or a structure coated with ferrite powder on one side and a metal film attached to the magnet on the other side. By using magnetic forces of various structures such as attaching a device, a pulling force acts between the flexible display and the smartphone body, so that separation does not occur.

As another structure, electrostatic force may be used to cause a pulling force between the flexible display and the smartphone body to act in a state where the flexible display and the smartphone body are not bonded to each other.

Electrodes are formed on the part of the flexible display facing the main body of the smartphone, and electrodes are also formed on the main body of the smartphone, and an insulating layer is formed between the electrodes of the flexible display and the electrodes of the smartphone body. When the power supply of the anode and the cathode is connected, a pulling force is formed, and when electricity in the same direction is applied, a pushing force is generated.

Therefore, by using electrostatic force, when the smartphone is opened, a pulling force is generated between the flexible display and the main body of the smartphone by connecting the power opposite to each electrode so that there is no separation. When the smartphone is bent, each By applying power in the same direction to the electrodes, a pushing force is generated between the flexible display and the main body of the smartphone, thereby minimizing the frictional force, allowing the flexible display to slide easily on the part facing the main body of the smartphone.

Another advantage of the foldable smartphone by the spring structure in the structure of the present invention is that it is possible to calculate the area exposed to the outside of the flexible display.

This can have the effect of seeing two screens by two or more people from both sides when the foldable smartphone is bent at a certain angle.

As an example, if the foldable smartphone's bent angle is bent to about 60 degrees, you can see the display from both sides.

If the diameter of the bent part of the foldable smartphone is 10mm, when it is bent outward by 60 degrees, the length of the foldable smartphone is 3.14 X 10mm X (60/360), which increases by 5.2mm.

Depending on the hinge structure of the foldable smartphone, there may be a difference in the bending angle and the elongated length.

Therefore, the display can be viewed from the other side by calculating the display length as much as the exposed portion of the flexible display and making the screen appear.

Various methods can be used to measure the angle at which the foldable smartphone is bent to be converted into an electrical signal.

The optical measurement method is to place the LED and the photodiode apart, then rotate the slit that rotates with the hinge of the smartphone between the LED and the photodiode, and calculate the number of slits that occur while rotating. One angle can be calculated.

Alternatively, a circular plate whose transmittance is gradually changed between the LED and the photodiode is rotated with a hinge, and the rotation angle is calculated by comparing the amount of light measured by the photodiode to the amount of light of the LED.

Alternatively, by using a magnetic sensor such as a Hall sensor, a magnet line is placed at a right angle to a concentric circle on a circular plate that rotates like a hinge, and the rotation angle can be calculated by calculating the signal coming into the magnet sensor according to the rotation.

Or, by using an electrical resistor to detect the change in the magnitude of the electrical resistance along with the hinge of the smartphone to calculate the rotation angle, or by installing an electrical resistor on the part that extends by a spring, it detects the change in electrical resistance according to the degree of extension of the spring. You can calculate the part where the display is exposed.

The advantage of being able to see the screen of the bent part while calculating the angle in this way is applied when shooting with a camera as well as when viewing the screen from both sides.

In general, when taking a picture with a smartphone, the person taking the picture while checking the video on the camera, but the person who is taking the picture cannot confirm himself.

In the structure of the present invention, when shooting with a camera when the smartphone is completely folded or partially folded, the person who shoots takes a picture while checking the image of the camera on the screen opposite the camera, and the person taking the picture is in the same direction as the camera. You can shoot while checking yourself on the screen in.

Therefore, it is important to calculate the portion where the screen of the flexible display is exposed to the opposite side according to the present invention.

In addition, if the camera is covered by the flexible display when the foldable smartphone is unfolded, a hole in the camera location can be made to expose the camera in a portion of the display that is pulled out when the foldable smartphone is folded.

The core of the present invention is a structure in which the flexible display appears outward as much as an area that increases while being bent when the foldable smartphone is bent. When unfolded, it is a structure that is pulled to the back or inside of the smartphone as much as the reduced area.

Therefore, it is possible to pull the structure pulled by the spring in a linear direction, and pull the structure to be wound while rotating.

The type of spring can also be made of metal or plastic.

In addition, it is possible to use a material having elasticity such as rubber, not a spring.

In addition, the display can be wound or unwound using a miniature electric motor.

In the structure of the present invention, it may be difficult to make a general 16:9 screen when folding or unfolding a foldable smartphone.

As an example, if you connect two 6-inch screens side by side, a 16:9 screen does not come out.

Accordingly, in the present invention, to solve this problem, the main body of the foldable smartphone is extended in the horizontal direction.

It is possible to create a 16:9 screen by stretching it in the horizontal direction, and reducing the length in the horizontal direction again to make a small-sized screen and a smartphone.

A part of the flexible display according to the present invention is not fixed to the main body of the foldable smartphone, but the flexible display is folded by causing the foldable smartphone to move according to the change in length appearing according to the bent or unfolded state by the structure of an elastic body including a spring. It makes it possible to prevent wrinkles or wrinkles.

In addition, in the process of bending or unfolding the foldable smartphone, the display area exposed to the outside can be calculated and used as a display screen that can be seen from both sides.

In the case of camera shooting, it is possible to allow the person who is filming and the person to be photographed to view the screen on the folded smartphone.

FIG. 1 shows the overall length change when the foldable smartphone is unfolded and in a folded state.

2 is a cross-sectional view of a structure in which the flexible display according to the present invention is mounted on a foldable smartphone, and a part of one side of the flexible display is fixed to the main body of the smartphone, with a hinge around the hinge of the foldable smartphone body. Centering on, the other side of the flexible display is not fixed to the body of the smartphone, the end of the unfixed flexible display is connected to a spring, and the other end of the spring is fixed to the main body of the smartphone.

3 is a front perspective view of a structure in which the flexible display according to the present invention is mounted on a foldable smartphone, and a part of one side of the flexible display is fixed to the main body of the smartphone, centering on a hinge of the foldable smartphone body, Around the hinge, the other side of the flexible display shows a range of structures that are not fixed to the main body of the smartphone.

4 is a perspective view showing the back side of the structure in which the flexible display according to the present invention is mounted on a foldable smartphone, and a part of one side of the flexible display is fixed to the main body of the smartphone with a bend hinge of the foldable smartphone main body. The other side of the flexible display with the hinge as the center is not fixed to the body of the smartphone, and the end of the unfixed flexible display is connected to the spring while bent toward the back of the smartphone body. Is a structure fixed to the back of the main body of the smartphone.

5 is a side cross-sectional view of a view in which the flexible display on the rear side moves to the front surface as the spring is increased when the foldable smartphone is opened and then bent in the structure of the present invention.

6 is a perspective view showing the back side of a structure in which a foldable smartphone is bent at a certain angle in an out-fold manner in a structure in which the flexible display according to the present invention is mounted on a foldable smartphone, centering on the bent hinge of the foldable smartphone body As a result, a part of one side of the flexible display is fixed to the body of the smartphone, and the other side of the flexible display is connected to the spring while being bent toward the back of the smartphone body around the hinge, and the other end of the spring is connected to the smartphone. It is a structure that is fixed to the back of the main body.

7 is a side view of a structure in which the foldable smartphone is completely folded in an out-folding manner in the structure in which the flexible display according to the present invention is mounted on a foldable smartphone, showing the flexible display with the bent hinge of the foldable smartphone body as the center. A part of one side is fixed to the body of the smartphone, and the other side of the flexible display around the hinge is connected to the spring while bent toward the back of the smartphone body, and the other end of the spring is connected to the back of the smartphone body. It is a fixed structure.

As a side view of FIG. 8, a structure in which a separation occurs because the flexible display at a portion connected to the spring around the hinge of the foldable smartphone should not be adhesively fixed with the main body of the foldable smartphone.

9 is an enlarged view showing the formation of a magnetic layer acting on a magnetic force on a lower portion of the flexible display and on the main body of the foldable smartphone.

FIG. 10 is an enlarged view showing a structure in which a layer on which a magnetic force acts on a lower portion of a flexible display and a body of a foldable smartphone is formed and a lubricant layer is coated.

11 shows a structure in which the magnetic layer under the flexible display is insulated.

12 is an enlarged view showing a structure in which an electrostatic force acting layer is formed on a lower portion of the flexible display and on a main body of the foldable smartphone and a structure in which a lubricant layer is coated.

13 is a cross-sectional view illustrating a protective film attached to a flexible display that is larger than that of the flexible display and a tempered glass that protects the upper surface of the flexible display.

14 shows a flexible display structure attached to a spring that is wound as such a structure.

FIG. 15 shows a structure in which an electric motor is connected to one end of the flexible display to pull or push the flexible display according to a process of unfolding or folding the foldable smartphone.

16 is a structure showing a change in a display area as a side view in a process of opening or folding a foldable smartphone.

17 is a perspective view showing a structure in which a screen can be viewed from both sides when the foldable smartphone is bent as a structure according to the present invention.

18 shows a screen when taking a picture with an out-fold foldable smartphone.

19 shows a structure in which a picture is taken so that the angle at which the picture is taken and the angle of the camera are not perpendicular.

Fig. 20 is an exploded view and an assembled view of a hinge structure using a protrusion and a protrusion groove in a perspective view.

Fig. 21 shows a structure in which the thickness of the hinge is reduced by applying two hinges in a side cross-sectional view.

22 shows a foldable smartphone, which is a foldable smartphone equipped with a flexible display according to the present invention, in which one side of the flexible display is adhered and fixed to one side of the main body of the smartphone, and in addition to the fixed portion of the flexible display. The flexible display, which is the hinged part, from the part where the main body is bent, is not adhesively fixed to the main body of the smartphone, and the end of the part that is not bonded to the main body of the flexible display is connected to the spring. The side is a front view showing the front of the display with a structure that is fixed to the main body of the smartphone, so that the length of the main body of the smartphone without the flexible display can be increased in the horizontal direction, thereby increasing the area of the display exposed to the front. Is shown.

23 shows a foldable smartphone, which is a foldable smartphone equipped with a flexible display according to the present invention, in which one side of the flexible display is adhered and fixed to one side of the main body of the smartphone, and in addition to the fixed portion of the flexible display. The flexible display, which is the hinged part, from the part where the main body is bent, is not adhesively fixed to the main body of the smartphone, and the end of the part that is not bonded to the main body of the flexible display is connected to the spring. The side is a structure that is fixed to the main body of the smartphone, so the length of the main body of the smartphone to which the flexible display is not fixed can be lengthened in the horizontal direction, so the front view showing the back side of the structure that increases the area of the display exposed to the front appears have.

24 shows a foldable smartphone, which is a foldable smartphone equipped with a flexible display according to the present invention, in which one side of the flexible display is adhered to and fixed to one side of the main body of the smartphone, and in addition to the fixed portion of the flexible display. The flexible display, which is the hinged part, from the part where the main body is bent, is not adhesively fixed to the main body of the smartphone, and the end of the part that is not bonded to the main body of the flexible display is connected to the spring. The side is a side view showing the side of the structure that is fixed to the main body of the smartphone, so that the length of the main body of the smartphone without the flexible display can be increased in the horizontal direction. have.

25 shows an example of a structure of an extension part capable of increasing the length of the smartphone main body as a side perspective view.

FIG. 26 shows, in a foldable smartphone, which is a foldable smartphone equipped with a flexible display according to the present invention, the flexible display is not fixed to the main body of the foldable smartphone, and both sides of the flexible display are centered on the hinge. This is a structure connected with a spring on one side or the back of the main body of this smartphone, and the other side of the spring is fixed to the main body of the smartphone, so the outer part of the main body of the smartphone can be extended in the horizontal direction. A side view showing a side view of a structure that increases an exposed display area is shown.

27 shows a front view of a structure in which the front screen is widened in the structure of the present invention.

28 shows the structure of the back side of a foldable smartphone that can be lengthened in both directions in the structure of the present invention.

29 shows an example of a structure in which the cover covering the rear side of the foldable smartphone of the present invention is formed to be separated, as a side view.

30 shows an example of a structure in which the cover covering the rear surface of the foldable smartphone of the present invention is formed to be separated is shown as a plan view of the rear surface.

FIG. 31 shows that in a foldable smartphone, which is a foldable smartphone equipped with a flexible display according to the present invention, the flexible display is not fixed to the main body of the foldable smartphone, and both sides of the flexible display are centered on the hinge. It is a structure connected to one side of the main body of the smartphone or the back of the smartphone by a spring, and the other side of the spring is fixed to the main body of the smartphone, and in the folded part of the flexible display, it is fixed to a part of the hinge of the foldable smartphone. Is shown as a cross-sectional view.

FIG. 32 shows a structure in which the flexible display is folded inward while the folded portion of the flexible display of the foldable smartphone of the present invention is fixed to the hinge.

As an example, FIG. 33 shows that one display portion of the foldable smart phone of the present invention is rotated forward and rotated in the same structure as a notebook computer.

FIG. 34 shows a structure of increasing the area of the display screen when the flexible display of the foldable smartphone is folded in an inward direction, as a side view.

FIG. 35 is a perspective view of a structure in which the area of the display screen is increased when the flexible display of the foldable smartphone is folded inward, showing an example of using a wide screen and using a keyboard and a touch pad.

In FIG. 36, as an example, a structure in which the flexible circuit board is bent so that it is connected to the electronic circuit board even when the flexible display moves is shown as a side cross-sectional view.

The best form of the present invention is a foldable smart phone that can be folded or unfolded, particularly in a structure that can be stretched again in an open state.

By increasing the area of the display screen again while the foldable smartphone of the present invention is opened, the aspect ratio can be produced in a 16:9 ratio, and thus usability is increased.

The method of increasing the area of the display screen is to install an elastic body such as a spring on the back of the foldable smartphone, and attach a flexible display to it.When the smartphone is stretched or reduced, the flexible display becomes a smart phone according to the change of the elastic body. You can increase or decrease the display area of the front of the smartphone by going to the front of the screen and then returning to the rear.Especially, even when folding or unfolding the foldable smartphone, the folder by the elastic body on the back of the smartphone connected to the flexible display When the smartphone is unfolded or folded, it can reduce or increase the area of the display area in the front.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited or limited by the embodiments. For reference, in the present description, the same numbers refer to substantially the same elements, and the contents described in other drawings may be cited under the above rules, and contents that are determined to be obvious to those skilled in the art or repeated may be omitted.

The flexible display referred to in the present invention is a display that can be bent or rolled up, and generally refers to an organic light emitting device display formed on a flexible substrate such as a polyimide substrate.

In addition, a foldable smartphone is a smartphone equipped with a flexible display, and one to two or more hinges are formed on the smartphone, so that the smartphone can be bent or folded.

The hinge refers to the folded part, and the hinge of the smartphone can also be displayed as the folding part of the smartphone.

In addition, the main body of the smartphone may display a portion that does not include a display as the main body of the smartphone, and may be displayed as a left body and a right body or one body and the other body around the folded portion.

A foldable smartphone is described as an example, but it can also be applied to a tablet or a laptop, and as a term including this, it can be expressed as a foldable electronic device.

The most important part of the structure of a foldable smartphone is that the length increases as the smartphone is folded.

In (a), the unfolded state of the main body 101 excluding the display of the foldable smartphone is shown as a cross-sectional view, and the left main body 102 and the right main body 104 are shown to the left and right of the hinge 103.

For explanation of the drawings, the left body and the right body are classified and marked, and the names of the bodies on both sides of the bent hinge may be called differently.

When unfolded, in this drawing, the upper surface of the smartphone is formed above the hinge, and the length of the left body (102-L) is marked as A, and the length of the right body (104-L) is marked as B.

(b) shows the folded state of the main body 101 excluding the display of the foldable smartphone as a cross-sectional view, and the right main body 104 is folded under the left main body 102 while being folded around the hinge 103 Indicates the state.

The length of the cross section in the folded direction of the foldable smartphone in the folded structure is the length of the part where the hinge is exposed to the length of A, which is the length of the left body (102-L) and B, which is the length of the right body (104-L). C, which is (103-L), is added.

Therefore, A + B + C becomes the length of the cross section in the folding direction of the foldable smartphone in the folded structure, and the length is increased by C compared to A + B, which is the length when the foldable smartphone is unfolded.

The structure of the hinge in this drawing is an example. Even if the structure of the hinge and the structure of the foldable smartphone in the unfolded state are different, in general, the length of the cross section in the folding direction of the foldable smartphone in the unfolded and the folded state is It is different, and the length in the folded state is longer than the length in the unfolded state.

Therefore, when the flexible display is mounted on the main body of the foldable smartphone, the length of the structure in which the display is unfolded and the structure in which the display is folded must be different, so a structure corresponding to this is required.

In general, the material of the flexible display is polyimide, so it is not elastic.

Accordingly, there is a need for a structure in which the flexible display is mounted in the unfolded and folded state of the foldable smartphone.

Among foldable smartphones, especially the out-folding type smartphone, in which the display is folded outward, increases in length in the folded direction when folded.

In the present invention, in order to solve this problem, in a foldable smartphone, which is a foldable smartphone equipped with a flexible display, one side of the flexible display is adhered and fixed to one side of the main body of the smartphone, and in addition to the fixed portion of the flexible display. The flexible display, which is the hinged part, from the part where the main body is bent, is not adhesively fixed to the main body of the smartphone, and the end of the part that is not bonded to the main body of the flexible display is connected to the spring. The side is a structure fixed to the main body of the smartphone.

The flexible display is not fixed to the main body of the smartphone but is connected with a spring, so that when the foldable smartphone is folded, the spring connected to the flexible display increases and the length of the extension is corrected.

In this drawing, for the sake of explanation, the flexible display is attached to and fixed to the left body of the hinge of the foldable smartphone with an adhesive, etc., and the flexible display is not fixed to the right body of the hinge and can slide with the body. There is a spring fixed at one end at the bottom of the body, so the other end of the spring is connected to the flexible display.

As a structure of a cross-sectional view of a foldable smartphone 201 equipped with a flexible display 202 in the drawing, all or part of the flexible display 203 on the left body 102 of the hinge 103 is not adhered in the unfolded state. The flexible display 204 on the right body 104 of the hinge 103 is not adhered, and the flexible display on the right body is wound and bent to the bottom of the right powder. The flexible display 205 is connected to the spring 206, and the other end 207 of the spring is fixed to the main body of the smartphone.

In this drawing, a straight spiral spring structure is shown, and in the flexible display, the flexible display moves in a straight line in the direction of the spring as the spring is stretched or contracted.

This drawing shows the structure of a foldable smartphone that is bent and folded once with one hinge for explanation.If there are two hinges for folding twice, the flexible display on the outer part of one hinge is It is fixed to the main body, the rest of the parts are not fixed to the main body of the smartphone, and the end of the flexible display is manufactured in a structure connected to a spring.

As a structure of a perspective view of a foldable smartphone 201 equipped with a flexible display 202 in the drawing, all or a part of the flexible display 203 on the left body 102 of the hinge 103 is not adhered in an unfolded state. Is fixed, and the flexible display 204 on the right body 104 of the hinge 103 is not adhered.

The meaning that all or part of the flexible display on the left body is glued and fixed to the left body with the hinge of the foldable smartphone as the center because it functions as the present invention even if only part of the flexible display is fixed. Even if only the lower part of the bent part of the end is in contact, the present invention functions.

In this drawing, a cover case covering the spring and the display is not shown in order to cover the flexible back side to show the spring and the display structure, and in actual manufacture, a cover covering the back side of the foldable smartphone may be manufactured.

As a structure of a perspective view of a foldable smartphone 201 equipped with a flexible display 202 in the drawing, all or a part of the flexible display 203 on the left body 102 of the hinge 103 is not adhered in an unfolded state. The flexible display 204 on the right body 104 of the hinge 103 is not attached, and the flexible display on the right body is wound up to the bottom of the right powder, and the flexible display on the lower right body is 205 is connected to the spring 206, and the other end 207 of the spring is fixed to the body of the smartphone.

In (a), the foldable smartphone is in an open state, the front portion 204 and the rear portion 205 of the non-adhesive portion of the flexible display are shown, and the connected spring 206 is shown.

In the unfolded state, the length of the spring is indicated by L1 (501).

Even in the unfolded state, the spring has a structure in which the spring is extended so that the pulling force can act on it, and the flexible display on the front surface is kept flat when the flexible display is pulled.

(b) shows the process of bending the foldable smartphone.

When the foldable smartphone is bent, the front portion 204 and the rear portion 205 of the non-adhesive portion of the flexible display are shown, and in the structure with the connected spring 206, the hinge portion is bent and the length is L2 (502). ), and the rear portion 205 of the display portion that is not adhered to the hinge portion increases to the side and the front side of the foldable smartphone, and accordingly, the length of the spring is increased to L3 (503).

Therefore, compared to the spring length L1 when the foldable smartphone is unfolded, the flexible display at the rear portion as much as L3-L1=L2 moves.

On the contrary, when the foldable smartphone is unfolded again while it is bent, the length of the hinge is reduced, and the flexible display portion of the front part that is not fixed to the body is pulled by the spring and moved to the side and the rear.

In this drawing, to show the structure of the spring and display of the foldable smartphone, a cover case that covers the spring and the display is not shown, and in the actual structure, a cover that covers the rear of the foldable smartphone is manufactured. Can be.

As shown in (a), it is a perspective view of a structure in which the foldable smartphone 201 equipped with the flexible display 202 is bent at a certain angle in an out-folding manner, and above the left body 102 of the hinge 103 in the bent state. All or part of the flexible display 203 is bonded and fixed, the flexible display 204 on the right body 104 of the hinge 103 is not bonded, and the flexible display on the right body is It is wound to the bottom, and the flexible display 205 at the lower part of the right body is connected to the spring 206, and the other end 207 of the spring is fixed to the body of the smartphone, and the foldable smartphone is bent. It is a structure in which the spring increases as the length of the hinge part increases.

In (b) and (c) and (d), various types of springs such as a helical spring, a middle wound spring, or a bent spring are shown as an example, and in the present invention, It indicates that various types of springs are available.

7 is a side view of a structure in which the foldable smartphone is completely folded in an out-fold manner in a structure in which the flexible display according to the present invention is mounted on a foldable smartphone, showing a flexible display centered on a bent hinge of the foldable smartphone body. A part of one side is fixed to the body of the smartphone, and the other side of the flexible display around the hinge is connected to the spring while bent toward the back of the smartphone body, and the other end of the spring is connected to the back of the smartphone body. It is a fixed structure.

As shown in the drawing, as a side view of a structure in which the foldable smartphone 201 equipped with the flexible display 202 is completely folded in an out-fold manner, the flexible display 203 on the left body 102 of the hinge 103 in a bent state All or part of) is bonded and fixed, the flexible display 204 on the right body 104 of the hinge 103 is not bonded, and the flexible display on the right body is wound up to the bottom of the right body. , The flexible display 205 at the lower part of the right body is connected to the spring 206, and the other end 207 of the spring is fixed to the body of the smartphone, so that the foldable smartphone is bent as much as the hinge part. As the length of the spring increases, the spring is increased.

With such a structure, according to the structure of the present invention, the flexible display mounted on the foldable smartphone can be operated so as not to be wrinkled or folded.

In the structure according to the present invention, since the flexible display at the portion connected to the spring centering on the hinge of the foldable smartphone should not be adhesively fixed to the main body of the foldable smartphone, a separation may occur.

When a separation occurs, pressing the screen for a touch can cause a jolt.

Therefore, it is necessary to solve this.

In (a), the flexible display 204 at the portion connected to the spring centering on the hinge 103 of the foldable smartphone should not be adhesively fixed with the main body 104 of the foldable smartphone, so the structure where the separation occurs is shown. have.

In (b), as an enlarged view, a structure in which a separation 801 occurs in a structure in which the flexible display 204 is not adhesively fixed to the main body 104 of the foldable smartphone is shown.

Therefore, in the present invention, a structure is formed on the bottom of the flexible display and on the top of the main body of the foldable smartphone in contact therewith, each of which is pulled by the force of a magnet so that the flexible display and the main body can slide with each other while preventing separation. .

(b) is an enlarged view of (a), which is a side view, in which a magnetic layer 901 is formed under the flexible display 204, and a magnetic layer 902 is also formed on the body 104 of the foldable smartphone. Structure.

The magnet layer is formed in a structure in which the N and S poles pull each other.For example, if the magnet layer at the bottom of the flexible display is in the order of N and S poles, the magnet layer on the top of the foldable smartphone is also N and S poles. It can be formed in the order of.

The magnet layer can be formed of various magnetic materials and structures, such as formed by dispersing ferrite powder in a polymer and then coating it, or one side is formed of a magnetic layer that becomes magnetized, and the other side is formed with a nickel and It is also possible to form a layer of material that adheres to the same magnet.

In addition, it is possible to improve durability by reducing frictional force by forming a lubricating layer with good sliding properties such as a Teflon layer covering the magnet layer.

In (a), as an enlarged view, a magnetic layer 901 and a lubricating layer 1001 are formed under the flexible display 204, and a magnetic layer 902 and a lubricating layer are also formed on the body 104 of the foldable smartphone. (1002) It is a formed structure.

The lubricating layer is generally coated with a material having low friction, such as a Teflon-based polymer coating.

In (b), when the foldable smartphone is unfolded or folded, the upper surface of the flexible display 204 and the main body 104 according to the structure of the present invention is a lubricating layer 1001 by the pulling force between the magnet layers 901 and 902. , 1002) It represents a structure that slides in contact with each other.

With this structure, while being pulled or released by the spring of the present invention, the flexible display can slide while in contact with the main body of the foldable smartphone.

In the structure of forming a magnetic layer between the flexible display and the main body of the foldable smartphone of the present invention, a metal such as nickel may be used among materials capable of magnetization.

If the magnetized metal plate is under the flexible display, the metal plate can be divided into insulation because it can affect the electronic function.

(a) is a cross-sectional view showing a magnetic layer under the flexible display 204 made of insulating magnetic layers 901-S separated from each other.

(b) is a plan view in which the magnetic layers under the flexible display 204 are made of insulating magnetic layers 901-S separated from each other.

As a structure of such an insulated magnetic layer, the magnetic layer can reduce electromagnetic influences.

As a method for causing the pulling force of the main body of the flexible display and the foldable smartphone in the present invention to act, a structure that pulls an electrostatic force to the lower portion of the flexible display and the upper portion of the main body of the foldable smartphone in contact therewith is provided. It can also be formed so that the flexible display and the main body can slide from each other while preventing separation.

Electrostatic force means that when an insulating layer is formed between two electrodes and + and-electricity is applied, a pulling force is generated between the two electrodes.

When the same electricity is applied to the two electrodes and the same pole is reached, a force to be pushed is generated.

(a) is an enlarged view of a state in which the main body of the flexible display and the foldable smartphone are separated, and an electrode layer 1201 and a lubricating layer 1202 are formed under the flexible display 204, and the main body of the foldable smartphone ( The electrode layer 1203 and the lubricating layer 1204 are also formed on the top of 104).

The lubricating layer can also function as an electrical insulating layer, and is generally coated with a material having low friction, such as a Teflon-based polymer coating.

(b) is an enlarged view of a state in which the main body of the flexible display and the foldable smartphone are in contact, and an electrode layer 1201 and a lubricating layer 1202 are formed under the flexible display 204, and the main body of the foldable smartphone ( The electrodeposition layer 1203 and the lubricating layer 1204 are also formed on the top of 104).

A metal may be used for the electrode layer, and since the electrical resistance may be high, a conductive powder such as carbon powder may be mixed with a polymer to be used.

In addition, by applying electricity in the same direction to the electrode to generate a push force, the friction between the lower part of the flexible display and the main body of the smartphone can be reduced when the foldable smartphone is folded or unfolded.

In the present invention, the flexible display is not directly connected to the spring, but a protective film is attached to the lower portion of the flexible display to protect the flexible display and to connect to the spring with a protective film except for the part exposed to the outside when folded. can do.

By doing this, it is possible to protect the display while reducing the area of the flexible display.

In addition, the flexible display can be protected by attaching a bendable tempered glass on the top of the flexible display.

(a) has a structure in which a protective film 1301 made of PET or urethane material is attached to the lower part of the flexible display 204 with an adhesive, etc., and there is a part 1302 made long outside the flexible display. It is a structure that can be connected to the spring of the invention.

Figure (b) shows that the flexible display can be protected by attaching the tempered glass 1303 to the top of the flexible display 204 with a transparent adhesive layer 1304.

The thickness of the tempered glass can be made about 0.1mm so that it can be bent like a flexible display.

In the present invention, in the foldable smartphone which is a foldable smartphone equipped with a flexible display, one side of the flexible display is adhered and fixed to one side of the main body of the smartphone, and a hinge is provided in addition to the fixed portion of the flexible display. The flexible display from the part where the main body is bent is a structure that is not adhesively fixed to the main body of the smartphone, the end of the part that is not adhered to the main body of the flexible display is connected to the spring, and the other side of the spring In the structure fixed to the main body of the smartphone, the flexible display is wound and released using a spring in a spiral direction rather than a spring in a straight direction, and can move according to the operation of the foldable smartphone.

(a) is a structure of a cross-sectional view of a foldable smartphone 201 equipped with a flexible display 202, in which all or a part of the flexible display 203 on the left body 102 of the hinge 103 in the unfolded state is It is bonded and fixed, and the flexible display 204 above the right body 104 of the hinge 103 is not adhered, and the flexible display on the right body is wound and bent to the bottom of the right body, and under the right body. The part of the flexible display 205 is connected to a spring 1401 having a winding structure, and the other end of the spring is fixed to the main body of the smartphone.

(b) is a diagram of the process of folding the foldable smartphone in the cross-sectional structure of the foldable smartphone 201 equipped with the flexible display 202, above the left body 102 of the hinge 103 in the unfolded state. All or part of the flexible display 203 is bonded and fixed, the flexible display 204 on the right body 104 of the hinge 103 is not bonded, and the flexible display on the right body is It is wound up and bent down, and the flexible display 205 at the lower part of the right body is connected to a spring 1401 having a winding structure, and the other end of the spring is a foldable smartphone in a structure fixed to the body of the smartphone. When folded, the spring 1401 of the winding structure is released, and the connected display is folded outward by an increased length.

As described above, using the spring of the present invention, it is possible to utilize various structures such as moving a structure in which the flexible display is pulled or pushed outward in a straight line or in a winding structure.

The present invention may also use a small electric motor as a method for applying a length change in the process of unfolding or folding a foldable smartphone to a flexible display.

The process of pulling or pushing the flexible display in the process of unfolding or folding a foldable smartphone using an electric motor can also be operated using a motor.

As shown in the drawing, the end portion 205 of the portion 204 that is not adhered to the main body of the foldable smartphone's flexible display 201 is wound around the rear of the main body of the foldable smartphone and is connected to the electric motor 1501 As the electric motor rotates according to the electric signal, the flexible display can be pulled or pushed out.

Therefore, as in the present invention, the flexible display mounted on the foldable smartphone with a hinge is fixed to the main body of the foldable smartphone in one direction of the hinge so as not to move, and the smart display in the other direction of the hinge is fixed. The flexible display is not attached to the main body of the phone to move, and the end of the flexible display is spring or connected to an electric motor to allow the flexible display to be pulled or released according to the length change that occurs when the foldable smartphone is unfolded or folded. It is to be matched.

In the structure of the present invention, both sides of the flexible display mounted on the smartphone body on both sides of the hinge of the foldable smartphone are not fixed respectively, but are connected to a spring or connected to an electric motor to respond to changes in the length of the foldable smartphone. You may.

Another application of the structure of the present invention is to adjust the displayed screen by calculating a change in the position where the flexible display is exposed in the process of unfolding or folding the foldable smartphone and calculating the area exposed to the outside of the flexible display.

As the foldable smartphone is folded, the change in the length of the exposed part of the foldable smartphone's display is recognized as an electrical signal according to the bending angle, and this can be used to determine the part where the screen of the display appears.

FIG. 16 is a side view illustrating a change in a display area during a process of folding or folding a foldable smartphone.

In the unfolded state, the length of the spring 206 is indicated by L1 (501), and the length of the portion where the screen appears as the portion 204 on the upper side of the front hinge is not fixed to the main body of the foldable smartphone is DF1 ( 1601), the length of the bent portion of the side is indicated by R1 (1602), and the length of the flexible display 205 on the back of the foldable smartphone is indicated by DB1 (1603).

(b) shows when the foldable smartphone is folded at a certain angle, and when folded, the hinge is exposed and the length increases by L2(502), and the spring increases to the length of L3(503) by the length of L2, and the spring As the flexible display connected to the rear moves, the length of the rear display part is reduced to DB2 (1606), and moves to the front according to the degree of folding of the foldable smartphone and R2 (1603), which is the bent part of the side. In the display of the exposed portion of the DF2 (1604) portion, a portion of the flexible display portion (DB1) on the rear side appears in the portion of DF2 according to the degree of folding with the flexible display portion (R1) on the side of the unfolded state.

Therefore, it is necessary to calculate this and display the screen of the DF2 part.

As an example, if the foldable display is bent and the exposed part of the hinge is about 90 degrees, if the diameter of the hinge is 10 mm, the length is 3.14 X 10 mm X (90/360), which increases by 7.35 mm.

Therefore, the display on the side and back of the foldable smartphone moves about 7.35mm to the front, and when unfolded, a part of the front display (DF1) moves to the hinge (L2), so the screen should be displayed. The part DF2 becomes (DF1-L2) + (DF1+ (part of R1) + (part of DB1)).

Therefore, the screen must be displayed on the flexible display by this calculation.

Accordingly, the display can be viewed from the other side by calculating the display length as much as the exposed portion of the flexible display and making the screen appear.

In order to see the screen from both sides with this method, a method of measuring the folding angle of the foldable smartphone by converting it into an electrical signal must be added.

If such an electrical measurement method is not used and the foldable smartphone is determined to appear at a certain angle when the foldable smartphone is folded, the display screen can be displayed with a predetermined calculated value.

As an example, if the screen is displayed at intervals of 30 degrees, there is a method of displaying the screen according to the angle after calculating the screen at an angle of 30 degrees, 60 degrees, 120 degrees, and 180 degrees in advance.

Accordingly, when the foldable smart phone according to the present invention is folded in various ways, a screen display method can be determined according to the movement of the flexible display.

As shown in the figure, the left screen 1701 and the right screen 1702 can be displayed on the same screen according to the screen DF2 1604 that appears when the foldable smartphone is bent as much as L2 502.

When the foldable smartphone of the present invention is folded or unfolded, the flexible display can display the screen according to movement in both directions and the screen can be viewed in both directions, thereby enabling efficient use of the screen.

When taking pictures with a smartphone, the structure of the present invention can be utilized.

When taking a picture by folding the foldable out-of-fold smartphone, the person taking the picture can see the screen as well as the screen that the person taking the picture sees.

18 shows a screen when taking a picture with an out-folding foldable smartphone.

In (a), a screen viewed by a person taking a picture is shown, and as an example, a screen shot by the camera is shown on the flexible display 203 at the left part of the hinge 103.

In (b), a screen viewed by the person taking a picture is shown, and the appearance of the camera 1801 can be confirmed through the flexible display 204 on the right side of the hinge 103.

In such an out-folding method of photographing, when the angle of the person who takes the picture and the angle of the person who takes the picture are varied, the display screen can be corrected.

As shown in the drawing, if the foldable smartphone 101 is not completely folded and folded at a certain angle, the angle between the screen 203 and the camera 1801 viewed by the person taking a picture is not at a right angle, and the screen viewed by the person who is photographed The screen displayed on the flexible display of 204 is also displayed at a certain angle, and since the portion displayed on the flexible display screen varies according to the angle, the screen displayed according to the angle of the foldable smartphone of the present invention is calculated and photographed with the camera. Screen can be displayed.

Therefore, even when shooting with a camera, the person who is photographed by the camera can accurately check the screen shot with the camera.

The hinge of the foldable smartphone of the present invention may use a general hinge structure, which is most often used in a structure using a protrusion and a protrusion groove.

In (a), as an exploded view, one part (2001) of the hinge has a circular protrusion groove (2002) that can fit the protrusion, and the other part (2003) has a circular protrusion part (2004). do.

In (b), the hinge 103 is assembled, and the left portion 2001 and the right portion 2003 of the hinge can be folded or unfolded.

If you make only one hinge, the hinge can pop out, so you can make more than one.

As shown in the drawing, by applying two hinges 2101 to the foldable portion of the foldable smartphone 101, the thickness of the hinge can be similarly matched to the

main bodies

102 and 104 of the smartphone.

As another application of the present invention, in a foldable smartphone that is a foldable smartphone equipped with a flexible display, one side of the flexible display is adhered and fixed to one side of the main body of the smartphone, and a fixed portion of the flexible display In addition, the flexible display from the part where the body is bent, which is the hinged part, is not adhered and fixed to the main body of the smartphone, and the end of the part that is not bonded to the main body of the flexible display is connected to the spring. On the other side, in the structure fixed to the main body of the smartphone, the length of the main body of the smartphone to which the flexible display is not fixed can be extended in the horizontal direction, thereby increasing the area of the display exposed to the front.

In the part where the flexible display is not fixed, one end of the flexible display is connected to the spring, so even if the body of the smartphone is horizontally stretched, the spring is stretched and the display can be sent to the front of the smartphone body.

In the present invention, the operation of the structure of pulling or pushing the flexible display is described with a spring. In addition to the spring, a structure in which the flexible display is pulled or released using an electric motor is also possible, and an elastic body such as rubber other than the spring is also possible. Do.

22 shows a foldable smartphone, which is a foldable smartphone equipped with a flexible display according to the present invention, in which one side of the flexible display is adhered and fixed to one side of the main body of the smartphone, and in addition to the fixed portion of the flexible display. The flexible display, which is the hinged part, from the part where the main body is folded, is not adhesively fixed to the main body of the smartphone, and the end of the part that is not bonded to the main body of the flexible display is connected to the spring, and the other side of the spring Is a structure fixed to the main body of the smartphone, and the main body of the smartphone to which the flexible display is not fixed can be lengthened in the horizontal direction, thereby increasing the area of the display exposed to the front. Is shown.

(a) shows the structure of the foldable smartphone 201 equipped with the flexible display 202 in the drawing, in which all or part of the flexible display 203 on the left body 102 of the hinge 103 in the unfolded state is It is bonded and fixed, and the flexible display 204 above the right body 104 of the hinge 103 is not adhered, and the flexible display on the right body is wound and bent to the bottom of the right body, and under the right body. The part of the flexible display is connected to the spring, and the other end of the spring is fixed to the body of the smartphone, and the body 104 to which the flexible display is not fixed has an extension part 104-E, and the main body It has a structure with an extension body 104-S that can increase the length by pulling it horizontally.

When the body of the extension part is pulled, it is pulled in the pulling direction and the length of the extension part is increased.

(b) shows the structure of the foldable smartphone 201 equipped with the flexible display 202 in the drawing, in which all or part of the flexible display 203 above the left body 102 of the hinge 103 is It is bonded and fixed, and the flexible display 204 above the right body 104 of the hinge 103 is not adhered, and the flexible display on the right body is wound and bent to the bottom of the right body, and under the right body. The flexible display of the part is connected to the spring, and the other end of the spring is fixed to the main body of the smartphone, so that the main body of the extension 104-S of the main body 104 to which the flexible display is not fixed is horizontally It shows a structure in which the length of the extension part 104-E is extended by pulling.

By increasing the length of the extension in this way, the screen of the flexible display 202 can be used more widely.

In (a), the structure of the foldable smartphone 201 with the flexible display 202 mounted in the drawing, in the unfolded state, the entire or part of the flexible display on the left body 102 of the hinge 103 is adhered. It is fixed, and the flexible display 204 on the right body of the hinge 103 is not adhered, the flexible display on the right body is wound up to the bottom of the right body and bent, and the flexible display 205 on the lower right body is ) Is connected to the spring 206, and the other end of the spring is fixed 207 to the body of the smartphone, and the extension part 104-E is provided on the body 104 to which the flexible display is not fixed. There is a structure with an extension body 104-S that can increase the length by pulling the body horizontally.

(b) shows the structure of the foldable smartphone 201 equipped with the flexible display 202 in the drawing, in which all or part of the flexible display 203 above the left body 102 of the hinge 103 is It is bonded and fixed, and the flexible display 204 above the right body 104 of the hinge 103 is not adhered, and the flexible display on the right body is wound and bent to the bottom of the right body, and under the right body. Part of the flexible display 205 is connected to the spring 206, the other end of the spring is fixed to the body of the smartphone 207, the extension of the body 104 to which the flexible display is not fixed It shows a structure in which the length of the extension part 104-E is increased by pulling the main body 104-S horizontally.

When the main body of the extension part is pulled, the spring 206 connected to the flexible display is extended and the flexible display moves to the front of the main body of the flexible display.

As shown in this figure, when the main body of the extension part is pulled, a latch structure 2401 is shown as a method of extending the extension part.

The latch structure is a structure in which a protruding metal structure moves along a groove.

In addition to the latch structure, various methods of increasing the length of the extension part such as a structure that moves while the metal plate slides can be used.

In (a), the latch structure 2401 before it is stretched is shown, and the metal protrusion is made to move according to the groove.

In (b), the following extension structure 2401 is shown, and the metal protrusion is made to move along the groove.

By applying the structure of the present invention, both sides of the bent body of the foldable smart phone are stretched, so that the screen can be used more widely.

FIG. 26 shows, in a foldable smartphone, which is a foldable smartphone equipped with a flexible display according to the present invention, the flexible display is not fixed to the main body of the foldable smartphone, and both sides of the flexible display are centered on the hinge. It is a structure connected to one side of the main body of this smartphone by a spring, and the other side of the spring is fixed to the main body of the smartphone, so the outer part of the main body of the foldable smartphone can be extended horizontally. A side view showing a side view of a structure that increases the area of the display exposed to the front is shown.

In (a), the structure of the foldable smartphone 201 equipped with the flexible display 202, the flexible display 203 on the left body of the hinge 103 is not adhered, and the flexible display on the left body part 203 is wound and bent to the bottom of the left body 102, and the flexible display 2601 at the lower part of the left body is connected to the spring 2602, and the other end of the spring is fixed to the body of the smartphone. In the structure, there is an extension part 102-E in the left body 102 to which the flexible display is not fixed, and there is an extension body 102-S that can increase the length by pulling the body horizontally,

The flexible display 204 above the right body 104 with the hinge 103 at the center is not adhered, and the flexible display of the right body is wound and bent to the bottom of the right body, and the flexible display at the bottom of the right body 205 is connected to the spring 206, the other end of the spring is fixed to the body of the smartphone 207, in the body 104, the flexible display is not fixed, the extension part 104-E ), and an extension body 104-S that can increase the length by pulling the body horizontally.

Therefore, when the foldable smartphone is unfolded, pulling the body of the extensions 102-S and 104-S_ on both sides increases the length of the extensions 102-E and 104-E while pulling them in the pulling direction to use a wider front screen. It is a structure.

(b) is a structure of a foldable smartphone 201 equipped with a flexible display 202, the flexible display 203 on the left body of the hinge 103 is not adhered, and the flexible display on the left body part 203 is wound and bent to the bottom of the left body 102, and the flexible display 2601 at the lower part of the left body is connected to the spring 2602, and the other end of the spring is fixed to the body of the smartphone. In the structure, there is an extension part 102-E in the left body 102 to which the flexible display is not fixed, and the extension part body 102-S that can increase the length by pulling the body horizontally extends from the structure It shows a structure in which the length of the extension part 102-E is extended to the left by pulling the sub-body 102-S horizontally.

The flexible display 204 above the right body 104 with the hinge 103 at the center is not adhered, and the flexible display of the right body is wound and bent to the bottom of the right body, and the flexible display at the bottom of the right body 205 is connected to the spring 206, the other end of the spring is fixed to the body of the smartphone 207, in the body 104, the flexible display is not fixed, the extension part 104-E ), and an extension body 104-S that can increase the length to the right by pulling the body horizontally.

Therefore, when the foldable smartphone is unfolded, if you pull the body of the extension part 102-S, 104-S on both sides, it is pulled in the pulling direction and the length of the extension part 102-E, 104-E increases, so that the front screen can be used widely. It is a structure.

In (a), in the foldable smartphone of the structure of the present invention, there is an extension part 102-E and an extension body 102-S on the left side around the hinge, and the extension part 104-E on the right side. It is the screen size of the structure in which the extension part is not stretched in the structure with the extension part body 104-S.

In (b), in the foldable smartphone of the structure of the present invention, there is an extension part 102-E and an extension body 102-S on the left side around the hinge, and the extension part 104-E on the right side. In the structure in which the body 104-S and the extension body 104-S are provided, a structure in which the display screen is enlarged by increasing the extension portions 102-E and 104-E is shown.

Accordingly, in the structure of the present invention, in the structure in which the screen is widely used while unfolding the foldable smartphone in a folded state, the screen can be used more widely by adding a structure capable of increasing the screen by pulling both sides.

The reason why the screen is wider by pulling it to both sides is that it is difficult to make a normal video ratio of 9:16 for a foldable smartphone.

In general, general smartphones that are not foldable smartphones are manufactured using a large aspect ratio of 9:16 for the size of the display screen.

The foldable smartphone can be unfolded, so when it is unfolded, it has a structure in which two screens are unfolded.

For example, taking a 6-inch screen as an example, if the ratio is 9:16, the width and height are about 75mm and 133mm.

In foldable phones, the width is doubled, so when unfolded, the width is 150mm and the length is 133mm.

Therefore, since the aspect ratio is about 1.13:1, it is a rectangle that is close to a square, so the screen cannot be sufficiently used when watching a video.

Therefore, with the structure of the present invention, it is possible to create a screen size suitable for a video by extending the length in both sides. It has a size of 234mmX133mm, so it can be used with a screen size of about 10.7 inches.

Therefore, it is possible to use the screen of the foldable smart phone more efficiently as the structure of the present invention.

In (a), in the foldable smartphone of the structure of the present invention, there is an extension part 102-E and an extension body 102-S on the left side around the hinge, and the extension part 104-E on the right side. As a structure in which the extension part is not stretched in the structure having the extension part body 104-S, the structure before the

springs

2602 and 206 connected to the flexible display are stretched is shown.

In (b), in the foldable smartphone of the structure of the present invention, there is an extension part 102-E and an extension body 102-S on the left side around the hinge, and the extension part 104-E on the right side. In the structure in which the extension body 104-S is provided, the extension portions 102-E and 104-E are increased to increase the

springs

2602 and 206 connected to the flexible display.

As the spring is increased, the front display screen is also increased.

Another advantage of the structure of the present invention is that the extension can be increased even when the foldable smartphone is bent so that it can be seen from both sides.

Therefore, you can use a wide screen when viewing the screen from both sides.

In the structure of the extension part in the structure of the present invention, various structures such as a latch structure or a structure using a metal plate may be used, and a separate spring may be installed in the extension part to allow the force of the spring to act when pulling or pushing. have.

In the structure of the present invention, a cover (covering case) can be formed to cover the spring portion of the back side of the foldable smartphone, and in the structure extending the length to a plane, the cover can be extended or the cover can be separated and extended. have.

(a) shows the left and

right covers

2901 and 2902 covering the rear of the foldable smartphone including the spring before extending the extension.

In (b), when the extension part is extended, the covers 2901 -S and 2902-S are separated according to the extension parts of the

covers

2901 and 2902.

In addition to this method, a method such as extending the spring so that the spring does not come out by using an elastic rubber material for the cover can be used.

(a) shows the left and

right covers

In (b), when the extended portions are extended, the extended portions of the

covers

2901 and 2902 are also separated and open to the covers 2901S and 2902-S.

In this way, a structure of a foldable smartphone that extends to a flat surface while protecting the back side is possible.

In the description of the present invention, an out-fold method in which the flexible display is folded outward has been described, and can also be used in an in-fold method in which the flexible display is folded inward.

When the foldable smartphone of the present invention is folded in the In Fold method, which is a method in which the flexible display is folded inwardly, the flexible display is not fixed to the main body, so it can be lifted up during the folding process.

In order to prevent this, a guide can be made on the side and a structure in which the flexible display is pressed from the edge can be made so that it does not deviate from the main body.

Alternatively, when the springs connected to both the main body of the foldable smartphone and the separate flexible display are folded in an in-fold manner, the spring is made in a structure in which the pushing force acts on it, so that the flexible display can be prevented from being separated from the main body.

In the structure of the present invention, as another method of preventing the flexible display from being separated from the body when it is folded in an in-fold manner, a structure in which the center where the flexible display is folded is fixed to a hinge while the flexible display is separated from the body is possible.

The display on both sides of the hinge is pulled or pushed by the spring in the process of folding, responding to the change in length, and the part fixed to the hinge is not moving.

In the structure of the in-fold type foldable smartphone, the structure in which the flexible display of the present invention is fixed only to the foldable portion can be applied to the in-fold type foldable smartphone, and can also be applied to the expandable structure of the present invention. Do.

In this drawing, a drawing of a foldable smartphone of the present invention that can be folded and stretched is used as an example.

In (a), in the foldable smartphone 201, the flexible display 202 is separated from the main body 101, the end portion is connected to a spring, and the folded portion 3101 of the flexible display is a hinge 103 ) Is attached and fixed.

In (b), as an enlarged view, a structure in which the folded portion 3101 of the flexible display is bonded to the hinge 103 and fixed 3102 is shown.

Since the foldable part of the flexible display is fixed to the hinge, when the display is folded in an in-fold manner with the display facing inward, the display can be folded without being separated from the main body of the foldable smartphone.

(a) shows a structure in which the flexible display 202 of the foldable smartphone 201 of the structure of the present invention is partially folded in an inward state, and by

springs

206 and 2602 connected to both sides of the flexible display In the structure corresponding to the change in length during the folding process, the folding part 3101 of the flexible display is fixed to the hinge 103, so that the flexible display is not separated from the main body when the foldable smartphone is folded. It can be folded into.

(b) shows a structure in which the flexible display 202 of the foldable smartphone 201 of the structure of the present invention is completely folded in an inward state, and by

springs

206 and 2602 connected to both sides of the flexible display In a structure that responds to the change in length during the folding process, the folding part 3101 of the flexible display is fixed to the hinge 103 so that when the foldable smartphone is folded, the flexible display can be folded without being separated from the main body. There is.

By using the structure that can be folded in the direction of the flexible display of the present invention, it is possible to use it like a notebook computer.

When rotated in this structure, one display can be used as a screen, and the other display can be used as a keypad or a touch pad.

(a) shows a structure in which one screen of the foldable display 201 of the present invention is rotated forward. One screen 203 is used as a display, and the other screen 204 is a keypad or a side view of a structure used as a touch pad. Represents.

The foldable portion 3101 of the flexible display is fixed to the hinge so that the foldable portion of the display is not separated from the main body during the forward folding process.

(b) is a perspective view of a structure in which one screen of the foldable display 201 of the present invention is rotated forward. One screen 203 is used as a display, and the other screen 204 is a keypad or a touch pad. Represents.

According to the structure of the present invention, a foldable smartphone can be used in more various ways, and in an out-fold structure in which the foldable smartphone is folded outward of the display, the other party can see the camera screen when viewing the screen from both sides or taking a picture with the camera. It can be used for such purposes as can be used, and in an in-fold structure that folds a foldable smartphone in the direction of the display, it can be used like a laptop.

In the foldable smartphone that can be folded in the inner direction of the flexible display while being able to increase the area of the screen of the present invention, or that can be folded in the outer direction of the flexible display, when used like a notebook, a foldable smartphone having the structure of the present invention Since the outer part of the main body of the main body of the foldable smartphone can be lengthened in the horizontal direction, the screen can be widely used by increasing the area of the display exposed to the front.

(a) shows a structure in which one screen of the foldable display 201 of the present invention is rotated forward as a structure before the screen is enlarged.

In (b), each of the

screens

203 and 204 of the flexible display can be widened by pulling the extensions 102-S and 104-S in the structure of the present invention.

As in the structure of the present invention, when the screen is wider when used like a notebook computer, there is an advantage in that the display screen is wide and the keyboard screen can be widely used or a touch pad can be added.

In (a), one screen of the foldable display 201 of the present invention is rotated forward as a structure before the screen is stretched. One screen 203 is used as a display, and the other screen 204 is a keypad or touch Shows the side view of the structure used as a pad.

In (b), as a structure in which the screen is increased, the display screen 203 is widely used, and the keyboard screen 204 is widely used, and a touch pad 3501 function can be added.

Since the screen of a smartphone basically supports the touch function, it can be used as a touch pad function by designating a certain area in the software.

In this way, the usability of the foldable smartphone can be expanded by the structure of the present invention.

As a foldable electronic device of the present invention, a spring can be used to move according to a change in length in the process of folding or unfolding a flexible display that is not attached to the body of the electronic device as a technology applied to a smartphone, tablet, or notebook, In addition to the spring, an electric motor may be used or a polymer elastic body such as rubber may be used.

The flexible display can be used without being wrinkled or damaged by allowing the flexible display to move to cope with the change in length during the folding or unfolding process of the foldable electronic device by various methods included in the present invention.

In the description of the present invention, the foldable smartphone is described as a structure that is folded once, but the structure of the present invention can be used for a smartphone or an electronic device that is folded twice or more.

In addition, the structure of the foldable electronic device of the present invention that can be extended and extended horizontally can also be used for tablets or laptops, including smartphones.

In the structure of the present invention, since both ends of the display are not fixed and move by being connected to a spring in the process of folding or unfolding, electrical connection for driving the display is important.

In general, if there is a moving part such as a flint header of an inkjet printer, the electronic circuit board to be connected is made to move like the moving part of the electrically connected part using a flexible electronic circuit board (FPCB).

(a) is a side cross-sectional view, in which one end of the flexible display 205 is connected to the spring 206 and the flexible electronic circuit board 3602 is bent on the electronic circuit board 3601 driving the display. Indicates connected.

(b) is a side cross-sectional view, in which one end of the flexible display 205 is connected to the spring 206 and the flexible electronic circuit board 3602 is connected to the electronic circuit board 3601 driving the display in a curved structure. In this case, when the flexible display moves as the spring is extended by folding or pulling the extension part of the foldable phone, the curved part of the flexible electronic circuit board 3602 connected to the flexible display is pulled according to the movement of the flexible display.

In this way, an electrical connection to a moving electronic connection is possible using a general flexible electronic circuit board.

In the present invention, in addition to the method of connecting the flexible display to an elastic body such as a spring on the back of the smartphone, a small electric motor is installed on the rear of the smartphone, and the flexible display is connected to the axis of the small electric motor and viewed by the electric motor. When the foldable smartphone of the present invention is unfolded or folded, in a change in increasing or decreasing the area of the front of the smartphone in the unfolded state, the electric motor can be operated to respond to changes in the flexible display area of the front of the smartphone.

As described above, although it has been described with reference to a preferred embodiment of the present invention

Those skilled in the art will appreciate that various modifications and changes can be made to the present invention without departing from the spirit and scope of the present invention described in the following claims.

In the foldable smartphone of the present invention, the flexible display goes to the back of the smartphone or the front of the smartphone so that it can respond to the change in the area of the front of the smartphone that occurs when the foldable smartphone is opened or folded. Even if the flexible display does not increase by itself, it can function in a foldable smartphone, thereby increasing the durability of the foldable smartphone.

In addition, it is possible to increase the effectiveness of the display area and ratio, such as making the front display area close to 16:9 by adding the function to increase the foldable smartphone that can be folded or unfolded. It is possible to manufacture mobile devices that are compatible with smartphones, tablets, or notebook computers, which dramatically increases the usability of consumers, and has a great industrial effect on mobile devices.

Claims

In a foldable smartphone equipped with a flexible display,

One side of the flexible display is attached to and fixed to the main body of the smartphone, centering on the foldable part of the foldable smartphone.

In addition to the fixed part of the flexible display, the flexible display of the part where the body is bent is a separate structure that is not fixed because it is not adhered to the body.

The end of the flexible display that is not fixed to the body of the smartphone is connected to the spring,

The other side of the spring is connected to the body of the smartphone, or

The flexible display on both sides of the foldable smartphone is a separate structure that is not fixed to the main body of the smartphone.

Each end of the flexible display is connected to a spring,

Foldable smartphone, characterized in that the other side of each spring is connected to the body of the smartphone
The method according to claim 1,

When the holdable smartphone is folded, the flexible display moves as the spring increases as the length increases.

A foldable smartphone characterized in that the flexible display moves as the spring decreases by the length that decreases when the foldable smartphone is opened.
The method according to claim 1,

In the part where the body of the flexible display and the foldable smartphone are not fixed,

A collapsible smartphone, characterized in that a magnetic layer for pulling force is formed on the bottom of the flexible display and on the top of the foldable smartphone facing it.
The method according to claim 1,

In the part where the body of the flexible display and the foldable smartphone are not fixed,

A foldable smartphone, characterized in that an electrode and an insulating layer for applying electricity are formed on the bottom of the flexible display and on the top of the foldable smartphone that faces it.
The method of claim 4,

By applying electricity in the opposite direction to the electrode at the bottom of the flexible display and the electrode at the top of the foldable smartphone body, the pulling force acts,

A foldable smartphone, characterized in that a pushing force acts by applying electricity in the same direction to the electrode at the bottom of the flexible display and the electrode at the top of the foldable smartphone body.
The method according to claim 1,

The spring to which the flexible display that is not fixed to the main body of the foldable smartphone is connected is formed on the back of the smartphone body,

A foldable smartphone, characterized in that the flexible display is wound on the side of the foldable smartphone and bent to the back and is connected to a spring
The method according to claim 1,

A protective film is attached to the flexible display,

Foldable smartphone, characterized in that the end of the protective film is connected to a spring
The method according to claim 1,

A foldable smartphone, characterized in that the position of the flexible display on the front changes according to the folding angle of the foldable smartphone
The method of claim 8,

Is the angle at which the foldable smartphone is folded,

A foldable smartphone, characterized in that the flexible display screen displayed on the front is adjusted by calculating the moving length of the flexible display when the foldable smartphone is folded.
The method of claim 8,

The video recorded by the camera mounted on the foldable smartphone appears on both screens centering on the folded part,

A foldable smartphone, characterized in that an image from the camera is displayed according to the changing position of the flexible display according to the folding angle of the foldable smartphone.
The method according to claim 1,

A foldable smartphone, characterized in that the foldable smartphone has at least one hinge formed on the foldable portion of the smartphone.
The method according to claim 1,

A foldable smartphone, characterized in that the spring pulls the flexible display while the foldable smartphone is opened.
The method according to claim 1,

As a structure of a smartphone that can be rolled up,

The flexible display is folded outward, or

A foldable smartphone, characterized in that it includes a structure in which the flexible display is folded inward
The method according to claim 1,

A foldable smartphone characterized in that one main body or both main bodies can extend horizontally around the foldable part of the foldable smartphone
The method of claim 14,

The main body of the foldable smartphone is divided into two or more parts,

When one part of the main body is pulled, the length of the main body is increased while being separated from the other part of the main body.

Foldable smartphone characterized in that the length is reduced again when pushed in the stretched state
The method of claim 14,

When the length is increased by pulling a part of the main body of the foldable smartphone, the flexible display moves as the spring increases as the length increases.

A foldable smartphone characterized in that when the length of the foldable smartphone is reduced by pushing a part of the main body, the flexible display moves as the spring decreases by the length that decreases.
In a foldable electronic device (Foldable Electronic Device) equipped with a flexible display (Flexible Disp; lay),

One side of the flexible display is attached to and fixed to the body of the electronic device with the foldable part of the foldable electronic device as the center.

In addition to the fixed part of the flexible display, the flexible display of the part where the body is bent is a separate structure that is not fixed because it is not adhered to the body.

The ends of the flexible display that are not fixed to the body of the electronic device are connected to parts that can be pulled or pushed.

The flexible display on both sides of the foldable electronic device is a separate structure that is not fixed to the body of the electronic device.

Foldable electronic device, characterized in that both ends of the flexible display are connected to parts that can be pulled or pushed respectively
The foldable electronic device of claim 17, wherein the foldable electronic device includes a smartphone, a tablet, or a notebook.
The method of claim 17,

A foldable electronic device characterized in that one body or both bodies can extend horizontally around the foldable part of the foldable electronic device
The method of claim 17,

The main body of the foldable electronic device is divided into two or more parts,

When one part of the main body is pulled, the length of the main body is increased while being separated from the other part of the main body.

Foldable electronic device characterized in that the length is reduced again when pushed in the stretched state
The method of claim 17,

A foldable electronic device characterized in that the part that can be pulled or pushed is an electric motor, a spring, or a polymer elastic body.
The method of claim 17,

Foldable electronic device, characterized in that the flexible display moves when folding or unfolding the foldable electronic device
In an electronic device equipped with a flexible display,

Electronic devices that can be folded or unfolded,

An electronic device with a flexible display capable of changing the size of a screen, characterized in that the electronic device can be increased or decreased
The method of claim 23,

An electronic device with a flexible display capable of changing the size of the screen, characterized in that the electronic device can be stretched in a direction in which the electronic device can be folded
The method of claim 23,

The process of folding or unfolding electronic devices,

In the process of increasing or decreasing electronic devices,

An electronic device having a flexible display capable of changing the size of a screen, characterized in that the flexible display slides on the surface of the body of the electronic device
The method of claim 23,

One or both ends of the flexible display are connected to an elastic body attached to an electronic device, or

An electronic device having a flexible display capable of changing the size of a screen, characterized in that it is connected to an electric motor mounted on the electronic device.
The method of claim 23,

Can measure the angle of the electronic device folding or unfolding,

An electronic device with a flexible display capable of changing the size of a screen, characterized in that the length of the electronic device increases or decreases is measured
The method of claim 23,

Can measure the angle of the electronic device folding or unfolding,

Measuring the varying length of the process of increasing or decreasing electronic devices,

Software that calculates the area of the flexible display corresponding to the measured angle or the measured length, and

An electronic device with a flexible display capable of changing the size of a screen, characterized in that the software for displaying a screen matching the calculated flexible display is installed
In a foldable and stretchable foldable smartphone equipped with a flexible display,

The flexible display on both sides of the foldable smartphone is a separate structure that is not fixed to the main body of the smartphone.

Each end of the flexible display is connected to a spring,

The other side of each spring is connected to the body of the smartphone,

Electronic device with a foldable flexible display, characterized in that the central part of the flexible display is attached to the main body
The method of claim 26,

An electronic device with a foldable flexible display, characterized in that the portion where the flexible display is adhered to the main body of the foldable smartphone is adhered to and fixed to a hinge that is the foldable portion of the foldable smartphone.
The method of claim 29,

When folding the foldable smartphone with the display inside, the foldable part of the flexible display is fixed to the body,

In the part where the flexible display is not fixed, the springs at both ends increase or decrease according to the length change in the process of folding the foldable smartphone, and the foldable flexible display is equipped with a foldable flexible display characterized in that it is folded in a pulling state. Electronics
The method of claim 31,

When the foldable smartphone is folded with the display inside, the interior angle is folded between 90 degrees and 180 degrees, like the structure of opening a notebook.

The upper side of the flexible display of the foldable smartphone is used as a display,

An electronic device with a foldable flexible display, characterized in that the lower side of the flexible display has a structure in which a keyboard or a touch pad appears on the display as a screen to allow key input and touch input.
The method of claim 32,

In the structure where the foldable smartphone is folded between 90 degrees and 180 degrees, like the structure with a laptop open,

An electronic device with a foldable flexible display, characterized in that a portion used as a display of the flexible display and a portion used as a keyboard or a touch pad can be respectively increased
The method of claim 29,

When folding the foldable smartphone with the display outward, the foldable part of the flexible display is fixed to the body,

In the part where the flexible display is not fixed, the springs at both ends increase or decrease according to the length change in the process of folding the foldable smartphone, and the foldable flexible display is equipped with a foldable flexible display characterized in that it is folded in a pulling state. Electronics
The method of claim 32,

In the structure where the foldable smartphone is folded between 180 degrees and 360 degrees, like the structure with a laptop open,

An electronic device with a foldable flexible display, characterized in that the display screens on both sides of the flexible display can be respectively increased.