KR102331960B1 - Flexible device and methods for controlling operation thereof - Google Patents

Abstract

A flexible device is disclosed. The device includes a plurality of motion detection sensors mounted at different positions, a storage unit in which operation information of the flexible device corresponding to the bending shape is stored, and a bending shape of the flexible device using respective sensing values of the plurality of motion detection sensors. and a controller for controlling to perform an operation corresponding to the determined bending shape based on the determined operation information stored in the storage unit. Accordingly, it is possible to more accurately determine the bending shape.

Description

Flexible device and its operation control method { FLEXIBLE DEVICE AND METHODS FOR CONTROLLING OPERATION THEREOF }

The present invention relates to a flexible device and a method for controlling an operation thereof, and more particularly, to a flexible device for detecting a bending shape using a plurality of motion detection sensors and performing an operation according to the bending shape, and a method for controlling an operation thereof .

With the development of electronic technology, various types of electronic devices are being developed. In particular, display devices such as TVs, PCs, laptop computers, tablet PCs, mobile phones, MP3 players, etc. have a high penetration rate to be used in most homes.

In particular, in recent years, in order to meet the needs of users who want newer and more diverse functions, efforts are being made to develop a display device in a newer form. This is the so-called next-generation display device.

A flexible display device is an example of a next-generation display device. The flexible display device refers to a display device having a property that can be deformed like paper.

A flexible device having a flexible characteristic, such as a flexible display device, can be used for various purposes because a user can apply a force to bend the device to deform the shape. For example, it may be implemented as a portable device such as a mobile phone, a tablet PC, an electronic picture frame, a PDA, or an MP3 player.

On the other hand, conventional electronic devices are generally controlled by a user's touch operation or button operation. However, as described above, the flexible device has a characteristic of being flexible.

Therefore, the need for a new manipulation mechanism using the characteristics of such a flexible device has emerged.

The present invention has been made in accordance with the above-mentioned necessity, and an object of the present invention is to provide a flexible apparatus for effectively determining a bending shape using a plurality of motion detection sensors and a method for controlling an operation thereof.

A flexible device for achieving the above object includes a plurality of motion detection sensors respectively mounted at different positions in the flexible device, a storage unit in which operation information of the flexible device corresponding to a bending shape is stored, and the plurality of motion detection sensors and a control unit that determines a bending shape of the flexible device by using each sensing value, and controls to perform an operation corresponding to the determined bending shape based on the operation information stored in the storage unit.

The control unit obtains a change in the sensing value of each of the plurality of motion detection sensors, and determines the bending form using a difference between the changed sensing values, wherein the bending form includes a bending degree and a bending direction can do.

Here, the plurality of motion detection sensors may be sensors that detect a change in posture based on at least one of three-dimensional spatial axes.

The plurality of motion detection sensors may be respectively disposed in a corner region of the flexible device.

Alternatively, the plurality of motion detection sensors may include a first motion detection sensor disposed in a center of a first edge region among edge regions of the flexible device and a second motion detection sensor disposed opposite the first edge region among edge regions of the flexible device. It may include a second motion detection sensor disposed in the center of the edge region.

In addition, the flexible device may further include a touch sensor for sensing a user's touch. In this case, the controller may activate the plurality of motion detection sensors according to the user's touch.

In addition, the flexible device may further include a bend sensor for detecting a bending state of the flexible device. In this case, the controller may determine the bending shape by using an output value of the bend sensor and sensing values of the plurality of motion detection sensors.

In addition, when a preset calibration type is detected, the control unit calculates a compensation value based on a sensing value output from the bend sensor while the calibration type is detected, and uses the compensation value to a sensing value of the bend sensor can be compensated for

In addition, the plurality of motion detection sensors may include at least one of an acceleration sensor, a geomagnetic sensor, and a gyro sensor.

In addition, the control unit may include general bending, folding, bending and move, bending and flat, bending and twisting, twist, swing, At least one of shaking and rolling may be determined.

Alternatively, the flexible device may be implemented as a flexible display device further including a display unit that displays a screen according to an operation performed according to the bending shape.

In this case, when bending occurs while the display unit is displaying a plurality of menus, the controller performs a menu navigation operation for the plurality of menus according to the bending shape, and the menu navigation operation is a menu movement. The operation may include at least one of an operation, a menu selection operation, a menu page switching operation, a menu scroll operation, an upper and lower menu display operation, and an upper and lower menu switching operation. Meanwhile, according to an embodiment of the present invention, a method for controlling an operation of a flexible device includes outputting a sensing value from a plurality of motion detection sensors respectively mounted at different positions of the flexible device, each of the plurality of motion detection sensors and determining a bending shape in which the flexible device is bent by comparing the sensing values of , and performing an operation corresponding to the bending shape.

The determining of the bending shape may include obtaining a change in the sensing value of each of the plurality of motion detection sensors and determining the bending shape using a difference between the changed sensing values. In addition, the bending shape may include a bending degree and a bending direction.

Here, the plurality of motion detection sensors may be sensors that detect a change in posture based on at least one of three-dimensional spatial axes. In the determining of the bending shape, at least one of a bending direction, a bending degree, a bending area, and a bending shape may be determined by comparing the results of the posture change detected by the plurality of motion detection sensors.

The plurality of motion detection sensors may be respectively disposed in a corner region of the flexible device.

Alternatively, the plurality of motion detection sensors may include a first motion detection sensor disposed in a center of a first edge region among edge regions of the flexible device and a second motion detection sensor disposed opposite the first edge region among edge regions of the flexible device. It may include a second motion detection sensor disposed in the center of the edge region.

Alternatively, the above-described operation control method may further include activating the plurality of motion detection sensors when a user touch is sensed by the touch sensor.

Alternatively, the flexible device may include a bend sensor for detecting a bending state of the flexible device. In this case, the determining of the bending shape may include determining the bending shape using sensing values of the bend sensor and the plurality of motion detection sensors.

And, when a preset calibration type is detected, calculating a compensation value based on the sensing value output from the bend sensor while the calibration type is detected, using the compensation value to compensate the sensing value of the bend sensor It may include further steps.

In addition, the plurality of motion detection sensors may include at least one of an acceleration sensor, a geomagnetic sensor, and a gyro sensor.

In addition, the bending may include at least one of general bending, folding, bending and move, bending and flat, bending and twisting, twisting, swinging, shaking, and rolling.

Meanwhile, the above-described operation control method may further include displaying a screen according to an operation performed according to the bending shape.

In addition, the operation control method may further include displaying a plurality of menus and performing a menu navigation operation on the plurality of menus according to a bending form when bending for the menu navigation operation occurs.

Here, the menu navigation operation may include at least one of a menu movement operation, a menu selection operation, a menu page switching operation, a menu scroll operation, a display operation of upper and lower menus, and an operation of switching between upper and lower menus.

According to various embodiments of the present invention as described above, it is possible to effectively detect a bending shape using a plurality of motion detection sensors. Accordingly, it is possible to conveniently control the operation of the flexible device using bending.

1 is a block diagram showing the configuration of a flexible device according to an embodiment of the present invention;
2 is a block diagram showing an example of a motion detection sensor;
3 is a view for explaining the axial direction of a plurality of motion detection sensors disposed in the flexible device;
4 is a diagram illustrating a reference axis coordinate system for detecting a bending shape of a flexible device;
5 is a view showing a bending form in which the center of the flexible device is bent in an upward direction;
6 is a view showing a change in the sensing value of the motion detection sensor when the bending of FIG. 5 occurs;
7 is a view showing a bending form in which the center of the flexible device is bent downward;
8 is a view showing an axial change of the motion detection sensor when a twist occurs in the first direction;
9 is a view showing an axial change of the motion detection sensor when a twist occurs in the second direction;
10 is a view showing the axis change of the motion detection sensor when bending and twisting occurs;
11 is a view showing the configuration of a flexible device including three motion detection sensors;
12 is a diagram illustrating an axis change of a motion detection sensor when multi-bending occurs in a flexible device including three motion detection sensors;
13 is a diagram illustrating an axis change of a motion detection sensor when multi-bending occurs in a flexible device including four motion detection sensors;
14 is a diagram illustrating an axis change of a motion detection sensor when bending and move occurs in a flexible device including three motion detection sensors;
15 is a view showing an axis change of a motion detection sensor when a flicking motion occurs in a flexible device including three motion detection sensors;
16 and 17 are diagrams illustrating an axis change of a motion detection sensor when shaking occurs in a flexible device including three motion detection sensors;
18 is a view showing the configuration of a flexible device in which four motion detection sensors are disposed at the corners;
19 to 21 are diagrams showing the configuration of a flexible device in which a plurality of motion detection sensors are distributed;
22 is a view for explaining a system for controlling an external device using a flexible device;
23 is a block diagram illustrating a configuration of a flexible display device according to various embodiments of the present disclosure;
24 is a view showing a configuration of a display unit included in the flexible display device of FIG. 23;
25 to 38 are diagrams for explaining various methods of detecting a bending shape of a flexible display device using a bend sensor;
39 is a view showing the configuration of a flexible display device including both a bend sensor and a plurality of motion detection sensors;
40 and 41 are diagrams for explaining a method of performing calibration for a bend sensor;
42 is a block diagram illustrating a configuration of a flexible display device according to various embodiments of the present disclosure;
43 is a diagram showing the configuration of the program stored in the storage unit of FIG. 42;
44 and 45 are diagrams for explaining an embodiment of activating an operation of a motion detection sensor according to a user's touch;
46 to 54 are views for explaining various examples of operations performed according to the bending form;
55 is a view showing another example of the external configuration of the flexible display device;
56 is a view showing a shape of a flexible display device in which a power supply unit is detachable;
57 and 58 are views showing various external configuration examples of a flexible display device, and
59 is a flowchart illustrating an operation control method of a flexible device according to various embodiments of the present disclosure.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing the configuration of a flexible device according to an embodiment of the present invention. Referring to FIG. 1 , a flexible apparatus 100 includes a plurality of motion detection sensors 110 - 1 to 110 -n , a controller 120 , and a storage unit 130 .

The flexible device 100 may be implemented as various types of flexible display devices such as mobile phones, tablet PCs, laptop computers, MP3 players, electronic picture frames, e-books, TVs, monitors, etc., and various types such as remote controls, input pads, and mice. It can also be implemented as a device of

The plurality of motion detection sensors 110 - 1 to 110 - n may be respectively mounted at different positions in the body portion of the flexible device 100 . The body part means a main body of the flexible device 100 including a housing covering the internal components of the flexible device 100 .

The storage unit 130 stores information on various bending shapes and operation information of the flexible device corresponding to each bending shape.

The controller 120 determines the bending shape by comparing the sensing values of the plurality of motion detection sensors 110-1 to 110-n, respectively. Then, based on the operation information stored in the storage unit 130 , an operation corresponding to the determined bending type is performed. Examples of types of bending and operations corresponding thereto will be described in detail in the following section.

Each of the motion detection sensors 110-1 to 110-n may detect a change in posture based on at least one of three-dimensional spatial axes. Specifically, the motion detection sensors 110-1 to 110-n may be implemented as various sensors such as a gyro sensor, a geomagnetic sensor, an acceleration sensor, and the like. The acceleration sensor outputs a sensing value corresponding to the gravitational acceleration that is changed according to the inclination of the device to which the sensor is attached. The gyro sensor is a sensor that detects the angular velocity by measuring the Coriolis force acting in the direction of the speed when rotational motion occurs. The geomagnetic sensor is a sensor for detecting an azimuth.

2 illustrates a case in which the motion detection sensor includes an acceleration sensor. Referring to FIG. 2 , the motion detection sensor 110 includes a driving signal generator 111 , an acceleration sensor 112 , a signal processor 113 , and a sensor controller 114 .

The driving signal generator 111 serves to generate a driving signal for driving the acceleration sensor 112 . The driving signal may be generated in the form of a pulse signal and an inverted pulse signal and provided to the acceleration sensor 112 .

The acceleration sensor 112 may be implemented with two axes or three axes. For example, when implemented as a two-axis acceleration sensor, the acceleration sensor 112 includes mutually orthogonal X and Y-axis acceleration sensors (not shown). When implemented as a three-axis acceleration sensor, the acceleration sensor 112 includes X, Y, and Z-axis acceleration sensors disposed in different directions and orthogonal to each other.

The signal processing unit 113 converts the output values of the X, Y, and Z-axis acceleration sensors into digital values and provides them to the sensor control unit 114 . The signal processing unit 113 may include a chopping circuit, an amplifying circuit, a filter, and an A/D converter. Accordingly, after chopping, amplifying, and filtering the electrical signal output from the 3-axis acceleration sensor, it is converted into a digital voltage value and output.

The sensor controller 114 outputs a control signal to the driving signal generator 111 to control whether or not the driving signal is provided. The motion detection sensor 110 may be controlled to be activated or deactivated according to the control of the sensor controller 114 .

When the acceleration sensor 112 is activated and the output value of each axis acceleration sensor is output and processed by the signal processing unit 113, the sensor control unit 114 performs a normalization operation of mapping the output value of each axis to a preset range. , calculate the pitch angle and roll angle using the normalized values.

For example, when a two-axis acceleration sensor is provided, the sensor controller 114 may perform a normalization operation using the following equation.

In Equation 1, Xt and Yt are the output values of the X-axis and Y-axis acceleration sensors, _{respectively, Xt norm} and Yt _norm are the normalized values of the X-axis and Y-axis acceleration sensors, respectively, and Xt _{max and Xt min} are the maximum and minimum values of Xt, respectively. , Yt _max and Yt _min are the maximum and minimum values of Yt, respectively, Xt _offset and Yt _offset are the X and Y axis acceleration sensor offset values, and Xt _Scale and Yt _Scale are the X and Y axis acceleration sensor scale values. Xt _offset , Yt _offset , Xt _Scale , and Yt _Scale are calculated by rotating the flexible device 100 on which the acceleration sensor 110 is mounted several times in advance, and the acceleration sensor 110 is stored in a memory or storage unit 130 provided inside. You can save it.

The sensor controller 114 may calculate the pitch angle and the roll angle by substituting the normalized axial acceleration sensor values as in Equation 1 into the following equations.

In Equation 2, θ denotes a pitch angle and φ denotes a roll angle.

On the other hand, even when implemented as a 3-axis acceleration sensor type, the sensor control unit 114 performs a normalization operation of mapping each of the X, Y, and Z-axis acceleration sensor output values received through the signal processing unit 113 to values within a preset range. and can calculate the pitch angle and the roll angle using the normalized values.

The sensor controller 114 provides information on the calculated pitch angle and roll angle to the controller 120 . The control unit 120 compares the bending shape information stored in the storage unit 130 with the information provided from the sensor control unit 114 to determine the bending shape.

To this end, various bending shape information is stored in the storage unit 130 . The bending shape information refers to information defining an operation of bending, bending, or twisting the flexible device 100 to deform its shape or defining characteristics of the shape. Specifically, general bending, folding, multi-bending, bending-and-move, bending-and-flat, bending-and-hold, bending-and-twisting, twisting, swinging, shaking, Various types of bending such as rolling may be set. The storage unit 130 may store a motion detection sensor value when each bending occurs, operation information on a control operation matching the bending type, and the like.

The bending form information may be set in various ways according to the number, arrangement position, axial direction, type, etc. of the motion detection sensors. Hereinafter, a method of determining a bending shape using a motion detection sensor will be described in detail.

< Determination of bending shape using motion detection sensor >

3 is a diagram illustrating a configuration of a flexible device in which two motion detection sensors are disposed. Referring to FIG. 3 , two motion detection sensors 110 - 1 and 110 - 2 are disposed at both edges of the flexible device. In FIG. 3 , each of the motion detection sensors 110-1 and 110-2 is implemented as a three-axis acceleration sensor such as X, Y, and Z, and the axes of the two motion detection sensors 110-1 and 110-2 are the same as each other. placed in the direction

That is, the X1 axis of the first motion detection sensor 110 - 1 is disposed to face the right edge direction of the flexible device 100 , the Y1 axis is disposed to face the lower edge direction of the flexible device 100 , and the Z1 axis is X1 and the Y1 axis is arranged to face a vertical downward direction with respect to the plane. The X2, Y2, and Z2 axes of the second motion detection sensor 110 - 2 are also respectively disposed in the same direction. Among these axes, the angle rotated about the X1 and X2 axes is the roll angle, the angle rotated about the Y1 and Y2 axes is the pitch angle, and the angle rotated about the Z1 and Z2 axes is the yaw angle ( It can be defined as the yaw angle).

The controller 120 may detect a change in posture by comparing the values sensed on each axis of the motion detection sensors 110 - 1 and 110 - 2 with a reference coordinate system.

4 shows an example of a reference coordinate system. According to FIG. 4 , in a state in which the flexible device is laid flat, Z0 is defined as a direction in which gravity acts, X0 is defined as the east side, and Y0 is defined as the south side.

The controller 120 may calculate the pitch angle and the roll angle using Equations 1 and 2 described above.

Alternatively, the controller 120 may calculate the pitch angle and the roll angle by applying the sensing values output from the motion detection sensors 110-1 and 110-2 and the reference coordinate system to the following equations.

According to Equation 3, the g- _{transformation coordinate} system can be obtained by multiplying the g- _{reference coordinate system by the coordinate transformation matrix.} In Equation 3, gx, gy, and gz represent components of the gravitational acceleration detected in the X, Y, and Z axes. Specifically, it may be an output value of each axis of the X, Y, and Z axis acceleration sensors. And, θ is a pitch angle, φ is a roll angle, Ψ is a yaw angle, and g is a gravitational acceleration.

Summarizing Equation 3, the pitch angle and the roll angle can be expressed as the following Equation.

The controller 120 may calculate the pitch angle and the roll angle using 4 .

5 is a view illustrating a bending form in which a center portion of the flexible device is bent in an upward direction.

According to FIG. 5 , when the right edge and the left edge of the flexible device are bent to face downward, respectively, the X1 axis of the first motion detection sensor 110-1 and the X2 axis of the second motion detection sensor 110-2 are Each is directed downwards where gravity acts. In addition, the Z1 axis and the Z2 axis are oriented to face each other. On the other hand, the Y1 axis and Y2 axis remain parallel to the previous axis direction.

FIG. 6 is a diagram illustrating a change in a sensing value of a motion detection sensor when bending of the form shown in FIG. 5 occurs. According to (a) of FIG. 6 , the X1 axis and the Z1 axis of the first motion detection sensor 110 - 1 disposed on the right edge are respectively moved to the left compared to the X0 axis and the Z0 axis of the reference coordinate system.

In addition, according to (b) of FIG. 6 , the X2 axis and the Z2 axis of the second motion detection sensor 110 - 2 disposed on the left edge are respectively moved to the right compared to the X0 axis and the Z0 axis of the reference coordinate system.

When the disposition direction of the first and second motion detection sensors 110-1 and 110-2 is changed as shown in FIG. 6, the gravitational acceleration component distributed to each axis is sensed and output by each axis sensor. The control unit 120 compares the output values of each axis to confirm the relationship between the X1 value and the X2 value, and the Z1 value and the Z2 value. Accordingly, it is determined that bending in the form of bending the central region of the flexible apparatus 100 upward has been performed.

7 is a view illustrating bending in a form in which a central portion of the flexible device is bent in a downward direction. Referring to FIG. 7 , the right edge and the left edge of the flexible device face upward, respectively, by bending. Accordingly, the X1 axis of the first motion detection sensor 110-1 and the X2 axis of the second motion detection sensor 110-2 are directed upward, respectively, in the opposite direction of gravity. Also, the Z1 axis and the Z2 axis are oriented in opposite directions. On the other hand, the Y1 axis and Y2 axis remain parallel to the previous axis direction.

The bending of FIGS. 5 and 7 is a state in which a bending region or a bending shape is the same, but the bending direction is opposite. Accordingly, when the bending of FIGS. 5 and 7 is performed, the signs of the X-axis and Z-axis accelerations are reversed.

As shown in FIGS. 5 and 7 , when normal bending is performed in which the center is bent upward or downward, the directions of the X1, X2, Z1, and Z2 axes are changed. As described above, the direction change of the Z1 and Z2 axes with respect to the Z0 axis means the yaw angle. However, since the acceleration sensor measures the same gravitational acceleration, the yaw angle cannot be measured. Accordingly, bending may be determined by separately measuring the yaw angle using the geomagnetic sensor or the gyro sensor, or by detecting only the change in the pitch angle.

Meanwhile, although FIGS. 5 and 7 show general bending in which the center is bent upward or downward, the general bending includes bending of one edge region. That is, if the output value of one of the first and second motion detection sensors 110-1 and 11-2 is maintained and only the output value of the other is changed, the controller 120 controls the edge at which the motion detection sensor is disposed. Assume that the area is bent. In this case, if the degree of change in the output value is less than or equal to the threshold value, the controller 120 may determine that the edge region is bent as normal bending, and if the degree of change exceeds the threshold, it may be determined that it is folding.

As described above, in addition to general bending and folding, bending may include bending and move, bending and flat, bending and hold, bending and twisting, twisting, swinging, shaking, rolling, and the like.

8 and 9 are diagrams for explaining twist.

According to FIG. 8 , a twisting operation is performed such that the lower right corner and the upper left corner of the flexible device 100 rise in the opposite direction to gravity, and the upper right corner and the lower left corner of the flexible device 100 go down in the direction of gravity.

According to FIG. 9 , a twisting operation is performed such that the upper right corner and the lower left corner of the flexible device 100 rise in the opposite direction to gravity, and the lower right corner and the upper left corner of the flexible device 100 go down in the direction of gravity.

As shown in FIGS. 8 and 9 , when twist occurs, the X1 and X2 axes maintain the same direction as the X0 axis, but the Y1, Y2, Z1, and Z2 axes rotate with respect to the reference axis, respectively. Accordingly, the roll angle is changed. The control unit 120 calculates a pitch angle and a roll angle by using the respective axis sensing values of the first and second motion detection sensors 110-1, and detects changes in absolute values and signs thereof. Accordingly, it can be determined whether the twist has occurred.

10 shows a state in which normal bending is performed in some areas and bending and twisting occurs in other areas where twisting is performed. Referring to FIG. 10 , the left edge region of the flexible device 100 is bent downward, and the lower right edge point is twisted to rise in a direction opposite to gravity. Accordingly, the axes of the first and second motion detection sensors 110 - 1 and 110 - 2 are changed as shown in FIG. 10 . When a change in the roll angle is detected by the first motion detection sensor 110-1 and a change in the pitch angle is detected by the second motion detection sensor 110-2, the controller 120 determines that bending and twist has occurred. In this case, the controller 120 determines the degree of bending by using the pitch angle calculated based on the output value of the second motion detection sensor 110 - 2 . In addition, the controller 120 determines the twist degree using the roll angle calculated based on the output value of the first motion detection sensor 110 - 1 .

In the above embodiments, it has been described that the controller 120 compares the output value of the motion detection sensor with reference to the reference coordinate system, but in addition to the reference coordinate system, it is also possible to detect whether bending is based on the initial coordinate system set through a training process. That is, when a user setting command is input in a state in which the flexible apparatus 100 is flattened, the sensing value of each motion detection sensor at that point in time is stored as a reference value. Thereafter, the controller 120 may detect whether bending is performed by comparing the sensed value of the motion detection sensor with a stored reference value.

In the above embodiment, a method of determining a bending shape when two motion detection sensors are provided has been described, but the number of motion detection sensors may be implemented as three or more.

11 shows the configuration of a flexible device including three motion detection sensors. Referring to FIG. 11 , the flexible device includes a first motion detection sensor 110-1 and a second motion detection sensor 110-2 disposed in both edge regions, and a third motion detection sensor 110- disposed in a central region. 3) is included.

12 shows a cross-sectional configuration of the flexible device of FIG. 11 . According to (a) of FIG. 12 , the third motion detection sensor 110-3 is X3, Y3, Z3 disposed in the same shape as the axes of the first and second motion detection sensors 110-1 and 110-2. have an axis The third motion detection sensor 110 - 3 may be disposed at a point where the bending direction changes when multi-bending occurs in two or more areas, that is, at a position corresponding to an inflection point.

In this state, as shown in FIG. 12(b), when multi-bending occurs in two or more areas, the first to third motion detection sensors 110-1, 110-2, 110-3 The Y1, Y2, and Y3 axes remain parallel to the Y0 axis, and the X1, X2, X3 axes and the Z1, Z2, and Z3 axes rotate with respect to the Y0 and Z0 axes, respectively. The controller 120 calculates each pitch angle based on the output values of the first to third motion detection sensors 110-1, 110-2, and 110-3. The controller 120 compares the pitch angles calculated by each of the first to third motion detection sensors 110-1, 110-2, and 110-3 to determine whether multi-bending has occurred.

13 is a diagram illustrating a configuration of a flexible device including four motion detection sensors 110-1 to 110-4. According to (a) of FIG. 13 , the first and second motion detection sensors 110-1 and 110-2 are disposed in both edge regions, and the third and fourth motion detection sensors 110-3 and 110-4 ) is placed in between. The axial directions of the first to fourth motion detection sensors 110-1 to 110-4 are the same.

In this state, as shown in (b) of FIG. 13 , when multi-bending in which three places are bent occurs, the first to fourth motion detection sensors 110-1, 110-2, 110-3, and 110-4 The Y1, Y2, Y3, Y4 axes are kept parallel to the Y0 axis, and the X1, X2, X3, X4 axes and the Z1, Z2, Z3, Z4 axes rotate about the Y0 and Z0 axes, respectively. The controller 120 calculates each pitch angle based on the output values of the first to fourth motion detection sensors 110-1, 110-2, 110-3, and 110-4. The controller 120 compares the pitch angles calculated by each of the first to fourth motion detection sensors 110-1, 110-2, 110-3, and 110-4 to determine whether multi-bending has occurred. .

Meanwhile, when the sensing values of the plurality of motion detection sensors are sequentially output, the controller 120 may determine whether bending and move has occurred based on the values. The bending and move means an operation in which the bending area moves to one side in a state in which the area is bent.

14 is a view for explaining a method of determining bending and move in a flexible device including three motion detection sensors.

When bending and move occurs, the plurality of motion detection sensors sequentially output sensing values corresponding to the bending state. The first and second motion detection sensors 110-1 and 110-2 are disposed in both edge regions, and the third motion detection sensor 110-3 is disposed in the center region.

14 illustrates a bending-and-move operation in which bending starts at the portion where the second motion detection sensor 110-2 is disposed and the bending area moves to the portion where the first motion detection sensor 110-1 is disposed. When bending and move occurs, the bending moves sequentially in (a), (b), and (c) directions.

The control unit 120 detects a change in pitch angle in the second motion detection sensor 110-2 at the point where bending starts, and a change in pitch angle is detected in the third motion detection sensor 110-3 after a predetermined time. , when the pitch angle change is detected by the first motion detection sensor 110-1 again after that, it is determined that bending is sequentially performed in (a), (b), and (c) directions.

15 is a diagram illustrating an axis change of a motion detection sensor when an upward bouncing motion occurs in a flexible device including three motion detection sensors.

According to FIG. 15 , when a bouncing motion occurs while holding both edges of the flexible device 100 , the center of the flexible device 100 rises upward in sequence as shown in (I), (II), and (III). In this case, the axial direction of the first and second motion detection sensors 110 - 1 and 110 - 2 is changed by bending, and accordingly, the gravitational acceleration component sensed in each axis is also changed. On the other hand, in the third motion detection sensor 110 - 3 , when it bounces upward, acceleration is generated in an upward direction. Accordingly, the Z-axis output value is changed.

When the output values of the first and second motion detection sensors 110-1 and 110-2 are sensed with different signs and the Z3 output value of the third motion detection sensor 110-3 decreases, the controller 120 bounces upward. It is judged that normal bending occurs once.

Meanwhile, the controller 120 determines that a swing has occurred when an operation in which the center of the flexible device is bent and then bent in the opposite direction as shown in FIG. 15 is alternately repeated.

In addition, the controller 120 may determine other bending operations such as shaking or rolling based on changes in output values of the plurality of motion detection sensors.

16 and 17 are diagrams illustrating an axis change of a motion detection sensor when shaking occurs. Shaking refers to an operation in which the user shakes the edge area of the flexible apparatus 100 while holding it with one hand.

Specifically, when the user shakes the right edge downward while holding the left edge of the flexible device 100 , the bending direction is alternately changed at each point. Accordingly, as shown in FIGS. 16 and 17 , the axial directions of the motion detection sensors 110 - 1 , 110 - 2 , and 110 - 3 change in a constant pattern. The controller 120 determines that shaking has occurred based on the output values of each of the motion detection sensors 110-1, 110-2, and 110-3.

As described above, the number and arrangement positions of the motion detection sensors 110-1, 110-2, and 110-3 may be variously determined.

18 to 21 show various examples of the configuration of a flexible device in which a plurality of motion detection sensors are disposed.

Referring to FIG. 18 , the configuration of the flexible device 100 in which four motion detection sensors 110 - 1 to 110 - 4 are respectively disposed at corners is shown.

19 illustrates a state in which a plurality of motion detection sensors 110 - 1 to 110 - 17 are disposed on the front surface of the flexible device 100 . Specifically, a plurality of motion detection sensors 110-1 to 110-14 are disposed along the edge of the flexible device 100, and the motion detection sensors 110-15, 16, and 17 may be disposed also in the central region. .

20 shows a state in which a plurality of motion detection sensors 110-1 to 110-4 are disposed at corners and one motion detection sensor 110-5 is disposed in a central region.

21 illustrates a state in which a plurality of motion detection sensors 110-1 to 110-4 are disposed at a center point of each edge area, and one motion detection sensor 110-5 is disposed at the center area.

Meanwhile, the controller 120 may also determine whether rolling has occurred based on the detection result of the motion detection sensors 110-1 to 110-n. Rolling refers to the operation of rolling the flexible device like a roll. When rolling occurs, the axial direction of the motion detection sensor disposed in the edge region rotates 360 degrees or more, and accordingly, the sensed value is repeated in the same pattern period. The controller 120 may also determine whether rolling occurs based on the change in the sensed value.

In addition, bending-and-flat or bending-and-hold may be determined based on the time the bending state is maintained. That is, the controller 120 determines that bending and hold has occurred if the bending state is fixedly maintained for a preset time after the bending is detected. The controller 120 may determine whether bending and hold occurs using a timer. On the other hand, if the controller 120 detects that the flat is straightened again immediately after the bending is detected, it is determined that bending and flat has occurred.

In the above description, a case in which the motion detection sensor consists only of an acceleration sensor has been described, but as described above, it may be implemented as a geomagnetic sensor or a gyro sensor.

When implemented as a geomagnetic sensor, the azimuth can be sensed based on an output value of a two-axis or three-axis fluxgate that senses the Earth's magnetic field. At this time, if the Z-axis is arranged in the same direction as the direction of the Earth's magnetic field vector, the reference coordinate system of the geomagnetic sensor may be defined. Thereafter, it may be determined in which direction the motion detection sensor is rotated by comparing the sensed azimuth with the reference coordinate system.

If the motion detection sensor is implemented as a 3-axis fluxgate geomagnetic sensor, the controller 120 may perform a normalization operation of mapping the output values of the X, Y, and Z-axis fluxgates within a preset normalization range. Normalization may be performed based on the same type of Equation as Equation 1 described above. That is, after calculating normalization factors such as offset values and scale values by using the maximum and minimum values among the output values of the X, Y, and Z-axis fluxgates, normalization may be performed using the normalization factors. Normalization factors such as offset values and scale values may be calculated in advance and stored in the storage unit 130 . Alternatively, when there is no offset value and scale value calculated and stored in advance, the maximum and minimum values are measured while rotating the flexible device in which the geomagnetic sensor is disposed in parallel by one, and the measured values are applied to Equation 1 to apply the offset value. and a scale value may be calculated and stored.

When the normalization is performed, the controller 120 may apply the result to the following equation to obtain the azimuth. The azimuth angle calculation formula may be defined in various ways.

As an example, the azimuth may be calculated by the following equation.

In Equation 5, λ means an azimuth. If the flexible device maintains a horizontal state, the azimuth may be the yaw angle. The X-axis output value and the Y-axis output value may mean values obtained by normalizing the output values of the X-axis and Y-axis fluxgates, respectively. Equation 5 can be used when the motion detection sensor is implemented with only a two-axis fluxgate geomagnetic sensor.

On the other hand, when the motion detection sensor includes both the 3-axis fluxgate geomagnetic sensor and the acceleration sensor, the yaw angle may be more precisely calculated using the pitch angle and the roll angle calculated by the acceleration sensor.

Specifically, the controller 120 may calculate the yaw angle using the following equation.

In Equation 6, X _norm , Y _norm , and Z _norm are values obtained by normalizing the output values of each axis of the X, Y, and Z-axis fluxgate geomagnetic sensor, θ is a pitch angle, and φ is a roll angle. Equation 6 is an expression corresponding to the case where the Z-axis value perpendicular to the horizontal plane is set to a negative number. Equation 6 may have a different sign depending on the axial arrangement of the three-axis fluxgate in the geomagnetic sensor mounted on the flexible device 100 .

On the other hand, when the motion detection sensor is implemented as a gyro sensor, when the rotational angular velocity sensed by the gyro sensor is integrated with respect to time when the point where the gyro sensor is disposed moves, the relative posture changed by rotation compared to the previous posture is calculated. An algorithm for determining the relative posture may use various known algorithms. As an example, a quaternion algorithm may be used. The controller 120 may determine the type of overall motion by comparing the relative posture detected by each motion detection sensor.

22 illustrates a system for controlling an external device using the flexible device according to various embodiments described above.

22 , the external device is implemented as a display device 200 such as a TV. The flexible device 100 may be connected to the display device by wire or wirelessly.

When various bending shapes are detected as described above, the flexible apparatus 100 transmits a control signal corresponding to the bending shape to the display apparatus 200 . Specifically, information on various control commands corresponding to the bending shape is stored in the storage unit 130 . The control command may be a digital code composed of a combination of code values such as 0 and 1. The control unit 130 may transmit a control command using an IR lamp or may transmit a control command through various wireless communication methods such as Bluetooth, Wi-Fi, Zigbee, NFC, etc., and is connected through a wired interface such as USB to transmit the control command. may be

The display apparatus 200 may perform various operations according to a control signal transmitted from the flexible apparatus 100 . For example, a turn-on operation, a turn-off operation, channel zapping, volume adjustment, application execution, cursor movement, content reproduction operation, web browsing operation, page switching operation, image quality adjustment, and other various operations may be performed.

22 illustrates a system for controlling an external device such as a TV, the flexible device may transmit a control command to a web server or various other external servers to provide a service corresponding to the bending type.

23 is a block diagram illustrating a configuration of a flexible display apparatus according to an embodiment of the present invention. The flexible display device refers to a device having a display function while having flexible characteristics. Hereinafter, for convenience of description, the flexible display device will be described by adding reference numeral 100 like the flexible device.

Referring to FIG. 23 , the flexible display apparatus 100 includes a plurality of motion detection sensors 110-1 to 110-n, a controller 120 , a storage unit 130 , a bending detection unit 140 , and a touch detection unit 150 . ), and a display unit 160 .

As described in the various embodiments described above, the controller 120 may detect a bending shape using a plurality of motion detection sensors 110-1 to 110-n, but in addition, the bending detection unit 140 and touch detection The bending shape may be detected by additionally using the part 150 or the like. The bending sensing unit 140 includes a bend sensor, and the touch sensing unit 150 includes a touch sensor. This will be described in detail in a section to be described later.

The display unit 160 displays various screens under the control of the control unit 120 . Specifically, it is possible to display a desktop screen, a lock screen, a standby screen, an application execution screen, a content playback screen, a folder screen, a web browsing screen, and the like including various icons. The control unit 120 configures a screen corresponding to the bending shape and displays it through the display unit 160 . An example of an operation corresponding to the bending shape will be described in detail in a later part.

In order to be bent together with the body of the flexible device, the display unit 160 must have a flexible characteristic.

24 is a diagram illustrating an example of the configuration of the display unit 160 .

24 , the display unit 160 includes a substrate 111 , a driver 112 , a display panel 113 , and a protective layer 114 .

The substrate 111 may be implemented as a plastic substrate (eg, a polymer film) that can be deformed by external pressure. The plastic substrate has a structure in which a barrier coating is treated on both sides of a base film. In the case of the base material, it may be implemented with various resins such as PI (Polyimide), PC (Polycarbonite), PET (Polyethyleneterephtalate), PES (Polyethersulfone), PEN (Polythylenenaphthalate), and FRP (Fiber Reinforced Plastic). In addition, the barrier coating is performed on the surfaces opposite to each other in the base material, and an organic or inorganic film may be used to maintain flexibility. Meanwhile, as the substrate 111 , in addition to a plastic substrate, a material having flexible characteristics such as thin glass or metal foil may be used.

The driving unit 112 functions to drive the display panel 113 . Specifically, the driver 112 applies a driving voltage to a plurality of pixels constituting the display panel 113 , and may be implemented as an a-si TFT, a low temperature poly silicon (LTPS) TFT, or an organic TFT (OTFT). have. The driving unit 112 may be implemented in various forms depending on the implementation form of the display panel 113 .

For example, the display panel 113 may include an organic light emitting body including a plurality of pixel cells and electrode layers covering both surfaces of the organic light emitting body. In this case, the driver 112 may include a plurality of transistors corresponding to each pixel cell of the display panel 113 . The controller 130 applies an electric signal to the gate of each transistor to emit light in the pixel cell connected to the transistor. Accordingly, various screens can be displayed.

Alternatively, the display panel 113 may be implemented as an EL, an electrophoretic display (EPD), an electrochromic display (ECD), a liquid crystal disply (LCD), an AMLCD, a plasma display panel (PDP), etc. in addition to the organic light emitting diode. However, in the case of LCD, a separate backlight is required in that it cannot emit light by itself. For LCDs without backlight, ambient light is used. Therefore, in order to use the LCD display panel 113 without a backlight, conditions such as an outdoor environment with a large amount of light must be satisfied.

The protective layer 114 serves to protect the display panel 113 . For example, a material such as ZrO, CeO2, or Th O2 may be used for the passivation layer 114 . The protective layer 114 may be manufactured in the form of a transparent film to cover the entire surface of the display panel 113 .

Alternatively, unlike shown in FIG. 24 , the display unit 160 may be implemented with electronic paper. Electronic paper is a display in which the characteristics of general ink are applied to paper, and it is different from general flat panel displays in that it uses reflected light. On the other hand, in electronic paper, pictures or characters can be changed using twist balls or electrophoresis using capsules.

On the other hand, when the display unit 160 is made of a transparent material, it may be implemented as a display device that is bendable and has a transparent property. For example, when the substrate 111 is implemented with a polymer material such as plastic having a transparent property, the driver 112 is implemented with a transparent transistor, and the display panel 113 is implemented with a transparent organic light emitting layer and a transparent electrode, transparency is achieved. can have

The transparent transistor refers to a transistor manufactured by replacing the opaque silicon of an existing thin film transistor with a transparent material such as a transparent zinc oxide or titanium oxide. In addition, a new material such as indium tin oxide (ITO) or graphene may be used for the transparent electrode. Graphene refers to a material in which carbon atoms are connected to each other to form a honeycomb-shaped planar structure and have transparent properties. In addition, the transparent organic light emitting layer may be implemented with various materials.

The display unit 160 may be formed on an overall area or a partial surface of the flexible display apparatus 100 . The above-described motion detection sensors 110-1 to 110-n, the bending detection unit 140 and the touch detection unit 150 are provided inside the display unit 160 to detect whether the display unit 160 is bent. have.

In the above-described various embodiments, the controller 120 may determine the bending shape by using the detection result of the bending detection unit 140 in addition to the motion detection sensor. The bending sensor 140 may include various types and numbers of bend sensors. Hereinafter, various examples of the shape of the bend sensor and a method for detecting the bend will be described.

< Bending detection method using bend sensor >

25 to 38 are diagrams for explaining various methods of detecting a bending shape of the flexible display apparatus using a bend sensor.

Referring to FIG. 25 , the flexible display apparatus 100 may include a bend sensor disposed on one surface, such as a front surface or a rear surface of the display unit 110 , or a bend sensor disposed on both surfaces of the display unit 110 . The bending detection unit 140 collects values sensed by the bend sensor and transmits them to the control unit 120 .

The bend sensor refers to a sensor that can be bent by itself and has a characteristic that a resistance value varies according to the degree of bending. The bend sensor may be implemented in various forms, such as an optical fiber bending sensor, a pressure sensor, a strain gauge, and the like.

The controller 120 detects the resistance value of the bend sensor using the magnitude of the voltage applied to the bend sensor or the magnitude of the current flowing through the bend sensor, and determines the bending state at the position of the bend sensor according to the magnitude of the resistance value. can detect

25 shows a state in which the bend sensor is embedded in the front surface of the display unit 110 , but this is only an example and the bend sensor may be embedded in the rear surface of the display unit 110 or may be embedded in both surfaces of the display unit 110 . . Also, the shape, number, and arrangement position of the bend sensor may be variously changed. For example, one bend sensor or a plurality of bend sensors may be coupled to the display unit 110 . Here, one bend sensor may detect one bending data, or one bend sensor may have a plurality of sensing channels for detecting a plurality of bending states.

25 illustrates an example in which a plurality of bar-shaped bend sensors are arranged in a horizontal direction and a vertical direction to form a grid.

Referring to FIG. 25 , the bending detection unit 140 includes bend sensors 21-1 to 21-5 arranged in a first direction and bend sensors 22-1 to 22-5 arranged in a second direction perpendicular to the first direction. ) is included. Each of the bend sensors may be spaced apart from each other by a predetermined interval.

Although FIG. 25 shows that five bend sensors 21-1 to 21-5 and 22-1 to 22-5 are disposed in each of the horizontal and vertical directions, this is only an example, and Of course, the number of bend sensors may be changed according to the size and the like. As described above, since the bend sensors are disposed in the horizontal and vertical directions to detect bending in the entire area of the flexible display device, only a part of the device has a flexible characteristic or it is necessary to detect bending only in part. , the bend sensor may be disposed only in the corresponding portion.

Each of the bend sensors 21-1 to 21-5 and 22-1 to 22-5 may be implemented in the form of an electrical resistance sensor using electrical resistance or a micro optical fiber sensor using a strain rate of an optical fiber. Hereinafter, for convenience of description, it is assumed that the bend sensor is implemented as an electrical resistance type sensor.

Specifically, as shown in FIG. 26 , when the central region located at the center of the flexible display apparatus 100 is bent toward the downward direction with respect to both left and right edges of the flexible display apparatus 100, the bend sensors ( 21-1 to 21-5). Accordingly, the resistance values of each of the bend sensors 21-1 to 21-5 arranged in the horizontal direction are changed. The bending detection unit 140 may detect a change in an output value output from each of the bend sensors 21-1 to 21-5 to detect that the display surface is bent in the horizontal direction based on the center of the display surface.

26 shows a state in which the central region is bent in a vertical downward direction (hereinafter, referred to as Z-direction) with respect to the display surface, but in a vertical upward direction (hereinafter referred to as Z+ direction) with respect to the display surface. Even if it is bent, it can be detected based on the change in the output value of the bend sensors 21-1 to 21-5 in the horizontal direction. 10 shows a state bent in the Z+ direction.

As shown in FIG. 27 , when the shape of the flexible display apparatus 100 is bent such that the central region located at the center of the flexible display apparatus 100 is bent upward with respect to the upper and lower edges, the bend sensors 22-1 to 22-1 to vertically arranged in tension. 22-5) is applied. The bending detection unit 140 may detect a shape deformation in the vertical direction based on output values of the bend sensors 22-1 to 22-5 disposed in the vertical direction. 27 illustrates bending in the Z+ direction, it goes without saying that bending in the Z-direction can also be detected using the bend sensors 22-1 to 22-5 arranged in the vertical direction. 28 shows bending in the Z-direction.

In the case of shape deformation in the diagonal direction, since tension is applied to both the bend sensors arranged in the horizontal and vertical directions, the shape deformation in the diagonal direction can also be detected based on the output values of the bend sensors arranged in the horizontal and vertical directions. .

When the flexible display apparatus 100 is bent, the bend sensors disposed on one or both surfaces of the flexible display apparatus are also bent together and have a resistance value corresponding to the strength of the applied tension, and output a corresponding output value.

The strength of the tension increases in proportion to the degree of bending. For example, when the central region is bent the most, the largest tension is applied to the bend sensor disposed in the central region, and thus has the largest resistance value. On the other hand, as it goes outward, the degree of bending becomes weaker. Accordingly, the bend sensor has a smaller resistance value toward the outside.

When the resistance value output from the bend sensor has a maximum value at a specific point and the resistance value outputted from the bend sensor gradually decreases in both directions, the area in which the maximum resistance value is detected is the region in which the shape is the largest. can be judged as In addition, the bending sensing unit 140 determines that the area in which the resistance value does not change is a flat area in which bending is not performed, and the area in which the resistance value changes by a certain amount or more is a bending area in which bending is performed even a little. have.

The control unit 120 determines the bending speed at which the size of the bending line, the direction of the bending line, the position of the bending line, the number of bending lines, the number of bending, and the shape are changed based on the relationship between the points at which the change in the resistance value is sensed. , the size of the bending area, the position of the bending area, the number of bending areas, and the like may be detected.

Specifically, when the distance between the points at which a change in the resistance value is sensed is within a preset distance, the controller 120 detects points outputting the resistance value as one bending region. On the other hand, if there is a point spaced apart by a distance greater than a predetermined distance between points at which a change in resistance value is sensed, it can be defined by dividing the points into different bending regions based on these points.

On the other hand, if the resistance value sensed by the bending detection unit 140 is greater than or equal to a preset size, the flexible display apparatus 100 determines that it is folding, and when it is less than the preset size, it determines that it is normal bending. That is, the folding refers to a state in which bending is made at a predetermined angle or more.

Alternatively, if the surface of the flexible display apparatus 100 is bendable enough to be in contact with each other, the controller 120 may determine whether the flexible display apparatus 100 is folded in consideration of whether a touch is made. That is, when the right edge of the flexible display apparatus 100 is bent in the Z+ direction and folded to the front side, regions spaced apart from each other on the front surface of the flexible display apparatus 100 come into contact with each other. In this case, a touch is sensed in one area of the display surface, and the degree of change in the resistance value is also greater than in the case of general bending. Accordingly, after calculating the distance from the edge boundary where the bending is made to the bending line, the controller 120 determines that folding has been made when a touch is sensed at a point spaced apart by the calculated distance in the opposite direction based on the bending line. can do.

When folding is performed, the folding area is divided into two based on the folding line. The folding line may be defined as a line connecting points outputting the largest resistance value in each folding area. The folding line may be used as the same meaning as the bending line.

When folding is sensed, the controller 120 may perform an operation different from an operation performed during normal bending. For example, an operation such as displaying different screens for each folding area may be performed.

Meanwhile, as described above, the flexible display apparatus 100 may be rolled like paper. As described above, the control unit 120 may determine whether rolling has been made using the result detected by the motion detection sensors 110-1 to 110-n, but hereinafter, the determination of rolling using the bend sensor is performed. Explain.

28 to 30 are diagrams for explaining a method in which the flexible display device detects rolling.

Rolling may also be determined based on the bending angle. For example, a state in which bending of a predetermined bending angle or more is sensed over a predetermined area may be defined as rolling. On the other hand, a state in which bending of less than a predetermined bending angle is sensed in a relatively small area compared to rolling may be defined as folding. The above-described general bending, folding, rolling, etc. may be determined based on a radius of curvature in addition to the bending angle.

Also, regardless of the radius of curvature, a state in which the cross-section in which the flexible display apparatus 100 is rolled has a shape substantially close to a circle or an ellipse may be defined as rolling.

28 is a cross-sectional view illustrating the flexible display apparatus 100 when rolled. As described above, when the flexible display apparatus 100 is rolled, a tension is applied to the bend sensors disposed on one or both surfaces of the flexible display apparatus.

In this case, since the strength of the tension applied to the bend sensor may be considered to be close to each other within a certain range, resistance values output from the bend sensor are also approximated to each other within a certain range.

In order for rolling to occur, bending must be performed with a certain curvature or more. In addition, when rolling is performed, the bending area is formed larger than in the case of general bending or folding. Accordingly, if it is detected that bending of a predetermined bending angle or more is continuously performed in an area of a predetermined size or more, the controller 120 may determine the rolling state. Also, in the rolling state, the front surface and the rear surface of the flexible display device come into contact with each other. For example, as shown in FIG. 28 , when one edge of the flexible display apparatus 100 is bent in the Z+ direction and rolled into the display surface, the display surface, that is, the front surface and the rear surface on which the bend sensor 50-1 is disposed come into contact with each other.

Accordingly, in another example as described above, the controller 120 may determine whether the flexible display device is in a rolling state according to whether the front and rear surfaces of the flexible display device are in contact with each other. On the other hand, if the touch sensor unit 150 is further included as described above, the control unit 120 has the resistance values output from the bend sensor close to each other within a certain range, and the touch sensors disposed on the front and back surfaces of the flexible display device. When a touch is detected in each of the fields, it may be determined that the flexible display device is rolled. Alternatively, the controller 120 may use a magnetic and magnetic field sensor, an optical sensor, or a proximity sensor instead of a touch sensor to determine whether the flexible display device is bent so that some regions of the flexible display device come into contact or proximity.

29 and 30 are diagrams for explaining a method of defining a rolling area according to an embodiment of the present invention. The rolling area refers to the entire area in which the flexible display device is bent and in a rolling state. The rolling region may also be defined as one or more regions including all points of the bend sensor that output a resistance value different from that in the original state as in the case of general bending and folding. Since the method of defining and dividing the rolling area is the same as in the bending and folding area, a redundant description will be omitted.

As shown in FIG. 29 , when the flexible display apparatus 100 is entirely rolled, the entire area 51 of the flexible display apparatus may be defined as a rolling area, and as shown in FIG. 30 , the flexible display apparatus 100 is partially rolled and a circle When points outputting a different resistance value from the state are spaced apart by a predetermined distance, the partial regions 52 and 53 of the flexible display device may be defined as different rolling regions.

As described above, the flexible display apparatus 100 may be bent in various shapes, and the control unit 120 may detect each bending state based on the detection result of the bending detection unit 140 . Also, the control unit 120 may detect what shape, where, what direction, and to what extent bending is performed based on the detection result of the bending detection unit 140 .

31 and 32 are diagrams for explaining a method of determining a degree of bending. 31 and 32 , the flexible display apparatus 100 determines the degree to which the flexible display apparatus is bent by using a change in the size of a resistance value output at regular intervals from the bend sensor.

Specifically, the controller 120 calculates a difference between a resistance value at a point at which the bend sensor outputs the largest resistance value and a resistance value output at a point spaced apart from the point by a predetermined distance.

In addition, the controller 120 may determine the degree of bending using the calculated difference in resistance values. Specifically, the flexible display apparatus 100 may classify the bending degree into a plurality of levels, match and store resistance values having a predetermined range for each level.

Accordingly, the flexible display apparatus may determine the bending degree of the flexible display apparatus according to a level belonging to a plurality of levels divided according to the bending degree of the calculated resistance value difference.

For example, as shown in FIGS. 31 and 32 , the resistance value output at a point a5 outputting the largest resistance value from the bend sensor 61 provided on the rear surface of the flexible display apparatus 100 and spaced apart by a predetermined distance The degree of bending may be determined based on the difference in the resistance values output at the point a4.

Specifically, it is possible to check a level to which a difference in resistance values calculated in the embodiments shown in FIGS. 32 and 32 belongs, among a plurality of pre-stored levels, and determine a bending degree corresponding to the checked level. Here, the bending degree may be expressed as a bending angle or a bending strength.

On the other hand, since the bending degree of the embodiment shown in FIG. 32 is greater than that of the embodiment shown in FIG. 31, in the embodiment shown in FIG. The difference becomes larger than the difference between the resistance value output from the bending sensor point a5 and the resistance value output from the point a4 in the embodiment shown in FIG. 31 . Accordingly, when bending is performed as shown in FIG. 32 , the controller 120 may determine that the degree of bending is greater.

The controller 120 may perform an appropriate operation according to the degree of bending. For example, when performing a channel zapping operation, if the bending degree is large, the channel zapping speed may be increased or the channel zapping range may be increased. On the other hand, if the degree of bending is low, channel zapping may be performed more slowly and in units of a smaller number of channels. Even during an operation such as volume control or content switching, an operation may be performed differently depending on the degree of bending.

Meanwhile, as described above, the bending direction of the flexible display apparatus 100 may be different such as the Z+ direction or the Z− direction.

The bending direction may also be sensed in various ways. As an example, by overlapping two bend sensors, the bending direction may be determined according to a difference in the change in the resistance value of each bend sensor. A method of detecting a bending direction using an overlapping bend sensor will be described with reference to FIGS. 33 to 35 .

For convenience of description, in FIGS. 33 to 35 , a general bending case will be described as an example. However, it goes without saying that folding and rolling may be applied similarly to bending.

Referring to FIG. 33 , two bend sensors 71 and 72 may be provided to overlap each other on one side of the display unit 160 . In this case, when bending is performed in one direction, resistance values of the upper bend sensor 71 and the lower bend sensor 72 are detected differently at the bending point. Accordingly, when the resistance values of the two bend sensors 71 and 72 are compared at the same point, the bending direction can be known.

Specifically, as shown in FIG. 34 , when the flexible display apparatus 100 is bent in the Z+ direction, a greater strength of tension is applied to the lower bend sensor 72 than to the upper bend sensor 71 at point A corresponding to the bending line. will lose

Conversely, when the flexible display apparatus 100 is bent in the back direction as shown in FIG. 35 , a higher strength tension is applied from the upper bend sensor 71 than the lower bend sensor 72 .

Accordingly, the controller 120 may detect the bending direction by comparing the resistance values corresponding to the point A in the two bend sensors 71 and 72 .

33 to 35 illustrate a state in which two bend sensors are disposed overlapping each other on one side of the display unit 160 , the bend sensors may be disposed on both sides of the display unit 160 .

36 shows a state in which the two bend sensors 71 and 72 are disposed on both sides of the display unit 160 . Accordingly, when the flexible display apparatus 100 is bent in the first direction perpendicular to the screen, that is, in the Z+ direction, the bend sensor disposed on the first surface among both surfaces of the display unit 160 receives a compressive force, whereas The bend sensor disposed on the second surface is subjected to tension. On the other hand, when bending in the second direction opposite to the first direction, that is, the Z-direction, the bend sensor disposed on the second surface receives a compressive force, while the bend sensor disposed on the first surface receives a tension. In this way, the values sensed by the two bend sensors are differently detected according to the bending directions, and the controller 120 may distinguish the bending directions according to the detection characteristics of the values.

On the other hand, although it has been described that the bending direction is sensed using two bend sensors in FIGS. 33 to 36 , the bending direction may be distinguished only by the strain gauge disposed on one surface of the display unit 160 . That is, since a compressive force or tensile force is applied to the strain gauge disposed on one surface according to the bending direction, the bending direction can be known by checking the characteristics of the output value.

On the other hand, the bend sensor 71 may be implemented in the form of a closed curve forming a circle, a square, or other polygons, and may be disposed at the edge of the display unit 160 . The controller 120 may determine a point on the closed curve at which a change in the output value is sensed as the bending region. In addition, the bend sensor may be coupled to the display unit 110 in an open curve shape such as an S-shape, a Z-shape, or other zigzag. Alternatively, the two bend sensors may be arranged to cross each other.

Meanwhile, in the above-described various embodiments, a case in which line-type bend sensors are used is illustrated, but bending may be detected by using a plurality of fragmentary strain gauges.

37 and 38 are diagrams illustrating an embodiment of detecting bending using a plurality of strain gauges. The strain gauge uses a metal or semiconductor whose resistance is greatly changed according to the magnitude of the applied force, and detects the deformation of the surface of the object to be measured according to the change in the resistance value. In general, a material such as a metal has a characteristic that the resistance value increases when the length increases according to an external force, and the resistance value decreases when the length decreases. Accordingly, it is possible to determine whether bending is performed by detecting a change in the resistance value.

Referring to FIG. 37 , a plurality of strain gauges are disposed in the edge region of the display unit 160 . The number of strain gauges may vary depending on the size or shape of the display unit 160 , a preset bending detection resolution, and the like.

In a state in which the strain gauges are arranged as shown in FIG. 37 , the user may bend any point in any direction. Specifically, when one corner region is bent as shown in FIG. 38 , a force acts on the strain gauge 80-x overlapping the bending line among the strain gauges 80-1 to 80-n arranged in the horizontal direction. Accordingly, the output value of the corresponding strain gauge 80-x is greater than the output value of the other strain gauges. In addition, a force acts on the strain gauge 80-y overlapping the bending line among the strain gauges 80-n, 80-n+1, and ˜80-m arranged in the vertical direction, so that the output value is changed. The control unit 120 may determine that the line connecting the two strain gauges 80-x and 80-y whose output value is changed is a bending line.

< Method of using motion detection sensor and bend sensor and its calibration >

Meanwhile, as described above, the flexible display apparatus 100 may determine the bending shape by using the motion detection sensor and the bend sensor together.

39 shows the configuration of a flexible display device according to an embodiment including both a motion detection sensor and a bend sensor. Referring to FIG. 39 , a plurality of bend sensors are disposed in an edge region of the flexible display apparatus 100 . The distance between each bend sensor may be maintained constant, or it may be arranged more densely in a part where bending occurs frequently, and arranged at a wide interval in a part where bending occurs less frequently.

Motion detection sensors 110 - 1 and 110 - 2 may also be disposed together with the bend sensor. 39 illustrates a state in which the two motion detection sensors 110-1 and 110-2 are disposed on the left and right edges of the flexible device 100, the number and arrangement positions of the motion detection sensors may be variously changed. have.

The control unit 120 determines the bending shape by comprehensively using the bend sensor and the motion detection sensor. For example, as described in FIG. 38 , when a bending line is detected by two bend sensors, when a motion is detected by a motion detection sensor disposed in one of two areas separated by the bending lines, the corresponding motion is detected based on the direction of the motion. Determine how the part is bent.

That is, the controller 120 may determine a bending line or a bending area using a bend sensor, and may determine a bending direction or a bending degree using a motion detection sensor. Accordingly, the bending shape may be finally determined by combining the identified results.

Alternatively, the control unit 120 determines the bending form based on the sensing value of the bend sensor, separately determines the bending form using the motion detection sensor, compares the two determination results and determines that the bending has occurred if they match You may. Alternatively, if the two determination results do not match, the operation of determining the bending shape may be performed again. In this way, when the bending shape is determined by using different types of sensors comprehensively, the accuracy may be further improved.

On the other hand, when the bend sensor is used, the error characteristic of the bend sensor may be changed by using the flexible device for a long time or by the influence of the use environment (temperature, humidity, etc.). For example, if the bend sensor is used a lot, the bend sensor is increased, so that the resistance value at the time of bending may be different from the initial state.

The controller 120 may perform a calibration operation to compensate for the error characteristic of the bend sensor. When a preset calibration type is detected, the control unit 120 calculates a compensation value based on the sensing value output from the bend sensor while the calibration type is detected, and compensates the sensing value of the bend sensor using the calculated compensation value. Perform calibration work.

The calibration shape refers to a bending shape determined to perform a calibration operation in the flexible apparatus 100 . For example, the calibration form may be set in such a way that both ends of the flexible device 100 are bent to be connected to each other or rolled so that bending is detected by all of the bend sensors disposed on the front surface of the flexible device 100 .

The controller 120 determines whether a calibration type is detected using the motion detection sensor and the bend sensor. Alternatively, even if an error occurs in the output value of the bend sensor, since the motion detection sensor can be used normally, the controller 120 may determine whether the calibration type is detected based only on the output value of the motion detection sensor.

Information on the calibration type is stored in the storage unit 130 . The manufacturer of the flexible device 100 may measure the output values of the bend sensors in a state in which the flexible device 100 is calibrated before the product is released, and may be stored in the storage unit 130 . That is, in a state in which the calibration form is taken, the sensing value output from each bend sensor is determined as an ideal sensing value and stored in the storage unit 130 .

40 and 41 are graphs for explaining a calibration operation.

Referring to FIG. 40 , the control unit 120 compares an output value Sout output from the bend sensor in a state in which a calibration form is taken and an ideal sensing value Sideal stored in the storage unit 130 . In this case, as shown in FIG. 40 , white noise is included in the actual output value Sout. The controller 120 removes white noise by averaging the actual output value Sout in a preset time unit.

41 shows a bias value Svias of an actual output value from which white noise is removed. The controller 120 compares the bias value Svias with the ideal sensing value Sideal, determines the difference as a compensation value, and stores the determined compensation value in the storage unit 130 . Accordingly, the calibration operation is finished.

The control unit 120 performs compensation by subtracting a compensation value with respect to an output value output from the bend sensor after the calibration type is released. 41 shows a state in which the bias value is detected to be larger than the ideal sensing value, the bias value may be detected to be smaller than the ideal sensing value depending on the arrangement position of the bend sensor and the characteristics of the calibration type. In this case, compensation may be performed by adding a compensation value to the actual output value.

In the above-described embodiment, it has been described that the control unit 120 automatically performs the calibration operation when the calibration type is detected, but the calibration operation may be started by a separate command. For example, the controller 120 may perform a calibration operation even when the user presses a button separately provided on the body of the flexible apparatus 100 or presses a calibration menu displayed on the screen of the flexible apparatus 100 . In this case, when it is sensed that a button or a calibration menu is selected, the controller 120 may output a guide message guiding to take a calibration form through a screen or a speaker. Accordingly, when the user takes the calibration form within a preset time, the calibration can be performed using the output value of the bend sensor sensed in that state.

Meanwhile, although it has been described in FIGS. 40 and 41 that the compensation value is calculated by comparing with the previously stored ideal output value, the reference value itself may be changed through a calibration operation. For example, when a calibration operation is started, the controller 120 calculates a bias value by obtaining an average of output values output from the bend sensor in a state in which the calibration form is maintained. Then, the calculated bias value is set as a reference value and stored in the storage unit 130 . When the calibration form is released, the control unit 120 compares the output value of the bend sensor thereafter with the reference value stored in the storage unit 130 to determine the bending state. According to this embodiment, the user may perform a calibration operation from time to time to update the reference value, thereby increasing the bending shape determination accuracy.

Meanwhile, as described above, the flexible device 100 may be implemented as a general device without a display function or as a flexible display device with a display function. Among the flexible display devices, it may be implemented as a portable device such as a mobile phone, a tablet PC, a PDA, a notebook PC, or an e-book. In particular, when implemented as a portable device such as a smart phone that has recently become popular, various components may be provided.

42 is a block diagram illustrating an example of a flexible device including various components.

According to FIG. 42 , the flexible device includes a plurality of motion detection sensors 110-1 to 110-n, a control unit 120, a storage unit 130, a bending detection unit 140, a touch sensing unit 150, and a display unit ( 160), GPS receiver 165, DMB receiver 166, graphic processor 170, power supply 180, audio processor 181, video processor 182, speaker 183, button 184, USB port 185 , a camera 186 , a microphone 187 , and a communication unit 190 .

Since the configuration and operation of the motion detection sensors 110-1 to 110-n, the bending detection unit 140, and the display unit 160 have been described in detail in the above section, a redundant description will be omitted.

The touch sensing unit 150 may include a touch sensor implemented in a capacitive or pressure-sensitive manner. The capacitive type is a method of calculating touch coordinates by sensing micro-electricity excited by the user's body when a part of the user's body is touched on the surface of the display unit 160 using a dielectric coated on the surface of the display unit 160 . The decompression type includes two electrode plates, and when the user touches the screen, the touch coordinates are calculated by sensing that the upper and lower plates of the touched point come into contact and current flows. As described above, the touch sensor may be implemented in various forms. The control unit 120 may determine the type of touch manipulation based on the sensing signal detected by the touch sensing unit 150 . The touch operation may include various operations such as simple touch, tap, touch and hold, move, flick, drag and drop, pinch in, and pinch out.

Although not shown in FIG. 42 , the flexible device may include a pressure sensor, a proximity sensor, a grip sensor, etc. in addition to the bending sensing unit 140 and the touch sensing unit 150 .

The pressure sensor senses the amount of pressure applied to the flexible device 100 when the user performs a touch or bending operation, and provides it to the controller 120 . The pressure sensor may include a piezo film that is built into the display 160 and outputs an electrical signal corresponding to the magnitude of the pressure. When the touch sensor in the touch sensing unit 150 is implemented as a pressure-sensitive touch sensor, the pressure-sensitive touch sensor may also serve as a pressure sensor. The proximity sensor is a sensor for detecting a motion approaching the display surface without direct contact. Proximity sensor forms a high-frequency magnetic field and detects current induced by magnetic field characteristics that change when an object is approached. It can be implemented with various types of sensors such as The grip sensor is a sensor that is disposed on the edge, bezel, or handle of the flexible device separately from the pressure sensor to detect the user's grip. The grip sensor may be implemented as a pressure sensor or a touch sensor.

The control unit 120 is a motion detection sensor (110-1 ~ 110-n), a bending detection unit 140, a touch detection unit 150, a pressure sensor, proximity sensor, grip sensor, etc. detected by various types of sensing units. By analyzing various sensing signals, the bending shape of the user is identified, and an operation corresponding to the bending shape is performed. In addition to bending, the controller 120 may perform a control operation according to various input methods such as a touch operation, a motion input, a voice input, a button input, and the like.

In addition, the controller 120 may execute an application stored in the storage unit 130 to configure and display the execution screen, and may reproduce various contents stored in the storage unit 130 . Also, the control unit 120 may communicate with external devices through the communication unit 190 .

The communication unit 190 is configured to communicate with various types of external devices according to various types of communication methods. The communication unit 190 includes various communication chips such as a Wi-Fi chip 191 , a Bluetooth chip 192 , an NFC chip 193 , and a wireless communication chip 194 .

The Wi-Fi chip 191 , the Bluetooth chip 192 , and the NFC chip 193 perform communication using a WiFi method, a Bluetooth method, and an NFC method, respectively. Among them, the NFC chip 193 refers to a chip operating in an NFC (Near Field Communication) method using a 13.56 MHz band among various RF-ID frequency bands such as 135 kHz, 13.56 MHz, 433 MHz, 860 to 960 MHz, 2.45 GHz, etc. do. In the case of using the Wi-Fi chip 191 or the Bluetooth chip 192, various connection information such as an SSID and a session key are first transmitted and received, and then various types of information can be transmitted and received after communication connection using the same. The wireless communication chip 194 refers to a chip that performs communication according to various communication standards such as IEEE, ZigBee, 3rd Generation (3G), 3rd Generation Partnership Project (3GPP), and Long Term Evoloution (LTE).

The GPS receiver 165 is a component for receiving a GPS signal from a Global Positioning System (GPS) satellite and calculating the current position of the flexible device 100 .

The DMB receiver 166 is a component that receives and processes a Digital Multimedia Broadcasting (DMB) signal.

The graphic processing unit 170 generates a screen including various objects such as icons, images, and texts by using an operation unit (not shown) and a rendering unit (not shown). The calculation unit calculates property values such as coordinate values, shape, size, color, etc. of each object to be displayed according to the layout of the screen. The rendering unit generates screens of various layouts including objects based on the attribute values calculated by the calculation unit. The screen generated by the rendering unit is displayed in the display area of the display unit 160 .

The power supply unit 180 is a component that supplies power to each component of the flexible device 100 . The power supply unit 180 may be implemented in a form including a positive electrode current collector, a positive electrode electrode, an electrolyte unit, a negative electrode, a negative electrode current collector, and a covering part surrounding the same. The power supply unit 180 is implemented as a rechargeable battery capable of charging and discharging. The power supply unit 180 may be implemented in a flexible form to be bent together with the flexible device 100 . In this case, the current collector, the electrode, the electrolyte, the coating, and the like may be made of a material having flexible properties. The specific shape and material of the power supply unit 180 will be separately described in a later section.

The audio processing unit 181 is a component that processes audio data. The audio processing unit 181 may perform various processes such as decoding, amplification, and noise filtering on audio data.

The video processing unit 182 is a component that processes video data. The video processing unit 182 may perform various image processing, such as decoding, scaling, noise filtering, frame rate conversion, and resolution conversion, on video data.

The audio processing unit 181 and the video processing unit 182 are used to process and reproduce multimedia contents or DMB broadcasting signals.

The display unit 160 displays the video frame processed by the video processing unit 182 , the screen generated by the graphic processing unit 170 , and the like.

The speaker 183 is a component that outputs various types of audio data processed by the audio processing unit 181 as well as various notification sounds or voice messages.

The button 184 may be various types of buttons such as a mechanical button, a touch pad, a wheel, etc. formed in an arbitrary area such as the front, side, or rear of the body of the flexible device 100 .

The USB port 185 may communicate with various external devices through a USB cable.

The camera 186 is configured to capture a still image or a moving image according to a user's control. The camera 186 may be implemented in plurality, such as a front camera and a rear camera.

The microphone 187 is configured to receive a user's voice or other sound and convert it into audio data. The controller 120 may use the user's voice input through the microphone 187 in a call process, or convert it into audio data and store it in the storage 130 .

When the camera 186 and the microphone 187 are provided, the controller 120 may perform a control operation according to a user voice input through the microphone 187 or a user motion recognized by the camera 186 . That is, the flexible apparatus 100 may operate in a motion control mode or a voice control mode in addition to being controlled by shape deformation or touch. When operating in the motion control mode, the controller 120 activates the camera 186 to capture an image of the user, tracks the user's motion change, and performs a control operation corresponding thereto. When operating in the voice control mode, the controller 120 may also operate in a voice recognition mode in which the user's voice input through the microphone 187 is analyzed and a control operation is performed according to the analyzed user's voice.

In addition, various external input ports for connecting to various external terminals such as a headset, a mouse, and a LAN may be further included.

The above-described operation of the control unit 120 may be performed by a program stored in the storage unit 130 . In the storage unit 130, O/S (Operating System) software for driving the flexible device 100, various applications, various data input or set during application execution, content, bending form, motion detection sensor characteristic information, reference information Various data may be stored, such as.

The controller 120 generally controls the operation of the flexible device 100 using various programs stored in the storage 130 .

The controller 120 includes a RAM 121 , a ROM 122 , a timer 123 , a main CPU 124 , first to n interfaces 125 - 1 to 125 -n , and a bus 126 .

The RAM 121 , the ROM 122 , the timer 123 , the main CPU 124 , the first to n-th interfaces 125-1 to 125-n, and the like may be connected to each other through the bus 126 .

The first to n-th interfaces 125-1 to 125-n are connected to the various components described above. One of the interfaces may be a network interface connected to an external device through a network.

The main CPU 124 accesses the storage unit 130 and performs booting using the O/S stored in the storage unit 130 . Then, various operations are performed using various programs, contents, data, etc. stored in the storage unit 130 .

The ROM 122 stores an instruction set for system booting and the like. When a turn-on command is input and power is supplied, the main CPU 124 copies the O/S stored in the storage unit 130 to the RAM 121 according to the command stored in the ROM 122, and executes the O/S. to boot the system. When booting is completed, the main CPU 124 copies various application programs stored in the storage unit 130 to the RAM 121 , and executes the application programs copied to the RAM 121 to perform various operations.

When the detection signal of each sensor is received, the main CPU 124 stores various information related to the operation at that point in time, such as an application or function being performed before, or a screen layout displayed at that point in time, to the storage unit 130 . Save. Then, it is determined what kind of bending has occurred based on the detection signal.

That is, as described above, the plurality of motion detection sensors 110-1 to 110-n output a sensing value corresponding to the state when the portion in which the sensor is disposed is inclined or rotated due to bending. In this case, the sign and magnitude relationship of the sensing values of the motion detection sensors 110-1 to 110-n disposed at different positions is different for each bending type. Accordingly, if the relationship between the sensed values is arranged in a database in advance and stored in the storage unit 130 , the main CPU 124 executes a program for determining the type of bending. The main CPU 124 may determine the type of bending corresponding to the sensed value based on the database stored in the storage 130 according to the execution of the program.

Meanwhile, the main CPU 124 may count the time by controlling the timer 123 . Accordingly, when a preset time elapses in a state in which the detection signal is not changed, the main CPU 124 determines that bending and hold has been performed. On the other hand, the main CPU 124 determines that if the detection signal is not maintained and continuously changed and then returns to the original value, bending and flattening again after bending has occurred. In this way, when the timer 123 is used, it is possible to distinguish bending and flat and bending and hold.

When the determination is completed, the main CPU 124 checks information on a function matching the bending form from the storage unit 130, loads an application for performing the function into the RAM 121, and then executes it. can

42 is an example of a case in which the flexible device is a device having various functions such as a communication function, a broadcast reception function, a video playback function, and a display function, and various components are comprehensively shown. Accordingly, according to an embodiment, some of the components shown in FIG. 42 may be omitted or changed, and other components may be further added.

Meanwhile, as described above, the control unit 120 may execute a program stored in the storage unit 130 to perform various operations.

43 is a diagram for explaining the configuration of software stored in the storage unit 130 . According to FIG. 43 , the storage unit 130 includes a base module 131 , a sensing module 132 , a communication module 133 , a presentation module 134 , a web browser module 135 , and a service module 136 . software may be stored.

The base module 131 refers to a basic module that processes signals transmitted from each hardware included in the flexible device 100 and transmits them to a higher layer module.

The base module 131 includes a storage module 131-1, a location-based module 131-2, a security module 131-3, a network module 131-4, and the like.

The storage module 131-1 is a program module that manages a database (DB) or a registry. The main CPU 124 may access a database in the storage unit 130 using the storage module 131-1 to read various data. The location-based module 131-2 is a program module that supports location-based services by interworking with various hardware such as a GPS chip. The security module 131-3 is a program module that supports hardware certification, request permission, secure storage, and the like, and the network module 131-4 is a network module for supporting network connection. Module includes DNET module, UPnP module, etc.

The sensing module 132 is a module for collecting information from various sensors, and analyzing and managing the collected information. Specifically, it is a program module that performs an operation of detecting manipulation properties such as a coordinate value of a touch point, a touch moving direction, a moving speed, and a moving distance. The main CPU 124 may execute the sensing module 132 to calculate a pitch angle, a roll angle, a yaw angle, etc. using the sensing values sensed by the plurality of motion detection sensors. In this case, the above-described equations can be used. The main CPU 124 may determine the bending shape by comparing the calculated characteristic relation between the pitch angle, the roll angle, and the yaw angle with a pre-stored database. Alternatively, when the database is organized based on the sensed values, the main CPU 124 does not calculate a pitch angle, a roll angle, a yaw angle, etc., but retains bending shape information corresponding to the sensed values detected by each motion detection sensor as it is. By detecting from the database, it is also possible to determine the bending shape. In addition, in some cases, the sensing module 132 may include a face recognition module, a voice recognition module, a motion recognition module, an NFC recognition module, and the like.

The communication module 133 is a module for performing communication with the outside. The communication module 133 includes a messaging module 133-1 such as a messenger program, a short message service (SMS) & multimedia message service (MMS) program, an email program, a call information aggregator program module, a VoIP module, and the like. It may include a phone module 133-2 including a.

The presentation module 134 is a module for configuring a display screen. The presentation module 134 includes a multimedia module 134-1 for reproducing and outputting multimedia content, and a UI rendering module 134-2 for processing UI and graphics. The multimedia module 134 - 1 may include a player module, a camcorder module, a sound processing module, and the like. Accordingly, various multimedia contents are reproduced to generate and reproduce screens and sounds. The UI rendering module 134-2 includes an image compositor module that combines images, a coordinate combination module that combines coordinates on a screen to display an image, an X11 module that receives various events from hardware, 2D or 3D It may include a 2D/3D UI toolkit that provides a tool for composing a UI of a form, and the like.

The web browser module 135 refers to a module that accesses a web server by performing web browsing. The web browser module 135 may include various modules such as a web view module constituting a web page, a download agent module performing download, a bookmark module, a webkit module, and the like.

The service module 136 is a module including various applications for providing services corresponding to the bending type when the bending type is determined. Specifically, the service module 136 may include various program modules such as a navigation program, a content reproduction program, a game program, an e-book program, a calendar program, an alarm management program, and other widgets. Each of these program modules may be used by matching various shape deformation states such as bending and flat or bending and hold.

Although various program modules are illustrated in FIG. 43 , it goes without saying that some of the illustrated program modules may be omitted, modified, or added according to the type and characteristics of the flexible apparatus 100 . For example, when the above-described flexible device 100 is implemented as a remote control for controlling an external device with only a flexible characteristic without a display function, the presentation module 134 , the web browser module 135 , and the service module 136 . ) may be excluded. In this case, only a module for determining a bending shape and a registry degree indicating information about a control command matching the bending shape may be stored and used in the storage unit 130 .

On the other hand, when a plurality of motion detection sensors are provided, a lot of power may be consumed in each motion detection sensor. Accordingly, the controller 120 may activate the plurality of motion detection sensors only when necessary.

Referring to FIG. 44 , the flexible device 100 includes a bezel 3100 formed on an edge of the display unit 160 .

The bezel 3100 is also implemented with a flexible material and can be bent together with the display unit 160 . Buttons 3110 and 3120 are provided on the bezel 3100 . When a user touch on at least one of the buttons 3110 and 3120 is sensed, the controller 120 may activate each motion detection sensor. In this case, in addition to the motion detection sensor, other sensors such as a bend sensor and a touch sensor may also be activated. Here, activation means an operation of supplying power to the motion detection sensor. The controller 120 may activate each sensor for a preset period of time from the time the user touch is made. When bending is detected by each of the sensors including the motion detection sensor, the controller 120 extends the activation time of the sensors.

Referring to FIG. 44 , the user may bend while selecting the buttons 3110 and 3120 described above. When bending is performed in a state where both buttons 3110 and 3120 are touched, the controller 120 recognizes that the user has bent by holding the flexible device 100 with both hands, and in a state where only one button is touched When bending is performed, the user grasps the flexible display apparatus 100 with one hand and recognizes the bending. The controller 120 ignores the bending operation detected in a state in which at least one of the buttons 3110 and 3120 is not touched.

Although two buttons 3110 and 3120 are illustrated in FIG. 44 , the number of buttons may vary according to an embodiment, and the arrangement position of the buttons may also be variously changed. In addition, the buttons 3110 and 3120 may be implemented as touch buttons or other various types in addition to mechanical buttons.

Although the actual buttons 3110 and 3120 provided on the bezel 3100 are illustrated in FIG. 44 , the buttons may be implemented in the form of a dome key, a part of a touch screen panel, or a part of a touch pad. In addition, when a user's grip state for a specific location is detected using a grip sensor or a proximity sensor provided at a specific location of the flexible device 100, it may be determined that the button is selected.

Also, although the case in which the bezel 3100 is present is illustrated in FIG. 44 , the bezel 3100 may be omitted depending on the type of the flexible device 100 . In this case, a button may be provided on the side of the flexible device 100 .

Alternatively, a virtual button may be displayed on the screen displayed on the display unit 160 . 45 is a diagram illustrating the configuration of the flexible device 100 without the bezel 3100 .

45 , the entire front surface of the flexible device 100 may be implemented as the display unit 160 . In this case, since the bezel 3100 is removed, there is no space for the buttons 3110 and 3120 to be provided. Accordingly, in this case, the button menus 3130 and 3140 may be displayed on a predetermined area on the screen 4500 . When at least one of the button menus 3130 and 3140 is selected, the controller 120 may activate each sensor including the motion detection sensor.

The button menus 3130 and 3140 shown in FIG. 45 may be displayed in various shapes such as circles, squares, and stars, or may be represented by letters or numbers. Alternatively, the user may recognize the position of the button by brightening the luminance, changing the surface texture, or giving a local vibration without a special mark at the position of the button.

According to another embodiment, without displaying the button menus 3130 and 3140 , for a period of time within a certain period of time from when an arbitrary area on the screen 4500 is touched, or an arbitrary area on the screen 4500 is It is also possible to activate each sensor only while being touched.

As described above, the flexible device may include various hardware and software, thereby providing various services. These services may be matched for each bending type and controlled by the user. An operation corresponding to the bending shape may vary depending on an application executed in the flexible device when bending is performed.

Hereinafter, examples of various control operations that may be performed according to the bending shape will be described in detail.

< Example of control operation according to bending type >

46 shows an example of a control operation when bending for bending one edge is performed.

Referring to FIG. 46 , a user bending operation of the form shown in FIG. 46 is performed while the flexible device 100 is executing the DMB application. In this case, the broadcast screen may be displayed only in the flat area F, not the bending area B.

As shown in FIG. 46 , in a state where the broadcast screen 4600 received through the 11th broadcast channel is displayed, a user bending operation of bending and unfolding one edge region in the Z+ direction as shown in FIG. 46 is performed. When performed, the flexible device 100 may perform a channel zapping operation. Specifically, it is switched to the ninth broadcasting channel 4610, which is the previous broadcasting channel of the eleventh broadcasting channel. On the other hand, if bending is performed in the Z-direction in the same manner or bending is performed in the left edge region, the channel is switched to broadcast channel 13, which is the next broadcast channel of broadcast channel 11. FIG.

When the bending angle is formed to be larger in FIG. 46 , the channel zapping speed may be increased or the channel zapping range may be increased. That is, the zapping may be performed in units of 1 channel and then zapping may be performed in units of 5 or 10 channels. 46 illustrates a case in which a channel zapping operation is performed by bending, but this is only an example, and various other operations may be performed by matching the bending type.

47 illustrates an example of an operation when bending and touch are performed together. 47 illustrates a state in which the flexible apparatus 100 is executing an e-book application.

Referring to FIG. 47 , when the user holds the right boundary of the display unit 160 and bends it in the Z+ direction, the next page (page 4) of the current page (page 3) is displayed on the display unit 160 .

If the user continues to maintain the bending state in the Z+ direction, the page displayed on the display unit 160 gradually displays the next page (page 5).

In this process, when the user touches (T) the screen of the display unit 160, a bookmark may be set on the corresponding page.

Meanwhile, when the user releases the bending state while the fifth page is displayed and the entire area of the display unit 160 becomes flat, the fifth page is displayed on the display unit 160 in a fixed manner.

48 is a diagram for explaining a swing.

Referring to FIG. 48 , when the user shakes the flexible device 100 up and down while holding the flexible device 100 with both hands, bending in the Z+ direction and the Z− direction is alternately performed. Since the method of determining the swing has been described above, a redundant description thereof will be omitted.

When the swing is made, the flexible apparatus 100 performs an operation corresponding to the swing operation. For example, when a swing is made while various objects such as icons, images, texts, and photos are displayed on the display unit 160 , the flexible device 100 may perform an operation of deleting the objects one by one.

49 is a view for explaining an example of an operation performed when a user performs bending while holding the flexible apparatus 100 with both hands.

According to FIG. 49 , when bending is performed in the Z-direction while a plurality of objects OB1 to OB6 are displayed on the display unit 160 , the objects OB1 to OB6 displayed on the screen are moved in the bending line direction. moved and displayed. In addition, the objects (OB7, OB8, OB9) not displayed in the flat state are newly displayed and moved in the direction of the bending line.

On the other hand, when bending is performed in the Z+ direction, objects are moved toward both edges based on the bending line. Accordingly, the objects moved to both edges disappear from the screen.

If bending in the Z- and Z+ directions is alternately repeated at a high speed in FIG. 49 , the flexible apparatus 100 determines that a swing operation has been performed. As a result, the objects displayed on the screen disappear one by one as if they were thrown out of the screen.

50 is a diagram for explaining shaking.

Referring to FIG. 50 , when a user shakes one edge of the flexible device 100 while holding it, the flexible device 100 is alternately bent in a Z+ direction and a Z− direction. The portion gripped by the user maintains the flat state (F), and the remaining portion is bent based on the boundary line (L) to form a bending region (B). As shown in FIG. 50 , the direction held by the user may be defined as the X+ direction, and the opposite direction may be defined as the X- direction.

When shaking is performed as shown in FIG. 50 , when a shaking operation is performed while a plurality of objects OB1 , OB2 , and OB3 are displayed on the screen of the display unit 160 , the objects are moved in the X-direction. is displayed as When the objects OB1, OB2, OB3 move to the boundary portion in the X-direction, the display is deleted.

51 illustrates an operation of a flexible device in which bending and hold is performed in a corner area.

According to FIG. 51 , when the first application APP 1 is executed and the execution screen 5100 is displayed, the corner is bent and the state is maintained, the new area 5110 is located in the edge area including the corner ) is opened. That is, an edge area is divided based on the end point of the boundary line, and a new area 5110 is opened in the edge area.

The flexible device 100 displays the original screen 5100 and the execution screen of the other application APP 2 in the new area 5110 .

As described above, when a touch is made in two areas while a plurality of different applications are running, a desktop screen or other basic user interface (UI) may be displayed instead of an application execution screen displayed in the two areas. For example, when two regions are touched at the same time, or an operation is made to spread left and right while being touched at the same time, the two regions 5100 and 5110 may be divided left and right to be converted to a desktop screen or a basic UI.

Alternatively, if multi-touch is made to the two areas while the two areas 5100 and 5110 are being displayed and a flick is performed in the form of collecting touch points in the boundary direction, the positions of the execution screens of APP1 and APP2 may be changed. .

In this state, when the hold state is released, it returns to the original screen 5100 again.

In addition, in FIG. 51 , the two regions 5100 and 5110 are clearly separated based on one boundary line, but in the case of general bending in which the radius of curvature is greater than or equal to a certain value, not bending with a small radius of curvature like folding. The boundary lines between screens may be smoothly connected. That is, while displaying the application execution screen to overlap in the curved area, a transparent gradation effect may be applied to make it appear natural, or it may be expressed as if the two areas overlap each other by giving a mosaic effect.

52 shows another example of an operation performed when bending and holding is performed at a corner portion.

Referring to FIG. 52 , a notification window displaying various status information related to a currently running application may be displayed at the corner. In FIG. 52 , when the flexible device 100 is executing a messenger program, an execution screen of the messenger program is displayed on the screen 5200 . In this state, information notifying the current state of the user himself or the other party may be displayed on the notification window 5210 .

The user may change the state by touching the notification window 5210 . For example, when the notification window 5210 is touched in FIG. 52 , the user's current state is changed to the Do Not Disturb state, and information thereof is displayed on the notification window 5210 . The user may cancel the do not disturb state by displaying the notification window 5210 again. Alternatively, information on a log-in acquaintance may be displayed in the notification window 5210 .

When the user no longer needs the notification window 5210, the user may remove the notification window by unfolding the corners to their original state. 52 illustrates that the bending and hold is performed in a diagonal direction from the corner, so that the message displayed in the notification window is horizontally aligned with the bending line. However, the present invention is not limited thereto, and by rotating the angle of the alignment direction of the message clockwise, the message may be aligned parallel to the upper edge of the screen 5200 rather than the bending line.

53 shows another example of a function performed when bending is performed. Specifically, according to FIG. 53 , when bending is performed in which a partial area is turned back while an arbitrary screen 5300 is being displayed, the display area is divided into two based on the boundary line. The original screen 5300 may be displayed in one of the first areas 5300(a). In this case, the layout, size, etc. of the original screen 5300 may be adjusted to fit the first area 5300(a). On the other hand, the second region 5300(b) on the opposite side may be inactivated.

Although FIG. 53 illustrates a case in which the flexible device 100 is bent in a vertical direction, the same operation may be performed even when it is deformed in a horizontal direction or a diagonal direction. For example, when bending in the diagonal direction in FIG. 53 and the state is held, the screen is divided into two triangles. A thumbnail image or a list may be displayed on one screen, and an object selected on the thumbnail image or the list may be enlarged or displayed on the other screen.

On the other hand, when folding is performed in the opposite direction to FIG. 53 and both edges come into contact with each other based on the center of the screen, the controller 120 turns off the flexible device 100 or deactivates only the display unit 160 or , can be switched to the standby state. In this state, when the contact state is opened by a predetermined interval or more, the flexible apparatus 100 may be automatically turned on or the display unit 160 may be turned on again. In this case, the screen brightness state may be adjusted according to the unfolded angle and time.

As described above, bending may be performed in various forms at various locations, and accordingly, various applications or functions may be executed or an operation of changing a screen layout may be performed.

On the other hand, in the above-described various embodiments, the horizontal length of the display unit 160 is shown to be longer than the vertical length, but this is only an example, and the size, shape, aspect ratio, etc. of the display unit 160 depend on the type of the flexible device. may be designed differently.

54 is a view for explaining a method of performing a menu navigation operation according to a bending shape in the flexible device having the display unit 160 having a length in a vertical direction longer than a length in a horizontal direction. Referring to FIG. 54 , the flexible apparatus 100 may display a menu screen 5400 including a plurality of menus. The menu screen 5400 may be displayed when a specific menu is selected or a specific bending shape occurs.

When bending occurs while the menu screen 5400 is being displayed, the controller 120 performs a menu navigation operation for the plurality of menus 5410 to 5450 according to the bending type. The menu navigation operation refers to various operations for checking and selecting a menu, such as a menu movement operation, a menu selection operation, a menu page switching operation, a menu scroll operation, and an upper and lower menu display operation.

The menu movement operation refers to an operation in which a cursor or other selection mark is moved between menus, and the menu selection operation refers to an operation in which one menu is selected. The menu page switching operation refers to an operation of switching to a previous menu page or a next menu page based on a current menu page in a state in which menus are arranged in units of pages. The menu scroll operation refers to an operation of scrolling menus that are not displayed on the screen in one menu page so that they appear on the screen or disappear. The upper and lower menu display operation refers to an operation of displaying a submenu subordinate to the menu when one menu is selected, or an operation of displaying an upper menu subordinate to the menu.

Referring to FIG. 54 , when the upper right corner is bent once while the first menu 5410 is highlighted on the menu screen 5400 , a menu movement operation in which the highlight display is moved to the next menu 5420 is performed. After that, when the upper right corner is bent once again, the highlight is moved to the next menu 5430 . In this state, when the left edge region is bent, the highlighted menu 5430 is selected, and a sub-menu screen 5500 subordinate to the menu 5430 is displayed. On the lower menu screen 5500 , lower menus 5431 to 5434 subordinate to the upper menu 5430 are displayed. A highlight is also displayed on one of the sub-menus 5431 to 5434 on the sub-menu screen 5500 . Accordingly, when the upper corner is bent again while the sub-menu screen 5500 is displayed, the highlight display may be moved. In addition, when the left edge region is bent in a state in which one sub-menu is highlighted, the corresponding sub-menu may be selected and a UI screen corresponding to the sub-menu may be displayed.

Meanwhile, although not shown in FIG. 54 , when there are too many menus to be displayed on one menu screen, the menu scroll operation may be performed by bending the upper edge area or the lower edge area.

In the above description, the case where the menu is displayed in the form of a list has been described, but it goes without saying that the menu navigation operation may be performed according to the bending shape even when the menu is displayed in the form of an icon. In addition, although the bending shape in which the upper right corner or the left edge area is bent is exemplified in FIG. 54 , the characteristics of the bending shape and a menu navigation operation corresponding thereto may be variously matched and used.

In addition, it goes without saying that various basic operations such as zoom-in, zoom-out, channel zapping, and volume adjustment as well as menu navigation operations may be executed and controlled by the bending shape.

In the above, various operations have been described on the assumption that the flexible device is in the form of a flat plate, but the flexible device is not necessarily in the form of a flat plate and may be implemented in various forms according to embodiments. Hereinafter, various examples of the exterior configuration will be described.

54 is a diagram illustrating an example of a specific form of an external appearance of a flexible device. Referring to FIG. 54 , the flexible device 100 may include a body 5700 , a display unit 160 , and a grip unit 5710 .

The main body 5700 serves as a kind of case containing the display unit 160 . When the flexible device 100 includes various components as shown in FIG. 42 , components other than the display unit 160 and some sensors may be mounted on the main body 5700 .

The body 5700 includes a rotating roller (not shown) for rolling the display unit 160 . Accordingly, when not in use, the display unit 160 may be rolled around the rotating roller and embedded in the body 5700 . When the user grips and pulls the grip unit 5710 , the rotating roller rotates in the opposite direction to the rolling and the rolling is released, and the display unit 160 comes out of the main body 5700 . A stopper may be provided on the rotating roller. Accordingly, when the user pulls the grip unit 5710 over a certain distance, the rotation of the rotating roller is stopped by the stopper, and the display unit 160 may be fixed.

The user may execute various functions using the externally exposed display unit 160 . Meanwhile, when the user presses a button for releasing the stopper, the rotation roller rotates in the reverse direction while the stopper is released, and as a result, the display unit 160 may be rolled back into the body 5700 . The stopper may be in the form of a switch that stops the operation of the gear for rotating the rotating roller. For the rotating roller and the stopper, a structure used in a conventional rolling structure may be used as it is, and thus, detailed illustration and description thereof will be omitted.

Meanwhile, the main body 5700 includes a power supply unit 180 . The power supply unit 180 may be implemented in various forms, such as a battery connection unit in which a disposable battery is mounted, a secondary battery that a user can charge and use a plurality of times, a solar cell that generates power using solar heat, and the like. When implemented as a secondary battery, the user may charge the power supply unit 180 by connecting the main body 5700 and an external power source by wire.

Although the main body 5700 having a cylindrical structure is illustrated in FIG. 54 , the shape of the main body 5700 may be implemented as a rectangle or other polygons. Also, of course, the display unit 160 may be implemented in a form surrounding the outside of the main body or in various other forms, rather than being pulled to the outside in a state in which the display unit 5700 is built-in and exposed.

55 is a diagram illustrating a flexible display device in which the power supply unit 180 is detachable. Referring to FIG. 55 , the power supply unit 180 is provided on one edge of the flexible display device, and may be detachably attached.

The power supply unit 180 may be implemented with a flexible material, and may be bent together with the display unit 160 . Specifically, the power supply unit 180 may include a negative current collector, a negative electrode, an electrolyte, a positive electrode, a positive electrode current collector, and a covering portion covering them.

As an example, the current collector may be implemented with alloys such as TiNi with good elastic properties, pure metals such as copper and aluminum, carbon-coated pure metals, conductive materials such as carbon and carbon fibers, conductive polymers such as polypyrrole, etc. .

The negative electrode may be made of a negative electrode material such as a metal such as lithium, sodium, zinc, magnesium, cadnium, a hydrogen storage alloy, and lead, a nonmetal such as carbon, and a polymer electrode material such as organic sulfur.

The positive electrode may be made of a positive electrode material such as sulfur, metal sulfide, lithium transition metal oxide such as LiCoO2, SOCl2, MnO2, Ag2O, Cl2, NiCl2, NiOOH, or a polymer electrode. The electrolyte part may be implemented in a gel type using PEO, PVdF, PMMA, PVAC, or the like.

For the coating part, a general polymer resin may be used. For example, PVC, HDPE or epoxy resin may be used. In addition, any material that can be freely bent or bent while preventing damage to the cell type battery may be used as the covering part.

Each of the positive electrode and the negative electrode in the power supply unit 180 may include a connector for electrically connecting to the outside.

Referring to FIG. 55 , the connector is formed to protrude from the power supply unit 180 , and grooves corresponding to the position, size, and shape of the connector are formed in the display unit 160 . Accordingly, the power supply unit 180 may be coupled to the display unit 160 by coupling the connector and the groove. The connector of the power supply unit 180 may be connected to a power connection pad (not shown) inside the flexible device 100 to supply power.

In FIG. 55 , the power supply unit 180 is illustrated in a form detachable from one edge of the flexible device 100 , but this is only an example, and the position and shape of the power unit 180 may vary depending on product characteristics. can For example, when the flexible device 100 is a product having a certain thickness, the power supply unit 180 may be mounted on the rear surface of the flexible device 100 .

56 illustrates a case in which the flexible device 100 is implemented as a three-dimensional display device instead of a flat panel display device. Referring to FIG. 56 , the display unit 160 is provided on one side of the flexible display apparatus 100 , and various hardware such as buttons, speakers, microphones, and IR lamps are provided on the other surface.

The flexible device 100 as shown in FIG. 56 may be flexibly bent since the entire or part of the outer case is made of rubber or other polymer resin. Accordingly, all or part of the flexible device 100 may have flexible characteristics.

When bending is performed, the flexible apparatus 100 may perform a new operation different from the previous operation. For example, while performing a remote control function for controlling an external device in normal times, when bending is performed in one area, a telephone function may be performed. When a remote control function is performed, a remote control button may be displayed on the display unit 160 , and when a telephone function is performed, a dial pad may be displayed on the display unit 160 .

57 illustrates a case in which the flexible device is implemented in a circular shape. Accordingly, the flexible device 100 performs different operations visually and functionally according to the laid or folded shape. For example, a picture or other content may be displayed when placed horizontally on the floor, and a table clock function may be performed when placed vertically on the floor. Alternatively, when the central portion is bent by about 90 degrees, the notebook PC function may be performed. In this case, the soft keyboard may be displayed in one of the folded areas and the display window may be displayed in the other area.

In addition, the flexible device may be implemented in various forms.

As described above, according to various embodiments of the present disclosure, various types of bending shapes may be determined using a plurality of motion detection sensors in addition to sensors such as a bend sensor or a touch sensor in a device having a flexible characteristic. When the bending shape is determined, the flexible device may execute a function matching the bending shape.

58 is a flowchart illustrating an operation control method of a flexible device according to various embodiments of the present disclosure.

Referring to FIG. 58 , sensing values are output from a plurality of motion detection sensors disposed at different positions across the front surface of the flexible device ( S5800 ).

The flexible apparatus 100 determines a bending shape using the detected sensing value (S5810). In order to determine the bending shape, the flexible apparatus 100 compares the results of the posture change detected by the plurality of motion detection sensors to determine at least one of a bending direction, a bending degree, a bending area, and a bending shape. Then, the bending shape is determined by comparing the bending shape information recorded in the database with the determination result. The posture change result may include a pitch angle, a roll angle, a yaw angle, etc. calculated based on a sensing value output from each motion detection sensor. Since the detailed calculation method and the bending shape determination method for the arrangement position and configuration of the motion detection sensors, the pitch angle, the roll angle, the yaw angle, and the like have been described above, a redundant description thereof will be omitted.

Accordingly, an operation corresponding to the bending shape is performed (S5820). As the bending form, there may be various types such as general bending, folding, multi-bending, bending and move, bending and flat, bending and hold, bending and twisting, twisting, swinging, shaking, rolling, and the like. The operation of the flexible apparatus may be performed differently depending on the type of each bending, its position, direction, strength, speed, number, time, etc., bending characteristics such as bending, and the operation state of the flexible apparatus at the time of the bending.

For example, an existing function or application may be terminated and a new function or application may be executed. Alternatively, a function currently being executed or a sub-function dependent on an application may be executed according to a bending type. For example, as described with reference to FIGS. 46 and 47 , a function supported by the currently executed application, such as a channel zapping operation or a bookmark function, may be executed. In addition, the operation mode may be switched according to the bending shape. For example, if bending occurs while operating in one of the camera mode and the video recording mode, the mode may be switched to another of the camera mode and the video recording mode. In addition, the screen layout may be changed according to the bending shape. Specifically, a new screen is displayed in the area specified by the bending shape, or the object display position is moved in such a way that objects such as images, photos, texts, and icons displayed on the screen slide in a direction inclined by the bending shape. You can also perform the action you want.

Since various operations corresponding to the bending shape have been described in detail in the above-described embodiments, further illustration and description thereof will be omitted.

On the other hand, in the case of an embodiment in which a configuration capable of detecting a user's manipulation, such as a touch sensor, a button, a pressure sensor, a grip sensor, a proximity sensor, etc. is further provided, the operation control method of the flexible device may include whether the user's manipulation is detected The method may further include controlling activation states of the plurality of motion detection sensors.

In addition, when a bend sensor is further included, the operation control method of the flexible device calculates a compensation value based on the sensing value output from the bend sensor while the preset calibration form is detected, while the calibration form is detected, The method may further include compensating for a sensing value of the bend sensor using the compensation value.

The bending shape determination method and the operation control method of the flexible device according to the above-described various embodiments may be implemented as a program and provided to the flexible display device.

Specifically, the steps of outputting sensed values from a plurality of motion detection sensors mounted on the body portion of the flexible device, determining a bending shape in which the body portion is bent by using the sensing values of the plurality of motion detection sensors, respectively, and the bending form A non-transitory computer readable medium in which a program to perform including the step of performing an operation corresponding to is stored (non-transitory computer readable medium) may be provided.

The non-transitory readable medium refers to a medium that stores data semi-permanently, rather than a medium that stores data for a short moment, such as a register, cache, memory, etc., and can be read by a device. Specifically, the various applications or programs described above may be provided by being stored in a non-transitory readable medium such as a CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM, and the like.

In addition, although preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above, and the technical field to which the present invention belongs without departing from the gist of the present invention as claimed in the claims In addition, various modifications may be made by those of ordinary skill in the art, and these modifications should not be individually understood from the technical spirit or perspective of the present invention.

110-1 ~ 110-n : Motion detection sensor
120: control unit
130: storage

Claims (20)

In the flexible device,
sensor;
flexible display; and
control the flexible display to display content,
When it is determined that the flexible display is folded in the first direction based on the sensing value output from the sensor, the display state of the content is adjusted and displayed in a first area among a plurality of areas divided according to the folding, and inactivate the second area among the plurality of areas,
When it is determined that both edges of the flexible display are in contact with each other in a state in which the flexible display is folded in a second direction opposite to the first direction based on the sensed value output from the sensor, the flexible display is deactivated and ,
When it is determined that both edges of the flexible display are not in contact with each other in a state in which the flexible display is folded in a second direction opposite to the first direction based on the sensed value output from the sensor, the flexible display is folded A flexible device comprising a; a control unit that determines a determined angle, and adjusts a brightness state of the flexible display based on the determined angle. According to claim 1,
The control unit is
The flexible device of claim 1, wherein the size and layout of the content are adjusted to correspond to the size of the first area. delete According to claim 1,
The sensor is
A flexible device, characterized in that it is respectively disposed in the corner area of the flexible device. According to claim 1,
The sensor is
a first motion detection sensor disposed at a center of a first edge region among edge regions of the flexible device; and
and a second motion detection sensor disposed at a center of a second edge region opposite to the first edge region among edge regions of the flexible device. According to claim 1,
The sensor is
It further includes; a bend sensor for detecting a bending state of the flexible device,
The control unit is
and determining whether the flexible display is folded using a sensing value output from the bend sensor. 7. The method of claim 6,
The control unit is
When a preset calibration type is detected, a compensation value is calculated based on the sensing value output from the bend sensor while the calibration type is detected,
The flexible device according to claim 1, wherein the sensing value of the bend sensor is compensated by using the compensation value. According to claim 1,
The sensor includes at least one of an acceleration sensor, a geomagnetic sensor, and a gyro sensor. delete delete A method for controlling a flexible device including a flexible display and a sensor, the method comprising:
displaying content on the flexible display;
When it is determined that the flexible display is folded in the first direction based on the sensing value output from the sensor, the display state of the content is adjusted and displayed in a first area among a plurality of areas divided according to the folding, and deactivating a second area among the plurality of areas; and
When it is determined that both edges of the flexible display are in contact with each other in a state in which the flexible display is folded in a second direction opposite to the first direction based on the sensing value output from the sensor, the flexible display is deactivated, When it is determined that both edges of the flexible display are not in contact with each other in a state in which the flexible display is folded in a second direction opposite to the first direction based on the sensed value output from the sensor, the flexible display is folded and determining an angle, and adjusting a brightness state of the flexible display based on the determined angle. 12. The method of claim 11,
Adjusting the display state of the content comprises:
The control method according to claim 1, wherein the size and layout of the content are adjusted to correspond to the size of the first area. delete 12. The method of claim 11,
The sensor is
Control method, characterized in that each disposed in the corner area of the flexible device. 12. The method of claim 11,
The sensor is
a first motion detection sensor disposed at a center of a first edge region among edge regions of the flexible device; and
and a second motion detection sensor disposed at a center of a second edge region opposite to the first edge region among edge regions of the flexible device. 12. The method of claim 11,
The sensor includes; a bend sensor for detecting a bending state of the flexible device;
The control method is
A control method, characterized in that it is determined whether the flexible display is folded using a sensing value output from the bend sensor. 17. The method of claim 16,
calculating a compensation value based on a sensing value output from the bend sensor while a preset calibration type is detected; and
Compensating the sensed value of the bend sensor by using the compensation value; Control method comprising the further comprising. 12. The method of claim 11,
The sensor includes at least one of an acceleration sensor, a geomagnetic sensor, and a gyro sensor. delete delete

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