KR102407596B1 - An electronic device including flexible display and content display method thereof - Google Patents

Abstract

An electronic device according to an embodiment of the present invention includes a main body; a flexible display electrically connected to the main body and mounted to be withdrawable from the main body; a sensing unit detecting the withdrawal of the flexible display; and a controller configured to determine a withdrawal amount of the flexible display based on a signal output from the sensing unit, and control the content displayed on the flexible display to be scrolled in a direction opposite to the extraction direction based on the withdrawal amount of the flexible display includes ;

Description

Electronic device including flexible display and content display method {AN ELECTRONIC DEVICE INCLUDING FLEXIBLE DISPLAY AND CONTENT DISPLAY METHOD THEREOF}

The present invention relates to an electronic device including a flexible display and a method for displaying content, and more particularly, a method for naturally displaying content in an electronic device including a flexible display mounted to be retractable from a main body in a display area that expands as the flexible display is pulled out is about

With the development of electronic technology, various types of displays are being developed. Recently, in order to meet the needs of users who want newer and more diverse functions, flexible displays have been developed. Flexible displays have the property of being able to be rolled like paper. Such a flexible display may be referred to as a rollable display.

The flexible display may be used in electronic devices such as TVs, mobile phones, and tablet PCs. For example, the flexible display may be embodied in the form of a wall-mounted TV by being detachably mounted from the TV body. In a state in which the TV is powered off, the flexible display is wound inside the TV body, and the display area may not be exposed to the outside or only a minimal area may be exposed. In addition, when the TV is powered on, the display area of the flexible display may be exposed to the outside by being drawn out from the main body. In order to take out the flexible display from the main body of the TV, the flexible display may be pulled out by human force or the flexible display may be automatically drawn out from the main body by a driving unit.

Meanwhile, as the flexible display is drawn out from the main body, the display area may be expanded.

When content is displayed on the display area while the display area is expanded in an electronic device including a flexible display mounted to be retractable from the main body, the position of the content displayed on the display area changes according to the expansion of the display area. .

The electronic device according to an embodiment of the present invention scrolls the content displayed on the display area according to the drawing speed and direction of the flexible display so that the content can be naturally displayed on the display area even when the display area is expanded.

An electronic device according to an embodiment of the present invention includes a main body; a flexible display electrically connected to the main body and mounted to be withdrawable from the main body; a sensing unit detecting the withdrawal of the flexible display; and determining an amount of drawing out of the flexible display based on a signal output from the sensing unit, and scrolling the content displayed on the flexible display in a direction opposite to the drawing out direction based on the drawing amount of the flexible display. It may include; a control unit for controlling the.

Here, the electronic device may further include a driving unit for drawing out the flexible display, and the controller may control the driving unit.

The controller may determine the retrieval speed of the flexible display based on the signal output from the sensing unit and determine the scroll speed based on the retrieval speed.

The controller may determine an amount of drawing of the flexible display based on a signal output from the sensing unit and determine the amount of scrolling based on the amount of drawing.

The controller may determine whether to display the content from the top or from the bottom on the flexible display according to the attribute of the content.

When the withdrawal amount coincides with a threshold value, the controller may provide a feedback corresponding to the threshold value. The threshold value includes a first value and a second value, and the controller provides a feedback corresponding to the first value when the withdrawal amount exceeds the first value, and provides a second value when the withdrawal amount exceeds the second value. You can provide feedback corresponding to a value of 2.

Here, the feedback is visual feedback, and the controller may control the flexible display to display a line corresponding to the threshold value on the flexible display.

When the flexible display is wound, the controller scrolls the content displayed on the flexible display in a direction opposite to the direction in which the flexible display is wound, and displays a black screen on an area not exposed to the outside of the flexible display. You can control the display.

In addition, when the flexible display is wound, the controller may scroll the content displayed on the flexible display in a direction opposite to the direction in which the flexible display is wound, and turn off an area that is not exposed to the outside of the flexible display.

According to another embodiment of the present invention, a content display method of an electronic device includes: detecting that a flexible display is drawn out from a main body; determining a drawing amount and a drawing direction of the flexible display; displaying content on a display area of the flexible display; and scrolling the content displayed on the flexible display in a direction opposite to the drawing direction of the flexible display based on the drawing amount of the flexible display.

The method may further include: determining a retrieval speed of the flexible display; and determining a scroll speed of the content based on the retrieval speed.

The method may further include determining the scroll amount based on the retrieval amount.

The method may further include; determining whether to display the content from the top or the bottom on the flexible display according to the attribute of the content.

The method may further include, when the withdrawal amount coincides with a threshold value, providing feedback corresponding to the threshold value.

The threshold value includes a first value and a second value, and the providing of the feedback includes: when the withdrawal amount exceeds the first value, providing a feedback corresponding to the first value, wherein the withdrawal amount exceeds the first value; If it exceeds , feedback corresponding to the second value may be provided.

The feedback is visual feedback, and the providing of the feedback may include displaying a line corresponding to the threshold value on the flexible display.

The method may include: detecting a winding of the flexible display; and scrolling the content displayed on the flexible display in a direction opposite to the winding direction of the flexible display.

The method may further include displaying a black screen on a non-exposed area of the flexible display.

The method may further include turning off a screen of an area not exposed to the outside of the flexible display.

An electronic device according to an embodiment of the present invention includes: a main body, a flexible display electrically connected to the main body and mounted to be withdrawn from the main body, and a sensing unit for detecting withdrawal of the flexible display; and determining an amount of drawing out of the flexible display based on a signal output from the sensing unit, and scrolling the content displayed on the flexible display in a direction opposite to the drawing out direction based on the drawing amount of the flexible display. Content can be naturally displayed while the display area is expanded by including a control unit for controlling the .

1 is a block diagram of an electronic device according to an embodiment of the present invention.
FIG. 2 is a flowchart illustrating a content display method according to an electronic device pulling out a flexible display according to an embodiment of the present invention.
FIG. 3 is a diagram illustrating a process in which content is displayed on a display area according to a flexible display pull-out of an electronic device according to an embodiment of the present invention.
4 is a diagram illustrating that the display area of the flexible display is expanded as the flexible display of the electronic device is drawn out according to an embodiment of the present invention.
5 is a diagram illustrating a process in which content disappears from a display area as the flexible display is rewound in an electronic device according to an embodiment of the present invention.
6 is a diagram illustrating a process in which content disappears from the flexible display as the flexible display is rewound in the electronic device according to an embodiment of the present invention.
7 to 8 are diagrams illustrating a process of displaying content on a flexible display according to a flexible display withdrawal in an electronic device according to another embodiment of the present invention.
9 is a flowchart illustrating a processing process when an electronic device is powered on according to another embodiment of the present invention.
10 is a flowchart illustrating a processing process when the power of an electronic device is turned off according to another embodiment of the present invention.
11 is a block diagram of an electronic device according to another embodiment of the present invention.
12 to 15 are diagrams illustrating content displayed on a display area when a flexible display is pulled out of an electronic device according to another embodiment of the present invention.
16A and 16B are diagrams illustrating an example of detecting a withdrawal amount of a flexible display using a pattern.
17A and 17B are diagrams illustrating an example of detecting a withdrawal amount of a flexible display using a gyro sensor.
18A and 18B are diagrams illustrating an example of detecting a withdrawal amount of a flexible display using a gyro sensor and a proximity sensor.
19 is a diagram illustrating an example of sensing the amount of drawing of the flexible display using a variable resistor.
20 is a diagram illustrating another example of sensing the amount of drawing of the flexible display using a variable resistor.

Hereinafter, various embodiments of the present invention will be described with reference to the accompanying drawings. However, this is not intended to limit the specific embodiments of the present invention, and it should be understood that various modifications, equivalents, and/or alternatives of the embodiments of the present invention are included. In connection with the description of the drawings, like reference numerals may be used for like components.

In this specification, expressions such as “have,” “may have,” “include,” or “may include” indicate the presence of a corresponding characteristic (eg, a numerical value, function, operation, or component such as a part). and does not exclude the presence of additional features.

In this specification, expressions such as “A or B,” “at least one of A or/and B,” or “one or more of A or/and B” may include all possible combinations of the items listed together. . For example, “A or B,” “at least one of A and B,” or “at least one of A or B” means (1) includes at least one A, (2) includes at least one B; Or (3) it may refer to all cases including both at least one A and at least one B.

Expressions such as “first,” “second,” “first,” or “second,” used in various embodiments may modify various components regardless of order and/or importance, and the corresponding components do not limit them Expressions can be used to distinguish one component from another. For example, the first user equipment and the second user equipment may represent different user equipment regardless of order or importance. For example, without departing from the scope of the present disclosure, a first component may be referred to as a second component, and similarly, the second component may also be renamed as a first component.

One component (eg, a first component) is "coupled with/to (operatively or communicatively)" to another component (eg, a second component) When referring to "connected to", it should be understood that an element may be directly connected to another element or may be connected through another element (eg, a third element). On the other hand, when it is said that a component (eg, a first component) is "directly connected" or "directly connected" to another component (eg, a second component), a component different from a component It may be understood that no other component (eg, a third component) exists between the elements.

The expression “configured to (or configured to)” as used herein depends on the context, for example, “suitable for,” “having the capacity to” ,” “designed to,” “adapted to,” “made to,” or “capable of” can be used interchangeably. The term “configured (or set up to)” may not necessarily mean only “specifically designed to” hardware. Instead, in some circumstances, the expression “a device configured to” may mean that the device is “capable of” with other devices or parts. For example, the phrase “a processor configured (or configured to perform) A, B, and C” refers to a dedicated processor (eg, an embedded processor), or one or more software programs stored in a memory device, to perform the corresponding operations. By doing so, it may refer to a generic-purpose processor (eg, a CPU or an application processor) capable of performing corresponding operations.

The content may include a moving picture, still image, text, graphic object, and web page displayed on the display area of the flexible display. Also, the content may include one content or a plurality of content.

The display area of the flexible display is an area in which the flexible display is drawn out from the main body and exposed to the outside, and may also be referred to as a screen. That is, the display area and the screen will be used as the same meaning in the following description.

The terms used herein are used only to describe one specific embodiment, and may not be intended to limit the scope of another embodiment. The singular expression may include the plural expression unless the context clearly dictates otherwise. All terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art of the present disclosure. Commonly used terms defined in the dictionary may be interpreted as having the same or similar meaning as the meaning in the context of the related art, and unless explicitly defined in the present specification, are not interpreted in an ideal or excessively formal meaning . In some cases, even terms defined in this specification cannot be construed to exclude 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 of an electronic device 100 according to an embodiment of the present invention. Referring to FIG. 1 , a main body 110 and a flexible display 103 of an electronic device 100 are illustrated in FIG. 1 . The electronic device 100 may be a TV, a mobile phone, a tablet PC, or the like. The main body 110 may include a driving unit 101 , a control unit 105 , and a sensing unit 107 . In addition, a storage space for accommodating the flexible display 103 may be provided in the body 110 .

The flexible display 103 may be wound into the body 110 or may be mounted to be withdrawn from the body 110 . The flexible display 103 may be driven by the driving unit 101 to be automatically drawn out from the main body 110 . Alternatively, the flexible display 103 may be manually withdrawn from the main body 110 . When the flexible display 103 is drawn out from the main body 110 , the display area may be exposed to the outside. The display area is an area in which a portion of the flexible display 103 is drawn out from the main body 110 and exposed to the outside. On the other hand, a portion of the flexible display 103 wound inside the main body 110 may be referred to as a screen off region. That is, the flexible display 103 may include a screen-off area and a display area.

The size of the display area of the flexible display 103 may change according to the amount drawn out from the main body 110 . Also, the size of the screen-off area may change according to the amount drawn out of the main body 110 .

The driving unit 101 may take out the flexible display 103 . The driving unit 101 may include an actuator, and the flexible display 103 may be drawn out of the main body 110 by the actuator. For example, the driving unit 101 may include a motor and a gear, and the flexible display 103 may be drawn out by rotating the motor under the control of the control unit 105 . As the motor rotates, the flexible display 103 may be wound or unwound, and may be drawn out from the body 110 .

The sensing unit 107 may detect the withdrawal and/or the amount of withdrawal of the flexible display 103 . The sensing unit 107 may include an optical sensor, a gyro sensor, a proximity sensor, and an encoder. The optical sensor may be a barcode sensor, and by recognizing a barcode printed on the flexible display 103 , the amount of withdrawal and withdrawal of the flexible display 103 may be detected. In addition, the optical sensor may detect a color pattern or a black-and-white pattern printed on the flexible display 103 to detect the amount of drawing and/or drawing of the flexible display 103 .

The gyro sensor may be mounted on the flexible display 103 , and a signal output from the gyro sensor may be changed according to an amount drawn out of the flexible display 103 .

The encoder may output an electrical signal based on the number of rotations of the motor. The amount of drawing is changed according to the rotation speed of the motor, and the amount of drawing out of the flexible display 103 can be measured from a signal output from the encoder.

The controller 105 controls the overall operation of the electronic device 100 , and may determine the amount of drawing of the flexible display 103 based on the signal output from the sensing unit 107 . A method of determining the withdrawal amount of the flexible display 103 will be described later with reference to FIGS. 16 to 20 .

The controller 105 may control the content displayed on the display area of the flexible display 103 to be scrolled in a direction opposite to the drawing direction of the flexible display 103 based on the amount of drawing of the flexible display 103 .

As the flexible display 103 is drawn out, the size of the display area of the flexible display 103 is changed. The controller 105 may measure the withdrawal amount and the withdrawal speed of the flexible display 103 based on the signal output from the sensing unit 107 . The controller 105 may scroll the content displayed on the flexible display 103 in a direction opposite to that of the flexible display 103 based on the amount and speed at which the flexible display 103 is drawn out. For example, when the flexible display 103 is drawn out in the lower direction, the controller 105 may scroll the content displayed on the flexible display 103 in an upper direction opposite to the drawing direction of the flexible display 103. . In this case, the scroll speed of the content may be proportional to the retrieval speed of the flexible display 103 . For example, when the retrieval speed of the flexible display 103 is 0.5 m/sec, the content scroll speed may be 0.5 m/sec.

That is, the controller 105 measures the speed at which the flexible display 103 is drawn out and controls the content displayed on the display area. The controller 105 may calculate the number of pixels to be moved in the display area according to a refresh rate and move the screen layout in a direction opposite to the direction in which the flexible display 103 is expanded.

2 is a flowchart illustrating a content display method according to the flexible display 103 retrieval of the electronic device 100 according to an embodiment of the present invention.

When the power of the electronic device 100 is turned on, the controller 105 detects an initial position of the flexible display 103 . The flexible display 103 may be completely wound inside the main body 100 of the electronic device 100 so that there may be no area exposed to the outside. Alternatively, a portion of the flexible display 103 may be exposed to the outside of the main body 110 of the electronic device 100 . The control unit 105 detects the withdrawal of the flexible display 103 based on the signal output from the sensing unit 107 (step S201). In addition, the control unit 105 determines the withdrawal amount and the withdrawal direction of the flexible display 103 based on the signal output from the sensing unit 107 (step S203). In order to determine the withdrawal amount, the controller 105 may receive a signal output from the sensor 107 to determine the initial withdrawal amount. When the pattern for detecting the withdrawal amount is printed on the flexible display 103 , the controller 105 may determine the withdrawal amount of the flexible display 103 by analyzing the pattern information scanned by the detection unit 107 . For example, when the power of the electronic device 100 is turned on in a state in which the flexible display 103 is drawn out by 20 cm from the main body 100 before the power of the electronic device 100 is turned on, the controller 105 may Information on the pattern of the flexible display 103 output from the sensing unit 107 may be received, and it may be determined that the current amount of drawing of the flexible display 103 is 20 cm.

The controller 105 determines the amount of drawing of the flexible display 103 and determines the size of the display area according to the amount of drawing. When the size of the display area is determined, the controller 105 displays the content on the flexible display 103 in consideration of the area of the flexible display 103 (step S205). For example, the total size of the flexible display 103 is 55 If the length of the current flexible display is 20 cm, the controller 105 controls the flexible display 103 to display content corresponding to 20 cm from the top among all the contents on the screen. can do.

The controller 105 may control the driving unit 103 to take out the flexible display 103 . The control unit 105 may detect the drawing speed and direction of the flexible display 103 based on the signal output from the sensing unit 107 . For example, the controller 105 may measure the rotation speed of the motor from a signal output from the encoder and determine the drawing speed, direction, and drawing amount of the flexible display 103 .

As the flexible display 103 is drawn out, the amount of drawing may be continuously changed, and accordingly, the size of the display area may also be continuously changed. The control unit 105 determines the withdrawal speed, the withdrawal direction, and the withdrawal amount of the flexible display 103 based on the signal output from the sensing unit 107 , and determines the withdrawal speed, the extraction direction, and the withdrawal amount of the flexible display 103 . Accordingly, the content displayed on the flexible display 103 can be scrolled in a direction opposite to the drawing direction of the flexible display 103 (step S207). For example, the flexible display 103 moves downward at a speed of 0.5 m/sec. , the controller 105 may scroll the content displayed on the flexible display 103 in the upper direction at a speed of 0.5 m/sec.

The controller 105 may determine the retrieval speed of the flexible display 103 based on the signal output from the sensor 107 , and may determine the content scroll speed based on the determined retrieval speed.

When the retrieval amount is determined, the controller 105 may determine the content scroll amount based on the retrieval amount. The content has properties, and the controller 105 may determine whether to display the content from the top or the bottom on the flexible display 103 according to the properties of the content.

When the withdrawal amount gradually increases as the flexible display 103 is drawn out and the withdrawal amount matches the threshold value, the controller 105 may provide feedback corresponding to the threshold value.

The threshold includes a first value and a second value, and when the withdrawal amount exceeds the first value, the control unit 105 provides a feedback corresponding to the first value, and when the withdrawal amount exceeds the second value, the second value You can provide feedback corresponding to the value.

Here, the feedback is visual feedback, and when the display area of the flexible display 103 expands to reach the first value, the control unit 105 displays a line corresponding to the first value on the flexible display 103, and the second When the value is reached, the flexible display 103 may be controlled to display a line corresponding to the second value on the flexible display 103 .

For example, when the area of the flexible display 103 is expanded and the horizontal:vertical ratio of the display area matches a value of a horizontal length of 4:3, the controller 105 displays a line corresponding to 4:3 in the display area. The flexible display 103 may be controlled to display . When the area of the flexible display 103 is continuously expanded and the horizontal:vertical ratio of the display area matches the horizontal length value of 16:9, the controller 105 draws a line corresponding to 16:9 in the display area. The flexible display 103 may be controlled to display.

When the flexible display 103 is wound, the controller 105 detects the winding of the flexible display 103 . The control unit 105 may sense the winding of the flexible display 103 based on the signal output from the sensing unit 107 . When the flexible display 103 is wound and entered into the main body 110 , the controller 105 may scroll the content displayed on the flexible display 103 in a direction opposite to the direction in which the flexible display 103 is wound. The controller 105 may control the flexible display 103 to display a black screen in an area where the flexible display 103 is wound and not exposed to the outside. Also, the controller 105 may control the flexible display 103 to screen off an area that is not exposed to the outside as the flexible display 103 is wound.

3 is a diagram illustrating a process in which content is displayed on a screen according to the amount of withdrawal of the flexible display of the electronic device according to an embodiment of the present invention.

Referring to FIG. 3 , a main body 301 and a flexible display 303 are illustrated. Sizes 311 , 313 , and 315 of the content displayed on the flexible display may be changed according to the amount of the flexible display 303 withdrawn. For example, in a state in which the power is turned off, the flexible display 303 is not exposed to the outside of the main body 301, the flexible display 303 is drawn to the outside of the main body 301 by approximately 30 cm 321, and the flexible display ( A state 323 in which the 303 is drawn out of the main body 301 by approximately 70 cm and a state 325 in which the flexible display 303 is drawn out of the main body 301 by approximately 105 cm are illustrated in stages. When the flexible display 303 is fully exposed, the length of the display area may be 105 cm. The length of the display area of the flexible display 303 may be less than or equal to the length of the extension of the flexible display 303 .

When the power is turned on, the flexible display 303 is drawn out of the main body 301 , and accordingly, the display area may be exposed and expanded. As the display area expands, the sizes 311 , 313 , and 315 of content displayed on the display area may change.

For example, when the size of the entire display area is 85 inches (105 cm in height), the vertical length of content displayed in the display area may be 105 cm.

When the power is turned on and the flexible display 303 starts to be drawn out by the rotation of the motor, the display area is expanded, and accordingly, the size of content displayed on the display area may also be changed. Content may be displayed on the display area from the top, and as the flexible display 303 is drawn out in the bottom direction 331 , the content displayed on the display area is displayed in the upper direction opposite to the drawing direction of the flexible display 303 . can be scrolled.

For example, when the flexible display 303 is drawn out by approximately 30 cm in the downward direction ( 321 ), content 311 having a vertical length of 30 cm may be displayed in the display area. In this case, 30 cm of the content 311 may be displayed on the display area in the vertical direction from the top of the entire content.

If the flexible display 303 is drawn out approximately 70 cm in the lower direction ( 323 ), the content may be scrolled in the upper direction so that the content 313 having a vertical length of 70 cm may be displayed on the display area. In this case, 70 cm of the content 313 may be displayed on the display area in the vertical direction from the top of the entire content.

If the flexible display 303 is drawn out by approximately 105 cm in the lower direction ( 325 ), the content is scrolled in the upper direction so that the content 315 having a vertical length of 105 cm may be displayed in the display area. In this case, 105 cm of the content 315 may be displayed on the display area in the vertical direction from the top of the entire content.

Although the flexible display is drawn out from the main body and the display area is expanded, in order for the content displayed on the display area to look natural, the moving speed of the flexible display or the expansion speed of the display area must match the scroll speed of the content. That is, the speed of drawing out the flexible display and the speed of moving the content displayed on the display area should match.

Table 1 illustrates the number of pixels to be moved per frame according to the display size when the flexible display resolution is Full High Definition (FHD).

screen size diagonal Vertical Pixel per cm time basis speed standard 55-inch 138 cm 68 cm 15.88235294 9 13.23529412 65-Inch 163 cm 80 cm 13.5 9 11.25 75-Inch 189 cm 93 cm 11.61290323 9 9.677419355 85-inch 214 cm 105 cm 10.28571429 9 8.571428571

For example, if the size of the flexible display is 55 inches, the number of horizontal pixels is 1920, the number of vertical pixels is 1080, the diagonal length is 138 cm, and the vertical length is 68 cm. Based on the vertical length, there are 15.88235294 pixels per cm. When the retrieval speed of the flexible display is 1 m/sec and the number of frames of content displayed per second is 120, the content needs to be moved by approximately 13 pixels every time one frame is displayed. That is, the content displayed on the display area should be moved by approximately 13 pixels in the upper direction every 0.0083 seconds. In addition, when the retrieval time of the flexible display is 1 second and the number of frames of content displayed per second is 120, the content must be moved upward by 9 pixels every time one frame is displayed. That is, the content displayed on the display area should be moved by 9 pixels in the upper direction every 0.0083 seconds. In this case, the pull-out speed of the flexible display is 0.68 m/sec.

As another example, if the resolution of the flexible display is FHD (Full High Definition) and the display size is 65 inches, the number of horizontal pixels is 1920, the number of vertical pixels is 1080, the diagonal length is 168 cm, and the vertical length is It is 80 cm. Based on the vertical length, there are 13.5 pixels per 1 cm. When the retrieval speed of the flexible display is 1 m/sec and the number of frames of content displayed per second is 120, the content needs to be moved by approximately 11 pixels every time one frame is displayed. That is, the content displayed on the display area should be moved by approximately 11 pixels in the upper direction every 0.0083 seconds. In addition, if the retrieval time of the flexible display is 1 second and the number of frames of content displayed per second is 120, the content must be moved upward by 9 pixels every time one frame is displayed. That is, the content displayed on the display area should be moved by 9 pixels in the upper direction every 0.0083 seconds. In this case, the drawing speed of the flexible display is 0.8 m/sec.

Table 2 illustrates the number of pixels to be moved per frame according to the display size when the flexible display resolution is Ultra High Definition (UHD).

screen size diagonal Vertical Pixel per cm time basis speed standard 55-inch 138 cm 68 cm 31.76470588 18 26.47058824 65-Inch 163 cm 80 cm 27 18 22.5 75-Inch 189 cm 93 cm 23.22580645 18 19.35483871 85-inch 214 cm 105 cm 20.57142857 18 17.14285714

When the size of the flexible display is 75 inches, the number of horizontal pixels is 3840, the number of vertical pixels is 2160, the diagonal length is 189 cm, and the vertical length is 93 cm. Based on the vertical length, there are 23.22580645 pixels per cm. When the retrieval speed of the flexible display is 1 m/sec and the number of frames of content displayed per second is 120, the content needs to be moved by approximately 19 pixels every time one frame is displayed. That is, the content displayed on the display area should be moved by approximately 19 pixels in the upper direction every 0.0083 seconds. Also, when the retrieval time of the flexible display is 1 second and the number of frames of content displayed per second is 120, the content needs to be moved by 18 pixels every time one frame is displayed. That is, the content displayed on the display area should be moved by 18 pixels in the upper direction every 0.0083 seconds. In this case, the pull-out speed of the flexible display is 0.93 m/sec.

When the size of the flexible display is 85 inches, the number of horizontal pixels is 3840, the number of vertical pixels is 2160, the diagonal length is 214 cm, and the vertical length is 105 cm. Based on the vertical length, there are 20.57142857 pixels per 1 cm. When the retrieval speed of the flexible display is 1 m/sec and the number of frames of content displayed per second is 120, the content needs to be moved by approximately 17 pixels every time one frame is displayed. That is, the content displayed on the display area should be moved by approximately 17 pixels in the upper direction every 0.0083 seconds. Also, when the retrieval time of the flexible display is 1 second and the number of frames of content displayed per second is 120, the content needs to be moved by 18 pixels every time one frame is displayed. That is, the content displayed on the display area should be moved by 18 pixels in the upper direction every 0.0083 seconds. In this case, the pull-out speed of the flexible display is 1.05 m/sec.

4 is a diagram illustrating that the display area of the flexible display 303 is expanded as the flexible display 303 of the electronic device 100 is drawn out according to an embodiment of the present invention.

In the first drawing of FIG. 4 , no content is displayed on the display area 401 of the flexible display 303 . That is, the flexible display 303 may be wound inside the main body 301 or the power may be turned off.

In the second drawing, the flexible display 303 may include a display area 411 and a screen-off area 410 . Also, a black screen may be displayed in the screen off area 410 . As the flexible display 303 is drawn out in the lower direction 421 , the content 403 is scrolled in the upper direction 423 and the display area 411 is expanded. The content is displayed from the bottom of the display area 411 and may be scrolled in the upper direction 423 as the flexible display 303 is drawn out. Also, the screen off area 410 may be gradually reduced as the content 403 is scrolled in the upper direction 423 .

In the third figure, the flexible display 303 may include a display area 413 and a screen-off area 412 . Also, a black screen may be displayed in the screen off area 412 . As the flexible display 303 is further drawn out in the lower direction 421 , the content 405 is further scrolled in the upper direction 423 and the display area 413 is further expanded. The content is displayed from the bottom of the display area 413 and may be scrolled in the upper direction 423 as the flexible display 303 is drawn out. Also, the screen off area 412 may be further reduced as the content 413 is scrolled in the upper direction 423 .

In the fourth drawing, the flexible display 303 is completely drawn out of the main body 301 so that only the display area 415 may exist in the flexible display 303 .

5 is a diagram illustrating a process in which content disappears from a screen as the flexible display 503 is rewound in an electronic device according to an embodiment of the present invention.

In the first drawing, the flexible display 503 is completely drawn out of the main body 501 , and content 511 may be displayed on the entire display area 521 of the flexible display 503 .

When the flexible display 503 is rewound, the flexible display 503 may be wound into the body 501 , and thus the display area may be reduced. As the display area is reduced, the content displayed on the screen may be scrolled in a direction opposite to the moving direction 531 of the flexible display 503 . That is, the content displayed on the screen may be scrolled downward.

The second diagram shows a state in which a portion of the flexible display 503 is wound into the body 501 . As the flexible display 503 is rewound, a portion of the flexible display 503 is wound into the body 501 , and thus the display area 523 is reduced. For example, when the size of the entire display area of the flexible display 503 is 85 inches and the vertical length is 105 cm, the vertical length of the display area 523 may be 70 cm. At this time, only 70 cm of the content 513 displayed on the screen is displayed in the vertical direction from the top among all the contents. That is, the content is scrolled in the lower direction, and a part of the entire content is scrolled and disappears, and only 70 cm from the upper part can be displayed.

The third diagram shows a state in which the flexible display 503 is further wound into the body 501 . As the flexible display 503 continues to be rewound, a portion of the flexible display 503 is further wound into the body 501 , and thus the display area 525 is further reduced. For example, when the size of the entire display area of the flexible display 503 is 85 inches and the length in the vertical direction is 105 cm, the vertical length of the display area 525 may be 30 cm. At this time, only 30 cm of the content 515 displayed on the screen is displayed in the vertical direction from the top among all the contents. That is, the content is scrolled in the lower direction, a part of the entire content is scrolled and disappears, and only 30 cm from the upper part can be displayed.

The fourth diagram shows a state in which the flexible display 503 is completely wound into the body 501 . As the flexible display 503 is completely wound into the body 501 , the flexible display is not exposed to the outside, the display area disappears, and the content displayed on the screen disappears.

6 is a diagram illustrating a process in which content disappears from the flexible display 503 as the flexible display 503 is rewound in the electronic device 100 according to an embodiment of the present invention.

In the first drawing, the flexible display 503 is completely drawn out of the main body 501 so that only the display area 621 may exist in the flexible display 503 . That is, the entire flexible display 503 may be the display area 621 , and the content 611 may be displayed on the screen in full size. For example, when the total size of the content 611 is 85 inches, the vertical length of the content 611 may be 105 cm.

When the flexible display 503 is rewound, the flexible display 503 may be wound into the body 501 , and thus the display area 621 may be reduced. As the display area 621 is reduced, the content displayed on the screen may be scrolled in a direction 633 opposite to the movement direction 631 of the flexible display. That is, the content displayed on the screen may be scrolled in the downward direction 633 .

In the second drawing, a display area 623 and a screen-off area 622 may exist in the flexible display 503 . Also, a black screen may be displayed in the screen off area 622 . As the flexible display 503 is rewound in the upper direction 631 , the content 613 is scrolled in the lower direction 633 and the display area 623 is reduced. As the flexible display 503 is wound into the body 501 , the content 613 may be scrolled in a downward direction 633 . Also, the screen off area 622 may gradually expand as the content 613 is scrolled in the bottom direction 633 .

In the third figure, a display area 625 and a screen-off area 624 may exist in the flexible display 503 . Also, a black screen may be displayed in the screen off area 624 . As the flexible display 503 is further rewound in the top direction 631 , the content 615 is further scrolled in the bottom direction 633 and the display area 625 is further reduced. Also, the screen off area 624 may be gradually enlarged as the content 615 is scrolled in the lower direction 633 .

In the fourth drawing, the flexible display 503 is completely rewound into the body 501 so that only the screen-off area 617 may exist in the flexible display 503 .

7 to 8 are diagrams illustrating a process in which content is displayed on the flexible display 703 when the flexible display 703 is pulled out in the electronic device 100 according to another embodiment of the present invention.

Referring to FIG. 7 , content display screens 711 , 713 , and 715 according to a state in which the main body 701 and the flexible display 703 are drawn out are shown. That is, the display area of the flexible display 703 may be gradually expanded, and accordingly, the content displayed on the display area may also be gradually expanded and displayed.

The controller 105 may determine whether to display the content from the upper end or the lower end on the flexible display 703 according to the attribute of the content. The attribute of the content may be, for example, a video, a still image, a list including a plurality of ranked items, and a list including a plurality of non-ranked items.

For example, when the attribute of the content includes a plurality of ranked items, the controller 105 displays the title of the list first as the flexible display 703 is drawn out, and then displays the content from the bottom. The display 703 may be controlled. That is, after the title of the list is displayed on the flexible display 703 , the controller 105 may control the flexible display 703 to display the content while moving in the same direction as the drawing direction of the flexible display 703 .

In the first drawing, the flexible display 703 is partially drawn out in the downward direction. A portion 711 of content may be displayed on the flexible display 703 . For example, the title of the ranked list may be displayed on the flexible display 703 .

In the second drawing, the flexible display 703 is further drawn out in the lower direction. A portion 713 of content may be displayed on the flexible display 703 . For example, a portion of the items in the ranked list may be displayed from the last ranking on the flexible display 703 . When the order of items is item 1, item 2, item 3, and item 4, item 4 may be displayed on the display area, and then item 3 may be displayed.

In the third drawing, the flexible display 703 is completely drawn out from the main body 701, and the entire display area is exposed to the outside. The entire content 715 may be displayed on the display area of the flexible display 703 . For example, the title and all items of the ranked list may be displayed on the flexible display 703 . In this case, the order in which all the items are displayed may be displayed in the order of item 4 → item 3 → item 2 → item 1. That is, after displaying the title, as the flexible display 703 is drawn out, the controller 105 may control the flexible display 703 to display the content while moving in the same direction as the drawing direction of the flexible display 703. .

Referring to FIG. 8 , content display screens 811 , 813 , and 815 according to a state in which the main body 801 and the flexible display 803 are drawn out are shown. That is, the display area of the flexible display 803 may be gradually expanded, and accordingly, the content displayed on the display area may also be displayed while being gradually expanded.

The controller 105 may determine whether to display the content from the top or the bottom on the flexible display 803 according to the properties of the content. The attribute of the content may be, for example, a video, a still image, a list including a plurality of ranked items, and a list including a plurality of non-ranked items.

For example, when the attribute of the content includes a plurality of items that are not ranked, the controller 105 may display the content from the top as the flexible display 803 is drawn out. That is, the controller 105 may control the flexible display 803 to display the content while moving it in the same direction as the drawing direction of the flexible display 803 .

In the first drawing, the flexible display 803 is partially drawn out in the downward direction. A portion 811 of content may be displayed on the flexible display 803 . For example, the title of the non-ranked list may be displayed on the flexible display 803 .

In the second drawing, the flexible display 803 is further drawn out in the lower direction. A portion 813 of content may be displayed on the flexible display 803 . For example, a portion of the items in the non-ranked list may be displayed on the flexible display 803 . When the order of items is item 1, item 2, item 3, and item 4, item 1 may be displayed in the order of item 2 in the display area.

In the third drawing, the flexible display 803 is completely drawn out from the main body 801 , and the entire display area is exposed to the outside. The entire content 815 may be displayed on the display area of the flexible display 803 . For example, the title and all items of the non-ranked list may be displayed on the flexible display 803 . In this case, the order in which all items are displayed may be displayed in the order of item 1 → item 2 → item 3 → item 4. That is, as the flexible display 803 is drawn out, the controller 105 may control the flexible display 803 to display the content while moving in a direction opposite to the drawing direction of the flexible display 803 .

9 is a flowchart illustrating a processing process when the electronic device 100 is powered on according to another embodiment of the present invention.

When the electronic device 100 is powered on, the electronic device 100 may display a first image on the flexible display 103 (step S901). In this case, the first image is displayed during the booting time of the electronic device 100 . This may be the displayed boot image. The boot image may be a logo of a manufacturer or an image preset by a user. For example, when the electronic device 100 is turned on and booting starts, the electronic device 100 may display a logo image.

Also, when the power is turned on, the electronic device 100 starts pulling out the flexible display 103 from the main body 101 . As the flexible display 103 is drawn out from the main body 101 , a portion of the booting image may be displayed on the flexible display 103 .

When booting of the electronic device 100 is progressed, the electronic device 100 may display a second image on the flexible display 103 (step S903). The second image includes EPG (Electronic Program Guide) data and the user's It may be a to-do list, user's schedule data, and an image set by the user. Here, the EPG data may be EPG data synchronized during the last operation previously performed by the electronic device 100 .

After that, the electronic device 100 may check the network connection. (Step S905) When the network is connected, the electronic device 100 may display user setting information on the flexible display 103 (Step S907). ) Here, the user setting information may be information stored by the user, such as real-time search terms and real-time viewer ratings.

When booting is completed, the electronic device 100 may perform a normal operation (step S907 ). As booting is completed, the flexible display 103 may be pulled out from the main body 101 .

10 is a flowchart illustrating a process when the power of the electronic device 100 is turned off according to another embodiment of the present invention.

When the power of the electronic device 100 is turned off during operation, the electronic device 100 starts to rewind the flexible display 103 into the main body 101 . In this case, a third image may be displayed on the flexible display 103 . (Step S1001 ) The third image may be an image preset when the electronic device 100 is manufactured or an image set by a user.

The electronic device 100 may store EPG data while the flexible display 103 is rewound into the main body 101 (step S1003). Also, the electronic device 100 may synchronize a task or schedule. ( step S1005)

11 is a block diagram of an electronic device 200 according to another embodiment of the present invention. Referring to FIG. 11 , a flexible display 1101 and a main body 1110 are illustrated. The body 1110 may include a control unit 1105 and a sensing unit 1103 . In addition, a storage space for accommodating the flexible display 1101 may be provided in the body 1110 .

The flexible display 1101 may be wound into the body 1110 or may be mounted to be withdrawn from the body 1110 . The flexible display 1101 may be manually withdrawn from the main body 1110 . When the flexible display 1101 is drawn out from the main body 1110 , the display area may be exposed to the outside. The size of the display area of the flexible display 1101 may change according to an amount drawn out from the main body 1110 .

The sensing unit 1103 may detect the withdrawal and/or the amount of withdrawal of the flexible display 1101 . The sensing unit 1103 may include an optical sensor, a gyro sensor, and a proximity sensor. The optical sensor may be a barcode sensor, and by recognizing a barcode printed on the flexible display 1101 , it is possible to detect the amount of withdrawal and withdrawal of the flexible display 1101 . In addition, the photosensor may recognize a color pattern or a black-and-white pattern printed on the flexible display 1101 to detect the amount of drawing and/or drawing of the flexible display 1101 . The gyro sensor may be mounted on the flexible display 1101 , and a signal output from the gyro sensor may be changed according to an amount drawn out of the flexible display 1101 .

The controller 1105 controls the overall operation of the electronic device 200 , and may determine the amount of drawing of the flexible display 1101 based on a signal output from the sensing unit 1103 . The controller 1105 may control the content displayed on the flexible display 1101 to scroll in a direction opposite to the drawing direction of the flexible display 1101 based on the amount of drawing of the flexible display 1101 . As the flexible display 1101 is drawn out, the size of the display area of the flexible display 1101 is changed. The controller 1105 may measure the withdrawal amount and the withdrawal speed of the flexible display 1101 based on the signal output from the sensing unit 1103 . The controller 1105 may scroll the content displayed on the flexible display 1101 in a direction opposite to that of the flexible display 1101 based on the amount of the flexible display 1101 withdrawn and the withdrawal speed. For example, when the flexible display 1101 is drawn out in the lower direction, the controller 1105 may scroll the content displayed on the flexible display 1101 in an upper direction opposite to the drawing direction of the flexible display 1101. . In this case, the scroll speed of the content may be proportional to the retrieval speed of the flexible display 1101 .

12 to 15 are diagrams illustrating content displayed on a display area when the flexible display is pulled out by the electronic device 200 according to another embodiment of the present invention.

Referring to FIG. 12 , the electronic device 200 , main bodies 1201 and 1203 , and a flexible display 1205 are illustrated. The electronic device 200 may be a mobile device. of the electronic device 200 may form a cylindrical or polygonal column shape through the main bodies 1201 and 1203 and the flexible display 1205, and are separated to the left and right of the electronic device 200 and are located inside the main bodies 1201 and 1203. The flexible display 1205 may be exposed. The body may include a left body 1201 and a right body 1203 . The left portion of the flexible display 1205 may be wound around the left body 1201 , and the right portion of the flexible display 1205 may be wound around the right body 1203 .

A handle 1201 may be included in the left body 1201 to make it easier to take out the flexible display 1205 . A handle 1204 may be included in the right body 1203 to facilitate taking out the flexible display 1205 . When the user grabs the handles 1202 and 1204 and pulls the main bodies 1201 and 1203 left and right, the flexible display 1205 may be pulled out. When the electronic device 200 does not have a separate driving unit for drawing out the flexible display 1205 , the user can take out the flexible display 1205 from the main bodies 1201 and 1203 using the handles 1202 and 1204 . can

As the flexible display 1205 is drawn out from the main bodies 1201 and 1203 , the display area may be exposed. When the flexible display 1205 starts to be exposed, the controller 1105 may control the flexible display 1205 to display the content 1211 in the exposed display area. In this case, the content displayed on the display area may be a part of the entire content.

The control unit 1105 determines the central position 1215 of the currently exposed flexible display 1205 based on the signal output from the sensing unit 1103, and displays the content based on the central position 1215 of the flexible display ( 1205) can be controlled. That is, the controller 1105 may control the flexible display 1205 so that the central portion of the content matches the central position 1215 of the flexible display 1205 and displays the same. In addition, the control unit 1105 controls a left-hand pull-out speed at which the flexible display 1205 is drawn out from the left body 1201 and a left-hand pull-out speed at which the flexible display 1205 is drawn out from the right body 1203 based on the signal output from the sensor 1103 . A right fetch rate may be determined, and the flexible display 1205 may be controlled so that the content is displayed while being expanded from the center to the left and right according to the left fetch rate and the right fetch rate. In this case, the speed at which the content is expanded and displayed may be different for the left and right sides, respectively.

When the flexible display is drawn out from the main bodies 1201 and 1203, the left speed at which the left part of the flexible display 1205 is drawn out from the left body 1201 and the right part at which the right part of the flexible display 1205 is drawn out from the right body 1203 The right speed may be different, and the amount of left and right withdrawals may also be different. Even if the left and right withdrawal amounts of the flexible display 1205 are different, the control unit 1105 determines the central position 1215 based on the currently exposed display area, and aligns the center of the content with the central position 1215 to display the content. .

Referring to FIG. 13 , main bodies 1301 and 1303 and a flexible display 1305 are illustrated. The electronic device 200 may be a mobile device. The body may include a left body 1301 and a right body 1303 . When the user pulls the left body 1301 and the right body 1303 in the left and right directions 1321 and 1323 , the flexible display 1305 may be withdrawn from the main bodies 1301 and 1303 .

As the flexible display 1305 is drawn out from the main bodies 1301 and 1303 , the display area may be expanded and the horizontal and vertical ratios of the display area may be changed. When the horizontal and vertical ratios of the display area match the threshold value, the controller 1105 may provide a feedback corresponding to the threshold value. The feedback may be visual feedback, auditory feedback and/or tactile feedback. The controller 1105 may provide feedback when the display area of the flexible display 1305 is gradually expanded so that the horizontal and vertical ratios of the display area become a ( 1311 ), b ( 1313 ), and c ( 1315 ), respectively.

For example, when the display area of the flexible display 1305 is expanded and the horizontal and vertical ratio of the display area becomes 4:3, the controller 1105 displays a line corresponding to 4:3 on the display area, or displays an audio sound. may generate or give haptic feedback. If the display area continues to expand and the aspect ratio of the display area becomes 16:9, the controller 1105 displays a line corresponding to 16:9 on the display area, generates a sound, or reduces haptic feedback. can If the display area continues to expand so that the aspect ratio of the display area becomes 21:9, the controller 1105 displays a line corresponding to 21:9 on the display area, generates a sound, or provides haptic feedback. can

Referring to FIG. 14 , main bodies 1401 and 1403 and a flexible display 1405 are shown. The electronic device 200 may be a mobile device. The body may include an upper body 1401 and a lower body 1403 . When the user pulls the upper body 1401 and the lower body 1403 in the vertical directions 1421 and 1423 , the flexible display 1405 may be withdrawn from the body.

As the flexible display 1405 is drawn out from the main bodies 1401 and 1403 , the display area may be expanded and the horizontal and vertical ratios of the display area may be changed. When the horizontal and vertical ratios of the display area match the threshold value, the controller 1105 may provide a feedback corresponding to the threshold value. The feedback may be visual feedback, auditory feedback and/or tactile feedback. The controller 1105 may provide feedback when the display area of the flexible display 1405 is gradually expanded and the horizontal and vertical ratios of the display area become a 1411 , b 1413 , and c 1415 , respectively.

For example, when the display area of the flexible display is expanded and the horizontal and vertical ratio of the display area becomes 3:4, the controller 1105 displays a line corresponding to 3:4 on the display area or generates a sound or Alternatively, haptic feedback may be provided. If the display area continues to expand and the aspect ratio of the display area becomes 9:16, the controller 1105 displays a line corresponding to 9:16 on the display area, generates a sound, or provides haptic feedback. can If the display area continues to expand and the aspect ratio of the display area becomes 9:21, the controller 1105 displays a line corresponding to 9:21 on the display area, generates a sound, or provides haptic feedback. can

Referring to FIG. 15 , the electronic device 200 , main bodies 1501 and 1503 , and a flexible display 1511 are illustrated. The electronic device 200 may be a mobile device. The electronic device 200 forms a cylindrical or polygonal column shape through main bodies 1501 and 1503 and the flexible display 1511, and as the electronic device 200 is separated to the left and right, the flexible display ( 1511) may be exposed. The body may include a left body 1501 and a right body 1503 . The left portion of the flexible display 1511 may be wound around the left body 1501 , and the right portion of the flexible display 1511 may be wound around the right body 1503 .

A handle 1502 may be included in the left body 1501 to make it easier to take out the flexible display 1511 . A handle 1504 may be included in the right body 1503 to facilitate taking out the flexible display 1511 . When the user grabs the handles 1502 and 1504 and pulls the bodies 1501 and 1503 left and right, the flexible display 1511 may be pulled out. When the electronic device 200 does not have a separate driving unit for drawing out the flexible display 1511, the user can take out the flexible display 1511 from the main bodies 1501 and 1503 using the handles 1502 and 1504. can

In the left figure, as the flexible display 1511 is drawn out from the main bodies 1501 and 1503 , the display area 1505 may be exposed. Contents 1521 , 1522 , and 1523 may be displayed in the display area 1505 . In this case, the content displayed on the display area may be a part of the entire content. The contents 1521 , 1522 , and 1523 may be icons. The controller 1105 may determine the display order of the content displayed on the display area based on the attribute of the content. When the content is an icon, the controller 1105 may display the content in the display area from the left side. For example, when the display area 1505 of the flexible display 1511 is partially exposed, the controller 1105 displays the entire contents 1521 , 1522 , 1523 , 1524 , 1525 , 1526 , 1527 , 1528 in the display area 1505 . , 1529 , the flexible display 1511 may be controlled to display contents 1521 , 1522 , and 1523 corresponding to the first left column.

As the flexible display 1511 continues to expand left and right, the display area 1507 expands, and the expanded display area 1507 includes all contents 1521 , 1522 , 1523 , 1524 , 1525 , 1526 , 1527 , 1528 , 1529 . ) may be displayed.

16A and 16B are diagrams illustrating an example of detecting a withdrawal amount of a flexible display using a pattern.

Referring to FIG. 16A , a body 1601 , a flexible display 1603 , and a sensing unit 1605 are illustrated. The flexible display 1603 may be wound into the body or drawn out of the body. The drawing direction of the flexible display may be a bottom direction 1643 . The sensing unit 1605 may be an optical sensor, and may detect the pattern 1610 printed on the flexible display. The pattern 1610 may be a QR code, a barcode, a black-and-white pattern, or a color pattern corresponding to a pixel line of the flexible display 1603 . As the flexible display 1603 is drawn out, the value of the pattern 1610 printed on the flexible display 1603 may be changed, and the controller 1105 pulls out the flexible display 1603 according to the changed value of the pattern 1610 . quantity can be detected.

Referring to FIG. 16B , patterns 1611 , 1613 , and 1615 printed on the flexible display 1603 are illustrated. The pattern 1610 printed on the flexible display 1603 may be a diagonal line 1611 , a QR code 1613 , or a color pattern 1615 .

The pattern 1610 may be printed on the display area of the flexible display 1603 . Alternatively, the pattern 1610 may be printed on the rear surface of the flexible display 1603 . Alternatively, the pattern 1610 may be displayed on the display area of the flexible display 1603 .

The dotted line AB 1621 is a virtual line indicating a state in which the flexible display 1603 is wound inside the main body 1601 . The dotted line CD 1623 is a virtual line indicating a state in which the flexible display 1603 is completely drawn out of the main body 1603 .

For example, a diagonal pattern 1611 may be printed on the flexible display 1603 . In the diagonal pattern 1611 , a position at which the pattern is sensed may be changed according to the amount of drawn out of the flexible display 1603 . The controller 1105 may determine the amount of drawing of the flexible display 1603 based on a position where the pattern 1610 is sensed.

The pattern 1613 may be in the form of a QR code, a barcode, or a marking that can be distinguished from each other, and may be printed in a pattern having a different shape for each pixel line. The controller 1105 may analyze the QR code signal output from the sensor 1605 to determine the amount of withdrawal of the flexible display 1603 .

The pattern 1615 is a color pattern, and color patterns of different colors may be printed at positions corresponding to pixel lines. The controller 1105 may analyze the color signal output from the sensor 1605 to determine the amount of drawing of the flexible display 1603 .

17A and 17B are diagrams illustrating an example of detecting the amount of drawing of the flexible display 1717 using a gyro sensor.

Referring to FIG. 17A , a main body 1701 and a flexible display 1717 are illustrated. The drawing-out direction of the flexible display 1717 is the bottom direction 1643 .

Flexible display pull-out guides 1713 and 1711 and gyro sensors 1703 and 1705 may be installed on the rear surface of the flexible display 1717 . The gyro sensor 1703 may be installed in the withdrawal guide 1711 . The gyro sensor 1705 may be installed in the withdrawal guide 1713 .

The flexible display 1717 is completely drawn out to the outside of the main body 1701 , and the angle 1715 formed by the pull-out guide 1713 and the pull-out guide 1711 may be the maximum. At this time, the difference between the data value of the gyro sensor 1705 and the data value of the gyro sensor 1703 may be the maximum. When the difference between the data values of the two gyro sensors 1705 and 1703 is the maximum, the controller 1105 may determine that the flexible display 1717 is completely drawn out of the main body 1701 .

Referring to FIG. 17B , the flexible display 1727 is slightly drawn out of the main body. At this time, the angle 1723 made by the two guides is smaller than the angle 1725 made by the two guides when the flexible display 1717 is fully drawn out. Also, the difference between the data values of the two gyro sensors 1705 and 1703 is relatively smaller than when the flexible display 1717 is fully drawn out.

That is, the controller 1105 may determine the amount of fetching of the flexible display 1727 from the difference between the data values of the two gyro sensors 1705 and 1703 . Also, the controller 1105 may determine whether the flexible display 1727 is being drawn out or rolled from the amount of change in the difference between the data values of the two gyro sensors 1705 and 1703 . Also, the controller 1105 may determine the drawing speed or the winding speed of the flexible display 1727 from the amount of change in the difference between the data values of the two gyro sensors 1705 and 1703 .

18A and 18B are diagrams illustrating an example of detecting a withdrawal amount of a flexible display using a gyro sensor and a proximity sensor. In particular, it is a view showing a cross-sectional view of the main body.

Referring to FIG. 18A , a main body 1801 , a flexible display 1803 , a gyro sensor 1805 and a proximity sensor 1807 are illustrated. The flexible display 1803 is wound inside the main body 1801 . The flexible display 1803 may be wound into the main body 1801 while rotating or may be drawn out of the main body 1801 . A gyro sensor 1805 may be installed on a rotation axis of the flexible display 1803 .

The gyro sensor 1805 may be rotated as the flexible display 1803 is drawn out or wound. As the gyro sensor 1805 is rotated, the signal output from the gyro sensor 1805 changes, and the controller 1105 controls whether the flexible display 1803 is drawn out or wound based on the signal output from the gyro sensor 1805 . can sense that

The proximity sensor 1807 may detect proximity of the flexible display 1803 . There is a difference between the proximity degree when the flexible display 1803 is fully drawn out and the proximity degree when the flexible display 1803 is completely wound, and accordingly, an output value of the proximity sensor 1807 may be changed. That is, since the output value of the proximity sensor 1807 is changed according to the degree of drawing out of the flexible display 1803, the controller 1105 can determine the amount of drawing out of the flexible display 1803 based on the output signal of the proximity sensor 1807. have.

19 is a diagram illustrating an example of sensing the amount of drawing of the flexible display 1903 using a variable resistor.

Referring to FIG. 19 , a main body 1901 , a flexible display 1903 , a resistance adjustment unit 1905 , and a variable resistor 1907 are illustrated. The variable resistor 1907 may be positioned in the flexible display 1903 . The resistance value of the resistance adjuster 1905 is changed according to the amount of withdrawal of the flexible display 1903 , and the controller 1105 determines the amount of withdrawal of the flexible display 1903 through the difference in the current value flowing to the resistance adjuster 1905 . can

20 is a diagram illustrating another example of sensing the amount of drawing of the flexible display 2003 using a variable resistor.

Referring to FIG. 20 , a main body 2001 and a flexible display 2003 are illustrated. The flexible display 2003 is wound inside the main body 2001 . The flexible display 2003 may be wound into the main body 2001 while rotating or may be drawn out of the main body 2001 . A variable resistor 2005 may be installed on the rotation axis of the flexible display 2003 . The resistance value of the variable resistor 2005 is changed according to the amount of rotation. When the flexible display 2003 is drawn out of the main body 2001 or wound into the main body 2001 , the variable resistor 2005 installed on the rotation shaft of the flexible display 2003 rotates and the resistance value may be changed. As the resistance value changes, the value of the current passing through the variable resistor 2005 may change, and the controller 1105 determines the amount of drawing of the flexible display 2003 according to the current value passing through the variable resistor 2005 . can That is, the controller 1105 may determine the amount of drawing of the flexible display 2003 based on the signal output from the variable resistor 2005 .

In the above, various embodiments of the present invention have been illustrated and described, but the embodiments disclosed in the present specification and drawings are merely provided to provide specific examples to facilitate understanding and to easily explain the contents of the present invention, and to extend the scope of the present invention. It is not meant to be limiting. Therefore, the scope of the present invention should be construed as including all changes or modifications derived based on the technical spirit of the present invention in addition to the embodiments disclosed herein are included in the scope of the present invention.

100: electronic device
103: flexible display
110: body
101: drive unit
105: control unit
107: sensing unit

Claims (20)

main body;
a flexible display electrically connected to the main body and mounted to be withdrawable from the main body;
a motor for drawing out the flexible display from the main body in a first direction;
a sensing unit outputting a signal corresponding to the rotation speed of the motor; and
When the flexible display is drawn out in the first direction by the motor, the motor is controlled to expose a first area of the flexible display accommodated in the main body to the outside, and the flexible display is configured to display first information on the first area. control the display,
When the flexible display is drawn out in the first direction by the motor while the first information is provided on the first region, the motor is controlled such that the second region of the flexible display accommodated in the main body is exposed to the outside. and a controller configured to control the flexible display to display second information on the first area and display the first information on the second area; and
The second region is exposed at a position closer to the body than the first region,
The control unit is
Determine a retrieval speed of the flexible display based on the signal output from the sensing unit, determine a display position movement speed of information based on the retrieval speed, determine a resolution of the flexible display together with the retrieval speed, and the flexible display An electronic device that determines the number of pixels to be moved so as to correspond to a movement speed of the display position of the information based on a size and a refresh rate of . The method of claim 1,
wherein the control unit controls the motor. delete The method of claim 1,
The control unit is
The electronic device of claim 1 , wherein an amount of drawing out of the flexible display is determined based on a signal output from the sensing unit, and an amount of moving the display position of the information is determined based on the amount of drawing out. delete 5. The method of claim 4,
The control unit is
and providing a feedback corresponding to the threshold value when the withdrawal amount coincides with a threshold value. 7. The method of claim 6,
the threshold value includes a first value and a second value;
The control unit is
and providing a feedback corresponding to a first value when the withdrawal amount exceeds a first value, and providing a feedback corresponding to a second value when the withdrawal amount exceeds a second value. 7. The method of claim 6,
The feedback is visual feedback,
The control unit is
and controlling the flexible display to display a line corresponding to the threshold value on the flexible display. The method of claim 1,
The control unit is
When the flexible display is wound, the display position of the first information displayed on the flexible display is changed in a direction opposite to the direction in which the flexible display is wound, and a black screen is displayed in an area not exposed to the outside of the flexible display. An electronic device, characterized in that controlling the flexible display to display. The method of claim 1,
The control unit is
When the flexible display is wound, the display position of the first information displayed on the flexible display is changed to a direction opposite to the direction in which the flexible display is wound, and an area not exposed to the outside of the flexible display is turned off electronic device with A method for displaying content in an electronic device, the method comprising:
drawing out the flexible display from the main body in a first direction by a motor;
When the flexible display is drawn out in the first direction by the motor, the motor is controlled to expose a first area of the flexible display accommodated in the main body to the outside, and the flexible display is configured to display first information on the first area. controlling the display;
When the flexible display is drawn out in the first direction by the motor while the first information is provided on the first region, the motor is controlled such that the second region of the flexible display accommodated in the main body is exposed to the outside. and controlling the flexible display to display second information on the first area and display the first information on the second area;
The second region is exposed at a position closer to the body than the first region,
The content display method includes:
determining a drawing speed of the flexible display based on a signal corresponding to the rotation speed of the motor output from a sensor;
determining a display position movement speed of information based on the retrieval speed; and
determining the number of pixels to be moved to correspond to the display position movement speed of the information based on the resolution of the flexible display, the size and refresh rate of the flexible display along with the retrieval speed; display method. delete 12. The method of claim 11,
The method is
determining an amount of drawing out of the flexible display based on the rotation speed of the motor;
determining the amount of movement of the display position of the information based on the amount of retrieval; delete 14. The method of claim 13,
The method is
determining whether the withdrawal amount matches a threshold value; and
and providing feedback corresponding to the threshold value when the retrieval amount matches the threshold value. 16. The method of claim 15,
the threshold value includes a first value and a second value;
The step of providing the feedback includes:
When the withdrawal amount exceeds a first value, feedback corresponding to a first value is provided, and when the withdrawal amount exceeds a second value, feedback corresponding to a second value is provided. Way. 16. The method of claim 15,
The feedback is visual feedback,
The step of providing the feedback includes:
The content display method of the electronic device, characterized in that the line corresponding to the threshold value is displayed on the flexible display. 12. The method of claim 11,
The method is
detecting the winding of the flexible display; and
Changing the display position of the first information displayed on the flexible display in a direction opposite to a winding direction of the flexible display; 19. The method of claim 18,
The method is
Displaying a black screen on an area not exposed to the outside of the flexible display; 19. The method of claim 18,
The method is
The method of displaying content for an electronic device according to claim 1, further comprising: turning off a screen of an area that is not exposed to the outside of the flexible display.

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